IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 ****** ****** ****** ****** ****** ****** 14.1 13.5 9.0 4.1 1.0 -8.7 ****** 1975 -10.3 -8.5 -8.3 1.6 7.5 11.8 15.1 14.6 10.4 3.1 -3.8 -11.2 1.8 1976 -8.9 -10.8 -4.3 3.4 7.6 11.3 13.4 14.5 9.2 3.6 -2.5 -3.5 2.7 1977 -12.6 -5.2 -1.1 3.3 6.8 11.0 13.9 13.2 9.5 0.5 -2.4 -6.6 2.5 1978 -7.1 -4.2 -1.5 1.8 5.5 8.8 12.9 13.7 8.6 3.8 -6.4 -5.7 2.5 1979 -7.7 -4.7 -4.1 5.6 8.4 13.2 16.0 15.0 14.4 4.9 1.1 -8.6 4.5 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 -9.5 -4.6 -0.3 2.3 5.3 12.0 15.3 13.6 13.2 ****** 2.2 -1.3 ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 -6.4 -5.2 0.4 2.6 5.0 9.2 14.8 11.6 10.1 3.8 0.2 -8.8 3.1 1985 -8.1 -7.1 -7.1 3.7 ****** 11.5 14.4 13.8 10.8 3.5 1.2 -6.8 ****** 1986 -11.1 -4.7 -3.7 2.7 4.2 8.5 14.5 14.4 10.0 5.1 -1.1 -9.4 2.4 1987 -5.8 -3.6 -3.2 0.7 7.8 12.4 15.1 13.2 9.0 2.7 -3.0 -5.3 3.3 1988 -10.2 -8.6 -2.9 1.9 5.5 6.7 8.9 13.8 9.6 5.0 -1.8 -5.0 1.9 1989 -14.9 -14.5 -0.9 4.1 6.9 11.9 17.4 15.2 8.9 5.9 1.3 -4.5 3.1 1990 -10.8 -6.4 -2.7 2.4 6.4 11.0 15.9 14.5 9.8 3.9 -0.0 -5.2 3.2 1991 -8.6 -8.2 -1.0 3.8 5.7 12.2 15.1 16.4 9.9 5.5 -0.4 -6.1 3.7 1992 -11.8 -8.3 ****** 1.7 5.5 10.8 14.9 ****** 9.1 2.7 -0.7 -5.0 ****** 1993 -10.7 -8.1 -4.0 2.6 7.0 10.8 15.1 13.6 9.5 2.9 -2.4 -4.6 2.6 1994 -6.5 -6.4 -0.8 5.2 7.1 11.6 14.5 15.2 9.1 4.8 0.2 -8.1 3.8 1995 -5.1 -3.6 -1.7 2.8 7.7 11.1 15.5 15.5 10.0 2.2 -2.1 -7.8 3.7 1996 -6.8 -4.3 -2.3 2.1 8.7 10.9 16.8 14.9 10.3 4.7 -1.7 -1.1 4.3 1997 -8.2 -10.9 -5.4 2.5 7.2 12.1 15.3 15.8 8.4 4.2 -1.3 -5.5 2.8 1998 -9.7 -9.9 -1.9 3.6 8.3 13.5 16.0 15.9 10.8 4.1 0.9 -1.8 4.2 1999 -4.6 -4.5 -2.3 3.2 6.7 12.7 15.3 17.0 10.0 4.1 -2.4 ****** ****** 2000 -7.9 -8.1 -3.5 5.0 7.9 12.4 18.0 15.8 11.3 4.0 -1.0 -3.5 4.2 2001 -6.6 -4.1 0.8 4.8 7.0 12.1 16.0 15.8 10.8 4.2 -1.5 -2.8 4.7 2002 -8.5 -5.2 -1.2 3.7 6.4 10.5 15.6 14.4 10.5 6.0 -1.0 -8.5 3.6 2003 -6.0 -4.4 -2.0 3.1 6.9 11.3 15.8 16.4 10.7 6.3 -1.6 -4.2 4.4 MEAN -8.6 -6.7 -2.6 3.1 6.8 11.2 15.0 14.7 10.1 4.1 -1.1 -5.8 3.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 ****** ****** ****** ****** ****** ****** 28.3 28.8 23.7 22.2 14.6 7.8 ****** 1975 3.4 4.2 8.3 21.2 21.2 28.8 33.1 31.2 26.3 18.2 11.1 2.1 17.4 1976 3.6 1.4 5.7 14.7 19.2 26.7 29.7 33.5 26.2 19.6 12.8 8.2 16.8 1977 -2.3 7.6 12.1 16.5 20.5 27.9 29.9 31.7 28.1 17.3 12.2 4.2 17.1 1978 3.7 7.0 13.0 16.2 21.2 24.8 32.0 31.8 29.1 22.7 7.8 6.5 18.0 1979 5.0 ****** ****** ****** 18.9 24.5 31.4 31.9 30.9 21.5 16.0 8.5 ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 5.5 7.6 12.0 15.1 19.8 23.6 32.3 30.3 29.0 ****** 13.4 8.0 ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 3.8 4.8 10.4 16.0 16.8 26.9 32.3 29.2 26.9 18.2 8.7 -1.3 16.1 1985 0.7 1.8 4.3 16.3 ****** 28.7 30.3 30.2 27.7 15.9 11.5 1.2 ****** 1986 2.2 5.0 7.4 15.9 20.3 25.5 32.0 30.8 28.5 18.7 8.2 2.3 16.4 1987 7.0 6.7 7.3 15.4 25.5 29.5 31.8 30.1 25.8 13.4 10.3 3.8 17.2 1988 -0.6 1.3 9.6 15.0 21.9 26.2 29.3 26.3 25.3 18.5 9.6 4.5 15.6 1989 -4.3 -3.4 8.5 19.7 22.7 28.5 32.7 31.0 25.8 19.1 11.2 5.7 16.4 1990 -0.4 2.5 8.0 14.0 21.7 28.6 31.4 30.3 28.4 19.1 14.1 5.3 16.9 1991 1.5 2.9 8.1 17.1 20.3 27.2 31.4 31.6 27.1 19.7 11.3 1.5 16.7 1992 -1.4 1.4 ****** 13.3 16.4 24.9 30.5 ****** 25.0 19.4 10.0 3.2 ****** 1993 -1.4 1.3 6.3 14.2 19.4 25.7 30.1 29.5 27.5 18.7 4.9 1.8 14.8 1994 1.3 3.3 10.2 17.7 21.1 25.9 29.4 29.9 24.7 19.4 10.1 1.2 16.2 1995 4.4 6.5 11.5 15.3 22.4 26.1 30.4 33.0 26.5 18.2 11.5 3.9 17.5 1996 1.6 5.2 7.9 14.5 23.4 26.9 31.7 32.3 27.4 18.9 10.8 8.2 17.4 1997 2.6 1.9 4.9 15.2 22.1 28.0 30.3 32.4 24.8 20.1 10.9 4.8 16.5 1998 -1.1 0.7 9.4 17.0 21.8 30.3 30.9 32.7 27.2 20.5 14.9 8.2 17.7 1999 4.3 7.5 10.1 15.8 22.8 29.2 30.3 33.4 26.4 19.4 9.1 ****** ****** 2000 2.8 4.1 8.9 18.9 23.7 29.3 34.2 32.0 27.1 17.2 9.8 4.9 17.7 2001 2.4 6.1 13.6 18.7 22.5 29.3 30.7 32.4 27.8 19.1 9.5 6.0 18.2 2002 1.8 6.4 12.3 14.0 19.7 27.9 31.2 31.2 29.7 22.3 12.4 -0.3 17.4 2003 2.6 4.5 7.6 14.9 22.2 27.4 30.8 32.3 27.0 22.8 11.0 4.0 17.3 MEAN 1.9 3.9 9.1 16.1 21.1 27.2 31.1 31.2 27.0 19.2 11.0 4.4 16.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 ****** ****** ****** ****** ****** ****** 14.2 15.3 14.7 18.1 13.6 16.5 ****** 1975 13.7 12.7 16.6 19.6 13.7 17.0 18.0 16.6 15.9 15.1 14.9 13.3 15.6 1976 12.5 12.2 10.0 11.3 11.6 15.4 16.3 19.0 17.0 16.0 15.3 11.7 14.0 1977 10.3 12.8 13.2 13.2 13.7 16.9 16.0 18.5 18.6 16.8 14.6 10.8 14.6 1978 10.8 11.2 14.5 14.4 15.7 16.1 19.1 18.1 20.5 18.9 14.2 12.2 15.5 1979 12.7 ****** ****** ****** 10.5 11.3 15.4 16.9 16.5 16.6 14.9 17.1 ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 15.0 12.2 12.3 12.9 14.5 11.6 17.0 16.7 15.8 ****** 11.2 9.3 ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 10.2 10.0 10.0 13.4 11.8 17.7 17.5 17.6 16.8 14.4 8.5 7.5 12.9 1985 8.8 8.9 11.4 12.6 ****** 17.2 15.9 16.4 16.9 12.4 10.3 8.0 ****** 1986 13.3 9.7 11.1 13.2 16.1 17.0 17.5 16.4 18.5 13.6 9.3 11.7 13.9 1987 12.8 10.3 10.5 14.7 17.7 17.1 16.7 16.9 16.8 10.7 13.3 9.1 13.9 1988 9.6 9.9 12.5 13.1 16.4 19.5 20.4 12.5 15.7 13.5 11.4 9.5 13.7 1989 10.6 11.1 9.4 15.6 15.8 16.6 15.3 15.8 16.9 13.2 10.0 10.2 13.4 1990 10.4 8.9 10.7 11.6 15.3 17.6 15.5 15.8 18.6 15.2 14.1 10.5 13.7 1991 10.1 11.1 9.1 13.3 14.6 15.0 16.3 15.2 17.2 14.2 11.7 7.6 12.9 1992 10.4 9.7 ****** 11.6 10.9 14.1 15.6 ****** 15.9 16.7 10.7 8.2 ****** 1993 9.3 9.4 10.3 11.6 12.4 14.9 15.0 15.9 18.0 15.8 7.3 6.4 12.2 1994 7.8 9.7 11.0 12.5 14.0 14.3 14.9 14.7 15.6 14.6 9.9 9.3 12.4 1995 9.5 10.1 13.2 12.5 14.7 15.0 14.9 17.5 16.5 16.0 13.6 11.7 13.8 1996 8.4 9.5 10.2 12.4 14.7 16.0 14.9 17.4 17.1 14.2 12.5 9.3 13.0 1997 10.8 12.8 10.3 12.7 14.9 15.9 15.0 16.6 16.4 15.9 12.2 10.3 13.6 1998 8.6 10.6 11.3 13.4 13.5 16.8 14.9 16.8 16.4 16.4 14.0 10.0 13.6 1999 8.9 12.0 12.4 12.6 16.1 16.5 15.0 16.4 16.4 15.3 11.5 ****** ****** 2000 10.7 12.2 12.4 13.9 15.8 16.9 16.2 16.2 15.8 13.2 10.8 8.4 13.5 2001 9.0 10.2 12.8 13.9 15.5 17.2 14.7 16.6 17.0 14.9 11.0 8.8 13.5 2002 10.3 11.6 13.5 10.3 13.3 17.4 15.6 16.8 19.2 16.3 13.4 8.2 13.8 2003 8.6 8.9 9.6 11.8 15.3 16.1 15.0 15.9 16.3 16.5 12.6 8.2 12.9 MEAN 10.5 10.7 11.6 13.1 14.3 16.0 16.0 16.5 16.9 15.2 12.1 10.1 13.6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 ****** ****** ****** ****** ****** ****** 10.73 10.64 8.34 5.64 4.74 1.90 ****** 1975 1.32 1.93 2.33 4.87 7.68 9.10 9.62 8.74 7.70 5.24 3.04 1.84 5.28 1976 1.90 1.53 3.01 5.25 7.52 9.63 10.39 9.56 7.98 5.27 3.39 2.97 5.70 1977 1.47 2.78 3.85 5.18 6.73 9.38 9.94 9.46 7.24 4.19 3.46 2.50 5.51 1978 2.35 3.01 3.51 4.24 6.02 7.44 7.78 8.41 6.33 4.99 2.16 2.25 4.87 1979 ****** 2.70 3.24 5.77 7.09 10.14 12.73 10.93 10.90 5.30 3.95 ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 1.13 2.50 3.91 4.46 5.41 8.94 11.28 9.87 9.39 ****** 4.52 3.41 ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 2.05 1.89 4.12 4.34 5.58 6.80 7.33 7.62 6.57 4.35 4.53 2.24 4.78 1985 2.64 2.53 2.98 4.74 ****** 7.01 8.44 7.07 5.72 4.68 4.18 2.58 ****** 1986 2.05 2.85 3.07 4.64 5.08 6.61 7.99 8.75 6.41 5.78 3.73 1.98 4.91 1987 2.54 3.02 2.99 3.75 5.71 6.27 8.29 7.75 6.54 4.69 2.97 2.80 4.78 1988 2.08 2.31 3.15 4.20 6.14 7.83 9.71 9.56 7.12 5.50 3.56 3.10 5.36 1989 1.53 1.40 3.83 5.04 6.26 7.60 9.22 8.59 6.86 5.54 4.38 2.97 5.27 1990 2.08 2.51 3.42 5.16 6.31 7.79 8.50 8.74 5.67 5.37 3.84 3.05 5.20 1991 2.23 2.29 3.88 4.79 5.75 7.82 8.60 9.10 6.26 5.34 3.84 2.74 5.22 1992 1.84 2.40 ****** 4.98 6.67 8.39 8.60 ****** 6.27 4.05 3.77 2.99 ****** 1993 1.96 2.36 2.84 4.41 6.31 7.72 8.93 8.06 6.33 4.44 4.03 3.49 5.07 1994 2.86 2.55 3.96 5.41 6.55 8.01 8.60 8.57 5.80 5.92 4.62 2.68 5.46 1995 3.09 3.22 3.69 5.20 6.75 9.03 10.14 10.36 7.13 4.73 3.45 2.38 5.76 1996 2.46 3.04 3.39 4.44 7.08 7.35 9.45 7.85 6.91 5.06 3.62 3.59 5.35 1997 2.38 2.07 2.79 4.11 6.64 8.58 10.51 9.74 6.75 5.64 4.02 2.94 5.51 1998 2.18 1.96 3.20 4.90 6.86 8.44 8.85 8.83 7.30 4.54 4.09 3.25 5.37 1999 2.96 2.79 3.10 4.60 6.12 7.07 7.81 8.82 6.99 4.88 3.60 ****** ****** 2000 2.41 2.45 3.36 5.28 6.33 7.69 8.92 8.66 7.16 5.14 4.09 3.57 5.42 2001 2.76 3.09 4.01 5.00 5.93 7.47 9.05 8.61 7.09 5.16 4.01 3.62 5.48 2002 2.36 3.03 3.70 5.65 6.64 7.53 9.34 8.78 6.56 5.46 3.61 2.52 5.43 2003 2.79 2.94 3.48 5.08 6.50 8.51 10.66 9.55 7.09 5.38 3.50 3.11 5.72 MEAN 2.22 2.51 3.40 4.83 6.39 8.01 9.32 8.95 7.06 5.09 3.81 2.82 5.36 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 ****** ****** ****** ****** ****** ****** 13.91 16.61 12.27 10.72 6.64 4.51 ****** 1975 3.55 4.17 4.36 7.32 10.28 11.22 11.64 9.68 9.32 8.03 4.74 2.50 7.23 1976 3.73 3.06 4.49 7.18 9.86 10.95 11.94 10.37 9.12 7.67 5.60 4.49 7.37 1977 2.61 5.57 6.09 7.72 9.15 10.69 11.64 11.95 10.46 6.61 6.01 3.68 7.68 1978 3.85 4.46 5.24 5.88 7.57 8.80 8.85 8.77 6.84 5.83 4.27 3.98 6.20 1979 3.41 4.03 4.40 9.40 9.72 12.08 17.81 17.69 17.03 10.29 7.71 4.14 9.81 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 3.17 4.07 5.38 6.41 7.33 9.90 17.56 16.82 14.43 ****** 6.02 4.29 ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 4.17 3.78 4.23 4.33 5.36 6.44 6.25 7.39 6.11 4.25 5.28 2.98 5.05 1985 3.50 3.09 3.94 4.89 ****** 6.33 8.37 6.45 5.45 4.38 4.92 3.70 ****** 1986 2.83 3.31 3.64 6.19 6.61 9.10 10.52 9.46 6.75 6.86 4.76 2.73 6.06 1987 3.13 3.64 3.62 4.54 6.27 7.52 9.58 9.15 7.75 5.68 4.06 3.60 5.71 1988 2.59 2.69 3.78 4.96 6.60 7.88 9.42 9.74 7.44 6.36 4.00 3.69 5.76 1989 2.08 2.07 4.33 5.43 6.01 7.67 9.46 9.59 8.78 6.13 5.06 3.54 5.85 1990 2.77 2.98 3.71 5.04 6.01 7.23 9.31 9.68 7.28 6.20 4.28 3.51 5.67 1991 3.02 2.79 4.10 5.05 5.81 7.92 9.53 10.37 7.69 6.66 4.84 3.12 5.91 1992 2.45 2.99 ****** 4.93 6.51 8.24 9.57 ****** 6.84 5.07 4.59 3.47 ****** 1993 2.50 2.93 3.33 4.93 6.56 7.85 9.30 8.88 7.24 4.92 4.53 4.13 5.59 1994 3.35 2.93 4.07 5.85 6.50 7.51 9.80 9.31 7.35 6.32 5.09 3.35 5.95 1995 3.89 3.74 4.12 5.49 5.96 8.06 10.54 9.89 7.83 4.95 3.96 3.13 5.96 1996 2.92 3.31 3.68 4.47 6.89 7.51 9.97 8.11 6.73 5.51 4.65 4.38 5.68 1997 3.03 2.78 3.27 4.47 6.20 7.56 9.58 9.01 5.80 5.52 4.52 3.36 5.43 1998 2.61 2.45 3.55 5.02 6.97 8.02 8.91 8.48 6.64 4.82 4.81 3.77 5.50 1999 3.17 3.02 3.22 4.51 5.86 6.87 7.94 8.67 7.15 5.20 4.07 ****** ****** 2000 3.15 3.26 3.52 5.28 5.73 7.40 8.35 8.03 6.89 5.48 4.52 4.03 5.47 2001 3.39 3.48 4.36 4.84 5.26 6.75 9.14 8.91 7.03 5.48 4.61 4.08 5.61 2002 3.03 3.28 3.52 5.23 6.28 5.83 8.72 8.53 7.06 5.79 4.22 2.94 5.37 2003 3.22 3.18 3.45 5.38 6.42 7.60 9.98 9.36 7.09 5.45 4.04 3.67 5.74 MEAN 3.12 3.35 4.06 5.57 6.87 8.20 10.29 10.04 8.17 6.17 4.89 3.65 6.19 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 ****** ****** ****** ****** ****** ****** 13.30 13.32 10.74 8.67 5.32 2.56 ****** 1975 1.58 2.77 3.62 6.15 8.05 9.10 9.31 8.66 8.17 6.24 4.12 1.80 5.80 1976 2.50 1.93 3.74 5.84 8.43 9.11 9.43 8.91 7.79 6.32 4.26 3.49 5.98 1977 1.94 3.81 4.94 6.29 7.66 8.99 10.98 9.32 8.45 5.41 4.61 2.99 6.28 1978 3.29 3.96 4.70 4.93 6.67 7.94 8.09 7.97 6.07 5.31 3.54 3.32 5.48 1979 2.81 3.06 4.23 8.18 9.25 11.40 15.90 16.23 15.10 9.47 6.67 3.09 8.78 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 2.25 3.65 4.62 5.69 6.12 9.70 13.57 12.64 11.42 ****** 5.22 3.99 ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 3.16 2.72 4.25 3.84 5.48 6.05 6.23 5.90 5.76 4.79 5.17 2.55 4.66 1985 3.21 2.91 3.89 4.56 ****** 4.68 7.19 5.56 4.90 4.01 4.12 3.28 ****** 1986 2.60 3.20 3.04 5.39 4.97 7.27 7.89 9.35 5.82 5.02 3.97 2.54 5.09 1987 2.82 3.28 3.27 3.71 6.48 6.90 7.97 7.23 5.86 4.49 3.31 2.86 4.85 1988 2.61 2.78 3.27 5.09 5.64 7.39 8.91 9.53 6.72 6.47 4.42 3.48 5.53 1989 1.75 1.99 4.14 4.98 5.37 6.05 8.76 8.11 7.46 5.61 4.84 3.30 5.20 1990 2.55 2.83 3.74 4.79 5.75 7.03 8.96 8.95 7.58 6.08 4.19 3.38 5.49 1991 2.84 2.67 4.15 4.62 5.21 7.51 9.31 9.95 7.43 6.27 4.36 3.12 5.62 1992 2.22 2.91 ****** 4.68 6.32 7.47 8.75 ****** 6.25 5.01 4.33 3.30 ****** 1993 2.32 3.08 3.34 4.65 6.28 6.89 9.04 7.63 6.62 5.44 4.27 3.86 5.28 1994 3.20 2.90 3.91 5.19 5.79 7.55 8.96 8.18 6.50 6.72 5.28 3.00 5.60 1995 3.93 3.54 3.86 5.01 5.84 7.79 9.80 8.81 7.13 4.99 4.03 2.98 5.64 1996 2.92 3.23 3.70 4.34 6.30 7.13 9.95 7.36 5.46 5.48 4.62 4.45 5.41 1997 2.93 2.68 3.28 3.91 5.59 6.68 8.05 7.95 4.74 5.09 4.59 3.42 4.91 1998 2.45 2.56 3.43 4.69 6.40 7.52 8.65 7.09 5.37 4.82 4.79 3.84 5.13 1999 3.33 2.37 3.00 4.18 5.21 6.45 7.61 7.84 6.12 4.96 4.22 ****** ****** 2000 3.03 3.25 3.24 4.91 5.19 6.24 7.93 7.16 6.10 6.00 4.61 4.01 5.14 2001 3.27 3.41 4.14 4.35 4.68 5.89 8.45 7.29 6.05 5.75 4.79 4.06 5.18 2002 3.03 3.09 3.35 5.11 6.07 5.56 8.53 7.63 6.17 6.61 4.66 2.85 5.22 2003 3.27 3.17 3.54 4.89 6.09 7.63 9.31 8.38 6.71 6.48 4.19 3.47 5.59 MEAN 2.77 3.00 3.78 5.00 6.20 7.39 9.29 8.73 7.13 5.83 4.54 3.27 5.57 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 1974 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 9.0 7 9.5 26 5.0 28 -1.5 20 -9.5 27 -17.0 24 ***** 1975 -14.5 3 -17.6 12 -20.0 17 -6.0 1 1.0 2 8.0 14 11.0 2 7.5 18 6.5 14 -1.5 31 -15.5 30 -17.0 5 -20.0 1976 -15.0 7 -17.0 19 -16.0 3 0.5 2 3.5 7 7.0 11 9.0 5 9.0 22 3.0 29 -2.0 31 -8.0 30 -8.5 1 -17.0 1977 -21.0 16 -9.0 5 -6.5 6 -1.0 17 4.0 19 4.5 2 11.0 3 8.0 30 5.5 24 -9.0 24 -6.0 17 -17.0 25 -21.0 1978 -12.5 1 -11.0 26 -5.5 18 -3.0 14 1.0 3 3.0 2 7.0 1 10.0 21 4.0 25 -1.5 30 -10.0 6 -10.5 18 -12.5 1979 -15.0 11 -7.5 19 -14.5 1 1.0 2 5.5 8 10.0 11 13.5 4 12.5 7 13.0 20 2.0 12 -4.5 30 -12.5 24 -15.0 1980 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1981 -14.0 14 -10.0 2 -8.5 3 -6.5 1 1.5 3 10.0 1 11.5 3 11.0 27 10.5 27 ***** ** -4.5 6 -6.0 21 ***** 1982 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1983 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1984 -18.5 31 -13.5 2 -6.0 15 -3.5 6 -1.5 1 1.5 16 7.5 30 3.0 27 7.5 14 -6.5 20 -6.2 14 -15.5 8 -18.5 1985 -15.0 7 -21.5 23 -24.0 3 -0.5 7 ***** ** 8.4 10 10.4 29 10.6 13 3.0 21 -4.4 30 -3.6 1 -18.6 31 ***** 1986 -20.8 21 -10.4 3 -8.4 3 -0.6 21 0.4 6 2.6 22 11.0 27 8.6 5 7.0 26 1.0 25 -6.2 15 -15.6 12 -20.8 1987 -9.0 14 -8.0 22 -7.8 15 -6.8 21 2.2 4 7.4 3 9.8 4 7.2 30 4.2 22 -2.4 27 -10.0 30 -19.6 31 -19.6 1988 -19.6 1 -16.2 6 -10.0 6 -4.6 1 2.2 3 3.5 26 4.5 3 8.0 30 7.0 9 -1.0 22 -13.0 15 -20.0 29 -20.0 1989 -20.5 5 -23.0 9 -8.0 30 0.5 6 2.0 8 7.0 2 13.0 7 12.0 27 4.0 20 0.0 25 -9.0 21 -9.0 8 -23.0 1990 -19.0 8 -14.0 6 -12.0 17 -4.0 4 -1.0 7 8.0 6 11.0 5 11.0 25 7.0 18 0.0 17 -7.0 18 -19.0 29 -19.0 1991 -16.0 25 -17.0 12 -15.0 11 -2.0 11 2.0 3 6.0 1 11.0 7 12.0 14 5.0 24 2.0 23 -5.0 24 -13.0 20 -17.0 1992 -19.0 25 -18.0 29 ***** ** -3.0 3 -2.0 5 6.0 5 9.0 12 ***** ** 1.0 28 -2.0 28 -10.0 27 -15.0 27 ***** 1993 -20.0 17 -19.0 16 -14.0 13 -12.0 23 2.0 1 6.0 4 10.0 1 9.0 29 4.0 25 -2.0 30 -13.0 15 -11.0 6 -20.0 1994 -13.0 8 -15.0 4 -8.0 16 0.0 4 2.0 3 5.0 30 10.0 1 12.0 29 6.0 20 2.0 10 -6.0 9 -22.1 6 -22.1 1995 -13.0 24 -9.0 25 -9.0 27 -3.0 7 -2.0 9 8.0 1 10.0 3 11.0 17 3.0 22 -1.0 5 -12.0 26 -16.0 19 -16.0 1996 -14.0 14 -19.0 4 -7.0 1 -5.0 6 4.0 9 7.0 9 11.0 15 9.0 23 5.0 19 -1.5 31 -6.2 18 -6.4 20 -19.0 1997 -20.0 29 -24.0 1 -19.2 8 -6.0 13 1.6 2 5.0 3 11.0 22 10.0 15 5.0 9 0.0 30 -6.0 28 -13.0 21 -24.0 1998 -18.0 10 -21.0 16 -10.0 1 -4.0 2 0.0 4 9.0 2 12.0 7 13.0 1 6.0 26 -3.0 12 -2.0 17 -8.0 29 -21.0 1999 -11.0 3 -13.5 4 -6.0 13 -5.0 9 0.5 21 9.0 5 10.0 14 11.0 30 3.0 28 0.0 13 -11.0 29 ***** ** ***** 2000 -20.0 22 -19.0 8 -12.0 15 0.0 1 2.0 10 6.0 13 14.0 5 10.0 31 8.0 16 -1.0 29 -5.0 11 -13.0 23 -20.0 2001 -17.0 28 -10.0 1 -5.0 4 0.0 14 4.0 4 4.0 1 10.0 19 11.0 14 6.0 30 0.0 20 -15.0 20 -13.0 21 -17.0 2002 -15.0 26 -15.0 17 -9.0 10 0.0 1 2.0 1 5.0 7 12.0 13 11.0 16 7.0 10 0.0 23 -7.2 29 -21.0 27 -21.0 2003 -13.0 17 -12.0 28 -14.0 29 -4.0 2 -1.0 8 3.6 6 12.0 2 13.0 26 6.0 10 -3.0 31 -9.0 17 -12.0 13 -14.0 LOW. -21.0 16 -24.0 1 -24.0 3 -12.0 23 -2.0 5 1.5 16 4.5 3 3.0 27 1.0 28 -9.0 24 -15.5 30 -22.1 6 -24.0 YEAR 1977 1997 1985 1993 1992 1984 1988 1984 1992 1977 1975 1994 1985 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 1974 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 36.0 3 36.0 14 28.0 29 25.5 2 21.7 10 16.5 8 ***** 1975 10.0 8 11.5 23 18.0 23 27.0 7 28.5 30 37.0 29 38.5 11 38.5 4 34.0 5 24.0 9 18.0 26 10.0 22 38.5 1976 9.0 18 8.0 9 15.5 29 21.5 28 23.5 19 30.5 22 37.0 31 38.0 11 32.5 4 25.0 2 19.0 5 16.0 15 38.0 1977 4.0 20 17.0 28 19.0 2 22.5 4 27.5 13 33.0 11 35.0 26 36.0 10 30.5 7 28.5 3 16.0 7 12.0 5 36.0 1978 8.5 21 14.0 16 18.5 30 21.0 24 27.0 26 31.0 9 40.0 17 38.0 1 32.0 7 27.0 6 16.0 6 10.0 2 40.0 1979 10.5 3 ***** ** ***** ** ***** ** 25.0 21 28.0 28 37.0 16 35.0 8 35.0 10 30.0 1 20.0 1 12.0 1 ***** 1980 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1981 9.5 7 11.0 9 16.0 10 23.5 21 26.0 31 25.5 17 36.5 22 35.0 3 32.0 3 ***** ** 19.0 2 11.0 3 ***** 1982 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1983 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1984 7.5 30 8.5 11 16.0 11 21.5 8 24.0 26 34.0 30 34.5 6 35.5 21 32.0 4 27.6 1 12.5 2 3.5 14 35.5 1985 8.5 12 11.4 15 18.2 21 23.8 20 ***** ** 34.5 26 36.0 19 33.6 4 33.6 1 27.6 1 14.6 5 6.6 1 ***** 1986 7.6 3 11.0 27 17.4 30 21.0 15 27.4 30 30.2 29 36.2 8 35.4 1 31.6 4 22.6 2 17.6 2 10.0 26 36.2 1987 12.6 31 12.6 25 12.6 9 25.0 30 29.6 9 34.6 27 36.6 15 35.2 12 30.2 5 26.6 2 16.2 6 11.2 11 36.6 1988 6.6 31 10.6 29 15.6 19 22.0 17 29.0 28 32.0 13 36.0 31 31.0 1 31.0 8 24.0 3 19.0 3 12.5 6 36.0 1989 0.0 2 8.0 28 16.5 25 24.5 21 29.0 24 34.0 29 37.0 20 35.0 7 33.0 3 27.0 6 17.0 28 11.0 1 37.0 1990 4.0 3 11.0 18 15.0 31 24.0 27 30.0 31 33.0 3 36.0 18 34.0 4 31.0 9 25.0 8 19.0 3 15.0 3 36.0 1991 8.0 31 10.0 17 19.0 29 25.0 25 25.0 21 33.0 30 37.0 31 38.0 1 33.0 3 24.0 6 18.0 1 11.0 1 38.0 1992 6.0 20 8.0 19 ***** ** 22.0 12 27.0 29 31.0 29 36.0 30 ***** ** 31.0 3 23.0 4 18.0 1 10.0 14 ***** 1993 6.0 28 9.0 27 18.0 31 24.0 19 25.0 17 33.0 27 34.0 15 33.0 31 33.0 1 27.0 1 15.0 8 6.0 24 34.0 1994 9.0 31 10.0 27 16.8 29 25.0 21 28.0 30 31.7 9 33.5 29 34.5 18 29.0 11 23.3 6 17.0 3 10.0 2 34.5 1995 8.0 6 11.0 22 18.0 24 20.5 30 28.0 22 32.5 21 34.3 16 37.0 5 33.5 3 27.0 3 18.0 22 8.5 29 37.0 1996 9.0 1 11.6 25 17.0 30 22.4 30 28.2 31 32.8 30 35.5 21 36.5 21 31.9 1 25.7 2 15.5 5 13.5 27 36.5 1997 12.2 6 9.0 19 12.6 31 26.8 25 28.4 28 33.0 22 36.5 28 35.7 27 30.3 1 25.0 6 15.0 5 12.7 8 36.5 1998 3.0 30 6.5 6 18.0 29 26.0 15 29.4 28 36.3 23 36.0 17 38.0 30 35.6 1 26.2 1 18.8 4 20.0 10 38.0 1999 8.0 31 11.5 26 15.0 7 23.5 30 32.0 30 33.3 24 35.5 21 39.7 12 31.0 2 28.0 1 17.0 19 ***** ** ***** 2000 11.2 1 11.3 24 15.6 31 24.6 14 28.4 25 34.5 30 37.5 20 36.5 2 31.8 6 23.0 8 14.2 4 9.0 1 37.5 2001 8.5 16 12.0 28 21.6 28 24.5 5 29.0 28 35.0 26 37.0 29 37.5 1 31.5 13 25.0 4 20.0 6 13.5 28 37.5 2002 12.8 3 12.0 26 20.0 26 18.5 15 28.0 28 34.0 27 35.0 15 34.0 3 32.0 3 28.0 1 18.5 11 7.0 8 35.0 2003 10.0 7 10.0 8 14.4 10 23.5 5 27.0 16 32.5 18 35.0 13 39.0 10 35.5 5 27.0 9 17.5 10 12.0 18 39.0 HIG. 12.8 3 17.0 28 21.6 28 27.0 7 32.0 30 37.0 29 40.0 17 39.7 12 35.6 1 30.0 1 21.7 10 20.0 10 40.0 YEAR 2002 1977 2001 1975 1999 1975 1978 1999 1998 1979 1974 1998 1978 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 1974 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 9.0 7 9.5 29 1.2 12 0.0 ** 12.0 24 12.0 6 ***** 1975 5.3 29 22.9 21 15.6 15 16.5 23 15.0 6 1.0 1 0.0 ** 0.0 ** 16.0 30 21.0 15 12.0 28 3.2 2 22.9 1976 9.2 15 5.4 12 11.0 31 20.0 30 20.0 7 4.3 8 0.0 ** 0.0 ** 2.0 26 10.0 21 16.0 25 1.0 25 20.0 1977 7.6 21 0.0 ** 9.0 30 30.0 15 20.5 18 3.5 21 0.0 ** 2.5 6 1.5 3 10.4 22 6.0 12 12.6 22 30.0 1978 11.6 26 3.8 3 3.5 31 8.0 14 16.0 6 18.0 25 0.0 ** 0.0 ** 0.0 ** 2.0 20 1.6 11 5.0 13 18.0 1979 2.6 8 9.0 8 9.0 30 13.0 8 7.0 28 7.0 6 0.0 ** 0.0 ** 0.0 ** 5.0 27 2.0 2 4.0 28 13.0 1980 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1981 9.0 12 5.0 21 5.0 28 11.0 16 10.0 13 10.0 11 5.0 4 4.0 6 0.0 ** ***** ** 8.5 5 5.4 19 ***** 1982 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1983 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1984 0.0 ** 6.5 15 20.0 11 5.0 16 16.6 11 1.0 1 2.0 5 0.0 ** 0.6 21 16.5 19 14.8 5 2.0 7 20.0 1985 10.4 16 18.0 2 14.2 26 7.0 4 ***** ** 1.6 28 0.0 ** 0.2 5 0.0 ** 13.6 11 5.4 26 15.0 20 ***** 1986 6.0 20 10.0 10 13.0 31 8.6 11 12.2 9 17.4 18 5.0 25 3.5 22 8.0 30 14.0 10 10.6 29 6.2 27 17.4 1987 0.0 ** 10.0 21 10.0 26 15.0 13 13.0 18 1.0 18 0.0 ** 0.0 ** 1.0 14 19.0 20 7.4 7 16.4 18 19.0 1988 5.2 28 7.2 4 12.6 1 7.8 28 12.0 4 10.5 19 4.5 1 13.5 23 0.0 ** 6.5 16 19.0 14 10.0 26 19.0 1989 7.0 3 0.0 ** 14.0 9 6.4 13 16.0 5 2.0 12 3.0 27 3.0 18 4.0 19 40.0 30 13.5 12 3.0 5 40.0 1990 4.0 1 3.0 4 10.0 7 19.0 29 4.0 12 0.0 ** 0.0 ** 0.0 ** 0.0 ** 5.5 1 2.0 13 14.0 22 19.0 1991 2.0 4 10.0 27 25.0 10 8.5 4 16.0 25 2.0 6 2.5 23 0.0 ** 0.0 ** 4.0 15 16.0 4 23.0 9 25.0 1992 8.0 3 6.0 24 ***** ** 15.0 30 10.0 12 3.0 21 6.5 9 ***** ** 0.0 ** 0.0 ** 19.5 11 4.0 3 ***** 1993 7.0 14 9.0 15 15.0 3 19.0 20 9.5 31 7.0 5 10.0 12 2.5 7 0.0 ** 25.0 28 12.0 24 5.0 15 25.0 1994 7.0 16 4.0 2 11.0 21 19.0 30 33.0 13 4.0 28 0.0 ** 0.0 ** 5.0 8 5.0 15 23.0 5 7.0 4 33.0 1995 5.5 16 8.0 5 12.0 17 18.0 11 7.0 14 26.5 3 1.0 8 0.0 ** 10.5 20 1.0 24 8.0 3 1.5 17 26.5 1996 4.0 4 5.0 20 9.0 19 16.0 12 17.0 8 3.0 4 15.0 4 0.0 ** 12.0 23 16.0 15 16.0 7 10.0 11 17.0 1997 8.0 16 0.5 26 7.0 7 6.0 28 9.0 21 3.0 7 20.5 5 0.0 ** 12.0 14 3.0 29 6.0 13 10.5 10 20.5 1998 6.0 6 15.0 15 19.5 17 17.5 28 11.0 11 3.0 13 25.0 18 0.0 ** 2.0 26 1.0 2 23.0 24 10.0 24 25.0 1999 7.0 9 10.0 4 5.0 17 18.0 8 14.5 14 5.0 10 9.0 14 15.0 8 0.0 ** 21.5 12 5.0 11 ***** ** ***** 2000 7.0 21 17.5 7 7.0 23 7.0 29 6.0 9 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.5 24 14.0 23 8.0 22 17.5 2001 2.0 21 13.0 4 12.0 9 5.5 12 8.0 3 0.0 ** 5.5 11 0.0 ** 0.0 ** 8.0 18 19.0 18 8.5 20 19.0 2002 12.0 23 5.0 16 5.5 22 16.5 3 11.0 11 0.0 ** 1.5 27 0.0 ** 0.0 ** 3.5 4 11.0 14 6.0 1 16.5 2003 6.0 29 4.5 19 10.0 28 15.0 27 8.0 29 5.0 5 0.5 7 25.5 22 0.0 ** 0.5 4 3.5 11 10.5 16 25.5 HIG. 12.0 23 22.9 21 25.0 10 30.0 15 33.0 13 26.5 3 25.0 18 25.5 22 16.0 30 40.0 30 23.0 5 23.0 9 40.0 YEAR 2002 1975 1991 1977 1994 1995 1998 2003 1975 1989 1994 1991 1989 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1974 ****** ****** ****** ****** ****** ****** 16.0 10.8 1.2 0.0 28.0 31.0 ****** ***** ***** 32.2 67.8 1975 12.3 35.2 44.2 56.5 62.3 2.5 0.0 0.0 17.6 43.5 13.5 10.2 297.8 30.8 40.7 5.9 22.6 1976 18.4 25.2 29.4 65.0 106.2 9.3 0.0 0.0 2.0 25.5 17.0 2.0 300.0 24.3 60.2 0.7 14.8 1977 18.0 0.0 39.5 82.4 67.7 5.5 0.0 7.0 1.5 27.9 6.0 45.9 301.4 19.1 51.6 2.8 26.5 1978 19.9 6.0 7.9 23.5 71.4 41.5 0.0 0.0 0.0 6.0 4.1 20.5 200.8 16.8 67.9 0.0 15.2 1979 4.2 25.2 36.4 30.0 30.0 28.5 0.0 0.0 0.0 24.0 6.0 16.0 200.3 32.9 44.2 0.0 23.0 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1981 32.0 10.2 34.4 69.5 49.0 38.0 10.0 4.0 0.0 ****** 24.5 5.4 ****** 27.7 56.5 5.1 10.8 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1984 0.0 10.5 48.0 7.4 67.3 2.0 2.4 0.0 0.6 24.5 54.2 4.6 221.5 26.4 34.6 1.4 37.6 1985 27.0 42.7 23.9 31.8 ****** 3.4 0.0 0.2 0.0 22.6 13.4 44.6 ****** 44.7 16.8 0.1 38.5 1986 13.8 20.2 41.4 38.2 52.8 79.8 7.0 5.5 12.4 38.4 37.4 19.8 366.7 20.6 46.6 6.8 26.1 1987 0.0 30.0 35.8 41.6 42.8 1.0 0.0 0.0 1.4 75.6 11.6 113.0 352.8 18.7 24.2 0.4 56.7 1988 27.2 29.2 43.1 40.8 44.5 46.3 8.8 32.0 0.0 18.2 48.0 26.2 364.3 27.3 36.1 11.2 25.4 1989 19.0 0.0 42.0 13.7 26.0 2.5 3.0 3.0 7.0 101.0 30.5 4.5 252.2 24.2 16.7 5.2 53.9 1990 17.0 10.0 34.0 50.5 14.0 0.0 0.0 0.0 0.0 15.5 2.0 29.8 172.8 35.3 37.3 0.0 27.4 1991 2.0 21.5 72.0 29.5 58.5 6.0 5.5 0.0 0.0 8.0 16.0 57.0 276.0 34.6 34.1 2.0 29.3 1992 24.5 26.0 ****** 49.8 53.0 14.0 6.5 ****** 0.0 0.0 71.2 12.0 ****** 19.6 45.4 2.5 32.4 1993 28.0 24.0 34.0 78.0 31.5 15.5 15.0 6.5 0.0 36.5 29.7 10.0 308.7 27.9 40.5 7.0 24.7 1994 29.0 5.0 53.3 67.2 72.0 11.0 0.0 0.0 12.0 17.5 55.0 14.0 336.0 26.0 44.7 3.6 25.7 1995 12.5 9.0 41.5 52.5 25.5 39.5 1.6 0.0 12.5 1.0 27.0 1.5 224.1 28.1 52.4 6.3 13.2 1996 13.5 9.0 15.5 51.0 33.0 3.0 36.0 0.0 18.0 27.0 56.0 28.0 290.0 13.1 30.0 18.6 38.3 1997 24.0 0.5 17.0 15.0 26.5 12.5 30.5 0.0 12.0 7.0 17.0 13.3 175.3 23.7 30.8 24.2 21.3 1998 28.0 28.8 31.0 41.0 51.0 5.0 34.0 0.0 2.0 1.0 47.0 17.0 285.8 30.7 33.9 12.6 22.7 1999 15.0 18.0 13.5 70.0 46.0 7.0 9.0 27.0 0.0 50.0 19.0 ****** ****** 16.9 44.8 13.1 25.1 2000 16.0 27.1 19.0 24.2 8.5 0.0 0.0 0.0 0.0 26.5 26.0 13.0 160.3 38.7 20.4 0.0 40.9 2001 6.1 17.5 19.0 19.9 19.0 0.0 10.0 0.0 0.0 17.5 50.0 25.8 184.8 23.1 21.0 5.4 50.5 2002 26.8 6.5 23.0 101.5 101.0 0.0 1.5 0.0 0.0 5.5 22.5 37.0 325.3 17.3 62.3 0.5 20.0 2003 15.2 14.5 18.3 71.0 23.5 13.5 0.5 26.5 0.0 0.5 8.5 17.5 209.5 22.9 51.6 12.9 12.6 MEAN 17.3 17.4 32.7 47.0 47.3 14.9 7.3 4.7 3.7 23.9 27.4 23.8 267.4 25.1 40.9 5.9 28.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 *** *** *** *** *** *** 3 2 1 0 5 6 *** 1975 5 5 7 5 12 3 0 0 3 5 2 4 51 1976 5 8 7 9 19 3 0 0 1 7 3 2 64 1977 4 0 11 10 11 2 0 4 1 5 1 9 58 1978 4 2 5 6 11 6 0 0 0 5 5 9 53 1979 3 5 12 10 11 9 0 0 0 12 4 5 71 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 6 4 12 13 9 8 3 1 0 *** 6 1 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 0 2 5 3 12 2 3 0 1 3 9 5 45 1985 10 11 7 10 *** 3 0 1 0 5 6 8 *** 1986 5 5 9 11 12 11 3 3 4 8 9 8 88 1987 0 6 12 7 5 1 0 0 2 11 2 15 61 1988 13 10 9 12 9 10 4 5 0 7 9 7 95 1989 4 0 8 6 7 2 1 1 2 8 6 3 48 1990 6 5 7 6 6 0 0 0 0 5 1 8 44 1991 1 5 10 5 9 4 3 0 0 3 1 10 51 1992 6 8 *** 10 13 8 1 *** 0 0 8 5 *** 1993 6 7 6 12 8 4 4 4 0 3 9 4 67 1994 8 3 10 12 9 5 0 0 3 6 9 5 70 1995 3 2 7 8 9 3 2 0 2 1 7 1 45 1996 4 2 3 10 6 1 6 0 2 5 6 5 50 1997 5 1 5 5 6 5 4 0 1 3 4 3 42 1998 7 7 4 7 11 2 5 0 1 1 3 4 52 1999 4 3 5 7 7 2 1 5 0 5 5 *** *** 2000 4 5 6 6 2 0 0 0 0 7 4 4 38 2001 7 4 3 8 5 0 3 0 0 6 5 7 48 2002 6 2 6 12 13 0 1 0 0 3 6 15 64 2003 5 9 6 13 7 7 1 2 0 1 3 5 59 MEAN 5 5 7 9 9 4 2 1 1 5 5 6 59 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 1974 *** *** *** *** *** *** 3 2 1 0 5 6 *** 1975 5 5 7 5 12 2 0 0 2 5 2 4 49 1976 5 7 7 9 16 3 0 0 1 6 1 2 57 1977 4 0 11 10 11 2 0 3 1 5 1 9 57 1978 2 2 4 6 10 6 0 0 0 4 1 7 42 1979 1 4 12 10 11 9 0 0 0 12 4 5 68 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 6 4 12 13 9 8 3 1 0 *** 6 1 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 0 2 4 3 10 2 1 0 0 3 7 2 34 1985 7 8 5 8 *** 2 0 0 0 5 5 6 *** 1986 4 4 7 11 12 11 3 2 3 8 8 6 79 1987 0 6 12 7 5 1 0 0 1 10 2 14 58 1988 11 10 9 12 9 10 3 3 0 6 9 6 88 1989 4 0 8 5 5 1 1 1 2 8 6 2 43 1990 6 5 7 6 6 0 0 0 0 5 1 8 44 1991 1 5 10 5 9 4 3 0 0 3 1 10 51 1992 6 8 *** 9 12 8 1 *** 0 0 8 5 *** 1993 6 7 6 12 6 4 3 3 0 3 9 4 63 1994 6 1 8 12 9 3 0 0 3 6 9 3 60 1995 3 2 7 8 8 3 1 0 2 1 6 1 42 1996 4 2 3 9 6 1 6 0 2 5 6 5 49 1997 5 0 5 5 6 5 4 0 1 3 4 2 40 1998 7 5 4 7 11 2 5 0 1 1 3 4 50 1999 4 3 5 7 7 2 1 5 0 5 5 *** *** 2000 4 5 4 6 2 0 0 0 0 6 4 4 35 2001 3 3 3 7 4 0 2 0 0 5 4 5 36 2002 5 2 6 12 13 0 1 0 0 3 5 13 60 2003 5 8 5 10 7 7 0 2 0 0 3 5 52 MEAN 4 4 7 8 9 4 2 1 1 5 5 5 55 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 1974 *** *** *** *** *** *** 0 0 0 0 1 1 *** 1975 0 1 2 3 1 0 0 0 1 2 1 0 11 1976 0 0 1 2 4 0 0 0 0 1 1 0 9 1977 0 0 0 4 1 0 0 0 0 1 0 1 7 1978 1 0 0 0 2 2 0 0 0 0 0 0 5 1979 0 0 0 1 0 0 0 0 0 0 0 0 1 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 0 0 0 2 1 1 0 0 0 *** 0 0 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 0 0 3 0 3 0 0 0 0 1 3 0 10 1985 1 1 1 0 *** 0 0 0 0 1 0 2 *** 1986 0 1 2 0 1 4 0 0 0 2 1 0 11 1987 0 1 1 2 3 0 0 0 0 3 0 5 15 1988 0 0 1 0 3 1 0 2 0 0 2 1 10 1989 0 0 1 0 1 0 0 0 0 3 1 0 6 1990 0 0 1 3 0 0 0 0 0 0 0 1 5 1991 0 1 3 0 2 0 0 0 0 0 1 1 8 1992 0 0 *** 1 2 0 0 *** 0 0 4 0 *** 1993 0 0 1 3 0 0 1 0 0 2 1 0 8 1994 0 0 1 3 1 0 0 0 0 0 1 0 6 1995 0 0 2 1 0 1 0 0 1 0 0 0 5 1996 0 0 0 2 1 0 1 0 1 1 4 1 11 1997 0 0 0 0 0 0 1 0 1 0 0 1 3 1998 0 1 1 1 2 0 1 0 0 0 2 1 9 1999 0 1 0 4 2 0 0 1 0 1 0 *** *** 2000 0 1 0 0 0 0 0 0 0 0 1 0 2 2001 0 1 1 0 0 0 0 0 0 0 3 0 5 2002 1 0 0 4 6 0 0 0 0 0 1 0 12 2003 0 0 1 1 0 0 0 1 0 0 0 1 4 MEAN 0 0 1 1 1 0 0 0 0 1 1 1 6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 *** *** *** *** *** *** 73 78 82 75 74 70 *** 1975 54 66 63 70 77 67 59 59 70 74 67 68 66 1976 57 58 72 78 80 69 65 60 72 78 76 74 70 1977 65 78 74 76 77 72 69 69 66 72 79 70 72 1978 71 77 74 68 76 71 58 61 61 68 62 64 68 1979 *** 68 73 69 69 74 72 65 65 66 60 *** *** 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 39 62 75 71 65 68 62 60 59 *** 70 67 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 58 60 72 64 71 54 47 61 65 70 89 81 66 1985 88 77 83 75 *** 59 62 56 59 79 80 83 *** 1986 79 76 76 76 74 73 60 54 60 82 81 74 72 1987 75 76 73 68 63 55 59 62 70 77 72 72 69 1988 78 76 75 70 73 66 69 73 71 75 78 85 74 1989 84 81 87 74 70 58 56 61 77 74 83 83 74 1990 88 81 80 78 66 63 57 68 58 86 79 85 74 1991 85 79 83 73 77 69 63 65 65 76 81 84 75 1992 83 85 *** 93 91 82 66 *** 70 69 79 82 *** 1993 83 84 78 75 79 76 67 68 69 73 94 95 78 1994 88 82 86 78 82 75 67 65 65 86 91 88 79 1995 90 86 83 85 75 81 74 74 75 83 78 84 81 1996 79 81 84 75 79 67 63 60 72 73 83 78 75 1997 82 84 83 70 78 73 76 69 78 85 88 86 79 1998 86 78 75 80 81 69 63 64 72 70 81 76 75 1999 82 78 75 75 77 59 58 60 74 70 87 *** *** 2000 82 88 86 76 78 68 57 64 69 80 90 92 78 2001 90 86 80 75 73 64 65 62 70 78 89 90 77 2002 83 86 80 90 88 71 68 70 67 77 78 86 79 2003 87 84 81 85 82 82 77 68 73 72 78 83 79 MEAN 77 78 78 76 76 69 64 64 69 76 80 80 74 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 *** *** *** *** *** *** 57 66 63 67 62 66 *** 1975 68 73 59 47 63 43 35 34 44 61 52 58 53 1976 70 68 72 64 67 46 43 31 42 54 57 63 56 1977 78 80 68 65 61 45 43 39 43 54 72 73 60 1978 78 75 60 51 48 45 30 30 28 40 67 69 52 1979 65 70 62 65 71 66 66 65 65 64 64 56 65 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 61 64 62 60 50 54 59 61 59 *** 60 63 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 74 80 57 37 44 29 21 30 28 35 69 78 49 1985 83 65 65 45 *** 26 34 26 26 39 54 79 *** 1986 63 59 59 58 46 50 38 33 29 50 63 59 51 1987 49 58 54 43 33 29 31 34 37 57 46 63 45 1988 69 63 51 45 40 40 39 46 37 46 51 65 49 1989 70 66 63 37 35 31 31 33 42 45 58 59 48 1990 70 64 56 52 38 30 33 38 31 46 42 59 47 1991 70 57 59 44 39 36 34 37 35 46 56 68 48 1992 67 68 *** 52 56 42 35 *** 34 37 56 64 *** 1993 68 66 54 50 45 39 35 34 33 37 75 85 52 1994 74 57 52 49 42 37 38 36 37 44 61 73 50 1995 69 60 49 49 34 39 40 32 37 37 44 59 46 1996 63 57 54 44 39 34 35 28 30 39 54 61 45 1997 60 62 57 40 38 33 36 30 31 36 52 57 44 1998 67 57 47 42 43 29 32 29 30 32 45 52 42 1999 59 45 41 41 37 27 31 29 34 37 53 *** *** 2000 63 62 51 39 31 30 25 28 31 46 57 70 44 2001 70 57 46 36 32 26 33 29 28 39 56 63 43 2002 63 51 41 52 47 24 29 28 25 33 44 67 42 2003 62 55 50 48 37 31 34 30 32 30 45 64 43 MEAN 67 63 56 48 45 37 37 36 37 44 56 65 49 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 *** *** *** *** *** *** 62 62 73 72 69 70 *** 1975 53 64 60 50 58 42 34 38 54 64 65 57 53 1976 62 57 70 62 66 47 41 38 51 64 67 70 58 1977 71 79 65 63 61 49 53 40 53 64 71 70 62 1978 75 74 63 51 50 47 32 32 30 46 69 73 54 1979 65 68 64 64 75 71 69 68 65 71 66 58 67 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 55 67 65 65 54 66 63 62 61 *** 64 70 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 69 74 60 35 50 30 23 25 28 47 79 78 50 1985 84 70 67 41 *** 20 27 22 21 38 56 81 *** 1986 66 64 48 50 38 41 30 36 28 45 64 66 48 1987 51 58 53 37 33 27 26 28 33 55 51 63 43 1988 73 67 49 49 36 38 36 42 33 52 68 76 52 1989 76 77 63 36 34 25 29 29 39 51 65 68 49 1990 79 66 57 50 36 28 32 34 33 53 55 71 50 1991 75 60 64 40 38 36 35 37 38 54 66 80 52 1992 76 71 *** 52 57 40 33 *** 34 44 69 71 *** 1993 75 74 57 49 48 33 36 30 32 54 84 92 55 1994 80 64 53 41 39 37 34 30 36 57 75 80 52 1995 80 59 46 48 35 39 35 26 35 43 55 66 47 1996 69 57 55 44 37 32 35 24 24 45 61 67 46 1997 61 62 59 36 35 29 29 25 25 36 59 63 43 1998 72 60 44 39 38 27 31 22 23 34 54 67 43 1999 68 38 39 38 32 27 28 26 31 43 65 *** *** 2000 70 64 47 33 28 26 24 25 29 59 71 83 47 2001 75 62 45 35 28 23 31 24 28 50 73 73 46 2002 72 52 40 53 47 23 30 27 26 51 65 79 47 2003 76 63 54 49 38 37 34 29 34 47 56 71 49 MEAN 70 64 55 47 44 36 36 34 37 52 65 72 51 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 1974 *** *** *** *** *** *** 0 0 0 0 4 30 *** 1975 31 27 27 4 0 0 0 0 0 0 10 30 129 1976 29 27 12 0 0 0 0 0 0 0 8 15 91 1977 31 21 6 0 0 0 0 0 0 5 6 22 91 1978 25 15 8 0 0 0 0 0 0 0 25 26 99 1979 27 23 18 0 0 0 0 0 0 0 2 31 101 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 31 22 7 1 0 0 0 0 0 *** 2 7 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 26 12 2 0 0 0 0 0 0 1 3 29 73 1985 27 17 16 0 *** 0 0 0 0 1 0 22 *** 1986 30 17 15 0 0 0 0 0 0 0 9 28 99 1987 24 13 11 2 0 0 0 0 0 0 8 19 77 1988 29 26 10 2 0 0 0 0 0 0 11 14 92 1989 31 28 4 0 0 0 0 0 0 0 4 22 89 1990 28 24 10 1 0 0 0 0 0 0 5 17 85 1991 29 23 6 0 0 0 0 0 0 0 7 22 87 1992 28 24 *** 0 0 0 0 *** 0 0 5 14 *** 1993 30 21 14 1 0 0 0 0 0 0 10 20 96 1994 21 21 5 0 0 0 0 0 0 0 4 25 76 1995 21 14 8 0 0 0 0 0 0 0 11 28 82 1996 23 14 7 1 0 0 0 0 0 0 8 10 63 1997 25 24 19 4 0 0 0 0 0 0 5 21 98 1998 29 25 10 1 0 0 0 0 0 0 0 13 78 1999 20 17 12 1 0 0 0 0 0 0 8 *** *** 2000 23 24 14 0 0 0 0 0 0 0 5 18 84 2001 26 16 3 0 0 0 0 0 0 0 9 10 64 2002 25 16 8 0 0 0 0 0 0 0 5 20 74 2003 24 17 8 1 0 0 0 0 0 0 9 16 75 MEAN 27 20 10 1 0 0 0 0 0 0 7 20 85 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 1974 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1975 0 0 0 0 0 0 0 3 0 0 0 0 3 1976 0 0 0 0 0 0 0 1 0 0 0 0 1 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 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 0 0 0 0 0 0 0 0 0 *** 0 0 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 0 0 0 0 0 1 0 0 0 0 0 0 1 1985 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 1 1 0 0 0 0 2 1990 0 0 0 0 0 0 1 0 0 0 0 0 1 1991 0 0 0 0 0 0 0 2 0 0 0 0 2 1992 0 0 *** 0 0 0 0 *** 0 0 0 0 *** 1993 0 0 0 0 0 0 1 0 0 0 0 0 1 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 2 1 0 0 0 0 3 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 2 0 0 0 0 0 2 1999 0 0 0 0 0 0 1 3 0 0 0 *** *** 2000 0 0 0 0 0 0 3 1 0 0 0 0 4 2001 0 0 0 0 0 0 2 0 0 0 0 0 2 2002 0 0 0 0 0 0 0 0 0 1 0 0 1 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 20 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 1974 *** *** *** *** *** *** 0 0 0 0 0 3 *** 1975 9 5 3 0 0 0 0 0 0 0 1 9 27 1976 6 10 6 0 0 0 0 0 0 0 0 0 22 1977 22 3 0 0 0 0 0 0 0 0 0 7 32 1978 4 0 0 0 0 0 0 0 0 0 0 0 4 1979 3 *** *** *** 0 0 0 0 0 0 0 0 *** 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 2 0 0 0 0 0 0 0 0 *** 0 0 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 1 0 0 0 0 0 0 0 0 0 1 22 24 1985 17 10 13 0 *** 0 0 0 0 0 0 13 *** 1986 8 0 0 0 0 0 0 0 0 0 0 10 18 1987 0 0 0 0 0 0 0 0 0 0 0 5 5 1988 17 15 0 0 0 0 0 0 0 0 1 7 40 1989 31 26 2 0 0 0 0 0 0 0 0 2 61 1990 17 12 3 0 0 0 0 0 0 0 0 9 41 1991 13 12 3 0 0 0 0 0 0 0 0 13 41 1992 22 12 *** 0 0 0 0 *** 0 0 2 6 *** 1993 21 9 2 0 0 0 0 0 0 0 5 8 45 1994 12 6 0 0 0 0 0 0 0 0 0 14 32 1995 4 1 0 0 0 0 0 0 0 0 0 4 9 1996 12 5 2 0 0 0 0 0 0 0 0 0 19 1997 16 13 6 0 0 0 0 0 0 0 0 3 38 1998 21 13 0 0 0 0 0 0 0 0 0 0 34 1999 0 2 0 0 0 0 0 0 0 0 2 *** *** 2000 10 2 1 0 0 0 0 0 0 0 0 1 14 2001 11 1 0 0 0 0 0 0 0 0 3 1 16 2002 13 1 0 0 0 0 0 0 0 0 0 19 33 2003 11 5 2 0 0 0 0 0 0 0 0 4 22 MEAN 12 7 2 0 0 0 0 0 0 0 1 6 28 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 1974 *** *** *** *** *** *** 12 11 0 0 0 0 *** 1975 0 0 0 0 0 13 27 21 7 0 0 0 68 1976 0 0 0 0 0 4 14 29 7 0 0 0 54 1977 0 0 0 0 0 7 19 24 6 0 0 0 56 1978 0 0 0 0 0 4 24 24 14 0 0 0 66 1979 0 *** *** *** 0 0 21 30 24 1 0 0 *** 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 0 0 0 0 0 0 24 20 12 *** 0 0 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 0 0 0 0 0 8 30 11 2 0 0 0 51 1985 0 0 0 0 *** 10 18 16 9 0 0 0 *** 1986 0 0 0 0 0 3 22 19 11 0 0 0 55 1987 0 0 0 0 0 10 23 21 1 0 0 0 55 1988 0 0 0 0 0 4 12 2 3 0 0 0 21 1989 0 0 0 0 0 12 30 25 9 0 0 0 76 1990 0 0 0 0 1 10 22 21 4 0 0 0 58 1991 0 0 0 0 0 11 24 23 6 0 0 0 64 1992 0 0 *** 0 0 2 23 *** 4 0 0 0 *** 1993 0 0 0 0 0 6 19 19 9 0 0 0 53 1994 0 0 0 0 0 5 14 18 0 0 0 0 37 1995 0 0 0 0 0 5 20 30 11 0 0 0 66 1996 0 0 0 0 0 5 25 27 7 0 0 0 64 1997 0 0 0 0 0 9 19 24 2 0 0 0 54 1998 0 0 0 0 0 18 22 25 6 0 0 0 71 1999 0 0 0 0 2 11 19 27 8 0 0 *** *** 2000 0 0 0 0 0 18 28 25 5 0 0 0 76 2001 0 0 0 0 0 16 17 24 4 0 0 0 61 2002 0 0 0 0 0 9 26 22 12 0 0 0 69 2003 0 0 0 0 0 8 19 25 7 0 0 0 59 MEAN 0 0 0 0 0 8 21 22 7 0 0 0 58 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 1974 *** *** *** *** *** *** 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 1 0 0 0 0 0 1 1979 0 *** *** *** 0 0 0 0 0 0 0 0 *** 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 0 0 0 0 0 0 0 0 0 *** 0 0 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 0 0 0 0 0 0 0 0 0 0 0 0 0 1985 0 0 0 0 *** 0 0 0 0 0 0 0 *** 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 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 *** 0 0 0 0 *** 0 0 0 0 *** 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 *** *** 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 1974 *** *** *** *** *** *** 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 *** 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 0 0 0 0 0 0 0 0 0 *** 0 0 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 0 0 0 0 0 0 0 0 0 0 0 0 0 1985 0 0 0 0 *** 0 0 0 0 0 0 0 *** 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 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 *** 0 0 0 0 *** 0 0 0 0 *** 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 *** *** 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 0 0 0 0 0 0 0 0 0 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 KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 -------------- 1974 *** *** *** *** *** *** 0 0 0 1 8 31 *** 10 20 12 31 1975 31 28 28 7 0 0 0 0 0 3 26 31 154 10 28 4 24 1976 31 28 22 0 0 0 0 0 0 1 24 28 134 10 31 3 28 1977 31 28 20 1 0 0 0 0 0 13 27 28 148 10 19 4 17 1978 30 26 21 9 0 0 0 0 0 2 29 30 147 10 30 4 27 1979 30 25 23 0 0 0 0 0 0 0 10 31 119 11 18 3 29 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1981 31 23 12 4 0 0 0 0 0 *** 6 19 *** 11 5 4 12 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1984 30 15 11 8 1 0 0 0 0 6 16 31 118 10 19 5 1 1985 30 24 23 5 *** 0 0 0 0 5 11 30 *** 10 23 4 26 1986 30 27 29 2 0 0 0 0 0 0 22 31 141 11 8 4 22 1987 31 26 27 13 0 0 0 0 0 6 26 27 156 10 10 4 24 1988 31 27 29 12 0 0 0 0 0 3 19 30 151 10 22 4 12 1989 31 28 22 0 0 0 0 0 0 1 16 29 127 10 25 3 31 1990 31 26 27 12 2 0 0 0 0 2 18 27 145 10 17 5 7 1991 31 26 17 4 0 0 0 0 0 0 21 28 127 11 7 4 14 1992 31 29 *** 12 5 0 0 *** 0 7 22 28 *** 10 8 5 5 1993 30 28 30 9 0 0 0 0 0 3 23 30 153 10 8 4 24 1994 30 27 21 1 0 0 0 0 0 0 15 29 123 11 1 4 4 1995 31 25 25 5 1 0 0 0 0 12 22 31 152 10 5 5 9 1996 31 26 27 8 0 0 0 0 0 3 24 18 137 10 29 4 28 1997 29 28 30 8 0 0 0 0 0 1 22 29 147 10 30 4 21 1998 31 26 22 6 1 0 0 0 0 4 14 20 124 10 12 5 4 1999 29 23 27 7 0 0 0 0 0 6 26 *** *** 10 13 4 19 2000 30 29 25 1 0 0 0 0 0 2 21 29 137 10 29 4 1 2001 30 28 15 1 0 0 0 0 0 7 19 28 128 10 20 4 14 2002 29 24 20 3 0 0 0 0 0 1 20 29 126 10 23 4 24 2003 29 26 23 8 2 0 0 0 0 1 20 26 135 10 31 5 9 MEAN 30 26 23 6 0 0 0 0 0 3 20 28 136 10 5 5 9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 ****** ****** ****** ****** ****** ****** 22.1 21.7 16.8 13.2 7.7 -2.1 ****** 1975 -4.6 -2.0 2.1 13.3 15.7 22.3 25.9 23.9 18.6 10.9 4.1 -4.8 10.5 1976 -2.4 -4.9 1.0 9.6 14.3 21.2 23.7 25.1 18.3 11.4 4.9 1.7 10.3 1977 -7.7 0.8 6.0 10.2 14.0 20.8 22.5 23.9 19.2 8.9 4.3 -2.0 10.1 1978 -2.0 0.9 5.8 9.8 14.3 18.1 23.7 23.8 20.1 12.7 0.2 -0.3 10.6 1979 -1.8 -0.1 2.8 13.5 14.1 18.5 23.8 23.8 23.5 14.0 10.0 0.5 11.9 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 -2.5 1.3 5.2 8.6 12.7 17.9 24.1 22.8 21.6 ****** 8.0 3.2 ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 -1.1 -1.9 5.7 10.9 12.1 21.1 25.7 22.5 19.4 11.2 4.4 -4.9 10.4 1985 -3.7 -2.5 -1.0 10.8 ****** 22.0 23.4 22.9 20.1 10.0 6.3 -2.6 ****** 1986 -4.4 0.4 2.5 9.7 13.0 17.4 23.6 24.9 20.5 11.8 3.7 -3.5 10.0 1987 1.1 1.8 2.8 8.9 17.8 22.2 25.3 23.2 17.9 8.0 4.1 -0.4 11.1 1988 -4.9 -3.1 3.6 9.1 15.5 19.8 22.9 21.3 19.1 13.0 4.1 -0.7 10.0 1989 -9.6 -9.2 3.6 13.4 16.5 22.5 26.2 24.5 18.6 12.8 6.0 0.4 10.5 1990 -5.8 -2.1 3.1 9.3 16.2 22.2 24.8 23.0 20.2 11.5 6.6 -0.4 10.7 1991 -3.8 -2.5 3.7 11.3 13.9 20.4 23.9 24.2 19.1 12.5 4.9 -2.8 10.4 1992 -6.8 -3.1 ****** 7.9 11.3 18.7 23.5 ****** 17.9 11.4 4.4 -0.9 ****** 1993 -6.0 -3.3 1.6 9.0 13.9 19.5 23.4 22.7 19.3 10.9 1.0 -1.4 9.2 1994 -2.7 -1.5 5.0 12.1 14.8 19.7 23.0 23.3 17.6 12.3 5.4 -3.3 10.5 1995 -0.1 1.8 5.9 10.0 16.6 20.0 23.9 25.7 19.4 11.1 5.1 -1.7 11.5 1996 -2.5 1.1 3.3 9.1 17.2 20.6 25.1 25.0 20.2 12.8 5.0 4.1 11.7 1997 -1.9 -4.0 0.2 9.8 16.0 21.5 24.3 25.7 18.2 13.6 5.5 0.4 10.8 1998 -5.0 -4.0 4.7 11.3 16.0 23.5 24.5 25.7 20.5 13.5 8.4 3.2 11.9 1999 -0.2 2.0 4.9 10.3 16.1 22.3 23.7 26.0 19.1 12.9 3.7 ****** ****** 2000 -2.0 -1.3 3.6 13.2 17.1 21.8 26.9 24.8 19.9 10.7 4.3 0.6 11.6 2001 -2.1 1.2 7.9 12.7 16.2 22.5 24.3 25.4 20.5 12.1 4.0 1.6 12.2 2002 -2.6 1.2 6.6 9.2 13.7 21.3 24.6 24.2 21.4 14.4 5.9 -4.6 11.3 2003 -1.5 0.5 3.2 9.7 15.5 20.5 24.4 25.4 19.7 15.0 5.3 0.2 11.5 MEAN -3.3 -1.3 3.8 10.5 15.0 20.7 24.2 24.1 19.5 12.0 5.1 -0.8 10.8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 ****** ****** ****** ****** ****** ****** 14.5 15.4 11.6 8.0 1.9 -7.3 ****** 1975 -11.9 -7.4 -5.0 3.4 8.8 10.8 11.3 9.3 8.4 4.5 -3.2 -11.5 1.5 1976 -8.7 -11.5 -3.9 3.7 8.8 11.0 11.9 10.5 8.1 4.3 -1.1 -3.6 2.5 1977 -12.2 -2.5 0.5 4.4 7.5 10.6 12.1 11.4 8.8 1.6 -0.1 -6.8 2.9 1978 -6.0 -3.1 -0.6 1.0 5.2 7.9 8.1 8.5 4.4 2.0 -5.5 -5.5 1.4 1979 ****** -4.9 -1.5 7.1 9.0 12.9 17.7 17.1 16.5 7.9 3.2 ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 -11.9 -4.9 -0.5 2.2 4.1 10.5 16.1 14.9 13.4 ****** 1.7 -2.5 ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 -5.5 -9.1 -1.4 -1.8 2.2 4.4 4.6 5.1 3.7 -0.8 1.0 -8.2 -0.5 1985 -6.0 -7.5 -5.9 0.1 ****** 3.2 7.6 4.1 1.7 -1.0 -0.9 -5.5 ****** 1986 -9.4 -5.6 -5.2 1.8 2.4 7.0 8.8 9.9 4.1 3.2 -1.8 -9.2 0.5 1987 -6.8 -4.7 -4.8 -2.3 3.6 5.5 8.6 7.8 5.0 0.7 -4.4 -6.4 0.2 1988 -9.2 -8.3 -4.5 -0.2 3.7 7.1 10.1 10.5 6.1 3.9 -2.6 -4.8 1.0 1989 -13.0 -13.2 -1.9 1.5 3.4 6.0 9.9 9.0 7.2 3.0 0.2 -4.8 0.6 1990 -9.1 -7.1 -3.8 1.0 3.3 6.6 9.4 9.9 5.2 3.4 -1.7 -5.3 1.0 1991 -7.5 -8.5 -2.3 0.5 2.4 7.3 9.9 10.8 6.0 3.8 -1.1 -6.3 1.3 1992 -10.7 -7.3 ****** 0.6 4.6 7.8 9.4 ****** 4.7 0.2 -1.6 -5.5 ****** 1993 -10.0 -7.4 -5.4 -0.2 4.5 6.8 9.6 8.1 5.2 0.7 -1.5 -2.7 0.6 1994 -5.7 -7.0 -2.2 2.1 4.2 7.2 9.8 9.1 4.8 4.1 0.9 -6.6 1.7 1995 -3.5 -4.0 -2.5 1.4 3.9 8.4 11.5 10.6 6.5 0.8 -3.2 -6.8 1.9 1996 -7.5 -5.3 -3.6 -1.1 5.3 6.4 10.7 7.2 4.4 1.9 -1.3 -1.7 1.3 1997 -7.6 -9.2 -5.9 -1.9 3.8 6.7 10.0 9.0 2.7 2.1 -0.8 -5.3 0.3 1998 -9.1 -10.1 -4.6 0.5 5.1 7.7 9.0 7.8 4.4 0.2 -0.3 -3.5 0.6 1999 -5.5 -7.5 -5.7 -1.1 2.9 5.3 7.5 8.2 5.2 0.9 -2.4 ****** ****** 2000 -6.9 -6.3 -4.8 1.2 3.0 5.9 8.3 7.3 5.0 2.4 -0.8 -2.5 1.0 2001 -5.5 -4.5 -1.5 0.2 1.7 5.0 9.4 8.1 5.2 2.1 -1.2 -2.6 1.4 2002 -7.2 -5.8 -4.2 1.9 4.4 4.2 9.3 8.2 4.9 3.5 -1.6 -8.2 0.8 2003 -5.7 -5.5 -4.4 1.0 4.1 7.5 11.0 9.7 5.8 3.0 -2.7 -4.5 1.6 MEAN -8.1 -6.9 -3.4 1.0 4.5 7.3 10.2 9.5 6.3 2.6 -1.2 -5.5 1.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 ****** ****** ****** ****** ****** ****** 12.65 13.52 10.45 8.34 5.57 2.99 ****** 1975 2.15 2.96 3.44 6.12 8.67 9.81 10.19 9.02 8.40 6.50 3.97 2.05 6.10 1976 2.71 2.17 3.75 6.09 8.60 9.90 10.59 9.61 8.30 6.42 4.42 3.65 6.35 1977 2.01 4.05 4.96 6.40 7.86 9.69 10.85 10.24 8.72 5.40 4.69 3.06 6.49 1978 3.16 3.79 4.48 5.02 6.75 8.06 8.24 8.38 6.42 5.38 3.32 3.19 5.52 1979 ****** 3.31 4.24 7.78 8.69 11.21 15.48 14.95 14.35 8.36 6.11 ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 2.18 3.41 4.64 5.52 6.29 9.52 14.14 13.11 11.75 ****** 5.25 3.90 ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 3.24 2.56 4.22 4.17 5.48 6.43 6.60 6.97 6.15 4.44 5.06 2.59 4.83 1985 3.11 2.84 3.60 4.73 ****** 6.01 8.00 6.36 5.36 4.36 4.41 3.19 ****** 1986 2.49 3.12 3.25 5.40 5.55 7.66 8.80 9.19 6.33 5.89 4.15 2.42 5.35 1987 2.83 3.32 3.29 4.00 6.16 6.90 8.62 8.04 6.72 4.96 3.45 3.09 5.11 1988 2.43 2.60 3.40 4.75 6.13 7.70 9.34 9.61 7.09 6.11 4.00 3.43 5.55 1989 1.79 1.82 4.10 5.15 5.88 7.11 9.15 8.76 7.70 5.75 4.76 3.27 5.44 1990 2.47 2.77 3.62 5.00 6.02 7.35 8.92 9.12 6.84 5.88 4.11 3.32 5.45 1991 2.69 2.58 4.04 4.82 5.59 7.75 9.14 9.81 7.13 6.09 4.35 3.01 5.58 1992 2.17 2.77 ****** 4.86 6.50 8.03 8.98 ****** 6.45 4.71 4.23 3.25 ****** 1993 2.26 2.79 3.17 4.66 6.38 7.49 9.09 8.19 6.73 4.93 4.28 3.83 5.32 1994 3.14 2.79 3.98 5.48 6.28 7.69 9.12 8.69 6.55 6.32 5.00 3.01 5.67 1995 3.64 3.50 3.89 5.23 6.18 8.29 10.16 9.69 7.37 4.89 3.81 2.83 5.79 1996 2.77 3.19 3.59 4.42 6.76 7.33 9.79 7.77 6.37 5.35 4.29 4.14 5.48 1997 2.78 2.51 3.10 4.16 6.15 7.61 9.38 8.90 5.76 5.42 4.38 3.24 5.28 1998 2.41 2.32 3.40 4.87 6.74 7.99 8.80 8.13 6.44 4.73 4.56 3.62 5.33 1999 3.15 2.73 3.11 4.43 5.78 6.80 7.78 8.44 6.75 5.01 3.96 ****** ****** 2000 2.86 2.99 3.37 5.16 5.75 7.11 8.40 7.95 6.72 5.54 4.41 3.87 5.34 2001 3.14 3.33 4.17 4.73 5.29 6.71 8.88 8.27 6.72 5.46 4.47 3.92 5.42 2002 2.81 3.13 3.52 5.33 6.33 6.31 8.86 8.31 6.60 5.95 4.16 2.77 5.34 2003 3.09 3.10 3.49 5.12 6.34 7.92 9.98 9.10 6.97 5.77 3.91 3.42 5.68 MEAN 2.70 2.94 3.75 5.13 6.49 7.86 9.63 9.24 7.45 5.69 4.41 3.24 5.71 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 ****** ****** ****** ****** ****** ****** 16.88 18.01 13.96 11.15 7.45 4.00 ****** 1975 2.87 3.95 4.60 8.20 11.60 13.15 13.68 12.12 11.26 8.70 5.31 2.73 8.18 1976 3.62 2.90 5.01 8.15 11.50 13.26 14.19 12.91 11.12 8.60 5.91 4.88 8.50 1977 2.68 5.41 6.63 8.56 10.52 12.98 14.53 13.74 11.69 7.24 6.27 4.08 8.69 1978 4.22 5.06 6.00 6.73 9.06 10.81 11.09 11.27 8.63 7.22 4.44 4.26 7.40 1979 ****** 4.43 5.68 10.41 11.61 14.96 20.59 19.90 19.11 11.17 8.18 ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 2.92 4.55 6.21 7.39 8.43 12.74 18.83 17.49 15.70 ****** 7.04 5.21 ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 4.33 3.42 5.65 5.60 7.34 8.66 8.91 9.38 8.27 5.96 6.76 3.45 6.48 1985 4.15 3.79 4.82 6.35 ****** 8.09 10.76 8.57 7.22 5.85 5.90 4.25 ****** 1986 3.33 4.17 4.35 7.24 7.45 10.27 11.82 12.35 8.52 7.89 5.56 3.23 7.18 1987 3.78 4.44 4.41 5.37 8.28 9.29 11.59 10.82 9.03 6.64 4.62 4.13 6.87 1988 3.24 3.47 4.55 6.37 8.23 10.34 12.54 12.88 9.53 8.20 5.35 4.58 7.44 1989 2.38 2.42 5.49 6.92 7.90 9.57 12.30 11.78 10.34 7.72 6.37 4.37 7.30 1990 3.29 3.71 4.85 6.70 8.09 9.89 12.00 12.26 9.20 7.89 5.50 4.43 7.32 1991 3.60 3.45 5.41 6.47 7.51 10.42 12.29 13.17 9.58 8.17 5.82 4.02 7.49 1992 2.89 3.69 ****** 6.51 8.70 10.78 12.06 ****** 8.68 6.33 5.66 4.35 ****** 1993 3.01 3.72 4.24 6.25 8.56 10.06 12.21 11.01 9.05 6.62 5.71 5.10 7.13 1994 4.19 3.73 5.33 7.35 8.43 10.33 12.25 11.68 8.80 8.47 6.68 4.02 7.61 1995 4.85 4.68 5.21 7.01 8.31 11.13 13.63 13.01 9.90 6.56 5.11 3.78 7.77 1996 3.69 4.27 4.81 5.92 9.07 9.85 13.15 10.46 8.57 7.18 5.75 5.54 7.36 1997 3.71 3.36 4.14 5.59 8.25 10.22 12.59 11.96 7.75 7.27 5.86 4.33 7.09 1998 3.22 3.10 4.55 6.53 9.05 10.75 11.83 10.95 8.66 6.36 6.12 4.85 7.16 1999 4.21 3.65 4.17 5.95 7.76 9.15 10.48 11.36 9.08 6.74 5.30 ****** ****** 2000 3.83 3.99 4.52 6.93 7.73 9.56 11.31 10.69 9.03 7.43 5.90 5.17 7.17 2001 4.19 4.45 5.59 6.35 7.11 9.03 11.94 11.13 9.05 7.33 5.98 5.24 7.28 2002 3.75 4.19 4.72 7.14 8.49 8.49 11.91 11.17 8.88 7.99 5.57 3.69 7.17 2003 4.13 4.14 4.67 6.86 8.51 10.63 13.39 12.23 9.37 7.75 5.24 4.57 7.62 MEAN 3.60 3.93 5.02 6.88 8.70 10.55 12.92 12.40 10.00 7.63 5.90 4.33 7.66 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 ****** ****** ****** ****** ****** ****** 11.03 9.16 5.98 4.88 3.80 1.88 ****** 1975 1.81 1.75 3.41 8.26 7.26 15.12 21.22 19.74 11.61 5.04 3.52 1.81 8.38 1976 1.82 1.64 2.09 4.24 5.15 12.75 16.11 20.56 11.25 5.77 3.38 2.38 7.26 1977 0.93 1.51 3.22 4.29 6.12 12.70 13.85 17.92 11.89 5.60 2.37 1.58 6.83 1978 1.29 1.68 3.70 5.94 8.37 11.16 20.08 20.01 16.39 8.27 2.26 1.93 8.42 1979 ****** 2.03 3.33 5.61 4.63 6.67 9.50 10.25 10.33 5.57 4.61 ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 2.41 2.40 3.13 4.37 6.87 7.95 12.00 11.09 10.69 ****** 3.99 2.63 ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 1.88 1.31 3.87 7.95 7.43 17.80 25.58 19.71 15.67 8.82 2.06 0.91 9.42 1985 0.78 1.71 2.01 7.34 ****** 19.94 19.45 21.07 18.08 7.23 4.04 1.03 ****** 1986 1.53 2.35 3.41 5.35 8.62 11.12 19.44 20.37 17.38 6.63 2.76 1.85 8.40 1987 3.22 2.81 3.33 7.01 13.65 19.49 22.89 19.92 12.99 4.87 4.09 2.24 9.71 1988 1.24 1.70 3.75 5.88 10.64 13.88 16.65 13.44 13.90 7.64 3.41 1.71 7.82 1989 0.76 0.86 2.90 9.45 11.98 19.18 23.16 20.82 13.27 8.45 3.49 2.17 9.71 1990 0.91 1.80 3.33 5.77 11.44 18.35 21.02 17.54 16.33 6.61 5.00 2.22 9.19 1991 1.23 2.08 3.14 7.91 9.41 14.94 18.99 18.96 14.20 7.02 3.25 1.20 8.53 1992 1.09 1.44 ****** 4.83 5.62 11.90 18.82 ****** 13.42 8.20 3.24 1.65 ****** 1993 1.17 1.32 3.18 6.02 8.21 14.21 18.24 18.32 15.36 7.45 1.24 0.54 7.94 1994 1.01 2.04 3.89 7.74 9.75 14.37 17.29 18.45 12.64 6.61 2.68 1.15 8.14 1995 1.44 2.57 4.68 5.94 11.76 13.62 17.59 22.53 15.13 7.74 4.49 1.92 9.12 1996 1.64 2.81 3.33 6.35 11.90 16.00 20.62 23.80 17.16 8.70 3.42 2.95 9.89 1997 2.14 1.72 2.56 7.82 11.27 17.10 19.66 23.43 14.95 9.58 3.65 2.32 9.68 1998 1.18 1.83 4.59 8.08 10.52 20.44 20.84 24.52 17.50 10.57 5.63 3.40 10.76 1999 1.98 3.89 5.05 7.52 12.73 19.49 20.65 24.46 14.95 9.74 3.28 ****** ****** 2000 1.84 1.98 4.03 9.30 13.30 18.78 26.17 22.64 15.78 6.13 2.73 1.38 10.34 2001 1.30 2.52 5.94 9.45 12.65 20.32 20.24 23.71 16.94 8.04 2.87 1.97 10.49 2002 1.62 2.96 5.80 5.00 8.61 18.94 20.92 21.28 19.08 9.98 4.49 1.05 9.98 2003 1.66 2.44 3.46 6.25 10.53 15.51 19.04 22.41 15.67 10.62 4.34 1.91 9.49 MEAN 1.52 2.04 3.65 6.68 9.54 15.45 18.93 19.47 14.39 7.53 3.49 1.83 8.71 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 *** *** *** *** *** *** 64 69 73 71 69 69 *** 1975 58 68 61 56 66 51 42 43 56 66 62 61 58 1976 63 61 71 68 71 54 50 43 55 65 67 69 61 1977 71 79 69 68 66 55 55 49 54 63 74 71 65 1978 75 75 66 57 58 54 40 41 40 52 66 68 58 1979 *** 69 66 66 72 70 69 66 65 67 63 *** *** 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 51 64 68 65 56 63 61 61 60 *** 65 67 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 68 70 63 45 55 38 30 39 41 51 78 79 55 1985 85 70 72 53 *** 35 41 35 35 52 63 81 *** 1986 69 67 61 61 53 55 43 41 39 59 69 66 57 1987 58 64 60 49 43 37 39 41 46 63 56 66 52 1988 73 68 58 55 50 48 48 54 47 58 66 76 58 1989 77 75 71 49 46 38 38 41 53 56 69 70 57 1990 79 70 64 60 47 40 40 47 40 62 59 72 57 1991 77 65 69 53 51 47 44 46 46 58 67 77 58 1992 75 74 *** 65 68 54 45 *** 46 50 68 72 *** 1993 75 75 63 58 57 49 46 44 45 55 84 91 62 1994 81 68 64 56 54 50 46 44 46 63 76 80 61 1995 79 68 59 61 48 53 50 44 49 54 59 70 58 1996 70 65 64 54 52 44 44 37 42 52 66 69 55 1997 68 69 67 49 50 45 47 41 44 52 66 69 56 1998 75 65 55 54 54 42 42 38 42 45 60 65 53 1999 70 53 52 51 49 38 39 38 46 50 68 *** *** 2000 71 72 61 49 45 42 36 39 43 62 73 81 56 2001 79 68 57 48 44 38 43 38 42 56 73 75 55 2002 73 63 54 65 61 39 43 42 39 54 63 78 56 2003 75 67 62 61 53 50 48 42 46 50 60 73 57 MEAN 72 68 63 57 55 47 46 45 47 57 67 73 58 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 *** *** *** *** *** *** 76 80 83 79 79 79 *** 1975 71 77 69 71 80 67 59 60 71 76 77 74 71 1976 74 72 81 79 81 70 65 61 73 79 78 80 74 1977 80 84 78 79 77 73 72 69 70 76 81 80 77 1978 81 82 77 70 76 71 58 61 61 68 75 75 71 1979 *** 76 76 74 77 76 74 70 68 73 70 *** *** 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 64 74 78 73 66 69 67 65 64 *** 71 74 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 81 86 77 65 72 55 47 61 65 70 91 87 71 1985 91 80 84 77 *** 59 62 56 59 79 81 87 *** 1986 80 78 78 79 74 73 62 55 60 82 82 77 73 1987 75 78 74 68 64 55 60 62 70 78 73 75 69 1988 80 78 77 71 73 67 69 73 71 76 82 87 75 1989 84 83 87 74 71 59 56 61 77 73 84 83 74 1990 90 82 81 81 66 63 57 68 59 86 79 87 75 1991 85 80 84 74 78 69 63 65 66 77 81 86 76 1992 84 87 *** 93 91 82 67 *** 70 70 82 82 *** 1993 83 85 80 80 80 76 67 68 69 75 94 96 79 1994 89 82 87 80 83 75 67 65 65 87 93 91 80 1995 91 87 83 86 76 82 74 74 75 83 80 85 81 1996 80 81 86 77 79 67 64 60 72 75 83 81 75 1997 83 85 84 72 78 74 76 69 78 85 89 87 80 1998 86 81 76 80 81 69 65 64 72 70 82 79 75 1999 84 78 77 78 80 60 58 60 74 70 87 *** *** 2000 82 89 88 78 78 68 57 64 69 81 91 93 78 2001 91 88 81 76 73 64 65 62 70 79 90 90 77 2002 85 86 80 91 88 71 68 70 67 78 79 87 79 2003 87 86 83 87 82 82 77 68 73 74 79 84 80 MEAN 82 82 80 77 77 69 65 65 69 77 82 83 76 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1974 *** *** *** *** *** *** 53 57 63 64 58 58 *** 1975 46 58 53 43 55 39 31 32 42 55 47 48 46 1976 52 50 62 58 61 42 39 30 39 52 55 57 50 1977 62 74 60 59 57 41 39 36 41 51 66 62 54 1978 68 69 56 47 45 43 28 28 26 38 58 62 47 1979 *** 61 57 59 66 64 64 62 62 62 57 *** *** 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 38 54 58 58 48 54 56 57 55 *** 58 58 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 54 50 51 32 42 26 18 24 25 34 65 69 41 1985 78 61 61 38 *** 19 26 21 20 34 50 75 *** 1986 59 56 44 44 36 38 28 32 24 43 59 56 43 1987 44 51 49 35 27 25 24 28 32 51 42 57 39 1988 65 59 44 42 32 33 35 41 32 45 49 64 45 1989 69 65 58 33 31 24 27 28 37 42 57 58 44 1990 70 61 51 45 34 27 29 33 29 45 42 59 44 1991 68 54 58 39 33 33 32 35 32 46 55 68 46 1992 65 63 *** 46 50 35 31 *** 31 35 55 63 *** 1993 66 65 51 42 40 32 32 28 28 36 75 84 48 1994 73 56 47 39 37 34 34 30 34 43 60 69 46 1995 69 55 41 42 30 35 34 26 32 36 43 58 42 1996 62 53 48 38 33 30 31 23 24 36 53 57 41 1997 56 57 53 33 32 25 28 25 24 32 51 55 39 1998 64 52 40 36 36 25 27 21 23 30 42 51 37 1999 58 36 35 33 28 23 27 23 28 36 52 *** *** 2000 61 59 44 31 25 25 23 24 26 45 56 69 41 2001 68 53 41 30 27 22 30 23 25 38 54 62 39 2002 61 47 36 46 43 21 28 25 23 32 44 67 39 2003 62 51 46 42 34 29 32 27 30 29 44 60 41 MEAN 62 57 50 42 39 32 33 32 33 42 54 62 45 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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 1974 *** *** *** *** *** *** 2 1 0 0 2 3 *** 1975 1 1 3 4 4 0 0 0 1 2 1 0 17 1976 1 1 3 4 8 0 0 0 0 3 1 0 21 1977 2 0 2 5 5 0 0 0 0 2 1 5 22 1978 2 0 0 2 6 2 0 0 0 0 0 1 13 1979 0 3 2 1 2 3 0 0 0 1 0 0 12 1980 *** *** *** *** *** *** *** *** *** *** *** *** *** 1981 4 1 2 5 4 3 1 0 0 *** 2 1 *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 0 1 3 1 4 0 0 0 0 2 4 0 15 1985 2 2 1 4 *** 0 0 0 0 1 1 3 *** 1986 1 1 2 3 5 7 1 0 1 2 2 2 27 1987 0 3 3 2 4 0 0 0 0 5 1 12 30 1988 1 3 3 2 3 4 0 3 0 1 2 2 24 1989 2 0 3 1 1 0 0 0 0 4 3 0 14 1990 0 0 3 4 0 0 0 0 0 1 0 2 10 1991 0 1 4 4 5 0 0 0 0 0 1 4 19 1992 3 3 *** 4 3 0 1 *** 0 0 6 0 *** 1993 3 1 2 7 3 2 1 0 0 2 2 1 24 1994 4 0 6 3 5 0 0 0 1 1 4 2 26 1995 1 1 4 5 1 2 0 0 1 0 2 0 17 1996 0 1 1 4 1 0 3 0 2 1 4 2 19 1997 3 0 1 2 3 0 1 0 1 0 2 1 14 1998 4 2 2 3 5 0 1 0 0 0 2 1 20 1999 1 2 1 5 3 1 1 1 0 4 2 *** *** 2000 2 1 2 3 1 0 0 0 0 3 2 1 15 2001 0 1 2 1 2 0 1 0 0 1 3 3 14 2002 3 1 3 9 11 0 0 0 0 0 2 2 31 2003 1 0 1 8 1 1 0 1 0 0 0 1 14 MEAN 2 1 2 4 4 1 0 0 0 1 2 2 19 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. HIGHEST AND LOWEST LIMITS FOR 30 YEARS DURING 1974-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 7.0 7.2 10.0 19.0 17.4 22.2 27.0 25.0 23.0 22.0 14.0 13.0 1 YEAR - DAY 1979- 4 1996- 9 1985-21 1993-19 1977-14 1984-30 1974-22 1999- 3 1981- 3 2002- 3 1974- 3 1998-11 LOW. DRY 03 -20.8 -23.0 -24.0 -11.4 -1.0 3.0 9.0 8.4 1.0 -6.0 -14.0 -22.1 2 YEAR - DAY 1977-16 1989- 9 1985- 3 1993-23 1992- 5 1986-22 1992-12 1987-30 1992-28 1977-23 2001-19 1994- 6 HIG. WET 03 4.0 5.4 7.4 11.0 14.2 16.6 19.8 20.4 17.0 18.8 10.4 6.5 3 YEAR - DAY 1979- 4 2002-12 2001-23 2003- 5 1975-30 1975-29 1979-17 1974- 5 1979- 1 1999-18 1974- 3 1990- 5 LOW. WET 03 -21.2 -23.0 -24.3 -11.5 -1.5 2.5 4.0 4.2 0.7 -7.0 -14.2 -22.0 4 YEAR - DAY 1977-16 1989- 9 1985- 3 1993-23 2003- 8 1986-22 1986- 3 1984-27 1992-28 1977-23 1988-15 1994- 6 HIG. DRY 09 12.4 15.0 20.2 25.0 30.0 35.0 37.0 38.0 33.4 27.8 20.6 19.8 5 YEAR - DAY 1987-31 1977-28 2001-29 1975- 7 1999-30 1975-30 1975-11 2003-10 2003- 5 2002- 1 1974-10 1998-10 LOW. DRY 09 -13.4 -11.0 -9.6 -1.2 2.0 9.0 11.0 14.0 11.0 0.0 -5.4 -10.0 6 YEAR - DAY 1986-25 1989- 9 1985- 4 1997-11 1999-20 1994-28 1974- 7 1988- 4 1995-29 1987-27 1975-30 1977-28 HIG. WET 09 6.6 11.0 12.0 21.6 20.4 23.0 28.0 26.4 23.4 18.6 15.8 9.0 7 YEAR - DAY 1987-29 1977-28 1977- 1 1979- 4 1975-30 1975-30 1979-17 1974- 5 1979-12 1974- 2 1974-10 1998-10 LOW. WET 09 -14.2 -12.0 -10.8 -3.6 1.0 7.3 9.7 11.0 7.4 -2.4 -7.4 -11.4 8 YEAR - DAY 1986-25 1985-23 1985- 2 1997-11 1984- 1 1994-28 1999-14 1975-29 1997-14 1977-23 1975-30 1977-28 HIG. DRY 15 10.0 9.8 20.4 26.0 31.0 34.4 35.8 36.2 33.6 25.0 16.5 17.2 9 YEAR - DAY 1987-31 1999-26 2001-28 1997-26 1999-30 1998-23 1998-17 2003-12 1998- 1 1995- 2 1998- 4 1998-10 LOW. DRY 15 -17.0 -16.0 -12.0 -2.4 2.4 7.4 12.0 13.6 8.8 -4.4 -12.0 -17.5 10 YEAR - DAY 1989- 9 1989- 3 1985- 2 1981- 1 1992- 3 2003- 5 1974- 7 1975-17 1995-20 1977-22 1975-29 2002-27 HIG. WET 15 6.4 5.6 10.0 19.6 17.6 20.0 25.6 24.0 24.8 17.0 12.0 8.2 11 YEAR - DAY 1978-21 1975-23 1977-17 2000-28 1987-10 1975-30 1979-16 1974-15 1990-12 1979- 1 1979- 4 1998- 9 LOW. WET 15 -17.1 -16.3 -12.9 -3.6 1.4 7.2 9.6 8.6 6.6 -5.0 -13.6 -18.0 12 YEAR - DAY 1989- 9 1989- 3 1985- 2 1981- 1 1992- 1 2003- 5 1986-25 1987-29 1994-30 1977-22 1975-29 2002-27 HIG. MIN. 5.0 5.0 9.0 17.0 16.0 21.5 23.0 24.0 19.0 21.0 11.5 12.0 13 YEAR - DAY 1997- 7 2002-22 2001- 3 1994-24 1994-27 1984-30 1989-21 1991- 2 1995- 3 2002- 3 1989-29 1998-11 LOW. MIN. -21.0 -24.0 -24.0 -12.0 -2.0 1.5 4.5 3.0 1.0 -9.0 -15.5 -22.1 14 YEAR - DAY 1977-16 1997- 1 1985- 3 1993-23 1992- 5 1984-16 1988- 3 1984-27 1992-28 1977-24 1975-30 1994- 6 HIG. MAX. 12.8 17.0 21.6 27.0 32.0 37.0 40.0 39.7 35.6 30.0 21.7 20.0 15 YEAR - DAY 2002- 3 1977-28 2001-28 1975- 7 1999-30 1975-29 1978-17 1999-12 1998- 1 1979- 1 1974-10 1998-10 LOW. MAX. -11.5 -8.0 -9.0 1.0 6.0 11.0 16.0 16.6 13.5 1.6 -4.0 -8.6 16 YEAR - DAY 1989-15 1985-22 1985- 2 1990- 2 1984- 5 1994-28 1974- 7 1987-28 1995-20 1987-27 1975-30 1994- 6 HIG. PPTN 12.0 22.9 25.0 30.0 33.0 26.5 25.0 25.5 16.0 40.0 23.0 23.0 17 YEAR - DAY 2002-23 1975-21 1991-10 1977-15 1994-13 1995- 3 1998-18 2003-22 1975-30 1989-30 1994- 5 1991- 9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 30 YEARS DURING 1974-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 20.8 17.0 19.2 22.4 18.2 21.0 19.6 21.8 22.0 21.2 22.4 21.0 18 YEAR - DAY 1975- 5 1977-28 2002- 9 1975- 4 2002-28 2000-18 1986-10 2001-14 2002-29 2003-10 1978- 6 1974- 8 DRY 15 - DRY 09 17.0 11.8 9.4 14.6 13.4 15.6 13.8 16.0 13.2 12.4 17.0 18.0 19 YEAR - DAY 1975- 2 1976-11 1986- 1 1993-22 1987-15 2003- 5 1998-18 1976-29 1977-11 2003- 9 1975-29 1974-24 DRY 15 - DRY 03 16.0 18.4 17.6 19.4 19.4 19.8 20.0 22.0 21.2 20.0 19.0 13.4 20 YEAR - DAY 1988-30 1997-15 2001-28 1975- 4 1997-12 1993-23 1986-31 2001-14 1997-11 1998-12 1978- 7 1976- 2 WET 09 - WET 03 18.4 15.2 17.2 17.6 12.6 11.2 17.0 15.8 14.0 15.4 19.2 19.0 21 YEAR - DAY 1975- 5 1976- 2 1976- 3 1979- 4 1978- 4 1986- 5 1987-12 1974-16 2002-29 1974-20 1978- 7 1974-23 WET 15 - WET 09 16.2 11.4 7.8 9.0 6.0 10.0 10.6 7.4 9.4 8.2 15.6 18.0 22 YEAR - DAY 1975- 2 1976- 2 1976- 4 1979- 4 1981-10 2000-18 1987-12 1976-11 1987-25 1987-25 1975-29 1974-24 WET 15 - WET 03 14.2 14.6 14.9 13.8 12.4 12.4 16.6 13.6 18.0 13.8 19.2 11.8 23 YEAR - DAY 1976- 7 1997-15 1985-11 2000-28 1987-28 1993-29 1986- 3 1974-15 1990-12 1998-12 1978- 7 1976- 2 DAY BY DAY DRY 03 18.6 16.4 14.0 19.4 14.0 11.8 9.0 11.0 11.0 17.0 17.0 15.4 24 YEAR - DAY 1988-31 1985-22 2001- 4 1993-23 1991- 3 1984-12 1998- 7 1996-22 1992-26 1999-19 1995-12 1978-17 DAY BY DAY WET 03 17.5 16.3 13.3 14.7 8.6 8.6 7.4 9.0 9.2 17.3 12.6 13.8 25 YEAR - DAY 2000-22 1985-22 1997- 8 1993-23 1991- 3 1984-12 2002-13 1995-14 1974-25 1999-19 1995-12 1978-17 DAY BY DAY DRY 09 12.6 12.2 16.0 18.4 18.0 11.6 12.4 10.6 11.0 15.1 16.0 15.6 26 YEAR - DAY 1975- 5 2002-16 1975-15 1993-20 1999-20 1995-22 1999-15 1986- 2 1986-28 1992-15 2001-18 1974-23 DAY BY DAY WET 09 11.8 9.5 11.8 11.6 9.6 5.8 11.0 8.6 6.0 8.6 9.6 14.6 27 YEAR - DAY 1975- 5 1998-15 1975-15 2003-28 1999-20 2003-25 1987-12 1974- 4 1987-14 1987-26 2001-18 1974-23 DAY BY DAY DRY 15 11.0 13.2 15.8 14.4 18.0 13.4 16.8 12.0 13.0 14.1 14.6 12.8 28 YEAR - DAY 1985-16 1998-15 1975-15 1993-20 1999-20 1984-10 1998-18 1976-11 1995-20 1990-14 2001-18 2000-22 DAY BY DAY WET 15 10.8 13.7 13.2 8.8 7.2 7.0 8.6 7.6 10.0 9.0 11.4 12.6 29 YEAR - DAY 1976-17 1998-15 1975-15 2000-29 1977-27 1988-20 1986-31 1989-30 1990-13 1977-22 2001-18 1975-23 DAY BY DAY MIN. 18.6 18.2 14.0 18.0 10.0 9.0 11.5 11.4 8.6 13.0 15.0 14.0 30 YEAR - DAY 2000-22 1988- 1 2001- 4 1993-23 1984- 1 2000- 5 1984-26 1984-16 1985-29 1992-27 1995-12 1978-17 DAY BY DAY MAX. 16.0 14.0 12.0 13.0 15.0 9.0 14.0 10.0 10.5 13.5 15.7 16.0 31 YEAR - DAY 1984-31 1984- 1 1990-16 2003- 9 1999-20 1986-23 1974- 8 1976-12 1995-20 1984-19 2001-18 1974-23 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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.***** ***** ***** ***** ***** ***** 21.2 21.2 16.4 13.1 7.8 -0.5 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 14.1 13.5 9.0 4.1 1.0 -8.7 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 28.3 28.8 23.7 22.2 14.6 7.8 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** 14.2 15.3 14.7 18.1 13.6 16.5 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** 10.73 10.64 8.34 5.64 4.74 1.90 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** 13.91 16.61 12.27 10.72 6.64 4.51 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** 13.30 13.32 10.74 8.67 5.32 2.56 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 9.0 9.5 5.0 -1.5 -9.5 -17.0 ****** DAY ** ** ** ** ** ** 7 26 28 20 27 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 36.0 36.0 28.0 25.5 21.7 16.5 ****** DAY ** ** ** ** ** ** 3 14 29 2 10 8 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** 9.0 9.5 1.2 0.0 12.0 12.0 ****** DAY ** ** ** ** ** ** 7 29 12 ** 24 6 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** 16.0 10.8 1.2 0.0 28.0 31.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** 32.2 67.8 NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** 3 2 1 0 5 6 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** 3 2 1 0 5 6 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** 0 0 0 0 1 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** 73 78 82 75 74 70 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** 57 66 63 67 62 66 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** 62 62 73 72 69 70 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 0 4 30 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 0 0 3 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 12 11 0 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** 0 0 0 1 8 31 *** DATE OF START AND END FREEZING START = 20 OCT. END = 31 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -3.5 -2.2 0.0 11.4 14.3 20.3 24.1 22.9 18.4 10.6 3.7 -4.5 9.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.3 -8.5 -8.3 1.6 7.5 11.8 15.1 14.6 10.4 3.1 -3.8 -11.2 1.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.4 4.2 8.3 21.2 21.2 28.8 33.1 31.2 26.3 18.2 11.1 2.1 17.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.7 12.7 16.6 19.6 13.7 17.0 18.0 16.6 15.9 15.1 14.9 13.3 15.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.32 1.93 2.33 4.87 7.68 9.10 9.62 8.74 7.70 5.24 3.04 1.84 5.28 MEAN OF MIXING RATIO AT 09 GMT. 3.55 4.17 4.36 7.32 10.28 11.22 11.64 9.68 9.32 8.03 4.74 2.50 7.23 MEAN OF MIXING RATIO AT 15 GMT. 1.58 2.77 3.62 6.15 8.05 9.10 9.31 8.66 8.17 6.24 4.12 1.80 5.80 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.5 -17.6 -20.0 -6.0 1.0 8.0 11.0 7.5 6.5 -1.5 -15.5 -17.0 -20.0 DAY 3 12 17 1 2 14 2 18 14 31 30 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 11.5 18.0 27.0 28.5 37.0 38.5 38.5 34.0 24.0 18.0 10.0 38.5 DAY 8 23 23 7 30 29 11 4 5 9 26 22 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.3 22.9 15.6 16.5 15.0 1.0 0.0 0.0 16.0 21.0 12.0 3.2 22.9 DAY 29 21 15 23 6 1 ** ** 30 15 28 2 MONTHLY TOTAL PRECIPITATION IN MM. 12.3 35.2 44.2 56.5 62.3 2.5 0.0 0.0 17.6 43.5 13.5 10.2 297.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 30.8 40.7 5.9 22.6 NO. OF DAYS WITH PRECIPITATION. 5 5 7 5 12 3 0 0 3 5 2 4 51 NO. OF DAYS PRECIPITATION EQUAL 5 5 7 5 12 2 0 0 2 5 2 4 49 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 2 3 1 0 0 0 1 2 1 0 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 54 66 63 70 77 67 59 59 70 74 67 68 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 73 59 47 63 43 35 34 44 61 52 58 53 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 53 64 60 50 58 42 34 38 54 64 65 57 53 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 27 27 4 0 0 0 0 0 0 10 30 129 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 9 5 3 0 0 0 0 0 0 0 1 9 27 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 13 27 21 7 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. 31 28 28 7 0 0 0 0 0 3 26 31 154 DATE OF START AND END FREEZING START = 28 OCT. END = 24 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -2.6 -4.7 0.7 9.0 13.4 19.0 21.5 24.0 17.7 11.6 5.2 2.3 9.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.9 -10.8 -4.3 3.4 7.6 11.3 13.4 14.5 9.2 3.6 -2.5 -3.5 2.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.6 1.4 5.7 14.7 19.2 26.7 29.7 33.5 26.2 19.6 12.8 8.2 16.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.5 12.2 10.0 11.3 11.6 15.4 16.3 19.0 17.0 16.0 15.3 11.7 14.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.90 1.53 3.01 5.25 7.52 9.63 10.39 9.56 7.98 5.27 3.39 2.97 5.70 MEAN OF MIXING RATIO AT 09 GMT. 3.73 3.06 4.49 7.18 9.86 10.95 11.94 10.37 9.12 7.67 5.60 4.49 7.37 MEAN OF MIXING RATIO AT 15 GMT. 2.50 1.93 3.74 5.84 8.43 9.11 9.43 8.91 7.79 6.32 4.26 3.49 5.98 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -17.0 -16.0 0.5 3.5 7.0 9.0 9.0 3.0 -2.0 -8.0 -8.5 -17.0 DAY 7 19 3 2 7 11 5 22 29 31 30 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.0 8.0 15.5 21.5 23.5 30.5 37.0 38.0 32.5 25.0 19.0 16.0 38.0 DAY 18 9 29 28 19 22 31 11 4 2 5 15 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.2 5.4 11.0 20.0 20.0 4.3 0.0 0.0 2.0 10.0 16.0 1.0 20.0 DAY 15 12 31 30 7 8 ** ** 26 21 25 25 MONTHLY TOTAL PRECIPITATION IN MM. 18.4 25.2 29.4 65.0 106.2 9.3 0.0 0.0 2.0 25.5 17.0 2.0 300.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 24.3 60.2 0.7 14.8 NO. OF DAYS WITH PRECIPITATION. 5 8 7 9 19 3 0 0 1 7 3 2 64 NO. OF DAYS PRECIPITATION EQUAL 5 7 7 9 16 3 0 0 1 6 1 2 57 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 2 4 0 0 0 0 1 1 0 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 57 58 72 78 80 69 65 60 72 78 76 74 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 68 72 64 67 46 43 31 42 54 57 63 56 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 62 57 70 62 66 47 41 38 51 64 67 70 58 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 27 12 0 0 0 0 0 0 0 8 15 91 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 6 10 6 0 0 0 0 0 0 0 0 0 22 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 14 29 7 0 0 0 54 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 22 0 0 0 0 0 0 1 24 28 134 DATE OF START AND END FREEZING START = 31 OCT. END = 28 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -7.4 1.2 5.5 9.9 13.6 19.5 21.9 22.5 18.8 8.9 4.9 -1.2 9.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -12.6 -5.2 -1.1 3.3 6.8 11.0 13.9 13.2 9.5 0.5 -2.4 -6.6 2.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. -2.3 7.6 12.1 16.5 20.5 27.9 29.9 31.7 28.1 17.3 12.2 4.2 17.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.3 12.8 13.2 13.2 13.7 16.9 16.0 18.5 18.6 16.8 14.6 10.8 14.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.47 2.78 3.85 5.18 6.73 9.38 9.94 9.46 7.24 4.19 3.46 2.50 5.51 MEAN OF MIXING RATIO AT 09 GMT. 2.61 5.57 6.09 7.72 9.15 10.69 11.64 11.95 10.46 6.61 6.01 3.68 7.68 MEAN OF MIXING RATIO AT 15 GMT. 1.94 3.81 4.94 6.29 7.66 8.99 10.98 9.32 8.45 5.41 4.61 2.99 6.28 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -21.0 -9.0 -6.5 -1.0 4.0 4.5 11.0 8.0 5.5 -9.0 -6.0 -17.0 -21.0 DAY 16 5 6 17 19 2 3 30 24 24 17 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 4.0 17.0 19.0 22.5 27.5 33.0 35.0 36.0 30.5 28.5 16.0 12.0 36.0 DAY 20 28 2 4 13 11 26 10 7 3 7 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.6 0.0 9.0 30.0 20.5 3.5 0.0 2.5 1.5 10.4 6.0 12.6 30.0 DAY 21 ** 30 15 18 21 ** 6 3 22 12 22 MONTHLY TOTAL PRECIPITATION IN MM. 18.0 0.0 39.5 82.4 67.7 5.5 0.0 7.0 1.5 27.9 6.0 45.9 301.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 19.1 51.6 2.8 26.5 NO. OF DAYS WITH PRECIPITATION. 4 0 11 10 11 2 0 4 1 5 1 9 58 NO. OF DAYS PRECIPITATION EQUAL 4 0 11 10 11 2 0 3 1 5 1 9 57 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 4 1 0 0 0 0 1 0 1 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 65 78 74 76 77 72 69 69 66 72 79 70 72 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 78 80 68 65 61 45 43 39 43 54 72 73 60 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 79 65 63 61 49 53 40 53 64 71 70 62 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 21 6 0 0 0 0 0 0 5 6 22 91 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 22 3 0 0 0 0 0 0 0 0 0 7 32 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 19 24 6 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 20 1 0 0 0 0 0 13 27 28 148 DATE OF START AND END FREEZING START = 19 OCT. END = 17 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -1.7 1.4 5.7 9.0 13.4 16.8 22.4 22.8 18.8 13.2 0.7 0.4 10.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.1 -4.2 -1.5 1.8 5.5 8.8 12.9 13.7 8.6 3.8 -6.4 -5.7 2.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.7 7.0 13.0 16.2 21.2 24.8 32.0 31.8 29.1 22.7 7.8 6.5 18.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.8 11.2 14.5 14.4 15.7 16.1 19.1 18.1 20.5 18.9 14.2 12.2 15.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.35 3.01 3.51 4.24 6.02 7.44 7.78 8.41 6.33 4.99 2.16 2.25 4.87 MEAN OF MIXING RATIO AT 09 GMT. 3.85 4.46 5.24 5.88 7.57 8.80 8.85 8.77 6.84 5.83 4.27 3.98 6.20 MEAN OF MIXING RATIO AT 15 GMT. 3.29 3.96 4.70 4.93 6.67 7.94 8.09 7.97 6.07 5.31 3.54 3.32 5.48 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -11.0 -5.5 -3.0 1.0 3.0 7.0 10.0 4.0 -1.5 -10.0 -10.5 -12.5 DAY 1 26 18 14 3 2 1 21 25 30 6 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 14.0 18.5 21.0 27.0 31.0 40.0 38.0 32.0 27.0 16.0 10.0 40.0 DAY 21 16 30 24 26 9 17 1 7 6 6 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.6 3.8 3.5 8.0 16.0 18.0 0.0 0.0 0.0 2.0 1.6 5.0 18.0 DAY 26 3 31 14 6 25 ** ** ** 20 11 13 MONTHLY TOTAL PRECIPITATION IN MM. 19.9 6.0 7.9 23.5 71.4 41.5 0.0 0.0 0.0 6.0 4.1 20.5 200.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 16.8 67.9 0.0 15.2 NO. OF DAYS WITH PRECIPITATION. 4 2 5 6 11 6 0 0 0 5 5 9 53 NO. OF DAYS PRECIPITATION EQUAL 2 2 4 6 10 6 0 0 0 4 1 7 42 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 0 2 2 0 0 0 0 0 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 71 77 74 68 76 71 58 61 61 68 62 64 68 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 78 75 60 51 48 45 30 30 28 40 67 69 52 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 74 63 51 50 47 32 32 30 46 69 73 54 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 15 8 0 0 0 0 0 0 0 25 26 99 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 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 0 4 24 24 14 0 0 0 66 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 26 21 9 0 0 0 0 0 2 29 30 147 DATE OF START AND END FREEZING START = 30 OCT. END = 27 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -1.3 ***** ***** ***** 13.7 18.9 23.7 23.5 22.7 13.2 8.5 -0.0 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -7.7 -4.7 -4.1 5.6 8.4 13.2 16.0 15.0 14.4 4.9 1.1 -8.6 4.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.0 ***** ***** ***** 18.9 24.5 31.4 31.9 30.9 21.5 16.0 8.5 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.7 ***** ***** ***** 10.5 11.3 15.4 16.9 16.5 16.6 14.9 17.1 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 2.70 3.24 5.77 7.09 10.14 12.73 10.93 10.90 5.30 3.95 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 3.41 4.03 4.40 9.40 9.72 12.08 17.81 17.69 17.03 10.29 7.71 4.14 9.81 MEAN OF MIXING RATIO AT 15 GMT. 2.81 3.06 4.23 8.18 9.25 11.40 15.90 16.23 15.10 9.47 6.67 3.09 8.78 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -7.5 -14.5 1.0 5.5 10.0 13.5 12.5 13.0 2.0 -4.5 -12.5 -15.0 DAY 11 19 1 2 8 11 4 7 20 12 30 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.5 ***** ***** ***** 25.0 28.0 37.0 35.0 35.0 30.0 20.0 12.0 ****** DAY 3 ** ** ** 21 28 16 8 10 1 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 2.6 9.0 9.0 13.0 7.0 7.0 0.0 0.0 0.0 5.0 2.0 4.0 13.0 DAY 8 8 30 8 28 6 ** ** ** 27 2 28 MONTHLY TOTAL PRECIPITATION IN MM. 4.2 25.2 36.4 30.0 30.0 28.5 0.0 0.0 0.0 24.0 6.0 16.0 200.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 32.9 44.2 0.0 23.0 NO. OF DAYS WITH PRECIPITATION. 3 5 12 10 11 9 0 0 0 12 4 5 71 NO. OF DAYS PRECIPITATION EQUAL 1 4 12 10 11 9 0 0 0 12 4 5 68 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 1 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 68 73 69 69 74 72 65 65 66 60 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 70 62 65 71 66 66 65 65 64 64 56 65 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 65 68 64 64 75 71 69 68 65 71 66 58 67 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 23 18 0 0 0 0 0 0 0 2 31 101 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 *** *** *** 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** 0 0 21 30 24 1 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** 0 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** *** 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 25 23 0 0 0 0 0 0 0 10 31 119 DATE OF START AND END FREEZING START = 18 NOV. END = 29 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -2.0 1.5 5.8 8.7 12.5 17.8 23.8 21.9 21.1 ***** 7.8 3.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -9.5 -4.6 -0.3 2.3 5.3 12.0 15.3 13.6 13.2 ***** 2.2 -1.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.5 7.6 12.0 15.1 19.8 23.6 32.3 30.3 29.0 ***** 13.4 8.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.0 12.2 12.3 12.9 14.5 11.6 17.0 16.7 15.8 ***** 11.2 9.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.13 2.50 3.91 4.46 5.41 8.94 11.28 9.87 9.39 ***** 4.52 3.41 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.17 4.07 5.38 6.41 7.33 9.90 17.56 16.82 14.43 ***** 6.02 4.29 ***** MEAN OF MIXING RATIO AT 15 GMT. 2.25 3.65 4.62 5.69 6.12 9.70 13.57 12.64 11.42 ***** 5.22 3.99 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.0 -10.0 -8.5 -6.5 1.5 10.0 11.5 11.0 10.5 ***** -4.5 -6.0 ****** DAY 14 2 3 1 3 1 3 27 27 ** 6 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.5 11.0 16.0 23.5 26.0 25.5 36.5 35.0 32.0 ***** 19.0 11.0 ****** DAY 7 9 10 21 31 17 22 3 3 ** 2 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 5.0 5.0 11.0 10.0 10.0 5.0 4.0 0.0 ***** 8.5 5.4 ****** DAY 12 21 28 16 13 11 4 6 ** ** 5 19 MONTHLY TOTAL PRECIPITATION IN MM. 32.0 10.2 34.4 69.5 49.0 38.0 10.0 4.0 0.0 ***** 24.5 5.4 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.7 56.5 5.1 10.8 NO. OF DAYS WITH PRECIPITATION. 6 4 12 13 9 8 3 1 0 *** 6 1 *** NO. OF DAYS PRECIPITATION EQUAL 6 4 12 13 9 8 3 1 0 *** 6 1 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 2 1 1 0 0 0 *** 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 39 62 75 71 65 68 62 60 59 *** 70 67 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 64 62 60 50 54 59 61 59 *** 60 63 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 55 67 65 65 54 66 63 62 61 *** 64 70 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 22 7 1 0 0 0 0 0 *** 2 7 *** 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 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 0 0 24 20 12 *** 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. 31 23 12 4 0 0 0 0 0 *** 6 19 *** DATE OF START AND END FREEZING START = 5 NOV. END = 12 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -1.3 -0.0 5.5 9.3 10.9 18.0 23.5 20.4 18.5 11.2 4.5 -5.1 9.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.4 -5.2 0.4 2.6 5.0 9.2 14.8 11.6 10.1 3.8 0.2 -8.8 3.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.8 4.8 10.4 16.0 16.8 26.9 32.3 29.2 26.9 18.2 8.7 -1.3 16.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.2 10.0 10.0 13.4 11.8 17.7 17.5 17.6 16.8 14.4 8.5 7.5 12.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.05 1.89 4.12 4.34 5.58 6.80 7.33 7.62 6.57 4.35 4.53 2.24 4.78 MEAN OF MIXING RATIO AT 09 GMT. 4.17 3.78 4.23 4.33 5.36 6.44 6.25 7.39 6.11 4.25 5.28 2.98 5.05 MEAN OF MIXING RATIO AT 15 GMT. 3.16 2.72 4.25 3.84 5.48 6.05 6.23 5.90 5.76 4.79 5.17 2.55 4.66 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.5 -13.5 -6.0 -3.5 -1.5 1.5 7.5 3.0 7.5 -6.5 -6.2 -15.5 -18.5 DAY 31 2 15 6 1 16 30 27 14 20 14 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.5 8.5 16.0 21.5 24.0 34.0 34.5 35.5 32.0 27.6 12.5 3.5 35.5 DAY 30 11 11 8 26 30 6 21 4 1 2 14 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 6.5 20.0 5.0 16.6 1.0 2.0 0.0 0.6 16.5 14.8 2.0 20.0 DAY ** 15 11 16 11 1 5 ** 21 19 5 7 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 10.5 48.0 7.4 67.3 2.0 2.4 0.0 0.6 24.5 54.2 4.6 221.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 26.4 34.6 1.4 37.6 NO. OF DAYS WITH PRECIPITATION. 0 2 5 3 12 2 3 0 1 3 9 5 45 NO. OF DAYS PRECIPITATION EQUAL 0 2 4 3 10 2 1 0 0 3 7 2 34 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 3 0 3 0 0 0 0 1 3 0 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 58 60 72 64 71 54 47 61 65 70 89 81 66 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 74 80 57 37 44 29 21 30 28 35 69 78 49 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 74 60 35 50 30 23 25 28 47 79 78 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 12 2 0 0 0 0 0 0 1 3 29 73 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 0 0 0 0 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 1 22 24 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 30 11 2 0 0 0 51 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 11 8 1 0 0 0 0 6 16 31 118 DATE OF START AND END FREEZING START = 19 OCT. END = 1 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -3.7 -2.7 -1.4 10.0 ***** 20.0 22.3 22.0 19.2 9.6 6.4 -2.8 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -8.1 -7.1 -7.1 3.7 ***** 11.5 14.4 13.8 10.8 3.5 1.2 -6.8 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.7 1.8 4.3 16.3 ***** 28.7 30.3 30.2 27.7 15.9 11.5 1.2 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.8 8.9 11.4 12.6 ***** 17.2 15.9 16.4 16.9 12.4 10.3 8.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.64 2.53 2.98 4.74 ***** 7.01 8.44 7.07 5.72 4.68 4.18 2.58 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.50 3.09 3.94 4.89 ***** 6.33 8.37 6.45 5.45 4.38 4.92 3.70 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.21 2.91 3.89 4.56 ***** 4.68 7.19 5.56 4.90 4.01 4.12 3.28 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -21.5 -24.0 -0.5 ***** 8.4 10.4 10.6 3.0 -4.4 -3.6 -18.6 ****** DAY 7 23 3 7 ** 10 29 13 21 30 1 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 11.4 18.2 23.8 ***** 34.5 36.0 33.6 33.6 27.6 14.6 6.6 ****** DAY 12 15 21 20 ** 26 19 4 1 1 5 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.4 18.0 14.2 7.0 ***** 1.6 0.0 0.2 0.0 13.6 5.4 15.0 ****** DAY 16 2 26 4 ** 28 ** 5 ** 11 26 20 MONTHLY TOTAL PRECIPITATION IN MM. 27.0 42.7 23.9 31.8 ***** 3.4 0.0 0.2 0.0 22.6 13.4 44.6 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.7 16.8 0.1 38.5 NO. OF DAYS WITH PRECIPITATION. 10 11 7 10 *** 3 0 1 0 5 6 8 *** NO. OF DAYS PRECIPITATION EQUAL 7 8 5 8 *** 2 0 0 0 5 5 6 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 0 *** 0 0 0 0 1 0 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 77 83 75 *** 59 62 56 59 79 80 83 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 83 65 65 45 *** 26 34 26 26 39 54 79 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 84 70 67 41 *** 20 27 22 21 38 56 81 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 17 16 0 *** 0 0 0 0 1 0 22 *** 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 17 10 13 0 *** 0 0 0 0 0 0 13 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 10 18 16 9 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. 30 24 23 5 *** 0 0 0 0 5 11 30 *** DATE OF START AND END FREEZING START = 23 OCT. END = 26 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -4.5 0.2 1.9 9.3 12.3 17.0 23.3 22.6 19.2 11.9 3.5 -3.6 9.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -11.1 -4.7 -3.7 2.7 4.2 8.5 14.5 14.4 10.0 5.1 -1.1 -9.4 2.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.2 5.0 7.4 15.9 20.3 25.5 32.0 30.8 28.5 18.7 8.2 2.3 16.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.3 9.7 11.1 13.2 16.1 17.0 17.5 16.4 18.5 13.6 9.3 11.7 13.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.05 2.85 3.07 4.64 5.08 6.61 7.99 8.75 6.41 5.78 3.73 1.98 4.91 MEAN OF MIXING RATIO AT 09 GMT. 2.83 3.31 3.64 6.19 6.61 9.10 10.52 9.46 6.75 6.86 4.76 2.73 6.06 MEAN OF MIXING RATIO AT 15 GMT. 2.60 3.20 3.04 5.39 4.97 7.27 7.89 9.35 5.82 5.02 3.97 2.54 5.09 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.8 -10.4 -8.4 -0.6 0.4 2.6 11.0 8.6 7.0 1.0 -6.2 -15.6 -20.8 DAY 21 3 3 21 6 22 27 5 26 25 15 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.6 11.0 17.4 21.0 27.4 30.2 36.2 35.4 31.6 22.6 17.6 10.0 36.2 DAY 3 27 30 15 30 29 8 1 4 2 2 26 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 10.0 13.0 8.6 12.2 17.4 5.0 3.5 8.0 14.0 10.6 6.2 17.4 DAY 20 10 31 11 9 18 25 22 30 10 29 27 MONTHLY TOTAL PRECIPITATION IN MM. 13.8 20.2 41.4 38.2 52.8 79.8 7.0 5.5 12.4 38.4 37.4 19.8 366.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 20.6 46.6 6.8 26.1 NO. OF DAYS WITH PRECIPITATION. 5 5 9 11 12 11 3 3 4 8 9 8 88 NO. OF DAYS PRECIPITATION EQUAL 4 4 7 11 12 11 3 2 3 8 8 6 79 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 2 0 1 4 0 0 0 2 1 0 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 76 76 76 74 73 60 54 60 82 81 74 72 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 59 59 58 46 50 38 33 29 50 63 59 51 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 66 64 48 50 38 41 30 36 28 45 64 66 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 17 15 0 0 0 0 0 0 0 9 28 99 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 10 18 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 22 19 11 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 27 29 2 0 0 0 0 0 0 22 31 141 DATE OF START AND END FREEZING START = 8 NOV. END = 22 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. 0.6 1.6 2.0 8.1 16.6 20.9 23.5 21.7 17.4 8.1 3.6 -0.7 10.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.8 -3.6 -3.2 0.7 7.8 12.4 15.1 13.2 9.0 2.7 -3.0 -5.3 3.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.0 6.7 7.3 15.4 25.5 29.5 31.8 30.1 25.8 13.4 10.3 3.8 17.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.8 10.3 10.5 14.7 17.7 17.1 16.7 16.9 16.8 10.7 13.3 9.1 13.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.54 3.02 2.99 3.75 5.71 6.27 8.29 7.75 6.54 4.69 2.97 2.80 4.78 MEAN OF MIXING RATIO AT 09 GMT. 3.13 3.64 3.62 4.54 6.27 7.52 9.58 9.15 7.75 5.68 4.06 3.60 5.71 MEAN OF MIXING RATIO AT 15 GMT. 2.82 3.28 3.27 3.71 6.48 6.90 7.97 7.23 5.86 4.49 3.31 2.86 4.85 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.0 -8.0 -7.8 -6.8 2.2 7.4 9.8 7.2 4.2 -2.4 -10.0 -19.6 -19.6 DAY 14 22 15 21 4 3 4 30 22 27 30 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.6 12.6 12.6 25.0 29.6 34.6 36.6 35.2 30.2 26.6 16.2 11.2 36.6 DAY 31 25 9 30 9 27 15 12 5 2 6 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 0.0 10.0 10.0 15.0 13.0 1.0 0.0 0.0 1.0 19.0 7.4 16.4 19.0 DAY ** 21 26 13 18 18 ** ** 14 20 7 18 MONTHLY TOTAL PRECIPITATION IN MM. 0.0 30.0 35.8 41.6 42.8 1.0 0.0 0.0 1.4 75.6 11.6 113.0 352.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 18.7 24.2 0.4 56.7 NO. OF DAYS WITH PRECIPITATION. 0 6 12 7 5 1 0 0 2 11 2 15 61 NO. OF DAYS PRECIPITATION EQUAL 0 6 12 7 5 1 0 0 1 10 2 14 58 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 2 3 0 0 0 0 3 0 5 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 75 76 73 68 63 55 59 62 70 77 72 72 69 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 49 58 54 43 33 29 31 34 37 57 46 63 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 51 58 53 37 33 27 26 28 33 55 51 63 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 13 11 2 0 0 0 0 0 0 8 19 77 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 5 5 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 10 23 21 1 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. 31 26 27 13 0 0 0 0 0 6 26 27 156 DATE OF START AND END FREEZING START = 10 OCT. END = 24 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -5.4 -3.6 3.3 8.4 13.7 16.4 19.1 20.0 17.4 11.8 3.9 -0.3 8.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.2 -8.6 -2.9 1.9 5.5 6.7 8.9 13.8 9.6 5.0 -1.8 -5.0 1.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.6 1.3 9.6 15.0 21.9 26.2 29.3 26.3 25.3 18.5 9.6 4.5 15.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.6 9.9 12.5 13.1 16.4 19.5 20.4 12.5 15.7 13.5 11.4 9.5 13.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.08 2.31 3.15 4.20 6.14 7.83 9.71 9.56 7.12 5.50 3.56 3.10 5.36 MEAN OF MIXING RATIO AT 09 GMT. 2.59 2.69 3.78 4.96 6.60 7.88 9.42 9.74 7.44 6.36 4.00 3.69 5.76 MEAN OF MIXING RATIO AT 15 GMT. 2.61 2.78 3.27 5.09 5.64 7.39 8.91 9.53 6.72 6.47 4.42 3.48 5.53 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.6 -16.2 -10.0 -4.6 2.2 3.5 4.5 8.0 7.0 -1.0 -13.0 -20.0 -20.0 DAY 1 6 6 1 3 26 3 30 9 22 15 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.6 10.6 15.6 22.0 29.0 32.0 36.0 31.0 31.0 24.0 19.0 12.5 36.0 DAY 31 29 19 17 28 13 31 1 8 3 3 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.2 7.2 12.6 7.8 12.0 10.5 4.5 13.5 0.0 6.5 19.0 10.0 19.0 DAY 28 4 1 28 4 19 1 23 ** 16 14 26 MONTHLY TOTAL PRECIPITATION IN MM. 27.2 29.2 43.1 40.8 44.5 46.3 8.8 32.0 0.0 18.2 48.0 26.2 364.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.3 36.1 11.2 25.4 NO. OF DAYS WITH PRECIPITATION. 13 10 9 12 9 10 4 5 0 7 9 7 95 NO. OF DAYS PRECIPITATION EQUAL 11 10 9 12 9 10 3 3 0 6 9 6 88 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 3 1 0 2 0 0 2 1 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 76 75 70 73 66 69 73 71 75 78 85 74 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 63 51 45 40 40 39 46 37 46 51 65 49 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 67 49 49 36 38 36 42 33 52 68 76 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 26 10 2 0 0 0 0 0 0 11 14 92 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 17 15 0 0 0 0 0 0 0 0 1 7 40 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 12 2 3 0 0 0 21 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 29 12 0 0 0 0 0 3 19 30 151 DATE OF START AND END FREEZING START = 22 OCT. END = 12 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -9.6 -9.0 3.8 11.9 14.8 20.2 25.1 23.1 17.3 12.5 6.2 0.6 9.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -14.9 -14.5 -0.9 4.1 6.9 11.9 17.4 15.2 8.9 5.9 1.3 -4.5 3.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. -4.3 -3.4 8.5 19.7 22.7 28.5 32.7 31.0 25.8 19.1 11.2 5.7 16.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.6 11.1 9.4 15.6 15.8 16.6 15.3 15.8 16.9 13.2 10.0 10.2 13.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.53 1.40 3.83 5.04 6.26 7.60 9.22 8.59 6.86 5.54 4.38 2.97 5.27 MEAN OF MIXING RATIO AT 09 GMT. 2.08 2.07 4.33 5.43 6.01 7.67 9.46 9.59 8.78 6.13 5.06 3.54 5.85 MEAN OF MIXING RATIO AT 15 GMT. 1.75 1.99 4.14 4.98 5.37 6.05 8.76 8.11 7.46 5.61 4.84 3.30 5.20 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.5 -23.0 -8.0 0.5 2.0 7.0 13.0 12.0 4.0 0.0 -9.0 -9.0 -23.0 DAY 5 9 30 6 8 2 7 27 20 25 21 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 0.0 8.0 16.5 24.5 29.0 34.0 37.0 35.0 33.0 27.0 17.0 11.0 37.0 DAY 2 28 25 21 24 29 20 7 3 6 28 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 0.0 14.0 6.4 16.0 2.0 3.0 3.0 4.0 40.0 13.5 3.0 40.0 DAY 3 ** 9 13 5 12 27 18 19 30 12 5 MONTHLY TOTAL PRECIPITATION IN MM. 19.0 0.0 42.0 13.7 26.0 2.5 3.0 3.0 7.0 101.0 30.5 4.5 252.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 24.2 16.7 5.2 53.9 NO. OF DAYS WITH PRECIPITATION. 4 0 8 6 7 2 1 1 2 8 6 3 48 NO. OF DAYS PRECIPITATION EQUAL 4 0 8 5 5 1 1 1 2 8 6 2 43 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 1 0 0 0 0 3 1 0 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 81 87 74 70 58 56 61 77 74 83 83 74 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 66 63 37 35 31 31 33 42 45 58 59 48 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 77 63 36 34 25 29 29 39 51 65 68 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 28 4 0 0 0 0 0 0 0 4 22 89 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 31 26 2 0 0 0 0 0 0 0 0 2 61 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 12 30 25 9 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 28 22 0 0 0 0 0 0 1 16 29 127 DATE OF START AND END FREEZING START = 25 OCT. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. MEAN AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -5.6 -1.9 2.7 8.2 14.0 19.8 23.7 22.4 19.1 11.5 7.0 0.0 10.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.8 -6.4 -2.7 2.4 6.4 11.0 15.9 14.5 9.8 3.9 -0.0 -5.2 3.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.4 2.5 8.0 14.0 21.7 28.6 31.4 30.3 28.4 19.1 14.1 5.3 16.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.4 8.9 10.7 11.6 15.3 17.6 15.5 15.8 18.6 15.2 14.1 10.5 13.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.08 2.51 3.42 5.16 6.31 7.79 8.50 8.74 5.67 5.37 3.84 3.05 5.20 MEAN OF MIXING RATIO AT 09 GMT. 2.77 2.98 3.71 5.04 6.01 7.23 9.31 9.68 7.28 6.20 4.28 3.51 5.67 MEAN OF MIXING RATIO AT 15 GMT. 2.55 2.83 3.74 4.79 5.75 7.03 8.96 8.95 7.58 6.08 4.19 3.38 5.49 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.0 -14.0 -12.0 -4.0 -1.0 8.0 11.0 11.0 7.0 0.0 -7.0 -19.0 -19.0 DAY 8 6 17 4 7 6 5 25 18 17 18 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 4.0 11.0 15.0 24.0 30.0 33.0 36.0 34.0 31.0 25.0 19.0 15.0 36.0 DAY 3 18 31 27 31 3 18 4 9 8 3 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.0 3.0 10.0 19.0 4.0 0.0 0.0 0.0 0.0 5.5 2.0 14.0 19.0 DAY 1 4 7 29 12 ** ** ** ** 1 13 22 MONTHLY TOTAL PRECIPITATION IN MM. 17.0 10.0 34.0 50.5 14.0 0.0 0.0 0.0 0.0 15.5 2.0 29.8 172.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 35.3 37.3 0.0 27.4 NO. OF DAYS WITH PRECIPITATION. 6 5 7 6 6 0 0 0 0 5 1 8 44 NO. OF DAYS PRECIPITATION EQUAL 6 5 7 6 6 0 0 0 0 5 1 8 44 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 3 0 0 0 0 0 0 0 1 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 81 80 78 66 63 57 68 58 86 79 85 74 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 64 56 52 38 30 33 38 31 46 42 59 47 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 66 57 50 36 28 32 34 33 53 55 71 50 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 24 10 1 0 0 0 0 0 0 5 17 85 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 17 12 3 0 0 0 0 0 0 0 0 9 41 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 10 22 21 4 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. 31 26 27 12 2 0 0 0 0 2 18 27 145 DATE OF START AND END FREEZING START = 17 OCT. END = 7 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -3.6 -2.7 3.5 10.5 13.0 19.7 23.2 24.0 18.5 12.6 5.5 -2.3 10.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.6 -8.2 -1.0 3.8 5.7 12.2 15.1 16.4 9.9 5.5 -0.4 -6.1 3.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.5 2.9 8.1 17.1 20.3 27.2 31.4 31.6 27.1 19.7 11.3 1.5 16.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.1 11.1 9.1 13.3 14.6 15.0 16.3 15.2 17.2 14.2 11.7 7.6 12.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.23 2.29 3.88 4.79 5.75 7.82 8.60 9.10 6.26 5.34 3.84 2.74 5.22 MEAN OF MIXING RATIO AT 09 GMT. 3.02 2.79 4.10 5.05 5.81 7.92 9.53 10.37 7.69 6.66 4.84 3.12 5.91 MEAN OF MIXING RATIO AT 15 GMT. 2.84 2.67 4.15 4.62 5.21 7.51 9.31 9.95 7.43 6.27 4.36 3.12 5.62 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.0 -17.0 -15.0 -2.0 2.0 6.0 11.0 12.0 5.0 2.0 -5.0 -13.0 -17.0 DAY 25 12 11 11 3 1 7 14 24 23 24 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 10.0 19.0 25.0 25.0 33.0 37.0 38.0 33.0 24.0 18.0 11.0 38.0 DAY 31 17 29 25 21 30 31 1 3 6 1 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 2.0 10.0 25.0 8.5 16.0 2.0 2.5 0.0 0.0 4.0 16.0 23.0 25.0 DAY 4 27 10 4 25 6 23 ** ** 15 4 9 MONTHLY TOTAL PRECIPITATION IN MM. 2.0 21.5 72.0 29.5 58.5 6.0 5.5 0.0 0.0 8.0 16.0 57.0 276.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 34.6 34.1 2.0 29.3 NO. OF DAYS WITH PRECIPITATION. 1 5 10 5 9 4 3 0 0 3 1 10 51 NO. OF DAYS PRECIPITATION EQUAL 1 5 10 5 9 4 3 0 0 3 1 10 51 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 3 0 2 0 0 0 0 0 1 1 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 85 79 83 73 77 69 63 65 65 76 81 84 75 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 57 59 44 39 36 34 37 35 46 56 68 48 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 60 64 40 38 36 35 37 38 54 66 80 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 23 6 0 0 0 0 0 0 0 7 22 87 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 13 12 3 0 0 0 0 0 0 0 0 13 41 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 11 24 23 6 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. 31 26 17 4 0 0 0 0 0 0 21 28 127 DATE OF START AND END FREEZING START = 7 NOV. END = 14 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -6.6 -3.4 ***** 7.5 10.9 17.9 22.7 ***** 17.0 11.0 4.7 -0.9 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -11.8 -8.3 ***** 1.7 5.5 10.8 14.9 ***** 9.1 2.7 -0.7 -5.0 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. -1.4 1.4 ***** 13.3 16.4 24.9 30.5 ***** 25.0 19.4 10.0 3.2 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.4 9.7 ***** 11.6 10.9 14.1 15.6 ***** 15.9 16.7 10.7 8.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.84 2.40 ***** 4.98 6.67 8.39 8.60 ***** 6.27 4.05 3.77 2.99 ***** MEAN OF MIXING RATIO AT 09 GMT. 2.45 2.99 ***** 4.93 6.51 8.24 9.57 ***** 6.84 5.07 4.59 3.47 ***** MEAN OF MIXING RATIO AT 15 GMT. 2.22 2.91 ***** 4.68 6.32 7.47 8.75 ***** 6.25 5.01 4.33 3.30 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.0 -18.0 ***** -3.0 -2.0 6.0 9.0 ***** 1.0 -2.0 -10.0 -15.0 ****** DAY 25 29 ** 3 5 5 12 ** 28 28 27 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.0 8.0 ***** 22.0 27.0 31.0 36.0 ***** 31.0 23.0 18.0 10.0 ****** DAY 20 19 ** 12 29 29 30 ** 3 4 1 14 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 6.0 ***** 15.0 10.0 3.0 6.5 ***** 0.0 0.0 19.5 4.0 ****** DAY 3 24 ** 30 12 21 9 ** ** ** 11 3 MONTHLY TOTAL PRECIPITATION IN MM. 24.5 26.0 ***** 49.8 53.0 14.0 6.5 ***** 0.0 0.0 71.2 12.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 19.6 45.4 2.5 32.4 NO. OF DAYS WITH PRECIPITATION. 6 8 *** 10 13 8 1 *** 0 0 8 5 *** NO. OF DAYS PRECIPITATION EQUAL 6 8 *** 9 12 8 1 *** 0 0 8 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 *** 1 2 0 0 *** 0 0 4 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 85 *** 93 91 82 66 *** 70 69 79 82 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 68 *** 52 56 42 35 *** 34 37 56 64 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 71 *** 52 57 40 33 *** 34 44 69 71 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 24 *** 0 0 0 0 *** 0 0 5 14 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 *** 0 0 0 0 *** 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 22 12 *** 0 0 0 0 *** 0 0 2 6 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 *** 0 0 2 23 *** 4 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. 31 29 *** 12 5 0 0 *** 0 7 22 28 *** DATE OF START AND END FREEZING START = 8 OCT. END = 5 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -6.1 -3.4 1.1 8.4 13.2 18.2 22.6 21.6 18.5 10.8 1.2 -1.4 8.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.7 -8.1 -4.0 2.6 7.0 10.8 15.1 13.6 9.5 2.9 -2.4 -4.6 2.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. -1.4 1.3 6.3 14.2 19.4 25.7 30.1 29.5 27.5 18.7 4.9 1.8 14.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.3 9.4 10.3 11.6 12.4 14.9 15.0 15.9 18.0 15.8 7.3 6.4 12.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.96 2.36 2.84 4.41 6.31 7.72 8.93 8.06 6.33 4.44 4.03 3.49 5.07 MEAN OF MIXING RATIO AT 09 GMT. 2.50 2.93 3.33 4.93 6.56 7.85 9.30 8.88 7.24 4.92 4.53 4.13 5.59 MEAN OF MIXING RATIO AT 15 GMT. 2.32 3.08 3.34 4.65 6.28 6.89 9.04 7.63 6.62 5.44 4.27 3.86 5.28 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 -19.0 -14.0 -12.0 2.0 6.0 10.0 9.0 4.0 -2.0 -13.0 -11.0 -20.0 DAY 17 16 13 23 1 4 1 29 25 30 15 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.0 9.0 18.0 24.0 25.0 33.0 34.0 33.0 33.0 27.0 15.0 6.0 34.0 DAY 28 27 31 19 17 27 15 31 1 1 8 24 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 9.0 15.0 19.0 9.5 7.0 10.0 2.5 0.0 25.0 12.0 5.0 25.0 DAY 14 15 3 20 31 5 12 7 ** 28 24 15 MONTHLY TOTAL PRECIPITATION IN MM. 28.0 24.0 34.0 78.0 31.5 15.5 15.0 6.5 0.0 36.5 29.7 10.0 308.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.9 40.5 7.0 24.7 NO. OF DAYS WITH PRECIPITATION. 6 7 6 12 8 4 4 4 0 3 9 4 67 NO. OF DAYS PRECIPITATION EQUAL 6 7 6 12 6 4 3 3 0 3 9 4 63 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 3 0 0 1 0 0 2 1 0 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 84 78 75 79 76 67 68 69 73 94 95 78 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 66 54 50 45 39 35 34 33 37 75 85 52 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 74 57 49 48 33 36 30 32 54 84 92 55 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 21 14 1 0 0 0 0 0 0 10 20 96 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 21 9 2 0 0 0 0 0 0 0 5 8 45 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 19 19 9 0 0 0 53 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 28 30 9 0 0 0 0 0 3 23 30 153 DATE OF START AND END FREEZING START = 8 OCT. END = 24 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. MEAN AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -2.6 -1.6 4.7 11.5 14.1 18.8 21.9 22.5 16.9 12.1 5.2 -3.5 10.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.5 -6.4 -0.8 5.2 7.1 11.6 14.5 15.2 9.1 4.8 0.2 -8.1 3.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.3 3.3 10.2 17.7 21.1 25.9 29.4 29.9 24.7 19.4 10.1 1.2 16.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.8 9.7 11.0 12.5 14.0 14.3 14.9 14.7 15.6 14.6 9.9 9.3 12.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.86 2.55 3.96 5.41 6.55 8.01 8.60 8.57 5.80 5.92 4.62 2.68 5.46 MEAN OF MIXING RATIO AT 09 GMT. 3.35 2.93 4.07 5.85 6.50 7.51 9.80 9.31 7.35 6.32 5.09 3.35 5.95 MEAN OF MIXING RATIO AT 15 GMT. 3.20 2.90 3.91 5.19 5.79 7.55 8.96 8.18 6.50 6.72 5.28 3.00 5.60 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.0 -15.0 -8.0 0.0 2.0 5.0 10.0 12.0 6.0 2.0 -6.0 -22.1 -22.1 DAY 8 4 16 4 3 30 1 29 20 10 9 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.0 10.0 16.8 25.0 28.0 31.7 33.5 34.5 29.0 23.3 17.0 10.0 34.5 DAY 31 27 29 21 30 9 29 18 11 6 3 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 4.0 11.0 19.0 33.0 4.0 0.0 0.0 5.0 5.0 23.0 7.0 33.0 DAY 16 2 21 30 13 28 ** ** 8 15 5 4 MONTHLY TOTAL PRECIPITATION IN MM. 29.0 5.0 53.3 67.2 72.0 11.0 0.0 0.0 12.0 17.5 55.0 14.0 336.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 26.0 44.7 3.6 25.7 NO. OF DAYS WITH PRECIPITATION. 8 3 10 12 9 5 0 0 3 6 9 5 70 NO. OF DAYS PRECIPITATION EQUAL 6 1 8 12 9 3 0 0 3 6 9 3 60 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 3 1 0 0 0 0 0 1 0 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 82 86 78 82 75 67 65 65 86 91 88 79 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 74 57 52 49 42 37 38 36 37 44 61 73 50 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 64 53 41 39 37 34 30 36 57 75 80 52 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 21 5 0 0 0 0 0 0 0 4 25 76 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 12 6 0 0 0 0 0 0 0 0 0 14 32 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 14 18 0 0 0 0 37 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 27 21 1 0 0 0 0 0 0 15 29 123 DATE OF START AND END FREEZING START = 1 NOV. END = 4 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -0.4 1.5 4.9 9.1 15.1 18.6 22.9 24.2 18.2 10.2 4.7 -2.0 10.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.1 -3.6 -1.7 2.8 7.7 11.1 15.5 15.5 10.0 2.2 -2.1 -7.8 3.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.4 6.5 11.5 15.3 22.4 26.1 30.4 33.0 26.5 18.2 11.5 3.9 17.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.5 10.1 13.2 12.5 14.7 15.0 14.9 17.5 16.5 16.0 13.6 11.7 13.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.09 3.22 3.69 5.20 6.75 9.03 10.14 10.36 7.13 4.73 3.45 2.38 5.76 MEAN OF MIXING RATIO AT 09 GMT. 3.89 3.74 4.12 5.49 5.96 8.06 10.54 9.89 7.83 4.95 3.96 3.13 5.96 MEAN OF MIXING RATIO AT 15 GMT. 3.93 3.54 3.86 5.01 5.84 7.79 9.80 8.81 7.13 4.99 4.03 2.98 5.64 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.0 -9.0 -9.0 -3.0 -2.0 8.0 10.0 11.0 3.0 -1.0 -12.0 -16.0 -16.0 DAY 24 25 27 7 9 1 3 17 22 5 26 19 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 11.0 18.0 20.5 28.0 32.5 34.3 37.0 33.5 27.0 18.0 8.5 37.0 DAY 6 22 24 30 22 21 16 5 3 3 22 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.5 8.0 12.0 18.0 7.0 26.5 1.0 0.0 10.5 1.0 8.0 1.5 26.5 DAY 16 5 17 11 14 3 8 ** 20 24 3 17 MONTHLY TOTAL PRECIPITATION IN MM. 12.5 9.0 41.5 52.5 25.5 39.5 1.6 0.0 12.5 1.0 27.0 1.5 224.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 28.1 52.4 6.3 13.2 NO. OF DAYS WITH PRECIPITATION. 3 2 7 8 9 3 2 0 2 1 7 1 45 NO. OF DAYS PRECIPITATION EQUAL 3 2 7 8 8 3 1 0 2 1 6 1 42 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 1 0 1 0 0 1 0 0 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 90 86 83 85 75 81 74 74 75 83 78 84 81 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 60 49 49 34 39 40 32 37 37 44 59 46 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 59 46 48 35 39 35 26 35 43 55 66 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 14 8 0 0 0 0 0 0 0 11 28 82 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 4 1 0 0 0 0 0 0 0 0 0 4 9 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 20 30 11 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. 31 25 25 5 1 0 0 0 0 12 22 31 152 DATE OF START AND END FREEZING START = 5 OCT. END = 9 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -2.7 0.5 2.8 8.3 16.0 18.9 24.3 23.6 18.8 11.8 4.5 3.5 10.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.8 -4.3 -2.3 2.1 8.7 10.9 16.8 14.9 10.3 4.7 -1.7 -1.1 4.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.6 5.2 7.9 14.5 23.4 26.9 31.7 32.3 27.4 18.9 10.8 8.2 17.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.4 9.5 10.2 12.4 14.7 16.0 14.9 17.4 17.1 14.2 12.5 9.3 13.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.46 3.04 3.39 4.44 7.08 7.35 9.45 7.85 6.91 5.06 3.62 3.59 5.35 MEAN OF MIXING RATIO AT 09 GMT. 2.92 3.31 3.68 4.47 6.89 7.51 9.97 8.11 6.73 5.51 4.65 4.38 5.68 MEAN OF MIXING RATIO AT 15 GMT. 2.92 3.23 3.70 4.34 6.30 7.13 9.95 7.36 5.46 5.48 4.62 4.45 5.41 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.0 -19.0 -7.0 -5.0 4.0 7.0 11.0 9.0 5.0 -1.5 -6.2 -6.4 -19.0 DAY 14 4 1 6 9 9 15 23 19 31 18 20 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.0 11.6 17.0 22.4 28.2 32.8 35.5 36.5 31.9 25.7 15.5 13.5 36.5 DAY 1 25 30 30 31 30 21 21 1 2 5 27 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.0 5.0 9.0 16.0 17.0 3.0 15.0 0.0 12.0 16.0 16.0 10.0 17.0 DAY 4 20 19 12 8 4 4 ** 23 15 7 11 MONTHLY TOTAL PRECIPITATION IN MM. 13.5 9.0 15.5 51.0 33.0 3.0 36.0 0.0 18.0 27.0 56.0 28.0 290.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 13.1 30.0 18.6 38.3 NO. OF DAYS WITH PRECIPITATION. 4 2 3 10 6 1 6 0 2 5 6 5 50 NO. OF DAYS PRECIPITATION EQUAL 4 2 3 9 6 1 6 0 2 5 6 5 49 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 2 1 0 1 0 1 1 4 1 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 81 84 75 79 67 63 60 72 73 83 78 75 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 57 54 44 39 34 35 28 30 39 54 61 45 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 57 55 44 37 32 35 24 24 45 61 67 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 14 7 1 0 0 0 0 0 0 8 10 63 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 1 0 0 0 0 3 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 12 5 2 0 0 0 0 0 0 0 0 0 19 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 25 27 7 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. 31 26 27 8 0 0 0 0 0 3 24 18 137 DATE OF START AND END FREEZING START = 29 OCT. END = 28 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -2.8 -4.5 -0.3 8.8 14.6 20.0 22.8 24.1 16.6 12.1 4.8 -0.4 9.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.2 -10.9 -5.4 2.5 7.2 12.1 15.3 15.8 8.4 4.2 -1.3 -5.5 2.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.6 1.9 4.9 15.2 22.1 28.0 30.3 32.4 24.8 20.1 10.9 4.8 16.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.8 12.8 10.3 12.7 14.9 15.9 15.0 16.6 16.4 15.9 12.2 10.3 13.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.38 2.07 2.79 4.11 6.64 8.58 10.51 9.74 6.75 5.64 4.02 2.94 5.51 MEAN OF MIXING RATIO AT 09 GMT. 3.03 2.78 3.27 4.47 6.20 7.56 9.58 9.01 5.80 5.52 4.52 3.36 5.43 MEAN OF MIXING RATIO AT 15 GMT. 2.93 2.68 3.28 3.91 5.59 6.68 8.05 7.95 4.74 5.09 4.59 3.42 4.91 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 -24.0 -19.2 -6.0 1.6 5.0 11.0 10.0 5.0 0.0 -6.0 -13.0 -24.0 DAY 29 1 8 13 2 3 22 15 9 30 28 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.2 9.0 12.6 26.8 28.4 33.0 36.5 35.7 30.3 25.0 15.0 12.7 36.5 DAY 6 19 31 25 28 22 28 27 1 6 5 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 0.5 7.0 6.0 9.0 3.0 20.5 0.0 12.0 3.0 6.0 10.5 20.5 DAY 16 26 7 28 21 7 5 ** 14 29 13 10 MONTHLY TOTAL PRECIPITATION IN MM. 24.0 0.5 17.0 15.0 26.5 12.5 30.5 0.0 12.0 7.0 17.0 13.3 175.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 23.7 30.8 24.2 21.3 NO. OF DAYS WITH PRECIPITATION. 5 1 5 5 6 5 4 0 1 3 4 3 42 NO. OF DAYS PRECIPITATION EQUAL 5 0 5 5 6 5 4 0 1 3 4 2 40 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 1 0 1 0 0 1 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 84 83 70 78 73 76 69 78 85 88 86 79 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 62 57 40 38 33 36 30 31 36 52 57 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 61 62 59 36 35 29 29 25 25 36 59 63 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 24 19 4 0 0 0 0 0 0 5 21 98 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 16 13 6 0 0 0 0 0 0 0 0 3 38 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 19 24 2 0 0 0 54 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 28 30 8 0 0 0 0 0 1 22 29 147 DATE OF START AND END FREEZING START = 30 OCT. END = 21 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -5.4 -4.6 3.8 10.3 15.1 21.9 23.5 24.3 19.0 12.3 7.9 3.2 10.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -9.7 -9.9 -1.9 3.6 8.3 13.5 16.0 15.9 10.8 4.1 0.9 -1.8 4.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. -1.1 0.7 9.4 17.0 21.8 30.3 30.9 32.7 27.2 20.5 14.9 8.2 17.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.6 10.6 11.3 13.4 13.5 16.8 14.9 16.8 16.4 16.4 14.0 10.0 13.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.18 1.96 3.20 4.90 6.86 8.44 8.85 8.83 7.30 4.54 4.09 3.25 5.37 MEAN OF MIXING RATIO AT 09 GMT. 2.61 2.45 3.55 5.02 6.97 8.02 8.91 8.48 6.64 4.82 4.81 3.77 5.50 MEAN OF MIXING RATIO AT 15 GMT. 2.45 2.56 3.43 4.69 6.40 7.52 8.65 7.09 5.37 4.82 4.79 3.84 5.13 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.0 -21.0 -10.0 -4.0 0.0 9.0 12.0 13.0 6.0 -3.0 -2.0 -8.0 -21.0 DAY 10 16 1 2 4 2 7 1 26 12 17 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 3.0 6.5 18.0 26.0 29.4 36.3 36.0 38.0 35.6 26.2 18.8 20.0 38.0 DAY 30 6 29 15 28 23 17 30 1 1 4 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 15.0 19.5 17.5 11.0 3.0 25.0 0.0 2.0 1.0 23.0 10.0 25.0 DAY 6 15 17 28 11 13 18 ** 26 2 24 24 MONTHLY TOTAL PRECIPITATION IN MM. 28.0 28.8 31.0 41.0 51.0 5.0 34.0 0.0 2.0 1.0 47.0 17.0 285.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 30.7 33.9 12.6 22.7 NO. OF DAYS WITH PRECIPITATION. 7 7 4 7 11 2 5 0 1 1 3 4 52 NO. OF DAYS PRECIPITATION EQUAL 7 5 4 7 11 2 5 0 1 1 3 4 50 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 1 2 0 1 0 0 0 2 1 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 86 78 75 80 81 69 63 64 72 70 81 76 75 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 57 47 42 43 29 32 29 30 32 45 52 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 60 44 39 38 27 31 22 23 34 54 67 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 25 10 1 0 0 0 0 0 0 0 13 78 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 21 13 0 0 0 0 0 0 0 0 0 0 34 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 18 22 25 6 0 0 0 71 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 22 6 1 0 0 0 0 4 14 20 124 DATE OF START AND END FREEZING START = 12 OCT. END = 4 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -0.1 1.5 3.9 9.5 14.8 21.0 22.8 25.2 18.2 11.8 3.3 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -4.6 -4.5 -2.3 3.2 6.7 12.7 15.3 17.0 10.0 4.1 -2.4 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.3 7.5 10.1 15.8 22.8 29.2 30.3 33.4 26.4 19.4 9.1 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.9 12.0 12.4 12.6 16.1 16.5 15.0 16.4 16.4 15.3 11.5 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.96 2.79 3.10 4.60 6.12 7.07 7.81 8.82 6.99 4.88 3.60 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 3.17 3.02 3.22 4.51 5.86 6.87 7.94 8.67 7.15 5.20 4.07 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 3.33 2.37 3.00 4.18 5.21 6.45 7.61 7.84 6.12 4.96 4.22 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -13.5 -6.0 -5.0 0.5 9.0 10.0 11.0 3.0 0.0 -11.0 ***** ****** DAY 3 4 13 9 21 5 14 30 28 13 29 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 11.5 15.0 23.5 32.0 33.3 35.5 39.7 31.0 28.0 17.0 ***** ****** DAY 31 26 7 30 30 24 21 12 2 1 19 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 10.0 5.0 18.0 14.5 5.0 9.0 15.0 0.0 21.5 5.0 ***** ****** DAY 9 4 17 8 14 10 14 8 ** 12 11 ** MONTHLY TOTAL PRECIPITATION IN MM. 15.0 18.0 13.5 70.0 46.0 7.0 9.0 27.0 0.0 50.0 19.0 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 16.9 44.8 13.1 25.1 NO. OF DAYS WITH PRECIPITATION. 4 3 5 7 7 2 1 5 0 5 5 *** *** NO. OF DAYS PRECIPITATION EQUAL 4 3 5 7 7 2 1 5 0 5 5 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 4 2 0 0 1 0 1 0 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 78 75 75 77 59 58 60 74 70 87 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 45 41 41 37 27 31 29 34 37 53 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 38 39 38 32 27 28 26 31 43 65 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 17 12 1 0 0 0 0 0 0 8 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 3 0 0 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 2 0 0 0 0 0 0 0 0 2 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 11 19 27 8 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 23 27 7 0 0 0 0 0 6 26 *** *** DATE OF START AND END FREEZING START = 13 OCT. END = 19 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -2.6 -2.0 2.7 12.0 15.8 20.9 26.1 23.9 19.2 10.6 4.4 0.7 11.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.9 -8.1 -3.5 5.0 7.9 12.4 18.0 15.8 11.3 4.0 -1.0 -3.5 4.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.8 4.1 8.9 18.9 23.7 29.3 34.2 32.0 27.1 17.2 9.8 4.9 17.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.7 12.2 12.4 13.9 15.8 16.9 16.2 16.2 15.8 13.2 10.8 8.4 13.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.41 2.45 3.36 5.28 6.33 7.69 8.92 8.66 7.16 5.14 4.09 3.57 5.42 MEAN OF MIXING RATIO AT 09 GMT. 3.15 3.26 3.52 5.28 5.73 7.40 8.35 8.03 6.89 5.48 4.52 4.03 5.47 MEAN OF MIXING RATIO AT 15 GMT. 3.03 3.25 3.24 4.91 5.19 6.24 7.93 7.16 6.10 6.00 4.61 4.01 5.14 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 -19.0 -12.0 0.0 2.0 6.0 14.0 10.0 8.0 -1.0 -5.0 -13.0 -20.0 DAY 22 8 15 1 10 13 5 31 16 29 11 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.2 11.3 15.6 24.6 28.4 34.5 37.5 36.5 31.8 23.0 14.2 9.0 37.5 DAY 1 24 31 14 25 30 20 2 6 8 4 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 17.5 7.0 7.0 6.0 0.0 0.0 0.0 0.0 7.5 14.0 8.0 17.5 DAY 21 7 23 29 9 ** ** ** ** 24 23 22 MONTHLY TOTAL PRECIPITATION IN MM. 16.0 27.1 19.0 24.2 8.5 0.0 0.0 0.0 0.0 26.5 26.0 13.0 160.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 38.7 20.4 0.0 40.9 NO. OF DAYS WITH PRECIPITATION. 4 5 6 6 2 0 0 0 0 7 4 4 38 NO. OF DAYS PRECIPITATION EQUAL 4 5 4 6 2 0 0 0 0 6 4 4 35 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 0 0 0 0 0 0 0 0 1 0 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 88 86 76 78 68 57 64 69 80 90 92 78 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 62 51 39 31 30 25 28 31 46 57 70 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 64 47 33 28 26 24 25 29 59 71 83 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 24 14 0 0 0 0 0 0 0 5 18 84 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 1 0 0 0 0 4 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 10 2 1 0 0 0 0 0 0 0 0 1 14 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 18 28 25 5 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 29 25 1 0 0 0 0 0 2 21 29 137 DATE OF START AND END FREEZING START = 29 OCT. END = 1 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -2.1 1.0 7.2 11.7 14.8 20.7 23.3 24.1 19.3 11.7 4.0 1.6 11.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.6 -4.1 0.8 4.8 7.0 12.1 16.0 15.8 10.8 4.2 -1.5 -2.8 4.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.4 6.1 13.6 18.7 22.5 29.3 30.7 32.4 27.8 19.1 9.5 6.0 18.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.0 10.2 12.8 13.9 15.5 17.2 14.7 16.6 17.0 14.9 11.0 8.8 13.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.76 3.09 4.01 5.00 5.93 7.47 9.05 8.61 7.09 5.16 4.01 3.62 5.48 MEAN OF MIXING RATIO AT 09 GMT. 3.39 3.48 4.36 4.84 5.26 6.75 9.14 8.91 7.03 5.48 4.61 4.08 5.61 MEAN OF MIXING RATIO AT 15 GMT. 3.27 3.41 4.14 4.35 4.68 5.89 8.45 7.29 6.05 5.75 4.79 4.06 5.18 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.0 -10.0 -5.0 0.0 4.0 4.0 10.0 11.0 6.0 0.0 -15.0 -13.0 -17.0 DAY 28 1 4 14 4 1 19 14 30 20 20 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 12.0 21.6 24.5 29.0 35.0 37.0 37.5 31.5 25.0 20.0 13.5 37.5 DAY 16 28 28 5 28 26 29 1 13 4 6 28 24 HOUR MAXIMUM PRECIPITATION IN MM. 2.0 13.0 12.0 5.5 8.0 0.0 5.5 0.0 0.0 8.0 19.0 8.5 19.0 DAY 21 4 9 12 3 ** 11 ** ** 18 18 20 MONTHLY TOTAL PRECIPITATION IN MM. 6.1 17.5 19.0 19.9 19.0 0.0 10.0 0.0 0.0 17.5 50.0 25.8 184.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 23.1 21.0 5.4 50.5 NO. OF DAYS WITH PRECIPITATION. 7 4 3 8 5 0 3 0 0 6 5 7 48 NO. OF DAYS PRECIPITATION EQUAL 3 3 3 7 4 0 2 0 0 5 4 5 36 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 0 0 0 0 0 0 0 3 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 90 86 80 75 73 64 65 62 70 78 89 90 77 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 57 46 36 32 26 33 29 28 39 56 63 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 62 45 35 28 23 31 24 28 50 73 73 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 16 3 0 0 0 0 0 0 0 9 10 64 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 11 1 0 0 0 0 0 0 0 0 3 1 16 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 16 17 24 4 0 0 0 61 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 28 15 1 0 0 0 0 0 7 19 28 128 DATE OF START AND END FREEZING START = 20 OCT. END = 14 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 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. -3.3 0.6 5.6 8.9 13.0 19.2 23.4 22.8 20.1 14.1 5.7 -4.4 10.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.5 -5.2 -1.2 3.7 6.4 10.5 15.6 14.4 10.5 6.0 -1.0 -8.5 3.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.8 6.4 12.3 14.0 19.7 27.9 31.2 31.2 29.7 22.3 12.4 -0.3 17.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.3 11.6 13.5 10.3 13.3 17.4 15.6 16.8 19.2 16.3 13.4 8.2 13.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.36 3.03 3.70 5.65 6.64 7.53 9.34 8.78 6.56 5.46 3.61 2.52 5.43 MEAN OF MIXING RATIO AT 09 GMT. 3.03 3.28 3.52 5.23 6.28 5.83 8.72 8.53 7.06 5.79 4.22 2.94 5.37 MEAN OF MIXING RATIO AT 15 GMT. 3.03 3.09 3.35 5.11 6.07 5.56 8.53 7.63 6.17 6.61 4.66 2.85 5.22 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -15.0 -9.0 0.0 2.0 5.0 12.0 11.0 7.0 0.0 -7.2 -21.0 -21.0 DAY 26 17 10 1 1 7 13 16 10 23 29 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.8 12.0 20.0 18.5 28.0 34.0 35.0 34.0 32.0 28.0 18.5 7.0 35.0 DAY 3 26 26 15 28 27 15 3 3 1 11 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 5.0 5.5 16.5 11.0 0.0 1.5 0.0 0.0 3.5 11.0 6.0 16.5 DAY 23 16 22 3 11 ** 27 ** ** 4 14 1 MONTHLY TOTAL PRECIPITATION IN MM. 26.8 6.5 23.0 101.5 101.0 0.0 1.5 0.0 0.0 5.5 22.5 37.0 325.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 17.3 62.3 0.5 20.0 NO. OF DAYS WITH PRECIPITATION. 6 2 6 12 13 0 1 0 0 3 6 15 64 NO. OF DAYS PRECIPITATION EQUAL 5 2 6 12 13 0 1 0 0 3 5 13 60 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 4 6 0 0 0 0 0 1 0 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 86 80 90 88 71 68 70 67 77 78 86 79 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 51 41 52 47 24 29 28 25 33 44 67 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 52 40 53 47 23 30 27 26 51 65 79 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 16 8 0 0 0 0 0 0 0 5 20 74 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 1 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 13 1 0 0 0 0 0 0 0 0 0 19 33 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 26 22 12 0 0 0 69 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 24 20 3 0 0 0 0 0 1 20 29 126 DATE OF START AND END FREEZING START = 23 OCT. END = 24 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. MEAN AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -1.7 0.1 2.8 9.0 14.6 19.3 23.3 24.3 18.9 14.6 4.7 -0.1 10.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.0 -4.4 -2.0 3.1 6.9 11.3 15.8 16.4 10.7 6.3 -1.6 -4.2 4.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.6 4.5 7.6 14.9 22.2 27.4 30.8 32.3 27.0 22.8 11.0 4.0 17.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.6 8.9 9.6 11.8 15.3 16.1 15.0 15.9 16.3 16.5 12.6 8.2 12.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.79 2.94 3.48 5.08 6.50 8.51 10.66 9.55 7.09 5.38 3.50 3.11 5.72 MEAN OF MIXING RATIO AT 09 GMT. 3.22 3.18 3.45 5.38 6.42 7.60 9.98 9.36 7.09 5.45 4.04 3.67 5.74 MEAN OF MIXING RATIO AT 15 GMT. 3.27 3.17 3.54 4.89 6.09 7.63 9.31 8.38 6.71 6.48 4.19 3.47 5.59 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.0 -12.0 -14.0 -4.0 -1.0 3.6 12.0 13.0 6.0 -3.0 -9.0 -12.0 -14.0 DAY 17 28 29 2 8 6 2 26 10 31 17 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 10.0 14.4 23.5 27.0 32.5 35.0 39.0 35.5 27.0 17.5 12.0 39.0 DAY 7 8 10 5 16 18 13 10 5 9 10 18 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 4.5 10.0 15.0 8.0 5.0 0.5 25.5 0.0 0.5 3.5 10.5 25.5 DAY 29 19 28 27 29 5 7 22 ** 4 11 16 MONTHLY TOTAL PRECIPITATION IN MM. 15.2 14.5 18.3 71.0 23.5 13.5 0.5 26.5 0.0 0.5 8.5 17.5 209.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 22.9 51.6 12.9 12.6 NO. OF DAYS WITH PRECIPITATION. 5 9 6 13 7 7 1 2 0 1 3 5 59 NO. OF DAYS PRECIPITATION EQUAL 5 8 5 10 7 7 0 2 0 0 3 5 52 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 1 0 0 0 1 0 0 0 1 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 84 81 85 82 82 77 68 73 72 78 83 79 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 62 55 50 48 37 31 34 30 32 30 45 64 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 63 54 49 38 37 34 29 34 47 56 71 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 17 8 1 0 0 0 0 0 0 9 16 75 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 11 5 2 0 0 0 0 0 0 0 0 4 22 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 19 25 7 0 0 0 59 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 23 8 2 0 0 0 0 1 20 26 135 DATE OF START AND END FREEZING START = 31 OCT. END = 9 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. MEAN AND EXTREMES FOR THE PERIOD 1974 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. -3.4 -1.4 3.3 9.5 13.9 19.2 23.0 22.9 18.6 11.7 5.0 -0.7 10.1 SD OF MEAN DAILY TEMPERATURE IN C. 2.39 2.69 2.19 1.30 1.40 1.38 1.30 1.28 1.35 1.48 1.85 2.39 1.75 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.6 -6.7 -2.6 3.1 6.8 11.2 15.0 14.7 10.1 4.1 -1.1 -5.8 3.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.9 3.9 9.1 16.1 21.1 27.2 31.1 31.2 27.0 19.2 11.0 4.4 16.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.5 10.7 11.6 13.1 14.3 16.0 16.0 16.5 16.9 15.2 12.1 10.1 13.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.22 2.51 3.40 4.83 6.39 8.01 9.32 8.95 7.06 5.09 3.81 2.82 5.36 MEAN OF MIXING RATIO AT 09 GMT. 3.12 3.35 4.06 5.57 6.87 8.20 10.29 10.04 8.17 6.17 4.89 3.65 6.19 MEAN OF MIXING RATIO AT 15 GMT. 2.77 3.00 3.78 5.00 6.20 7.39 9.29 8.73 7.13 5.83 4.54 3.27 5.57 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -21.0 -24.0 -24.0 -12.0 -2.0 1.5 4.5 3.0 1.0 -9.0 -15.5 -22.1 -24.0 YEAR - DAY 77-16 97- 1 85- 3 93-23 92- 5 84-16 88- 3 84-27 92-28 77-24 75-30 94- 6 85- 3 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.8 17.0 21.6 27.0 32.0 37.0 40.0 39.7 35.6 30.0 21.7 20.0 40.0 YEAR - DAY 2- 3 77-28 1-28 75- 7 99-30 75-29 78-17 99-12 98- 1 79- 1 74-10 98-10 78-17 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 22.9 25.0 30.0 33.0 26.5 25.0 25.5 16.0 40.0 23.0 23.0 40.0 YEAR - DAY 2-23 75-21 91-10 77-15 94-13 95- 3 98-18 3-22 75-30 89-30 94- 5 91- 9 89-30 MONTHLY TOTAL PRECIPITATION IN MM. 17.3 17.4 32.7 47.0 47.3 14.9 7.3 4.7 3.7 23.9 27.4 23.8 267.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 25.1 40.9 5.9 28.1 NO. OF DAYS WITH PRECIPITATION. 5 5 7 9 9 4 2 1 1 5 5 6 59 NO. OF DAYS PRECIPITATION EQUAL 4 4 7 8 9 4 2 1 1 5 5 5 55 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 1 1 0 0 0 0 1 1 1 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 78 78 76 76 69 64 64 69 76 80 80 74 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 63 56 48 45 37 37 36 37 44 56 65 49 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 64 55 47 44 36 36 34 37 52 65 72 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 20 10 1 0 0 0 0 0 0 7 20 85 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 12 7 2 0 0 0 0 0 0 0 1 6 28 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 21 22 7 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. 30 26 23 6 0 0 0 0 0 3 20 28 136 DATE OF START AND END FREEZING START = 5 OCT. END = 9 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION KHALAT POUSHAN LATITUDE 38 3 N DATA PROCESSING CENTER LONGITUDE 46 27 E ELEVATION 1567 MET. MEAN AND EXTREMES FOR THE PERIOD 1974 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. -3.3 -1.3 3.8 10.5 15.0 20.7 24.2 24.1 19.5 12.0 5.1 -0.8 10.8 AVERAGE DEW POINT TEMPERATURE. IN C. -8.1 -6.9 -3.4 1.0 4.5 7.3 10.2 9.5 6.3 2.6 -1.2 -5.5 1.4 AVERAGE OF MIXING RATIO IN G/KG 2.70 2.94 3.75 5.13 6.49 7.86 9.63 9.24 7.45 5.69 4.41 3.24 5.71 AVERAGE OF VAPOUR PRESSURE HPA 3.60 3.93 5.02 6.88 8.70 10.55 12.92 12.40 10.00 7.63 5.90 4.33 7.66 AVERAGE OF SATURATION DEFICIT IN HPA 1.52 2.04 3.65 6.68 9.54 15.45 18.93 19.47 14.39 7.53 3.49 1.83 8.71 AVERAGE RELATIVE HUMIDITY IN PERCENT 72 68 63 57 55 47 46 45 47 57 67 73 58 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 82 82 80 77 77 69 65 65 69 77 82 83 76 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 62 57 50 42 39 32 33 32 33 42 54 62 45 NO. OF DAYS PRECIPITATION EQUAL 2 1 2 4 4 1 0 0 0 1 2 2 19 OR MORE THAN 5 MM.