IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1964 -8.4 0.5 8.3 10.4 17.8 23.3 25.7 24.8 19.7 12.2 5.7 -2.6 34.1 1965 -0.4 1.2 6.2 11.1 19.3 22.4 25.2 23.6 19.5 16.6 9.8 4.3 25.6 1966 6.0 6.6 6.8 12.3 17.3 23.7 23.9 22.6 18.8 11.3 6.3 2.9 21.0 1967 -0.1 -0.2 5.2 8.8 15.3 20.0 24.0 22.6 20.0 12.4 7.5 1.2 24.2 1968 -0.5 -0.9 5.6 10.6 15.1 21.5 22.9 22.7 20.6 14.3 7.4 2.0 23.8 1969 -4.5 -2.8 9.0 11.7 17.2 22.3 24.4 23.3 18.8 15.1 4.5 4.8 28.9 1970 -0.4 4.4 6.7 15.5 20.8 23.9 24.4 26.3 19.2 15.2 10.6 2.1 26.7 1971 0.1 2.5 8.7 12.6 20.6 23.4 ****** 23.1 17.7 12.4 7.2 3.4 ****** 1972 -5.3 -5.9 3.0 11.8 13.1 20.5 21.7 24.3 18.7 16.1 9.0 -0.6 30.2 1973 -3.9 4.1 5.4 12.3 17.8 24.6 26.5 24.1 19.7 16.2 6.8 2.0 30.4 1974 -3.1 -2.9 7.7 11.7 19.0 23.3 25.0 22.3 19.2 11.2 7.5 -0.4 28.1 1975 -1.5 -0.3 6.0 12.4 17.9 23.3 27.0 24.0 20.4 12.9 5.1 1.4 28.5 1976 2.9 0.2 2.8 10.9 17.7 22.9 26.7 25.0 21.1 14.7 5.5 2.0 26.5 1977 -8.2 3.0 11.3 13.8 18.2 25.3 26.5 24.0 19.5 13.8 7.5 3.4 34.7 1978 -0.1 2.4 6.1 12.2 17.6 23.1 25.4 23.0 20.8 14.9 4.5 5.0 25.5 1979 2.1 2.8 4.3 13.9 15.3 21.9 26.6 23.0 20.4 17.3 10.0 2.9 24.5 1980 -1.6 -0.8 6.2 16.2 18.5 23.7 25.4 23.6 19.8 14.5 8.7 4.5 27.0 1981 1.4 3.4 8.8 12.5 17.4 21.6 24.5 23.6 20.1 12.4 9.2 4.3 23.1 1982 -1.3 -1.4 3.9 14.6 18.8 23.0 ****** 23.5 18.5 12.2 4.5 -1.0 ****** 1983 -1.6 2.1 3.5 11.7 18.0 23.8 27.0 25.6 20.3 13.4 10.0 0.9 28.6 1984 0.1 -2.8 8.0 12.9 ****** 22.2 25.7 26.0 19.5 12.2 7.9 -2.0 ****** 1985 -0.7 4.1 3.9 15.1 18.4 24.5 25.9 21.9 20.0 13.1 8.8 2.9 26.6 1986 1.1 3.9 2.9 12.0 18.3 21.8 24.5 22.8 19.7 15.7 7.3 0.9 23.6 1987 2.4 4.1 7.8 12.5 18.7 21.5 24.2 24.7 20.3 9.8 10.1 4.8 22.3 1988 0.2 1.9 6.6 13.0 17.9 24.2 25.7 23.3 20.2 14.3 9.8 4.5 25.5 1989 -3.4 -3.3 6.8 13.1 16.7 24.0 26.0 23.3 20.1 15.4 8.0 4.7 29.4 1990 -0.7 1.0 5.8 11.3 19.3 23.9 23.6 ****** 21.1 ****** ****** ****** ****** 1991 -1.7 -0.7 4.8 11.7 14.5 20.8 23.7 22.3 18.8 12.0 6.8 2.2 25.4 1992 -2.0 0.8 2.0 10.3 12.8 20.9 ****** ****** ****** ****** 9.5 3.4 ****** 1993 -3.6 1.7 3.3 12.2 15.9 20.8 23.0 21.5 19.8 ****** 6.3 3.0 ****** 1994 0.8 0.7 7.4 11.8 17.5 22.1 23.9 24.2 15.4 11.2 9.7 0.6 23.6 1995 2.4 2.4 5.1 12.2 16.0 21.2 25.4 23.8 18.4 ****** ****** ****** ****** 1996 -1.0 1.9 4.1 11.0 16.3 21.4 22.7 22.2 20.1 12.6 5.5 3.9 23.7 1997 1.5 1.0 4.0 11.8 15.7 21.5 25.3 23.5 19.0 14.5 6.4 1.8 24.3 1998 -0.6 0.1 5.1 13.4 15.9 20.8 23.7 22.6 19.5 14.7 9.9 7.2 24.3 1999 0.9 4.4 5.2 11.5 16.7 21.9 22.2 22.9 18.7 14.3 4.1 4.4 22.0 2000 1.0 1.3 5.1 15.1 18.7 19.2 19.5 ****** 17.9 11.9 2.6 ****** ****** 2001 -0.6 0.9 5.7 13.5 16.0 20.4 22.0 22.1 20.5 15.4 7.9 4.4 22.7 2002 1.1 2.4 7.2 11.2 16.5 21.3 22.2 23.6 20.6 17.1 7.9 -0.3 23.9 2003 0.4 0.9 4.1 11.8 12.7 18.9 24.0 22.2 19.1 14.4 8.0 2.3 23.6 MEAN -0.8 1.1 5.8 12.4 17.1 22.3 24.5 23.5 19.5 13.8 7.5 2.5 25.3 SD 2.77 2.52 2.02 1.51 1.90 1.53 1.70 1.12 1.08 1.83 2.01 2.16 1.85 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 -13.9 -3.6 2.6 5.2 10.0 16.6 19.4 17.5 12.5 4.9 0.1 -7.8 5.3 1965 -4.1 -3.7 0.8 4.6 12.5 15.8 19.2 16.9 12.4 10.8 3.8 -0.9 7.3 1966 0.6 1.5 1.1 6.7 10.9 15.7 16.8 14.6 11.3 4.7 -1.8 -3.6 6.5 1967 -7.0 -5.5 -1.2 2.7 7.8 10.4 15.8 14.3 11.4 5.3 0.9 -5.5 4.1 1968 -6.5 -6.4 0.2 4.0 8.0 13.4 15.0 14.4 11.5 6.3 1.1 -2.7 4.9 1969 -10.3 -8.5 3.9 6.1 10.5 15.1 12.5 17.0 11.9 8.9 -0.3 -0.0 5.6 1970 -5.2 -0.8 1.7 9.2 14.1 17.0 18.1 20.0 11.7 7.6 3.8 -3.2 7.8 1971 -5.7 -2.2 3.2 6.6 12.8 16.4 ****** 14.7 9.6 3.8 0.7 -3.2 ****** 1972 -11.2 -13.6 -2.7 4.1 5.8 11.9 13.8 17.2 9.7 8.5 1.8 -5.4 3.3 1973 -9.0 -0.9 0.5 6.4 11.6 17.4 19.5 17.8 12.2 8.7 -0.1 -4.2 6.7 1974 -7.9 -8.0 2.6 6.3 11.5 15.6 19.2 15.1 12.0 3.6 0.1 -5.8 5.4 1975 -7.0 -5.1 -0.3 5.5 10.7 16.2 19.9 17.7 13.2 5.0 -0.8 -2.8 6.0 1976 -1.0 -4.4 -1.9 5.0 10.3 16.0 20.3 18.6 13.2 8.1 -2.0 -2.9 6.6 1977 -12.2 -3.6 4.5 8.0 11.8 18.3 19.9 16.6 11.5 7.7 2.4 -1.1 7.0 1978 -5.3 -3.1 0.0 5.2 10.8 15.7 19.3 14.9 11.8 6.7 -0.4 0.6 6.3 1979 -2.7 -1.8 -0.5 7.2 7.2 13.9 20.2 16.8 12.7 9.6 1.6 -1.5 6.9 1980 -6.5 -6.1 0.8 10.6 10.3 15.8 18.5 15.5 10.8 7.4 2.6 -0.9 6.6 1981 -3.8 -1.8 3.1 5.7 10.0 14.1 18.2 17.0 11.6 5.7 2.9 -1.6 6.8 1982 -5.7 -6.9 -2.0 7.2 11.2 15.0 ****** 15.7 10.5 6.2 -0.0 -6.6 ****** 1983 -7.2 -4.2 -2.4 5.7 11.3 16.5 20.1 18.3 12.7 5.3 3.1 -4.0 6.3 1984 -5.2 -9.6 2.6 6.0 ****** 15.2 19.8 19.0 11.6 4.2 1.9 -7.6 ****** 1985 -6.2 -2.1 -2.1 7.8 10.4 17.5 19.2 15.3 11.4 5.4 2.5 -1.5 6.5 1986 -5.0 -2.3 -2.6 5.8 11.1 14.9 18.0 16.0 11.7 8.1 0.8 -3.8 6.1 1987 -3.7 -2.0 2.5 5.6 11.3 13.8 17.2 17.8 12.2 2.7 3.0 -1.8 6.6 1988 -5.1 -3.9 0.7 6.6 10.5 16.8 19.4 16.0 11.9 6.6 3.3 -1.0 6.8 1989 -9.4 -10.3 1.3 5.6 9.4 16.6 19.9 15.7 11.3 6.9 1.8 0.2 5.8 1990 -5.3 -3.8 -0.8 4.1 11.1 16.3 18.4 17.7 13.0 4.9 2.5 -8.0 5.8 1991 -8.1 -6.7 -0.1 4.8 7.1 13.6 16.4 14.8 10.7 4.8 0.5 -3.1 4.5 1992 -7.0 -4.2 -2.0 5.1 7.4 14.4 ****** ****** ****** ****** 3.2 -0.4 ****** 1993 -8.9 -2.4 -1.2 6.1 10.0 14.3 18.4 15.4 12.3 ****** 1.6 -2.0 ****** 1994 -4.1 -3.6 1.9 5.7 11.0 16.3 17.6 18.7 8.4 5.1 4.6 -3.6 6.5 1995 -2.8 -2.0 0.2 6.6 9.9 15.0 19.7 17.2 11.2 ****** ****** ****** ****** 1996 -5.5 -2.3 0.4 5.7 10.6 16.2 18.0 15.9 11.9 5.6 -0.9 -1.0 6.2 1997 -3.5 -4.9 -0.8 6.0 9.9 15.4 20.4 17.1 11.7 7.9 1.8 -1.3 6.6 1998 -3.8 -3.7 -0.2 6.9 9.7 14.5 17.4 16.1 12.0 6.1 3.2 0.6 6.6 1999 -3.9 -0.7 0.4 4.9 9.3 14.7 15.9 16.2 10.9 6.4 -1.1 -1.3 6.0 2000 -4.1 -4.4 -1.3 6.1 8.7 8.1 10.1 10.0 9.0 3.8 -2.8 ****** ****** 2001 -6.5 -6.0 -2.0 2.9 5.9 10.7 13.6 11.6 11.7 6.8 1.4 -0.5 4.1 2002 -3.6 -2.4 0.9 5.7 9.7 14.4 16.6 16.3 12.5 9.3 2.3 -5.3 6.4 2003 -4.9 -4.1 -0.7 4.9 6.5 11.9 17.2 16.9 12.4 5.6 0.2 -4.3 5.1 MEAN -6.0 -4.3 0.3 5.9 10.0 14.9 17.8 16.3 11.6 6.4 1.3 -2.9 5.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 -3.0 4.6 14.1 15.7 25.7 30.1 31.9 32.1 27.0 19.5 11.4 2.6 17.6 1965 3.2 6.1 11.8 17.8 26.1 29.0 31.2 30.4 26.6 22.3 15.8 9.5 19.2 1966 11.3 11.7 12.4 18.0 23.7 31.6 31.1 30.7 26.3 17.9 14.3 9.5 19.9 1967 6.7 5.2 11.6 14.8 22.8 29.6 32.1 30.8 28.5 19.6 14.0 7.9 18.7 1968 5.5 4.6 11.0 17.1 22.2 29.6 30.9 31.1 29.7 22.2 13.7 6.7 18.7 1969 1.2 2.9 14.0 17.2 24.0 29.5 36.3 29.6 25.7 21.2 9.3 9.5 18.4 1970 4.4 9.7 11.8 21.8 27.5 30.7 30.8 32.7 26.6 22.8 17.4 7.5 20.3 1971 5.9 7.2 14.3 18.5 28.3 30.5 ****** 31.5 25.7 21.1 13.7 10.0 ****** 1972 0.7 1.8 8.6 19.5 20.5 29.1 29.6 31.4 27.8 23.6 16.2 4.2 17.8 1973 1.2 9.0 10.3 18.3 24.0 31.9 33.6 30.4 27.1 23.6 13.8 8.3 19.3 1974 1.6 2.2 12.9 17.0 26.6 31.0 30.7 29.4 26.4 18.9 15.0 5.0 18.1 1975 4.0 4.4 12.4 19.3 25.1 30.3 34.2 30.3 27.6 20.9 11.0 5.7 18.8 1976 6.8 4.8 7.5 16.8 25.0 29.7 33.1 31.5 28.9 21.3 13.0 6.9 18.8 1977 -4.2 9.8 18.1 19.7 24.6 32.3 33.2 31.3 27.5 20.0 12.6 7.9 19.4 1978 5.2 7.9 12.2 19.2 24.3 30.5 31.6 31.1 29.9 23.1 9.4 9.4 19.5 1979 6.8 7.3 9.1 20.6 23.3 29.9 33.0 29.3 28.0 24.9 18.2 7.2 19.8 1980 3.4 4.5 11.6 21.8 26.7 31.5 32.3 31.7 28.8 21.6 14.8 9.8 19.9 1981 6.6 9.0 14.8 19.6 25.0 29.1 30.8 30.3 28.4 19.1 15.5 10.1 19.9 1982 3.2 4.2 9.6 22.0 26.4 30.9 ****** 31.3 26.6 18.1 9.1 4.6 ****** 1983 4.0 8.3 9.3 17.8 24.7 31.1 34.0 33.0 27.9 21.5 16.8 5.7 19.5 1984 5.6 4.2 13.3 19.6 ****** 29.2 31.6 32.9 27.3 20.2 13.9 3.5 ****** 1985 4.8 10.3 9.9 22.4 26.4 31.4 32.5 28.3 28.5 20.8 15.1 7.2 19.8 1986 7.1 7.9 8.4 18.2 25.5 28.6 31.0 29.5 27.7 23.5 13.8 5.7 18.9 1987 8.9 10.2 13.1 19.3 26.1 29.3 31.3 31.7 28.4 16.9 16.9 11.4 20.3 1988 5.4 7.8 12.6 19.4 25.3 31.6 32.1 30.5 28.5 22.0 16.3 10.0 20.1 1989 2.6 3.7 12.3 20.6 24.0 31.4 32.1 31.0 29.0 23.9 14.1 9.2 19.5 1990 3.9 5.8 12.6 18.5 27.5 31.6 29.4 ****** 29.3 ****** ****** ****** ****** 1991 4.7 5.2 9.7 18.6 21.9 27.9 31.0 29.9 26.9 19.3 13.2 7.6 18.0 1992 3.1 5.7 6.3 15.6 18.1 27.5 ****** ****** ****** ****** 15.5 7.0 ****** 1993 1.6 5.7 7.8 18.3 21.7 27.3 27.6 27.6 27.3 ****** 11.0 7.9 ****** 1994 5.6 5.1 12.9 17.9 24.0 27.9 30.1 29.7 22.4 17.2 14.8 4.8 17.7 1995 7.5 6.9 10.5 17.3 22.2 27.3 30.9 30.3 25.5 ****** ****** ****** ****** 1996 3.5 6.0 7.7 15.9 21.8 26.6 27.5 28.6 28.2 19.6 11.9 8.9 17.2 1997 6.3 6.7 8.9 16.9 21.3 27.6 30.1 29.7 26.4 21.0 11.0 5.0 17.6 1998 2.7 3.8 10.6 20.0 22.1 26.9 30.0 29.1 26.8 22.8 16.8 13.9 18.8 1999 5.7 9.6 10.0 18.1 24.0 29.1 28.5 29.6 26.5 22.2 9.3 10.0 18.5 2000 6.0 7.0 11.6 24.1 28.7 30.3 29.0 ****** 26.9 20.1 8.1 ****** ****** 2001 5.2 7.9 13.5 24.1 26.0 30.1 30.3 32.6 29.4 24.0 14.5 9.4 20.6 2002 5.8 7.3 13.5 16.7 23.3 28.3 27.9 30.8 28.7 25.0 13.5 4.6 18.8 2003 5.6 5.9 8.8 18.7 18.9 25.9 30.7 27.5 25.7 23.1 15.8 8.9 18.0 MEAN 4.4 6.5 11.3 18.8 24.2 29.6 31.2 30.5 27.4 21.2 13.7 7.6 18.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 10.9 8.2 11.5 10.5 15.7 13.5 12.5 14.6 14.5 14.6 11.3 10.4 12.3 1965 7.3 9.8 11.0 13.2 13.6 13.2 12.0 13.5 14.2 11.5 12.0 10.4 11.8 1966 10.7 10.2 11.3 11.3 12.8 15.9 14.3 16.1 15.0 13.2 16.0 13.1 13.3 1967 13.7 10.7 12.8 12.1 15.0 19.2 16.3 16.5 17.1 14.3 13.1 13.4 14.5 1968 12.0 11.0 10.8 13.1 14.2 16.2 15.9 16.7 18.2 15.9 12.6 9.4 13.8 1969 11.5 11.4 10.1 11.1 13.5 14.4 23.8 12.6 13.8 12.3 9.6 9.5 12.8 1970 9.6 10.5 10.1 12.6 13.4 13.7 12.7 12.7 14.9 15.2 13.6 10.7 12.5 1971 11.6 9.4 11.1 11.9 15.5 14.1 ****** 16.8 16.1 17.3 13.0 13.2 ****** 1972 11.9 15.4 11.3 15.4 14.7 17.2 15.8 14.2 18.1 15.1 14.4 9.6 14.4 1973 10.2 9.9 9.8 11.8 12.4 14.5 14.1 12.6 14.9 14.9 13.8 12.5 12.6 1974 9.5 10.2 10.3 10.7 15.1 15.4 11.5 14.3 14.4 15.3 14.9 10.8 12.7 1975 11.0 9.5 12.7 13.8 14.4 14.1 14.3 12.6 14.4 15.9 11.8 8.5 12.7 1976 7.8 9.2 9.4 11.8 14.7 13.7 12.8 12.9 15.7 13.2 15.0 9.8 12.2 1977 8.0 13.4 13.6 11.7 12.8 14.0 13.3 14.7 16.0 12.3 10.2 9.0 12.4 1978 10.5 11.0 12.2 14.0 13.5 14.8 12.3 16.2 18.1 16.4 9.8 8.8 13.1 1979 9.5 9.1 9.6 13.4 16.1 16.0 12.8 12.5 15.3 15.3 16.6 8.7 12.9 1980 9.9 10.6 10.8 11.2 16.4 15.7 13.8 16.2 18.0 14.2 12.2 10.7 13.3 1981 10.4 10.8 11.7 13.9 15.0 15.0 12.6 13.3 16.8 13.4 12.6 11.7 13.1 1982 8.9 11.1 11.6 14.8 15.2 15.9 ****** 15.6 16.1 11.9 9.1 11.2 ****** 1983 11.2 12.5 11.7 12.1 13.4 14.6 13.9 14.7 15.2 16.2 13.7 9.7 13.2 1984 10.8 13.8 10.7 13.6 ****** 14.0 11.8 13.9 15.7 16.0 12.0 11.1 ****** 1985 11.0 12.4 12.0 14.7 16.0 13.9 13.3 13.0 17.1 15.4 12.6 8.7 13.3 1986 12.1 10.2 11.0 12.5 14.4 13.7 13.0 13.5 16.0 15.4 12.9 9.5 12.8 1987 12.6 12.2 10.6 13.7 14.8 15.5 14.1 13.9 16.2 14.2 13.9 13.2 13.7 1988 10.5 11.7 11.9 12.8 14.8 14.8 12.7 14.5 16.6 15.4 13.0 11.0 13.3 1989 12.0 14.0 11.0 15.0 14.6 14.8 12.2 15.3 17.7 17.0 12.3 9.0 13.7 1990 9.2 9.6 13.4 14.4 16.4 15.3 11.0 ****** 16.3 ****** ****** ****** ****** 1991 12.8 11.9 9.8 13.8 14.8 14.3 14.6 15.1 16.2 14.5 12.7 10.7 13.4 1992 10.1 9.9 8.2 10.5 10.7 13.1 ****** ****** ****** ****** 12.3 7.4 ****** 1993 10.5 8.1 9.0 12.2 11.7 13.0 9.2 12.2 15.0 ****** 9.4 9.9 ****** 1994 9.7 8.7 11.0 12.2 13.0 11.6 12.5 11.0 14.0 12.1 10.2 8.4 11.2 1995 10.3 8.9 10.3 10.7 12.3 12.3 11.2 13.1 14.3 ****** ****** ****** ****** 1996 9.0 8.3 7.3 10.2 11.2 10.4 9.5 12.7 16.3 14.0 12.8 9.9 11.0 1997 9.8 11.6 9.7 10.9 11.4 12.2 9.7 12.6 14.7 13.1 9.2 6.3 10.9 1998 6.5 7.5 10.8 13.1 12.4 12.4 12.6 13.0 14.8 16.7 13.6 13.3 12.2 1999 9.6 10.3 9.6 13.2 14.7 14.4 12.6 13.4 15.6 15.8 10.4 11.3 12.6 2000 10.1 11.4 12.9 18.0 20.0 22.2 18.9 ****** 17.9 16.3 10.9 ****** ****** 2001 11.7 13.9 15.5 21.2 20.1 19.4 16.7 21.0 17.7 17.2 13.1 9.9 16.4 2002 9.4 9.7 12.6 11.0 13.6 13.9 11.3 14.5 16.2 15.7 11.2 9.9 12.4 2003 10.5 10.0 9.5 13.8 12.4 14.0 13.5 10.6 13.3 17.5 15.6 13.2 12.8 MEAN 10.4 10.7 11.0 12.9 14.3 14.7 13.4 14.1 15.9 14.9 12.5 10.4 12.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 0.87 2.47 3.61 4.17 5.59 4.90 6.60 5.12 4.37 2.80 2.66 1.28 3.70 1965 2.23 2.47 3.31 3.31 4.35 5.40 5.17 4.90 5.45 6.04 4.27 2.98 4.16 1966 3.58 3.80 3.84 5.12 6.24 6.31 6.57 6.09 5.01 4.68 3.12 3.08 4.79 1967 2.56 3.18 3.55 5.08 6.15 4.63 6.82 4.95 5.56 5.09 4.25 2.91 4.56 1968 3.03 2.97 4.15 5.32 5.77 6.57 6.20 6.30 4.67 4.65 4.52 3.82 4.83 1969 2.53 2.76 5.06 5.10 6.34 6.10 5.96 5.47 5.27 5.14 3.67 3.63 4.75 1970 2.88 3.43 3.84 4.92 5.78 5.45 6.84 6.53 5.23 4.01 3.42 3.11 4.62 1971 2.58 3.35 4.01 5.24 5.81 5.86 ****** 5.57 4.11 4.07 4.59 3.48 ****** 1972 2.47 1.97 3.98 5.15 6.19 8.26 6.28 6.68 5.38 4.79 3.72 2.90 4.81 1973 2.40 3.89 4.27 5.22 6.76 6.86 7.12 7.52 5.70 3.99 3.35 2.75 4.99 1974 2.69 2.49 4.33 5.11 5.91 7.17 7.72 5.90 5.32 3.05 3.07 2.50 4.60 1975 2.74 3.23 4.08 5.30 6.62 6.34 5.97 6.33 5.72 4.02 3.58 3.44 4.78 1976 3.98 3.32 3.96 5.88 6.50 7.46 7.55 6.26 5.59 4.48 3.29 3.46 5.14 1977 ****** 3.80 4.53 5.63 7.05 8.03 8.28 6.92 4.85 4.96 4.59 3.62 ****** 1978 2.84 3.42 3.74 4.70 7.18 7.42 7.33 5.58 5.09 4.53 3.90 4.18 4.99 1979 3.38 3.71 4.09 5.30 4.80 6.77 6.32 5.78 5.73 4.88 2.73 3.72 4.77 1980 2.70 2.99 4.37 6.54 6.50 6.83 7.27 6.28 4.82 4.60 4.54 3.48 5.08 1981 3.17 3.59 4.64 5.71 6.77 7.64 8.57 6.89 5.04 4.87 3.75 3.24 5.32 1982 2.79 2.57 3.55 5.36 6.95 7.49 ****** 6.17 4.82 6.01 4.14 2.61 ****** 1983 2.80 2.87 3.32 5.55 6.60 7.70 7.89 7.57 5.92 3.57 4.09 3.31 5.10 1984 2.90 2.40 4.80 5.11 ****** 6.90 7.03 7.29 5.31 3.45 4.14 2.53 ****** 1985 3.16 3.49 3.67 5.29 5.31 6.84 7.94 6.38 4.85 4.46 4.24 3.90 4.96 1986 2.99 3.53 3.68 5.83 7.02 7.59 10.05 6.76 5.09 5.25 3.93 3.54 5.44 1987 2.95 3.77 4.83 5.77 7.02 6.40 8.17 9.05 7.92 4.96 4.32 3.35 5.71 1988 3.14 3.26 4.16 6.21 7.52 8.39 8.75 8.15 5.72 4.93 3.80 3.62 5.64 1989 2.55 2.29 4.58 5.11 6.67 7.44 8.61 7.17 5.89 5.12 4.43 3.89 5.31 1990 3.18 3.47 3.54 5.22 7.08 7.12 8.91 7.50 5.78 4.23 3.55 2.71 5.19 1991 3.11 3.16 4.91 6.04 6.25 7.95 8.13 6.28 5.98 5.07 3.91 3.55 5.36 1992 3.19 3.14 3.68 5.37 6.73 9.10 ****** ****** ****** ****** 4.76 4.23 ****** 1993 2.65 3.88 4.23 5.91 7.75 8.86 7.59 7.51 7.13 ****** 4.14 3.52 ****** 1994 3.32 3.37 4.86 5.61 6.81 7.10 7.64 7.21 4.88 5.34 5.06 3.47 5.39 1995 3.64 3.68 4.05 6.06 5.96 6.20 8.27 7.74 6.08 ****** ****** ****** ****** 1996 3.05 3.74 4.48 5.97 6.55 7.21 7.49 6.92 6.60 5.36 3.67 3.88 5.41 1997 3.46 3.27 3.71 4.73 6.49 8.87 7.71 6.56 5.54 5.41 4.71 4.01 5.37 1998 3.62 3.42 4.22 5.53 6.74 7.20 8.85 8.68 7.18 4.93 4.30 3.97 5.72 1999 3.50 4.40 4.49 5.23 6.68 7.35 8.22 7.01 6.14 4.97 4.14 3.58 5.48 2000 3.39 3.40 3.89 5.52 8.09 6.64 6.59 7.35 5.92 4.75 3.07 ****** ****** 2001 2.42 3.02 3.80 5.09 6.34 9.36 6.59 6.20 7.07 4.46 4.22 4.28 5.24 2002 3.21 3.47 4.26 6.36 8.06 8.25 6.56 5.99 5.65 4.86 4.34 2.84 5.32 2003 2.75 3.03 3.73 4.99 5.98 7.82 8.76 6.92 6.20 4.70 3.66 2.91 5.12 MEAN 2.94 3.24 4.10 5.37 6.49 7.15 7.47 6.66 5.61 4.67 3.94 3.35 5.08 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 2.04 3.15 4.15 4.28 6.12 3.76 6.00 5.20 4.38 3.00 3.30 2.80 4.01 1965 3.59 3.30 3.44 3.03 4.20 4.40 4.68 4.51 5.58 6.26 5.11 3.85 4.33 1966 4.15 4.26 3.81 5.94 6.24 6.60 6.64 5.77 5.18 4.73 3.59 3.17 5.01 1967 3.66 4.23 3.65 5.96 6.57 5.31 7.18 5.54 5.06 5.72 4.92 4.15 5.16 1968 3.88 3.76 4.75 5.73 6.02 6.49 5.50 5.66 5.08 4.91 5.02 4.70 5.13 1969 4.11 4.17 5.87 5.96 6.83 6.44 5.75 6.11 5.47 5.49 4.57 3.94 5.39 1970 3.83 3.78 4.40 5.01 5.85 6.88 7.11 7.11 6.35 5.06 4.16 3.77 5.28 1971 3.80 3.80 4.78 5.66 6.39 6.69 ****** 5.59 4.48 4.73 5.37 3.77 ****** 1972 3.62 3.69 4.92 5.51 6.79 8.80 6.03 7.07 5.99 5.49 4.51 3.81 5.52 1973 3.56 4.60 4.80 5.82 7.86 7.34 8.21 7.65 6.74 5.62 3.87 3.19 5.77 1974 3.78 4.12 5.57 5.17 6.86 6.91 7.34 6.96 6.74 4.80 4.09 3.94 5.52 1975 3.78 4.26 4.40 5.37 6.73 6.86 6.87 6.83 6.75 5.26 4.56 4.40 5.51 1976 4.39 4.62 4.69 6.71 6.88 7.58 7.95 7.36 7.44 5.68 4.64 4.13 6.00 1977 ****** 4.46 5.82 6.23 7.96 9.16 8.78 8.20 5.77 6.34 5.51 4.71 ****** 1978 3.80 4.72 4.75 4.96 8.01 8.23 7.84 6.61 6.28 5.74 5.29 5.01 5.94 1979 4.50 4.76 5.49 6.06 5.70 6.98 6.28 5.81 6.26 6.09 4.45 4.49 5.57 1980 3.87 4.20 5.33 6.43 6.75 8.02 7.06 7.87 5.85 5.31 5.19 4.19 5.84 1981 4.04 4.72 5.31 6.01 7.50 7.38 7.97 7.27 6.15 6.60 4.72 4.05 5.98 1982 4.18 4.07 4.79 5.62 7.98 8.57 ****** 7.80 5.77 7.01 5.04 3.94 ****** 1983 4.07 4.07 4.08 5.78 7.42 8.49 7.94 8.57 6.87 4.55 4.75 4.52 5.93 1984 3.83 3.72 5.32 5.92 ****** 6.93 6.86 7.36 6.76 4.83 5.11 4.12 ****** 1985 4.02 3.73 4.27 5.04 5.40 6.48 8.12 6.66 6.06 5.91 5.39 4.61 5.47 1986 4.16 4.32 4.50 6.51 7.06 8.94 10.38 6.01 6.29 6.21 4.69 4.68 6.15 1987 4.11 4.35 5.23 6.26 7.66 7.25 8.64 12.21 12.52 7.05 4.69 3.86 6.99 1988 4.12 4.25 4.59 7.22 7.86 8.39 10.45 9.44 7.83 7.20 4.81 4.46 6.72 1989 3.93 3.81 5.07 5.97 7.02 7.70 9.35 8.06 8.16 7.60 5.00 4.31 6.33 1990 4.15 4.40 3.99 5.16 7.11 7.25 9.68 7.25 5.95 4.52 4.45 4.02 5.66 1991 4.49 4.21 5.60 7.23 6.92 7.98 8.45 5.97 6.88 5.50 4.43 4.15 5.98 1992 4.01 4.00 4.43 5.58 7.28 9.40 ****** ****** ****** ****** 7.35 4.87 ****** 1993 3.82 4.38 4.95 5.78 7.90 8.37 7.18 7.26 7.60 ****** 4.94 4.46 ****** 1994 4.00 3.90 4.88 5.95 7.00 7.24 7.31 6.79 5.50 5.65 6.32 4.89 5.79 1995 4.14 4.07 3.92 5.66 5.68 6.53 9.05 6.80 6.21 ****** ****** ****** ****** 1996 4.74 4.53 5.34 5.55 6.74 7.54 7.96 8.16 7.95 6.78 4.93 3.93 6.18 1997 3.69 3.72 4.09 4.68 5.98 9.20 6.93 7.29 6.96 6.02 4.83 4.32 5.64 1998 3.63 3.84 4.81 6.49 6.76 7.15 8.68 8.85 8.70 8.70 6.51 5.36 6.62 1999 4.55 5.04 4.76 5.31 7.00 7.42 8.86 7.63 7.34 7.14 4.93 3.99 6.16 2000 4.39 4.06 4.49 6.05 9.76 7.47 5.89 6.21 6.22 6.54 4.98 ****** ****** 2001 3.72 4.26 8.27 16.53 14.72 18.55 14.37 16.44 16.95 10.32 5.47 5.34 11.24 2002 4.45 4.33 5.39 8.49 9.49 7.18 6.03 5.99 5.60 5.91 5.30 4.15 6.03 2003 3.99 4.19 5.46 8.13 9.58 9.42 8.27 7.71 6.33 6.96 5.57 4.07 6.64 MEAN 3.97 4.15 4.86 6.12 7.23 7.69 7.78 7.33 6.77 5.99 4.94 4.22 5.91 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 1.31 2.97 4.04 3.92 6.16 3.90 5.82 5.07 3.95 3.42 3.22 2.15 3.83 1965 3.12 2.76 3.27 3.51 3.75 4.38 4.64 4.33 5.35 5.96 4.63 3.66 4.11 1966 3.90 4.01 4.22 5.54 5.58 5.97 6.44 6.16 5.06 4.84 3.47 3.14 4.86 1967 3.19 3.78 3.65 5.65 6.74 5.40 7.16 4.79 5.55 5.33 4.93 3.81 5.00 1968 3.71 3.74 4.49 5.42 5.62 6.83 5.76 5.79 5.34 5.05 5.18 4.54 5.12 1969 3.43 3.55 5.55 5.38 6.55 6.01 6.06 5.65 4.69 5.26 4.10 4.06 5.02 1970 3.48 3.76 4.10 4.85 5.43 6.93 7.09 6.63 5.84 4.83 4.02 3.45 5.03 1971 3.46 3.69 4.40 5.57 6.07 5.92 ****** 5.68 4.20 4.46 4.96 3.82 ****** 1972 3.08 2.78 4.51 5.31 6.67 8.47 5.35 6.86 5.73 5.43 4.62 3.52 5.19 1973 2.89 4.37 4.82 5.27 6.98 6.50 7.65 7.36 5.91 5.13 3.94 3.08 5.33 1974 3.06 3.39 4.65 5.58 6.23 6.70 6.81 6.18 6.03 3.91 4.20 3.47 5.02 1975 3.30 3.77 4.32 5.23 6.64 6.45 6.52 6.17 6.09 5.15 4.15 4.14 5.16 1976 4.35 4.02 4.42 6.37 6.25 7.26 7.28 6.62 6.83 5.18 4.46 3.94 5.58 1977 ****** 4.00 4.84 5.90 7.66 8.27 8.29 7.38 5.23 6.05 5.29 4.29 ****** 1978 3.45 4.15 4.44 4.65 7.14 7.73 7.09 5.78 6.01 5.64 4.49 4.78 5.45 1979 3.97 4.28 4.83 5.43 5.03 6.24 5.54 6.19 6.59 6.01 4.19 4.10 5.20 1980 3.05 3.75 5.00 6.18 6.81 8.00 6.40 6.82 5.46 5.34 4.87 3.84 5.46 1981 3.74 4.29 5.06 6.28 7.58 7.46 8.09 6.65 5.68 5.74 4.43 4.02 5.75 1982 3.21 3.39 4.46 5.46 7.05 7.71 ****** 7.48 5.27 6.76 4.72 3.42 ****** 1983 3.36 3.74 3.84 5.78 6.93 7.29 7.16 6.84 5.71 4.28 4.84 3.91 5.31 1984 3.77 3.16 5.09 5.71 ****** 6.35 6.76 6.79 5.76 4.42 4.75 3.44 ****** 1985 3.60 3.55 4.23 5.26 5.03 5.90 7.35 6.10 5.61 5.54 4.98 4.23 5.12 1986 3.86 4.11 3.76 6.01 6.84 8.26 9.98 6.10 5.50 5.84 4.62 4.14 5.75 1987 3.68 4.10 5.12 5.66 7.03 6.87 7.90 10.14 10.28 6.14 4.60 3.74 6.27 1988 3.77 4.11 4.69 6.98 7.76 7.59 8.99 8.65 6.64 5.96 4.95 4.25 6.20 1989 2.99 3.21 4.76 5.12 6.35 7.55 7.72 7.17 7.18 6.85 4.79 4.35 5.67 1990 3.62 3.91 4.05 5.48 6.85 6.86 9.19 6.82 6.07 5.47 3.83 3.49 5.47 1991 3.91 3.92 5.37 6.68 7.10 7.88 7.17 5.81 6.52 5.45 4.12 3.96 5.66 1992 3.50 3.78 4.33 6.00 7.38 8.82 ****** ****** ****** ****** 5.48 4.50 ****** 1993 3.23 4.23 4.52 5.79 7.86 8.10 7.16 7.00 7.58 ****** 4.78 4.08 ****** 1994 3.69 3.48 5.12 5.42 6.68 7.09 7.13 6.78 4.45 5.76 5.73 4.02 5.45 1995 4.14 3.98 4.13 5.79 6.68 6.45 7.84 7.57 6.05 ****** ****** ****** ****** 1996 3.86 4.50 4.74 5.64 5.74 7.26 7.88 6.84 7.28 5.82 4.27 3.82 5.64 1997 3.71 3.60 3.74 4.80 6.81 7.64 7.51 6.18 6.08 5.76 4.79 4.18 5.40 1998 3.78 3.86 4.65 6.24 7.89 7.64 9.34 9.10 8.36 6.12 4.72 4.41 6.34 1999 4.16 4.47 4.60 5.00 6.28 7.29 9.16 7.54 6.64 5.04 4.47 3.79 5.70 2000 3.96 3.94 4.15 6.45 8.20 5.76 5.28 5.42 5.17 5.75 3.82 ****** ****** 2001 3.12 3.82 5.88 10.84 11.02 14.10 9.57 10.84 11.02 5.91 4.60 4.65 7.95 2002 3.69 3.99 4.60 7.77 8.72 6.97 5.75 5.43 5.40 6.52 4.68 3.37 5.57 2003 3.46 3.51 4.38 6.15 7.77 8.48 7.09 6.98 5.96 6.83 4.71 3.46 5.73 MEAN 3.51 3.79 4.53 5.76 6.80 7.16 7.25 6.72 6.11 5.49 4.55 3.87 5.46 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. ABSOLUTE OF MINIMUM TEMPERATURE WITH DAY YEAR JAN. DAY FEB. DAY MAR. DAY APR. DAY MAY DAY JUNE DAY JULY DAY AUG. DAY SEP. DAY OCT. DAY NOV. DAY DEC. DAY ANNUAL 1964 -19.5 30 -14.0 28 -2.0 5 -1.5 16 3.0 4 11.5 5 15.0 29 11.0 23 3.5 27 -2.5 27 -4.0 27 -14.5 10 -19.5 1965 -14.0 19 -8.0 18 -7.5 16 0.0 7 4.5 21 9.6 24 12.0 29 8.0 24 8.0 25 2.0 29 -0.5 30 -9.5 24 -14.0 1966 -5.0 14 -1.5 22 -5.5 3 -0.5 5 4.0 11 12.0 1 13.0 8 11.5 11 7.0 20 -0.5 19 -8.0 25 -11.0 30 -11.0 1967 -14.5 7 -12.5 4 -10.5 1 -8.0 1 2.0 5 6.0 20 9.5 2 4.5 19 5.5 30 -0.5 24 -6.5 29 -18.5 25 -18.5 1968 -18.0 24 -19.0 5 -7.0 25 -2.5 7 0.5 3 8.0 10 7.5 14 8.0 28 4.0 19 3.0 17 -4.5 22 -11.0 31 -19.0 1969 -20.5 7 -16.5 1 -7.0 25 -2.0 15 4.5 13 7.0 1 9.0 10 12.5 2 2.0 14 0.5 15 -12.0 19 -3.5 29 -20.5 1970 -12.0 14 -7.0 2 -8.5 15 2.5 14 8.0 13 7.0 12 12.5 8 14.0 16 4.5 21 -3.5 24 -2.5 15 -14.0 16 -14.0 1971 -13.0 20 -9.0 3 -4.5 1 1.0 4 6.5 2 12.0 20 ***** ** 10.5 3 4.0 12 -1.0 12 -4.5 2 -13.5 22 ***** 1972 -23.5 25 -22.0 1 -8.0 18 -1.5 16 2.0 11 7.5 19 10.0 13 10.0 5 -1.0 19 2.0 20 -4.0 27 -16.0 26 -23.5 1973 -21.2 1 -15.5 7 -8.0 10 0.0 1 7.5 2 13.5 8 15.5 30 12.0 9 -1.5 30 0.0 1 -4.0 7 -11.0 15 -21.2 1974 -14.5 17 -19.5 4 -7.5 10 -1.6 2 4.0 3 10.0 13 16.0 17 9.5 31 6.0 30 0.0 14 -4.0 29 -12.5 28 -19.5 1975 -16.0 14 -12.5 14 -8.5 5 -5.0 6 3.5 5 10.0 9 15.0 1 13.0 19 8.0 30 -2.0 24 -8.6 7 -10.5 5 -16.0 1976 -5.5 15 -14.0 18 -8.5 13 -5.0 4 6.0 1 12.0 5 16.0 23 13.5 28 7.0 14 0.0 31 -6.5 10 -6.5 1 -14.0 1977 -25.0 14 -15.5 1 -0.5 1 1.5 3 8.5 8 12.5 1 13.5 1 10.5 31 6.0 7 0.0 24 -2.0 29 -11.5 26 -25.0 1978 -15.0 23 -13.0 15 -5.0 1 1.0 15 3.5 3 8.0 9 14.0 12 9.5 1 5.0 29 2.5 3 -4.5 30 -9.5 17 -15.0 1979 -12.5 27 -12.0 19 -10.0 7 -5.0 30 2.0 11 9.0 1 15.0 24 11.5 31 6.5 24 5.5 20 -3.0 22 -11.0 22 -12.5 1980 -16.0 25 -18.5 3 -5.0 5 2.5 4 7.0 12 10.5 13 12.0 1 10.5 31 7.0 10 -1.0 22 -1.5 26 -8.0 28 -18.5 1981 -8.5 4 -5.5 6 -1.5 1 -10.5 3 3.5 4 10.0 1 12.5 21 12.5 30 2.0 24 0.5 24 -2.5 25 -8.0 30 -10.5 1982 -13.5 13 -15.0 20 -8.0 3 0.0 1 4.0 12 11.0 1 ***** ** 8.5 27 5.5 22 -4.0 25 -3.0 18 -10.5 9 ***** 1983 -18.5 28 -8.5 1 -6.0 20 -0.5 13 4.0 4 9.0 3 15.0 4 14.0 12 6.5 16 0.0 22 -1.5 27 -11.5 19 -18.5 1984 -11.0 1 -16.5 7 -7.0 1 0.0 5 ***** ** 9.0 18 17.0 18 15.5 31 6.5 28 -0.5 22 -4.0 17 -13.0 30 ***** 1985 -14.5 5 -7.0 8 -11.0 11 2.0 8 6.0 1 10.0 12 13.0 19 10.5 28 6.5 24 1.0 24 -2.5 24 -6.5 27 -14.5 1986 -14.0 24 -7.0 4 -9.0 17 -3.0 1 6.0 18 11.5 12 14.0 10 10.0 10 8.0 12 1.0 17 -5.0 14 -14.0 12 -14.0 1987 -10.0 23 -10.5 12 -3.0 22 -1.5 2 3.0 8 8.5 1 10.5 5 12.5 31 9.0 10 -4.0 26 -1.5 27 -9.6 1 -10.5 1988 -11.0 22 -15.5 7 -3.5 7 -2.0 3 5.0 6 11.4 2 14.0 25 12.0 16 6.5 23 3.0 3 -5.2 29 -10.5 30 -15.5 1989 -18.0 5 -15.5 4 -4.0 1 -3.0 1 -1.0 3 12.5 2 14.0 28 9.5 21 5.5 23 1.5 25 -2.0 11 -2.5 10 -18.0 1990 -10.5 27 -7.5 9 -7.0 21 -1.0 2 6.5 16 11.0 1 12.5 14 12.5 31 6.0 26 -4.0 19 -3.0 18 -21.0 29 -21.0 1991 -15.0 1 -16.5 14 -12.5 13 -0.5 14 3.5 24 10.5 11 13.0 14 5.5 23 2.5 29 -0.5 14 -6.0 29 -9.0 27 -16.5 1992 -17.0 29 -12.0 17 -8.5 1 0.0 4 -1.0 6 10.5 2 ***** ** ***** ** ***** ** ***** ** -5.5 28 -9.4 31 ***** 1993 -19.0 21 -11.5 17 -9.5 16 0.0 1 1.5 10 9.0 1 14.5 25 11.0 27 6.0 18 ***** ** -7.0 23 -11.0 7 ***** 1994 -10.0 22 -10.5 4 -2.0 4 -5.0 5 4.0 8 9.5 6 12.0 4 11.0 11 3.0 27 -1.0 26 -1.5 11 -14.0 8 -14.0 1995 -6.0 10 -9.0 27 -6.5 5 1.5 9 5.0 29 9.0 2 15.5 1 12.5 17 6.0 29 ***** ** ***** ** ***** ** ***** 1996 -12.5 16 -10.0 7 -4.0 21 -3.5 5 6.5 2 9.5 19 14.5 2 8.5 30 7.0 26 -4.0 3 -8.5 13 -9.5 7 -12.5 1997 -12.5 30 -16.0 2 -8.5 20 -0.5 12 4.5 8 9.0 4 18.0 28 10.5 30 8.0 11 4.5 16 -3.5 30 -7.0 28 -16.0 1998 -9.5 12 -8.5 28 -8.0 4 0.5 8 1.5 4 10.5 2 8.0 26 12.0 27 5.0 13 -1.5 10 0.0 26 -4.0 22 -9.5 1999 -12.5 1 -5.0 2 -6.5 19 0.0 11 4.0 5 9.0 18 9.5 14 12.5 19 4.0 29 1.5 28 -6.5 28 -7.5 1 -12.5 2000 -12.5 11 -11.5 9 -12.5 16 0.5 3 4.5 23 2.5 19 4.0 31 5.5 31 2.5 24 1.5 10 -10.0 12 ***** ** ***** 2001 -13.5 31 -12.0 1 -8.5 11 1.0 1 0.0 2 5.0 2 7.0 16 9.5 15 8.5 21 1.0 29 -6.5 21 -4.5 4 -13.5 2002 -11.0 15 -13.0 6 -9.4 7 1.0 1 5.4 3 10.0 9 13.2 27 13.2 13 6.6 9 4.8 22 -5.0 30 -10.4 5 -13.0 2003 -11.6 22 -10.2 18 -8.4 3 -5.2 3 -1.0 3 6.4 7 11.4 2 13.4 13 4.2 30 3.0 25 -5.0 16 -13.4 13 -13.4 LOW. -25.0 14 -22.0 1 -12.5 13 -10.5 3 -1.0 3 2.5 19 4.0 31 4.5 19 -1.5 30 -4.0 25 -12.0 19 -21.0 29 -25.0 YEAR 1977 1972 1991 1981 1989 2000 2000 1967 1973 1982 1969 1990 1977 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. ABSOLUTE OF MAXIMUM TEMPERATURE WITH DAY YEAR JAN. DAY FEB. DAY MAR. DAY APR. DAY MAY DAY JUNE DAY JULY DAY AUG. DAY SEP. DAY OCT. DAY NOV. DAY DEC. DAY ANNUAL 1964 6.0 18 10.0 10 24.0 26 26.0 30 30.0 9 35.0 27 38.0 10 36.0 15 32.5 1 28.8 2 19.0 18 9.2 13 38.0 1965 10.5 10 14.0 28 21.5 11 27.5 29 32.0 18 33.0 17 39.0 13 34.0 25 32.0 18 27.0 15 21.0 8 16.0 7 39.0 1966 15.5 26 17.5 27 27.0 14 25.5 17 31.5 17 37.0 14 35.5 6 35.0 30 30.5 1 23.5 11 19.0 18 16.0 2 37.0 1967 15.0 17 12.5 25 20.0 7 24.5 21 31.5 31 39.0 16 38.0 20 34.0 21 33.0 13 25.0 12 21.5 2 14.0 18 39.0 1968 15.0 15 14.0 29 18.5 14 27.0 18 29.5 21 35.0 30 37.0 1 35.0 8 32.5 2 26.5 1 19.0 15 11.0 8 37.0 1969 7.5 19 12.0 28 22.5 11 28.0 5 32.5 27 34.0 14 38.5 3 33.0 4 32.5 10 29.5 6 19.0 2 15.5 25 38.5 1970 9.5 7 15.0 19 22.0 31 28.4 19 35.5 31 37.5 30 36.5 1 37.0 5 33.5 7 32.0 2 22.5 7 16.5 6 37.5 1971 16.5 7 15.0 23 24.5 14 26.5 25 32.5 23 34.5 25 ***** ** 36.5 22 33.0 1 26.0 6 18.0 4 16.0 9 ***** 1972 7.0 17 9.0 17 18.5 30 27.0 30 29.0 30 37.0 23 33.5 1 36.5 7 32.0 6 28.5 4 22.0 4 12.0 10 37.0 1973 8.5 15 15.5 17 20.0 21 27.0 29 32.5 30 35.0 12 38.5 11 34.5 3 31.5 1 29.0 11 23.5 2 14.5 28 38.5 1974 8.0 18 10.0 14 25.0 24 25.5 24 37.5 22 36.0 27 36.5 1 33.5 10 32.0 3 23.0 24 19.0 2 10.0 2 37.5 1975 8.5 3 15.5 24 21.0 27 27.0 15 31.5 30 35.5 15 37.0 3 36.0 15 34.5 13 29.0 3 18.0 1 11.0 10 37.0 1976 11.0 19 12.5 10 16.5 21 25.5 19 30.0 31 34.5 30 37.5 7 34.0 3 33.5 6 30.5 18 20.0 4 12.5 16 37.5 1977 6.0 9 16.0 21 27.0 20 26.0 15 29.0 15 38.0 20 36.5 12 37.5 17 31.5 12 30.0 3 16.5 13 15.0 6 38.0 1978 12.0 3 15.0 18 22.5 31 27.5 30 31.0 14 37.5 30 38.5 1 34.5 19 33.5 12 28.0 1 16.5 1 18.0 12 38.5 1979 14.5 4 14.5 16 19.5 20 29.0 9 29.5 25 34.5 25 38.0 8 33.5 17 34.5 12 29.0 5 24.0 3 15.0 1 38.0 1980 10.5 6 10.5 18 18.5 25 28.0 14 32.0 15 38.0 9 35.0 6 36.5 20 32.0 6 33.0 2 20.0 13 19.0 7 38.0 1981 11.5 18 14.0 9 22.0 26 27.0 26 32.5 28 33.0 17 35.5 12 34.0 9 34.0 14 23.0 12 21.5 5 15.0 17 35.5 1982 8.0 10 9.0 17 17.5 24 28.0 30 32.0 20 35.0 8 ***** ** 38.0 4 30.5 11 25.0 2 17.0 9 10.5 19 ***** 1983 12.5 2 12.0 20 16.5 5 26.0 22 28.5 13 36.0 22 38.5 26 36.0 15 34.0 5 29.5 4 22.5 1 15.0 2 38.5 1984 10.5 6 12.0 13 18.5 8 27.5 23 ***** ** 33.0 14 35.0 10 35.5 28 34.0 3 25.0 19 22.0 2 10.0 3 ***** 1985 10.5 26 17.5 26 21.0 22 30.5 23 31.0 17 35.5 22 36.5 28 31.0 22 31.5 7 30.5 1 22.5 13 16.0 3 36.5 1986 11.0 18 17.0 26 17.5 1 25.0 17 30.0 26 34.0 18 34.5 26 32.5 2 33.5 1 29.5 5 24.0 4 10.5 3 34.5 1987 14.0 26 18.5 26 19.5 3 27.0 17 31.5 24 34.0 5 38.0 25 34.0 2 34.5 6 28.5 6 24.0 3 16.5 24 38.0 1988 9.8 11 17.0 23 21.0 31 27.5 24 31.6 29 37.5 17 36.0 12 35.0 12 35.4 6 25.5 10 22.0 14 16.0 7 37.5 1989 11.0 23 10.0 28 20.0 26 26.0 19 33.0 28 36.0 24 38.0 9 39.5 11 35.0 14 29.5 8 19.0 29 18.0 1 39.5 1990 9.5 23 15.0 20 18.5 12 29.5 29 31.5 19 37.0 29 33.4 16 ***** ** 34.0 13 ***** ** ***** ** ***** ** ***** 1991 9.5 31 14.0 27 17.5 31 26.0 25 31.5 31 32.5 28 36.0 8 34.0 4 35.0 9 23.0 27 22.5 4 14.0 1 36.0 1992 10.0 21 14.0 23 12.0 17 22.0 13 26.0 30 33.0 19 ***** ** ***** ** ***** ** ***** ** 21.0 13 11.0 1 ***** 1993 10.5 27 11.5 3 15.0 11 25.0 19 28.0 20 33.5 19 30.0 1 30.0 14 32.5 4 ***** ** 20.0 1 13.5 23 ***** 1994 12.0 5 12.5 27 21.0 22 29.5 26 29.0 27 33.0 16 33.5 17 35.0 2 27.5 2 23.0 22 20.0 5 13.0 3 35.0 1995 13.0 31 13.5 2 17.5 25 26.0 4 28.5 6 34.0 30 35.5 13 34.5 19 30.5 20 ***** ** ***** ** ***** ** ***** 1996 11.5 6 11.5 18 15.5 25 24.0 22 29.5 18 33.0 2 30.0 2 33.5 27 34.0 12 25.0 11 19.0 7 15.0 10 34.0 1997 12.5 1 15.5 22 18.5 24 24.0 29 28.0 23 33.0 16 32.5 13 34.0 14 33.0 1 27.5 2 18.0 12 10.5 7 34.0 1998 7.5 13 11.5 25 20.0 30 28.0 18 27.5 12 32.0 28 37.5 6 33.0 18 32.5 2 30.0 2 23.5 1 22.5 10 37.5 1999 12.5 16 16.5 27 17.5 27 23.5 29 30.5 19 34.5 28 34.5 5 33.4 29 32.5 13 28.4 12 14.5 19 14.5 30 34.5 2000 17.5 1 35.0 14 20.0 25 29.5 23 33.5 27 34.0 1 32.0 9 ***** ** 29.5 7 27.0 28 20.5 1 ***** ** ***** 2001 13.5 4 15.5 28 22.0 22 29.5 9 34.0 16 38.5 8 34.0 22 39.0 23 31.6 18 31.5 2 19.0 7 14.0 30 39.0 2002 15.6 2 15.6 27 22.4 27 24.6 17 31.0 30 36.8 18 34.8 18 35.8 17 32.8 14 29.4 15 19.2 2 10.0 13 36.8 2003 11.2 12 12.4 10 16.4 21 29.2 10 27.6 8 42.4 20 36.2 19 30.4 14 29.4 12 26.6 16 20.6 3 15.2 10 42.4 HIG. 17.5 1 35.0 14 27.0 14 30.5 23 37.5 22 42.4 20 39.0 13 39.5 11 35.4 6 33.0 2 24.0 3 22.5 10 42.4 YEAR 2000 2000 1966 1985 1974 2003 1965 1989 1988 1980 1979 1998 2003 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. 24 HOUR MAXIMUM PRECIPITATION. YEAR JAN. DAY FEB. DAY MAR. DAY APR. DAY MAY DAY JUNE DAY JULY DAY AUG. DAY SEP. DAY OCT. DAY NOV. DAY DEC. DAY ANNUAL 1964 17.0 1 13.0 27 15.0 29 37.0 23 0.0 ** 0.0 ** 3.0 27 0.0 ** 0.0 ** 0.0 ** 9.0 28 8.0 26 37.0 1965 34.0 11 16.0 14 12.5 4 17.0 15 11.5 3 4.0 6 0.0 ** 0.0 ** 6.5 21 5.5 30 15.0 10 6.0 29 34.0 1966 30.0 14 25.8 3 36.0 1 23.2 14 5.5 27 0.0 ** 1.8 17 0.0 ** 0.0 ** 13.0 15 0.0 ** 12.0 20 36.0 1967 16.0 22 21.8 15 12.0 16 20.5 16 21.0 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 13.6 23 14.5 13 5.0 24 21.8 1968 8.0 16 15.0 23 19.8 17 17.0 23 23.0 22 3.0 6 0.0 ** 0.0 ** 0.0 ** 10.4 28 18.0 19 19.0 10 23.0 1969 33.0 23 16.6 22 24.0 16 11.2 14 12.5 17 1.5 23 0.0 ** 0.0 ** 5.8 12 13.3 29 13.8 10 9.4 7 33.0 1970 12.6 23 8.0 14 11.0 5 10.4 11 20.0 18 0.0 ** 21.0 16 0.0 ** 0.0 ** 0.0 ** 1.6 14 10.0 15 21.0 1971 9.0 19 49.4 15 9.4 25 50.0 7 3.0 19 0.0 ** ***** ** 0.0 ** 0.0 ** 5.0 30 15.0 11 20.0 21 ***** 1972 20.0 18 16.6 9 34.0 7 19.0 26 19.6 7 10.0 26 0.0 ** 0.0 ** 7.0 18 8.0 9 18.0 29 13.0 15 34.0 1973 8.0 12 53.0 23 48.0 23 12.8 13 19.0 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.4 18 5.6 7 9.0 10 53.0 1974 12.0 16 19.0 27 16.0 2 16.0 11 6.5 1 15.0 11 1.4 21 0.0 ** 0.0 ** 0.0 ** 0.2 28 18.0 23 19.0 1975 12.0 25 31.0 26 8.0 28 26.0 24 7.0 14 10.0 3 0.0 ** 0.0 ** 0.0 ** 1.4 17 11.0 12 27.0 24 31.0 1976 14.0 31 40.0 11 26.0 22 27.0 22 15.6 8 10.0 8 4.6 22 0.0 ** 0.0 ** 12.0 30 5.5 28 18.0 31 40.0 1977 27.0 8 16.0 24 13.0 27 10.0 21 11.6 26 8.0 2 0.0 ** 2.0 19 0.0 ** 21.0 23 12.4 1 18.0 23 27.0 1978 22.8 21 34.0 12 9.0 7 13.0 15 17.0 2 7.6 20 0.0 ** 0.0 ** 0.0 ** 0.0 ** 18.0 1 13.0 3 34.0 1979 22.2 24 33.0 9 19.0 28 20.6 17 6.0 7 8.0 11 0.0 ** 0.0 ** 0.0 ** 9.0 27 11.5 5 21.0 9 33.0 1980 22.8 14 23.0 12 15.0 19 19.0 4 7.0 27 1.6 1 0.0 ** 0.0 ** 17.0 23 9.4 21 10.0 19 5.0 26 23.0 1981 13.4 2 18.0 22 43.5 28 27.5 2 15.6 1 0.8 29 1.5 17 0.0 ** 0.8 23 10.0 19 15.0 21 15.0 30 43.5 1982 28.0 14 27.0 18 23.0 19 8.0 22 9.4 23 0.0 ** ***** ** 0.0 ** 0.0 ** 9.6 29 8.0 1 18.6 29 ***** 1983 23.0 25 15.6 19 20.6 7 14.4 5 5.0 10 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 10.2 16 17.5 12 23.0 1984 18.0 30 6.0 5 21.5 23 13.0 19 ***** ** 4.2 1 0.0 ** 0.0 ** 0.0 ** 1.6 8 19.0 16 18.4 1 ***** 1985 17.0 17 15.5 2 6.0 8 18.0 4 8.0 12 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.0 12 13.5 28 17.5 5 18.0 1986 8.0 23 19.0 11 30.0 8 20.5 21 11.5 11 3.0 3 2.0 21 0.0 ** 0.0 ** 0.0 ** 10.0 30 35.0 31 35.0 1987 11.5 12 34.0 11 19.0 29 18.5 5 15.0 19 0.0 ** 5.0 23 0.0 ** 3.0 20 24.0 9 5.5 27 17.4 29 34.0 1988 22.0 19 25.5 3 35.0 5 16.0 29 10.0 20 0.0 ** 6.0 29 0.0 ** 7.0 1 1.5 16 20.0 15 11.5 18 35.0 1989 12.0 24 10.8 23 15.0 29 16.0 30 16.0 29 0.0 ** 0.0 ** 5.0 21 0.0 ** 0.0 ** 17.0 1 20.0 15 20.0 1990 10.0 25 24.0 16 3.0 15 8.5 8 11.0 1 0.0 ** 0.5 6 0.0 ** 0.0 ** 2.5 28 8.5 14 9.5 25 24.0 1991 15.0 15 16.0 2 27.0 7 8.5 7 15.0 11 1.5 3 1.5 15 0.0 ** 1.5 16 6.0 17 3.5 7 23.0 15 27.0 1992 21.0 17 18.0 11 30.0 31 20.0 23 25.0 13 6.0 15 ***** ** ***** ** ***** ** ***** ** 7.0 27 18.0 4 ***** 1993 16.0 8 40.0 5 12.0 7 31.0 13 13.0 29 3.0 4 0.5 28 0.0 ** 0.0 ** ***** ** 29.0 29 10.0 6 ***** 1994 13.0 6 6.0 9 31.0 13 11.0 19 5.0 7 0.0 ** 0.0 ** 0.5 26 0.0 ** 17.5 3 36.0 18 18.0 1 36.0 1995 9.0 18 19.5 7 26.5 18 10.0 16 5.0 8 0.0 ** 0.0 ** 0.0 ** 11.5 22 ***** ** ***** ** ***** ** ***** 1996 12.0 20 20.5 3 38.0 3 20.0 28 39.5 21 2.0 28 0.0 ** 0.0 ** 0.0 ** 24.5 17 24.0 12 16.0 15 39.5 1997 12.5 17 12.0 1 24.5 24 9.0 18 13.5 5 28.0 18 0.0 ** 0.0 ** 0.0 ** 8.0 24 23.5 1 11.5 11 28.0 1998 25.0 14 50.5 9 20.5 26 15.0 23 11.0 12 0.0 ** 0.0 ** 0.0 ** 0.5 11 3.0 24 0.0 ** 12.0 31 50.5 1999 6.0 16 13.0 4 16.0 3 5.0 21 7.5 10 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 13.0 28 17.0 4 17.0 2000 9.0 29 15.0 14 7.5 21 0.0 ** 0.0 ** 9.0 13 0.0 ** 0.0 ** 5.0 29 7.0 16 11.0 29 ***** ** ***** 2001 4.0 20 25.5 5 18.0 25 7.5 19 20.5 8 3.5 15 0.0 ** 3.0 13 0.0 ** 12.5 24 7.5 20 21.0 15 25.5 2002 18.2 12 13.6 21 15.5 21 17.2 13 16.4 5 0.0 ** 5.2 20 0.6 12 0.0 ** 6.0 16 20.0 15 11.2 22 20.0 2003 28.4 29 17.8 14 15.4 15 29.8 15 27.8 24 8.0 16 0.0 ** 0.0 ** 0.0 ** 3.6 28 10.2 15 9.2 7 29.8 HIG. 34.0 11 53.0 23 48.0 23 50.0 7 39.5 21 28.0 18 21.0 16 5.0 21 17.0 23 24.5 17 36.0 18 35.0 31 53.0 YEAR 1965 1973 1973 1971 1996 1997 1970 1989 1980 1996 1994 1986 1973 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1964 36.4 60.0 76.5 103.5 0.0 0.0 3.0 0.0 0.0 0.0 22.0 16.0 317.4 54.5 32.6 0.9 12.0 1965 217.4 30.3 41.0 31.0 25.5 5.5 0.0 0.0 11.3 11.8 25.3 8.3 407.4 70.9 15.2 2.8 11.1 1966 42.8 61.3 85.4 75.7 14.0 0.0 1.8 0.0 0.0 22.0 0.0 19.0 322.0 58.9 27.9 0.6 12.7 1967 29.3 53.2 43.8 91.0 43.8 0.0 0.0 0.0 0.0 30.5 22.8 10.6 325.0 38.9 41.5 0.0 19.7 1968 34.2 42.9 110.8 38.3 56.0 6.1 0.0 0.0 0.0 12.4 65.4 89.9 456.0 41.2 22.0 0.0 36.8 1969 109.2 36.8 93.6 71.4 25.3 1.5 0.0 0.0 5.8 27.5 38.8 38.7 448.6 53.4 21.9 1.3 23.4 1970 47.2 10.2 44.4 20.2 22.6 0.0 25.4 0.0 0.0 0.0 2.0 24.6 196.6 51.8 21.8 12.9 13.5 1971 19.4 109.0 25.4 102.4 3.0 0.0 ****** 0.0 0.0 5.0 36.6 30.0 ****** 46.5 31.9 0.0 21.6 1972 61.4 30.6 125.3 55.8 83.3 30.2 0.0 0.0 9.5 11.4 18.0 31.0 456.5 47.6 37.1 2.1 13.2 1973 32.9 93.4 100.7 40.8 26.6 0.0 0.0 0.0 0.0 0.4 6.6 15.0 316.4 71.7 21.3 0.0 7.0 1974 49.8 42.4 62.7 44.6 21.5 17.0 1.4 0.0 0.0 0.0 0.2 56.6 296.2 52.3 28.1 0.5 19.2 1975 56.8 76.9 23.9 46.2 22.4 10.0 0.0 0.0 0.0 1.4 31.0 55.6 324.2 48.6 24.2 0.0 27.1 1976 41.8 84.9 82.4 99.2 22.8 25.3 4.6 0.0 0.0 14.0 9.9 48.4 433.3 48.3 34.0 1.1 16.7 1977 93.5 34.0 22.0 22.0 44.1 12.6 0.0 2.0 0.0 67.2 43.8 60.7 401.9 37.2 19.6 0.5 42.7 1978 52.4 65.6 17.2 49.8 39.2 7.6 0.0 0.0 0.0 0.0 44.2 33.6 309.6 43.7 31.2 0.0 25.1 1979 70.0 69.8 84.0 26.6 8.0 8.8 0.0 0.0 0.0 9.0 11.5 69.6 357.3 62.6 12.1 0.0 25.2 1980 74.4 55.2 50.0 21.4 16.0 1.6 0.0 0.0 17.0 13.4 16.8 13.2 279.0 64.4 14.0 6.1 15.6 1981 49.2 53.9 108.3 91.2 37.4 1.2 1.5 0.0 1.0 20.5 24.0 33.5 421.7 50.1 30.8 0.6 18.5 1982 66.5 87.8 113.5 15.8 24.4 0.0 ****** 0.0 0.0 25.4 27.5 45.4 ****** 65.9 9.9 0.0 24.2 1983 65.5 28.4 51.6 45.4 19.0 0.0 0.0 0.0 0.0 0.0 21.8 53.0 284.7 51.1 22.6 0.0 26.3 1984 28.5 21.6 75.1 57.5 ****** 4.2 0.0 0.0 0.0 3.2 32.6 37.4 ****** 48.1 23.7 0.0 28.1 1985 74.0 34.3 23.8 31.5 12.1 0.0 0.0 0.0 0.0 7.0 32.5 60.9 276.1 47.8 15.8 0.0 36.4 1986 15.0 51.2 52.0 59.1 22.0 8.1 2.0 0.0 0.0 0.0 15.0 143.5 367.9 32.1 24.2 0.5 43.1 1987 11.5 51.1 93.5 43.0 36.0 0.0 17.0 0.0 3.0 45.0 11.0 42.2 353.3 44.2 22.4 5.7 27.8 1988 55.2 76.1 84.0 110.0 18.0 0.0 9.0 0.0 7.0 1.5 20.0 30.5 411.3 52.3 31.1 3.9 12.6 1989 66.1 38.2 46.5 16.0 38.0 0.0 0.0 5.0 0.0 0.0 44.0 71.0 324.8 46.4 16.6 1.5 35.4 1990 45.0 55.0 6.5 29.0 14.5 0.0 0.5 0.0 0.0 6.0 8.5 35.0 200.0 53.3 21.8 0.3 24.8 1991 58.0 57.0 131.5 36.0 47.0 1.5 1.5 0.0 1.5 8.5 5.0 79.5 427.0 57.7 19.8 0.7 21.8 1992 86.5 49.5 109.0 111.0 63.5 24.0 ****** ****** ****** ****** 7.0 77.5 ****** 46.4 37.6 ***** 16.0 1993 72.0 134.5 67.5 73.0 59.5 5.5 0.5 0.0 0.0 ****** 61.5 10.0 ****** 56.6 28.5 0.1 14.8 1994 65.0 20.0 84.5 29.5 11.0 0.0 0.0 0.5 0.0 29.0 65.0 38.5 343.0 49.4 11.8 0.1 38.6 1995 12.9 75.5 58.5 67.5 8.0 0.0 0.0 0.0 11.5 ****** ****** ****** ****** 62.8 32.3 4.9 ***** 1996 32.0 70.0 170.5 70.0 52.5 2.0 0.0 0.0 0.0 35.5 24.0 23.0 479.5 56.8 26.0 0.0 17.2 1997 29.0 19.5 99.5 56.0 34.0 88.0 0.0 0.0 0.0 18.0 36.0 48.0 428.0 34.6 41.6 0.0 23.8 1998 106.5 130.5 49.5 34.0 28.0 0.0 0.0 0.0 0.5 3.0 0.0 34.0 386.0 74.2 16.1 0.1 9.6 1999 21.0 41.5 57.5 13.5 8.5 0.0 0.0 0.0 0.0 0.0 30.0 23.0 195.0 61.5 11.3 0.0 27.2 2000 26.0 42.5 21.5 0.0 0.0 9.0 0.0 0.0 9.0 7.0 24.0 ****** ****** 64.7 6.5 6.5 22.3 2001 8.5 36.5 58.5 7.5 36.0 7.0 0.0 3.0 0.0 12.5 22.0 96.5 288.0 35.9 17.5 1.0 45.5 2002 56.0 47.0 60.2 72.5 31.1 0.0 5.2 0.6 0.0 7.0 32.4 34.8 346.8 47.1 29.9 1.7 21.4 2003 46.1 57.2 75.5 81.7 97.0 8.0 0.0 0.0 0.0 3.6 23.4 32.0 424.5 42.1 44.0 0.0 13.9 MEAN 54.1 55.9 69.7 52.3 30.0 7.1 2.0 0.3 2.0 12.4 24.7 43.9 354.4 50.8 25.3 1.1 22.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 6 7 13 10 0 0 1 0 0 0 4 3 44 1965 12 4 7 2 4 2 0 0 2 4 3 2 42 1966 4 5 5 12 5 0 1 0 0 4 0 4 40 1967 3 7 5 13 5 0 0 0 0 4 5 4 46 1968 7 6 11 5 7 4 0 0 0 2 9 12 63 1969 11 6 13 8 6 1 0 0 1 4 4 9 63 1970 7 2 10 3 3 0 2 0 0 0 2 6 35 1971 3 8 6 5 1 0 *** 0 0 1 4 6 *** 1972 8 3 17 8 9 8 0 0 2 2 1 6 64 1973 8 7 7 5 3 0 0 0 0 1 2 3 36 1974 7 7 7 7 5 2 1 0 0 0 1 5 42 1975 9 8 6 5 6 1 0 0 0 1 5 6 47 1976 7 8 12 10 4 4 1 0 0 3 3 8 60 1977 8 3 2 4 8 3 0 1 0 8 8 9 54 1978 7 8 4 6 5 1 0 0 0 0 7 7 45 1979 8 6 13 2 2 2 0 0 0 1 1 11 46 1980 9 7 8 3 5 1 0 0 1 3 3 4 44 1981 7 8 11 9 6 2 1 0 2 4 2 3 55 1982 6 12 11 4 5 0 *** 0 0 7 6 6 *** 1983 8 3 7 6 5 0 0 0 0 0 3 7 39 1984 5 7 8 7 *** 1 0 0 0 2 5 6 *** 1985 8 5 8 5 4 0 0 0 0 1 4 11 46 1986 5 7 5 8 5 4 1 0 0 0 3 8 46 1987 1 5 15 6 5 0 6 0 1 4 3 4 50 1988 9 6 8 12 3 0 2 0 1 1 1 6 49 1989 9 5 5 1 5 0 0 1 0 0 3 8 37 1990 10 8 3 10 4 0 1 0 0 3 1 8 48 1991 8 8 16 10 8 1 1 0 1 2 2 6 63 1992 9 5 10 11 7 6 *** *** *** *** 1 10 *** 1993 8 10 9 10 12 3 1 0 0 *** 9 1 *** 1994 9 5 9 5 3 0 0 1 0 5 5 4 46 1995 3 8 6 16 3 0 0 0 1 *** *** *** *** 1996 4 7 14 8 4 1 0 0 0 3 1 3 45 1997 4 4 11 10 6 7 0 0 0 4 5 11 62 1998 10 9 7 4 6 0 0 0 1 1 0 4 42 1999 5 5 8 5 2 0 0 0 0 0 4 2 31 2000 5 6 4 0 0 1 0 0 2 1 4 *** *** 2001 3 3 7 1 4 2 0 1 0 1 6 10 38 2002 6 8 9 15 3 0 1 1 0 2 3 10 58 2003 6 9 13 7 7 1 0 0 0 1 4 7 55 MEAN 7 6 9 7 5 1 1 0 0 2 4 6 48 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. NO. OF DAYS PRECIPITATION EQUAL OR MORE THAN 1 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 5 7 13 10 0 0 1 0 0 0 4 3 43 1965 12 3 7 2 4 2 0 0 2 2 3 2 39 1966 4 5 5 12 5 0 1 0 0 4 0 4 40 1967 3 7 5 13 5 0 0 0 0 4 4 4 45 1968 7 6 11 5 7 3 0 0 0 2 9 11 61 1969 11 3 12 8 6 1 0 0 1 4 4 9 59 1970 7 2 9 3 3 0 2 0 0 0 1 5 32 1971 3 8 6 5 1 0 *** 0 0 1 4 5 *** 1972 8 3 17 8 9 7 0 0 2 2 1 6 63 1973 6 7 7 5 3 0 0 0 0 0 2 3 33 1974 7 7 7 6 5 2 1 0 0 0 0 5 40 1975 9 8 5 5 5 1 0 0 0 1 5 6 45 1976 7 8 11 10 4 4 1 0 0 2 3 5 55 1977 8 3 2 4 7 3 0 1 0 8 7 8 51 1978 7 8 4 6 5 1 0 0 0 0 6 6 43 1979 7 5 12 2 2 1 0 0 0 1 1 10 41 1980 9 7 7 2 4 1 0 0 1 2 2 4 39 1981 7 8 11 9 6 0 1 0 0 4 2 3 51 1982 6 12 11 3 5 0 *** 0 0 6 6 6 *** 1983 8 3 6 6 5 0 0 0 0 0 3 7 38 1984 5 6 8 7 *** 1 0 0 0 2 4 6 *** 1985 8 4 7 5 3 0 0 0 0 1 4 11 43 1986 5 7 5 8 5 3 1 0 0 0 3 8 45 1987 1 5 15 6 5 0 6 0 1 4 3 4 50 1988 8 6 8 12 3 0 2 0 1 1 1 6 48 1989 9 5 5 1 5 0 0 1 0 0 3 8 37 1990 10 8 3 8 2 0 0 0 0 3 1 8 43 1991 8 8 16 10 7 1 1 0 1 2 2 6 62 1992 9 5 10 11 7 6 *** *** *** *** 1 10 *** 1993 8 10 9 10 11 3 0 0 0 *** 8 1 *** 1994 9 5 9 5 3 0 0 0 0 5 5 4 45 1995 2 7 6 15 3 0 0 0 1 *** *** *** *** 1996 4 7 14 8 4 1 0 0 0 3 1 3 45 1997 4 4 10 9 6 7 0 0 0 4 5 11 60 1998 10 9 7 4 5 0 0 0 0 1 0 4 40 1999 5 5 8 5 2 0 0 0 0 0 4 2 31 2000 5 6 4 0 0 1 0 0 2 1 4 *** *** 2001 3 3 7 1 4 2 0 1 0 1 6 10 38 2002 6 7 9 13 3 0 1 0 0 2 3 9 53 2003 4 9 12 7 7 1 0 0 0 1 4 6 51 MEAN 7 6 9 7 5 1 0 0 0 2 3 6 46 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. NO. OF DAYS PRECIPITATION EQUAL OR MORE THAN 10 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 2 3 3 4 0 0 0 0 0 0 0 0 12 1965 8 2 1 2 1 0 0 0 0 0 1 0 15 1966 1 3 3 2 0 0 0 0 0 1 0 1 11 1967 2 2 3 3 2 0 0 0 0 1 1 0 14 1968 0 2 6 2 2 0 0 0 0 1 2 4 19 1969 4 2 3 4 1 0 0 0 0 1 2 0 17 1970 1 0 2 1 1 0 1 0 0 0 0 1 7 1971 0 2 0 3 0 0 *** 0 0 0 1 1 *** 1972 3 2 4 2 3 1 0 0 0 0 1 2 18 1973 0 2 3 2 1 0 0 0 0 0 0 0 8 1974 1 1 3 2 0 1 0 0 0 0 0 3 11 1975 2 3 0 2 0 1 0 0 0 0 2 2 12 1976 2 3 2 4 1 1 0 0 0 1 0 2 16 1977 4 2 1 1 2 0 0 0 0 4 1 2 17 1978 1 2 0 2 1 0 0 0 0 0 2 1 9 1979 3 3 3 1 0 0 0 0 0 0 1 2 13 1980 3 2 2 1 0 0 0 0 1 0 1 0 10 1981 2 2 3 3 1 0 0 0 0 1 1 2 15 1982 2 2 4 0 0 0 *** 0 0 0 0 2 *** 1983 3 1 2 2 0 0 0 0 0 0 1 2 11 1984 1 0 3 2 *** 0 0 0 0 0 1 1 *** 1985 4 2 0 1 0 0 0 0 0 0 1 2 10 1986 0 2 1 2 1 0 0 0 0 0 1 6 13 1987 1 1 4 2 1 0 0 0 0 2 0 2 13 1988 1 5 3 6 1 0 0 0 0 0 1 1 18 1989 3 2 2 1 2 0 0 0 0 0 3 4 17 1990 1 2 0 0 1 0 0 0 0 0 0 0 4 1991 3 2 6 0 1 0 0 0 0 0 0 4 16 1992 4 3 5 6 3 0 *** *** *** *** 0 3 *** 1993 4 5 3 2 1 0 0 0 0 *** 1 1 *** 1994 2 0 3 1 0 0 0 0 0 1 2 2 11 1995 0 4 1 2 0 0 0 0 1 *** *** *** *** 1996 1 3 6 2 1 0 0 0 0 1 1 1 16 1997 1 1 4 0 1 4 0 0 0 0 1 1 13 1998 4 5 1 2 1 0 0 0 0 0 0 2 15 1999 0 3 3 0 0 0 0 0 0 0 1 1 8 2000 0 1 0 0 0 0 0 0 0 0 1 *** *** 2001 0 1 2 0 1 0 0 0 0 1 0 5 10 2002 3 2 3 2 2 0 0 0 0 0 1 1 14 2003 2 1 3 4 4 0 0 0 0 0 1 0 15 MEAN 2 2 3 2 1 0 0 0 0 0 1 2 13 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 36 63 58 56 36 29 33 29 35 38 54 39 42 1965 58 65 62 46 36 34 27 31 45 60 69 68 50 1966 71 70 69 64 52 37 37 37 37 61 64 72 56 1967 73 81 69 73 58 28 38 31 42 59 70 74 58 1968 81 80 70 70 53 42 37 40 38 50 76 80 60 1969 85 85 72 65 59 39 48 36 48 57 73 76 62 1970 85 76 71 55 44 36 41 34 49 49 55 79 56 1971 82 81 63 68 48 37 *** 35 38 53 72 74 *** 1972 87 85 82 63 67 60 39 37 46 54 67 84 64 1973 86 85 81 66 62 41 37 47 50 44 74 77 63 1974 90 86 75 63 53 49 43 43 47 49 61 75 61 1975 84 86 79 65 57 38 31 41 47 61 80 86 63 1976 85 84 90 77 58 49 39 36 46 52 76 88 65 1977 *** 89 68 65 63 47 42 43 45 62 79 81 *** 1978 84 86 76 67 66 48 41 39 46 58 83 81 65 1979 82 87 84 62 54 48 34 36 52 52 49 82 60 1980 83 81 76 57 55 43 39 42 46 56 73 73 60 1981 82 80 76 69 63 55 47 43 45 62 60 70 63 1982 75 80 80 60 59 48 *** 40 45 72 82 85 *** 1983 84 77 75 70 58 47 38 44 49 49 65 83 62 1984 85 89 75 66 *** 46 36 40 47 50 68 83 *** 1985 87 76 78 58 49 38 41 44 42 61 69 84 61 1986 79 84 86 72 61 50 52 43 43 59 71 85 65 1987 75 78 77 72 59 48 47 52 66 79 73 72 67 1988 84 79 72 73 68 52 45 50 47 61 60 72 64 1989 89 86 77 62 59 44 43 46 52 61 76 74 64 1990 88 90 71 71 60 43 48 41 41 52 64 74 62 1991 91 89 87 78 66 55 51 42 55 66 71 77 69 1992 90 80 82 74 77 66 *** *** *** *** 66 86 *** 1993 89 87 85 72 70 61 44 48 53 *** 71 82 *** 1994 87 86 80 71 59 43 42 41 46 66 71 86 65 1995 90 82 72 74 54 46 41 43 53 *** *** *** *** 1996 89 87 90 77 57 46 43 45 52 66 73 83 67 1997 91 87 76 61 56 57 38 36 41 55 80 87 64 1998 91 86 75 59 57 45 49 51 49 53 61 72 62 1999 87 87 81 65 61 47 50 39 50 58 80 65 64 2000 82 84 75 51 52 40 39 45 42 55 66 *** *** 2001 72 84 73 61 62 62 39 38 45 49 67 82 61 2002 76 79 73 80 74 51 35 33 43 47 70 73 61 2003 72 74 71 60 64 56 48 38 44 48 64 72 59 MEAN 82 82 76 66 58 46 41 40 46 56 69 77 62 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 55 57 42 41 28 14 19 17 19 21 41 55 34 1965 70 56 42 25 22 17 16 16 25 35 43 49 35 1966 48 47 44 44 34 23 23 20 23 36 33 42 35 1967 58 73 45 57 37 20 23 19 20 39 47 56 41 1968 64 67 58 48 35 25 19 18 19 28 49 71 42 1969 87 83 58 48 36 24 24 23 27 36 58 51 46 1970 69 47 52 31 24 25 24 24 29 27 31 59 37 1971 66 59 48 42 25 23 *** 18 21 30 52 49 *** 1972 87 81 70 40 45 33 21 24 25 29 37 70 47 1973 81 61 60 44 42 24 24 26 28 28 39 49 42 1974 84 85 60 44 34 23 25 26 30 33 36 68 46 1975 72 78 50 37 32 24 20 25 28 34 53 72 44 1976 65 80 72 55 33 28 25 24 27 36 45 63 46 1977 *** 58 42 42 41 28 26 28 24 46 55 66 *** 1978 66 64 52 35 42 29 25 22 22 31 67 65 43 1979 68 72 71 42 31 25 19 21 26 29 32 66 42 1980 73 76 60 39 31 27 22 26 24 33 48 53 43 1981 63 63 50 42 39 29 28 25 26 44 41 51 42 1982 82 76 64 33 36 29 *** 26 25 52 64 71 *** 1983 76 56 54 45 36 29 23 26 28 26 39 75 43 1984 63 72 53 42 *** 26 22 22 28 31 51 79 *** 1985 71 48 54 32 25 21 25 26 24 37 49 69 40 1986 66 65 66 51 34 34 36 22 26 32 45 76 46 1987 54 57 55 46 37 27 29 39 49 54 41 45 44 1988 68 63 50 51 38 28 34 34 32 41 39 55 44 1989 84 76 55 38 36 26 29 28 31 40 47 56 46 1990 80 73 46 39 31 23 33 23 22 28 35 62 41 1991 79 73 70 52 41 31 29 21 29 37 44 59 47 1992 80 66 69 49 53 37 *** *** *** *** 56 70 *** 1993 80 71 71 42 48 34 28 28 31 *** 57 62 *** 1994 66 66 50 44 35 28 26 24 28 43 54 82 46 1995 56 57 46 45 30 27 29 22 27 *** *** *** *** 1996 84 70 72 46 36 31 30 30 30 43 51 49 48 1997 58 59 53 37 33 36 23 25 28 35 52 71 43 1998 69 68 56 40 38 30 30 32 36 44 47 48 45 1999 72 63 60 38 37 27 35 26 33 38 62 47 45 2000 67 67 49 32 39 31 23 23 25 43 68 *** *** 2001 57 57 70 72 59 58 45 45 55 45 46 63 56 2002 70 60 55 61 47 27 23 19 20 26 47 65 43 2003 59 62 65 52 59 42 27 30 27 34 41 50 46 MEAN 70 66 56 44 37 28 26 25 28 36 47 61 44 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 49 61 49 44 32 17 22 20 21 28 46 53 37 1965 71 54 44 34 22 21 19 19 30 40 50 58 39 1966 57 54 57 50 36 25 26 26 28 45 43 56 42 1967 70 75 51 62 45 25 28 19 31 43 57 68 48 1968 73 77 62 51 39 33 24 23 26 35 61 79 49 1969 88 82 62 51 42 28 18 26 28 42 66 63 50 1970 82 60 57 37 28 31 31 25 33 33 43 68 44 1971 77 71 52 48 30 25 *** 23 23 36 60 64 *** 1972 90 84 75 45 52 39 23 27 28 39 48 76 52 1973 85 71 72 47 46 26 28 30 31 35 51 66 49 1974 85 91 63 55 38 28 27 27 32 38 52 78 51 1975 80 81 54 45 40 27 22 27 32 41 62 82 49 1976 76 82 77 59 37 35 27 25 31 40 57 80 52 1977 *** 66 45 47 48 31 30 31 27 54 70 74 *** 1978 79 83 64 39 49 35 28 25 29 40 77 78 52 1979 80 78 76 45 33 30 20 29 37 39 41 79 49 1980 80 84 70 44 38 35 24 28 30 43 57 63 50 1981 74 72 62 54 48 37 34 29 31 51 52 66 51 1982 77 80 75 42 42 36 *** 33 30 65 76 83 *** 1983 82 73 69 53 44 30 23 25 29 35 53 83 50 1984 85 83 64 48 *** 29 28 24 32 39 63 87 *** 1985 83 60 69 41 28 24 27 30 28 45 60 77 48 1986 76 76 69 55 40 41 40 28 29 41 61 84 53 1987 73 68 65 50 40 32 33 41 53 63 47 59 52 1988 84 76 62 59 48 31 36 37 34 48 53 67 53 1989 89 87 65 41 44 34 30 29 36 48 57 71 53 1990 83 77 58 53 40 29 40 29 30 45 44 72 50 1991 88 84 80 61 56 43 34 27 40 50 55 73 58 1992 87 81 81 64 68 51 *** *** *** *** 59 80 *** 1993 88 78 76 55 59 46 34 35 43 *** 68 73 *** 1994 73 73 64 49 44 36 32 29 31 57 66 83 53 1995 78 70 57 56 46 34 30 31 37 *** *** *** *** 1996 89 82 73 59 41 37 37 32 36 51 63 68 56 1997 77 74 62 45 47 40 30 26 34 46 65 79 52 1998 87 82 62 52 54 37 42 42 44 46 46 57 54 1999 80 70 68 49 44 34 44 34 39 37 66 59 52 2000 79 78 57 39 43 27 25 24 27 52 66 *** *** 2001 70 70 73 70 66 62 40 42 48 39 55 72 59 2002 76 71 55 77 62 34 27 22 26 44 56 70 52 2003 68 66 66 55 63 50 30 32 33 48 49 57 51 MEAN 79 75 64 51 44 34 30 28 32 44 57 71 51 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. NO. OF DAYS MINIMUM TEMPERATURE EQUAL OR LESS THAN -4 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 28 13 0 0 0 0 0 0 0 0 1 25 67 1965 17 16 5 0 0 0 0 0 0 0 0 6 44 1966 3 0 4 0 0 0 0 0 0 0 6 15 28 1967 23 17 6 4 0 0 0 0 0 0 3 19 72 1968 23 19 5 0 0 0 0 0 0 0 2 7 56 1969 26 22 2 0 0 0 0 0 0 0 6 0 56 1970 19 3 2 0 0 0 0 0 0 0 0 14 38 1971 19 8 1 0 0 0 *** 0 0 0 1 11 *** 1972 28 27 12 0 0 0 0 0 0 0 1 17 85 1973 25 5 3 0 0 0 0 0 0 0 2 15 50 1974 28 19 8 0 0 0 0 0 0 0 1 23 79 1975 25 19 8 1 0 0 0 0 0 0 4 10 67 1976 8 14 7 1 0 0 0 0 0 0 12 14 56 1977 29 9 0 0 0 0 0 0 0 0 0 7 45 1978 19 15 2 0 0 0 0 0 0 0 3 5 44 1979 10 4 9 1 0 0 0 0 0 0 0 4 28 1980 18 19 1 0 0 0 0 0 0 0 0 7 45 1981 13 9 0 1 0 0 0 0 0 0 0 3 26 1982 18 25 9 0 0 0 *** 0 0 1 0 29 *** 1983 19 19 8 0 0 0 0 0 0 0 0 16 62 1984 21 23 1 0 *** 0 0 0 0 0 1 27 *** 1985 18 6 14 0 0 0 0 0 0 0 0 10 48 1986 14 6 13 0 0 0 0 0 0 0 7 14 54 1987 18 9 0 0 0 0 0 0 0 1 0 7 35 1988 22 13 0 0 0 0 0 0 0 0 1 8 44 1989 30 26 1 0 0 0 0 0 0 0 0 0 57 1990 21 14 7 0 0 0 0 0 0 1 0 19 62 1991 25 21 6 0 0 0 0 0 0 0 4 15 71 1992 23 17 12 0 0 0 *** *** *** *** 2 1 *** 1993 25 11 11 0 0 0 0 0 0 *** 5 5 *** 1994 18 15 0 2 0 0 0 0 0 0 0 15 50 1995 13 7 6 0 0 0 0 0 0 *** *** *** *** 1996 18 11 1 0 0 0 0 0 0 1 6 8 45 1997 14 17 8 0 0 0 0 0 0 0 0 5 44 1998 13 16 7 0 0 0 0 0 0 0 0 1 37 1999 12 2 5 0 0 0 0 0 0 0 4 8 31 2000 13 15 10 0 0 0 0 0 0 0 13 *** *** 2001 27 23 9 0 0 0 0 0 0 0 2 1 62 2002 16 8 4 0 0 0 0 0 0 0 2 24 54 2003 22 14 7 1 0 0 0 0 0 0 4 16 64 MEAN 20 14 5 0 0 0 0 0 0 0 2 11 52 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. NO. OF DAYS MINIMUM TEMPERATURE EQUAL OR MORE THAN 21 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 0 0 0 0 0 2 9 1 0 0 0 0 12 1965 0 0 0 0 1 0 9 2 0 0 0 0 12 1966 0 0 0 0 0 0 0 1 0 0 0 0 1 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 2 0 0 0 0 2 1970 0 0 0 0 0 6 3 12 0 0 0 0 21 1971 0 0 0 0 0 3 *** 0 0 0 0 0 *** 1972 0 0 0 0 0 0 0 3 0 0 0 0 3 1973 0 0 0 0 0 1 8 7 0 0 0 0 16 1974 0 0 0 0 0 1 4 0 0 0 0 0 5 1975 0 0 0 0 0 1 11 6 0 0 0 0 18 1976 0 0 0 0 0 1 9 6 0 0 0 0 16 1977 0 0 0 0 0 8 14 1 0 0 0 0 23 1978 0 0 0 0 0 3 10 0 0 0 0 0 13 1979 0 0 0 0 0 1 14 1 1 0 0 0 17 1980 0 0 0 0 0 1 5 0 0 0 0 0 6 1981 0 0 0 0 0 1 2 0 0 0 0 0 3 1982 0 0 0 0 0 0 *** 6 0 0 0 0 *** 1983 0 0 0 0 0 4 14 5 0 0 0 0 23 1984 0 0 0 0 *** 0 8 4 0 0 0 0 *** 1985 0 0 0 0 0 6 9 0 0 0 0 0 15 1986 0 0 0 0 0 3 7 4 0 0 0 0 14 1987 0 0 0 0 0 0 3 4 0 0 0 0 7 1988 0 0 0 0 0 1 11 0 0 0 0 0 12 1989 0 0 0 0 0 2 13 0 0 0 0 0 15 1990 0 0 0 0 0 1 6 3 0 0 0 0 10 1991 0 0 0 0 0 0 1 0 0 0 0 0 1 1992 0 0 0 0 0 2 *** *** *** *** 0 0 *** 1993 0 0 0 0 0 0 4 0 1 *** 0 0 *** 1994 0 0 0 0 0 2 4 11 0 0 0 0 17 1995 0 0 0 0 0 1 13 3 0 *** *** *** *** 1996 0 0 0 0 0 0 4 2 0 0 0 0 6 1997 0 0 0 0 0 1 12 5 0 0 0 0 18 1998 0 0 0 0 0 0 4 0 0 0 0 0 4 1999 0 0 0 0 0 1 2 0 0 0 0 0 3 2000 0 0 0 0 0 0 0 0 0 0 0 *** *** 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 0 0 0 0 0 1 2 0 0 0 0 3 2003 0 0 0 0 0 0 1 1 0 0 0 0 2 MEAN 0 0 0 0 0 1 6 2 0 0 0 0 9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR LESS THAN 0 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 23 2 0 0 0 0 0 0 0 0 1 8 34 1965 3 1 0 0 0 0 0 0 0 0 0 2 6 1966 0 0 0 0 0 0 0 0 0 0 0 0 0 1967 2 4 0 0 0 0 0 0 0 0 0 4 10 1968 3 5 0 0 0 0 0 0 0 0 0 0 8 1969 14 5 1 0 0 0 0 0 0 0 0 0 20 1970 2 0 0 0 0 0 0 0 0 0 0 5 7 1971 2 0 0 0 0 0 *** 0 0 0 0 0 *** 1972 12 10 0 0 0 0 0 0 0 0 0 8 30 1973 12 0 0 0 0 0 0 0 0 0 0 1 13 1974 7 9 1 0 0 0 0 0 0 0 0 0 17 1975 2 5 1 0 0 0 0 0 0 0 1 5 14 1976 1 9 4 0 0 0 0 0 0 0 0 0 14 1977 18 1 0 0 0 0 0 0 0 0 0 1 20 1978 4 0 0 0 0 0 0 0 0 0 0 0 4 1979 2 1 4 0 0 0 0 0 0 0 0 0 7 1980 5 3 0 0 0 0 0 0 0 0 0 0 8 1981 1 0 0 0 0 0 0 0 0 0 0 1 2 1982 4 2 0 0 0 0 *** 0 0 0 0 2 *** 1983 9 0 0 0 0 0 0 0 0 0 0 7 16 1984 1 5 0 0 *** 0 0 0 0 0 0 5 *** 1985 4 0 4 0 0 0 0 0 0 0 0 0 8 1986 1 1 1 0 0 0 0 0 0 0 0 2 5 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 2 1 0 0 0 0 0 0 0 0 0 1 4 1989 8 4 0 0 0 0 0 0 0 0 0 0 12 1990 4 0 0 0 0 0 0 *** 0 *** *** *** *** 1991 0 5 0 0 0 0 0 0 0 0 0 0 5 1992 5 2 2 0 0 0 *** *** *** *** 0 1 *** 1993 13 2 2 0 0 0 0 0 0 *** 1 2 *** 1994 0 4 0 0 0 0 0 0 0 0 0 6 10 1995 0 1 0 0 0 0 0 0 0 *** *** *** *** 1996 5 2 1 0 0 0 0 0 0 0 2 0 10 1997 1 3 0 0 0 0 0 0 0 0 0 2 6 1998 6 7 1 0 0 0 0 0 0 0 0 0 14 1999 1 0 2 0 0 0 0 0 0 0 0 0 3 2000 3 2 0 0 0 0 0 *** 0 0 1 *** *** 2001 8 0 0 0 0 0 0 0 0 0 0 0 8 2002 2 2 0 0 0 0 0 0 0 0 0 3 7 2003 2 3 1 0 0 0 0 0 0 0 0 2 8 MEAN 5 3 1 0 0 0 0 0 0 0 0 2 11 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR MORE THAN 30 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 0 0 0 0 1 18 26 25 5 0 0 0 75 1965 0 0 0 0 4 15 22 20 3 0 0 0 64 1966 0 0 0 0 2 23 21 23 4 0 0 0 73 1967 0 0 0 0 4 14 25 22 11 0 0 0 76 1968 0 0 0 0 0 17 18 24 17 0 0 0 76 1969 0 0 0 0 2 17 31 16 2 0 0 0 68 1970 0 0 0 0 10 20 18 26 11 2 0 0 87 1971 0 0 0 0 13 19 *** 24 4 0 0 0 *** 1972 0 0 0 0 0 6 12 25 13 0 0 0 56 1973 0 0 0 0 3 26 30 18 8 0 0 0 85 1974 0 0 0 0 9 22 21 15 7 0 0 0 74 1975 0 0 0 0 4 15 31 18 7 0 0 0 75 1976 0 0 0 0 1 16 29 27 12 1 0 0 86 1977 0 0 0 0 0 24 29 21 5 1 0 0 80 1978 0 0 0 0 1 19 20 22 15 0 0 0 77 1979 0 0 0 0 0 17 28 11 10 0 0 0 66 1980 0 0 0 0 7 19 31 26 14 2 0 0 99 1981 0 0 0 0 3 14 18 20 10 0 0 0 65 1982 0 0 0 0 4 22 *** 15 2 0 0 0 *** 1983 0 0 0 0 0 20 29 30 9 0 0 0 88 1984 0 0 0 0 *** 14 29 31 5 0 0 0 *** 1985 0 0 0 2 6 23 30 7 7 1 0 0 76 1986 0 0 0 0 1 9 26 14 5 0 0 0 55 1987 0 0 0 0 8 12 21 27 9 0 0 0 77 1988 0 0 0 0 2 21 29 20 13 0 0 0 85 1989 0 0 0 0 7 25 25 22 18 0 0 0 97 1990 0 0 0 0 6 23 8 *** 12 *** *** *** *** 1991 0 0 0 0 2 9 21 16 8 0 0 0 56 1992 0 0 0 0 0 9 *** *** *** *** 0 0 *** 1993 0 0 0 0 0 9 7 4 2 *** 0 0 *** 1994 0 0 0 0 0 6 21 16 0 0 0 0 43 1995 0 0 0 0 0 5 24 19 2 *** *** *** *** 1996 0 0 0 0 0 6 2 15 12 0 0 0 35 1997 0 0 0 0 0 7 16 17 4 0 0 0 44 1998 0 0 0 0 0 2 15 11 6 1 0 0 35 1999 0 0 0 0 1 12 12 15 5 0 0 0 45 2000 0 1 0 0 8 22 11 *** 0 0 0 *** *** 2001 0 0 0 0 5 18 17 27 12 2 0 0 81 2002 0 0 0 0 2 13 9 22 12 0 0 0 58 2003 0 0 0 0 0 4 19 2 0 0 0 0 25 MEAN 0 0 0 0 3 15 21 19 8 0 0 0 66 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR MORE THAN 40 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 0 0 0 0 0 0 0 0 0 0 0 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 *** 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 0 0 0 0 0 0 0 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 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 0 0 1982 0 0 0 0 0 0 *** 0 0 0 0 0 *** 1983 0 0 0 0 0 0 0 0 0 0 0 0 0 1984 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 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 *** *** *** *** 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 *** *** *** *** 0 0 *** 1993 0 0 0 0 0 0 0 0 0 *** 0 0 *** 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 *** *** *** *** 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 *** *** 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 1 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 23 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. NO. OF DAYS MAXIMUM TEMPERATURE EQUAL OR MORE THAN 45 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 0 0 0 0 0 0 0 0 0 0 0 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 *** 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 0 0 0 0 0 0 0 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 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 0 0 1982 0 0 0 0 0 0 *** 0 0 0 0 0 *** 1983 0 0 0 0 0 0 0 0 0 0 0 0 0 1984 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 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 *** *** *** *** 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 *** *** *** *** 0 0 *** 1993 0 0 0 0 0 0 0 0 0 *** 0 0 *** 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 *** *** *** *** 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 *** *** 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 24 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. NO. OF FREEZING DAYS , DATE OF START AND END FREEZING START END YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MO DAY MO DAY -------------- 1964 31 24 6 2 0 0 0 0 0 6 17 31 117 10 15 4 17 1965 27 25 12 1 0 0 0 0 0 0 2 19 86 11 11 4 7 1966 13 12 17 1 0 0 0 0 0 1 23 28 95 10 19 4 5 1967 30 26 23 8 0 0 0 0 0 2 13 29 131 10 24 4 15 1968 31 25 15 5 0 0 0 0 0 0 9 26 111 11 7 4 14 1969 29 26 7 3 0 0 0 0 0 0 20 16 101 11 10 4 20 1970 30 19 14 0 0 0 0 0 0 4 5 21 93 10 23 3 27 1971 27 21 11 0 0 0 *** 0 0 6 14 26 *** 10 12 3 26 1972 31 29 24 3 0 0 0 0 1 0 14 30 132 9 19 4 19 1973 30 15 13 1 0 0 0 0 2 1 21 31 114 9 27 4 1 1974 31 26 12 1 0 0 0 0 0 1 18 31 120 10 14 4 2 1975 30 23 17 4 0 0 0 0 0 9 16 26 125 10 21 4 6 1976 17 18 25 3 0 0 0 0 0 1 22 28 114 10 31 4 5 1977 31 26 3 0 0 0 0 0 0 2 3 13 78 10 24 3 17 1978 30 20 19 0 0 0 0 0 0 0 20 18 107 11 3 3 23 1979 23 21 13 3 0 0 0 0 0 0 14 26 100 11 9 4 30 1980 30 26 14 0 0 0 0 0 0 2 5 21 98 10 22 3 17 1981 22 16 7 3 0 0 0 0 0 0 11 24 83 11 10 4 5 1982 27 28 22 1 0 0 *** 0 0 3 16 31 *** 10 25 4 1 1983 29 24 25 2 0 0 0 0 0 1 5 21 107 10 22 4 13 1984 26 27 8 1 *** 0 0 0 0 4 8 31 *** 10 21 4 5 1985 28 26 20 0 0 0 0 0 0 0 9 22 105 11 1 3 26 1986 30 15 22 1 0 0 0 0 0 0 19 26 113 11 12 4 1 1987 26 19 9 6 0 0 0 0 0 13 8 24 105 10 12 4 8 1988 28 25 15 6 0 0 0 0 0 0 13 21 108 11 15 4 10 1989 31 27 12 4 3 0 0 0 0 0 7 18 102 11 9 5 4 1990 30 26 16 5 0 0 0 0 0 5 6 24 112 10 16 4 11 1991 31 28 18 3 0 0 0 0 0 2 15 23 120 10 14 4 16 1992 31 26 25 1 1 0 *** *** *** *** 8 21 *** 11 4 5 6 1993 29 22 21 1 0 0 0 0 0 *** 14 26 *** 11 6 4 1 1994 28 26 11 5 0 0 0 0 0 2 5 22 99 10 26 4 9 1995 29 19 16 0 0 0 0 0 0 *** *** *** *** 1 1 3 30 1996 26 22 14 3 0 0 0 0 0 2 20 18 105 10 3 4 7 1997 27 25 18 4 0 0 0 0 0 0 10 23 107 11 8 4 14 1998 29 25 13 0 0 0 0 0 0 3 2 13 85 10 10 3 22 1999 27 20 14 2 0 0 0 0 0 0 21 19 103 11 3 4 12 2000 24 27 20 0 0 0 0 0 0 0 23 *** *** 11 5 3 30 2001 31 28 26 0 1 0 0 0 0 0 11 20 117 11 15 5 2 2002 22 23 12 0 0 0 0 0 0 0 13 28 98 11 16 3 24 2003 31 27 19 5 1 0 0 0 0 0 14 29 126 11 6 5 3 MEAN 28 23 16 2 0 0 0 0 0 2 13 24 108 9 19 5 6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 -8.4 0.4 8.6 10.6 21.2 24.2 26.7 25.8 20.5 13.1 5.9 -2.2 12.2 1965 -0.5 1.4 6.5 11.6 19.9 23.3 25.9 24.3 20.2 16.9 9.7 4.4 13.6 1966 5.8 6.6 7.2 12.7 18.4 25.2 25.4 24.8 20.9 12.5 7.3 3.6 14.2 1967 0.8 0.9 6.3 9.8 17.4 23.4 25.7 24.9 21.4 14.0 8.6 2.4 13.0 1968 1.0 -0.1 6.4 11.6 16.7 23.4 24.8 24.8 22.0 16.1 8.3 3.1 13.2 1969 -3.3 -1.8 9.3 12.0 17.8 23.7 24.4 23.3 19.5 15.2 4.1 4.7 12.4 1970 -0.8 4.2 6.9 15.6 21.1 23.8 24.6 26.3 19.5 15.7 10.4 1.7 14.1 1971 -0.4 2.1 9.2 12.8 21.5 24.2 ****** 25.0 19.3 13.9 8.7 4.3 ****** 1972 -4.4 -4.9 3.9 13.6 15.0 22.7 24.1 25.5 21.0 16.2 9.6 -0.3 11.8 1973 -4.1 3.9 5.5 12.6 17.9 25.5 27.3 24.8 20.3 16.6 6.8 1.4 13.2 1974 -3.2 -3.3 7.5 12.0 19.1 24.2 25.4 22.9 20.1 11.5 7.9 -0.4 12.0 1975 -1.5 -0.1 6.7 13.2 18.8 24.7 27.8 24.2 20.7 13.4 5.0 1.4 12.9 1976 3.0 0.4 2.8 11.3 19.0 23.3 27.3 25.6 22.0 15.0 6.1 1.6 13.1 1977 -8.4 3.0 11.6 14.4 18.2 26.0 27.2 24.7 20.5 13.8 7.3 3.0 13.4 1978 -0.5 1.7 6.1 12.6 17.7 23.7 25.8 23.9 21.7 15.4 3.9 4.6 13.1 1979 1.6 2.3 4.3 14.5 16.5 22.7 27.1 23.4 20.2 17.4 10.2 2.5 13.6 1980 -2.2 -0.7 6.4 17.3 19.8 24.6 26.4 24.4 20.6 14.8 8.8 4.5 13.7 1981 1.4 3.6 8.4 13.2 17.9 22.1 24.9 24.2 20.4 13.1 9.3 4.4 13.6 1982 -1.2 -1.3 3.9 15.2 19.4 23.9 ****** 24.0 19.4 12.2 4.5 -1.3 ****** 1983 -1.4 2.0 3.5 12.5 18.4 24.9 28.4 26.5 21.1 13.9 10.2 0.6 13.4 1984 -0.1 -2.8 8.0 13.3 ****** 23.2 26.0 26.8 19.9 12.8 8.1 -2.1 ****** 1985 -0.4 4.1 4.1 15.9 19.5 25.6 27.0 22.5 21.2 13.6 9.1 2.9 13.8 1986 1.3 2.6 2.7 12.4 19.0 22.8 25.6 23.6 20.7 16.3 7.6 1.0 13.0 1987 2.5 4.3 7.6 13.1 19.6 22.5 24.8 25.4 20.8 9.9 10.4 5.0 13.8 1988 0.4 2.3 7.2 13.1 18.7 24.7 26.1 24.0 20.7 14.6 10.1 5.0 13.9 1989 -3.5 -3.1 6.9 14.3 17.6 24.5 26.5 24.4 21.1 15.8 8.3 4.6 13.1 1990 -0.7 1.2 6.3 12.1 19.9 25.1 25.2 25.7 22.6 14.0 9.3 1.1 13.5 1991 -0.6 -0.1 5.3 12.5 15.4 21.6 23.9 23.3 19.6 12.7 7.4 3.0 12.0 1992 -1.7 0.9 2.4 10.4 12.8 21.3 ****** ****** ****** ****** 10.3 3.5 ****** 1993 -2.8 2.0 3.7 12.8 16.1 21.5 23.4 22.5 21.0 ****** 6.5 3.0 ****** 1994 1.0 1.0 8.1 12.4 18.2 23.0 24.8 24.8 17.3 12.1 10.0 0.7 12.8 1995 2.5 3.2 6.5 12.3 17.3 21.5 26.5 25.4 19.5 ****** ****** ****** ****** 1996 -0.6 2.3 4.5 11.5 17.2 22.2 23.6 23.0 21.7 13.5 6.1 4.2 12.4 1997 1.3 1.3 4.4 12.1 17.1 22.4 26.1 25.1 20.9 15.9 6.8 2.2 13.0 1998 -0.3 0.5 6.5 14.8 17.3 22.5 25.0 24.0 21.5 16.1 11.6 7.8 13.9 1999 1.6 4.9 5.8 12.5 17.7 23.2 23.2 24.4 19.9 15.8 5.1 5.6 13.3 2000 1.7 1.7 6.3 17.6 22.1 23.3 23.9 24.2 21.6 13.7 3.4 ****** ****** 2001 -0.1 2.2 7.6 16.7 18.7 23.4 24.8 25.9 24.1 17.0 9.4 5.2 14.6 2002 1.2 3.0 8.1 11.9 17.4 23.2 24.3 26.0 22.6 18.1 8.8 0.8 13.8 2003 1.5 2.0 5.3 13.5 14.5 20.8 25.6 24.0 21.2 17.1 9.8 3.5 13.2 MEAN -0.6 1.4 6.2 13.1 18.1 23.4 25.5 24.6 20.7 14.6 8.0 2.7 13.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 -20.6 -7.0 -2.5 -1.7 2.6 -1.8 4.0 1.3 -1.6 -6.8 -5.7 -13.1 -4.4 1965 -6.4 -7.0 -5.0 -5.4 -1.8 0.1 0.3 -0.7 2.2 3.8 0.1 -3.9 -2.0 1966 -2.5 -1.9 -2.2 2.5 3.5 4.3 4.7 3.2 1.0 0.1 -4.6 -5.6 0.2 1967 -5.5 -3.2 -3.2 2.5 4.8 1.1 5.8 1.2 1.8 2.0 0.0 -3.8 0.3 1968 -3.8 -4.5 -0.6 2.2 2.8 5.1 3.2 3.3 1.1 0.8 0.8 -0.9 0.8 1969 -5.3 -4.4 2.0 2.2 4.7 3.9 2.3 2.8 1.2 1.9 -2.3 -2.3 0.6 1970 -4.4 -3.2 -1.8 0.8 2.8 4.4 5.8 5.3 3.2 -0.4 -2.4 -4.4 0.5 1971 -4.9 -3.4 -0.7 2.5 4.0 3.1 ****** 2.8 -1.3 -0.7 0.9 -3.2 ****** 1972 -6.2 -7.5 -0.5 2.0 4.8 8.5 3.3 5.6 2.9 1.6 -1.1 -4.4 0.7 1973 -6.7 -1.1 -0.1 2.3 6.4 5.8 7.2 7.0 3.9 0.5 -3.0 -5.9 1.4 1974 -5.5 -5.2 0.3 1.8 4.3 5.9 6.6 4.6 3.5 -2.5 -2.8 -4.8 0.5 1975 -5.0 -3.1 -1.3 1.6 5.0 4.9 4.8 4.8 4.1 0.6 -1.8 -2.1 1.0 1976 -1.3 -2.5 -0.8 4.0 4.9 6.9 7.1 5.4 4.7 1.3 -2.1 -2.5 2.1 1977 ****** -1.2 1.2 3.6 7.0 8.7 8.7 7.0 1.9 3.0 1.4 -1.6 ****** 1978 -4.6 -1.8 -1.0 0.5 6.8 7.5 6.7 3.6 3.2 1.9 -0.3 0.0 1.9 1979 -2.4 -1.3 0.2 2.6 1.7 5.1 3.8 3.6 4.2 2.8 -3.3 -1.7 1.3 1980 -5.3 -3.8 0.6 4.7 5.3 7.1 5.8 5.7 1.9 1.4 0.9 -2.6 1.8 1981 -3.3 -1.4 1.1 3.3 6.4 6.7 8.2 5.8 2.6 2.9 -1.1 -2.8 2.4 1982 -4.3 -4.7 -1.2 2.3 6.4 7.8 ****** 5.9 1.9 4.5 -0.1 -4.7 ****** 1983 -4.6 -3.7 -2.9 2.8 5.6 7.5 7.2 7.2 3.9 -1.7 -0.2 -2.7 1.5 1984 -3.8 -5.9 1.0 2.6 ****** 5.3 5.7 6.2 3.4 -1.3 0.2 -4.7 ****** 1985 -3.5 -3.5 -2.2 1.4 1.8 4.7 7.3 4.5 2.4 1.8 0.6 -1.2 1.2 1986 -3.4 -2.0 -2.3 3.7 5.8 8.5 11.2 4.2 2.6 3.0 -0.7 -2.0 2.4 1987 -3.6 -1.8 1.0 3.3 6.3 5.5 8.3 11.7 11.2 3.0 -0.5 -3.3 3.4 1988 -3.2 -2.6 -0.5 5.0 7.2 8.0 10.1 9.2 4.8 3.4 -0.8 -2.1 3.2 1989 -5.5 -5.8 0.5 2.2 4.9 7.1 8.5 6.9 6.0 4.7 0.4 -1.5 2.4 1990 -3.3 -2.2 -2.7 1.8 5.9 6.1 9.8 6.2 3.1 -0.2 -2.6 -4.7 1.4 1991 -2.9 -3.3 1.7 5.0 5.3 7.7 7.7 3.5 4.7 2.0 -1.5 -2.5 2.3 1992 -4.0 -3.4 -1.7 2.7 6.0 9.8 ****** ****** ****** ****** 2.4 -0.3 ****** 1993 -5.2 -1.6 -0.5 3.1 7.5 8.7 6.6 6.2 6.7 ****** -0.3 -1.9 ****** 1994 -3.3 -3.5 0.8 2.5 5.6 6.3 6.7 5.5 0.7 2.4 2.8 -2.1 2.0 1995 -2.2 -2.5 -2.4 3.0 3.0 4.5 8.3 6.2 3.7 ****** ****** ****** ****** 1996 -2.8 -1.3 0.6 2.8 4.0 6.2 7.4 6.4 6.3 3.0 -1.2 -2.4 2.4 1997 -3.3 -3.7 -2.6 0.1 4.3 8.7 6.1 4.6 4.0 2.9 0.2 -1.4 1.7 1998 -3.1 -3.3 -0.0 3.6 6.0 6.7 9.5 9.4 7.8 4.5 1.3 -0.2 3.5 1999 -1.9 0.1 0.0 1.6 5.1 6.4 9.1 6.7 5.2 2.6 -0.5 -2.8 2.6 2000 -2.4 -2.7 -1.6 3.1 8.7 4.5 3.1 3.8 3.0 2.7 -2.6 ****** ****** 2001 -6.2 -3.5 2.6 10.7 10.8 15.1 10.7 11.8 12.6 4.3 0.1 0.3 5.8 2002 -3.2 -2.4 0.1 6.8 9.1 6.6 3.9 3.1 2.6 3.0 -0.1 -4.4 2.1 2003 -4.3 -3.7 -0.6 4.1 6.9 8.7 7.8 6.3 3.9 4.0 -0.4 -4.4 2.3 MEAN -4.4 -3.3 -0.7 2.7 5.2 6.2 6.6 5.3 3.6 1.7 -0.8 -3.0 1.6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 1.41 2.87 3.93 4.12 5.96 4.19 6.14 5.13 4.24 3.07 3.06 2.08 3.85 1965 2.98 2.84 3.34 3.28 4.10 4.72 4.83 4.58 5.46 6.09 4.67 3.50 4.20 1966 3.88 4.02 3.96 5.53 6.02 6.29 6.55 6.01 5.09 4.75 3.36 3.13 4.88 1967 3.14 3.73 3.62 5.57 6.49 5.11 7.05 5.09 5.39 5.38 4.70 3.62 4.91 1968 3.54 3.49 4.47 5.49 5.80 6.63 5.82 5.91 5.03 4.87 4.91 4.35 5.03 1969 3.35 3.49 5.46 5.52 6.57 6.19 5.92 5.74 5.14 5.30 4.11 3.88 5.06 1970 3.40 3.65 4.11 4.92 5.69 6.42 7.01 6.76 5.81 4.63 3.87 3.44 4.98 1971 3.28 3.62 4.40 5.49 6.09 6.16 ****** 5.62 4.26 4.42 4.97 3.69 ****** 1972 3.06 2.82 4.47 5.32 6.55 8.51 5.89 6.87 5.70 5.24 4.28 3.41 5.18 1973 2.95 4.29 4.63 5.44 7.20 6.90 7.66 7.51 6.12 4.91 3.72 3.01 5.36 1974 3.18 3.33 4.85 5.29 6.33 6.92 7.29 6.34 6.03 3.92 3.78 3.33 5.05 1975 3.27 3.75 4.26 5.30 6.66 6.55 6.45 6.44 6.19 4.81 4.10 4.00 5.15 1976 4.23 3.99 4.36 6.32 6.54 7.43 7.59 6.74 6.62 5.11 4.13 3.84 5.58 1977 ****** 4.19 5.06 5.92 7.56 8.49 8.45 7.50 5.28 5.78 5.13 4.20 ****** 1978 3.36 4.14 4.31 4.77 7.44 7.79 7.42 5.99 5.79 5.30 4.56 4.66 5.46 1979 3.96 4.25 4.83 5.60 5.18 6.66 6.05 5.93 6.19 5.66 3.79 4.10 5.18 1980 3.25 3.65 4.90 6.38 6.69 7.62 6.91 6.99 5.38 5.08 4.90 3.84 5.46 1981 3.65 4.20 5.01 6.00 7.30 7.49 8.25 6.94 5.62 5.77 4.30 3.77 5.69 1982 3.42 3.34 4.27 5.48 7.33 7.92 ****** 7.15 5.29 6.59 4.64 3.33 ****** 1983 3.41 3.56 3.74 5.70 6.99 7.83 7.66 7.66 6.17 4.13 4.56 3.91 5.44 1984 3.50 3.10 5.07 5.58 ****** 6.73 6.88 7.11 5.95 4.23 4.67 3.36 ****** 1985 3.63 3.59 4.06 5.20 5.25 6.44 7.80 6.38 5.51 5.31 4.87 4.24 5.19 1986 3.67 3.99 3.98 6.12 6.97 8.27 10.14 6.29 5.63 5.77 4.42 4.12 5.78 1987 3.57 4.07 5.06 5.90 7.24 6.84 8.24 10.47 10.24 6.05 4.52 3.65 6.32 1988 3.69 3.89 4.48 6.81 7.73 8.12 9.40 8.75 6.73 6.03 4.51 4.11 6.19 1989 3.16 3.10 4.80 5.40 6.68 7.56 8.56 7.47 7.08 6.53 4.74 4.19 5.77 1990 3.65 3.93 3.86 5.29 7.01 7.08 9.26 7.19 5.93 4.77 3.94 3.41 5.44 1991 3.84 3.76 5.30 6.65 6.76 7.94 7.92 6.02 6.46 5.34 4.16 3.88 5.67 1992 3.57 3.64 4.14 5.62 7.13 9.11 ****** ****** ****** ****** 5.87 4.52 ****** 1993 3.23 4.16 4.56 5.83 7.84 8.44 7.31 7.26 7.44 ****** 4.62 4.01 ****** 1994 3.67 3.58 4.96 5.66 6.83 7.14 7.36 6.93 4.94 5.58 5.75 4.12 5.54 1995 3.98 3.91 4.03 5.85 6.11 6.39 8.39 7.37 6.11 ****** ****** ****** ****** 1996 3.89 4.26 4.85 5.77 6.35 7.34 7.78 7.31 7.28 5.98 4.29 3.89 5.75 1997 3.62 3.53 3.85 4.74 6.43 8.57 7.38 6.68 6.19 5.73 4.78 4.17 5.47 1998 3.67 3.70 4.67 6.11 7.21 7.33 8.96 8.88 8.08 6.59 5.18 4.58 6.25 1999 4.07 4.64 4.62 5.18 6.65 7.35 8.75 7.39 6.71 5.69 4.48 3.86 5.78 2000 3.96 3.79 4.17 6.00 8.68 6.63 5.92 6.33 5.77 5.72 3.96 ****** ****** 2001 3.08 3.70 5.98 10.82 10.69 14.00 10.18 11.16 11.68 6.90 4.76 4.76 8.14 2002 3.79 3.93 4.75 7.54 8.76 7.46 6.11 5.80 5.55 5.76 4.77 3.45 5.64 2003 3.40 3.58 4.52 6.42 7.78 8.58 8.04 7.20 6.16 6.16 4.65 3.48 5.83 MEAN 3.47 3.73 4.49 5.75 6.84 7.33 7.50 6.89 6.16 5.38 4.47 3.81 5.48 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 1.89 3.86 5.31 5.57 8.06 5.70 8.34 6.98 5.75 4.17 4.13 2.79 5.21 1965 4.00 3.83 4.50 4.44 5.57 6.42 6.57 6.23 7.40 8.23 6.30 4.71 5.68 1966 5.22 5.42 5.34 7.47 8.14 8.54 8.88 8.15 6.90 6.42 4.54 4.21 6.60 1967 4.22 5.01 4.88 7.50 8.76 6.94 9.57 6.93 7.31 7.27 6.34 4.87 6.63 1968 4.76 4.69 6.02 7.41 7.84 8.99 7.91 8.03 6.83 6.59 6.61 5.85 6.79 1969 4.50 4.69 7.35 7.45 8.88 8.39 8.02 7.79 6.97 7.16 5.54 5.22 6.83 1970 4.56 4.92 5.54 6.66 7.71 8.71 9.50 9.17 7.87 6.28 5.23 4.63 6.73 1971 4.41 4.86 5.93 7.41 8.26 8.35 ****** 7.64 5.78 5.98 6.70 4.97 ****** 1972 4.10 3.78 6.01 7.19 8.83 11.49 7.99 9.32 7.73 7.08 5.78 4.58 6.99 1973 3.96 5.77 6.23 7.34 9.72 9.36 10.39 10.18 8.29 6.66 5.02 4.04 7.25 1974 4.26 4.47 6.53 7.13 8.57 9.39 9.89 8.60 8.17 5.30 5.11 4.47 6.82 1975 4.40 5.04 5.75 7.15 9.01 8.89 8.77 8.74 8.38 6.50 5.52 5.37 6.96 1976 5.69 5.35 5.86 8.51 8.85 10.06 10.30 9.16 8.96 6.92 5.56 5.16 7.53 1977 ****** 5.65 6.83 7.99 10.20 11.49 11.45 10.16 7.17 7.80 6.90 5.65 ****** 1978 4.52 5.56 5.81 6.45 10.04 10.55 10.06 8.13 7.86 7.17 6.13 6.27 7.38 1979 5.33 5.71 6.49 7.56 7.01 9.03 8.22 8.04 8.39 7.66 5.12 5.52 7.01 1980 4.36 4.90 6.59 8.62 9.04 10.32 9.38 9.47 7.29 6.88 6.60 5.17 7.38 1981 4.91 5.65 6.75 8.09 9.85 10.13 11.17 9.40 7.62 7.78 5.81 5.08 7.69 1982 4.59 4.49 5.74 7.41 9.90 10.72 ****** 9.69 7.17 8.88 6.23 4.47 ****** 1983 4.58 4.79 5.04 7.69 9.43 10.60 10.40 10.39 8.35 5.60 6.15 5.26 7.36 1984 4.70 4.15 6.83 7.53 ****** 9.12 9.34 9.64 8.05 5.73 6.29 4.51 ****** 1985 4.88 4.83 5.46 7.02 7.11 8.74 10.57 8.64 7.47 7.17 6.56 5.71 7.01 1986 4.94 5.36 5.35 8.24 9.42 11.18 13.68 8.53 7.63 7.80 5.95 5.53 7.80 1987 4.81 5.48 6.81 7.96 9.78 9.27 11.15 14.12 13.77 8.15 6.10 4.92 8.53 1988 4.96 5.23 6.04 9.17 10.42 10.99 12.70 11.83 9.11 8.14 6.09 5.53 8.35 1989 4.23 4.16 6.46 7.30 9.02 10.24 11.58 10.12 9.58 8.81 6.39 5.63 7.79 1990 4.90 5.28 5.20 7.13 9.48 9.60 12.51 9.75 8.04 6.45 5.32 4.58 7.35 1991 5.15 5.05 7.12 8.96 9.12 10.72 10.71 8.16 8.74 7.21 5.60 5.22 7.65 1992 4.79 4.89 5.57 7.57 9.60 12.28 ****** ****** ****** ****** 7.90 6.08 ****** 1993 4.34 5.59 6.13 7.86 10.56 11.40 9.90 9.82 10.05 ****** 6.22 5.40 ****** 1994 4.94 4.82 6.67 7.64 9.23 9.67 9.97 9.39 6.69 7.53 7.74 5.54 7.49 1995 5.35 5.26 5.43 7.89 8.25 8.66 11.35 9.98 8.27 ****** ****** ****** ****** 1996 5.22 5.72 6.52 7.77 8.57 9.92 10.52 9.89 9.84 8.07 5.78 5.23 7.76 1997 4.87 4.75 5.18 6.40 8.68 11.57 10.00 9.05 8.39 7.75 6.43 5.60 7.39 1998 4.93 4.98 6.28 8.24 9.73 9.92 12.11 11.99 10.92 8.89 6.99 6.17 8.43 1999 5.47 6.24 6.21 7.00 8.99 9.95 11.82 10.02 9.08 7.69 6.02 5.20 7.81 2000 5.32 5.10 5.62 8.12 11.72 8.97 8.03 8.58 7.82 7.72 5.32 ****** ****** 2001 4.15 4.98 8.04 14.48 14.33 18.71 13.71 15.02 15.69 9.30 6.42 6.40 10.94 2002 5.09 5.29 6.40 10.14 11.79 10.10 8.29 7.88 7.53 7.80 6.43 4.64 7.62 2003 4.57 4.81 6.09 8.66 10.47 11.57 10.88 9.76 8.35 8.33 6.27 4.69 7.87 MEAN 4.66 5.01 6.05 7.75 9.23 9.92 10.15 9.34 8.34 7.27 6.03 5.13 7.41 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 1.66 2.67 6.50 7.89 18.03 25.06 27.49 27.33 19.49 12.00 5.96 2.72 13.07 1965 2.12 3.27 5.89 9.93 18.95 22.93 27.66 25.28 17.21 11.80 6.33 4.21 12.96 1966 4.41 4.73 5.58 8.00 13.80 24.48 24.23 24.17 18.89 8.76 6.38 4.17 12.30 1967 2.80 1.83 5.30 5.59 12.24 22.59 24.64 25.72 19.37 9.42 5.46 2.98 11.49 1968 2.18 1.96 4.10 7.18 11.84 20.91 24.37 24.64 21.02 12.51 4.70 1.98 11.45 1969 0.70 1.09 5.12 7.69 12.48 22.09 25.56 21.56 17.11 11.21 3.21 3.63 10.96 1970 1.46 3.71 5.20 12.04 18.69 22.46 22.48 26.14 16.59 13.07 8.19 3.14 12.76 1971 1.98 2.60 6.74 8.11 18.78 22.89 ****** 25.15 17.82 10.90 4.83 3.86 ****** 1972 0.61 0.88 2.41 9.43 9.27 17.39 22.89 24.26 18.77 12.50 7.07 2.01 10.62 1973 0.91 2.80 3.31 8.16 11.72 24.53 27.05 22.13 17.08 13.52 5.82 3.23 11.69 1974 0.74 0.73 5.07 7.75 14.97 22.30 23.25 20.56 16.70 9.13 6.25 1.82 10.77 1975 1.35 1.40 4.96 8.94 13.65 23.22 29.70 22.97 17.27 10.40 3.83 1.73 11.62 1976 2.13 1.42 1.98 5.86 14.09 19.63 27.19 24.76 19.22 11.15 4.66 1.97 11.17 1977 ****** 3.84 7.67 9.24 11.46 23.68 25.50 22.16 18.40 9.67 3.71 2.28 ****** 1978 1.72 2.04 4.33 9.05 11.38 20.07 24.18 22.96 19.93 11.52 2.27 2.68 11.01 1979 1.96 1.83 2.65 10.55 12.77 19.97 28.79 21.46 16.78 13.38 8.36 2.10 11.72 1980 1.35 1.27 3.43 11.74 15.11 21.86 25.91 22.46 18.91 11.47 5.29 3.69 11.87 1981 2.08 2.62 5.04 8.34 12.15 17.70 21.32 21.69 18.07 8.04 6.67 3.68 10.62 1982 1.28 1.30 2.80 11.03 13.74 19.98 ****** 21.83 16.51 6.13 2.53 1.38 ****** 1983 1.35 2.61 3.18 7.53 12.71 21.98 29.42 25.54 18.23 11.51 6.97 1.75 11.90 1984 1.61 1.26 4.30 8.79 ****** 20.13 24.95 26.53 16.41 10.10 5.00 1.02 ****** 1985 1.47 3.75 3.73 12.38 16.83 25.44 25.88 19.50 19.14 9.56 5.62 2.20 12.13 1986 2.18 2.50 2.53 6.69 13.52 17.44 19.84 21.41 17.89 11.98 5.44 1.47 10.24 1987 2.99 3.42 4.09 8.57 14.40 19.12 21.35 19.36 12.16 5.58 7.44 4.37 10.24 1988 1.59 2.46 4.62 7.23 12.46 21.55 21.85 19.06 16.75 9.46 7.46 3.60 10.68 1989 0.76 1.05 3.84 9.98 12.68 21.53 23.94 21.64 17.53 10.75 4.99 3.14 10.99 1990 1.11 1.67 5.05 7.99 15.01 23.56 20.29 24.14 20.64 10.64 7.40 2.89 11.70 1991 0.97 1.50 2.20 6.55 9.38 16.06 19.99 21.65 15.97 8.17 5.41 2.79 9.22 1992 0.95 2.09 2.03 5.67 6.05 14.07 ****** ****** ****** ****** 5.35 1.99 ****** 1993 0.93 1.77 2.24 7.71 8.54 15.35 19.28 17.99 15.87 ****** 4.20 2.52 ****** 1994 1.92 2.12 4.66 8.05 12.59 19.09 22.09 22.57 13.77 7.19 5.05 1.41 10.04 1995 2.31 2.83 4.75 7.09 12.30 17.98 23.93 23.49 15.64 ****** ****** ****** ****** 1996 1.01 1.83 2.27 6.71 11.87 17.65 19.08 19.41 17.69 8.34 4.35 3.41 9.47 1997 2.20 2.48 3.72 8.51 11.75 16.17 24.33 23.63 17.49 11.23 3.94 1.75 10.60 1998 1.21 1.69 4.52 9.68 11.19 17.81 20.45 18.52 15.59 10.59 7.30 5.06 10.30 1999 1.70 2.78 3.58 8.25 12.43 19.60 17.58 21.25 15.56 11.36 3.20 4.30 10.13 2000 2.34 1.88 4.57 12.95 15.75 20.60 22.23 22.63 18.78 8.44 2.87 ****** ****** 2001 2.36 2.77 3.17 6.27 8.86 11.80 18.77 20.03 15.39 11.72 6.02 2.76 9.16 2002 2.16 2.83 5.32 4.39 9.18 19.44 22.72 26.85 21.48 14.48 5.47 2.12 11.37 2003 2.53 2.60 3.27 8.19 6.82 13.94 22.90 20.50 17.79 12.00 6.70 3.74 10.08 MEAN 1.72 2.25 4.14 8.39 12.81 20.10 23.60 22.64 17.56 10.53 5.43 2.78 11.00 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 46 61 50 47 32 20 25 22 25 29 47 49 38 1965 66 58 49 35 27 24 21 22 33 45 54 58 41 1966 59 57 57 53 41 28 28 27 29 47 47 57 44 1967 67 76 55 64 47 24 30 23 31 47 58 66 49 1968 73 75 63 56 43 33 27 27 27 38 62 77 50 1969 87 84 63 55 46 30 30 28 34 45 66 63 53 1970 79 61 60 41 32 31 32 28 37 37 43 69 46 1971 75 70 54 53 34 29 *** 25 27 40 61 62 *** 1972 88 83 75 49 55 44 28 29 33 41 51 76 54 1973 84 72 71 53 50 30 30 34 36 36 55 64 51 1974 86 87 66 54 42 33 32 32 36 40 50 73 53 1975 79 82 61 49 43 30 24 31 36 45 65 80 52 1976 75 82 79 64 43 37 30 28 35 43 60 77 54 1977 *** 65 52 51 51 35 33 34 32 54 68 74 *** 1978 76 77 64 47 52 37 32 29 32 43 76 74 53 1979 77 79 77 50 39 35 24 29 38 40 41 76 50 1980 79 81 68 47 41 35 28 32 33 44 60 63 51 1981 73 72 62 55 50 40 36 32 34 52 51 62 52 1982 78 79 73 45 46 38 *** 33 33 63 74 80 *** 1983 81 68 66 56 46 35 28 31 35 37 52 80 51 1984 78 81 64 52 *** 34 29 29 35 40 60 83 *** 1985 80 62 67 44 34 28 31 33 31 48 59 77 50 1986 74 75 74 59 45 42 43 31 33 44 59 82 55 1987 67 68 66 56 46 35 37 44 56 65 53 59 54 1988 79 73 61 61 51 37 38 40 38 50 50 64 54 1989 87 83 66 47 46 35 34 34 40 50 60 67 54 1990 84 80 58 54 44 32 40 31 31 42 48 69 51 1991 86 82 79 64 54 43 38 30 41 51 57 70 58 1992 85 76 78 62 66 52 *** *** *** *** 60 78 *** 1993 86 79 77 56 59 47 35 37 42 *** 65 72 *** 1994 75 75 64 54 46 36 33 31 35 55 64 84 54 1995 75 70 58 59 44 36 33 32 39 *** *** *** *** 1996 87 80 78 60 45 38 37 36 40 53 62 67 57 1997 75 73 64 48 46 45 30 29 34 45 66 79 53 1998 82 79 64 50 50 37 40 42 43 48 51 59 54 1999 80 74 70 51 47 36 43 33 41 44 69 57 54 2000 76 77 61 41 45 33 29 31 32 51 67 *** *** 2001 66 70 72 68 62 61 41 42 49 45 56 73 59 2002 74 70 61 73 61 37 28 25 29 39 57 69 52 2003 66 68 68 56 62 49 35 33 35 43 51 59 52 MEAN 77 74 65 53 46 36 32 31 35 45 58 70 52 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 62 75 63 60 38 29 33 30 37 41 60 65 49 1965 78 74 67 51 38 35 28 32 46 60 69 73 54 1966 74 71 74 65 53 39 39 41 41 62 66 77 59 1967 80 87 72 76 60 31 39 32 47 60 74 79 61 1968 84 85 75 71 56 44 37 40 41 51 76 86 62 1969 92 92 73 69 61 41 50 39 49 59 79 78 65 1970 90 78 77 57 44 41 43 36 49 50 57 81 59 1971 87 87 66 69 48 38 *** 35 38 55 75 77 *** 1972 94 90 86 65 68 60 39 38 46 56 68 86 66 1973 93 88 85 67 63 41 38 47 50 47 75 81 65 1974 94 94 78 66 58 49 43 44 49 53 65 84 65 1975 89 90 80 66 58 39 32 42 48 62 82 90 65 1976 87 88 90 79 58 51 40 36 46 55 78 92 67 1977 *** 88 69 67 65 47 42 45 46 67 81 83 *** 1978 89 89 78 67 68 50 41 39 47 59 86 85 67 1979 87 89 87 64 54 48 34 37 55 52 52 85 62 1980 87 89 80 58 56 45 39 42 49 57 76 75 63 1981 85 83 79 72 65 56 47 43 47 64 62 74 65 1982 84 86 85 61 60 49 *** 43 45 76 84 90 *** 1983 88 81 79 71 59 48 38 45 49 49 67 89 64 1984 91 92 79 68 *** 46 37 40 47 52 71 92 *** 1985 89 80 81 60 49 38 41 45 42 63 71 86 62 1986 85 87 88 74 62 51 53 43 43 60 75 90 68 1987 81 79 79 72 62 48 48 54 69 79 72 75 68 1988 91 86 78 75 69 52 48 51 49 63 65 78 67 1989 94 93 80 64 61 46 43 46 52 62 77 80 67 1990 92 91 75 72 62 44 49 42 44 58 64 83 65 1991 94 93 89 80 70 57 51 43 56 67 72 83 71 1992 94 86 90 77 79 67 *** *** *** *** 69 90 *** 1993 94 91 88 73 74 62 46 49 56 *** 77 85 *** 1994 89 89 83 74 61 45 43 42 48 70 78 91 68 1995 92 85 75 77 61 48 43 45 55 *** *** *** *** 1996 96 92 91 80 58 50 46 46 53 68 76 87 70 1997 93 89 81 64 61 59 41 39 44 58 82 92 67 1998 94 90 77 64 64 46 52 53 53 57 64 74 66 1999 90 89 82 67 64 50 53 41 54 59 82 71 67 2000 87 92 78 54 57 45 42 49 43 63 77 *** *** 2001 81 89 81 75 72 69 47 47 57 54 72 86 69 2002 85 82 78 84 75 51 37 35 43 51 74 78 64 2003 75 80 80 67 72 58 48 41 45 52 68 76 64 MEAN 87 86 79 69 61 48 42 42 48 59 72 82 65 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 29 48 39 36 26 13 19 16 17 19 35 31 27 1965 53 44 36 23 18 16 15 14 24 33 42 45 30 1966 44 45 41 42 30 20 21 18 20 35 32 40 32 1967 53 66 40 53 36 19 22 17 19 37 44 51 38 1968 60 64 53 45 33 25 19 18 18 26 47 67 40 1969 80 74 55 45 34 21 14 20 23 34 52 49 42 1970 66 46 46 29 23 23 23 21 28 27 31 57 35 1971 62 54 44 40 24 21 *** 18 19 27 51 48 *** 1972 81 76 65 38 44 33 20 22 23 29 37 67 45 1973 74 58 58 42 40 23 23 26 27 27 39 46 40 1974 77 79 56 43 27 22 24 24 28 30 35 63 42 1975 67 73 46 36 31 23 19 24 28 33 51 69 42 1976 63 75 70 50 31 27 23 22 27 34 44 61 44 1977 *** 48 39 40 40 27 26 26 22 42 55 63 *** 1978 60 62 50 34 40 28 24 21 21 30 66 63 42 1979 66 68 67 39 29 24 18 21 26 28 30 65 40 1980 68 71 57 38 30 27 21 24 23 33 46 51 41 1981 60 62 48 40 38 28 28 24 24 43 39 48 40 1982 72 70 59 32 35 28 *** 24 25 49 63 68 *** 1983 71 56 52 43 35 26 21 23 26 25 38 71 41 1984 61 69 50 40 *** 25 21 21 27 30 49 73 *** 1985 68 46 54 32 23 20 24 24 23 36 49 66 39 1986 60 63 61 47 32 34 34 21 24 30 44 71 43 1987 52 56 54 44 34 26 28 36 45 52 38 43 42 1988 64 60 47 49 34 26 30 33 28 39 35 49 41 1989 79 71 52 35 35 25 26 26 30 39 47 53 43 1990 76 69 43 38 30 22 33 22 20 26 32 54 39 1991 77 69 68 50 39 31 28 20 28 36 42 55 45 1992 76 63 65 48 51 37 *** *** *** *** 52 68 *** 1993 77 68 67 41 45 34 27 27 29 *** 52 60 *** 1994 62 63 48 41 34 26 25 22 25 41 51 75 43 1995 55 56 44 43 26 26 25 20 25 *** *** *** *** 1996 77 66 66 42 32 28 28 28 28 38 48 46 44 1997 56 58 49 34 32 33 21 20 26 33 50 67 40 1998 69 64 54 38 35 29 29 31 33 40 40 46 42 1999 69 60 58 36 34 25 32 26 30 32 58 42 42 2000 64 61 46 28 34 23 18 18 22 39 55 *** *** 2001 52 49 62 60 53 53 36 36 40 35 40 58 48 2002 62 59 47 60 46 26 21 18 19 26 43 59 41 2003 57 55 57 46 53 40 24 27 26 33 39 44 42 MEAN 65 62 53 41 35 27 24 23 26 34 45 57 41 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. NO. OF DAYS PRECIPITATION EQUAL OR MORE THAN 5 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1964 3 7 6 6 0 0 0 0 0 0 2 2 26 1965 11 2 3 2 2 0 0 0 1 2 3 1 27 1966 2 4 4 4 1 0 0 0 0 2 0 1 18 1967 2 4 4 7 3 0 0 0 0 4 1 1 26 1968 4 4 8 2 2 0 0 0 0 1 5 7 33 1969 6 2 5 8 1 0 0 0 1 2 4 3 32 1970 5 1 4 2 1 0 1 0 0 0 0 1 15 1971 3 6 2 4 0 0 *** 0 0 1 3 1 *** 1972 4 2 7 4 6 3 0 0 1 1 1 2 31 1973 4 3 5 4 2 0 0 0 0 0 1 1 20 1974 5 3 5 3 3 1 0 0 0 0 0 5 25 1975 6 5 3 2 2 1 0 0 0 0 3 3 25 1976 3 5 5 5 1 3 0 0 0 1 1 3 27 1977 4 3 2 2 4 1 0 0 0 5 4 6 31 1978 4 2 1 5 3 1 0 0 0 0 4 4 24 1979 5 3 6 2 1 1 0 0 0 1 1 4 24 1980 5 4 4 1 1 0 0 0 1 1 2 1 20 1981 3 4 4 5 3 0 0 0 0 2 2 3 26 1982 4 6 8 2 2 0 *** 0 0 2 3 3 *** 1983 4 2 3 5 1 0 0 0 0 0 2 3 20 1984 2 2 6 5 *** 0 0 0 0 0 2 2 *** 1985 6 2 1 2 1 0 0 0 0 1 3 4 20 1986 1 3 4 4 1 0 0 0 0 0 1 7 21 1987 1 2 8 3 4 0 1 0 0 3 1 3 26 1988 5 5 3 9 2 0 1 0 1 0 1 2 29 1989 6 4 5 1 3 0 0 1 0 0 3 7 30 1990 5 3 0 2 1 0 0 0 0 0 1 3 15 1991 5 5 9 2 3 0 0 0 0 1 0 5 30 1992 8 3 6 9 5 3 *** *** *** *** 1 4 *** 1993 7 7 7 6 5 0 0 0 0 *** 4 1 *** 1994 7 2 6 2 1 0 0 0 0 2 3 2 25 1995 1 5 4 6 1 0 0 0 1 *** *** *** *** 1996 3 6 10 6 2 0 0 0 0 2 1 1 31 1997 3 1 8 6 3 5 0 0 0 2 1 5 34 1998 5 5 4 3 3 0 0 0 0 0 0 3 23 1999 2 4 3 1 1 0 0 0 0 0 3 2 16 2000 3 3 2 0 0 1 0 0 1 1 2 *** *** 2001 0 3 5 1 2 0 0 0 0 1 2 8 22 2002 4 4 4 5 2 0 1 0 0 1 2 2 25 2003 2 6 6 5 4 1 0 0 0 0 3 3 30 MEAN 4 4 5 4 2 1 0 0 0 1 2 3 26 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. HIGHEST AND LOWEST LIMITS FOR 40 YEARS DURING 1964-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 11.0 12.0 19.4 24.0 25.0 30.0 30.2 29.2 24.6 20.2 17.0 13.6 1 YEAR - DAY 1987-27 1992-25 1998-30 1980-21 1964- 9 1977-23 1983-23 1986- 2 1974- 9 1964- 1 1986- 5 1980- 8 LOW. DRY 03 -19.2 -19.0 -11.4 -10.0 -2.0 8.0 11.4 7.4 -1.0 -3.0 -9.0 -19.0 2 YEAR - DAY 1972-25 1974- 4 1997- 9 1981- 3 1992- 4 1970-12 1999-14 1991-23 1973-27 1982-25 1969-19 1990-29 HIG. WET 03 7.0 8.6 12.0 14.4 22.0 19.8 21.0 19.0 18.0 13.6 10.0 8.6 3 YEAR - DAY 1966-31 1987- 5 1998-30 1980-14 2000-11 2001-29 1990-25 1993-30 1998- 4 2001- 2 1992-12 1989- 5 LOW. WET 03 -19.6 -19.0 -11.4 -10.6 -2.0 4.8 5.5 3.0 -2.4 -5.0 -11.0 -19.1 4 YEAR - DAY 1964-30 1974- 4 1997- 9 1981- 3 1992- 4 1969- 9 1969-31 1991-23 1973-27 1964-15 1969-19 1990-29 HIG. DRY 09 16.0 16.4 27.0 30.0 34.0 38.2 37.6 36.6 34.0 31.2 23.2 22.4 5 YEAR - DAY 2000- 1 1987-27 1977-20 1985-23 1970-31 2001- 8 1987-25 1982- 4 1975-10 2001- 2 1986- 4 1998-10 LOW. DRY 09 -14.0 -15.0 -5.2 -0.8 4.2 13.4 16.0 3.5 7.4 2.6 -3.0 -10.4 6 YEAR - DAY 1964- 8 1968- 5 1969-24 1981- 2 1992- 5 2000-13 1999-28 1970- 4 1999-27 1980-21 1993-30 1972-26 HIG. WET 09 11.0 9.4 19.4 26.4 28.4 32.2 29.0 27.4 32.0 23.8 19.4 14.0 7 YEAR - DAY 1995-29 1978-22 2001-22 2001- 9 2001-17 2001- 8 1969-17 2001-30 1987- 5 2001- 2 1998-11 1998-10 LOW. WET 09 -16.0 -15.0 -6.0 -2.0 2.4 7.2 9.0 2.0 6.0 1.0 -4.0 -12.0 8 YEAR - DAY 1964- 8 1968- 5 1969-24 1981- 2 1989- 1 2000-13 1969-19 1970- 4 1999-27 1977-30 1964-30 1964-26 HIG. DRY 15 10.0 15.0 23.0 26.0 31.2 33.4 36.0 32.4 30.0 29.0 18.6 13.0 9 YEAR - DAY 1966-12 1985-26 1977-20 1985-24 1974-23 2002-30 1983-27 1983-15 1975-12 1985- 1 1986- 4 1978-12 LOW. DRY 15 -16.0 -15.2 -6.4 -4.4 3.4 10.0 15.4 14.4 7.0 -3.0 -5.4 -12.6 10 YEAR - DAY 1964-20 1968- 5 1992-11 1981- 2 2003- 2 2000-13 1998-18 2003-12 1991-27 1987-27 1969-19 1990-29 HIG. WET 15 7.0 8.2 13.0 22.4 24.0 26.0 24.4 22.0 21.0 17.6 14.2 9.0 11 YEAR - DAY 1966-31 1968-29 1977-20 2001-23 2001-17 2001-30 1997-23 2001-30 2001-17 1973-11 2003- 2 1989- 5 LOW. WET 15 -17.0 -15.4 -6.4 -5.2 1.8 5.0 10.2 7.0 4.0 -3.6 -7.0 -13.0 12 YEAR - DAY 1964-20 1968- 5 1985-10 1981- 2 2003- 2 2000-13 1965-26 1996-30 1991-27 1987-27 1964-26 1964-26 HIG. MIN. 8.0 7.0 15.0 20.0 21.0 28.0 26.0 25.0 21.0 17.5 12.5 10.0 13 YEAR - DAY 1966-31 1978-22 1974-19 1970-20 1965-18 1977-23 1979- 9 1975- 2 1979-12 1965-14 1993-12 1978-10 LOW. MIN. -25.0 -22.0 -12.5 -10.5 -1.0 2.5 4.0 4.5 -1.5 -4.0 -12.0 -21.0 14 YEAR - DAY 1977-14 1972- 1 1991-13 1981- 3 1989- 3 2000-19 2000-31 1967-19 1973-30 1982-25 1969-19 1990-29 HIG. MAX. 17.5 35.0 27.0 30.5 37.5 42.4 39.0 39.5 35.4 33.0 24.0 22.5 15 YEAR - DAY 2000- 1 2000-14 1966-14 1985-23 1974-22 2003-20 1965-13 1989-11 1988- 6 1980- 2 1979- 3 1998-10 LOW. MAX. -18.0 -14.0 -3.0 2.4 6.4 17.0 21.0 19.0 10.0 4.0 -2.5 -8.0 16 YEAR - DAY 1977-14 1968- 5 1969-24 2003-18 2003- 2 1970-11 1976-22 1975-19 1969-12 1980-21 1993-30 1964-26 HIG. PPTN 34.0 53.0 48.0 50.0 39.5 28.0 21.0 5.0 17.0 24.5 36.0 35.0 17 YEAR - DAY 1965-11 1973-23 1973-23 1971- 7 1996-21 1997-18 1970-16 1989-21 1980-23 1996-17 1994-18 1986-31 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 40 YEARS DURING 1964-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 17.6 18.2 22.4 21.4 22.0 21.8 20.5 21.2 21.4 22.2 19.1 16.4 18 YEAR - DAY 1983-17 2001-28 1977-20 2001-30 2001- 8 2001-13 1969-24 1991-23 1978-27 1978- 2 1975- 7 2003-26 DRY 15 - DRY 09 16.2 11.6 17.2 11.6 14.0 15.0 15.5 24.3 15.0 16.7 14.0 14.4 19 YEAR - DAY 2001- 9 2003-13 1966-14 2003-10 2001- 8 1970-22 1969-14 1970- 4 1980-14 2000-10 1993-14 1999- 7 DRY 15 - DRY 03 14.8 16.4 18.4 16.0 16.0 16.0 20.0 17.8 16.8 21.0 14.2 15.0 20 YEAR - DAY 1991-13 1988- 8 1977-20 2001-30 1995-27 1977-30 1969-14 1965-24 1989- 1 1999-12 1972-18 1967- 1 WET 09 - WET 03 17.0 17.0 17.4 22.0 21.2 19.4 19.0 15.2 21.0 20.4 14.6 14.2 21 YEAR - DAY 1983-17 1980- 4 2001-14 2001-16 2001- 8 2001-13 1969-17 2001-30 1987- 5 2001-16 1976-10 1984-19 WET 15 - WET 09 12.8 10.0 11.4 11.8 13.2 12.4 17.0 13.0 12.0 12.8 12.4 14.0 22 YEAR - DAY 1980-31 1974- 5 1973- 7 2001-16 2001- 8 2001-13 1969-17 1970- 4 1987- 5 1974-15 1998-11 1964-28 WET 15 - WET 03 14.8 13.8 12.0 14.2 14.8 12.0 12.5 10.0 10.6 12.0 13.2 13.4 23 YEAR - DAY 1991-13 1988- 8 2001-14 2001-30 2001-12 2001- 5 1969-29 2001- 7 2001-25 1996- 3 1976-10 1967- 1 DAY BY DAY DRY 03 18.0 16.0 19.8 13.4 13.6 12.4 10.2 12.0 11.0 16.0 18.0 14.4 24 YEAR - DAY 1964-20 1984- 8 1997- 9 1981- 3 2000-11 1966-21 1969- 1 1994-12 1998-16 1984-21 1993-15 1992-30 DAY BY DAY WET 03 18.0 16.0 15.4 13.6 14.8 9.4 8.0 8.2 8.4 12.2 14.0 12.8 25 YEAR - DAY 1964-20 1984- 8 1997- 9 1981- 3 2000-11 2001-16 1995-26 1988-11 1973-27 1987-26 1993-15 1992-30 DAY BY DAY DRY 09 13.4 13.6 17.8 13.0 15.0 19.6 14.8 32.5 15.0 15.2 15.0 15.2 26 YEAR - DAY 1964-20 1984-15 1966-15 1969-14 1965- 3 2000-14 1976-22 1970- 5 1999-27 1980-21 1973- 7 2003-11 DAY BY DAY WET 09 13.6 11.2 15.0 10.8 11.0 14.8 16.5 18.0 12.0 12.4 11.4 11.4 27 YEAR - DAY 1964-20 1980- 1 1969-24 1969-14 2001- 2 2001-14 1969-18 1970- 4 1987- 5 2001- 3 1998-12 1970-15 DAY BY DAY DRY 15 13.4 13.6 17.4 12.0 16.0 17.0 12.6 10.8 11.0 13.7 13.0 13.0 28 YEAR - DAY 1980-25 1985-27 1971-21 1988- 1 1999-20 2000-14 2002- 1 2003-13 1999-29 2000-10 1993-14 1994-21 DAY BY DAY WET 15 13.0 11.4 10.0 10.5 10.0 9.2 10.0 7.6 8.0 9.0 14.0 11.0 29 YEAR - DAY 1980-25 1996- 4 2001-10 1969-14 2001-12 2000-14 1997-24 1995-29 1969-12 2000-10 1993-14 1990-26 DAY BY DAY MIN. 16.0 15.5 13.0 10.5 13.0 9.5 9.0 11.5 11.5 13.0 17.5 12.0 30 YEAR - DAY 1964-20 1984- 9 2000-16 1975- 7 1997- 6 1969-10 1995-17 1994-12 1998-16 1996- 3 1993-15 1977-25 DAY BY DAY MAX. 13.0 31.5 16.0 13.0 14.0 17.8 13.0 9.5 16.5 15.0 14.5 15.2 31 YEAR - DAY 1964-20 2000-15 1966-15 1969-14 1978- 2 2003-21 1976-22 1975-19 1969-12 1980-21 1973- 7 2003-11 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -8.4 0.5 8.3 10.4 17.8 23.3 25.7 24.8 19.7 12.2 5.7 -2.6 11.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -13.9 -3.6 2.6 5.2 10.0 16.6 19.4 17.5 12.5 4.9 0.1 -7.8 5.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. -3.0 4.6 14.1 15.7 25.7 30.1 31.9 32.1 27.0 19.5 11.4 2.6 17.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.9 8.2 11.5 10.5 15.7 13.5 12.5 14.6 14.5 14.6 11.3 10.4 12.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 0.87 2.47 3.61 4.17 5.59 4.90 6.60 5.12 4.37 2.80 2.66 1.28 3.70 MEAN OF MIXING RATIO AT 09 GMT. 2.04 3.15 4.15 4.28 6.12 3.76 6.00 5.20 4.38 3.00 3.30 2.80 4.01 MEAN OF MIXING RATIO AT 15 GMT. 1.31 2.97 4.04 3.92 6.16 3.90 5.82 5.07 3.95 3.42 3.22 2.15 3.83 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.5 -14.0 -2.0 -1.5 3.0 11.5 15.0 11.0 3.5 -2.5 -4.0 -14.5 -19.5 DAY 30 28 5 16 4 5 29 23 27 27 27 10 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.0 10.0 24.0 26.0 30.0 35.0 38.0 36.0 32.5 28.8 19.0 9.2 38.0 DAY 18 10 26 30 9 27 10 15 1 2 18 13 24 HOUR MAXIMUM PRECIPITATION IN MM. 17.0 13.0 15.0 37.0 0.0 0.0 3.0 0.0 0.0 0.0 9.0 8.0 37.0 DAY 1 27 29 23 ** ** 27 ** ** ** 28 26 MONTHLY TOTAL PRECIPITATION IN MM. 36.4 60.0 76.5 103.5 0.0 0.0 3.0 0.0 0.0 0.0 22.0 16.0 317.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 54.5 32.6 0.9 12.0 NO. OF DAYS WITH PRECIPITATION. 6 7 13 10 0 0 1 0 0 0 4 3 44 NO. OF DAYS PRECIPITATION EQUAL 5 7 13 10 0 0 1 0 0 0 4 3 43 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 3 4 0 0 0 0 0 0 0 0 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 36 63 58 56 36 29 33 29 35 38 54 39 42 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 57 42 41 28 14 19 17 19 21 41 55 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 49 61 49 44 32 17 22 20 21 28 46 53 37 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 13 0 0 0 0 0 0 0 0 1 25 67 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 9 1 0 0 0 0 12 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 23 2 0 0 0 0 0 0 0 0 1 8 34 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 18 26 25 5 0 0 0 75 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 24 6 2 0 0 0 0 0 6 17 31 117 DATE OF START AND END FREEZING START = 15 OCT. END = 17 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -0.4 1.2 6.2 11.1 19.3 22.4 25.2 23.6 19.5 16.6 9.8 4.3 13.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.1 -3.7 0.8 4.6 12.5 15.8 19.2 16.9 12.4 10.8 3.8 -0.9 7.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.2 6.1 11.8 17.8 26.1 29.0 31.2 30.4 26.6 22.3 15.8 9.5 19.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.3 9.8 11.0 13.2 13.6 13.2 12.0 13.5 14.2 11.5 12.0 10.4 11.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.23 2.47 3.31 3.31 4.35 5.40 5.17 4.90 5.45 6.04 4.27 2.98 4.16 MEAN OF MIXING RATIO AT 09 GMT. 3.59 3.30 3.44 3.03 4.20 4.40 4.68 4.51 5.58 6.26 5.11 3.85 4.33 MEAN OF MIXING RATIO AT 15 GMT. 3.12 2.76 3.27 3.51 3.75 4.38 4.64 4.33 5.35 5.96 4.63 3.66 4.11 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.0 -8.0 -7.5 0.0 4.5 9.6 12.0 8.0 8.0 2.0 -0.5 -9.5 -14.0 DAY 19 18 16 7 21 24 29 24 25 29 30 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.5 14.0 21.5 27.5 32.0 33.0 39.0 34.0 32.0 27.0 21.0 16.0 39.0 DAY 10 28 11 29 18 17 13 25 18 15 8 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 34.0 16.0 12.5 17.0 11.5 4.0 0.0 0.0 6.5 5.5 15.0 6.0 34.0 DAY 11 14 4 15 3 6 ** ** 21 30 10 29 MONTHLY TOTAL PRECIPITATION IN MM. 217.4 30.3 41.0 31.0 25.5 5.5 0.0 0.0 11.3 11.8 25.3 8.3 407.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 70.9 15.2 2.8 11.1 NO. OF DAYS WITH PRECIPITATION. 12 4 7 2 4 2 0 0 2 4 3 2 42 NO. OF DAYS PRECIPITATION EQUAL 12 3 7 2 4 2 0 0 2 2 3 2 39 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 8 2 1 2 1 0 0 0 0 0 1 0 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 58 65 62 46 36 34 27 31 45 60 69 68 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 56 42 25 22 17 16 16 25 35 43 49 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 54 44 34 22 21 19 19 30 40 50 58 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 16 5 0 0 0 0 0 0 0 0 6 44 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 0 9 2 0 0 0 0 12 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 1 0 0 0 0 0 0 0 0 0 2 6 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 15 22 20 3 0 0 0 64 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 25 12 1 0 0 0 0 0 0 2 19 86 DATE OF START AND END FREEZING START = 11 NOV. END = 7 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. 6.0 6.6 6.8 12.3 17.3 23.7 23.9 22.6 18.8 11.3 6.3 2.9 13.2 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.6 1.5 1.1 6.7 10.9 15.7 16.8 14.6 11.3 4.7 -1.8 -3.6 6.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.3 11.7 12.4 18.0 23.7 31.6 31.1 30.7 26.3 17.9 14.3 9.5 19.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.7 10.2 11.3 11.3 12.8 15.9 14.3 16.1 15.0 13.2 16.0 13.1 13.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.58 3.80 3.84 5.12 6.24 6.31 6.57 6.09 5.01 4.68 3.12 3.08 4.79 MEAN OF MIXING RATIO AT 09 GMT. 4.15 4.26 3.81 5.94 6.24 6.60 6.64 5.77 5.18 4.73 3.59 3.17 5.01 MEAN OF MIXING RATIO AT 15 GMT. 3.90 4.01 4.22 5.54 5.58 5.97 6.44 6.16 5.06 4.84 3.47 3.14 4.86 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -1.5 -5.5 -0.5 4.0 12.0 13.0 11.5 7.0 -0.5 -8.0 -11.0 -11.0 DAY 14 22 3 5 11 1 8 11 20 19 25 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.5 17.5 27.0 25.5 31.5 37.0 35.5 35.0 30.5 23.5 19.0 16.0 37.0 DAY 26 27 14 17 17 14 6 30 1 11 18 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 30.0 25.8 36.0 23.2 5.5 0.0 1.8 0.0 0.0 13.0 0.0 12.0 36.0 DAY 14 3 1 14 27 ** 17 ** ** 15 ** 20 MONTHLY TOTAL PRECIPITATION IN MM. 42.8 61.3 85.4 75.7 14.0 0.0 1.8 0.0 0.0 22.0 0.0 19.0 322.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 58.9 27.9 0.6 12.7 NO. OF DAYS WITH PRECIPITATION. 4 5 5 12 5 0 1 0 0 4 0 4 40 NO. OF DAYS PRECIPITATION EQUAL 4 5 5 12 5 0 1 0 0 4 0 4 40 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 3 3 2 0 0 0 0 0 1 0 1 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 71 70 69 64 52 37 37 37 37 61 64 72 56 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 48 47 44 44 34 23 23 20 23 36 33 42 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 57 54 57 50 36 25 26 26 28 45 43 56 42 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 0 4 0 0 0 0 0 0 0 6 15 28 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 1 0 0 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 23 21 23 4 0 0 0 73 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 13 12 17 1 0 0 0 0 0 1 23 28 95 DATE OF START AND END FREEZING START = 19 OCT. END = 5 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -0.1 -0.2 5.2 8.8 15.3 20.0 24.0 22.6 20.0 12.4 7.5 1.2 11.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.0 -5.5 -1.2 2.7 7.8 10.4 15.8 14.3 11.4 5.3 0.9 -5.5 4.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.7 5.2 11.6 14.8 22.8 29.6 32.1 30.8 28.5 19.6 14.0 7.9 18.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.7 10.7 12.8 12.1 15.0 19.2 16.3 16.5 17.1 14.3 13.1 13.4 14.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.56 3.18 3.55 5.08 6.15 4.63 6.82 4.95 5.56 5.09 4.25 2.91 4.56 MEAN OF MIXING RATIO AT 09 GMT. 3.66 4.23 3.65 5.96 6.57 5.31 7.18 5.54 5.06 5.72 4.92 4.15 5.16 MEAN OF MIXING RATIO AT 15 GMT. 3.19 3.78 3.65 5.65 6.74 5.40 7.16 4.79 5.55 5.33 4.93 3.81 5.00 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -12.5 -10.5 -8.0 2.0 6.0 9.5 4.5 5.5 -0.5 -6.5 -18.5 -18.5 DAY 7 4 1 1 5 20 2 19 30 24 29 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 12.5 20.0 24.5 31.5 39.0 38.0 34.0 33.0 25.0 21.5 14.0 39.0 DAY 17 25 7 21 31 16 20 21 13 12 2 18 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 21.8 12.0 20.5 21.0 0.0 0.0 0.0 0.0 13.6 14.5 5.0 21.8 DAY 22 15 16 16 1 ** ** ** ** 23 13 24 MONTHLY TOTAL PRECIPITATION IN MM. 29.3 53.2 43.8 91.0 43.8 0.0 0.0 0.0 0.0 30.5 22.8 10.6 325.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 38.9 41.5 0.0 19.7 NO. OF DAYS WITH PRECIPITATION. 3 7 5 13 5 0 0 0 0 4 5 4 46 NO. OF DAYS PRECIPITATION EQUAL 3 7 5 13 5 0 0 0 0 4 4 4 45 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 3 3 2 0 0 0 0 1 1 0 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 81 69 73 58 28 38 31 42 59 70 74 58 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 58 73 45 57 37 20 23 19 20 39 47 56 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 75 51 62 45 25 28 19 31 43 57 68 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 17 6 4 0 0 0 0 0 0 3 19 72 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 4 0 0 0 0 0 0 0 0 0 4 10 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 14 25 22 11 0 0 0 76 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 26 23 8 0 0 0 0 0 2 13 29 131 DATE OF START AND END FREEZING START = 24 OCT. END = 15 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -0.5 -0.9 5.6 10.6 15.1 21.5 22.9 22.7 20.6 14.3 7.4 2.0 11.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.5 -6.4 0.2 4.0 8.0 13.4 15.0 14.4 11.5 6.3 1.1 -2.7 4.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.5 4.6 11.0 17.1 22.2 29.6 30.9 31.1 29.7 22.2 13.7 6.7 18.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.0 11.0 10.8 13.1 14.2 16.2 15.9 16.7 18.2 15.9 12.6 9.4 13.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.03 2.97 4.15 5.32 5.77 6.57 6.20 6.30 4.67 4.65 4.52 3.82 4.83 MEAN OF MIXING RATIO AT 09 GMT. 3.88 3.76 4.75 5.73 6.02 6.49 5.50 5.66 5.08 4.91 5.02 4.70 5.13 MEAN OF MIXING RATIO AT 15 GMT. 3.71 3.74 4.49 5.42 5.62 6.83 5.76 5.79 5.34 5.05 5.18 4.54 5.12 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.0 -19.0 -7.0 -2.5 0.5 8.0 7.5 8.0 4.0 3.0 -4.5 -11.0 -19.0 DAY 24 5 25 7 3 10 14 28 19 17 22 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 14.0 18.5 27.0 29.5 35.0 37.0 35.0 32.5 26.5 19.0 11.0 37.0 DAY 15 29 14 18 21 30 1 8 2 1 15 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 15.0 19.8 17.0 23.0 3.0 0.0 0.0 0.0 10.4 18.0 19.0 23.0 DAY 16 23 17 23 22 6 ** ** ** 28 19 10 MONTHLY TOTAL PRECIPITATION IN MM. 34.2 42.9 110.8 38.3 56.0 6.1 0.0 0.0 0.0 12.4 65.4 89.9 456.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.2 22.0 0.0 36.8 NO. OF DAYS WITH PRECIPITATION. 7 6 11 5 7 4 0 0 0 2 9 12 63 NO. OF DAYS PRECIPITATION EQUAL 7 6 11 5 7 3 0 0 0 2 9 11 61 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 6 2 2 0 0 0 0 1 2 4 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 80 70 70 53 42 37 40 38 50 76 80 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 67 58 48 35 25 19 18 19 28 49 71 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 77 62 51 39 33 24 23 26 35 61 79 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 19 5 0 0 0 0 0 0 0 2 7 56 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 5 0 0 0 0 0 0 0 0 0 0 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 17 18 24 17 0 0 0 76 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 25 15 5 0 0 0 0 0 0 9 26 111 DATE OF START AND END FREEZING START = 7 NOV. END = 14 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -4.5 -2.8 9.0 11.7 17.2 22.3 24.4 23.3 18.8 15.1 4.5 4.8 12.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.3 -8.5 3.9 6.1 10.5 15.1 12.5 17.0 11.9 8.9 -0.3 -0.0 5.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.2 2.9 14.0 17.2 24.0 29.5 36.3 29.6 25.7 21.2 9.3 9.5 18.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.5 11.4 10.1 11.1 13.5 14.4 23.8 12.6 13.8 12.3 9.6 9.5 12.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.53 2.76 5.06 5.10 6.34 6.10 5.96 5.47 5.27 5.14 3.67 3.63 4.75 MEAN OF MIXING RATIO AT 09 GMT. 4.11 4.17 5.87 5.96 6.83 6.44 5.75 6.11 5.47 5.49 4.57 3.94 5.39 MEAN OF MIXING RATIO AT 15 GMT. 3.43 3.55 5.55 5.38 6.55 6.01 6.06 5.65 4.69 5.26 4.10 4.06 5.02 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.5 -16.5 -7.0 -2.0 4.5 7.0 9.0 12.5 2.0 0.5 -12.0 -3.5 -20.5 DAY 7 1 25 15 13 1 10 2 14 15 19 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.5 12.0 22.5 28.0 32.5 34.0 38.5 33.0 32.5 29.5 19.0 15.5 38.5 DAY 19 28 11 5 27 14 3 4 10 6 2 25 24 HOUR MAXIMUM PRECIPITATION IN MM. 33.0 16.6 24.0 11.2 12.5 1.5 0.0 0.0 5.8 13.3 13.8 9.4 33.0 DAY 23 22 16 14 17 23 ** ** 12 29 10 7 MONTHLY TOTAL PRECIPITATION IN MM. 109.2 36.8 93.6 71.4 25.3 1.5 0.0 0.0 5.8 27.5 38.8 38.7 448.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.4 21.9 1.3 23.4 NO. OF DAYS WITH PRECIPITATION. 11 6 13 8 6 1 0 0 1 4 4 9 63 NO. OF DAYS PRECIPITATION EQUAL 11 3 12 8 6 1 0 0 1 4 4 9 59 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 2 3 4 1 0 0 0 0 1 2 0 17 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 85 72 65 59 39 48 36 48 57 73 76 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 87 83 58 48 36 24 24 23 27 36 58 51 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 88 82 62 51 42 28 18 26 28 42 66 63 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 22 2 0 0 0 0 0 0 0 6 0 56 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 2 0 0 0 0 2 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 14 5 1 0 0 0 0 0 0 0 0 0 20 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 17 31 16 2 0 0 0 68 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 26 7 3 0 0 0 0 0 0 20 16 101 DATE OF START AND END FREEZING START = 10 NOV. END = 20 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -0.4 4.4 6.7 15.5 20.8 23.9 24.4 26.3 19.2 15.2 10.6 2.1 14.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.2 -0.8 1.7 9.2 14.1 17.0 18.1 20.0 11.7 7.6 3.8 -3.2 7.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.4 9.7 11.8 21.8 27.5 30.7 30.8 32.7 26.6 22.8 17.4 7.5 20.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.6 10.5 10.1 12.6 13.4 13.7 12.7 12.7 14.9 15.2 13.6 10.7 12.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.88 3.43 3.84 4.92 5.78 5.45 6.84 6.53 5.23 4.01 3.42 3.11 4.62 MEAN OF MIXING RATIO AT 09 GMT. 3.83 3.78 4.40 5.01 5.85 6.88 7.11 7.11 6.35 5.06 4.16 3.77 5.28 MEAN OF MIXING RATIO AT 15 GMT. 3.48 3.76 4.10 4.85 5.43 6.93 7.09 6.63 5.84 4.83 4.02 3.45 5.03 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.0 -7.0 -8.5 2.5 8.0 7.0 12.5 14.0 4.5 -3.5 -2.5 -14.0 -14.0 DAY 14 2 15 14 13 12 8 16 21 24 15 16 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.5 15.0 22.0 28.4 35.5 37.5 36.5 37.0 33.5 32.0 22.5 16.5 37.5 DAY 7 19 31 19 31 30 1 5 7 2 7 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.6 8.0 11.0 10.4 20.0 0.0 21.0 0.0 0.0 0.0 1.6 10.0 21.0 DAY 23 14 5 11 18 ** 16 ** ** ** 14 15 MONTHLY TOTAL PRECIPITATION IN MM. 47.2 10.2 44.4 20.2 22.6 0.0 25.4 0.0 0.0 0.0 2.0 24.6 196.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 51.8 21.8 12.9 13.5 NO. OF DAYS WITH PRECIPITATION. 7 2 10 3 3 0 2 0 0 0 2 6 35 NO. OF DAYS PRECIPITATION EQUAL 7 2 9 3 3 0 2 0 0 0 1 5 32 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 2 1 1 0 1 0 0 0 0 1 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 76 71 55 44 36 41 34 49 49 55 79 56 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 47 52 31 24 25 24 24 29 27 31 59 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 82 60 57 37 28 31 31 25 33 33 43 68 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 3 2 0 0 0 0 0 0 0 0 14 38 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 3 12 0 0 0 0 21 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 0 0 0 0 0 0 0 0 0 0 5 7 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 10 20 18 26 11 2 0 0 87 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 19 14 0 0 0 0 0 0 4 5 21 93 DATE OF START AND END FREEZING START = 23 OCT. END = 27 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. 0.1 2.5 8.7 12.6 20.6 23.4 ***** 23.1 17.7 12.4 7.2 3.4 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -5.7 -2.2 3.2 6.6 12.8 16.4 ***** 14.7 9.6 3.8 0.7 -3.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.9 7.2 14.3 18.5 28.3 30.5 ***** 31.5 25.7 21.1 13.7 10.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.6 9.4 11.1 11.9 15.5 14.1 ***** 16.8 16.1 17.3 13.0 13.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.58 3.35 4.01 5.24 5.81 5.86 ***** 5.57 4.11 4.07 4.59 3.48 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.80 3.80 4.78 5.66 6.39 6.69 ***** 5.59 4.48 4.73 5.37 3.77 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.46 3.69 4.40 5.57 6.07 5.92 ***** 5.68 4.20 4.46 4.96 3.82 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.0 -9.0 -4.5 1.0 6.5 12.0 ***** 10.5 4.0 -1.0 -4.5 -13.5 ****** DAY 20 3 1 4 2 20 ** 3 12 12 2 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.5 15.0 24.5 26.5 32.5 34.5 ***** 36.5 33.0 26.0 18.0 16.0 ****** DAY 7 23 14 25 23 25 ** 22 1 6 4 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 49.4 9.4 50.0 3.0 0.0 ***** 0.0 0.0 5.0 15.0 20.0 ****** DAY 19 15 25 7 19 ** ** ** ** 30 11 21 MONTHLY TOTAL PRECIPITATION IN MM. 19.4 109.0 25.4 102.4 3.0 0.0 ***** 0.0 0.0 5.0 36.6 30.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 46.5 31.9 0.0 21.6 NO. OF DAYS WITH PRECIPITATION. 3 8 6 5 1 0 *** 0 0 1 4 6 *** NO. OF DAYS PRECIPITATION EQUAL 3 8 6 5 1 0 *** 0 0 1 4 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 0 3 0 0 *** 0 0 0 1 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 81 63 68 48 37 *** 35 38 53 72 74 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 66 59 48 42 25 23 *** 18 21 30 52 49 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 77 71 52 48 30 25 *** 23 23 36 60 64 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 8 1 0 0 0 *** 0 0 0 1 11 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 *** 0 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 0 0 0 0 0 *** 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 13 19 *** 24 4 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 21 11 0 0 0 *** 0 0 6 14 26 *** DATE OF START AND END FREEZING START = 12 OCT. END = 26 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -5.3 -5.9 3.0 11.8 13.1 20.5 21.7 24.3 18.7 16.1 9.0 -0.6 10.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -11.2 -13.6 -2.7 4.1 5.8 11.9 13.8 17.2 9.7 8.5 1.8 -5.4 3.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.7 1.8 8.6 19.5 20.5 29.1 29.6 31.4 27.8 23.6 16.2 4.2 17.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.9 15.4 11.3 15.4 14.7 17.2 15.8 14.2 18.1 15.1 14.4 9.6 14.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.47 1.97 3.98 5.15 6.19 8.26 6.28 6.68 5.38 4.79 3.72 2.90 4.81 MEAN OF MIXING RATIO AT 09 GMT. 3.62 3.69 4.92 5.51 6.79 8.80 6.03 7.07 5.99 5.49 4.51 3.81 5.52 MEAN OF MIXING RATIO AT 15 GMT. 3.08 2.78 4.51 5.31 6.67 8.47 5.35 6.86 5.73 5.43 4.62 3.52 5.19 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -23.5 -22.0 -8.0 -1.5 2.0 7.5 10.0 10.0 -1.0 2.0 -4.0 -16.0 -23.5 DAY 25 1 18 16 11 19 13 5 19 20 27 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.0 9.0 18.5 27.0 29.0 37.0 33.5 36.5 32.0 28.5 22.0 12.0 37.0 DAY 17 17 30 30 30 23 1 7 6 4 4 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 16.6 34.0 19.0 19.6 10.0 0.0 0.0 7.0 8.0 18.0 13.0 34.0 DAY 18 9 7 26 7 26 ** ** 18 9 29 15 MONTHLY TOTAL PRECIPITATION IN MM. 61.4 30.6 125.3 55.8 83.3 30.2 0.0 0.0 9.5 11.4 18.0 31.0 456.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.6 37.1 2.1 13.2 NO. OF DAYS WITH PRECIPITATION. 8 3 17 8 9 8 0 0 2 2 1 6 64 NO. OF DAYS PRECIPITATION EQUAL 8 3 17 8 9 7 0 0 2 2 1 6 63 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 4 2 3 1 0 0 0 0 1 2 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 85 82 63 67 60 39 37 46 54 67 84 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 87 81 70 40 45 33 21 24 25 29 37 70 47 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 90 84 75 45 52 39 23 27 28 39 48 76 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 27 12 0 0 0 0 0 0 0 1 17 85 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 3 0 0 0 0 3 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 12 10 0 0 0 0 0 0 0 0 0 8 30 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 12 25 13 0 0 0 56 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 29 24 3 0 0 0 0 1 0 14 30 132 DATE OF START AND END FREEZING START = 19 SEP. END = 19 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -3.9 4.1 5.4 12.3 17.8 24.6 26.5 24.1 19.7 16.2 6.8 2.0 13.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -9.0 -0.9 0.5 6.4 11.6 17.4 19.5 17.8 12.2 8.7 -0.1 -4.2 6.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.2 9.0 10.3 18.3 24.0 31.9 33.6 30.4 27.1 23.6 13.8 8.3 19.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.2 9.9 9.8 11.8 12.4 14.5 14.1 12.6 14.9 14.9 13.8 12.5 12.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.40 3.89 4.27 5.22 6.76 6.86 7.12 7.52 5.70 3.99 3.35 2.75 4.99 MEAN OF MIXING RATIO AT 09 GMT. 3.56 4.60 4.80 5.82 7.86 7.34 8.21 7.65 6.74 5.62 3.87 3.19 5.77 MEAN OF MIXING RATIO AT 15 GMT. 2.89 4.37 4.82 5.27 6.98 6.50 7.65 7.36 5.91 5.13 3.94 3.08 5.33 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -21.2 -15.5 -8.0 0.0 7.5 13.5 15.5 12.0 -1.5 0.0 -4.0 -11.0 -21.2 DAY 1 7 10 1 2 8 30 9 30 1 7 15 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 15.5 20.0 27.0 32.5 35.0 38.5 34.5 31.5 29.0 23.5 14.5 38.5 DAY 15 17 21 29 30 12 11 3 1 11 2 28 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 53.0 48.0 12.8 19.0 0.0 0.0 0.0 0.0 0.4 5.6 9.0 53.0 DAY 12 23 23 13 1 ** ** ** ** 18 7 10 MONTHLY TOTAL PRECIPITATION IN MM. 32.9 93.4 100.7 40.8 26.6 0.0 0.0 0.0 0.0 0.4 6.6 15.0 316.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 71.7 21.3 0.0 7.0 NO. OF DAYS WITH PRECIPITATION. 8 7 7 5 3 0 0 0 0 1 2 3 36 NO. OF DAYS PRECIPITATION EQUAL 6 7 7 5 3 0 0 0 0 0 2 3 33 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 3 2 1 0 0 0 0 0 0 0 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 86 85 81 66 62 41 37 47 50 44 74 77 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 81 61 60 44 42 24 24 26 28 28 39 49 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 85 71 72 47 46 26 28 30 31 35 51 66 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 5 3 0 0 0 0 0 0 0 2 15 50 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 8 7 0 0 0 0 16 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 12 0 0 0 0 0 0 0 0 0 0 1 13 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 26 30 18 8 0 0 0 85 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 15 13 1 0 0 0 0 2 1 21 31 114 DATE OF START AND END FREEZING START = 27 SEP. END = 1 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE YEAR 1974 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -3.1 -2.9 7.7 11.7 19.0 23.3 25.0 22.3 19.2 11.2 7.5 -0.4 11.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.9 -8.0 2.6 6.3 11.5 15.6 19.2 15.1 12.0 3.6 0.1 -5.8 5.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.6 2.2 12.9 17.0 26.6 31.0 30.7 29.4 26.4 18.9 15.0 5.0 18.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.5 10.2 10.3 10.7 15.1 15.4 11.5 14.3 14.4 15.3 14.9 10.8 12.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.69 2.49 4.33 5.11 5.91 7.17 7.72 5.90 5.32 3.05 3.07 2.50 4.60 MEAN OF MIXING RATIO AT 09 GMT. 3.78 4.12 5.57 5.17 6.86 6.91 7.34 6.96 6.74 4.80 4.09 3.94 5.52 MEAN OF MIXING RATIO AT 15 GMT. 3.06 3.39 4.65 5.58 6.23 6.70 6.81 6.18 6.03 3.91 4.20 3.47 5.02 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -19.5 -7.5 -1.6 4.0 10.0 16.0 9.5 6.0 0.0 -4.0 -12.5 -19.5 DAY 17 4 10 2 3 13 17 31 30 14 29 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 10.0 25.0 25.5 37.5 36.0 36.5 33.5 32.0 23.0 19.0 10.0 37.5 DAY 18 14 24 24 22 27 1 10 3 24 2 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 19.0 16.0 16.0 6.5 15.0 1.4 0.0 0.0 0.0 0.2 18.0 19.0 DAY 16 27 2 11 1 11 21 ** ** ** 28 23 MONTHLY TOTAL PRECIPITATION IN MM. 49.8 42.4 62.7 44.6 21.5 17.0 1.4 0.0 0.0 0.0 0.2 56.6 296.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 52.3 28.1 0.5 19.2 NO. OF DAYS WITH PRECIPITATION. 7 7 7 7 5 2 1 0 0 0 1 5 42 NO. OF DAYS PRECIPITATION EQUAL 7 7 7 6 5 2 1 0 0 0 0 5 40 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 3 2 0 1 0 0 0 0 0 3 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 90 86 75 63 53 49 43 43 47 49 61 75 61 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 84 85 60 44 34 23 25 26 30 33 36 68 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 85 91 63 55 38 28 27 27 32 38 52 78 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 19 8 0 0 0 0 0 0 0 1 23 79 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 4 0 0 0 0 0 5 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 7 9 1 0 0 0 0 0 0 0 0 0 17 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 9 22 21 15 7 0 0 0 74 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 26 12 1 0 0 0 0 0 1 18 31 120 DATE OF START AND END FREEZING START = 14 OCT. END = 2 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE YEAR 1975 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -1.5 -0.3 6.0 12.4 17.9 23.3 27.0 24.0 20.4 12.9 5.1 1.4 12.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.0 -5.1 -0.3 5.5 10.7 16.2 19.9 17.7 13.2 5.0 -0.8 -2.8 6.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.0 4.4 12.4 19.3 25.1 30.3 34.2 30.3 27.6 20.9 11.0 5.7 18.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.0 9.5 12.7 13.8 14.4 14.1 14.3 12.6 14.4 15.9 11.8 8.5 12.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.74 3.23 4.08 5.30 6.62 6.34 5.97 6.33 5.72 4.02 3.58 3.44 4.78 MEAN OF MIXING RATIO AT 09 GMT. 3.78 4.26 4.40 5.37 6.73 6.86 6.87 6.83 6.75 5.26 4.56 4.40 5.51 MEAN OF MIXING RATIO AT 15 GMT. 3.30 3.77 4.32 5.23 6.64 6.45 6.52 6.17 6.09 5.15 4.15 4.14 5.16 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.0 -12.5 -8.5 -5.0 3.5 10.0 15.0 13.0 8.0 -2.0 -8.6 -10.5 -16.0 DAY 14 14 5 6 5 9 1 19 30 24 7 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 15.5 21.0 27.0 31.5 35.5 37.0 36.0 34.5 29.0 18.0 11.0 37.0 DAY 3 24 27 15 30 15 3 15 13 3 1 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 31.0 8.0 26.0 7.0 10.0 0.0 0.0 0.0 1.4 11.0 27.0 31.0 DAY 25 26 28 24 14 3 ** ** ** 17 12 24 MONTHLY TOTAL PRECIPITATION IN MM. 56.8 76.9 23.9 46.2 22.4 10.0 0.0 0.0 0.0 1.4 31.0 55.6 324.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 48.6 24.2 0.0 27.1 NO. OF DAYS WITH PRECIPITATION. 9 8 6 5 6 1 0 0 0 1 5 6 47 NO. OF DAYS PRECIPITATION EQUAL 9 8 5 5 5 1 0 0 0 1 5 6 45 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 0 2 0 1 0 0 0 0 2 2 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 86 79 65 57 38 31 41 47 61 80 86 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 72 78 50 37 32 24 20 25 28 34 53 72 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 81 54 45 40 27 22 27 32 41 62 82 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 19 8 1 0 0 0 0 0 0 4 10 67 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 11 6 0 0 0 0 18 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 5 1 0 0 0 0 0 0 0 1 5 14 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 15 31 18 7 0 0 0 75 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 23 17 4 0 0 0 0 0 9 16 26 125 DATE OF START AND END FREEZING START = 21 OCT. END = 6 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. 2.9 0.2 2.8 10.9 17.7 22.9 26.7 25.0 21.1 14.7 5.5 2.0 12.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.0 -4.4 -1.9 5.0 10.3 16.0 20.3 18.6 13.2 8.1 -2.0 -2.9 6.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.8 4.8 7.5 16.8 25.0 29.7 33.1 31.5 28.9 21.3 13.0 6.9 18.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.8 9.2 9.4 11.8 14.7 13.7 12.8 12.9 15.7 13.2 15.0 9.8 12.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.98 3.32 3.96 5.88 6.50 7.46 7.55 6.26 5.59 4.48 3.29 3.46 5.14 MEAN OF MIXING RATIO AT 09 GMT. 4.39 4.62 4.69 6.71 6.88 7.58 7.95 7.36 7.44 5.68 4.64 4.13 6.00 MEAN OF MIXING RATIO AT 15 GMT. 4.35 4.02 4.42 6.37 6.25 7.26 7.28 6.62 6.83 5.18 4.46 3.94 5.58 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.5 -14.0 -8.5 -5.0 6.0 12.0 16.0 13.5 7.0 0.0 -6.5 -6.5 -14.0 DAY 15 18 13 4 1 5 23 28 14 31 10 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 12.5 16.5 25.5 30.0 34.5 37.5 34.0 33.5 30.5 20.0 12.5 37.5 DAY 19 10 21 19 31 30 7 3 6 18 4 16 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 40.0 26.0 27.0 15.6 10.0 4.6 0.0 0.0 12.0 5.5 18.0 40.0 DAY 31 11 22 22 8 8 22 ** ** 30 28 31 MONTHLY TOTAL PRECIPITATION IN MM. 41.8 84.9 82.4 99.2 22.8 25.3 4.6 0.0 0.0 14.0 9.9 48.4 433.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 48.3 34.0 1.1 16.7 NO. OF DAYS WITH PRECIPITATION. 7 8 12 10 4 4 1 0 0 3 3 8 60 NO. OF DAYS PRECIPITATION EQUAL 7 8 11 10 4 4 1 0 0 2 3 5 55 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 2 4 1 1 0 0 0 1 0 2 16 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 84 90 77 58 49 39 36 46 52 76 88 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 80 72 55 33 28 25 24 27 36 45 63 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 82 77 59 37 35 27 25 31 40 57 80 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 8 14 7 1 0 0 0 0 0 0 12 14 56 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 9 6 0 0 0 0 16 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 9 4 0 0 0 0 0 0 0 0 0 14 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 16 29 27 12 1 0 0 86 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 17 18 25 3 0 0 0 0 0 1 22 28 114 DATE OF START AND END FREEZING START = 31 OCT. END = 5 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -8.2 3.0 11.3 13.8 18.2 25.3 26.5 24.0 19.5 13.8 7.5 3.4 13.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -12.2 -3.6 4.5 8.0 11.8 18.3 19.9 16.6 11.5 7.7 2.4 -1.1 7.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. -4.2 9.8 18.1 19.7 24.6 32.3 33.2 31.3 27.5 20.0 12.6 7.9 19.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.0 13.4 13.6 11.7 12.8 14.0 13.3 14.7 16.0 12.3 10.2 9.0 12.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 3.80 4.53 5.63 7.05 8.03 8.28 6.92 4.85 4.96 4.59 3.62 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 4.46 5.82 6.23 7.96 9.16 8.78 8.20 5.77 6.34 5.51 4.71 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 4.00 4.84 5.90 7.66 8.27 8.29 7.38 5.23 6.05 5.29 4.29 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -25.0 -15.5 -0.5 1.5 8.5 12.5 13.5 10.5 6.0 0.0 -2.0 -11.5 -25.0 DAY 14 1 1 3 8 1 1 31 7 24 29 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.0 16.0 27.0 26.0 29.0 38.0 36.5 37.5 31.5 30.0 16.5 15.0 38.0 DAY 9 21 20 15 15 20 12 17 12 3 13 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 27.0 16.0 13.0 10.0 11.6 8.0 0.0 2.0 0.0 21.0 12.4 18.0 27.0 DAY 8 24 27 21 26 2 ** 19 ** 23 1 23 MONTHLY TOTAL PRECIPITATION IN MM. 93.5 34.0 22.0 22.0 44.1 12.6 0.0 2.0 0.0 67.2 43.8 60.7 401.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 37.2 19.6 0.5 42.7 NO. OF DAYS WITH PRECIPITATION. 8 3 2 4 8 3 0 1 0 8 8 9 54 NO. OF DAYS PRECIPITATION EQUAL 8 3 2 4 7 3 0 1 0 8 7 8 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 2 1 1 2 0 0 0 0 4 1 2 17 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 89 68 65 63 47 42 43 45 62 79 81 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 58 42 42 41 28 26 28 24 46 55 66 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 66 45 47 48 31 30 31 27 54 70 74 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 9 0 0 0 0 0 0 0 0 0 7 45 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 14 1 0 0 0 0 23 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 18 1 0 0 0 0 0 0 0 0 0 1 20 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 24 29 21 5 1 0 0 80 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 26 3 0 0 0 0 0 0 2 3 13 78 DATE OF START AND END FREEZING START = 24 OCT. END = 17 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -0.1 2.4 6.1 12.2 17.6 23.1 25.4 23.0 20.8 14.9 4.5 5.0 12.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.3 -3.1 0.0 5.2 10.8 15.7 19.3 14.9 11.8 6.7 -0.4 0.6 6.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.2 7.9 12.2 19.2 24.3 30.5 31.6 31.1 29.9 23.1 9.4 9.4 19.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.5 11.0 12.2 14.0 13.5 14.8 12.3 16.2 18.1 16.4 9.8 8.8 13.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.84 3.42 3.74 4.70 7.18 7.42 7.33 5.58 5.09 4.53 3.90 4.18 4.99 MEAN OF MIXING RATIO AT 09 GMT. 3.80 4.72 4.75 4.96 8.01 8.23 7.84 6.61 6.28 5.74 5.29 5.01 5.94 MEAN OF MIXING RATIO AT 15 GMT. 3.45 4.15 4.44 4.65 7.14 7.73 7.09 5.78 6.01 5.64 4.49 4.78 5.45 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -13.0 -5.0 1.0 3.5 8.0 14.0 9.5 5.0 2.5 -4.5 -9.5 -15.0 DAY 23 15 1 15 3 9 12 1 29 3 30 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 15.0 22.5 27.5 31.0 37.5 38.5 34.5 33.5 28.0 16.5 18.0 38.5 DAY 3 18 31 30 14 30 1 19 12 1 1 12 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.8 34.0 9.0 13.0 17.0 7.6 0.0 0.0 0.0 0.0 18.0 13.0 34.0 DAY 21 12 7 15 2 20 ** ** ** ** 1 3 MONTHLY TOTAL PRECIPITATION IN MM. 52.4 65.6 17.2 49.8 39.2 7.6 0.0 0.0 0.0 0.0 44.2 33.6 309.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 43.7 31.2 0.0 25.1 NO. OF DAYS WITH PRECIPITATION. 7 8 4 6 5 1 0 0 0 0 7 7 45 NO. OF DAYS PRECIPITATION EQUAL 7 8 4 6 5 1 0 0 0 0 6 6 43 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 0 2 1 0 0 0 0 0 2 1 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 86 76 67 66 48 41 39 46 58 83 81 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 66 64 52 35 42 29 25 22 22 31 67 65 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 83 64 39 49 35 28 25 29 40 77 78 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 15 2 0 0 0 0 0 0 0 3 5 44 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 10 0 0 0 0 0 13 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 4 0 0 0 0 0 0 0 0 0 0 0 4 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 19 20 22 15 0 0 0 77 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 20 19 0 0 0 0 0 0 0 20 18 107 DATE OF START AND END FREEZING START = 3 NOV. END = 23 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.1 2.8 4.3 13.9 15.3 21.9 26.6 23.0 20.4 17.3 10.0 2.9 13.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.7 -1.8 -0.5 7.2 7.2 13.9 20.2 16.8 12.7 9.6 1.6 -1.5 6.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.8 7.3 9.1 20.6 23.3 29.9 33.0 29.3 28.0 24.9 18.2 7.2 19.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.5 9.1 9.6 13.4 16.1 16.0 12.8 12.5 15.3 15.3 16.6 8.7 12.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.38 3.71 4.09 5.30 4.80 6.77 6.32 5.78 5.73 4.88 2.73 3.72 4.77 MEAN OF MIXING RATIO AT 09 GMT. 4.50 4.76 5.49 6.06 5.70 6.98 6.28 5.81 6.26 6.09 4.45 4.49 5.57 MEAN OF MIXING RATIO AT 15 GMT. 3.97 4.28 4.83 5.43 5.03 6.24 5.54 6.19 6.59 6.01 4.19 4.10 5.20 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -12.0 -10.0 -5.0 2.0 9.0 15.0 11.5 6.5 5.5 -3.0 -11.0 -12.5 DAY 27 19 7 30 11 1 24 31 24 20 22 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 14.5 19.5 29.0 29.5 34.5 38.0 33.5 34.5 29.0 24.0 15.0 38.0 DAY 4 16 20 9 25 25 8 17 12 5 3 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.2 33.0 19.0 20.6 6.0 8.0 0.0 0.0 0.0 9.0 11.5 21.0 33.0 DAY 24 9 28 17 7 11 ** ** ** 27 5 9 MONTHLY TOTAL PRECIPITATION IN MM. 70.0 69.8 84.0 26.6 8.0 8.8 0.0 0.0 0.0 9.0 11.5 69.6 357.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 62.6 12.1 0.0 25.2 NO. OF DAYS WITH PRECIPITATION. 8 6 13 2 2 2 0 0 0 1 1 11 46 NO. OF DAYS PRECIPITATION EQUAL 7 5 12 2 2 1 0 0 0 1 1 10 41 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 3 3 1 0 0 0 0 0 0 1 2 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 87 84 62 54 48 34 36 52 52 49 82 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 72 71 42 31 25 19 21 26 29 32 66 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 78 76 45 33 30 20 29 37 39 41 79 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 10 4 9 1 0 0 0 0 0 0 0 4 28 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 14 1 1 0 0 0 17 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 1 4 0 0 0 0 0 0 0 0 0 7 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 17 28 11 10 0 0 0 66 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 23 21 13 3 0 0 0 0 0 0 14 26 100 DATE OF START AND END FREEZING START = 9 NOV. END = 30 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -1.6 -0.8 6.2 16.2 18.5 23.7 25.4 23.6 19.8 14.5 8.7 4.5 13.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.5 -6.1 0.8 10.6 10.3 15.8 18.5 15.5 10.8 7.4 2.6 -0.9 6.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.4 4.5 11.6 21.8 26.7 31.5 32.3 31.7 28.8 21.6 14.8 9.8 19.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.9 10.6 10.8 11.2 16.4 15.7 13.8 16.2 18.0 14.2 12.2 10.7 13.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.70 2.99 4.37 6.54 6.50 6.83 7.27 6.28 4.82 4.60 4.54 3.48 5.08 MEAN OF MIXING RATIO AT 09 GMT. 3.87 4.20 5.33 6.43 6.75 8.02 7.06 7.87 5.85 5.31 5.19 4.19 5.84 MEAN OF MIXING RATIO AT 15 GMT. 3.05 3.75 5.00 6.18 6.81 8.00 6.40 6.82 5.46 5.34 4.87 3.84 5.46 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.0 -18.5 -5.0 2.5 7.0 10.5 12.0 10.5 7.0 -1.0 -1.5 -8.0 -18.5 DAY 25 3 5 4 12 13 1 31 10 22 26 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.5 10.5 18.5 28.0 32.0 38.0 35.0 36.5 32.0 33.0 20.0 19.0 38.0 DAY 6 18 25 14 15 9 6 20 6 2 13 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.8 23.0 15.0 19.0 7.0 1.6 0.0 0.0 17.0 9.4 10.0 5.0 23.0 DAY 14 12 19 4 27 1 ** ** 23 21 19 26 MONTHLY TOTAL PRECIPITATION IN MM. 74.4 55.2 50.0 21.4 16.0 1.6 0.0 0.0 17.0 13.4 16.8 13.2 279.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 64.4 14.0 6.1 15.6 NO. OF DAYS WITH PRECIPITATION. 9 7 8 3 5 1 0 0 1 3 3 4 44 NO. OF DAYS PRECIPITATION EQUAL 9 7 7 2 4 1 0 0 1 2 2 4 39 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 2 1 0 0 0 0 1 0 1 0 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 81 76 57 55 43 39 42 46 56 73 73 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 73 76 60 39 31 27 22 26 24 33 48 53 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 84 70 44 38 35 24 28 30 43 57 63 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 19 1 0 0 0 0 0 0 0 0 7 45 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 5 0 0 0 0 0 6 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 5 3 0 0 0 0 0 0 0 0 0 0 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 7 19 31 26 14 2 0 0 99 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 26 14 0 0 0 0 0 0 2 5 21 98 DATE OF START AND END FREEZING START = 22 OCT. END = 17 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.4 3.4 8.8 12.5 17.4 21.6 24.5 23.6 20.1 12.4 9.2 4.3 13.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.8 -1.8 3.1 5.7 10.0 14.1 18.2 17.0 11.6 5.7 2.9 -1.6 6.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.6 9.0 14.8 19.6 25.0 29.1 30.8 30.3 28.4 19.1 15.5 10.1 19.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.4 10.8 11.7 13.9 15.0 15.0 12.6 13.3 16.8 13.4 12.6 11.7 13.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.17 3.59 4.64 5.71 6.77 7.64 8.57 6.89 5.04 4.87 3.75 3.24 5.32 MEAN OF MIXING RATIO AT 09 GMT. 4.04 4.72 5.31 6.01 7.50 7.38 7.97 7.27 6.15 6.60 4.72 4.05 5.98 MEAN OF MIXING RATIO AT 15 GMT. 3.74 4.29 5.06 6.28 7.58 7.46 8.09 6.65 5.68 5.74 4.43 4.02 5.75 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.5 -5.5 -1.5 -10.5 3.5 10.0 12.5 12.5 2.0 0.5 -2.5 -8.0 -10.5 DAY 4 6 1 3 4 1 21 30 24 24 25 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 14.0 22.0 27.0 32.5 33.0 35.5 34.0 34.0 23.0 21.5 15.0 35.5 DAY 18 9 26 26 28 17 12 9 14 12 5 17 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.4 18.0 43.5 27.5 15.6 0.8 1.5 0.0 0.8 10.0 15.0 15.0 43.5 DAY 2 22 28 2 1 29 17 ** 23 19 21 30 MONTHLY TOTAL PRECIPITATION IN MM. 49.2 53.9 108.3 91.2 37.4 1.2 1.5 0.0 1.0 20.5 24.0 33.5 421.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.1 30.8 0.6 18.5 NO. OF DAYS WITH PRECIPITATION. 7 8 11 9 6 2 1 0 2 4 2 3 55 NO. OF DAYS PRECIPITATION EQUAL 7 8 11 9 6 0 1 0 0 4 2 3 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 3 3 1 0 0 0 0 1 1 2 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 80 76 69 63 55 47 43 45 62 60 70 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 63 50 42 39 29 28 25 26 44 41 51 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 72 62 54 48 37 34 29 31 51 52 66 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 13 9 0 1 0 0 0 0 0 0 0 3 26 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 2 0 0 0 0 0 3 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 1 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 14 18 20 10 0 0 0 65 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 16 7 3 0 0 0 0 0 0 11 24 83 DATE OF START AND END FREEZING START = 10 NOV. END = 5 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -1.3 -1.4 3.9 14.6 18.8 23.0 ***** 23.5 18.5 12.2 4.5 -1.0 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -5.7 -6.9 -2.0 7.2 11.2 15.0 ***** 15.7 10.5 6.2 -0.0 -6.6 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.2 4.2 9.6 22.0 26.4 30.9 ***** 31.3 26.6 18.1 9.1 4.6 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.9 11.1 11.6 14.8 15.2 15.9 ***** 15.6 16.1 11.9 9.1 11.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.79 2.57 3.55 5.36 6.95 7.49 ***** 6.17 4.82 6.01 4.14 2.61 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.18 4.07 4.79 5.62 7.98 8.57 ***** 7.80 5.77 7.01 5.04 3.94 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.21 3.39 4.46 5.46 7.05 7.71 ***** 7.48 5.27 6.76 4.72 3.42 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.5 -15.0 -8.0 0.0 4.0 11.0 ***** 8.5 5.5 -4.0 -3.0 -10.5 ****** DAY 13 20 3 1 12 1 ** 27 22 25 18 9 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 9.0 17.5 28.0 32.0 35.0 ***** 38.0 30.5 25.0 17.0 10.5 ****** DAY 10 17 24 30 20 8 ** 4 11 2 9 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 28.0 27.0 23.0 8.0 9.4 0.0 ***** 0.0 0.0 9.6 8.0 18.6 ****** DAY 14 18 19 22 23 ** ** ** ** 29 1 29 MONTHLY TOTAL PRECIPITATION IN MM. 66.5 87.8 113.5 15.8 24.4 0.0 ***** 0.0 0.0 25.4 27.5 45.4 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 65.9 9.9 0.0 24.2 NO. OF DAYS WITH PRECIPITATION. 6 12 11 4 5 0 *** 0 0 7 6 6 *** NO. OF DAYS PRECIPITATION EQUAL 6 12 11 3 5 0 *** 0 0 6 6 6 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 4 0 0 0 *** 0 0 0 0 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 80 80 60 59 48 *** 40 45 72 82 85 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 82 76 64 33 36 29 *** 26 25 52 64 71 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 77 80 75 42 42 36 *** 33 30 65 76 83 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 25 9 0 0 0 *** 0 0 1 0 29 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 6 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 4 2 0 0 0 0 *** 0 0 0 0 2 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 22 *** 15 2 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 28 22 1 0 0 *** 0 0 3 16 31 *** DATE OF START AND END FREEZING START = 25 OCT. END = 1 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -1.6 2.1 3.5 11.7 18.0 23.8 27.0 25.6 20.3 13.4 10.0 0.9 12.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.2 -4.2 -2.4 5.7 11.3 16.5 20.1 18.3 12.7 5.3 3.1 -4.0 6.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.0 8.3 9.3 17.8 24.7 31.1 34.0 33.0 27.9 21.5 16.8 5.7 19.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.2 12.5 11.7 12.1 13.4 14.6 13.9 14.7 15.2 16.2 13.7 9.7 13.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.80 2.87 3.32 5.55 6.60 7.70 7.89 7.57 5.92 3.57 4.09 3.31 5.10 MEAN OF MIXING RATIO AT 09 GMT. 4.07 4.07 4.08 5.78 7.42 8.49 7.94 8.57 6.87 4.55 4.75 4.52 5.93 MEAN OF MIXING RATIO AT 15 GMT. 3.36 3.74 3.84 5.78 6.93 7.29 7.16 6.84 5.71 4.28 4.84 3.91 5.31 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.5 -8.5 -6.0 -0.5 4.0 9.0 15.0 14.0 6.5 0.0 -1.5 -11.5 -18.5 DAY 28 1 20 13 4 3 4 12 16 22 27 19 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 12.0 16.5 26.0 28.5 36.0 38.5 36.0 34.0 29.5 22.5 15.0 38.5 DAY 2 20 5 22 13 22 26 15 5 4 1 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 23.0 15.6 20.6 14.4 5.0 0.0 0.0 0.0 0.0 0.0 10.2 17.5 23.0 DAY 25 19 7 5 10 ** ** ** ** ** 16 12 MONTHLY TOTAL PRECIPITATION IN MM. 65.5 28.4 51.6 45.4 19.0 0.0 0.0 0.0 0.0 0.0 21.8 53.0 284.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 51.1 22.6 0.0 26.3 NO. OF DAYS WITH PRECIPITATION. 8 3 7 6 5 0 0 0 0 0 3 7 39 NO. OF DAYS PRECIPITATION EQUAL 8 3 6 6 5 0 0 0 0 0 3 7 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 1 2 2 0 0 0 0 0 0 1 2 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 77 75 70 58 47 38 44 49 49 65 83 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 76 56 54 45 36 29 23 26 28 26 39 75 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 82 73 69 53 44 30 23 25 29 35 53 83 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 19 8 0 0 0 0 0 0 0 0 16 62 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 14 5 0 0 0 0 23 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 9 0 0 0 0 0 0 0 0 0 0 7 16 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 20 29 30 9 0 0 0 88 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 24 25 2 0 0 0 0 0 1 5 21 107 DATE OF START AND END FREEZING START = 22 OCT. END = 13 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. 0.1 -2.8 8.0 12.9 ***** 22.2 25.7 26.0 19.5 12.2 7.9 -2.0 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -5.2 -9.6 2.6 6.0 ***** 15.2 19.8 19.0 11.6 4.2 1.9 -7.6 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.6 4.2 13.3 19.6 ***** 29.2 31.6 32.9 27.3 20.2 13.9 3.5 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.8 13.8 10.7 13.6 ***** 14.0 11.8 13.9 15.7 16.0 12.0 11.1 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.90 2.40 4.80 5.11 ***** 6.90 7.03 7.29 5.31 3.45 4.14 2.53 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.83 3.72 5.32 5.92 ***** 6.93 6.86 7.36 6.76 4.83 5.11 4.12 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.77 3.16 5.09 5.71 ***** 6.35 6.76 6.79 5.76 4.42 4.75 3.44 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -16.5 -7.0 0.0 ***** 9.0 17.0 15.5 6.5 -0.5 -4.0 -13.0 ****** DAY 1 7 1 5 ** 18 18 31 28 22 17 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.5 12.0 18.5 27.5 ***** 33.0 35.0 35.5 34.0 25.0 22.0 10.0 ****** DAY 6 13 8 23 ** 14 10 28 3 19 2 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 6.0 21.5 13.0 ***** 4.2 0.0 0.0 0.0 1.6 19.0 18.4 ****** DAY 30 5 23 19 ** 1 ** ** ** 8 16 1 MONTHLY TOTAL PRECIPITATION IN MM. 28.5 21.6 75.1 57.5 ***** 4.2 0.0 0.0 0.0 3.2 32.6 37.4 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 48.1 23.7 0.0 28.1 NO. OF DAYS WITH PRECIPITATION. 5 7 8 7 *** 1 0 0 0 2 5 6 *** NO. OF DAYS PRECIPITATION EQUAL 5 6 8 7 *** 1 0 0 0 2 4 6 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 3 2 *** 0 0 0 0 0 1 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 89 75 66 *** 46 36 40 47 50 68 83 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 72 53 42 *** 26 22 22 28 31 51 79 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 85 83 64 48 *** 29 28 24 32 39 63 87 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 23 1 0 *** 0 0 0 0 0 1 27 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 8 4 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 5 0 0 *** 0 0 0 0 0 0 5 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 14 29 31 5 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 27 8 1 *** 0 0 0 0 4 8 31 *** DATE OF START AND END FREEZING START = 21 OCT. END = 5 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -0.7 4.1 3.9 15.1 18.4 24.5 25.9 21.9 20.0 13.1 8.8 2.9 13.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.2 -2.1 -2.1 7.8 10.4 17.5 19.2 15.3 11.4 5.4 2.5 -1.5 6.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.8 10.3 9.9 22.4 26.4 31.4 32.5 28.3 28.5 20.8 15.1 7.2 19.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.0 12.4 12.0 14.7 16.0 13.9 13.3 13.0 17.1 15.4 12.6 8.7 13.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.16 3.49 3.67 5.29 5.31 6.84 7.94 6.38 4.85 4.46 4.24 3.90 4.96 MEAN OF MIXING RATIO AT 09 GMT. 4.02 3.73 4.27 5.04 5.40 6.48 8.12 6.66 6.06 5.91 5.39 4.61 5.47 MEAN OF MIXING RATIO AT 15 GMT. 3.60 3.55 4.23 5.26 5.03 5.90 7.35 6.10 5.61 5.54 4.98 4.23 5.12 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -7.0 -11.0 2.0 6.0 10.0 13.0 10.5 6.5 1.0 -2.5 -6.5 -14.5 DAY 5 8 11 8 1 12 19 28 24 24 24 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.5 17.5 21.0 30.5 31.0 35.5 36.5 31.0 31.5 30.5 22.5 16.0 36.5 DAY 26 26 22 23 17 22 28 22 7 1 13 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 17.0 15.5 6.0 18.0 8.0 0.0 0.0 0.0 0.0 7.0 13.5 17.5 18.0 DAY 17 2 8 4 12 ** ** ** ** 12 28 5 MONTHLY TOTAL PRECIPITATION IN MM. 74.0 34.3 23.8 31.5 12.1 0.0 0.0 0.0 0.0 7.0 32.5 60.9 276.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.8 15.8 0.0 36.4 NO. OF DAYS WITH PRECIPITATION. 8 5 8 5 4 0 0 0 0 1 4 11 46 NO. OF DAYS PRECIPITATION EQUAL 8 4 7 5 3 0 0 0 0 1 4 11 43 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 2 0 1 0 0 0 0 0 0 1 2 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 76 78 58 49 38 41 44 42 61 69 84 61 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 71 48 54 32 25 21 25 26 24 37 49 69 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 83 60 69 41 28 24 27 30 28 45 60 77 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 6 14 0 0 0 0 0 0 0 0 10 48 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 9 0 0 0 0 0 15 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 4 0 4 0 0 0 0 0 0 0 0 0 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 2 6 23 30 7 7 1 0 0 76 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 26 20 0 0 0 0 0 0 0 9 22 105 DATE OF START AND END FREEZING START = 1 NOV. END = 26 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. 1.1 3.9 2.9 12.0 18.3 21.8 24.5 22.8 19.7 15.7 7.3 0.9 12.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.0 -2.3 -2.6 5.8 11.1 14.9 18.0 16.0 11.7 8.1 0.8 -3.8 6.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.1 7.9 8.4 18.2 25.5 28.6 31.0 29.5 27.7 23.5 13.8 5.7 18.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.1 10.2 11.0 12.5 14.4 13.7 13.0 13.5 16.0 15.4 12.9 9.5 12.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.99 3.53 3.68 5.83 7.02 7.59 10.05 6.76 5.09 5.25 3.93 3.54 5.44 MEAN OF MIXING RATIO AT 09 GMT. 4.16 4.32 4.50 6.51 7.06 8.94 10.38 6.01 6.29 6.21 4.69 4.68 6.15 MEAN OF MIXING RATIO AT 15 GMT. 3.86 4.11 3.76 6.01 6.84 8.26 9.98 6.10 5.50 5.84 4.62 4.14 5.75 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.0 -7.0 -9.0 -3.0 6.0 11.5 14.0 10.0 8.0 1.0 -5.0 -14.0 -14.0 DAY 24 4 17 1 18 12 10 10 12 17 14 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 17.0 17.5 25.0 30.0 34.0 34.5 32.5 33.5 29.5 24.0 10.5 34.5 DAY 18 26 1 17 26 18 26 2 1 5 4 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 19.0 30.0 20.5 11.5 3.0 2.0 0.0 0.0 0.0 10.0 35.0 35.0 DAY 23 11 8 21 11 3 21 ** ** ** 30 31 MONTHLY TOTAL PRECIPITATION IN MM. 15.0 51.2 52.0 59.1 22.0 8.1 2.0 0.0 0.0 0.0 15.0 143.5 367.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 32.1 24.2 0.5 43.1 NO. OF DAYS WITH PRECIPITATION. 5 7 5 8 5 4 1 0 0 0 3 8 46 NO. OF DAYS PRECIPITATION EQUAL 5 7 5 8 5 3 1 0 0 0 3 8 45 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 1 2 1 0 0 0 0 0 1 6 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 84 86 72 61 50 52 43 43 59 71 85 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 66 65 66 51 34 34 36 22 26 32 45 76 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 76 69 55 40 41 40 28 29 41 61 84 53 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 14 6 13 0 0 0 0 0 0 0 7 14 54 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 7 4 0 0 0 0 14 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 1 1 0 0 0 0 0 0 0 0 2 5 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 9 26 14 5 0 0 0 55 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 15 22 1 0 0 0 0 0 0 19 26 113 DATE OF START AND END FREEZING START = 12 NOV. END = 1 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. 2.4 4.1 7.8 12.5 18.7 21.5 24.2 24.7 20.3 9.8 10.1 4.8 13.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.7 -2.0 2.5 5.6 11.3 13.8 17.2 17.8 12.2 2.7 3.0 -1.8 6.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.9 10.2 13.1 19.3 26.1 29.3 31.3 31.7 28.4 16.9 16.9 11.4 20.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.6 12.2 10.6 13.7 14.8 15.5 14.1 13.9 16.2 14.2 13.9 13.2 13.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.95 3.77 4.83 5.77 7.02 6.40 8.17 9.05 7.92 4.96 4.32 3.35 5.71 MEAN OF MIXING RATIO AT 09 GMT. 4.11 4.35 5.23 6.26 7.66 7.25 8.64 12.21 12.52 7.05 4.69 3.86 6.99 MEAN OF MIXING RATIO AT 15 GMT. 3.68 4.10 5.12 5.66 7.03 6.87 7.90 10.14 10.28 6.14 4.60 3.74 6.27 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.0 -10.5 -3.0 -1.5 3.0 8.5 10.5 12.5 9.0 -4.0 -1.5 -9.6 -10.5 DAY 23 12 22 2 8 1 5 31 10 26 27 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 18.5 19.5 27.0 31.5 34.0 38.0 34.0 34.5 28.5 24.0 16.5 38.0 DAY 26 26 3 17 24 5 25 2 6 6 3 24 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.5 34.0 19.0 18.5 15.0 0.0 5.0 0.0 3.0 24.0 5.5 17.4 34.0 DAY 12 11 29 5 19 ** 23 ** 20 9 27 29 MONTHLY TOTAL PRECIPITATION IN MM. 11.5 51.1 93.5 43.0 36.0 0.0 17.0 0.0 3.0 45.0 11.0 42.2 353.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.2 22.4 5.7 27.8 NO. OF DAYS WITH PRECIPITATION. 1 5 15 6 5 0 6 0 1 4 3 4 50 NO. OF DAYS PRECIPITATION EQUAL 1 5 15 6 5 0 6 0 1 4 3 4 50 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 4 2 1 0 0 0 0 2 0 2 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 78 77 72 59 48 47 52 66 79 73 72 67 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 57 55 46 37 27 29 39 49 54 41 45 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 68 65 50 40 32 33 41 53 63 47 59 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 9 0 0 0 0 0 0 0 1 0 7 35 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 4 0 0 0 0 7 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 8 12 21 27 9 0 0 0 77 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 19 9 6 0 0 0 0 0 13 8 24 105 DATE OF START AND END FREEZING START = 12 OCT. END = 8 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. 0.2 1.9 6.6 13.0 17.9 24.2 25.7 23.3 20.2 14.3 9.8 4.5 13.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.1 -3.9 0.7 6.6 10.5 16.8 19.4 16.0 11.9 6.6 3.3 -1.0 6.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.4 7.8 12.6 19.4 25.3 31.6 32.1 30.5 28.5 22.0 16.3 10.0 20.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.5 11.7 11.9 12.8 14.8 14.8 12.7 14.5 16.6 15.4 13.0 11.0 13.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.14 3.26 4.16 6.21 7.52 8.39 8.75 8.15 5.72 4.93 3.80 3.62 5.64 MEAN OF MIXING RATIO AT 09 GMT. 4.12 4.25 4.59 7.22 7.86 8.39 10.45 9.44 7.83 7.20 4.81 4.46 6.72 MEAN OF MIXING RATIO AT 15 GMT. 3.77 4.11 4.69 6.98 7.76 7.59 8.99 8.65 6.64 5.96 4.95 4.25 6.20 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -15.5 -3.5 -2.0 5.0 11.4 14.0 12.0 6.5 3.0 -5.2 -10.5 -15.5 DAY 22 7 7 3 6 2 25 16 23 3 29 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.8 17.0 21.0 27.5 31.6 37.5 36.0 35.0 35.4 25.5 22.0 16.0 37.5 DAY 11 23 31 24 29 17 12 12 6 10 14 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.0 25.5 35.0 16.0 10.0 0.0 6.0 0.0 7.0 1.5 20.0 11.5 35.0 DAY 19 3 5 29 20 ** 29 ** 1 16 15 18 MONTHLY TOTAL PRECIPITATION IN MM. 55.2 76.1 84.0 110.0 18.0 0.0 9.0 0.0 7.0 1.5 20.0 30.5 411.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 52.3 31.1 3.9 12.6 NO. OF DAYS WITH PRECIPITATION. 9 6 8 12 3 0 2 0 1 1 1 6 49 NO. OF DAYS PRECIPITATION EQUAL 8 6 8 12 3 0 2 0 1 1 1 6 48 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 5 3 6 1 0 0 0 0 0 1 1 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 79 72 73 68 52 45 50 47 61 60 72 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 63 50 51 38 28 34 34 32 41 39 55 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 84 76 62 59 48 31 36 37 34 48 53 67 53 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 13 0 0 0 0 0 0 0 0 1 8 44 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 11 0 0 0 0 0 12 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 1 0 0 0 0 0 0 0 0 0 1 4 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 21 29 20 13 0 0 0 85 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 25 15 6 0 0 0 0 0 0 13 21 108 DATE OF START AND END FREEZING START = 15 NOV. END = 10 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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 -3.3 6.8 13.1 16.7 24.0 26.0 23.3 20.1 15.4 8.0 4.7 12.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -9.4 -10.3 1.3 5.6 9.4 16.6 19.9 15.7 11.3 6.9 1.8 0.2 5.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.6 3.7 12.3 20.6 24.0 31.4 32.1 31.0 29.0 23.9 14.1 9.2 19.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.0 14.0 11.0 15.0 14.6 14.8 12.2 15.3 17.7 17.0 12.3 9.0 13.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.55 2.29 4.58 5.11 6.67 7.44 8.61 7.17 5.89 5.12 4.43 3.89 5.31 MEAN OF MIXING RATIO AT 09 GMT. 3.93 3.81 5.07 5.97 7.02 7.70 9.35 8.06 8.16 7.60 5.00 4.31 6.33 MEAN OF MIXING RATIO AT 15 GMT. 2.99 3.21 4.76 5.12 6.35 7.55 7.72 7.17 7.18 6.85 4.79 4.35 5.67 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.0 -15.5 -4.0 -3.0 -1.0 12.5 14.0 9.5 5.5 1.5 -2.0 -2.5 -18.0 DAY 5 4 1 1 3 2 28 21 23 25 11 10 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 10.0 20.0 26.0 33.0 36.0 38.0 39.5 35.0 29.5 19.0 18.0 39.5 DAY 23 28 26 19 28 24 9 11 14 8 29 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 10.8 15.0 16.0 16.0 0.0 0.0 5.0 0.0 0.0 17.0 20.0 20.0 DAY 24 23 29 30 29 ** ** 21 ** ** 1 15 MONTHLY TOTAL PRECIPITATION IN MM. 66.1 38.2 46.5 16.0 38.0 0.0 0.0 5.0 0.0 0.0 44.0 71.0 324.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 46.4 16.6 1.5 35.4 NO. OF DAYS WITH PRECIPITATION. 9 5 5 1 5 0 0 1 0 0 3 8 37 NO. OF DAYS PRECIPITATION EQUAL 9 5 5 1 5 0 0 1 0 0 3 8 37 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 2 1 2 0 0 0 0 0 3 4 17 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 86 77 62 59 44 43 46 52 61 76 74 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 84 76 55 38 36 26 29 28 31 40 47 56 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 89 87 65 41 44 34 30 29 36 48 57 71 53 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 26 1 0 0 0 0 0 0 0 0 0 57 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 13 0 0 0 0 0 15 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 8 4 0 0 0 0 0 0 0 0 0 0 12 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 7 25 25 22 18 0 0 0 97 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 12 4 3 0 0 0 0 0 7 18 102 DATE OF START AND END FREEZING START = 9 NOV. END = 4 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -0.7 1.0 5.8 11.3 19.3 23.9 23.6 ***** 21.1 ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -5.3 -3.8 -0.8 4.1 11.1 16.3 18.4 17.7 13.0 4.9 2.5 -8.0 5.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.9 5.8 12.6 18.5 27.5 31.6 29.4 ***** 29.3 ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.2 9.6 13.4 14.4 16.4 15.3 11.0 ***** 16.3 ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.18 3.47 3.54 5.22 7.08 7.12 8.91 7.50 5.78 4.23 3.55 2.71 5.19 MEAN OF MIXING RATIO AT 09 GMT. 4.15 4.40 3.99 5.16 7.11 7.25 9.68 7.25 5.95 4.52 4.45 4.02 5.66 MEAN OF MIXING RATIO AT 15 GMT. 3.62 3.91 4.05 5.48 6.85 6.86 9.19 6.82 6.07 5.47 3.83 3.49 5.47 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.5 -7.5 -7.0 -1.0 6.5 11.0 12.5 12.5 6.0 -4.0 -3.0 -21.0 -21.0 DAY 27 9 21 2 16 1 14 31 26 19 18 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.5 15.0 18.5 29.5 31.5 37.0 33.4 ***** 34.0 ***** ***** ***** ****** DAY 23 20 12 29 19 29 16 ** 13 ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 24.0 3.0 8.5 11.0 0.0 0.5 0.0 0.0 2.5 8.5 9.5 24.0 DAY 25 16 15 8 1 ** 6 ** ** 28 14 25 MONTHLY TOTAL PRECIPITATION IN MM. 45.0 55.0 6.5 29.0 14.5 0.0 0.5 0.0 0.0 6.0 8.5 35.0 200.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.3 21.8 0.3 24.8 NO. OF DAYS WITH PRECIPITATION. 10 8 3 10 4 0 1 0 0 3 1 8 48 NO. OF DAYS PRECIPITATION EQUAL 10 8 3 8 2 0 0 0 0 3 1 8 43 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 0 0 1 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 90 71 71 60 43 48 41 41 52 64 74 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 80 73 46 39 31 23 33 23 22 28 35 62 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 83 77 58 53 40 29 40 29 30 45 44 72 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 14 7 0 0 0 0 0 0 1 0 19 62 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 6 3 0 0 0 0 10 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 4 0 0 0 0 0 0 *** 0 *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 6 23 8 *** 12 *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 *** 0 *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 *** 0 *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 26 16 5 0 0 0 0 0 5 6 24 112 DATE OF START AND END FREEZING START = 16 OCT. END = 11 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -1.7 -0.7 4.8 11.7 14.5 20.8 23.7 22.3 18.8 12.0 6.8 2.2 11.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.1 -6.7 -0.1 4.8 7.1 13.6 16.4 14.8 10.7 4.8 0.5 -3.1 4.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.7 5.2 9.7 18.6 21.9 27.9 31.0 29.9 26.9 19.3 13.2 7.6 18.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.8 11.9 9.8 13.8 14.8 14.3 14.6 15.1 16.2 14.5 12.7 10.7 13.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.11 3.16 4.91 6.04 6.25 7.95 8.13 6.28 5.98 5.07 3.91 3.55 5.36 MEAN OF MIXING RATIO AT 09 GMT. 4.49 4.21 5.60 7.23 6.92 7.98 8.45 5.97 6.88 5.50 4.43 4.15 5.98 MEAN OF MIXING RATIO AT 15 GMT. 3.91 3.92 5.37 6.68 7.10 7.88 7.17 5.81 6.52 5.45 4.12 3.96 5.66 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -16.5 -12.5 -0.5 3.5 10.5 13.0 5.5 2.5 -0.5 -6.0 -9.0 -16.5 DAY 1 14 13 14 24 11 14 23 29 14 29 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.5 14.0 17.5 26.0 31.5 32.5 36.0 34.0 35.0 23.0 22.5 14.0 36.0 DAY 31 27 31 25 31 28 8 4 9 27 4 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 15.0 16.0 27.0 8.5 15.0 1.5 1.5 0.0 1.5 6.0 3.5 23.0 27.0 DAY 15 2 7 7 11 3 15 ** 16 17 7 15 MONTHLY TOTAL PRECIPITATION IN MM. 58.0 57.0 131.5 36.0 47.0 1.5 1.5 0.0 1.5 8.5 5.0 79.5 427.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 57.7 19.8 0.7 21.8 NO. OF DAYS WITH PRECIPITATION. 8 8 16 10 8 1 1 0 1 2 2 6 63 NO. OF DAYS PRECIPITATION EQUAL 8 8 16 10 7 1 1 0 1 2 2 6 62 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 6 0 1 0 0 0 0 0 0 4 16 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 91 89 87 78 66 55 51 42 55 66 71 77 69 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 79 73 70 52 41 31 29 21 29 37 44 59 47 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 88 84 80 61 56 43 34 27 40 50 55 73 58 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 21 6 0 0 0 0 0 0 0 4 15 71 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 5 0 0 0 0 0 0 0 0 0 0 5 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 9 21 16 8 0 0 0 56 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 18 3 0 0 0 0 0 2 15 23 120 DATE OF START AND END FREEZING START = 14 OCT. END = 16 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -2.0 0.8 2.0 10.3 12.8 20.9 ***** ***** ***** ***** 9.5 3.4 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -7.0 -4.2 -2.0 5.1 7.4 14.4 ***** ***** ***** ***** 3.2 -0.4 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.1 5.7 6.3 15.6 18.1 27.5 ***** ***** ***** ***** 15.5 7.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.1 9.9 8.2 10.5 10.7 13.1 ***** ***** ***** ***** 12.3 7.4 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.19 3.14 3.68 5.37 6.73 9.10 ***** ***** ***** ***** 4.76 4.23 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.01 4.00 4.43 5.58 7.28 9.40 ***** ***** ***** ***** 7.35 4.87 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.50 3.78 4.33 6.00 7.38 8.82 ***** ***** ***** ***** 5.48 4.50 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.0 -12.0 -8.5 0.0 -1.0 10.5 ***** ***** ***** ***** -5.5 -9.4 ****** DAY 29 17 1 4 6 2 ** ** ** ** 28 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 14.0 12.0 22.0 26.0 33.0 ***** ***** ***** ***** 21.0 11.0 ****** DAY 21 23 17 13 30 19 ** ** ** ** 13 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 21.0 18.0 30.0 20.0 25.0 6.0 ***** ***** ***** ***** 7.0 18.0 ****** DAY 17 11 31 23 13 15 ** ** ** ** 27 4 MONTHLY TOTAL PRECIPITATION IN MM. 86.5 49.5 109.0 111.0 63.5 24.0 ***** ***** ***** ***** 7.0 77.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 46.4 37.6 ***** 16.0 NO. OF DAYS WITH PRECIPITATION. 9 5 10 11 7 6 *** *** *** *** 1 10 *** NO. OF DAYS PRECIPITATION EQUAL 9 5 10 11 7 6 *** *** *** *** 1 10 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 3 5 6 3 0 *** *** *** *** 0 3 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 90 80 82 74 77 66 *** *** *** *** 66 86 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 80 66 69 49 53 37 *** *** *** *** 56 70 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 87 81 81 64 68 51 *** *** *** *** 59 80 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 17 12 0 0 0 *** *** *** *** 2 1 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 *** *** *** *** 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 5 2 2 0 0 0 *** *** *** *** 0 1 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 *** *** *** *** 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** *** *** *** 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** *** *** *** 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 26 25 1 1 0 *** *** *** *** 8 21 *** DATE OF START AND END FREEZING START = 4 NOV. END = 6 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -3.6 1.7 3.3 12.2 15.9 20.8 23.0 21.5 19.8 ***** 6.3 3.0 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -8.9 -2.4 -1.2 6.1 10.0 14.3 18.4 15.4 12.3 ***** 1.6 -2.0 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.6 5.7 7.8 18.3 21.7 27.3 27.6 27.6 27.3 ***** 11.0 7.9 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.5 8.1 9.0 12.2 11.7 13.0 9.2 12.2 15.0 ***** 9.4 9.9 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.65 3.88 4.23 5.91 7.75 8.86 7.59 7.51 7.13 ***** 4.14 3.52 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.82 4.38 4.95 5.78 7.90 8.37 7.18 7.26 7.60 ***** 4.94 4.46 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.23 4.23 4.52 5.79 7.86 8.10 7.16 7.00 7.58 ***** 4.78 4.08 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.0 -11.5 -9.5 0.0 1.5 9.0 14.5 11.0 6.0 ***** -7.0 -11.0 ****** DAY 21 17 16 1 10 1 25 27 18 ** 23 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.5 11.5 15.0 25.0 28.0 33.5 30.0 30.0 32.5 ***** 20.0 13.5 ****** DAY 27 3 11 19 20 19 1 14 4 ** 1 23 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 40.0 12.0 31.0 13.0 3.0 0.5 0.0 0.0 ***** 29.0 10.0 ****** DAY 8 5 7 13 29 4 28 ** ** ** 29 6 MONTHLY TOTAL PRECIPITATION IN MM. 72.0 134.5 67.5 73.0 59.5 5.5 0.5 0.0 0.0 ***** 61.5 10.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 56.6 28.5 0.1 14.8 NO. OF DAYS WITH PRECIPITATION. 8 10 9 10 12 3 1 0 0 *** 9 1 *** NO. OF DAYS PRECIPITATION EQUAL 8 10 9 10 11 3 0 0 0 *** 8 1 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 5 3 2 1 0 0 0 0 *** 1 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 87 85 72 70 61 44 48 53 *** 71 82 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 80 71 71 42 48 34 28 28 31 *** 57 62 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 88 78 76 55 59 46 34 35 43 *** 68 73 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 11 11 0 0 0 0 0 0 *** 5 5 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 4 0 1 *** 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 13 2 2 0 0 0 0 0 0 *** 1 2 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 7 4 2 *** 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 *** 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 *** 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 22 21 1 0 0 0 0 0 *** 14 26 *** DATE OF START AND END FREEZING START = 6 NOV. END = 1 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. 0.8 0.7 7.4 11.8 17.5 22.1 23.9 24.2 15.4 11.2 9.7 0.6 12.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.1 -3.6 1.9 5.7 11.0 16.3 17.6 18.7 8.4 5.1 4.6 -3.6 6.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.6 5.1 12.9 17.9 24.0 27.9 30.1 29.7 22.4 17.2 14.8 4.8 17.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.7 8.7 11.0 12.2 13.0 11.6 12.5 11.0 14.0 12.1 10.2 8.4 11.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.32 3.37 4.86 5.61 6.81 7.10 7.64 7.21 4.88 5.34 5.06 3.47 5.39 MEAN OF MIXING RATIO AT 09 GMT. 4.00 3.90 4.88 5.95 7.00 7.24 7.31 6.79 5.50 5.65 6.32 4.89 5.79 MEAN OF MIXING RATIO AT 15 GMT. 3.69 3.48 5.12 5.42 6.68 7.09 7.13 6.78 4.45 5.76 5.73 4.02 5.45 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.0 -10.5 -2.0 -5.0 4.0 9.5 12.0 11.0 3.0 -1.0 -1.5 -14.0 -14.0 DAY 22 4 4 5 8 6 4 11 27 26 11 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 12.5 21.0 29.5 29.0 33.0 33.5 35.0 27.5 23.0 20.0 13.0 35.0 DAY 5 27 22 26 27 16 17 2 2 22 5 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.0 6.0 31.0 11.0 5.0 0.0 0.0 0.5 0.0 17.5 36.0 18.0 36.0 DAY 6 9 13 19 7 ** ** 26 ** 3 18 1 MONTHLY TOTAL PRECIPITATION IN MM. 65.0 20.0 84.5 29.5 11.0 0.0 0.0 0.5 0.0 29.0 65.0 38.5 343.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 49.4 11.8 0.1 38.6 NO. OF DAYS WITH PRECIPITATION. 9 5 9 5 3 0 0 1 0 5 5 4 46 NO. OF DAYS PRECIPITATION EQUAL 9 5 9 5 3 0 0 0 0 5 5 4 45 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 3 1 0 0 0 0 0 1 2 2 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 86 80 71 59 43 42 41 46 66 71 86 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 66 66 50 44 35 28 26 24 28 43 54 82 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 73 64 49 44 36 32 29 31 57 66 83 53 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 15 0 2 0 0 0 0 0 0 0 15 50 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 4 11 0 0 0 0 17 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 4 0 0 0 0 0 0 0 0 0 6 10 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 21 16 0 0 0 0 43 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 26 11 5 0 0 0 0 0 2 5 22 99 DATE OF START AND END FREEZING START = 26 OCT. END = 9 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. 2.4 2.4 5.1 12.2 16.0 21.2 25.4 23.8 18.4 ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -2.8 -2.0 0.2 6.6 9.9 15.0 19.7 17.2 11.2 ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.5 6.9 10.5 17.3 22.2 27.3 30.9 30.3 25.5 ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.3 8.9 10.3 10.7 12.3 12.3 11.2 13.1 14.3 ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.64 3.68 4.05 6.06 5.96 6.20 8.27 7.74 6.08 ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 4.14 4.07 3.92 5.66 5.68 6.53 9.05 6.80 6.21 ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 4.14 3.98 4.13 5.79 6.68 6.45 7.84 7.57 6.05 ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -6.0 -9.0 -6.5 1.5 5.0 9.0 15.5 12.5 6.0 ***** ***** ***** ****** DAY 10 27 5 9 29 2 1 17 29 ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.0 13.5 17.5 26.0 28.5 34.0 35.5 34.5 30.5 ***** ***** ***** ****** DAY 31 2 25 4 6 30 13 19 20 ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 19.5 26.5 10.0 5.0 0.0 0.0 0.0 11.5 ***** ***** ***** ****** DAY 18 7 18 16 8 ** ** ** 22 ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 12.9 75.5 58.5 67.5 8.0 0.0 0.0 0.0 11.5 ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 62.8 32.3 4.9 ***** NO. OF DAYS WITH PRECIPITATION. 3 8 6 16 3 0 0 0 1 *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL 2 7 6 15 3 0 0 0 1 *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 4 1 2 0 0 0 0 1 *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 90 82 72 74 54 46 41 43 53 *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 57 46 45 30 27 29 22 27 *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 70 57 56 46 34 30 31 37 *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 13 7 6 0 0 0 0 0 0 *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 13 3 0 *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 24 19 2 *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 19 16 0 0 0 0 0 0 *** *** *** *** DATE OF START AND END FREEZING START = 1 JAN. END = 30 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -1.0 1.9 4.1 11.0 16.3 21.4 22.7 22.2 20.1 12.6 5.5 3.9 11.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.5 -2.3 0.4 5.7 10.6 16.2 18.0 15.9 11.9 5.6 -0.9 -1.0 6.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.5 6.0 7.7 15.9 21.8 26.6 27.5 28.6 28.2 19.6 11.9 8.9 17.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.0 8.3 7.3 10.2 11.2 10.4 9.5 12.7 16.3 14.0 12.8 9.9 11.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.05 3.74 4.48 5.97 6.55 7.21 7.49 6.92 6.60 5.36 3.67 3.88 5.41 MEAN OF MIXING RATIO AT 09 GMT. 4.74 4.53 5.34 5.55 6.74 7.54 7.96 8.16 7.95 6.78 4.93 3.93 6.18 MEAN OF MIXING RATIO AT 15 GMT. 3.86 4.50 4.74 5.64 5.74 7.26 7.88 6.84 7.28 5.82 4.27 3.82 5.64 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -10.0 -4.0 -3.5 6.5 9.5 14.5 8.5 7.0 -4.0 -8.5 -9.5 -12.5 DAY 16 7 21 5 2 19 2 30 26 3 13 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 11.5 15.5 24.0 29.5 33.0 30.0 33.5 34.0 25.0 19.0 15.0 34.0 DAY 6 18 25 22 18 2 2 27 12 11 7 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 20.5 38.0 20.0 39.5 2.0 0.0 0.0 0.0 24.5 24.0 16.0 39.5 DAY 20 3 3 28 21 28 ** ** ** 17 12 15 MONTHLY TOTAL PRECIPITATION IN MM. 32.0 70.0 170.5 70.0 52.5 2.0 0.0 0.0 0.0 35.5 24.0 23.0 479.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 56.8 26.0 0.0 17.2 NO. OF DAYS WITH PRECIPITATION. 4 7 14 8 4 1 0 0 0 3 1 3 45 NO. OF DAYS PRECIPITATION EQUAL 4 7 14 8 4 1 0 0 0 3 1 3 45 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 3 6 2 1 0 0 0 0 1 1 1 16 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 87 90 77 57 46 43 45 52 66 73 83 67 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 84 70 72 46 36 31 30 30 30 43 51 49 48 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 89 82 73 59 41 37 37 32 36 51 63 68 56 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 11 1 0 0 0 0 0 0 1 6 8 45 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 4 2 0 0 0 0 6 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 5 2 1 0 0 0 0 0 0 0 2 0 10 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 2 15 12 0 0 0 35 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 22 14 3 0 0 0 0 0 2 20 18 105 DATE OF START AND END FREEZING START = 3 OCT. END = 7 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.5 1.0 4.0 11.8 15.7 21.5 25.3 23.5 19.0 14.5 6.4 1.8 12.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.5 -4.9 -0.8 6.0 9.9 15.4 20.4 17.1 11.7 7.9 1.8 -1.3 6.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.3 6.7 8.9 16.9 21.3 27.6 30.1 29.7 26.4 21.0 11.0 5.0 17.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.8 11.6 9.7 10.9 11.4 12.2 9.7 12.6 14.7 13.1 9.2 6.3 10.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.46 3.27 3.71 4.73 6.49 8.87 7.71 6.56 5.54 5.41 4.71 4.01 5.37 MEAN OF MIXING RATIO AT 09 GMT. 3.69 3.72 4.09 4.68 5.98 9.20 6.93 7.29 6.96 6.02 4.83 4.32 5.64 MEAN OF MIXING RATIO AT 15 GMT. 3.71 3.60 3.74 4.80 6.81 7.64 7.51 6.18 6.08 5.76 4.79 4.18 5.40 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -16.0 -8.5 -0.5 4.5 9.0 18.0 10.5 8.0 4.5 -3.5 -7.0 -16.0 DAY 30 2 20 12 8 4 28 30 11 16 30 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 15.5 18.5 24.0 28.0 33.0 32.5 34.0 33.0 27.5 18.0 10.5 34.0 DAY 1 22 24 29 23 16 13 14 1 2 12 7 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.5 12.0 24.5 9.0 13.5 28.0 0.0 0.0 0.0 8.0 23.5 11.5 28.0 DAY 17 1 24 18 5 18 ** ** ** 24 1 11 MONTHLY TOTAL PRECIPITATION IN MM. 29.0 19.5 99.5 56.0 34.0 88.0 0.0 0.0 0.0 18.0 36.0 48.0 428.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 34.6 41.6 0.0 23.8 NO. OF DAYS WITH PRECIPITATION. 4 4 11 10 6 7 0 0 0 4 5 11 62 NO. OF DAYS PRECIPITATION EQUAL 4 4 10 9 6 7 0 0 0 4 5 11 60 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 4 0 1 4 0 0 0 0 1 1 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 91 87 76 61 56 57 38 36 41 55 80 87 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 58 59 53 37 33 36 23 25 28 35 52 71 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 77 74 62 45 47 40 30 26 34 46 65 79 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 14 17 8 0 0 0 0 0 0 0 0 5 44 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 12 5 0 0 0 0 18 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 3 0 0 0 0 0 0 0 0 0 2 6 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 16 17 4 0 0 0 44 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 25 18 4 0 0 0 0 0 0 10 23 107 DATE OF START AND END FREEZING START = 8 NOV. END = 14 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. -0.6 0.1 5.1 13.4 15.9 20.8 23.7 22.6 19.5 14.7 9.9 7.2 12.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.8 -3.7 -0.2 6.9 9.7 14.5 17.4 16.1 12.0 6.1 3.2 0.6 6.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.7 3.8 10.6 20.0 22.1 26.9 30.0 29.1 26.8 22.8 16.8 13.9 18.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 6.5 7.5 10.8 13.1 12.4 12.4 12.6 13.0 14.8 16.7 13.6 13.3 12.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.62 3.42 4.22 5.53 6.74 7.20 8.85 8.68 7.18 4.93 4.30 3.97 5.72 MEAN OF MIXING RATIO AT 09 GMT. 3.63 3.84 4.81 6.49 6.76 7.15 8.68 8.85 8.70 8.70 6.51 5.36 6.62 MEAN OF MIXING RATIO AT 15 GMT. 3.78 3.86 4.65 6.24 7.89 7.64 9.34 9.10 8.36 6.12 4.72 4.41 6.34 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.5 -8.5 -8.0 0.5 1.5 10.5 8.0 12.0 5.0 -1.5 0.0 -4.0 -9.5 DAY 12 28 4 8 4 2 26 27 13 10 26 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.5 11.5 20.0 28.0 27.5 32.0 37.5 33.0 32.5 30.0 23.5 22.5 37.5 DAY 13 25 30 18 12 28 6 18 2 2 1 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.0 50.5 20.5 15.0 11.0 0.0 0.0 0.0 0.5 3.0 0.0 12.0 50.5 DAY 14 9 26 23 12 ** ** ** 11 24 ** 31 MONTHLY TOTAL PRECIPITATION IN MM. 106.5 130.5 49.5 34.0 28.0 0.0 0.0 0.0 0.5 3.0 0.0 34.0 386.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 74.2 16.1 0.1 9.6 NO. OF DAYS WITH PRECIPITATION. 10 9 7 4 6 0 0 0 1 1 0 4 42 NO. OF DAYS PRECIPITATION EQUAL 10 9 7 4 5 0 0 0 0 1 0 4 40 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 5 1 2 1 0 0 0 0 0 0 2 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 91 86 75 59 57 45 49 51 49 53 61 72 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 68 56 40 38 30 30 32 36 44 47 48 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 87 82 62 52 54 37 42 42 44 46 46 57 54 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 13 16 7 0 0 0 0 0 0 0 0 1 37 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 4 0 0 0 0 0 4 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 6 7 1 0 0 0 0 0 0 0 0 0 14 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 15 11 6 1 0 0 35 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 25 13 0 0 0 0 0 0 3 2 13 85 DATE OF START AND END FREEZING START = 10 OCT. END = 22 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 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. 0.9 4.4 5.2 11.5 16.7 21.9 22.2 22.9 18.7 14.3 4.1 4.4 12.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.9 -0.7 0.4 4.9 9.3 14.7 15.9 16.2 10.9 6.4 -1.1 -1.3 6.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.7 9.6 10.0 18.1 24.0 29.1 28.5 29.6 26.5 22.2 9.3 10.0 18.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.6 10.3 9.6 13.2 14.7 14.4 12.6 13.4 15.6 15.8 10.4 11.3 12.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.50 4.40 4.49 5.23 6.68 7.35 8.22 7.01 6.14 4.97 4.14 3.58 5.48 MEAN OF MIXING RATIO AT 09 GMT. 4.55 5.04 4.76 5.31 7.00 7.42 8.86 7.63 7.34 7.14 4.93 3.99 6.16 MEAN OF MIXING RATIO AT 15 GMT. 4.16 4.47 4.60 5.00 6.28 7.29 9.16 7.54 6.64 5.04 4.47 3.79 5.70 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -5.0 -6.5 0.0 4.0 9.0 9.5 12.5 4.0 1.5 -6.5 -7.5 -12.5 DAY 1 2 19 11 5 18 14 19 29 28 28 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 16.5 17.5 23.5 30.5 34.5 34.5 33.4 32.5 28.4 14.5 14.5 34.5 DAY 16 27 27 29 19 28 5 29 13 12 19 30 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 13.0 16.0 5.0 7.5 0.0 0.0 0.0 0.0 0.0 13.0 17.0 17.0 DAY 16 4 3 21 10 ** ** ** ** ** 28 4 MONTHLY TOTAL PRECIPITATION IN MM. 21.0 41.5 57.5 13.5 8.5 0.0 0.0 0.0 0.0 0.0 30.0 23.0 195.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 61.5 11.3 0.0 27.2 NO. OF DAYS WITH PRECIPITATION. 5 5 8 5 2 0 0 0 0 0 4 2 31 NO. OF DAYS PRECIPITATION EQUAL 5 5 8 5 2 0 0 0 0 0 4 2 31 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 3 3 0 0 0 0 0 0 0 1 1 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 87 81 65 61 47 50 39 50 58 80 65 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 72 63 60 38 37 27 35 26 33 38 62 47 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 70 68 49 44 34 44 34 39 37 66 59 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 12 2 5 0 0 0 0 0 0 0 4 8 31 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 2 0 0 0 0 0 3 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 2 0 0 0 0 0 0 0 0 0 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 12 12 15 5 0 0 0 45 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 20 14 2 0 0 0 0 0 0 21 19 103 DATE OF START AND END FREEZING START = 3 NOV. END = 12 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.0 1.3 5.1 15.1 18.7 19.2 19.5 ***** 17.9 11.9 2.6 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -4.1 -4.4 -1.3 6.1 8.7 8.1 10.1 10.0 9.0 3.8 -2.8 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.0 7.0 11.6 24.1 28.7 30.3 29.0 ***** 26.9 20.1 8.1 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.1 11.4 12.9 18.0 20.0 22.2 18.9 ***** 17.9 16.3 10.9 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.39 3.40 3.89 5.52 8.09 6.64 6.59 7.35 5.92 4.75 3.07 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 4.39 4.06 4.49 6.05 9.76 7.47 5.89 6.21 6.22 6.54 4.98 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 3.96 3.94 4.15 6.45 8.20 5.76 5.28 5.42 5.17 5.75 3.82 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -11.5 -12.5 0.5 4.5 2.5 4.0 5.5 2.5 1.5 -10.0 ***** ****** DAY 11 9 16 3 23 19 31 31 24 10 12 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.5 35.0 20.0 29.5 33.5 34.0 32.0 ***** 29.5 27.0 20.5 ***** ****** DAY 1 14 25 23 27 1 9 ** 7 28 1 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 15.0 7.5 0.0 0.0 9.0 0.0 0.0 5.0 7.0 11.0 ***** ****** DAY 29 14 21 ** ** 13 ** ** 29 16 29 ** MONTHLY TOTAL PRECIPITATION IN MM. 26.0 42.5 21.5 0.0 0.0 9.0 0.0 0.0 9.0 7.0 24.0 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 64.7 6.5 6.5 22.3 NO. OF DAYS WITH PRECIPITATION. 5 6 4 0 0 1 0 0 2 1 4 *** *** NO. OF DAYS PRECIPITATION EQUAL 5 6 4 0 0 1 0 0 2 1 4 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 0 0 0 0 0 1 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 84 75 51 52 40 39 45 42 55 66 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 67 49 32 39 31 23 23 25 43 68 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 78 57 39 43 27 25 24 27 52 66 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 13 15 10 0 0 0 0 0 0 0 13 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 2 0 0 0 0 0 *** 0 0 1 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 8 22 11 *** 0 0 0 *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 *** 0 0 0 *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 *** 0 0 0 *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 24 27 20 0 0 0 0 0 0 0 23 *** *** DATE OF START AND END FREEZING START = 5 NOV. END = 30 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.6 0.9 5.7 13.5 16.0 20.4 22.0 22.1 20.5 15.4 7.9 4.4 12.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.5 -6.0 -2.0 2.9 5.9 10.7 13.6 11.6 11.7 6.8 1.4 -0.5 4.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.2 7.9 13.5 24.1 26.0 30.1 30.3 32.6 29.4 24.0 14.5 9.4 20.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.7 13.9 15.5 21.2 20.1 19.4 16.7 21.0 17.7 17.2 13.1 9.9 16.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.42 3.02 3.80 5.09 6.34 9.36 6.59 6.20 7.07 4.46 4.22 4.28 5.24 MEAN OF MIXING RATIO AT 09 GMT. 3.72 4.26 8.27 16.53 14.72 18.55 14.37 16.44 16.95 10.32 5.47 5.34 11.24 MEAN OF MIXING RATIO AT 15 GMT. 3.12 3.82 5.88 10.84 11.02 14.10 9.57 10.84 11.02 5.91 4.60 4.65 7.95 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.5 -12.0 -8.5 1.0 0.0 5.0 7.0 9.5 8.5 1.0 -6.5 -4.5 -13.5 DAY 31 1 11 1 2 2 16 15 21 29 21 4 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.5 15.5 22.0 29.5 34.0 38.5 34.0 39.0 31.6 31.5 19.0 14.0 39.0 DAY 4 28 22 9 16 8 22 23 18 2 7 30 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.0 25.5 18.0 7.5 20.5 3.5 0.0 3.0 0.0 12.5 7.5 21.0 25.5 DAY 20 5 25 19 8 15 ** 13 ** 24 20 15 MONTHLY TOTAL PRECIPITATION IN MM. 8.5 36.5 58.5 7.5 36.0 7.0 0.0 3.0 0.0 12.5 22.0 96.5 288.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 35.9 17.5 1.0 45.5 NO. OF DAYS WITH PRECIPITATION. 3 3 7 1 4 2 0 1 0 1 6 10 38 NO. OF DAYS PRECIPITATION EQUAL 3 3 7 1 4 2 0 1 0 1 6 10 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 2 0 1 0 0 0 0 1 0 5 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 84 73 61 62 62 39 38 45 49 67 82 61 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 57 70 72 59 58 45 45 55 45 46 63 56 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 70 73 70 66 62 40 42 48 39 55 72 59 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 23 9 0 0 0 0 0 0 0 2 1 62 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 8 0 0 0 0 0 0 0 0 0 0 0 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 5 18 17 27 12 2 0 0 81 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 26 0 1 0 0 0 0 0 11 20 117 DATE OF START AND END FREEZING START = 15 NOV. END = 2 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.1 2.4 7.2 11.2 16.5 21.3 22.2 23.6 20.6 17.1 7.9 -0.3 12.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.6 -2.4 0.9 5.7 9.7 14.4 16.6 16.3 12.5 9.3 2.3 -5.3 6.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.8 7.3 13.5 16.7 23.3 28.3 27.9 30.8 28.7 25.0 13.5 4.6 18.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.4 9.7 12.6 11.0 13.6 13.9 11.3 14.5 16.2 15.7 11.2 9.9 12.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.21 3.47 4.26 6.36 8.06 8.25 6.56 5.99 5.65 4.86 4.34 2.84 5.32 MEAN OF MIXING RATIO AT 09 GMT. 4.45 4.33 5.39 8.49 9.49 7.18 6.03 5.99 5.60 5.91 5.30 4.15 6.03 MEAN OF MIXING RATIO AT 15 GMT. 3.69 3.99 4.60 7.77 8.72 6.97 5.75 5.43 5.40 6.52 4.68 3.37 5.57 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -13.0 -9.4 1.0 5.4 10.0 13.2 13.2 6.6 4.8 -5.0 -10.4 -13.0 DAY 15 6 7 1 3 9 27 13 9 22 30 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.6 15.6 22.4 24.6 31.0 36.8 34.8 35.8 32.8 29.4 19.2 10.0 36.8 DAY 2 27 27 17 30 18 18 17 14 15 2 13 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.2 13.6 15.5 17.2 16.4 0.0 5.2 0.6 0.0 6.0 20.0 11.2 20.0 DAY 12 21 21 13 5 ** 20 12 ** 16 15 22 MONTHLY TOTAL PRECIPITATION IN MM. 56.0 47.0 60.2 72.5 31.1 0.0 5.2 0.6 0.0 7.0 32.4 34.8 346.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.1 29.9 1.7 21.4 NO. OF DAYS WITH PRECIPITATION. 6 8 9 15 3 0 1 1 0 2 3 10 58 NO. OF DAYS PRECIPITATION EQUAL 6 7 9 13 3 0 1 0 0 2 3 9 53 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 3 2 2 0 0 0 0 0 1 1 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 79 73 80 74 51 35 33 43 47 70 73 61 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 60 55 61 47 27 23 19 20 26 47 65 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 71 55 77 62 34 27 22 26 44 56 70 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 16 8 4 0 0 0 0 0 0 0 2 24 54 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 2 0 0 0 0 3 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 2 0 0 0 0 0 0 0 0 0 3 7 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 13 9 22 12 0 0 0 58 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 23 12 0 0 0 0 0 0 0 13 28 98 DATE OF START AND END FREEZING START = 16 NOV. END = 24 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.4 0.9 4.1 11.8 12.7 18.9 24.0 22.2 19.1 14.4 8.0 2.3 11.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.9 -4.1 -0.7 4.9 6.5 11.9 17.2 16.9 12.4 5.6 0.2 -4.3 5.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.6 5.9 8.8 18.7 18.9 25.9 30.7 27.5 25.7 23.1 15.8 8.9 18.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.5 10.0 9.5 13.8 12.4 14.0 13.5 10.6 13.3 17.5 15.6 13.2 12.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.75 3.03 3.73 4.99 5.98 7.82 8.76 6.92 6.20 4.70 3.66 2.91 5.12 MEAN OF MIXING RATIO AT 09 GMT. 3.99 4.19 5.46 8.13 9.58 9.42 8.27 7.71 6.33 6.96 5.57 4.07 6.64 MEAN OF MIXING RATIO AT 15 GMT. 3.46 3.51 4.38 6.15 7.77 8.48 7.09 6.98 5.96 6.83 4.71 3.46 5.73 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.6 -10.2 -8.4 -5.2 -1.0 6.4 11.4 13.4 4.2 3.0 -5.0 -13.4 -13.4 DAY 22 18 3 3 3 7 2 13 30 25 16 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.2 12.4 16.4 29.2 27.6 42.4 36.2 30.4 29.4 26.6 20.6 15.2 42.4 DAY 12 10 21 10 8 20 19 14 12 16 3 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 28.4 17.8 15.4 29.8 27.8 8.0 0.0 0.0 0.0 3.6 10.2 9.2 29.8 DAY 29 14 15 15 24 16 ** ** ** 28 15 7 MONTHLY TOTAL PRECIPITATION IN MM. 46.1 57.2 75.5 81.7 97.0 8.0 0.0 0.0 0.0 3.6 23.4 32.0 424.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 42.1 44.0 0.0 13.9 NO. OF DAYS WITH PRECIPITATION. 6 9 13 7 7 1 0 0 0 1 4 7 55 NO. OF DAYS PRECIPITATION EQUAL 4 9 12 7 7 1 0 0 0 1 4 6 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 3 4 4 0 0 0 0 0 1 0 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 74 71 60 64 56 48 38 44 48 64 72 59 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 62 65 52 59 42 27 30 27 34 41 50 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 66 66 55 63 50 30 32 33 48 49 57 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 14 7 1 0 0 0 0 0 0 4 16 64 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 1 0 0 0 0 2 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 3 1 0 0 0 0 0 0 0 0 2 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 19 2 0 0 0 0 25 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 0 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 19 5 1 0 0 0 0 0 14 29 126 DATE OF START AND END FREEZING START = 6 NOV. END = 3 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE PERIOD 1964 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. -0.8 1.1 5.8 12.4 17.1 22.3 24.5 23.5 19.5 13.8 7.5 2.5 12.4 SD OF MEAN DAILY TEMPERATURE IN C. 2.77 2.52 2.02 1.51 1.90 1.53 1.70 1.12 1.08 1.83 2.01 2.16 1.85 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.0 -4.3 0.3 5.9 10.0 14.9 17.8 16.3 11.6 6.4 1.3 -2.9 5.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.4 6.5 11.3 18.8 24.2 29.6 31.2 30.5 27.4 21.2 13.7 7.6 18.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.4 10.7 11.0 12.9 14.3 14.7 13.4 14.1 15.9 14.9 12.5 10.4 12.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.94 3.24 4.10 5.37 6.49 7.15 7.47 6.66 5.61 4.67 3.94 3.35 5.08 MEAN OF MIXING RATIO AT 09 GMT. 3.97 4.15 4.86 6.12 7.23 7.69 7.78 7.33 6.77 5.99 4.94 4.22 5.91 MEAN OF MIXING RATIO AT 15 GMT. 3.51 3.79 4.53 5.76 6.80 7.16 7.25 6.72 6.11 5.49 4.55 3.87 5.46 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -25.0 -22.0 -12.5 -10.5 -1.0 2.5 4.0 4.5 -1.5 -4.0 -12.0 -21.0 -25.0 YEAR - DAY 77-14 72- 1 91-13 81- 3 89- 3 0-19 0-31 67-19 73-30 82-25 69-19 90-29 77-14 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.5 35.0 27.0 30.5 37.5 42.4 39.0 39.5 35.4 33.0 24.0 22.5 42.4 YEAR - DAY 0- 1 0-14 66-14 85-23 74-22 3-20 65-13 89-11 88- 6 80- 2 79- 3 98-10 3-20 24 HOUR MAXIMUM PRECIPITATION IN MM. 34.0 53.0 48.0 50.0 39.5 28.0 21.0 5.0 17.0 24.5 36.0 35.0 53.0 YEAR - DAY 65-11 73-23 73-23 71- 7 96-21 97-18 70-16 89-21 80-23 96-17 94-18 86-31 73-23 MONTHLY TOTAL PRECIPITATION IN MM. 54.1 55.9 69.7 52.3 30.0 7.1 2.0 0.3 2.0 12.4 24.7 43.9 354.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.8 25.3 1.1 22.9 NO. OF DAYS WITH PRECIPITATION. 7 6 9 7 5 1 1 0 0 2 4 6 48 NO. OF DAYS PRECIPITATION EQUAL 7 6 9 7 5 1 0 0 0 2 3 6 46 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 3 2 1 0 0 0 0 0 1 2 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 82 76 66 58 46 41 40 46 56 69 77 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 66 56 44 37 28 26 25 28 36 47 61 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 75 64 51 44 34 30 28 32 44 57 71 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 14 5 0 0 0 0 0 0 0 2 11 52 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 6 2 0 0 0 0 9 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 5 3 1 0 0 0 0 0 0 0 0 2 11 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 3 15 21 19 8 0 0 0 66 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 23 16 2 0 0 0 0 0 2 13 24 108 DATE OF START AND END FREEZING START = 19 SEP. END = 6 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAR-NEYSHABOOR LATITUDE 36 29 N DATA PROCESSING CENTER LONGITUDE 58 42 E ELEVATION 1520 MET. MEAN AND EXTREMES FOR THE PERIOD 1964 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. -0.6 1.4 6.2 13.1 18.1 23.4 25.5 24.6 20.7 14.6 8.0 2.7 13.1 AVERAGE DEW POINT TEMPERATURE. IN C. -4.4 -3.3 -0.7 2.7 5.2 6.2 6.6 5.3 3.6 1.7 -0.8 -3.0 1.6 AVERAGE OF MIXING RATIO IN G/KG 3.47 3.73 4.49 5.75 6.84 7.33 7.50 6.89 6.16 5.38 4.47 3.81 5.48 AVERAGE OF VAPOUR PRESSURE HPA 4.66 5.01 6.05 7.75 9.23 9.92 10.15 9.34 8.34 7.27 6.03 5.13 7.41 AVERAGE OF SATURATION DEFICIT IN HPA 1.72 2.25 4.14 8.39 12.81 20.10 23.60 22.64 17.56 10.53 5.43 2.78 11.00 AVERAGE RELATIVE HUMIDITY IN PERCENT 77 74 65 53 46 36 32 31 35 45 58 70 52 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 87 86 79 69 61 48 42 42 48 59 72 82 65 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 65 62 53 41 35 27 24 23 26 34 45 57 41 NO. OF DAYS PRECIPITATION EQUAL 4 4 5 4 2 1 0 0 0 1 2 3 26 OR MORE THAN 5 MM.