IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1964 ****** ****** ****** ****** ****** 24.2 28.5 25.7 24.3 17.6 11.1 5.7 ****** 1965 2.8 6.0 10.2 11.1 20.3 24.9 27.4 28.9 24.2 16.4 12.0 7.3 26.1 1966 8.4 6.7 8.4 13.4 19.3 25.4 27.5 28.1 23.7 16.9 14.8 7.8 21.4 1967 4.4 2.5 6.3 11.3 18.4 22.2 27.0 26.5 22.9 17.5 10.4 5.4 24.5 1968 3.7 4.1 9.3 13.1 18.4 22.3 27.6 ****** 22.0 18.4 11.2 6.7 ****** 1969 3.7 5.3 11.5 11.6 18.7 23.9 26.1 25.9 23.2 19.0 10.4 8.1 22.4 1970 4.4 6.8 9.4 16.0 18.7 23.8 25.8 24.7 22.5 17.2 13.6 5.0 21.4 1971 6.6 4.3 10.3 11.4 19.2 22.6 26.2 24.7 23.3 16.4 10.3 4.3 21.9 1972 2.1 2.6 7.3 13.8 15.3 21.4 22.9 22.6 21.7 19.0 10.0 2.5 20.8 1973 1.9 7.3 7.9 13.2 18.8 23.5 26.6 28.4 23.4 19.5 10.3 6.4 26.5 1974 2.1 3.1 9.4 13.0 19.7 24.8 26.8 26.2 23.1 21.4 14.7 6.1 24.7 1975 4.8 4.8 10.1 16.5 20.3 27.3 30.3 29.7 26.7 18.8 11.4 5.5 25.5 1976 5.4 6.2 7.6 14.9 20.9 27.3 28.5 28.5 23.1 18.4 13.1 9.3 23.1 1977 2.2 10.8 11.5 13.9 20.2 26.1 28.6 29.4 25.1 17.1 11.5 7.5 27.2 1978 6.7 8.1 10.7 14.8 20.5 24.5 29.7 28.1 26.1 20.2 8.2 8.7 23.0 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 3.5 5.3 6.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 5.4 5.9 9.8 14.3 ****** ****** ****** 28.2 23.7 18.8 11.4 9.0 ****** 1982 5.3 1.6 ****** 14.7 21.4 25.3 26.9 26.9 24.6 15.4 8.1 4.4 ****** 1983 2.5 5.0 7.0 13.4 20.3 25.8 28.5 26.6 ****** ****** 13.3 7.1 ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** 18.9 24.1 30.6 30.3 26.7 20.3 8.8 5.0 ****** 1987 7.5 8.6 7.5 14.2 22.2 26.2 29.2 28.5 24.8 17.4 12.2 5.9 23.3 1988 4.6 5.1 9.3 14.5 20.8 25.3 29.3 28.2 24.8 19.6 11.5 6.7 24.7 1989 1.4 3.3 9.1 16.4 21.8 26.2 30.8 29.0 24.4 20.2 11.3 6.4 29.4 1990 2.2 4.1 9.6 13.5 21.7 26.5 30.4 28.4 25.7 19.0 14.2 8.7 28.2 1991 5.0 4.8 9.2 16.4 19.5 26.9 29.0 28.8 25.5 18.1 13.0 5.5 24.2 1992 0.6 1.3 4.7 12.7 18.1 24.5 28.7 28.2 24.5 18.8 11.1 4.5 28.1 1993 3.4 5.1 8.2 13.5 18.3 25.1 29.8 28.6 25.9 19.3 10.7 9.1 26.4 1994 7.1 5.6 9.8 17.3 20.9 25.9 28.6 28.1 25.4 19.0 10.9 3.9 24.7 1995 7.2 6.7 10.1 13.7 21.1 25.7 28.8 29.7 24.4 18.6 12.1 5.7 24.0 1996 5.1 7.6 7.9 14.0 22.2 26.1 30.8 30.0 25.5 18.7 12.9 9.3 25.7 1997 5.9 3.4 6.0 13.2 20.9 26.3 28.7 28.5 24.5 19.3 11.2 6.6 25.3 1998 2.7 5.4 8.1 15.6 21.0 28.3 29.8 31.4 25.7 20.1 15.4 12.2 28.7 1999 6.5 7.8 10.1 15.6 23.0 27.1 29.6 31.4 25.0 20.9 11.7 9.7 24.9 2000 4.1 5.9 9.3 17.7 21.5 26.4 31.6 30.4 24.5 17.6 10.8 7.1 27.5 MEAN 4.4 5.4 8.8 14.2 20.1 25.2 28.5 28.1 24.4 18.6 11.6 6.8 24.1 SD 2.00 2.09 1.62 1.70 1.60 1.63 1.83 1.95 1.28 1.37 1.75 2.03 1.74 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1964 ****** ****** ****** ****** ****** 15.0 19.9 15.4 15.2 9.1 4.6 0.2 ****** 1965 -1.5 0.3 4.6 5.8 13.7 17.5 19.3 20.8 16.5 10.5 5.7 0.9 9.5 1966 2.6 1.5 2.7 7.0 11.9 16.8 19.4 20.3 16.3 11.0 7.6 1.5 9.9 1967 -0.5 -2.0 0.6 5.0 12.5 14.0 18.7 18.2 14.9 10.8 5.8 -0.0 8.2 1968 -0.9 -0.7 3.6 7.9 11.9 14.1 19.3 ****** 13.0 10.4 5.3 1.2 ****** 1969 -1.0 -0.2 5.4 6.0 11.2 15.4 16.6 16.5 14.0 11.1 3.0 1.4 8.3 1970 -0.7 0.0 3.1 8.8 10.6 14.6 17.5 15.6 13.4 8.6 6.6 -1.0 8.1 1971 0.9 -0.7 4.1 5.5 12.0 14.0 18.0 16.7 14.9 8.1 4.2 -1.3 8.0 1972 -3.1 -3.3 2.4 7.5 8.4 12.5 11.6 11.9 13.0 10.4 2.5 -3.4 5.9 1973 -5.1 0.8 0.5 6.1 11.1 14.9 18.0 20.1 14.4 11.8 3.5 0.5 8.1 1974 -3.7 -1.6 5.4 6.5 12.2 17.2 18.8 18.1 15.4 13.0 7.1 0.3 9.1 1975 -0.5 -0.3 2.8 9.0 13.1 18.9 21.7 21.0 17.8 10.8 4.4 0.1 9.9 1976 -0.6 0.3 1.0 8.1 12.7 17.5 17.9 18.6 12.4 9.6 7.7 4.9 9.2 1977 -2.4 5.3 6.4 8.0 14.2 19.4 22.1 22.8 18.5 11.7 5.8 2.7 11.2 1978 1.4 3.4 5.5 8.8 14.6 18.0 22.8 20.9 20.0 14.5 3.3 4.4 11.5 1979 2.2 4.9 5.2 12.1 15.0 19.6 23.0 23.0 20.8 14.0 10.4 0.9 12.6 1980 -1.6 -0.6 0.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 -0.3 1.3 4.3 8.3 10.8 18.3 ****** 21.8 15.9 13.1 5.2 4.0 ****** 1982 0.7 -3.0 ****** 10.1 16.2 18.9 20.5 20.1 18.5 10.0 3.9 -0.1 ****** 1983 -1.6 0.8 2.6 8.6 15.3 19.9 21.7 19.8 ****** ****** 8.2 2.5 ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** 13.2 17.5 24.2 24.6 20.5 15.0 4.7 0.9 ****** 1987 1.6 3.8 3.6 8.5 16.4 19.2 22.5 22.1 18.6 12.5 6.7 1.8 11.4 1988 0.8 0.8 5.3 9.2 14.4 18.6 22.0 20.9 18.0 14.2 6.5 2.3 11.1 1989 -3.0 -1.1 4.4 10.8 16.1 19.4 23.9 22.2 17.8 14.7 6.8 2.1 11.2 1990 -1.3 -0.0 4.5 8.0 15.4 19.4 24.7 21.9 19.1 13.7 9.2 4.4 11.6 1991 1.4 0.7 5.1 11.1 13.7 21.0 22.3 22.4 19.5 13.2 8.3 1.8 11.7 1992 -2.7 -1.9 0.8 8.0 13.2 19.0 22.5 22.7 18.8 12.9 6.8 1.1 10.1 1993 -0.4 1.0 3.7 9.1 13.5 19.1 24.1 22.6 19.8 14.1 6.5 4.9 11.5 1994 3.3 1.5 5.4 12.3 15.5 20.1 22.3 21.6 20.0 14.6 7.1 0.1 12.0 1995 2.9 2.6 5.6 9.0 16.1 20.0 22.8 23.1 18.3 13.0 6.9 1.4 11.8 1996 1.7 3.8 4.2 9.3 16.7 20.2 25.6 24.2 19.8 13.4 8.7 5.5 12.7 1997 2.0 -1.3 1.7 8.5 15.8 20.7 22.5 22.0 18.6 14.4 7.1 2.7 11.2 1998 -1.1 1.2 3.4 10.5 15.4 22.3 23.8 25.6 19.7 14.1 10.0 7.6 12.7 1999 2.4 3.0 5.6 10.2 17.0 20.8 23.9 25.7 18.6 15.7 7.0 4.7 12.9 2000 -0.2 0.9 3.7 12.6 15.4 19.6 25.8 24.0 17.9 12.1 6.0 3.0 11.7 MEAN -0.3 0.6 3.7 8.6 13.8 18.1 21.2 20.8 17.3 12.3 6.3 1.9 10.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1964 ****** ****** ****** ****** ****** 33.4 37.2 36.1 33.4 26.1 17.6 11.2 ****** 1965 7.1 11.8 15.7 16.4 27.0 32.2 35.5 37.1 31.9 22.3 18.2 13.8 22.4 1966 14.2 11.9 14.2 19.8 26.7 34.0 35.6 35.9 31.2 22.9 21.9 14.0 23.5 1967 9.3 7.0 11.9 17.7 24.3 30.4 35.4 34.8 30.9 24.2 15.0 10.7 21.0 1968 8.3 9.0 15.0 18.4 24.9 30.5 36.1 34.1 31.5 26.4 17.1 12.2 22.0 1969 8.5 10.8 17.5 17.3 26.1 32.4 35.6 35.3 32.4 26.8 17.7 14.7 22.9 1970 9.4 13.7 15.7 23.2 26.7 32.9 34.1 33.9 31.6 25.8 20.6 10.9 23.2 1971 12.3 9.3 16.5 17.4 26.5 31.2 34.5 32.7 31.7 24.8 16.4 9.9 21.9 1972 7.4 8.4 12.3 20.0 22.2 30.2 34.1 33.3 30.3 27.6 17.6 8.3 21.0 1973 8.8 13.8 15.2 20.3 26.5 32.1 35.1 36.7 32.4 27.3 17.2 12.3 23.1 1974 7.7 7.8 13.5 19.4 27.1 32.4 34.8 34.3 30.8 29.8 22.2 11.9 22.6 1975 10.1 9.9 17.3 23.9 27.4 35.7 38.9 38.3 35.7 26.8 18.3 10.8 24.4 1976 11.3 12.1 14.3 21.6 29.2 37.0 39.0 38.3 33.8 27.1 18.5 13.8 24.7 1977 6.8 16.4 16.7 19.9 26.2 32.8 35.1 36.0 31.7 22.4 17.1 12.6 22.8 1978 11.9 12.9 15.9 20.7 26.4 31.0 36.5 35.2 32.2 25.6 13.1 13.0 22.9 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 8.6 11.2 14.6 21.1 26.4 32.9 37.1 34.4 30.9 24.3 18.0 14.6 22.8 1981 11.2 10.5 15.4 20.3 ****** ****** ****** 34.6 31.6 24.6 17.5 13.9 ****** 1982 9.8 6.0 ****** 19.3 26.7 31.8 33.2 33.6 30.6 21.3 12.5 8.9 ****** 1983 6.9 9.1 11.5 18.1 25.3 31.7 35.3 33.6 ****** ****** 18.5 11.7 ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** 19.7 24.5 30.7 36.9 36.0 32.9 25.6 12.9 9.1 ****** 1987 12.7 13.4 11.5 19.9 28.0 33.2 35.9 34.9 31.1 22.3 17.9 10.1 22.6 1988 8.4 9.4 13.2 19.9 27.2 32.0 36.6 35.5 31.7 25.1 16.5 11.1 22.2 1989 5.8 7.6 13.8 22.1 27.4 33.0 37.7 35.8 30.9 25.7 15.8 10.7 22.2 1990 5.6 8.3 14.8 19.0 28.1 33.6 36.1 34.8 32.3 24.2 19.2 13.1 22.4 1991 8.7 9.0 13.3 21.7 25.2 32.8 35.6 35.1 31.5 22.9 17.7 9.2 21.9 1992 3.9 4.6 8.6 17.3 23.1 30.0 34.9 33.6 30.3 24.7 15.4 7.9 19.5 1993 7.2 9.1 12.7 18.0 23.1 31.0 35.6 34.6 31.9 24.4 15.0 13.4 21.3 1994 10.9 9.7 14.2 22.2 26.4 31.7 34.8 34.5 30.8 23.4 14.6 7.7 21.7 1995 11.6 10.8 14.5 18.4 26.2 31.3 34.8 36.4 30.5 24.2 17.3 9.9 22.2 1996 8.5 11.4 11.7 18.7 27.7 32.1 36.1 35.8 31.1 24.0 17.2 13.2 22.3 1997 9.8 8.2 10.3 17.8 26.1 31.9 34.9 35.1 30.3 24.2 15.3 10.5 21.2 1998 6.6 9.5 12.8 20.8 26.6 34.3 35.9 37.1 31.7 26.1 20.8 16.8 23.3 1999 10.6 12.6 14.6 21.0 29.1 33.3 35.4 37.1 31.3 26.1 16.5 14.6 23.5 2000 8.4 10.9 15.0 22.9 27.7 33.1 37.5 36.7 31.0 23.1 15.6 11.2 22.8 MEAN 9.0 10.2 14.0 19.8 26.3 32.4 35.8 35.3 31.6 24.9 17.1 11.7 22.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1964 ****** ****** ****** ****** ****** 18.4 17.3 20.7 18.2 17.0 13.0 11.0 ****** 1965 8.6 11.5 11.1 10.6 13.3 14.7 16.2 16.3 15.4 11.8 12.5 12.9 12.9 1966 11.6 10.4 11.5 12.7 14.8 17.2 16.2 15.6 14.9 11.9 14.3 12.5 13.6 1967 9.8 9.0 11.3 12.7 11.8 16.4 16.7 16.6 16.0 13.4 9.2 10.7 12.8 1968 9.2 9.7 11.4 10.5 13.0 16.4 16.8 ****** 18.5 16.0 11.9 11.0 ****** 1969 9.5 11.0 12.1 11.3 14.9 17.0 19.0 18.8 18.4 15.7 14.7 13.3 14.6 1970 10.1 13.7 12.6 14.4 16.1 18.3 16.6 18.3 18.2 17.2 14.0 11.9 15.1 1971 11.4 10.0 12.4 11.9 14.5 17.2 16.5 16.0 16.8 16.7 12.2 11.2 13.9 1972 10.5 11.7 9.9 12.5 13.8 17.7 22.5 21.4 17.3 17.2 15.1 11.7 15.1 1973 13.9 12.9 14.7 14.2 15.4 17.2 17.1 16.6 18.0 15.5 13.7 11.8 15.1 1974 11.4 9.4 8.1 12.9 14.9 15.2 16.0 16.2 15.4 16.8 15.1 11.6 13.6 1975 10.6 10.2 14.5 14.9 14.3 16.8 17.2 17.3 18.0 16.0 13.9 10.7 14.5 1976 11.9 11.8 13.3 13.5 16.5 19.5 21.1 19.7 21.3 17.5 10.8 8.9 15.5 1977 9.2 11.1 10.3 11.9 12.0 13.4 13.0 13.2 13.2 10.7 11.3 9.9 11.6 1978 10.5 9.5 10.4 11.9 11.8 13.0 13.7 14.3 12.2 11.1 9.8 8.6 11.4 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 10.2 11.8 14.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 11.5 9.2 11.1 12.0 ****** ****** ****** 12.8 15.7 11.5 12.3 9.9 ****** 1982 9.1 9.0 ****** 9.2 10.5 12.9 12.7 13.5 12.1 11.3 8.6 9.0 ****** 1983 8.5 8.3 8.9 9.5 10.0 11.8 13.6 13.8 ****** ****** 10.3 9.2 ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** 11.3 13.2 12.7 11.4 12.4 10.6 8.2 8.2 ****** 1987 11.1 9.6 7.9 11.4 11.6 14.0 13.4 12.8 12.5 9.8 11.2 8.3 11.1 1988 7.6 8.6 7.9 10.7 12.8 13.4 14.6 14.6 13.7 10.9 10.0 8.8 11.1 1989 8.8 8.7 9.4 11.3 11.3 13.6 13.8 13.6 13.1 11.0 9.0 8.6 11.0 1990 6.9 8.3 10.3 11.0 12.7 14.2 11.4 12.9 13.2 10.5 10.0 8.7 10.8 1991 7.3 8.3 8.2 10.6 11.5 11.8 13.3 12.7 12.0 9.7 9.4 7.4 10.2 1992 6.6 6.5 7.8 9.3 9.9 11.0 12.4 10.9 11.5 11.8 8.6 6.8 9.4 1993 7.6 8.1 9.0 8.9 9.6 11.9 11.5 12.0 12.1 10.3 8.5 8.5 9.8 1994 7.6 8.2 8.8 9.9 10.9 11.6 12.5 12.9 10.8 8.8 7.5 7.6 9.8 1995 8.7 8.2 8.9 9.4 10.1 11.3 12.0 13.3 12.2 11.2 10.4 8.5 10.3 1996 6.8 7.6 7.5 9.4 11.0 11.9 10.5 11.6 11.3 10.6 8.5 7.7 9.5 1997 7.8 9.5 8.6 9.3 10.3 11.2 12.4 13.1 11.7 9.8 8.2 7.8 10.0 1998 7.7 8.3 9.4 10.3 11.2 12.0 12.1 11.5 12.0 12.0 10.8 9.2 10.5 1999 8.2 9.6 9.0 10.8 12.1 12.5 11.5 11.4 12.7 10.4 9.5 9.9 10.6 2000 8.6 10.0 11.3 10.3 12.3 13.5 11.7 12.7 13.1 11.0 9.6 8.2 11.0 MEAN 9.3 9.7 10.4 11.3 12.5 14.4 14.6 14.6 14.5 12.7 11.0 9.7 12.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1964 ****** ****** ****** ****** ****** 5.95 6.06 5.71 4.44 3.50 3.90 3.37 ****** 1965 3.58 2.93 3.94 4.99 5.58 4.79 5.34 6.30 5.13 7.10 5.04 3.57 4.86 1966 3.84 4.17 3.88 5.27 5.75 4.47 5.37 5.34 4.69 5.65 3.83 3.33 4.63 1967 3.52 3.24 3.44 4.62 6.91 5.46 5.92 6.46 5.58 6.35 5.66 3.66 5.07 1968 3.48 3.61 4.38 5.68 7.78 6.86 6.82 5.71 5.76 5.14 5.84 4.41 5.46 1969 3.99 4.03 5.46 5.93 7.57 7.07 6.67 7.07 6.41 6.63 4.49 4.18 5.79 1970 3.93 3.80 4.37 5.51 5.94 6.03 7.78 6.88 5.69 4.86 4.58 3.66 5.25 1971 3.40 3.77 4.62 5.75 8.00 7.87 8.78 8.96 7.11 5.11 5.56 3.82 6.06 1972 3.47 3.45 4.90 7.21 7.86 9.01 8.18 8.98 7.06 5.54 4.64 3.22 6.13 1973 2.91 4.32 4.17 5.68 6.43 7.40 7.71 7.46 5.90 5.21 4.08 4.15 5.45 1974 3.24 3.64 5.56 5.51 6.87 7.79 6.60 7.64 7.09 6.08 5.18 4.11 5.78 1975 3.69 4.14 4.45 6.94 7.95 7.77 7.90 10.37 7.69 5.59 5.08 4.19 6.31 1976 3.92 3.89 4.62 6.95 8.32 8.75 9.21 8.92 8.56 5.94 3.87 4.19 6.43 1977 3.35 3.60 4.49 5.14 6.84 6.71 5.72 5.91 6.71 6.12 4.98 4.50 5.34 1978 4.24 4.60 4.57 4.76 5.25 6.49 10.62 5.15 6.07 6.18 3.78 4.76 5.54 1979 4.07 4.94 4.47 5.77 8.06 8.44 12.28 13.38 10.36 7.07 5.46 3.82 7.34 1980 3.55 3.88 4.41 5.58 5.77 6.11 7.37 6.48 5.70 5.54 5.99 4.07 5.37 1981 3.62 3.84 4.68 4.84 5.63 11.18 ****** 10.69 7.70 7.15 4.35 4.11 ****** 1982 3.70 3.10 ****** 6.20 7.37 8.25 9.46 8.08 7.05 5.82 3.53 3.39 ****** 1983 3.10 3.24 4.21 5.10 7.45 10.60 11.39 8.88 ****** ****** 4.66 4.02 ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 2.76 3.75 4.76 4.19 5.50 4.15 5.34 4.72 4.35 5.78 4.01 3.89 4.43 1988 3.73 4.04 4.86 4.72 4.94 3.78 5.62 6.57 4.25 5.13 4.02 3.79 4.62 1989 3.32 2.97 4.71 5.27 4.79 3.89 4.08 4.54 3.64 4.59 5.53 4.18 4.29 1990 3.27 3.42 3.42 4.29 3.77 5.04 5.72 4.72 3.32 4.14 4.14 3.42 4.06 1991 3.82 3.62 4.70 4.64 4.00 4.56 5.59 5.02 3.54 6.03 4.32 4.01 4.49 1992 2.87 3.40 3.44 5.11 5.62 5.39 4.56 5.30 3.50 2.86 4.23 4.06 4.20 1993 3.40 3.32 3.79 5.44 6.48 4.63 5.37 5.54 3.88 4.42 5.02 3.95 4.60 1994 4.21 3.74 4.38 5.69 4.63 6.31 6.46 4.49 5.32 6.19 6.22 3.38 5.09 1995 3.94 4.25 4.67 5.81 7.51 7.55 8.18 6.68 5.42 3.48 3.69 3.64 5.40 1996 4.04 4.30 4.67 5.49 6.24 5.16 6.00 5.51 5.23 4.71 4.47 4.62 5.04 1997 3.58 2.80 4.06 4.97 5.39 5.15 5.26 5.18 5.36 5.90 5.81 4.50 4.83 1998 3.53 3.63 4.56 5.22 5.77 5.64 5.92 5.41 5.18 3.67 3.89 3.41 4.65 1999 3.98 3.84 4.20 4.58 4.37 4.78 5.99 5.56 4.32 4.71 4.24 3.49 4.50 2000 3.29 3.06 3.15 4.91 4.63 4.18 4.85 4.91 4.68 5.10 4.84 4.60 4.35 MEAN 3.59 3.71 4.38 5.39 6.22 6.39 6.92 6.73 5.66 5.38 4.68 3.93 5.24 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1964 ****** ****** ****** ****** ****** 5.15 4.66 4.74 3.83 3.34 4.12 3.17 ****** 1965 4.07 3.07 3.76 4.75 4.87 3.81 5.31 4.96 3.85 6.50 5.05 3.55 4.46 1966 4.45 4.19 4.05 4.82 4.90 4.28 5.27 4.95 5.19 6.57 4.15 3.67 4.71 1967 3.74 4.30 3.65 4.30 6.82 4.60 5.70 5.35 4.83 4.53 5.18 4.05 4.75 1968 3.91 4.32 3.71 6.35 7.36 5.96 5.99 5.26 4.92 4.90 5.78 5.21 5.31 1969 4.40 4.51 5.89 6.52 7.49 6.55 7.30 7.38 6.90 7.18 5.27 4.77 6.18 1970 4.34 4.23 4.73 6.61 5.94 5.71 7.34 6.41 5.76 4.99 5.35 4.21 5.47 1971 3.73 4.07 4.85 6.22 7.67 8.00 9.84 9.23 9.57 6.19 6.55 4.35 6.69 1972 4.67 4.55 5.48 8.14 8.26 8.77 9.69 8.33 7.45 5.42 5.24 4.50 6.71 1973 3.67 4.86 4.41 4.99 6.13 6.42 7.85 9.03 6.15 8.26 4.97 4.91 5.97 1974 4.74 5.11 6.85 5.75 6.64 8.72 6.09 10.52 8.89 6.18 6.56 5.38 6.79 1975 4.84 5.00 5.56 7.74 10.06 11.07 10.12 15.53 9.40 6.06 6.58 5.33 8.11 1976 6.13 5.32 6.53 8.22 9.79 12.96 12.85 13.35 9.72 6.05 3.90 4.70 8.29 1977 4.01 4.49 5.46 5.68 6.29 5.87 4.73 6.32 7.15 7.75 6.42 6.03 5.85 1978 5.97 5.63 6.49 6.75 5.90 6.58 12.48 8.68 7.07 6.61 4.49 5.57 6.85 1979 5.26 5.73 6.09 7.83 8.98 9.85 13.62 14.29 12.09 9.10 7.84 5.21 8.82 1980 4.82 5.23 6.78 7.94 7.57 10.06 12.98 10.96 10.84 8.53 6.98 5.70 8.20 1981 4.79 4.57 5.72 6.58 8.00 15.85 ****** 16.16 11.12 8.87 4.84 5.38 ****** 1982 4.85 3.85 ****** 7.31 7.69 9.40 11.50 9.44 9.00 6.51 4.76 3.72 ****** 1983 3.40 4.05 4.93 6.17 9.53 14.09 16.12 10.62 ****** ****** 5.27 4.23 ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** 6.45 4.78 3.81 4.07 4.07 2.95 4.75 5.11 3.45 ****** 1987 2.87 3.89 4.79 4.44 5.05 3.75 4.71 4.25 3.52 5.54 4.15 4.50 4.29 1988 4.06 4.56 4.62 5.81 4.96 3.76 5.67 6.40 4.59 5.33 3.81 3.95 4.79 1989 3.74 3.38 4.75 5.10 4.18 3.44 3.79 4.18 3.65 4.92 6.03 4.12 4.27 1990 3.57 3.45 3.40 3.93 3.51 6.00 5.60 4.45 3.36 4.03 4.12 3.53 4.08 1991 4.13 3.51 4.83 4.24 3.46 3.71 5.15 4.24 3.02 5.64 4.00 4.27 4.18 1992 3.08 3.63 3.56 5.11 5.20 4.43 3.83 4.60 2.49 2.40 4.16 4.14 3.88 1993 3.64 3.31 3.47 5.49 6.06 3.63 4.40 5.82 3.52 4.68 4.79 4.23 4.42 1994 4.09 3.52 4.02 5.06 4.03 6.06 5.75 3.71 5.23 6.51 6.45 3.50 4.83 1995 4.24 4.35 4.65 5.81 7.11 6.72 7.55 6.22 5.13 3.28 3.48 3.99 5.21 1996 4.38 4.52 4.83 5.56 6.29 4.70 5.41 5.91 4.65 4.47 4.57 4.61 4.99 1997 3.51 2.61 3.85 4.93 4.84 4.72 4.76 4.97 5.81 6.26 6.21 4.67 4.76 1998 3.96 3.80 4.67 4.77 4.96 5.43 5.43 4.95 4.74 3.58 3.62 3.37 4.44 1999 4.17 3.96 3.86 4.08 3.69 3.85 5.42 5.57 4.09 4.31 3.96 3.50 4.21 2000 3.42 2.78 2.62 4.62 3.52 3.69 4.37 3.61 4.36 4.90 4.96 4.55 3.95 MEAN 4.21 4.20 4.78 5.83 6.23 6.62 7.22 7.28 6.03 5.71 5.11 4.41 5.63 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1964 ****** ****** ****** ****** ****** 4.92 4.61 4.60 4.25 4.19 4.59 3.72 ****** 1965 4.13 3.54 4.74 5.23 5.35 4.05 4.50 5.30 4.38 6.52 5.51 3.74 4.75 1966 4.65 4.92 5.03 5.46 5.53 3.78 4.95 4.58 5.16 6.53 4.88 4.14 4.97 1967 4.04 3.96 4.12 4.39 7.39 5.01 6.28 5.70 5.18 6.20 6.09 4.40 5.23 1968 4.10 4.15 4.16 6.51 8.18 6.08 7.63 4.99 5.50 5.83 6.37 5.36 5.74 1969 4.62 4.59 5.99 6.86 8.09 5.83 6.17 6.66 5.62 7.42 5.44 4.75 6.00 1970 4.78 4.65 5.05 6.66 6.31 5.04 6.82 6.25 5.57 5.46 5.68 4.45 5.56 1971 4.25 4.04 4.88 6.42 7.70 7.20 8.54 7.99 7.70 6.15 6.75 4.59 6.35 1972 4.31 4.39 5.54 8.13 7.84 8.59 9.48 7.27 5.85 6.02 5.58 4.20 6.43 1973 3.75 5.51 4.15 5.68 5.41 5.77 6.41 8.80 7.20 6.41 4.78 5.01 5.74 1974 4.43 4.56 6.61 6.28 6.85 6.80 7.56 11.60 8.39 6.56 6.67 5.28 6.80 1975 4.85 5.04 5.88 8.09 9.21 8.47 9.09 11.94 8.75 7.53 6.42 5.34 7.55 1976 5.41 4.82 5.91 7.27 8.98 9.22 9.66 9.87 7.74 6.17 4.63 5.19 7.07 1977 3.84 4.68 5.61 6.17 6.13 6.29 5.67 7.40 6.34 6.70 6.66 5.77 5.94 1978 5.56 5.72 5.70 5.73 6.75 7.31 11.08 6.05 7.10 6.00 4.68 5.70 6.45 1979 5.15 6.04 5.59 6.07 8.03 7.61 11.47 12.39 9.27 8.26 6.89 4.58 7.61 1980 4.30 4.93 5.45 6.29 6.73 7.39 9.62 8.15 6.85 6.88 5.98 5.03 6.47 1981 4.96 4.86 5.23 6.11 7.09 12.95 ****** 14.45 7.96 8.47 4.73 5.12 ****** 1982 4.62 3.58 ****** 6.71 7.20 9.34 9.74 8.99 7.73 6.80 4.92 4.18 ****** 1983 3.95 4.01 4.81 6.00 8.39 12.47 15.47 9.75 ****** ****** 4.81 4.76 ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** 6.95 5.16 3.79 4.54 4.23 3.44 5.12 6.09 4.03 ****** 1987 3.57 4.58 5.43 4.64 5.67 3.72 5.05 4.81 3.75 6.77 4.76 4.68 4.79 1988 4.59 4.71 4.99 6.54 5.26 4.14 5.93 6.17 5.04 5.77 4.27 4.27 5.14 1989 3.94 3.59 5.60 6.11 4.24 3.44 4.15 4.09 4.13 5.51 6.47 4.97 4.69 1990 3.92 4.03 4.17 4.67 3.85 5.84 5.89 4.59 3.97 4.30 4.94 4.04 4.52 1991 4.94 4.00 5.67 4.87 3.90 4.03 5.81 5.08 3.82 6.50 4.93 4.83 4.87 1992 3.42 3.66 4.46 5.59 5.63 4.55 4.12 4.44 3.17 3.13 5.18 4.55 4.32 1993 4.16 3.93 4.22 5.91 6.69 3.87 4.68 6.08 3.94 4.89 5.52 5.45 4.94 1994 5.06 3.98 4.61 5.49 4.13 5.08 6.16 4.01 5.08 7.42 7.23 4.06 5.19 1995 4.84 5.34 5.61 6.39 7.44 7.10 7.81 7.37 5.63 3.89 4.03 4.45 5.82 1996 4.85 5.23 5.41 6.10 6.08 4.88 5.24 6.28 5.88 4.99 5.25 5.30 5.46 1997 4.48 3.31 4.44 5.54 4.79 4.43 4.88 5.25 5.65 6.91 6.73 5.37 5.15 1998 4.17 4.52 5.28 5.75 5.35 5.39 5.45 5.02 5.15 4.42 4.85 3.94 4.94 1999 4.90 4.97 4.27 4.25 4.27 4.23 5.70 6.01 4.95 5.13 4.73 4.21 4.80 2000 4.12 3.52 2.98 4.58 4.04 4.16 4.54 3.88 4.82 5.31 5.40 5.15 4.38 MEAN 4.45 4.47 5.05 5.99 6.29 6.08 6.91 6.86 5.74 6.01 5.50 4.71 5.67 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 1961 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1962 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1963 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1964 ***** ** ***** ** ***** ** ***** ** ***** ** 7.5 23 15.5 1 11.5 10 12.0 9 5.5 27 -5.5 28 -4.5 27 ***** 1965 -8.0 10 -5.0 25 -2.0 14 -2.0 6 4.5 7 11.0 19 14.0 8 15.5 31 8.5 23 1.9 28 0.0 29 -7.0 21 -8.0 1966 -7.5 13 -1.5 8 -2.5 30 1.0 4 3.0 7 10.5 16 12.0 6 13.0 1 10.1 27 6.5 27 0.0 25 -5.0 3 -7.5 1967 -6.0 22 -10.0 2 -5.0 29 -1.0 1 6.5 1 7.0 5 13.5 2 15.5 18 11.0 30 7.0 14 -3.0 28 -11.0 24 -11.0 1968 -14.0 17 -10.0 5 -2.0 24 2.5 26 7.0 2 9.0 8 11.5 11 ***** ** 7.5 6 3.5 29 -0.5 19 -4.5 10 ***** 1969 -13.5 31 -8.0 1 -1.0 24 -1.0 3 6.0 1 10.0 16 13.0 2 13.0 16 10.5 22 3.0 31 -2.5 18 -4.0 15 -13.5 1970 -7.0 29 -5.0 20 -0.5 15 2.0 20 5.0 7 10.0 1 14.0 5 11.0 31 9.0 14 3.4 16 0.0 30 -6.0 15 -7.0 1971 -4.5 19 -11.0 14 -4.5 16 -0.2 19 8.0 22 9.2 3 15.5 20 11.4 1 9.5 30 3.5 9 0.0 20 -7.3 18 -11.0 1972 -9.2 20 -9.0 10 -2.0 3 3.0 5 3.4 3 9.4 13 8.0 2 8.0 30 9.0 26 3.0 31 -1.0 21 -7.5 26 -9.2 1973 -13.0 17 -4.0 7 -4.0 4 1.5 5 6.0 2 10.0 6 13.5 3 17.0 29 11.5 22 9.0 20 -4.0 25 -7.0 13 -13.0 1974 -13.0 25 -15.0 5 -1.0 1 0.0 10 6.0 1 14.0 8 11.5 30 9.5 17 12.5 24 9.0 28 -2.0 26 -5.0 27 -15.0 1975 -5.0 17 -15.0 11 -3.5 2 3.0 23 8.0 6 9.0 11 19.0 2 16.0 11 13.0 27 7.0 16 -2.0 29 -5.0 25 -15.0 1976 -8.0 7 -5.0 12 -11.0 3 2.5 8 9.0 15 13.0 2 13.0 21 14.0 31 9.0 18 3.0 31 -2.5 28 0.5 10 -11.0 1977 -10.0 8 -1.0 10 0.0 5 4.5 15 9.0 1 15.0 1 17.0 1 8.0 1 15.2 29 5.0 29 1.0 13 -1.0 26 -10.0 1978 -3.5 14 -2.5 11 0.5 14 4.4 15 9.0 3 11.0 2 15.0 6 18.0 6 16.0 5 9.0 21 -0.5 13 1.0 31 -3.5 1979 -3.0 11 2.0 5 1.0 4 5.0 14 11.0 6 15.0 1 19.5 8 18.0 19 17.0 26 9.0 29 7.0 6 -7.0 31 -7.0 1980 -9.0 17 -6.0 1 -9.0 4 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1981 -3.0 4 -4.0 3 -2.5 4 -3.0 2 5.5 2 10.0 6 ***** ** 15.0 29 11.0 25 10.0 13 -1.5 23 0.0 5 ***** 1982 -2.0 20 -10.5 18 ***** ** 4.0 1 11.0 5 13.0 2 17.0 7 16.0 2 13.0 22 5.0 10 -0.5 30 -3.5 10 ***** 1983 -6.0 27 -4.4 1 -2.0 6 3.5 1 10.0 8 15.0 13 18.0 26 14.4 25 ***** ** ***** ** 4.4 28 -1.0 17 ***** 1984 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1985 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1986 ***** ** ***** ** ***** ** ***** ** 8.6 14 12.2 22 20.4 1 21.2 29 16.2 30 9.6 26 0.3 11 -4.0 3 ***** 1987 -2.2 2 -0.8 11 -2.2 20 1.6 1 9.8 26 15.0 11 17.8 10 14.3 27 14.4 21 7.8 31 1.4 28 -4.2 31 -4.2 1988 -5.4 20 -2.2 25 -3.0 6 3.4 1 6.5 4 16.0 2 19.8 1 15.0 31 14.4 13 6.6 31 -2.0 14 -12.0 29 -12.0 1989 -9.0 17 -9.2 15 -4.4 30 1.0 1 10.4 9 15.4 2 20.8 13 19.0 12 13.0 29 8.2 22 1.4 21 -3.0 7 -9.2 1990 -10.6 25 -2.6 24 0.8 19 2.4 5 9.0 7 14.8 20 18.8 3 18.6 10 17.0 7 7.8 29 2.2 13 -3.0 27 -10.6 1991 -4.2 28 -5.4 10 -2.0 8 4.4 13 8.6 24 15.0 4 18.2 8 19.2 31 15.4 21 10.0 23 5.0 26 -1.2 16 -5.4 1992 -12.6 4 -10.0 29 -5.6 1 2.8 1 8.2 6 15.4 18 18.4 13 20.6 11 11.6 26 8.2 28 -4.0 26 -9.6 28 -12.6 1993 -7.4 17 -5.4 16 -1.6 22 4.8 13 7.4 3 14.2 5 19.2 7 19.6 13 14.4 29 9.6 29 -6.2 14 1.2 5 -7.4 1994 -0.8 27 -4.0 18 0.6 15 6.0 3 9.0 7 13.8 29 20.0 20 19.0 11 16.0 28 9.0 20 2.6 9 -9.4 7 -9.4 1995 -2.0 23 -1.4 10 -0.6 27 2.6 6 8.0 9 15.4 4 19.0 6 20.2 24 12.0 21 10.0 6 -4.0 26 -1.6 20 -4.0 1996 -5.0 21 -2.8 6 0.6 28 4.8 11 12.6 13 13.2 6 21.6 7 18.0 24 14.0 21 5.6 28 5.4 29 1.4 16 -5.0 1997 -5.4 29 -10.0 6 -7.6 8 -3.0 11 7.4 5 13.8 3 18.6 7 19.0 20 13.4 30 9.4 24 3.4 28 -2.0 27 -10.0 1998 -9.4 14 -7.4 16 -0.8 21 5.0 5 9.6 1 16.0 1 18.8 9 20.2 23 15.6 27 7.6 31 7.4 2 3.0 23 -9.4 1999 -1.4 23 -2.0 21 0.4 17 3.8 10 10.6 2 17.0 14 19.4 16 22.4 1 14.5 25 11.0 23 -1.6 29 -0.2 3 -2.0 2000 -5.5 30 -3.4 9 -2.8 9 4.8 11 8.4 10 16.0 6 20.6 5 14.8 31 15.4 1 7.2 29 2.4 28 -0.2 16 -5.5 LOW. -14.0 17 -15.0 5 -11.0 3 -3.0 2 3.0 7 7.0 5 8.0 2 8.0 30 7.5 6 1.9 28 -6.2 14 -12.0 29 -15.0 YEAR 1968 1974 1976 1981 1966 1967 1972 1972 1968 1965 1993 1988 1974 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 1961 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1962 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1963 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1964 ***** ** ***** ** ***** ** ***** ** ***** ** 36.0 25 42.0 13 39.5 14 37.0 1 31.0 1 25.0 17 17.0 7 ***** 1965 15.0 22 17.5 28 22.0 8 25.5 28 33.5 21 36.0 3 40.0 15 39.5 8 35.5 2 27.0 1 24.5 5 27.5 1 40.0 1966 21.5 1 17.5 26 20.0 9 26.5 28 32.5 24 39.5 7 39.5 27 38.0 1 37.0 3 30.5 6 24.5 3 22.0 7 39.5 1967 16.5 14 14.0 28 17.0 21 30.0 12 32.0 24 35.0 15 41.0 15 36.5 3 36.5 15 29.0 1 24.5 1 16.0 15 41.0 1968 14.0 5 18.0 29 19.5 15 26.0 16 28.5 21 37.0 27 39.5 24 37.0 15 35.5 2 31.5 16 21.5 8 15.0 3 39.5 1969 14.0 1 19.0 27 22.0 19 27.0 27 32.0 13 35.0 10 39.0 16 39.0 21 37.5 7 33.5 25 22.5 23 22.0 12 39.0 1970 16.0 4 17.5 14 25.0 30 30.2 14 32.6 23 36.5 28 36.3 17 37.5 11 35.0 1 30.5 5 29.6 7 18.0 4 37.5 1971 23.1 2 17.0 26 22.0 25 26.0 29 29.0 17 36.0 14 38.0 11 34.8 28 35.5 10 30.0 13 26.0 2 19.0 1 38.0 1972 13.0 5 16.0 16 21.0 29 25.0 10 29.6 25 33.4 25 37.2 22 36.5 10 33.5 17 31.0 3 23.5 1 12.0 3 37.2 1973 14.5 30 20.5 18 22.0 2 27.0 26 30.0 8 37.8 28 41.0 26 39.0 8 36.0 12 30.0 1 25.0 2 19.0 4 41.0 1974 13.0 5 13.0 27 18.0 28 26.0 17 31.0 21 39.0 22 39.0 14 38.5 4 34.0 2 35.2 17 32.0 4 19.6 2 39.0 1975 16.0 14 16.5 16 25.0 22 29.0 6 36.0 31 40.0 20 41.0 13 47.0 20 40.0 5 35.0 1 24.0 3 16.5 26 47.0 1976 16.0 26 17.0 3 22.5 26 30.0 15 37.5 28 40.0 24 43.0 23 42.0 6 38.0 3 34.5 15 25.6 6 24.0 4 43.0 1977 16.0 3 21.0 16 21.4 17 24.2 21 31.5 13 38.0 18 39.0 21 39.5 3 36.0 6 30.5 2 26.0 8 19.0 4 39.5 1978 15.0 26 19.0 6 20.0 27 27.0 4 31.5 26 37.0 8 39.5 14 38.0 8 36.0 14 30.0 1 19.0 9 17.0 1 39.5 1979 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1980 13.0 6 16.0 16 25.0 31 26.0 10 33.0 23 37.0 30 39.0 6 38.0 4 36.0 2 28.5 2 24.0 16 27.0 7 39.0 1981 15.0 9 14.5 13 23.0 21 29.0 22 ***** ** ***** ** ***** ** 37.0 1 36.4 9 29.0 1 23.0 1 17.0 3 ***** 1982 15.0 4 14.0 26 ***** ** 26.5 30 31.5 29 35.0 16 37.0 12 37.0 20 35.0 6 25.0 3 17.0 4 13.0 20 ***** 1983 11.0 31 13.0 14 19.0 28 24.0 30 31.0 31 35.0 17 39.0 11 39.0 1 ***** ** ***** ** 25.0 2 18.0 1 ***** 1984 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1985 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1986 ***** ** ***** ** ***** ** 23.3 24 30.7 20 34.9 30 38.6 12 39.9 1 35.4 5 29.0 2 23.0 1 16.6 24 ***** 1987 20.2 18 19.6 1 16.0 3 29.5 30 31.0 29 37.2 27 38.8 18 38.2 6 36.2 9 30.0 3 22.4 17 15.4 3 38.8 1988 13.8 11 14.4 27 19.2 30 25.4 19 32.0 23 39.0 13 39.4 31 39.0 1 36.0 15 29.6 1 22.3 7 20.6 5 39.4 1989 9.6 19 17.0 28 22.2 7 27.4 16 33.0 24 37.8 27 40.6 20 38.2 26 36.4 2 31.8 6 20.8 4 15.2 24 40.6 1990 11.6 13 12.6 27 19.4 10 26.8 27 34.2 21 37.4 24 39.0 17 39.8 14 34.4 9 29.0 7 23.6 5 20.4 2 39.8 1991 13.6 6 15.6 24 20.6 29 28.8 25 30.4 9 37.6 25 39.6 31 39.6 1 36.4 1 28.6 13 23.8 2 13.8 8 39.6 1992 9.0 10 10.0 16 17.0 29 22.4 12 31.8 29 34.6 30 37.2 16 37.4 16 34.2 2 29.0 4 22.6 4 14.0 11 37.4 1993 11.8 27 17.8 27 21.6 31 26.0 19 28.4 26 35.6 30 38.6 16 36.6 30 35.6 1 29.4 1 21.4 8 17.6 22 38.6 1994 17.0 1 15.4 27 21.0 31 28.0 21 34.8 31 36.0 9 36.5 24 36.8 14 34.0 1 27.4 5 20.0 2 14.4 28 36.8 1995 15.6 14 14.4 1 19.4 31 24.0 30 31.4 18 35.6 20 39.2 21 39.0 1 37.0 1 30.2 2 23.6 1 13.4 25 39.2 1996 13.6 2 19.5 8 19.4 30 25.4 30 32.6 31 35.4 17 38.4 27 38.6 13 35.8 1 32.0 2 23.0 5 18.6 5 38.6 1997 15.6 12 16.2 21 16.2 3 27.4 27 32.5 27 36.4 28 37.6 27 37.6 25 33.6 1 29.4 16 19.8 2 16.4 8 37.6 1998 11.4 17 16.2 6 19.0 16 27.8 16 33.0 9 37.4 30 38.6 15 39.6 19 37.4 1 30.2 6 24.0 15 24.0 10 39.6 1999 15.6 31 17.4 1 23.0 31 26.8 27 36.6 31 37.4 20 39.0 20 39.4 27 36.2 3 32.2 2 21.6 7 23.0 31 39.4 2000 20.8 1 15.0 22 20.6 21 27.6 20 31.6 25 39.6 30 40.0 16 38.6 2 35.8 9 28.0 11 19.6 12 17.0 29 40.0 HIG. 23.1 2 21.0 16 25.0 30 30.2 14 37.5 28 40.0 20 43.0 23 47.0 20 40.0 5 35.2 17 32.0 4 27.5 1 47.0 YEAR 1971 1977 1970 1970 1976 1975 1976 1975 1975 1974 1974 1965 1975 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 1961 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1962 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1963 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1964 ***** ** ***** ** ***** ** ***** ** ***** ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 18.0 27 22.0 13 ***** 1965 54.0 20 7.0 5 29.0 23 35.5 19 19.0 2 0.0 ** 0.0 ** 0.0 ** 3.5 28 29.0 22 93.0 8 3.5 28 93.0 1966 40.0 30 62.0 2 39.0 13 18.0 9 8.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 25.0 25 1.5 16 18.0 21 62.0 1967 22.0 18 54.0 17 23.0 5 17.0 26 26.5 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 26.5 12 70.0 11 57.0 4 70.0 1968 65.0 7 25.0 21 20.0 29 9.5 19 15.0 10 4.0 6 0.0 ** 0.0 ** 0.0 ** 8.0 24 60.0 27 44.5 17 65.0 1969 59.5 19 12.2 16 32.0 20 71.0 5 23.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.0 19 23.0 2 30.0 26 71.0 1970 43.0 21 15.0 6 21.5 12 58.0 30 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.5 14 26.0 28 19.0 9 58.0 1971 22.5 16 52.0 13 56.0 28 65.5 13 7.0 7 0.0 ** 9.5 24 0.5 4 0.0 ** 5.0 26 113.0 18 31.0 29 113.0 1972 41.4 22 40.0 8 47.0 19 50.0 23 16.0 1 4.0 10 0.0 ** 0.3 23 0.0 ** 0.0 ** 30.0 5 20.0 12 50.0 1973 33.0 28 23.0 22 15.0 8 13.0 17 0.0 ** 0.0 ** 0.0 ** 0.0 ** 30.0 28 0.0 ** 9.0 23 31.0 18 33.0 1974 85.0 29 59.0 26 70.0 16 38.0 3 4.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 10.0 25 37.0 4 85.0 1975 18.0 3 35.0 20 12.0 18 37.0 19 27.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 12.0 16 38.0 23 38.0 1976 18.0 14 29.0 5 39.0 1 23.0 4 24.0 15 0.0 ** 0.0 ** 0.0 ** 0.0 ** 10.0 29 0.0 ** 19.0 8 39.0 1977 37.0 18 9.5 3 23.0 26 41.0 7 30.0 23 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.0 31 42.0 12 35.0 14 42.0 1978 50.0 4 35.0 21 32.0 5 2.0 26 10.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.0 11 47.0 10 50.0 1979 40.0 21 40.0 9 40.0 26 3.0 11 10.0 6 0.0 ** 0.0 ** 5.0 31 0.0 ** 22.0 27 10.0 30 25.0 1 40.0 1980 60.0 22 30.0 25 35.0 1 12.0 2 11.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 45.0 9 40.0 13 60.0 1981 30.0 21 40.0 9 29.0 28 14.0 1 11.0 1 6.0 25 ***** ** 0.0 ** 0.0 ** 45.0 13 37.0 29 20.0 26 ***** 1982 34.0 16 55.0 22 ***** ** 24.0 7 27.0 5 0.0 ** 0.0 ** 0.0 ** 2.0 30 26.0 23 43.0 25 21.0 6 ***** 1983 20.0 24 40.0 4 29.0 30 20.0 22 12.0 16 0.0 ** 0.0 ** 0.0 ** ***** ** ***** ** 25.0 27 50.0 9 ***** 1984 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1985 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1986 ***** ** ***** ** ***** ** 29.0 10 11.0 3 0.0 ** 0.0 ** 0.0 ** 0.0 ** 11.1 21 55.0 4 13.0 2 ***** 1987 4.0 7 36.0 5 50.0 4 6.0 4 10.0 5 0.0 ** 2.0 31 1.0 1 0.0 ** 28.4 24 18.0 2 56.0 23 56.0 1988 18.0 18 19.0 9 48.0 3 19.0 25 2.0 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.2 15 5.0 9 48.0 17 48.0 1989 13.0 17 27.0 13 26.0 14 14.0 11 17.7 7 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.1 30 55.0 14 53.8 1 55.0 1990 24.0 24 39.7 2 45.0 11 38.0 2 0.2 11 0.0 ** 0.0 ** 0.0 ** 0.0 ** 32.0 28 20.0 11 24.0 24 45.0 1991 33.0 14 86.0 26 26.0 6 12.0 17 0.2 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 10.6 21 25.0 14 38.0 12 86.0 1992 22.0 2 37.0 23 72.0 15 7.0 24 22.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 84.0 8 23.2 2 84.0 1993 59.0 7 26.6 21 38.0 5 25.2 28 35.0 13 1.0 1 0.0 ** 0.0 ** 0.0 ** 25.0 30 25.0 3 40.0 15 59.0 1994 81.0 16 53.0 1 26.0 12 18.0 27 4.0 6 0.0 ** 0.0 ** 0.0 ** 1.0 22 31.0 20 103.0 23 20.0 16 103.0 1995 11.0 17 48.0 5 17.0 12 45.0 4 7.0 2 0.2 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 3 9.0 12 48.0 1996 33.0 5 27.6 1 31.0 1 55.0 13 3.8 7 0.0 ** 4.0 17 0.0 ** 0.2 21 0.0 ** 11.2 21 41.0 10 55.0 1997 52.0 15 6.0 24 33.0 28 48.0 5 8.1 19 0.0 ** 0.0 ** 0.0 ** 0.0 ** 5.0 19 32.0 30 24.0 14 52.0 1998 49.3 12 28.0 15 59.0 29 17.0 20 9.2 12 1.0 16 0.0 ** 0.0 ** 0.0 ** 1.2 10 24.0 11 1.5 31 59.0 1999 78.0 9 32.0 20 6.3 1 8.0 1 0.4 7 0.0 ** 2.0 14 0.6 4 0.0 ** 1.1 27 51.0 8 11.0 2 78.0 2000 50.0 5 30.6 13 38.0 24 14.0 9 2.1 8 0.0 ** 0.0 ** 0.0 ** 1.0 29 14.0 17 30.8 30 19.0 24 50.0 HIG. 85.0 29 86.0 26 72.0 15 71.0 5 35.0 13 6.0 25 9.5 24 5.0 31 30.0 28 45.0 13 113.0 18 57.0 4 113.0 YEAR 1974 1991 1992 1969 1993 1981 1971 1979 1973 1981 1971 1967 1971 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1964 ****** ****** ****** ****** ****** 0.0 0.0 0.0 0.0 0.0 62.0 57.0 ****** ***** 0.0 0.0 100.0 1965 215.0 9.0 61.5 95.9 31.0 0.0 0.0 0.0 3.5 64.0 119.0 7.5 606.4 47.1 20.9 0.6 31.4 1966 114.0 189.0 210.0 69.0 17.0 0.0 0.0 0.0 0.0 87.0 2.0 31.0 719.0 71.3 12.0 0.0 16.7 1967 82.0 209.5 54.4 40.5 94.5 0.0 0.0 0.0 0.0 59.5 278.0 120.0 938.4 36.9 14.4 0.0 48.8 1968 125.0 87.0 40.0 30.5 77.0 4.0 0.0 0.0 0.0 17.5 185.0 205.9 771.9 32.6 14.4 0.0 52.9 1969 312.0 51.1 132.7 222.7 63.0 0.0 0.0 0.0 0.0 23.0 37.0 64.0 905.5 54.8 31.6 0.0 13.7 1970 170.0 17.5 100.4 107.9 0.0 0.0 0.0 0.0 0.0 2.5 37.0 47.0 482.3 59.7 22.4 0.0 17.9 1971 49.2 115.0 70.5 171.5 11.7 0.0 10.5 0.5 0.0 5.4 211.2 78.3 723.8 32.4 25.3 1.5 40.7 1972 88.7 87.0 253.7 101.0 32.1 5.8 0.0 0.5 0.0 0.0 100.0 82.0 750.8 57.2 18.5 0.1 24.2 1973 94.5 74.0 38.0 36.0 0.0 0.0 0.0 0.0 30.0 0.0 20.6 102.0 395.1 52.3 9.1 7.6 31.0 1974 217.5 188.5 352.5 80.5 6.0 0.0 0.0 0.0 0.0 0.0 28.0 90.0 963.0 78.8 9.0 0.0 12.3 1975 71.0 146.5 25.0 99.0 53.0 0.0 0.0 0.0 0.0 0.0 63.0 156.0 613.5 39.5 24.8 0.0 35.7 1976 114.5 85.0 181.0 61.0 24.0 0.0 0.0 0.0 0.0 17.0 0.0 74.0 556.5 68.4 15.3 0.0 16.4 1977 170.0 22.5 75.7 62.0 32.0 0.0 0.0 0.0 0.0 31.0 43.0 107.0 543.2 49.4 17.3 0.0 33.3 1978 65.0 99.0 107.5 2.0 14.0 0.0 0.0 0.0 0.0 0.0 11.5 128.5 427.5 63.5 3.7 0.0 32.7 1979 76.0 66.0 99.0 3.0 17.0 0.0 0.0 7.5 0.0 51.0 10.0 157.0 486.5 49.5 4.1 1.5 44.8 1980 140.0 151.0 108.0 13.0 11.0 0.0 0.0 0.0 0.0 0.0 96.0 137.0 656.0 60.8 3.7 0.0 35.5 1981 80.0 123.0 123.0 43.0 33.0 6.0 ****** 0.0 0.0 60.0 51.0 42.0 ****** 58.1 14.6 0.0 27.3 1982 79.0 279.0 ****** 91.0 44.0 0.0 0.0 0.0 2.0 68.0 105.0 62.0 ****** 49.0 18.5 0.3 32.2 1983 87.0 88.0 123.0 59.0 39.0 0.0 0.0 0.0 ****** ****** 51.0 139.0 ****** 50.9 16.7 0.0 32.4 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1986 ****** ****** ****** 92.6 24.5 0.0 0.0 0.0 0.0 14.2 143.3 46.5 ****** ***** 36.5 0.0 63.5 1987 8.1 101.6 283.0 21.4 27.4 0.0 2.8 1.0 0.0 125.6 48.0 201.4 820.3 47.9 5.9 0.5 45.7 1988 82.3 128.4 101.4 53.3 2.4 0.0 0.0 0.0 0.0 11.6 14.0 154.2 547.6 57.0 10.2 0.0 32.8 1989 61.3 83.3 163.6 40.3 17.7 0.0 0.0 0.0 0.0 4.5 125.9 101.3 597.9 51.5 9.7 0.0 38.8 1990 132.6 129.3 54.7 59.0 0.2 0.0 0.0 0.0 0.0 44.8 25.0 53.0 498.6 63.5 11.9 0.0 24.6 1991 94.8 148.5 128.2 33.9 0.2 0.0 0.0 0.0 0.0 26.1 47.2 186.7 665.6 55.8 5.1 0.0 39.1 1992 85.1 160.2 209.6 20.5 56.9 0.0 0.0 0.0 0.0 0.0 115.7 105.3 753.3 60.4 10.3 0.0 29.3 1993 122.7 59.6 75.5 154.4 75.2 1.0 0.0 0.0 0.0 45.4 62.4 95.0 691.2 37.3 33.4 0.0 29.3 1994 145.2 104.2 66.7 62.1 4.9 0.0 0.0 0.0 1.0 83.7 431.3 97.5 996.6 31.7 6.7 0.1 61.5 1995 18.0 95.4 64.8 97.7 31.2 0.2 0.0 0.0 0.0 0.0 7.2 35.9 350.4 50.9 36.8 0.0 12.3 1996 149.7 113.7 188.7 126.9 11.5 0.0 4.0 0.0 0.2 0.0 21.9 96.8 713.4 63.4 19.4 0.6 16.6 1997 134.3 18.1 162.8 149.1 12.2 0.0 0.0 0.0 0.0 11.9 86.0 93.1 667.5 47.2 24.2 0.0 28.6 1998 178.4 65.5 214.9 43.3 20.2 2.0 0.0 0.0 0.0 1.2 37.0 1.5 564.0 81.3 11.6 0.0 7.0 1999 172.0 84.0 23.4 19.7 0.8 0.0 2.8 0.6 0.0 1.4 55.0 33.0 392.7 71.1 5.2 0.9 22.8 2000 143.7 49.2 46.0 19.6 2.6 0.0 0.0 0.0 1.1 33.6 79.2 129.0 504.0 47.4 4.4 0.2 48.0 MEAN 117.5 103.9 123.1 70.1 26.1 0.5 0.6 0.3 1.1 26.2 80.3 94.8 644.5 53.5 15.0 0.3 31.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 0 0 0 0 0 9 5 *** 1965 12 3 10 11 3 0 0 0 1 11 5 4 60 1966 8 10 12 9 3 0 0 0 0 8 2 5 57 1967 6 12 6 5 9 0 0 0 0 4 12 6 60 1968 9 9 4 14 14 1 0 0 0 3 10 10 74 1969 15 10 15 13 6 0 0 0 0 6 6 7 78 1970 11 3 9 6 0 0 0 0 0 1 3 4 37 1971 5 7 7 13 5 0 2 1 0 2 11 12 65 1972 7 8 13 10 5 2 0 2 0 0 6 7 60 1973 8 7 4 7 0 0 0 0 1 0 5 9 41 1974 11 13 18 5 2 0 0 0 0 0 4 8 61 1975 7 13 4 4 6 0 0 0 0 0 8 8 50 1976 12 7 12 7 1 0 0 0 0 3 0 8 50 1977 9 5 9 5 2 0 0 0 0 7 2 9 48 1978 2 6 9 1 2 0 0 0 0 0 4 9 33 1979 4 4 6 1 3 0 0 2 0 4 1 11 36 1980 9 10 6 2 1 0 0 0 0 0 9 6 43 1981 7 7 10 5 6 1 *** 0 0 6 5 5 *** 1982 5 9 *** 6 4 0 0 0 1 7 6 5 *** 1983 7 4 10 7 5 0 0 0 *** *** 4 8 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** 11 9 0 0 0 0 4 12 10 *** 1987 5 11 23 8 7 0 2 1 0 15 5 11 88 1988 15 15 10 12 2 0 0 0 0 4 10 9 77 1989 9 12 20 7 1 0 0 0 0 2 10 8 69 1990 18 10 5 4 1 0 0 0 0 3 4 4 49 1991 10 8 15 5 1 0 0 0 0 7 4 14 64 1992 14 17 18 7 7 0 0 0 0 0 9 15 87 1993 10 11 8 15 11 1 0 0 0 4 11 7 78 1994 13 13 14 8 2 0 0 0 1 9 16 14 90 1995 3 9 10 11 11 1 0 0 0 0 6 8 59 1996 17 14 19 11 7 0 1 0 1 0 4 9 83 1997 7 7 14 11 6 0 0 0 0 10 13 9 77 1998 19 12 13 9 4 2 0 0 0 1 2 1 63 1999 12 7 8 7 2 0 2 1 0 3 3 7 52 2000 10 5 3 7 4 0 0 0 2 8 9 15 63 MEAN 10 9 11 8 4 0 0 0 0 4 7 8 61 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 0 0 0 0 0 9 5 *** 1965 12 2 9 10 3 0 0 0 1 10 5 4 56 1966 8 10 12 8 3 0 0 0 0 8 1 5 55 1967 6 12 6 5 9 0 0 0 0 4 12 6 60 1968 9 9 4 11 14 1 0 0 0 3 10 10 71 1969 15 10 15 13 6 0 0 0 0 6 5 7 77 1970 11 3 9 6 0 0 0 0 0 1 3 4 37 1971 4 7 6 9 4 0 2 0 0 1 11 10 54 1972 7 7 13 10 5 2 0 0 0 0 6 7 57 1973 8 7 4 7 0 0 0 0 1 0 5 9 41 1974 10 13 17 5 2 0 0 0 0 0 4 8 59 1975 7 13 4 4 6 0 0 0 0 0 8 8 50 1976 12 7 12 7 1 0 0 0 0 3 0 8 50 1977 9 5 8 5 2 0 0 0 0 7 2 9 47 1978 2 6 9 1 2 0 0 0 0 0 4 9 33 1979 4 4 6 1 3 0 0 2 0 4 1 11 36 1980 9 10 6 2 1 0 0 0 0 0 9 6 43 1981 7 7 10 5 6 1 *** 0 0 6 5 5 *** 1982 5 9 *** 6 4 0 0 0 1 7 6 5 *** 1983 7 4 10 7 5 0 0 0 *** *** 4 8 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** 8 6 0 0 0 0 3 10 8 *** 1987 2 10 20 6 6 0 1 1 0 11 4 10 71 1988 13 15 8 9 1 0 0 0 0 3 5 8 62 1989 8 9 16 7 1 0 0 0 0 2 8 7 58 1990 16 10 4 4 0 0 0 0 0 2 2 3 41 1991 10 7 13 4 0 0 0 0 0 6 4 14 58 1992 10 15 16 6 4 0 0 0 0 0 7 11 69 1993 9 9 7 13 7 1 0 0 0 4 10 7 67 1994 10 10 8 6 1 0 0 0 1 8 16 10 70 1995 3 6 8 10 8 0 0 0 0 0 2 7 44 1996 14 12 18 9 5 0 1 0 0 0 3 8 70 1997 6 6 12 9 3 0 0 0 0 3 9 7 55 1998 16 8 11 6 4 2 0 0 0 1 2 1 51 1999 12 7 6 6 0 0 1 0 0 1 3 6 42 2000 7 4 3 4 1 0 0 0 1 4 5 13 42 MEAN 9 8 10 7 4 0 0 0 0 3 6 8 55 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 0 0 0 0 0 1 2 *** 1965 8 0 1 3 1 0 0 0 0 2 2 0 17 1966 4 4 7 3 0 0 0 0 0 3 0 1 22 1967 5 9 3 1 4 0 0 0 0 2 8 3 35 1968 3 4 2 0 2 0 0 0 0 0 5 7 23 1969 12 2 5 9 3 0 0 0 0 0 1 3 35 1970 7 1 5 3 0 0 0 0 0 0 1 3 20 1971 2 3 1 4 0 0 0 0 0 0 6 3 19 1972 3 2 9 3 1 0 0 0 0 0 3 3 24 1973 4 4 3 1 0 0 0 0 1 0 0 5 18 1974 5 6 13 3 0 0 0 0 0 0 2 4 33 1975 3 7 1 4 2 0 0 0 0 0 4 6 27 1976 6 4 6 2 1 0 0 0 0 1 0 3 23 1977 8 0 3 2 1 0 0 0 0 0 1 4 19 1978 2 4 6 0 1 0 0 0 0 0 0 3 16 1979 2 2 3 0 1 0 0 0 0 3 1 8 20 1980 4 7 5 1 1 0 0 0 0 0 2 5 25 1981 3 5 5 2 1 0 *** 0 0 1 1 1 *** 1982 2 7 *** 4 1 0 0 0 0 3 4 3 *** 1983 6 3 6 2 2 0 0 0 *** *** 2 5 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** 3 1 0 0 0 0 1 5 2 *** 1987 0 3 10 0 1 0 0 0 0 5 2 7 28 1988 3 6 3 2 0 0 0 0 0 0 0 4 18 1989 3 4 5 1 1 0 0 0 0 0 3 3 20 1990 5 5 1 2 0 0 0 0 0 2 1 3 19 1991 3 3 5 2 0 0 0 0 0 1 1 7 22 1992 3 7 6 0 4 0 0 0 0 0 1 5 26 1993 3 1 2 6 2 0 0 0 0 2 2 2 20 1994 2 3 2 3 0 0 0 0 0 4 11 4 29 1995 1 4 4 3 0 0 0 0 0 0 0 0 12 1996 5 5 6 3 0 0 0 0 0 0 1 3 23 1997 4 0 7 5 0 0 0 0 0 0 3 4 23 1998 6 2 5 2 0 0 0 0 0 0 2 0 17 1999 5 2 0 0 0 0 0 0 0 0 1 1 9 2000 5 1 1 1 0 0 0 0 0 2 3 6 19 MEAN 4 4 4 2 1 0 0 0 0 1 2 4 22 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 35 29 31 29 30 53 64 *** 1965 74 54 52 57 41 28 28 30 31 61 57 63 48 1966 58 72 60 60 41 26 28 27 31 51 40 56 46 1967 69 69 59 59 57 41 35 40 42 60 78 72 57 1968 71 75 63 62 68 53 38 40 44 52 76 74 60 1969 76 72 68 70 62 47 41 44 49 62 67 71 61 1970 79 69 67 58 53 40 48 47 42 51 58 75 57 1971 64 74 59 72 65 55 49 54 46 51 76 76 62 1972 82 77 75 73 76 62 55 56 54 52 67 74 67 1973 69 71 66 68 56 50 43 37 42 47 60 78 57 1974 79 79 79 66 58 48 34 41 42 50 65 82 60 1975 78 79 72 75 64 43 38 52 46 55 74 80 63 1976 82 80 79 78 68 52 47 42 55 53 45 58 62 1977 77 48 55 56 52 36 27 25 39 55 65 72 51 1978 77 74 63 51 40 37 41 24 32 46 58 69 51 1979 70 66 62 49 56 44 50 54 46 52 53 64 56 1980 71 70 60 53 45 31 28 29 41 44 68 65 50 1981 69 69 64 51 49 57 *** 47 42 55 51 61 *** 1982 67 74 *** 56 48 39 42 40 37 54 52 69 *** 1983 70 61 68 53 49 51 48 37 *** *** 50 67 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 48 60 78 50 37 23 26 23 28 53 50 72 46 1988 74 81 73 53 39 22 27 33 26 42 49 67 49 1989 84 66 71 52 35 22 18 23 24 36 71 73 48 1990 72 70 50 50 28 27 25 24 20 36 46 52 42 1991 70 68 66 45 32 23 27 24 21 52 51 70 46 1992 69 79 66 61 47 32 22 26 22 25 55 76 48 1993 70 63 59 63 54 27 23 26 22 37 63 58 47 1994 68 70 64 53 35 35 31 23 32 49 76 68 50 1995 68 73 67 64 53 40 38 30 34 31 45 71 51 1996 73 69 72 61 43 28 24 24 30 41 52 67 49 1997 65 62 73 58 40 28 26 27 33 49 71 77 51 1998 78 68 69 54 43 27 26 22 30 30 41 43 44 1999 70 66 60 48 30 25 27 22 26 37 55 53 43 2000 70 61 48 44 34 24 19 21 30 47 66 75 45 MEAN 72 69 65 58 48 37 34 34 35 47 59 68 52 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 15 11 12 11 15 37 38 *** 1965 63 35 34 42 22 12 13 12 13 41 38 37 30 1966 43 47 41 33 23 12 15 13 17 40 24 37 29 1967 51 69 41 35 36 16 15 14 16 24 49 50 35 1968 54 58 34 49 36 20 15 17 16 23 46 58 36 1969 61 54 47 53 36 20 19 20 24 35 41 46 38 1970 58 41 43 39 27 17 20 18 19 23 35 50 33 1971 46 56 42 52 35 27 27 28 30 30 56 58 41 1972 69 63 56 52 47 30 26 25 25 22 39 62 43 1973 51 47 40 32 26 20 20 22 19 34 39 55 34 1974 71 77 66 42 28 27 16 28 30 22 41 61 42 1975 62 67 46 41 44 29 21 35 24 25 50 65 42 1976 73 59 66 53 40 35 30 29 29 29 28 49 43 1977 68 40 44 38 30 18 12 16 25 42 49 61 37 1978 63 56 53 41 26 23 30 22 22 30 47 55 39 1979 60 51 53 43 40 31 33 36 32 45 49 61 45 1980 63 59 60 47 32 29 30 30 35 40 50 51 44 1981 55 55 50 39 39 52 *** 42 35 43 37 50 *** 1982 59 63 *** 51 35 30 34 27 29 40 50 51 *** 1983 53 54 57 45 44 44 47 30 *** *** 38 48 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** 46 25 14 10 11 9 23 53 46 *** 1987 32 41 56 32 22 11 12 11 12 34 30 57 29 1988 58 64 50 37 22 13 14 18 15 26 30 50 33 1989 63 54 51 29 20 11 9 11 13 24 51 49 32 1990 61 52 33 31 15 19 15 12 11 23 29 37 28 1991 56 48 49 27 17 11 13 11 10 32 31 55 30 1992 58 67 51 40 31 17 10 14 9 12 38 58 34 1993 55 45 38 43 34 13 11 16 11 26 42 41 31 1994 50 48 39 31 19 20 16 10 18 37 59 54 33 1995 47 53 44 43 33 23 20 15 18 17 26 50 32 1996 61 53 55 41 28 15 14 15 16 24 36 47 34 1997 46 39 51 37 23 15 13 13 20 32 53 56 33 1998 64 51 51 30 23 16 14 12 15 16 22 28 29 1999 52 44 36 27 14 12 15 13 13 20 32 35 26 2000 50 34 24 26 15 11 10 9 15 28 43 55 27 MEAN 57 53 47 40 29 21 19 19 19 29 41 50 35 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 18 13 15 17 29 50 56 *** 1965 73 47 50 51 30 17 15 16 19 50 53 46 39 1966 52 64 59 45 29 14 16 15 21 47 38 50 38 1967 60 69 56 42 46 24 23 22 24 41 66 58 44 1968 68 64 44 56 54 30 26 19 25 38 64 68 46 1969 74 62 58 63 46 25 22 26 26 48 59 58 47 1970 71 58 56 50 40 21 25 25 25 38 50 67 44 1971 59 63 51 62 46 33 30 33 36 47 74 72 51 1972 79 75 70 73 57 40 36 28 29 43 62 74 56 1973 67 66 46 49 31 24 21 29 34 39 54 68 44 1974 81 79 76 60 38 27 26 41 36 38 58 80 53 1975 77 78 64 63 53 30 27 41 33 43 65 81 55 1976 81 73 75 62 53 33 32 31 30 39 42 63 51 1977 76 55 57 52 35 27 18 24 26 50 67 73 47 1978 71 71 63 49 39 33 33 21 28 35 59 70 48 1979 69 70 60 43 50 32 36 40 32 54 53 64 50 1980 70 69 58 52 42 35 33 29 31 44 54 61 48 1981 66 70 55 46 45 55 *** 46 33 52 46 60 *** 1982 70 69 *** 56 43 35 34 31 30 51 62 66 *** 1983 69 62 63 54 45 46 47 32 *** *** 42 63 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** 52 29 14 12 12 12 28 74 66 *** 1987 50 55 70 33 27 12 15 15 15 49 45 67 38 1988 74 69 56 46 24 15 16 18 19 34 43 62 40 1989 80 62 66 42 20 11 11 12 16 33 66 71 41 1990 74 65 44 35 17 19 16 14 14 28 43 49 35 1991 78 59 63 33 20 13 16 15 15 43 47 74 40 1992 72 72 67 47 35 18 12 14 13 19 55 74 42 1993 72 60 49 49 40 14 13 18 14 31 59 64 40 1994 68 57 49 36 20 18 18 12 20 46 75 69 41 1995 62 70 57 49 36 25 22 20 22 23 38 68 41 1996 74 66 66 48 27 16 14 17 22 30 49 63 41 1997 65 54 60 43 23 15 14 16 22 42 68 75 41 1998 75 66 62 39 26 16 15 13 18 24 38 40 36 1999 68 60 44 29 18 13 16 16 19 28 46 50 34 2000 68 49 31 27 18 13 11 10 19 35 56 70 34 MEAN 70 64 58 48 35 24 22 22 23 39 55 65 44 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 0 0 0 0 0 2 4 *** 1965 8 1 0 0 0 0 0 0 0 0 0 4 13 1966 2 0 0 0 0 0 0 0 0 0 0 1 3 1967 4 8 1 0 0 0 0 0 0 0 0 4 17 1968 8 5 0 0 0 0 0 *** 0 0 0 1 *** 1969 3 7 0 0 0 0 0 0 0 0 0 1 11 1970 4 2 0 0 0 0 0 0 0 0 0 5 11 1971 2 4 1 0 0 0 0 0 0 0 0 10 17 1972 14 14 0 0 0 0 0 0 0 0 0 14 42 1973 21 1 3 0 0 0 0 0 0 0 1 2 28 1974 12 8 0 0 0 0 0 0 0 0 0 1 21 1975 5 5 0 0 0 0 0 0 0 0 0 4 14 1976 6 1 4 0 0 0 0 0 0 0 0 0 11 1977 8 0 0 0 0 0 0 0 0 0 0 0 8 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 0 0 0 0 3 3 1980 6 2 5 *** *** *** *** *** *** *** *** *** *** 1981 0 1 0 0 0 0 *** 0 0 0 0 0 *** 1982 0 10 *** 0 0 0 0 0 0 0 0 0 *** 1983 5 1 0 0 0 0 0 0 *** *** 0 0 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** 0 0 0 0 0 0 0 2 *** 1987 0 0 0 0 0 0 0 0 0 0 0 1 1 1988 1 0 0 0 0 0 0 0 0 0 0 4 5 1989 11 4 1 0 0 0 0 0 0 0 0 0 16 1990 7 0 0 0 0 0 0 0 0 0 0 0 7 1991 1 3 0 0 0 0 0 0 0 0 0 0 4 1992 10 9 4 0 0 0 0 0 0 0 1 3 27 1993 2 2 0 0 0 0 0 0 0 0 1 0 5 1994 0 1 0 0 0 0 0 0 0 0 0 4 5 1995 0 0 0 0 0 0 0 0 0 0 1 0 1 1996 1 0 0 0 0 0 0 0 0 0 0 0 1 1997 2 7 1 0 0 0 0 0 0 0 0 0 10 1998 4 3 0 0 0 0 0 0 0 0 0 0 7 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 4 0 0 0 0 0 0 0 0 0 0 0 4 MEAN 5 3 1 0 0 0 0 0 0 0 0 2 11 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 1 6 0 0 0 0 0 *** 1965 0 0 0 0 0 5 9 17 2 0 0 0 33 1966 0 0 0 0 0 4 9 12 2 0 0 0 27 1967 0 0 0 0 1 1 9 2 2 0 0 0 15 1968 0 0 0 0 0 0 13 *** 0 0 0 0 *** 1969 0 0 0 0 0 1 3 2 0 0 0 0 6 1970 0 0 0 0 0 0 2 0 0 0 0 0 2 1971 0 0 0 0 0 0 2 3 0 0 0 0 5 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 1 4 12 0 0 0 0 17 1974 0 0 0 0 0 3 8 4 0 0 0 0 15 1975 0 0 0 0 0 8 22 16 6 0 0 0 52 1976 0 0 0 0 0 2 4 9 0 0 0 0 15 1977 0 0 0 0 1 7 22 24 4 0 0 0 58 1978 0 0 0 0 1 8 22 15 11 0 0 0 57 1979 0 0 0 0 1 9 22 24 15 0 0 0 71 1980 0 0 0 *** *** *** *** *** *** *** *** *** *** 1981 0 0 0 0 0 8 *** 23 1 0 0 0 *** 1982 0 0 *** 0 0 7 13 12 7 0 0 0 *** 1983 0 0 0 0 0 11 18 12 *** *** 0 0 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** 0 1 30 30 13 0 0 0 *** 1987 0 0 0 0 1 6 28 19 4 0 0 0 58 1988 0 0 0 0 0 4 26 14 2 0 0 0 46 1989 0 0 0 0 1 7 30 22 5 0 0 0 65 1990 0 0 0 0 2 7 27 23 1 0 0 0 60 1991 0 0 0 0 0 14 27 21 7 0 0 0 69 1992 0 0 0 0 1 3 25 30 9 0 0 0 68 1993 0 0 0 0 1 10 27 28 11 0 0 0 77 1994 0 0 0 0 2 14 27 20 12 0 0 0 75 1995 0 0 0 0 4 10 24 27 5 1 0 0 71 1996 0 0 0 0 1 13 31 29 9 2 0 0 85 1997 0 0 0 0 2 16 26 22 2 0 0 0 68 1998 0 0 0 0 1 22 28 30 10 0 0 0 91 1999 0 0 0 0 5 15 28 31 6 0 0 0 85 2000 0 0 0 0 0 4 29 29 2 0 0 0 64 MEAN 0 0 0 0 1 7 18 17 4 0 0 0 47 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 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 1 0 0 0 0 0 0 0 0 0 0 1 2 1968 3 1 0 0 0 0 0 0 0 0 0 0 4 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 1 0 0 0 0 0 0 0 0 0 0 1 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 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 0 0 0 *** *** *** 0 0 0 0 0 *** 1982 0 1 *** 0 0 0 0 0 0 0 0 0 *** 1983 0 0 0 0 0 0 0 0 *** *** 0 0 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 2 2 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 1 0 0 0 0 0 0 0 0 0 0 0 1 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 6 2 0 0 0 0 0 0 0 0 0 0 8 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 0 0 0 0 0 0 0 0 2 2 1995 0 0 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 1 0 0 0 0 0 0 0 0 0 0 1 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 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 30 31 31 30 2 0 0 *** 1965 0 0 0 0 13 26 31 31 22 0 0 0 123 1966 0 0 0 0 8 29 31 31 19 1 0 0 119 1967 0 0 0 1 2 19 31 31 19 0 0 0 103 1968 0 0 0 0 0 19 31 30 26 11 0 0 117 1969 0 0 0 0 6 28 31 31 27 11 0 0 134 1970 0 0 0 1 6 30 31 31 27 3 0 0 129 1971 0 0 0 0 0 21 31 31 25 4 0 0 112 1972 0 0 0 0 0 19 31 31 18 6 0 0 105 1973 0 0 0 0 4 20 31 31 28 2 0 0 116 1974 0 0 0 0 6 26 28 31 24 16 2 0 133 1975 0 0 0 0 11 30 31 31 30 1 0 0 134 1976 0 0 0 2 14 29 31 31 27 12 0 0 146 1977 0 0 0 0 5 23 31 31 28 3 0 0 121 1978 0 0 0 0 5 19 31 31 28 2 0 0 116 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 0 0 0 0 7 28 31 31 17 0 0 0 114 1981 0 0 0 0 *** *** *** 29 23 0 0 0 *** 1982 0 0 *** 0 5 25 26 30 17 0 0 0 *** 1983 0 0 0 0 1 24 30 22 *** *** 0 0 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** 0 2 18 31 31 28 0 0 0 *** 1987 0 0 0 0 8 30 30 30 19 2 0 0 119 1988 0 0 0 0 11 24 31 30 27 0 0 0 123 1989 0 0 0 0 9 26 31 31 15 2 0 0 114 1990 0 0 0 0 13 28 31 31 29 0 0 0 132 1991 0 0 0 0 1 23 31 31 21 0 0 0 107 1992 0 0 0 0 4 16 30 31 18 0 0 0 99 1993 0 0 0 0 0 19 31 31 25 0 0 0 106 1994 0 0 0 0 10 24 31 31 21 0 0 0 117 1995 0 0 0 0 9 24 30 31 16 1 0 0 111 1996 0 0 0 0 5 24 31 31 21 3 0 0 115 1997 0 0 0 0 4 24 31 31 22 0 0 0 112 1998 0 0 0 0 7 29 31 31 22 2 0 0 122 1999 0 0 0 0 12 28 31 31 20 4 0 0 126 2000 0 0 0 0 6 29 31 31 24 0 0 0 121 MEAN 0 0 0 0 6 25 31 31 23 3 0 0 119 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 0 6 0 0 0 0 0 *** 1965 0 0 0 0 0 0 2 0 0 0 0 0 2 1966 0 0 0 0 0 0 0 0 0 0 0 0 0 1967 0 0 0 0 0 0 4 0 0 0 0 0 4 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 0 0 0 0 0 1 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 1 15 5 1 0 0 0 22 1976 0 0 0 0 0 2 10 11 0 0 0 0 23 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 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 0 0 0 *** *** 0 0 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 1 0 0 0 0 0 1 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 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 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 1 0 0 0 0 0 1 MEAN 0 0 0 0 0 0 1 0 0 0 0 0 1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 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 1 0 0 0 0 1 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 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 *** *** *** *** *** *** *** *** *** *** *** *** *** 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 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 0 0 0 *** *** 0 0 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 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 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 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 24 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 -------------- 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1964 *** *** *** *** *** 0 0 0 0 0 3 18 *** 11 28 12 31 1965 23 16 5 4 0 0 0 0 0 0 1 15 64 11 29 4 7 1966 10 9 10 0 0 0 0 0 0 0 3 12 44 11 25 3 31 1967 24 18 16 2 0 0 0 0 0 0 4 15 79 11 25 4 6 1968 20 18 5 0 0 0 0 *** 0 0 1 14 *** 11 19 3 24 1969 21 14 1 2 0 0 0 0 0 0 4 13 55 11 18 4 15 1970 23 14 7 0 0 0 0 0 0 0 1 22 67 11 30 3 25 1971 14 17 5 2 0 0 0 0 0 0 1 19 58 11 20 4 20 1972 30 26 6 0 0 0 0 0 0 0 7 28 97 11 7 3 28 1973 28 13 13 0 0 0 0 0 0 0 11 14 79 11 6 3 26 1974 26 18 1 1 0 0 0 0 0 0 2 15 63 11 26 4 10 1975 18 12 3 0 0 0 0 0 0 0 2 15 50 11 29 3 4 1976 20 18 11 0 0 0 0 0 0 0 1 0 50 11 28 3 17 1977 26 4 2 0 0 0 0 0 0 0 0 6 38 12 10 3 6 1978 9 3 0 0 0 0 0 0 0 0 3 0 15 11 13 2 12 1979 7 0 0 0 0 0 0 0 0 0 0 9 16 12 1 1 27 1980 23 21 9 *** *** *** *** *** *** *** *** *** *** 1 1 3 16 1981 20 11 4 2 0 0 *** 0 0 0 4 2 *** 11 6 4 3 1982 16 25 *** 0 0 0 0 0 0 0 4 18 *** 11 26 2 27 1983 26 13 7 0 0 0 0 0 *** *** 0 6 *** 12 13 3 16 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1986 *** *** *** *** 0 0 0 0 0 0 0 12 *** 12 2 12 31 1987 9 3 5 0 0 0 0 0 0 0 0 8 25 12 7 3 28 1988 15 13 1 0 0 0 0 0 0 0 2 7 38 11 14 3 6 1989 28 16 3 0 0 0 0 0 0 0 0 6 53 12 5 3 31 1990 21 16 0 0 0 0 0 0 0 0 0 5 42 12 23 2 28 1991 6 13 3 0 0 0 0 0 0 0 0 10 32 12 15 3 11 1992 22 19 14 0 0 0 0 0 0 0 4 13 72 11 26 3 26 1993 20 13 4 0 0 0 0 0 0 0 4 0 41 11 14 3 23 1994 3 6 0 0 0 0 0 0 0 0 0 14 23 12 4 2 18 1995 8 3 1 0 0 0 0 0 0 0 4 8 24 11 25 3 27 1996 10 2 0 0 0 0 0 0 0 0 0 0 12 1 15 2 6 1997 5 19 6 2 0 0 0 0 0 0 0 2 34 12 26 4 12 1998 20 10 2 0 0 0 0 0 0 0 0 0 32 1 3 3 21 1999 4 2 0 0 0 0 0 0 0 0 1 1 8 11 29 2 22 2000 20 13 4 0 0 0 0 0 0 0 0 3 40 12 16 3 11 MEAN 17 13 5 0 0 0 0 0 0 0 2 10 47 11 6 4 20 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1964 ****** ****** ****** ****** ****** 27.0 30.6 29.0 26.0 19.1 11.7 6.1 ****** 1965 3.4 6.9 11.3 12.3 22.1 26.1 29.0 30.2 25.2 16.9 13.0 8.1 17.0 1966 9.8 7.5 9.3 14.6 21.3 26.8 28.8 29.5 25.1 17.6 15.6 8.9 17.9 1967 5.2 3.1 7.4 12.2 19.2 23.1 27.7 27.0 23.6 18.2 10.5 6.2 15.3 1968 4.2 4.8 10.3 14.0 18.8 23.1 28.6 25.8 23.9 19.1 11.8 7.5 16.0 1969 4.6 6.5 12.1 12.7 20.1 25.2 27.5 26.8 23.4 18.9 10.7 8.6 16.4 1970 5.0 8.0 10.1 16.4 19.5 25.5 26.7 25.7 24.0 17.9 13.8 5.4 16.5 1971 7.1 4.9 11.3 12.0 19.8 23.9 27.7 25.7 24.6 17.3 10.8 5.0 15.8 1972 2.7 3.6 8.4 14.7 17.0 23.6 26.2 26.3 23.2 18.7 11.0 3.3 14.9 1973 3.2 8.7 9.7 14.3 20.0 25.1 28.4 29.5 24.2 19.8 10.4 6.8 16.7 1974 2.5 3.1 9.5 13.3 20.6 25.9 28.5 27.6 25.0 21.3 14.3 5.6 16.4 1975 4.8 4.9 10.2 16.3 20.6 28.3 31.0 29.7 27.1 19.4 11.4 5.6 17.4 1976 5.2 5.7 7.6 14.4 20.4 27.6 29.4 30.4 25.8 19.1 13.3 9.3 17.3 1977 1.8 11.0 11.9 14.7 20.7 26.6 29.7 30.6 25.8 17.4 11.8 8.0 17.5 1978 7.3 8.4 10.8 14.9 20.9 25.3 31.0 29.4 27.0 20.7 8.7 9.0 17.8 1979 7.0 10.2 10.5 17.6 20.5 26.0 30.6 30.2 29.0 19.8 16.0 6.9 18.7 1980 4.6 6.6 10.1 15.6 20.5 26.3 30.9 28.9 24.3 19.5 13.3 9.0 17.5 1981 6.6 6.2 10.8 15.0 18.2 25.8 ****** 29.4 26.0 19.8 12.6 9.5 ****** 1982 5.8 1.9 ****** 15.1 21.4 27.1 28.3 28.2 25.9 16.4 8.6 4.7 ****** 1983 3.0 5.2 7.5 13.8 21.3 27.3 29.6 28.8 ****** ****** 14.2 7.0 ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 8.4 8.7 7.4 14.9 22.9 27.7 30.1 29.3 25.5 17.4 12.5 5.9 17.6 1988 4.1 4.9 9.2 15.1 21.9 26.4 30.5 29.2 25.7 19.9 11.6 6.6 17.1 1989 1.3 3.2 9.1 17.0 22.6 27.5 32.0 30.0 25.1 20.5 11.3 6.5 17.2 1990 2.2 4.3 10.2 14.5 23.0 28.1 31.1 29.2 26.4 19.3 14.3 8.7 17.6 1991 5.1 5.0 9.6 17.1 20.3 28.0 30.1 29.5 26.0 18.3 13.0 5.5 17.3 1992 0.5 1.3 4.9 13.1 18.9 25.6 29.8 28.9 25.1 19.3 11.2 4.5 15.3 1993 3.4 5.2 8.7 14.1 19.1 26.5 30.9 29.6 26.7 19.5 10.7 9.2 17.0 1994 7.0 5.6 10.2 17.7 22.0 27.0 29.8 29.2 25.8 19.3 11.0 3.7 17.4 1995 7.3 6.9 10.4 14.4 21.9 26.9 30.1 31.0 25.2 19.1 12.1 5.5 17.6 1996 4.9 7.6 8.1 14.5 23.1 27.5 31.9 31.1 26.3 19.1 13.0 9.4 18.0 1997 6.0 3.6 6.3 13.9 21.7 27.3 29.9 29.5 25.4 19.6 11.4 6.6 16.8 1998 2.6 5.6 8.7 16.5 21.9 29.6 31.0 32.4 26.7 20.6 15.6 12.1 18.6 1999 6.5 8.0 10.4 16.2 24.1 28.4 30.5 32.3 25.9 21.2 11.8 9.6 18.8 2000 4.2 6.2 10.1 18.3 22.6 27.8 32.9 31.4 25.4 18.0 11.0 7.2 17.9 MEAN 4.8 5.9 9.4 14.9 20.9 26.5 29.7 29.2 25.5 19.0 12.2 7.1 17.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1964 ****** ****** ****** ****** ****** 2.2 1.7 1.4 -0.9 -2.9 -1.4 -4.0 ****** 1965 -2.1 -5.5 -1.9 1.2 1.9 -0.9 1.4 2.7 -0.5 5.4 1.7 -3.4 0.0 1966 -1.0 -0.3 -0.8 1.9 1.8 -1.4 2.1 1.3 1.4 4.3 -1.3 -3.0 0.4 1967 -2.7 -2.4 -2.7 -0.4 6.1 1.4 3.8 3.7 1.9 3.0 2.9 -1.6 1.1 1968 -2.4 -1.7 -1.6 4.3 7.6 4.7 5.8 2.2 2.5 2.2 3.9 1.4 2.4 1969 -0.7 -0.6 3.5 4.9 7.2 4.8 5.2 6.2 4.6 6.4 1.2 0.0 3.6 1970 -0.6 -1.0 0.4 4.5 3.9 3.1 7.0 5.3 3.3 1.8 2.0 -1.4 2.4 1971 -2.6 -2.0 0.2 4.3 7.9 7.6 10.1 9.3 8.4 3.3 4.5 -1.0 4.2 1972 -1.3 -1.5 2.2 7.9 8.3 9.6 10.1 8.5 5.4 3.3 1.7 -2.0 4.4 1973 -4.4 1.0 -1.1 2.6 3.8 5.2 6.4 8.5 5.0 5.2 -0.4 0.5 2.7 1974 -1.5 -0.5 4.7 3.6 5.7 7.7 5.3 10.7 8.2 4.2 4.3 1.1 4.5 1975 -0.3 0.3 2.0 7.4 9.9 9.6 10.0 14.6 9.1 4.7 4.0 1.2 6.0 1976 1.6 0.4 2.8 7.2 9.9 11.6 11.7 11.8 8.9 3.9 -1.4 -0.1 5.7 1977 -2.9 -1.7 1.5 3.0 4.6 4.1 1.2 3.7 5.3 5.6 4.0 2.4 2.6 1978 2.0 2.2 2.7 2.8 3.7 5.4 12.7 4.2 5.2 4.4 -1.2 2.4 3.9 1979 0.8 2.9 2.3 5.0 8.7 9.0 14.2 15.7 11.4 8.3 5.4 -0.1 7.0 1980 -1.2 0.4 2.1 4.8 5.2 7.5 10.6 8.6 6.8 5.9 4.5 0.9 4.7 1981 -0.3 -0.6 1.8 2.5 4.7 15.6 ****** 14.1 9.3 8.4 0.1 1.0 ****** 1982 -0.4 -3.5 ****** 5.4 6.8 9.5 11.4 9.4 6.1 4.7 -0.7 -2.5 ****** 1983 -3.6 -2.5 0.3 3.3 8.8 14.5 16.4 10.1 ****** ****** 1.1 -1.0 ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 -6.4 -1.8 1.0 -1.1 2.3 -2.1 1.4 0.1 -2.4 3.3 -1.4 -1.1 -0.7 1988 -1.5 -0.3 0.8 2.2 1.5 -2.3 3.3 4.8 0.4 2.1 -2.7 -2.1 0.5 1989 -2.9 -4.7 1.3 2.4 -0.8 -3.1 -1.5 -1.1 -2.3 1.2 3.6 -0.6 -0.7 1990 -3.7 -3.3 -4.0 -1.2 -2.7 2.9 3.4 0.4 -3.3 -2.1 -0.6 -3.4 -1.5 1991 -1.0 -4.0 1.0 -0.1 -3.1 -1.6 2.3 0.6 -4.0 3.8 -0.7 -1.1 -0.6 1992 -5.7 -3.5 -3.1 1.8 2.6 0.9 -1.5 0.7 -6.3 -6.5 -1.3 -1.2 -1.9 1993 -2.9 -4.2 -2.8 2.6 4.8 -1.6 0.1 3.5 -3.0 0.0 0.3 -0.6 -0.3 1994 -1.0 -2.9 -0.7 1.7 -0.9 2.5 4.3 -1.6 1.5 4.9 5.0 -3.6 0.8 1995 -1.1 0.2 1.3 3.4 6.6 6.3 7.7 5.3 2.3 -3.9 -3.8 -1.7 1.9 1996 -0.6 0.3 1.3 3.2 4.5 1.1 2.4 3.7 1.8 0.5 -0.3 0.8 1.5 1997 -2.4 -6.4 -1.9 1.3 1.5 0.6 1.4 1.9 2.9 4.7 4.5 0.9 0.8 1998 -2.3 -2.2 0.3 2.0 2.4 2.7 3.1 1.7 1.5 -2.3 -1.7 -4.2 0.1 1999 -0.9 -1.1 -1.6 -1.0 -1.4 -0.6 3.2 3.5 -0.4 0.6 -1.3 -3.5 -0.4 2000 -3.4 -5.4 -6.7 0.2 -2.0 -1.5 0.1 -1.3 0.3 1.4 1.4 0.5 -1.4 MEAN -1.8 -1.7 0.2 2.8 4.0 4.0 5.4 5.1 2.7 2.7 1.1 -0.9 2.0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1964 ****** ****** ****** ****** ****** 5.34 5.11 5.02 4.18 3.68 4.20 3.42 ****** 1965 3.93 3.18 4.14 4.99 5.42 4.22 5.05 5.52 4.45 6.70 5.20 3.62 4.70 1966 4.31 4.43 4.32 5.18 5.39 4.18 5.20 4.96 5.01 6.25 4.29 3.71 4.77 1967 3.77 3.84 3.74 4.44 7.04 5.02 5.97 5.84 5.20 5.69 5.64 4.04 5.02 1968 3.83 4.03 4.08 6.18 7.78 6.30 6.81 5.32 5.40 5.29 6.00 4.99 5.50 1969 4.34 4.38 5.78 6.44 7.72 6.48 6.71 7.03 6.31 7.08 5.07 4.56 5.99 1970 4.35 4.23 4.71 6.26 6.06 5.59 7.31 6.51 5.67 5.10 5.24 4.11 5.43 1971 3.79 3.96 4.78 6.13 7.79 7.69 9.05 8.73 8.13 5.81 6.28 4.25 6.37 1972 4.15 4.13 5.31 7.82 7.98 8.79 9.12 8.20 6.79 5.66 5.16 3.97 6.42 1973 3.44 4.89 4.24 5.45 5.99 6.53 7.33 8.43 6.42 6.63 4.61 4.69 5.72 1974 4.15 4.44 6.34 5.85 6.79 7.77 6.75 9.92 8.12 6.28 6.14 4.93 6.46 1975 4.46 4.73 5.29 7.59 9.07 9.10 9.03 12.61 8.62 6.39 6.03 4.95 7.32 1976 5.15 4.67 5.68 7.48 9.03 10.31 10.57 10.71 8.67 6.05 4.13 4.70 7.26 1977 3.73 4.25 5.19 5.66 6.42 6.29 5.37 6.55 6.74 6.86 6.05 5.43 5.71 1978 5.24 5.32 5.59 5.70 5.97 6.79 11.39 6.69 6.75 6.26 4.32 5.34 6.28 1979 4.83 5.57 5.38 6.56 8.41 8.72 12.46 13.36 10.57 8.13 6.73 4.54 7.94 1980 4.22 4.68 5.55 6.60 6.69 7.85 9.99 8.53 7.79 6.99 6.32 4.93 6.68 1981 4.46 4.38 5.21 5.81 6.46 13.39 ****** 13.77 8.91 8.16 4.68 4.89 ****** 1982 4.40 3.51 ****** 6.75 7.42 9.00 10.23 8.84 7.93 6.37 4.40 3.76 ****** 1983 3.48 3.78 4.65 5.75 8.45 12.39 14.27 9.75 ****** ****** 4.91 4.32 ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 2.96 4.07 5.00 4.42 5.41 3.87 5.03 4.59 3.87 6.03 4.31 4.36 4.49 1988 4.13 4.44 4.83 5.69 5.05 3.89 5.74 6.38 4.63 5.41 4.03 4.00 4.85 1989 3.67 3.31 5.02 5.50 4.40 3.59 4.00 4.27 3.80 5.01 6.01 4.43 4.42 1990 3.59 3.63 3.67 4.29 3.71 5.63 5.74 4.59 3.55 4.16 4.40 3.66 4.22 1991 4.30 3.71 5.07 4.58 3.79 4.10 5.52 4.78 3.46 6.06 4.42 4.37 4.51 1992 3.12 3.56 3.82 5.27 5.48 4.79 4.17 4.78 3.05 2.85 4.52 4.24 4.14 1993 3.73 3.52 3.83 5.62 6.41 4.04 4.81 5.81 3.79 4.65 4.89 4.50 4.63 1994 4.45 3.75 4.34 5.28 4.29 5.82 6.12 4.07 5.21 6.71 6.62 3.65 5.02 1995 4.34 4.65 5.06 6.00 7.35 7.12 7.85 6.76 5.39 3.55 3.74 4.03 5.49 1996 4.43 4.68 4.98 5.72 6.20 4.91 5.55 5.90 5.25 4.72 4.76 4.84 5.16 1997 3.86 2.91 4.12 5.15 5.01 4.77 4.97 5.13 5.61 6.36 6.25 4.84 4.91 1998 3.89 3.99 4.84 5.25 5.36 5.49 5.60 5.17 5.03 3.89 4.12 3.57 4.68 1999 4.35 4.26 4.11 4.30 4.11 4.29 5.70 5.71 4.45 4.72 4.31 3.73 4.50 2000 3.61 3.12 2.91 4.70 4.07 4.01 4.59 4.13 4.62 5.10 5.07 4.77 4.22 MEAN 4.07 4.12 4.74 5.71 6.26 6.41 7.06 7.01 5.86 5.71 5.08 4.36 5.53 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1964 ****** ****** ****** ****** ****** 7.43 7.13 6.99 5.82 5.11 5.81 4.72 ****** 1965 5.41 4.39 5.73 6.90 7.51 5.87 7.03 7.69 6.20 9.26 7.18 5.00 6.52 1966 5.96 6.11 5.96 7.17 7.48 5.82 7.24 6.91 6.97 8.64 5.94 5.13 6.61 1967 5.19 5.29 5.16 6.13 9.73 6.98 8.30 8.12 7.22 7.88 7.79 5.57 6.95 1968 5.29 5.56 5.65 8.54 10.73 8.73 9.47 7.40 7.50 7.33 8.27 6.88 7.61 1969 5.98 6.04 7.98 8.88 10.66 8.99 9.32 9.76 8.75 9.79 6.99 6.30 8.29 1970 6.00 5.84 6.51 8.65 8.39 7.77 10.15 9.04 7.88 7.07 7.24 5.66 7.52 1971 5.24 5.47 6.61 8.46 10.77 10.65 12.53 12.07 11.25 8.05 8.66 5.86 8.80 1972 5.72 5.69 7.32 10.78 11.01 12.15 12.61 11.35 9.40 7.84 7.12 5.48 8.87 1973 4.75 6.75 5.86 7.54 8.30 9.06 10.16 11.68 8.90 9.17 6.37 6.47 7.92 1974 5.72 6.12 8.74 8.08 9.40 10.77 9.37 13.70 11.24 8.70 8.48 6.79 8.92 1975 6.14 6.51 7.31 10.47 12.51 12.59 12.53 17.36 11.93 8.85 8.32 6.82 10.11 1976 7.10 6.44 7.83 10.31 12.46 14.23 14.58 14.76 11.99 8.38 5.72 6.48 10.02 1977 5.14 5.88 7.17 7.83 8.89 8.73 7.48 9.08 9.34 9.47 8.35 7.48 7.90 1978 7.22 7.34 7.71 7.88 8.27 9.42 15.70 9.28 9.36 8.68 5.96 7.37 8.68 1979 6.67 7.68 7.43 9.07 11.60 12.05 17.14 18.37 14.58 11.22 9.29 6.26 10.95 1980 5.82 6.45 7.65 9.11 9.26 10.87 13.80 11.81 10.77 9.66 8.72 6.81 9.23 1981 6.15 6.04 7.19 8.02 8.93 18.38 ****** 18.82 12.31 11.27 6.47 6.75 ****** 1982 6.07 4.84 ****** 9.32 10.26 12.45 14.13 12.23 10.95 8.81 6.08 5.19 ****** 1983 4.80 5.21 6.42 7.95 11.67 17.04 19.57 13.46 ****** ****** 6.80 5.96 ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 4.10 5.63 6.89 6.12 7.50 5.41 7.01 6.41 5.39 8.33 5.96 6.01 6.23 1988 5.69 6.11 6.66 7.86 7.02 5.43 8.00 8.88 6.45 7.50 5.58 5.52 6.72 1989 5.05 4.57 6.92 7.61 6.12 5.01 5.60 5.96 5.30 6.95 8.29 6.10 6.12 1990 4.94 5.01 5.07 5.94 5.17 7.82 7.99 6.40 4.96 5.77 6.09 5.06 5.85 1991 5.92 5.11 6.99 6.35 5.26 5.72 7.68 6.67 4.82 8.38 6.11 6.02 6.25 1992 4.30 4.91 5.27 7.28 7.59 6.66 5.82 6.66 4.26 3.96 6.25 5.85 5.73 1993 5.15 4.85 5.29 7.76 8.87 5.64 6.71 8.09 5.29 6.44 6.75 6.21 6.42 1994 6.14 5.17 5.99 7.30 5.96 8.07 8.52 5.68 7.23 9.26 9.11 5.03 6.96 1995 5.99 6.41 6.98 8.29 10.17 9.88 10.89 9.39 7.50 4.93 5.17 5.55 7.60 1996 6.10 6.46 6.86 7.90 8.60 6.84 7.73 8.22 7.31 6.55 6.58 6.68 7.15 1997 5.32 4.01 5.68 7.12 6.96 6.64 6.93 7.16 7.79 8.80 8.62 6.68 6.81 1998 5.36 5.50 6.67 7.26 7.44 7.64 7.80 7.22 7.00 5.41 5.71 4.95 6.50 1999 6.00 5.88 5.68 5.96 5.72 5.98 7.94 7.97 6.20 6.55 5.96 5.16 6.25 2000 4.98 4.31 4.04 6.52 5.65 5.59 6.41 5.78 6.43 7.07 6.99 6.58 5.86 MEAN 5.62 5.68 6.54 7.89 8.66 8.89 9.80 9.72 8.13 7.91 7.02 6.01 7.66 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1962 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1963 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1964 ****** ****** ****** ****** ****** 29.72 38.72 35.21 29.73 17.95 8.85 5.03 ****** 1965 2.65 5.91 8.20 8.27 16.47 29.44 34.83 36.84 27.15 10.68 8.19 6.37 16.25 1966 6.73 4.59 6.26 10.16 18.76 31.27 34.35 35.96 26.65 12.28 12.51 6.85 17.20 1967 4.00 2.56 5.55 8.68 13.43 22.90 31.09 29.51 23.46 13.86 5.69 4.37 13.76 1968 3.32 3.50 7.29 8.01 11.73 21.17 31.89 27.92 23.84 16.45 6.08 3.78 13.75 1969 2.75 3.95 6.65 6.63 13.88 24.79 29.63 27.45 21.82 13.47 6.41 5.53 13.58 1970 3.04 5.38 6.46 11.03 15.53 26.53 26.77 26.17 23.61 14.73 9.24 3.74 14.35 1971 5.64 3.63 7.22 6.17 13.11 20.59 26.22 22.30 21.17 12.95 4.80 3.38 12.26 1972 1.92 2.57 4.02 6.48 9.42 18.14 23.51 24.38 20.80 15.12 6.68 2.59 11.30 1973 3.37 5.03 6.83 9.43 16.36 24.79 30.48 31.34 23.03 15.17 7.10 3.86 14.73 1974 1.92 1.82 3.42 8.05 16.09 24.20 31.26 24.90 21.44 18.45 8.98 2.72 13.60 1975 2.80 2.60 5.92 9.19 13.38 27.82 34.71 26.68 26.23 15.08 5.96 2.59 14.41 1976 2.12 3.11 3.24 6.97 12.53 24.82 28.62 30.82 23.12 15.03 10.13 5.70 13.85 1977 2.04 7.84 7.17 9.51 16.30 27.24 35.61 36.43 25.02 11.65 6.00 3.63 15.70 1978 3.25 3.98 5.67 9.58 17.59 24.40 30.29 32.84 27.35 16.63 5.62 4.36 15.13 1979 3.62 4.95 5.65 11.73 13.62 22.63 28.09 25.72 26.53 12.52 9.34 4.05 14.04 1980 2.88 3.60 5.44 9.31 15.98 24.58 32.17 28.88 21.47 13.90 6.94 5.51 14.22 1981 3.89 3.66 6.29 10.13 12.82 15.52 ****** 23.14 22.06 12.47 8.77 5.35 ****** 1982 3.36 2.46 ****** 8.21 15.89 24.13 25.00 26.93 23.18 10.39 5.39 3.55 ****** 1983 2.97 3.91 4.26 8.18 14.10 19.97 23.09 27.38 ****** ****** 9.84 4.40 ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 7.73 6.05 3.75 11.97 21.28 33.24 37.25 35.98 28.42 12.38 9.08 3.56 17.56 1988 2.74 2.71 5.31 9.96 20.56 30.45 37.37 33.15 27.85 16.61 8.82 4.95 16.71 1989 1.83 3.49 5.14 12.76 22.41 33.29 43.65 37.96 28.05 18.17 5.48 3.82 18.00 1990 2.39 3.48 7.78 11.50 24.46 31.34 38.35 35.57 30.57 17.34 10.74 6.86 18.36 1991 3.06 3.87 5.51 14.20 19.34 33.35 36.41 35.95 30.06 13.32 9.33 3.23 17.30 1992 2.20 1.99 3.76 8.35 15.26 26.95 37.46 34.07 28.89 19.08 7.82 2.81 15.72 1993 2.82 4.38 6.52 8.91 14.12 30.04 39.19 34.60 30.68 16.88 6.53 5.64 16.69 1994 4.17 4.13 6.87 13.73 21.33 28.85 34.65 36.33 26.86 13.63 4.14 3.18 16.49 1995 4.54 3.80 5.88 8.64 17.10 26.62 32.97 37.06 25.89 17.89 9.80 3.69 16.16 1996 2.78 4.33 4.17 9.20 20.62 31.14 40.53 38.29 28.11 16.60 8.74 5.39 17.49 1997 4.38 4.30 4.23 9.86 20.15 30.94 36.60 35.58 25.72 14.84 5.15 3.26 16.25 1998 2.21 3.92 5.03 12.50 20.07 35.16 38.60 42.88 29.23 19.76 12.51 9.62 19.29 1999 3.90 5.20 7.34 13.25 25.84 34.05 36.87 41.56 28.57 19.61 8.43 7.25 19.32 2000 3.67 5.54 9.00 15.20 22.85 33.16 44.67 41.67 27.14 14.17 6.45 3.84 18.95 MEAN 3.35 4.01 5.81 9.87 17.04 27.15 33.66 32.40 25.87 15.12 7.81 4.54 15.55 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 22 18 19 19 24 46 53 *** 1965 70 45 45 50 34 19 19 19 21 51 49 49 39 1966 51 61 53 46 31 18 20 18 23 46 34 48 37 1967 60 69 52 45 46 27 24 26 27 41 64 60 45 1968 64 66 47 56 53 34 26 25 28 37 62 67 47 1969 70 63 58 62 48 30 27 30 33 48 56 58 49 1970 70 56 55 49 40 26 31 30 29 37 48 64 45 1971 56 64 51 62 49 38 35 38 37 43 69 68 51 1972 77 72 67 66 60 44 39 36 36 39 56 70 55 1973 62 61 51 50 38 31 28 29 31 40 51 67 45 1974 76 78 74 56 41 34 25 37 36 37 55 74 52 1975 72 74 61 60 54 34 29 42 34 41 63 75 53 1976 79 71 74 65 54 40 36 34 38 40 39 57 52 1977 74 48 52 49 39 27 19 22 30 49 61 69 45 1978 70 67 60 47 35 31 35 22 27 37 55 65 46 1979 66 62 59 45 49 36 40 43 37 51 51 63 50 1980 68 66 60 51 40 32 30 29 35 43 57 59 48 1981 63 64 56 46 43 55 *** 45 37 50 45 57 *** 1982 65 69 *** 54 42 34 37 33 32 48 54 62 *** 1983 65 59 63 51 46 47 47 33 *** *** 44 59 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 39 52 68 39 29 16 18 16 18 45 42 65 37 1988 69 71 59 45 28 17 19 23 20 34 41 60 41 1989 76 61 63 41 25 15 12 15 18 31 63 64 40 1990 69 62 43 39 20 21 19 17 15 29 39 46 35 1991 68 58 59 35 23 16 19 17 16 42 43 66 39 1992 66 73 61 49 38 22 15 18 15 19 49 70 41 1993 66 56 49 52 42 18 16 20 16 31 53 54 39 1994 62 58 51 39 25 24 22 15 23 44 70 63 41 1995 59 66 57 52 40 29 27 22 24 23 36 63 42 1996 70 63 65 50 33 20 17 19 22 32 46 59 41 1997 59 52 61 46 29 19 17 18 25 41 64 69 42 1998 72 62 60 41 31 20 18 16 21 24 34 37 36 1999 63 56 47 35 21 17 19 17 19 28 44 46 34 2000 63 48 34 32 22 16 14 14 21 36 55 67 35 MEAN 66 62 57 49 38 27 25 25 26 38 51 61 44 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 35 29 31 29 34 60 68 *** 1965 79 60 61 62 45 29 28 30 31 62 61 65 51 1966 63 76 66 62 44 26 29 28 31 56 46 59 49 1967 74 79 65 60 60 42 35 41 44 61 80 74 60 1968 78 81 66 68 72 54 39 41 44 54 77 77 63 1969 82 76 72 73 66 48 42 45 50 62 68 73 63 1970 81 72 70 62 56 41 48 47 42 51 61 77 59 1971 70 77 64 75 66 55 50 54 47 55 81 80 65 1972 87 83 80 78 77 63 56 56 55 54 70 83 70 1973 77 74 69 69 57 50 43 40 44 50 65 79 60 1974 86 86 84 68 59 48 36 45 46 52 68 86 64 1975 83 85 77 78 67 44 38 54 46 56 76 86 66 1976 89 84 86 79 69 55 50 46 55 54 51 69 66 1977 88 63 66 64 55 41 30 35 43 62 71 80 58 1978 79 80 71 61 46 42 45 31 38 48 70 75 57 1979 77 74 70 55 60 47 53 57 50 59 61 72 61 1980 79 75 70 62 52 40 41 36 47 51 70 69 58 1981 75 76 68 59 55 61 *** 56 46 59 57 68 *** 1982 75 79 *** 63 52 42 45 41 40 60 65 75 *** 1983 78 69 74 61 54 54 56 42 *** *** 55 71 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 50 64 81 53 40 23 26 23 28 59 53 76 48 1988 79 84 75 59 39 23 27 33 27 45 52 70 51 1989 87 73 77 54 35 22 18 23 24 39 77 79 51 1990 81 75 58 52 28 29 25 24 20 38 49 56 45 1991 81 71 72 46 33 23 27 25 22 55 56 78 49 1992 79 86 75 63 50 32 22 26 23 26 61 84 52 1993 77 69 64 66 57 27 23 27 22 40 65 69 51 1994 75 73 67 54 36 38 32 23 35 55 81 75 54 1995 73 80 71 67 54 40 38 31 34 31 47 76 54 1996 79 75 77 64 44 28 24 25 31 42 57 71 51 1997 72 67 76 60 40 28 26 27 33 52 74 82 53 1998 82 74 74 55 44 27 26 22 30 32 43 46 46 1999 75 71 62 49 31 25 27 23 27 37 56 56 45 2000 76 64 50 44 34 24 19 21 30 48 68 78 46 MEAN 78 75 71 62 51 38 35 36 37 50 63 73 56 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 14 11 11 11 15 34 36 *** 1965 59 32 32 39 23 12 12 12 12 39 37 35 29 1966 40 45 40 33 21 11 13 12 16 37 23 35 27 1967 48 59 38 32 34 16 14 14 16 23 47 47 32 1968 52 54 32 42 34 20 15 14 15 22 45 55 33 1969 59 52 45 52 34 19 17 19 21 34 41 44 36 1970 56 40 41 37 27 16 20 18 18 23 35 49 32 1971 43 53 39 51 35 26 26 28 29 29 55 56 39 1972 65 58 54 51 45 30 25 22 21 22 38 55 41 1973 46 46 36 32 24 19 17 20 19 31 38 54 32 1974 66 69 63 42 27 24 16 27 27 21 41 60 40 1975 59 63 45 41 40 25 21 32 24 25 49 62 41 1976 68 56 61 52 39 27 26 25 24 28 28 44 40 1977 58 35 38 34 26 17 11 13 20 36 49 57 33 1978 61 54 47 34 25 20 26 15 18 29 40 54 35 1979 56 50 48 36 37 28 27 32 26 43 42 55 40 1980 57 55 48 39 28 24 22 23 25 34 46 49 38 1981 51 51 46 35 32 49 *** 34 29 41 32 47 *** 1982 55 60 *** 46 32 27 28 27 26 38 43 48 *** 1983 50 49 51 40 39 40 41 25 *** *** 34 45 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** *** *** *** *** *** *** *** *** *** *** 1987 27 40 54 27 20 10 12 11 11 33 29 54 27 1988 57 59 47 34 21 12 14 16 15 24 29 48 31 1989 62 49 47 29 18 10 9 10 12 23 49 47 30 1990 58 49 29 29 14 16 14 12 10 21 28 35 26 1991 54 44 46 26 15 11 13 11 10 31 28 52 28 1992 53 61 48 39 29 15 10 13 9 12 36 55 32 1993 53 43 35 39 32 12 10 15 10 24 39 40 29 1994 49 44 37 28 18 16 14 10 15 36 58 50 31 1995 45 50 45 39 31 21 19 15 17 16 26 50 31 1996 59 49 52 39 25 14 12 14 15 23 35 46 32 1997 44 38 47 36 21 13 12 13 19 32 52 54 32 1998 62 49 48 30 21 15 13 11 15 16 22 27 27 1999 50 42 35 24 14 11 14 13 13 20 32 34 25 2000 47 33 22 23 14 11 9 8 15 27 42 53 25 MEAN 54 49 44 37 27 19 17 18 18 28 38 48 33 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 1961 *** *** *** *** *** *** *** *** *** *** *** *** *** 1962 *** *** *** *** *** *** *** *** *** *** *** *** *** 1963 *** *** *** *** *** *** *** *** *** *** *** *** *** 1964 *** *** *** *** *** 0 0 0 0 0 6 4 *** 1965 9 1 3 5 3 0 0 0 0 4 3 0 28 1966 6 6 9 5 2 0 0 0 0 5 0 2 35 1967 6 11 4 4 6 0 0 0 0 4 9 4 48 1968 7 6 3 1 7 0 0 0 0 2 7 8 41 1969 14 4 7 9 3 0 0 0 0 3 2 4 46 1970 8 1 6 4 0 0 0 0 0 0 2 3 24 1971 3 5 2 7 1 0 1 0 0 1 10 5 35 1972 3 4 12 4 3 0 0 0 0 0 6 7 39 1973 5 5 3 3 0 0 0 0 1 0 1 7 25 1974 7 9 15 4 0 0 0 0 0 0 3 5 43 1975 6 9 3 4 4 0 0 0 0 0 5 7 38 1976 10 6 10 4 1 0 0 0 0 2 0 5 38 1977 9 2 5 2 1 0 0 0 0 4 1 6 30 1978 2 5 6 0 1 0 0 0 0 0 0 6 20 1979 4 4 6 0 1 0 0 1 0 3 1 9 29 1980 7 7 5 1 1 0 0 0 0 0 7 6 34 1981 5 7 6 4 2 1 *** 0 0 2 3 4 *** 1982 4 9 *** 6 3 0 0 0 0 4 5 4 *** 1983 7 4 8 4 4 0 0 0 *** *** 2 6 *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 *** *** *** *** *** *** *** *** *** *** *** *** *** 1986 *** *** *** 5 2 0 0 0 0 1 8 3 *** 1987 0 5 12 2 2 0 0 0 0 8 4 9 42 1988 6 11 6 3 0 0 0 0 0 1 1 7 35 1989 7 6 13 3 1 0 0 0 0 0 4 4 38 1990 11 6 2 2 0 0 0 0 0 2 1 3 27 1991 6 5 9 3 0 0 0 0 0 3 4 9 39 1992 7 11 10 1 4 0 0 0 0 0 4 8 45 1993 4 4 3 11 5 0 0 0 0 2 4 5 38 1994 7 4 4 5 0 0 0 0 0 4 13 8 45 1995 2 4 4 6 2 0 0 0 0 0 0 3 21 1996 10 7 10 6 0 0 0 0 0 0 3 5 41 1997 5 1 9 6 1 0 0 0 0 1 5 4 32 1998 8 3 8 2 2 0 0 0 0 0 2 0 25 1999 6 4 2 2 0 0 0 0 0 0 1 4 19 2000 6 3 2 1 0 0 0 0 0 3 3 9 27 MEAN 6 5 6 4 2 0 0 0 0 2 4 5 34 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. HIGHEST AND LOWEST LIMITS FOR 40 YEARS DURING 1961-2000 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 17.0 15.4 16.2 22.1 29.0 29.8 34.0 36.4 33.0 25.0 18.0 15.0 1 YEAR - DAY 1971- 3 1977-26 1969-30 1970-18 1975-29 1988-13 1977-28 1966- 9 1978-15 1979-10 1979-12 1999-31 LOW. DRY 03 -12.0 -12.0 -10.0 -2.2 7.0 9.0 13.0 12.0 9.0 4.0 -5.0 -11.4 2 YEAR - DAY 1968-17 1975-11 1976- 1 1997-11 1965- 4 1968- 8 1966- 6 1968- 7 1980-25 1969-31 1964-28 1988-29 HIG. WET 03 10.2 9.2 12.0 15.0 18.0 22.0 26.0 26.0 23.0 16.2 12.8 11.0 3 YEAR - DAY 1994- 4 1977-21 1980-28 1979- 5 1979-29 1981-30 1978-26 1981- 9 1982- 9 1979-10 1997- 3 1991- 9 LOW. WET 03 -13.0 -13.0 -11.0 -3.0 2.2 5.0 7.0 6.0 3.0 1.2 -6.8 -12.0 4 YEAR - DAY 1968-17 1975-11 1976- 1 1997-12 1981- 3 1966-16 1966- 6 1988-31 1992-29 1971- 9 1993-14 1988-29 HIG. DRY 09 22.0 20.0 24.2 30.0 35.2 39.4 41.0 46.0 38.8 39.0 30.0 23.4 5 YEAR - DAY 1971- 2 1973-18 1975-22 1979-12 1999-30 1975-20 1964-13 1975-20 1975- 5 1980- 3 1974- 2 1998-10 LOW. DRY 09 -5.0 -3.4 -0.8 1.0 12.4 18.6 21.0 21.2 19.3 9.5 1.5 -4.0 6 YEAR - DAY 1992- 3 1997- 5 1989-30 1997-11 1997- 5 1978- 1 1968- 1 1968-18 1965-28 1965-26 1964-28 1994- 5 HIG. WET 09 13.6 14.4 18.0 21.0 23.2 31.0 34.0 37.4 30.0 21.0 18.0 15.4 7 YEAR - DAY 1995- 5 1977-16 1980-31 1981-22 1981-31 1994-19 1980-14 1976-10 1980- 9 1975- 1 1989- 2 1980- 9 LOW. WET 09 -6.4 -5.6 -4.4 -1.2 6.0 10.0 11.6 12.2 9.0 6.0 -1.8 -6.0 8 YEAR - DAY 1992- 3 1997- 6 1997- 8 1997-11 1965- 3 1967- 5 1992-12 1982- 8 1992-29 1965-26 1993-14 1994- 5 HIG. DRY 15 18.0 16.2 20.6 26.6 34.0 38.0 38.0 38.0 34.0 29.2 22.0 21.5 9 YEAR - DAY 1966- 2 1996- 8 1999-31 1987-30 1999-30 1983-18 2000-22 1979-27 1998- 1 1974-21 1974- 3 1976- 4 LOW. DRY 15 -8.0 -4.8 -3.8 2.0 9.0 15.0 21.0 18.2 17.0 7.5 0.6 -6.6 10 YEAR - DAY 1977- 7 1992-28 1976- 1 1965- 4 1981- 1 1977-29 1982-27 1967- 7 1972-29 1965-26 1992-25 1988-28 HIG. WET 15 10.0 11.0 14.2 19.0 25.1 26.0 28.7 28.4 27.0 23.4 16.0 17.0 11 YEAR - DAY 1966-25 1973-18 1980-31 1981-24 1969-14 1981-29 1979-15 1981- 8 1979- 3 1994- 8 1966-20 1976- 4 LOW. WET 15 -9.0 -6.3 -4.0 -1.0 4.4 7.0 10.4 10.0 8.0 4.6 -3.4 -7.4 12 YEAR - DAY 1977- 7 1971-14 1976- 1 1965- 4 1981- 1 1967- 5 1974- 5 1967- 7 1992-30 1965-27 1992-26 1988-28 HIG. MIN. 10.4 13.5 12.6 18.8 25.6 28.0 30.6 29.4 27.6 22.4 15.3 13.6 13 YEAR - DAY 1994- 2 1977-27 2000-22 1994-23 1999-29 1998-22 1996-26 1999-22 1996- 1 1996- 2 1988- 4 1990- 5 LOW. MIN. -14.0 -15.0 -11.0 -3.0 3.0 7.0 8.0 8.0 7.5 1.9 -6.2 -12.0 14 YEAR - DAY 1968-17 1974- 5 1976- 3 1981- 2 1966- 7 1967- 5 1972- 2 1972-30 1968- 6 1965-28 1993-14 1988-29 HIG. MAX. 23.1 21.0 25.0 30.2 37.5 40.0 43.0 47.0 40.0 35.2 32.0 27.5 15 YEAR - DAY 1971- 2 1977-16 1970-30 1970-14 1976-28 1975-20 1976-23 1975-20 1975- 5 1974-17 1974- 4 1965- 1 LOW. MAX. -3.0 -0.6 1.8 4.0 14.5 21.2 27.0 28.0 24.0 11.0 3.6 -3.0 16 YEAR - DAY 1992- 3 1992-11 1987-15 1965- 4 1967- 6 1978- 2 1982-31 1968- 3 1996-22 1965-26 1992-26 1988-28 HIG. PPTN 85.0 86.0 72.0 71.0 35.0 6.0 9.5 5.0 30.0 45.0 113.0 57.0 17 YEAR - DAY 1974-29 1991-26 1992-15 1969- 5 1993-13 1981-25 1971-24 1979-31 1973-28 1981-13 1971-18 1967- 4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 40 YEARS DURING 1961-2000 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 16.2 17.4 19.2 21.0 19.8 20.0 19.0 26.0 20.9 22.0 20.1 19.0 18 YEAR - DAY 1976- 1 1976- 3 1975-22 1967-12 1974-25 1976-13 1969- 4 1975-20 1970- 1 1980- 3 1972-24 1969-10 DRY 15 - DRY 09 8.8 10.0 12.8 15.0 18.0 17.5 14.4 19.0 12.9 19.0 13.4 17.0 19 YEAR - DAY 1976- 1 1977-18 1981-28 1967-12 1979- 5 1978-13 1980-15 1975-20 1967-22 1980- 3 1974-11 1974-26 DRY 15 - DRY 03 14.0 12.1 13.0 14.0 15.2 16.0 16.0 17.4 16.8 18.2 11.0 18.0 20 YEAR - DAY 1967-13 1970-20 1975- 9 1979-26 1987-14 1976-13 1968-31 1968- 7 1972- 7 1974-21 1966-25 1969-10 WET 09 - WET 03 14.4 15.4 12.8 12.4 12.2 20.4 16.3 22.4 22.0 15.4 14.0 14.0 21 YEAR - DAY 1977- 9 1975-12 1976- 3 1981-19 1980-15 1994-19 1969-18 1976-10 1980- 9 1988-22 1972-23 1974-26 WET 15 - WET 09 7.4 10.4 8.4 9.8 9.6 16.6 14.0 21.2 17.0 10.2 9.0 12.0 22 YEAR - DAY 1976- 3 1976-14 1981-28 1978-30 1966-24 1994-19 1980-14 1976-10 1980- 9 1994- 8 1972-10 1974-26 WET 15 - WET 03 11.3 11.2 11.0 11.0 14.0 12.2 15.0 13.0 14.2 15.2 9.2 12.8 23 YEAR - DAY 1974-25 1975-12 1975- 9 1988-20 1966-24 1983-13 1974-12 1977-12 1967- 6 1974-21 1972-22 1976- 4 DAY BY DAY DRY 03 12.2 9.6 12.4 11.6 12.8 11.5 13.2 12.1 13.0 10.0 9.3 10.9 24 YEAR - DAY 1992- 3 1975-11 1997- 8 1987-26 1991- 3 1964-17 1967-25 1966-10 1978-16 1979-10 1966-25 1979-16 DAY BY DAY WET 03 10.3 10.6 11.8 8.5 9.0 9.8 14.6 13.0 12.2 8.2 10.8 9.0 25 YEAR - DAY 1992- 3 1997- 6 1997- 8 1965- 4 1966-21 1994- 3 1993- 9 1977- 8 1992-29 2000- 1 1993-29 1965- 2 DAY BY DAY DRY 09 13.2 11.2 10.2 13.1 12.0 11.0 15.0 10.8 13.2 13.6 9.6 11.6 26 YEAR - DAY 1994-16 1966- 2 1976-10 1971-13 1996-19 1976-19 1966-12 1973-27 1976-12 1980- 4 1971-23 1976-11 DAY BY DAY WET 09 7.8 9.0 9.0 9.4 9.0 18.8 15.0 16.4 14.6 9.8 9.0 9.0 27 YEAR - DAY 1981-12 1966- 2 1971-15 1995-28 1978- 1 1994-19 1980-14 1976-10 1980-10 1988-22 1989- 3 1979- 1 DAY BY DAY DRY 15 9.2 10.4 10.4 13.0 11.0 16.0 14.0 13.8 11.6 13.0 10.4 9.0 28 YEAR - DAY 1973-16 1987- 4 2000-24 1994-26 1980-26 1978-14 1980-15 1967-14 1972-30 1974-24 1992-25 1967- 1 DAY BY DAY WET 15 9.0 8.0 9.2 8.6 11.1 10.8 13.0 13.2 12.0 11.8 9.4 11.0 29 YEAR - DAY 1973-16 1965-23 1990-20 1987-19 1969-15 1976-19 1974-12 1977-14 1979-15 1994- 8 1992-25 1976- 4 DAY BY DAY MIN. 11.5 10.6 11.0 12.0 11.0 9.0 11.5 14.0 7.0 9.2 10.5 8.5 30 YEAR - DAY 1966-30 1975-11 1965-13 1976-17 1967-30 1971-23 1967-25 1977- 1 1982-24 2000- 1 1966-14 1966- 3 DAY BY DAY MAX. 10.0 11.0 10.3 13.0 11.0 10.5 7.0 11.0 9.0 10.5 9.5 11.0 31 YEAR - DAY 1977- 4 1966- 2 1971-15 1967-12 1969-15 1976-19 1976- 2 1975-20 1976-26 1969-24 1974- 5 1974-26 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. MEAN AND EXTREMES FOR THE YEAR 1961 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 ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. MEAN AND EXTREMES FOR THE YEAR 1962 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 ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. MEAN AND EXTREMES FOR THE YEAR 1963 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 ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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.***** ***** ***** ***** ***** 24.2 28.5 25.7 24.3 17.6 11.1 5.7 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** 15.0 19.9 15.4 15.2 9.1 4.6 0.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** 33.4 37.2 36.1 33.4 26.1 17.6 11.2 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** 18.4 17.3 20.7 18.2 17.0 13.0 11.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** 5.95 6.06 5.71 4.44 3.50 3.90 3.37 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** 5.15 4.66 4.74 3.83 3.34 4.12 3.17 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** 4.92 4.61 4.60 4.25 4.19 4.59 3.72 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** 7.5 15.5 11.5 12.0 5.5 -5.5 -4.5 ****** DAY ** ** ** ** ** 23 1 10 9 27 28 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** 36.0 42.0 39.5 37.0 31.0 25.0 17.0 ****** DAY ** ** ** ** ** 25 13 14 1 1 17 7 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** 0.0 0.0 0.0 0.0 0.0 18.0 22.0 ****** DAY ** ** ** ** ** ** ** ** ** ** 27 13 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** 0.0 0.0 0.0 0.0 0.0 62.0 57.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** 0.0 0.0 100.0 NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** 0 0 0 0 0 9 5 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** 0 0 0 0 0 9 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** 0 0 0 0 0 1 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** 35 29 31 29 30 53 64 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** 15 11 12 11 15 37 38 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** 18 13 15 17 29 50 56 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** 0 0 0 0 0 2 4 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** 1 6 0 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** 30 31 31 30 2 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** 0 6 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** 0 0 0 0 0 3 18 *** DATE OF START AND END FREEZING START = 28 NOV. END = 31 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 2.8 6.0 10.2 11.1 20.3 24.9 27.4 28.9 24.2 16.4 12.0 7.3 15.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.5 0.3 4.6 5.8 13.7 17.5 19.3 20.8 16.5 10.5 5.7 0.9 9.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.1 11.8 15.7 16.4 27.0 32.2 35.5 37.1 31.9 22.3 18.2 13.8 22.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.6 11.5 11.1 10.6 13.3 14.7 16.2 16.3 15.4 11.8 12.5 12.9 12.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.58 2.93 3.94 4.99 5.58 4.79 5.34 6.30 5.13 7.10 5.04 3.57 4.86 MEAN OF MIXING RATIO AT 09 GMT. 4.07 3.07 3.76 4.75 4.87 3.81 5.31 4.96 3.85 6.50 5.05 3.55 4.46 MEAN OF MIXING RATIO AT 15 GMT. 4.13 3.54 4.74 5.23 5.35 4.05 4.50 5.30 4.38 6.52 5.51 3.74 4.75 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -5.0 -2.0 -2.0 4.5 11.0 14.0 15.5 8.5 1.9 0.0 -7.0 -8.0 DAY 10 25 14 6 7 19 8 31 23 28 29 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 17.5 22.0 25.5 33.5 36.0 40.0 39.5 35.5 27.0 24.5 27.5 40.0 DAY 22 28 8 28 21 3 15 8 2 1 5 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 54.0 7.0 29.0 35.5 19.0 0.0 0.0 0.0 3.5 29.0 93.0 3.5 93.0 DAY 20 5 23 19 2 ** ** ** 28 22 8 28 MONTHLY TOTAL PRECIPITATION IN MM. 215.0 9.0 61.5 95.9 31.0 0.0 0.0 0.0 3.5 64.0 119.0 7.5 606.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.1 20.9 0.6 31.4 NO. OF DAYS WITH PRECIPITATION. 12 3 10 11 3 0 0 0 1 11 5 4 60 NO. OF DAYS PRECIPITATION EQUAL 12 2 9 10 3 0 0 0 1 10 5 4 56 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 8 0 1 3 1 0 0 0 0 2 2 0 17 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 74 54 52 57 41 28 28 30 31 61 57 63 48 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 35 34 42 22 12 13 12 13 41 38 37 30 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 47 50 51 30 17 15 16 19 50 53 46 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 8 1 0 0 0 0 0 0 0 0 0 4 13 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 9 17 2 0 0 0 33 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 13 26 31 31 22 0 0 0 123 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 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. 23 16 5 4 0 0 0 0 0 0 1 15 64 DATE OF START AND END FREEZING START = 29 NOV. END = 7 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 8.4 6.7 8.4 13.4 19.3 25.4 27.5 28.1 23.7 16.9 14.8 7.8 16.7 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.6 1.5 2.7 7.0 11.9 16.8 19.4 20.3 16.3 11.0 7.6 1.5 9.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 14.2 11.9 14.2 19.8 26.7 34.0 35.6 35.9 31.2 22.9 21.9 14.0 23.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.6 10.4 11.5 12.7 14.8 17.2 16.2 15.6 14.9 11.9 14.3 12.5 13.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.84 4.17 3.88 5.27 5.75 4.47 5.37 5.34 4.69 5.65 3.83 3.33 4.63 MEAN OF MIXING RATIO AT 09 GMT. 4.45 4.19 4.05 4.82 4.90 4.28 5.27 4.95 5.19 6.57 4.15 3.67 4.71 MEAN OF MIXING RATIO AT 15 GMT. 4.65 4.92 5.03 5.46 5.53 3.78 4.95 4.58 5.16 6.53 4.88 4.14 4.97 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.5 -1.5 -2.5 1.0 3.0 10.5 12.0 13.0 10.1 6.5 0.0 -5.0 -7.5 DAY 13 8 30 4 7 16 6 1 27 27 25 3 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.5 17.5 20.0 26.5 32.5 39.5 39.5 38.0 37.0 30.5 24.5 22.0 39.5 DAY 1 26 9 28 24 7 27 1 3 6 3 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 40.0 62.0 39.0 18.0 8.0 0.0 0.0 0.0 0.0 25.0 1.5 18.0 62.0 DAY 30 2 13 9 4 ** ** ** ** 25 16 21 MONTHLY TOTAL PRECIPITATION IN MM. 114.0 189.0 210.0 69.0 17.0 0.0 0.0 0.0 0.0 87.0 2.0 31.0 719.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 71.3 12.0 0.0 16.7 NO. OF DAYS WITH PRECIPITATION. 8 10 12 9 3 0 0 0 0 8 2 5 57 NO. OF DAYS PRECIPITATION EQUAL 8 10 12 8 3 0 0 0 0 8 1 5 55 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 4 7 3 0 0 0 0 0 3 0 1 22 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 58 72 60 60 41 26 28 27 31 51 40 56 46 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 43 47 41 33 23 12 15 13 17 40 24 37 29 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 52 64 59 45 29 14 16 15 21 47 38 50 38 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 0 0 0 0 0 0 0 0 0 0 1 3 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 9 12 2 0 0 0 27 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 8 29 31 31 19 1 0 0 119 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. 10 9 10 0 0 0 0 0 0 0 3 12 44 DATE OF START AND END FREEZING START = 25 NOV. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 4.4 2.5 6.3 11.3 18.4 22.2 27.0 26.5 22.9 17.5 10.4 5.4 14.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.5 -2.0 0.6 5.0 12.5 14.0 18.7 18.2 14.9 10.8 5.8 -0.0 8.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.3 7.0 11.9 17.7 24.3 30.4 35.4 34.8 30.9 24.2 15.0 10.7 21.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.8 9.0 11.3 12.7 11.8 16.4 16.7 16.6 16.0 13.4 9.2 10.7 12.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.52 3.24 3.44 4.62 6.91 5.46 5.92 6.46 5.58 6.35 5.66 3.66 5.07 MEAN OF MIXING RATIO AT 09 GMT. 3.74 4.30 3.65 4.30 6.82 4.60 5.70 5.35 4.83 4.53 5.18 4.05 4.75 MEAN OF MIXING RATIO AT 15 GMT. 4.04 3.96 4.12 4.39 7.39 5.01 6.28 5.70 5.18 6.20 6.09 4.40 5.23 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -10.0 -5.0 -1.0 6.5 7.0 13.5 15.5 11.0 7.0 -3.0 -11.0 -11.0 DAY 22 2 29 1 1 5 2 18 30 14 28 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.5 14.0 17.0 30.0 32.0 35.0 41.0 36.5 36.5 29.0 24.5 16.0 41.0 DAY 14 28 21 12 24 15 15 3 15 1 1 15 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.0 54.0 23.0 17.0 26.5 0.0 0.0 0.0 0.0 26.5 70.0 57.0 70.0 DAY 18 17 5 26 6 ** ** ** ** 12 11 4 MONTHLY TOTAL PRECIPITATION IN MM. 82.0 209.5 54.4 40.5 94.5 0.0 0.0 0.0 0.0 59.5 278.0 120.0 938.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 36.9 14.4 0.0 48.8 NO. OF DAYS WITH PRECIPITATION. 6 12 6 5 9 0 0 0 0 4 12 6 60 NO. OF DAYS PRECIPITATION EQUAL 6 12 6 5 9 0 0 0 0 4 12 6 60 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 9 3 1 4 0 0 0 0 2 8 3 35 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 69 59 59 57 41 35 40 42 60 78 72 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 69 41 35 36 16 15 14 16 24 49 50 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 60 69 56 42 46 24 23 22 24 41 66 58 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 8 1 0 0 0 0 0 0 0 0 4 17 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 1 9 2 2 0 0 0 15 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 1 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 2 19 31 31 19 0 0 0 103 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 4 0 0 0 0 0 4 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 18 16 2 0 0 0 0 0 0 4 15 79 DATE OF START AND END FREEZING START = 25 NOV. END = 6 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 3.7 4.1 9.3 13.1 18.4 22.3 27.6 ***** 22.0 18.4 11.2 6.7 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -0.9 -0.7 3.6 7.9 11.9 14.1 19.3 ***** 13.0 10.4 5.3 1.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.3 9.0 15.0 18.4 24.9 30.5 36.1 34.1 31.5 26.4 17.1 12.2 22.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.2 9.7 11.4 10.5 13.0 16.4 16.8 ***** 18.5 16.0 11.9 11.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.48 3.61 4.38 5.68 7.78 6.86 6.82 5.71 5.76 5.14 5.84 4.41 5.46 MEAN OF MIXING RATIO AT 09 GMT. 3.91 4.32 3.71 6.35 7.36 5.96 5.99 5.26 4.92 4.90 5.78 5.21 5.31 MEAN OF MIXING RATIO AT 15 GMT. 4.10 4.15 4.16 6.51 8.18 6.08 7.63 4.99 5.50 5.83 6.37 5.36 5.74 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.0 -10.0 -2.0 2.5 7.0 9.0 11.5 ***** 7.5 3.5 -0.5 -4.5 ****** DAY 17 5 24 26 2 8 11 ** 6 29 19 10 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 18.0 19.5 26.0 28.5 37.0 39.5 37.0 35.5 31.5 21.5 15.0 39.5 DAY 5 29 15 16 21 27 24 15 2 16 8 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 65.0 25.0 20.0 9.5 15.0 4.0 0.0 0.0 0.0 8.0 60.0 44.5 65.0 DAY 7 21 29 19 10 6 ** ** ** 24 27 17 MONTHLY TOTAL PRECIPITATION IN MM. 125.0 87.0 40.0 30.5 77.0 4.0 0.0 0.0 0.0 17.5 185.0 205.9 771.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 32.6 14.4 0.0 52.9 NO. OF DAYS WITH PRECIPITATION. 9 9 4 14 14 1 0 0 0 3 10 10 74 NO. OF DAYS PRECIPITATION EQUAL 9 9 4 11 14 1 0 0 0 3 10 10 71 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 4 2 0 2 0 0 0 0 0 5 7 23 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 71 75 63 62 68 53 38 40 44 52 76 74 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 58 34 49 36 20 15 17 16 23 46 58 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 64 44 56 54 30 26 19 25 38 64 68 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 8 5 0 0 0 0 0 *** 0 0 0 1 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 13 *** 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 1 0 0 0 0 0 0 0 0 0 0 4 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 19 31 30 26 11 0 0 117 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. 20 18 5 0 0 0 0 *** 0 0 1 14 *** DATE OF START AND END FREEZING START = 19 NOV. END = 24 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 3.7 5.3 11.5 11.6 18.7 23.9 26.1 25.9 23.2 19.0 10.4 8.1 15.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.0 -0.2 5.4 6.0 11.2 15.4 16.6 16.5 14.0 11.1 3.0 1.4 8.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.5 10.8 17.5 17.3 26.1 32.4 35.6 35.3 32.4 26.8 17.7 14.7 22.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.5 11.0 12.1 11.3 14.9 17.0 19.0 18.8 18.4 15.7 14.7 13.3 14.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.99 4.03 5.46 5.93 7.57 7.07 6.67 7.07 6.41 6.63 4.49 4.18 5.79 MEAN OF MIXING RATIO AT 09 GMT. 4.40 4.51 5.89 6.52 7.49 6.55 7.30 7.38 6.90 7.18 5.27 4.77 6.18 MEAN OF MIXING RATIO AT 15 GMT. 4.62 4.59 5.99 6.86 8.09 5.83 6.17 6.66 5.62 7.42 5.44 4.75 6.00 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.5 -8.0 -1.0 -1.0 6.0 10.0 13.0 13.0 10.5 3.0 -2.5 -4.0 -13.5 DAY 31 1 24 3 1 16 2 16 22 31 18 15 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 19.0 22.0 27.0 32.0 35.0 39.0 39.0 37.5 33.5 22.5 22.0 39.0 DAY 1 27 19 27 13 10 16 21 7 25 23 12 24 HOUR MAXIMUM PRECIPITATION IN MM. 59.5 12.2 32.0 71.0 23.0 0.0 0.0 0.0 0.0 7.0 23.0 30.0 71.0 DAY 19 16 20 5 6 ** ** ** ** 19 2 26 MONTHLY TOTAL PRECIPITATION IN MM. 312.0 51.1 132.7 222.7 63.0 0.0 0.0 0.0 0.0 23.0 37.0 64.0 905.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 54.8 31.6 0.0 13.7 NO. OF DAYS WITH PRECIPITATION. 15 10 15 13 6 0 0 0 0 6 6 7 78 NO. OF DAYS PRECIPITATION EQUAL 15 10 15 13 6 0 0 0 0 6 5 7 77 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 12 2 5 9 3 0 0 0 0 0 1 3 35 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 72 68 70 62 47 41 44 49 62 67 71 61 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 54 47 53 36 20 19 20 24 35 41 46 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 62 58 63 46 25 22 26 26 48 59 58 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 7 0 0 0 0 0 0 0 0 0 1 11 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 3 2 0 0 0 0 6 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 28 31 31 27 11 0 0 134 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 14 1 2 0 0 0 0 0 0 4 13 55 DATE OF START AND END FREEZING START = 18 NOV. END = 15 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 4.4 6.8 9.4 16.0 18.7 23.8 25.8 24.7 22.5 17.2 13.6 5.0 15.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.7 0.0 3.1 8.8 10.6 14.6 17.5 15.6 13.4 8.6 6.6 -1.0 8.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.4 13.7 15.7 23.2 26.7 32.9 34.1 33.9 31.6 25.8 20.6 10.9 23.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.1 13.7 12.6 14.4 16.1 18.3 16.6 18.3 18.2 17.2 14.0 11.9 15.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.93 3.80 4.37 5.51 5.94 6.03 7.78 6.88 5.69 4.86 4.58 3.66 5.25 MEAN OF MIXING RATIO AT 09 GMT. 4.34 4.23 4.73 6.61 5.94 5.71 7.34 6.41 5.76 4.99 5.35 4.21 5.47 MEAN OF MIXING RATIO AT 15 GMT. 4.78 4.65 5.05 6.66 6.31 5.04 6.82 6.25 5.57 5.46 5.68 4.45 5.56 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.0 -5.0 -0.5 2.0 5.0 10.0 14.0 11.0 9.0 3.4 0.0 -6.0 -7.0 DAY 29 20 15 20 7 1 5 31 14 16 30 15 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 17.5 25.0 30.2 32.6 36.5 36.3 37.5 35.0 30.5 29.6 18.0 37.5 DAY 4 14 30 14 23 28 17 11 1 5 7 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 43.0 15.0 21.5 58.0 0.0 0.0 0.0 0.0 0.0 2.5 26.0 19.0 58.0 DAY 21 6 12 30 ** ** ** ** ** 14 28 9 MONTHLY TOTAL PRECIPITATION IN MM. 170.0 17.5 100.4 107.9 0.0 0.0 0.0 0.0 0.0 2.5 37.0 47.0 482.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 59.7 22.4 0.0 17.9 NO. OF DAYS WITH PRECIPITATION. 11 3 9 6 0 0 0 0 0 1 3 4 37 NO. OF DAYS PRECIPITATION EQUAL 11 3 9 6 0 0 0 0 0 1 3 4 37 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 7 1 5 3 0 0 0 0 0 0 1 3 20 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 69 67 58 53 40 48 47 42 51 58 75 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 58 41 43 39 27 17 20 18 19 23 35 50 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 58 56 50 40 21 25 25 25 38 50 67 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 2 0 0 0 0 0 0 0 0 0 5 11 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 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 1 6 30 31 31 27 3 0 0 129 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 14 7 0 0 0 0 0 0 0 1 22 67 DATE OF START AND END FREEZING START = 30 NOV. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 6.6 4.3 10.3 11.4 19.2 22.6 26.2 24.7 23.3 16.4 10.3 4.3 15.0 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.9 -0.7 4.1 5.5 12.0 14.0 18.0 16.7 14.9 8.1 4.2 -1.3 8.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.3 9.3 16.5 17.4 26.5 31.2 34.5 32.7 31.7 24.8 16.4 9.9 21.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.4 10.0 12.4 11.9 14.5 17.2 16.5 16.0 16.8 16.7 12.2 11.2 13.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.40 3.77 4.62 5.75 8.00 7.87 8.78 8.96 7.11 5.11 5.56 3.82 6.06 MEAN OF MIXING RATIO AT 09 GMT. 3.73 4.07 4.85 6.22 7.67 8.00 9.84 9.23 9.57 6.19 6.55 4.35 6.69 MEAN OF MIXING RATIO AT 15 GMT. 4.25 4.04 4.88 6.42 7.70 7.20 8.54 7.99 7.70 6.15 6.75 4.59 6.35 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.5 -11.0 -4.5 -0.2 8.0 9.2 15.5 11.4 9.5 3.5 0.0 -7.3 -11.0 DAY 19 14 16 19 22 3 20 1 30 9 20 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 23.1 17.0 22.0 26.0 29.0 36.0 38.0 34.8 35.5 30.0 26.0 19.0 38.0 DAY 2 26 25 29 17 14 11 28 10 13 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.5 52.0 56.0 65.5 7.0 0.0 9.5 0.5 0.0 5.0 113.0 31.0 113.0 DAY 16 13 28 13 7 ** 24 4 ** 26 18 29 MONTHLY TOTAL PRECIPITATION IN MM. 49.2 115.0 70.5 171.5 11.7 0.0 10.5 0.5 0.0 5.4 211.2 78.3 723.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 32.4 25.3 1.5 40.7 NO. OF DAYS WITH PRECIPITATION. 5 7 7 13 5 0 2 1 0 2 11 12 65 NO. OF DAYS PRECIPITATION EQUAL 4 7 6 9 4 0 2 0 0 1 11 10 54 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 1 4 0 0 0 0 0 0 6 3 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 64 74 59 72 65 55 49 54 46 51 76 76 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 46 56 42 52 35 27 27 28 30 30 56 58 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 63 51 62 46 33 30 33 36 47 74 72 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 4 1 0 0 0 0 0 0 0 0 10 17 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 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 21 31 31 25 4 0 0 112 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. 14 17 5 2 0 0 0 0 0 0 1 19 58 DATE OF START AND END FREEZING START = 20 NOV. END = 20 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 2.1 2.6 7.3 13.8 15.3 21.4 22.9 22.6 21.7 19.0 10.0 2.5 13.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.1 -3.3 2.4 7.5 8.4 12.5 11.6 11.9 13.0 10.4 2.5 -3.4 5.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.4 8.4 12.3 20.0 22.2 30.2 34.1 33.3 30.3 27.6 17.6 8.3 21.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.5 11.7 9.9 12.5 13.8 17.7 22.5 21.4 17.3 17.2 15.1 11.7 15.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.47 3.45 4.90 7.21 7.86 9.01 8.18 8.98 7.06 5.54 4.64 3.22 6.13 MEAN OF MIXING RATIO AT 09 GMT. 4.67 4.55 5.48 8.14 8.26 8.77 9.69 8.33 7.45 5.42 5.24 4.50 6.71 MEAN OF MIXING RATIO AT 15 GMT. 4.31 4.39 5.54 8.13 7.84 8.59 9.48 7.27 5.85 6.02 5.58 4.20 6.43 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.2 -9.0 -2.0 3.0 3.4 9.4 8.0 8.0 9.0 3.0 -1.0 -7.5 -9.2 DAY 20 10 3 5 3 13 2 30 26 31 21 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.0 16.0 21.0 25.0 29.6 33.4 37.2 36.5 33.5 31.0 23.5 12.0 37.2 DAY 5 16 29 10 25 25 22 10 17 3 1 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 41.4 40.0 47.0 50.0 16.0 4.0 0.0 0.3 0.0 0.0 30.0 20.0 50.0 DAY 22 8 19 23 1 10 ** 23 ** ** 5 12 MONTHLY TOTAL PRECIPITATION IN MM. 88.7 87.0 253.7 101.0 32.1 5.8 0.0 0.5 0.0 0.0 100.0 82.0 750.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 57.2 18.5 0.1 24.2 NO. OF DAYS WITH PRECIPITATION. 7 8 13 10 5 2 0 2 0 0 6 7 60 NO. OF DAYS PRECIPITATION EQUAL 7 7 13 10 5 2 0 0 0 0 6 7 57 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 9 3 1 0 0 0 0 0 3 3 24 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 77 75 73 76 62 55 56 54 52 67 74 67 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 63 56 52 47 30 26 25 25 22 39 62 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 75 70 73 57 40 36 28 29 43 62 74 56 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 14 14 0 0 0 0 0 0 0 0 0 14 42 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 19 31 31 18 6 0 0 105 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 26 6 0 0 0 0 0 0 0 7 28 97 DATE OF START AND END FREEZING START = 7 NOV. END = 28 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 1.9 7.3 7.9 13.2 18.8 23.5 26.6 28.4 23.4 19.5 10.3 6.4 15.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.1 0.8 0.5 6.1 11.1 14.9 18.0 20.1 14.4 11.8 3.5 0.5 8.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.8 13.8 15.2 20.3 26.5 32.1 35.1 36.7 32.4 27.3 17.2 12.3 23.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.9 12.9 14.7 14.2 15.4 17.2 17.1 16.6 18.0 15.5 13.7 11.8 15.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.91 4.32 4.17 5.68 6.43 7.40 7.71 7.46 5.90 5.21 4.08 4.15 5.45 MEAN OF MIXING RATIO AT 09 GMT. 3.67 4.86 4.41 4.99 6.13 6.42 7.85 9.03 6.15 8.26 4.97 4.91 5.97 MEAN OF MIXING RATIO AT 15 GMT. 3.75 5.51 4.15 5.68 5.41 5.77 6.41 8.80 7.20 6.41 4.78 5.01 5.74 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.0 -4.0 -4.0 1.5 6.0 10.0 13.5 17.0 11.5 9.0 -4.0 -7.0 -13.0 DAY 17 7 4 5 2 6 3 29 22 20 25 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 20.5 22.0 27.0 30.0 37.8 41.0 39.0 36.0 30.0 25.0 19.0 41.0 DAY 30 18 2 26 8 28 26 8 12 1 2 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 33.0 23.0 15.0 13.0 0.0 0.0 0.0 0.0 30.0 0.0 9.0 31.0 33.0 DAY 28 22 8 17 ** ** ** ** 28 ** 23 18 MONTHLY TOTAL PRECIPITATION IN MM. 94.5 74.0 38.0 36.0 0.0 0.0 0.0 0.0 30.0 0.0 20.6 102.0 395.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 52.3 9.1 7.6 31.0 NO. OF DAYS WITH PRECIPITATION. 8 7 4 7 0 0 0 0 1 0 5 9 41 NO. OF DAYS PRECIPITATION EQUAL 8 7 4 7 0 0 0 0 1 0 5 9 41 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 4 3 1 0 0 0 0 1 0 0 5 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 71 66 68 56 50 43 37 42 47 60 78 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 47 40 32 26 20 20 22 19 34 39 55 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 66 46 49 31 24 21 29 34 39 54 68 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 1 3 0 0 0 0 0 0 0 1 2 28 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 4 12 0 0 0 0 17 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 4 20 31 31 28 2 0 0 116 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 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 13 13 0 0 0 0 0 0 0 11 14 79 DATE OF START AND END FREEZING START = 6 NOV. END = 26 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 2.1 3.1 9.4 13.0 19.7 24.8 26.8 26.2 23.1 21.4 14.7 6.1 15.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.7 -1.6 5.4 6.5 12.2 17.2 18.8 18.1 15.4 13.0 7.1 0.3 9.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.7 7.8 13.5 19.4 27.1 32.4 34.8 34.3 30.8 29.8 22.2 11.9 22.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.4 9.4 8.1 12.9 14.9 15.2 16.0 16.2 15.4 16.8 15.1 11.6 13.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.24 3.64 5.56 5.51 6.87 7.79 6.60 7.64 7.09 6.08 5.18 4.11 5.78 MEAN OF MIXING RATIO AT 09 GMT. 4.74 5.11 6.85 5.75 6.64 8.72 6.09 10.52 8.89 6.18 6.56 5.38 6.79 MEAN OF MIXING RATIO AT 15 GMT. 4.43 4.56 6.61 6.28 6.85 6.80 7.56 11.60 8.39 6.56 6.67 5.28 6.80 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.0 -15.0 -1.0 0.0 6.0 14.0 11.5 9.5 12.5 9.0 -2.0 -5.0 -15.0 DAY 25 5 1 10 1 8 30 17 24 28 26 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.0 13.0 18.0 26.0 31.0 39.0 39.0 38.5 34.0 35.2 32.0 19.6 39.0 DAY 5 27 28 17 21 22 14 4 2 17 4 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 85.0 59.0 70.0 38.0 4.0 0.0 0.0 0.0 0.0 0.0 10.0 37.0 85.0 DAY 29 26 16 3 4 ** ** ** ** ** 25 4 MONTHLY TOTAL PRECIPITATION IN MM. 217.5 188.5 352.5 80.5 6.0 0.0 0.0 0.0 0.0 0.0 28.0 90.0 963.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 78.8 9.0 0.0 12.3 NO. OF DAYS WITH PRECIPITATION. 11 13 18 5 2 0 0 0 0 0 4 8 61 NO. OF DAYS PRECIPITATION EQUAL 10 13 17 5 2 0 0 0 0 0 4 8 59 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 6 13 3 0 0 0 0 0 0 2 4 33 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 79 79 66 58 48 34 41 42 50 65 82 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 71 77 66 42 28 27 16 28 30 22 41 61 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 79 76 60 38 27 26 41 36 38 58 80 53 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 12 8 0 0 0 0 0 0 0 0 0 1 21 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 8 4 0 0 0 0 15 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 26 28 31 24 16 2 0 133 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 18 1 1 0 0 0 0 0 0 2 15 63 DATE OF START AND END FREEZING START = 26 NOV. END = 10 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 4.8 4.8 10.1 16.5 20.3 27.3 30.3 29.7 26.7 18.8 11.4 5.5 17.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.5 -0.3 2.8 9.0 13.1 18.9 21.7 21.0 17.8 10.8 4.4 0.1 9.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.1 9.9 17.3 23.9 27.4 35.7 38.9 38.3 35.7 26.8 18.3 10.8 24.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.6 10.2 14.5 14.9 14.3 16.8 17.2 17.3 18.0 16.0 13.9 10.7 14.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.69 4.14 4.45 6.94 7.95 7.77 7.90 10.37 7.69 5.59 5.08 4.19 6.31 MEAN OF MIXING RATIO AT 09 GMT. 4.84 5.00 5.56 7.74 10.06 11.07 10.12 15.53 9.40 6.06 6.58 5.33 8.11 MEAN OF MIXING RATIO AT 15 GMT. 4.85 5.04 5.88 8.09 9.21 8.47 9.09 11.94 8.75 7.53 6.42 5.34 7.55 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -15.0 -3.5 3.0 8.0 9.0 19.0 16.0 13.0 7.0 -2.0 -5.0 -15.0 DAY 17 11 2 23 6 11 2 11 27 16 29 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 16.5 25.0 29.0 36.0 40.0 41.0 47.0 40.0 35.0 24.0 16.5 47.0 DAY 14 16 22 6 31 20 13 20 5 1 3 26 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 35.0 12.0 37.0 27.0 0.0 0.0 0.0 0.0 0.0 12.0 38.0 38.0 DAY 3 20 18 19 5 ** ** ** ** ** 16 23 MONTHLY TOTAL PRECIPITATION IN MM. 71.0 146.5 25.0 99.0 53.0 0.0 0.0 0.0 0.0 0.0 63.0 156.0 613.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 39.5 24.8 0.0 35.7 NO. OF DAYS WITH PRECIPITATION. 7 13 4 4 6 0 0 0 0 0 8 8 50 NO. OF DAYS PRECIPITATION EQUAL 7 13 4 4 6 0 0 0 0 0 8 8 50 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 7 1 4 2 0 0 0 0 0 4 6 27 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 79 72 75 64 43 38 52 46 55 74 80 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 67 46 41 44 29 21 35 24 25 50 65 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 77 78 64 63 53 30 27 41 33 43 65 81 55 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 5 0 0 0 0 0 0 0 0 0 4 14 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 22 16 6 0 0 0 52 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 11 30 31 31 30 1 0 0 134 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 15 5 1 0 0 0 22 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 1 0 0 0 0 1 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 18 12 3 0 0 0 0 0 0 0 2 15 50 DATE OF START AND END FREEZING START = 29 NOV. END = 4 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 5.4 6.2 7.6 14.9 20.9 27.3 28.5 28.5 23.1 18.4 13.1 9.3 16.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.6 0.3 1.0 8.1 12.7 17.5 17.9 18.6 12.4 9.6 7.7 4.9 9.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.3 12.1 14.3 21.6 29.2 37.0 39.0 38.3 33.8 27.1 18.5 13.8 24.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.9 11.8 13.3 13.5 16.5 19.5 21.1 19.7 21.3 17.5 10.8 8.9 15.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.92 3.89 4.62 6.95 8.32 8.75 9.21 8.92 8.56 5.94 3.87 4.19 6.43 MEAN OF MIXING RATIO AT 09 GMT. 6.13 5.32 6.53 8.22 9.79 12.96 12.85 13.35 9.72 6.05 3.90 4.70 8.29 MEAN OF MIXING RATIO AT 15 GMT. 5.41 4.82 5.91 7.27 8.98 9.22 9.66 9.87 7.74 6.17 4.63 5.19 7.07 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -5.0 -11.0 2.5 9.0 13.0 13.0 14.0 9.0 3.0 -2.5 0.5 -11.0 DAY 7 12 3 8 15 2 21 31 18 31 28 10 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 17.0 22.5 30.0 37.5 40.0 43.0 42.0 38.0 34.5 25.6 24.0 43.0 DAY 26 3 26 15 28 24 23 6 3 15 6 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 29.0 39.0 23.0 24.0 0.0 0.0 0.0 0.0 10.0 0.0 19.0 39.0 DAY 14 5 1 4 15 ** ** ** ** 29 ** 8 MONTHLY TOTAL PRECIPITATION IN MM. 114.5 85.0 181.0 61.0 24.0 0.0 0.0 0.0 0.0 17.0 0.0 74.0 556.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 68.4 15.3 0.0 16.4 NO. OF DAYS WITH PRECIPITATION. 12 7 12 7 1 0 0 0 0 3 0 8 50 NO. OF DAYS PRECIPITATION EQUAL 12 7 12 7 1 0 0 0 0 3 0 8 50 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 6 4 6 2 1 0 0 0 0 1 0 3 23 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 80 79 78 68 52 47 42 55 53 45 58 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 73 59 66 53 40 35 30 29 29 29 28 49 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 73 75 62 53 33 32 31 30 39 42 63 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 1 4 0 0 0 0 0 0 0 0 0 11 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 4 9 0 0 0 0 15 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 2 14 29 31 31 27 12 0 0 146 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 10 11 0 0 0 0 23 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. 20 18 11 0 0 0 0 0 0 0 1 0 50 DATE OF START AND END FREEZING START = 28 NOV. END = 17 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 2.2 10.8 11.5 13.9 20.2 26.1 28.6 29.4 25.1 17.1 11.5 7.5 17.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.4 5.3 6.4 8.0 14.2 19.4 22.1 22.8 18.5 11.7 5.8 2.7 11.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.8 16.4 16.7 19.9 26.2 32.8 35.1 36.0 31.7 22.4 17.1 12.6 22.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.2 11.1 10.3 11.9 12.0 13.4 13.0 13.2 13.2 10.7 11.3 9.9 11.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.35 3.60 4.49 5.14 6.84 6.71 5.72 5.91 6.71 6.12 4.98 4.50 5.34 MEAN OF MIXING RATIO AT 09 GMT. 4.01 4.49 5.46 5.68 6.29 5.87 4.73 6.32 7.15 7.75 6.42 6.03 5.85 MEAN OF MIXING RATIO AT 15 GMT. 3.84 4.68 5.61 6.17 6.13 6.29 5.67 7.40 6.34 6.70 6.66 5.77 5.94 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.0 -1.0 0.0 4.5 9.0 15.0 17.0 8.0 15.2 5.0 1.0 -1.0 -10.0 DAY 8 10 5 15 1 1 1 1 29 29 13 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 21.0 21.4 24.2 31.5 38.0 39.0 39.5 36.0 30.5 26.0 19.0 39.5 DAY 3 16 17 21 13 18 21 3 6 2 8 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 37.0 9.5 23.0 41.0 30.0 0.0 0.0 0.0 0.0 7.0 42.0 35.0 42.0 DAY 18 3 26 7 23 ** ** ** ** 31 12 14 MONTHLY TOTAL PRECIPITATION IN MM. 170.0 22.5 75.7 62.0 32.0 0.0 0.0 0.0 0.0 31.0 43.0 107.0 543.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 49.4 17.3 0.0 33.3 NO. OF DAYS WITH PRECIPITATION. 9 5 9 5 2 0 0 0 0 7 2 9 48 NO. OF DAYS PRECIPITATION EQUAL 9 5 8 5 2 0 0 0 0 7 2 9 47 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 8 0 3 2 1 0 0 0 0 0 1 4 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 48 55 56 52 36 27 25 39 55 65 72 51 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 40 44 38 30 18 12 16 25 42 49 61 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 55 57 52 35 27 18 24 26 50 67 73 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 8 0 0 0 0 0 0 0 0 0 0 0 8 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 7 22 24 4 0 0 0 58 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 5 23 31 31 28 3 0 0 121 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 4 2 0 0 0 0 0 0 0 0 6 38 DATE OF START AND END FREEZING START = 10 DEC. END = 6 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 6.7 8.1 10.7 14.8 20.5 24.5 29.7 28.1 26.1 20.2 8.2 8.7 17.2 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.4 3.4 5.5 8.8 14.6 18.0 22.8 20.9 20.0 14.5 3.3 4.4 11.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.9 12.9 15.9 20.7 26.4 31.0 36.5 35.2 32.2 25.6 13.1 13.0 22.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.5 9.5 10.4 11.9 11.8 13.0 13.7 14.3 12.2 11.1 9.8 8.6 11.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.24 4.60 4.57 4.76 5.25 6.49 10.62 5.15 6.07 6.18 3.78 4.76 5.54 MEAN OF MIXING RATIO AT 09 GMT. 5.97 5.63 6.49 6.75 5.90 6.58 12.48 8.68 7.07 6.61 4.49 5.57 6.85 MEAN OF MIXING RATIO AT 15 GMT. 5.56 5.72 5.70 5.73 6.75 7.31 11.08 6.05 7.10 6.00 4.68 5.70 6.45 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.5 -2.5 0.5 4.4 9.0 11.0 15.0 18.0 16.0 9.0 -0.5 1.0 -3.5 DAY 14 11 14 15 3 2 6 6 5 21 13 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 19.0 20.0 27.0 31.5 37.0 39.5 38.0 36.0 30.0 19.0 17.0 39.5 DAY 26 6 27 4 26 8 14 8 14 1 9 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 50.0 35.0 32.0 2.0 10.0 0.0 0.0 0.0 0.0 0.0 3.0 47.0 50.0 DAY 4 21 5 26 6 ** ** ** ** ** 11 10 MONTHLY TOTAL PRECIPITATION IN MM. 65.0 99.0 107.5 2.0 14.0 0.0 0.0 0.0 0.0 0.0 11.5 128.5 427.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 63.5 3.7 0.0 32.7 NO. OF DAYS WITH PRECIPITATION. 2 6 9 1 2 0 0 0 0 0 4 9 33 NO. OF DAYS PRECIPITATION EQUAL 2 6 9 1 2 0 0 0 0 0 4 9 33 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 4 6 0 1 0 0 0 0 0 0 3 16 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 74 63 51 40 37 41 24 32 46 58 69 51 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 56 53 41 26 23 30 22 22 30 47 55 39 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 71 63 49 39 33 33 21 28 35 59 70 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 8 22 15 11 0 0 0 57 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 5 19 31 31 28 2 0 0 116 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. 9 3 0 0 0 0 0 0 0 0 3 0 15 DATE OF START AND END FREEZING START = 13 NOV. END = 12 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 2.2 4.9 5.2 12.1 15.0 19.6 23.0 23.0 20.8 14.0 10.4 0.9 12.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.07 4.94 4.47 5.77 8.06 8.44 12.28 13.38 10.36 7.07 5.46 3.82 7.34 MEAN OF MIXING RATIO AT 09 GMT. 5.26 5.73 6.09 7.83 8.98 9.85 13.62 14.29 12.09 9.10 7.84 5.21 8.82 MEAN OF MIXING RATIO AT 15 GMT. 5.15 6.04 5.59 6.07 8.03 7.61 11.47 12.39 9.27 8.26 6.89 4.58 7.61 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.0 2.0 1.0 5.0 11.0 15.0 19.5 18.0 17.0 9.0 7.0 -7.0 -7.0 DAY 11 5 4 14 6 1 8 19 26 29 6 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 40.0 40.0 40.0 3.0 10.0 0.0 0.0 5.0 0.0 22.0 10.0 25.0 40.0 DAY 21 9 26 11 6 ** ** 31 ** 27 30 1 MONTHLY TOTAL PRECIPITATION IN MM. 76.0 66.0 99.0 3.0 17.0 0.0 0.0 7.5 0.0 51.0 10.0 157.0 486.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 49.5 4.1 1.5 44.8 NO. OF DAYS WITH PRECIPITATION. 4 4 6 1 3 0 0 2 0 4 1 11 36 NO. OF DAYS PRECIPITATION EQUAL 4 4 6 1 3 0 0 2 0 4 1 11 36 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 3 0 1 0 0 0 0 3 1 8 20 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 66 62 49 56 44 50 54 46 52 53 64 56 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 51 53 43 40 31 33 36 32 45 49 61 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 70 60 43 50 32 36 40 32 54 53 64 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 3 3 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 9 22 24 15 0 0 0 71 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. 7 0 0 0 0 0 0 0 0 0 0 9 16 DATE OF START AND END FREEZING START = 1 DEC. END = 27 JAN. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 3.5 5.3 6.4 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -1.6 -0.6 0.2 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.6 11.2 14.6 21.1 26.4 32.9 37.1 34.4 30.9 24.3 18.0 14.6 22.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.2 11.8 14.4 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.55 3.88 4.41 5.58 5.77 6.11 7.37 6.48 5.70 5.54 5.99 4.07 5.37 MEAN OF MIXING RATIO AT 09 GMT. 4.82 5.23 6.78 7.94 7.57 10.06 12.98 10.96 10.84 8.53 6.98 5.70 8.20 MEAN OF MIXING RATIO AT 15 GMT. 4.30 4.93 5.45 6.29 6.73 7.39 9.62 8.15 6.85 6.88 5.98 5.03 6.47 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.0 -6.0 -9.0 ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY 17 1 4 ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.0 16.0 25.0 26.0 33.0 37.0 39.0 38.0 36.0 28.5 24.0 27.0 39.0 DAY 6 16 31 10 23 30 6 4 2 2 16 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 60.0 30.0 35.0 12.0 11.0 0.0 0.0 0.0 0.0 0.0 45.0 40.0 60.0 DAY 22 25 1 2 5 ** ** ** ** ** 9 13 MONTHLY TOTAL PRECIPITATION IN MM. 140.0 151.0 108.0 13.0 11.0 0.0 0.0 0.0 0.0 0.0 96.0 137.0 656.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 60.8 3.7 0.0 35.5 NO. OF DAYS WITH PRECIPITATION. 9 10 6 2 1 0 0 0 0 0 9 6 43 NO. OF DAYS PRECIPITATION EQUAL 9 10 6 2 1 0 0 0 0 0 9 6 43 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 7 5 1 1 0 0 0 0 0 2 5 25 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 71 70 60 53 45 31 28 29 41 44 68 65 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 59 60 47 32 29 30 30 35 40 50 51 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 69 58 52 42 35 33 29 31 44 54 61 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 2 5 *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 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 7 28 31 31 17 0 0 0 114 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 21 9 *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = 1 JAN. END = 16 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 5.4 5.9 9.8 14.3 ***** ***** ***** 28.2 23.7 18.8 11.4 9.0 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -0.3 1.3 4.3 8.3 10.8 18.3 ***** 21.8 15.9 13.1 5.2 4.0 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.2 10.5 15.4 20.3 ***** ***** ***** 34.6 31.6 24.6 17.5 13.9 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.5 9.2 11.1 12.0 ***** ***** ***** 12.8 15.7 11.5 12.3 9.9 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.62 3.84 4.68 4.84 5.63 11.18 ***** 10.69 7.70 7.15 4.35 4.11 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.79 4.57 5.72 6.58 8.00 15.85 ***** 16.16 11.12 8.87 4.84 5.38 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.96 4.86 5.23 6.11 7.09 12.95 ***** 14.45 7.96 8.47 4.73 5.12 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.0 -4.0 -2.5 -3.0 5.5 10.0 ***** 15.0 11.0 10.0 -1.5 0.0 ****** DAY 4 3 4 2 2 6 ** 29 25 13 23 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 14.5 23.0 29.0 ***** ***** ***** 37.0 36.4 29.0 23.0 17.0 ****** DAY 9 13 21 22 ** ** ** 1 9 1 1 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 30.0 40.0 29.0 14.0 11.0 6.0 ***** 0.0 0.0 45.0 37.0 20.0 ****** DAY 21 9 28 1 1 25 ** ** ** 13 29 26 MONTHLY TOTAL PRECIPITATION IN MM. 80.0 123.0 123.0 43.0 33.0 6.0 ***** 0.0 0.0 60.0 51.0 42.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 58.1 14.6 0.0 27.3 NO. OF DAYS WITH PRECIPITATION. 7 7 10 5 6 1 *** 0 0 6 5 5 *** NO. OF DAYS PRECIPITATION EQUAL 7 7 10 5 6 1 *** 0 0 6 5 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 5 5 2 1 0 *** 0 0 1 1 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 69 64 51 49 57 *** 47 42 55 51 61 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 55 50 39 39 52 *** 42 35 43 37 50 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 66 70 55 46 45 55 *** 46 33 52 46 60 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 *** 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 *** 23 1 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** *** 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** *** *** 29 23 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. 20 11 4 2 0 0 *** 0 0 0 4 2 *** DATE OF START AND END FREEZING START = 6 NOV. END = 3 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 5.3 1.6 ***** 14.7 21.4 25.3 26.9 26.9 24.6 15.4 8.1 4.4 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 0.7 -3.0 ***** 10.1 16.2 18.9 20.5 20.1 18.5 10.0 3.9 -0.1 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.8 6.0 ***** 19.3 26.7 31.8 33.2 33.6 30.6 21.3 12.5 8.9 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.1 9.0 ***** 9.2 10.5 12.9 12.7 13.5 12.1 11.3 8.6 9.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.70 3.10 ***** 6.20 7.37 8.25 9.46 8.08 7.05 5.82 3.53 3.39 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.85 3.85 ***** 7.31 7.69 9.40 11.50 9.44 9.00 6.51 4.76 3.72 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.62 3.58 ***** 6.71 7.20 9.34 9.74 8.99 7.73 6.80 4.92 4.18 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.0 -10.5 ***** 4.0 11.0 13.0 17.0 16.0 13.0 5.0 -0.5 -3.5 ****** DAY 20 18 ** 1 5 2 7 2 22 10 30 10 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 14.0 ***** 26.5 31.5 35.0 37.0 37.0 35.0 25.0 17.0 13.0 ****** DAY 4 26 ** 30 29 16 12 20 6 3 4 20 24 HOUR MAXIMUM PRECIPITATION IN MM. 34.0 55.0 ***** 24.0 27.0 0.0 0.0 0.0 2.0 26.0 43.0 21.0 ****** DAY 16 22 ** 7 5 ** ** ** 30 23 25 6 MONTHLY TOTAL PRECIPITATION IN MM. 79.0 279.0 ***** 91.0 44.0 0.0 0.0 0.0 2.0 68.0 105.0 62.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 49.0 18.5 0.3 32.2 NO. OF DAYS WITH PRECIPITATION. 5 9 *** 6 4 0 0 0 1 7 6 5 *** NO. OF DAYS PRECIPITATION EQUAL 5 9 *** 6 4 0 0 0 1 7 6 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 7 *** 4 1 0 0 0 0 3 4 3 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 67 74 *** 56 48 39 42 40 37 54 52 69 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 63 *** 51 35 30 34 27 29 40 50 51 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 69 *** 56 43 35 34 31 30 51 62 66 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 10 *** 0 0 0 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 *** 0 0 7 13 12 7 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 *** 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** 0 5 25 26 30 17 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. 16 25 *** 0 0 0 0 0 0 0 4 18 *** DATE OF START AND END FREEZING START = 26 NOV. END = 27 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 2.5 5.0 7.0 13.4 20.3 25.8 28.5 26.6 ***** ***** 13.3 7.1 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -1.6 0.8 2.6 8.6 15.3 19.9 21.7 19.8 ***** ***** 8.2 2.5 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.9 9.1 11.5 18.1 25.3 31.7 35.3 33.6 ***** ***** 18.5 11.7 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.5 8.3 8.9 9.5 10.0 11.8 13.6 13.8 ***** ***** 10.3 9.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.10 3.24 4.21 5.10 7.45 10.60 11.39 8.88 ***** ***** 4.66 4.02 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.40 4.05 4.93 6.17 9.53 14.09 16.12 10.62 ***** ***** 5.27 4.23 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.95 4.01 4.81 6.00 8.39 12.47 15.47 9.75 ***** ***** 4.81 4.76 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -4.4 -2.0 3.5 10.0 15.0 18.0 14.4 ***** ***** 4.4 -1.0 ****** DAY 27 1 6 1 8 13 26 25 ** ** 28 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 13.0 19.0 24.0 31.0 35.0 39.0 39.0 ***** ***** 25.0 18.0 ****** DAY 31 14 28 30 31 17 11 1 ** ** 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 40.0 29.0 20.0 12.0 0.0 0.0 0.0 ***** ***** 25.0 50.0 ****** DAY 24 4 30 22 16 ** ** ** ** ** 27 9 MONTHLY TOTAL PRECIPITATION IN MM. 87.0 88.0 123.0 59.0 39.0 0.0 0.0 0.0 ***** ***** 51.0 139.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.9 16.7 0.0 32.4 NO. OF DAYS WITH PRECIPITATION. 7 4 10 7 5 0 0 0 *** *** 4 8 *** NO. OF DAYS PRECIPITATION EQUAL 7 4 10 7 5 0 0 0 *** *** 4 8 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 6 3 6 2 2 0 0 0 *** *** 2 5 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 61 68 53 49 51 48 37 *** *** 50 67 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 53 54 57 45 44 44 47 30 *** *** 38 48 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 62 63 54 45 46 47 32 *** *** 42 63 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 1 0 0 0 0 0 0 *** *** 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 11 18 12 *** *** 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** *** 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 24 30 22 *** *** 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. 26 13 7 0 0 0 0 0 *** *** 0 6 *** DATE OF START AND END FREEZING START = 13 DEC. END = 16 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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 ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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.***** ***** ***** ***** 18.9 24.1 30.6 30.3 26.7 20.3 8.8 5.0 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** 13.2 17.5 24.2 24.6 20.5 15.0 4.7 0.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** 19.7 24.5 30.7 36.9 36.0 32.9 25.6 12.9 9.1 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** 11.3 13.2 12.7 11.4 12.4 10.6 8.2 8.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** 6.45 4.78 3.81 4.07 4.07 2.95 4.75 5.11 3.45 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** 6.95 5.16 3.79 4.54 4.23 3.44 5.12 6.09 4.03 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** 8.6 12.2 20.4 21.2 16.2 9.6 0.3 -4.0 ****** DAY ** ** ** ** 14 22 1 29 30 26 11 3 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** 23.3 30.7 34.9 38.6 39.9 35.4 29.0 23.0 16.6 ****** DAY ** ** ** 24 20 30 12 1 5 2 1 24 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** 29.0 11.0 0.0 0.0 0.0 0.0 11.1 55.0 13.0 ****** DAY ** ** ** 10 3 ** ** ** ** 21 4 2 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** 92.6 24.5 0.0 0.0 0.0 0.0 14.2 143.3 46.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** 36.5 0.0 63.5 NO. OF DAYS WITH PRECIPITATION. *** *** *** 11 9 0 0 0 0 4 12 10 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** 8 6 0 0 0 0 3 10 8 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** 3 1 0 0 0 0 1 5 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** 46 25 14 10 11 9 23 53 46 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** 52 29 14 12 12 12 28 74 66 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** 0 0 0 0 0 0 0 2 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** 0 1 30 30 13 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 2 18 31 31 28 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. *** *** *** *** 0 0 0 0 0 0 0 12 *** DATE OF START AND END FREEZING START = 2 DEC. END = 31 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 7.5 8.6 7.5 14.2 22.2 26.2 29.2 28.5 24.8 17.4 12.2 5.9 17.0 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.6 3.8 3.6 8.5 16.4 19.2 22.5 22.1 18.6 12.5 6.7 1.8 11.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.7 13.4 11.5 19.9 28.0 33.2 35.9 34.9 31.1 22.3 17.9 10.1 22.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.1 9.6 7.9 11.4 11.6 14.0 13.4 12.8 12.5 9.8 11.2 8.3 11.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.76 3.75 4.76 4.19 5.50 4.15 5.34 4.72 4.35 5.78 4.01 3.89 4.43 MEAN OF MIXING RATIO AT 09 GMT. 2.87 3.89 4.79 4.44 5.05 3.75 4.71 4.25 3.52 5.54 4.15 4.50 4.29 MEAN OF MIXING RATIO AT 15 GMT. 3.57 4.58 5.43 4.64 5.67 3.72 5.05 4.81 3.75 6.77 4.76 4.68 4.79 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.2 -0.8 -2.2 1.6 9.8 15.0 17.8 14.3 14.4 7.8 1.4 -4.2 -4.2 DAY 2 11 20 1 26 11 10 27 21 31 28 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.2 19.6 16.0 29.5 31.0 37.2 38.8 38.2 36.2 30.0 22.4 15.4 38.8 DAY 18 1 3 30 29 27 18 6 9 3 17 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.0 36.0 50.0 6.0 10.0 0.0 2.0 1.0 0.0 28.4 18.0 56.0 56.0 DAY 7 5 4 4 5 ** 31 1 ** 24 2 23 MONTHLY TOTAL PRECIPITATION IN MM. 8.1 101.6 283.0 21.4 27.4 0.0 2.8 1.0 0.0 125.6 48.0 201.4 820.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.9 5.9 0.5 45.7 NO. OF DAYS WITH PRECIPITATION. 5 11 23 8 7 0 2 1 0 15 5 11 88 NO. OF DAYS PRECIPITATION EQUAL 2 10 20 6 6 0 1 1 0 11 4 10 71 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 3 10 0 1 0 0 0 0 5 2 7 28 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 48 60 78 50 37 23 26 23 28 53 50 72 46 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 32 41 56 32 22 11 12 11 12 34 30 57 29 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 50 55 70 33 27 12 15 15 15 49 45 67 38 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 1 6 28 19 4 0 0 0 58 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 8 30 30 30 19 2 0 0 119 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. 9 3 5 0 0 0 0 0 0 0 0 8 25 DATE OF START AND END FREEZING START = 7 DEC. END = 28 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 4.6 5.1 9.3 14.5 20.8 25.3 29.3 28.2 24.8 19.6 11.5 6.7 16.6 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.8 0.8 5.3 9.2 14.4 18.6 22.0 20.9 18.0 14.2 6.5 2.3 11.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.4 9.4 13.2 19.9 27.2 32.0 36.6 35.5 31.7 25.1 16.5 11.1 22.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.6 8.6 7.9 10.7 12.8 13.4 14.6 14.6 13.7 10.9 10.0 8.8 11.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.73 4.04 4.86 4.72 4.94 3.78 5.62 6.57 4.25 5.13 4.02 3.79 4.62 MEAN OF MIXING RATIO AT 09 GMT. 4.06 4.56 4.62 5.81 4.96 3.76 5.67 6.40 4.59 5.33 3.81 3.95 4.79 MEAN OF MIXING RATIO AT 15 GMT. 4.59 4.71 4.99 6.54 5.26 4.14 5.93 6.17 5.04 5.77 4.27 4.27 5.14 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.4 -2.2 -3.0 3.4 6.5 16.0 19.8 15.0 14.4 6.6 -2.0 -12.0 -12.0 DAY 20 25 6 1 4 2 1 31 13 31 14 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.8 14.4 19.2 25.4 32.0 39.0 39.4 39.0 36.0 29.6 22.3 20.6 39.4 DAY 11 27 30 19 23 13 31 1 15 1 7 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 19.0 48.0 19.0 2.0 0.0 0.0 0.0 0.0 7.2 5.0 48.0 48.0 DAY 18 9 3 25 1 ** ** ** ** 15 9 17 MONTHLY TOTAL PRECIPITATION IN MM. 82.3 128.4 101.4 53.3 2.4 0.0 0.0 0.0 0.0 11.6 14.0 154.2 547.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 57.0 10.2 0.0 32.8 NO. OF DAYS WITH PRECIPITATION. 15 15 10 12 2 0 0 0 0 4 10 9 77 NO. OF DAYS PRECIPITATION EQUAL 13 15 8 9 1 0 0 0 0 3 5 8 62 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 6 3 2 0 0 0 0 0 0 0 4 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 74 81 73 53 39 22 27 33 26 42 49 67 49 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 58 64 50 37 22 13 14 18 15 26 30 50 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 69 56 46 24 15 16 18 19 34 43 62 40 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 4 5 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 26 14 2 0 0 0 46 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 2 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 11 24 31 30 27 0 0 0 123 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. 15 13 1 0 0 0 0 0 0 0 2 7 38 DATE OF START AND END FREEZING START = 14 NOV. END = 6 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 1.4 3.3 9.1 16.4 21.8 26.2 30.8 29.0 24.4 20.2 11.3 6.4 16.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.0 -1.1 4.4 10.8 16.1 19.4 23.9 22.2 17.8 14.7 6.8 2.1 11.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.8 7.6 13.8 22.1 27.4 33.0 37.7 35.8 30.9 25.7 15.8 10.7 22.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.8 8.7 9.4 11.3 11.3 13.6 13.8 13.6 13.1 11.0 9.0 8.6 11.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.32 2.97 4.71 5.27 4.79 3.89 4.08 4.54 3.64 4.59 5.53 4.18 4.29 MEAN OF MIXING RATIO AT 09 GMT. 3.74 3.38 4.75 5.10 4.18 3.44 3.79 4.18 3.65 4.92 6.03 4.12 4.27 MEAN OF MIXING RATIO AT 15 GMT. 3.94 3.59 5.60 6.11 4.24 3.44 4.15 4.09 4.13 5.51 6.47 4.97 4.69 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.0 -9.2 -4.4 1.0 10.4 15.4 20.8 19.0 13.0 8.2 1.4 -3.0 -9.2 DAY 17 15 30 1 9 2 13 12 29 22 21 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.6 17.0 22.2 27.4 33.0 37.8 40.6 38.2 36.4 31.8 20.8 15.2 40.6 DAY 19 28 7 16 24 27 20 26 2 6 4 24 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.0 27.0 26.0 14.0 17.7 0.0 0.0 0.0 0.0 3.1 55.0 53.8 55.0 DAY 17 13 14 11 7 ** ** ** ** 30 14 1 MONTHLY TOTAL PRECIPITATION IN MM. 61.3 83.3 163.6 40.3 17.7 0.0 0.0 0.0 0.0 4.5 125.9 101.3 597.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 51.5 9.7 0.0 38.8 NO. OF DAYS WITH PRECIPITATION. 9 12 20 7 1 0 0 0 0 2 10 8 69 NO. OF DAYS PRECIPITATION EQUAL 8 9 16 7 1 0 0 0 0 2 8 7 58 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 4 5 1 1 0 0 0 0 0 3 3 20 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 66 71 52 35 22 18 23 24 36 71 73 48 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 54 51 29 20 11 9 11 13 24 51 49 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 62 66 42 20 11 11 12 16 33 66 71 41 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 11 4 1 0 0 0 0 0 0 0 0 0 16 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 7 30 22 5 0 0 0 65 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 9 26 31 31 15 2 0 0 114 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 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 16 3 0 0 0 0 0 0 0 0 6 53 DATE OF START AND END FREEZING START = 5 DEC. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 2.2 4.1 9.6 13.5 21.7 26.5 30.4 28.4 25.7 19.0 14.2 8.7 17.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.3 -0.0 4.5 8.0 15.4 19.4 24.7 21.9 19.1 13.7 9.2 4.4 11.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.6 8.3 14.8 19.0 28.1 33.6 36.1 34.8 32.3 24.2 19.2 13.1 22.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.9 8.3 10.3 11.0 12.7 14.2 11.4 12.9 13.2 10.5 10.0 8.7 10.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.27 3.42 3.42 4.29 3.77 5.04 5.72 4.72 3.32 4.14 4.14 3.42 4.06 MEAN OF MIXING RATIO AT 09 GMT. 3.57 3.45 3.40 3.93 3.51 6.00 5.60 4.45 3.36 4.03 4.12 3.53 4.08 MEAN OF MIXING RATIO AT 15 GMT. 3.92 4.03 4.17 4.67 3.85 5.84 5.89 4.59 3.97 4.30 4.94 4.04 4.52 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.6 -2.6 0.8 2.4 9.0 14.8 18.8 18.6 17.0 7.8 2.2 -3.0 -10.6 DAY 25 24 19 5 7 20 3 10 7 29 13 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.6 12.6 19.4 26.8 34.2 37.4 39.0 39.8 34.4 29.0 23.6 20.4 39.8 DAY 13 27 10 27 21 24 17 14 9 7 5 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 24.0 39.7 45.0 38.0 0.2 0.0 0.0 0.0 0.0 32.0 20.0 24.0 45.0 DAY 24 2 11 2 11 ** ** ** ** 28 11 24 MONTHLY TOTAL PRECIPITATION IN MM. 132.6 129.3 54.7 59.0 0.2 0.0 0.0 0.0 0.0 44.8 25.0 53.0 498.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 63.5 11.9 0.0 24.6 NO. OF DAYS WITH PRECIPITATION. 18 10 5 4 1 0 0 0 0 3 4 4 49 NO. OF DAYS PRECIPITATION EQUAL 16 10 4 4 0 0 0 0 0 2 2 3 41 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 5 1 2 0 0 0 0 0 2 1 3 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 70 50 50 28 27 25 24 20 36 46 52 42 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 52 33 31 15 19 15 12 11 23 29 37 28 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 65 44 35 17 19 16 14 14 28 43 49 35 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 0 0 0 0 0 0 0 0 0 0 0 7 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 7 27 23 1 0 0 0 60 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 13 28 31 31 29 0 0 0 132 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 16 0 0 0 0 0 0 0 0 0 5 42 DATE OF START AND END FREEZING START = 23 DEC. END = 28 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 5.0 4.8 9.2 16.4 19.5 26.9 29.0 28.8 25.5 18.1 13.0 5.5 16.8 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.4 0.7 5.1 11.1 13.7 21.0 22.3 22.4 19.5 13.2 8.3 1.8 11.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.7 9.0 13.3 21.7 25.2 32.8 35.6 35.1 31.5 22.9 17.7 9.2 21.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.3 8.3 8.2 10.6 11.5 11.8 13.3 12.7 12.0 9.7 9.4 7.4 10.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.82 3.62 4.70 4.64 4.00 4.56 5.59 5.02 3.54 6.03 4.32 4.01 4.49 MEAN OF MIXING RATIO AT 09 GMT. 4.13 3.51 4.83 4.24 3.46 3.71 5.15 4.24 3.02 5.64 4.00 4.27 4.18 MEAN OF MIXING RATIO AT 15 GMT. 4.94 4.00 5.67 4.87 3.90 4.03 5.81 5.08 3.82 6.50 4.93 4.83 4.87 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.2 -5.4 -2.0 4.4 8.6 15.0 18.2 19.2 15.4 10.0 5.0 -1.2 -5.4 DAY 28 10 8 13 24 4 8 31 21 23 26 16 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.6 15.6 20.6 28.8 30.4 37.6 39.6 39.6 36.4 28.6 23.8 13.8 39.6 DAY 6 24 29 25 9 25 31 1 1 13 2 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 33.0 86.0 26.0 12.0 0.2 0.0 0.0 0.0 0.0 10.6 25.0 38.0 86.0 DAY 14 26 6 17 2 ** ** ** ** 21 14 12 MONTHLY TOTAL PRECIPITATION IN MM. 94.8 148.5 128.2 33.9 0.2 0.0 0.0 0.0 0.0 26.1 47.2 186.7 665.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 55.8 5.1 0.0 39.1 NO. OF DAYS WITH PRECIPITATION. 10 8 15 5 1 0 0 0 0 7 4 14 64 NO. OF DAYS PRECIPITATION EQUAL 10 7 13 4 0 0 0 0 0 6 4 14 58 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 3 5 2 0 0 0 0 0 1 1 7 22 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 68 66 45 32 23 27 24 21 52 51 70 46 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 48 49 27 17 11 13 11 10 32 31 55 30 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 59 63 33 20 13 16 15 15 43 47 74 40 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 3 0 0 0 0 0 0 0 0 0 0 4 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 14 27 21 7 0 0 0 69 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 1 23 31 31 21 0 0 0 107 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. 6 13 3 0 0 0 0 0 0 0 0 10 32 DATE OF START AND END FREEZING START = 15 DEC. END = 11 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 0.6 1.3 4.7 12.7 18.1 24.5 28.7 28.2 24.5 18.8 11.1 4.5 14.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.7 -1.9 0.8 8.0 13.2 19.0 22.5 22.7 18.8 12.9 6.8 1.1 10.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.9 4.6 8.6 17.3 23.1 30.0 34.9 33.6 30.3 24.7 15.4 7.9 19.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.6 6.5 7.8 9.3 9.9 11.0 12.4 10.9 11.5 11.8 8.6 6.8 9.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.87 3.40 3.44 5.11 5.62 5.39 4.56 5.30 3.50 2.86 4.23 4.06 4.20 MEAN OF MIXING RATIO AT 09 GMT. 3.08 3.63 3.56 5.11 5.20 4.43 3.83 4.60 2.49 2.40 4.16 4.14 3.88 MEAN OF MIXING RATIO AT 15 GMT. 3.42 3.66 4.46 5.59 5.63 4.55 4.12 4.44 3.17 3.13 5.18 4.55 4.32 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.6 -10.0 -5.6 2.8 8.2 15.4 18.4 20.6 11.6 8.2 -4.0 -9.6 -12.6 DAY 4 29 1 1 6 18 13 11 26 28 26 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.0 10.0 17.0 22.4 31.8 34.6 37.2 37.4 34.2 29.0 22.6 14.0 37.4 DAY 10 16 29 12 29 30 16 16 2 4 4 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.0 37.0 72.0 7.0 22.0 0.0 0.0 0.0 0.0 0.0 84.0 23.2 84.0 DAY 2 23 15 24 6 ** ** ** ** ** 8 2 MONTHLY TOTAL PRECIPITATION IN MM. 85.1 160.2 209.6 20.5 56.9 0.0 0.0 0.0 0.0 0.0 115.7 105.3 753.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 60.4 10.3 0.0 29.3 NO. OF DAYS WITH PRECIPITATION. 14 17 18 7 7 0 0 0 0 0 9 15 87 NO. OF DAYS PRECIPITATION EQUAL 10 15 16 6 4 0 0 0 0 0 7 11 69 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 7 6 0 4 0 0 0 0 0 1 5 26 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 79 66 61 47 32 22 26 22 25 55 76 48 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 58 67 51 40 31 17 10 14 9 12 38 58 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 72 67 47 35 18 12 14 13 19 55 74 42 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 10 9 4 0 0 0 0 0 0 0 1 3 27 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 3 25 30 9 0 0 0 68 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 6 2 0 0 0 0 0 0 0 0 0 0 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 16 30 31 18 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. 22 19 14 0 0 0 0 0 0 0 4 13 72 DATE OF START AND END FREEZING START = 26 NOV. END = 26 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 3.4 5.1 8.2 13.5 18.3 25.1 29.8 28.6 25.9 19.3 10.7 9.1 16.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.4 1.0 3.7 9.1 13.5 19.1 24.1 22.6 19.8 14.1 6.5 4.9 11.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.2 9.1 12.7 18.0 23.1 31.0 35.6 34.6 31.9 24.4 15.0 13.4 21.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.6 8.1 9.0 8.9 9.6 11.9 11.5 12.0 12.1 10.3 8.5 8.5 9.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.40 3.32 3.79 5.44 6.48 4.63 5.37 5.54 3.88 4.42 5.02 3.95 4.60 MEAN OF MIXING RATIO AT 09 GMT. 3.64 3.31 3.47 5.49 6.06 3.63 4.40 5.82 3.52 4.68 4.79 4.23 4.42 MEAN OF MIXING RATIO AT 15 GMT. 4.16 3.93 4.22 5.91 6.69 3.87 4.68 6.08 3.94 4.89 5.52 5.45 4.94 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.4 -5.4 -1.6 4.8 7.4 14.2 19.2 19.6 14.4 9.6 -6.2 1.2 -7.4 DAY 17 16 22 13 3 5 7 13 29 29 14 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.8 17.8 21.6 26.0 28.4 35.6 38.6 36.6 35.6 29.4 21.4 17.6 38.6 DAY 27 27 31 19 26 30 16 30 1 1 8 22 24 HOUR MAXIMUM PRECIPITATION IN MM. 59.0 26.6 38.0 25.2 35.0 1.0 0.0 0.0 0.0 25.0 25.0 40.0 59.0 DAY 7 21 5 28 13 1 ** ** ** 30 3 15 MONTHLY TOTAL PRECIPITATION IN MM. 122.7 59.6 75.5 154.4 75.2 1.0 0.0 0.0 0.0 45.4 62.4 95.0 691.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 37.3 33.4 0.0 29.3 NO. OF DAYS WITH PRECIPITATION. 10 11 8 15 11 1 0 0 0 4 11 7 78 NO. OF DAYS PRECIPITATION EQUAL 9 9 7 13 7 1 0 0 0 4 10 7 67 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 1 2 6 2 0 0 0 0 2 2 2 20 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 63 59 63 54 27 23 26 22 37 63 58 47 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 45 38 43 34 13 11 16 11 26 42 41 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 60 49 49 40 14 13 18 14 31 59 64 40 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 2 0 0 0 0 0 0 0 0 1 0 5 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 10 27 28 11 0 0 0 77 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 19 31 31 25 0 0 0 106 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. 20 13 4 0 0 0 0 0 0 0 4 0 41 DATE OF START AND END FREEZING START = 14 NOV. END = 23 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 7.1 5.6 9.8 17.3 20.9 25.9 28.6 28.1 25.4 19.0 10.9 3.9 16.9 AVERAGE OF MINIMUM TEMPERATURE IN C. 3.3 1.5 5.4 12.3 15.5 20.1 22.3 21.6 20.0 14.6 7.1 0.1 12.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.9 9.7 14.2 22.2 26.4 31.7 34.8 34.5 30.8 23.4 14.6 7.7 21.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.6 8.2 8.8 9.9 10.9 11.6 12.5 12.9 10.8 8.8 7.5 7.6 9.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.21 3.74 4.38 5.69 4.63 6.31 6.46 4.49 5.32 6.19 6.22 3.38 5.09 MEAN OF MIXING RATIO AT 09 GMT. 4.09 3.52 4.02 5.06 4.03 6.06 5.75 3.71 5.23 6.51 6.45 3.50 4.83 MEAN OF MIXING RATIO AT 15 GMT. 5.06 3.98 4.61 5.49 4.13 5.08 6.16 4.01 5.08 7.42 7.23 4.06 5.19 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -0.8 -4.0 0.6 6.0 9.0 13.8 20.0 19.0 16.0 9.0 2.6 -9.4 -9.4 DAY 27 18 15 3 7 29 20 11 28 20 9 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 15.4 21.0 28.0 34.8 36.0 36.5 36.8 34.0 27.4 20.0 14.4 36.8 DAY 1 27 31 21 31 9 24 14 1 5 2 28 24 HOUR MAXIMUM PRECIPITATION IN MM. 81.0 53.0 26.0 18.0 4.0 0.0 0.0 0.0 1.0 31.0 103.0 20.0 103.0 DAY 16 1 12 27 6 ** ** ** 22 20 23 16 MONTHLY TOTAL PRECIPITATION IN MM. 145.2 104.2 66.7 62.1 4.9 0.0 0.0 0.0 1.0 83.7 431.3 97.5 996.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 31.7 6.7 0.1 61.5 NO. OF DAYS WITH PRECIPITATION. 13 13 14 8 2 0 0 0 1 9 16 14 90 NO. OF DAYS PRECIPITATION EQUAL 10 10 8 6 1 0 0 0 1 8 16 10 70 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 2 3 0 0 0 0 0 4 11 4 29 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 70 64 53 35 35 31 23 32 49 76 68 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 50 48 39 31 19 20 16 10 18 37 59 54 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 57 49 36 20 18 18 12 20 46 75 69 41 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 0 0 4 5 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 14 27 20 12 0 0 0 75 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 2 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 10 24 31 31 21 0 0 0 117 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. 3 6 0 0 0 0 0 0 0 0 0 14 23 DATE OF START AND END FREEZING START = 4 DEC. END = 18 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 7.2 6.7 10.1 13.7 21.1 25.7 28.8 29.7 24.4 18.6 12.1 5.7 17.0 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.9 2.6 5.6 9.0 16.1 20.0 22.8 23.1 18.3 13.0 6.9 1.4 11.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.6 10.8 14.5 18.4 26.2 31.3 34.8 36.4 30.5 24.2 17.3 9.9 22.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.7 8.2 8.9 9.4 10.1 11.3 12.0 13.3 12.2 11.2 10.4 8.5 10.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.94 4.25 4.67 5.81 7.51 7.55 8.18 6.68 5.42 3.48 3.69 3.64 5.40 MEAN OF MIXING RATIO AT 09 GMT. 4.24 4.35 4.65 5.81 7.11 6.72 7.55 6.22 5.13 3.28 3.48 3.99 5.21 MEAN OF MIXING RATIO AT 15 GMT. 4.84 5.34 5.61 6.39 7.44 7.10 7.81 7.37 5.63 3.89 4.03 4.45 5.82 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.0 -1.4 -0.6 2.6 8.0 15.4 19.0 20.2 12.0 10.0 -4.0 -1.6 -4.0 DAY 23 10 27 6 9 4 6 24 21 6 26 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.6 14.4 19.4 24.0 31.4 35.6 39.2 39.0 37.0 30.2 23.6 13.4 39.2 DAY 14 1 31 30 18 20 21 1 1 2 1 25 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 48.0 17.0 45.0 7.0 0.2 0.0 0.0 0.0 0.0 4.0 9.0 48.0 DAY 17 5 12 4 2 6 ** ** ** ** 3 12 MONTHLY TOTAL PRECIPITATION IN MM. 18.0 95.4 64.8 97.7 31.2 0.2 0.0 0.0 0.0 0.0 7.2 35.9 350.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.9 36.8 0.0 12.3 NO. OF DAYS WITH PRECIPITATION. 3 9 10 11 11 1 0 0 0 0 6 8 59 NO. OF DAYS PRECIPITATION EQUAL 3 6 8 10 8 0 0 0 0 0 2 7 44 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 4 4 3 0 0 0 0 0 0 0 0 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 73 67 64 53 40 38 30 34 31 45 71 51 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 47 53 44 43 33 23 20 15 18 17 26 50 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 62 70 57 49 36 25 22 20 22 23 38 68 41 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 1 0 1 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 4 10 24 27 5 1 0 0 71 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 9 24 30 31 16 1 0 0 111 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. 8 3 1 0 0 0 0 0 0 0 4 8 24 DATE OF START AND END FREEZING START = 25 NOV. END = 27 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 5.1 7.6 7.9 14.0 22.2 26.1 30.8 30.0 25.5 18.7 12.9 9.3 17.5 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.7 3.8 4.2 9.3 16.7 20.2 25.6 24.2 19.8 13.4 8.7 5.5 12.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.5 11.4 11.7 18.7 27.7 32.1 36.1 35.8 31.1 24.0 17.2 13.2 22.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.8 7.6 7.5 9.4 11.0 11.9 10.5 11.6 11.3 10.6 8.5 7.7 9.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.04 4.30 4.67 5.49 6.24 5.16 6.00 5.51 5.23 4.71 4.47 4.62 5.04 MEAN OF MIXING RATIO AT 09 GMT. 4.38 4.52 4.83 5.56 6.29 4.70 5.41 5.91 4.65 4.47 4.57 4.61 4.99 MEAN OF MIXING RATIO AT 15 GMT. 4.85 5.23 5.41 6.10 6.08 4.88 5.24 6.28 5.88 4.99 5.25 5.30 5.46 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -2.8 0.6 4.8 12.6 13.2 21.6 18.0 14.0 5.6 5.4 1.4 -5.0 DAY 21 6 28 11 13 6 7 24 21 28 29 16 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.6 19.5 19.4 25.4 32.6 35.4 38.4 38.6 35.8 32.0 23.0 18.6 38.6 DAY 2 8 30 30 31 17 27 13 1 2 5 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 33.0 27.6 31.0 55.0 3.8 0.0 4.0 0.0 0.2 0.0 11.2 41.0 55.0 DAY 5 1 1 13 7 ** 17 ** 21 ** 21 10 MONTHLY TOTAL PRECIPITATION IN MM. 149.7 113.7 188.7 126.9 11.5 0.0 4.0 0.0 0.2 0.0 21.9 96.8 713.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 63.4 19.4 0.6 16.6 NO. OF DAYS WITH PRECIPITATION. 17 14 19 11 7 0 1 0 1 0 4 9 83 NO. OF DAYS PRECIPITATION EQUAL 14 12 18 9 5 0 1 0 0 0 3 8 70 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 5 6 3 0 0 0 0 0 0 1 3 23 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 69 72 61 43 28 24 24 30 41 52 67 49 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 53 55 41 28 15 14 15 16 24 36 47 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 66 66 48 27 16 14 17 22 30 49 63 41 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 13 31 29 9 2 0 0 85 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 5 24 31 31 21 3 0 0 115 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. 10 2 0 0 0 0 0 0 0 0 0 0 12 DATE OF START AND END FREEZING START = 15 JAN. END = 6 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 5.9 3.4 6.0 13.2 20.9 26.3 28.7 28.5 24.5 19.3 11.2 6.6 16.2 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.0 -1.3 1.7 8.5 15.8 20.7 22.5 22.0 18.6 14.4 7.1 2.7 11.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.8 8.2 10.3 17.8 26.1 31.9 34.9 35.1 30.3 24.2 15.3 10.5 21.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.8 9.5 8.6 9.3 10.3 11.2 12.4 13.1 11.7 9.8 8.2 7.8 10.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.58 2.80 4.06 4.97 5.39 5.15 5.26 5.18 5.36 5.90 5.81 4.50 4.83 MEAN OF MIXING RATIO AT 09 GMT. 3.51 2.61 3.85 4.93 4.84 4.72 4.76 4.97 5.81 6.26 6.21 4.67 4.76 MEAN OF MIXING RATIO AT 15 GMT. 4.48 3.31 4.44 5.54 4.79 4.43 4.88 5.25 5.65 6.91 6.73 5.37 5.15 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.4 -10.0 -7.6 -3.0 7.4 13.8 18.6 19.0 13.4 9.4 3.4 -2.0 -10.0 DAY 29 6 8 11 5 3 7 20 30 24 28 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.6 16.2 16.2 27.4 32.5 36.4 37.6 37.6 33.6 29.4 19.8 16.4 37.6 DAY 12 21 3 27 27 28 27 25 1 16 2 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 52.0 6.0 33.0 48.0 8.1 0.0 0.0 0.0 0.0 5.0 32.0 24.0 52.0 DAY 15 24 28 5 19 ** ** ** ** 19 30 14 MONTHLY TOTAL PRECIPITATION IN MM. 134.3 18.1 162.8 149.1 12.2 0.0 0.0 0.0 0.0 11.9 86.0 93.1 667.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.2 24.2 0.0 28.6 NO. OF DAYS WITH PRECIPITATION. 7 7 14 11 6 0 0 0 0 10 13 9 77 NO. OF DAYS PRECIPITATION EQUAL 6 6 12 9 3 0 0 0 0 3 9 7 55 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 0 7 5 0 0 0 0 0 0 3 4 23 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 65 62 73 58 40 28 26 27 33 49 71 77 51 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 46 39 51 37 23 15 13 13 20 32 53 56 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 65 54 60 43 23 15 14 16 22 42 68 75 41 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 7 1 0 0 0 0 0 0 0 0 0 10 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 16 26 22 2 0 0 0 68 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 24 31 31 22 0 0 0 112 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. 5 19 6 2 0 0 0 0 0 0 0 2 34 DATE OF START AND END FREEZING START = 26 DEC. END = 12 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 2.7 5.4 8.1 15.6 21.0 28.3 29.8 31.4 25.7 20.1 15.4 12.2 18.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.1 1.2 3.4 10.5 15.4 22.3 23.8 25.6 19.7 14.1 10.0 7.6 12.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.6 9.5 12.8 20.8 26.6 34.3 35.9 37.1 31.7 26.1 20.8 16.8 23.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.7 8.3 9.4 10.3 11.2 12.0 12.1 11.5 12.0 12.0 10.8 9.2 10.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.53 3.63 4.56 5.22 5.77 5.64 5.92 5.41 5.18 3.67 3.89 3.41 4.65 MEAN OF MIXING RATIO AT 09 GMT. 3.96 3.80 4.67 4.77 4.96 5.43 5.43 4.95 4.74 3.58 3.62 3.37 4.44 MEAN OF MIXING RATIO AT 15 GMT. 4.17 4.52 5.28 5.75 5.35 5.39 5.45 5.02 5.15 4.42 4.85 3.94 4.94 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.4 -7.4 -0.8 5.0 9.6 16.0 18.8 20.2 15.6 7.6 7.4 3.0 -9.4 DAY 14 16 21 5 1 1 9 23 27 31 2 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.4 16.2 19.0 27.8 33.0 37.4 38.6 39.6 37.4 30.2 24.0 24.0 39.6 DAY 17 6 16 16 9 30 15 19 1 6 15 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 49.3 28.0 59.0 17.0 9.2 1.0 0.0 0.0 0.0 1.2 24.0 1.5 59.0 DAY 12 15 29 20 12 16 ** ** ** 10 11 31 MONTHLY TOTAL PRECIPITATION IN MM. 178.4 65.5 214.9 43.3 20.2 2.0 0.0 0.0 0.0 1.2 37.0 1.5 564.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 81.3 11.6 0.0 7.0 NO. OF DAYS WITH PRECIPITATION. 19 12 13 9 4 2 0 0 0 1 2 1 63 NO. OF DAYS PRECIPITATION EQUAL 16 8 11 6 4 2 0 0 0 1 2 1 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 6 2 5 2 0 0 0 0 0 0 2 0 17 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 68 69 54 43 27 26 22 30 30 41 43 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 51 51 30 23 16 14 12 15 16 22 28 29 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 66 62 39 26 16 15 13 18 24 38 40 36 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 3 0 0 0 0 0 0 0 0 0 0 7 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 22 28 30 10 0 0 0 91 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 7 29 31 31 22 2 0 0 122 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. 20 10 2 0 0 0 0 0 0 0 0 0 32 DATE OF START AND END FREEZING START = 3 JAN. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 6.5 7.8 10.1 15.6 23.0 27.1 29.6 31.4 25.0 20.9 11.7 9.7 18.2 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.4 3.0 5.6 10.2 17.0 20.8 23.9 25.7 18.6 15.7 7.0 4.7 12.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.6 12.6 14.6 21.0 29.1 33.3 35.4 37.1 31.3 26.1 16.5 14.6 23.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.2 9.6 9.0 10.8 12.1 12.5 11.5 11.4 12.7 10.4 9.5 9.9 10.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.98 3.84 4.20 4.58 4.37 4.78 5.99 5.56 4.32 4.71 4.24 3.49 4.50 MEAN OF MIXING RATIO AT 09 GMT. 4.17 3.96 3.86 4.08 3.69 3.85 5.42 5.57 4.09 4.31 3.96 3.50 4.21 MEAN OF MIXING RATIO AT 15 GMT. 4.90 4.97 4.27 4.25 4.27 4.23 5.70 6.01 4.95 5.13 4.73 4.21 4.80 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -1.4 -2.0 0.4 3.8 10.6 17.0 19.4 22.4 14.5 11.0 -1.6 -0.2 -2.0 DAY 23 21 17 10 2 14 16 1 25 23 29 3 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.6 17.4 23.0 26.8 36.6 37.4 39.0 39.4 36.2 32.2 21.6 23.0 39.4 DAY 31 1 31 27 31 20 20 27 3 2 7 31 24 HOUR MAXIMUM PRECIPITATION IN MM. 78.0 32.0 6.3 8.0 0.4 0.0 2.0 0.6 0.0 1.1 51.0 11.0 78.0 DAY 9 20 1 1 7 ** 14 4 ** 27 8 2 MONTHLY TOTAL PRECIPITATION IN MM. 172.0 84.0 23.4 19.7 0.8 0.0 2.8 0.6 0.0 1.4 55.0 33.0 392.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 71.1 5.2 0.9 22.8 NO. OF DAYS WITH PRECIPITATION. 12 7 8 7 2 0 2 1 0 3 3 7 52 NO. OF DAYS PRECIPITATION EQUAL 12 7 6 6 0 0 1 0 0 1 3 6 42 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 2 0 0 0 0 0 0 0 0 1 1 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 66 60 48 30 25 27 22 26 37 55 53 43 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 44 36 27 14 12 15 13 13 20 32 35 26 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 60 44 29 18 13 16 16 19 28 46 50 34 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 5 15 28 31 6 0 0 0 85 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 12 28 31 31 20 4 0 0 126 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. 4 2 0 0 0 0 0 0 0 0 1 1 8 DATE OF START AND END FREEZING START = 29 NOV. END = 22 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 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. 4.1 5.9 9.3 17.7 21.5 26.4 31.6 30.4 24.5 17.6 10.8 7.1 17.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.2 0.9 3.7 12.6 15.4 19.6 25.8 24.0 17.9 12.1 6.0 3.0 11.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.4 10.9 15.0 22.9 27.7 33.1 37.5 36.7 31.0 23.1 15.6 11.2 22.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.6 10.0 11.3 10.3 12.3 13.5 11.7 12.7 13.1 11.0 9.6 8.2 11.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.29 3.06 3.15 4.91 4.63 4.18 4.85 4.91 4.68 5.10 4.84 4.60 4.35 MEAN OF MIXING RATIO AT 09 GMT. 3.42 2.78 2.62 4.62 3.52 3.69 4.37 3.61 4.36 4.90 4.96 4.55 3.95 MEAN OF MIXING RATIO AT 15 GMT. 4.12 3.52 2.98 4.58 4.04 4.16 4.54 3.88 4.82 5.31 5.40 5.15 4.38 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.5 -3.4 -2.8 4.8 8.4 16.0 20.6 14.8 15.4 7.2 2.4 -0.2 -5.5 DAY 30 9 9 11 10 6 5 31 1 29 28 16 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.8 15.0 20.6 27.6 31.6 39.6 40.0 38.6 35.8 28.0 19.6 17.0 40.0 DAY 1 22 21 20 25 30 16 2 9 11 12 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 50.0 30.6 38.0 14.0 2.1 0.0 0.0 0.0 1.0 14.0 30.8 19.0 50.0 DAY 5 13 24 9 8 ** ** ** 29 17 30 24 MONTHLY TOTAL PRECIPITATION IN MM. 143.7 49.2 46.0 19.6 2.6 0.0 0.0 0.0 1.1 33.6 79.2 129.0 504.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.4 4.4 0.2 48.0 NO. OF DAYS WITH PRECIPITATION. 10 5 3 7 4 0 0 0 2 8 9 15 63 NO. OF DAYS PRECIPITATION EQUAL 7 4 3 4 1 0 0 0 1 4 5 13 42 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 1 1 1 0 0 0 0 0 2 3 6 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 61 48 44 34 24 19 21 30 47 66 75 45 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 50 34 24 26 15 11 10 9 15 28 43 55 27 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 49 31 27 18 13 11 10 19 35 56 70 34 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 0 0 0 0 0 0 0 0 0 0 0 4 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 29 29 2 0 0 0 64 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 29 31 31 24 0 0 0 121 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 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. 20 13 4 0 0 0 0 0 0 0 0 3 40 DATE OF START AND END FREEZING START = 16 DEC. END = 11 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. MEAN AND EXTREMES FOR THE PERIOD 1961 TO 2000 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. 4.4 5.4 8.8 14.2 20.1 25.2 28.5 28.1 24.4 18.6 11.6 6.8 16.3 SD OF MEAN DAILY TEMPERATURE IN C. 2.00 2.09 1.62 1.70 1.60 1.63 1.83 1.95 1.28 1.37 1.75 2.03 1.74 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.3 0.6 3.7 8.6 13.8 18.1 21.2 20.8 17.3 12.3 6.3 1.9 10.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.0 10.2 14.0 19.8 26.3 32.4 35.8 35.3 31.6 24.9 17.1 11.7 22.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.3 9.7 10.4 11.3 12.5 14.4 14.6 14.6 14.5 12.7 11.0 9.7 12.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.59 3.71 4.38 5.39 6.22 6.39 6.92 6.73 5.66 5.38 4.68 3.93 5.24 MEAN OF MIXING RATIO AT 09 GMT. 4.21 4.20 4.78 5.83 6.23 6.62 7.22 7.28 6.03 5.71 5.11 4.41 5.63 MEAN OF MIXING RATIO AT 15 GMT. 4.45 4.47 5.05 5.99 6.29 6.08 6.91 6.86 5.74 6.01 5.50 4.71 5.67 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.0 -15.0 -11.0 -3.0 3.0 7.0 8.0 8.0 7.5 1.9 -6.2 -12.0 -15.0 YEAR - DAY 68-17 74- 5 76- 3 81- 2 66- 7 67- 5 72- 2 72-30 68- 6 65-28 93-14 88-29 74- 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 23.1 21.0 25.0 30.2 37.5 40.0 43.0 47.0 40.0 35.2 32.0 27.5 47.0 YEAR - DAY 71- 2 77-16 70-30 70-14 76-28 75-20 76-23 75-20 75- 5 74-17 74- 4 65- 1 75-20 24 HOUR MAXIMUM PRECIPITATION IN MM. 85.0 86.0 72.0 71.0 35.0 6.0 9.5 5.0 30.0 45.0 113.0 57.0 113.0 YEAR - DAY 74-29 91-26 92-15 69- 5 93-13 81-25 71-24 79-31 73-28 81-13 71-18 67- 4 71-18 MONTHLY TOTAL PRECIPITATION IN MM. 117.5 103.9 123.1 70.1 26.1 0.5 0.6 0.3 1.1 26.2 80.3 94.8 644.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.5 15.0 0.3 31.2 NO. OF DAYS WITH PRECIPITATION. 10 9 11 8 4 0 0 0 0 4 7 8 61 NO. OF DAYS PRECIPITATION EQUAL 9 8 10 7 4 0 0 0 0 3 6 8 55 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 4 4 2 1 0 0 0 0 1 2 4 22 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 69 65 58 48 37 34 34 35 47 59 68 52 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 53 47 40 29 21 19 19 19 29 41 50 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 64 58 48 35 24 22 22 23 39 55 65 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 3 1 0 0 0 0 0 0 0 0 2 11 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 7 18 17 4 0 0 0 47 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 25 31 31 23 3 0 0 119 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 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. 17 13 5 0 0 0 0 0 0 0 2 10 47 DATE OF START AND END FREEZING START = 6 NOV. END = 20 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION ILAM LATITUDE 33 38 N DATA PROCESSING CENTER LONGITUDE 46 26 E ELEVATION 1319 MET. MEAN AND EXTREMES FOR THE PERIOD 1961 TO 2000 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. 4.8 5.9 9.4 14.9 20.9 26.5 29.7 29.2 25.5 19.0 12.2 7.1 17.1 AVERAGE DEW POINT TEMPERATURE. IN C. -1.8 -1.7 0.2 2.8 4.0 4.0 5.4 5.1 2.7 2.7 1.1 -0.9 2.0 AVERAGE OF MIXING RATIO IN G/KG 4.07 4.12 4.74 5.71 6.26 6.41 7.06 7.01 5.86 5.71 5.08 4.36 5.53 AVERAGE OF VAPOUR PRESSURE HPA 5.62 5.68 6.54 7.89 8.66 8.89 9.80 9.72 8.13 7.91 7.02 6.01 7.66 AVERAGE OF SATURATION DEFICIT IN HPA 3.35 4.01 5.81 9.87 17.04 27.15 33.66 32.40 25.87 15.12 7.81 4.54 15.55 AVERAGE RELATIVE HUMIDITY IN PERCENT 66 62 57 49 38 27 25 25 26 38 51 61 44 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 78 75 71 62 51 38 35 36 37 50 63 73 56 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 54 49 44 37 27 19 17 18 18 28 38 48 33 NO. OF DAYS PRECIPITATION EQUAL 6 5 6 4 2 0 0 0 0 2 4 5 34 OR MORE THAN 5 MM.