IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1961 6.2 7.7 13.0 17.4 27.0 30.0 32.7 29.3 28.2 20.1 13.4 10.1 26.5 1962 7.7 11.6 16.6 19.1 25.5 29.0 31.8 29.0 24.1 20.4 11.4 8.9 24.1 1963 9.8 12.5 14.0 22.0 24.5 31.0 33.1 30.6 26.5 21.9 13.6 6.9 26.2 1964 ****** 9.4 15.9 19.2 26.5 30.9 33.6 32.7 26.4 17.9 13.5 4.2 ****** 1965 6.4 9.7 14.5 19.8 27.4 31.0 32.6 30.6 26.5 23.1 16.5 9.9 26.2 1966 11.5 12.8 14.8 19.8 25.9 31.6 31.9 30.7 27.8 19.8 11.5 8.4 23.5 1967 6.6 7.2 13.0 18.4 25.2 28.9 33.0 30.4 27.4 20.2 14.3 7.4 26.4 1968 7.2 7.7 14.6 19.3 24.5 30.9 31.1 30.5 27.0 21.2 14.4 9.1 23.9 1969 4.2 6.2 17.4 20.1 25.7 31.3 32.6 29.5 25.8 22.3 10.5 9.7 28.4 1970 6.5 11.6 14.0 22.3 27.6 31.7 32.3 33.3 26.0 20.4 16.1 8.0 26.8 1971 6.0 9.3 15.7 20.1 28.3 32.3 32.2 31.7 26.2 19.1 14.8 8.9 26.3 1972 3.1 3.0 11.5 20.5 23.1 31.3 32.2 ****** 27.5 23.2 13.5 4.2 ****** 1973 1.8 10.4 15.6 20.3 26.3 32.6 33.4 29.4 27.1 24.4 15.2 4.1 31.6 1974 ****** 2.4 10.9 19.8 22.7 30.2 32.7 29.0 26.7 15.5 14.8 5.1 ****** 1975 4.4 8.2 9.6 19.1 26.2 30.9 33.8 30.5 25.9 17.9 10.0 3.6 30.2 1976 8.1 4.1 6.8 16.6 25.0 30.2 33.5 30.8 28.2 19.9 8.9 5.6 29.4 1977 ****** ****** ****** ****** ****** 32.6 ****** 30.3 27.2 20.6 11.6 8.2 ****** 1978 5.5 8.5 13.9 21.6 25.0 30.0 31.7 30.1 26.9 21.0 10.5 9.4 26.2 1979 7.0 9.9 13.0 22.7 22.9 30.2 32.9 28.7 25.8 22.1 11.3 6.9 26.0 1980 5.8 7.8 13.1 22.1 26.6 31.0 32.1 31.3 26.2 20.2 15.0 9.1 26.4 1981 ****** 9.2 15.8 21.1 25.3 28.6 32.2 30.4 25.7 19.1 14.9 9.5 ****** 1982 6.5 7.0 12.2 21.9 27.0 31.4 31.5 30.9 26.2 19.9 9.6 4.8 26.7 1983 3.8 7.3 11.0 18.2 27.0 31.4 33.9 32.5 27.6 20.2 17.4 8.2 30.1 1984 5.9 4.6 14.7 20.4 24.3 30.3 32.4 33.1 27.1 18.4 14.7 4.1 29.0 1985 5.7 9.7 10.6 19.3 23.3 31.9 32.7 26.5 26.5 18.4 13.7 9.0 27.0 1986 ****** 9.0 10.1 19.7 26.3 29.8 31.6 29.1 25.8 22.3 12.6 6.4 ****** 1987 7.8 10.6 14.7 21.0 27.4 30.5 31.7 31.7 27.3 17.0 14.4 8.7 23.9 1988 6.5 8.8 14.8 20.5 26.8 31.3 33.4 31.3 27.5 21.3 14.8 9.9 26.9 1989 3.4 4.7 14.3 20.8 24.9 32.1 33.7 30.9 26.7 22.2 14.6 9.6 30.3 1990 5.3 8.0 13.6 20.3 27.8 32.3 32.6 32.7 28.9 20.9 15.6 8.5 27.4 1991 6.5 7.2 13.6 21.6 24.7 30.1 32.4 30.9 26.8 20.4 13.9 8.5 25.9 1992 4.1 8.0 10.0 19.2 22.2 30.5 33.3 28.8 24.9 19.3 14.8 8.5 29.2 1993 4.6 8.9 12.3 20.8 25.9 30.5 32.0 30.6 27.4 18.1 12.0 8.0 27.4 1994 7.8 8.5 15.5 21.2 26.1 31.2 33.4 32.6 23.7 19.8 16.4 6.5 26.9 1995 8.3 9.7 14.0 19.8 25.6 30.2 34.9 32.7 27.1 19.5 14.9 6.0 28.9 1996 4.8 9.6 12.3 20.2 26.3 30.8 31.7 31.3 29.3 20.1 11.9 9.4 26.9 1997 8.4 7.9 12.2 20.2 25.6 32.1 35.3 32.2 27.5 23.2 13.4 9.0 27.4 1998 6.2 8.4 14.6 21.9 25.9 30.7 33.8 32.5 27.9 21.6 16.7 11.3 27.6 1999 6.8 12.7 13.6 20.9 26.9 32.3 31.9 31.8 27.9 22.5 13.4 8.9 25.5 2000 7.0 9.2 14.1 24.2 29.0 30.3 31.7 31.0 29.1 20.6 12.2 9.1 24.7 MEAN 6.2 8.4 13.4 20.3 25.7 30.9 32.7 30.8 26.9 20.4 13.6 7.8 26.5 SD 1.91 2.41 2.16 1.47 1.55 0.98 0.94 1.45 1.18 1.83 2.06 2.00 1.66 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 -0.2 0.4 5.3 10.9 19.2 21.7 24.9 21.7 19.9 11.1 4.0 1.0 11.6 1962 0.5 3.5 8.4 12.1 17.7 21.1 24.2 21.7 14.9 11.3 3.2 1.1 11.6 1963 0.6 4.6 6.0 14.8 17.4 22.8 25.2 22.3 16.3 12.6 5.0 -2.0 12.1 1964 ****** 1.4 7.3 10.8 17.3 22.1 24.9 23.5 17.7 8.3 4.4 -3.0 ****** 1965 0.2 1.5 6.9 11.8 18.9 22.7 24.8 21.5 17.5 14.2 7.1 0.3 12.3 1966 1.8 4.8 7.3 12.4 18.6 23.4 24.5 22.6 19.8 12.7 2.4 0.7 12.6 1967 -0.9 0.8 5.5 11.8 17.9 20.8 25.3 22.2 18.7 12.0 7.0 -0.4 11.7 1968 -0.1 1.2 7.6 11.9 17.0 24.3 23.2 22.2 17.1 12.9 8.0 3.0 12.4 1969 -0.6 0.4 10.3 13.0 17.3 23.0 24.8 22.3 17.0 13.6 2.8 2.8 12.2 1970 0.6 4.4 6.7 14.1 19.3 23.0 24.5 25.3 17.5 11.4 7.0 -0.1 12.8 1971 -1.6 1.6 8.1 12.4 20.0 24.2 24.6 23.5 18.0 10.0 7.9 2.1 12.6 1972 -1.9 -2.7 5.5 13.0 16.2 23.6 24.9 ****** 17.7 14.0 5.0 -1.3 ****** 1973 -5.1 2.8 8.2 12.4 17.6 23.9 25.2 21.1 18.7 15.3 8.6 -1.2 12.3 1974 ****** -4.1 5.2 12.3 15.4 21.7 25.1 21.1 17.3 7.3 5.3 -2.1 ****** 1975 -1.7 0.8 3.7 11.3 17.8 22.4 25.6 22.3 17.6 9.5 3.7 -1.8 10.9 1976 1.6 -1.3 1.2 9.6 16.2 21.1 25.2 23.2 20.5 12.2 2.1 0.6 11.0 1977 -2.6 -0.5 6.8 13.5 18.1 24.9 25.8 21.8 18.5 13.7 3.6 1.6 12.1 1978 -1.8 1.9 6.5 13.0 16.4 22.2 24.6 21.8 18.1 12.5 4.6 3.5 11.9 1979 1.2 3.4 7.0 14.7 16.0 22.8 25.2 21.2 16.8 13.6 3.1 1.5 12.2 1980 0.1 1.5 6.2 14.0 18.6 22.8 24.0 23.2 17.4 12.6 7.8 2.4 12.6 1981 0.3 2.0 8.1 13.5 16.0 20.2 25.0 22.7 17.6 11.8 7.2 2.6 12.3 1982 -0.3 0.0 4.4 13.4 18.9 22.5 22.2 22.9 17.5 12.3 2.3 -1.5 11.2 1983 -1.8 0.0 4.2 11.8 19.8 23.0 25.3 24.9 19.8 12.2 10.6 2.3 12.7 1984 -0.6 -1.8 8.2 12.3 17.2 22.5 25.2 25.0 19.0 9.8 7.4 -2.0 11.9 1985 -1.9 1.6 3.5 10.1 14.0 23.5 23.8 16.9 17.7 10.1 6.5 2.4 10.7 1986 ****** 3.8 5.3 13.9 19.4 22.4 24.4 22.1 17.8 14.7 7.0 0.8 ****** 1987 0.6 4.0 8.9 14.5 20.5 23.1 24.8 24.4 20.1 10.9 7.2 2.0 13.4 1988 0.5 3.2 8.6 14.3 19.4 24.1 26.5 24.3 20.0 13.8 7.4 2.9 13.7 1989 -2.1 -1.2 8.2 13.9 17.3 24.1 27.0 23.3 18.5 14.1 7.6 2.9 12.8 1990 0.4 2.2 7.0 13.4 20.0 24.5 25.7 25.0 20.7 13.3 7.5 2.4 13.5 1991 2.0 1.8 8.5 14.8 17.9 22.6 25.1 23.3 19.0 13.3 7.1 3.3 13.2 1992 -0.7 1.5 3.9 12.5 16.2 23.3 26.1 21.8 17.1 11.4 7.6 4.0 12.1 1993 0.2 3.7 6.5 14.3 19.8 22.9 25.5 23.7 19.4 11.1 5.9 1.5 12.9 1994 1.6 2.0 9.0 14.5 19.4 23.8 26.1 25.2 16.6 13.4 10.1 0.2 13.5 1995 1.3 3.7 7.5 13.4 19.1 22.9 27.4 24.8 19.4 12.1 6.9 0.8 13.3 1996 -0.2 4.2 7.3 14.0 19.9 23.8 25.5 24.2 21.2 12.7 5.4 2.5 13.4 1997 1.8 0.9 5.9 13.5 18.9 25.5 28.4 24.6 19.7 16.2 7.4 3.7 13.9 1998 1.2 2.8 8.9 14.7 19.2 24.0 27.2 25.7 20.2 14.3 8.8 4.6 14.3 1999 2.2 6.2 8.5 14.2 19.5 24.8 25.0 24.8 20.1 14.7 7.5 2.8 14.2 2000 1.3 2.8 7.0 16.8 21.1 22.5 25.0 23.4 21.7 13.6 6.5 3.8 13.8 MEAN -0.1 1.8 6.7 13.1 18.2 23.0 25.2 23.0 18.5 12.4 6.2 1.3 12.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 12.6 15.0 20.7 23.9 34.8 37.9 40.4 36.9 36.5 29.1 22.9 19.2 27.5 1962 14.9 19.8 24.9 26.2 33.4 36.9 39.4 36.4 33.4 29.6 19.7 16.7 27.6 1963 19.0 20.4 22.1 29.2 31.5 39.2 41.1 39.0 36.7 31.2 22.2 15.7 28.9 1964 ****** 17.4 24.6 27.5 35.6 39.7 42.3 42.0 35.1 27.6 22.6 11.4 ****** 1965 12.5 17.9 22.0 27.7 35.8 39.2 40.4 39.8 35.5 32.1 25.9 19.5 29.0 1966 21.1 20.8 22.2 27.2 33.3 39.7 39.2 38.8 35.9 26.8 20.5 16.0 28.5 1967 14.2 13.6 20.6 25.0 32.6 37.0 40.7 38.6 36.1 28.5 21.7 15.3 27.0 1968 14.5 14.3 21.6 26.6 31.9 37.4 38.9 38.9 36.9 29.5 20.8 15.1 27.2 1969 9.1 12.0 24.4 27.3 34.1 39.6 40.5 36.7 34.6 31.0 18.1 16.7 27.0 1970 12.4 18.7 21.3 30.5 35.9 40.3 40.2 41.3 34.5 29.4 25.1 16.0 28.8 1971 13.5 17.1 23.4 27.7 36.5 40.4 39.8 39.9 34.4 28.3 21.8 15.8 28.2 1972 8.0 8.8 17.4 27.9 29.9 39.0 39.5 ****** 37.3 32.4 22.0 9.8 ****** 1973 8.7 17.9 23.0 28.1 35.0 41.2 41.5 37.7 35.5 33.4 21.9 9.5 27.8 1974 ****** 8.9 16.7 27.3 30.0 38.6 40.3 36.9 36.1 23.7 24.4 12.3 ****** 1975 10.5 15.6 15.5 26.9 34.7 39.4 41.9 38.7 34.1 26.4 16.4 9.1 25.7 1976 14.6 9.6 12.4 23.6 33.7 39.3 41.9 38.5 35.8 27.6 15.8 10.5 25.3 1977 ****** ****** ****** ****** ****** 40.2 ****** 38.8 35.8 27.4 19.6 14.7 ****** 1978 12.8 15.0 21.2 30.2 33.6 37.9 38.8 38.5 35.7 29.5 16.4 15.2 27.1 1979 12.9 16.4 19.0 30.6 29.9 37.7 40.6 36.3 34.8 30.5 19.5 12.3 26.7 1980 11.5 14.0 20.0 30.1 34.7 39.4 40.2 39.5 35.0 27.7 22.2 15.8 27.5 1981 ****** 16.3 23.4 28.2 34.6 37.0 39.4 38.0 33.8 26.5 22.7 16.5 ****** 1982 13.3 13.9 20.0 30.3 35.1 40.3 40.7 38.9 34.9 27.5 16.8 11.0 26.9 1983 9.0 14.7 17.7 24.5 34.2 39.8 42.5 40.1 35.3 28.1 24.2 14.0 27.0 1984 12.5 11.5 21.3 28.5 31.2 38.2 39.6 41.2 35.3 27.0 21.9 10.1 26.5 1985 13.3 17.8 17.7 28.5 32.6 40.4 41.6 36.2 35.4 26.7 20.9 15.5 27.2 1986 ****** 14.1 14.9 25.5 33.2 37.3 38.8 36.2 33.8 29.9 18.2 12.0 ****** 1987 15.1 17.1 20.5 27.4 34.2 37.9 38.5 38.9 34.6 23.1 21.5 15.4 27.0 1988 12.5 14.4 21.0 26.8 34.2 38.6 40.4 38.3 35.0 28.8 22.3 16.9 27.4 1989 9.0 10.6 20.4 27.8 32.4 40.0 40.5 38.5 34.9 30.2 21.6 16.5 26.9 1990 10.1 13.8 20.2 27.2 35.6 40.2 39.6 40.4 37.1 28.5 23.6 14.7 27.6 1991 11.1 12.6 18.7 28.4 31.5 37.5 39.7 38.5 34.5 27.5 20.7 13.7 26.2 1992 8.9 14.4 16.1 25.8 28.2 37.8 40.4 35.9 32.7 27.3 22.1 13.0 25.2 1993 9.0 14.0 18.1 27.4 31.9 38.1 38.5 37.5 35.5 25.2 18.1 14.4 25.6 1994 13.9 15.0 22.0 28.0 32.8 38.6 40.6 40.0 30.8 26.2 22.6 12.7 26.9 1995 15.2 15.7 20.5 26.2 32.0 37.4 42.3 40.6 34.8 26.9 23.0 11.2 27.2 1996 9.8 15.0 17.4 26.4 32.8 37.7 37.9 38.5 37.5 27.5 18.4 16.4 26.3 1997 15.0 14.9 18.5 26.9 32.3 38.7 42.3 39.8 35.4 30.2 19.4 14.4 27.3 1998 11.1 14.1 20.4 29.2 32.6 37.4 40.4 39.3 35.6 28.9 24.6 18.0 27.6 1999 11.3 19.1 18.8 27.5 34.3 39.7 38.8 38.8 35.6 30.3 19.2 15.1 27.4 2000 12.7 15.6 21.3 31.6 37.0 38.1 38.5 38.5 36.5 27.5 17.8 14.4 27.5 MEAN 12.4 15.1 20.0 27.6 33.3 38.8 40.2 38.6 35.2 28.4 21.0 14.3 27.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 12.8 14.6 15.4 13.0 15.6 16.2 15.5 15.2 16.6 18.0 18.9 18.2 15.8 1962 14.4 16.3 16.5 14.1 15.7 15.8 15.2 14.7 18.5 18.3 16.5 15.6 16.0 1963 18.4 15.8 16.1 14.4 14.1 16.4 15.9 16.7 20.4 18.6 17.2 17.7 16.8 1964 ****** 16.0 17.3 16.7 18.3 17.6 17.4 18.5 17.4 19.3 18.2 14.4 ****** 1965 12.3 16.4 15.1 15.9 16.9 16.5 15.6 18.3 18.0 17.9 18.8 19.2 16.7 1966 19.3 16.0 14.9 14.8 14.7 16.3 14.7 16.2 16.1 14.1 18.1 15.3 15.9 1967 15.1 12.8 15.1 13.2 14.7 16.2 15.4 16.4 17.4 16.5 14.7 15.7 15.3 1968 14.6 13.1 14.0 14.7 14.9 13.1 15.7 16.7 19.8 16.6 12.8 12.1 14.8 1969 9.7 11.6 14.1 14.3 16.8 16.6 15.7 14.4 17.6 17.4 15.3 13.9 14.8 1970 11.8 14.3 14.6 16.4 16.6 17.3 15.7 16.0 17.0 18.0 18.1 16.1 16.0 1971 15.1 15.5 15.3 15.3 16.5 16.2 15.2 16.4 16.4 18.3 13.9 13.7 15.6 1972 9.9 11.5 11.9 14.9 13.7 15.4 14.6 ****** 19.6 18.4 17.0 11.1 ****** 1973 13.8 15.1 14.8 15.7 17.4 17.3 16.3 16.6 16.8 18.1 13.3 10.7 15.5 1974 ****** 13.0 11.5 15.0 14.6 16.9 15.2 15.8 18.8 16.4 19.1 14.4 ****** 1975 12.2 14.8 11.8 15.6 16.9 17.0 16.3 16.4 16.5 16.9 12.7 10.9 14.8 1976 13.0 10.9 11.2 14.0 17.5 18.2 16.7 15.3 15.3 15.4 13.7 9.9 14.3 1977 ****** ****** ****** ****** ****** 15.3 ****** 17.0 17.3 13.7 16.0 13.1 ****** 1978 14.6 13.1 14.7 17.2 17.2 15.7 14.2 16.7 17.6 17.0 11.8 11.7 15.1 1979 11.7 13.0 12.0 15.9 13.9 14.9 15.4 15.1 18.0 16.9 16.4 10.8 14.5 1980 11.4 12.5 13.8 16.1 16.1 16.6 16.2 16.3 17.6 15.1 14.4 13.4 15.0 1981 ****** 14.3 15.3 14.7 18.6 16.8 14.4 15.3 16.2 14.7 15.5 13.9 ****** 1982 13.6 13.9 15.6 16.9 16.2 17.8 18.5 16.0 17.4 15.2 14.5 12.5 15.7 1983 10.8 14.7 13.5 12.7 14.4 16.8 17.2 15.2 15.5 15.9 13.6 11.7 14.3 1984 13.1 13.3 13.1 16.2 14.0 15.7 14.4 16.2 16.3 17.2 14.5 12.1 14.7 1985 15.2 16.2 14.2 18.4 18.6 16.9 17.8 19.3 17.7 16.6 14.4 13.1 16.5 1986 ****** 10.3 9.6 11.6 13.8 14.9 14.4 14.1 16.0 15.2 11.2 11.2 ****** 1987 14.5 13.1 11.6 12.9 13.7 14.8 13.7 14.5 14.5 12.2 14.3 13.4 13.6 1988 12.0 11.2 12.4 12.5 14.8 14.5 13.9 14.0 15.0 15.0 14.9 14.0 13.7 1989 11.1 11.8 12.2 13.9 15.1 15.9 13.5 15.2 16.4 16.1 14.0 13.6 14.1 1990 9.7 11.6 13.2 13.8 15.6 15.7 13.9 15.4 16.4 15.2 16.1 12.3 14.1 1991 9.1 10.8 10.2 13.6 13.6 14.9 14.6 15.2 15.5 14.2 13.6 10.4 13.0 1992 9.6 12.9 12.2 13.3 12.0 14.5 14.3 14.1 15.6 15.9 14.5 9.0 13.2 1993 8.8 10.3 11.6 13.1 12.1 15.2 13.0 13.8 16.1 14.1 12.2 12.9 12.8 1994 12.3 13.0 13.0 13.5 13.4 14.8 14.5 14.8 14.2 12.8 12.5 12.5 13.4 1995 13.9 12.0 13.0 12.8 12.9 14.5 14.9 15.8 15.4 14.8 16.1 10.4 13.9 1996 10.0 10.8 10.1 12.4 12.9 13.9 12.4 14.3 16.3 14.8 13.0 13.9 12.9 1997 13.2 14.0 12.6 13.4 13.4 13.2 13.9 15.2 15.7 14.0 12.0 10.7 13.4 1998 9.9 11.3 11.5 14.5 13.4 13.4 13.2 13.6 15.4 14.6 15.8 13.4 13.3 1999 9.1 12.9 10.3 13.3 14.8 14.9 13.8 14.0 15.5 15.6 11.7 12.3 13.2 2000 11.4 12.8 14.3 14.8 15.9 15.6 13.5 15.1 14.8 13.9 11.3 10.6 13.7 MEAN 12.5 13.3 13.3 14.5 15.2 15.8 15.0 15.6 16.7 16.0 14.8 13.0 14.6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 3.64 3.13 3.60 6.57 7.51 8.08 8.95 9.05 7.64 5.03 3.74 3.20 5.84 1962 3.16 3.68 5.19 6.50 8.55 9.71 11.04 10.22 7.61 5.48 3.51 3.12 6.48 1963 3.09 4.24 4.73 7.61 9.00 10.01 10.22 10.13 7.34 6.80 4.58 2.79 6.71 1964 ****** 3.81 5.46 5.98 9.86 11.05 12.21 13.68 8.43 4.71 5.02 2.68 ****** 1965 3.56 3.46 4.91 5.14 7.19 9.84 11.40 10.34 10.77 9.26 6.52 3.30 7.14 1966 3.79 4.94 5.27 5.85 7.15 7.40 8.65 9.21 6.88 6.07 3.25 2.95 5.95 1967 2.08 3.09 3.29 5.47 5.60 5.22 7.28 5.98 4.66 4.57 3.75 2.17 4.43 1968 2.03 3.09 3.81 4.25 5.45 6.32 5.67 5.17 4.33 4.09 5.22 3.54 4.41 1969 2.84 3.06 4.37 3.95 4.87 5.22 7.08 7.83 6.23 5.29 3.48 3.19 4.78 1970 3.23 3.65 4.21 4.54 4.99 4.69 5.80 6.73 4.49 3.94 3.91 2.71 4.41 1971 2.20 2.80 4.24 4.99 5.01 5.17 5.37 6.29 5.82 4.13 5.30 3.36 4.56 1972 2.72 3.01 5.04 4.62 5.73 5.21 5.47 ****** 6.59 4.51 3.38 2.85 ****** 1973 2.36 3.65 4.10 4.41 4.87 5.51 7.21 6.28 5.61 5.37 5.08 2.31 4.73 1974 ****** 2.29 4.49 4.62 5.55 7.44 7.69 7.16 5.93 3.79 3.04 2.28 ****** 1975 2.84 2.49 3.35 4.35 5.95 5.05 5.22 5.96 4.52 3.36 3.66 3.02 4.15 1976 3.40 2.83 3.97 4.29 5.42 5.19 4.38 2.86 4.40 ****** 4.05 3.57 ****** 1977 2.67 2.82 2.87 5.55 6.38 6.99 6.66 6.03 5.68 5.78 4.31 3.77 4.96 1978 2.91 4.07 4.48 5.48 5.78 7.29 7.49 5.94 4.93 5.08 4.23 4.28 5.16 1979 3.79 4.13 4.99 5.16 6.87 7.75 6.80 6.23 5.68 4.87 3.66 3.71 5.30 1980 3.34 3.87 5.05 6.27 8.27 5.27 6.58 5.62 5.04 5.77 4.95 3.72 5.31 1981 3.22 3.44 3.83 5.48 5.11 4.52 4.93 4.53 4.28 4.74 4.49 3.68 4.35 1982 3.13 3.22 3.89 4.96 5.43 5.76 6.19 6.10 5.11 4.71 3.90 3.53 4.66 1983 3.15 3.02 3.59 5.42 6.03 5.27 5.73 5.88 5.68 3.93 3.97 3.27 4.58 1984 3.13 3.09 4.85 4.09 5.14 5.78 6.51 6.42 6.74 3.89 4.82 3.12 4.80 1985 2.89 3.44 4.08 4.86 3.84 5.69 6.96 8.07 6.45 4.75 5.06 4.09 5.01 1986 ****** 4.17 3.81 6.40 5.76 6.42 6.75 6.01 4.45 4.71 4.19 3.60 ****** 1987 2.81 3.47 4.46 5.41 6.31 5.17 8.47 7.45 6.28 4.83 3.31 2.86 5.07 1988 2.89 3.74 4.35 5.68 5.20 6.56 8.41 6.87 5.29 4.16 3.14 2.95 4.94 1989 2.79 2.89 4.27 3.66 5.17 5.37 7.34 5.82 4.65 3.99 4.14 3.38 4.46 1990 3.63 3.36 3.47 4.21 5.54 5.66 7.49 6.77 4.80 4.17 3.41 3.14 4.64 1991 4.31 3.10 5.31 4.59 5.87 6.03 7.12 6.92 5.59 4.98 3.92 3.84 5.13 1992 3.25 2.68 3.42 5.40 6.92 7.51 7.25 7.89 5.06 3.92 3.73 4.36 5.12 1993 3.48 4.74 4.20 5.39 6.11 6.46 7.53 7.03 5.22 3.48 3.90 3.20 5.06 1994 3.35 2.64 4.32 4.72 5.93 7.21 8.38 6.64 4.84 6.02 4.83 2.99 5.16 1995 3.05 3.56 3.99 6.35 5.31 6.88 7.46 6.69 5.03 4.44 2.89 3.61 4.94 1996 3.57 4.28 5.12 5.15 7.96 6.92 7.46 6.17 5.71 4.15 3.02 2.84 5.20 1997 2.91 2.10 3.12 4.55 5.51 8.06 7.34 6.04 4.84 4.98 4.51 4.31 4.85 1998 3.53 3.66 4.42 5.18 5.99 7.03 8.43 7.72 6.35 4.83 3.61 3.58 5.36 1999 3.87 3.61 4.93 5.59 5.82 7.25 9.28 6.79 6.55 5.15 4.57 3.68 5.59 2000 2.90 3.48 2.65 4.46 5.49 5.79 6.83 6.32 6.06 5.39 4.28 4.68 4.86 MEAN 3.13 3.40 4.24 5.18 6.12 6.60 7.43 7.00 5.79 4.85 4.11 3.34 5.09 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 4.41 3.24 3.63 6.64 7.80 8.59 7.97 8.07 8.21 6.56 5.84 6.15 6.43 1962 4.75 4.49 5.88 6.56 9.65 10.07 11.04 11.47 10.66 7.46 5.33 5.63 7.75 1963 5.46 6.29 6.39 8.54 8.81 9.89 9.20 10.74 8.67 8.93 6.15 4.83 7.83 1964 ****** 5.28 7.60 7.30 13.94 14.29 14.08 15.26 10.98 8.00 7.67 4.50 ****** 1965 5.94 5.06 5.14 6.52 9.22 9.86 9.10 13.45 10.91 11.11 10.33 6.51 8.60 1966 6.36 6.95 6.27 6.17 6.45 6.29 7.12 6.74 7.54 7.37 4.28 3.55 6.26 1967 3.77 3.89 3.23 4.63 5.53 4.08 5.82 5.90 6.26 4.43 4.63 3.42 4.63 1968 3.37 3.86 4.12 4.53 4.60 6.07 6.95 5.93 5.56 4.32 7.71 5.68 5.22 1969 4.60 4.51 4.56 4.47 4.46 4.98 5.98 6.40 6.14 5.58 5.24 4.35 5.11 1970 4.62 4.29 4.65 5.61 5.19 6.28 6.00 6.33 5.22 5.63 4.42 4.69 5.24 1971 4.09 4.24 4.89 4.53 5.39 5.88 6.28 7.51 6.23 4.97 5.60 4.66 5.35 1972 4.77 4.30 4.82 5.13 5.32 5.96 6.40 ****** 6.26 5.38 4.75 4.56 ****** 1973 3.78 4.83 4.47 4.87 5.23 9.69 10.82 7.38 5.69 5.59 6.40 3.98 6.06 1974 ****** 4.36 5.07 5.66 5.91 6.60 7.38 9.40 6.00 3.86 3.14 3.23 ****** 1975 3.64 3.19 2.97 4.62 5.74 5.04 3.12 3.02 3.22 2.76 2.60 3.06 3.58 1976 2.12 2.79 3.08 2.79 5.94 6.46 7.71 2.55 1.55 ****** 3.86 4.01 ****** 1977 3.19 2.69 2.17 5.74 8.51 22.72 7.61 8.66 4.74 3.68 4.56 3.73 6.50 1978 3.12 4.39 4.84 3.53 5.03 4.37 5.31 4.56 5.61 6.55 4.67 4.32 4.69 1979 3.83 4.27 4.67 3.53 4.88 5.60 6.27 5.59 3.72 4.46 4.38 4.42 4.63 1980 3.55 4.19 4.41 4.98 5.97 7.22 5.02 6.48 5.94 5.68 5.22 3.86 5.21 1981 3.86 3.92 3.89 4.72 7.12 7.04 7.85 4.62 5.16 4.19 3.99 3.20 4.96 1982 3.41 2.83 4.14 3.85 6.53 5.58 5.26 4.87 4.44 4.11 4.29 3.93 4.44 1983 3.72 2.47 2.88 4.24 4.77 4.57 4.65 5.08 4.94 4.29 3.58 3.58 4.06 1984 3.73 3.26 4.67 3.16 4.07 4.07 4.29 6.00 4.91 3.91 4.45 2.81 4.11 1985 3.81 2.23 2.92 3.53 2.95 4.32 6.79 5.58 4.93 4.85 4.46 4.01 4.20 1986 ****** 4.22 3.49 5.21 4.82 5.69 5.02 5.20 4.12 6.09 4.19 4.32 ****** 1987 3.01 3.42 4.24 4.49 5.82 4.03 9.19 6.40 6.79 4.92 3.22 3.18 4.89 1988 2.73 3.98 4.12 4.93 4.15 5.85 7.42 5.63 4.37 4.31 3.69 3.21 4.53 1989 2.78 3.05 3.81 3.31 5.63 4.62 6.33 5.14 4.66 5.07 4.38 3.84 4.39 1990 3.74 3.05 3.27 4.25 4.82 5.71 7.35 6.47 5.50 4.39 4.29 3.58 4.70 1991 4.31 3.13 5.06 4.03 5.06 5.25 6.97 7.06 5.70 5.55 4.54 4.24 5.07 1992 3.28 2.62 3.24 4.74 5.99 6.47 6.39 8.03 4.80 4.38 4.22 4.68 4.90 1993 3.72 4.96 3.46 4.58 5.12 5.33 5.65 6.09 5.27 3.77 4.43 3.73 4.68 1994 3.76 2.67 4.22 4.29 5.90 6.64 8.62 6.22 4.23 6.66 5.25 2.94 5.12 1995 3.45 4.02 3.69 5.74 4.39 6.13 7.42 6.29 4.32 4.70 3.54 4.15 4.82 1996 3.88 4.53 5.05 4.99 7.05 6.55 5.69 5.25 5.59 4.08 3.38 3.22 4.94 1997 3.19 2.46 2.89 4.09 4.85 7.49 6.57 5.59 4.77 5.16 4.77 4.72 4.71 1998 3.88 3.53 4.27 4.40 4.93 5.89 7.00 6.75 6.76 4.73 4.40 4.17 5.06 1999 4.09 3.38 4.60 5.47 5.99 7.52 9.51 6.35 7.51 6.08 4.52 4.07 5.76 2000 3.28 3.30 2.66 4.17 5.37 5.17 5.87 6.21 5.70 5.50 4.58 5.06 4.74 MEAN 3.87 3.86 4.24 4.87 5.98 6.85 7.08 6.78 5.85 5.36 4.78 4.15 5.30 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 4.08 3.44 4.07 6.58 7.98 8.75 8.71 8.55 8.17 5.90 5.64 5.61 6.46 1962 4.95 5.18 6.11 6.90 9.15 10.42 11.92 11.53 10.37 7.73 5.48 5.39 7.93 1963 5.35 6.24 6.44 8.43 9.13 10.28 13.14 11.65 11.33 9.04 6.03 4.32 8.45 1964 ****** 5.18 7.76 7.74 13.41 13.61 12.90 14.95 10.42 7.39 6.59 4.02 ****** 1965 5.29 4.63 5.06 5.29 7.96 9.39 9.60 12.08 11.13 10.36 7.52 4.96 7.77 1966 5.80 6.72 5.33 5.87 5.63 5.82 7.21 6.62 6.93 6.46 3.75 3.54 5.81 1967 3.81 4.08 3.21 5.26 5.17 4.23 6.54 5.29 5.86 4.87 4.87 3.38 4.71 1968 3.36 4.36 4.60 5.12 5.18 5.45 6.24 5.55 5.41 5.40 7.25 5.12 5.25 1969 4.03 4.52 5.53 4.55 5.29 5.15 5.51 6.25 6.21 6.11 4.48 4.40 5.17 1970 4.27 4.16 4.50 5.33 5.68 5.41 7.05 6.19 5.18 4.82 4.46 4.19 5.10 1971 3.72 3.61 4.44 5.00 4.84 5.76 6.27 6.68 5.75 5.20 5.90 4.41 5.13 1972 3.97 3.79 4.71 5.14 5.95 5.48 5.48 ****** 5.87 4.82 4.48 3.84 ****** 1973 3.00 4.01 4.28 4.94 4.79 8.25 9.17 6.64 5.47 6.46 5.97 3.68 5.55 1974 ****** 3.97 4.55 5.79 5.88 5.74 6.12 4.78 4.68 3.12 2.97 2.92 ****** 1975 3.29 2.84 3.42 4.18 4.48 4.50 3.32 3.38 3.16 3.07 3.23 3.36 3.52 1976 3.29 3.20 3.39 3.12 3.38 5.15 3.77 2.87 1.71 ****** 4.07 3.79 ****** 1977 2.99 3.04 1.96 5.41 6.63 19.33 5.87 9.97 4.62 4.53 4.28 3.57 6.02 1978 3.03 4.71 4.84 3.91 4.54 4.19 4.73 4.42 5.19 6.04 4.27 3.96 4.49 1979 3.64 5.04 4.11 3.81 5.45 5.50 6.14 5.42 4.10 4.73 3.53 3.97 4.62 1980 3.51 3.63 4.60 5.12 5.38 6.01 5.53 5.29 4.85 5.32 4.69 3.55 4.79 1981 3.57 3.78 3.86 4.15 5.14 5.19 6.33 4.08 4.33 4.05 3.78 2.58 4.24 1982 2.88 2.50 3.69 3.71 5.29 5.40 5.27 5.03 4.37 4.52 4.23 3.78 4.22 1983 3.71 2.77 3.13 5.16 4.94 4.88 5.07 5.59 4.85 3.79 3.49 3.33 4.23 1984 3.36 3.34 4.84 3.73 4.12 4.32 4.55 5.86 4.47 3.79 4.52 2.78 4.14 1985 3.83 2.36 2.95 3.50 2.75 3.37 5.98 5.29 4.69 4.44 3.90 3.80 3.90 1986 ****** 4.59 3.85 5.74 4.84 5.31 4.71 5.17 4.36 5.06 4.24 3.90 ****** 1987 3.02 3.68 4.54 5.11 5.85 3.78 9.64 6.57 6.79 4.96 3.45 3.05 5.04 1988 3.07 4.12 4.34 5.12 3.66 6.36 6.92 5.77 4.31 4.27 3.45 3.15 4.54 1989 2.82 3.18 4.12 3.42 5.36 4.18 6.13 5.06 4.47 4.77 4.32 3.60 4.29 1990 3.89 3.60 3.39 4.02 4.37 5.63 7.31 6.02 5.49 4.38 3.83 3.42 4.61 1991 4.57 3.54 5.10 4.22 4.90 4.70 6.97 6.86 5.30 5.35 4.34 4.25 5.01 1992 3.38 2.74 3.19 4.68 5.86 5.96 5.99 8.34 4.55 4.26 3.85 4.92 4.81 1993 3.88 5.27 3.47 4.98 5.17 5.05 5.21 5.68 5.24 3.81 3.92 3.40 4.59 1994 3.78 2.90 4.32 4.45 5.37 6.15 8.59 6.00 4.19 6.25 5.45 2.78 5.02 1995 3.27 4.12 3.98 6.17 4.19 5.50 7.00 6.14 4.59 4.58 3.33 4.14 4.75 1996 3.90 4.72 5.15 5.17 7.16 6.35 5.23 5.22 5.84 4.32 3.25 3.05 4.95 1997 3.21 2.47 3.01 4.19 4.81 7.40 6.68 5.59 4.99 5.35 4.69 4.67 4.75 1998 3.96 3.88 4.24 4.78 4.74 5.71 6.85 6.50 7.00 4.82 4.15 3.88 5.04 1999 4.47 3.77 5.05 5.67 5.91 7.85 10.09 6.73 7.47 6.13 4.84 4.11 6.01 2000 3.29 3.55 2.77 4.18 5.28 5.28 6.13 6.34 5.53 5.39 4.48 5.26 4.79 MEAN 3.77 3.94 4.30 5.00 5.64 6.43 6.90 6.57 5.74 5.28 4.53 3.90 5.16 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 -6.5 11 -7.1 2 -2.5 6 4.0 4 13.1 3 14.0 9 20.1 5 15.0 12 16.1 23 -1.0 31 -3.0 28 -3.0 22 -7.1 1962 -3.0 22 -5.0 23 1.0 5 7.1 9 12.0 1 14.1 12 21.0 31 16.1 31 5.0 27 4.0 13 -6.0 30 -6.2 1 -6.2 1963 -4.2 10 -1.4 6 -2.0 9 10.0 2 12.1 19 19.0 25 18.1 1 17.1 23 10.1 12 7.1 12 0.0 20 -9.0 30 -9.0 1964 ***** ** -5.1 1 1.1 3 5.1 2 9.2 4 18.0 6 21.1 16 21.1 23 8.0 26 3.1 16 -6.2 30 -11.0 11 ***** 1965 -6.0 7 -3.1 11 -1.0 17 0.1 7 8.1 5 20.0 8 22.0 28 17.1 24 12.0 10 7.1 27 0.0 26 -5.1 24 -6.0 1966 -3.1 17 0.0 6 0.1 3 6.0 6 12.1 11 20.0 1 21.1 3 19.1 17 14.0 14 7.0 22 -3.1 25 -4.0 24 -4.0 1967 -5.0 1 -6.0 4 -2.1 1 2.1 4 10.0 1 15.0 7 21.1 4 15.1 27 13.0 26 6.0 24 -4.0 30 -7.0 26 -7.0 1968 -7.0 20 -6.0 6 -0.1 25 7.0 14 10.0 5 17.0 1 17.1 13 18.1 28 8.0 21 5.0 31 3.0 23 -3.0 24 -7.0 1969 -9.0 8 -4.2 2 0.0 25 4.0 15 9.0 3 14.0 23 18.0 14 16.0 22 14.0 10 9.0 15 -3.2 18 -2.0 12 -9.0 1970 -3.2 4 -3.2 2 1.0 17 8.1 26 12.0 9 14.0 12 20.1 8 20.0 25 9.0 21 4.1 28 2.0 27 -6.2 17 -6.2 1971 -10.0 27 -4.0 14 1.0 3 7.0 20 14.1 1 20.0 2 19.1 22 20.1 25 11.1 21 4.0 14 4.0 15 -2.3 25 -10.0 1972 -6.0 25 -8.0 3 1.0 21 7.0 17 12.0 10 19.1 8 18.0 19 ***** ** 14.0 25 10.0 30 -0.1 26 -10.2 27 ***** 1973 -10.4 2 -4.3 8 -1.0 11 7.2 11 14.2 2 19.2 7 22.6 27 16.2 13 13.2 18 12.2 20 7.0 13 -6.2 27 -10.4 1974 ***** ** -7.0 3 1.0 21 6.2 27 10.0 23 19.0 20 16.0 26 18.0 30 12.4 26 2.0 16 0.0 28 -6.0 6 ***** 1975 -8.0 17 -5.0 12 -4.0 7 7.0 2 14.0 13 17.0 4 20.0 31 19.0 29 15.0 2 4.0 25 -1.0 7 -7.0 26 -8.0 1976 -4.0 17 -9.0 17 -3.0 3 1.0 1 11.0 1 17.0 6 21.0 28 17.0 15 15.0 27 6.0 31 -4.0 14 -2.0 8 -9.0 1977 -8.0 26 -8.0 6 -2.0 1 7.0 5 11.0 1 20.0 2 23.0 30 16.0 20 14.0 18 7.0 24 1.0 16 -6.0 28 -8.0 1978 -11.0 15 -4.0 6 2.0 21 7.0 16 6.0 9 14.0 3 19.0 9 19.0 14 13.0 29 9.0 4 0.0 21 -2.0 25 -11.0 1979 -4.0 28 0.0 1 -2.0 4 7.0 17 9.0 1 18.0 4 22.0 27 15.0 31 12.0 29 9.0 29 -4.0 19 -3.0 24 -4.0 1980 -4.0 9 -7.0 4 2.0 5 6.0 19 13.0 18 18.0 2 21.0 2 19.0 31 13.0 24 8.0 31 3.0 26 -2.0 16 -7.0 1981 -3.0 10 -2.0 3 3.0 1 5.0 2 12.0 4 15.0 7 20.0 31 20.0 24 10.0 26 3.0 31 0.0 24 -1.0 16 -3.0 1982 -4.5 21 -5.0 20 -1.0 8 5.0 1 15.0 10 17.0 3 19.0 3 16.0 29 13.0 27 5.0 26 -2.0 30 -6.0 12 -6.0 1983 -5.0 13 -4.0 3 0.0 12 6.0 4 13.0 1 19.0 1 21.0 15 21.0 27 14.0 22 6.0 21 7.5 29 -6.0 23 -6.0 1984 -4.5 6 -7.5 20 2.0 1 5.0 5 10.5 8 18.8 10 22.5 5 23.0 2 9.5 30 4.0 24 4.0 27 -7.0 22 -7.5 1985 -5.0 7 -3.0 7 -3.0 6 5.0 18 7.0 24 18.5 14 19.0 17 12.0 31 14.5 15 6.0 26 4.0 20 -3.0 30 -5.0 1986 ***** ** -0.3 3 -1.8 17 9.6 1 14.0 1 19.2 10 19.0 23 18.4 12 14.0 15 7.4 31 0.0 25 -8.7 12 ***** 1987 -2.8 14 -1.3 12 2.2 22 5.6 6 11.8 7 20.6 1 19.4 5 21.2 25 15.8 25 4.6 18 -1.8 30 -5.2 4 -5.2 1988 -5.8 3 -1.6 8 2.6 25 5.4 3 15.4 7 21.0 28 22.5 1 19.4 27 15.6 30 9.4 3 -1.6 16 -7.2 30 -7.2 1989 -8.0 5 -7.4 4 3.4 13 2.8 1 8.2 1 19.0 2 24.0 26 18.6 1 9.8 24 8.8 25 2.4 24 -0.6 9 -8.0 1990 -4.2 13 -2.0 8 -2.2 21 7.0 9 14.6 15 19.0 3 21.6 13 22.0 15 16.4 19 6.6 20 3.2 25 -4.4 29 -4.4 1991 -2.0 9 -6.6 14 1.6 12 8.0 14 10.4 5 19.8 2 20.4 15 18.6 24 11.0 28 9.4 31 1.0 29 -5.0 20 -6.6 1992 -6.5 29 -4.0 13 -2.6 13 7.2 7 7.2 2 19.6 14 22.8 26 16.0 31 10.5 13 7.5 30 -2.5 29 -4.0 29 -6.5 1993 -2.6 21 -3.4 17 0.9 24 10.0 1 12.0 9 18.8 23 22.0 24 18.8 26 12.2 19 3.8 9 -2.2 30 -4.0 1 -4.0 1994 -5.0 12 -3.4 20 3.4 3 2.8 5 14.0 7 17.5 6 22.0 15 21.0 19 11.4 18 6.8 13 4.0 13 -7.4 9 -7.4 1995 -4.0 24 -2.2 26 0.2 7 7.0 7 14.2 10 17.8 24 19.6 27 21.5 11 13.4 22 5.0 28 -2.6 30 -3.0 1 -4.0 1996 -9.0 16 0.0 4 0.4 1 3.6 5 13.6 2 17.6 18 21.4 15 18.8 31 17.8 1 7.2 20 -1.2 19 -2.8 7 -9.0 1997 -3.6 30 -6.6 8 -1.4 9 4.2 13 10.0 6 20.0 2 23.8 1 19.0 30 16.4 17 10.0 25 2.8 9 -0.8 30 -6.6 1998 -3.4 16 -1.4 24 0.2 2 9.8 8 10.8 3 21.0 1 21.8 26 22.4 27 14.8 17 10.6 12 4.8 27 2.0 16 -3.4 1999 -6.0 3 0.4 2 0.0 19 8.0 12 12.4 22 21.4 7 20.8 22 20.0 29 14.8 29 8.4 27 0.6 30 -1.6 6 -6.0 2000 -4.6 13 -2.6 10 -0.8 16 10.0 2 16.2 12 14.0 14 18.8 21 20.8 26 18.0 26 10.4 30 1.4 12 -0.6 30 -4.6 LOW. -11.0 15 -9.0 17 -4.0 7 0.1 7 6.0 9 14.0 9 16.0 26 12.0 31 5.0 27 -1.0 31 -6.2 30 -11.0 11 -11.0 YEAR 1978 1976 1975 1965 1978 1961 1974 1985 1962 1961 1964 1964 1964 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 21.0 22 22.0 14 29.1 26 34.1 29 40.0 26 42.1 6 46.0 12 41.1 1 42.0 4 35.1 3 28.1 7 22.1 6 46.0 1962 21.1 6 28.1 20 32.0 25 31.0 10 37.1 23 41.1 16 42.0 3 42.0 22 41.0 13 35.0 7 28.0 6 23.0 7 42.0 1963 26.0 26 28.0 24 29.0 16 35.0 11 38.0 29 43.1 22 45.0 15 42.0 10 41.1 6 36.0 22 28.0 2 22.1 23 45.0 1964 ***** ** 24.1 23 33.0 26 34.1 29 39.2 17 44.0 27 47.0 11 45.1 22 38.2 3 36.1 22 29.0 21 18.0 7 ***** 1965 17.1 13 25.0 14 32.0 11 37.1 29 41.1 17 42.1 16 45.1 14 42.1 2 41.1 7 38.1 15 31.1 7 24.1 15 45.1 1966 26.1 27 27.1 26 29.1 12 34.1 17 39.0 16 45.0 21 44.1 6 43.0 30 41.0 7 34.1 1 27.1 1 21.1 18 45.0 1967 23.0 18 24.1 24 28.1 7 33.0 24 40.1 31 41.0 20 46.1 9 43.0 21 42.1 8 34.0 11 30.0 2 21.0 15 46.1 1968 23.1 15 24.0 29 32.2 13 39.0 21 39.0 21 44.0 28 46.0 5 43.1 17 41.1 6 36.0 4 25.1 15 21.1 3 46.0 1969 15.0 21 23.0 28 32.0 31 35.0 1 41.1 27 44.1 30 45.1 1 40.1 17 37.1 5 37.0 5 27.1 1 20.1 6 45.1 1970 16.1 1 24.1 19 32.0 31 39.0 18 43.0 27 46.1 24 45.0 2 44.1 28 41.1 8 37.0 1 30.0 1 24.1 4 46.1 1971 21.0 5 25.1 27 32.0 28 33.1 17 40.0 16 44.1 24 45.1 8 44.1 19 40.0 12 33.2 8 30.1 4 23.1 8 45.1 1972 14.0 16 19.0 18 25.1 31 35.0 30 38.2 29 45.0 30 45.0 1 ***** ** 41.0 13 37.1 5 31.0 4 16.1 1 ***** 1973 16.0 13 24.0 28 30.0 21 37.0 30 39.2 29 45.0 13 45.0 13 40.2 1 39.2 2 36.2 11 28.2 9 13.2 1 45.0 1974 ***** ** 11.2 25 24.0 30 33.2 30 39.0 29 45.0 28 45.5 5 42.0 20 39.4 2 31.2 3 31.0 4 17.0 3 ***** 1975 16.0 10 24.0 28 23.0 1 34.0 15 39.0 10 42.0 26 45.0 18 41.4 3 39.0 15 35.0 4 24.0 26 13.0 1 45.0 1976 17.0 9 17.0 5 19.0 1 32.0 18 38.0 25 44.0 29 44.0 4 42.0 4 38.0 9 35.0 1 25.0 5 18.0 11 44.0 1977 ***** ** ***** ** ***** ** ***** ** ***** ** 43.0 20 ***** ** 45.0 17 39.5 29 36.0 4 25.0 11 24.5 5 ***** 1978 23.0 21 22.0 18 29.0 24 38.0 8 39.0 20 44.0 30 48.0 1 41.0 27 39.0 9 33.0 1 26.0 1 21.0 2 48.0 1979 22.0 6 21.0 17 27.0 26 36.0 4 37.0 23 41.0 20 45.0 8 39.5 1 41.0 9 35.0 5 30.0 2 18.0 3 45.0 1980 18.0 13 19.0 18 29.0 30 36.0 23 40.0 23 44.0 8 43.0 31 43.0 20 39.0 7 38.0 4 26.0 10 22.0 4 44.0 1981 ***** ** 23.0 19 30.0 21 36.0 23 41.0 27 42.0 19 45.0 6 42.0 20 41.0 19 32.0 5 27.0 2 21.0 4 ***** 1982 20.0 10 19.0 5 27.0 25 37.0 27 40.0 19 45.0 12 45.0 29 46.0 4 38.0 4 34.0 7 25.0 5 16.0 5 46.0 1983 18.5 2 23.0 21 25.0 5 32.0 20 38.0 16 44.0 20 45.0 6 45.0 16 42.0 8 36.0 2 29.0 1 24.0 1 45.0 1984 16.0 7 24.0 9 27.0 8 34.0 10 40.0 29 42.5 21 41.5 27 45.0 14 41.0 1 33.0 5 27.0 3 16.0 4 45.0 1985 19.0 31 24.5 15 28.0 20 35.0 21 38.5 31 43.5 24 45.0 26 39.5 6 39.0 4 37.0 1 26.0 4 24.0 3 45.0 1986 ***** ** 22.0 28 24.3 1 31.0 17 39.0 25 40.5 13 42.5 26 40.0 23 38.4 26 36.7 5 29.3 3 19.4 1 ***** 1987 21.6 31 24.4 28 26.2 2 36.2 19 39.4 12 41.8 18 43.3 7 41.7 16 41.2 6 35.2 4 29.8 6 20.8 20 43.3 1988 17.4 29 25.8 2 30.0 21 34.0 20 42.0 28 42.8 15 44.4 12 43.0 4 41.8 12 32.0 20 29.8 4 22.2 12 44.4 1989 14.5 2 19.2 28 26.6 26 33.0 15 41.0 26 43.4 27 45.8 8 42.6 4 40.0 13 36.6 9 26.6 29 25.4 1 45.8 1990 16.4 1 23.2 20 27.6 13 35.2 27 41.0 25 44.8 29 42.2 28 45.0 10 42.2 1 36.2 1 30.2 10 22.0 4 45.0 1991 16.4 31 19.8 27 26.0 25 35.0 22 39.4 30 42.4 28 44.6 7 44.2 7 42.0 8 31.0 27 29.6 4 23.0 1 44.6 1992 15.8 16 25.2 24 25.4 30 31.6 22 36.7 31 42.3 24 44.2 2 40.4 26 38.4 25 31.8 11 27.4 7 19.2 17 44.2 1993 19.8 29 21.4 28 25.6 8 35.2 20 39.0 27 44.6 18 41.6 4 42.0 22 39.8 14 36.0 1 28.0 2 18.8 29 44.6 1994 19.6 4 24.6 1 29.4 31 36.8 25 37.0 31 43.2 26 44.6 8 43.4 3 36.4 1 32.2 2 28.4 5 27.7 20 44.6 1995 21.0 31 22.0 5 28.6 25 32.6 3 37.8 7 43.8 22 46.5 11 44.0 23 41.0 10 36.0 4 29.6 4 16.2 31 46.5 1996 17.0 8 26.0 10 26.8 31 32.6 21 40.0 31 43.0 1 42.6 8 43.0 27 42.0 8 34.4 14 25.2 8 22.6 28 43.0 1997 21.2 7 25.6 22 25.4 24 34.8 28 39.0 28 43.6 17 46.6 24 44.0 15 41.8 1 36.6 3 27.2 5 20.0 10 46.6 1998 17.0 26 26.8 8 29.4 25 36.4 16 40.2 12 41.6 28 46.0 5 44.2 18 42.4 5 37.6 1 28.4 1 22.4 1 46.0 1999 15.8 30 25.2 27 27.0 31 32.0 30 41.0 31 45.6 29 46.6 5 42.8 30 41.8 15 35.0 12 26.6 1 19.8 28 46.6 2000 19.8 2 21.8 24 30.6 24 35.8 10 42.0 26 43.2 24 42.6 8 42.4 3 40.2 8 33.0 26 26.4 3 21.2 22 43.2 HIG. 26.1 27 28.1 20 33.0 26 39.0 21 43.0 27 46.1 24 48.0 1 46.0 4 42.4 5 38.1 15 31.1 7 27.7 20 48.0 YEAR 1966 1962 1964 1968 1970 1970 1978 1982 1998 1965 1965 1994 1978 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 5.0 5 0.0 ** 3.0 23 13.0 3 12.0 22 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 13.0 1962 8.0 16 1.0 28 1.0 1 22.0 24 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.0 24 0.0 ** 5.0 12 22.0 1963 0.0 ** 3.0 2 20.0 28 5.0 22 3.0 18 0.0 ** 0.0 ** 0.0 ** 1.0 10 0.0 ** 0.0 ** 3.0 4 20.0 1964 ***** ** 5.0 13 10.0 29 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 8.0 26 ***** 1965 8.0 11 0.0 ** 15.0 3 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 15.0 1966 5.0 13 6.0 10 1.0 1 1.5 25 2.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.4 15 0.0 ** 0.3 19 6.0 1967 1.5 22 0.4 16 0.0 ** 1.0 15 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.6 20 0.0 ** 1.5 1968 0.0 ** 1.0 3 0.7 6 0.4 23 1.8 27 0.2 7 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 18 7.5 7 7.5 1969 11.0 25 0.0 ** 0.6 24 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.3 28 0.9 4 0.5 3 11.0 1970 1.2 12 0.4 23 0.0 ** 0.0 ** 0.5 2 0.0 ** 0.3 18 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.2 1971 0.0 ** 0.2 24 8.0 6 0.6 26 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 14.0 12 13.0 20 14.0 1972 4.5 27 20.0 9 12.5 2 6.0 25 18.0 10 0.0 ** 0.0 ** ***** ** 0.0 ** 0.0 ** 0.0 ** 6.0 7 ***** 1973 2.0 18 14.5 10 2.0 22 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 5.0 24 14.5 1974 ***** ** 13.0 19 12.0 2 6.0 25 5.5 21 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.1 8 6.0 27 ***** 1975 9.5 25 1.0 22 0.0 ** 32.0 17 2.5 14 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 29 2.0 20 32.0 1976 0.0 ** 4.5 24 17.5 25 7.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 20.0 30 7.0 29 7.0 31 20.0 1977 8.0 18 0.0 ** 0.0 ** 15.0 1 10.0 25 0.0 ** 0.0 ** 0.0 ** 0.0 ** 13.0 26 2.0 13 3.0 24 15.0 1978 5.0 27 17.0 25 5.0 7 3.0 13 5.0 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 5.5 11 23.0 3 23.0 1979 17.0 24 4.0 18 15.0 16 2.0 14 53.0 8 7.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 5 10.0 16 53.0 1980 8.0 23 7.0 25 1.5 27 3.0 4 6.5 17 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 26 1.5 25 3.5 21 8.0 1981 4.0 4 10.0 11 7.5 28 3.5 17 0.0 ** 2.0 27 0.5 22 0.0 ** 0.0 ** 3.0 14 4.0 23 0.5 26 10.0 1982 9.5 17 24.0 25 7.5 29 0.0 ** 2.0 25 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 3 3.5 11 17.5 16 24.0 1983 12.5 21 0.0 ** 12.0 6 18.0 2 1.0 3 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 17 18.0 1984 16.5 16 16.0 24 9.0 23 1.5 17 3.0 10 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 8 2.0 16 0.0 ** 16.5 1985 2.5 2 2.5 1 1.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.0 14 2.0 23 2.5 1986 ***** ** 17.0 16 9.0 8 3.0 11 0.2 5 0.0 ** 0.3 22 0.0 ** 0.0 ** 0.0 ** 2.3 23 13.0 20 ***** 1987 0.0 ** 6.0 21 52.0 31 18.0 5 1.0 28 0.0 ** 0.3 26 0.0 ** 0.0 ** 11.0 27 0.0 ** 0.0 ** 52.0 1988 2.0 7 22.0 3 24.0 24 1.0 26 0.0 ** 0.0 ** 0.5 28 0.2 25 0.2 3 0.3 16 0.3 15 0.6 17 24.0 1989 5.0 3 12.2 19 2.0 16 0.4 30 0.8 8 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.0 9 1.5 15 12.2 1990 9.0 2 5.0 16 1.0 30 3.8 11 0.3 13 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 12.0 26 12.0 1991 8.2 3 6.0 22 6.2 6 1.0 5 25.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.0 17 0.9 16 12.0 22 25.0 1992 3.6 25 0.2 27 3.0 10 16.9 7 13.2 12 1.0 3 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 11.3 4 16.9 1993 11.0 14 16.4 23 2.0 9 13.0 27 19.9 7 0.8 3 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.0 5 1.0 3 19.9 1994 4.0 24 0.4 24 9.0 12 2.5 2 4.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 16 7.2 17 0.8 1 9.0 1995 1.0 1 12.2 6 4.9 21 6.6 13 0.5 28 0.0 ** 0.0 ** 0.0 ** 0.7 22 0.0 ** 0.0 ** 5.0 12 12.2 1996 15.0 12 29.0 22 19.0 4 5.0 22 10.0 14 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.2 15 29.0 1997 8.0 17 0.2 19 7.4 25 1.0 4 3.2 5 3.0 6 0.0 ** 0.0 ** 0.0 ** 0.9 24 2.0 13 4.0 14 8.0 1998 8.0 5 14.1 12 25.0 1 3.0 6 7.2 30 0.0 ** 0.2 25 0.0 ** 0.1 14 0.8 11 0.0 ** 0.1 3 25.0 1999 10.8 18 0.1 4 30.0 2 4.0 22 0.0 ** 0.0 ** 0.6 15 0.0 ** 0.0 ** 0.0 ** 5.3 11 2.0 16 30.0 2000 12.2 29 4.4 14 0.2 25 3.0 20 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.4 4 6.8 4 1.0 6 6.8 6 12.2 HIG. 17.0 24 29.0 22 52.0 31 32.0 17 53.0 8 7.0 4 0.6 15 0.2 25 1.0 10 20.0 30 14.0 12 23.0 3 53.0 YEAR 1979 1996 1987 1975 1979 1979 1999 1988 1963 1976 1971 1978 1979 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1961 9.0 0.0 7.0 45.0 13.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 74.0 21.6 78.4 0.0 0.0 1962 14.0 1.0 1.0 37.0 0.0 0.0 0.0 0.0 0.0 3.0 0.0 9.5 65.5 24.4 56.5 0.0 19.1 1963 0.0 4.0 26.0 7.0 6.0 0.0 0.0 0.0 1.0 0.0 0.0 3.0 47.0 63.8 27.7 2.1 6.4 1964 ****** 5.0 15.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17.0 ****** 54.1 0.0 0.0 45.9 1965 18.0 0.0 15.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 33.0 100.0 0.0 0.0 0.0 1966 5.0 6.0 1.2 1.5 2.1 0.0 0.0 0.0 0.0 0.8 0.0 0.3 16.9 72.2 21.3 0.0 6.5 1967 1.5 0.4 0.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 0.0 4.7 40.4 42.6 0.0 17.0 1968 0.0 1.7 1.3 0.4 2.0 0.2 0.0 0.0 0.0 0.0 2.5 7.9 16.0 18.8 16.3 0.0 65.0 1969 30.0 0.0 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.9 0.8 32.6 93.9 0.0 0.0 6.1 1970 1.4 0.4 0.0 0.0 0.5 0.0 0.3 0.0 0.0 0.0 0.0 0.0 2.6 69.2 19.2 11.5 0.0 1971 0.0 0.2 8.7 1.1 0.0 0.0 0.0 0.0 0.0 0.0 17.5 24.0 51.5 17.3 2.1 0.0 80.6 1972 7.3 38.0 28.5 6.0 23.5 0.0 0.0 ****** 0.0 0.0 0.0 10.0 ****** 65.1 26.0 0.0 8.8 1973 2.0 14.5 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.0 28.5 64.9 0.0 0.0 35.1 1974 ****** 30.5 26.0 6.0 5.5 0.0 0.0 0.0 0.0 0.0 0.1 14.0 ****** 68.8 14.0 0.0 17.2 1975 19.5 1.0 0.0 43.0 2.5 0.0 0.0 0.0 0.0 0.0 11.0 7.0 84.0 24.4 54.2 0.0 21.4 1976 0.0 9.5 51.5 10.0 0.0 0.0 0.0 0.0 0.0 26.5 13.5 11.0 122.0 50.0 8.2 0.0 41.8 1977 40.0 0.0 0.0 52.5 22.0 0.0 0.0 0.0 0.0 19.0 3.0 8.5 145.0 27.6 51.4 0.0 21.0 1978 11.5 44.0 11.0 3.0 5.0 0.0 0.0 0.0 0.0 0.0 19.0 41.0 134.5 49.4 5.9 0.0 44.6 1979 25.0 8.0 33.0 2.0 67.0 7.0 0.0 0.0 0.0 0.0 1.0 22.0 165.0 40.0 46.1 0.0 13.9 1980 16.0 13.0 3.5 3.0 8.5 0.0 0.0 0.0 0.0 1.5 3.0 5.5 54.0 60.2 21.3 0.0 18.5 1981 7.5 17.0 20.0 4.0 0.0 2.0 0.5 0.0 0.0 3.0 4.0 0.5 58.5 76.1 10.3 0.9 12.8 1982 18.5 31.0 17.5 0.0 2.0 0.0 0.0 0.0 0.0 1.0 5.5 25.0 100.5 66.7 2.0 0.0 31.3 1983 23.0 0.0 16.0 40.5 2.0 0.0 0.0 0.0 0.0 0.0 0.0 11.0 92.5 42.2 45.9 0.0 11.9 1984 20.5 16.0 22.5 1.5 9.5 0.0 0.0 0.0 0.0 1.0 2.0 0.0 73.0 80.8 15.1 0.0 4.1 1985 4.5 3.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 2.0 12.5 68.0 0.0 0.0 32.0 1986 ****** 34.9 25.5 12.0 0.5 0.0 0.3 0.0 0.0 0.0 4.0 18.4 ****** 63.2 13.1 0.3 23.4 1987 0.0 8.5 68.8 26.7 2.0 0.0 0.3 0.0 0.0 14.0 0.0 0.0 120.3 64.3 23.9 0.2 11.6 1988 4.5 44.9 58.5 2.7 0.0 0.0 0.6 0.2 0.2 0.3 0.3 1.0 113.2 95.3 2.4 0.9 1.4 1989 10.9 25.3 4.6 0.4 0.9 0.0 0.0 0.0 0.0 0.0 5.3 1.8 49.2 82.9 2.6 0.0 14.4 1990 26.2 13.4 2.3 5.9 0.3 0.0 0.0 0.0 0.0 0.0 0.0 12.0 60.1 69.7 10.3 0.0 20.0 1991 21.0 6.6 13.3 1.3 31.4 0.0 0.0 0.0 0.0 4.0 0.9 23.0 101.5 40.3 32.2 0.0 27.5 1992 6.2 0.2 7.7 19.3 30.8 1.9 0.0 0.0 0.0 0.0 0.0 25.7 91.8 15.4 56.6 0.0 28.0 1993 22.4 35.4 2.9 22.5 24.2 0.8 0.0 0.0 0.0 0.0 2.1 2.1 112.4 54.0 42.3 0.0 3.7 1994 7.1 0.4 17.3 8.1 4.2 0.0 0.0 0.0 0.0 5.0 11.0 0.8 53.9 46.0 22.8 0.0 31.2 1995 1.0 29.7 6.9 19.2 0.5 0.0 0.0 0.0 1.2 0.0 0.0 11.4 69.9 53.8 28.2 1.7 16.3 1996 19.8 48.1 36.1 9.8 23.8 0.0 0.0 0.0 0.0 0.0 0.0 0.2 137.8 75.5 24.4 0.0 0.1 1997 8.0 0.2 11.8 1.2 3.3 3.9 0.0 0.0 0.0 1.3 4.0 11.5 45.2 44.2 18.6 0.0 37.2 1998 15.3 24.9 29.7 7.6 11.2 0.0 0.2 0.0 0.1 1.3 0.0 0.1 90.4 77.3 20.8 0.3 1.5 1999 35.8 0.2 61.6 6.0 0.0 0.0 1.0 0.0 0.0 0.0 12.6 2.5 119.7 81.5 5.0 0.8 12.6 2000 14.7 7.6 0.2 3.0 0.0 0.0 0.0 0.0 0.4 7.0 2.4 18.0 53.3 42.2 5.6 0.8 51.4 MEAN 12.6 13.1 16.4 10.3 7.6 0.4 0.1 0.0 0.1 2.2 3.2 9.0 75.0 56.5 24.3 0.0 19.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 4 0 3 6 2 0 0 0 0 0 0 0 15 1962 2 1 1 2 0 0 0 0 0 2 0 3 11 1963 0 2 2 2 3 0 0 0 1 0 0 1 11 1964 *** 1 3 0 0 0 0 0 0 0 0 3 *** 1965 4 0 1 0 0 0 0 0 0 0 0 0 5 1966 1 1 2 1 2 0 0 0 0 2 0 1 10 1967 1 1 0 4 0 0 0 0 0 0 2 0 8 1968 0 3 3 1 2 1 0 0 0 0 4 2 16 1969 5 0 1 0 0 0 0 0 0 1 1 2 10 1970 2 1 0 0 1 0 1 0 0 0 0 0 5 1971 0 1 2 2 0 0 0 0 0 0 2 2 9 1972 5 3 4 1 2 0 0 *** 0 0 0 2 *** 1973 1 1 1 0 0 0 0 0 0 0 0 3 6 1974 *** 6 4 1 1 0 0 0 0 0 1 4 *** 1975 4 1 0 4 1 0 0 0 0 0 4 4 18 1976 0 3 7 3 0 0 0 0 0 2 2 2 19 1977 9 0 0 6 3 0 0 0 0 3 2 5 28 1978 4 5 5 1 1 0 0 0 0 0 7 4 27 1979 4 3 5 1 3 1 0 0 0 0 1 4 22 1980 3 4 3 1 2 0 0 0 0 2 3 3 21 1981 3 3 3 2 0 1 1 0 0 1 1 1 16 1982 4 5 4 0 1 0 0 0 0 1 2 2 19 1983 4 0 2 7 2 0 0 0 0 0 0 3 18 1984 4 1 6 1 4 0 0 0 0 1 1 0 18 1985 3 2 1 0 0 0 0 0 0 0 1 1 8 1986 *** 6 8 9 3 0 1 0 0 0 6 7 *** 1987 0 5 8 6 4 0 1 0 0 3 0 0 27 1988 5 8 7 3 0 0 2 1 1 1 1 2 31 1989 4 6 5 1 2 0 0 0 0 0 4 2 24 1990 7 5 3 3 1 0 0 0 0 0 0 1 20 1991 9 3 10 4 4 0 0 0 0 3 1 7 41 1992 9 1 6 5 11 3 0 0 0 0 0 9 44 1993 5 7 5 4 5 1 0 0 0 0 2 4 33 1994 3 1 5 6 2 0 0 0 0 3 5 1 26 1995 1 5 2 7 1 0 0 0 2 0 0 5 23 1996 5 7 10 4 5 0 0 0 0 0 0 1 32 1997 1 1 4 2 2 3 0 0 0 2 4 5 24 1998 6 6 5 5 2 0 1 0 1 2 0 1 29 1999 8 2 7 5 0 0 3 0 0 0 4 3 32 2000 5 4 1 1 0 0 0 0 1 2 4 10 28 MEAN 4 3 4 3 2 0 0 0 0 1 2 3 22 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 4 0 3 6 2 0 0 0 0 0 0 0 15 1962 2 1 1 2 0 0 0 0 0 2 0 3 11 1963 0 2 2 2 3 0 0 0 1 0 0 1 11 1964 *** 1 3 0 0 0 0 0 0 0 0 3 *** 1965 4 0 1 0 0 0 0 0 0 0 0 0 5 1966 1 1 1 1 1 0 0 0 0 0 0 0 5 1967 1 0 0 1 0 0 0 0 0 0 0 0 2 1968 0 1 0 0 1 0 0 0 0 0 1 1 4 1969 5 0 0 0 0 0 0 0 0 0 0 0 5 1970 1 0 0 0 0 0 0 0 0 0 0 0 1 1971 0 0 1 0 0 0 0 0 0 0 2 2 5 1972 2 3 4 1 2 0 0 *** 0 0 0 2 *** 1973 1 1 1 0 0 0 0 0 0 0 0 3 6 1974 *** 6 4 1 1 0 0 0 0 0 0 4 *** 1975 4 1 0 4 1 0 0 0 0 0 4 4 18 1976 0 3 7 3 0 0 0 0 0 2 2 2 19 1977 9 0 0 6 3 0 0 0 0 3 2 4 27 1978 4 5 5 1 1 0 0 0 0 0 7 4 27 1979 4 3 5 1 3 1 0 0 0 0 1 4 22 1980 3 4 3 1 2 0 0 0 0 1 2 3 19 1981 3 3 3 1 0 1 0 0 0 1 1 0 13 1982 4 4 4 0 1 0 0 0 0 1 2 2 18 1983 4 0 2 7 2 0 0 0 0 0 0 3 18 1984 4 1 6 1 4 0 0 0 0 1 1 0 18 1985 3 1 1 0 0 0 0 0 0 0 1 1 7 1986 *** 6 4 6 0 0 0 0 0 0 1 3 *** 1987 0 2 5 5 1 0 0 0 0 3 0 0 16 1988 1 5 5 2 0 0 0 0 0 0 0 0 13 1989 2 4 2 0 0 0 0 0 0 0 3 1 12 1990 5 5 1 2 0 0 0 0 0 0 0 1 14 1991 5 1 4 1 3 0 0 0 0 3 0 3 20 1992 2 0 2 2 6 1 0 0 0 0 0 5 18 1993 4 6 1 3 2 0 0 0 0 0 1 1 18 1994 2 0 5 4 1 0 0 0 0 1 2 0 15 1995 1 4 2 6 0 0 0 0 0 0 0 4 17 1996 3 5 4 3 4 0 0 0 0 0 0 0 19 1997 1 0 3 1 1 1 0 0 0 0 2 4 13 1998 3 4 4 3 2 0 0 0 0 0 0 0 16 1999 8 0 5 2 0 0 0 0 0 0 3 1 19 2000 2 3 0 1 0 0 0 0 0 1 2 5 14 MEAN 3 2 3 2 1 0 0 0 0 0 1 2 14 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 0 0 0 2 1 0 0 0 0 0 0 0 3 1962 0 0 0 2 0 0 0 0 0 0 0 0 2 1963 0 0 1 0 0 0 0 0 0 0 0 0 1 1964 *** 0 1 0 0 0 0 0 0 0 0 0 *** 1965 0 0 1 0 0 0 0 0 0 0 0 0 1 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 1 0 0 0 0 0 0 0 0 0 0 0 1 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 1 2 3 1972 0 2 2 0 1 0 0 *** 0 0 0 0 *** 1973 0 1 0 0 0 0 0 0 0 0 0 0 1 1974 *** 2 1 0 0 0 0 0 0 0 0 0 *** 1975 0 0 0 1 0 0 0 0 0 0 0 0 1 1976 0 0 2 0 0 0 0 0 0 1 0 0 3 1977 0 0 0 3 1 0 0 0 0 1 0 0 5 1978 0 3 0 0 0 0 0 0 0 0 0 1 4 1979 1 0 2 0 1 0 0 0 0 0 0 1 5 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 1 0 0 0 0 0 0 0 0 0 0 1 1982 0 1 0 0 0 0 0 0 0 0 0 1 2 1983 1 0 1 2 0 0 0 0 0 0 0 0 4 1984 1 1 0 0 0 0 0 0 0 0 0 0 2 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 *** 1 0 0 0 0 0 0 0 0 0 1 *** 1987 0 0 1 1 0 0 0 0 0 1 0 0 3 1988 0 2 3 0 0 0 0 0 0 0 0 0 5 1989 0 1 0 0 0 0 0 0 0 0 0 0 1 1990 0 0 0 0 0 0 0 0 0 0 0 1 1 1991 0 0 0 0 1 0 0 0 0 0 0 1 2 1992 0 0 0 1 1 0 0 0 0 0 0 1 3 1993 1 1 0 1 1 0 0 0 0 0 0 0 4 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 1 0 0 0 0 0 0 0 0 0 0 1 1996 1 1 1 0 1 0 0 0 0 0 0 0 4 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 1 1 0 0 0 0 0 0 0 0 0 2 1999 1 0 2 0 0 0 0 0 0 0 0 0 3 2000 1 0 0 0 0 0 0 0 0 0 0 0 1 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 80 64 54 69 42 36 35 45 44 50 59 63 53 1962 70 60 62 58 50 46 45 50 55 54 55 63 56 1963 67 67 67 58 54 43 40 48 47 59 66 69 57 1964 *** 72 69 59 54 47 44 53 51 55 79 77 *** 1965 79 68 64 46 41 40 41 47 61 69 82 72 59 1966 71 75 66 52 41 30 35 39 37 54 57 63 52 1967 52 62 47 51 34 26 30 29 29 43 50 49 42 1968 49 63 50 43 37 28 26 25 28 38 69 63 43 1969 69 68 48 37 32 23 29 37 43 46 60 60 46 1970 73 63 62 39 29 21 24 26 28 42 57 62 44 1971 60 60 58 51 25 20 20 27 37 48 73 66 45 1972 73 85 80 43 42 22 21 *** 38 37 53 72 *** 1973 83 69 51 39 29 23 27 31 28 34 56 59 44 1974 *** 73 71 43 41 33 29 33 36 44 45 56 *** 1975 58 47 52 38 35 20 18 25 26 39 60 65 40 1976 59 59 70 45 32 23 18 13 25 *** 68 69 *** 1977 65 65 44 50 42 28 25 22 27 49 63 68 46 1978 68 70 58 41 35 35 31 27 29 42 62 68 47 1979 72 68 60 37 48 36 27 30 33 40 57 69 48 1980 69 70 61 47 46 23 27 25 30 47 54 63 47 1981 67 62 50 46 35 24 21 21 27 43 51 63 43 1982 66 67 61 40 31 26 27 28 33 41 66 81 47 1983 77 64 54 53 33 23 22 25 32 37 43 60 44 1984 68 72 56 36 33 26 26 26 39 41 61 74 47 1985 69 58 64 45 31 23 28 40 37 50 64 66 48 1986 *** 71 58 55 33 29 28 30 29 38 56 68 *** 1987 58 57 53 47 34 23 36 32 38 50 42 53 44 1988 58 67 53 46 30 28 32 31 31 36 39 49 42 1989 69 65 53 31 32 23 27 27 29 34 51 58 42 1990 76 65 46 38 29 22 30 29 27 37 44 60 42 1991 82 60 66 37 39 29 30 32 36 46 54 65 48 1992 72 52 55 50 53 34 29 42 33 39 44 71 48 1993 77 79 58 45 36 31 31 33 31 35 55 63 48 1994 62 49 51 37 35 32 34 27 33 52 52 58 44 1995 58 60 51 55 32 32 28 28 31 43 38 75 44 1996 80 72 70 44 47 31 31 28 32 38 45 51 47 1997 56 42 47 37 33 33 26 26 29 38 60 75 42 1998 74 68 55 42 36 31 33 33 36 41 43 56 46 1999 73 53 64 46 33 31 40 30 39 42 60 67 48 2000 57 65 36 30 28 28 29 30 33 48 60 79 44 MEAN 68 64 57 45 37 29 30 32 35 44 56 65 47 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 52 33 25 41 24 21 17 21 23 27 36 46 31 1962 48 33 33 33 30 29 25 31 33 29 37 51 34 1963 42 44 41 35 32 23 19 26 24 32 38 47 34 1964 *** 46 42 33 38 33 29 33 32 38 47 58 *** 1965 68 42 36 32 26 23 20 32 33 38 51 49 38 1966 44 47 39 29 21 14 17 16 20 33 28 31 28 1967 40 42 22 25 18 10 12 13 17 18 28 31 23 1968 32 40 27 22 15 15 16 13 14 17 49 52 26 1969 60 52 24 20 13 11 12 16 18 20 39 36 27 1970 52 32 30 21 14 13 13 13 15 22 22 41 24 1971 42 35 28 19 14 12 13 16 18 20 35 43 25 1972 70 61 40 22 21 13 14 *** 15 17 29 57 *** 1973 52 38 26 21 14 18 21 18 15 19 41 53 28 1974 *** 61 43 25 23 16 15 24 16 22 21 37 *** 1975 45 28 26 20 17 11 6 7 9 13 23 41 21 1976 19 37 33 16 16 14 14 6 4 *** 32 47 *** 1977 56 26 12 24 26 45 15 19 13 18 31 36 27 1978 34 43 32 13 17 10 13 11 15 25 39 39 24 1979 40 37 34 13 21 14 13 14 11 16 31 48 24 1980 41 40 31 17 16 15 11 14 16 24 31 34 24 1981 39 33 23 20 20 17 17 11 15 19 22 27 22 1982 37 30 30 15 18 12 11 11 13 18 37 48 23 1983 52 24 24 25 15 11 9 11 14 18 20 38 22 1984 42 41 31 14 15 10 10 13 14 18 30 38 23 1985 41 19 25 15 10 10 14 15 14 22 29 39 21 1986 *** 46 35 28 16 16 12 15 13 24 34 49 *** 1987 30 30 31 24 19 10 23 15 22 29 21 30 24 1988 31 47 31 23 14 14 17 14 13 18 21 27 23 1989 42 40 26 15 19 11 13 12 14 19 27 34 23 1990 51 35 24 21 14 13 17 15 15 19 24 36 24 1991 54 35 39 18 20 14 16 17 18 25 31 46 28 1992 48 27 30 26 29 17 14 22 16 20 26 51 27 1993 56 53 29 22 19 14 14 16 15 19 34 37 27 1994 40 27 29 19 20 17 19 14 16 33 32 31 25 1995 34 40 26 32 16 17 15 14 14 22 21 50 25 1996 55 47 44 25 24 17 14 13 15 19 26 28 27 1997 33 25 24 18 17 18 13 13 14 21 36 49 23 1998 49 43 34 19 18 15 16 16 20 20 24 34 26 1999 49 26 39 26 19 17 24 15 22 24 35 39 28 2000 38 32 18 15 15 14 14 15 16 27 38 51 24 MEAN 45 38 30 23 19 16 15 16 17 23 31 41 26 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 64 46 37 49 30 26 22 28 29 36 54 67 41 1962 70 54 45 46 37 33 31 37 45 47 60 71 48 1963 62 58 53 44 41 29 32 33 42 47 56 63 47 1964 *** 59 57 44 47 38 34 41 39 49 58 71 *** 1965 80 53 45 30 28 27 25 36 43 52 60 63 45 1966 65 64 43 36 23 16 20 19 24 39 37 46 36 1967 57 55 28 36 22 13 17 15 20 28 43 47 32 1968 46 56 37 32 22 17 19 16 19 30 64 63 35 1969 68 65 38 26 21 14 14 20 24 32 48 52 35 1970 62 43 38 27 21 15 18 15 15 28 36 56 31 1971 57 42 35 30 17 15 17 18 22 33 52 58 33 1972 75 68 50 30 31 16 15 *** 18 21 41 64 *** 1973 55 45 34 28 19 20 22 19 20 27 44 62 33 1974 *** 67 49 34 31 17 16 14 15 18 29 43 *** 1975 50 39 42 31 18 12 7 10 11 20 37 60 28 1976 49 51 46 24 14 14 10 8 7 *** 48 54 *** 1977 61 40 15 27 23 44 13 27 15 26 42 46 32 1978 45 54 39 18 18 11 12 12 18 31 45 45 29 1979 50 58 38 17 27 16 15 17 15 23 34 53 30 1980 52 44 39 25 18 15 14 14 17 30 36 42 29 1981 49 41 29 22 18 16 16 12 17 25 30 31 26 1982 39 34 32 18 19 14 13 14 15 26 46 58 27 1983 63 35 32 35 17 12 11 14 17 22 24 44 27 1984 50 49 38 20 18 12 11 14 15 24 39 48 28 1985 53 26 29 19 11 9 14 16 15 24 30 46 24 1986 *** 53 40 32 17 14 12 15 16 24 41 51 *** 1987 36 38 36 29 20 10 24 16 23 34 29 36 28 1988 42 51 35 27 12 15 15 15 14 22 26 34 26 1989 48 46 32 16 20 10 13 13 16 23 33 40 26 1990 60 44 27 20 13 13 17 14 17 23 29 45 27 1991 64 44 40 19 19 12 16 17 18 28 37 54 31 1992 56 33 31 27 29 16 13 24 17 24 29 62 30 1993 63 60 30 28 20 13 13 15 17 22 37 41 30 1994 46 32 31 21 19 14 18 14 17 35 40 37 27 1995 37 43 30 34 15 14 14 13 16 25 25 60 27 1996 63 52 47 27 26 16 13 13 17 24 31 34 30 1997 39 28 25 21 18 18 13 13 16 25 41 55 26 1998 56 46 35 23 17 14 15 15 22 24 29 39 28 1999 62 33 44 28 19 17 24 16 23 28 44 49 32 2000 43 40 20 15 14 13 15 16 17 29 42 62 27 MEAN 55 47 37 28 22 17 17 18 20 29 40 51 32 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 4 6 0 0 0 0 0 0 0 0 0 0 10 1962 0 1 0 0 0 0 0 0 0 0 5 2 8 1963 3 0 0 0 0 0 0 0 0 0 0 9 12 1964 *** 1 0 0 0 0 0 0 0 0 1 16 *** 1965 4 0 0 0 0 0 0 0 0 0 0 2 6 1966 0 0 0 0 0 0 0 0 0 0 0 1 1 1967 5 2 0 0 0 0 0 0 0 0 1 7 15 1968 7 4 0 0 0 0 0 0 0 0 0 0 11 1969 6 3 0 0 0 0 0 0 0 0 0 0 9 1970 0 0 0 0 0 0 0 0 0 0 0 6 6 1971 7 1 0 0 0 0 0 0 0 0 0 0 8 1972 6 11 0 0 0 0 0 *** 0 0 0 8 *** 1973 21 2 0 0 0 0 0 0 0 0 0 8 31 1974 *** 18 0 0 0 0 0 0 0 0 0 10 *** 1975 7 5 1 0 0 0 0 0 0 0 0 12 25 1976 1 7 0 0 0 0 0 0 0 0 2 0 10 1977 13 2 0 0 0 0 0 0 0 0 0 6 21 1978 7 1 0 0 0 0 0 0 0 0 0 0 8 1979 1 0 0 0 0 0 0 0 0 0 2 0 3 1980 1 4 0 0 0 0 0 0 0 0 0 0 5 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 2 1 0 0 0 0 0 0 0 0 0 9 12 1983 11 1 0 0 0 0 0 0 0 0 0 9 21 1984 5 11 0 0 0 0 0 0 0 0 0 7 23 1985 7 0 0 0 0 0 0 0 0 0 0 0 7 1986 *** 0 0 0 0 0 0 0 0 0 0 6 *** 1987 0 0 0 0 0 0 0 0 0 0 0 1 1 1988 3 0 0 0 0 0 0 0 0 0 0 2 5 1989 9 10 0 0 0 0 0 0 0 0 0 0 19 1990 2 0 0 0 0 0 0 0 0 0 0 1 3 1991 0 3 0 0 0 0 0 0 0 0 0 1 4 1992 5 1 0 0 0 0 0 0 0 0 0 1 7 1993 0 0 0 0 0 0 0 0 0 0 0 1 1 1994 2 0 0 0 0 0 0 0 0 0 0 6 8 1995 1 0 0 0 0 0 0 0 0 0 0 0 1 1996 3 0 0 0 0 0 0 0 0 0 0 0 3 1997 0 5 0 0 0 0 0 0 0 0 0 0 5 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 3 0 0 0 0 0 0 0 0 0 0 0 3 2000 3 0 0 0 0 0 0 0 0 0 0 0 3 MEAN 4 3 0 0 0 0 0 0 0 0 0 3 10 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 0 0 0 0 6 22 30 21 13 0 0 0 92 1962 0 0 0 0 6 21 31 19 3 0 0 0 80 1963 0 0 0 2 3 24 28 23 1 0 0 0 81 1964 *** 0 0 2 6 26 31 31 11 0 0 0 *** 1965 0 0 0 1 13 28 31 22 4 0 0 0 99 1966 0 0 0 2 9 28 31 27 14 0 0 0 111 1967 0 0 0 1 10 16 31 22 11 0 0 0 91 1968 0 0 0 0 4 24 25 21 4 0 0 0 78 1969 0 0 0 0 6 28 29 22 0 0 0 0 85 1970 0 0 0 0 13 23 29 30 9 0 0 0 104 1971 0 0 0 0 15 28 29 30 11 0 0 0 113 1972 0 0 0 0 3 26 29 *** 3 0 0 0 *** 1973 0 0 0 1 2 26 31 18 7 0 0 0 85 1974 *** 0 0 0 3 20 29 15 1 0 0 0 *** 1975 0 0 0 0 1 23 30 22 1 0 0 0 77 1976 0 0 0 0 1 14 31 25 15 0 0 0 86 1977 0 0 0 2 8 29 31 22 8 0 0 0 100 1978 0 0 0 0 9 19 28 25 5 0 0 0 86 1979 0 0 0 4 1 27 31 16 4 0 0 0 83 1980 0 0 0 0 8 24 31 28 5 1 0 0 97 1981 0 0 0 0 4 14 30 26 8 0 0 0 82 1982 0 0 0 0 10 23 23 24 4 0 0 0 84 1983 0 0 0 0 15 27 31 30 13 0 0 0 116 1984 0 0 0 1 4 22 31 31 8 0 0 0 97 1985 0 0 0 0 0 26 30 2 5 0 0 0 63 1986 *** 0 0 0 10 27 29 20 2 0 0 0 *** 1987 0 0 0 5 12 29 30 31 10 1 0 0 118 1988 0 0 0 2 7 30 31 27 14 0 0 0 111 1989 0 0 0 1 8 28 31 29 12 0 0 0 109 1990 0 0 0 2 12 26 31 31 15 0 0 0 117 1991 0 0 0 1 7 25 30 27 11 0 0 0 101 1992 0 0 0 1 5 28 31 20 3 0 0 0 88 1993 0 0 0 0 13 24 31 28 13 0 0 0 109 1994 0 0 0 4 10 26 31 31 4 0 0 0 106 1995 0 0 0 0 5 22 30 31 13 0 0 0 101 1996 0 0 0 0 12 28 31 30 18 1 0 0 120 1997 0 0 0 0 12 29 31 26 9 4 0 0 111 1998 0 0 0 2 11 30 31 31 12 1 0 0 118 1999 0 0 0 0 12 30 30 30 13 1 0 0 116 2000 0 0 0 3 15 23 29 30 19 0 0 0 119 MEAN 0 0 0 1 8 25 30 25 8 0 0 0 97 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 0 0 0 0 0 0 0 0 0 0 0 0 0 1962 0 0 0 0 0 0 0 0 0 0 0 0 0 1963 0 0 0 0 0 0 0 0 0 0 0 0 0 1964 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1965 0 0 0 0 0 0 0 0 0 0 0 0 0 1966 0 0 0 0 0 0 0 0 0 0 0 0 0 1967 0 0 0 0 0 0 0 0 0 0 0 0 0 1968 0 0 0 0 0 0 0 0 0 0 0 0 0 1969 0 0 0 0 0 0 0 0 0 0 0 0 0 1970 0 0 0 0 0 0 0 0 0 0 0 0 0 1971 0 0 0 0 0 0 0 0 0 0 0 0 0 1972 0 1 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 *** 1975 0 0 0 0 0 0 0 0 0 0 0 0 0 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 *** *** *** *** *** 0 *** 0 0 0 0 0 *** 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 0 0 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 0 0 0 0 0 0 0 0 0 0 0 0 0 1984 0 0 0 0 0 0 0 0 0 0 0 0 0 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 *** 0 0 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 21 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 0 0 0 6 29 29 31 30 30 20 0 0 175 1962 0 0 4 4 24 29 29 31 21 17 0 0 159 1963 0 0 0 12 20 30 31 31 29 20 0 0 173 1964 *** 0 3 10 30 30 31 31 30 12 0 0 *** 1965 0 0 2 9 29 30 31 31 30 24 3 0 189 1966 0 0 0 10 26 30 31 31 29 7 0 0 164 1967 0 0 0 7 22 29 31 31 28 11 1 0 160 1968 0 0 2 9 26 30 31 31 29 20 0 0 178 1969 0 0 4 9 29 30 31 31 30 20 0 0 184 1970 0 0 1 17 28 30 31 31 24 18 2 0 182 1971 0 0 6 8 31 30 31 31 25 10 2 0 174 1972 0 0 0 11 15 30 31 *** 30 29 1 0 *** 1973 0 0 1 14 31 30 31 31 30 26 0 0 194 1974 *** 0 0 10 16 30 31 31 30 5 2 0 *** 1975 0 0 0 10 29 30 31 31 30 11 0 0 172 1976 0 0 0 4 26 30 31 31 30 10 0 0 162 1977 *** *** *** *** *** 30 *** 31 30 17 0 0 *** 1978 0 0 0 19 26 29 31 31 30 18 0 0 184 1979 0 0 0 23 21 30 31 31 26 22 2 0 186 1980 0 0 0 18 30 29 31 31 30 9 0 0 178 1981 *** 0 3 14 28 30 31 31 26 7 0 0 *** 1982 0 0 0 17 30 30 31 31 30 12 0 0 181 1983 0 0 0 6 28 30 31 31 30 8 0 0 164 1984 0 0 0 11 21 30 31 31 29 9 0 0 162 1985 0 0 0 12 28 30 31 31 30 9 0 0 171 1986 *** 0 0 3 26 30 31 30 29 17 0 0 *** 1987 0 0 0 14 26 30 31 31 30 8 0 0 170 1988 0 0 1 11 29 30 31 31 26 14 0 0 173 1989 0 0 0 10 21 30 31 31 25 17 0 0 165 1990 0 0 0 9 28 30 31 31 30 10 2 0 171 1991 0 0 0 12 19 30 30 31 23 3 0 0 148 1992 0 0 0 5 13 30 31 29 25 8 0 0 141 1993 0 0 0 6 22 30 31 31 30 3 0 0 153 1994 0 0 0 10 25 30 31 31 19 2 0 0 148 1995 0 0 0 3 23 30 31 31 27 10 0 0 155 1996 0 0 0 8 24 30 31 31 29 9 0 0 162 1997 0 0 0 5 21 30 31 31 29 14 0 0 161 1998 0 0 0 13 26 30 31 31 29 12 0 0 172 1999 0 0 0 8 28 30 31 31 27 20 0 0 175 2000 0 0 1 22 31 28 31 31 30 9 0 0 183 MEAN 0 0 1 10 25 30 31 31 28 13 0 0 169 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 0 0 0 0 2 8 22 2 6 0 0 0 40 1962 0 0 0 0 0 3 12 4 2 0 0 0 21 1963 0 0 0 0 0 14 25 12 7 0 0 0 58 1964 *** 0 0 0 0 13 28 29 0 0 0 0 *** 1965 0 0 0 0 5 12 18 19 3 0 0 0 57 1966 0 0 0 0 0 12 12 14 4 0 0 0 42 1967 0 0 0 0 1 6 18 12 5 0 0 0 42 1968 0 0 0 0 0 2 11 16 9 0 0 0 38 1969 0 0 0 0 2 11 17 1 0 0 0 0 31 1970 0 0 0 0 9 20 20 23 3 0 0 0 75 1971 0 0 0 0 2 17 16 16 1 0 0 0 52 1972 0 0 0 0 0 10 13 *** 2 0 0 0 *** 1973 0 0 0 0 0 21 26 4 0 0 0 0 51 1974 *** 0 0 0 0 8 16 4 0 0 0 0 *** 1975 0 0 0 0 0 15 29 13 0 0 0 0 57 1976 0 0 0 0 0 15 31 11 0 0 0 0 57 1977 *** *** *** *** *** 23 *** 10 0 0 0 0 *** 1978 0 0 0 0 0 9 14 7 0 0 0 0 30 1979 0 0 0 0 0 7 21 0 3 0 0 0 31 1980 0 0 0 0 2 16 24 16 0 0 0 0 58 1981 *** 0 0 0 2 2 17 11 2 0 0 0 *** 1982 0 0 0 0 1 19 19 10 0 0 0 0 49 1983 0 0 0 0 0 16 27 19 5 0 0 0 67 1984 0 0 0 0 1 11 14 28 5 0 0 0 59 1985 0 0 0 0 0 25 30 0 0 0 0 0 55 1986 *** 0 0 0 0 2 10 1 0 0 0 0 *** 1987 0 0 0 0 0 6 12 7 2 0 0 0 27 1988 0 0 0 0 1 9 19 11 3 0 0 0 43 1989 0 0 0 0 3 19 16 7 1 0 0 0 46 1990 0 0 0 0 2 18 15 18 4 0 0 0 57 1991 0 0 0 0 0 7 14 6 3 0 0 0 30 1992 0 0 0 0 0 10 17 2 0 0 0 0 29 1993 0 0 0 0 0 11 10 4 0 0 0 0 25 1994 0 0 0 0 0 11 22 14 0 0 0 0 47 1995 0 0 0 0 0 5 27 20 1 0 0 0 53 1996 0 0 0 0 1 7 5 9 11 0 0 0 33 1997 0 0 0 0 0 10 27 16 3 0 0 0 56 1998 0 0 0 0 1 4 17 13 3 0 0 0 38 1999 0 0 0 0 2 14 11 5 3 0 0 0 35 2000 0 0 0 0 5 14 11 10 1 0 0 0 41 MEAN 0 0 0 0 1 12 18 11 2 0 0 0 44 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 0 0 0 0 0 0 2 0 0 0 0 0 2 1962 0 0 0 0 0 0 0 0 0 0 0 0 0 1963 0 0 0 0 0 0 2 0 0 0 0 0 2 1964 *** 0 0 0 0 0 5 3 0 0 0 0 *** 1965 0 0 0 0 0 0 2 0 0 0 0 0 2 1966 0 0 0 0 0 1 0 0 0 0 0 0 1 1967 0 0 0 0 0 0 3 0 0 0 0 0 3 1968 0 0 0 0 0 0 2 0 0 0 0 0 2 1969 0 0 0 0 0 0 4 0 0 0 0 0 4 1970 0 0 0 0 0 2 2 0 0 0 0 0 4 1971 0 0 0 0 0 0 2 0 0 0 0 0 2 1972 0 0 0 0 0 1 1 *** 0 0 0 0 *** 1973 0 0 0 0 0 2 1 0 0 0 0 0 3 1974 *** 0 0 0 0 1 2 0 0 0 0 0 *** 1975 0 0 0 0 0 0 1 0 0 0 0 0 1 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 *** *** *** *** *** 0 *** 1 0 0 0 0 *** 1978 0 0 0 0 0 0 2 0 0 0 0 0 2 1979 0 0 0 0 0 0 2 0 0 0 0 0 2 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 *** 0 0 0 0 0 1 0 0 0 0 0 *** 1982 0 0 0 0 0 1 1 3 0 0 0 0 5 1983 0 0 0 0 0 0 6 1 0 0 0 0 7 1984 0 0 0 0 0 0 0 2 0 0 0 0 2 1985 0 0 0 0 0 0 1 0 0 0 0 0 1 1986 *** 0 0 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 2 0 0 0 0 0 2 1990 0 0 0 0 0 0 0 1 0 0 0 0 1 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 4 0 0 0 0 0 4 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 2 0 0 0 0 0 2 1998 0 0 0 0 0 0 4 0 0 0 0 0 4 1999 0 0 0 0 0 1 1 0 0 0 0 0 2 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 1 0 0 0 0 0 1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 24 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 17 11 2 0 0 0 0 0 0 1 5 14 50 10 31 3 6 1962 18 9 0 0 0 0 0 0 0 0 14 12 53 11 17 2 26 1963 20 5 3 0 0 0 0 0 0 0 1 23 52 11 20 3 10 1964 *** 12 0 0 0 0 0 0 0 0 2 27 *** 11 29 2 29 1965 18 15 4 0 0 0 0 0 0 0 1 16 54 11 26 3 18 1966 13 2 0 0 0 0 0 0 0 0 10 16 41 11 14 2 8 1967 22 14 4 0 0 0 0 0 0 0 1 16 57 11 30 3 4 1968 15 15 1 0 0 0 0 0 0 0 0 10 41 12 14 3 25 1969 20 16 1 0 0 0 0 0 0 0 12 7 56 11 14 3 25 1970 15 3 0 0 0 0 0 0 0 0 0 19 37 12 2 2 4 1971 24 11 0 0 0 0 0 0 0 0 0 10 45 12 6 2 20 1972 26 23 0 0 0 0 0 *** 0 0 1 18 *** 11 26 2 28 1973 30 8 2 0 0 0 0 0 0 0 0 22 62 12 6 3 11 1974 *** 28 0 0 0 0 0 0 0 0 3 28 *** 11 28 2 28 1975 22 12 4 0 0 0 0 0 0 0 4 22 64 11 6 3 9 1976 3 17 11 0 0 0 0 0 0 0 11 17 59 11 14 3 17 1977 30 20 1 0 0 0 0 0 0 0 0 7 58 12 13 3 1 1978 21 10 0 0 0 0 0 0 0 0 3 4 38 11 21 2 15 1979 11 1 2 0 0 0 0 0 0 0 12 10 36 11 17 3 5 1980 17 7 0 0 0 0 0 0 0 0 0 8 32 12 15 2 23 1981 15 6 0 0 0 0 0 0 0 0 2 4 27 11 24 2 24 1982 20 16 1 0 0 0 0 0 0 0 7 23 67 11 16 3 8 1983 22 20 1 0 0 0 0 0 0 0 0 17 60 12 15 3 12 1984 21 21 0 0 0 0 0 0 0 0 0 22 64 12 10 2 28 1985 26 7 13 0 0 0 0 0 0 0 0 12 58 12 14 3 15 1986 *** 1 3 0 0 0 0 0 0 0 1 12 *** 11 25 3 18 1987 19 5 0 0 0 0 0 0 0 0 1 9 34 11 30 2 14 1988 15 3 0 0 0 0 0 0 0 0 2 4 24 11 16 2 8 1989 25 18 0 0 0 0 0 0 0 0 0 10 53 12 8 2 27 1990 13 5 3 0 0 0 0 0 0 0 0 5 26 12 27 3 22 1991 10 11 0 0 0 0 0 0 0 0 0 10 31 12 18 2 25 1992 18 12 7 0 0 0 0 0 0 0 4 3 44 11 27 3 13 1993 17 3 0 0 0 0 0 0 0 0 4 8 32 11 16 2 19 1994 11 8 0 0 0 0 0 0 0 0 0 17 36 12 6 2 21 1995 14 2 0 0 0 0 0 0 0 0 3 13 32 11 28 2 27 1996 17 1 0 0 0 0 0 0 0 0 3 9 30 11 13 2 4 1997 6 13 2 0 0 0 0 0 0 0 0 2 23 12 24 3 10 1998 12 7 0 0 0 0 0 0 0 0 0 0 19 1 1 2 25 1999 8 0 1 0 0 0 0 0 0 0 0 2 11 12 1 3 19 2000 14 4 1 0 0 0 0 0 0 0 0 3 22 12 29 3 16 MEAN 17 10 2 0 0 0 0 0 0 0 3 12 44 10 31 3 25 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 5.9 7.9 13.2 17.3 28.1 31.0 33.8 30.0 28.5 20.0 13.2 9.7 19.9 1962 6.9 11.6 16.7 19.3 26.4 30.1 33.2 29.8 24.7 20.5 10.9 8.1 19.8 1963 9.4 12.5 14.1 22.3 25.4 32.3 34.6 31.6 27.6 22.4 13.6 6.3 21.0 1964 ****** 9.4 16.2 20.1 28.3 32.3 34.5 33.4 27.0 18.2 13.4 3.6 ****** 1965 5.8 9.6 14.5 20.0 28.2 32.6 34.3 31.5 27.6 23.6 16.1 9.0 21.0 1966 10.6 12.5 15.1 20.3 26.8 33.2 33.1 32.6 29.1 20.1 11.9 8.4 21.1 1967 6.5 7.3 13.9 18.9 26.3 30.4 34.1 31.6 28.7 20.6 14.6 7.5 20.0 1968 7.2 7.8 14.8 19.6 25.0 31.7 32.0 31.9 28.0 21.5 14.3 8.9 20.2 1969 4.1 6.4 17.8 20.7 26.8 32.8 33.8 30.6 26.5 22.7 10.6 9.6 20.2 1970 6.4 11.5 14.3 22.8 28.7 33.0 33.9 34.9 29.0 20.8 16.0 7.9 21.6 1971 5.9 9.6 15.8 20.1 29.8 34.1 33.9 33.3 27.6 19.4 14.6 8.8 21.1 1972 2.9 3.1 11.6 20.8 23.7 32.8 33.7 ****** 30.0 24.4 13.6 4.3 ****** 1973 2.2 10.7 15.9 21.1 27.7 34.4 35.1 31.3 29.2 25.8 16.4 4.0 21.1 1974 ****** 2.9 11.1 20.2 23.4 32.1 34.2 31.2 29.1 18.0 13.2 5.7 ****** 1975 6.1 8.7 10.2 18.8 28.2 33.6 36.8 32.7 28.0 19.2 10.9 4.7 19.8 1976 8.5 5.8 8.1 17.7 27.1 33.1 35.0 32.2 29.2 21.7 10.2 7.0 19.6 1977 1.9 7.6 16.2 21.1 27.1 34.5 35.1 33.9 30.1 21.5 12.7 8.8 20.9 1978 6.2 9.6 14.8 23.6 27.2 31.5 32.8 32.2 28.6 22.4 11.5 10.1 20.9 1979 7.6 10.3 13.6 24.1 24.2 31.7 34.5 30.6 27.9 23.2 12.1 7.8 20.6 1980 6.4 8.9 14.3 23.7 28.9 33.6 34.1 33.0 28.1 21.1 16.4 9.9 21.5 1981 7.6 10.2 16.1 21.7 27.4 30.4 33.4 31.8 26.9 20.0 16.0 9.9 20.9 1982 7.2 7.3 13.0 22.8 28.1 33.2 33.6 32.0 27.8 20.8 10.4 5.4 20.1 1983 3.9 8.2 11.6 18.6 28.4 33.4 35.7 34.0 28.6 20.2 17.3 8.4 20.7 1984 6.3 5.8 15.1 21.8 25.5 32.4 33.8 34.4 28.4 19.1 14.9 4.2 20.1 1985 6.5 10.8 11.6 21.1 25.1 33.6 34.7 30.2 28.6 20.1 15.3 9.8 20.6 1986 ****** 9.4 10.4 20.3 27.7 31.6 33.3 30.3 27.0 22.8 12.9 6.8 ****** 1987 8.6 10.9 14.9 21.6 28.5 32.4 32.9 33.1 28.0 17.4 14.8 9.1 21.0 1988 6.9 8.7 15.0 21.2 28.4 33.3 34.8 32.5 28.5 21.8 15.4 10.3 21.4 1989 3.8 5.1 14.9 22.3 26.8 34.2 35.3 32.5 27.9 22.8 15.3 10.2 20.9 1990 5.2 8.2 14.1 21.2 29.7 34.5 34.0 33.9 29.9 21.3 15.9 8.6 21.4 1991 6.6 7.4 13.7 22.6 26.0 31.8 34.0 32.3 27.6 20.9 14.3 8.6 20.5 1992 4.4 8.4 10.6 20.0 23.1 32.2 34.8 29.9 26.4 20.0 15.5 8.6 19.5 1993 4.6 8.9 12.7 21.5 26.9 32.2 33.4 31.8 28.7 18.9 12.5 8.5 20.0 1994 8.4 9.1 16.0 22.3 27.6 32.7 34.9 34.1 25.0 20.3 16.5 6.8 21.2 1995 9.0 10.1 14.9 20.5 26.6 31.7 36.4 34.5 28.1 20.0 15.3 6.4 21.1 1996 4.7 9.6 12.7 20.8 27.5 32.3 33.0 32.6 30.5 20.5 12.1 9.9 20.5 1997 8.7 8.3 13.0 21.4 27.0 33.5 36.7 33.6 28.7 24.0 13.5 9.2 21.5 1998 6.2 8.4 14.9 22.9 27.1 32.3 34.8 33.4 29.0 22.0 17.2 11.4 21.6 1999 6.9 13.1 13.8 21.5 28.3 33.9 32.9 33.0 28.7 23.0 13.4 8.8 21.5 2000 7.2 9.6 15.0 25.5 30.7 32.0 33.1 32.3 29.9 20.9 12.3 9.2 21.5 MEAN 6.3 8.8 13.9 21.1 27.1 32.6 34.2 32.3 28.2 21.1 13.9 8.0 20.6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 -1.0 -3.7 -2.0 6.1 8.3 9.3 9.8 9.7 8.9 3.9 1.9 1.5 4.4 1962 -0.3 0.1 4.1 5.8 10.8 12.4 14.3 13.9 10.9 6.6 0.3 0.4 6.6 1963 0.7 3.3 3.9 9.4 10.7 12.5 13.1 13.3 10.5 9.3 3.6 -2.3 7.3 1964 ****** 0.9 6.7 6.7 15.2 16.3 16.4 18.0 12.0 6.1 5.2 -2.4 ****** 1965 1.6 -0.2 2.1 3.4 8.9 12.0 12.5 15.0 13.7 12.5 8.7 1.5 7.6 1966 2.5 4.9 3.1 4.5 5.4 5.9 8.3 8.1 7.2 6.1 -2.0 -3.6 4.2 1967 -4.5 -2.7 -4.1 2.1 3.2 0.5 5.9 4.1 3.8 1.0 -0.1 -5.9 0.3 1968 -6.0 -2.3 -1.3 0.8 1.3 4.6 5.0 3.7 2.2 0.8 6.3 0.8 1.3 1969 -2.1 -1.0 1.6 0.2 1.5 2.6 5.2 6.5 5.2 3.9 -0.5 -1.4 1.8 1970 -0.9 -0.8 0.7 2.6 2.9 3.4 5.4 5.9 2.1 1.4 0.2 -1.8 1.7 1971 -3.9 -2.8 0.5 1.6 2.5 4.0 4.8 6.7 4.6 1.6 3.6 -0.7 1.9 1972 -1.9 -2.2 1.7 1.9 3.7 3.7 4.4 ****** 5.6 2.1 -0.7 -2.2 ****** 1973 -5.1 -0.6 -0.1 1.6 2.3 8.0 10.7 6.6 3.4 3.6 4.2 -3.7 2.6 1974 ****** -2.8 1.3 3.0 4.1 6.0 6.7 5.8 3.5 -2.6 -4.6 -5.8 ****** 1975 -4.0 -5.9 -3.6 -3.1 2.1 1.8 -1.8 -1.2 -2.7 -4.5 -4.2 -4.1 -2.6 1976 -5.4 -5.2 -2.8 -3.7 -0.1 2.8 1.3 -6.6 -9.9 ****** -1.0 -1.5 ****** 1977 -5.1 -5.5 -8.3 2.2 5.1 17.5 5.4 7.3 1.6 0.8 0.3 -2.3 1.6 1978 -4.8 0.2 1.4 -0.7 2.1 1.3 3.8 2.0 2.7 4.1 0.4 -0.5 1.0 1979 -1.9 0.4 0.9 -0.7 3.6 5.3 5.5 4.2 0.3 1.3 -1.7 -0.8 1.4 1980 -2.7 -1.3 1.3 2.7 5.5 5.0 4.1 4.3 2.9 3.6 2.2 -1.9 2.1 1981 -2.4 -1.9 -1.4 1.2 4.0 3.6 5.3 0.6 1.0 -0.0 -0.8 -4.2 0.4 1982 -4.2 -5.5 -1.2 -0.4 3.8 3.8 3.8 3.0 1.2 0.3 -0.5 -1.9 0.2 1983 -2.8 -6.1 -4.3 1.7 2.9 1.8 2.5 3.4 2.5 -0.9 -1.8 -3.2 -0.4 1984 -3.2 -3.8 0.4 -2.5 0.0 1.2 2.4 4.9 3.0 -1.3 0.9 -5.2 -0.3 1985 -2.8 -6.8 -3.9 -1.2 -4.1 0.2 6.3 5.5 2.9 1.1 0.6 -0.9 -0.2 1986 ****** 0.3 -2.4 3.5 2.4 4.3 3.3 3.1 -0.1 2.5 -0.4 -2.0 ****** 1987 -4.9 -2.8 -0.1 2.0 4.7 -0.3 10.8 6.7 6.2 1.2 -3.8 -5.2 1.2 1988 -5.5 -1.4 -0.5 2.3 -0.2 5.1 8.0 4.7 0.6 -0.4 -3.9 -4.8 0.3 1989 -6.1 -5.4 -1.1 -3.0 3.0 1.2 6.1 3.0 0.6 1.1 -0.4 -2.6 -0.3 1990 -2.0 -3.4 -3.6 -0.6 2.0 3.9 7.9 5.7 2.9 0.0 -1.6 -3.1 0.7 1991 0.3 -4.4 1.9 -0.2 2.7 2.7 7.0 6.3 3.5 3.0 -0.0 -0.6 1.8 1992 -3.7 -6.7 -4.5 1.7 5.2 6.1 5.9 8.3 1.1 -0.5 -1.8 0.7 1.0 1993 -1.9 1.8 -3.1 1.3 3.3 3.6 5.0 5.3 2.8 -2.5 -1.3 -2.8 0.9 1994 -2.5 -6.3 -0.5 0.1 4.0 6.0 10.0 5.2 0.3 5.0 2.2 -6.1 1.4 1995 -3.8 -1.7 -2.0 4.0 1.0 5.1 7.4 5.3 0.8 0.4 -4.0 -1.3 0.9 1996 -1.8 0.7 2.4 2.1 7.8 5.9 5.0 3.3 3.8 -0.7 -3.9 -4.9 1.6 1997 -4.5 -8.4 -5.5 -1.3 2.3 8.4 6.4 3.8 1.6 2.6 0.9 0.9 0.6 1998 -1.7 -2.2 -0.3 1.4 2.6 4.7 7.9 7.0 6.2 1.4 -0.7 -1.3 2.1 1999 -0.8 -2.7 1.5 3.5 4.7 7.7 11.5 6.2 7.3 4.3 1.0 -1.2 3.6 2000 -4.7 -3.0 -6.4 -0.5 3.1 2.8 5.5 5.1 4.3 3.2 0.4 2.2 1.0 MEAN -2.8 -2.4 -0.7 1.5 3.9 5.3 6.7 5.7 3.5 2.1 0.1 -2.1 1.7 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 4.04 3.27 3.77 6.60 7.76 8.47 8.55 8.56 8.00 5.83 5.07 4.99 6.24 1962 4.29 4.45 5.73 6.65 9.12 10.07 11.33 11.07 9.55 6.89 4.78 4.72 7.39 1963 4.63 5.59 5.85 8.19 8.98 10.06 10.86 10.84 9.12 8.26 5.59 3.98 7.66 1964 ****** 4.76 6.94 7.01 12.40 12.98 13.06 14.63 9.94 6.70 6.43 3.73 ****** 1965 4.93 4.38 5.00 5.65 8.12 9.70 10.03 11.96 10.94 10.25 8.13 4.92 7.83 1966 5.31 6.20 5.62 5.96 6.41 6.50 7.66 7.52 7.12 6.63 3.76 3.35 6.00 1967 3.22 3.68 3.24 5.12 5.43 4.51 6.54 5.72 5.59 4.62 4.41 2.98 4.59 1968 2.92 3.77 4.18 4.63 5.08 5.94 6.29 5.55 5.10 4.60 6.72 4.78 4.96 1969 3.83 4.03 4.82 4.32 4.87 5.12 6.19 6.83 6.19 5.66 4.40 3.98 5.02 1970 4.04 4.03 4.45 5.16 5.29 5.46 6.29 6.41 4.96 4.80 4.26 3.86 4.92 1971 3.34 3.55 4.52 4.84 5.08 5.60 5.97 6.83 5.93 4.77 5.60 4.14 5.01 1972 3.82 3.70 4.85 4.96 5.66 5.55 5.78 ****** 6.24 4.90 4.20 3.75 ****** 1973 3.05 4.16 4.28 4.74 4.96 7.82 9.07 6.76 5.59 5.81 5.82 3.32 5.45 1974 ****** 3.54 4.70 5.36 5.78 6.59 7.06 7.11 5.54 3.59 3.05 2.81 ****** 1975 3.26 2.84 3.25 4.38 5.39 4.86 3.89 4.12 3.63 3.07 3.16 3.15 3.75 1976 2.94 2.94 3.48 3.40 4.91 5.60 5.29 2.76 2.45 ****** 3.99 3.79 ****** 1977 2.95 2.85 2.33 5.57 7.17 16.35 6.71 8.22 5.01 4.66 4.38 3.69 5.82 1978 3.02 4.39 4.72 4.31 5.12 5.28 5.84 4.97 5.25 5.89 4.39 4.19 4.78 1979 3.75 4.44 4.63 4.16 5.73 6.28 6.41 5.75 4.50 4.69 3.86 4.03 4.85 1980 3.47 3.90 4.69 5.46 6.54 6.17 5.71 5.80 5.28 5.59 4.95 3.71 5.10 1981 3.55 3.71 3.86 4.78 5.79 5.58 6.37 4.41 4.59 4.32 4.09 3.15 4.52 1982 3.14 2.85 3.91 4.17 5.75 5.58 5.58 5.33 4.64 4.45 4.14 3.75 4.44 1983 3.54 2.75 3.20 4.94 5.25 4.91 5.15 5.52 5.16 4.00 3.68 3.39 4.29 1984 3.41 3.23 4.76 3.66 4.45 4.72 5.12 6.09 5.38 3.86 4.60 2.92 4.35 1985 3.51 2.68 3.32 3.96 3.18 4.46 6.58 6.31 5.36 4.68 4.47 3.97 4.37 1986 ****** 4.33 3.72 5.79 5.14 5.81 5.49 5.46 4.31 5.29 4.21 3.94 ****** 1987 2.95 3.52 4.42 5.01 5.99 4.33 9.10 6.81 6.62 4.91 3.33 3.03 5.00 1988 2.89 3.95 4.27 5.24 4.34 6.25 7.59 6.09 4.66 4.25 3.43 3.10 4.67 1989 2.80 3.04 4.07 3.46 5.39 4.72 6.60 5.34 4.59 4.61 4.28 3.61 4.38 1990 3.75 3.34 3.37 4.16 4.91 5.67 7.39 6.42 5.26 4.31 3.84 3.38 4.65 1991 4.39 3.26 5.16 4.28 5.28 5.33 7.02 6.95 5.53 5.29 4.27 4.13 5.07 1992 3.30 2.68 3.29 4.94 6.26 6.65 6.54 8.09 4.80 4.19 3.93 4.65 4.94 1993 3.69 4.99 3.71 4.98 5.47 5.61 6.13 6.27 5.24 3.69 4.08 3.45 4.78 1994 3.63 2.74 4.29 4.48 5.73 6.67 8.53 6.29 4.42 6.31 5.18 2.90 5.10 1995 3.26 3.90 3.89 6.09 4.63 6.17 7.29 6.37 4.65 4.57 3.25 3.95 4.84 1996 3.78 4.51 5.11 5.10 7.39 6.60 6.12 5.55 5.71 4.18 3.22 3.04 5.03 1997 3.10 2.34 3.01 4.27 5.06 7.65 6.86 5.74 4.86 5.16 4.66 4.57 4.77 1998 3.79 3.69 4.31 4.79 5.22 6.21 7.43 6.99 6.70 4.79 4.05 3.88 5.15 1999 4.14 3.59 4.86 5.58 5.91 7.54 9.63 6.62 7.18 5.79 4.64 3.95 5.79 2000 3.16 3.44 2.70 4.27 5.38 5.41 6.28 6.29 5.76 5.42 4.44 5.00 4.80 MEAN 3.58 3.73 4.26 5.01 5.91 6.62 7.13 6.78 5.78 5.16 4.47 3.79 5.18 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 5.90 4.78 5.51 9.63 11.34 12.37 12.49 12.49 11.69 8.52 7.41 7.28 9.12 1962 6.26 6.50 8.36 9.71 13.29 14.67 16.50 16.11 13.89 10.06 6.97 6.88 10.77 1963 6.76 8.16 8.54 11.95 13.09 14.67 15.79 15.77 13.28 12.04 8.16 5.81 11.17 1964 ****** 6.95 10.12 10.23 17.98 18.84 18.97 21.17 14.47 9.78 9.37 5.44 ****** 1965 7.19 6.40 7.31 8.26 11.86 14.15 14.64 17.38 15.90 14.89 11.82 7.18 11.41 1966 7.75 9.04 8.20 8.72 9.38 9.53 11.21 11.01 10.41 9.69 5.50 4.90 8.78 1967 4.70 5.38 4.75 7.49 7.96 6.63 9.60 8.40 8.20 6.78 6.46 4.37 6.73 1968 4.27 5.50 6.11 6.78 7.43 8.72 9.21 8.15 7.49 6.74 9.80 6.97 7.26 1969 5.58 5.89 7.06 6.34 7.15 7.52 9.08 10.00 9.07 8.29 6.43 5.82 7.35 1970 5.90 5.90 6.51 7.56 7.76 8.02 9.22 9.42 7.29 7.03 6.25 5.64 7.21 1971 4.88 5.19 6.61 7.09 7.46 8.23 8.77 10.01 8.70 6.98 8.17 6.05 7.35 1972 5.57 5.40 7.09 7.27 8.29 8.16 8.50 ****** 9.15 7.19 6.15 5.48 ****** 1973 4.45 6.09 6.27 6.95 7.29 11.43 13.25 9.91 8.20 8.50 8.50 4.85 7.97 1974 ****** 5.17 6.87 7.84 8.46 9.66 10.35 10.40 8.12 5.26 4.47 4.11 ****** 1975 4.76 4.15 4.75 6.39 7.89 7.15 5.73 6.05 5.34 4.50 4.63 4.60 5.50 1976 4.29 4.30 5.09 4.98 7.18 8.21 7.76 4.07 3.61 ****** 5.84 5.54 ****** 1977 4.31 4.17 3.43 8.13 10.46 23.48 9.84 11.98 7.36 6.83 6.41 5.39 8.48 1978 4.41 6.41 6.91 6.32 7.50 7.75 8.57 7.30 7.70 8.62 6.41 6.11 7.00 1979 5.48 6.49 6.77 6.11 8.39 9.21 9.39 8.43 6.60 6.87 5.65 5.89 7.11 1980 5.07 5.69 6.85 7.99 9.57 9.05 8.39 8.51 7.75 8.18 7.24 5.42 7.48 1981 5.19 5.43 5.65 7.01 8.49 8.19 9.34 6.49 6.74 6.34 5.98 4.61 6.62 1982 4.59 4.17 5.72 6.12 8.42 8.20 8.19 7.83 6.81 6.52 6.05 5.47 6.51 1983 5.16 4.03 4.68 7.23 7.70 7.22 7.57 8.10 7.57 5.87 5.40 4.96 6.29 1984 4.98 4.72 6.96 5.37 6.53 6.94 7.52 8.94 7.88 5.66 6.72 4.27 6.37 1985 5.13 3.92 4.86 5.81 4.68 6.56 9.65 9.25 7.86 6.85 6.54 5.80 6.41 1986 ****** 6.32 5.43 8.46 7.54 8.52 8.07 8.01 6.33 7.73 6.15 5.75 ****** 1987 4.32 5.15 6.46 7.33 8.78 6.36 13.28 9.98 9.69 7.17 4.87 4.44 7.32 1988 4.23 5.77 6.24 7.68 6.37 9.17 11.11 8.93 6.83 6.23 5.02 4.54 6.84 1989 4.09 4.44 5.95 5.09 7.90 6.94 9.68 7.84 6.74 6.76 6.26 5.28 6.41 1990 5.47 4.88 4.94 6.10 7.21 8.32 10.82 9.42 7.72 6.33 5.63 4.94 6.82 1991 6.41 4.76 7.53 6.28 7.74 7.82 10.29 10.17 8.11 7.75 6.24 6.04 7.43 1992 4.82 3.92 4.81 7.23 9.15 9.74 9.59 11.80 7.05 6.14 5.76 6.79 7.23 1993 5.39 7.27 5.42 7.29 8.01 8.23 8.99 9.19 7.70 5.41 5.97 5.04 6.99 1994 5.30 4.01 6.27 6.57 8.40 9.77 12.48 9.22 6.49 9.22 7.56 4.24 7.46 1995 4.77 5.70 5.69 8.89 6.80 9.05 10.69 9.35 6.82 6.70 4.77 5.77 7.08 1996 5.52 6.59 7.46 7.47 10.80 9.68 8.98 8.14 8.38 6.13 4.71 4.45 7.36 1997 4.54 3.43 4.40 6.26 7.42 11.20 10.06 8.42 7.14 7.56 6.81 6.67 6.99 1998 5.53 5.39 6.31 7.02 7.65 9.10 10.88 10.24 9.81 7.03 5.94 5.67 7.55 1999 6.05 5.25 7.10 8.16 8.66 11.04 14.04 9.71 10.50 8.47 6.78 5.78 8.46 2000 4.61 5.04 3.96 6.27 7.90 7.95 9.21 9.22 8.45 7.94 6.50 7.29 7.03 MEAN 5.23 5.44 6.22 7.33 8.65 9.69 10.44 9.92 8.47 7.55 6.53 5.54 7.59 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 3.85 6.72 10.64 11.71 28.14 34.64 41.97 31.43 29.26 16.96 9.20 5.81 19.20 1962 4.30 8.14 11.85 13.57 22.61 29.35 35.73 27.35 19.95 16.12 7.67 4.72 16.78 1963 6.30 7.76 8.91 16.20 20.55 35.47 41.33 32.60 26.37 16.88 8.68 4.74 18.81 1964 ****** 5.71 9.61 14.99 22.35 30.97 37.63 32.07 23.43 13.07 7.57 3.00 ****** 1965 2.49 6.57 10.61 16.58 28.65 36.39 40.87 30.42 22.59 16.05 8.12 5.57 18.74 1966 6.28 6.40 10.16 16.39 27.20 42.98 40.82 39.54 31.88 15.04 9.72 6.96 21.11 1967 5.84 5.51 12.25 15.99 28.02 38.94 46.19 40.40 34.19 19.41 11.66 7.01 22.12 1968 6.80 6.06 12.21 18.10 26.10 39.62 40.90 41.61 33.61 21.05 7.37 5.06 21.54 1969 3.04 4.44 14.86 19.52 30.42 44.55 45.83 35.49 27.78 21.47 7.75 6.84 21.83 1970 4.24 8.65 11.34 22.39 34.66 45.29 45.96 48.44 35.94 20.07 13.67 6.25 24.74 1971 5.22 7.94 13.23 18.13 36.45 47.30 45.85 43.07 31.02 17.73 9.47 6.17 23.47 1972 2.29 2.92 7.52 19.05 22.79 43.64 45.37 ****** 35.73 25.81 11.06 3.41 ****** 1973 3.33 8.08 13.13 19.69 31.73 45.49 45.26 37.69 33.89 25.86 11.05 3.63 23.24 1974 ****** 2.79 7.08 17.47 22.02 40.15 45.47 36.77 34.40 16.66 11.70 5.57 ****** 1975 5.04 7.93 8.22 16.49 32.26 46.63 58.10 45.04 34.17 19.82 9.15 4.16 23.92 1976 7.29 5.42 6.07 16.71 30.48 44.66 51.35 46.00 39.93 ****** 7.36 4.82 ****** 1977 2.87 7.21 16.84 19.34 27.76 33.44 48.72 42.41 36.97 21.06 9.14 6.66 22.70 1978 5.76 6.28 11.01 24.17 30.85 40.61 43.03 42.58 33.44 19.69 7.77 6.67 22.66 1979 5.46 6.72 10.06 25.95 23.42 39.33 47.40 37.03 32.89 23.25 9.90 5.12 22.21 1980 4.87 6.30 10.34 22.85 32.24 45.89 47.05 44.21 31.99 18.56 12.19 7.29 23.65 1981 5.81 7.80 14.05 20.95 30.45 37.11 44.32 42.28 30.89 18.18 13.32 8.19 22.78 1982 6.18 6.60 10.31 23.46 31.36 44.96 46.32 42.20 32.45 19.58 7.29 3.89 22.88 1983 3.38 7.60 9.61 15.57 32.43 46.50 53.13 47.00 33.63 19.36 15.05 7.16 24.20 1984 5.06 5.22 10.89 22.28 27.32 43.53 46.50 47.49 33.11 18.11 10.93 4.25 22.89 1985 5.28 9.85 10.43 20.84 29.55 47.53 47.67 35.17 33.05 18.51 11.72 6.94 23.04 1986 ****** 6.05 7.85 16.04 31.05 39.36 44.63 36.90 30.91 21.72 9.88 4.58 ****** 1987 7.52 8.64 11.29 20.87 31.91 43.82 38.67 42.44 29.93 14.51 13.21 7.73 22.55 1988 6.10 6.27 11.80 19.38 34.14 43.79 46.52 42.01 34.29 21.20 14.20 8.78 24.04 1989 4.19 4.79 11.76 23.34 29.86 49.19 49.54 43.20 33.63 22.83 11.98 7.88 24.35 1990 3.68 6.52 12.30 20.69 36.45 48.50 44.20 45.95 36.67 20.65 13.86 7.06 24.71 1991 3.64 6.21 8.90 22.89 27.76 41.16 44.78 40.26 31.90 18.04 11.19 5.98 21.89 1992 3.95 7.83 8.80 17.55 21.10 40.36 48.03 32.28 29.02 18.74 13.09 4.77 20.46 1993 3.47 4.58 10.07 19.58 28.98 42.20 44.04 39.67 33.78 17.73 9.82 6.59 21.71 1994 6.25 8.22 12.87 22.55 30.08 41.90 45.54 46.28 26.60 15.50 12.11 6.46 22.86 1995 7.28 7.25 12.24 16.43 29.18 39.79 52.56 47.66 33.31 18.66 14.32 4.14 23.57 1996 3.60 5.97 7.93 18.75 27.75 40.79 42.91 43.09 37.87 19.44 10.26 8.47 22.23 1997 7.34 8.53 11.48 20.79 30.26 42.19 53.95 46.14 34.37 23.85 9.44 5.38 24.48 1998 4.25 6.41 11.94 22.66 30.01 40.81 47.05 43.07 32.36 21.34 14.78 8.40 23.59 1999 4.24 10.61 9.69 18.76 31.77 43.90 38.20 42.48 31.14 21.36 9.32 5.99 22.29 2000 6.12 7.60 14.43 28.06 38.43 42.28 43.18 41.36 35.70 17.97 8.47 4.71 24.02 MEAN 4.93 6.75 10.86 19.42 29.21 41.63 45.41 40.54 32.10 19.28 10.61 5.92 22.22 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 65 47 39 53 32 28 25 31 32 38 49 59 42 1962 63 49 47 46 39 36 34 39 44 43 51 62 46 1963 57 56 54 46 43 32 30 35 38 46 53 59 46 1964 *** 59 56 46 46 39 36 42 41 47 61 69 *** 1965 76 54 48 36 32 30 29 38 46 53 65 61 47 1966 60 62 49 39 28 20 24 24 27 42 41 47 39 1967 50 53 32 37 25 17 20 19 22 30 40 42 32 1968 42 53 38 32 25 20 20 18 20 28 60 59 35 1969 66 62 37 28 22 16 19 24 28 33 49 50 36 1970 62 46 43 29 22 17 18 18 19 31 38 53 33 1971 53 46 41 33 19 16 17 20 25 34 53 56 34 1972 73 71 57 32 31 17 17 *** 24 25 41 64 *** 1973 63 50 37 30 21 20 23 23 21 27 47 58 35 1974 *** 67 54 34 32 22 20 24 22 28 32 45 *** 1975 51 38 40 30 23 14 10 14 16 24 40 55 30 1976 43 49 50 28 21 17 14 9 11 *** 49 56 *** 1977 61 44 24 34 30 39 18 23 18 31 45 50 35 1978 49 56 43 24 23 19 19 17 21 33 48 51 34 1979 54 54 44 23 32 22 18 20 20 26 41 57 34 1980 54 52 44 30 27 18 17 18 21 34 40 46 33 1981 52 45 34 30 24 19 18 15 20 29 34 40 30 1982 47 44 41 24 23 17 17 18 20 28 50 62 33 1983 64 41 37 38 22 15 14 16 21 26 29 47 31 1984 53 54 41 23 22 16 16 17 23 28 43 54 33 1985 54 34 39 26 17 14 19 24 22 32 41 50 31 1986 *** 57 44 38 22 20 17 20 19 29 44 56 *** 1987 42 42 40 33 24 14 28 21 27 38 31 39 32 1988 44 55 40 32 19 19 21 20 19 25 29 37 30 1989 53 51 37 21 24 14 18 18 20 26 37 44 30 1990 62 48 32 26 19 16 21 19 19 26 32 47 31 1991 67 46 49 25 26 18 21 22 24 33 40 55 36 1992 59 37 39 34 37 22 19 29 22 28 33 61 35 1993 65 64 39 32 25 19 19 21 21 26 42 47 35 1994 49 36 37 26 24 21 24 18 22 40 41 42 32 1995 43 48 36 40 21 21 19 18 20 30 28 61 32 1996 66 57 54 32 32 22 19 18 21 27 34 38 35 1997 43 32 32 25 23 23 18 17 20 28 46 60 31 1998 60 52 41 28 24 20 21 21 26 28 32 43 33 1999 61 37 49 33 24 22 30 20 28 31 46 52 36 2000 46 46 25 20 19 18 19 20 22 35 47 64 32 MEAN 56 50 42 32 26 21 21 22 24 32 43 52 35 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 82 65 56 71 42 37 35 45 44 50 62 73 55 1962 78 64 63 61 51 47 45 50 56 56 66 76 59 1963 71 71 67 59 55 44 43 48 51 60 67 75 59 1964 *** 77 71 62 54 47 45 56 52 56 79 83 *** 1965 84 69 66 51 41 41 41 48 62 69 83 76 61 1966 75 79 68 53 41 30 35 39 38 55 57 65 53 1967 64 68 48 52 35 26 30 29 29 43 54 58 45 1968 56 68 53 46 39 28 29 25 29 39 71 72 46 1969 77 74 50 38 32 24 29 37 43 46 62 65 48 1970 75 65 62 40 30 22 24 26 28 43 57 67 45 1971 64 63 60 51 25 21 21 27 37 49 75 71 47 1972 84 87 81 45 44 22 21 *** 38 37 57 76 *** 1973 85 70 53 39 30 26 28 31 30 38 58 66 46 1974 *** 74 73 45 42 33 30 36 36 44 46 57 *** 1975 64 52 53 42 36 20 18 25 27 39 61 69 42 1976 60 62 70 46 34 24 20 14 21 *** 68 69 *** 1977 70 65 44 51 45 50 25 34 28 49 63 68 49 1978 69 72 59 41 35 35 31 27 29 43 63 70 48 1979 73 73 61 37 48 36 28 30 33 40 57 71 49 1980 70 70 61 48 46 23 27 25 30 48 54 63 47 1981 68 62 50 47 36 25 22 21 28 44 51 63 43 1982 67 68 62 40 33 26 27 28 33 41 66 81 48 1983 78 64 55 55 33 23 22 25 32 37 43 61 44 1984 68 72 56 37 33 26 26 26 39 41 61 74 47 1985 70 59 64 45 31 23 28 40 37 50 64 66 48 1986 *** 74 60 56 33 29 28 30 29 41 58 70 *** 1987 58 58 57 47 35 23 36 32 38 50 43 54 44 1988 61 69 55 47 30 28 32 31 31 36 39 51 43 1989 69 68 56 31 32 23 27 27 29 34 51 60 42 1990 78 68 47 39 29 22 30 29 27 37 44 61 43 1991 83 62 67 37 39 29 30 33 36 46 54 68 49 1992 73 55 56 50 53 34 29 42 33 39 44 75 49 1993 78 81 59 47 37 31 31 33 31 36 57 64 49 1994 65 50 52 38 35 32 34 27 33 54 55 59 45 1995 59 65 51 57 32 32 28 28 32 43 38 76 45 1996 81 75 71 45 48 31 31 28 32 39 46 53 48 1997 57 43 49 38 34 33 26 26 29 38 62 76 43 1998 78 69 58 42 36 31 33 33 36 42 43 56 46 1999 76 53 65 47 33 31 40 30 39 42 61 68 49 2000 61 69 37 31 28 28 29 30 33 49 62 79 45 MEAN 71 67 59 46 38 30 30 32 35 45 58 68 48 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1961 50 32 25 40 23 21 17 21 22 27 35 44 30 1962 46 33 33 33 30 27 25 31 32 29 35 47 33 1963 42 42 41 35 32 22 19 25 24 31 38 40 33 1964 *** 42 42 33 38 33 27 31 32 37 44 55 *** 1965 66 40 34 27 25 23 20 30 31 38 51 47 36 1966 44 46 36 27 19 13 16 15 19 32 28 31 27 1967 36 39 21 24 18 10 12 13 16 18 27 27 22 1968 28 38 25 20 15 14 14 13 13 17 48 48 24 1969 55 51 24 19 13 11 12 16 18 20 37 34 26 1970 49 30 29 21 14 12 13 12 15 20 22 40 23 1971 39 32 27 19 13 12 13 16 18 20 35 41 24 1972 62 58 39 21 21 13 13 *** 15 17 28 54 *** 1973 45 36 24 21 14 17 20 17 14 16 35 50 26 1974 *** 59 40 25 23 15 13 13 13 17 19 34 *** 1975 38 26 26 17 12 10 6 7 9 12 23 40 19 1976 19 35 32 15 11 10 8 5 3 *** 32 46 *** 1977 51 26 11 23 18 27 12 13 11 17 30 33 23 1978 33 42 31 12 15 8 11 10 15 24 37 37 23 1979 39 36 32 12 19 12 12 14 10 16 28 46 23 1980 41 37 30 17 15 14 10 12 15 23 29 32 23 1981 38 33 22 18 16 15 15 10 14 19 22 27 21 1982 36 30 29 15 17 12 11 11 13 18 37 48 23 1983 49 24 24 24 15 10 9 11 14 18 20 37 21 1984 41 41 30 14 14 10 10 12 14 18 30 38 23 1985 40 19 24 15 9 8 13 14 14 22 28 38 20 1986 *** 44 34 26 15 14 11 14 13 21 34 45 *** 1987 30 29 27 23 18 9 22 15 21 29 21 29 23 1988 31 45 28 22 11 13 15 14 12 18 21 27 21 1989 41 39 25 14 17 9 13 12 13 19 27 33 22 1990 49 34 23 17 13 12 16 13 14 19 24 35 22 1991 53 34 36 17 18 12 15 16 17 25 31 44 27 1992 47 25 27 23 26 15 12 20 15 20 25 48 25 1993 54 51 26 21 17 12 12 14 14 18 31 36 26 1994 38 27 27 18 17 14 18 13 15 31 30 31 23 1995 32 36 25 29 14 14 13 12 13 21 20 50 23 1996 54 44 43 23 23 15 13 12 14 19 26 27 26 1997 32 23 20 17 15 17 12 12 14 20 35 47 22 1998 46 39 30 17 15 13 14 15 18 19 24 34 24 1999 48 25 38 24 18 16 23 14 22 23 35 39 27 2000 35 31 17 14 13 13 13 14 15 26 36 51 23 MEAN 43 36 29 21 18 14 14 15 16 22 30 40 25 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 1 0 0 3 1 0 0 0 0 0 0 0 5 1962 2 0 0 2 0 0 0 0 0 0 0 1 5 1963 0 0 2 1 0 0 0 0 0 0 0 0 3 1964 *** 1 1 0 0 0 0 0 0 0 0 2 *** 1965 1 0 1 0 0 0 0 0 0 0 0 0 2 1966 1 1 0 0 0 0 0 0 0 0 0 0 2 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 1 1 1969 4 0 0 0 0 0 0 0 0 0 0 0 4 1970 0 0 0 0 0 0 0 0 0 0 0 0 0 1971 0 0 1 0 0 0 0 0 0 0 1 2 4 1972 0 2 2 1 2 0 0 *** 0 0 0 1 *** 1973 0 1 0 0 0 0 0 0 0 0 0 1 2 1974 *** 2 2 1 1 0 0 0 0 0 0 1 *** 1975 2 0 0 2 0 0 0 0 0 0 0 0 4 1976 0 0 4 1 0 0 0 0 0 2 2 1 10 1977 3 0 0 3 2 0 0 0 0 2 0 0 10 1978 1 3 1 0 1 0 0 0 0 0 1 3 10 1979 1 0 2 0 3 1 0 0 0 0 0 2 9 1980 1 1 0 0 1 0 0 0 0 0 0 0 3 1981 0 1 3 0 0 0 0 0 0 0 0 0 4 1982 2 1 2 0 0 0 0 0 0 0 0 2 7 1983 2 0 1 3 0 0 0 0 0 0 0 0 6 1984 1 1 2 0 0 0 0 0 0 0 0 0 4 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 *** 2 2 0 0 0 0 0 0 0 0 1 *** 1987 0 1 2 1 0 0 0 0 0 1 0 0 5 1988 0 2 4 0 0 0 0 0 0 0 0 0 6 1989 2 2 0 0 0 0 0 0 0 0 0 0 4 1990 3 1 0 0 0 0 0 0 0 0 0 1 5 1991 1 1 1 0 1 0 0 0 0 0 0 2 6 1992 0 0 0 1 1 0 0 0 0 0 0 3 5 1993 2 3 0 2 1 0 0 0 0 0 0 0 8 1994 0 0 1 0 0 0 0 0 0 0 1 0 2 1995 0 3 0 1 0 0 0 0 0 0 0 1 5 1996 1 3 2 1 2 0 0 0 0 0 0 0 9 1997 1 0 1 0 0 0 0 0 0 0 0 0 2 1998 2 2 1 0 1 0 0 0 0 0 0 0 6 1999 3 0 4 0 0 0 0 0 0 0 1 0 8 2000 1 0 0 0 0 0 0 0 0 1 0 1 3 MEAN 1 1 1 1 0 0 0 0 0 0 0 1 5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 15.4 18.4 24.0 27.2 31.4 40.0 39.2 34.0 32.0 29.0 21.6 18.8 1 YEAR - DAY 1987-27 1992-25 1968-14 1994-26 1990-26 1977-16 1962- 5 1967- 4 1973-12 1973- 7 1994- 6 1989- 2 LOW. DRY 03 -10.2 -8.0 -2.2 3.2 8.0 15.2 17.0 16.6 6.2 2.4 -6.2 -11.0 2 YEAR - DAY 1973- 2 1972- 3 1961- 6 1994- 5 1992- 2 2000-14 1974-26 1992-31 1962-27 1961-31 1964-30 1964-11 HIG. WET 03 10.0 12.0 18.0 17.2 22.0 22.2 23.2 26.2 21.6 19.0 16.2 10.8 3 YEAR - DAY 1966-30 1966- 2 1966-13 1965-20 1964-27 1961- 7 1964- 7 1964-22 1996-19 1965-25 1965- 9 1994- 4 LOW. WET 03 -11.0 -8.2 -4.8 -0.4 4.2 8.0 9.2 8.0 3.0 -2.0 -8.1 -11.0 4 YEAR - DAY 1971-27 1972- 3 1992- 2 1994- 5 1977- 1 1967- 7 1968-16 1967-27 1962-27 1961-31 1962-24 1964-11 HIG. DRY 09 24.2 27.0 32.2 38.0 43.0 45.2 46.2 45.0 41.0 37.0 30.0 24.2 5 YEAR - DAY 1963-26 1963-28 1968-13 1968-21 1970-31 1970-25 1964- 9 1977-17 1967- 8 1972- 6 1971- 4 1977- 5 LOW. DRY 09 -1.8 -1.0 0.6 8.0 15.0 23.2 27.0 24.6 20.2 9.6 5.0 0.6 6 YEAR - DAY 1996-12 1972- 1 1998- 1 1976- 1 1979- 8 1962-19 1999-13 1992-31 1965- 9 1987-27 1975-29 1992-30 HIG. WET 09 15.2 19.0 19.2 25.2 35.0 32.2 33.2 29.0 25.2 29.8 20.2 15.2 7 YEAR - DAY 1966-29 1966-28 1964-25 1975-27 1976-10 1977- 9 1968-23 1965-21 1962- 3 1986-23 1964- 9 1965-17 LOW. WET 09 -3.4 -1.4 -0.4 3.6 8.4 12.0 14.4 13.4 11.0 6.4 1.6 -3.0 8 YEAR - DAY 1969- 9 1991-13 1985-11 1994- 5 1984- 2 2000-14 1968-13 1992-31 1962-20 1993- 8 1987-30 1963-26 HIG. DRY 15 18.0 23.4 29.2 35.0 39.4 43.0 44.8 44.0 40.0 32.6 24.8 21.6 9 YEAR - DAY 1963-26 1988- 2 1968-13 1970-18 2000-26 1990-29 1998- 8 1977-17 1970- 8 1997- 6 1993-11 1994-20 LOW. DRY 15 -5.8 -3.0 0.4 6.0 13.2 22.0 23.2 23.0 18.2 8.4 3.0 -2.0 10 YEAR - DAY 1996-14 1972- 1 1998- 1 1976- 1 1978- 2 1961- 9 1968-29 1977-30 1962-26 1987-27 1975-29 1963-26 HIG. WET 15 16.0 16.4 18.2 21.2 25.2 33.0 34.0 32.0 28.0 21.0 19.0 12.0 11 YEAR - DAY 1966-30 1963-28 1968-13 1977-15 1964-10 1977-25 1963- 5 1964-11 1963-29 1965- 9 1972- 1 1991-12 LOW. WET 15 -6.2 -3.0 -1.4 3.0 8.4 11.2 13.0 12.4 9.8 4.6 0.0 -3.2 12 YEAR - DAY 1996-14 1961- 1 1985-11 1976- 1 1989- 1 1961- 9 1970- 8 1992-31 1981-24 1987-11 1964-30 1988-29 HIG. MIN. 11.3 16.0 20.1 24.4 29.5 32.0 33.8 32.0 27.0 23.4 19.0 16.4 13 YEAR - DAY 1987-27 1962-21 1966-13 1991-26 1986-26 1999-26 1995-12 1967- 4 2000- 5 1997-14 1988-12 1989- 2 LOW. MIN. -11.0 -9.0 -4.0 0.1 6.0 14.0 16.0 12.0 5.0 -1.0 -6.2 -11.0 14 YEAR - DAY 1978-15 1976-17 1975- 7 1965- 7 1978- 9 1961- 9 1974-26 1985-31 1962-27 1961-31 1964-30 1964-11 HIG. MAX. 26.1 28.1 33.0 39.0 43.0 46.1 48.0 46.0 42.4 38.1 31.1 27.7 15 YEAR - DAY 1966-27 1962-20 1964-26 1968-21 1970-27 1970-24 1978- 1 1982- 4 1998- 5 1965-15 1965- 7 1994-20 LOW. MAX. 0.6 0.0 5.0 8.0 16.0 25.4 30.0 27.2 22.5 9.0 5.0 1.0 16 YEAR - DAY 1996-13 1972-10 1998- 1 1976- 1 1979- 8 2000-13 1968-13 1992-31 1991-27 1976-31 1975-29 1963-26 HIG. PPTN 17.0 29.0 52.0 32.0 53.0 7.0 0.6 0.2 1.0 20.0 14.0 23.0 17 YEAR - DAY 1979-24 1996-22 1987-31 1975-17 1979- 8 1979- 4 1999-15 1988-25 1963-10 1976-30 1971-12 1978- 3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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 24.4 23.0 22.8 22.0 27.0 21.0 19.0 19.4 24.2 24.0 23.2 24.2 18 YEAR - DAY 1966- 6 1973- 6 1970-18 1970-14 1977- 1 1969-23 1967-20 1976-15 1968-22 1971-15 1964-20 1963- 1 DRY 15 - DRY 09 12.2 13.0 12.0 16.0 14.0 11.0 12.0 10.0 13.1 15.0 14.0 13.0 19 YEAR - DAY 1966- 6 1977-20 1976-11 1968-21 1974-27 1976- 1 1976-26 1964-18 1965- 7 1969-14 1974-11 1963-11 DRY 15 - DRY 03 16.2 18.0 18.8 19.0 24.0 16.4 16.0 17.6 22.2 17.8 15.2 15.2 20 YEAR - DAY 1962- 6 1971-27 1963-16 1977-19 1977- 1 1990-19 1974-27 1974-20 1970-28 1974-16 1964-20 1963-31 WET 09 - WET 03 17.4 16.3 15.2 14.2 21.8 16.0 19.2 13.0 14.8 21.2 18.0 19.0 21 YEAR - DAY 1966- 6 1966- 8 1971- 4 1975-27 1976-10 1977-19 1968-23 1974-31 1964-30 1986-23 1969-29 1965-11 WET 15 - WET 09 9.0 11.0 11.0 9.0 22.8 10.0 15.0 12.0 8.0 16.2 10.8 10.2 22 YEAR - DAY 1967-22 1973- 7 1971-21 1978- 8 1976-10 1970- 8 1968-23 1977-18 1965-30 1986-23 1993- 8 1963-25 WET 15 - WET 03 13.2 14.0 13.0 12.0 16.0 15.0 16.0 13.0 17.0 13.0 13.0 12.2 23 YEAR - DAY 1962- 6 1968-29 1971- 4 1964-21 1977- 1 1977-22 1963- 5 1977- 5 1963-29 1968-25 1964- 5 1962- 2 DAY BY DAY DRY 03 12.4 14.4 14.0 12.0 11.6 14.0 13.2 10.2 10.0 11.4 18.0 11.6 24 YEAR - DAY 1992- 1 1962-22 1965-14 1964- 7 1997- 6 1977-17 1974-26 1963-28 1971-12 1994-15 1993-15 1994- 5 DAY BY DAY WET 03 9.2 11.2 10.0 9.8 11.8 8.0 8.0 9.2 8.8 10.0 12.2 10.2 25 YEAR - DAY 1961-28 1964-11 1965-14 1977-19 1969- 4 1961- 9 1974-26 1992-22 1996-19 1962-12 1993-15 1994- 5 DAY BY DAY DRY 09 12.4 16.0 17.0 15.2 15.0 10.8 10.0 9.1 12.0 11.0 12.8 11.8 26 YEAR - DAY 1997-29 1988- 3 1969-24 1965-19 1978- 2 1962-20 1978- 3 1965- 7 1965-10 1977-23 1992-26 1985- 5 DAY BY DAY WET 09 8.2 10.0 9.8 8.2 18.8 11.8 14.2 7.8 7.2 14.4 8.6 11.2 27 YEAR - DAY 1979- 8 1965-10 1971-22 1977-16 1976-10 1961- 8 1968-23 1977- 1 1962-20 1986-23 1988-15 1963-26 DAY BY DAY DRY 15 11.0 16.8 15.0 15.8 15.2 12.4 11.8 11.2 12.0 15.0 15.4 15.2 28 YEAR - DAY 1967-22 1988- 3 1983- 6 1979-27 1997- 5 2000-13 1978- 3 1977-30 1995-21 1984-20 1993-14 1994-21 DAY BY DAY WET 15 9.0 9.0 9.0 8.8 11.0 11.9 14.0 13.0 11.0 8.2 9.0 9.0 29 YEAR - DAY 1969- 6 1973- 7 1972-20 1978-14 1977- 6 1961- 8 1963- 5 1977-31 1977- 1 1984-20 1972- 1 1963-25 DAY BY DAY MIN. 11.2 16.0 11.9 12.6 11.1 10.0 9.9 10.0 8.1 10.0 11.4 9.5 30 YEAR - DAY 1968-17 1962-22 1965-14 1976-16 1969-24 1976-18 1968-13 1976-16 1968-23 1962-12 1992-27 1983-15 DAY BY DAY MAX. 12.0 12.0 16.1 15.0 12.0 11.0 9.0 7.4 11.0 12.8 12.6 13.2 31 YEAR - DAY 1983-26 1984- 9 1969-24 1979-27 1978- 2 2000-13 1978- 3 1993-24 1967-25 1987-27 1993-15 1994-22 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 6.2 7.7 13.0 17.4 27.0 30.0 32.7 29.3 28.2 20.1 13.4 10.1 19.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.2 0.4 5.3 10.9 19.2 21.7 24.9 21.7 19.9 11.1 4.0 1.0 11.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.6 15.0 20.7 23.9 34.8 37.9 40.4 36.9 36.5 29.1 22.9 19.2 27.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.8 14.6 15.4 13.0 15.6 16.2 15.5 15.2 16.6 18.0 18.9 18.2 15.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.64 3.13 3.60 6.57 7.51 8.08 8.95 9.05 7.64 5.03 3.74 3.20 5.84 MEAN OF MIXING RATIO AT 09 GMT. 4.41 3.24 3.63 6.64 7.80 8.59 7.97 8.07 8.21 6.56 5.84 6.15 6.43 MEAN OF MIXING RATIO AT 15 GMT. 4.08 3.44 4.07 6.58 7.98 8.75 8.71 8.55 8.17 5.90 5.64 5.61 6.46 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.5 -7.1 -2.5 4.0 13.1 14.0 20.1 15.0 16.1 -1.0 -3.0 -3.0 -7.1 DAY 11 2 6 4 3 9 5 12 23 31 28 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.0 22.0 29.1 34.1 40.0 42.1 46.0 41.1 42.0 35.1 28.1 22.1 46.0 DAY 22 14 26 29 26 6 12 1 4 3 7 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 0.0 3.0 13.0 12.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13.0 DAY 5 ** 23 3 22 ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 9.0 0.0 7.0 45.0 13.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 74.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 21.6 78.4 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 4 0 3 6 2 0 0 0 0 0 0 0 15 NO. OF DAYS PRECIPITATION EQUAL 4 0 3 6 2 0 0 0 0 0 0 0 15 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 2 1 0 0 0 0 0 0 0 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 64 54 69 42 36 35 45 44 50 59 63 53 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 33 25 41 24 21 17 21 23 27 36 46 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 46 37 49 30 26 22 28 29 36 54 67 41 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 6 0 0 0 0 0 0 0 0 0 0 10 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 6 22 30 21 13 0 0 0 92 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 6 29 29 31 30 30 20 0 0 175 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 8 22 2 6 0 0 0 40 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 17 11 2 0 0 0 0 0 0 1 5 14 50 DATE OF START AND END FREEZING START = 31 OCT. END = 6 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 7.7 11.6 16.6 19.1 25.5 29.0 31.8 29.0 24.1 20.4 11.4 8.9 19.6 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.5 3.5 8.4 12.1 17.7 21.1 24.2 21.7 14.9 11.3 3.2 1.1 11.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 14.9 19.8 24.9 26.2 33.4 36.9 39.4 36.4 33.4 29.6 19.7 16.7 27.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.4 16.3 16.5 14.1 15.7 15.8 15.2 14.7 18.5 18.3 16.5 15.6 16.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.16 3.68 5.19 6.50 8.55 9.71 11.04 10.22 7.61 5.48 3.51 3.12 6.48 MEAN OF MIXING RATIO AT 09 GMT. 4.75 4.49 5.88 6.56 9.65 10.07 11.04 11.47 10.66 7.46 5.33 5.63 7.75 MEAN OF MIXING RATIO AT 15 GMT. 4.95 5.18 6.11 6.90 9.15 10.42 11.92 11.53 10.37 7.73 5.48 5.39 7.93 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.0 -5.0 1.0 7.1 12.0 14.1 21.0 16.1 5.0 4.0 -6.0 -6.2 -6.2 DAY 22 23 5 9 1 12 31 31 27 13 30 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.1 28.1 32.0 31.0 37.1 41.1 42.0 42.0 41.0 35.0 28.0 23.0 42.0 DAY 6 20 25 10 23 16 3 22 13 7 6 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 1.0 1.0 22.0 0.0 0.0 0.0 0.0 0.0 2.0 0.0 5.0 22.0 DAY 16 28 1 24 ** ** ** ** ** 24 ** 12 MONTHLY TOTAL PRECIPITATION IN MM. 14.0 1.0 1.0 37.0 0.0 0.0 0.0 0.0 0.0 3.0 0.0 9.5 65.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 24.4 56.5 0.0 19.1 NO. OF DAYS WITH PRECIPITATION. 2 1 1 2 0 0 0 0 0 2 0 3 11 NO. OF DAYS PRECIPITATION EQUAL 2 1 1 2 0 0 0 0 0 2 0 3 11 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 2 0 0 0 0 0 0 0 0 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 60 62 58 50 46 45 50 55 54 55 63 56 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 48 33 33 33 30 29 25 31 33 29 37 51 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 54 45 46 37 33 31 37 45 47 60 71 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 0 5 2 8 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 6 21 31 19 3 0 0 0 80 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 4 4 24 29 29 31 21 17 0 0 159 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 12 4 2 0 0 0 21 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. 18 9 0 0 0 0 0 0 0 0 14 12 53 DATE OF START AND END FREEZING START = 17 NOV. END = 26 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 9.8 12.5 14.0 22.0 24.5 31.0 33.1 30.6 26.5 21.9 13.6 6.9 20.5 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.6 4.6 6.0 14.8 17.4 22.8 25.2 22.3 16.3 12.6 5.0 -2.0 12.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 19.0 20.4 22.1 29.2 31.5 39.2 41.1 39.0 36.7 31.2 22.2 15.7 28.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 18.4 15.8 16.1 14.4 14.1 16.4 15.9 16.7 20.4 18.6 17.2 17.7 16.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.09 4.24 4.73 7.61 9.00 10.01 10.22 10.13 7.34 6.80 4.58 2.79 6.71 MEAN OF MIXING RATIO AT 09 GMT. 5.46 6.29 6.39 8.54 8.81 9.89 9.20 10.74 8.67 8.93 6.15 4.83 7.83 MEAN OF MIXING RATIO AT 15 GMT. 5.35 6.24 6.44 8.43 9.13 10.28 13.14 11.65 11.33 9.04 6.03 4.32 8.45 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.2 -1.4 -2.0 10.0 12.1 19.0 18.1 17.1 10.1 7.1 0.0 -9.0 -9.0 DAY 10 6 9 2 19 25 1 23 12 12 20 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 26.0 28.0 29.0 35.0 38.0 43.1 45.0 42.0 41.1 36.0 28.0 22.1 45.0 DAY 26 24 16 11 29 22 15 10 6 22 2 23 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 3.0 20.0 5.0 3.0 0.0 0.0 0.0 1.0 0.0 0.0 3.0 20.0 DAY ** 2 28 22 18 ** ** ** 10 ** ** 4 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 4.0 26.0 7.0 6.0 0.0 0.0 0.0 1.0 0.0 0.0 3.0 47.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 63.8 27.7 2.1 6.4 NO. OF DAYS WITH PRECIPITATION. 0 2 2 2 3 0 0 0 1 0 0 1 11 NO. OF DAYS PRECIPITATION EQUAL 0 2 2 2 3 0 0 0 1 0 0 1 11 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 67 67 67 58 54 43 40 48 47 59 66 69 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 42 44 41 35 32 23 19 26 24 32 38 47 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 62 58 53 44 41 29 32 33 42 47 56 63 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 9 12 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 2 3 24 28 23 1 0 0 0 81 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 12 20 30 31 31 29 20 0 0 173 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 14 25 12 7 0 0 0 58 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 20 5 3 0 0 0 0 0 0 0 1 23 52 DATE OF START AND END FREEZING START = 20 NOV. END = 10 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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.***** 9.4 15.9 19.2 26.5 30.9 33.6 32.7 26.4 17.9 13.5 4.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** 1.4 7.3 10.8 17.3 22.1 24.9 23.5 17.7 8.3 4.4 -3.0 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 17.4 24.6 27.5 35.6 39.7 42.3 42.0 35.1 27.6 22.6 11.4 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 16.0 17.3 16.7 18.3 17.6 17.4 18.5 17.4 19.3 18.2 14.4 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 3.81 5.46 5.98 9.86 11.05 12.21 13.68 8.43 4.71 5.02 2.68 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 5.28 7.60 7.30 13.94 14.29 14.08 15.26 10.98 8.00 7.67 4.50 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 5.18 7.76 7.74 13.41 13.61 12.90 14.95 10.42 7.39 6.59 4.02 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -5.1 1.1 5.1 9.2 18.0 21.1 21.1 8.0 3.1 -6.2 -11.0 ****** DAY ** 1 3 2 4 6 16 23 26 16 30 11 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 24.1 33.0 34.1 39.2 44.0 47.0 45.1 38.2 36.1 29.0 18.0 ****** DAY ** 23 26 29 17 27 11 22 3 22 21 7 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 5.0 10.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8.0 ****** DAY ** 13 29 ** ** ** ** ** ** ** ** 26 MONTHLY TOTAL PRECIPITATION IN MM. ***** 5.0 15.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 54.1 0.0 0.0 45.9 NO. OF DAYS WITH PRECIPITATION. *** 1 3 0 0 0 0 0 0 0 0 3 *** NO. OF DAYS PRECIPITATION EQUAL *** 1 3 0 0 0 0 0 0 0 0 3 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 0 1 0 0 0 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 72 69 59 54 47 44 53 51 55 79 77 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 46 42 33 38 33 29 33 32 38 47 58 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 59 57 44 47 38 34 41 39 49 58 71 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 1 0 0 0 0 0 0 0 0 1 16 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 0 2 6 26 31 31 11 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 3 10 30 30 31 31 30 12 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 13 28 29 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 5 3 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** 12 0 0 0 0 0 0 0 0 2 27 *** DATE OF START AND END FREEZING START = 29 NOV. END = 29 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 6.4 9.7 14.5 19.8 27.4 31.0 32.6 30.6 26.5 23.1 16.5 9.9 20.7 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.2 1.5 6.9 11.8 18.9 22.7 24.8 21.5 17.5 14.2 7.1 0.3 12.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.5 17.9 22.0 27.7 35.8 39.2 40.4 39.8 35.5 32.1 25.9 19.5 29.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.3 16.4 15.1 15.9 16.9 16.5 15.6 18.3 18.0 17.9 18.8 19.2 16.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.56 3.46 4.91 5.14 7.19 9.84 11.40 10.34 10.77 9.26 6.52 3.30 7.14 MEAN OF MIXING RATIO AT 09 GMT. 5.94 5.06 5.14 6.52 9.22 9.86 9.10 13.45 10.91 11.11 10.33 6.51 8.60 MEAN OF MIXING RATIO AT 15 GMT. 5.29 4.63 5.06 5.29 7.96 9.39 9.60 12.08 11.13 10.36 7.52 4.96 7.77 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -3.1 -1.0 0.1 8.1 20.0 22.0 17.1 12.0 7.1 0.0 -5.1 -6.0 DAY 7 11 17 7 5 8 28 24 10 27 26 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.1 25.0 32.0 37.1 41.1 42.1 45.1 42.1 41.1 38.1 31.1 24.1 45.1 DAY 13 14 11 29 17 16 14 2 7 15 7 15 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 0.0 15.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15.0 DAY 11 ** 3 ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 18.0 0.0 15.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 33.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 100.0 0.0 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 4 0 1 0 0 0 0 0 0 0 0 0 5 NO. OF DAYS PRECIPITATION EQUAL 4 0 1 0 0 0 0 0 0 0 0 0 5 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 68 64 46 41 40 41 47 61 69 82 72 59 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 42 36 32 26 23 20 32 33 38 51 49 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 53 45 30 28 27 25 36 43 52 60 63 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 0 0 0 0 0 0 0 0 0 0 2 6 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 13 28 31 22 4 0 0 0 99 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 2 9 29 30 31 31 30 24 3 0 189 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 5 12 18 19 3 0 0 0 57 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 18 15 4 0 0 0 0 0 0 0 1 16 54 DATE OF START AND END FREEZING START = 26 NOV. END = 18 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 11.5 12.8 14.8 19.8 25.9 31.6 31.9 30.7 27.8 19.8 11.5 8.4 20.5 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.8 4.8 7.3 12.4 18.6 23.4 24.5 22.6 19.8 12.7 2.4 0.7 12.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 21.1 20.8 22.2 27.2 33.3 39.7 39.2 38.8 35.9 26.8 20.5 16.0 28.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 19.3 16.0 14.9 14.8 14.7 16.3 14.7 16.2 16.1 14.1 18.1 15.3 15.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.79 4.94 5.27 5.85 7.15 7.40 8.65 9.21 6.88 6.07 3.25 2.95 5.95 MEAN OF MIXING RATIO AT 09 GMT. 6.36 6.95 6.27 6.17 6.45 6.29 7.12 6.74 7.54 7.37 4.28 3.55 6.26 MEAN OF MIXING RATIO AT 15 GMT. 5.80 6.72 5.33 5.87 5.63 5.82 7.21 6.62 6.93 6.46 3.75 3.54 5.81 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.1 0.0 0.1 6.0 12.1 20.0 21.1 19.1 14.0 7.0 -3.1 -4.0 -4.0 DAY 17 6 3 6 11 1 3 17 14 22 25 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 26.1 27.1 29.1 34.1 39.0 45.0 44.1 43.0 41.0 34.1 27.1 21.1 45.0 DAY 27 26 12 17 16 21 6 30 7 1 1 18 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 6.0 1.0 1.5 2.0 0.0 0.0 0.0 0.0 0.4 0.0 0.3 6.0 DAY 13 10 1 25 5 ** ** ** ** 15 ** 19 MONTHLY TOTAL PRECIPITATION IN MM. 5.0 6.0 1.2 1.5 2.1 0.0 0.0 0.0 0.0 0.8 0.0 0.3 16.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 72.2 21.3 0.0 6.5 NO. OF DAYS WITH PRECIPITATION. 1 1 2 1 2 0 0 0 0 2 0 1 10 NO. OF DAYS PRECIPITATION EQUAL 1 1 1 1 1 0 0 0 0 0 0 0 5 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 71 75 66 52 41 30 35 39 37 54 57 63 52 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 44 47 39 29 21 14 17 16 20 33 28 31 28 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 65 64 43 36 23 16 20 19 24 39 37 46 36 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 2 9 28 31 27 14 0 0 0 111 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 10 26 30 31 31 29 7 0 0 164 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 12 12 14 4 0 0 0 42 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 0 0 0 0 0 0 1 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 13 2 0 0 0 0 0 0 0 0 10 16 41 DATE OF START AND END FREEZING START = 14 NOV. END = 8 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 6.6 7.2 13.0 18.4 25.2 28.9 33.0 30.4 27.4 20.2 14.3 7.4 19.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.9 0.8 5.5 11.8 17.9 20.8 25.3 22.2 18.7 12.0 7.0 -0.4 11.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 14.2 13.6 20.6 25.0 32.6 37.0 40.7 38.6 36.1 28.5 21.7 15.3 27.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.1 12.8 15.1 13.2 14.7 16.2 15.4 16.4 17.4 16.5 14.7 15.7 15.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.08 3.09 3.29 5.47 5.60 5.22 7.28 5.98 4.66 4.57 3.75 2.17 4.43 MEAN OF MIXING RATIO AT 09 GMT. 3.77 3.89 3.23 4.63 5.53 4.08 5.82 5.90 6.26 4.43 4.63 3.42 4.63 MEAN OF MIXING RATIO AT 15 GMT. 3.81 4.08 3.21 5.26 5.17 4.23 6.54 5.29 5.86 4.87 4.87 3.38 4.71 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -6.0 -2.1 2.1 10.0 15.0 21.1 15.1 13.0 6.0 -4.0 -7.0 -7.0 DAY 1 4 1 4 1 7 4 27 26 24 30 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 23.0 24.1 28.1 33.0 40.1 41.0 46.1 43.0 42.1 34.0 30.0 21.0 46.1 DAY 18 24 7 24 31 20 9 21 8 11 2 15 24 HOUR MAXIMUM PRECIPITATION IN MM. 1.5 0.4 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 0.0 1.5 DAY 22 16 ** 15 ** ** ** ** ** ** 20 ** MONTHLY TOTAL PRECIPITATION IN MM. 1.5 0.4 0.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 0.0 4.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 40.4 42.6 0.0 17.0 NO. OF DAYS WITH PRECIPITATION. 1 1 0 4 0 0 0 0 0 0 2 0 8 NO. OF DAYS PRECIPITATION EQUAL 1 0 0 1 0 0 0 0 0 0 0 0 2 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 52 62 47 51 34 26 30 29 29 43 50 49 42 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 40 42 22 25 18 10 12 13 17 18 28 31 23 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 57 55 28 36 22 13 17 15 20 28 43 47 32 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 2 0 0 0 0 0 0 0 0 1 7 15 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 10 16 31 22 11 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 7 22 29 31 31 28 11 1 0 160 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 6 18 12 5 0 0 0 42 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 0 0 0 0 0 3 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 14 4 0 0 0 0 0 0 0 1 16 57 DATE OF START AND END FREEZING START = 30 NOV. END = 4 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 7.2 7.7 14.6 19.3 24.5 30.9 31.1 30.5 27.0 21.2 14.4 9.1 19.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.1 1.2 7.6 11.9 17.0 24.3 23.2 22.2 17.1 12.9 8.0 3.0 12.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 14.5 14.3 21.6 26.6 31.9 37.4 38.9 38.9 36.9 29.5 20.8 15.1 27.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.6 13.1 14.0 14.7 14.9 13.1 15.7 16.7 19.8 16.6 12.8 12.1 14.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.03 3.09 3.81 4.25 5.45 6.32 5.67 5.17 4.33 4.09 5.22 3.54 4.41 MEAN OF MIXING RATIO AT 09 GMT. 3.37 3.86 4.12 4.53 4.60 6.07 6.95 5.93 5.56 4.32 7.71 5.68 5.22 MEAN OF MIXING RATIO AT 15 GMT. 3.36 4.36 4.60 5.12 5.18 5.45 6.24 5.55 5.41 5.40 7.25 5.12 5.25 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.0 -6.0 -0.1 7.0 10.0 17.0 17.1 18.1 8.0 5.0 3.0 -3.0 -7.0 DAY 20 6 25 14 5 1 13 28 21 31 23 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 23.1 24.0 32.2 39.0 39.0 44.0 46.0 43.1 41.1 36.0 25.1 21.1 46.0 DAY 15 29 13 21 21 28 5 17 6 4 15 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 1.0 0.7 0.4 1.8 0.2 0.0 0.0 0.0 0.0 1.0 7.5 7.5 DAY ** 3 6 23 27 7 ** ** ** ** 18 7 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 1.7 1.3 0.4 2.0 0.2 0.0 0.0 0.0 0.0 2.5 7.9 16.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 18.8 16.3 0.0 65.0 NO. OF DAYS WITH PRECIPITATION. 0 3 3 1 2 1 0 0 0 0 4 2 16 NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 1 0 0 0 0 0 1 1 4 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 49 63 50 43 37 28 26 25 28 38 69 63 43 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 32 40 27 22 15 15 16 13 14 17 49 52 26 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 46 56 37 32 22 17 19 16 19 30 64 63 35 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 4 0 0 0 0 0 0 0 0 0 0 11 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 4 24 25 21 4 0 0 0 78 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 2 9 26 30 31 31 29 20 0 0 178 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 11 16 9 0 0 0 38 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 15 1 0 0 0 0 0 0 0 0 10 41 DATE OF START AND END FREEZING START = 14 DEC. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 4.2 6.2 17.4 20.1 25.7 31.3 32.6 29.5 25.8 22.3 10.5 9.7 19.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.6 0.4 10.3 13.0 17.3 23.0 24.8 22.3 17.0 13.6 2.8 2.8 12.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.1 12.0 24.4 27.3 34.1 39.6 40.5 36.7 34.6 31.0 18.1 16.7 27.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.7 11.6 14.1 14.3 16.8 16.6 15.7 14.4 17.6 17.4 15.3 13.9 14.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.84 3.06 4.37 3.95 4.87 5.22 7.08 7.83 6.23 5.29 3.48 3.19 4.78 MEAN OF MIXING RATIO AT 09 GMT. 4.60 4.51 4.56 4.47 4.46 4.98 5.98 6.40 6.14 5.58 5.24 4.35 5.11 MEAN OF MIXING RATIO AT 15 GMT. 4.03 4.52 5.53 4.55 5.29 5.15 5.51 6.25 6.21 6.11 4.48 4.40 5.17 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.0 -4.2 0.0 4.0 9.0 14.0 18.0 16.0 14.0 9.0 -3.2 -2.0 -9.0 DAY 8 2 25 15 3 23 14 22 10 15 18 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 23.0 32.0 35.0 41.1 44.1 45.1 40.1 37.1 37.0 27.1 20.1 45.1 DAY 21 28 31 1 27 30 1 17 5 5 1 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 0.0 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.9 0.5 11.0 DAY 25 ** 24 ** ** ** ** ** ** 28 4 3 MONTHLY TOTAL PRECIPITATION IN MM. 30.0 0.0 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.9 0.8 32.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 93.9 0.0 0.0 6.1 NO. OF DAYS WITH PRECIPITATION. 5 0 1 0 0 0 0 0 0 1 1 2 10 NO. OF DAYS PRECIPITATION EQUAL 5 0 0 0 0 0 0 0 0 0 0 0 5 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 68 48 37 32 23 29 37 43 46 60 60 46 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 52 24 20 13 11 12 16 18 20 39 36 27 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 65 38 26 21 14 14 20 24 32 48 52 35 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 3 0 0 0 0 0 0 0 0 0 0 9 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 6 28 29 22 0 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 4 9 29 30 31 31 30 20 0 0 184 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 11 17 1 0 0 0 0 31 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 4 0 0 0 0 0 4 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 20 16 1 0 0 0 0 0 0 0 12 7 56 DATE OF START AND END FREEZING START = 14 NOV. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 6.5 11.6 14.0 22.3 27.6 31.7 32.3 33.3 26.0 20.4 16.1 8.0 20.8 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.6 4.4 6.7 14.1 19.3 23.0 24.5 25.3 17.5 11.4 7.0 -0.1 12.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.4 18.7 21.3 30.5 35.9 40.3 40.2 41.3 34.5 29.4 25.1 16.0 28.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.8 14.3 14.6 16.4 16.6 17.3 15.7 16.0 17.0 18.0 18.1 16.1 16.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.23 3.65 4.21 4.54 4.99 4.69 5.80 6.73 4.49 3.94 3.91 2.71 4.41 MEAN OF MIXING RATIO AT 09 GMT. 4.62 4.29 4.65 5.61 5.19 6.28 6.00 6.33 5.22 5.63 4.42 4.69 5.24 MEAN OF MIXING RATIO AT 15 GMT. 4.27 4.16 4.50 5.33 5.68 5.41 7.05 6.19 5.18 4.82 4.46 4.19 5.10 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.2 -3.2 1.0 8.1 12.0 14.0 20.1 20.0 9.0 4.1 2.0 -6.2 -6.2 DAY 4 2 17 26 9 12 8 25 21 28 27 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.1 24.1 32.0 39.0 43.0 46.1 45.0 44.1 41.1 37.0 30.0 24.1 46.1 DAY 1 19 31 18 27 24 2 28 8 1 1 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 1.2 0.4 0.0 0.0 0.5 0.0 0.3 0.0 0.0 0.0 0.0 0.0 1.2 DAY 12 23 ** ** 2 ** 18 ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 1.4 0.4 0.0 0.0 0.5 0.0 0.3 0.0 0.0 0.0 0.0 0.0 2.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 69.2 19.2 11.5 0.0 NO. OF DAYS WITH PRECIPITATION. 2 1 0 0 1 0 1 0 0 0 0 0 5 NO. OF DAYS PRECIPITATION EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 63 62 39 29 21 24 26 28 42 57 62 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 32 30 21 14 13 13 13 15 22 22 41 24 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 62 43 38 27 21 15 18 15 15 28 36 56 31 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 6 6 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 13 23 29 30 9 0 0 0 104 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 1 17 28 30 31 31 24 18 2 0 182 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 9 20 20 23 3 0 0 0 75 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 2 0 0 0 0 0 4 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 3 0 0 0 0 0 0 0 0 0 19 37 DATE OF START AND END FREEZING START = 2 DEC. END = 4 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 6.0 9.3 15.7 20.1 28.3 32.3 32.2 31.7 26.2 19.1 14.8 8.9 20.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.6 1.6 8.1 12.4 20.0 24.2 24.6 23.5 18.0 10.0 7.9 2.1 12.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.5 17.1 23.4 27.7 36.5 40.4 39.8 39.9 34.4 28.3 21.8 15.8 28.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.1 15.5 15.3 15.3 16.5 16.2 15.2 16.4 16.4 18.3 13.9 13.7 15.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.20 2.80 4.24 4.99 5.01 5.17 5.37 6.29 5.82 4.13 5.30 3.36 4.56 MEAN OF MIXING RATIO AT 09 GMT. 4.09 4.24 4.89 4.53 5.39 5.88 6.28 7.51 6.23 4.97 5.60 4.66 5.35 MEAN OF MIXING RATIO AT 15 GMT. 3.72 3.61 4.44 5.00 4.84 5.76 6.27 6.68 5.75 5.20 5.90 4.41 5.13 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.0 -4.0 1.0 7.0 14.1 20.0 19.1 20.1 11.1 4.0 4.0 -2.3 -10.0 DAY 27 14 3 20 1 2 22 25 21 14 15 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.0 25.1 32.0 33.1 40.0 44.1 45.1 44.1 40.0 33.2 30.1 23.1 45.1 DAY 5 27 28 17 16 24 8 19 12 8 4 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 0.2 8.0 0.6 0.0 0.0 0.0 0.0 0.0 0.0 14.0 13.0 14.0 DAY ** 24 6 26 ** ** ** ** ** ** 12 20 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 0.2 8.7 1.1 0.0 0.0 0.0 0.0 0.0 0.0 17.5 24.0 51.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 17.3 2.1 0.0 80.6 NO. OF DAYS WITH PRECIPITATION. 0 1 2 2 0 0 0 0 0 0 2 2 9 NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 0 0 0 0 0 0 2 2 5 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 1 2 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 60 60 58 51 25 20 20 27 37 48 73 66 45 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 42 35 28 19 14 12 13 16 18 20 35 43 25 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 57 42 35 30 17 15 17 18 22 33 52 58 33 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 1 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 15 28 29 30 11 0 0 0 113 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 6 8 31 30 31 31 25 10 2 0 174 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 17 16 16 1 0 0 0 52 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 24 11 0 0 0 0 0 0 0 0 0 10 45 DATE OF START AND END FREEZING START = 6 DEC. END = 20 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 3.1 3.0 11.5 20.5 23.1 31.3 32.2 ***** 27.5 23.2 13.5 4.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -1.9 -2.7 5.5 13.0 16.2 23.6 24.9 ***** 17.7 14.0 5.0 -1.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.0 8.8 17.4 27.9 29.9 39.0 39.5 ***** 37.3 32.4 22.0 9.8 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.9 11.5 11.9 14.9 13.7 15.4 14.6 ***** 19.6 18.4 17.0 11.1 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.72 3.01 5.04 4.62 5.73 5.21 5.47 ***** 6.59 4.51 3.38 2.85 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.77 4.30 4.82 5.13 5.32 5.96 6.40 ***** 6.26 5.38 4.75 4.56 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.97 3.79 4.71 5.14 5.95 5.48 5.48 ***** 5.87 4.82 4.48 3.84 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -8.0 1.0 7.0 12.0 19.1 18.0 ***** 14.0 10.0 -0.1 -10.2 ****** DAY 25 3 21 17 10 8 19 ** 25 30 26 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 19.0 25.1 35.0 38.2 45.0 45.0 ***** 41.0 37.1 31.0 16.1 ****** DAY 16 18 31 30 29 30 1 ** 13 5 4 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.5 20.0 12.5 6.0 18.0 0.0 0.0 ***** 0.0 0.0 0.0 6.0 ****** DAY 27 9 2 25 10 ** ** ** ** ** ** 7 MONTHLY TOTAL PRECIPITATION IN MM. 7.3 38.0 28.5 6.0 23.5 0.0 0.0 ***** 0.0 0.0 0.0 10.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 65.1 26.0 0.0 8.8 NO. OF DAYS WITH PRECIPITATION. 5 3 4 1 2 0 0 *** 0 0 0 2 *** NO. OF DAYS PRECIPITATION EQUAL 2 3 4 1 2 0 0 *** 0 0 0 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 2 0 1 0 0 *** 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 85 80 43 42 22 21 *** 38 37 53 72 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 61 40 22 21 13 14 *** 15 17 29 57 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 68 50 30 31 16 15 *** 18 21 41 64 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 11 0 0 0 0 0 *** 0 0 0 8 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 3 26 29 *** 3 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 11 15 30 31 *** 30 29 1 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 10 13 *** 2 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 1 *** 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 23 0 0 0 0 0 *** 0 0 1 18 *** DATE OF START AND END FREEZING START = 26 NOV. END = 28 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 1.8 10.4 15.6 20.3 26.3 32.6 33.4 29.4 27.1 24.4 15.2 4.1 20.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.1 2.8 8.2 12.4 17.6 23.9 25.2 21.1 18.7 15.3 8.6 -1.2 12.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.7 17.9 23.0 28.1 35.0 41.2 41.5 37.7 35.5 33.4 21.9 9.5 27.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.8 15.1 14.8 15.7 17.4 17.3 16.3 16.6 16.8 18.1 13.3 10.7 15.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.36 3.65 4.10 4.41 4.87 5.51 7.21 6.28 5.61 5.37 5.08 2.31 4.73 MEAN OF MIXING RATIO AT 09 GMT. 3.78 4.83 4.47 4.87 5.23 9.69 10.82 7.38 5.69 5.59 6.40 3.98 6.06 MEAN OF MIXING RATIO AT 15 GMT. 3.00 4.01 4.28 4.94 4.79 8.25 9.17 6.64 5.47 6.46 5.97 3.68 5.55 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.4 -4.3 -1.0 7.2 14.2 19.2 22.6 16.2 13.2 12.2 7.0 -6.2 -10.4 DAY 2 8 11 11 2 7 27 13 18 20 13 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 24.0 30.0 37.0 39.2 45.0 45.0 40.2 39.2 36.2 28.2 13.2 45.0 DAY 13 28 21 30 29 13 13 1 2 11 9 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 2.0 14.5 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.0 14.5 DAY 18 10 22 ** ** ** ** ** ** ** ** 24 MONTHLY TOTAL PRECIPITATION IN MM. 2.0 14.5 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.0 28.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 64.9 0.0 0.0 35.1 NO. OF DAYS WITH PRECIPITATION. 1 1 1 0 0 0 0 0 0 0 0 3 6 NO. OF DAYS PRECIPITATION EQUAL 1 1 1 0 0 0 0 0 0 0 0 3 6 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 69 51 39 29 23 27 31 28 34 56 59 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 38 26 21 14 18 21 18 15 19 41 53 28 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 55 45 34 28 19 20 22 19 20 27 44 62 33 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 2 0 0 0 0 0 0 0 0 0 8 31 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 2 26 31 18 7 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 1 14 31 30 31 31 30 26 0 0 194 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 21 26 4 0 0 0 0 51 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 1 0 0 0 0 0 3 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 8 2 0 0 0 0 0 0 0 0 22 62 DATE OF START AND END FREEZING START = 6 DEC. END = 11 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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.***** 2.4 10.9 19.8 22.7 30.2 32.7 29.0 26.7 15.5 14.8 5.1 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** -4.1 5.2 12.3 15.4 21.7 25.1 21.1 17.3 7.3 5.3 -2.1 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 8.9 16.7 27.3 30.0 38.6 40.3 36.9 36.1 23.7 24.4 12.3 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 13.0 11.5 15.0 14.6 16.9 15.2 15.8 18.8 16.4 19.1 14.4 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 2.29 4.49 4.62 5.55 7.44 7.69 7.16 5.93 3.79 3.04 2.28 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 4.36 5.07 5.66 5.91 6.60 7.38 9.40 6.00 3.86 3.14 3.23 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 3.97 4.55 5.79 5.88 5.74 6.12 4.78 4.68 3.12 2.97 2.92 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -7.0 1.0 6.2 10.0 19.0 16.0 18.0 12.4 2.0 0.0 -6.0 ****** DAY ** 3 21 27 23 20 26 30 26 16 28 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 11.2 24.0 33.2 39.0 45.0 45.5 42.0 39.4 31.2 31.0 17.0 ****** DAY ** 25 30 30 29 28 5 20 2 3 4 3 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 13.0 12.0 6.0 5.5 0.0 0.0 0.0 0.0 0.0 0.1 6.0 ****** DAY ** 19 2 25 21 ** ** ** ** ** 8 27 MONTHLY TOTAL PRECIPITATION IN MM. ***** 30.5 26.0 6.0 5.5 0.0 0.0 0.0 0.0 0.0 0.1 14.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 68.8 14.0 0.0 17.2 NO. OF DAYS WITH PRECIPITATION. *** 6 4 1 1 0 0 0 0 0 1 4 *** NO. OF DAYS PRECIPITATION EQUAL *** 6 4 1 1 0 0 0 0 0 0 4 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 2 1 0 0 0 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 73 71 43 41 33 29 33 36 44 45 56 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 61 43 25 23 16 15 24 16 22 21 37 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 67 49 34 31 17 16 14 15 18 29 43 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 18 0 0 0 0 0 0 0 0 0 10 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 0 0 3 20 29 15 1 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 10 16 30 31 31 30 5 2 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 8 16 4 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 1 2 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** 28 0 0 0 0 0 0 0 0 3 28 *** DATE OF START AND END FREEZING START = 28 NOV. END = 28 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 4.4 8.2 9.6 19.1 26.2 30.9 33.8 30.5 25.9 17.9 10.0 3.6 18.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.7 0.8 3.7 11.3 17.8 22.4 25.6 22.3 17.6 9.5 3.7 -1.8 10.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.5 15.6 15.5 26.9 34.7 39.4 41.9 38.7 34.1 26.4 16.4 9.1 25.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.2 14.8 11.8 15.6 16.9 17.0 16.3 16.4 16.5 16.9 12.7 10.9 14.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.84 2.49 3.35 4.35 5.95 5.05 5.22 5.96 4.52 3.36 3.66 3.02 4.15 MEAN OF MIXING RATIO AT 09 GMT. 3.64 3.19 2.97 4.62 5.74 5.04 3.12 3.02 3.22 2.76 2.60 3.06 3.58 MEAN OF MIXING RATIO AT 15 GMT. 3.29 2.84 3.42 4.18 4.48 4.50 3.32 3.38 3.16 3.07 3.23 3.36 3.52 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -5.0 -4.0 7.0 14.0 17.0 20.0 19.0 15.0 4.0 -1.0 -7.0 -8.0 DAY 17 12 7 2 13 4 31 29 2 25 7 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 24.0 23.0 34.0 39.0 42.0 45.0 41.4 39.0 35.0 24.0 13.0 45.0 DAY 10 28 1 15 10 26 18 3 15 4 26 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.5 1.0 0.0 32.0 2.5 0.0 0.0 0.0 0.0 0.0 4.0 2.0 32.0 DAY 25 22 ** 17 14 ** ** ** ** ** 29 20 MONTHLY TOTAL PRECIPITATION IN MM. 19.5 1.0 0.0 43.0 2.5 0.0 0.0 0.0 0.0 0.0 11.0 7.0 84.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 24.4 54.2 0.0 21.4 NO. OF DAYS WITH PRECIPITATION. 4 1 0 4 1 0 0 0 0 0 4 4 18 NO. OF DAYS PRECIPITATION EQUAL 4 1 0 4 1 0 0 0 0 0 4 4 18 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 1 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 58 47 52 38 35 20 18 25 26 39 60 65 40 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 45 28 26 20 17 11 6 7 9 13 23 41 21 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 50 39 42 31 18 12 7 10 11 20 37 60 28 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 5 1 0 0 0 0 0 0 0 0 12 25 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 23 30 22 1 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 10 29 30 31 31 30 11 0 0 172 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 15 29 13 0 0 0 0 57 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 12 4 0 0 0 0 0 0 0 4 22 64 DATE OF START AND END FREEZING START = 6 NOV. END = 9 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 8.1 4.1 6.8 16.6 25.0 30.2 33.5 30.8 28.2 19.9 8.9 5.6 18.2 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.6 -1.3 1.2 9.6 16.2 21.1 25.2 23.2 20.5 12.2 2.1 0.6 11.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 14.6 9.6 12.4 23.6 33.7 39.3 41.9 38.5 35.8 27.6 15.8 10.5 25.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.0 10.9 11.2 14.0 17.5 18.2 16.7 15.3 15.3 15.4 13.7 9.9 14.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.40 2.83 3.97 4.29 5.42 5.19 4.38 2.86 4.40 ***** 4.05 3.57 ***** MEAN OF MIXING RATIO AT 09 GMT. 2.12 2.79 3.08 2.79 5.94 6.46 7.71 2.55 1.55 ***** 3.86 4.01 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.29 3.20 3.39 3.12 3.38 5.15 3.77 2.87 1.71 ***** 4.07 3.79 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.0 -9.0 -3.0 1.0 11.0 17.0 21.0 17.0 15.0 6.0 -4.0 -2.0 -9.0 DAY 17 17 3 1 1 6 28 15 27 31 14 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 17.0 19.0 32.0 38.0 44.0 44.0 42.0 38.0 35.0 25.0 18.0 44.0 DAY 9 5 1 18 25 29 4 4 9 1 5 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 4.5 17.5 7.0 0.0 0.0 0.0 0.0 0.0 20.0 7.0 7.0 20.0 DAY ** 24 25 5 ** ** ** ** ** 30 29 31 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 9.5 51.5 10.0 0.0 0.0 0.0 0.0 0.0 26.5 13.5 11.0 122.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.0 8.2 0.0 41.8 NO. OF DAYS WITH PRECIPITATION. 0 3 7 3 0 0 0 0 0 2 2 2 19 NO. OF DAYS PRECIPITATION EQUAL 0 3 7 3 0 0 0 0 0 2 2 2 19 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 0 0 0 0 0 0 1 0 0 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 59 59 70 45 32 23 18 13 25 *** 68 69 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 19 37 33 16 16 14 14 6 4 *** 32 47 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 49 51 46 24 14 14 10 8 7 *** 48 54 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 7 0 0 0 0 0 0 0 0 2 0 10 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 14 31 25 15 0 0 0 86 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 4 26 30 31 31 30 10 0 0 162 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 15 31 11 0 0 0 0 57 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 17 11 0 0 0 0 0 0 0 11 17 59 DATE OF START AND END FREEZING START = 14 NOV. END = 17 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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.***** ***** ***** ***** ***** 32.6 ***** 30.3 27.2 20.6 11.6 8.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -2.6 -0.5 6.8 13.5 18.1 24.9 25.8 21.8 18.5 13.7 3.6 1.6 12.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** 40.2 ***** 38.8 35.8 27.4 19.6 14.7 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** 15.3 ***** 17.0 17.3 13.7 16.0 13.1 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.67 2.82 2.87 5.55 6.38 6.99 6.66 6.03 5.68 5.78 4.31 3.77 4.96 MEAN OF MIXING RATIO AT 09 GMT. 3.19 2.69 2.17 5.74 8.51 22.72 7.61 8.66 4.74 3.68 4.56 3.73 6.50 MEAN OF MIXING RATIO AT 15 GMT. 2.99 3.04 1.96 5.41 6.63 19.33 5.87 9.97 4.62 4.53 4.28 3.57 6.02 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -8.0 -2.0 7.0 11.0 20.0 23.0 16.0 14.0 7.0 1.0 -6.0 -8.0 DAY 26 6 1 5 1 2 30 20 18 24 16 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** 43.0 ***** 45.0 39.5 36.0 25.0 24.5 ****** DAY ** ** ** ** ** 20 ** 17 29 4 11 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 0.0 0.0 15.0 10.0 0.0 0.0 0.0 0.0 13.0 2.0 3.0 15.0 DAY 18 ** ** 1 25 ** ** ** ** 26 13 24 MONTHLY TOTAL PRECIPITATION IN MM. 40.0 0.0 0.0 52.5 22.0 0.0 0.0 0.0 0.0 19.0 3.0 8.5 145.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.6 51.4 0.0 21.0 NO. OF DAYS WITH PRECIPITATION. 9 0 0 6 3 0 0 0 0 3 2 5 28 NO. OF DAYS PRECIPITATION EQUAL 9 0 0 6 3 0 0 0 0 3 2 4 27 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 3 1 0 0 0 0 1 0 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 65 65 44 50 42 28 25 22 27 49 63 68 46 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 26 12 24 26 45 15 19 13 18 31 36 27 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 61 40 15 27 23 44 13 27 15 26 42 46 32 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 13 2 0 0 0 0 0 0 0 0 0 6 21 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 2 8 29 31 22 8 0 0 0 100 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** 0 *** 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** 30 *** 31 30 17 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** 23 *** 10 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** 0 *** 1 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 20 1 0 0 0 0 0 0 0 0 7 58 DATE OF START AND END FREEZING START = 13 DEC. END = 1 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 5.5 8.5 13.9 21.6 25.0 30.0 31.7 30.1 26.9 21.0 10.5 9.4 19.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.8 1.9 6.5 13.0 16.4 22.2 24.6 21.8 18.1 12.5 4.6 3.5 11.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.8 15.0 21.2 30.2 33.6 37.9 38.8 38.5 35.7 29.5 16.4 15.2 27.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.6 13.1 14.7 17.2 17.2 15.7 14.2 16.7 17.6 17.0 11.8 11.7 15.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.91 4.07 4.48 5.48 5.78 7.29 7.49 5.94 4.93 5.08 4.23 4.28 5.16 MEAN OF MIXING RATIO AT 09 GMT. 3.12 4.39 4.84 3.53 5.03 4.37 5.31 4.56 5.61 6.55 4.67 4.32 4.69 MEAN OF MIXING RATIO AT 15 GMT. 3.03 4.71 4.84 3.91 4.54 4.19 4.73 4.42 5.19 6.04 4.27 3.96 4.49 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -4.0 2.0 7.0 6.0 14.0 19.0 19.0 13.0 9.0 0.0 -2.0 -11.0 DAY 15 6 21 16 9 3 9 14 29 4 21 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 23.0 22.0 29.0 38.0 39.0 44.0 48.0 41.0 39.0 33.0 26.0 21.0 48.0 DAY 21 18 24 8 20 30 1 27 9 1 1 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 17.0 5.0 3.0 5.0 0.0 0.0 0.0 0.0 0.0 5.5 23.0 23.0 DAY 27 25 7 13 2 ** ** ** ** ** 11 3 MONTHLY TOTAL PRECIPITATION IN MM. 11.5 44.0 11.0 3.0 5.0 0.0 0.0 0.0 0.0 0.0 19.0 41.0 134.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 49.4 5.9 0.0 44.6 NO. OF DAYS WITH PRECIPITATION. 4 5 5 1 1 0 0 0 0 0 7 4 27 NO. OF DAYS PRECIPITATION EQUAL 4 5 5 1 1 0 0 0 0 0 7 4 27 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 3 0 0 0 0 0 0 0 0 0 1 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 70 58 41 35 35 31 27 29 42 62 68 47 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 34 43 32 13 17 10 13 11 15 25 39 39 24 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 45 54 39 18 18 11 12 12 18 31 45 45 29 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 1 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 9 19 28 25 5 0 0 0 86 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 19 26 29 31 31 30 18 0 0 184 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 14 7 0 0 0 0 30 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 21 10 0 0 0 0 0 0 0 0 3 4 38 DATE OF START AND END FREEZING START = 21 NOV. END = 15 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 7.0 9.9 13.0 22.7 22.9 30.2 32.9 28.7 25.8 22.1 11.3 6.9 19.5 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.2 3.4 7.0 14.7 16.0 22.8 25.2 21.2 16.8 13.6 3.1 1.5 12.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.9 16.4 19.0 30.6 29.9 37.7 40.6 36.3 34.8 30.5 19.5 12.3 26.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.7 13.0 12.0 15.9 13.9 14.9 15.4 15.1 18.0 16.9 16.4 10.8 14.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.79 4.13 4.99 5.16 6.87 7.75 6.80 6.23 5.68 4.87 3.66 3.71 5.30 MEAN OF MIXING RATIO AT 09 GMT. 3.83 4.27 4.67 3.53 4.88 5.60 6.27 5.59 3.72 4.46 4.38 4.42 4.63 MEAN OF MIXING RATIO AT 15 GMT. 3.64 5.04 4.11 3.81 5.45 5.50 6.14 5.42 4.10 4.73 3.53 3.97 4.62 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.0 0.0 -2.0 7.0 9.0 18.0 22.0 15.0 12.0 9.0 -4.0 -3.0 -4.0 DAY 28 1 4 17 1 4 27 31 29 29 19 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 22.0 21.0 27.0 36.0 37.0 41.0 45.0 39.5 41.0 35.0 30.0 18.0 45.0 DAY 6 17 26 4 23 20 8 1 9 5 2 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 17.0 4.0 15.0 2.0 53.0 7.0 0.0 0.0 0.0 0.0 1.0 10.0 53.0 DAY 24 18 16 14 8 4 ** ** ** ** 5 16 MONTHLY TOTAL PRECIPITATION IN MM. 25.0 8.0 33.0 2.0 67.0 7.0 0.0 0.0 0.0 0.0 1.0 22.0 165.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 40.0 46.1 0.0 13.9 NO. OF DAYS WITH PRECIPITATION. 4 3 5 1 3 1 0 0 0 0 1 4 22 NO. OF DAYS PRECIPITATION EQUAL 4 3 5 1 3 1 0 0 0 0 1 4 22 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 2 0 1 0 0 0 0 0 0 1 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 68 60 37 48 36 27 30 33 40 57 69 48 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 40 37 34 13 21 14 13 14 11 16 31 48 24 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 50 58 38 17 27 16 15 17 15 23 34 53 30 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 2 0 3 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 4 1 27 31 16 4 0 0 0 83 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 23 21 30 31 31 26 22 2 0 186 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 21 0 3 0 0 0 31 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 11 1 2 0 0 0 0 0 0 0 12 10 36 DATE OF START AND END FREEZING START = 17 NOV. END = 5 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 5.8 7.8 13.1 22.1 26.6 31.0 32.1 31.3 26.2 20.2 15.0 9.1 20.0 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.1 1.5 6.2 14.0 18.6 22.8 24.0 23.2 17.4 12.6 7.8 2.4 12.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.5 14.0 20.0 30.1 34.7 39.4 40.2 39.5 35.0 27.7 22.2 15.8 27.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.4 12.5 13.8 16.1 16.1 16.6 16.2 16.3 17.6 15.1 14.4 13.4 15.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.34 3.87 5.05 6.27 8.27 5.27 6.58 5.62 5.04 5.77 4.95 3.72 5.31 MEAN OF MIXING RATIO AT 09 GMT. 3.55 4.19 4.41 4.98 5.97 7.22 5.02 6.48 5.94 5.68 5.22 3.86 5.21 MEAN OF MIXING RATIO AT 15 GMT. 3.51 3.63 4.60 5.12 5.38 6.01 5.53 5.29 4.85 5.32 4.69 3.55 4.79 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.0 -7.0 2.0 6.0 13.0 18.0 21.0 19.0 13.0 8.0 3.0 -2.0 -7.0 DAY 9 4 5 19 18 2 2 31 24 31 26 16 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.0 19.0 29.0 36.0 40.0 44.0 43.0 43.0 39.0 38.0 26.0 22.0 44.0 DAY 13 18 30 23 23 8 31 20 7 4 10 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 7.0 1.5 3.0 6.5 0.0 0.0 0.0 0.0 1.0 1.5 3.5 8.0 DAY 23 25 27 4 17 ** ** ** ** 26 25 21 MONTHLY TOTAL PRECIPITATION IN MM. 16.0 13.0 3.5 3.0 8.5 0.0 0.0 0.0 0.0 1.5 3.0 5.5 54.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 60.2 21.3 0.0 18.5 NO. OF DAYS WITH PRECIPITATION. 3 4 3 1 2 0 0 0 0 2 3 3 21 NO. OF DAYS PRECIPITATION EQUAL 3 4 3 1 2 0 0 0 0 1 2 3 19 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 70 61 47 46 23 27 25 30 47 54 63 47 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 41 40 31 17 16 15 11 14 16 24 31 34 24 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 52 44 39 25 18 15 14 14 17 30 36 42 29 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 4 0 0 0 0 0 0 0 0 0 0 5 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 8 24 31 28 5 1 0 0 97 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 18 30 29 31 31 30 9 0 0 178 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 16 24 16 0 0 0 0 58 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 7 0 0 0 0 0 0 0 0 0 8 32 DATE OF START AND END FREEZING START = 15 DEC. END = 23 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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.***** 9.2 15.8 21.1 25.3 28.6 32.2 30.4 25.7 19.1 14.9 9.5 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 0.3 2.0 8.1 13.5 16.0 20.2 25.0 22.7 17.6 11.8 7.2 2.6 12.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 16.3 23.4 28.2 34.6 37.0 39.4 38.0 33.8 26.5 22.7 16.5 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 14.3 15.3 14.7 18.6 16.8 14.4 15.3 16.2 14.7 15.5 13.9 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.22 3.44 3.83 5.48 5.11 4.52 4.93 4.53 4.28 4.74 4.49 3.68 4.35 MEAN OF MIXING RATIO AT 09 GMT. 3.86 3.92 3.89 4.72 7.12 7.04 7.85 4.62 5.16 4.19 3.99 3.20 4.96 MEAN OF MIXING RATIO AT 15 GMT. 3.57 3.78 3.86 4.15 5.14 5.19 6.33 4.08 4.33 4.05 3.78 2.58 4.24 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.0 -2.0 3.0 5.0 12.0 15.0 20.0 20.0 10.0 3.0 0.0 -1.0 -3.0 DAY 10 3 1 2 4 7 31 24 26 31 24 16 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 23.0 30.0 36.0 41.0 42.0 45.0 42.0 41.0 32.0 27.0 21.0 ****** DAY ** 19 21 23 27 19 6 20 19 5 2 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.0 10.0 7.5 3.5 0.0 2.0 0.5 0.0 0.0 3.0 4.0 0.5 10.0 DAY 4 11 28 17 ** 27 22 ** ** 14 23 26 MONTHLY TOTAL PRECIPITATION IN MM. 7.5 17.0 20.0 4.0 0.0 2.0 0.5 0.0 0.0 3.0 4.0 0.5 58.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 76.1 10.3 0.9 12.8 NO. OF DAYS WITH PRECIPITATION. 3 3 3 2 0 1 1 0 0 1 1 1 16 NO. OF DAYS PRECIPITATION EQUAL 3 3 3 1 0 1 0 0 0 1 1 0 13 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 67 62 50 46 35 24 21 21 27 43 51 63 43 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 39 33 23 20 20 17 17 11 15 19 22 27 22 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 49 41 29 22 18 16 16 12 17 25 30 31 26 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 4 14 30 26 8 0 0 0 82 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 3 14 28 30 31 31 26 7 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 2 2 17 11 2 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 1 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 6 0 0 0 0 0 0 0 0 2 4 27 DATE OF START AND END FREEZING START = 24 NOV. END = 24 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 6.5 7.0 12.2 21.9 27.0 31.4 31.5 30.9 26.2 19.9 9.6 4.8 19.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.3 0.0 4.4 13.4 18.9 22.5 22.2 22.9 17.5 12.3 2.3 -1.5 11.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.3 13.9 20.0 30.3 35.1 40.3 40.7 38.9 34.9 27.5 16.8 11.0 26.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.6 13.9 15.6 16.9 16.2 17.8 18.5 16.0 17.4 15.2 14.5 12.5 15.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.13 3.22 3.89 4.96 5.43 5.76 6.19 6.10 5.11 4.71 3.90 3.53 4.66 MEAN OF MIXING RATIO AT 09 GMT. 3.41 2.83 4.14 3.85 6.53 5.58 5.26 4.87 4.44 4.11 4.29 3.93 4.44 MEAN OF MIXING RATIO AT 15 GMT. 2.88 2.50 3.69 3.71 5.29 5.40 5.27 5.03 4.37 4.52 4.23 3.78 4.22 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.5 -5.0 -1.0 5.0 15.0 17.0 19.0 16.0 13.0 5.0 -2.0 -6.0 -6.0 DAY 21 20 8 1 10 3 3 29 27 26 30 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.0 19.0 27.0 37.0 40.0 45.0 45.0 46.0 38.0 34.0 25.0 16.0 46.0 DAY 10 5 25 27 19 12 29 4 4 7 5 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.5 24.0 7.5 0.0 2.0 0.0 0.0 0.0 0.0 1.0 3.5 17.5 24.0 DAY 17 25 29 ** 25 ** ** ** ** 3 11 16 MONTHLY TOTAL PRECIPITATION IN MM. 18.5 31.0 17.5 0.0 2.0 0.0 0.0 0.0 0.0 1.0 5.5 25.0 100.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 66.7 2.0 0.0 31.3 NO. OF DAYS WITH PRECIPITATION. 4 5 4 0 1 0 0 0 0 1 2 2 19 NO. OF DAYS PRECIPITATION EQUAL 4 4 4 0 1 0 0 0 0 1 2 2 18 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 0 0 0 0 0 0 1 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 66 67 61 40 31 26 27 28 33 41 66 81 47 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 37 30 30 15 18 12 11 11 13 18 37 48 23 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 39 34 32 18 19 14 13 14 15 26 46 58 27 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 1 0 0 0 0 0 0 0 0 0 9 12 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 10 23 23 24 4 0 0 0 84 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 17 30 30 31 31 30 12 0 0 181 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 19 19 10 0 0 0 0 49 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 1 3 0 0 0 0 5 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 20 16 1 0 0 0 0 0 0 0 7 23 67 DATE OF START AND END FREEZING START = 16 NOV. END = 8 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 3.8 7.3 11.0 18.2 27.0 31.4 33.9 32.5 27.6 20.2 17.4 8.2 19.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.8 0.0 4.2 11.8 19.8 23.0 25.3 24.9 19.8 12.2 10.6 2.3 12.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.0 14.7 17.7 24.5 34.2 39.8 42.5 40.1 35.3 28.1 24.2 14.0 27.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.8 14.7 13.5 12.7 14.4 16.8 17.2 15.2 15.5 15.9 13.6 11.7 14.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.15 3.02 3.59 5.42 6.03 5.27 5.73 5.88 5.68 3.93 3.97 3.27 4.58 MEAN OF MIXING RATIO AT 09 GMT. 3.72 2.47 2.88 4.24 4.77 4.57 4.65 5.08 4.94 4.29 3.58 3.58 4.06 MEAN OF MIXING RATIO AT 15 GMT. 3.71 2.77 3.13 5.16 4.94 4.88 5.07 5.59 4.85 3.79 3.49 3.33 4.23 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -4.0 0.0 6.0 13.0 19.0 21.0 21.0 14.0 6.0 7.5 -6.0 -6.0 DAY 13 3 12 4 1 1 15 27 22 21 29 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.5 23.0 25.0 32.0 38.0 44.0 45.0 45.0 42.0 36.0 29.0 24.0 45.0 DAY 2 21 5 20 16 20 6 16 8 2 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.5 0.0 12.0 18.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 4.0 18.0 DAY 21 ** 6 2 3 ** ** ** ** ** ** 17 MONTHLY TOTAL PRECIPITATION IN MM. 23.0 0.0 16.0 40.5 2.0 0.0 0.0 0.0 0.0 0.0 0.0 11.0 92.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 42.2 45.9 0.0 11.9 NO. OF DAYS WITH PRECIPITATION. 4 0 2 7 2 0 0 0 0 0 0 3 18 NO. OF DAYS PRECIPITATION EQUAL 4 0 2 7 2 0 0 0 0 0 0 3 18 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 2 0 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 64 54 53 33 23 22 25 32 37 43 60 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 24 24 25 15 11 9 11 14 18 20 38 22 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 35 32 35 17 12 11 14 17 22 24 44 27 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 11 1 0 0 0 0 0 0 0 0 0 9 21 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 15 27 31 30 13 0 0 0 116 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 6 28 30 31 31 30 8 0 0 164 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 16 27 19 5 0 0 0 67 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 6 1 0 0 0 0 7 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 20 1 0 0 0 0 0 0 0 0 17 60 DATE OF START AND END FREEZING START = 15 DEC. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 5.9 4.6 14.7 20.4 24.3 30.3 32.4 33.1 27.1 18.4 14.7 4.1 19.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.6 -1.8 8.2 12.3 17.2 22.5 25.2 25.0 19.0 9.8 7.4 -2.0 11.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.5 11.5 21.3 28.5 31.2 38.2 39.6 41.2 35.3 27.0 21.9 10.1 26.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.1 13.3 13.1 16.2 14.0 15.7 14.4 16.2 16.3 17.2 14.5 12.1 14.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.13 3.09 4.85 4.09 5.14 5.78 6.51 6.42 6.74 3.89 4.82 3.12 4.80 MEAN OF MIXING RATIO AT 09 GMT. 3.73 3.26 4.67 3.16 4.07 4.07 4.29 6.00 4.91 3.91 4.45 2.81 4.11 MEAN OF MIXING RATIO AT 15 GMT. 3.36 3.34 4.84 3.73 4.12 4.32 4.55 5.86 4.47 3.79 4.52 2.78 4.14 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.5 -7.5 2.0 5.0 10.5 18.8 22.5 23.0 9.5 4.0 4.0 -7.0 -7.5 DAY 6 20 1 5 8 10 5 2 30 24 27 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 24.0 27.0 34.0 40.0 42.5 41.5 45.0 41.0 33.0 27.0 16.0 45.0 DAY 7 9 8 10 29 21 27 14 1 5 3 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.5 16.0 9.0 1.5 3.0 0.0 0.0 0.0 0.0 1.0 2.0 0.0 16.5 DAY 16 24 23 17 10 ** ** ** ** 8 16 ** MONTHLY TOTAL PRECIPITATION IN MM. 20.5 16.0 22.5 1.5 9.5 0.0 0.0 0.0 0.0 1.0 2.0 0.0 73.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 80.8 15.1 0.0 4.1 NO. OF DAYS WITH PRECIPITATION. 4 1 6 1 4 0 0 0 0 1 1 0 18 NO. OF DAYS PRECIPITATION EQUAL 4 1 6 1 4 0 0 0 0 1 1 0 18 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 0 0 0 0 0 0 0 0 0 0 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 72 56 36 33 26 26 26 39 41 61 74 47 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 42 41 31 14 15 10 10 13 14 18 30 38 23 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 50 49 38 20 18 12 11 14 15 24 39 48 28 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 11 0 0 0 0 0 0 0 0 0 7 23 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 4 22 31 31 8 0 0 0 97 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 11 21 30 31 31 29 9 0 0 162 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 11 14 28 5 0 0 0 59 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 2 0 0 0 0 2 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 21 21 0 0 0 0 0 0 0 0 0 22 64 DATE OF START AND END FREEZING START = 10 DEC. END = 28 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 5.7 9.7 10.6 19.3 23.3 31.9 32.7 26.5 26.5 18.4 13.7 9.0 18.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.9 1.6 3.5 10.1 14.0 23.5 23.8 16.9 17.7 10.1 6.5 2.4 10.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.3 17.8 17.7 28.5 32.6 40.4 41.6 36.2 35.4 26.7 20.9 15.5 27.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.2 16.2 14.2 18.4 18.6 16.9 17.8 19.3 17.7 16.6 14.4 13.1 16.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.89 3.44 4.08 4.86 3.84 5.69 6.96 8.07 6.45 4.75 5.06 4.09 5.01 MEAN OF MIXING RATIO AT 09 GMT. 3.81 2.23 2.92 3.53 2.95 4.32 6.79 5.58 4.93 4.85 4.46 4.01 4.20 MEAN OF MIXING RATIO AT 15 GMT. 3.83 2.36 2.95 3.50 2.75 3.37 5.98 5.29 4.69 4.44 3.90 3.80 3.90 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -3.0 -3.0 5.0 7.0 18.5 19.0 12.0 14.5 6.0 4.0 -3.0 -5.0 DAY 7 7 6 18 24 14 17 31 15 26 20 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 19.0 24.5 28.0 35.0 38.5 43.5 45.0 39.5 39.0 37.0 26.0 24.0 45.0 DAY 31 15 20 21 31 24 26 6 4 1 4 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 2.5 2.5 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 2.0 2.5 DAY 2 1 4 ** ** ** ** ** ** ** 14 23 MONTHLY TOTAL PRECIPITATION IN MM. 4.5 3.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 2.0 12.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 68.0 0.0 0.0 32.0 NO. OF DAYS WITH PRECIPITATION. 3 2 1 0 0 0 0 0 0 0 1 1 8 NO. OF DAYS PRECIPITATION EQUAL 3 1 1 0 0 0 0 0 0 0 1 1 7 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 58 64 45 31 23 28 40 37 50 64 66 48 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 41 19 25 15 10 10 14 15 14 22 29 39 21 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 53 26 29 19 11 9 14 16 15 24 30 46 24 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 0 26 30 2 5 0 0 0 63 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 12 28 30 31 31 30 9 0 0 171 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 25 30 0 0 0 0 0 55 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 7 13 0 0 0 0 0 0 0 0 12 58 DATE OF START AND END FREEZING START = 14 DEC. END = 15 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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.***** 9.0 10.1 19.7 26.3 29.8 31.6 29.1 25.8 22.3 12.6 6.4 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** 3.8 5.3 13.9 19.4 22.4 24.4 22.1 17.8 14.7 7.0 0.8 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 14.1 14.9 25.5 33.2 37.3 38.8 36.2 33.8 29.9 18.2 12.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 10.3 9.6 11.6 13.8 14.9 14.4 14.1 16.0 15.2 11.2 11.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 4.17 3.81 6.40 5.76 6.42 6.75 6.01 4.45 4.71 4.19 3.60 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 4.22 3.49 5.21 4.82 5.69 5.02 5.20 4.12 6.09 4.19 4.32 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 4.59 3.85 5.74 4.84 5.31 4.71 5.17 4.36 5.06 4.24 3.90 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -0.3 -1.8 9.6 14.0 19.2 19.0 18.4 14.0 7.4 0.0 -8.7 ****** DAY ** 3 17 1 1 10 23 12 15 31 25 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 22.0 24.3 31.0 39.0 40.5 42.5 40.0 38.4 36.7 29.3 19.4 ****** DAY ** 28 1 17 25 13 26 23 26 5 3 1 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 17.0 9.0 3.0 0.2 0.0 0.3 0.0 0.0 0.0 2.3 13.0 ****** DAY ** 16 8 11 5 ** 22 ** ** ** 23 20 MONTHLY TOTAL PRECIPITATION IN MM. ***** 34.9 25.5 12.0 0.5 0.0 0.3 0.0 0.0 0.0 4.0 18.4 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 63.2 13.1 0.3 23.4 NO. OF DAYS WITH PRECIPITATION. *** 6 8 9 3 0 1 0 0 0 6 7 *** NO. OF DAYS PRECIPITATION EQUAL *** 6 4 6 0 0 0 0 0 0 1 3 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 1 0 0 0 0 0 0 0 0 0 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 71 58 55 33 29 28 30 29 38 56 68 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 46 35 28 16 16 12 15 13 24 34 49 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 53 40 32 17 14 12 15 16 24 41 51 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 6 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 0 0 10 27 29 20 2 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 3 26 30 31 30 29 17 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 2 10 1 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. *** 1 3 0 0 0 0 0 0 0 1 12 *** DATE OF START AND END FREEZING START = 25 NOV. END = 18 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 7.8 10.6 14.7 21.0 27.4 30.5 31.7 31.7 27.3 17.0 14.4 8.7 20.2 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.6 4.0 8.9 14.5 20.5 23.1 24.8 24.4 20.1 10.9 7.2 2.0 13.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 15.1 17.1 20.5 27.4 34.2 37.9 38.5 38.9 34.6 23.1 21.5 15.4 27.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.5 13.1 11.6 12.9 13.7 14.8 13.7 14.5 14.5 12.2 14.3 13.4 13.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.81 3.47 4.46 5.41 6.31 5.17 8.47 7.45 6.28 4.83 3.31 2.86 5.07 MEAN OF MIXING RATIO AT 09 GMT. 3.01 3.42 4.24 4.49 5.82 4.03 9.19 6.40 6.79 4.92 3.22 3.18 4.89 MEAN OF MIXING RATIO AT 15 GMT. 3.02 3.68 4.54 5.11 5.85 3.78 9.64 6.57 6.79 4.96 3.45 3.05 5.04 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.8 -1.3 2.2 5.6 11.8 20.6 19.4 21.2 15.8 4.6 -1.8 -5.2 -5.2 DAY 14 12 22 6 7 1 5 25 25 18 30 4 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.6 24.4 26.2 36.2 39.4 41.8 43.3 41.7 41.2 35.2 29.8 20.8 43.3 DAY 31 28 2 19 12 18 7 16 6 4 6 20 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 6.0 52.0 18.0 1.0 0.0 0.3 0.0 0.0 11.0 0.0 0.0 52.0 DAY ** 21 31 5 28 ** 26 ** ** 27 ** ** MONTHLY TOTAL PRECIPITATION IN MM. 0.0 8.5 68.8 26.7 2.0 0.0 0.3 0.0 0.0 14.0 0.0 0.0 120.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 64.3 23.9 0.2 11.6 NO. OF DAYS WITH PRECIPITATION. 0 5 8 6 4 0 1 0 0 3 0 0 27 NO. OF DAYS PRECIPITATION EQUAL 0 2 5 5 1 0 0 0 0 3 0 0 16 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 1 0 0 0 0 0 1 0 0 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 58 57 53 47 34 23 36 32 38 50 42 53 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 30 30 31 24 19 10 23 15 22 29 21 30 24 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 36 38 36 29 20 10 24 16 23 34 29 36 28 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 5 12 29 30 31 10 1 0 0 118 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 14 26 30 31 31 30 8 0 0 170 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 12 7 2 0 0 0 27 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 19 5 0 0 0 0 0 0 0 0 1 9 34 DATE OF START AND END FREEZING START = 30 NOV. END = 14 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 6.5 8.8 14.8 20.5 26.8 31.3 33.4 31.3 27.5 21.3 14.8 9.9 20.6 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.5 3.2 8.6 14.3 19.4 24.1 26.5 24.3 20.0 13.8 7.4 2.9 13.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.5 14.4 21.0 26.8 34.2 38.6 40.4 38.3 35.0 28.8 22.3 16.9 27.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.0 11.2 12.4 12.5 14.8 14.5 13.9 14.0 15.0 15.0 14.9 14.0 13.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.89 3.74 4.35 5.68 5.20 6.56 8.41 6.87 5.29 4.16 3.14 2.95 4.94 MEAN OF MIXING RATIO AT 09 GMT. 2.73 3.98 4.12 4.93 4.15 5.85 7.42 5.63 4.37 4.31 3.69 3.21 4.53 MEAN OF MIXING RATIO AT 15 GMT. 3.07 4.12 4.34 5.12 3.66 6.36 6.92 5.77 4.31 4.27 3.45 3.15 4.54 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.8 -1.6 2.6 5.4 15.4 21.0 22.5 19.4 15.6 9.4 -1.6 -7.2 -7.2 DAY 3 8 25 3 7 28 1 27 30 3 16 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.4 25.8 30.0 34.0 42.0 42.8 44.4 43.0 41.8 32.0 29.8 22.2 44.4 DAY 29 2 21 20 28 15 12 4 12 20 4 12 24 HOUR MAXIMUM PRECIPITATION IN MM. 2.0 22.0 24.0 1.0 0.0 0.0 0.5 0.2 0.2 0.3 0.3 0.6 24.0 DAY 7 3 24 26 ** ** 28 25 3 16 15 17 MONTHLY TOTAL PRECIPITATION IN MM. 4.5 44.9 58.5 2.7 0.0 0.0 0.6 0.2 0.2 0.3 0.3 1.0 113.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 95.3 2.4 0.9 1.4 NO. OF DAYS WITH PRECIPITATION. 5 8 7 3 0 0 2 1 1 1 1 2 31 NO. OF DAYS PRECIPITATION EQUAL 1 5 5 2 0 0 0 0 0 0 0 0 13 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 3 0 0 0 0 0 0 0 0 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 58 67 53 46 30 28 32 31 31 36 39 49 42 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 31 47 31 23 14 14 17 14 13 18 21 27 23 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 42 51 35 27 12 15 15 15 14 22 26 34 26 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 2 5 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 2 7 30 31 27 14 0 0 0 111 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 1 11 29 30 31 31 26 14 0 0 173 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 9 19 11 3 0 0 0 43 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 3 0 0 0 0 0 0 0 0 2 4 24 DATE OF START AND END FREEZING START = 16 NOV. END = 8 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 3.4 4.7 14.3 20.8 24.9 32.1 33.7 30.9 26.7 22.2 14.6 9.6 19.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.1 -1.2 8.2 13.9 17.3 24.1 27.0 23.3 18.5 14.1 7.6 2.9 12.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.0 10.6 20.4 27.8 32.4 40.0 40.5 38.5 34.9 30.2 21.6 16.5 26.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.1 11.8 12.2 13.9 15.1 15.9 13.5 15.2 16.4 16.1 14.0 13.6 14.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.79 2.89 4.27 3.66 5.17 5.37 7.34 5.82 4.65 3.99 4.14 3.38 4.46 MEAN OF MIXING RATIO AT 09 GMT. 2.78 3.05 3.81 3.31 5.63 4.62 6.33 5.14 4.66 5.07 4.38 3.84 4.39 MEAN OF MIXING RATIO AT 15 GMT. 2.82 3.18 4.12 3.42 5.36 4.18 6.13 5.06 4.47 4.77 4.32 3.60 4.29 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -7.4 3.4 2.8 8.2 19.0 24.0 18.6 9.8 8.8 2.4 -0.6 -8.0 DAY 5 4 13 1 1 2 26 1 24 25 24 9 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 19.2 26.6 33.0 41.0 43.4 45.8 42.6 40.0 36.6 26.6 25.4 45.8 DAY 2 28 26 15 26 27 8 4 13 9 29 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 12.2 2.0 0.4 0.8 0.0 0.0 0.0 0.0 0.0 2.0 1.5 12.2 DAY 3 19 16 30 8 ** ** ** ** ** 9 15 MONTHLY TOTAL PRECIPITATION IN MM. 10.9 25.3 4.6 0.4 0.9 0.0 0.0 0.0 0.0 0.0 5.3 1.8 49.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 82.9 2.6 0.0 14.4 NO. OF DAYS WITH PRECIPITATION. 4 6 5 1 2 0 0 0 0 0 4 2 24 NO. OF DAYS PRECIPITATION EQUAL 2 4 2 0 0 0 0 0 0 0 3 1 12 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 65 53 31 32 23 27 27 29 34 51 58 42 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 42 40 26 15 19 11 13 12 14 19 27 34 23 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 48 46 32 16 20 10 13 13 16 23 33 40 26 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 9 10 0 0 0 0 0 0 0 0 0 0 19 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 8 28 31 29 12 0 0 0 109 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 10 21 30 31 31 25 17 0 0 165 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 19 16 7 1 0 0 0 46 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 25 18 0 0 0 0 0 0 0 0 0 10 53 DATE OF START AND END FREEZING START = 8 DEC. END = 27 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 5.3 8.0 13.6 20.3 27.8 32.3 32.6 32.7 28.9 20.9 15.6 8.5 20.5 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.4 2.2 7.0 13.4 20.0 24.5 25.7 25.0 20.7 13.3 7.5 2.4 13.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.1 13.8 20.2 27.2 35.6 40.2 39.6 40.4 37.1 28.5 23.6 14.7 27.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.7 11.6 13.2 13.8 15.6 15.7 13.9 15.4 16.4 15.2 16.1 12.3 14.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.63 3.36 3.47 4.21 5.54 5.66 7.49 6.77 4.80 4.17 3.41 3.14 4.64 MEAN OF MIXING RATIO AT 09 GMT. 3.74 3.05 3.27 4.25 4.82 5.71 7.35 6.47 5.50 4.39 4.29 3.58 4.70 MEAN OF MIXING RATIO AT 15 GMT. 3.89 3.60 3.39 4.02 4.37 5.63 7.31 6.02 5.49 4.38 3.83 3.42 4.61 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.2 -2.0 -2.2 7.0 14.6 19.0 21.6 22.0 16.4 6.6 3.2 -4.4 -4.4 DAY 13 8 21 9 15 3 13 15 19 20 25 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.4 23.2 27.6 35.2 41.0 44.8 42.2 45.0 42.2 36.2 30.2 22.0 45.0 DAY 1 20 13 27 25 29 28 10 1 1 10 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 5.0 1.0 3.8 0.3 0.0 0.0 0.0 0.0 0.0 0.0 12.0 12.0 DAY 2 16 30 11 13 ** ** ** ** ** ** 26 MONTHLY TOTAL PRECIPITATION IN MM. 26.2 13.4 2.3 5.9 0.3 0.0 0.0 0.0 0.0 0.0 0.0 12.0 60.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 69.7 10.3 0.0 20.0 NO. OF DAYS WITH PRECIPITATION. 7 5 3 3 1 0 0 0 0 0 0 1 20 NO. OF DAYS PRECIPITATION EQUAL 5 5 1 2 0 0 0 0 0 0 0 1 14 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 1 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 65 46 38 29 22 30 29 27 37 44 60 42 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 35 24 21 14 13 17 15 15 19 24 36 24 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 60 44 27 20 13 13 17 14 17 23 29 45 27 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 2 12 26 31 31 15 0 0 0 117 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 9 28 30 31 31 30 10 2 0 171 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 18 15 18 4 0 0 0 57 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. 13 5 3 0 0 0 0 0 0 0 0 5 26 DATE OF START AND END FREEZING START = 27 DEC. END = 22 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 6.5 7.2 13.6 21.6 24.7 30.1 32.4 30.9 26.8 20.4 13.9 8.5 19.7 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.0 1.8 8.5 14.8 17.9 22.6 25.1 23.3 19.0 13.3 7.1 3.3 13.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.1 12.6 18.7 28.4 31.5 37.5 39.7 38.5 34.5 27.5 20.7 13.7 26.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.1 10.8 10.2 13.6 13.6 14.9 14.6 15.2 15.5 14.2 13.6 10.4 13.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.31 3.10 5.31 4.59 5.87 6.03 7.12 6.92 5.59 4.98 3.92 3.84 5.13 MEAN OF MIXING RATIO AT 09 GMT. 4.31 3.13 5.06 4.03 5.06 5.25 6.97 7.06 5.70 5.55 4.54 4.24 5.07 MEAN OF MIXING RATIO AT 15 GMT. 4.57 3.54 5.10 4.22 4.90 4.70 6.97 6.86 5.30 5.35 4.34 4.25 5.01 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.0 -6.6 1.6 8.0 10.4 19.8 20.4 18.6 11.0 9.4 1.0 -5.0 -6.6 DAY 9 14 12 14 5 2 15 24 28 31 29 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.4 19.8 26.0 35.0 39.4 42.4 44.6 44.2 42.0 31.0 29.6 23.0 44.6 DAY 31 27 25 22 30 28 7 7 8 27 4 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.2 6.0 6.2 1.0 25.0 0.0 0.0 0.0 0.0 2.0 0.9 12.0 25.0 DAY 3 22 6 5 5 ** ** ** ** 17 16 22 MONTHLY TOTAL PRECIPITATION IN MM. 21.0 6.6 13.3 1.3 31.4 0.0 0.0 0.0 0.0 4.0 0.9 23.0 101.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 40.3 32.2 0.0 27.5 NO. OF DAYS WITH PRECIPITATION. 9 3 10 4 4 0 0 0 0 3 1 7 41 NO. OF DAYS PRECIPITATION EQUAL 5 1 4 1 3 0 0 0 0 3 0 3 20 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 1 0 0 0 0 0 0 1 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 60 66 37 39 29 30 32 36 46 54 65 48 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 35 39 18 20 14 16 17 18 25 31 46 28 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 44 40 19 19 12 16 17 18 28 37 54 31 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 3 0 0 0 0 0 0 0 0 0 1 4 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 7 25 30 27 11 0 0 0 101 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 12 19 30 30 31 23 3 0 0 148 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 14 6 3 0 0 0 30 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 11 0 0 0 0 0 0 0 0 0 10 31 DATE OF START AND END FREEZING START = 18 DEC. END = 25 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 MET. MEAN AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.1 8.0 10.0 19.2 22.2 30.5 33.3 28.8 24.9 19.3 14.8 8.5 18.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.7 1.5 3.9 12.5 16.2 23.3 26.1 21.8 17.1 11.4 7.6 4.0 12.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.9 14.4 16.1 25.8 28.2 37.8 40.4 35.9 32.7 27.3 22.1 13.0 25.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.6 12.9 12.2 13.3 12.0 14.5 14.3 14.1 15.6 15.9 14.5 9.0 13.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.25 2.68 3.42 5.40 6.92 7.51 7.25 7.89 5.06 3.92 3.73 4.36 5.12 MEAN OF MIXING RATIO AT 09 GMT. 3.28 2.62 3.24 4.74 5.99 6.47 6.39 8.03 4.80 4.38 4.22 4.68 4.90 MEAN OF MIXING RATIO AT 15 GMT. 3.38 2.74 3.19 4.68 5.86 5.96 5.99 8.34 4.55 4.26 3.85 4.92 4.81 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.5 -4.0 -2.6 7.2 7.2 19.6 22.8 16.0 10.5 7.5 -2.5 -4.0 -6.5 DAY 29 13 13 7 2 14 26 31 13 30 29 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.8 25.2 25.4 31.6 36.7 42.3 44.2 40.4 38.4 31.8 27.4 19.2 44.2 DAY 16 24 30 22 31 24 2 26 25 11 7 17 24 HOUR MAXIMUM PRECIPITATION IN MM. 3.6 0.2 3.0 16.9 13.2 1.0 0.0 0.0 0.0 0.0 0.0 11.3 16.9 DAY 25 27 10 7 12 3 ** ** ** ** ** 4 MONTHLY TOTAL PRECIPITATION IN MM. 6.2 0.2 7.7 19.3 30.8 1.9 0.0 0.0 0.0 0.0 0.0 25.7 91.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 15.4 56.6 0.0 28.0 NO. OF DAYS WITH PRECIPITATION. 9 1 6 5 11 3 0 0 0 0 0 9 44 NO. OF DAYS PRECIPITATION EQUAL 2 0 2 2 6 1 0 0 0 0 0 5 18 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 1 1 0 0 0 0 0 0 1 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 52 55 50 53 34 29 42 33 39 44 71 48 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 48 27 30 26 29 17 14 22 16 20 26 51 27 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 56 33 31 27 29 16 13 24 17 24 29 62 30 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 1 0 0 0 0 0 0 0 0 0 1 7 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 5 28 31 20 3 0 0 0 88 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 5 13 30 31 29 25 8 0 0 141 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 10 17 2 0 0 0 0 29 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. 18 12 7 0 0 0 0 0 0 0 4 3 44 DATE OF START AND END FREEZING START = 27 NOV. END = 13 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 4.6 8.9 12.3 20.8 25.9 30.5 32.0 30.6 27.4 18.1 12.0 8.0 19.3 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.2 3.7 6.5 14.3 19.8 22.9 25.5 23.7 19.4 11.1 5.9 1.5 12.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.0 14.0 18.1 27.4 31.9 38.1 38.5 37.5 35.5 25.2 18.1 14.4 25.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.8 10.3 11.6 13.1 12.1 15.2 13.0 13.8 16.1 14.1 12.2 12.9 12.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.48 4.74 4.20 5.39 6.11 6.46 7.53 7.03 5.22 3.48 3.90 3.20 5.06 MEAN OF MIXING RATIO AT 09 GMT. 3.72 4.96 3.46 4.58 5.12 5.33 5.65 6.09 5.27 3.77 4.43 3.73 4.68 MEAN OF MIXING RATIO AT 15 GMT. 3.88 5.27 3.47 4.98 5.17 5.05 5.21 5.68 5.24 3.81 3.92 3.40 4.59 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.6 -3.4 0.9 10.0 12.0 18.8 22.0 18.8 12.2 3.8 -2.2 -4.0 -4.0 DAY 21 17 24 1 9 23 24 26 19 9 30 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 19.8 21.4 25.6 35.2 39.0 44.6 41.6 42.0 39.8 36.0 28.0 18.8 44.6 DAY 29 28 8 20 27 18 4 22 14 1 2 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 16.4 2.0 13.0 19.9 0.8 0.0 0.0 0.0 0.0 2.0 1.0 19.9 DAY 14 23 9 27 7 3 ** ** ** ** 5 3 MONTHLY TOTAL PRECIPITATION IN MM. 22.4 35.4 2.9 22.5 24.2 0.8 0.0 0.0 0.0 0.0 2.1 2.1 112.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 54.0 42.3 0.0 3.7 NO. OF DAYS WITH PRECIPITATION. 5 7 5 4 5 1 0 0 0 0 2 4 33 NO. OF DAYS PRECIPITATION EQUAL 4 6 1 3 2 0 0 0 0 0 1 1 18 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 0 1 1 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 79 58 45 36 31 31 33 31 35 55 63 48 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 53 29 22 19 14 14 16 15 19 34 37 27 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 60 30 28 20 13 13 15 17 22 37 41 30 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 13 24 31 28 13 0 0 0 109 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 6 22 30 31 31 30 3 0 0 153 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 11 10 4 0 0 0 0 25 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 3 0 0 0 0 0 0 0 0 4 8 32 DATE OF START AND END FREEZING START = 16 NOV. END = 19 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 7.8 8.5 15.5 21.2 26.1 31.2 33.4 32.6 23.7 19.8 16.4 6.5 20.2 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.6 2.0 9.0 14.5 19.4 23.8 26.1 25.2 16.6 13.4 10.1 0.2 13.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.9 15.0 22.0 28.0 32.8 38.6 40.6 40.0 30.8 26.2 22.6 12.7 26.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.3 13.0 13.0 13.5 13.4 14.8 14.5 14.8 14.2 12.8 12.5 12.5 13.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.35 2.64 4.32 4.72 5.93 7.21 8.38 6.64 4.84 6.02 4.83 2.99 5.16 MEAN OF MIXING RATIO AT 09 GMT. 3.76 2.67 4.22 4.29 5.90 6.64 8.62 6.22 4.23 6.66 5.25 2.94 5.12 MEAN OF MIXING RATIO AT 15 GMT. 3.78 2.90 4.32 4.45 5.37 6.15 8.59 6.00 4.19 6.25 5.45 2.78 5.02 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -3.4 3.4 2.8 14.0 17.5 22.0 21.0 11.4 6.8 4.0 -7.4 -7.4 DAY 12 20 3 5 7 6 15 19 18 13 13 9 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 19.6 24.6 29.4 36.8 37.0 43.2 44.6 43.4 36.4 32.2 28.4 27.7 44.6 DAY 4 1 31 25 31 26 8 3 1 2 5 20 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.0 0.4 9.0 2.5 4.0 0.0 0.0 0.0 0.0 4.0 7.2 0.8 9.0 DAY 24 24 12 2 6 ** ** ** ** 16 17 1 MONTHLY TOTAL PRECIPITATION IN MM. 7.1 0.4 17.3 8.1 4.2 0.0 0.0 0.0 0.0 5.0 11.0 0.8 53.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 46.0 22.8 0.0 31.2 NO. OF DAYS WITH PRECIPITATION. 3 1 5 6 2 0 0 0 0 3 5 1 26 NO. OF DAYS PRECIPITATION EQUAL 2 0 5 4 1 0 0 0 0 1 2 0 15 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 62 49 51 37 35 32 34 27 33 52 52 58 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 40 27 29 19 20 17 19 14 16 33 32 31 25 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 46 32 31 21 19 14 18 14 17 35 40 37 27 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 0 0 0 0 0 0 0 0 0 0 6 8 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 4 10 26 31 31 4 0 0 0 106 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 10 25 30 31 31 19 2 0 0 148 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 11 22 14 0 0 0 0 47 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. 11 8 0 0 0 0 0 0 0 0 0 17 36 DATE OF START AND END FREEZING START = 6 DEC. END = 21 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 8.3 9.7 14.0 19.8 25.6 30.2 34.9 32.7 27.1 19.5 14.9 6.0 20.2 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.3 3.7 7.5 13.4 19.1 22.9 27.4 24.8 19.4 12.1 6.9 0.8 13.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 15.2 15.7 20.5 26.2 32.0 37.4 42.3 40.6 34.8 26.9 23.0 11.2 27.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.9 12.0 13.0 12.8 12.9 14.5 14.9 15.8 15.4 14.8 16.1 10.4 13.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.05 3.56 3.99 6.35 5.31 6.88 7.46 6.69 5.03 4.44 2.89 3.61 4.94 MEAN OF MIXING RATIO AT 09 GMT. 3.45 4.02 3.69 5.74 4.39 6.13 7.42 6.29 4.32 4.70 3.54 4.15 4.82 MEAN OF MIXING RATIO AT 15 GMT. 3.27 4.12 3.98 6.17 4.19 5.50 7.00 6.14 4.59 4.58 3.33 4.14 4.75 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.0 -2.2 0.2 7.0 14.2 17.8 19.6 21.5 13.4 5.0 -2.6 -3.0 -4.0 DAY 24 26 7 7 10 24 27 11 22 28 30 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.0 22.0 28.6 32.6 37.8 43.8 46.5 44.0 41.0 36.0 29.6 16.2 46.5 DAY 31 5 25 3 7 22 11 23 10 4 4 31 24 HOUR MAXIMUM PRECIPITATION IN MM. 1.0 12.2 4.9 6.6 0.5 0.0 0.0 0.0 0.7 0.0 0.0 5.0 12.2 DAY 1 6 21 13 28 ** ** ** 22 ** ** 12 MONTHLY TOTAL PRECIPITATION IN MM. 1.0 29.7 6.9 19.2 0.5 0.0 0.0 0.0 1.2 0.0 0.0 11.4 69.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.8 28.2 1.7 16.3 NO. OF DAYS WITH PRECIPITATION. 1 5 2 7 1 0 0 0 2 0 0 5 23 NO. OF DAYS PRECIPITATION EQUAL 1 4 2 6 0 0 0 0 0 0 0 4 17 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 58 60 51 55 32 32 28 28 31 43 38 75 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 34 40 26 32 16 17 15 14 14 22 21 50 25 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 37 43 30 34 15 14 14 13 16 25 25 60 27 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 5 22 30 31 13 0 0 0 101 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 3 23 30 31 31 27 10 0 0 155 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 27 20 1 0 0 0 53 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 4 0 0 0 0 0 4 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 14 2 0 0 0 0 0 0 0 0 3 13 32 DATE OF START AND END FREEZING START = 28 NOV. END = 27 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 4.8 9.6 12.3 20.2 26.3 30.8 31.7 31.3 29.3 20.1 11.9 9.4 19.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.2 4.2 7.3 14.0 19.9 23.8 25.5 24.2 21.2 12.7 5.4 2.5 13.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.8 15.0 17.4 26.4 32.8 37.7 37.9 38.5 37.5 27.5 18.4 16.4 26.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.0 10.8 10.1 12.4 12.9 13.9 12.4 14.3 16.3 14.8 13.0 13.9 12.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.57 4.28 5.12 5.15 7.96 6.92 7.46 6.17 5.71 4.15 3.02 2.84 5.20 MEAN OF MIXING RATIO AT 09 GMT. 3.88 4.53 5.05 4.99 7.05 6.55 5.69 5.25 5.59 4.08 3.38 3.22 4.94 MEAN OF MIXING RATIO AT 15 GMT. 3.90 4.72 5.15 5.17 7.16 6.35 5.23 5.22 5.84 4.32 3.25 3.05 4.95 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.0 0.0 0.4 3.6 13.6 17.6 21.4 18.8 17.8 7.2 -1.2 -2.8 -9.0 DAY 16 4 1 5 2 18 15 31 1 20 19 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 26.0 26.8 32.6 40.0 43.0 42.6 43.0 42.0 34.4 25.2 22.6 43.0 DAY 8 10 31 21 31 1 8 27 8 14 8 28 24 HOUR MAXIMUM PRECIPITATION IN MM. 15.0 29.0 19.0 5.0 10.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 29.0 DAY 12 22 4 22 14 ** ** ** ** ** ** 15 MONTHLY TOTAL PRECIPITATION IN MM. 19.8 48.1 36.1 9.8 23.8 0.0 0.0 0.0 0.0 0.0 0.0 0.2 137.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 75.5 24.4 0.0 0.1 NO. OF DAYS WITH PRECIPITATION. 5 7 10 4 5 0 0 0 0 0 0 1 32 NO. OF DAYS PRECIPITATION EQUAL 3 5 4 3 4 0 0 0 0 0 0 0 19 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 0 1 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 72 70 44 47 31 31 28 32 38 45 51 47 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 47 44 25 24 17 14 13 15 19 26 28 27 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 52 47 27 26 16 13 13 17 24 31 34 30 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 0 3 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 12 28 31 30 18 1 0 0 120 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 8 24 30 31 31 29 9 0 0 162 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 7 5 9 11 0 0 0 33 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 1 0 0 0 0 0 0 0 0 3 9 30 DATE OF START AND END FREEZING START = 13 NOV. END = 4 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 8.4 7.9 12.2 20.2 25.6 32.1 35.3 32.2 27.5 23.2 13.4 9.0 20.6 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.8 0.9 5.9 13.5 18.9 25.5 28.4 24.6 19.7 16.2 7.4 3.7 13.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 15.0 14.9 18.5 26.9 32.3 38.7 42.3 39.8 35.4 30.2 19.4 14.4 27.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.2 14.0 12.6 13.4 13.4 13.2 13.9 15.2 15.7 14.0 12.0 10.7 13.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.91 2.10 3.12 4.55 5.51 8.06 7.34 6.04 4.84 4.98 4.51 4.31 4.85 MEAN OF MIXING RATIO AT 09 GMT. 3.19 2.46 2.89 4.09 4.85 7.49 6.57 5.59 4.77 5.16 4.77 4.72 4.71 MEAN OF MIXING RATIO AT 15 GMT. 3.21 2.47 3.01 4.19 4.81 7.40 6.68 5.59 4.99 5.35 4.69 4.67 4.75 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.6 -6.6 -1.4 4.2 10.0 20.0 23.8 19.0 16.4 10.0 2.8 -0.8 -6.6 DAY 30 8 9 13 6 2 1 30 17 25 9 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.2 25.6 25.4 34.8 39.0 43.6 46.6 44.0 41.8 36.6 27.2 20.0 46.6 DAY 7 22 24 28 28 17 24 15 1 3 5 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 0.2 7.4 1.0 3.2 3.0 0.0 0.0 0.0 0.9 2.0 4.0 8.0 DAY 17 19 25 4 5 6 ** ** ** 24 13 14 MONTHLY TOTAL PRECIPITATION IN MM. 8.0 0.2 11.8 1.2 3.3 3.9 0.0 0.0 0.0 1.3 4.0 11.5 45.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.2 18.6 0.0 37.2 NO. OF DAYS WITH PRECIPITATION. 1 1 4 2 2 3 0 0 0 2 4 5 24 NO. OF DAYS PRECIPITATION EQUAL 1 0 3 1 1 1 0 0 0 0 2 4 13 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 56 42 47 37 33 33 26 26 29 38 60 75 42 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 33 25 24 18 17 18 13 13 14 21 36 49 23 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 39 28 25 21 18 18 13 13 16 25 41 55 26 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 5 0 0 0 0 0 0 0 0 0 0 5 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 12 29 31 26 9 4 0 0 111 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 5 21 30 31 31 29 14 0 0 161 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 10 27 16 3 0 0 0 56 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 6 13 2 0 0 0 0 0 0 0 0 2 23 DATE OF START AND END FREEZING START = 24 DEC. END = 10 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 6.2 8.4 14.6 21.9 25.9 30.7 33.8 32.5 27.9 21.6 16.7 11.3 21.0 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.2 2.8 8.9 14.7 19.2 24.0 27.2 25.7 20.2 14.3 8.8 4.6 14.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.1 14.1 20.4 29.2 32.6 37.4 40.4 39.3 35.6 28.9 24.6 18.0 27.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.9 11.3 11.5 14.5 13.4 13.4 13.2 13.6 15.4 14.6 15.8 13.4 13.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.53 3.66 4.42 5.18 5.99 7.03 8.43 7.72 6.35 4.83 3.61 3.58 5.36 MEAN OF MIXING RATIO AT 09 GMT. 3.88 3.53 4.27 4.40 4.93 5.89 7.00 6.75 6.76 4.73 4.40 4.17 5.06 MEAN OF MIXING RATIO AT 15 GMT. 3.96 3.88 4.24 4.78 4.74 5.71 6.85 6.50 7.00 4.82 4.15 3.88 5.04 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.4 -1.4 0.2 9.8 10.8 21.0 21.8 22.4 14.8 10.6 4.8 2.0 -3.4 DAY 16 24 2 8 3 1 26 27 17 12 27 16 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.0 26.8 29.4 36.4 40.2 41.6 46.0 44.2 42.4 37.6 28.4 22.4 46.0 DAY 26 8 25 16 12 28 5 18 5 1 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 14.1 25.0 3.0 7.2 0.0 0.2 0.0 0.1 0.8 0.0 0.1 25.0 DAY 5 12 1 6 30 ** 25 ** 14 11 ** 3 MONTHLY TOTAL PRECIPITATION IN MM. 15.3 24.9 29.7 7.6 11.2 0.0 0.2 0.0 0.1 1.3 0.0 0.1 90.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 77.3 20.8 0.3 1.5 NO. OF DAYS WITH PRECIPITATION. 6 6 5 5 2 0 1 0 1 2 0 1 29 NO. OF DAYS PRECIPITATION EQUAL 3 4 4 3 2 0 0 0 0 0 0 0 16 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 0 0 0 0 0 0 0 0 0 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 74 68 55 42 36 31 33 33 36 41 43 56 46 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 49 43 34 19 18 15 16 16 20 20 24 34 26 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 56 46 35 23 17 14 15 15 22 24 29 39 28 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 2 11 30 31 31 12 1 0 0 118 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 13 26 30 31 31 29 12 0 0 172 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 4 17 13 3 0 0 0 38 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 4 0 0 0 0 0 4 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 12 7 0 0 0 0 0 0 0 0 0 0 19 DATE OF START AND END FREEZING START = 1 JAN. END = 25 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 6.8 12.7 13.6 20.9 26.9 32.3 31.9 31.8 27.9 22.5 13.4 8.9 20.8 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.2 6.2 8.5 14.2 19.5 24.8 25.0 24.8 20.1 14.7 7.5 2.8 14.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.3 19.1 18.8 27.5 34.3 39.7 38.8 38.8 35.6 30.3 19.2 15.1 27.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.1 12.9 10.3 13.3 14.8 14.9 13.8 14.0 15.5 15.6 11.7 12.3 13.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.87 3.61 4.93 5.59 5.82 7.25 9.28 6.79 6.55 5.15 4.57 3.68 5.59 MEAN OF MIXING RATIO AT 09 GMT. 4.09 3.38 4.60 5.47 5.99 7.52 9.51 6.35 7.51 6.08 4.52 4.07 5.76 MEAN OF MIXING RATIO AT 15 GMT. 4.47 3.77 5.05 5.67 5.91 7.85 10.09 6.73 7.47 6.13 4.84 4.11 6.01 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 0.4 0.0 8.0 12.4 21.4 20.8 20.0 14.8 8.4 0.6 -1.6 -6.0 DAY 3 2 19 12 22 7 22 29 29 27 30 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.8 25.2 27.0 32.0 41.0 45.6 46.6 42.8 41.8 35.0 26.6 19.8 46.6 DAY 30 27 31 30 31 29 5 30 15 12 1 28 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.8 0.1 30.0 4.0 0.0 0.0 0.6 0.0 0.0 0.0 5.3 2.0 30.0 DAY 18 4 2 22 ** ** 15 ** ** ** 11 16 MONTHLY TOTAL PRECIPITATION IN MM. 35.8 0.2 61.6 6.0 0.0 0.0 1.0 0.0 0.0 0.0 12.6 2.5 119.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 81.5 5.0 0.8 12.6 NO. OF DAYS WITH PRECIPITATION. 8 2 7 5 0 0 3 0 0 0 4 3 32 NO. OF DAYS PRECIPITATION EQUAL 8 0 5 2 0 0 0 0 0 0 3 1 19 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 2 0 0 0 0 0 0 0 0 0 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 53 64 46 33 31 40 30 39 42 60 67 48 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 49 26 39 26 19 17 24 15 22 24 35 39 28 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 62 33 44 28 19 17 24 16 23 28 44 49 32 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 0 3 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 12 30 30 30 13 1 0 0 116 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 8 28 30 31 31 27 20 0 0 175 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 14 11 5 3 0 0 0 35 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 1 0 0 0 0 0 2 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 8 0 1 0 0 0 0 0 0 0 0 2 11 DATE OF START AND END FREEZING START = 1 DEC. END = 19 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 7.0 9.2 14.1 24.2 29.0 30.3 31.7 31.0 29.1 20.6 12.2 9.1 20.6 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.3 2.8 7.0 16.8 21.1 22.5 25.0 23.4 21.7 13.6 6.5 3.8 13.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.7 15.6 21.3 31.6 37.0 38.1 38.5 38.5 36.5 27.5 17.8 14.4 27.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.4 12.8 14.3 14.8 15.9 15.6 13.5 15.1 14.8 13.9 11.3 10.6 13.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.90 3.48 2.65 4.46 5.49 5.79 6.83 6.32 6.06 5.39 4.28 4.68 4.86 MEAN OF MIXING RATIO AT 09 GMT. 3.28 3.30 2.66 4.17 5.37 5.17 5.87 6.21 5.70 5.50 4.58 5.06 4.74 MEAN OF MIXING RATIO AT 15 GMT. 3.29 3.55 2.77 4.18 5.28 5.28 6.13 6.34 5.53 5.39 4.48 5.26 4.79 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.6 -2.6 -0.8 10.0 16.2 14.0 18.8 20.8 18.0 10.4 1.4 -0.6 -4.6 DAY 13 10 16 2 12 14 21 26 26 30 12 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 19.8 21.8 30.6 35.8 42.0 43.2 42.6 42.4 40.2 33.0 26.4 21.2 43.2 DAY 2 24 24 10 26 24 8 3 8 26 3 22 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.2 4.4 0.2 3.0 0.0 0.0 0.0 0.0 0.4 6.8 1.0 6.8 12.2 DAY 29 14 25 20 ** ** ** ** 4 4 6 6 MONTHLY TOTAL PRECIPITATION IN MM. 14.7 7.6 0.2 3.0 0.0 0.0 0.0 0.0 0.4 7.0 2.4 18.0 53.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 42.2 5.6 0.8 51.4 NO. OF DAYS WITH PRECIPITATION. 5 4 1 1 0 0 0 0 1 2 4 10 28 NO. OF DAYS PRECIPITATION EQUAL 2 3 0 1 0 0 0 0 0 1 2 5 14 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 57 65 36 30 28 28 29 30 33 48 60 79 44 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 38 32 18 15 15 14 14 15 16 27 38 51 24 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 43 40 20 15 14 13 15 16 17 29 42 62 27 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 0 3 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 3 15 23 29 30 19 0 0 0 119 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 1 22 31 28 31 31 30 9 0 0 183 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 5 14 11 10 1 0 0 0 41 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 4 1 0 0 0 0 0 0 0 0 3 22 DATE OF START AND END FREEZING START = 29 DEC. END = 16 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 6.2 8.4 13.4 20.3 25.7 30.9 32.7 30.8 26.9 20.4 13.6 7.8 19.8 SD OF MEAN DAILY TEMPERATURE IN C. 1.91 2.41 2.16 1.47 1.55 0.98 0.94 1.45 1.18 1.83 2.06 2.00 1.66 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.1 1.8 6.7 13.1 18.2 23.0 25.2 23.0 18.5 12.4 6.2 1.3 12.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.4 15.1 20.0 27.6 33.3 38.8 40.2 38.6 35.2 28.4 21.0 14.3 27.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.5 13.3 13.3 14.5 15.2 15.8 15.0 15.6 16.7 16.0 14.8 13.0 14.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.13 3.40 4.24 5.18 6.12 6.60 7.43 7.00 5.79 4.85 4.11 3.34 5.09 MEAN OF MIXING RATIO AT 09 GMT. 3.87 3.86 4.24 4.87 5.98 6.85 7.08 6.78 5.85 5.36 4.78 4.15 5.30 MEAN OF MIXING RATIO AT 15 GMT. 3.77 3.94 4.30 5.00 5.64 6.43 6.90 6.57 5.74 5.28 4.53 3.90 5.16 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -9.0 -4.0 0.1 6.0 14.0 16.0 12.0 5.0 -1.0 -6.2 -11.0 -11.0 YEAR - DAY 78-15 76-17 75- 7 65- 7 78- 9 61- 9 74-26 85-31 62-27 61-31 64-30 64-11 64-11 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 26.1 28.1 33.0 39.0 43.0 46.1 48.0 46.0 42.4 38.1 31.1 27.7 48.0 YEAR - DAY 66-27 62-20 64-26 68-21 70-27 70-24 78- 1 82- 4 98- 5 65-15 65- 7 94-20 78- 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 17.0 29.0 52.0 32.0 53.0 7.0 0.6 0.2 1.0 20.0 14.0 23.0 53.0 YEAR - DAY 79-24 96-22 87-31 75-17 79- 8 79- 4 99-15 88-25 63-10 76-30 71-12 78- 3 79- 8 MONTHLY TOTAL PRECIPITATION IN MM. 12.6 13.1 16.4 10.3 7.6 0.4 0.1 0.0 0.1 2.2 3.2 9.0 75.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 56.5 24.3 0.0 19.2 NO. OF DAYS WITH PRECIPITATION. 4 3 4 3 2 0 0 0 0 1 2 3 22 NO. OF DAYS PRECIPITATION EQUAL 3 2 3 2 1 0 0 0 0 0 1 2 14 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 64 57 45 37 29 30 32 35 44 56 65 47 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 45 38 30 23 19 16 15 16 17 23 31 41 26 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 55 47 37 28 22 17 17 18 20 29 40 51 32 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 3 0 0 0 0 0 0 0 0 0 3 10 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 8 25 30 25 8 0 0 0 97 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 1 10 25 30 31 31 28 13 0 0 169 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 12 18 11 2 0 0 0 44 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 17 10 2 0 0 0 0 0 0 0 3 12 44 DATE OF START AND END FREEZING START = 31 OCT. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHOOR-BIABANAK LATITUDE 33 47 N DATA PROCESSING CENTER LONGITUDE 55 2 E ELEVATION 850 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. 6.3 8.8 13.9 21.1 27.1 32.6 34.2 32.3 28.2 21.1 13.9 8.0 20.6 AVERAGE DEW POINT TEMPERATURE. IN C. -2.8 -2.4 -0.7 1.5 3.9 5.3 6.7 5.7 3.5 2.1 0.1 -2.1 1.7 AVERAGE OF MIXING RATIO IN G/KG 3.58 3.73 4.26 5.01 5.91 6.62 7.13 6.78 5.78 5.16 4.47 3.79 5.18 AVERAGE OF VAPOUR PRESSURE HPA 5.23 5.44 6.22 7.33 8.65 9.69 10.44 9.92 8.47 7.55 6.53 5.54 7.59 AVERAGE OF SATURATION DEFICIT IN HPA 4.93 6.75 10.86 19.42 29.21 41.63 45.41 40.54 32.10 19.28 10.61 5.92 22.22 AVERAGE RELATIVE HUMIDITY IN PERCENT 56 50 42 32 26 21 21 22 24 32 43 52 35 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 71 67 59 46 38 30 30 32 35 45 58 68 48 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 43 36 29 21 18 14 14 15 16 22 30 40 25 NO. OF DAYS PRECIPITATION EQUAL 1 1 1 1 0 0 0 0 0 0 0 1 5 OR MORE THAN 5 MM.