IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1964 ****** -1.4 7.7 8.6 14.9 20.8 23.4 24.1 22.2 15.9 6.4 1.0 ****** 1965 -3.0 1.0 8.9 10.1 17.3 20.6 23.5 23.5 20.0 13.4 9.3 4.2 26.5 1966 5.6 5.4 7.1 10.1 14.9 19.8 23.4 24.6 20.3 14.1 8.7 3.2 21.4 1967 -3.0 -6.3 2.4 8.4 14.3 16.9 22.4 22.1 18.0 13.0 3.4 -3.4 28.7 1968 -8.0 -1.9 6.9 9.2 12.7 17.1 21.4 20.3 18.1 14.3 7.8 3.2 29.4 1969 -0.9 -1.2 8.2 10.2 16.9 21.1 22.5 22.8 18.1 15.5 5.5 3.4 24.0 1970 1.4 2.4 6.5 12.1 15.8 20.8 23.2 23.4 19.2 14.2 10.1 2.2 22.0 1971 -7.7 -2.3 7.3 9.3 17.7 20.6 23.7 22.6 20.0 14.4 8.1 4.6 31.4 1972 -7.8 -10.9 -2.4 12.9 13.6 18.6 22.5 21.8 20.1 15.5 5.3 -4.8 33.4 1973 -9.7 0.9 4.8 9.7 17.8 21.8 24.0 24.7 20.6 16.1 5.4 1.8 34.4 1974 -3.9 -4.0 4.5 11.0 20.3 23.9 25.1 24.7 20.3 15.7 15.4 2.8 29.1 1975 1.1 2.8 5.5 11.8 14.6 20.8 ****** ****** ****** 12.6 10.4 2.2 ****** 1976 0.6 -0.6 1.1 6.5 11.8 16.4 22.0 24.3 22.6 13.1 6.1 3.8 24.9 1977 -8.0 1.7 6.8 10.5 14.4 20.5 23.4 24.4 21.0 12.3 7.0 0.0 32.4 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 -2.8 3.3 4.5 10.9 14.4 19.4 25.2 23.9 21.0 15.5 6.6 0.3 28.0 1980 -4.0 -0.4 6.0 3.1 17.2 21.7 26.3 23.0 9.4 2.5 0.8 0.7 30.3 1981 1.9 10.1 11.4 10.1 11.3 10.3 22.4 22.8 19.3 12.1 5.4 ****** ****** 1982 0.8 -5.4 3.1 12.8 16.0 20.6 24.3 22.7 20.3 12.9 3.0 ****** ****** 1983 ****** ****** ****** ****** ****** ****** 25.1 ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 -4.9 ****** 2.0 10.1 13.2 19.1 23.4 ****** 18.4 14.3 7.2 2.2 ****** 1993 ****** -0.8 3.8 11.6 15.1 20.0 22.9 23.0 20.7 13.6 5.4 0.8 ****** 1994 2.0 2.8 7.5 13.4 16.1 20.7 22.7 22.8 18.6 14.2 9.0 0.5 22.3 1995 3.5 3.6 7.8 11.4 16.6 20.0 23.7 24.8 20.5 12.9 7.7 ****** ****** 1996 0.3 3.9 5.3 10.6 17.5 20.2 24.0 24.1 21.5 13.6 6.8 6.5 23.8 1997 1.6 -1.5 2.6 10.9 16.5 21.5 23.9 24.5 19.6 16.1 7.4 4.7 26.0 1998 -2.8 -0.4 6.7 12.6 17.1 22.6 23.9 24.7 20.6 14.8 12.1 6.7 27.5 1999 2.1 5.1 6.9 12.4 18.7 22.9 23.1 26.0 20.6 16.2 7.6 3.6 23.9 2000 1.2 1.8 5.9 14.7 18.2 21.6 25.9 25.0 20.7 13.5 6.4 3.4 24.7 2001 0.4 3.4 ****** 14.5 17.2 22.1 23.9 25.8 22.1 15.4 7.8 5.6 ****** 2002 -0.3 3.7 8.4 11.8 15.9 20.7 24.1 23.5 21.8 17.1 8.0 -0.3 24.4 2003 1.8 2.7 5.3 12.4 16.5 20.8 23.9 24.3 20.0 17.4 7.3 2.6 22.5 MEAN -1.5 0.6 5.6 10.8 15.8 20.1 23.6 23.7 19.9 14.1 7.2 2.3 25.2 SD 4.02 4.08 2.76 2.29 2.06 2.48 1.11 1.25 2.35 2.61 2.72 2.62 2.53 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** -4.7 2.4 2.0 4.8 9.7 13.0 13.7 12.2 7.7 -0.4 -4.0 ****** 1965 -8.3 -3.4 2.9 3.3 8.4 11.2 13.8 13.7 10.8 5.5 2.6 -3.3 4.8 1966 -0.4 0.4 1.4 3.6 5.1 7.5 13.2 15.6 11.9 7.7 2.8 -0.9 5.7 1967 -7.3 -10.4 -1.5 2.6 5.9 8.0 12.2 12.6 9.7 5.9 -2.0 -8.4 2.3 1968 -12.6 -7.1 1.5 3.5 5.9 8.5 10.7 8.7 6.7 3.9 -0.0 -2.8 2.2 1969 -4.7 -6.8 3.3 4.4 8.9 10.8 13.0 12.4 8.5 7.6 -2.6 -3.7 4.3 1970 -5.8 -4.9 -0.2 3.7 7.3 10.9 13.1 13.7 8.9 3.7 2.8 -3.7 4.1 1971 -13.2 -8.6 -0.4 1.6 8.7 11.2 13.8 13.5 9.3 4.1 2.8 0.8 3.6 1972 -13.6 -18.4 -7.6 6.6 6.7 7.8 11.7 11.5 10.3 5.1 -2.2 -11.3 0.5 1973 -17.0 -4.1 -3.8 2.3 11.7 14.4 14.1 14.0 11.0 9.1 0.3 -1.6 4.2 1974 -7.5 -8.1 0.9 5.3 12.6 15.9 18.6 17.7 13.3 7.6 7.3 -1.5 6.8 1975 -2.8 -0.9 0.7 4.0 6.0 10.6 ****** ****** ****** 5.5 3.0 -1.2 ****** 1976 -1.7 -2.8 -1.5 3.6 7.6 9.7 15.3 17.9 16.8 5.7 -0.2 0.3 5.9 1977 -12.3 -3.7 1.8 5.1 8.1 12.1 15.6 15.9 12.4 5.6 0.5 -3.3 4.8 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 -6.8 -1.8 -1.1 4.2 7.4 11.6 15.0 14.7 12.0 8.3 -0.2 -4.1 4.9 1980 -8.5 -4.1 1.6 -1.4 9.5 13.3 17.2 14.6 1.5 -2.6 -5.7 -3.7 2.6 1981 -1.7 5.1 7.5 6.5 4.3 3.5 15.5 14.6 10.5 4.8 -0.3 ****** ****** 1982 -5.6 -11.1 -2.4 5.7 9.8 11.5 14.9 13.5 11.3 6.8 -1.5 ****** ****** 1983 ****** ****** ****** ****** ****** ****** 16.1 ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 -9.2 ****** -3.4 4.3 8.2 11.8 14.9 ****** 9.9 6.5 2.2 -1.2 ****** 1993 ****** -4.4 -0.8 6.0 9.3 12.7 15.4 15.5 12.6 7.2 1.8 -1.7 ****** 1994 -1.1 -1.4 2.7 7.1 9.7 13.9 15.7 15.1 11.9 7.8 4.7 -2.7 6.9 1995 -1.1 -0.7 1.7 5.7 10.1 12.9 16.3 16.1 13.1 5.8 2.1 ****** ****** 1996 -2.6 -0.3 1.0 5.2 11.0 12.9 16.5 15.2 13.3 6.9 0.7 1.7 6.8 1997 -2.5 -6.3 -1.0 5.2 9.9 14.0 16.3 15.8 12.1 9.3 2.9 0.5 6.3 1998 -6.5 -4.2 1.9 6.4 10.5 14.5 16.8 16.6 12.6 7.5 6.4 1.4 7.0 1999 -1.4 -0.1 1.0 5.7 11.2 14.7 15.7 17.9 12.4 9.4 2.4 -1.6 7.3 2000 -2.6 -3.4 0.1 8.6 11.1 13.3 17.4 16.7 12.6 6.8 1.1 -0.3 6.8 2001 -3.7 -1.2 ****** 7.9 9.6 13.6 16.0 17.1 14.2 8.4 2.7 2.1 ****** 2002 -4.3 -1.4 2.2 7.0 9.1 12.6 16.3 15.0 13.0 10.0 2.4 -3.2 6.6 2003 -1.7 -1.1 1.2 7.2 9.7 13.8 16.3 16.1 12.1 10.4 2.7 -0.3 7.2 MEAN -5.9 -4.1 0.4 4.8 8.6 11.6 15.0 14.8 11.3 6.6 1.3 -2.1 5.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** 2.0 13.1 15.3 25.0 32.0 33.8 34.4 32.2 24.0 13.2 5.9 ****** 1965 2.2 5.4 14.8 16.9 26.3 30.0 33.2 33.2 29.3 21.3 15.9 11.6 20.0 1966 11.6 10.3 12.7 16.7 24.6 32.1 33.5 33.6 28.8 20.5 14.6 7.3 20.5 1967 1.2 -2.2 6.3 14.2 22.6 25.8 32.5 31.7 26.3 20.0 8.8 1.6 15.7 1968 -3.4 3.4 12.2 15.0 19.6 25.6 32.1 31.8 29.5 24.7 15.7 9.3 18.0 1969 2.9 4.5 13.1 16.0 24.8 31.3 32.0 33.3 27.8 23.3 13.6 10.5 19.4 1970 8.6 9.6 13.3 20.5 24.3 30.7 33.3 33.1 29.6 24.7 17.3 8.1 21.1 1971 -2.3 3.9 14.9 17.0 26.8 29.9 33.6 31.7 30.8 24.6 13.3 8.3 19.4 1972 -2.1 -3.4 2.8 19.2 20.6 29.4 33.3 32.0 30.0 25.8 12.8 1.7 16.8 1973 -2.4 5.9 13.5 17.0 23.8 29.3 33.9 35.5 30.2 23.1 10.5 5.1 18.8 1974 -0.3 0.1 8.2 16.8 28.0 31.9 31.6 31.8 27.4 23.8 23.5 7.1 19.2 1975 5.0 6.5 10.3 19.6 23.2 31.1 ****** ****** ****** 19.8 17.8 5.5 ****** 1976 2.9 1.6 3.7 9.4 16.0 23.1 28.7 30.7 28.4 20.6 12.3 7.2 15.4 1977 -3.6 7.0 11.7 15.9 20.8 29.0 31.1 32.9 29.6 18.8 13.5 3.4 17.5 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 1.1 8.3 10.1 17.6 21.4 27.3 35.5 33.1 30.0 22.8 13.4 4.6 18.8 1980 0.4 3.4 10.6 7.7 25.0 30.1 35.4 31.3 17.3 7.5 7.3 5.3 15.1 1981 5.5 15.2 15.3 14.1 18.5 17.2 29.4 31.0 28.2 19.4 11.2 ****** ****** 1982 4.2 0.3 8.2 20.0 22.3 29.9 33.8 31.9 29.3 18.0 6.6 ****** ****** 1983 -5.5 -3.6 7.9 17.8 ****** ****** 34.1 ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 -0.4 ****** 7.3 15.9 18.2 26.5 31.9 ****** 26.8 22.1 12.2 5.6 ****** 1993 ****** 2.7 8.4 17.0 21.0 27.3 30.4 30.4 28.7 20.0 9.0 3.3 ****** 1994 5.1 7.0 12.3 19.6 22.6 27.4 29.8 30.5 25.4 20.7 13.3 3.6 18.1 1995 8.1 7.9 13.9 17.1 23.1 27.2 31.1 33.5 27.9 20.1 13.3 ****** ****** 1996 3.2 8.0 9.6 16.1 24.1 27.5 31.5 33.0 29.6 20.2 12.9 11.2 18.9 1997 5.8 3.2 6.2 16.7 23.1 29.0 31.5 33.3 27.1 23.0 12.0 8.9 18.3 1998 1.0 3.4 11.5 18.7 23.7 30.7 31.1 32.9 28.6 22.2 17.8 12.1 19.5 1999 5.6 10.4 12.9 19.1 26.1 31.0 30.5 34.0 28.8 23.0 12.7 8.7 20.2 2000 4.9 6.9 11.7 20.8 25.4 29.9 34.3 33.3 28.9 20.2 11.7 7.2 19.6 2001 4.6 8.0 ****** 21.2 24.8 30.5 31.8 34.5 30.0 22.4 12.9 9.1 ****** 2002 3.7 8.9 14.6 16.6 22.7 28.7 31.9 32.0 30.7 24.2 13.5 2.6 19.2 2003 5.3 6.4 9.4 17.5 23.2 27.9 31.5 32.5 27.9 24.5 11.9 5.4 18.6 MEAN 2.5 5.0 10.7 16.9 23.0 28.6 32.3 32.6 28.5 21.5 13.2 6.7 18.5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** 6.7 10.7 13.3 20.2 22.3 20.8 20.7 20.0 16.3 13.6 9.9 ****** 1965 10.5 8.8 11.9 13.6 17.9 18.8 19.4 19.5 18.5 15.8 13.3 14.9 15.2 1966 12.0 9.9 11.3 13.1 19.5 24.6 20.3 18.0 16.9 12.8 11.8 8.2 14.9 1967 8.5 8.2 7.8 11.6 16.7 17.8 20.3 19.1 16.6 14.1 10.8 10.0 13.5 1968 9.2 10.5 10.7 11.5 13.7 17.1 21.4 23.1 22.8 20.8 15.7 12.1 15.7 1969 7.6 11.3 9.8 11.6 15.9 20.5 19.0 20.9 19.3 15.7 16.2 14.2 15.2 1970 14.4 14.5 13.5 16.8 17.0 19.8 20.2 19.4 20.7 21.0 14.5 11.8 17.0 1971 10.9 12.5 15.3 15.4 18.1 18.7 19.8 18.2 21.5 20.5 10.5 7.5 15.7 1972 11.5 15.0 10.4 12.6 13.9 21.6 21.6 20.5 19.7 20.7 15.0 13.0 16.3 1973 14.6 10.0 17.3 14.7 12.1 14.9 19.8 21.5 19.2 14.0 10.2 6.7 14.6 1974 7.2 8.2 7.3 11.5 15.4 16.0 13.0 14.1 14.1 16.2 16.2 8.6 12.3 1975 7.8 7.4 9.6 15.6 17.2 20.5 ****** ****** ****** 14.3 14.8 6.7 ****** 1976 4.6 4.4 5.2 5.8 8.4 13.4 13.4 12.8 11.6 14.9 12.5 6.9 9.5 1977 8.7 10.7 9.9 10.8 12.7 16.9 15.5 17.0 17.2 13.2 13.0 6.7 12.7 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 7.9 10.0 11.2 13.4 14.0 15.7 20.5 18.4 18.0 14.5 13.6 8.7 13.8 1980 8.9 7.5 9.0 9.1 15.5 16.8 18.2 16.7 15.8 10.1 13.0 9.0 12.5 1981 7.2 10.1 7.8 7.6 14.2 13.7 13.9 16.4 17.7 14.6 11.5 ****** ****** 1982 9.8 11.4 10.6 14.3 12.5 18.4 18.9 18.4 18.0 11.2 8.1 ****** ****** 1983 ****** ****** ****** ****** ****** ****** 18.0 ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 8.8 ****** 10.7 11.6 10.0 14.7 17.0 ****** 16.9 15.6 10.0 6.8 ****** 1993 ****** 7.1 9.2 11.0 11.7 14.6 15.0 14.9 16.1 12.8 7.2 5.0 ****** 1994 6.2 8.4 9.6 12.5 12.9 13.5 14.1 15.4 13.5 12.9 8.6 6.3 11.2 1995 9.2 8.6 12.2 11.4 13.0 14.3 14.8 17.4 14.8 14.3 11.2 ****** ****** 1996 5.8 8.3 8.6 10.9 13.1 14.6 15.0 17.8 16.3 13.3 12.2 9.5 12.1 1997 8.3 9.5 7.2 11.5 13.2 15.0 15.2 17.5 15.0 13.7 9.1 8.4 12.0 1998 7.5 7.6 9.6 12.3 13.2 16.2 14.3 16.3 16.0 14.7 11.4 10.7 12.5 1999 7.0 10.5 11.9 13.4 14.9 16.3 14.8 16.1 16.4 13.6 10.3 10.3 13.0 2000 7.5 10.3 11.6 12.2 14.3 16.6 16.9 16.6 16.3 13.4 10.6 7.5 12.8 2001 8.3 9.2 ****** 13.3 15.2 16.9 15.8 17.4 15.8 14.0 10.2 7.0 ****** 2002 8.0 10.3 12.4 9.6 13.6 16.1 15.6 17.0 17.7 14.2 11.1 5.8 12.6 2003 7.0 7.5 8.2 10.3 13.5 14.1 15.2 16.4 15.8 14.1 9.2 5.7 11.4 MEAN 8.7 9.5 10.4 12.1 14.4 17.0 17.3 17.8 17.2 14.9 11.8 8.8 13.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** ****** 4.86 4.12 5.16 8.29 10.79 11.42 9.78 6.67 3.84 2.83 ****** 1965 1.91 3.14 5.34 5.10 7.89 10.01 11.04 11.42 8.56 5.89 4.20 3.44 6.49 1966 4.40 4.24 4.78 5.56 6.54 6.17 10.85 13.23 10.18 6.63 4.85 3.68 6.76 1967 2.01 1.34 3.58 4.76 5.87 6.55 10.29 11.24 8.79 6.20 3.67 2.07 5.53 1968 1.12 2.40 4.58 5.20 6.32 7.50 9.62 8.46 7.19 6.48 5.99 4.44 5.77 1969 3.43 3.12 5.42 6.13 8.13 8.75 10.07 10.19 8.11 8.16 4.30 3.87 6.64 1970 3.10 4.08 4.73 6.28 7.62 9.63 11.43 11.42 8.28 6.39 5.41 4.05 6.87 1971 2.23 3.32 4.90 5.95 8.22 9.62 10.75 10.82 5.33 5.32 5.05 4.36 6.32 1972 2.31 1.60 3.41 6.33 7.11 8.79 9.12 8.78 7.36 6.21 4.93 3.08 5.75 1973 2.13 3.70 4.03 5.21 6.77 7.42 9.55 9.08 6.91 6.14 3.68 3.47 5.67 1974 2.33 2.29 4.67 5.19 6.66 8.66 9.55 8.04 10.40 5.74 5.23 3.53 6.02 1975 3.41 3.65 4.10 4.43 6.37 8.75 ****** ****** ****** 4.52 3.81 3.21 ****** 1976 3.25 2.87 3.17 4.24 4.81 4.65 5.46 7.38 6.80 4.09 3.05 3.52 4.44 1977 1.93 2.77 3.34 4.26 5.33 5.27 7.29 6.63 5.64 4.11 3.52 3.15 4.44 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 2.41 2.97 3.19 4.03 4.79 6.44 6.12 7.22 5.46 5.74 3.81 3.01 4.60 1980 2.23 2.51 4.03 2.79 6.50 6.98 4.29 3.57 1.85 1.45 0.77 1.26 3.19 1981 1.80 3.42 3.60 5.94 4.75 4.72 4.68 5.08 3.59 3.26 2.25 ****** ****** 1982 2.85 2.17 3.58 6.13 8.04 7.56 6.83 7.51 6.68 6.48 3.75 ****** ****** 1983 1.58 1.67 3.13 5.19 ****** ****** 7.22 ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 2.32 ****** 3.06 5.36 7.71 9.36 9.16 ****** 6.35 5.12 4.70 3.59 ****** 1993 ****** 3.35 3.63 5.28 7.70 8.27 9.79 8.54 6.08 5.19 4.87 3.91 ****** 1994 3.88 3.56 4.51 6.11 7.38 8.74 10.08 8.94 7.04 6.77 5.47 3.16 6.30 1995 3.66 3.92 4.23 5.70 7.54 9.32 9.23 7.20 6.50 4.70 4.22 ****** ****** 1996 3.30 3.94 4.24 5.26 7.73 7.31 9.59 7.27 6.18 5.48 4.15 4.42 5.74 1997 3.17 2.51 3.49 5.37 7.46 9.07 9.28 8.17 6.55 5.82 5.32 3.95 5.85 1998 2.79 2.90 4.40 6.23 8.31 8.41 10.27 8.77 6.75 4.88 4.89 4.00 6.05 1999 3.82 3.60 4.02 5.40 5.98 7.11 9.03 8.24 6.25 5.01 4.28 3.61 5.53 2000 3.04 2.77 3.38 5.58 6.20 6.36 8.34 7.32 5.34 5.08 4.40 4.06 5.16 2001 3.23 3.46 ****** 5.25 6.07 6.04 9.17 6.79 5.21 4.62 4.14 4.29 ****** 2002 2.87 3.24 3.77 5.20 6.56 6.70 8.16 6.97 5.16 5.54 4.12 3.11 5.12 2003 3.45 3.46 4.00 5.44 6.56 8.13 9.06 8.01 6.20 5.43 4.59 3.96 5.69 MEAN 2.76 3.04 4.04 5.26 6.74 7.69 8.88 8.50 6.71 5.44 4.25 3.53 5.56 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** ****** 5.37 5.08 7.35 12.81 13.89 14.02 13.43 9.63 4.89 3.90 ****** 1965 2.88 3.88 6.25 6.58 9.58 13.63 13.69 13.86 11.03 7.14 5.32 4.67 8.21 1966 5.37 5.31 5.28 6.40 8.47 8.51 13.24 15.82 12.10 8.69 5.91 4.04 8.26 1967 2.56 2.00 4.19 6.21 9.74 11.12 15.31 17.31 12.48 7.80 4.11 2.81 7.97 1968 1.24 3.20 5.69 6.45 7.98 9.13 9.65 9.21 8.33 7.87 7.59 5.22 6.80 1969 4.01 4.38 5.92 7.36 9.24 9.66 12.97 12.83 10.18 9.53 6.08 5.14 8.11 1970 4.78 5.22 6.48 8.78 9.09 11.82 16.74 14.79 13.15 8.94 7.75 4.62 9.35 1971 2.44 4.16 5.72 7.74 8.83 11.01 13.68 12.41 6.63 5.10 5.21 4.15 7.26 1972 2.91 2.36 3.80 6.91 7.42 10.22 11.24 9.09 8.24 6.98 5.64 3.54 6.53 1973 2.87 4.23 4.32 5.06 7.46 9.06 11.81 11.51 7.76 6.21 4.33 3.99 6.55 1974 2.87 3.34 5.24 5.81 7.11 8.15 9.77 10.42 9.62 7.05 7.12 4.51 6.75 1975 4.47 4.12 5.54 6.01 8.24 8.76 ****** ****** ****** 4.54 3.79 3.87 ****** 1976 3.84 3.24 3.85 4.65 5.75 4.93 5.64 7.91 9.47 4.29 6.16 3.58 5.28 1977 2.63 4.30 4.94 6.51 9.03 11.30 13.86 14.39 11.30 5.96 5.14 3.80 7.76 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 3.08 4.12 5.08 6.60 8.54 11.73 14.68 16.30 12.90 9.98 6.45 4.33 8.65 1980 3.28 2.89 4.89 4.99 7.09 9.37 17.15 11.06 3.84 2.81 2.06 2.20 5.97 1981 1.99 5.06 4.78 8.31 7.00 7.62 6.89 7.98 7.57 4.65 3.30 ****** ****** 1982 3.82 3.37 4.15 6.82 8.41 7.33 6.49 8.57 8.50 6.93 4.22 ****** ****** 1983 1.99 2.13 3.93 6.73 ****** ****** 7.83 ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 2.74 ****** 3.72 5.95 8.19 10.67 11.87 ****** 8.72 6.82 6.12 3.92 ****** 1993 ****** 3.87 4.28 5.13 7.67 7.88 10.08 8.80 6.70 5.61 5.08 4.25 ****** 1994 4.10 3.84 4.67 6.91 7.20 10.32 11.31 10.13 7.77 7.90 5.74 3.63 6.96 1995 4.33 4.38 4.39 5.57 7.82 9.61 10.24 9.45 6.57 4.98 4.20 ****** ****** 1996 3.66 4.35 4.61 5.77 7.90 7.94 9.26 7.24 6.74 6.49 4.64 4.55 6.10 1997 3.26 3.10 3.87 4.98 7.38 9.25 9.99 10.19 6.70 6.58 5.56 4.14 6.25 1998 3.35 3.37 4.23 6.21 8.43 8.85 9.98 9.26 7.36 5.42 5.37 4.44 6.35 1999 4.03 3.80 3.72 4.94 5.64 6.73 8.95 8.63 6.81 5.37 4.41 4.63 5.64 2000 3.38 3.14 3.41 5.65 6.14 6.84 8.02 7.80 6.84 5.69 4.55 4.53 5.50 2001 3.67 4.26 ****** 5.06 5.85 5.99 8.55 7.80 6.04 5.09 4.56 4.61 ****** 2002 3.52 3.85 3.87 5.27 6.89 6.75 8.31 7.58 6.49 6.41 4.34 3.62 5.57 2003 3.82 3.69 4.09 5.65 6.95 8.90 9.14 9.35 6.91 5.64 4.76 4.27 6.10 MEAN 3.35 3.76 4.68 6.14 7.75 9.20 11.01 10.85 8.63 6.54 5.15 4.12 6.76 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** ****** 4.77 4.70 6.48 10.88 11.36 11.93 10.77 8.53 4.15 3.52 ****** 1965 2.62 3.42 5.52 5.64 8.78 10.77 11.17 11.20 8.77 6.00 5.38 4.41 6.97 1966 5.23 5.23 4.86 6.27 7.94 7.33 10.25 12.81 9.84 7.99 5.25 3.76 7.23 1967 2.58 1.87 3.88 5.26 8.64 9.23 13.33 14.13 10.46 6.52 3.87 2.58 6.86 1968 1.26 3.05 5.11 5.87 6.77 8.27 9.44 9.69 7.43 8.12 6.75 5.19 6.41 1969 3.84 4.24 6.11 7.26 9.56 8.85 13.11 12.92 8.85 8.38 6.25 5.09 7.87 1970 4.69 4.88 5.50 7.71 7.86 10.67 14.56 13.63 12.12 8.02 6.08 4.60 8.36 1971 2.46 3.87 5.67 7.02 9.40 10.70 12.86 10.47 5.36 4.32 5.75 4.31 6.85 1972 2.76 2.09 3.64 7.80 7.32 9.32 10.67 9.02 7.51 6.40 5.86 3.42 6.32 1973 2.63 4.09 4.56 5.78 7.58 9.01 10.18 11.90 8.34 5.70 4.21 3.82 6.48 1974 2.58 3.04 5.13 5.83 7.51 8.73 8.87 8.92 12.12 7.56 9.52 4.44 7.02 1975 4.40 4.22 5.66 5.12 7.89 7.40 ****** ****** ****** 4.29 3.70 3.82 ****** 1976 3.89 2.73 4.02 4.48 5.26 7.13 6.43 8.20 8.83 4.80 4.19 3.36 5.28 1977 2.02 3.76 4.32 5.77 7.36 9.81 12.87 10.94 8.54 4.79 3.65 3.18 6.42 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 2.46 3.47 3.78 5.21 7.48 10.10 14.16 14.15 10.91 9.34 5.11 3.32 7.46 1980 2.56 2.83 4.13 3.98 6.49 8.59 18.26 12.40 4.08 2.45 1.46 2.03 5.77 1981 1.97 4.52 4.23 7.77 6.89 7.72 6.64 8.38 5.90 4.09 2.79 ****** ****** 1982 3.65 2.99 3.99 6.68 8.20 7.40 6.23 8.13 7.59 7.22 4.18 ****** ****** 1983 1.54 1.83 3.57 5.75 ****** ****** 6.45 ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 2.74 ****** 3.54 6.30 8.09 9.83 11.32 ****** 7.70 6.37 5.79 3.98 ****** 1993 ****** 3.71 4.21 5.35 7.45 7.79 10.08 8.55 6.12 6.11 5.38 4.30 ****** 1994 4.21 4.24 5.01 6.94 7.90 10.16 11.36 10.06 8.69 8.35 5.82 3.60 7.20 1995 4.33 4.56 4.54 5.65 8.44 9.30 9.73 8.04 6.33 5.46 4.32 ****** ****** 1996 3.79 4.61 4.65 5.50 7.52 7.31 10.02 7.88 6.17 6.66 4.73 4.80 6.14 1997 3.23 3.11 3.95 5.34 7.40 8.54 9.29 9.17 7.08 6.47 5.75 4.14 6.12 1998 3.13 3.38 4.29 6.33 8.35 8.63 9.88 8.93 7.83 5.42 5.43 4.14 6.31 1999 4.23 3.63 3.72 4.92 5.36 5.91 8.36 8.03 6.36 5.36 4.44 4.17 5.37 2000 3.34 2.87 3.44 5.23 5.37 6.03 8.04 7.90 6.17 5.63 4.69 4.44 5.26 2001 3.47 4.02 ****** 4.92 5.47 5.37 8.01 6.28 6.01 4.73 4.37 4.57 ****** 2002 3.34 3.81 4.04 5.32 6.43 6.21 7.92 6.88 5.97 6.25 4.38 3.56 5.34 2003 3.82 3.79 4.11 5.63 6.51 8.27 8.82 8.69 6.48 5.35 4.97 4.32 5.90 MEAN 3.20 3.59 4.47 5.85 7.39 8.51 10.33 9.98 7.88 6.23 4.95 3.96 6.36 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. ABSOLUTE OF MINIMUM TEMPERATURE WITH DAY YEAR JAN. DAY FEB. DAY MAR. DAY APR. DAY MAY DAY JUNE DAY JULY DAY AUG. DAY SEP. DAY OCT. DAY NOV. DAY DEC. DAY ANNUAL 1964 ***** ** -13.0 1 -3.0 2 -3.0 17 3.0 1 4.0 4 10.0 6 10.0 15 10.0 9 3.0 27 -12.0 30 -11.0 27 ***** 1965 -15.0 23 -16.0 4 -4.0 13 -6.0 5 5.0 4 8.0 11 11.0 11 11.0 12 8.0 30 2.0 28 -3.0 29 -14.0 21 -16.0 1966 -3.0 13 -3.0 3 -3.0 23 0.0 1 3.0 19 5.0 1 6.0 6 13.0 27 8.0 27 4.0 28 -2.0 27 -4.0 20 -4.0 1967 -12.0 9 -17.0 16 -9.0 29 -6.0 1 2.0 9 3.0 5 9.0 3 10.0 21 5.0 25 0.0 29 -15.0 29 -17.0 23 -17.0 1968 -20.0 11 -30.0 2 -1.0 2 0.0 1 4.0 13 5.0 4 7.0 14 6.0 20 3.0 30 -2.0 27 -4.0 6 -8.0 29 -30.0 1969 -13.0 31 -14.5 3 0.0 24 1.0 3 5.5 22 5.0 11 10.0 1 9.0 29 1.0 12 1.0 25 -8.5 20 -8.5 10 -14.5 1970 -18.0 29 -11.0 3 -6.5 7 -1.5 21 2.4 9 9.1 26 10.1 18 10.0 29 4.5 18 0.5 9 -3.0 29 -10.0 31 -18.0 1971 -25.0 26 -18.0 1 -5.5 7 -3.5 19 4.0 3 7.5 3 12.0 7 12.0 1 4.0 20 0.0 10 -1.5 25 -5.0 24 -25.0 1972 -20.0 31 -25.2 13 -14.0 11 1.5 2 3.5 9 4.0 10 7.0 2 7.0 2 5.5 18 -2.0 31 -8.0 9 -21.5 24 -25.2 1973 -26.0 7 -13.5 4 -9.5 11 0.5 3 4.5 1 12.0 24 11.0 17 10.5 18 7.5 13 1.0 31 -5.5 5 -9.9 12 -26.0 1974 -15.0 27 -19.5 5 -12.0 6 1.0 5 7.0 1 13.0 1 16.5 30 13.5 25 9.5 30 2.5 25 1.2 17 -7.0 27 -19.5 1975 -6.0 15 -9.8 12 -9.0 17 0.0 5 2.0 12 7.0 14 ***** ** ***** ** ***** ** 2.0 13 1.0 16 -7.0 25 ***** 1976 -6.0 2 -5.0 5 -6.0 1 2.0 3 2.8 11 2.5 14 12.0 14 12.0 6 7.0 29 2.0 19 -5.0 20 -9.0 23 -9.0 1977 -23.0 10 -11.0 3 -3.5 5 0.4 17 4.0 16 8.0 1 10.5 4 9.0 31 9.0 19 -4.0 24 -2.0 14 -15.0 26 -23.0 1978 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1979 -19.0 12 -12.0 24 -10.0 5 -2.0 29 0.8 10 8.0 1 10.0 29 11.0 17 4.5 29 0.0 27 -5.0 23 -10.0 21 -19.0 1980 -17.0 15 -10.0 5 -5.0 3 -9.0 16 5.0 24 9.0 8 13.0 31 10.0 29 -10.0 28 -10.0 25 -13.0 28 -12.0 21 -17.0 1981 -11.0 9 -3.0 9 -2.0 2 -2.0 14 0.0 3 0.0 1 11.0 8 8.0 3 2.0 24 0.0 17 -8.0 23 ***** ** ***** 1982 -19.0 19 -19.0 8 -8.0 1 1.0 1 5.5 8 9.0 2 11.0 8 12.5 5 9.0 18 3.0 10 -8.0 16 ***** ** ***** 1983 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 9.0 6 ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1984 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1985 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1986 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1987 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1988 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1989 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1990 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1991 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1992 -20.0 10 ***** ** -10.0 1 0.0 3 3.5 5 9.0 5 11.5 12 ***** ** 3.5 30 1.0 8 -10.0 28 -7.0 27 ***** 1993 ***** ** -12.5 6 -6.5 23 0.4 24 2.4 4 7.5 23 11.6 2 12.0 25 9.0 10 -0.8 8 -8.4 15 -8.4 17 ***** 1994 -5.6 25 -6.6 4 -2.4 9 0.6 5 4.4 19 9.2 30 10.6 2 12.4 3 4.6 20 1.0 9 -1.0 9 -12.4 7 -12.4 1995 -6.8 23 -6.0 25 -2.4 1 0.2 6 4.6 13 10.0 25 13.0 27 12.0 24 6.8 27 -0.2 18 -5.2 13 ***** ** ***** 1996 -8.4 20 -7.4 6 -4.0 1 -2.0 4 7.4 7 8.2 6 10.4 15 12.0 23 8.4 25 0.0 29 -4.2 12 -5.2 19 -8.4 1997 -14.8 29 -16.4 2 -8.4 9 -4.4 13 4.0 2 8.4 7 12.8 9 10.4 17 5.0 15 3.0 29 -1.0 27 -6.0 29 -16.4 1998 -15.8 15 -13.0 16 -4.4 26 -1.8 1 4.0 4 10.2 4 13.4 7 13.0 6 7.2 28 2.0 26 -0.6 26 -6.0 23 -15.8 1999 -5.4 27 -5.0 2 -4.4 28 0.4 10 4.0 21 2.8 13 12.4 28 11.0 31 6.0 28 1.4 11 -6.0 30 -6.4 2 -6.4 2000 -11.0 17 -10.8 8 -8.8 16 2.4 11 2.2 13 7.4 14 13.8 23 11.0 5 9.4 25 1.0 4 -5.0 17 -5.0 30 -11.0 2001 -15.4 31 -14.2 1 ***** ** 3.0 16 5.0 17 8.0 1 11.4 19 11.4 13 9.0 30 3.0 27 -9.8 20 -7.0 22 ***** 2002 -11.4 25 -7.0 4 -5.0 1 3.4 1 5.0 1 7.0 2 12.6 2 10.0 31 11.0 10 4.5 26 -3.2 17 -12.0 15 -12.0 2003 -9.8 29 -7.4 14 -6.4 2 -2.0 1 2.0 1 7.4 6 12.4 30 12.4 15 8.0 23 6.0 7 -3.0 24 -7.6 24 -9.8 LOW. -26.0 7 -30.0 2 -14.0 11 -9.0 16 0.0 3 0.0 1 6.0 6 6.0 20 -10.0 28 -10.0 25 -15.0 29 -21.5 24 -30.0 YEAR 1973 1968 1972 1980 1981 1981 1966 1968 1980 1980 1967 1972 1968 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. ABSOLUTE OF MAXIMUM TEMPERATURE WITH DAY YEAR JAN. DAY FEB. DAY MAR. DAY APR. DAY MAY DAY JUNE DAY JULY DAY AUG. DAY SEP. DAY OCT. DAY NOV. DAY DEC. DAY ANNUAL 1964 ***** ** 7.0 12 22.0 30 25.0 2 32.0 31 38.0 5 39.0 15 37.0 1 38.0 16 32.0 3 18.0 14 12.0 6 ***** 1965 8.0 14 13.0 13 20.0 7 28.0 27 30.0 28 34.0 27 38.0 19 38.0 20 32.0 7 28.0 4 22.0 8 18.0 5 38.0 1966 16.0 6 16.0 25 19.0 8 25.0 30 30.0 22 38.0 9 37.0 25 37.0 1 35.0 2 25.0 2 19.0 3 12.0 5 38.0 1967 10.0 13 2.0 10 13.0 24 25.0 29 27.0 18 31.0 25 37.0 24 35.0 6 33.0 16 27.0 9 16.0 5 15.0 6 37.0 1968 8.0 3 13.0 24 16.0 28 22.0 28 25.0 21 34.0 28 38.0 20 38.3 1 33.0 2 30.0 6 20.0 14 16.0 1 38.3 1969 7.0 15 14.0 28 20.0 31 27.0 27 33.0 10 37.0 12 36.5 15 37.5 11 34.5 3 30.0 7 20.5 2 13.5 1 37.5 1970 11.5 4 15.5 28 19.5 16 29.5 13 29.0 30 33.8 3 39.0 10 37.0 14 32.0 1 29.5 4 24.5 2 15.0 5 39.0 1971 6.5 14 13.0 27 21.0 27 25.0 28 31.0 5 33.0 29 38.0 19 35.5 2 34.6 10 30.0 14 18.0 10 15.0 2 38.0 1972 1.5 5 2.6 17 11.5 31 25.0 29 27.0 31 33.0 28 39.0 12 37.0 2 33.0 5 31.0 2 18.5 2 8.0 1 39.0 1973 4.0 12 16.5 28 18.5 14 23.5 14 31.0 27 36.0 27 40.0 26 40.0 3 33.5 3 28.0 2 17.5 13 13.4 4 40.0 1974 3.0 11 6.0 26 15.0 23 23.0 15 31.5 26 36.5 20 37.5 1 37.5 13 32.0 1 29.0 5 30.0 15 13.0 2 37.5 1975 9.0 2 12.0 18 18.0 23 25.0 18 31.0 28 36.0 23 ***** ** ***** ** ***** ** 21.5 4 21.0 1 11.0 6 ***** 1976 8.0 18 10.0 8 8.5 31 15.5 26 26.0 27 28.0 28 31.0 23 33.0 23 35.0 5 27.0 8 18.0 4 16.0 15 35.0 1977 3.5 20 17.5 28 19.0 2 20.5 23 28.0 13 32.5 29 35.5 12 39.0 11 37.0 23 31.0 2 18.0 28 13.0 4 39.0 1978 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1979 10.0 1 17.0 14 18.0 17 27.0 4 28.0 27 33.0 30 42.0 7 39.0 18 37.0 13 32.0 10 20.0 11 10.0 6 42.0 1980 8.0 3 8.0 3 18.0 22 15.0 6 31.0 21 34.0 3 39.0 6 35.0 14 35.0 1 14.0 13 15.0 1 11.0 14 39.0 1981 11.0 4 28.0 19 25.0 8 20.0 17 25.0 14 22.0 9 40.0 17 35.0 5 33.0 1 28.0 5 18.0 1 ***** ** ***** 1982 15.0 4 5.5 1 14.5 30 25.0 30 27.0 18 37.0 23 38.5 13 37.0 21 35.0 7 24.5 17 18.5 5 ***** ** ***** 1983 3.2 1 1.0 7 19.4 28 22.0 8 ***** ** ***** ** 40.0 16 ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1984 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1985 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1986 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1987 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1988 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1989 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1990 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1991 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1992 6.0 19 ***** ** 16.0 30 24.0 12 28.0 29 32.5 29 38.5 30 ***** ** 31.5 9 26.5 4 19.5 6 11.5 11 ***** 1993 ***** ** 14.5 27 20.5 30 25.4 19 26.8 31 34.4 27 36.6 25 36.0 9 34.5 1 29.6 4 18.2 9 10.8 2 ***** 1994 12.8 3 14.6 27 19.4 31 27.4 21 30.0 26 33.8 11 35.6 30 37.4 18 32.8 12 26.6 8 19.4 2 9.8 17 37.4 1995 13.2 2 12.4 4 18.6 24 22.0 30 27.8 17 33.4 21 36.4 25 39.6 5 36.4 3 29.8 2 19.8 21 ***** ** ***** 1996 12.4 1 15.0 25 19.4 30 24.2 30 29.0 27 34.4 29 37.0 22 37.2 21 34.4 1 28.4 3 17.0 21 16.2 27 37.2 1997 14.0 6 11.8 19 15.0 31 28.2 26 29.4 28 34.0 22 36.0 29 39.0 26 37.6 2 28.0 28 17.0 17 16.2 8 39.0 1998 5.2 25 11.0 7 17.4 28 27.8 15 29.4 11 37.0 23 34.8 17 38.4 30 37.8 1 28.2 7 22.2 3 20.6 10 38.4 1999 10.2 30 15.0 2 18.4 8 26.2 28 34.6 30 35.2 24 37.0 31 38.0 12 35.4 3 29.8 4 19.8 18 16.0 29 38.0 2000 14.4 3 14.0 24 19.0 31 26.0 14 30.4 31 35.4 29 38.4 21 38.0 3 33.6 6 27.0 10 17.0 12 12.6 1 38.4 2001 12.0 14 16.2 28 ***** ** 26.6 2 31.6 28 38.0 22 35.6 31 39.4 2 34.4 4 29.8 5 23.0 6 15.0 29 ***** 2002 12.2 2 14.0 22 22.0 26 21.4 28 30.4 28 35.0 27 37.2 23 36.0 5 33.4 4 31.2 9 21.4 9 11.4 7 37.2 2003 12.6 8 11.6 8 15.0 17 23.4 5 28.0 16 32.6 24 36.6 13 39.6 12 36.0 5 29.8 9 18.0 2 13.8 18 39.6 HIG. 16.0 6 28.0 19 25.0 8 29.5 13 34.6 30 38.0 5 42.0 7 40.0 3 38.0 16 32.0 3 30.0 15 20.6 10 42.0 YEAR 1966 1981 1981 1970 1999 1964 1979 1973 1964 1964 1974 1998 1979 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. 24 HOUR MAXIMUM PRECIPITATION. YEAR JAN. DAY FEB. DAY MAR. DAY APR. DAY MAY DAY JUNE DAY JULY DAY AUG. DAY SEP. DAY OCT. DAY NOV. DAY DEC. DAY ANNUAL 1964 ***** ** 127.0 3 20.0 19 26.0 18 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 13.0 20 11.0 13 ***** 1965 23.0 9 4.0 3 22.0 2 20.0 28 0.0 ** 6.5 5 0.0 ** 0.0 ** 7.0 29 24.0 22 0.0 ** 6.0 17 24.0 1966 15.0 27 15.0 28 16.0 19 12.0 22 9.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 35.0 22 0.0 ** 10.0 28 35.0 1967 30.0 15 15.0 23 6.0 22 10.0 17 20.0 4 0.0 ** 0.0 ** 0.0 ** 4.0 24 5.0 9 7.0 11 5.0 22 30.0 1968 10.0 15 7.0 2 10.0 8 4.6 22 17.0 10 14.0 1 0.0 ** 0.0 ** 0.0 ** 2.0 31 19.5 17 32.0 27 32.0 1969 27.0 19 11.5 28 35.0 8 51.0 2 11.0 8 0.0 ** 0.0 ** 3.0 25 0.0 ** 13.3 18 17.6 9 30.0 13 51.0 1970 20.0 26 2.0 23 24.5 3 20.6 19 6.2 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.2 10 17.0 11 24.5 1971 10.1 15 3.0 7 17.3 28 15.4 23 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 26 5.0 26 5.0 26 17.3 1972 15.4 22 20.2 8 15.0 25 24.0 11 19.0 1 17.0 11 0.0 ** 0.0 ** 0.0 ** 5.0 7 31.0 4 25.0 13 31.0 1973 10.0 31 18.0 15 9.0 8 16.0 8 48.0 10 0.4 12 0.0 ** 0.0 ** 0.0 ** 5.0 31 41.0 21 6.7 17 48.0 1974 8.2 6 17.5 11 16.5 19 13.8 19 2.8 3 0.0 ** 0.5 16 0.0 ** 15.0 12 0.0 ** 12.0 30 8.0 5 17.5 1975 3.2 18 31.0 21 14.0 1 26.0 20 10.0 7 2.0 4 ***** ** ***** ** ***** ** 4.0 15 7.0 28 18.0 23 ***** 1976 24.0 19 30.0 10 25.0 6 30.0 30 26.0 13 0.0 ** 0.0 ** 0.0 ** 0.0 ** 15.0 31 7.0 25 11.0 22 30.0 1977 24.2 4 13.0 5 53.0 2 29.5 16 25.5 17 8.5 6 0.0 ** 1.0 6 2.0 3 14.5 17 23.0 12 22.0 13 53.0 1978 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1979 35.0 9 23.0 8 26.0 27 26.0 27 34.0 29 19.0 18 0.0 ** 0.0 ** 0.0 ** 16.5 6 4.0 15 19.0 28 35.0 1980 19.0 16 36.0 25 29.0 21 47.0 11 24.0 10 13.0 27 0.0 ** 0.0 ** 16.0 13 23.0 26 14.0 8 17.5 12 47.0 1981 37.6 18 22.0 21 37.0 26 43.0 24 51.0 22 42.0 17 0.0 ** 0.0 ** 0.0 ** 0.0 ** 30.0 29 ***** ** ***** 1982 40.0 28 6.0 14 11.0 15 32.0 14 22.0 1 12.0 28 0.0 ** 0.0 ** 2.0 2 32.0 3 14.0 9 ***** ** ***** 1983 15.0 2 13.0 19 17.0 14 22.0 23 ***** ** ***** ** 0.0 ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1984 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1985 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1986 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1987 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1988 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1989 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1990 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1991 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1992 14.1 3 ***** ** 5.0 11 12.0 18 19.0 12 16.0 25 0.0 ** ***** ** 0.0 ** 0.0 ** 26.9 7 19.0 3 ***** 1993 ***** ** 24.9 2 62.0 8 41.7 8 37.6 13 0.0 ** 0.0 ** 2.6 7 0.0 ** 23.0 28 41.4 1 24.5 8 ***** 1994 21.0 4 9.0 28 10.0 12 21.5 1 10.5 13 7.0 28 0.0 ** 0.0 ** 12.4 9 8.5 19 35.0 6 16.0 3 35.0 1995 13.0 16 27.5 5 8.6 17 33.0 11 9.0 4 16.5 2 0.0 ** 0.0 ** 3.6 29 0.0 ** 21.4 3 ***** ** ***** 1996 24.6 6 25.0 2 11.0 7 28.0 12 10.8 11 0.0 ** 0.0 ** 3.2 29 1.0 3 13.0 16 8.2 6 11.6 28 28.0 1997 23.8 16 19.6 27 21.4 4 10.0 9 24.4 22 1.6 6 5.5 5 0.0 ** 0.0 ** 4.0 19 19.6 3 9.0 1 24.4 1998 13.0 13 10.8 7 40.0 17 22.6 28 6.0 12 1.4 3 2.0 29 0.0 ** 0.0 ** 0.0 ** 15.5 11 15.5 30 40.0 1999 32.0 9 7.0 20 6.0 25 12.0 1 0.0 ** 0.0 ** 3.5 16 5.4 17 0.0 ** 9.0 31 0.0 ** 0.0 ** 32.0 2000 10.5 15 6.4 12 21.0 23 16.4 29 5.8 9 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.6 25 8.0 19 17.2 21 21.0 2001 15.0 24 9.0 10 ***** ** 6.0 7 6.6 3 0.0 ** 2.0 21 0.0 ** 0.0 ** 2.0 27 20.0 18 15.1 4 ***** 2002 13.5 23 10.0 12 30.0 18 19.4 18 11.5 4 0.0 ** 0.5 26 0.0 ** 0.0 ** 2.0 5 8.0 1 24.8 21 30.0 2003 6.5 16 9.0 4 26.4 20 30.4 16 4.0 31 16.2 15 0.0 ** 0.0 ** 0.0 ** 13.5 29 0.0 ** 19.5 6 30.4 HIG. 40.0 28 127.0 3 62.0 8 51.0 2 51.0 22 42.0 17 5.5 5 5.4 17 16.0 13 35.0 22 41.4 1 32.0 27 127.0 YEAR 1982 1964 1993 1969 1981 1981 1997 1999 1980 1966 1993 1968 1964 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1964 ****** 222.0 78.0 160.0 0.0 0.0 0.0 0.0 0.0 0.0 23.0 14.0 ****** 60.4 32.2 0.0 7.4 1965 41.0 4.0 32.0 49.0 0.0 6.5 0.0 0.0 7.0 62.0 0.0 6.0 207.5 37.1 26.7 3.4 32.8 1966 38.0 57.0 45.2 65.0 9.0 0.0 0.0 0.0 0.0 96.0 0.0 21.0 331.2 42.3 22.3 0.0 35.3 1967 77.0 74.0 10.0 30.5 52.0 0.0 0.0 0.0 4.0 17.0 19.2 12.0 295.7 54.4 27.9 1.4 16.3 1968 26.0 16.0 32.0 14.2 57.0 14.0 0.0 0.0 0.0 4.5 88.5 84.3 336.5 22.0 25.3 0.0 52.7 1969 82.5 29.5 171.0 179.2 26.2 0.0 0.0 3.0 0.0 44.8 18.1 75.9 630.2 44.9 32.6 0.5 22.0 1970 34.0 2.0 54.7 25.7 6.2 0.0 0.0 0.0 0.0 0.0 11.3 39.5 173.4 52.3 18.4 0.0 29.3 1971 19.4 6.0 41.0 77.3 0.0 0.0 0.0 0.0 0.0 6.0 13.5 16.5 179.7 37.0 43.0 0.0 20.0 1972 17.6 69.9 56.3 54.0 84.0 33.0 0.0 0.0 0.0 5.0 95.0 60.5 475.3 30.3 36.0 0.0 33.8 1973 21.5 28.3 31.5 49.2 52.5 0.4 0.0 0.0 0.0 9.0 92.4 16.3 301.1 27.0 33.9 0.0 39.1 1974 22.2 88.2 79.2 50.9 2.8 0.0 0.5 0.0 20.0 0.0 21.0 27.5 312.3 60.7 17.2 6.6 15.5 1975 10.2 89.0 51.0 48.0 44.0 2.0 ****** ****** ****** 4.0 16.0 59.0 ****** 46.5 29.1 ***** 24.4 1976 69.0 82.0 47.0 106.0 111.0 0.0 0.0 0.0 0.0 25.0 18.1 64.0 522.1 37.9 41.6 0.0 20.5 1977 149.3 53.4 226.9 106.0 138.5 11.5 0.0 2.0 2.0 48.5 36.0 83.9 858.0 50.1 29.8 0.5 19.6 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1979 137.8 73.2 111.5 171.0 149.5 57.5 0.0 0.0 0.0 55.5 13.0 65.8 834.8 38.6 45.3 0.0 16.1 1980 174.1 63.6 173.0 287.5 107.0 13.0 0.0 0.0 83.0 98.0 34.0 27.7 1060.9 38.7 38.4 7.8 15.1 1981 201.6 42.0 134.0 121.6 245.0 224.0 0.0 0.0 0.0 0.0 57.0 ****** ****** 36.8 57.6 0.0 5.6 1982 68.0 27.0 40.0 214.0 209.0 21.0 0.0 0.0 4.0 213.0 69.0 ****** ****** 15.6 51.3 0.5 32.6 1983 86.2 31.0 106.0 83.0 ****** ****** 0.0 ****** ****** ****** ****** ****** ****** 72.9 27.1 0.0 ***** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1992 28.8 ****** 16.0 54.0 101.5 24.0 0.0 ****** 0.0 0.0 127.3 41.0 ****** 11.4 45.7 0.0 42.9 1993 ****** 60.4 100.9 121.0 90.1 0.0 0.0 3.1 0.0 27.7 134.6 62.4 ****** 26.9 35.2 0.5 37.4 1994 72.4 22.0 39.0 79.9 21.0 7.0 0.0 0.0 12.4 32.0 123.9 35.2 444.8 30.0 24.3 2.8 43.0 1995 32.0 45.9 21.6 87.5 23.0 31.3 0.0 0.0 5.8 0.0 28.6 ****** ****** 36.1 51.4 2.1 10.4 1996 66.0 52.6 49.6 77.3 33.4 0.0 0.0 3.2 1.0 19.8 14.8 26.0 343.7 48.9 32.2 1.2 17.6 1997 68.4 49.2 79.6 32.0 71.8 2.6 5.5 0.0 0.0 6.8 63.2 15.4 394.5 50.0 27.0 1.4 21.6 1998 51.4 25.2 76.6 53.1 13.5 1.4 2.0 0.0 0.0 0.0 17.5 23.0 263.7 58.1 25.8 0.8 15.4 1999 44.6 16.0 10.2 20.2 0.0 0.0 6.5 6.4 0.0 11.4 0.0 0.0 115.3 61.4 17.5 11.2 9.9 2000 28.8 7.0 49.2 45.3 9.8 0.0 0.0 0.0 0.0 11.6 14.0 50.7 216.4 39.3 25.5 0.0 35.3 2001 30.9 24.9 ****** 16.4 13.0 0.0 5.2 0.0 0.0 2.0 38.9 57.7 ****** 29.5 15.6 2.8 52.2 2002 40.4 23.0 52.1 53.9 43.5 0.0 0.5 0.0 0.0 5.5 25.6 96.9 341.4 33.8 28.5 0.1 37.5 2003 11.1 46.4 108.0 97.9 16.5 17.6 0.0 0.0 0.0 20.9 0.0 56.5 374.9 44.1 35.2 0.0 20.6 MEAN 60.4 47.7 70.8 84.9 57.7 15.6 0.7 0.6 4.8 27.5 40.5 42.2 453.4 39.5 34.9 1.3 24.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 4 8 8 0 0 0 0 0 0 3 2 *** 1965 4 1 3 5 0 1 0 0 1 7 0 1 23 1966 6 6 6 11 1 0 0 0 0 5 0 3 38 1967 5 10 4 4 4 0 0 0 1 5 9 3 45 1968 4 3 6 5 9 1 0 0 0 3 12 10 53 1969 9 4 11 10 5 0 0 1 0 5 2 5 52 1970 4 1 3 2 1 0 0 0 0 0 4 5 20 1971 2 2 6 14 0 0 0 0 0 1 4 5 34 1972 3 7 13 5 13 3 0 0 0 1 6 5 56 1973 4 3 7 8 3 1 0 0 0 2 4 4 36 1974 8 11 13 9 1 0 1 0 2 0 2 7 54 1975 4 8 8 6 8 1 *** *** *** 1 3 8 *** 1976 8 7 6 12 10 0 0 0 0 2 7 8 60 1977 18 8 21 17 14 2 0 2 1 9 3 14 109 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 15 6 8 18 10 4 0 0 0 6 6 12 85 1980 23 6 16 18 8 1 0 0 11 8 4 4 99 1981 17 3 8 7 9 10 0 0 0 0 4 *** *** 1982 5 6 6 11 18 3 0 0 2 15 9 *** *** 1983 12 4 13 9 *** *** 0 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 6 *** 7 7 14 4 0 *** 0 0 10 5 *** 1993 *** 6 8 11 14 0 0 2 0 3 10 6 *** 1994 9 5 9 9 4 1 0 0 1 7 10 6 61 1995 3 5 5 9 5 5 0 0 2 0 4 *** *** 1996 9 6 8 9 5 0 0 1 1 4 3 6 52 1997 5 8 10 9 8 2 1 0 0 3 6 6 58 1998 12 5 7 8 6 1 1 0 0 0 3 5 48 1999 7 4 3 3 0 0 2 2 0 2 0 0 23 2000 8 2 4 6 3 0 0 0 0 4 4 7 38 2001 5 4 *** 4 2 0 3 0 0 1 5 9 *** 2002 5 3 6 8 8 0 1 0 0 4 5 11 51 2003 3 11 10 9 9 2 0 0 0 5 0 9 58 MEAN 8 5 8 9 6 1 0 0 1 3 5 6 52 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. NO. OF DAYS PRECIPITATION EQUAL OR MORE THAN 1 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 4 8 8 0 0 0 0 0 0 3 2 *** 1965 4 1 3 5 0 1 0 0 1 7 0 1 23 1966 6 6 6 11 1 0 0 0 0 5 0 3 38 1967 5 10 4 4 4 0 0 0 1 5 9 3 45 1968 4 3 6 5 9 1 0 0 0 3 12 9 52 1969 9 4 11 10 5 0 0 1 0 5 1 5 51 1970 4 1 3 2 1 0 0 0 0 0 3 5 19 1971 2 2 6 14 0 0 0 0 0 1 4 5 34 1972 2 7 11 5 13 3 0 0 0 1 6 5 53 1973 4 3 6 8 3 0 0 0 0 2 4 4 34 1974 7 11 12 8 1 0 0 0 2 0 2 7 50 1975 4 8 8 6 8 1 *** *** *** 1 3 8 *** 1976 8 7 6 12 10 0 0 0 0 2 6 8 59 1977 17 8 21 17 14 2 0 2 1 9 3 14 108 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 15 6 8 18 10 4 0 0 0 6 6 12 85 1980 19 5 16 18 8 1 0 0 11 8 4 4 94 1981 17 3 8 6 9 10 0 0 0 0 4 *** *** 1982 5 6 6 11 18 3 0 0 2 15 9 *** *** 1983 11 4 13 9 *** *** 0 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 5 *** 5 7 13 4 0 *** 0 0 10 5 *** 1993 *** 6 8 11 13 0 0 1 0 3 9 6 *** 1994 9 5 9 9 4 1 0 0 1 7 10 6 61 1995 3 5 5 9 5 5 0 0 2 0 4 *** *** 1996 9 6 8 8 5 0 0 1 1 4 3 5 50 1997 5 7 10 7 8 2 1 0 0 3 6 5 54 1998 11 5 7 8 3 1 1 0 0 0 3 5 44 1999 7 4 3 3 0 0 2 2 0 2 0 0 23 2000 8 1 4 6 3 0 0 0 0 4 4 7 37 2001 5 4 *** 4 2 0 3 0 0 1 5 9 *** 2002 5 3 6 7 7 0 0 0 0 3 5 10 46 2003 3 10 10 9 9 2 0 0 0 5 0 9 57 MEAN 7 5 8 9 6 1 0 0 1 3 5 6 51 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. NO. OF DAYS PRECIPITATION EQUAL OR MORE THAN 10 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 4 4 8 0 0 0 0 0 0 1 1 *** 1965 2 0 1 2 0 0 0 0 0 2 0 0 7 1966 1 2 2 1 0 0 0 0 0 5 0 1 12 1967 3 3 0 2 3 0 0 0 0 0 0 0 11 1968 1 0 1 0 2 1 0 0 0 0 5 2 12 1969 3 1 8 6 1 0 0 0 0 3 1 4 27 1970 1 0 3 1 0 0 0 0 0 0 0 1 6 1971 1 0 2 2 0 0 0 0 0 0 0 0 5 1972 1 2 1 2 2 2 0 0 0 0 5 3 18 1973 1 1 0 2 1 0 0 0 0 0 4 0 9 1974 0 5 5 2 0 0 0 0 1 0 1 0 14 1975 0 4 2 1 1 0 *** *** *** 0 0 3 *** 1976 4 3 2 5 4 0 0 0 0 2 0 5 25 1977 6 2 7 1 5 0 0 0 0 2 2 2 27 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 4 4 5 7 5 3 0 0 0 2 0 1 31 1980 7 2 7 12 5 1 0 0 5 4 1 1 45 1981 9 2 6 4 8 8 0 0 0 0 3 *** *** 1982 2 0 1 10 13 1 0 0 0 11 3 *** *** 1983 4 2 4 3 *** *** 0 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 1 *** 0 3 3 1 0 *** 0 0 5 2 *** 1993 *** 2 3 4 2 0 0 0 0 1 5 3 *** 1994 2 0 1 4 1 0 0 0 1 0 4 1 14 1995 2 1 0 3 0 1 0 0 0 0 1 *** *** 1996 1 1 1 4 3 0 0 0 0 1 0 1 12 1997 4 2 3 1 2 0 0 0 0 0 2 0 14 1998 2 1 3 1 0 0 0 0 0 0 1 1 9 1999 1 0 0 1 0 0 0 0 0 0 0 0 2 2000 1 0 2 2 0 0 0 0 0 0 0 2 7 2001 1 0 *** 0 0 0 0 0 0 0 1 3 *** 2002 2 1 2 2 2 0 0 0 0 0 0 4 13 2003 0 0 5 4 0 1 0 0 0 1 0 2 13 MEAN 2 2 3 3 2 1 0 0 0 1 2 2 18 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** *** 71 57 52 54 60 57 58 52 60 65 *** 1965 55 67 71 65 66 63 61 63 58 58 62 69 63 1966 71 77 75 73 70 46 53 62 63 57 60 71 65 1967 53 45 69 63 58 55 60 66 69 60 63 53 60 1968 40 45 66 61 63 56 56 54 56 70 88 83 62 1969 89 89 84 86 76 59 60 67 72 79 79 81 77 1970 74 83 77 75 69 68 70 68 70 75 76 83 74 1971 78 86 80 82 71 67 61 70 46 68 84 83 73 1972 88 87 89 76 73 63 48 57 56 60 84 87 72 1973 85 88 77 67 65 54 56 53 60 68 73 83 69 1974 85 84 84 72 55 57 58 53 83 68 63 79 70 1975 83 80 77 56 60 61 *** *** *** 41 43 68 *** 1976 75 68 67 68 58 48 39 44 41 46 67 55 56 1977 84 76 62 63 62 47 52 49 51 60 73 79 63 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 75 71 72 60 60 62 49 57 53 69 78 84 66 1980 83 74 72 67 71 59 28 28 33 37 24 40 51 1981 43 43 46 77 73 76 36 39 38 51 49 *** *** 1982 85 87 83 75 77 59 44 60 63 84 91 *** *** 1983 81 81 79 82 *** *** 50 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 78 *** 76 76 85 73 61 *** 59 63 79 79 *** 1993 *** 87 80 69 78 63 66 58 54 65 84 91 *** 1994 86 79 77 74 72 63 65 61 64 82 79 75 73 1995 81 87 76 75 71 72 57 48 55 64 71 *** *** 1996 81 81 82 72 69 54 58 49 50 65 76 78 68 1997 75 75 78 74 72 65 59 55 60 64 88 78 70 1998 85 80 78 80 79 58 64 59 58 61 66 75 70 1999 90 76 75 73 53 46 59 50 53 53 76 84 66 2000 75 73 68 63 56 46 50 47 46 67 81 86 63 2001 83 78 *** 62 58 42 60 42 41 52 69 76 *** 2002 78 71 66 64 68 50 50 49 42 56 71 79 62 2003 82 78 76 67 66 62 58 54 56 54 77 83 68 MEAN 77 76 74 70 67 58 55 54 55 62 71 76 66 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** *** 59 49 40 55 50 46 49 54 53 67 *** 1965 61 63 61 54 49 51 43 44 42 47 51 60 52 1966 63 71 55 54 47 30 43 48 50 57 56 62 53 1967 59 57 66 60 57 53 54 61 59 54 58 57 58 1968 39 49 64 60 60 50 34 33 32 43 70 76 51 1969 83 80 66 67 51 34 47 42 45 59 69 66 59 1970 72 66 65 55 48 41 53 46 48 48 62 73 56 1971 75 79 56 61 41 44 43 40 24 28 55 57 50 1972 88 86 78 53 50 40 36 32 34 33 66 78 56 1973 88 77 50 41 40 34 36 30 30 33 53 74 49 1974 76 83 72 48 31 28 33 35 40 37 43 71 50 1975 76 67 67 42 44 33 *** *** *** 33 36 69 *** 1976 79 76 78 64 55 36 22 27 37 29 65 48 51 1977 84 76 58 59 58 44 50 46 43 46 53 74 58 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 71 65 62 52 56 53 45 54 49 61 64 77 59 1980 78 59 56 67 37 36 46 38 30 39 30 37 46 1981 33 40 42 75 57 63 29 30 29 32 39 *** *** 1982 78 88 62 49 49 30 20 31 33 54 69 *** *** 1983 72 70 57 53 *** *** 25 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 68 *** 60 51 63 48 42 *** 40 40 65 61 *** 1993 *** 78 61 46 50 35 37 33 28 39 66 82 *** 1994 71 59 50 50 41 45 43 37 36 50 56 67 50 1995 63 63 44 45 41 43 37 31 29 34 42 *** *** 1996 69 64 59 50 44 35 31 23 26 42 46 52 45 1997 57 63 63 41 42 37 36 33 31 38 59 55 46 1998 78 66 49 46 45 33 35 30 30 32 41 50 45 1999 68 49 41 37 29 25 32 28 29 32 48 64 40 2000 61 51 40 38 31 27 24 25 28 41 51 68 40 2001 66 61 *** 33 31 23 30 25 23 31 49 62 *** 2002 66 52 37 44 42 27 29 26 24 33 44 72 41 2003 65 59 54 46 38 38 32 31 31 29 52 70 45 MEAN 69 66 58 51 46 39 37 36 35 41 54 65 50 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** *** 57 50 43 54 48 46 47 55 50 66 *** 1965 61 63 61 54 52 46 41 41 39 47 59 66 53 1966 67 77 62 60 51 28 37 44 49 59 56 66 55 1967 64 57 67 58 59 52 53 59 59 54 61 58 58 1968 43 57 65 64 57 50 35 36 34 55 75 81 54 1969 90 85 72 76 59 39 57 50 44 56 74 70 64 1970 74 72 68 64 52 50 65 53 59 54 62 74 62 1971 77 83 67 69 56 49 51 43 27 35 69 73 58 1972 91 89 86 71 64 48 43 38 36 38 74 83 63 1973 86 83 62 57 50 39 35 44 39 39 65 79 57 1974 82 88 81 60 39 35 36 36 57 43 55 77 57 1975 81 71 74 42 47 33 *** *** *** 37 40 71 *** 1976 80 69 78 68 50 52 29 35 39 35 55 48 53 1977 81 68 54 52 52 38 45 36 38 42 51 72 52 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 71 59 57 47 50 45 41 44 43 57 63 74 54 1980 77 62 51 62 36 32 51 43 32 39 23 37 45 1981 37 40 42 74 59 65 25 30 28 32 38 *** *** 1982 79 89 67 56 56 33 21 31 35 70 77 *** *** 1983 73 72 60 50 *** *** 18 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 79 *** 61 61 64 45 40 *** 39 48 74 76 *** 1993 *** 83 66 52 55 34 37 33 29 52 80 89 *** 1994 80 75 61 52 48 45 41 37 48 66 71 77 58 1995 76 76 53 51 51 45 35 27 32 47 55 *** *** 1996 81 74 66 53 44 32 35 27 28 54 62 67 52 1997 64 70 72 49 46 35 33 31 36 46 73 67 52 1998 83 73 55 52 48 33 35 30 37 41 53 58 50 1999 80 56 46 40 29 22 30 26 31 40 60 72 44 2000 69 55 45 37 28 23 25 26 28 48 64 78 44 2001 72 68 *** 35 31 20 27 20 26 35 56 69 *** 2002 74 62 45 49 42 26 27 24 25 42 53 78 46 2003 71 68 57 50 41 36 29 29 31 34 65 79 49 MEAN 74 70 62 55 49 39 38 36 38 47 60 71 53 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. NO. OF DAYS MINIMUM TEMPERATURE EQUAL OR LESS THAN -4 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 17 0 0 0 0 0 0 0 0 3 13 *** 1965 26 11 1 1 0 0 0 0 0 0 0 11 50 1966 0 0 0 0 0 0 0 0 0 0 0 1 1 1967 23 27 7 1 0 0 0 0 0 0 8 24 90 1968 29 15 0 0 0 0 0 0 0 0 3 13 60 1969 18 18 0 0 0 0 0 0 0 0 18 14 68 1970 24 17 4 0 0 0 0 0 0 0 0 16 61 1971 31 25 8 0 0 0 0 0 0 0 0 6 70 1972 31 29 26 0 0 0 0 0 0 0 14 31 131 1973 31 15 19 0 0 0 0 0 0 0 1 3 69 1974 27 21 5 0 0 0 0 0 0 0 0 7 60 1975 12 6 1 0 0 0 *** *** *** 0 0 6 *** 1976 2 6 6 0 0 0 0 0 0 0 3 10 27 1977 29 14 0 0 0 0 0 0 0 1 0 11 55 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 19 8 7 0 0 0 0 0 0 0 5 14 53 1980 27 14 4 9 0 0 0 0 7 12 24 13 110 1981 5 0 0 0 0 0 0 0 0 0 6 *** *** 1982 11 24 13 0 0 0 0 0 0 0 5 *** *** 1983 *** *** *** *** *** *** 0 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 21 *** 14 0 0 0 0 *** 0 0 4 7 *** 1993 *** 13 4 0 0 0 0 0 0 0 6 4 *** 1994 2 6 0 0 0 0 0 0 0 0 0 12 20 1995 5 2 0 0 0 0 0 0 0 0 4 *** *** 1996 13 3 2 0 0 0 0 0 0 0 1 1 20 1997 13 15 7 1 0 0 0 0 0 0 0 5 41 1998 21 15 1 0 0 0 0 0 0 0 0 4 41 1999 8 4 2 0 0 0 0 0 0 0 3 10 27 2000 11 13 6 0 0 0 0 0 0 0 1 3 34 2001 14 2 *** 0 0 0 0 0 0 0 3 4 *** 2002 20 13 2 0 0 0 0 0 0 0 0 13 48 2003 10 6 3 0 0 0 0 0 0 0 0 9 28 MEAN 17 12 5 0 0 0 0 0 0 0 4 10 48 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. NO. OF DAYS MINIMUM TEMPERATURE EQUAL OR MORE THAN 21 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1965 0 0 0 0 0 0 0 0 0 0 0 0 0 1966 0 0 0 0 0 0 0 0 0 0 0 0 0 1967 0 0 0 0 0 0 0 0 0 0 0 0 0 1968 0 0 0 0 0 0 0 0 0 0 0 0 0 1969 0 0 0 0 0 0 0 0 0 0 0 0 0 1970 0 0 0 0 0 0 0 0 0 0 0 0 0 1971 0 0 0 0 0 0 0 0 0 0 0 0 0 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 0 0 0 0 0 0 1 0 0 0 0 0 1 1975 0 0 0 0 0 0 *** *** *** 0 0 0 *** 1976 0 0 0 0 0 0 0 7 11 0 0 0 18 1977 0 0 0 0 0 0 0 2 0 0 0 0 2 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 0 0 0 0 3 0 0 0 0 0 3 1981 0 0 0 0 0 0 2 0 0 0 0 *** *** 1982 0 0 0 0 0 0 0 0 0 0 0 *** *** 1983 *** *** *** *** *** *** 0 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 0 *** 0 0 0 0 0 *** 0 0 0 0 *** 1993 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 2 1 0 0 0 *** *** 1996 0 0 0 0 0 0 1 0 0 0 0 0 1 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 2 0 0 0 0 2 1999 0 0 0 0 0 0 0 4 0 0 0 0 4 2000 0 0 0 0 0 0 2 3 0 0 0 0 5 2001 0 0 *** 0 0 0 2 1 0 0 0 0 *** 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 1 2 0 0 0 0 3 MEAN 0 0 0 0 0 0 0 1 0 0 0 0 1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR LESS THAN 0 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 8 0 0 0 0 0 0 0 0 2 2 *** 1965 9 3 0 0 0 0 0 0 0 0 0 0 12 1966 0 0 0 0 0 0 0 0 0 0 0 0 0 1967 17 23 1 0 0 0 0 0 0 0 4 14 59 1968 27 11 0 0 0 0 0 0 0 0 0 0 38 1969 6 5 0 0 0 0 0 0 0 0 0 0 11 1970 0 0 0 0 0 0 0 0 0 0 0 0 0 1971 29 8 0 0 0 0 0 0 0 0 0 0 37 1972 28 24 4 0 0 0 0 0 0 0 0 10 66 1973 23 4 0 0 0 0 0 0 0 0 0 2 29 1974 16 12 0 0 0 0 0 0 0 0 0 0 28 1975 0 1 0 0 0 0 *** *** *** 0 0 3 *** 1976 7 11 7 0 0 0 0 0 0 0 0 12 37 1977 23 3 0 0 0 0 0 0 0 0 0 8 34 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 15 0 1 0 0 0 0 0 0 0 0 3 19 1980 18 4 0 0 0 0 0 0 0 1 0 3 26 1981 1 0 0 0 0 0 0 0 0 0 0 *** *** 1982 9 12 2 0 0 0 0 0 0 0 2 *** *** 1983 28 26 2 0 *** *** 0 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 14 *** 3 0 0 0 0 *** 0 0 0 2 *** 1993 *** 8 0 0 0 0 0 0 0 0 1 4 *** 1994 3 0 0 0 0 0 0 0 0 0 0 5 8 1995 0 0 0 0 0 0 0 0 0 0 0 *** *** 1996 9 3 0 0 0 0 0 0 0 0 0 0 12 1997 7 8 2 0 0 0 0 0 0 0 0 0 17 1998 12 7 0 0 0 0 0 0 0 0 0 0 19 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 4 1 0 0 0 0 0 0 0 0 0 0 5 2001 7 0 *** 0 0 0 0 0 0 0 0 0 *** 2002 8 0 0 0 0 0 0 0 0 0 0 13 21 2003 3 0 0 0 0 0 0 0 0 0 0 4 7 MEAN 11 6 1 0 0 0 0 0 0 0 0 3 21 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR MORE THAN 30 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 0 0 0 3 28 31 31 29 7 0 0 *** 1965 0 0 0 0 1 18 31 31 17 0 0 0 98 1966 0 0 0 0 2 25 29 31 16 0 0 0 103 1967 0 0 0 0 0 7 28 30 5 0 0 0 70 1968 0 0 0 0 0 6 25 26 18 5 0 0 80 1969 0 0 0 0 2 22 25 30 8 2 0 0 89 1970 0 0 0 0 0 24 29 30 16 0 0 0 99 1971 0 0 0 0 2 17 30 29 21 2 0 0 101 1972 0 0 0 0 0 14 31 27 18 4 0 0 94 1973 0 0 0 0 1 14 30 31 17 0 0 0 93 1974 0 0 0 0 6 24 29 22 6 0 1 0 88 1975 0 0 0 0 3 26 *** *** *** 0 0 0 *** 1976 0 0 0 0 0 0 8 27 15 0 0 0 50 1977 0 0 0 0 0 14 23 26 14 3 0 0 80 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 0 0 0 0 0 7 30 29 17 2 0 0 85 1980 0 0 0 0 3 19 31 23 4 0 0 0 80 1981 0 0 0 0 0 0 14 25 16 0 0 *** *** 1982 0 0 0 0 0 17 29 25 10 0 0 *** *** 1983 0 0 0 0 *** *** 27 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 0 *** 0 0 0 4 25 *** 6 0 0 0 *** 1993 *** 0 0 0 0 5 19 15 11 0 0 0 *** 1994 0 0 0 0 1 6 15 18 1 0 0 0 41 1995 0 0 0 0 0 6 21 25 14 0 0 *** *** 1996 0 0 0 0 0 7 22 28 18 0 0 0 75 1997 0 0 0 0 0 13 21 25 7 0 0 0 66 1998 0 0 0 0 0 17 21 21 11 0 0 0 70 1999 0 0 0 0 6 22 23 31 14 0 0 0 96 2000 0 0 0 0 2 16 30 29 11 0 0 0 88 2001 0 0 *** 0 2 17 26 30 19 0 0 0 *** 2002 0 0 0 0 2 10 24 25 21 3 0 0 85 2003 0 0 0 0 0 11 23 26 9 0 0 0 69 MEAN 0 0 0 0 1 14 25 27 13 1 0 0 81 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR MORE THAN 40 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1965 0 0 0 0 0 0 0 0 0 0 0 0 0 1966 0 0 0 0 0 0 0 0 0 0 0 0 0 1967 0 0 0 0 0 0 0 0 0 0 0 0 0 1968 0 0 0 0 0 0 0 0 0 0 0 0 0 1969 0 0 0 0 0 0 0 0 0 0 0 0 0 1970 0 0 0 0 0 0 0 0 0 0 0 0 0 1971 0 0 0 0 0 0 0 0 0 0 0 0 0 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 1 1 0 0 0 0 2 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 *** *** *** 0 0 0 *** 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 0 0 0 0 0 0 5 0 0 0 0 0 5 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 0 0 0 0 0 2 0 0 0 0 *** *** 1982 0 0 0 0 0 0 0 0 0 0 0 *** *** 1983 0 0 0 0 *** *** 1 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 0 *** 0 0 0 0 0 *** 0 0 0 0 *** 1993 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 *** *** 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 *** 0 0 0 0 0 0 0 0 0 *** 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR MORE THAN 45 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1965 0 0 0 0 0 0 0 0 0 0 0 0 0 1966 0 0 0 0 0 0 0 0 0 0 0 0 0 1967 0 0 0 0 0 0 0 0 0 0 0 0 0 1968 0 0 0 0 0 0 0 0 0 0 0 0 0 1969 0 0 0 0 0 0 0 0 0 0 0 0 0 1970 0 0 0 0 0 0 0 0 0 0 0 0 0 1971 0 0 0 0 0 0 0 0 0 0 0 0 0 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 *** *** *** 0 0 0 *** 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 0 0 0 0 0 0 0 0 0 0 *** *** 1982 0 0 0 0 0 0 0 0 0 0 0 *** *** 1983 0 0 0 0 *** *** 0 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 0 *** 0 0 0 0 0 *** 0 0 0 0 *** 1993 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 *** *** 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 *** 0 0 0 0 0 0 0 0 0 *** 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 24 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. NO. OF FREEZING DAYS , DATE OF START AND END FREEZING START END YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MO DAY MO DAY -------------- 1964 *** 29 6 9 0 0 0 0 0 0 15 28 *** 11 1 4 23 1965 31 21 7 3 0 0 0 0 0 0 8 29 99 11 21 4 6 1966 19 16 12 2 0 0 0 0 0 0 7 23 79 11 16 4 24 1967 29 28 24 5 0 0 0 0 0 1 18 28 133 10 29 4 16 1968 31 20 8 2 0 0 0 0 0 5 19 26 111 10 2 4 2 1969 31 26 2 0 0 0 0 0 0 0 20 28 107 11 10 3 25 1970 31 26 20 3 0 0 0 0 0 0 2 27 109 11 29 4 25 1971 31 28 17 9 0 0 0 0 0 1 2 11 99 10 10 4 20 1972 31 29 30 0 0 0 0 0 0 1 18 31 140 10 31 3 30 1973 31 24 29 0 0 0 0 0 0 0 16 24 124 11 1 3 31 1974 31 27 12 0 0 0 0 0 0 0 0 22 92 12 6 3 13 1975 27 15 12 1 0 0 *** *** *** 0 0 21 *** 12 7 4 5 1976 24 27 21 0 0 0 0 0 0 0 17 13 102 11 2 3 29 1977 30 24 9 0 0 0 0 0 0 7 20 25 115 10 22 3 21 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1979 28 17 17 6 0 0 0 0 0 1 20 29 118 10 27 4 30 1980 31 27 16 20 0 0 0 0 19 25 28 26 192 9 9 4 27 1981 25 8 1 3 8 5 0 0 0 1 19 *** *** 10 17 6 22 1982 18 25 19 0 0 0 0 0 0 0 18 *** *** 11 2 3 31 1983 *** *** *** *** *** *** 0 *** *** *** *** *** *** ** ** ** ** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1992 28 *** 25 2 0 0 0 *** 0 0 7 20 *** 11 19 4 19 1993 *** 26 20 0 0 0 0 0 0 1 9 24 *** 10 8 3 25 1994 22 18 5 0 0 0 0 0 0 0 3 21 69 11 9 3 25 1995 21 18 12 0 0 0 0 0 0 1 10 *** *** 10 18 3 29 1996 24 16 11 2 0 0 0 0 0 1 12 8 74 10 29 4 6 1997 22 24 17 5 0 0 0 0 0 0 6 15 89 11 9 4 14 1998 30 25 10 2 0 0 0 0 0 0 1 13 81 11 26 4 2 1999 21 15 17 0 0 0 0 0 0 0 6 23 82 11 3 3 30 2000 23 25 16 0 0 0 0 0 0 0 14 17 95 11 7 3 27 2001 23 19 *** 0 0 0 0 0 0 0 7 8 *** 11 19 2 28 2002 25 17 9 0 0 0 0 0 0 0 10 23 84 11 16 3 31 2003 22 18 9 2 0 0 0 0 0 0 9 15 75 11 15 4 2 MEAN 26 22 14 3 0 0 0 0 1 2 11 21 100 9 9 6 22 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** -1.0 8.6 9.8 17.1 22.1 25.2 26.7 24.3 17.7 7.9 1.9 ****** 1965 -1.7 1.9 9.9 11.4 19.1 23.9 26.5 26.5 23.2 15.6 9.9 4.9 14.3 1966 7.3 5.5 8.1 11.6 16.8 24.3 27.4 27.9 22.8 16.2 10.4 3.8 15.2 1967 -2.3 -4.7 3.6 9.9 16.3 19.4 25.0 24.7 19.6 14.5 4.0 -2.5 10.6 1968 -6.6 -0.3 8.0 10.7 14.0 19.2 25.8 25.0 22.6 16.9 9.7 4.6 12.5 1969 -0.6 -0.2 8.4 10.1 17.9 23.9 24.3 25.0 20.5 16.7 7.1 5.2 13.2 1970 3.2 5.2 8.2 14.1 17.7 23.4 24.7 25.7 21.6 16.3 11.1 3.5 14.6 1971 -5.7 -0.1 8.8 11.3 19.6 22.6 26.0 24.9 21.8 14.9 8.2 4.5 13.0 1972 -5.7 -9.3 -0.7 12.4 14.1 21.8 26.2 24.6 22.0 19.0 7.2 -1.8 10.8 1973 -6.4 1.1 6.6 12.0 17.6 22.8 26.9 27.4 21.9 16.2 5.0 1.2 12.7 1974 -4.6 -4.3 4.5 11.2 20.9 24.7 24.9 24.6 21.4 17.4 16.6 2.7 13.3 1975 1.6 3.0 6.1 13.5 18.2 23.3 ****** ****** ****** 14.7 11.2 2.1 ****** 1976 0.6 -1.1 1.2 5.9 11.2 15.1 23.1 24.9 24.0 15.0 6.1 4.9 10.9 1977 -8.0 1.4 6.6 10.9 15.2 22.4 24.6 25.5 22.0 12.2 6.7 -0.2 11.6 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 -3.4 2.6 4.5 11.5 14.7 20.4 25.7 25.1 22.0 15.6 6.8 0.0 12.1 1980 -4.2 -0.7 6.3 3.4 18.2 23.2 27.8 24.0 10.1 2.9 1.8 0.9 9.5 1981 1.7 10.3 11.3 10.6 11.6 11.0 22.9 23.8 20.4 12.5 5.3 ****** ****** 1982 -1.4 -5.3 3.2 13.6 16.9 22.6 26.7 23.8 21.4 12.2 2.0 ****** ****** 1983 -9.3 -8.3 2.6 11.4 ****** ****** 27.1 ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 -4.1 ****** 2.5 11.0 13.8 21.4 25.3 ****** 20.2 15.4 7.4 2.3 ****** 1993 ****** -0.1 4.3 11.9 15.9 22.1 24.9 24.6 21.9 13.9 5.6 0.9 ****** 1994 2.1 3.0 8.0 14.3 17.5 22.4 24.8 24.8 19.5 14.5 9.0 0.5 13.4 1995 3.3 3.6 8.3 12.3 17.9 21.9 25.5 26.4 21.5 13.5 8.0 ****** ****** 1996 0.4 4.0 5.6 11.3 19.0 22.4 26.2 26.4 22.9 14.6 7.2 6.7 13.9 1997 1.3 -1.8 2.6 11.6 17.7 23.3 25.8 26.3 20.4 16.3 7.8 4.6 13.0 1998 -2.7 -0.4 7.1 13.4 18.1 24.6 25.8 26.2 21.8 15.3 12.3 7.1 14.0 1999 2.0 5.0 7.4 13.2 20.0 25.2 25.3 27.3 21.7 16.7 7.5 3.4 14.5 2000 1.0 1.8 6.4 15.3 19.7 24.1 27.8 26.8 22.0 13.7 6.7 3.4 14.1 2001 0.5 3.5 ****** 15.4 18.8 24.5 25.8 27.3 23.1 15.9 7.8 5.5 ****** 2002 -0.4 3.9 9.1 12.3 17.1 23.3 26.1 25.4 23.2 17.8 8.4 -0.2 13.8 2003 2.1 2.8 5.6 12.9 17.6 22.3 26.0 26.1 21.1 18.1 7.4 2.6 13.7 MEAN -1.4 0.7 6.1 11.6 17.0 22.1 25.7 25.6 21.4 15.1 7.7 2.7 12.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** ****** 1.4 0.1 4.2 12.2 14.1 14.6 13.1 8.0 -1.2 -4.2 ****** 1965 -10.0 -5.2 3.1 3.0 9.1 13.3 14.2 14.5 10.5 4.8 0.9 -1.4 4.7 1966 1.4 1.2 1.3 4.1 7.2 5.8 13.2 16.5 12.2 7.6 2.2 -2.2 5.9 1967 -10.0 -13.8 -2.1 2.3 7.8 9.4 15.2 16.7 12.0 5.5 -3.0 -10.7 2.4 1968 -19.4 -10.7 1.8 3.6 6.2 8.7 10.6 9.9 7.6 7.1 5.7 1.3 2.7 1969 -2.6 -2.7 3.6 5.8 9.8 9.6 14.1 14.0 9.8 9.3 2.6 0.4 6.1 1970 -1.3 0.6 2.8 7.2 8.3 12.1 16.6 15.7 12.6 7.6 4.8 -0.4 7.2 1971 -9.3 -2.9 2.6 5.8 9.6 11.9 14.7 13.2 3.1 0.7 2.2 -0.7 4.2 1972 -7.3 -11.1 -3.1 6.0 6.7 10.5 11.9 9.9 7.6 5.2 2.7 -4.5 2.9 1973 -8.3 -1.8 -0.6 2.4 6.6 8.7 12.0 12.7 7.6 3.7 -1.8 -2.5 3.2 1974 -7.5 -6.5 1.1 2.8 6.4 9.1 10.7 10.0 12.5 5.6 6.1 -1.3 4.1 1975 -1.7 -1.9 1.3 1.8 6.9 8.6 ****** ****** ****** -0.2 -2.4 -3.2 ****** 1976 -3.0 -5.8 -3.0 -0.1 2.0 2.3 3.1 7.6 8.2 -0.6 -0.8 -5.1 0.4 1977 -10.4 -3.5 -1.5 2.5 6.3 8.9 12.8 11.6 8.5 1.0 -1.3 -4.3 2.6 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 -7.9 -3.7 -2.2 1.8 5.6 10.2 12.6 14.0 9.9 8.1 1.3 -3.5 3.9 1980 -7.3 -6.9 -1.8 -2.8 5.6 8.5 12.9 7.5 -7.1 -11.1 -16.0 -12.9 -2.6 1981 -12.1 -2.9 -2.0 6.3 3.9 5.1 3.9 6.0 2.5 -1.9 -6.7 ****** ****** 1982 -3.5 -7.0 -2.2 5.0 8.5 6.9 5.0 8.2 7.4 6.0 -1.6 ****** ****** 1983 -12.8 -12.2 -3.7 3.6 ****** ****** 6.2 ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 -8.2 ****** -4.0 3.3 8.0 11.4 12.4 ****** 7.3 4.2 2.3 -2.6 ****** 1993 ****** -2.9 -1.5 1.7 7.4 8.0 11.4 8.9 4.0 2.9 1.4 -1.1 ****** 1994 -1.5 -2.1 0.6 5.4 7.1 10.5 12.7 10.8 7.6 7.5 3.0 -4.0 4.8 1995 -1.3 -0.7 -0.4 2.9 7.9 10.5 10.8 7.6 4.6 1.5 -1.5 ****** ****** 1996 -3.3 -0.8 -0.1 2.5 7.5 7.1 10.7 6.5 4.7 4.3 -0.3 0.2 3.3 1997 -5.2 -7.0 -2.7 1.7 7.0 9.5 10.4 9.6 5.7 4.7 2.9 -1.4 2.9 1998 -5.5 -4.9 -0.9 4.6 8.5 8.9 11.4 9.6 6.7 1.9 2.0 -1.2 3.4 1999 -1.6 -2.8 -2.5 1.5 3.0 4.9 9.4 8.2 5.0 2.0 -0.4 -1.3 2.1 2000 -4.5 -6.0 -4.3 2.5 3.6 4.7 8.3 7.1 4.0 2.6 -0.1 -0.4 1.5 2001 -3.9 -2.1 ****** 1.5 3.4 2.9 9.2 5.5 3.4 0.8 -0.8 -0.4 ****** 2002 -5.0 -3.3 -2.1 2.2 5.5 5.1 8.2 6.1 3.7 4.2 -0.8 -4.0 1.7 2003 -2.8 -2.9 -1.6 2.9 5.5 8.8 9.7 9.1 5.1 2.6 0.6 -1.3 3.0 MEAN -6.1 -4.6 -0.8 3.0 6.5 8.5 11.0 10.4 6.9 3.5 0.1 -2.7 3.0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** ****** 5.00 4.63 6.33 10.66 12.01 12.45 11.33 8.28 4.29 3.42 ****** 1965 2.47 3.48 5.70 5.77 8.75 11.47 11.97 12.16 9.45 6.37 4.97 4.18 7.23 1966 5.00 4.93 4.98 6.07 7.65 7.34 11.45 13.95 10.71 7.77 5.34 3.83 7.42 1967 2.38 1.74 3.88 5.41 8.08 8.97 12.98 14.23 10.57 6.84 3.96 2.49 6.79 1968 1.21 2.88 5.13 5.84 7.02 8.30 9.57 9.12 7.65 7.49 6.78 4.95 6.33 1969 3.76 3.91 5.82 6.92 8.98 9.09 12.05 11.98 9.04 8.69 5.54 4.70 7.54 1970 4.19 4.73 5.57 7.59 8.19 10.71 14.24 13.28 11.19 7.78 6.42 4.42 8.19 1971 2.37 3.78 5.43 6.90 8.82 10.44 12.43 11.24 5.77 4.91 5.34 4.27 6.81 1972 2.66 2.01 3.62 7.01 7.28 9.45 10.34 8.96 7.70 6.53 5.48 3.35 6.20 1973 2.54 4.00 4.30 5.35 7.27 8.50 10.52 10.83 7.67 6.02 4.07 3.76 6.24 1974 2.59 2.89 5.01 5.61 7.10 8.51 9.39 9.13 10.72 6.78 7.29 4.16 6.60 1975 4.09 3.99 5.10 5.18 7.50 8.30 ****** ****** ****** 4.45 3.77 3.64 ****** 1976 3.66 2.95 3.68 4.46 5.27 5.57 5.84 7.83 8.37 4.39 4.47 3.49 5.00 1977 2.19 3.61 4.16 5.51 7.24 8.79 11.34 10.65 8.49 4.95 4.10 3.38 6.20 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 2.65 3.52 4.02 5.28 6.94 9.42 11.68 12.56 9.76 8.36 5.18 3.55 6.91 1980 2.70 2.75 4.35 3.87 6.70 8.31 13.24 9.01 3.26 2.21 1.43 1.82 4.97 1981 1.92 4.41 4.20 7.34 6.21 6.68 6.07 7.15 5.67 4.01 2.80 ****** ****** 1982 3.56 2.85 3.87 6.55 8.22 7.43 6.52 8.07 7.61 6.87 4.05 ****** ****** 1983 1.78 1.88 3.54 5.89 ****** ****** 7.17 ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 2.62 ****** 3.44 5.87 8.00 9.95 10.78 ****** 7.59 6.10 5.54 3.83 ****** 1993 ****** 3.68 4.04 5.26 7.61 7.98 9.96 8.63 6.30 5.63 5.11 4.15 ****** 1994 4.06 3.88 4.73 6.65 7.49 9.74 10.92 9.71 7.83 7.67 5.68 3.46 6.82 1995 4.11 4.29 4.39 5.64 7.93 9.41 9.73 8.23 6.47 5.05 4.24 ****** ****** 1996 3.58 4.30 4.50 5.51 7.72 7.53 9.63 7.46 6.37 6.21 4.51 4.59 5.99 1997 3.22 2.91 3.77 5.23 7.41 8.90 9.52 9.18 6.77 6.29 5.55 4.08 6.07 1998 3.09 3.22 4.30 6.26 8.36 8.63 10.04 8.99 7.32 5.24 5.23 4.19 6.24 1999 4.03 3.68 3.82 5.09 5.66 6.58 8.78 8.30 6.47 5.25 4.38 4.14 5.51 2000 3.29 2.93 3.41 5.49 5.90 6.41 8.13 7.67 6.12 5.47 4.55 4.34 5.31 2001 3.46 3.91 ****** 5.08 5.80 5.80 8.57 6.96 5.75 4.82 4.36 4.49 ****** 2002 3.24 3.64 3.91 5.26 6.63 6.55 8.13 7.14 5.87 6.06 4.28 3.43 5.34 2003 3.70 3.64 4.07 5.57 6.67 8.43 9.01 8.68 6.53 5.47 4.77 4.18 5.89 MEAN 3.11 3.46 4.39 5.74 7.29 8.46 10.07 9.77 7.74 6.07 4.78 3.86 6.23 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** ****** 6.89 6.39 8.73 14.65 16.50 17.10 15.56 11.39 5.92 4.70 ****** 1965 3.39 4.78 7.85 7.95 12.03 15.75 16.45 16.71 13.02 8.79 6.85 5.75 9.95 1966 6.88 6.78 6.85 8.37 10.53 10.13 15.74 19.13 14.71 10.70 7.35 5.27 10.20 1967 3.27 2.39 5.35 7.45 11.11 12.33 17.79 19.46 14.51 9.42 5.46 3.42 9.33 1968 1.66 3.97 7.06 8.04 9.67 11.44 13.19 12.58 10.57 10.32 9.32 6.80 8.72 1969 5.16 5.37 8.00 9.50 12.35 12.53 16.54 16.45 12.46 11.95 7.62 6.46 10.37 1970 5.77 6.51 7.67 10.44 11.28 14.71 19.48 18.20 15.35 10.72 8.83 6.08 11.25 1971 3.26 5.20 7.48 9.49 12.14 14.36 17.07 15.45 7.99 6.79 7.34 5.88 9.37 1972 3.65 2.76 4.97 9.65 10.03 13.01 14.25 12.37 10.64 9.02 7.53 4.60 8.54 1973 3.48 5.49 5.93 7.38 10.02 11.72 14.48 14.92 10.59 8.31 5.61 5.17 8.59 1974 3.56 3.97 6.89 7.73 9.80 11.75 12.96 12.59 14.72 9.36 10.04 5.72 9.09 1975 5.62 5.49 7.01 7.16 10.34 11.46 ****** ****** ****** 6.16 5.21 5.00 ****** 1976 5.03 4.05 5.06 6.14 7.27 7.68 8.09 10.83 11.54 6.07 6.15 4.81 6.89 1977 3.01 4.96 5.73 7.60 9.97 12.12 15.58 14.65 11.71 6.84 5.66 4.64 8.54 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 3.64 4.84 5.53 7.28 9.56 12.96 16.03 17.21 13.42 11.49 7.13 4.89 9.50 1980 3.71 3.78 5.99 5.33 9.24 11.48 18.08 12.39 4.50 3.05 1.97 2.51 6.84 1981 2.65 6.08 5.80 10.08 8.55 9.19 8.41 9.89 7.86 5.55 3.87 ****** ****** 1982 4.90 3.91 5.32 9.02 11.31 10.26 9.03 11.15 10.51 9.46 5.57 ****** ****** 1983 2.43 2.57 4.88 8.11 ****** ****** 9.92 ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 3.59 ****** 4.74 8.08 11.00 13.69 14.84 ****** 10.48 8.42 7.61 5.27 ****** 1993 ****** 5.05 5.56 7.24 10.47 11.01 13.72 11.91 8.71 7.77 7.03 5.70 ****** 1994 5.58 5.34 6.52 9.17 10.33 13.39 15.02 13.38 10.80 10.56 7.81 4.76 9.39 1995 5.65 5.90 6.05 7.77 10.93 12.96 13.41 11.36 8.94 6.97 5.85 ****** ****** 1996 4.93 5.91 6.20 7.59 10.63 10.40 13.27 10.32 8.81 8.56 6.21 6.32 8.26 1997 4.43 3.99 5.18 7.21 10.22 12.27 13.13 12.66 9.36 8.68 7.63 5.61 8.36 1998 4.24 4.42 5.93 8.62 11.51 11.91 13.84 12.40 10.11 7.23 7.21 5.78 8.60 1999 5.53 5.06 5.27 7.02 7.83 9.11 12.12 11.47 8.95 7.25 6.03 5.69 7.61 2000 4.53 4.03 4.70 7.58 8.17 8.88 11.25 10.61 8.46 7.54 6.26 5.97 7.33 2001 4.75 5.38 ****** 7.01 8.01 8.04 11.85 9.63 7.97 6.66 6.00 6.18 ****** 2002 4.45 5.01 5.40 7.26 9.14 9.07 11.24 9.88 8.14 8.38 5.90 4.71 7.38 2003 5.09 5.01 5.60 7.69 9.21 11.63 12.43 11.99 9.03 7.57 6.57 5.75 8.13 MEAN 4.27 4.76 6.05 7.91 10.05 11.66 13.86 13.45 10.67 8.37 6.58 5.31 8.58 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 ****** ****** 4.51 6.38 11.71 12.49 16.43 18.89 15.47 9.46 5.32 2.51 ****** 1965 2.15 2.55 4.83 6.34 10.91 14.62 19.26 18.97 16.26 9.74 5.77 3.27 9.56 1966 3.60 2.44 4.38 5.73 9.53 21.92 21.81 19.17 13.93 8.04 5.49 2.93 9.91 1967 2.13 2.00 2.74 5.00 8.04 11.19 14.78 12.48 9.01 7.60 3.34 2.15 6.70 1968 2.24 2.89 3.80 5.06 6.53 11.44 21.36 20.32 18.06 10.19 3.07 1.81 8.90 1969 0.81 1.10 3.34 3.57 9.05 18.37 14.68 16.61 13.21 7.86 2.95 2.69 7.85 1970 2.16 2.62 3.54 6.61 9.63 15.29 12.98 16.14 12.01 9.04 4.96 2.14 8.09 1971 0.89 1.24 4.30 4.46 11.52 13.83 17.56 17.11 19.98 11.27 3.78 2.84 9.07 1972 0.47 0.42 1.00 5.27 6.66 14.16 20.70 19.57 16.80 14.18 2.91 1.06 8.60 1973 0.54 1.41 4.32 7.16 10.93 17.47 22.49 23.61 17.19 11.36 3.47 1.75 10.14 1974 0.92 0.77 1.89 6.06 15.85 20.62 19.49 19.58 11.74 11.72 10.40 1.89 10.08 1975 1.41 2.36 2.89 8.92 12.00 18.63 ****** ****** ****** 10.72 8.23 2.33 ****** 1976 1.42 1.66 1.70 3.30 6.34 10.26 21.01 21.71 19.55 11.57 3.82 4.71 8.92 1977 0.59 2.28 4.40 5.96 8.19 16.89 17.21 20.75 16.63 9.05 4.70 1.82 9.04 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 1.49 2.91 3.64 7.28 8.28 12.68 20.39 17.13 15.79 7.72 3.54 1.44 8.53 1980 1.07 2.18 4.09 2.86 13.39 18.95 21.96 19.54 10.08 4.90 5.55 4.31 9.07 1981 4.44 7.74 8.10 3.48 6.08 4.71 21.23 21.53 18.32 10.26 5.75 ****** ****** 1982 1.51 0.57 2.87 7.27 8.62 18.54 27.98 20.33 16.86 5.45 2.00 ****** ****** 1983 0.78 0.91 3.16 6.23 ****** ****** 28.51 ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1992 1.24 ****** 3.10 5.69 5.62 12.70 18.91 ****** 14.70 10.10 3.39 2.16 ****** 1993 ****** 1.28 3.23 7.36 8.39 16.75 19.30 20.30 19.19 8.97 2.47 0.95 ****** 1994 1.68 2.44 4.72 7.98 10.69 14.86 17.23 19.25 12.81 6.60 4.06 1.87 8.68 1995 2.33 2.18 5.35 7.04 10.43 14.42 20.50 24.94 18.39 9.48 5.60 ****** ****** 1996 1.60 2.58 3.22 6.39 12.43 17.87 22.09 26.03 20.80 9.05 4.41 3.76 10.85 1997 2.80 1.83 2.46 7.64 11.00 17.81 21.53 23.48 16.09 10.72 3.23 3.22 10.15 1998 0.94 1.76 4.55 7.71 10.26 20.45 20.48 23.56 17.56 11.33 7.63 4.95 10.93 1999 1.65 3.98 5.48 9.03 17.00 24.09 21.48 26.80 18.55 12.97 4.98 2.41 12.37 2000 2.39 3.29 5.55 10.54 15.84 22.60 27.90 26.48 19.40 9.01 3.92 2.02 12.41 2001 1.95 2.76 ****** 11.37 14.65 24.22 23.10 28.76 21.67 12.47 5.34 3.11 ****** 2002 1.83 3.47 6.85 7.45 11.51 20.78 23.92 24.39 21.83 13.19 5.78 1.59 11.88 2003 2.35 2.68 3.80 7.90 11.85 16.44 22.60 23.67 17.62 14.29 4.16 1.93 10.78 MEAN 1.70 2.29 3.93 6.55 10.43 16.50 20.63 21.11 16.53 9.94 4.67 2.50 9.73 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** *** 62 52 45 54 52 50 51 54 54 66 *** 1965 59 64 64 57 56 53 48 49 47 50 57 65 56 1966 67 75 64 62 56 34 44 51 54 58 57 67 57 1967 58 53 67 60 58 54 56 62 63 56 61 56 59 1968 41 50 65 62 60 52 42 41 41 56 77 80 56 1969 87 85 74 77 62 44 54 53 54 65 74 72 67 1970 73 74 70 65 56 53 63 56 59 59 67 77 64 1971 77 83 68 71 56 53 52 51 32 44 69 71 61 1972 89 87 84 67 63 51 42 42 42 44 75 83 64 1973 86 83 63 55 52 42 42 42 43 47 63 79 58 1974 81 85 79 60 42 40 43 41 60 49 54 76 59 1975 80 73 73 47 51 42 *** *** *** 37 40 69 *** 1976 78 71 74 66 54 45 30 35 39 37 62 50 53 1977 83 73 58 58 57 43 49 44 44 49 59 75 58 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 72 65 64 53 55 53 45 52 48 62 69 78 60 1980 79 65 60 65 48 42 41 36 31 38 26 38 47 1981 38 41 43 75 63 68 30 33 32 38 42 *** *** 1982 80 88 70 60 61 40 28 41 44 69 79 *** *** 1983 76 74 65 62 *** *** 31 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 75 *** 66 63 71 56 48 *** 46 50 73 72 *** 1993 *** 83 69 56 61 44 46 41 37 52 77 87 *** 1994 79 71 63 58 54 51 49 45 49 66 69 73 61 1995 73 75 58 57 54 53 43 35 39 48 56 *** *** 1996 77 73 69 58 52 40 41 33 35 54 61 66 55 1997 65 69 71 55 53 45 42 40 42 49 74 67 56 1998 82 73 60 59 57 41 44 40 42 45 54 61 55 1999 79 60 54 50 37 31 40 35 38 41 61 73 50 2000 68 60 51 46 38 32 33 33 34 52 65 77 49 2001 74 69 *** 43 40 28 39 29 30 40 58 69 *** 2002 72 62 50 52 51 34 35 33 30 44 56 76 50 2003 72 68 62 54 48 45 40 38 39 39 65 77 54 MEAN 73 71 65 59 54 45 43 42 43 50 62 70 56 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** *** 73 62 56 60 62 62 61 59 64 74 *** 1965 69 74 73 68 70 64 63 64 59 61 70 75 68 1966 75 83 79 75 73 47 55 63 65 65 65 75 68 1967 69 63 73 67 66 61 63 70 72 64 68 66 67 1968 56 61 72 67 68 59 57 55 56 73 89 89 67 1969 93 93 85 88 78 60 64 67 73 80 84 83 79 1970 81 85 82 77 71 70 75 69 71 76 78 86 77 1971 83 90 81 83 72 68 64 70 46 68 85 85 75 1972 93 90 90 80 75 64 51 57 56 61 85 89 74 1973 91 91 80 70 67 54 57 56 60 68 78 86 72 1974 87 92 87 76 55 57 58 54 84 68 68 84 73 1975 88 85 84 58 65 61 *** *** *** 43 45 77 *** 1976 85 80 81 72 65 57 41 45 49 49 69 61 63 1977 86 78 64 65 64 48 55 51 52 61 74 80 65 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 77 72 73 62 62 63 50 57 55 70 79 85 67 1980 84 75 72 71 72 60 52 46 39 46 31 49 58 1981 49 48 51 79 74 76 36 42 38 51 50 *** *** 1982 88 94 86 78 78 59 45 60 64 85 92 *** *** 1983 82 82 79 82 *** *** 50 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 85 *** 81 79 86 74 61 *** 60 64 83 82 *** 1993 *** 89 83 73 79 63 66 59 54 66 89 93 *** 1994 89 82 79 76 73 64 65 61 66 83 82 82 75 1995 83 87 76 76 71 72 57 50 57 64 75 *** *** 1996 87 85 84 74 70 55 58 49 51 66 76 79 70 1997 78 79 81 75 72 65 59 55 60 65 89 80 72 1998 88 83 79 81 79 58 64 59 58 61 67 76 71 1999 90 79 76 74 55 46 59 51 54 55 76 85 67 2000 79 74 69 64 56 47 50 47 47 67 82 88 64 2001 84 81 *** 63 58 42 60 43 41 54 72 81 *** 2002 81 75 66 67 68 50 50 49 43 57 72 83 63 2003 82 81 78 69 67 62 58 55 56 55 78 85 69 MEAN 81 80 77 73 69 60 57 56 57 64 74 80 69 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** *** 54 44 35 48 46 40 44 49 46 58 *** 1965 48 55 58 50 42 43 39 40 38 41 44 54 46 1966 60 67 53 51 43 25 35 42 45 51 50 57 48 1967 47 41 63 55 50 45 49 54 56 48 55 46 51 1968 28 41 60 56 54 46 30 31 31 42 68 72 47 1969 80 76 63 65 49 32 46 41 39 50 64 62 56 1970 65 64 59 53 44 38 49 44 47 47 56 66 53 1971 70 74 55 59 40 43 41 37 20 25 54 57 48 1972 85 84 76 52 49 38 34 30 30 31 64 76 54 1973 80 74 47 41 39 33 30 30 29 30 51 70 46 1974 74 77 71 44 28 27 32 32 40 34 39 67 47 1975 72 62 61 37 39 30 *** *** *** 31 34 62 *** 1976 69 62 66 60 45 33 20 25 30 26 54 42 44 1977 80 67 51 51 51 38 43 36 38 41 49 70 51 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 67 58 55 45 49 45 39 44 42 55 62 72 53 1980 74 58 49 58 32 31 27 25 25 28 21 30 38 1981 29 34 37 72 54 61 24 27 27 30 37 *** *** 1982 72 81 55 44 47 27 18 29 30 53 65 *** *** 1983 70 68 55 48 *** *** 18 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 65 *** 52 50 57 43 37 *** 36 39 61 61 *** 1993 *** 76 57 40 46 32 34 29 24 38 64 81 *** 1994 67 58 50 46 39 42 39 34 35 49 52 64 48 1995 62 63 42 44 41 40 31 23 25 34 39 *** *** 1996 67 60 58 45 39 30 29 20 23 41 46 51 42 1997 54 60 61 39 40 32 31 28 30 38 59 54 44 1998 74 64 46 44 41 29 33 26 30 31 40 46 42 1999 68 46 38 35 24 20 29 23 26 30 47 64 38 2000 57 46 37 33 26 23 22 23 24 40 51 66 37 2001 66 58 *** 29 28 18 25 18 22 28 46 57 *** 2002 64 50 36 41 37 24 25 22 22 33 42 70 39 2003 63 58 51 43 35 33 28 26 28 28 51 68 43 MEAN 65 61 54 48 41 35 33 31 32 38 50 61 46 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. NO. OF DAYS PRECIPITATION EQUAL OR MORE THAN 5 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 *** 4 5 8 0 0 0 0 0 0 2 1 *** 1965 2 0 2 3 0 1 0 0 1 4 0 1 14 1966 3 6 3 7 1 0 0 0 0 5 0 3 28 1967 4 9 1 3 4 0 0 0 0 2 1 1 25 1968 3 2 4 0 3 1 0 0 0 0 7 6 26 1969 7 3 10 9 3 0 0 0 0 4 1 5 42 1970 3 0 3 2 1 0 0 0 0 0 1 4 14 1971 2 0 3 7 0 0 0 0 0 1 1 1 15 1972 1 6 5 4 8 2 0 0 0 1 6 4 37 1973 2 2 3 4 1 0 0 0 0 1 4 2 19 1974 2 7 6 4 0 0 0 0 2 0 2 3 26 1975 0 6 5 4 5 0 *** *** *** 0 2 4 *** 1976 5 5 3 7 6 0 0 0 0 2 2 7 37 1977 12 6 12 8 9 1 0 0 0 3 2 5 58 1978 *** *** *** *** *** *** *** *** *** *** *** *** *** 1979 11 5 7 12 9 4 0 0 0 5 0 5 58 1980 14 3 12 14 7 1 0 0 6 8 3 2 70 1981 15 2 8 5 9 9 0 0 0 0 4 *** *** 1982 3 2 4 11 17 2 0 0 0 13 7 *** *** 1983 8 3 10 7 *** *** 0 *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 *** *** *** *** *** *** *** *** *** *** *** *** *** 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 *** *** *** *** *** *** *** *** *** *** *** *** *** 1991 *** *** *** *** *** *** *** *** *** *** *** *** *** 1992 2 *** 1 5 8 1 0 *** 0 0 7 3 *** 1993 *** 3 3 5 5 0 0 0 0 1 9 4 *** 1994 4 2 4 6 2 1 0 0 1 3 6 2 31 1995 3 3 2 4 2 2 0 0 0 0 1 *** *** 1996 5 5 5 4 3 0 0 0 0 1 2 2 27 1997 5 3 6 3 5 0 1 0 0 0 5 1 29 1998 3 2 4 4 1 0 0 0 0 0 1 1 16 1999 1 1 1 2 0 0 0 1 0 1 0 0 7 2000 2 1 3 3 1 0 0 0 0 0 1 4 15 2001 3 3 *** 2 2 0 0 0 0 0 3 4 *** 2002 3 3 2 4 4 0 0 0 0 0 3 4 23 2003 1 4 6 6 0 1 0 0 0 1 0 4 23 MEAN 4 3 5 5 4 1 0 0 0 2 3 3 30 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. HIGHEST AND LOWEST LIMITS FOR 40 YEARS DURING 1964-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 8.2 14.0 13.0 21.0 20.4 25.0 30.0 35.0 29.4 21.8 15.2 14.0 1 YEAR - DAY 2002- 3 1981-18 1965- 9 2003- 6 1999-31 1964-13 1966-15 1964-11 1976- 1 2002- 3 2002-12 1998-10 LOW. DRY 03 -22.2 -23.0 -11.2 -9.0 0.0 0.0 10.0 8.0 -10.0 -10.0 -12.0 -15.0 2 YEAR - DAY 1983-16 1968- 3 1974- 6 1980-16 1981- 4 1981- 1 1979-29 1981- 3 1980-28 1980-25 1980-27 1977-26 HIG. WET 03 6.2 12.8 10.0 14.0 16.0 18.1 22.0 22.0 20.0 15.4 12.2 9.8 3 YEAR - DAY 2002- 3 1981-18 1965- 9 1972-28 1965-27 1970-24 1966- 3 1966- 2 1964- 4 1979- 4 1974-15 1976-12 LOW. WET 03 -22.2 -24.0 -11.4 -10.1 -1.4 -1.1 5.0 2.6 -11.2 -10.8 -14.0 -15.1 4 YEAR - DAY 1983-16 1968- 3 1974- 6 1980-16 1979-10 1981-21 1981-11 1981- 3 1980-28 1980-18 1980-27 1977-26 HIG. DRY 09 16.0 25.0 24.0 26.4 32.0 35.2 39.0 38.0 36.0 30.4 27.0 20.4 5 YEAR - DAY 1966- 7 1981-19 1981- 8 1994-21 1999-31 1998-23 1980-28 2001- 2 1977-23 2002- 9 1974-15 1998-10 LOW. DRY 09 -16.0 -19.6 -6.0 0.0 5.2 6.4 18.0 20.0 0.0 -5.0 -7.0 -10.0 6 YEAR - DAY 1977-10 1968- 3 1972- 5 1997-10 1992- 3 1976- 6 1981- 8 1965- 5 1980-28 1980-18 1967-30 1967-23 HIG. WET 09 10.0 19.0 15.8 20.2 25.8 27.4 33.0 31.5 28.0 20.2 23.0 12.0 7 YEAR - DAY 1966- 2 1981-22 1975-23 1970-16 1975-27 1970- 3 1980-28 1977-13 1976-13 1970- 4 1974-15 1998- 9 LOW. WET 09 -16.2 -21.0 -6.4 -1.8 3.0 3.4 9.6 9.6 -3.6 -6.8 -10.0 -12.0 8 YEAR - DAY 1977-10 1968- 3 1972- 5 1980-19 1976- 3 1976- 6 1981- 8 1981-30 1980-28 1980-18 1967-29 1967-23 HIG. DRY 15 13.0 22.0 22.0 25.2 30.8 34.4 39.0 36.4 34.0 32.0 28.0 16.8 9 YEAR - DAY 1966- 7 1981-19 1981- 8 1997-26 1999-30 1998-23 1979-24 1995- 5 1979- 4 1979-10 1974-15 1998-10 LOW. DRY 15 -22.0 -19.6 -10.0 -1.0 4.6 8.0 19.3 19.2 4.0 0.0 -8.0 -13.0 10 YEAR - DAY 1983-28 1968- 2 1972- 5 1965- 4 1976- 3 1981-19 1969-12 1972- 1 1980-30 1977-22 1967-29 1972-27 HIG. WET 15 9.0 17.0 13.8 17.0 20.8 24.2 33.2 29.0 26.0 25.0 23.0 10.0 11 YEAR - DAY 1966- 7 1981-22 1975-23 1981-21 1998- 9 1994-26 1980-13 1968- 1 1964- 8 1979-10 1974- 9 1998- 9 LOW. WET 15 -22.2 -20.0 -10.2 -3.0 3.6 4.4 10.2 11.6 -0.4 -3.0 -11.0 -13.2 12 YEAR - DAY 1983-28 1968- 2 1972- 5 1965- 4 1976- 3 1981-23 1981-11 2000-31 1980-30 1980-10 1967-29 1972-27 HIG. MIN. 7.4 14.0 12.0 17.0 19.0 20.8 24.0 25.0 28.0 20.0 15.0 12.0 13 YEAR - DAY 2002- 3 1981-18 1981- 7 1981-22 1999-31 1998-24 1981-16 1976-31 1976- 1 1979- 4 1974- 3 1998-11 LOW. MIN. -26.0 -30.0 -14.0 -9.0 0.0 0.0 6.0 6.0 -10.0 -10.0 -15.0 -21.5 14 YEAR - DAY 1973- 7 1968- 2 1972-11 1980-16 1981- 3 1981- 1 1966- 6 1968-20 1980-28 1980-25 1967-29 1972-24 HIG. MAX. 16.0 28.0 25.0 29.5 34.6 38.0 42.0 40.0 38.0 32.0 30.0 20.6 15 YEAR - DAY 1966- 6 1981-19 1981- 8 1970-13 1999-30 1964- 5 1979- 7 1973- 3 1964-16 1964- 3 1974-15 1998-10 LOW. MAX. -12.8 -15.2 -4.0 1.0 8.5 12.0 22.0 23.5 7.0 0.0 -5.0 -9.0 16 YEAR - DAY 1983-16 1968- 3 1972- 5 1980-16 1976- 1 1981-20 1981- 6 1977-30 1980-28 1980-19 1967-30 1967-28 HIG. PPTN 40.0 127.0 62.0 51.0 51.0 42.0 5.5 5.4 16.0 35.0 41.4 32.0 17 YEAR - DAY 1982-28 1964- 3 1993- 8 1969- 2 1981-22 1981-17 1997- 5 1999-17 1980-13 1966-22 1993- 1 1968-27 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 40 YEARS DURING 1964-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 16.6 18.7 20.2 18.0 20.0 21.0 26.0 21.0 26.5 20.0 18.0 18.6 18 YEAR - DAY 1992- 6 1969-27 2002- 4 1977-18 1980-19 1980-30 1979-24 1979-12 1977-23 1981- 5 1965-30 1998-20 DRY 15 - DRY 09 12.0 12.0 12.0 11.0 13.0 13.4 11.6 12.0 12.2 11.7 11.0 8.2 19 YEAR - DAY 1983-28 1976- 8 1979-25 1966-19 1964-22 1975-27 1970-10 1981-27 1999-22 1971- 9 1979-28 1973- 4 DRY 15 - DRY 03 17.4 20.5 17.8 19.0 19.0 21.0 27.0 22.0 21.0 23.0 18.0 15.0 20 YEAR - DAY 1992-13 1969-27 1983-28 1979-29 1980-27 1980-13 1979-24 1979- 1 1979- 4 1979-10 1974-22 1980-27 WET 09 - WET 03 15.9 18.8 13.6 15.2 16.6 17.0 27.0 23.0 18.2 15.2 15.0 14.4 21 YEAR - DAY 1970-29 1969-27 1979-13 1980-25 1981- 4 1980-30 1980-28 1977-13 1979-10 1979-12 1970- 2 1980-27 WET 15 - WET 09 11.2 9.2 10.8 9.6 9.0 12.0 13.0 12.0 12.4 7.4 10.0 7.2 22 YEAR - DAY 1983-28 1971- 6 1979-25 1974-21 1964-31 1965-24 1970- 8 1968- 1 1976-13 1976- 3 1974- 9 1980-15 WET 15 - WET 03 17.4 19.5 12.8 13.0 14.2 15.0 23.2 22.0 15.2 19.2 14.0 12.4 23 YEAR - DAY 1992-13 1969-27 1983-28 1979-29 1979-19 1981- 8 1980-13 1980- 5 1980-11 1979-10 1974- 9 1980-27 DAY BY DAY DRY 03 17.5 15.6 11.8 13.0 11.0 10.0 13.0 15.0 13.5 13.4 14.0 13.9 24 YEAR - DAY 1977-19 2001- 2 2002-10 1979-19 1980-24 1981-22 1980- 1 1964-12 1979-30 2001-17 1979-15 1976-20 DAY BY DAY WET 03 17.0 14.6 10.0 8.6 9.8 9.6 10.0 12.4 10.3 8.0 11.3 12.0 25 YEAR - DAY 1977-19 1969-28 1965-13 1993-24 1980-24 1975-21 1966- 4 1976-15 1979-30 1970- 8 1979-15 1976-20 DAY BY DAY DRY 09 13.0 12.0 12.8 15.6 16.4 11.0 12.0 15.0 17.0 13.0 16.0 17.6 26 YEAR - DAY 1982-15 1979-25 1999-11 1993-20 1999-20 1964- 4 1966-11 1980-19 1980- 8 1977-22 2001-18 1976-20 DAY BY DAY WET 09 11.0 11.0 10.1 9.4 10.4 11.4 12.4 14.0 10.6 10.7 13.0 15.6 27 YEAR - DAY 1983-18 1968- 4 1970-28 1977-24 1981- 4 1970- 4 1980-28 1980-19 1976-13 1977-22 1974-15 1976-20 DAY BY DAY DRY 15 14.0 17.0 10.8 10.8 16.0 14.0 14.0 10.0 14.0 13.0 18.0 17.4 28 YEAR - DAY 1977-19 1982- 6 1975-15 1993-20 1999-20 1980-16 1979-25 1964- 7 1980- 8 1981-12 1974-16 1976-20 DAY BY DAY WET 15 12.7 17.0 9.0 7.4 8.0 11.8 13.4 13.0 10.6 9.6 11.0 14.0 29 YEAR - DAY 1977-19 1982- 6 1982-25 1980- 8 1965-16 1976- 4 1980-15 1980-31 1980- 1 1981-12 1974-16 1976-20 DAY BY DAY MIN. 14.5 14.2 11.0 10.2 9.1 13.6 8.0 9.6 13.5 13.3 12.0 13.0 30 YEAR - DAY 1992-14 2001- 2 1965-13 1993-21 1970-19 1999-14 1968-18 2000- 7 1979-30 1996- 3 1998-27 1998-12 DAY BY DAY MAX. 12.0 12.0 12.0 11.0 14.4 15.0 10.0 9.0 14.6 11.4 15.0 12.5 31 YEAR - DAY 1968- 6 1971-21 1981-24 1964-17 1999-20 1964- 5 1979-24 1972- 3 1969-10 1993- 5 1974-16 1968-25 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** -1.4 7.7 8.6 14.9 20.8 23.4 24.1 22.2 15.9 6.4 1.0 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** -4.7 2.4 2.0 4.8 9.7 13.0 13.7 12.2 7.7 -0.4 -4.0 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 2.0 13.1 15.3 25.0 32.0 33.8 34.4 32.2 24.0 13.2 5.9 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 6.7 10.7 13.3 20.2 22.3 20.8 20.7 20.0 16.3 13.6 9.9 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** 4.86 4.12 5.16 8.29 10.79 11.42 9.78 6.67 3.84 2.83 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** 5.37 5.08 7.35 12.81 13.89 14.02 13.43 9.63 4.89 3.90 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** 4.77 4.70 6.48 10.88 11.36 11.93 10.77 8.53 4.15 3.52 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -13.0 -3.0 -3.0 3.0 4.0 10.0 10.0 10.0 3.0 -12.0 -11.0 ****** DAY ** 1 2 17 1 4 6 15 9 27 30 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 7.0 22.0 25.0 32.0 38.0 39.0 37.0 38.0 32.0 18.0 12.0 ****** DAY ** 12 30 2 31 5 15 1 16 3 14 6 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 127.0 20.0 26.0 0.0 0.0 0.0 0.0 0.0 0.0 13.0 11.0 ****** DAY ** 3 19 18 ** ** ** ** ** ** 20 13 MONTHLY TOTAL PRECIPITATION IN MM. ***** 222.0 78.0 160.0 0.0 0.0 0.0 0.0 0.0 0.0 23.0 14.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 60.4 32.2 0.0 7.4 NO. OF DAYS WITH PRECIPITATION. *** 4 8 8 0 0 0 0 0 0 3 2 *** NO. OF DAYS PRECIPITATION EQUAL *** 4 8 8 0 0 0 0 0 0 3 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 4 4 8 0 0 0 0 0 0 1 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** 71 57 52 54 60 57 58 52 60 65 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** 59 49 40 55 50 46 49 54 53 67 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** 57 50 43 54 48 46 47 55 50 66 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 17 0 0 0 0 0 0 0 0 3 13 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 8 0 0 0 0 0 0 0 0 2 2 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 3 28 31 31 29 7 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** 29 6 9 0 0 0 0 0 0 15 28 *** DATE OF START AND END FREEZING START = 1 NOV. END = 23 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -3.0 1.0 8.9 10.1 17.3 20.6 23.5 23.5 20.0 13.4 9.3 4.2 12.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.3 -3.4 2.9 3.3 8.4 11.2 13.8 13.7 10.8 5.5 2.6 -3.3 4.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.2 5.4 14.8 16.9 26.3 30.0 33.2 33.2 29.3 21.3 15.9 11.6 20.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.5 8.8 11.9 13.6 17.9 18.8 19.4 19.5 18.5 15.8 13.3 14.9 15.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.91 3.14 5.34 5.10 7.89 10.01 11.04 11.42 8.56 5.89 4.20 3.44 6.49 MEAN OF MIXING RATIO AT 09 GMT. 2.88 3.88 6.25 6.58 9.58 13.63 13.69 13.86 11.03 7.14 5.32 4.67 8.21 MEAN OF MIXING RATIO AT 15 GMT. 2.62 3.42 5.52 5.64 8.78 10.77 11.17 11.20 8.77 6.00 5.38 4.41 6.97 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -16.0 -4.0 -6.0 5.0 8.0 11.0 11.0 8.0 2.0 -3.0 -14.0 -16.0 DAY 23 4 13 5 4 11 11 12 30 28 29 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 13.0 20.0 28.0 30.0 34.0 38.0 38.0 32.0 28.0 22.0 18.0 38.0 DAY 14 13 7 27 28 27 19 20 7 4 8 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 23.0 4.0 22.0 20.0 0.0 6.5 0.0 0.0 7.0 24.0 0.0 6.0 24.0 DAY 9 3 2 28 ** 5 ** ** 29 22 ** 17 MONTHLY TOTAL PRECIPITATION IN MM. 41.0 4.0 32.0 49.0 0.0 6.5 0.0 0.0 7.0 62.0 0.0 6.0 207.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 37.1 26.7 3.4 32.8 NO. OF DAYS WITH PRECIPITATION. 4 1 3 5 0 1 0 0 1 7 0 1 23 NO. OF DAYS PRECIPITATION EQUAL 4 1 3 5 0 1 0 0 1 7 0 1 23 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 1 2 0 0 0 0 0 2 0 0 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 55 67 71 65 66 63 61 63 58 58 62 69 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 63 61 54 49 51 43 44 42 47 51 60 52 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 61 63 61 54 52 46 41 41 39 47 59 66 53 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 11 1 1 0 0 0 0 0 0 0 11 50 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 9 3 0 0 0 0 0 0 0 0 0 0 12 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 18 31 31 17 0 0 0 98 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 21 7 3 0 0 0 0 0 0 8 29 99 DATE OF START AND END FREEZING START = 21 NOV. END = 6 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.6 5.4 7.1 10.1 14.9 19.8 23.4 24.6 20.3 14.1 8.7 3.2 13.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.4 0.4 1.4 3.6 5.1 7.5 13.2 15.6 11.9 7.7 2.8 -0.9 5.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.6 10.3 12.7 16.7 24.6 32.1 33.5 33.6 28.8 20.5 14.6 7.3 20.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.0 9.9 11.3 13.1 19.5 24.6 20.3 18.0 16.9 12.8 11.8 8.2 14.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.40 4.24 4.78 5.56 6.54 6.17 10.85 13.23 10.18 6.63 4.85 3.68 6.76 MEAN OF MIXING RATIO AT 09 GMT. 5.37 5.31 5.28 6.40 8.47 8.51 13.24 15.82 12.10 8.69 5.91 4.04 8.26 MEAN OF MIXING RATIO AT 15 GMT. 5.23 5.23 4.86 6.27 7.94 7.33 10.25 12.81 9.84 7.99 5.25 3.76 7.23 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.0 -3.0 -3.0 0.0 3.0 5.0 6.0 13.0 8.0 4.0 -2.0 -4.0 -4.0 DAY 13 3 23 1 19 1 6 27 27 28 27 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 16.0 19.0 25.0 30.0 38.0 37.0 37.0 35.0 25.0 19.0 12.0 38.0 DAY 6 25 8 30 22 9 25 1 2 2 3 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 15.0 15.0 16.0 12.0 9.0 0.0 0.0 0.0 0.0 35.0 0.0 10.0 35.0 DAY 27 28 19 22 4 ** ** ** ** 22 ** 28 MONTHLY TOTAL PRECIPITATION IN MM. 38.0 57.0 45.2 65.0 9.0 0.0 0.0 0.0 0.0 96.0 0.0 21.0 331.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 42.3 22.3 0.0 35.3 NO. OF DAYS WITH PRECIPITATION. 6 6 6 11 1 0 0 0 0 5 0 3 38 NO. OF DAYS PRECIPITATION EQUAL 6 6 6 11 1 0 0 0 0 5 0 3 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 2 1 0 0 0 0 0 5 0 1 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 71 77 75 73 70 46 53 62 63 57 60 71 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 71 55 54 47 30 43 48 50 57 56 62 53 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 77 62 60 51 28 37 44 49 59 56 66 55 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 1 1 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 25 29 31 16 0 0 0 103 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 19 16 12 2 0 0 0 0 0 0 7 23 79 DATE OF START AND END FREEZING START = 16 NOV. END = 24 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -3.0 -6.3 2.4 8.4 14.3 16.9 22.4 22.1 18.0 13.0 3.4 -3.4 9.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.3 -10.4 -1.5 2.6 5.9 8.0 12.2 12.6 9.7 5.9 -2.0 -8.4 2.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.2 -2.2 6.3 14.2 22.6 25.8 32.5 31.7 26.3 20.0 8.8 1.6 15.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.5 8.2 7.8 11.6 16.7 17.8 20.3 19.1 16.6 14.1 10.8 10.0 13.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.01 1.34 3.58 4.76 5.87 6.55 10.29 11.24 8.79 6.20 3.67 2.07 5.53 MEAN OF MIXING RATIO AT 09 GMT. 2.56 2.00 4.19 6.21 9.74 11.12 15.31 17.31 12.48 7.80 4.11 2.81 7.97 MEAN OF MIXING RATIO AT 15 GMT. 2.58 1.87 3.88 5.26 8.64 9.23 13.33 14.13 10.46 6.52 3.87 2.58 6.86 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.0 -17.0 -9.0 -6.0 2.0 3.0 9.0 10.0 5.0 0.0 -15.0 -17.0 -17.0 DAY 9 16 29 1 9 5 3 21 25 29 29 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 2.0 13.0 25.0 27.0 31.0 37.0 35.0 33.0 27.0 16.0 15.0 37.0 DAY 13 10 24 29 18 25 24 6 16 9 5 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 30.0 15.0 6.0 10.0 20.0 0.0 0.0 0.0 4.0 5.0 7.0 5.0 30.0 DAY 15 23 22 17 4 ** ** ** 24 9 11 22 MONTHLY TOTAL PRECIPITATION IN MM. 77.0 74.0 10.0 30.5 52.0 0.0 0.0 0.0 4.0 17.0 19.2 12.0 295.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 54.4 27.9 1.4 16.3 NO. OF DAYS WITH PRECIPITATION. 5 10 4 4 4 0 0 0 1 5 9 3 45 NO. OF DAYS PRECIPITATION EQUAL 5 10 4 4 4 0 0 0 1 5 9 3 45 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 3 0 2 3 0 0 0 0 0 0 0 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 53 45 69 63 58 55 60 66 69 60 63 53 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 57 66 60 57 53 54 61 59 54 58 57 58 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 57 67 58 59 52 53 59 59 54 61 58 58 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 27 7 1 0 0 0 0 0 0 8 24 90 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 17 23 1 0 0 0 0 0 0 0 4 14 59 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 28 30 5 0 0 0 70 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 28 24 5 0 0 0 0 0 1 18 28 133 DATE OF START AND END FREEZING START = 29 OCT. END = 16 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -8.0 -1.9 6.9 9.2 12.7 17.1 21.4 20.3 18.1 14.3 7.8 3.2 10.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -12.6 -7.1 1.5 3.5 5.9 8.5 10.7 8.7 6.7 3.9 -0.0 -2.8 2.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. -3.4 3.4 12.2 15.0 19.6 25.6 32.1 31.8 29.5 24.7 15.7 9.3 18.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.2 10.5 10.7 11.5 13.7 17.1 21.4 23.1 22.8 20.8 15.7 12.1 15.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.12 2.40 4.58 5.20 6.32 7.50 9.62 8.46 7.19 6.48 5.99 4.44 5.77 MEAN OF MIXING RATIO AT 09 GMT. 1.24 3.20 5.69 6.45 7.98 9.13 9.65 9.21 8.33 7.87 7.59 5.22 6.80 MEAN OF MIXING RATIO AT 15 GMT. 1.26 3.05 5.11 5.87 6.77 8.27 9.44 9.69 7.43 8.12 6.75 5.19 6.41 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 -30.0 -1.0 0.0 4.0 5.0 7.0 6.0 3.0 -2.0 -4.0 -8.0 -30.0 DAY 11 2 2 1 13 4 14 20 30 27 6 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 13.0 16.0 22.0 25.0 34.0 38.0 38.3 33.0 30.0 20.0 16.0 38.3 DAY 3 24 28 28 21 28 20 1 2 6 14 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 7.0 10.0 4.6 17.0 14.0 0.0 0.0 0.0 2.0 19.5 32.0 32.0 DAY 15 2 8 22 10 1 ** ** ** 31 17 27 MONTHLY TOTAL PRECIPITATION IN MM. 26.0 16.0 32.0 14.2 57.0 14.0 0.0 0.0 0.0 4.5 88.5 84.3 336.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 22.0 25.3 0.0 52.7 NO. OF DAYS WITH PRECIPITATION. 4 3 6 5 9 1 0 0 0 3 12 10 53 NO. OF DAYS PRECIPITATION EQUAL 4 3 6 5 9 1 0 0 0 3 12 9 52 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 0 2 1 0 0 0 0 5 2 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 40 45 66 61 63 56 56 54 56 70 88 83 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 39 49 64 60 60 50 34 33 32 43 70 76 51 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 43 57 65 64 57 50 35 36 34 55 75 81 54 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 15 0 0 0 0 0 0 0 0 3 13 60 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 27 11 0 0 0 0 0 0 0 0 0 0 38 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 25 26 18 5 0 0 80 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 20 8 2 0 0 0 0 0 5 19 26 111 DATE OF START AND END FREEZING START = 2 OCT. END = 2 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.9 -1.2 8.2 10.2 16.9 21.1 22.5 22.8 18.1 15.5 5.5 3.4 11.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.7 -6.8 3.3 4.4 8.9 10.8 13.0 12.4 8.5 7.6 -2.6 -3.7 4.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.9 4.5 13.1 16.0 24.8 31.3 32.0 33.3 27.8 23.3 13.6 10.5 19.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.6 11.3 9.8 11.6 15.9 20.5 19.0 20.9 19.3 15.7 16.2 14.2 15.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.43 3.12 5.42 6.13 8.13 8.75 10.07 10.19 8.11 8.16 4.30 3.87 6.64 MEAN OF MIXING RATIO AT 09 GMT. 4.01 4.38 5.92 7.36 9.24 9.66 12.97 12.83 10.18 9.53 6.08 5.14 8.11 MEAN OF MIXING RATIO AT 15 GMT. 3.84 4.24 6.11 7.26 9.56 8.85 13.11 12.92 8.85 8.38 6.25 5.09 7.87 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.0 -14.5 0.0 1.0 5.5 5.0 10.0 9.0 1.0 1.0 -8.5 -8.5 -14.5 DAY 31 3 24 3 22 11 1 29 12 25 20 10 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.0 14.0 20.0 27.0 33.0 37.0 36.5 37.5 34.5 30.0 20.5 13.5 37.5 DAY 15 28 31 27 10 12 15 11 3 7 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 27.0 11.5 35.0 51.0 11.0 0.0 0.0 3.0 0.0 13.3 17.6 30.0 51.0 DAY 19 28 8 2 8 ** ** 25 ** 18 9 13 MONTHLY TOTAL PRECIPITATION IN MM. 82.5 29.5 171.0 179.2 26.2 0.0 0.0 3.0 0.0 44.8 18.1 75.9 630.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.9 32.6 0.5 22.0 NO. OF DAYS WITH PRECIPITATION. 9 4 11 10 5 0 0 1 0 5 2 5 52 NO. OF DAYS PRECIPITATION EQUAL 9 4 11 10 5 0 0 1 0 5 1 5 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 1 8 6 1 0 0 0 0 3 1 4 27 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 89 84 86 76 59 60 67 72 79 79 81 77 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 83 80 66 67 51 34 47 42 45 59 69 66 59 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 90 85 72 76 59 39 57 50 44 56 74 70 64 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 18 0 0 0 0 0 0 0 0 18 14 68 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 6 5 0 0 0 0 0 0 0 0 0 0 11 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 22 25 30 8 2 0 0 89 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 26 2 0 0 0 0 0 0 0 20 28 107 DATE OF START AND END FREEZING START = 10 NOV. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.4 2.4 6.5 12.1 15.8 20.8 23.2 23.4 19.2 14.2 10.1 2.2 12.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.8 -4.9 -0.2 3.7 7.3 10.9 13.1 13.7 8.9 3.7 2.8 -3.7 4.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.6 9.6 13.3 20.5 24.3 30.7 33.3 33.1 29.6 24.7 17.3 8.1 21.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.4 14.5 13.5 16.8 17.0 19.8 20.2 19.4 20.7 21.0 14.5 11.8 17.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.10 4.08 4.73 6.28 7.62 9.63 11.43 11.42 8.28 6.39 5.41 4.05 6.87 MEAN OF MIXING RATIO AT 09 GMT. 4.78 5.22 6.48 8.78 9.09 11.82 16.74 14.79 13.15 8.94 7.75 4.62 9.35 MEAN OF MIXING RATIO AT 15 GMT. 4.69 4.88 5.50 7.71 7.86 10.67 14.56 13.63 12.12 8.02 6.08 4.60 8.36 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.0 -11.0 -6.5 -1.5 2.4 9.1 10.1 10.0 4.5 0.5 -3.0 -10.0 -18.0 DAY 29 3 7 21 9 26 18 29 18 9 29 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 15.5 19.5 29.5 29.0 33.8 39.0 37.0 32.0 29.5 24.5 15.0 39.0 DAY 4 28 16 13 30 3 10 14 1 4 2 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 2.0 24.5 20.6 6.2 0.0 0.0 0.0 0.0 0.0 6.2 17.0 24.5 DAY 26 23 3 19 4 ** ** ** ** ** 10 11 MONTHLY TOTAL PRECIPITATION IN MM. 34.0 2.0 54.7 25.7 6.2 0.0 0.0 0.0 0.0 0.0 11.3 39.5 173.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 52.3 18.4 0.0 29.3 NO. OF DAYS WITH PRECIPITATION. 4 1 3 2 1 0 0 0 0 0 4 5 20 NO. OF DAYS PRECIPITATION EQUAL 4 1 3 2 1 0 0 0 0 0 3 5 19 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 3 1 0 0 0 0 0 0 0 1 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 74 83 77 75 69 68 70 68 70 75 76 83 74 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 72 66 65 55 48 41 53 46 48 48 62 73 56 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 72 68 64 52 50 65 53 59 54 62 74 62 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 17 4 0 0 0 0 0 0 0 0 16 61 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 24 29 30 16 0 0 0 99 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 26 20 3 0 0 0 0 0 0 2 27 109 DATE OF START AND END FREEZING START = 29 NOV. END = 25 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -7.7 -2.3 7.3 9.3 17.7 20.6 23.7 22.6 20.0 14.4 8.1 4.6 11.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -13.2 -8.6 -0.4 1.6 8.7 11.2 13.8 13.5 9.3 4.1 2.8 0.8 3.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. -2.3 3.9 14.9 17.0 26.8 29.9 33.6 31.7 30.8 24.6 13.3 8.3 19.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.9 12.5 15.3 15.4 18.1 18.7 19.8 18.2 21.5 20.5 10.5 7.5 15.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.23 3.32 4.90 5.95 8.22 9.62 10.75 10.82 5.33 5.32 5.05 4.36 6.32 MEAN OF MIXING RATIO AT 09 GMT. 2.44 4.16 5.72 7.74 8.83 11.01 13.68 12.41 6.63 5.10 5.21 4.15 7.26 MEAN OF MIXING RATIO AT 15 GMT. 2.46 3.87 5.67 7.02 9.40 10.70 12.86 10.47 5.36 4.32 5.75 4.31 6.85 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -25.0 -18.0 -5.5 -3.5 4.0 7.5 12.0 12.0 4.0 0.0 -1.5 -5.0 -25.0 DAY 26 1 7 19 3 3 7 1 20 10 25 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.5 13.0 21.0 25.0 31.0 33.0 38.0 35.5 34.6 30.0 18.0 15.0 38.0 DAY 14 27 27 28 5 29 19 2 10 14 10 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.1 3.0 17.3 15.4 0.0 0.0 0.0 0.0 0.0 6.0 5.0 5.0 17.3 DAY 15 7 28 23 ** ** ** ** ** 26 26 26 MONTHLY TOTAL PRECIPITATION IN MM. 19.4 6.0 41.0 77.3 0.0 0.0 0.0 0.0 0.0 6.0 13.5 16.5 179.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 37.0 43.0 0.0 20.0 NO. OF DAYS WITH PRECIPITATION. 2 2 6 14 0 0 0 0 0 1 4 5 34 NO. OF DAYS PRECIPITATION EQUAL 2 2 6 14 0 0 0 0 0 1 4 5 34 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 2 2 0 0 0 0 0 0 0 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 86 80 82 71 67 61 70 46 68 84 83 73 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 75 79 56 61 41 44 43 40 24 28 55 57 50 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 77 83 67 69 56 49 51 43 27 35 69 73 58 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 25 8 0 0 0 0 0 0 0 0 6 70 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 29 8 0 0 0 0 0 0 0 0 0 0 37 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 17 30 29 21 2 0 0 101 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 17 9 0 0 0 0 0 1 2 11 99 DATE OF START AND END FREEZING START = 10 OCT. END = 20 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1972 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -7.8 -10.9 -2.4 12.9 13.6 18.6 22.5 21.8 20.1 15.5 5.3 -4.8 8.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -13.6 -18.4 -7.6 6.6 6.7 7.8 11.7 11.5 10.3 5.1 -2.2 -11.3 0.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. -2.1 -3.4 2.8 19.2 20.6 29.4 33.3 32.0 30.0 25.8 12.8 1.7 16.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.5 15.0 10.4 12.6 13.9 21.6 21.6 20.5 19.7 20.7 15.0 13.0 16.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.31 1.60 3.41 6.33 7.11 8.79 9.12 8.78 7.36 6.21 4.93 3.08 5.75 MEAN OF MIXING RATIO AT 09 GMT. 2.91 2.36 3.80 6.91 7.42 10.22 11.24 9.09 8.24 6.98 5.64 3.54 6.53 MEAN OF MIXING RATIO AT 15 GMT. 2.76 2.09 3.64 7.80 7.32 9.32 10.67 9.02 7.51 6.40 5.86 3.42 6.32 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 -25.2 -14.0 1.5 3.5 4.0 7.0 7.0 5.5 -2.0 -8.0 -21.5 -25.2 DAY 31 13 11 2 9 10 2 2 18 31 9 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 1.5 2.6 11.5 25.0 27.0 33.0 39.0 37.0 33.0 31.0 18.5 8.0 39.0 DAY 5 17 31 29 31 28 12 2 5 2 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 15.4 20.2 15.0 24.0 19.0 17.0 0.0 0.0 0.0 5.0 31.0 25.0 31.0 DAY 22 8 25 11 1 11 ** ** ** 7 4 13 MONTHLY TOTAL PRECIPITATION IN MM. 17.6 69.9 56.3 54.0 84.0 33.0 0.0 0.0 0.0 5.0 95.0 60.5 475.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 30.3 36.0 0.0 33.8 NO. OF DAYS WITH PRECIPITATION. 3 7 13 5 13 3 0 0 0 1 6 5 56 NO. OF DAYS PRECIPITATION EQUAL 2 7 11 5 13 3 0 0 0 1 6 5 53 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 1 2 2 2 0 0 0 0 5 3 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 87 89 76 73 63 48 57 56 60 84 87 72 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 88 86 78 53 50 40 36 32 34 33 66 78 56 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 91 89 86 71 64 48 43 38 36 38 74 83 63 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 29 26 0 0 0 0 0 0 0 14 31 131 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 28 24 4 0 0 0 0 0 0 0 0 10 66 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 14 31 27 18 4 0 0 94 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 29 30 0 0 0 0 0 0 1 18 31 140 DATE OF START AND END FREEZING START = 31 OCT. END = 30 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1973 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -9.7 0.9 4.8 9.7 17.8 21.8 24.0 24.7 20.6 16.1 5.4 1.8 11.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -17.0 -4.1 -3.8 2.3 11.7 14.4 14.1 14.0 11.0 9.1 0.3 -1.6 4.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. -2.4 5.9 13.5 17.0 23.8 29.3 33.9 35.5 30.2 23.1 10.5 5.1 18.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.6 10.0 17.3 14.7 12.1 14.9 19.8 21.5 19.2 14.0 10.2 6.7 14.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.13 3.70 4.03 5.21 6.77 7.42 9.55 9.08 6.91 6.14 3.68 3.47 5.67 MEAN OF MIXING RATIO AT 09 GMT. 2.87 4.23 4.32 5.06 7.46 9.06 11.81 11.51 7.76 6.21 4.33 3.99 6.55 MEAN OF MIXING RATIO AT 15 GMT. 2.63 4.09 4.56 5.78 7.58 9.01 10.18 11.90 8.34 5.70 4.21 3.82 6.48 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -26.0 -13.5 -9.5 0.5 4.5 12.0 11.0 10.5 7.5 1.0 -5.5 -9.9 -26.0 DAY 7 4 11 3 1 24 17 18 13 31 5 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 4.0 16.5 18.5 23.5 31.0 36.0 40.0 40.0 33.5 28.0 17.5 13.4 40.0 DAY 12 28 14 14 27 27 26 3 3 2 13 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 18.0 9.0 16.0 48.0 0.4 0.0 0.0 0.0 5.0 41.0 6.7 48.0 DAY 31 15 8 8 10 12 ** ** ** 31 21 17 MONTHLY TOTAL PRECIPITATION IN MM. 21.5 28.3 31.5 49.2 52.5 0.4 0.0 0.0 0.0 9.0 92.4 16.3 301.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.0 33.9 0.0 39.1 NO. OF DAYS WITH PRECIPITATION. 4 3 7 8 3 1 0 0 0 2 4 4 36 NO. OF DAYS PRECIPITATION EQUAL 4 3 6 8 3 0 0 0 0 2 4 4 34 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 0 2 1 0 0 0 0 0 4 0 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 88 77 67 65 54 56 53 60 68 73 83 69 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 88 77 50 41 40 34 36 30 30 33 53 74 49 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 86 83 62 57 50 39 35 44 39 39 65 79 57 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 15 19 0 0 0 0 0 0 0 1 3 69 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 23 4 0 0 0 0 0 0 0 0 0 2 29 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 14 30 31 17 0 0 0 93 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 1 0 0 0 0 2 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 24 29 0 0 0 0 0 0 0 16 24 124 DATE OF START AND END FREEZING START = 1 NOV. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1974 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -3.9 -4.0 4.5 11.0 20.3 23.9 25.1 24.7 20.3 15.7 15.4 2.8 13.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.5 -8.1 0.9 5.3 12.6 15.9 18.6 17.7 13.3 7.6 7.3 -1.5 6.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.3 0.1 8.2 16.8 28.0 31.9 31.6 31.8 27.4 23.8 23.5 7.1 19.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.2 8.2 7.3 11.5 15.4 16.0 13.0 14.1 14.1 16.2 16.2 8.6 12.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.33 2.29 4.67 5.19 6.66 8.66 9.55 8.04 10.40 5.74 5.23 3.53 6.02 MEAN OF MIXING RATIO AT 09 GMT. 2.87 3.34 5.24 5.81 7.11 8.15 9.77 10.42 9.62 7.05 7.12 4.51 6.75 MEAN OF MIXING RATIO AT 15 GMT. 2.58 3.04 5.13 5.83 7.51 8.73 8.87 8.92 12.12 7.56 9.52 4.44 7.02 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -19.5 -12.0 1.0 7.0 13.0 16.5 13.5 9.5 2.5 1.2 -7.0 -19.5 DAY 27 5 6 5 1 1 30 25 30 25 17 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 3.0 6.0 15.0 23.0 31.5 36.5 37.5 37.5 32.0 29.0 30.0 13.0 37.5 DAY 11 26 23 15 26 20 1 13 1 5 15 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.2 17.5 16.5 13.8 2.8 0.0 0.5 0.0 15.0 0.0 12.0 8.0 17.5 DAY 6 11 19 19 3 ** 16 ** 12 ** 30 5 MONTHLY TOTAL PRECIPITATION IN MM. 22.2 88.2 79.2 50.9 2.8 0.0 0.5 0.0 20.0 0.0 21.0 27.5 312.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 60.7 17.2 6.6 15.5 NO. OF DAYS WITH PRECIPITATION. 8 11 13 9 1 0 1 0 2 0 2 7 54 NO. OF DAYS PRECIPITATION EQUAL 7 11 12 8 1 0 0 0 2 0 2 7 50 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 5 5 2 0 0 0 0 1 0 1 0 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 84 84 72 55 57 58 53 83 68 63 79 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 76 83 72 48 31 28 33 35 40 37 43 71 50 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 82 88 81 60 39 35 36 36 57 43 55 77 57 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 21 5 0 0 0 0 0 0 0 0 7 60 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 16 12 0 0 0 0 0 0 0 0 0 0 28 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 6 24 29 22 6 0 1 0 88 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 12 0 0 0 0 0 0 0 0 22 92 DATE OF START AND END FREEZING START = 6 DEC. END = 13 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1975 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.1 2.8 5.5 11.8 14.6 20.8 ***** ***** ***** 12.6 10.4 2.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -2.8 -0.9 0.7 4.0 6.0 10.6 ***** ***** ***** 5.5 3.0 -1.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.0 6.5 10.3 19.6 23.2 31.1 ***** ***** ***** 19.8 17.8 5.5 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.8 7.4 9.6 15.6 17.2 20.5 ***** ***** ***** 14.3 14.8 6.7 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.41 3.65 4.10 4.43 6.37 8.75 ***** ***** ***** 4.52 3.81 3.21 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.47 4.12 5.54 6.01 8.24 8.76 ***** ***** ***** 4.54 3.79 3.87 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.40 4.22 5.66 5.12 7.89 7.40 ***** ***** ***** 4.29 3.70 3.82 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -9.8 -9.0 0.0 2.0 7.0 ***** ***** ***** 2.0 1.0 -7.0 ****** DAY 15 12 17 5 12 14 ** ** ** 13 16 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.0 12.0 18.0 25.0 31.0 36.0 ***** ***** ***** 21.5 21.0 11.0 ****** DAY 2 18 23 18 28 23 ** ** ** 4 1 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 3.2 31.0 14.0 26.0 10.0 2.0 ***** ***** ***** 4.0 7.0 18.0 ****** DAY 18 21 1 20 7 4 ** ** ** 15 28 23 MONTHLY TOTAL PRECIPITATION IN MM. 10.2 89.0 51.0 48.0 44.0 2.0 ***** ***** ***** 4.0 16.0 59.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 46.5 29.1 ***** 24.4 NO. OF DAYS WITH PRECIPITATION. 4 8 8 6 8 1 *** *** *** 1 3 8 *** NO. OF DAYS PRECIPITATION EQUAL 4 8 8 6 8 1 *** *** *** 1 3 8 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 4 2 1 1 0 *** *** *** 0 0 3 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 80 77 56 60 61 *** *** *** 41 43 68 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 76 67 67 42 44 33 *** *** *** 33 36 69 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 71 74 42 47 33 *** *** *** 37 40 71 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 12 6 1 0 0 0 *** *** *** 0 0 6 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** *** *** 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 *** *** *** 0 0 3 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 26 *** *** *** 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** *** *** 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** *** *** 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 15 12 1 0 0 *** *** *** 0 0 21 *** DATE OF START AND END FREEZING START = 7 DEC. END = 5 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1976 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.6 -0.6 1.1 6.5 11.8 16.4 22.0 24.3 22.6 13.1 6.1 3.8 10.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.7 -2.8 -1.5 3.6 7.6 9.7 15.3 17.9 16.8 5.7 -0.2 0.3 5.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.9 1.6 3.7 9.4 16.0 23.1 28.7 30.7 28.4 20.6 12.3 7.2 15.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 4.6 4.4 5.2 5.8 8.4 13.4 13.4 12.8 11.6 14.9 12.5 6.9 9.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.25 2.87 3.17 4.24 4.81 4.65 5.46 7.38 6.80 4.09 3.05 3.52 4.44 MEAN OF MIXING RATIO AT 09 GMT. 3.84 3.24 3.85 4.65 5.75 4.93 5.64 7.91 9.47 4.29 6.16 3.58 5.28 MEAN OF MIXING RATIO AT 15 GMT. 3.89 2.73 4.02 4.48 5.26 7.13 6.43 8.20 8.83 4.80 4.19 3.36 5.28 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -5.0 -6.0 2.0 2.8 2.5 12.0 12.0 7.0 2.0 -5.0 -9.0 -9.0 DAY 2 5 1 3 11 14 14 6 29 19 20 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 10.0 8.5 15.5 26.0 28.0 31.0 33.0 35.0 27.0 18.0 16.0 35.0 DAY 18 8 31 26 27 28 23 23 5 8 4 15 24 HOUR MAXIMUM PRECIPITATION IN MM. 24.0 30.0 25.0 30.0 26.0 0.0 0.0 0.0 0.0 15.0 7.0 11.0 30.0 DAY 19 10 6 30 13 ** ** ** ** 31 25 22 MONTHLY TOTAL PRECIPITATION IN MM. 69.0 82.0 47.0 106.0 111.0 0.0 0.0 0.0 0.0 25.0 18.1 64.0 522.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 37.9 41.6 0.0 20.5 NO. OF DAYS WITH PRECIPITATION. 8 7 6 12 10 0 0 0 0 2 7 8 60 NO. OF DAYS PRECIPITATION EQUAL 8 7 6 12 10 0 0 0 0 2 6 8 59 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 3 2 5 4 0 0 0 0 2 0 5 25 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 68 67 68 58 48 39 44 41 46 67 55 56 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 79 76 78 64 55 36 22 27 37 29 65 48 51 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 69 78 68 50 52 29 35 39 35 55 48 53 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 6 6 0 0 0 0 0 0 0 3 10 27 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 7 11 0 0 0 18 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 7 11 7 0 0 0 0 0 0 0 0 12 37 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 8 27 15 0 0 0 50 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 24 27 21 0 0 0 0 0 0 0 17 13 102 DATE OF START AND END FREEZING START = 2 NOV. END = 29 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -8.0 1.7 6.8 10.5 14.4 20.5 23.4 24.4 21.0 12.3 7.0 0.0 11.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -12.3 -3.7 1.8 5.1 8.1 12.1 15.6 15.9 12.4 5.6 0.5 -3.3 4.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. -3.6 7.0 11.7 15.9 20.8 29.0 31.1 32.9 29.6 18.8 13.5 3.4 17.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.7 10.7 9.9 10.8 12.7 16.9 15.5 17.0 17.2 13.2 13.0 6.7 12.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.93 2.77 3.34 4.26 5.33 5.27 7.29 6.63 5.64 4.11 3.52 3.15 4.44 MEAN OF MIXING RATIO AT 09 GMT. 2.63 4.30 4.94 6.51 9.03 11.30 13.86 14.39 11.30 5.96 5.14 3.80 7.76 MEAN OF MIXING RATIO AT 15 GMT. 2.02 3.76 4.32 5.77 7.36 9.81 12.87 10.94 8.54 4.79 3.65 3.18 6.42 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -23.0 -11.0 -3.5 0.4 4.0 8.0 10.5 9.0 9.0 -4.0 -2.0 -15.0 -23.0 DAY 10 3 5 17 16 1 4 31 19 24 14 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 3.5 17.5 19.0 20.5 28.0 32.5 35.5 39.0 37.0 31.0 18.0 13.0 39.0 DAY 20 28 2 23 13 29 12 11 23 2 28 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 24.2 13.0 53.0 29.5 25.5 8.5 0.0 1.0 2.0 14.5 23.0 22.0 53.0 DAY 4 5 2 16 17 6 ** 6 3 17 12 13 MONTHLY TOTAL PRECIPITATION IN MM. 149.3 53.4 226.9 106.0 138.5 11.5 0.0 2.0 2.0 48.5 36.0 83.9 858.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.1 29.8 0.5 19.6 NO. OF DAYS WITH PRECIPITATION. 18 8 21 17 14 2 0 2 1 9 3 14 109 NO. OF DAYS PRECIPITATION EQUAL 17 8 21 17 14 2 0 2 1 9 3 14 108 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 6 2 7 1 5 0 0 0 0 2 2 2 27 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 76 62 63 62 47 52 49 51 60 73 79 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 84 76 58 59 58 44 50 46 43 46 53 74 58 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 68 54 52 52 38 45 36 38 42 51 72 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 14 0 0 0 0 0 0 0 1 0 11 55 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 2 0 0 0 0 2 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 23 3 0 0 0 0 0 0 0 0 0 8 34 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 14 23 26 14 3 0 0 80 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 24 9 0 0 0 0 0 0 7 20 25 115 DATE OF START AND END FREEZING START = 22 OCT. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -2.8 3.3 4.5 10.9 14.4 19.4 25.2 23.9 21.0 15.5 6.6 0.3 11.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.8 -1.8 -1.1 4.2 7.4 11.6 15.0 14.7 12.0 8.3 -0.2 -4.1 4.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.1 8.3 10.1 17.6 21.4 27.3 35.5 33.1 30.0 22.8 13.4 4.6 18.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.9 10.0 11.2 13.4 14.0 15.7 20.5 18.4 18.0 14.5 13.6 8.7 13.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.41 2.97 3.19 4.03 4.79 6.44 6.12 7.22 5.46 5.74 3.81 3.01 4.60 MEAN OF MIXING RATIO AT 09 GMT. 3.08 4.12 5.08 6.60 8.54 11.73 14.68 16.30 12.90 9.98 6.45 4.33 8.65 MEAN OF MIXING RATIO AT 15 GMT. 2.46 3.47 3.78 5.21 7.48 10.10 14.16 14.15 10.91 9.34 5.11 3.32 7.46 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.0 -12.0 -10.0 -2.0 0.8 8.0 10.0 11.0 4.5 0.0 -5.0 -10.0 -19.0 DAY 12 24 5 29 10 1 29 17 29 27 23 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 17.0 18.0 27.0 28.0 33.0 42.0 39.0 37.0 32.0 20.0 10.0 42.0 DAY 1 14 17 4 27 30 7 18 13 10 11 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 35.0 23.0 26.0 26.0 34.0 19.0 0.0 0.0 0.0 16.5 4.0 19.0 35.0 DAY 9 8 27 27 29 18 ** ** ** 6 15 28 MONTHLY TOTAL PRECIPITATION IN MM. 137.8 73.2 111.5 171.0 149.5 57.5 0.0 0.0 0.0 55.5 13.0 65.8 834.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 38.6 45.3 0.0 16.1 NO. OF DAYS WITH PRECIPITATION. 15 6 8 18 10 4 0 0 0 6 6 12 85 NO. OF DAYS PRECIPITATION EQUAL 15 6 8 18 10 4 0 0 0 6 6 12 85 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 4 5 7 5 3 0 0 0 2 0 1 31 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 71 72 60 60 62 49 57 53 69 78 84 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 71 65 62 52 56 53 45 54 49 61 64 77 59 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 59 57 47 50 45 41 44 43 57 63 74 54 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 8 7 0 0 0 0 0 0 0 5 14 53 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 15 0 1 0 0 0 0 0 0 0 0 3 19 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 30 29 17 2 0 0 85 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 5 0 0 0 0 0 5 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 17 17 6 0 0 0 0 0 1 20 29 118 DATE OF START AND END FREEZING START = 27 OCT. END = 30 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -4.0 -0.4 6.0 3.1 17.2 21.7 26.3 23.0 9.4 2.5 0.8 0.7 8.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.5 -4.1 1.6 -1.4 9.5 13.3 17.2 14.6 1.5 -2.6 -5.7 -3.7 2.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.4 3.4 10.6 7.7 25.0 30.1 35.4 31.3 17.3 7.5 7.3 5.3 15.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.9 7.5 9.0 9.1 15.5 16.8 18.2 16.7 15.8 10.1 13.0 9.0 12.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.23 2.51 4.03 2.79 6.50 6.98 4.29 3.57 1.85 1.45 0.77 1.26 3.19 MEAN OF MIXING RATIO AT 09 GMT. 3.28 2.89 4.89 4.99 7.09 9.37 17.15 11.06 3.84 2.81 2.06 2.20 5.97 MEAN OF MIXING RATIO AT 15 GMT. 2.56 2.83 4.13 3.98 6.49 8.59 18.26 12.40 4.08 2.45 1.46 2.03 5.77 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.0 -10.0 -5.0 -9.0 5.0 9.0 13.0 10.0 -10.0 -10.0 -13.0 -12.0 -17.0 DAY 15 5 3 16 24 8 31 29 28 25 28 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 8.0 18.0 15.0 31.0 34.0 39.0 35.0 35.0 14.0 15.0 11.0 39.0 DAY 3 3 22 6 21 3 6 14 1 13 1 14 24 HOUR MAXIMUM PRECIPITATION IN MM. 19.0 36.0 29.0 47.0 24.0 13.0 0.0 0.0 16.0 23.0 14.0 17.5 47.0 DAY 16 25 21 11 10 27 ** ** 13 26 8 12 MONTHLY TOTAL PRECIPITATION IN MM. 174.1 63.6 173.0 287.5 107.0 13.0 0.0 0.0 83.0 98.0 34.0 27.7 1060.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 38.7 38.4 7.8 15.1 NO. OF DAYS WITH PRECIPITATION. 23 6 16 18 8 1 0 0 11 8 4 4 99 NO. OF DAYS PRECIPITATION EQUAL 19 5 16 18 8 1 0 0 11 8 4 4 94 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 7 2 7 12 5 1 0 0 5 4 1 1 45 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 74 72 67 71 59 28 28 33 37 24 40 51 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 78 59 56 67 37 36 46 38 30 39 30 37 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 77 62 51 62 36 32 51 43 32 39 23 37 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 14 4 9 0 0 0 0 7 12 24 13 110 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 0 0 0 0 0 3 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 18 4 0 0 0 0 0 0 0 1 0 3 26 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 19 31 23 4 0 0 0 80 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 16 20 0 0 0 0 19 25 28 26 192 DATE OF START AND END FREEZING START = 9 SEP. END = 27 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.9 10.1 11.4 10.1 11.3 10.3 22.4 22.8 19.3 12.1 5.4 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -1.7 5.1 7.5 6.5 4.3 3.5 15.5 14.6 10.5 4.8 -0.3 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.5 15.2 15.3 14.1 18.5 17.2 29.4 31.0 28.2 19.4 11.2 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.2 10.1 7.8 7.6 14.2 13.7 13.9 16.4 17.7 14.6 11.5 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.80 3.42 3.60 5.94 4.75 4.72 4.68 5.08 3.59 3.26 2.25 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 1.99 5.06 4.78 8.31 7.00 7.62 6.89 7.98 7.57 4.65 3.30 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 1.97 4.52 4.23 7.77 6.89 7.72 6.64 8.38 5.90 4.09 2.79 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -3.0 -2.0 -2.0 0.0 0.0 11.0 8.0 2.0 0.0 -8.0 ***** ****** DAY 9 9 2 14 3 1 8 3 24 17 23 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 28.0 25.0 20.0 25.0 22.0 40.0 35.0 33.0 28.0 18.0 ***** ****** DAY 4 19 8 17 14 9 17 5 1 5 1 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 37.6 22.0 37.0 43.0 51.0 42.0 0.0 0.0 0.0 0.0 30.0 ***** ****** DAY 18 21 26 24 22 17 ** ** ** ** 29 ** MONTHLY TOTAL PRECIPITATION IN MM. 201.6 42.0 134.0 121.6 245.0 224.0 0.0 0.0 0.0 0.0 57.0 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 36.8 57.6 0.0 5.6 NO. OF DAYS WITH PRECIPITATION. 17 3 8 7 9 10 0 0 0 0 4 *** *** NO. OF DAYS PRECIPITATION EQUAL 17 3 8 6 9 10 0 0 0 0 4 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 9 2 6 4 8 8 0 0 0 0 3 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 43 43 46 77 73 76 36 39 38 51 49 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 33 40 42 75 57 63 29 30 29 32 39 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 37 40 42 74 59 65 25 30 28 32 38 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 0 0 0 0 0 0 0 0 0 6 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 14 25 16 0 0 *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 25 8 1 3 8 5 0 0 0 1 19 *** *** DATE OF START AND END FREEZING START = 17 OCT. END = 22 JUNE IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1982 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.8 -5.4 3.1 12.8 16.0 20.6 24.3 22.7 20.3 12.9 3.0 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -5.6 -11.1 -2.4 5.7 9.8 11.5 14.9 13.5 11.3 6.8 -1.5 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.2 0.3 8.2 20.0 22.3 29.9 33.8 31.9 29.3 18.0 6.6 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.8 11.4 10.6 14.3 12.5 18.4 18.9 18.4 18.0 11.2 8.1 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.85 2.17 3.58 6.13 8.04 7.56 6.83 7.51 6.68 6.48 3.75 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 3.82 3.37 4.15 6.82 8.41 7.33 6.49 8.57 8.50 6.93 4.22 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 3.65 2.99 3.99 6.68 8.20 7.40 6.23 8.13 7.59 7.22 4.18 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.0 -19.0 -8.0 1.0 5.5 9.0 11.0 12.5 9.0 3.0 -8.0 ***** ****** DAY 19 8 1 1 8 2 8 5 18 10 16 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 5.5 14.5 25.0 27.0 37.0 38.5 37.0 35.0 24.5 18.5 ***** ****** DAY 4 1 30 30 18 23 13 21 7 17 5 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 40.0 6.0 11.0 32.0 22.0 12.0 0.0 0.0 2.0 32.0 14.0 ***** ****** DAY 28 14 15 14 1 28 ** ** 2 3 9 ** MONTHLY TOTAL PRECIPITATION IN MM. 68.0 27.0 40.0 214.0 209.0 21.0 0.0 0.0 4.0 213.0 69.0 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 15.6 51.3 0.5 32.6 NO. OF DAYS WITH PRECIPITATION. 5 6 6 11 18 3 0 0 2 15 9 *** *** NO. OF DAYS PRECIPITATION EQUAL 5 6 6 11 18 3 0 0 2 15 9 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 1 10 13 1 0 0 0 11 3 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 87 83 75 77 59 44 60 63 84 91 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 78 88 62 49 49 30 20 31 33 54 69 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 89 67 56 56 33 21 31 35 70 77 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 11 24 13 0 0 0 0 0 0 0 5 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 9 12 2 0 0 0 0 0 0 0 2 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 17 29 25 10 0 0 *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 18 25 19 0 0 0 0 0 0 0 18 *** *** DATE OF START AND END FREEZING START = 2 NOV. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1983 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** 25.1 ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 16.1 ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. -5.5 -3.6 7.9 17.8 ***** ***** 34.1 ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** 18.0 ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.58 1.67 3.13 5.19 ***** ***** 7.22 ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 1.99 2.13 3.93 6.73 ***** ***** 7.83 ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 1.54 1.83 3.57 5.75 ***** ***** 6.45 ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 9.0 ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** 6 ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 3.2 1.0 19.4 22.0 ***** ***** 40.0 ***** ***** ***** ***** ***** ****** DAY 1 7 28 8 ** ** 16 ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 15.0 13.0 17.0 22.0 ***** ***** 0.0 ***** ***** ***** ***** ***** ****** DAY 2 19 14 23 ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 86.2 31.0 106.0 83.0 ***** ***** 0.0 ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 72.9 27.1 0.0 ***** NO. OF DAYS WITH PRECIPITATION. 12 4 13 9 *** *** 0 *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL 11 4 13 9 *** *** 0 *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 2 4 3 *** *** 0 *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 81 79 82 *** *** 50 *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 72 70 57 53 *** *** 25 *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 72 60 50 *** *** 18 *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 28 26 2 0 *** *** 0 *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** 27 *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** 1 *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** 0 *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** 0 *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -4.9 ***** 2.0 10.1 13.2 19.1 23.4 ***** 18.4 14.3 7.2 2.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -9.2 ***** -3.4 4.3 8.2 11.8 14.9 ***** 9.9 6.5 2.2 -1.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.4 ***** 7.3 15.9 18.2 26.5 31.9 ***** 26.8 22.1 12.2 5.6 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.8 ***** 10.7 11.6 10.0 14.7 17.0 ***** 16.9 15.6 10.0 6.8 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.32 ***** 3.06 5.36 7.71 9.36 9.16 ***** 6.35 5.12 4.70 3.59 ***** MEAN OF MIXING RATIO AT 09 GMT. 2.74 ***** 3.72 5.95 8.19 10.67 11.87 ***** 8.72 6.82 6.12 3.92 ***** MEAN OF MIXING RATIO AT 15 GMT. 2.74 ***** 3.54 6.30 8.09 9.83 11.32 ***** 7.70 6.37 5.79 3.98 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 ***** -10.0 0.0 3.5 9.0 11.5 ***** 3.5 1.0 -10.0 -7.0 ****** DAY 10 ** 1 3 5 5 12 ** 30 8 28 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.0 ***** 16.0 24.0 28.0 32.5 38.5 ***** 31.5 26.5 19.5 11.5 ****** DAY 19 ** 30 12 29 29 30 ** 9 4 6 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.1 ***** 5.0 12.0 19.0 16.0 0.0 ***** 0.0 0.0 26.9 19.0 ****** DAY 3 ** 11 18 12 25 ** ** ** ** 7 3 MONTHLY TOTAL PRECIPITATION IN MM. 28.8 ***** 16.0 54.0 101.5 24.0 0.0 ***** 0.0 0.0 127.3 41.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 11.4 45.7 0.0 42.9 NO. OF DAYS WITH PRECIPITATION. 6 *** 7 7 14 4 0 *** 0 0 10 5 *** NO. OF DAYS PRECIPITATION EQUAL 5 *** 5 7 13 4 0 *** 0 0 10 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 *** 0 3 3 1 0 *** 0 0 5 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 *** 76 76 85 73 61 *** 59 63 79 79 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 *** 60 51 63 48 42 *** 40 40 65 61 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 *** 61 61 64 45 40 *** 39 48 74 76 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 *** 14 0 0 0 0 *** 0 0 4 7 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 *** 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 14 *** 3 0 0 0 0 *** 0 0 0 2 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 4 25 *** 6 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 *** 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 *** 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 *** 25 2 0 0 0 *** 0 0 7 20 *** DATE OF START AND END FREEZING START = 19 NOV. END = 19 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** -0.8 3.8 11.6 15.1 20.0 22.9 23.0 20.7 13.6 5.4 0.8 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** -4.4 -0.8 6.0 9.3 12.7 15.4 15.5 12.6 7.2 1.8 -1.7 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 2.7 8.4 17.0 21.0 27.3 30.4 30.4 28.7 20.0 9.0 3.3 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 7.1 9.2 11.0 11.7 14.6 15.0 14.9 16.1 12.8 7.2 5.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 3.35 3.63 5.28 7.70 8.27 9.79 8.54 6.08 5.19 4.87 3.91 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 3.87 4.28 5.13 7.67 7.88 10.08 8.80 6.70 5.61 5.08 4.25 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 3.71 4.21 5.35 7.45 7.79 10.08 8.55 6.12 6.11 5.38 4.30 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -12.5 -6.5 0.4 2.4 7.5 11.6 12.0 9.0 -0.8 -8.4 -8.4 ****** DAY ** 6 23 24 4 23 2 25 10 8 15 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 14.5 20.5 25.4 26.8 34.4 36.6 36.0 34.5 29.6 18.2 10.8 ****** DAY ** 27 30 19 31 27 25 9 1 4 9 2 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 24.9 62.0 41.7 37.6 0.0 0.0 2.6 0.0 23.0 41.4 24.5 ****** DAY ** 2 8 8 13 ** ** 7 ** 28 1 8 MONTHLY TOTAL PRECIPITATION IN MM. ***** 60.4 100.9 121.0 90.1 0.0 0.0 3.1 0.0 27.7 134.6 62.4 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 26.9 35.2 0.5 37.4 NO. OF DAYS WITH PRECIPITATION. *** 6 8 11 14 0 0 2 0 3 10 6 *** NO. OF DAYS PRECIPITATION EQUAL *** 6 8 11 13 0 0 1 0 3 9 6 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 2 3 4 2 0 0 0 0 1 5 3 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 87 80 69 78 63 66 58 54 65 84 91 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 78 61 46 50 35 37 33 28 39 66 82 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 83 66 52 55 34 37 33 29 52 80 89 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 13 4 0 0 0 0 0 0 0 6 4 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 8 0 0 0 0 0 0 0 0 1 4 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 5 19 15 11 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** 26 20 0 0 0 0 0 0 1 9 24 *** DATE OF START AND END FREEZING START = 8 OCT. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.0 2.8 7.5 13.4 16.1 20.7 22.7 22.8 18.6 14.2 9.0 0.5 12.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.1 -1.4 2.7 7.1 9.7 13.9 15.7 15.1 11.9 7.8 4.7 -2.7 6.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.1 7.0 12.3 19.6 22.6 27.4 29.8 30.5 25.4 20.7 13.3 3.6 18.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.2 8.4 9.6 12.5 12.9 13.5 14.1 15.4 13.5 12.9 8.6 6.3 11.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.88 3.56 4.51 6.11 7.38 8.74 10.08 8.94 7.04 6.77 5.47 3.16 6.30 MEAN OF MIXING RATIO AT 09 GMT. 4.10 3.84 4.67 6.91 7.20 10.32 11.31 10.13 7.77 7.90 5.74 3.63 6.96 MEAN OF MIXING RATIO AT 15 GMT. 4.21 4.24 5.01 6.94 7.90 10.16 11.36 10.06 8.69 8.35 5.82 3.60 7.20 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.6 -6.6 -2.4 0.6 4.4 9.2 10.6 12.4 4.6 1.0 -1.0 -12.4 -12.4 DAY 25 4 9 5 19 30 2 3 20 9 9 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.8 14.6 19.4 27.4 30.0 33.8 35.6 37.4 32.8 26.6 19.4 9.8 37.4 DAY 3 27 31 21 26 11 30 18 12 8 2 17 24 HOUR MAXIMUM PRECIPITATION IN MM. 21.0 9.0 10.0 21.5 10.5 7.0 0.0 0.0 12.4 8.5 35.0 16.0 35.0 DAY 4 28 12 1 13 28 ** ** 9 19 6 3 MONTHLY TOTAL PRECIPITATION IN MM. 72.4 22.0 39.0 79.9 21.0 7.0 0.0 0.0 12.4 32.0 123.9 35.2 444.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 30.0 24.3 2.8 43.0 NO. OF DAYS WITH PRECIPITATION. 9 5 9 9 4 1 0 0 1 7 10 6 61 NO. OF DAYS PRECIPITATION EQUAL 9 5 9 9 4 1 0 0 1 7 10 6 61 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 1 4 1 0 0 0 1 0 4 1 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 86 79 77 74 72 63 65 61 64 82 79 75 73 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 71 59 50 50 41 45 43 37 36 50 56 67 50 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 75 61 52 48 45 41 37 48 66 71 77 58 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 6 0 0 0 0 0 0 0 0 0 12 20 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 5 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 6 15 18 1 0 0 0 41 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 18 5 0 0 0 0 0 0 0 3 21 69 DATE OF START AND END FREEZING START = 9 NOV. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.5 3.6 7.8 11.4 16.6 20.0 23.7 24.8 20.5 12.9 7.7 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -1.1 -0.7 1.7 5.7 10.1 12.9 16.3 16.1 13.1 5.8 2.1 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.1 7.9 13.9 17.1 23.1 27.2 31.1 33.5 27.9 20.1 13.3 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.2 8.6 12.2 11.4 13.0 14.3 14.8 17.4 14.8 14.3 11.2 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.66 3.92 4.23 5.70 7.54 9.32 9.23 7.20 6.50 4.70 4.22 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 4.33 4.38 4.39 5.57 7.82 9.61 10.24 9.45 6.57 4.98 4.20 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 4.33 4.56 4.54 5.65 8.44 9.30 9.73 8.04 6.33 5.46 4.32 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.8 -6.0 -2.4 0.2 4.6 10.0 13.0 12.0 6.8 -0.2 -5.2 ***** ****** DAY 23 25 1 6 13 25 27 24 27 18 13 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.2 12.4 18.6 22.0 27.8 33.4 36.4 39.6 36.4 29.8 19.8 ***** ****** DAY 2 4 24 30 17 21 25 5 3 2 21 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.0 27.5 8.6 33.0 9.0 16.5 0.0 0.0 3.6 0.0 21.4 ***** ****** DAY 16 5 17 11 4 2 ** ** 29 ** 3 ** MONTHLY TOTAL PRECIPITATION IN MM. 32.0 45.9 21.6 87.5 23.0 31.3 0.0 0.0 5.8 0.0 28.6 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 36.1 51.4 2.1 10.4 NO. OF DAYS WITH PRECIPITATION. 3 5 5 9 5 5 0 0 2 0 4 *** *** NO. OF DAYS PRECIPITATION EQUAL 3 5 5 9 5 5 0 0 2 0 4 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 0 3 0 1 0 0 0 0 1 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 87 76 75 71 72 57 48 55 64 71 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 63 44 45 41 43 37 31 29 34 42 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 76 53 51 51 45 35 27 32 47 55 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 2 0 0 0 0 0 0 0 0 4 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 1 0 0 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 21 25 14 0 0 *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 21 18 12 0 0 0 0 0 0 1 10 *** *** DATE OF START AND END FREEZING START = 18 OCT. END = 29 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.3 3.9 5.3 10.6 17.5 20.2 24.0 24.1 21.5 13.6 6.8 6.5 12.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.6 -0.3 1.0 5.2 11.0 12.9 16.5 15.2 13.3 6.9 0.7 1.7 6.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.2 8.0 9.6 16.1 24.1 27.5 31.5 33.0 29.6 20.2 12.9 11.2 18.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 5.8 8.3 8.6 10.9 13.1 14.6 15.0 17.8 16.3 13.3 12.2 9.5 12.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.30 3.94 4.24 5.26 7.73 7.31 9.59 7.27 6.18 5.48 4.15 4.42 5.74 MEAN OF MIXING RATIO AT 09 GMT. 3.66 4.35 4.61 5.77 7.90 7.94 9.26 7.24 6.74 6.49 4.64 4.55 6.10 MEAN OF MIXING RATIO AT 15 GMT. 3.79 4.61 4.65 5.50 7.52 7.31 10.02 7.88 6.17 6.66 4.73 4.80 6.14 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.4 -7.4 -4.0 -2.0 7.4 8.2 10.4 12.0 8.4 0.0 -4.2 -5.2 -8.4 DAY 20 6 1 4 7 6 15 23 25 29 12 19 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.4 15.0 19.4 24.2 29.0 34.4 37.0 37.2 34.4 28.4 17.0 16.2 37.2 DAY 1 25 30 30 27 29 22 21 1 3 21 27 24 HOUR MAXIMUM PRECIPITATION IN MM. 24.6 25.0 11.0 28.0 10.8 0.0 0.0 3.2 1.0 13.0 8.2 11.6 28.0 DAY 6 2 7 12 11 ** ** 29 3 16 6 28 MONTHLY TOTAL PRECIPITATION IN MM. 66.0 52.6 49.6 77.3 33.4 0.0 0.0 3.2 1.0 19.8 14.8 26.0 343.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 48.9 32.2 1.2 17.6 NO. OF DAYS WITH PRECIPITATION. 9 6 8 9 5 0 0 1 1 4 3 6 52 NO. OF DAYS PRECIPITATION EQUAL 9 6 8 8 5 0 0 1 1 4 3 5 50 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 4 3 0 0 0 0 1 0 1 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 81 82 72 69 54 58 49 50 65 76 78 68 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 64 59 50 44 35 31 23 26 42 46 52 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 74 66 53 44 32 35 27 28 54 62 67 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 13 3 2 0 0 0 0 0 0 0 1 1 20 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 9 3 0 0 0 0 0 0 0 0 0 0 12 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 22 28 18 0 0 0 75 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 24 16 11 2 0 0 0 0 0 1 12 8 74 DATE OF START AND END FREEZING START = 29 OCT. END = 6 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.6 -1.5 2.6 10.9 16.5 21.5 23.9 24.5 19.6 16.1 7.4 4.7 12.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.5 -6.3 -1.0 5.2 9.9 14.0 16.3 15.8 12.1 9.3 2.9 0.5 6.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.8 3.2 6.2 16.7 23.1 29.0 31.5 33.3 27.1 23.0 12.0 8.9 18.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.3 9.5 7.2 11.5 13.2 15.0 15.2 17.5 15.0 13.7 9.1 8.4 12.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.17 2.51 3.49 5.37 7.46 9.07 9.28 8.17 6.55 5.82 5.32 3.95 5.85 MEAN OF MIXING RATIO AT 09 GMT. 3.26 3.10 3.87 4.98 7.38 9.25 9.99 10.19 6.70 6.58 5.56 4.14 6.25 MEAN OF MIXING RATIO AT 15 GMT. 3.23 3.11 3.95 5.34 7.40 8.54 9.29 9.17 7.08 6.47 5.75 4.14 6.12 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.8 -16.4 -8.4 -4.4 4.0 8.4 12.8 10.4 5.0 3.0 -1.0 -6.0 -16.4 DAY 29 2 9 13 2 7 9 17 15 29 27 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 11.8 15.0 28.2 29.4 34.0 36.0 39.0 37.6 28.0 17.0 16.2 39.0 DAY 6 19 31 26 28 22 29 26 2 28 17 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 23.8 19.6 21.4 10.0 24.4 1.6 5.5 0.0 0.0 4.0 19.6 9.0 24.4 DAY 16 27 4 9 22 6 5 ** ** 19 3 1 MONTHLY TOTAL PRECIPITATION IN MM. 68.4 49.2 79.6 32.0 71.8 2.6 5.5 0.0 0.0 6.8 63.2 15.4 394.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.0 27.0 1.4 21.6 NO. OF DAYS WITH PRECIPITATION. 5 8 10 9 8 2 1 0 0 3 6 6 58 NO. OF DAYS PRECIPITATION EQUAL 5 7 10 7 8 2 1 0 0 3 6 5 54 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 2 3 1 2 0 0 0 0 0 2 0 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 75 78 74 72 65 59 55 60 64 88 78 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 63 63 41 42 37 36 33 31 38 59 55 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 70 72 49 46 35 33 31 36 46 73 67 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 13 15 7 1 0 0 0 0 0 0 0 5 41 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 7 8 2 0 0 0 0 0 0 0 0 0 17 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 13 21 25 7 0 0 0 66 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 24 17 5 0 0 0 0 0 0 6 15 89 DATE OF START AND END FREEZING START = 9 NOV. END = 14 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -2.8 -0.4 6.7 12.6 17.1 22.6 23.9 24.7 20.6 14.8 12.1 6.7 13.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.5 -4.2 1.9 6.4 10.5 14.5 16.8 16.6 12.6 7.5 6.4 1.4 7.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.0 3.4 11.5 18.7 23.7 30.7 31.1 32.9 28.6 22.2 17.8 12.1 19.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.5 7.6 9.6 12.3 13.2 16.2 14.3 16.3 16.0 14.7 11.4 10.7 12.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.79 2.90 4.40 6.23 8.31 8.41 10.27 8.77 6.75 4.88 4.89 4.00 6.05 MEAN OF MIXING RATIO AT 09 GMT. 3.35 3.37 4.23 6.21 8.43 8.85 9.98 9.26 7.36 5.42 5.37 4.44 6.35 MEAN OF MIXING RATIO AT 15 GMT. 3.13 3.38 4.29 6.33 8.35 8.63 9.88 8.93 7.83 5.42 5.43 4.14 6.31 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.8 -13.0 -4.4 -1.8 4.0 10.2 13.4 13.0 7.2 2.0 -0.6 -6.0 -15.8 DAY 15 16 26 1 4 4 7 6 28 26 26 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 5.2 11.0 17.4 27.8 29.4 37.0 34.8 38.4 37.8 28.2 22.2 20.6 38.4 DAY 25 7 28 15 11 23 17 30 1 7 3 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.0 10.8 40.0 22.6 6.0 1.4 2.0 0.0 0.0 0.0 15.5 15.5 40.0 DAY 13 7 17 28 12 3 29 ** ** ** 11 30 MONTHLY TOTAL PRECIPITATION IN MM. 51.4 25.2 76.6 53.1 13.5 1.4 2.0 0.0 0.0 0.0 17.5 23.0 263.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 58.1 25.8 0.8 15.4 NO. OF DAYS WITH PRECIPITATION. 12 5 7 8 6 1 1 0 0 0 3 5 48 NO. OF DAYS PRECIPITATION EQUAL 11 5 7 8 3 1 1 0 0 0 3 5 44 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 3 1 0 0 0 0 0 0 1 1 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 80 78 80 79 58 64 59 58 61 66 75 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 78 66 49 46 45 33 35 30 30 32 41 50 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 83 73 55 52 48 33 35 30 37 41 53 58 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 15 1 0 0 0 0 0 0 0 0 4 41 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 2 0 0 0 0 2 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 12 7 0 0 0 0 0 0 0 0 0 0 19 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 17 21 21 11 0 0 0 70 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 25 10 2 0 0 0 0 0 0 1 13 81 DATE OF START AND END FREEZING START = 26 NOV. END = 2 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.1 5.1 6.9 12.4 18.7 22.9 23.1 26.0 20.6 16.2 7.6 3.6 13.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.4 -0.1 1.0 5.7 11.2 14.7 15.7 17.9 12.4 9.4 2.4 -1.6 7.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.6 10.4 12.9 19.1 26.1 31.0 30.5 34.0 28.8 23.0 12.7 8.7 20.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.0 10.5 11.9 13.4 14.9 16.3 14.8 16.1 16.4 13.6 10.3 10.3 13.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.82 3.60 4.02 5.40 5.98 7.11 9.03 8.24 6.25 5.01 4.28 3.61 5.53 MEAN OF MIXING RATIO AT 09 GMT. 4.03 3.80 3.72 4.94 5.64 6.73 8.95 8.63 6.81 5.37 4.41 4.63 5.64 MEAN OF MIXING RATIO AT 15 GMT. 4.23 3.63 3.72 4.92 5.36 5.91 8.36 8.03 6.36 5.36 4.44 4.17 5.37 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.4 -5.0 -4.4 0.4 4.0 2.8 12.4 11.0 6.0 1.4 -6.0 -6.4 -6.4 DAY 27 2 28 10 21 13 28 31 28 11 30 2 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.2 15.0 18.4 26.2 34.6 35.2 37.0 38.0 35.4 29.8 19.8 16.0 38.0 DAY 30 2 8 28 30 24 31 12 3 4 18 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 32.0 7.0 6.0 12.0 0.0 0.0 3.5 5.4 0.0 9.0 0.0 0.0 32.0 DAY 9 20 25 1 ** ** 16 17 ** 31 ** ** MONTHLY TOTAL PRECIPITATION IN MM. 44.6 16.0 10.2 20.2 0.0 0.0 6.5 6.4 0.0 11.4 0.0 0.0 115.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 61.4 17.5 11.2 9.9 NO. OF DAYS WITH PRECIPITATION. 7 4 3 3 0 0 2 2 0 2 0 0 23 NO. OF DAYS PRECIPITATION EQUAL 7 4 3 3 0 0 2 2 0 2 0 0 23 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 1 0 0 0 0 0 0 0 0 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 90 76 75 73 53 46 59 50 53 53 76 84 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 49 41 37 29 25 32 28 29 32 48 64 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 56 46 40 29 22 30 26 31 40 60 72 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 8 4 2 0 0 0 0 0 0 0 3 10 27 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 4 0 0 0 0 4 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 6 22 23 31 14 0 0 0 96 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 21 15 17 0 0 0 0 0 0 0 6 23 82 DATE OF START AND END FREEZING START = 3 NOV. END = 30 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.2 1.8 5.9 14.7 18.2 21.6 25.9 25.0 20.7 13.5 6.4 3.4 13.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.6 -3.4 0.1 8.6 11.1 13.3 17.4 16.7 12.6 6.8 1.1 -0.3 6.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.9 6.9 11.7 20.8 25.4 29.9 34.3 33.3 28.9 20.2 11.7 7.2 19.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.5 10.3 11.6 12.2 14.3 16.6 16.9 16.6 16.3 13.4 10.6 7.5 12.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.04 2.77 3.38 5.58 6.20 6.36 8.34 7.32 5.34 5.08 4.40 4.06 5.16 MEAN OF MIXING RATIO AT 09 GMT. 3.38 3.14 3.41 5.65 6.14 6.84 8.02 7.80 6.84 5.69 4.55 4.53 5.50 MEAN OF MIXING RATIO AT 15 GMT. 3.34 2.87 3.44 5.23 5.37 6.03 8.04 7.90 6.17 5.63 4.69 4.44 5.26 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -10.8 -8.8 2.4 2.2 7.4 13.8 11.0 9.4 1.0 -5.0 -5.0 -11.0 DAY 17 8 16 11 13 14 23 5 25 4 17 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.4 14.0 19.0 26.0 30.4 35.4 38.4 38.0 33.6 27.0 17.0 12.6 38.4 DAY 3 24 31 14 31 29 21 3 6 10 12 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.5 6.4 21.0 16.4 5.8 0.0 0.0 0.0 0.0 4.6 8.0 17.2 21.0 DAY 15 12 23 29 9 ** ** ** ** 25 19 21 MONTHLY TOTAL PRECIPITATION IN MM. 28.8 7.0 49.2 45.3 9.8 0.0 0.0 0.0 0.0 11.6 14.0 50.7 216.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 39.3 25.5 0.0 35.3 NO. OF DAYS WITH PRECIPITATION. 8 2 4 6 3 0 0 0 0 4 4 7 38 NO. OF DAYS PRECIPITATION EQUAL 8 1 4 6 3 0 0 0 0 4 4 7 37 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 2 2 0 0 0 0 0 0 0 2 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 73 68 63 56 46 50 47 46 67 81 86 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 51 40 38 31 27 24 25 28 41 51 68 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 55 45 37 28 23 25 26 28 48 64 78 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 11 13 6 0 0 0 0 0 0 0 1 3 34 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 3 0 0 0 0 5 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 4 1 0 0 0 0 0 0 0 0 0 0 5 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 16 30 29 11 0 0 0 88 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 23 25 16 0 0 0 0 0 0 0 14 17 95 DATE OF START AND END FREEZING START = 7 NOV. END = 27 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.4 3.4 ***** 14.5 17.2 22.1 23.9 25.8 22.1 15.4 7.8 5.6 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -3.7 -1.2 ***** 7.9 9.6 13.6 16.0 17.1 14.2 8.4 2.7 2.1 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.6 8.0 ***** 21.2 24.8 30.5 31.8 34.5 30.0 22.4 12.9 9.1 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.3 9.2 ***** 13.3 15.2 16.9 15.8 17.4 15.8 14.0 10.2 7.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.23 3.46 ***** 5.25 6.07 6.04 9.17 6.79 5.21 4.62 4.14 4.29 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.67 4.26 ***** 5.06 5.85 5.99 8.55 7.80 6.04 5.09 4.56 4.61 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.47 4.02 ***** 4.92 5.47 5.37 8.01 6.28 6.01 4.73 4.37 4.57 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.4 -14.2 ***** 3.0 5.0 8.0 11.4 11.4 9.0 3.0 -9.8 -7.0 ****** DAY 31 1 ** 16 17 1 19 13 30 27 20 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 16.2 ***** 26.6 31.6 38.0 35.6 39.4 34.4 29.8 23.0 15.0 ****** DAY 14 28 ** 2 28 22 31 2 4 5 6 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 15.0 9.0 ***** 6.0 6.6 0.0 2.0 0.0 0.0 2.0 20.0 15.1 ****** DAY 24 10 ** 7 3 ** 21 ** ** 27 18 4 MONTHLY TOTAL PRECIPITATION IN MM. 30.9 24.9 ***** 16.4 13.0 0.0 5.2 0.0 0.0 2.0 38.9 57.7 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 29.5 15.6 2.8 52.2 NO. OF DAYS WITH PRECIPITATION. 5 4 *** 4 2 0 3 0 0 1 5 9 *** NO. OF DAYS PRECIPITATION EQUAL 5 4 *** 4 2 0 3 0 0 1 5 9 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 *** 0 0 0 0 0 0 0 1 3 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 78 *** 62 58 42 60 42 41 52 69 76 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 66 61 *** 33 31 23 30 25 23 31 49 62 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 68 *** 35 31 20 27 20 26 35 56 69 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 14 2 *** 0 0 0 0 0 0 0 3 4 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 *** 0 0 0 2 1 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 7 0 *** 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** 0 2 17 26 30 19 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 23 19 *** 0 0 0 0 0 0 0 7 8 *** DATE OF START AND END FREEZING START = 19 NOV. END = 28 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.3 3.7 8.4 11.8 15.9 20.7 24.1 23.5 21.8 17.1 8.0 -0.3 12.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.3 -1.4 2.2 7.0 9.1 12.6 16.3 15.0 13.0 10.0 2.4 -3.2 6.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.7 8.9 14.6 16.6 22.7 28.7 31.9 32.0 30.7 24.2 13.5 2.6 19.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.0 10.3 12.4 9.6 13.6 16.1 15.6 17.0 17.7 14.2 11.1 5.8 12.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.87 3.24 3.77 5.20 6.56 6.70 8.16 6.97 5.16 5.54 4.12 3.11 5.12 MEAN OF MIXING RATIO AT 09 GMT. 3.52 3.85 3.87 5.27 6.89 6.75 8.31 7.58 6.49 6.41 4.34 3.62 5.57 MEAN OF MIXING RATIO AT 15 GMT. 3.34 3.81 4.04 5.32 6.43 6.21 7.92 6.88 5.97 6.25 4.38 3.56 5.34 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.4 -7.0 -5.0 3.4 5.0 7.0 12.6 10.0 11.0 4.5 -3.2 -12.0 -12.0 DAY 25 4 1 1 1 2 2 31 10 26 17 15 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.2 14.0 22.0 21.4 30.4 35.0 37.2 36.0 33.4 31.2 21.4 11.4 37.2 DAY 2 22 26 28 28 27 23 5 4 9 9 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.5 10.0 30.0 19.4 11.5 0.0 0.5 0.0 0.0 2.0 8.0 24.8 30.0 DAY 23 12 18 18 4 ** 26 ** ** 5 1 21 MONTHLY TOTAL PRECIPITATION IN MM. 40.4 23.0 52.1 53.9 43.5 0.0 0.5 0.0 0.0 5.5 25.6 96.9 341.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 33.8 28.5 0.1 37.5 NO. OF DAYS WITH PRECIPITATION. 5 3 6 8 8 0 1 0 0 4 5 11 51 NO. OF DAYS PRECIPITATION EQUAL 5 3 6 7 7 0 0 0 0 3 5 10 46 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 2 2 2 0 0 0 0 0 0 4 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 71 66 64 68 50 50 49 42 56 71 79 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 66 52 37 44 42 27 29 26 24 33 44 72 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 62 45 49 42 26 27 24 25 42 53 78 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 13 2 0 0 0 0 0 0 0 0 13 48 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 8 0 0 0 0 0 0 0 0 0 0 13 21 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 10 24 25 21 3 0 0 85 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 25 17 9 0 0 0 0 0 0 0 10 23 84 DATE OF START AND END FREEZING START = 16 NOV. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.8 2.7 5.3 12.4 16.5 20.8 23.9 24.3 20.0 17.4 7.3 2.6 12.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.7 -1.1 1.2 7.2 9.7 13.8 16.3 16.1 12.1 10.4 2.7 -0.3 7.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.3 6.4 9.4 17.5 23.2 27.9 31.5 32.5 27.9 24.5 11.9 5.4 18.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.0 7.5 8.2 10.3 13.5 14.1 15.2 16.4 15.8 14.1 9.2 5.7 11.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.45 3.46 4.00 5.44 6.56 8.13 9.06 8.01 6.20 5.43 4.59 3.96 5.69 MEAN OF MIXING RATIO AT 09 GMT. 3.82 3.69 4.09 5.65 6.95 8.90 9.14 9.35 6.91 5.64 4.76 4.27 6.10 MEAN OF MIXING RATIO AT 15 GMT. 3.82 3.79 4.11 5.63 6.51 8.27 8.82 8.69 6.48 5.35 4.97 4.32 5.90 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.8 -7.4 -6.4 -2.0 2.0 7.4 12.4 12.4 8.0 6.0 -3.0 -7.6 -9.8 DAY 29 14 2 1 1 6 30 15 23 7 24 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.6 11.6 15.0 23.4 28.0 32.6 36.6 39.6 36.0 29.8 18.0 13.8 39.6 DAY 8 8 17 5 16 24 13 12 5 9 2 18 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.5 9.0 26.4 30.4 4.0 16.2 0.0 0.0 0.0 13.5 0.0 19.5 30.4 DAY 16 4 20 16 31 15 ** ** ** 29 ** 6 MONTHLY TOTAL PRECIPITATION IN MM. 11.1 46.4 108.0 97.9 16.5 17.6 0.0 0.0 0.0 20.9 0.0 56.5 374.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.1 35.2 0.0 20.6 NO. OF DAYS WITH PRECIPITATION. 3 11 10 9 9 2 0 0 0 5 0 9 58 NO. OF DAYS PRECIPITATION EQUAL 3 10 10 9 9 2 0 0 0 5 0 9 57 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 5 4 0 1 0 0 0 1 0 2 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 78 76 67 66 62 58 54 56 54 77 83 68 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 59 54 46 38 38 32 31 31 29 52 70 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 68 57 50 41 36 29 29 31 34 65 79 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 10 6 3 0 0 0 0 0 0 0 0 9 28 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 2 0 0 0 0 3 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 4 7 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 11 23 26 9 0 0 0 69 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 18 9 2 0 0 0 0 0 0 9 15 75 DATE OF START AND END FREEZING START = 15 NOV. END = 2 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE PERIOD 1964 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. -1.5 0.6 5.6 10.8 15.8 20.1 23.6 23.7 19.9 14.1 7.2 2.3 11.9 SD OF MEAN DAILY TEMPERATURE IN C. 4.02 4.08 2.76 2.29 2.06 2.48 1.11 1.25 2.35 2.61 2.72 2.62 2.53 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.9 -4.1 0.4 4.8 8.6 11.6 15.0 14.8 11.3 6.6 1.3 -2.1 5.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.5 5.0 10.7 16.9 23.0 28.6 32.3 32.6 28.5 21.5 13.2 6.7 18.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.7 9.5 10.4 12.1 14.4 17.0 17.3 17.8 17.2 14.9 11.8 8.8 13.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.76 3.04 4.04 5.26 6.74 7.69 8.88 8.50 6.71 5.44 4.25 3.53 5.56 MEAN OF MIXING RATIO AT 09 GMT. 3.35 3.76 4.68 6.14 7.75 9.20 11.01 10.85 8.63 6.54 5.15 4.12 6.76 MEAN OF MIXING RATIO AT 15 GMT. 3.20 3.59 4.47 5.85 7.39 8.51 10.33 9.98 7.88 6.23 4.95 3.96 6.36 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -26.0 -30.0 -14.0 -9.0 0.0 0.0 6.0 6.0 -10.0 -10.0 -15.0 -21.5 -30.0 YEAR - DAY 73- 7 68- 2 72-11 80-16 81- 3 81- 1 66- 6 68-20 80-28 80-25 67-29 72-24 68- 2 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 28.0 25.0 29.5 34.6 38.0 42.0 40.0 38.0 32.0 30.0 20.6 42.0 YEAR - DAY 66- 6 81-19 81- 8 70-13 99-30 64- 5 79- 7 73- 3 64-16 64- 3 74-15 98-10 79- 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 40.0 127.0 62.0 51.0 51.0 42.0 5.5 5.4 16.0 35.0 41.4 32.0 127.0 YEAR - DAY 82-28 64- 3 93- 8 69- 2 81-22 81-17 97- 5 99-17 80-13 66-22 93- 1 68-27 64- 3 MONTHLY TOTAL PRECIPITATION IN MM. 60.4 47.7 70.8 84.9 57.7 15.6 0.7 0.6 4.8 27.5 40.5 42.2 453.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 39.5 34.9 1.3 24.3 NO. OF DAYS WITH PRECIPITATION. 8 5 8 9 6 1 0 0 1 3 5 6 52 NO. OF DAYS PRECIPITATION EQUAL 7 5 8 9 6 1 0 0 1 3 5 6 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 3 3 2 1 0 0 0 1 2 2 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 76 74 70 67 58 55 54 55 62 71 76 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 66 58 51 46 39 37 36 35 41 54 65 50 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 70 62 55 49 39 38 36 38 47 60 71 53 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 12 5 0 0 0 0 0 0 0 4 10 48 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 1 0 0 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 11 6 1 0 0 0 0 0 0 0 0 3 21 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 14 25 27 13 1 0 0 81 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 22 14 3 0 0 0 0 1 2 11 21 100 DATE OF START AND END FREEZING START = 9 SEP. END = 22 JUNE IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION MAHABAD LATITUDE 36 50 N DATA PROCESSING CENTER LONGITUDE 45 45 E ELEVATION 1333 MET. MEAN AND EXTREMES FOR THE PERIOD 1964 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. -1.4 0.7 6.1 11.6 17.0 22.1 25.7 25.6 21.4 15.1 7.7 2.7 12.9 AVERAGE DEW POINT TEMPERATURE. IN C. -6.1 -4.6 -0.8 3.0 6.5 8.5 11.0 10.4 6.9 3.5 0.1 -2.7 3.0 AVERAGE OF MIXING RATIO IN G/KG 3.11 3.46 4.39 5.74 7.29 8.46 10.07 9.77 7.74 6.07 4.78 3.86 6.23 AVERAGE OF VAPOUR PRESSURE HPA 4.27 4.76 6.05 7.91 10.05 11.66 13.86 13.45 10.67 8.37 6.58 5.31 8.58 AVERAGE OF SATURATION DEFICIT IN HPA 1.70 2.29 3.93 6.55 10.43 16.50 20.63 21.11 16.53 9.94 4.67 2.50 9.73 AVERAGE RELATIVE HUMIDITY IN PERCENT 73 71 65 59 54 45 43 42 43 50 62 70 56 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 81 80 77 73 69 60 57 56 57 64 74 80 69 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 65 61 54 48 41 35 33 31 32 38 50 61 46 NO. OF DAYS PRECIPITATION EQUAL 4 3 5 5 4 1 0 0 0 2 3 3 30 OR MORE THAN 5 MM.