IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1976 -3.6 -3.5 -2.5 6.7 13.0 19.3 22.7 19.5 16.2 12.0 5.3 1.8 26.3 1977 -4.1 -1.5 6.5 9.2 13.2 18.0 21.3 19.7 16.0 10.4 4.6 -1.0 25.4 1978 -4.5 -1.5 1.9 9.1 13.1 16.3 19.2 19.3 15.9 10.7 2.6 2.3 23.8 1979 -1.8 1.0 2.3 11.0 11.8 16.5 20.4 18.5 15.4 11.6 5.2 -2.3 22.7 1980 -5.2 -2.7 0.9 10.7 14.0 19.6 20.1 19.8 15.1 10.4 5.9 1.3 25.3 1981 -4.2 ****** 5.5 10.3 13.8 17.5 ****** 20.9 15.4 10.1 6.4 2.6 ****** 1982 -2.4 -2.8 1.2 10.3 16.3 20.7 22.0 22.5 16.9 9.3 2.6 -4.9 27.4 1983 -8.2 ****** ****** 7.0 14.8 20.3 22.5 21.1 17.6 9.2 5.5 ****** ****** 1984 -6.2 -4.5 3.0 8.8 11.8 18.7 ****** 21.2 16.0 ****** 5.2 -2.9 ****** 1985 -0.4 -1.2 3.4 8.7 13.7 19.1 21.6 19.2 15.7 9.3 5.8 -4.8 26.4 1986 -4.3 -2.3 1.9 8.8 13.5 17.4 20.5 18.8 15.4 12.7 3.2 -4.2 24.8 1987 -4.9 -1.0 2.4 9.2 16.4 19.5 21.4 21.8 17.2 10.3 5.9 0.4 26.7 1988 -3.3 -4.4 4.1 9.1 15.8 19.4 22.2 22.5 18.1 12.5 5.6 2.3 26.9 1989 ****** ****** 2.7 8.8 14.1 20.5 23.1 20.5 16.4 11.7 5.0 -4.7 ****** 1990 ****** -6.1 2.3 8.4 15.1 18.3 21.3 17.6 ****** 10.5 6.5 0.2 ****** 1991 -1.9 -3.2 4.2 10.7 13.0 ****** 21.8 20.8 16.1 11.4 6.3 -3.5 ****** 1992 -10.4 -8.2 -3.3 7.8 12.6 17.0 21.0 18.8 14.7 10.5 6.6 -2.6 31.4 1993 -8.3 -4.1 1.7 8.7 13.1 17.1 20.4 20.2 16.7 9.8 6.4 3.7 28.7 1994 -0.8 0.2 3.7 ****** 13.6 17.5 21.9 21.9 14.9 10.5 4.9 -1.6 ****** 1995 1.1 ****** 5.1 8.6 13.1 17.4 ****** 20.9 16.6 10.3 5.4 ****** ****** 1996 -7.9 0.9 2.4 9.2 15.0 18.5 20.1 20.0 ****** ****** ****** ****** ****** 1997 -2.7 -2.1 2.0 8.0 13.4 18.3 22.7 21.4 ****** 12.0 5.4 -2.5 ****** 1998 ****** -2.7 3.2 10.7 14.9 18.6 21.7 21.5 17.4 11.4 7.1 5.5 ****** 1999 -0.4 1.4 4.1 ****** ****** ****** ****** ****** 17.5 10.7 6.0 -0.3 ****** 2000 -2.0 -6.7 3.0 12.1 15.2 19.2 21.3 21.2 ****** ****** 4.7 -0.7 ****** 2001 -4.7 -2.9 6.5 11.3 ****** 19.0 22.0 21.0 16.5 13.2 5.8 2.3 ****** 2002 -6.1 ****** 6.4 9.8 14.0 17.3 ****** 20.3 18.5 11.6 4.3 ****** ****** 2003 -2.8 -1.5 3.0 9.8 12.4 16.8 21.7 19.5 16.3 11.3 4.7 -0.1 24.5 MEAN -4.0 -2.6 2.9 9.3 13.9 18.4 21.4 20.4 16.3 10.9 5.3 -0.6 25.4 SD 2.79 2.42 2.28 1.29 1.25 1.24 0.96 1.24 0.98 1.07 1.13 2.91 1.63 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 -9.4 -10.4 -9.3 0.9 4.7 10.2 12.9 8.5 5.8 2.7 -1.1 -4.0 0.9 1977 -10.1 -8.1 -1.7 2.4 3.9 6.2 10.0 9.2 4.5 1.3 -2.2 -7.1 0.7 1978 -11.6 -7.9 -5.2 0.3 3.3 4.9 8.0 7.7 4.1 0.0 -4.6 -4.1 -0.4 1979 -8.3 -5.6 -5.2 3.3 4.2 5.6 9.2 7.8 3.7 2.2 -4.6 -7.7 0.4 1980 -12.1 -10.5 -4.7 3.6 5.3 10.4 9.7 9.3 3.8 0.0 -1.3 -5.6 0.7 1981 -11.3 ****** -0.5 3.2 5.9 8.2 ****** 10.5 4.7 0.9 -1.5 -5.2 ****** 1982 -8.6 -9.2 -5.0 1.6 9.3 11.3 12.4 12.5 6.9 1.7 -4.6 -11.7 1.4 1983 -15.8 ****** ****** -0.7 6.8 10.4 12.3 9.6 7.2 -2.6 -4.4 ****** ****** 1984 -13.0 -11.9 -3.5 0.2 3.1 8.2 ****** 10.2 3.9 ****** -3.2 -8.9 ****** 1985 -8.7 -8.8 -4.8 -1.1 3.8 7.5 10.4 9.0 3.1 -3.1 -3.2 -10.8 -0.6 1986 -11.1 -9.0 -4.6 1.3 5.2 6.0 9.5 7.3 3.3 2.8 -2.7 -10.0 -0.2 1987 -13.2 -7.2 -4.0 1.1 6.7 9.9 12.1 12.4 7.0 2.9 -3.5 -6.2 1.5 1988 -9.6 -10.5 -2.2 2.0 7.5 9.4 12.0 13.1 6.8 1.5 -2.0 -5.5 1.9 1989 ****** ****** -4.2 1.3 5.1 10.5 14.0 8.9 4.2 0.2 -3.3 -12.3 ****** 1990 ****** -13.9 -4.6 -0.3 4.4 6.4 10.4 4.8 ****** -0.9 -4.2 -9.4 ****** 1991 -7.9 -10.3 -2.4 1.6 2.3 ****** 9.5 8.0 3.2 1.6 -3.1 -10.2 ****** 1992 -18.8 -16.4 -9.8 0.9 4.7 6.9 9.8 7.6 3.0 -1.7 -2.7 -8.6 -2.1 1993 -15.2 -10.6 -3.6 1.6 5.2 6.0 9.5 9.4 4.6 -0.5 -1.3 -4.8 0.0 1994 -7.0 -6.5 -4.1 ****** 4.4 6.0 10.8 9.9 3.9 1.8 -1.3 -7.9 ****** 1995 -5.8 ****** -2.9 1.8 4.6 7.2 9.4 8.7 4.9 -0.6 -5.6 ****** ****** 1996 -13.2 -5.6 -2.9 2.1 5.9 7.4 9.8 9.0 ****** ****** ****** ****** ****** 1997 -9.7 -9.6 -4.5 0.6 4.2 8.0 11.0 9.0 ****** 1.7 -0.1 -8.5 ****** 1998 ****** -8.9 -2.9 2.6 5.6 8.0 11.3 10.6 6.2 0.5 -3.9 -3.8 ****** 1999 -6.0 -5.9 -2.9 ****** ****** ****** ****** ****** 5.5 -0.3 -1.0 -7.4 ****** 2000 -8.1 -13.6 -4.8 3.0 4.1 6.8 10.0 9.9 ****** ****** -2.2 -6.9 ****** 2001 -12.4 -9.6 -1.5 1.3 ****** 7.6 11.0 9.3 5.0 3.5 -2.4 -2.9 ****** 2002 -13.4 ****** -2.2 2.7 4.3 6.9 9.9 9.9 6.7 1.1 -2.0 ****** ****** 2003 -8.1 -6.6 -3.3 3.8 4.1 7.0 11.6 8.9 4.8 1.8 -3.5 -4.6 1.3 MEAN -10.7 -9.4 -4.0 1.6 4.9 7.8 10.7 9.3 4.9 0.7 -2.8 -7.3 0.5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 2.3 3.4 4.2 12.6 21.3 28.3 32.6 30.5 26.6 21.4 11.7 7.7 16.9 1977 1.9 5.1 14.8 16.1 22.4 29.8 32.5 30.2 27.4 19.4 11.4 5.2 18.0 1978 2.7 5.0 9.0 17.8 23.0 27.7 30.3 30.9 27.7 21.4 9.6 8.9 17.8 1979 4.2 7.5 9.7 18.7 19.4 27.3 31.7 29.2 27.2 21.0 15.0 3.1 17.8 1980 1.7 4.9 6.5 17.7 22.7 28.7 30.5 30.3 26.5 20.8 13.2 8.2 17.7 1981 3.8 5.9 11.6 17.4 21.8 26.8 31.7 31.3 26.2 19.2 14.2 10.2 18.3 1982 3.7 3.4 7.3 19.1 23.3 30.1 31.5 32.5 26.9 17.0 9.8 1.9 17.2 1983 -0.7 ****** ****** 14.7 22.6 30.3 32.7 32.5 27.9 21.1 15.5 ****** ****** 1984 0.7 3.0 9.6 17.6 20.6 29.2 ****** 32.2 28.0 ****** 13.5 3.1 ****** 1985 7.9 6.5 11.6 18.5 23.5 30.7 32.8 29.5 28.4 21.7 14.8 1.1 18.9 1986 2.4 4.4 8.4 16.3 21.8 28.9 31.6 30.4 27.5 22.6 9.1 1.5 17.1 1987 3.4 5.1 8.9 17.3 26.2 29.0 30.7 31.1 27.3 17.7 15.3 7.0 18.2 1988 2.9 1.6 10.4 16.2 24.2 29.3 32.4 32.0 29.3 23.5 13.2 10.2 18.8 1989 ****** ****** 9.5 16.2 23.1 30.4 32.2 32.1 28.6 23.1 13.3 3.0 ****** 1990 ****** 1.8 9.3 17.1 25.7 30.3 32.2 30.5 ****** 21.9 17.1 9.8 ****** 1991 4.1 3.8 10.9 19.8 23.8 ****** 34.0 33.6 29.0 21.2 15.6 3.2 ****** 1992 -2.1 0.0 3.2 14.7 20.6 27.1 32.3 30.0 26.5 22.7 15.9 3.4 16.2 1993 -1.4 2.5 7.0 15.8 21.0 28.2 31.4 31.0 28.8 20.1 14.2 12.1 17.6 1994 5.4 6.9 11.4 ****** 22.8 28.9 33.0 33.9 25.8 19.3 11.1 4.2 ****** 1995 8.0 ****** 13.0 15.5 21.7 27.6 ****** 33.1 28.1 21.3 16.3 ****** ****** 1996 -2.7 7.5 7.7 16.2 24.1 29.5 30.5 30.9 29.1 22.4 14.3 9.1 18.2 1997 4.3 5.4 8.5 15.5 22.6 28.7 34.3 33.8 27.8 22.3 11.0 3.5 18.1 1998 0.5 3.3 9.3 18.8 24.1 29.1 32.2 32.4 28.5 22.2 18.2 14.9 19.5 1999 5.3 8.7 11.0 ****** ****** ****** ****** ****** 29.5 21.7 13.1 6.8 ****** 2000 4.0 0.2 10.7 21.1 26.2 31.6 32.6 32.5 ****** ****** 11.7 4.7 ****** 2001 3.0 4.0 14.5 21.3 ****** 30.5 33.1 32.7 28.0 23.0 13.8 7.4 ****** 2002 1.1 ****** 14.9 16.9 23.8 28.8 ****** 30.6 30.2 22.1 10.7 ****** ****** 2003 2.5 3.6 9.3 16.8 20.8 26.5 31.7 30.1 27.9 20.8 12.9 4.6 17.3 MEAN 2.6 4.3 9.7 17.1 22.8 29.0 32.1 31.5 27.9 21.2 13.4 6.2 18.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 11.7 13.8 13.5 11.7 16.6 18.1 19.7 22.0 20.8 18.7 12.8 11.7 15.9 1977 12.0 13.2 16.5 13.7 18.5 23.6 22.5 21.0 22.9 18.1 13.6 12.3 17.3 1978 14.3 12.9 14.2 17.5 19.7 22.8 22.3 23.2 23.6 21.4 14.2 13.0 18.3 1979 12.5 13.1 14.9 15.4 15.2 21.7 22.5 21.4 23.5 18.8 19.6 10.8 17.4 1980 13.8 15.4 11.2 14.1 17.4 18.3 20.8 21.0 22.7 20.8 14.5 13.8 17.0 1981 15.1 ****** 12.1 14.2 15.9 18.6 ****** 20.8 21.5 18.3 15.7 15.4 ****** 1982 12.3 12.6 12.3 17.5 14.0 18.8 19.1 20.0 20.0 15.3 14.4 13.6 15.8 1983 15.1 ****** ****** 15.4 15.8 19.9 20.5 22.9 20.7 23.7 19.9 ****** ****** 1984 13.7 14.9 13.1 17.4 17.5 21.0 ****** 22.0 24.1 ****** 16.7 12.0 ****** 1985 16.6 15.3 16.4 19.6 19.7 23.2 22.4 20.5 25.3 24.8 18.0 11.9 19.5 1986 13.5 13.4 13.0 15.0 16.6 22.9 22.1 23.1 24.3 19.8 11.8 11.5 17.2 1987 16.6 12.3 12.9 16.1 19.5 19.1 18.6 18.7 20.3 14.8 18.8 13.2 16.7 1988 12.5 12.1 12.6 14.2 16.7 19.9 20.4 18.9 22.5 22.0 15.2 15.7 16.9 1989 ****** ****** 13.7 14.9 18.0 19.9 18.2 23.2 24.4 22.9 16.6 15.3 ****** 1990 ****** 15.7 13.9 17.3 21.3 23.9 21.8 25.8 ****** 22.8 21.3 19.2 ****** 1991 12.0 14.1 13.3 18.2 21.5 ****** 24.5 25.6 25.8 19.6 18.7 13.4 ****** 1992 16.7 16.4 13.0 13.8 15.9 20.2 22.5 22.4 23.5 24.4 18.6 12.0 18.3 1993 13.8 13.1 10.6 14.2 15.8 22.2 21.9 21.6 24.2 20.6 15.5 16.9 17.5 1994 12.4 13.4 15.5 ****** 18.4 22.9 22.2 24.0 21.9 17.5 12.4 12.1 ****** 1995 13.8 ****** 15.9 13.7 17.1 20.4 ****** 24.4 23.2 21.9 21.9 ****** ****** 1996 10.5 13.1 10.6 14.1 18.2 22.1 20.7 21.9 ****** ****** ****** ****** ****** 1997 14.0 15.0 13.0 14.9 18.4 20.7 23.3 24.8 ****** 20.6 11.1 12.0 ****** 1998 ****** 12.2 12.2 16.2 18.5 21.1 20.9 21.8 22.3 21.7 22.1 18.7 ****** 1999 11.3 14.6 13.9 ****** ****** ****** ****** ****** 24.0 22.0 14.1 14.2 ****** 2000 12.1 13.8 15.5 18.1 22.1 24.8 22.6 22.6 ****** ****** 13.9 11.6 ****** 2001 15.4 13.6 16.0 20.0 ****** 22.9 22.1 23.4 23.0 19.5 16.2 10.3 ****** 2002 14.5 ****** 17.1 14.2 19.5 21.9 ****** 20.7 23.5 21.0 12.7 ****** ****** 2003 10.6 10.2 12.6 13.0 16.7 19.5 20.1 21.2 23.1 19.0 16.4 9.2 16.0 MEAN 13.5 13.7 13.7 15.6 17.9 21.2 21.4 22.2 23.0 20.4 16.2 13.3 17.7 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 2.40 2.11 2.13 4.38 5.36 6.49 7.82 5.95 5.34 4.32 3.79 3.25 4.45 1977 2.21 2.53 3.79 4.73 4.79 5.29 5.75 6.07 4.32 4.06 3.76 2.48 4.15 1978 2.06 2.70 3.16 4.20 4.67 5.09 5.39 5.25 4.43 3.34 3.16 3.52 3.91 1979 2.25 2.91 3.04 4.67 4.90 4.85 5.77 5.10 3.93 4.07 2.94 2.51 3.91 1980 1.90 1.93 2.87 4.42 4.37 5.19 5.14 5.33 3.83 3.62 3.74 2.90 3.77 1981 2.23 2.54 3.74 4.22 4.71 4.67 5.28 5.24 4.15 3.85 3.49 2.75 3.91 1982 2.33 2.09 2.88 4.36 5.25 5.04 4.87 5.29 4.56 4.83 3.47 2.23 3.93 1983 1.85 ****** ****** 4.25 5.44 4.99 5.77 5.83 4.82 2.76 2.88 ****** ****** 1984 1.90 2.26 3.83 4.25 4.31 6.19 ****** 6.17 4.45 ****** 3.53 2.65 ****** 1985 2.81 2.54 3.20 4.14 4.73 5.73 6.47 5.34 3.80 2.86 3.57 2.33 3.96 1986 2.04 2.39 3.09 4.64 4.76 5.69 5.89 6.35 4.12 3.95 3.63 2.22 4.06 1987 1.88 2.70 3.40 4.23 5.02 4.92 5.87 5.27 4.50 4.59 3.05 2.85 4.02 1988 2.22 2.19 3.20 3.90 4.55 4.71 6.34 5.84 4.11 3.56 3.20 2.69 3.88 1989 ****** ****** 3.11 4.25 4.22 5.00 6.01 6.03 3.97 3.59 3.31 1.82 ****** 1990 ****** 1.80 3.10 3.68 4.59 4.28 4.36 4.34 ****** 3.64 3.01 2.20 ****** 1991 2.72 2.37 3.75 4.64 4.61 ****** 6.03 4.41 4.20 4.43 3.14 2.34 ****** 1992 1.10 1.21 1.82 4.23 5.78 5.79 6.85 5.15 3.71 2.92 3.10 2.19 3.65 1993 1.39 2.00 2.84 3.92 4.20 4.14 4.52 6.87 5.09 3.40 3.26 2.35 3.67 1994 2.24 2.14 3.04 ****** 5.56 3.77 4.17 7.30 4.90 5.11 3.81 2.25 ****** 1995 2.44 ****** 2.68 4.31 5.32 7.05 7.48 6.91 5.04 3.50 2.37 ****** ****** 1996 1.61 2.79 3.18 4.44 4.97 7.07 8.30 8.09 4.51 3.10 2.65 2.69 4.45 1997 1.88 1.86 2.60 3.88 4.62 6.08 6.98 6.00 ****** 4.35 4.33 2.31 ****** 1998 1.27 2.39 3.53 5.07 4.44 6.32 6.67 6.83 5.06 3.81 2.51 2.72 4.22 1999 2.43 2.59 3.21 ****** ****** ****** ****** ****** 4.68 3.58 3.50 2.22 ****** 2000 2.11 1.43 2.77 4.14 4.61 5.05 5.95 5.84 ****** ****** 3.52 2.64 ****** 2001 1.48 1.89 3.32 4.05 ****** 5.59 6.37 5.33 4.88 5.03 2.99 3.35 ****** 2002 1.68 ****** 3.05 4.60 4.78 5.53 6.19 5.94 4.82 4.06 3.38 ****** ****** 2003 2.20 2.73 3.12 4.99 5.05 5.88 7.08 6.33 5.06 3.91 3.03 2.85 4.35 MEAN 2.03 2.26 3.10 4.34 4.84 5.40 6.06 5.87 4.50 3.86 3.30 2.58 4.00 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 3.16 3.55 3.56 5.11 7.10 6.33 10.41 7.42 7.58 5.88 4.93 4.35 5.78 1977 3.47 3.90 4.87 5.18 6.36 7.29 6.87 7.66 6.41 5.66 5.07 4.09 5.57 1978 3.02 3.41 3.82 4.98 5.54 6.56 7.74 6.74 6.42 4.77 4.23 4.36 5.13 1979 3.41 3.69 4.00 4.88 5.37 6.72 7.57 5.72 5.91 5.32 4.68 2.99 5.02 1980 2.76 3.59 3.52 4.12 5.89 6.75 6.38 7.01 5.76 5.77 4.82 4.07 5.04 1981 2.99 3.36 4.07 4.46 5.25 6.23 6.36 6.95 6.03 4.99 4.03 3.69 4.87 1982 3.08 2.79 3.28 4.77 5.70 6.10 6.00 7.29 5.54 5.81 4.40 3.45 4.85 1983 2.91 ****** ****** 4.91 6.13 6.29 7.10 7.37 6.39 4.05 4.61 ****** ****** 1984 2.73 3.35 4.55 4.55 5.04 6.68 ****** 8.24 5.47 ****** 4.36 3.60 ****** 1985 3.72 3.58 4.13 3.93 4.98 6.36 7.74 7.24 5.36 4.48 4.88 3.18 4.96 1986 3.10 3.45 4.28 6.04 5.62 7.23 7.41 7.50 6.11 5.28 4.50 3.10 5.30 1987 2.93 3.30 4.20 4.66 6.08 6.69 7.86 7.47 6.36 5.98 4.71 3.84 5.34 1988 3.36 2.90 3.75 5.08 5.76 6.59 8.07 7.33 6.57 5.47 4.08 3.60 5.21 1989 ****** ****** 4.03 5.46 5.59 6.32 6.81 10.12 7.26 7.20 5.22 2.89 ****** 1990 ****** 3.04 4.29 5.24 6.37 7.15 7.15 6.17 ****** 5.02 5.09 3.82 ****** 1991 4.01 3.36 4.87 6.18 4.90 ****** 9.62 6.99 5.92 6.77 5.55 3.29 ****** 1992 2.10 2.43 2.88 4.66 6.42 7.11 8.73 7.17 6.74 5.97 5.03 3.17 5.20 1993 2.28 3.18 4.08 4.76 5.10 6.72 9.24 8.68 6.97 4.61 4.63 3.86 5.34 1994 3.16 3.30 4.16 ****** 8.08 8.33 8.70 15.18 7.74 8.90 5.98 3.24 ****** 1995 4.04 ****** 4.24 5.41 7.60 10.29 11.37 10.97 7.18 6.17 4.18 ****** ****** 1996 2.66 4.53 4.44 6.47 10.41 12.11 14.34 15.11 9.64 7.17 4.23 3.88 7.92 1997 2.99 3.24 3.90 5.73 6.95 9.73 8.64 8.39 6.05 4.75 4.83 3.24 5.70 1998 2.31 3.51 4.54 3.86 5.93 6.90 8.80 7.42 5.91 4.66 3.24 4.51 5.13 1999 4.20 4.16 4.22 ****** ****** ****** ****** ****** 6.48 5.95 4.99 5.42 ****** 2000 4.63 3.22 4.24 5.32 7.49 8.42 10.14 7.03 ****** ****** 5.20 4.10 ****** 2001 3.77 3.74 4.68 3.72 ****** 6.34 6.98 7.16 8.41 12.77 6.09 5.07 ****** 2002 2.89 ****** 3.65 4.47 5.05 5.78 6.62 7.19 4.65 5.02 5.75 ****** ****** 2003 3.96 4.51 4.04 5.30 6.17 7.42 8.31 7.76 7.08 8.64 3.88 4.72 5.98 MEAN 3.22 3.47 4.09 4.98 6.19 7.25 8.27 8.13 6.54 6.05 4.76 3.83 5.56 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 2.98 3.18 3.58 4.78 6.77 6.95 9.42 9.13 7.16 5.48 4.98 4.33 5.73 1977 3.11 3.72 4.88 4.99 6.10 6.46 6.46 8.37 6.18 5.79 5.15 3.88 5.42 1978 2.87 3.63 4.02 5.02 5.57 5.70 6.90 7.01 6.11 4.70 3.78 4.18 4.96 1979 3.03 3.51 3.90 4.93 5.40 6.38 6.92 5.55 5.31 4.72 4.16 3.04 4.74 1980 2.55 3.35 3.43 4.64 5.26 5.94 5.79 6.45 6.05 4.91 4.37 3.76 4.71 1981 2.62 3.18 3.89 4.45 4.67 5.46 6.01 6.37 5.69 4.49 3.56 3.02 4.45 1982 2.82 2.68 3.06 4.41 5.17 5.57 5.77 6.49 4.97 5.91 4.55 3.07 4.54 1983 2.58 ****** ****** 4.64 5.85 5.99 6.78 6.87 5.78 3.87 4.25 ****** ****** 1984 2.55 3.07 4.20 4.79 4.65 6.27 ****** 7.13 5.04 ****** 4.40 3.24 ****** 1985 3.60 3.49 3.79 4.37 4.89 6.06 7.22 6.75 5.00 3.72 4.49 2.95 4.69 1986 2.79 3.27 3.76 5.69 5.63 6.58 7.00 6.93 5.29 4.77 4.07 2.97 4.89 1987 2.71 3.11 3.97 4.14 5.71 6.15 7.02 6.51 5.76 5.51 4.41 3.54 4.88 1988 2.85 2.73 3.64 4.69 5.42 5.79 6.78 5.96 5.72 4.96 3.49 3.31 4.61 1989 ****** ****** 3.78 5.19 4.86 5.70 5.88 8.33 6.21 6.67 5.01 3.04 ****** 1990 ****** 2.91 4.16 5.41 6.81 6.96 5.37 6.31 ****** 5.38 5.23 3.97 ****** 1991 3.82 3.65 4.95 6.25 4.92 ****** 7.57 5.45 5.69 6.59 5.02 3.05 ****** 1992 1.64 2.12 2.86 5.01 6.32 6.24 8.03 6.18 7.00 5.63 4.97 3.03 4.92 1993 2.08 2.88 3.71 4.41 5.98 6.61 8.10 8.11 6.85 4.23 4.16 3.95 5.09 1994 3.12 3.11 3.84 ****** 7.96 7.27 7.75 12.08 7.25 6.78 5.57 2.91 ****** 1995 3.94 ****** 4.29 5.24 7.14 9.79 10.96 10.91 5.90 5.43 3.98 ****** ****** 1996 2.22 3.94 4.27 6.46 9.10 11.26 11.91 13.49 10.41 6.68 4.25 3.63 7.30 1997 2.80 3.17 4.12 5.52 6.03 8.87 7.64 7.15 5.14 4.98 4.16 2.95 5.21 1998 1.93 2.54 5.67 5.15 7.16 6.34 7.70 6.96 6.41 4.70 3.13 3.74 5.12 1999 3.72 3.89 4.38 ****** ****** ****** ****** ****** 6.82 4.98 3.88 4.96 ****** 2000 4.19 2.91 3.90 4.88 6.41 6.83 7.17 6.01 ****** ****** 4.97 3.76 ****** 2001 2.90 3.25 4.08 3.70 ****** 5.85 6.53 6.83 7.27 10.56 5.14 4.44 ****** 2002 2.40 ****** 4.04 4.83 4.43 5.19 5.59 6.48 4.51 4.42 5.06 ****** ****** 2003 3.20 3.79 4.17 5.02 5.09 6.43 8.31 6.33 6.17 5.73 4.02 4.43 5.23 MEAN 2.89 3.22 4.02 4.95 5.90 6.64 7.34 7.42 6.15 5.45 4.44 3.57 5.16 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 1976 -21.2 5 -19.2 4 -17.0 10 -5.0 1 0.2 2 8.0 9 9.0 3 5.0 29 3.0 29 1.2 3 -5.0 15 -9.2 25 -21.2 1977 -25.0 15 -23.0 2 -7.5 15 0.0 23 2.0 9 3.0 1 7.0 2 6.0 17 2.0 21 -2.5 24 -6.5 28 -15.5 26 -25.0 1978 -22.0 16 -15.0 13 -11.0 9 -6.0 15 -1.0 4 -1.0 3 4.5 10 3.5 14 2.0 21 -2.5 13 -10.0 24 -9.5 18 -22.0 1979 -22.5 28 -18.0 1 -18.0 6 -3.0 30 2.5 1 3.0 12 6.0 8 6.0 2 -2.0 27 -2.5 29 -11.5 26 -24.0 28 -24.0 1980 -25.0 4 -20.0 8 -15.0 6 -3.0 19 2.0 2 7.0 1 7.0 2 7.0 31 -2.0 24 -4.0 31 -8.0 28 -13.5 13 -25.0 1981 -23.0 14 ***** ** -10.0 5 -5.5 2 2.0 4 5.5 2 ***** ** 6.0 31 -2.5 26 -3.5 26 -9.0 25 -9.0 10 ***** 1982 -15.0 22 -17.5 20 -10.5 9 -5.0 1 6.5 8 7.5 3 10.5 21 7.5 29 2.0 27 -1.6 22 -12.5 30 -18.5 10 -18.5 1983 -33.0 28 ***** ** ***** ** -4.5 2 2.5 3 7.5 1 10.0 2 2.0 29 2.0 27 -6.5 18 -8.5 17 ***** ** ***** 1984 -22.5 27 -23.0 1 -11.5 2 -4.5 27 -5.5 2 5.0 1 ***** ** 7.5 29 -3.5 30 ***** ** -6.5 23 -15.5 12 ***** 1985 -17.0 5 -15.0 8 -11.5 1 -5.0 10 -1.5 14 2.0 9 4.5 27 6.0 28 -1.5 27 -9.5 31 -8.5 30 -22.0 26 -22.0 1986 -19.5 1 -15.0 17 -9.5 14 -4.5 2 2.0 6 2.5 1 6.5 8 3.5 11 2.0 11 -3.5 26 -7.0 21 -17.0 24 -19.5 1987 -20.0 17 -14.0 12 -8.0 15 -5.0 2 4.0 1 7.5 1 10.0 15 9.5 30 3.0 30 -3.0 12 -9.0 30 -11.0 2 -20.0 1988 -17.5 3 -19.0 6 -7.5 17 -5.0 3 2.5 6 5.0 24 8.5 27 11.0 27 4.5 30 -2.0 23 -9.0 24 -16.5 30 -19.0 1989 ***** ** ***** ** -10.0 31 -6.5 1 1.5 1 7.5 1 12.0 7 5.0 18 -1.5 14 -3.0 23 -8.5 18 -17.0 7 ***** 1990 ***** ** -25.5 13 -12.0 1 -4.5 7 1.0 10 4.0 1 6.5 20 3.0 20 ***** ** -4.5 15 -8.5 30 -21.0 28 ***** 1991 -15.0 29 -17.5 14 -8.5 8 -4.5 13 -1.5 4 ***** ** 7.0 2 4.0 26 0.5 21 -2.0 31 -8.0 28 -27.0 27 ***** 1992 -28.5 5 -28.0 13 -19.0 11 -8.0 2 0.0 5 3.0 19 5.0 1 5.0 11 1.0 12 -6.5 31 -9.0 30 -23.0 28 -28.5 1993 -26.5 22 -27.5 18 -11.0 13 -3.0 6 -0.5 1 3.0 5 5.5 23 7.5 10 0.0 30 -3.5 9 -8.0 17 -9.5 13 -27.5 1994 -20.0 28 -12.5 19 -11.0 14 ***** ** -2.5 7 0.0 15 8.0 2 7.5 22 -1.0 25 -1.5 12 -11.4 19 -20.0 8 ***** 1995 -11.0 21 ***** ** -8.0 6 -5.0 1 -0.5 10 4.0 14 4.5 2 6.0 10 0.5 25 -4.5 14 -18.5 29 ***** ** ***** 1996 -28.5 27 -14.0 6 -8.0 8 -3.5 6 3.0 2 2.0 7 1.0 26 5.0 5 ***** ** ***** ** ***** ** ***** ** ***** 1997 -23.0 19 -20.0 8 -13.5 9 -6.0 14 0.0 6 4.0 4 7.0 6 5.0 30 ***** ** -3.0 27 -5.5 29 -18.0 22 ***** 1998 ***** ** -23.0 3 -14.5 4 -4.0 25 0.0 2 5.0 1 9.0 3 8.0 15 3.0 7 -3.0 26 -7.8 18 -10.0 23 ***** 1999 -20.0 28 -21.0 7 -8.8 13 ***** ** ***** ** ***** ** ***** ** ***** ** 1.0 28 -4.0 24 -7.5 5 -15.5 6 ***** 2000 -15.0 30 -26.0 11 -14.0 2 -2.0 2 0.5 3 2.5 25 6.5 1 6.0 21 ***** ** ***** ** -9.5 28 -21.0 17 ***** 2001 -29.0 29 -24.0 1 -5.5 12 -5.5 14 ***** ** 3.0 19 5.0 31 5.0 4 3.0 8 0.0 8 -9.0 21 -13.0 19 ***** 2002 -26.0 25 ***** ** -9.0 11 -3.0 4 0.0 5 1.0 4 6.0 1 5.0 29 3.0 20 -3.3 25 -7.0 30 ***** ** ***** 2003 -20.0 31 -25.0 1 -11.0 3 -4.0 2 -3.0 9 3.0 6 5.0 1 6.0 12 0.0 22 -1.0 7 -11.0 24 -12.0 13 -25.0 LOW. -33.0 28 -28.0 13 -19.0 11 -8.0 2 -5.5 2 -1.0 3 1.0 26 2.0 29 -3.5 30 -9.5 31 -18.5 29 -27.0 27 -33.0 YEAR 1983 1992 1992 1992 1984 1978 1996 1983 1984 1985 1995 1991 1983 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 1976 8.2 18 7.0 10 10.0 31 18.2 29 26.0 30 32.0 26 36.0 25 35.0 1 30.0 1 26.2 1 17.0 11 12.2 16 36.0 1977 7.2 7 12.0 5 20.0 18 22.0 29 28.0 14 34.5 26 36.0 15 34.0 15 29.5 4 26.5 2 14.0 2 9.5 1 36.0 1978 9.0 20 12.0 19 16.5 29 21.5 10 27.5 26 33.5 30 34.5 1 33.5 27 31.5 1 26.5 1 15.0 7 14.0 2 34.5 1979 13.5 3 11.0 28 16.0 27 23.0 9 25.0 31 31.5 28 34.5 21 31.5 2 30.5 13 24.5 4 20.5 11 12.5 6 34.5 1980 10.0 29 9.0 23 14.5 31 23.5 22 26.5 21 32.0 22 33.5 30 33.0 20 29.5 3 27.5 5 17.5 11 14.0 3 33.5 1981 10.5 25 11.0 20 18.0 20 23.0 22 28.0 27 31.5 24 34.5 4 34.5 20 30.5 20 24.0 5 18.5 1 13.0 12 34.5 1982 8.0 4 8.0 28 12.5 24 24.5 28 27.5 19 33.5 12 34.5 30 36.5 3 29.5 5 23.0 1 16.5 21 7.0 4 36.5 1983 8.0 13 ***** ** ***** ** 21.0 17 26.0 15 32.5 18 34.5 4 34.5 3 32.5 3 26.0 2 21.0 2 ***** ** ***** 1984 9.5 1 13.0 13 20.0 10 21.5 9 27.0 22 32.0 13 ***** ** 34.5 17 32.0 5 ***** ** 19.0 2 12.5 1 ***** 1985 12.5 27 12.5 25 18.5 23 22.5 20 29.0 31 34.5 28 35.0 24 32.5 1 31.0 3 27.5 1 20.0 2 14.5 1 35.0 1986 8.0 14 9.0 28 15.0 30 21.0 21 27.0 30 34.5 29 34.0 22 32.5 16 29.0 14 26.5 4 19.5 3 6.0 1 34.5 1987 8.5 26 8.5 25 13.5 27 24.0 18 45.0 21 31.0 5 33.5 20 33.5 27 32.5 7 26.0 2 20.0 14 12.0 11 45.0 1988 9.0 8 8.5 29 17.5 26 21.0 24 29.0 27 31.5 14 35.5 12 34.0 2 33.0 10 26.5 4 21.5 4 15.5 4 35.5 1989 ***** ** ***** ** 15.5 26 23.0 15 30.0 25 35.0 27 35.5 1 34.0 5 33.0 1 28.5 9 17.0 5 14.0 1 ***** 1990 ***** ** 7.0 20 15.0 31 25.0 28 29.0 15 34.0 30 34.0 15 34.0 1 ***** ** 28.0 17 23.0 5 18.0 3 ***** 1991 9.0 22 11.5 26 19.0 22 25.5 29 28.0 30 ***** ** 37.0 9 36.0 7 34.0 8 27.0 10 21.0 2 9.0 13 ***** 1992 5.0 31 7.0 21 11.5 29 20.5 21 27.0 22 33.0 30 34.0 2 34.0 6 29.0 25 29.0 6 24.0 4 11.0 2 34.0 1993 8.0 8 11.0 28 15.0 30 22.5 19 27.0 27 32.5 30 33.0 22 34.0 14 33.5 6 26.0 1 20.0 4 16.5 19 34.0 1994 15.0 1 12.0 8 18.0 30 ***** ** 29.0 31 32.5 26 36.5 21 36.5 9 32.0 4 23.0 1 18.0 5 10.0 29 ***** 1995 11.0 11 ***** ** 19.0 31 20.5 30 25.0 22 31.0 15 ***** ** 35.0 8 32.0 1 26.0 3 22.0 17 ***** ** ***** 1996 8.0 30 17.0 11 15.5 30 21.5 30 29.5 31 30.0 3 35.0 2 33.0 21 32.0 10 30.0 2 20.0 1 16.0 5 35.0 1997 11.5 12 13.0 21 15.0 2 24.5 27 28.5 27 31.5 30 37.0 18 35.0 1 31.0 1 26.0 3 20.0 3 11.0 8 37.0 1998 8.0 24 8.0 7 20.0 28 25.0 14 29.0 28 32.0 25 37.0 12 36.0 19 32.5 3 27.0 1 22.0 18 20.0 13 37.0 1999 16.0 1 13.5 26 19.0 31 ***** ** ***** ** ***** ** ***** ** ***** ** 36.0 1 28.0 1 18.0 6 13.0 31 ***** 2000 12.0 1 11.0 28 17.0 24 28.0 19 31.0 29 35.0 23 35.0 1 35.0 3 ***** ** ***** ** 19.0 5 10.0 1 ***** 2001 10.0 15 12.0 28 20.0 30 25.0 28 ***** ** 35.0 5 37.0 8 35.0 3 31.0 5 27.0 5 21.0 4 13.0 29 ***** 2002 12.0 1 ***** ** 20.0 12 24.0 27 29.0 31 31.0 13 ***** ** 34.0 10 33.0 2 28.0 2 20.0 12 ***** ** ***** 2003 10.0 14 12.0 26 19.0 14 28.0 6 31.0 14 31.0 22 35.0 14 33.0 2 31.0 2 28.6 1 27.0 11 10.4 19 35.0 HIG. 16.0 1 17.0 11 20.0 18 28.0 19 45.0 21 35.0 27 37.0 9 36.5 3 36.0 1 30.0 2 27.0 11 20.0 13 45.0 YEAR 1999 1996 1977 2000 1987 1989 1991 1982 1999 1996 2003 1998 1987 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 1976 25.0 25 31.2 11 16.0 21 10.0 6 7.0 15 0.0 ** 4.5 23 0.0 ** 0.0 ** 11.0 29 10.0 29 15.0 11 31.2 1977 14.0 29 8.0 7 27.0 4 27.0 24 9.0 24 0.0 ** 0.0 ** 2.0 1 0.0 ** 28.0 26 42.0 5 46.0 22 46.0 1978 12.0 26 25.0 23 29.0 13 3.0 11 8.0 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.0 31 9.0 1 43.0 6 43.0 1979 40.0 9 21.0 10 28.0 29 5.0 17 15.0 8 4.0 6 0.0 ** 0.0 ** 0.0 ** 3.0 27 9.5 30 36.0 15 40.0 1980 16.0 21 60.0 11 28.0 20 12.5 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 8.2 30 14.5 23 11.0 19 60.0 1981 45.0 12 30.0 21 18.2 27 14.0 11 9.0 16 0.0 ** 0.0 ** 0.0 ** 0.0 ** 5.0 13 28.0 5 11.2 25 45.0 1982 18.0 29 25.0 14 32.5 25 6.0 18 11.5 21 0.0 ** 0.0 ** 0.0 ** 0.0 ** 13.0 29 34.5 10 23.0 6 34.5 1983 23.0 15 ***** ** ***** ** 14.0 1 16.0 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 5.5 13 ***** ** ***** 1984 37.0 17 25.0 24 33.8 20 11.0 17 21.0 10 0.0 ** ***** ** 0.0 ** 0.0 ** ***** ** 15.0 11 31.0 4 ***** 1985 21.0 2 29.0 1 11.5 24 3.0 25 13.0 17 3.0 12 0.0 ** 0.0 ** 0.0 ** 0.0 ** 21.0 13 57.0 19 57.0 1986 10.0 27 9.0 6 22.0 16 20.5 8 30.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 50.0 30 40.0 20 50.0 1987 20.0 27 21.0 10 16.0 2 13.0 27 9.5 31 0.0 ** 10.2 28 0.0 ** 0.0 ** 15.0 23 17.5 3 47.0 23 47.0 1988 12.0 13 36.0 2 26.0 5 15.0 26 0.0 ** 0.0 ** 5.0 27 0.0 ** 0.0 ** 3.2 14 29.0 13 16.0 17 36.0 1989 ***** ** ***** ** 26.0 29 8.0 28 7.0 7 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 17.0 17 47.5 4 ***** 1990 ***** ** 17.0 15 29.0 14 32.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** 3.0 27 8.0 13 8.0 25 ***** 1991 11.2 21 27.0 1 50.0 6 5.6 17 0.0 ** ***** ** 0.0 ** 0.0 ** 0.0 ** 27.0 15 15.0 16 45.0 10 ***** 1992 45.0 17 29.0 24 10.0 16 18.0 27 27.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.0 12 13.0 14 45.0 1993 53.0 8 30.0 21 30.0 5 53.0 27 13.5 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 24.0 12 3.0 15 53.0 1994 23.0 24 40.0 1 35.0 12 ***** ** 6.5 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 19 46.0 7 10.0 5 ***** 1995 20.0 13 ***** ** 9.0 18 23.0 21 12.0 25 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.0 22 0.0 ** ***** ** ***** 1996 20.0 12 29.0 19 46.0 11 26.0 14 4.5 11 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 17.0 23 46.0 1997 20.0 16 0.0 ** 12.0 29 18.0 17 11.0 5 4.0 21 0.0 ** 0.0 ** 0.0 ** 0.0 ** 21.0 3 25.0 21 25.0 1998 35.0 5 32.0 9 53.0 30 9.0 28 0.0 ** 3.0 18 0.0 ** 3.0 7 0.0 ** 8.0 12 0.0 ** 15.0 5 53.0 1999 16.0 26 34.0 21 18.0 14 ***** ** ***** ** ***** ** ***** ** ***** ** 0.0 ** 0.0 ** 3.0 1 26.0 4 ***** 2000 7.0 19 27.0 14 36.0 25 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** ***** ** 10.0 9 24.0 2 ***** 2001 25.0 24 20.0 18 26.0 25 0.0 ** ***** ** 8.0 15 0.0 ** 0.0 ** 2.0 22 11.0 29 8.0 14 35.0 6 ***** 2002 37.0 8 ***** ** 22.0 28 20.0 2 10.0 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 17.0 6 ***** ** ***** 2003 16.0 16 31.0 14 31.0 26 14.0 21 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 8.0 29 32.0 6 32.0 HIG. 53.0 8 60.0 11 53.0 30 53.0 27 30.0 4 8.0 15 10.2 28 3.0 7 2.0 22 28.0 26 50.0 30 57.0 19 60.0 YEAR 1993 1980 1998 1993 1986 2001 1987 1998 2001 1977 1986 1985 1980 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1976 68.0 91.7 41.0 22.0 7.0 0.0 4.5 0.0 0.0 11.0 29.0 29.0 303.2 66.2 9.6 1.5 22.8 1977 43.0 8.0 46.0 68.0 20.0 0.0 0.0 2.0 0.0 73.0 94.0 93.0 447.0 21.7 19.7 0.4 58.2 1978 31.0 44.5 73.0 6.0 8.0 0.0 0.0 0.0 0.0 3.0 25.0 94.0 284.5 52.2 4.9 0.0 42.9 1979 88.0 36.0 40.0 8.0 60.0 4.0 0.0 0.0 0.0 3.0 16.5 89.0 344.5 47.6 20.9 0.0 31.5 1980 47.0 146.0 85.0 24.5 0.0 0.0 0.0 0.0 0.0 8.2 44.0 14.0 368.7 75.4 6.6 0.0 18.0 1981 94.0 66.2 30.8 38.0 14.2 0.0 0.0 0.0 0.0 13.4 48.0 19.4 324.0 59.0 16.1 0.0 24.9 1982 37.0 48.2 84.0 8.0 21.5 0.0 0.0 0.0 0.0 65.2 79.5 31.0 374.4 45.2 7.9 0.0 46.9 1983 85.4 ****** ****** 37.4 23.8 0.0 0.0 0.0 0.0 0.0 9.9 ****** ****** 54.6 39.1 0.0 6.3 1984 51.0 39.0 124.8 18.6 21.0 0.0 ****** 0.0 0.0 ****** 29.2 50.5 ****** 64.3 11.9 0.0 23.9 1985 29.0 47.0 31.5 4.2 18.2 3.0 0.0 0.0 0.0 0.0 32.0 108.0 272.9 39.4 9.3 0.0 51.3 1986 18.5 22.0 77.0 80.5 58.2 0.0 0.0 0.0 0.0 0.0 188.2 61.2 505.6 23.2 27.4 0.0 49.3 1987 22.4 39.2 109.0 39.0 19.0 0.0 28.2 0.0 0.0 51.5 17.5 131.0 456.8 37.3 12.7 6.2 43.8 1988 35.2 94.0 93.0 43.0 0.0 0.0 5.0 0.0 0.0 5.2 66.5 39.0 380.9 58.3 11.3 1.3 29.1 1989 ****** ****** 92.0 32.2 14.0 0.0 0.0 0.0 0.0 0.0 44.5 111.1 ****** 31.3 15.7 0.0 53.0 1990 ****** 55.0 74.0 47.0 0.0 0.0 0.0 0.0 ****** 3.0 8.0 16.0 ****** 63.5 23.2 0.0 13.3 1991 29.4 54.0 72.0 14.3 0.0 ****** 0.0 0.0 0.0 31.0 27.0 202.0 ****** 36.2 3.3 0.0 60.5 1992 80.0 33.0 29.0 49.0 37.0 0.0 0.0 0.0 0.0 0.0 4.0 42.0 274.0 51.8 31.4 0.0 16.8 1993 90.0 85.0 50.0 99.0 23.5 0.0 0.0 0.0 0.0 0.0 67.5 3.0 418.0 53.8 29.3 0.0 16.9 1994 49.0 56.0 84.0 ****** 21.5 0.0 0.0 0.0 0.0 17.0 214.0 24.0 ****** 40.6 4.6 0.0 54.8 1995 24.0 ****** 14.0 47.0 43.0 0.0 0.0 0.0 0.0 3.0 0.0 ****** ****** 29.0 68.7 0.0 2.3 1996 63.0 91.0 194.0 51.5 4.5 0.0 0.0 0.0 0.0 0.0 0.0 17.0 421.0 82.7 13.3 0.0 4.0 1997 31.0 0.0 24.3 61.0 11.0 4.0 0.0 0.0 0.0 0.0 40.0 65.0 236.3 23.4 32.2 0.0 44.4 1998 79.0 70.0 152.0 11.0 0.0 3.0 0.0 3.0 0.0 17.0 0.0 30.0 365.0 82.5 3.8 0.8 12.9 1999 48.5 90.0 54.0 ****** ****** ****** ****** ****** 0.0 0.0 3.0 64.0 ****** 74.2 ***** 0.0 25.8 2000 11.5 50.0 51.0 0.0 0.0 0.0 0.0 0.0 ****** ****** 21.0 97.0 ****** 48.8 0.0 0.0 51.2 2001 45.0 24.0 59.0 0.0 ****** 11.0 0.0 0.0 2.0 14.0 18.0 139.0 ****** 41.0 3.5 0.6 54.8 2002 69.0 ****** 29.0 61.0 10.0 0.0 0.0 0.0 0.0 0.0 26.0 ****** ****** 50.3 36.4 0.0 13.3 2003 23.0 68.0 68.0 44.0 0.0 0.0 0.0 0.0 0.0 0.0 8.0 91.0 302.0 52.6 14.6 0.0 32.8 MEAN 49.7 56.6 69.7 35.2 16.7 1.0 1.5 0.2 0.1 12.3 41.4 66.4 350.8 50.2 15.1 0.4 34.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 5 6 3 3 1 0 1 0 0 1 4 4 28 1977 5 1 3 4 3 0 0 1 0 8 5 4 34 1978 5 6 5 2 1 0 0 0 0 1 3 5 28 1979 4 2 3 2 6 1 0 0 0 1 2 6 27 1980 6 4 6 2 0 0 0 0 0 1 4 2 25 1981 5 5 5 4 2 0 0 0 0 5 4 2 32 1982 3 5 5 2 2 0 0 0 0 7 5 2 31 1983 6 *** *** 7 3 0 0 0 0 0 3 *** *** 1984 3 3 10 2 1 0 *** 0 0 *** 4 4 *** 1985 3 4 5 2 2 1 0 0 0 0 3 9 29 1986 3 3 7 7 5 0 0 0 0 0 9 4 38 1987 2 4 12 5 3 0 5 0 0 5 1 6 43 1988 5 6 7 8 0 0 1 0 0 2 5 4 38 1989 *** *** 8 8 2 0 0 0 0 0 6 5 *** 1990 *** 4 5 2 0 0 0 0 *** 1 1 3 *** 1991 6 4 5 5 0 *** 0 0 0 2 2 9 *** 1992 4 2 3 4 3 0 0 0 0 0 2 4 22 1993 4 3 2 4 2 0 0 0 0 0 5 1 21 1994 3 3 5 *** 5 0 0 0 0 6 9 4 *** 1995 2 *** 2 3 6 0 0 0 0 1 0 *** *** 1996 5 7 6 6 1 0 0 0 0 0 0 1 26 1997 2 0 5 7 1 1 0 0 0 0 4 3 23 1998 4 6 9 2 0 1 0 1 0 3 0 3 29 1999 7 7 7 *** *** *** *** *** 0 0 1 6 *** 2000 3 5 3 0 0 0 0 0 *** *** 3 6 *** 2001 3 2 4 0 *** 2 0 0 1 2 3 10 *** 2002 5 *** 3 5 1 0 0 0 0 0 2 *** *** 2003 2 4 4 6 0 0 0 0 0 0 1 7 24 MEAN 4 4 5 4 2 0 0 0 0 2 3 5 29 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 1976 5 6 3 3 1 0 1 0 0 1 4 4 28 1977 5 1 3 4 3 0 0 1 0 6 5 4 32 1978 5 6 5 2 1 0 0 0 0 1 3 5 28 1979 4 2 3 2 6 1 0 0 0 1 2 6 27 1980 6 4 6 2 0 0 0 0 0 1 4 2 25 1981 5 5 5 4 2 0 0 0 0 5 4 2 32 1982 3 5 5 2 2 0 0 0 0 7 5 2 31 1983 6 *** *** 7 3 0 0 0 0 0 3 *** *** 1984 3 3 10 2 1 0 *** 0 0 *** 4 4 *** 1985 3 4 5 2 2 1 0 0 0 0 3 9 29 1986 3 3 7 7 5 0 0 0 0 0 9 4 38 1987 2 4 12 5 3 0 5 0 0 5 1 6 43 1988 5 6 7 8 0 0 1 0 0 2 5 4 38 1989 *** *** 8 8 2 0 0 0 0 0 6 5 *** 1990 *** 4 5 2 0 0 0 0 *** 1 1 3 *** 1991 6 4 5 5 0 *** 0 0 0 2 2 9 *** 1992 4 2 3 4 3 0 0 0 0 0 2 4 22 1993 4 3 2 4 2 0 0 0 0 0 5 1 21 1994 3 3 5 *** 5 0 0 0 0 6 9 4 *** 1995 2 *** 2 3 6 0 0 0 0 1 0 *** *** 1996 5 7 6 6 1 0 0 0 0 0 0 1 26 1997 2 0 5 7 1 1 0 0 0 0 4 3 23 1998 4 6 9 2 0 1 0 1 0 3 0 3 29 1999 7 7 7 *** *** *** *** *** 0 0 1 6 *** 2000 3 5 3 0 0 0 0 0 *** *** 3 6 *** 2001 3 2 4 0 *** 2 0 0 1 2 3 10 *** 2002 5 *** 3 5 1 0 0 0 0 0 2 *** *** 2003 2 4 4 6 0 0 0 0 0 0 1 7 24 MEAN 4 4 5 4 2 0 0 0 0 2 3 5 29 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 1976 2 5 3 1 0 0 0 0 0 1 1 1 14 1977 2 0 2 4 0 0 0 0 0 3 3 3 17 1978 1 1 3 0 0 0 0 0 0 0 0 3 8 1979 4 2 1 0 2 0 0 0 0 0 0 3 12 1980 2 3 3 2 0 0 0 0 0 0 3 1 14 1981 3 2 1 2 0 0 0 0 0 0 2 1 11 1982 2 1 4 0 2 0 0 0 0 5 3 1 18 1983 4 *** *** 1 1 0 0 0 0 0 0 *** *** 1984 2 2 5 1 1 0 *** 0 0 *** 1 2 *** 1985 1 1 1 0 1 0 0 0 0 0 1 2 7 1986 1 0 3 4 2 0 0 0 0 0 7 1 18 1987 1 1 5 1 0 0 1 0 0 3 1 4 17 1988 2 3 5 1 0 0 0 0 0 0 2 2 15 1989 *** *** 4 0 0 0 0 0 0 0 1 3 *** 1990 *** 3 2 2 0 0 0 0 *** 0 0 0 *** 1991 1 2 2 0 0 *** 0 0 0 1 2 7 *** 1992 3 1 2 3 1 0 0 0 0 0 0 2 12 1993 2 3 2 4 2 0 0 0 0 0 3 0 16 1994 3 2 3 *** 0 0 0 0 0 0 7 1 *** 1995 1 *** 0 3 1 0 0 0 0 0 0 *** *** 1996 3 4 6 1 0 0 0 0 0 0 0 1 15 1997 2 0 1 3 1 0 0 0 0 0 2 3 12 1998 4 2 4 0 0 0 0 0 0 0 0 1 11 1999 2 4 3 *** *** *** *** *** 0 0 0 3 *** 2000 0 1 1 0 0 0 0 0 *** *** 1 4 *** 2001 2 1 2 0 *** 0 0 0 0 1 0 6 *** 2002 3 *** 1 4 1 0 0 0 0 0 1 *** *** 2003 1 3 3 1 0 0 0 0 0 0 0 3 11 MEAN 2 2 3 1 1 0 0 0 0 1 1 2 13 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 76 74 76 77 72 58 58 58 65 68 75 83 70 1977 82 80 77 71 64 60 52 59 60 68 83 77 69 1978 80 82 83 74 66 64 55 57 64 63 83 81 71 1979 77 81 78 67 67 57 54 54 54 65 78 80 68 1980 78 79 75 64 52 49 48 52 56 68 77 82 65 1981 78 80 73 63 57 50 45 47 56 67 70 74 63 1982 79 75 75 69 52 43 39 43 50 79 85 87 65 1983 83 *** *** 80 63 47 46 54 56 64 74 *** *** 1984 81 81 84 72 62 64 *** 57 64 *** 76 85 *** 1985 79 81 75 76 64 61 58 53 58 66 76 80 69 1986 80 80 77 75 58 61 47 65 60 62 78 80 69 1987 77 77 76 68 56 42 47 42 51 67 69 75 62 1988 77 79 66 60 50 46 47 45 48 59 67 72 60 1989 *** *** 74 69 53 43 42 60 57 66 72 73 *** 1990 *** 76 76 67 64 50 40 59 *** 69 74 76 *** 1991 83 79 79 75 69 *** 60 49 63 75 76 78 *** 1992 76 68 67 74 80 70 67 58 57 64 69 73 69 1993 69 73 70 67 55 51 45 69 70 68 66 63 64 1994 66 65 69 *** 77 46 38 71 71 82 73 71 *** 1995 70 *** 62 72 74 84 76 74 69 72 66 *** *** 1996 72 78 75 72 65 81 81 83 58 61 69 75 73 1997 69 68 68 68 63 66 61 61 *** 73 86 78 *** 1998 67 81 77 79 58 71 60 63 64 69 64 69 69 1999 67 71 76 *** *** *** *** *** 62 72 73 70 *** 2000 70 67 72 64 66 61 57 57 *** *** 78 69 *** 2001 62 69 71 73 *** 64 58 54 67 74 69 79 *** 2002 68 *** 67 73 68 65 59 57 57 72 76 *** *** 2003 68 76 75 76 72 70 62 66 69 65 74 73 71 MEAN 74 76 74 71 63 59 54 58 60 68 74 76 67 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 61 62 59 48 41 23 30 25 31 34 51 56 43 1977 64 59 41 41 34 26 20 25 25 36 52 63 41 1978 56 53 49 34 29 25 26 22 25 27 50 52 37 1979 57 48 48 32 34 27 24 21 25 31 38 55 37 1980 55 54 51 30 30 24 21 23 23 33 45 50 37 1981 51 53 42 33 30 25 19 21 26 33 36 41 34 1982 53 50 45 31 28 21 18 21 22 44 53 70 38 1983 71 *** *** 43 33 21 21 21 24 24 38 *** *** 1984 63 67 57 33 31 24 *** 24 21 *** 42 67 *** 1985 53 55 46 27 24 21 22 25 19 24 43 65 35 1986 64 60 58 49 32 26 23 25 23 28 54 63 42 1987 55 53 56 34 28 23 26 23 24 44 40 55 38 1988 60 63 44 39 27 23 24 22 23 27 39 42 36 1989 *** *** 50 42 30 21 20 30 26 36 49 55 *** 1990 *** 64 54 39 27 24 21 20 *** 28 39 50 *** 1991 70 61 55 39 24 *** 26 19 22 41 50 63 *** 1992 64 59 53 40 38 29 26 25 28 33 41 60 41 1993 60 65 60 39 30 26 28 28 25 29 43 43 40 1994 49 48 48 *** 43 30 24 41 34 55 65 56 *** 1995 54 *** 40 43 43 40 31 30 27 35 32 *** *** 1996 67 63 61 50 48 41 48 45 33 34 40 50 48 1997 51 53 53 47 37 35 23 23 22 26 52 59 40 1998 55 63 52 25 28 24 27 22 22 27 23 43 34 1999 70 59 49 *** *** *** *** *** 23 33 47 74 *** 2000 76 66 51 31 32 26 29 21 *** *** 56 69 *** 2001 75 64 44 21 *** 23 20 22 33 66 57 74 *** 2002 63 *** 32 35 27 21 20 23 15 26 59 *** *** 2003 73 73 50 41 34 28 24 23 24 46 37 72 44 MEAN 61 59 50 37 32 26 25 25 25 35 45 58 40 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 67 69 68 52 49 31 35 36 33 40 61 67 51 1977 71 66 54 48 40 28 23 33 29 45 61 71 47 1978 64 66 61 44 36 28 28 27 30 33 54 59 44 1979 61 56 55 42 45 33 27 25 27 34 42 64 43 1980 63 61 58 40 32 25 23 26 31 36 50 60 42 1981 55 59 50 42 33 27 22 24 30 37 39 44 39 1982 58 55 49 33 31 23 21 24 24 54 64 76 43 1983 75 *** *** 49 39 26 24 25 28 28 44 *** *** 1984 72 71 64 44 35 27 *** 27 25 *** 51 70 *** 1985 62 67 52 40 31 25 25 27 24 28 50 71 42 1986 71 66 62 55 41 29 26 28 26 33 60 69 47 1987 59 61 62 38 33 27 31 25 27 48 46 61 43 1988 64 69 52 42 31 24 25 23 24 31 40 49 40 1989 *** *** 54 49 32 23 22 31 29 42 58 66 *** 1990 *** 71 63 53 38 31 21 28 *** 39 50 62 *** 1991 78 79 68 49 31 *** 27 21 29 50 53 70 *** 1992 70 66 63 55 48 32 32 27 38 39 48 67 49 1993 67 67 64 47 44 33 34 36 32 33 46 51 46 1994 57 54 54 *** 54 33 27 41 39 53 69 61 *** 1995 65 *** 50 52 53 51 39 39 28 38 40 *** *** 1996 68 69 68 61 54 51 49 53 45 42 47 55 55 1997 59 63 67 57 43 43 26 25 24 33 52 62 46 1998 60 55 80 42 42 30 31 26 31 31 27 44 42 1999 72 62 59 *** *** *** *** *** 35 36 41 77 *** 2000 80 73 54 36 37 30 28 22 *** *** 62 74 *** 2001 69 66 46 28 *** 27 25 27 37 67 58 74 *** 2002 63 *** 46 48 30 24 22 26 19 29 60 *** *** 2003 70 75 59 46 34 30 34 24 26 39 43 79 47 MEAN 66 65 59 46 39 30 28 29 30 39 51 64 46 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 1976 21 25 25 3 0 0 0 0 0 0 7 14 95 1977 29 23 12 0 0 0 0 0 0 0 13 26 103 1978 25 19 25 4 0 0 0 0 0 0 14 17 104 1979 21 13 18 0 0 0 0 0 0 0 17 21 90 1980 25 26 17 0 0 0 0 0 0 1 9 24 102 1981 17 *** 8 1 0 0 *** 0 0 0 7 26 *** 1982 30 27 17 2 0 0 0 0 0 0 19 27 122 1983 27 *** *** 2 0 0 0 0 0 10 24 *** *** 1984 31 26 9 1 1 0 *** 0 0 *** 13 27 *** 1985 25 26 21 3 0 0 0 0 0 7 15 27 124 1986 27 25 21 1 0 0 0 0 0 0 15 27 116 1987 28 19 19 7 0 0 0 0 0 0 17 25 115 1988 31 28 9 5 0 0 0 0 0 0 13 20 106 1989 *** *** 19 4 0 0 0 0 0 0 17 28 *** 1990 *** 27 16 7 0 0 0 0 *** 4 18 31 *** 1991 20 25 10 1 0 *** 0 0 0 0 15 21 *** 1992 30 28 26 3 0 0 0 0 0 4 14 21 126 1993 25 20 14 0 0 0 0 0 0 0 9 23 91 1994 23 23 14 *** 0 0 0 0 0 0 10 22 *** 1995 22 *** 15 3 0 0 0 0 0 5 21 *** *** 1996 27 20 16 0 0 0 0 0 *** *** *** *** *** 1997 27 22 19 3 0 0 0 0 *** 0 2 24 *** 1998 *** 21 14 1 0 0 0 0 0 0 20 17 *** 1999 21 19 14 *** *** *** *** *** 0 1 9 23 *** 2000 26 25 17 0 0 0 0 0 *** *** 12 16 *** 2001 28 20 11 1 *** 0 0 0 0 0 9 13 *** 2002 26 *** 14 0 0 0 0 0 0 0 13 *** *** 2003 22 18 14 1 0 0 0 0 0 0 13 17 85 MEAN 25 23 16 2 0 0 0 0 0 1 14 22 103 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 *** 0 0 0 0 *** 0 0 0 0 0 *** 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 0 *** *** 0 0 0 0 0 0 0 0 *** *** 1984 0 0 0 0 0 0 *** 0 0 *** 0 0 *** 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 *** *** 0 0 0 0 0 0 0 0 0 0 *** 1990 *** 0 0 0 0 0 0 0 *** 0 0 0 *** 1991 0 0 0 0 0 *** 0 0 0 0 0 0 *** 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 *** 0 0 0 0 0 0 0 0 *** 1995 0 *** 0 0 0 0 0 0 0 0 0 *** *** 1996 0 0 0 0 0 0 0 0 *** *** *** *** *** 1997 0 0 0 0 0 0 0 0 *** 0 0 0 *** 1998 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1999 0 0 0 *** *** *** *** *** 0 0 0 0 *** 2000 0 0 0 0 0 0 0 0 *** *** 0 0 *** 2001 0 0 0 0 *** 0 0 0 0 0 0 0 *** 2002 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 20 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 1976 13 4 6 0 0 0 0 0 0 0 0 1 24 1977 11 6 0 0 0 0 0 0 0 0 0 2 19 1978 7 3 0 0 0 0 0 0 0 0 0 0 10 1979 8 0 1 0 0 0 0 0 0 0 0 9 18 1980 18 6 5 0 0 0 0 0 0 0 0 0 29 1981 6 2 0 0 0 0 0 0 0 0 0 0 8 1982 6 4 0 0 0 0 0 0 0 0 0 12 22 1983 16 *** *** 0 0 0 0 0 0 0 0 *** *** 1984 14 5 0 0 0 0 *** 0 0 *** 0 8 *** 1985 1 1 0 0 0 0 0 0 0 0 0 13 15 1986 11 2 1 0 0 0 0 0 0 0 0 13 27 1987 9 2 0 0 0 0 0 0 0 0 0 0 11 1988 11 12 0 0 0 0 0 0 0 0 0 2 25 1989 *** *** 0 0 0 0 0 0 0 0 0 8 *** 1990 *** 10 0 0 0 0 0 0 *** 0 0 4 *** 1991 0 4 0 0 0 *** 0 0 0 0 0 5 *** 1992 22 16 8 0 0 0 0 0 0 0 0 8 54 1993 22 8 0 0 0 0 0 0 0 0 0 0 30 1994 4 0 0 *** 0 0 0 0 0 0 0 6 *** 1995 0 *** 0 0 0 0 *** 0 0 0 0 *** *** 1996 21 0 0 0 0 0 0 0 0 0 0 0 21 1997 9 3 0 0 0 0 0 0 0 0 0 9 21 1998 14 6 0 0 0 0 0 0 0 0 0 0 20 1999 5 1 0 *** *** *** *** *** 0 0 0 1 *** 2000 2 14 0 0 0 0 0 0 *** *** 0 5 *** 2001 7 3 0 0 *** 0 0 0 0 0 0 2 *** 2002 15 *** 0 0 0 0 *** 0 0 0 0 *** *** 2003 13 5 0 0 0 0 0 0 0 0 0 1 19 MEAN 10 5 1 0 0 0 0 0 0 0 0 4 20 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 1976 0 0 0 0 0 8 31 22 2 0 0 0 63 1977 0 0 0 0 0 17 28 23 0 0 0 0 68 1978 0 0 0 0 0 7 19 23 1 0 0 0 50 1979 0 0 0 0 0 5 28 12 5 0 0 0 50 1980 0 0 0 0 0 7 23 20 0 0 0 0 50 1981 0 0 0 0 0 2 22 24 2 0 0 0 50 1982 0 0 0 0 0 18 25 24 0 0 0 0 67 1983 0 *** *** 0 0 20 29 29 11 0 0 *** *** 1984 0 0 0 0 0 18 *** 31 8 *** 0 0 *** 1985 0 0 0 0 0 22 31 17 5 0 0 0 75 1986 0 0 0 0 0 7 31 20 0 0 0 0 58 1987 0 0 0 0 1 12 26 26 7 0 0 0 72 1988 0 0 0 0 0 14 29 27 12 0 0 0 82 1989 *** *** 0 0 1 18 29 31 12 0 0 0 *** 1990 *** 0 0 0 0 20 28 20 *** 0 0 0 *** 1991 0 0 0 0 0 *** 31 31 13 0 0 0 *** 1992 0 0 0 0 0 4 28 20 0 0 0 0 52 1993 0 0 0 0 0 7 28 26 12 0 0 0 73 1994 0 0 0 *** 0 13 26 31 5 0 0 0 *** 1995 0 *** 0 0 0 9 *** 29 13 0 0 *** *** 1996 0 0 0 0 0 18 25 27 16 1 0 0 87 1997 0 0 0 0 0 7 30 31 3 0 0 0 71 1998 0 0 0 0 0 15 28 26 5 0 0 0 74 1999 0 0 0 *** *** *** *** *** 19 0 0 0 *** 2000 0 0 0 0 5 27 31 31 *** *** 0 0 *** 2001 0 0 0 0 *** 21 30 30 14 0 0 0 *** 2002 0 *** 0 0 0 6 *** 20 19 0 0 *** *** 2003 0 0 0 0 1 3 25 21 7 0 0 0 57 MEAN 0 0 0 0 0 13 28 25 7 0 0 0 73 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 0 *** *** 0 0 0 0 0 0 0 0 *** *** 1984 0 0 0 0 0 0 *** 0 0 *** 0 0 *** 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 0 0 0 0 1 0 0 0 0 0 0 0 1 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 *** 1990 *** 0 0 0 0 0 0 0 *** 0 0 0 *** 1991 0 0 0 0 0 *** 0 0 0 0 0 0 *** 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 *** 0 0 0 0 0 0 0 0 *** 1995 0 *** 0 0 0 0 *** 0 0 0 0 *** *** 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 *** *** *** *** *** 0 0 0 0 *** 2000 0 0 0 0 0 0 0 0 *** *** 0 0 *** 2001 0 0 0 0 *** 0 0 0 0 0 0 0 *** 2002 0 *** 0 0 0 0 *** 0 0 0 0 *** *** 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 SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 1976 0 0 0 0 0 0 0 0 0 0 0 0 0 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 0 *** *** 0 0 0 0 0 0 0 0 *** *** 1984 0 0 0 0 0 0 *** 0 0 *** 0 0 *** 1985 0 0 0 0 0 0 0 0 0 0 0 0 0 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 0 0 0 0 1 0 0 0 0 0 0 0 1 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 *** 1990 *** 0 0 0 0 0 0 0 *** 0 0 0 *** 1991 0 0 0 0 0 *** 0 0 0 0 0 0 *** 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 *** 0 0 0 0 0 0 0 0 *** 1995 0 *** 0 0 0 0 *** 0 0 0 0 *** *** 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 *** *** *** *** *** 0 0 0 0 *** 2000 0 0 0 0 0 0 0 0 *** *** 0 0 *** 2001 0 0 0 0 *** 0 0 0 0 0 0 0 *** 2002 0 *** 0 0 0 0 *** 0 0 0 0 *** *** 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 SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 -------------- 1976 26 27 31 8 0 0 0 0 0 0 17 31 140 11 11 4 11 1977 31 28 20 1 0 0 0 0 0 15 22 31 148 10 8 4 23 1978 31 28 31 12 1 2 0 0 0 18 25 28 176 10 7 6 4 1979 27 25 28 2 0 0 0 0 3 4 27 31 147 9 27 4 30 1980 31 27 22 4 0 0 0 0 3 18 19 31 155 9 24 4 20 1981 17 *** 14 3 0 0 *** 0 6 12 17 30 *** 9 25 4 13 1982 31 27 30 11 0 0 0 0 0 13 27 31 170 10 10 4 12 1983 31 *** *** 23 0 0 0 0 0 24 26 *** *** 10 5 4 30 1984 31 28 26 18 3 0 *** 0 3 *** 28 30 *** 9 28 5 4 1985 29 28 27 21 2 0 0 0 4 26 28 31 196 9 27 5 14 1986 31 28 31 9 0 0 0 0 0 6 23 31 159 10 26 4 15 1987 31 28 26 13 0 0 0 0 0 4 25 28 155 10 11 4 13 1988 31 29 22 9 0 0 0 0 0 9 18 30 148 10 11 4 10 1989 *** *** 27 10 0 0 0 0 3 16 25 31 *** 9 13 4 10 1990 *** 28 28 19 0 0 0 0 *** 23 28 31 *** 10 2 4 27 1991 26 27 28 8 2 *** 0 0 0 10 27 28 *** 10 8 5 24 1992 31 29 30 14 1 0 0 0 0 29 20 28 182 10 1 5 5 1993 31 27 26 10 1 0 0 0 1 22 16 29 163 9 30 5 1 1994 27 27 29 *** 3 1 0 0 3 10 17 28 *** 9 23 6 15 1995 29 *** 24 9 1 0 0 0 0 24 27 *** *** 10 5 5 10 1996 31 27 25 11 0 0 0 0 *** *** *** *** *** 1 1 4 29 1997 30 27 26 10 1 0 0 0 *** 10 16 30 *** 10 14 5 6 1998 *** 27 22 10 2 0 0 0 0 16 28 27 *** 10 5 5 3 1999 28 23 25 *** *** *** *** *** 0 18 20 30 *** 10 10 3 31 2000 30 28 26 9 0 0 0 0 *** *** 22 26 *** 11 1 4 27 2001 31 24 23 11 *** 0 0 0 0 5 26 25 *** 10 8 4 19 2002 29 *** 26 9 4 0 0 0 0 8 22 *** *** 10 23 5 23 2003 30 22 26 3 4 0 0 0 1 10 27 27 150 9 22 5 10 MEAN 29 27 26 10 1 0 0 0 1 14 23 29 160 9 13 6 15 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 -3.8 -2.8 -1.7 7.5 13.5 20.8 23.9 21.3 18.3 12.8 6.0 2.4 9.9 1977 -3.6 -0.7 7.4 10.0 14.8 19.9 23.0 21.6 17.9 11.5 5.6 -0.2 10.6 1978 -3.7 -0.4 2.6 10.2 14.5 18.0 20.9 21.0 17.6 12.4 3.2 3.8 10.0 1979 -2.0 1.7 3.1 11.5 12.5 17.9 21.9 19.8 17.2 12.8 6.6 -2.2 10.1 1980 -4.9 -1.7 1.1 11.1 15.6 21.0 21.8 21.3 16.8 12.0 6.5 2.0 10.2 1981 -2.5 -0.7 5.6 10.6 14.5 18.9 23.2 22.6 17.0 11.0 7.4 3.3 10.9 1982 -1.6 -1.8 2.0 11.8 16.9 21.7 23.3 23.6 18.7 10.2 3.4 -4.2 10.3 1983 -7.5 ****** ****** 7.9 15.5 21.1 23.7 22.9 18.8 11.0 7.0 ****** ****** 1984 -6.3 -3.5 3.6 9.9 12.8 20.4 ****** 22.6 17.5 ****** 6.4 -2.0 ****** 1985 0.9 -0.4 4.4 10.1 15.2 21.0 23.5 21.0 17.8 10.9 7.0 -4.0 10.6 1986 -4.2 -1.5 2.1 9.5 14.6 19.9 23.3 20.8 17.4 13.6 4.0 -3.3 9.7 1987 -3.1 -0.2 3.1 10.2 17.2 21.5 22.6 23.0 19.0 11.2 7.3 1.4 11.1 1988 -2.1 -3.9 4.7 10.0 16.8 20.9 24.0 23.5 20.0 14.2 6.6 3.1 11.5 1989 ****** ****** 3.4 9.7 15.2 22.3 24.3 22.4 18.1 13.3 6.1 -3.7 ****** 1990 ****** -4.8 2.9 9.2 16.5 19.8 22.5 19.4 ****** 12.2 7.8 1.4 ****** 1991 -1.3 -2.5 4.5 11.7 14.7 ****** 23.3 22.1 17.9 12.0 6.7 -3.8 ****** 1992 -12.1 -8.1 -3.3 7.9 13.0 17.7 22.2 20.0 16.3 11.9 7.5 -3.3 7.5 1993 -9.3 -4.5 1.6 8.9 13.6 18.1 21.4 21.1 18.3 11.1 6.8 3.9 9.2 1994 -0.8 0.4 3.9 ****** 14.2 19.0 23.2 23.4 16.2 11.7 5.3 -2.2 ****** 1995 1.3 ****** 5.7 9.3 13.4 18.1 22.9 22.6 18.2 11.8 6.7 ****** ****** 1996 -7.8 0.8 2.4 9.6 15.8 19.7 21.2 21.6 19.2 12.6 6.1 2.3 10.3 1997 -2.6 -2.0 2.0 8.5 14.1 19.4 24.2 23.1 ****** 13.4 5.7 -2.7 ****** 1998 -8.3 -2.8 3.4 11.1 15.7 19.5 22.6 22.8 18.7 12.8 8.7 6.0 10.8 1999 -0.7 1.2 4.2 ****** ****** ****** ****** ****** 18.5 12.2 7.0 0.9 ****** 2000 -1.4 -6.1 3.5 12.8 16.4 20.6 22.5 22.6 ****** ****** 5.2 -1.6 ****** 2001 -5.0 -2.6 7.0 12.1 ****** 19.8 22.9 22.0 18.0 14.0 6.1 1.7 ****** 2002 -7.1 ****** 6.8 10.3 14.8 19.4 22.3 21.8 20.3 13.6 5.5 ****** ****** 2003 -2.3 -1.1 3.7 10.6 13.7 18.6 23.2 22.0 19.2 13.1 6.3 0.7 10.6 MEAN -3.9 -2.0 3.3 10.1 14.8 19.8 22.8 21.9 18.1 12.3 6.2 0.0 10.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 -9.0 -8.0 -7.1 -0.5 3.5 4.2 8.8 5.6 4.3 0.7 -1.2 -3.0 -0.1 1977 -8.0 -6.1 -1.4 0.1 2.0 3.5 3.6 5.7 1.8 0.4 -0.9 -5.1 -0.4 1978 -9.3 -6.2 -4.2 -0.6 0.9 2.0 4.2 3.5 1.8 -2.1 -4.0 -2.9 -1.4 1979 -8.1 -5.4 -4.4 -0.4 0.6 2.7 4.4 1.5 0.3 -0.6 -3.6 -8.0 -1.7 1980 -10.4 -7.8 -5.9 -1.6 0.7 2.7 2.3 3.4 0.6 -0.6 -1.9 -4.5 -1.9 1981 -9.3 -7.0 -3.3 -1.7 -0.0 1.4 2.6 3.3 0.9 -1.5 -4.0 -6.1 -2.1 1982 -8.0 -9.0 -6.4 -1.2 1.3 1.8 1.8 3.6 0.4 1.5 -2.8 -7.7 -2.1 1983 -11.1 ****** ****** -1.1 2.4 2.2 4.0 4.3 2.0 -4.5 -3.4 ****** ****** 1984 -10.8 -7.9 -2.5 -1.5 -1.0 3.8 ****** 5.3 0.2 ****** -2.6 -6.4 ****** 1985 -5.6 -6.0 -4.1 -2.4 -0.1 3.0 5.3 3.8 -0.5 -4.2 -2.0 -8.4 -1.8 1986 -8.8 -6.8 -4.0 1.3 1.1 3.9 4.5 4.9 0.7 -0.7 -2.8 -8.2 -1.2 1987 -9.5 -6.7 -3.5 -1.9 1.9 2.6 4.6 3.7 1.7 1.0 -2.9 -5.3 -1.2 1988 -7.8 -9.0 -4.6 -1.4 1.0 2.0 5.1 3.7 1.4 -1.1 -4.5 -6.0 -1.8 1989 ****** ****** -4.4 -0.3 -0.2 2.1 3.5 7.1 2.0 1.9 -1.8 -9.7 ****** 1990 ****** -9.6 -3.7 -0.9 2.5 2.7 1.8 1.6 ****** -0.8 -1.8 -6.3 ****** 1991 -4.9 -6.9 -1.4 1.7 -0.2 ****** 6.3 1.8 0.9 2.3 -1.5 -8.6 ****** 1992 -16.5 -14.4 -9.8 -1.3 2.8 3.3 6.6 3.2 2.0 -2.1 -2.7 -10.0 -3.2 1993 -15.7 -9.8 -4.8 -2.3 0.3 2.0 4.9 6.6 3.2 -2.8 -3.2 -5.5 -2.3 1994 -8.4 -7.7 -4.6 ****** 5.0 3.2 4.1 11.4 3.9 4.3 -0.5 -8.7 ****** 1995 -5.1 ****** -4.2 -0.3 3.9 8.6 9.9 9.3 2.7 -0.4 -5.2 ****** ****** 1996 -12.5 -4.3 -3.2 2.0 6.5 10.0 11.9 12.7 6.3 0.1 -4.6 -5.4 1.6 1997 -10.0 -8.8 -5.1 -0.2 2.1 6.9 6.5 5.3 ****** -0.7 -1.5 -8.4 ****** 1998 -14.5 -8.5 -1.9 -1.1 2.1 3.9 6.1 5.1 2.2 -2.1 -7.2 -4.8 -1.7 1999 -5.8 -5.3 -3.5 ****** ****** ****** ****** ****** 2.5 -1.4 -2.9 -3.6 ****** 2000 -5.2 -11.0 -5.0 -0.8 2.6 3.7 5.5 3.5 ****** ****** -1.5 -6.1 ****** 2001 -10.0 -8.1 -3.2 -3.8 ****** 2.1 4.0 3.6 3.3 8.0 -1.8 -2.2 ****** 2002 -12.7 ****** -5.3 -1.0 -1.1 0.7 2.8 3.6 -1.1 -1.5 -1.0 ****** ****** 2003 -7.7 -5.2 -4.4 0.2 0.5 3.3 6.4 4.4 2.7 1.3 -4.8 -3.7 -0.6 MEAN -9.4 -7.7 -4.3 -0.8 1.6 3.4 5.1 4.9 1.8 -0.2 -2.8 -6.2 -1.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 2.85 2.94 3.09 4.75 6.41 6.59 9.21 7.50 6.70 5.22 4.57 3.98 5.32 1977 2.93 3.38 4.51 4.97 5.75 6.35 6.36 7.37 5.64 5.17 4.66 3.49 5.05 1978 2.65 3.24 3.67 4.73 5.26 5.78 6.68 6.33 5.65 4.27 3.73 4.02 4.67 1979 2.90 3.37 3.65 4.83 5.22 5.98 6.75 5.46 5.05 4.70 3.92 2.85 4.56 1980 2.42 2.96 3.27 4.39 5.17 5.96 5.77 6.26 5.22 4.77 4.31 3.58 4.51 1981 2.61 3.03 3.90 4.37 4.87 5.45 5.88 6.19 5.29 4.44 3.70 3.15 4.41 1982 2.74 2.52 3.08 4.51 5.37 5.57 5.55 6.36 5.02 5.52 4.14 2.92 4.44 1983 2.45 ****** ****** 4.60 5.81 5.75 6.55 6.69 5.67 3.56 3.92 ****** ****** 1984 2.39 2.89 4.19 4.53 4.67 6.38 ****** 7.20 4.99 ****** 4.10 3.14 ****** 1985 3.37 3.20 3.71 4.15 4.87 6.05 7.14 6.44 4.72 3.68 4.31 2.82 4.54 1986 2.64 3.03 3.71 5.46 5.33 6.50 6.77 6.93 5.17 4.67 4.07 2.76 4.75 1987 2.51 3.04 3.86 4.34 5.60 5.92 6.92 6.42 5.54 5.36 4.06 3.41 4.75 1988 2.81 2.61 3.53 4.55 5.24 5.70 7.06 6.38 5.47 4.66 3.59 3.20 4.57 1989 ****** ****** 3.64 4.97 4.89 5.67 6.24 8.16 5.81 5.82 4.53 2.58 ****** 1990 ****** 2.58 3.85 4.78 5.92 6.13 5.63 5.61 ****** 4.68 4.44 3.33 ****** 1991 3.52 3.13 4.53 5.69 4.81 ****** 7.74 5.62 5.27 5.93 4.57 2.89 ****** 1992 1.62 1.92 2.52 4.63 6.17 6.38 7.87 6.17 5.81 4.84 4.41 2.68 4.58 1993 1.92 2.68 3.55 4.37 5.10 5.82 7.29 7.89 6.30 4.08 4.02 3.39 4.70 1994 2.84 2.85 3.68 ****** 7.20 6.45 6.87 11.52 6.63 6.93 5.12 2.78 ****** 1995 3.49 ****** 3.74 4.99 6.69 9.04 9.93 9.60 6.04 5.03 3.51 ****** ****** 1996 2.16 3.75 3.96 5.79 8.16 10.15 11.52 12.23 8.19 5.65 3.71 3.40 6.56 1997 2.56 2.76 3.54 5.04 5.87 8.23 7.75 7.18 ****** 4.70 4.44 2.83 ****** 1998 1.87 2.82 4.58 4.69 5.84 6.52 7.73 7.07 5.82 4.39 2.96 3.64 4.83 1999 3.45 3.54 3.93 ****** ****** ****** ****** ****** 5.99 4.84 4.12 4.17 ****** 2000 3.65 2.52 3.64 4.78 6.17 6.77 7.73 6.35 ****** ****** 4.56 3.56 ****** 2001 2.72 2.93 4.03 3.82 ****** 5.87 6.63 6.44 6.85 9.45 4.74 4.31 ****** 2002 2.32 ****** 3.58 4.66 4.76 5.50 6.13 6.54 4.66 4.50 4.73 ****** ****** 2003 3.12 3.68 3.78 5.17 5.44 6.58 7.90 6.81 6.11 6.12 3.68 3.98 5.20 MEAN 2.71 2.97 3.73 4.75 5.64 6.43 7.22 7.14 5.74 5.12 4.16 3.31 4.91 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 3.56 3.69 3.87 5.98 8.09 8.36 11.67 9.50 8.48 6.60 5.74 4.99 6.71 1977 3.66 4.24 5.68 6.26 7.27 8.05 8.09 9.34 7.15 6.53 5.86 4.37 6.38 1978 3.32 4.07 4.60 5.97 6.65 7.33 8.48 8.04 7.16 5.40 4.68 5.05 5.90 1979 3.63 4.23 4.58 6.09 6.59 7.58 8.57 6.93 6.41 5.95 4.95 3.57 5.76 1980 3.02 3.71 4.11 5.55 6.55 7.57 7.34 7.95 6.61 6.03 5.42 4.49 5.70 1981 3.28 3.79 4.91 5.52 6.17 6.92 7.49 7.87 6.71 5.61 4.66 3.97 5.57 1982 3.43 3.16 3.86 5.71 6.81 7.09 7.07 8.09 6.38 6.95 5.20 3.65 5.62 1983 3.06 ****** ****** 5.79 7.35 7.31 8.33 8.50 7.19 4.51 4.95 ****** ****** 1984 2.99 3.62 5.26 5.72 5.90 8.09 ****** 9.14 6.34 ****** 5.16 3.92 ****** 1985 4.23 4.01 4.66 5.24 6.16 7.68 9.07 8.18 6.00 4.66 5.43 3.52 5.74 1986 3.30 3.80 4.66 6.87 6.75 8.24 8.60 8.78 6.56 5.91 5.11 3.45 6.00 1987 3.14 3.81 4.84 5.48 7.10 7.52 8.78 8.16 7.04 6.76 5.11 4.28 6.00 1988 3.52 3.26 4.44 5.75 6.64 7.24 8.98 8.11 6.95 5.91 4.52 4.02 5.78 1989 ****** ****** 4.57 6.26 6.19 7.22 7.94 10.35 7.38 7.35 5.70 3.23 ****** 1990 ****** 3.23 4.83 6.02 7.50 7.78 7.17 7.12 ****** 5.92 5.60 4.18 ****** 1991 4.40 3.91 5.69 7.18 6.09 ****** 9.82 7.15 6.69 7.48 5.75 3.62 ****** 1992 2.02 2.40 3.16 5.83 7.78 8.07 9.97 7.83 7.36 6.11 5.55 3.35 5.79 1993 2.39 3.36 4.45 5.50 6.44 7.39 9.24 9.99 7.98 5.16 5.06 4.26 5.93 1994 3.56 3.58 4.62 ****** 9.08 8.19 8.74 14.52 8.38 8.72 6.43 3.48 ****** 1995 4.38 ****** 4.71 6.28 8.43 11.41 12.56 12.14 7.65 6.36 4.43 ****** ****** 1996 2.70 4.71 4.97 7.29 10.29 12.79 14.50 15.38 10.35 7.13 4.67 4.27 8.25 1997 3.21 3.46 4.44 6.35 7.41 10.40 9.84 9.12 ****** 5.94 5.58 3.55 ****** 1998 2.33 3.52 5.75 5.92 7.39 8.26 9.79 8.97 7.38 5.55 3.74 4.58 6.10 1999 4.32 4.45 4.94 ****** ****** ****** ****** ****** 7.60 6.11 5.19 5.22 ****** 2000 4.57 3.15 4.57 6.04 7.80 8.57 9.78 8.07 ****** ****** 5.74 4.46 ****** 2001 3.40 3.67 5.07 4.83 ****** 7.45 8.42 8.18 8.66 11.87 5.96 5.40 ****** 2002 2.90 ****** 4.51 5.87 6.01 6.97 7.79 8.29 5.92 5.69 5.95 ****** ****** 2003 3.91 4.60 4.74 6.51 6.86 8.31 10.01 8.64 7.74 7.71 4.63 4.98 6.56 MEAN 3.39 3.73 4.69 5.99 7.13 8.15 9.15 9.05 7.28 6.46 5.24 4.16 6.20 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 1.65 1.73 1.99 4.90 8.49 17.80 20.12 18.30 14.83 9.44 4.02 2.66 8.83 1977 1.48 2.14 5.45 6.55 10.86 17.81 22.86 18.89 15.90 8.61 3.73 2.01 9.69 1978 1.84 2.25 3.30 7.49 11.37 15.75 18.85 19.75 15.62 10.76 3.55 3.38 9.49 1979 2.28 3.11 3.72 8.46 8.93 14.89 20.30 18.36 15.64 10.20 6.23 2.18 9.53 1980 1.81 2.36 3.16 8.47 12.33 19.14 21.00 19.88 15.17 9.85 4.94 3.08 10.10 1981 2.41 2.49 4.82 8.20 11.49 16.72 23.45 22.00 15.09 8.71 6.46 4.36 10.52 1982 2.31 2.52 3.54 9.27 13.27 20.77 23.67 23.64 17.14 6.28 3.16 1.19 10.56 1983 1.09 ****** ****** 5.65 11.40 19.74 23.41 22.48 16.93 10.62 6.25 ****** ****** 1984 1.43 1.60 3.32 7.41 9.97 18.29 ****** 21.15 16.56 ****** 5.06 1.63 ****** 1985 2.88 2.34 4.54 8.24 12.77 20.18 22.87 18.86 17.72 10.62 5.36 1.50 10.66 1986 1.53 2.04 2.86 5.60 11.05 17.48 21.99 18.34 16.11 11.32 3.63 1.64 9.47 1987 2.28 2.57 3.11 8.11 13.81 19.94 20.76 21.76 17.13 7.40 6.20 2.88 10.50 1988 2.14 1.63 4.62 7.28 13.77 19.59 22.99 22.92 19.27 12.26 6.17 4.33 11.41 1989 ****** ****** 3.69 6.61 12.68 21.66 24.34 19.92 16.64 10.13 4.44 1.90 ****** 1990 ****** 1.45 3.19 6.97 13.37 18.17 22.84 19.02 ****** 10.25 6.37 3.75 ****** 1991 1.40 1.57 3.33 7.83 12.33 ****** 22.55 23.54 17.51 7.90 5.06 1.56 ****** 1992 0.83 1.38 2.11 5.57 8.24 14.07 19.72 18.21 13.59 10.07 6.29 1.76 8.49 1993 1.11 1.54 2.75 6.67 10.28 15.70 18.85 17.55 16.09 9.75 5.67 4.46 9.20 1994 2.75 3.09 4.02 ****** 8.63 16.43 22.91 18.00 12.47 6.10 3.12 2.15 ****** 1995 2.80 ****** 5.16 6.18 8.20 11.51 18.94 19.11 16.28 9.48 7.13 ****** ****** 1996 1.16 2.24 2.62 5.44 9.38 12.94 12.94 13.35 14.98 9.79 5.88 3.62 7.86 1997 2.64 2.44 3.12 5.63 10.14 14.34 23.88 22.93 ****** 11.29 4.07 1.98 ****** 1998 1.51 1.92 2.80 8.41 12.15 16.89 20.35 21.82 16.78 11.33 9.18 5.83 10.75 1999 1.92 2.73 3.96 ****** ****** ****** ****** ****** 16.93 10.46 5.55 1.87 ****** 2000 1.41 1.30 4.18 10.12 13.24 19.22 20.47 22.46 ****** ****** 3.77 1.61 ****** 2001 1.37 1.88 5.85 10.87 ****** 18.86 22.53 21.48 14.72 5.77 4.62 1.92 ****** 2002 1.48 ****** 6.39 7.70 12.68 18.02 21.86 20.62 20.99 12.02 3.87 ****** ****** 2003 1.77 1.51 3.98 7.07 10.18 15.52 21.54 21.00 17.94 9.10 5.74 1.76 9.76 MEAN 1.82 2.08 3.76 7.33 11.19 17.36 21.38 20.20 16.32 9.60 5.20 2.60 9.90 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 68 68 68 59 54 37 41 39 43 47 62 69 55 1977 73 68 57 53 46 38 32 39 38 50 65 70 52 1978 66 67 64 51 44 39 36 36 39 41 62 64 51 1979 65 62 60 47 49 39 35 33 35 43 53 66 49 1980 66 65 61 45 38 33 31 34 37 46 57 64 48 1981 61 64 55 46 40 34 29 31 37 46 48 53 45 1982 63 60 56 44 37 29 26 29 32 59 67 77 48 1983 76 *** *** 57 45 31 31 34 36 38 52 *** *** 1984 72 73 68 50 43 38 *** 36 37 *** 56 74 *** 1985 65 68 58 48 40 36 35 35 34 39 56 72 49 1986 71 69 66 59 43 39 32 40 37 41 64 71 53 1987 64 63 65 47 39 31 35 30 34 53 52 64 48 1988 67 70 54 47 36 31 32 30 32 39 49 54 45 1989 *** *** 59 53 39 29 28 40 37 48 60 65 *** 1990 *** 70 64 53 43 35 27 36 *** 45 54 63 *** 1991 77 73 67 54 41 *** 38 30 38 56 60 70 *** 1992 70 64 61 56 55 44 41 37 41 45 53 67 53 1993 65 68 65 51 43 37 36 44 43 43 52 52 50 1994 58 56 57 *** 58 36 30 51 48 64 69 63 *** 1995 63 *** 51 55 57 58 49 48 41 48 46 *** *** 1996 69 70 68 61 55 58 59 60 46 46 52 60 59 1997 60 61 62 57 48 48 37 36 *** 44 63 66 *** 1998 61 66 70 49 43 42 39 37 39 42 38 52 48 1999 70 64 62 *** *** *** *** *** 40 47 54 74 *** 2000 75 69 59 44 45 39 38 34 *** *** 65 71 *** 2001 69 66 54 41 *** 37 35 34 45 69 61 75 *** 2002 65 *** 48 52 42 36 34 35 30 42 65 *** *** 2003 70 75 61 55 47 43 40 38 40 50 52 74 54 MEAN 67 67 61 51 45 38 36 37 38 47 57 66 51 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 77 77 77 77 73 58 58 58 65 68 76 83 71 1977 83 80 77 72 66 60 52 59 60 69 83 80 70 1978 80 82 83 75 66 64 55 57 64 64 83 82 71 1979 79 81 79 67 68 57 54 54 54 65 79 81 68 1980 79 80 76 64 52 49 48 52 56 68 77 84 65 1981 78 81 74 63 57 50 45 47 56 68 71 74 64 1982 79 76 75 69 52 43 39 43 50 79 86 87 65 1983 84 *** *** 80 64 47 46 54 56 64 74 *** *** 1984 83 81 84 72 63 64 *** 57 64 *** 76 86 *** 1985 79 82 76 76 65 61 58 53 58 66 76 82 69 1986 80 80 77 76 60 61 47 65 60 62 79 80 69 1987 77 77 79 69 57 44 48 42 51 68 70 78 63 1988 78 80 68 61 50 46 47 45 48 60 69 74 61 1989 *** *** 75 71 54 43 42 60 57 66 72 75 *** 1990 *** 78 77 69 64 50 40 59 *** 69 74 77 *** 1991 85 82 79 75 69 *** 60 49 63 76 78 79 *** 1992 77 74 68 75 80 70 67 58 58 67 72 77 70 1993 77 77 76 70 58 52 47 70 70 68 67 64 66 1994 67 65 74 *** 77 46 38 72 71 82 78 71 *** 1995 72 *** 62 72 77 84 76 74 69 73 66 *** *** 1996 73 78 77 74 65 81 81 83 60 62 70 76 73 1997 70 70 75 73 64 66 61 61 *** 73 86 79 *** 1998 70 82 82 79 58 72 60 63 65 70 64 72 70 1999 80 75 78 *** *** *** *** *** 64 73 75 83 *** 2000 83 77 79 67 69 62 60 57 *** *** 79 82 *** 2001 80 74 73 73 *** 63 58 54 68 80 76 84 *** 2002 71 *** 70 73 70 64 59 57 57 73 78 *** *** 2003 84 82 79 79 73 70 62 66 69 71 76 85 75 MEAN 78 78 76 72 64 59 54 58 61 69 75 79 69 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1976 58 60 58 46 38 23 28 24 30 33 49 56 42 1977 62 58 41 39 33 24 19 25 24 35 51 62 39 1978 54 52 47 34 28 24 25 22 24 26 48 50 36 1979 53 47 47 32 34 27 23 20 23 29 36 54 35 1980 55 53 50 29 29 22 20 22 23 32 44 50 36 1981 49 52 41 32 29 23 18 21 25 32 34 40 33 1982 53 49 44 30 28 21 18 21 22 43 52 69 38 1983 69 *** *** 42 33 21 21 21 24 24 38 *** *** 1984 62 65 56 33 30 23 *** 24 21 *** 41 65 *** 1985 52 54 45 27 24 21 22 25 19 24 43 64 35 1986 63 59 57 48 31 26 22 25 23 28 52 61 41 1987 54 53 54 34 27 22 26 23 24 42 40 54 38 1988 58 61 43 38 27 22 23 21 22 26 37 41 35 1989 *** *** 49 40 29 20 20 29 26 36 49 53 *** 1990 *** 63 53 39 27 24 19 19 *** 28 38 48 *** 1991 69 61 55 38 24 *** 23 18 21 40 47 62 *** 1992 62 50 53 39 36 27 25 24 28 31 39 56 39 1993 51 58 54 34 29 25 26 27 24 27 39 40 36 1994 49 47 42 *** 43 28 24 36 33 50 60 54 *** 1995 53 *** 40 41 41 40 30 30 24 32 32 *** *** 1996 65 62 59 48 47 40 44 44 32 34 37 48 47 1997 50 52 50 44 34 34 22 22 *** 24 48 54 *** 1998 52 53 52 25 28 24 24 22 22 25 22 36 32 1999 59 54 46 *** *** *** *** *** 22 27 39 65 *** 2000 67 61 43 27 27 21 21 19 *** *** 52 59 *** 2001 57 59 39 19 *** 21 19 20 29 59 45 67 *** 2002 58 *** 29 33 22 19 18 21 14 23 54 *** *** 2003 56 66 46 37 27 24 22 21 22 34 35 64 38 MEAN 57 56 48 36 31 25 23 24 24 32 43 55 38 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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 1976 5 5 3 2 1 0 0 0 0 1 3 3 23 1977 5 1 3 4 2 0 0 0 0 5 4 4 28 1978 3 3 4 0 1 0 0 0 0 0 3 5 19 1979 4 2 2 1 6 0 0 0 0 0 2 4 21 1980 3 4 5 2 0 0 0 0 0 1 3 1 19 1981 5 3 2 4 2 0 0 0 0 1 2 2 21 1982 3 4 4 1 2 0 0 0 0 6 4 2 26 1983 6 *** *** 3 2 0 0 0 0 0 1 *** *** 1984 2 2 8 2 1 0 *** 0 0 *** 2 3 *** 1985 2 4 3 0 2 0 0 0 0 0 2 6 19 1986 2 2 5 4 5 0 0 0 0 0 8 4 30 1987 1 3 9 4 2 0 3 0 0 4 1 6 33 1988 3 6 5 4 0 0 1 0 0 0 5 3 27 1989 *** *** 5 3 2 0 0 0 0 0 4 5 *** 1990 *** 4 5 2 0 0 0 0 *** 0 1 2 *** 1991 3 4 2 1 0 *** 0 0 0 1 2 9 *** 1992 4 1 3 4 2 0 0 0 0 0 0 4 18 1993 4 3 2 4 2 0 0 0 0 0 3 0 18 1994 3 2 4 *** 2 0 0 0 0 1 8 3 *** 1995 1 *** 2 3 5 0 0 0 0 0 0 *** *** 1996 5 5 6 5 0 0 0 0 0 0 0 1 22 1997 2 0 1 5 1 0 0 0 0 0 2 3 14 1998 4 5 7 1 0 0 0 0 0 2 0 3 22 1999 4 5 4 *** *** *** *** *** 0 0 0 4 *** 2000 1 3 3 0 0 0 0 0 *** *** 2 5 *** 2001 3 1 3 0 *** 1 0 0 0 1 2 7 *** 2002 4 *** 2 5 1 0 0 0 0 0 2 *** *** 2003 2 4 3 5 0 0 0 0 0 0 1 5 20 MEAN 3 3 4 3 2 0 0 0 0 1 2 4 22 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. HIGHEST AND LOWEST LIMITS FOR 28 YEARS DURING 1976-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 6.0 7.4 9.0 15.0 17.0 17.0 19.0 20.0 18.4 15.0 11.0 5.4 1 YEAR - DAY 1994- 4 1984-13 2001- 2 1990-15 2002-10 1980-25 1997-15 2001- 8 1995-20 2003- 5 1991- 5 1978- 2 LOW. DRY 03 -28.0 -28.0 -19.0 -8.0 -3.0 -0.4 5.0 3.0 -3.0 -8.4 -18.0 -25.0 2 YEAR - DAY 1983-28 1992-13 1992-11 1992- 2 1984- 2 1978- 3 1978-10 1983-29 1984-30 1985-30 1995-29 1991-27 HIG. WET 03 4.0 4.0 7.0 12.0 10.2 13.4 13.4 12.6 10.0 10.0 8.0 3.4 3 YEAR - DAY 1976-22 1999-20 1998-29 1998- 5 1986-25 1996-30 1996- 1 1976- 1 1995-20 2001-22 1994-23 2001-12 LOW. WET 03 -28.5 -28.0 -19.4 -9.0 -5.0 -1.8 2.6 0.0 -5.4 -9.4 -18.6 -25.2 4 YEAR - DAY 2001-29 1992-13 1992-11 1992- 2 1984- 2 1978- 3 1985-27 1983-29 1984-30 1985-31 1995-29 1991-31 HIG. DRY 09 15.0 15.6 19.6 27.4 29.6 34.0 36.2 35.4 32.4 29.0 21.4 18.0 5 YEAR - DAY 1999- 1 1996-11 1998-28 2000-19 2000-29 2000-21 1998-12 1998-19 1991- 9 1996- 2 1990- 5 1998-17 LOW. DRY 09 -18.4 -12.0 -7.4 1.4 7.6 18.4 21.4 21.4 13.4 9.0 0.4 -18.2 6 YEAR - DAY 1993-23 2000-11 1992-11 1983- 1 2002- 2 1978- 2 2003- 4 1992-30 1981-23 1987-27 1986-19 1992-26 HIG. WET 09 10.2 12.6 13.4 19.0 19.0 29.0 29.0 29.0 21.4 20.0 17.0 12.0 7 YEAR - DAY 1994- 5 1996-11 1998-28 1993-20 1997-24 2003-25 2000- 1 1994-16 1996-10 1996- 1 2001- 5 1998-18 LOW. WET 09 -19.0 -13.0 -9.4 -0.6 2.0 8.4 11.0 10.0 7.4 3.0 -2.0 -18.6 8 YEAR - DAY 1993-21 2000-11 1992-11 1983- 1 1979-11 1978- 1 2001- 6 1990-21 1979-25 2003-17 1986-19 1992-26 HIG. DRY 15 10.4 8.0 15.2 20.4 28.0 31.2 33.4 35.0 29.0 25.0 18.0 15.0 9 YEAR - DAY 1994- 2 1984-13 2000-24 2002-28 2000-30 1986-28 1994-30 1994-10 2003- 1 1996- 2 2003-11 1998-13 LOW. DRY 15 -19.0 -25.0 -10.0 0.0 5.0 12.4 15.0 16.0 12.0 5.0 -1.2 -20.0 10 YEAR - DAY 1992-29 1992-16 1992- 1 1983- 1 1981- 1 1995- 5 1987-30 2002-14 1991-30 1999-26 1986-19 1992-26 HIG. WET 15 7.4 5.4 10.8 14.4 17.0 19.0 22.0 22.0 19.6 19.0 13.0 8.0 11 YEAR - DAY 1994- 5 1977- 5 1998-27 1991-29 1992-20 1994-19 1996-29 1994- 8 1996-16 1996- 2 2003- 7 1990- 3 LOW. WET 15 -19.6 -25.2 -11.0 -2.0 1.2 6.8 9.4 9.4 6.6 1.0 -3.4 -20.5 12 YEAR - DAY 1993-21 1992-16 1992- 1 1983- 1 1981- 1 1978- 3 2001- 2 1991- 2 1981-24 2003- 5 1978-28 1992-26 HIG. MIN. 5.0 3.0 7.0 13.0 13.5 16.0 18.0 19.0 13.0 14.0 10.0 4.5 13 YEAR - DAY 1999- 1 1999-20 1998-18 1990-15 2000-20 1996-30 1976-23 2001- 8 1998- 3 1995-12 1991- 5 1998-31 LOW. MIN. -33.0 -28.0 -19.0 -8.0 -5.5 -1.0 1.0 2.0 -3.5 -9.5 -18.5 -27.0 14 YEAR - DAY 1983-28 1992-13 1992-11 1992- 2 1984- 2 1978- 3 1996-26 1983-29 1984-30 1985-31 1995-29 1991-27 HIG. MAX. 16.0 17.0 20.0 28.0 45.0 35.0 37.0 36.5 36.0 30.0 27.0 20.0 15 YEAR - DAY 1999- 1 1996-11 1977-18 2000-19 1987-21 1989-27 1991- 9 1982- 3 1999- 1 1996- 2 2003-11 1998-13 LOW. MAX. -13.5 -11.0 -4.0 3.0 9.5 19.0 21.4 23.5 17.0 9.5 1.5 -11.0 16 YEAR - DAY 1996-22 2000-11 1992- 1 1983- 1 1981- 1 1995- 1 2003- 4 1992-30 1981-23 1987-30 2003-17 1985-25 HIG. PPTN 53.0 60.0 53.0 53.0 30.0 8.0 10.2 3.0 2.0 28.0 50.0 57.0 17 YEAR - DAY 1993- 8 1980-11 1998-30 1993-27 1986- 4 2001-15 1987-28 1998- 7 2001-22 1977-26 1986-30 1985-19 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 28 YEARS DURING 1976-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 22.0 27.4 24.0 24.0 25.0 25.6 26.6 27.0 29.2 27.4 25.6 25.0 18 YEAR - DAY 2000- 3 1992-13 2002-11 2001-14 2003- 9 1977-28 1991- 9 1991-24 1989-14 1983-10 1996- 6 1998-17 DRY 15 - DRY 09 12.4 14.6 13.4 11.4 14.4 17.0 13.4 14.0 15.0 12.0 9.0 11.0 19 YEAR - DAY 1988-18 1998- 1 2003-14 1991-17 2000-10 2000- 6 2003-23 1993-23 1999- 3 1999-23 1990-12 2001-24 DRY 15 - DRY 03 19.0 20.2 20.0 19.4 22.6 22.0 23.0 23.0 24.0 24.4 22.0 21.0 20 YEAR - DAY 1983-23 1980- 6 2002-11 2001-14 2000-30 1994-19 1991-17 1994-10 1991- 8 1999-13 1995-29 1991-31 WET 09 - WET 03 20.4 25.2 19.0 20.2 19.8 23.0 25.0 18.8 19.8 22.0 21.0 21.6 21 YEAR - DAY 2000- 3 1992-13 2002- 2 1993-20 2003- 8 2000- 5 2000- 1 1994-16 1996- 8 1992-15 1992- 1 1991-31 WET 15 - WET 09 9.8 13.6 9.0 13.0 11.0 13.6 17.6 11.0 9.4 13.0 10.0 9.6 22 YEAR - DAY 1992-17 1998- 1 2002- 2 1993-20 2000- 7 2000- 5 2000-19 1994-25 2001-11 2003- 5 1993-11 2001-24 WET 15 - WET 03 17.6 18.4 17.0 15.5 14.6 16.4 15.4 16.0 17.2 18.4 18.8 19.2 23 YEAR - DAY 1983-23 2000- 6 2002- 1 1997-14 1984- 3 1996-11 1994-30 2002-29 1996-16 1992-31 1995-29 1991-31 DAY BY DAY DRY 03 21.0 22.0 16.4 14.0 14.0 8.6 10.0 8.4 15.4 16.0 13.0 21.0 24 YEAR - DAY 1993-29 1990-15 1999-13 1998- 6 2002-10 1992-19 1996-17 1998-22 1995-20 1995-14 1989-18 1979-28 DAY BY DAY WET 03 20.0 21.5 14.0 13.0 10.4 8.0 7.4 7.6 9.6 12.0 13.0 20.8 25 YEAR - DAY 1983-13 1990-15 1976-21 1998- 6 1991- 4 2001-12 1978- 9 2002-14 1995-20 1995-14 1989-18 1979-28 DAY BY DAY DRY 09 20.0 14.2 15.0 10.2 13.4 10.6 11.2 8.0 12.0 9.8 12.4 15.6 26 YEAR - DAY 2002-23 1977- 5 2003-14 1981- 3 2002- 2 2001- 7 1998-12 2001-26 1981-23 1990-18 1988-11 1997-22 DAY BY DAY WET 09 19.0 14.2 9.0 10.6 9.6 16.0 14.0 11.4 6.4 13.0 10.8 13.4 27 YEAR - DAY 2002-23 1977- 5 1997- 8 1993-21 2003- 8 2003-26 2000-19 1994-18 1979-25 2003-17 1993-12 1997-22 DAY BY DAY DRY 15 22.4 19.0 11.0 10.4 10.6 13.2 9.0 10.4 10.0 11.0 8.6 14.0 28 YEAR - DAY 2002-23 1992-16 1997- 8 1998-12 1983- 6 1987- 7 1998-30 1993-22 1999- 3 1991-16 1988-11 1991-28 DAY BY DAY WET 15 19.2 18.0 9.0 8.4 9.0 7.0 6.0 7.0 7.4 13.0 8.0 13.0 29 YEAR - DAY 2002-23 1992-16 1997- 8 1998-12 1992-21 2000-25 1994- 7 2002-30 2001-12 2003-17 2003- 7 1991-28 DAY BY DAY MIN. 23.0 20.5 15.8 13.0 13.0 8.0 9.0 9.0 8.0 15.5 13.0 20.5 30 YEAR - DAY 1993-29 2000- 7 1999-13 1998- 6 2000-21 1992-19 1996-17 2001- 8 1989-13 1995-14 1989-18 1991-27 DAY BY DAY MAX. 22.0 14.2 15.0 10.0 20.0 8.0 10.6 8.0 9.5 8.0 14.0 10.5 31 YEAR - DAY 2002-23 1977- 5 2003-14 1981- 3 1987-21 2000-14 2003- 5 2002-10 1981-23 1991-16 2003-12 1989- 4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -3.6 -3.5 -2.5 6.7 13.0 19.3 22.7 19.5 16.2 12.0 5.3 1.8 8.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -9.4 -10.4 -9.3 0.9 4.7 10.2 12.9 8.5 5.8 2.7 -1.1 -4.0 0.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.3 3.4 4.2 12.6 21.3 28.3 32.6 30.5 26.6 21.4 11.7 7.7 16.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.7 13.8 13.5 11.7 16.6 18.1 19.7 22.0 20.8 18.7 12.8 11.7 15.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.40 2.11 2.13 4.38 5.36 6.49 7.82 5.95 5.34 4.32 3.79 3.25 4.45 MEAN OF MIXING RATIO AT 09 GMT. 3.16 3.55 3.56 5.11 7.10 6.33 10.41 7.42 7.58 5.88 4.93 4.35 5.78 MEAN OF MIXING RATIO AT 15 GMT. 2.98 3.18 3.58 4.78 6.77 6.95 9.42 9.13 7.16 5.48 4.98 4.33 5.73 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -21.2 -19.2 -17.0 -5.0 0.2 8.0 9.0 5.0 3.0 1.2 -5.0 -9.2 -21.2 DAY 5 4 10 1 2 9 3 29 29 3 15 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.2 7.0 10.0 18.2 26.0 32.0 36.0 35.0 30.0 26.2 17.0 12.2 36.0 DAY 18 10 31 29 30 26 25 1 1 1 11 16 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.0 31.2 16.0 10.0 7.0 0.0 4.5 0.0 0.0 11.0 10.0 15.0 31.2 DAY 25 11 21 6 15 ** 23 ** ** 29 29 11 MONTHLY TOTAL PRECIPITATION IN MM. 68.0 91.7 41.0 22.0 7.0 0.0 4.5 0.0 0.0 11.0 29.0 29.0 303.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 66.2 9.6 1.5 22.8 NO. OF DAYS WITH PRECIPITATION. 5 6 3 3 1 0 1 0 0 1 4 4 28 NO. OF DAYS PRECIPITATION EQUAL 5 6 3 3 1 0 1 0 0 1 4 4 28 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 5 3 1 0 0 0 0 0 1 1 1 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 74 76 77 72 58 58 58 65 68 75 83 70 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 62 59 48 41 23 30 25 31 34 51 56 43 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 69 68 52 49 31 35 36 33 40 61 67 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 25 25 3 0 0 0 0 0 0 7 14 95 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 13 4 6 0 0 0 0 0 0 0 0 1 24 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 31 22 2 0 0 0 63 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 27 31 8 0 0 0 0 0 0 17 31 140 DATE OF START AND END FREEZING START = 11 NOV. END = 11 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -4.1 -1.5 6.5 9.2 13.2 18.0 21.3 19.7 16.0 10.4 4.6 -1.0 9.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.1 -8.1 -1.7 2.4 3.9 6.2 10.0 9.2 4.5 1.3 -2.2 -7.1 0.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.9 5.1 14.8 16.1 22.4 29.8 32.5 30.2 27.4 19.4 11.4 5.2 18.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.0 13.2 16.5 13.7 18.5 23.6 22.5 21.0 22.9 18.1 13.6 12.3 17.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.21 2.53 3.79 4.73 4.79 5.29 5.75 6.07 4.32 4.06 3.76 2.48 4.15 MEAN OF MIXING RATIO AT 09 GMT. 3.47 3.90 4.87 5.18 6.36 7.29 6.87 7.66 6.41 5.66 5.07 4.09 5.57 MEAN OF MIXING RATIO AT 15 GMT. 3.11 3.72 4.88 4.99 6.10 6.46 6.46 8.37 6.18 5.79 5.15 3.88 5.42 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -25.0 -23.0 -7.5 0.0 2.0 3.0 7.0 6.0 2.0 -2.5 -6.5 -15.5 -25.0 DAY 15 2 15 23 9 1 2 17 21 24 28 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.2 12.0 20.0 22.0 28.0 34.5 36.0 34.0 29.5 26.5 14.0 9.5 36.0 DAY 7 5 18 29 14 26 15 15 4 2 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 8.0 27.0 27.0 9.0 0.0 0.0 2.0 0.0 28.0 42.0 46.0 46.0 DAY 29 7 4 24 24 ** ** 1 ** 26 5 22 MONTHLY TOTAL PRECIPITATION IN MM. 43.0 8.0 46.0 68.0 20.0 0.0 0.0 2.0 0.0 73.0 94.0 93.0 447.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 21.7 19.7 0.4 58.2 NO. OF DAYS WITH PRECIPITATION. 5 1 3 4 3 0 0 1 0 8 5 4 34 NO. OF DAYS PRECIPITATION EQUAL 5 1 3 4 3 0 0 1 0 6 5 4 32 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 2 4 0 0 0 0 0 3 3 3 17 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 80 77 71 64 60 52 59 60 68 83 77 69 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 59 41 41 34 26 20 25 25 36 52 63 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 66 54 48 40 28 23 33 29 45 61 71 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 23 12 0 0 0 0 0 0 0 13 26 103 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 6 0 0 0 0 0 0 0 0 0 2 19 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 17 28 23 0 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 20 1 0 0 0 0 0 15 22 31 148 DATE OF START AND END FREEZING START = 8 OCT. END = 23 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -4.5 -1.5 1.9 9.1 13.1 16.3 19.2 19.3 15.9 10.7 2.6 2.3 8.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -11.6 -7.9 -5.2 0.3 3.3 4.9 8.0 7.7 4.1 0.0 -4.6 -4.1 -0.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.7 5.0 9.0 17.8 23.0 27.7 30.3 30.9 27.7 21.4 9.6 8.9 17.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.3 12.9 14.2 17.5 19.7 22.8 22.3 23.2 23.6 21.4 14.2 13.0 18.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.06 2.70 3.16 4.20 4.67 5.09 5.39 5.25 4.43 3.34 3.16 3.52 3.91 MEAN OF MIXING RATIO AT 09 GMT. 3.02 3.41 3.82 4.98 5.54 6.56 7.74 6.74 6.42 4.77 4.23 4.36 5.13 MEAN OF MIXING RATIO AT 15 GMT. 2.87 3.63 4.02 5.02 5.57 5.70 6.90 7.01 6.11 4.70 3.78 4.18 4.96 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -22.0 -15.0 -11.0 -6.0 -1.0 -1.0 4.5 3.5 2.0 -2.5 -10.0 -9.5 -22.0 DAY 16 13 9 15 4 3 10 14 21 13 24 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.0 12.0 16.5 21.5 27.5 33.5 34.5 33.5 31.5 26.5 15.0 14.0 34.5 DAY 20 19 29 10 26 30 1 27 1 1 7 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 25.0 29.0 3.0 8.0 0.0 0.0 0.0 0.0 3.0 9.0 43.0 43.0 DAY 26 23 13 11 2 ** ** ** ** 31 1 6 MONTHLY TOTAL PRECIPITATION IN MM. 31.0 44.5 73.0 6.0 8.0 0.0 0.0 0.0 0.0 3.0 25.0 94.0 284.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 52.2 4.9 0.0 42.9 NO. OF DAYS WITH PRECIPITATION. 5 6 5 2 1 0 0 0 0 1 3 5 28 NO. OF DAYS PRECIPITATION EQUAL 5 6 5 2 1 0 0 0 0 1 3 5 28 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 3 0 0 0 0 0 0 0 0 3 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 82 83 74 66 64 55 57 64 63 83 81 71 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 53 49 34 29 25 26 22 25 27 50 52 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 66 61 44 36 28 28 27 30 33 54 59 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 19 25 4 0 0 0 0 0 0 14 17 104 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 7 3 0 0 0 0 0 0 0 0 0 0 10 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 19 23 1 0 0 0 50 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 31 12 1 2 0 0 0 18 25 28 176 DATE OF START AND END FREEZING START = 7 OCT. END = 4 JUNE IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -1.8 1.0 2.3 11.0 11.8 16.5 20.4 18.5 15.4 11.6 5.2 -2.3 9.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.3 -5.6 -5.2 3.3 4.2 5.6 9.2 7.8 3.7 2.2 -4.6 -7.7 0.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.2 7.5 9.7 18.7 19.4 27.3 31.7 29.2 27.2 21.0 15.0 3.1 17.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.5 13.1 14.9 15.4 15.2 21.7 22.5 21.4 23.5 18.8 19.6 10.8 17.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.25 2.91 3.04 4.67 4.90 4.85 5.77 5.10 3.93 4.07 2.94 2.51 3.91 MEAN OF MIXING RATIO AT 09 GMT. 3.41 3.69 4.00 4.88 5.37 6.72 7.57 5.72 5.91 5.32 4.68 2.99 5.02 MEAN OF MIXING RATIO AT 15 GMT. 3.03 3.51 3.90 4.93 5.40 6.38 6.92 5.55 5.31 4.72 4.16 3.04 4.74 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -22.5 -18.0 -18.0 -3.0 2.5 3.0 6.0 6.0 -2.0 -2.5 -11.5 -24.0 -24.0 DAY 28 1 6 30 1 12 8 2 27 29 26 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.5 11.0 16.0 23.0 25.0 31.5 34.5 31.5 30.5 24.5 20.5 12.5 34.5 DAY 3 28 27 9 31 28 21 2 13 4 11 6 24 HOUR MAXIMUM PRECIPITATION IN MM. 40.0 21.0 28.0 5.0 15.0 4.0 0.0 0.0 0.0 3.0 9.5 36.0 40.0 DAY 9 10 29 17 8 6 ** ** ** 27 30 15 MONTHLY TOTAL PRECIPITATION IN MM. 88.0 36.0 40.0 8.0 60.0 4.0 0.0 0.0 0.0 3.0 16.5 89.0 344.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.6 20.9 0.0 31.5 NO. OF DAYS WITH PRECIPITATION. 4 2 3 2 6 1 0 0 0 1 2 6 27 NO. OF DAYS PRECIPITATION EQUAL 4 2 3 2 6 1 0 0 0 1 2 6 27 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 2 1 0 2 0 0 0 0 0 0 3 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 81 78 67 67 57 54 54 54 65 78 80 68 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 48 48 32 34 27 24 21 25 31 38 55 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 61 56 55 42 45 33 27 25 27 34 42 64 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 13 18 0 0 0 0 0 0 0 17 21 90 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 8 0 1 0 0 0 0 0 0 0 0 9 18 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 28 12 5 0 0 0 50 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 25 28 2 0 0 0 0 3 4 27 31 147 DATE OF START AND END FREEZING START = 27 SEP. END = 30 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MEAN AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -5.2 -2.7 0.9 10.7 14.0 19.6 20.1 19.8 15.1 10.4 5.9 1.3 9.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -12.1 -10.5 -4.7 3.6 5.3 10.4 9.7 9.3 3.8 0.0 -1.3 -5.6 0.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.7 4.9 6.5 17.7 22.7 28.7 30.5 30.3 26.5 20.8 13.2 8.2 17.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.8 15.4 11.2 14.1 17.4 18.3 20.8 21.0 22.7 20.8 14.5 13.8 17.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.90 1.93 2.87 4.42 4.37 5.19 5.14 5.33 3.83 3.62 3.74 2.90 3.77 MEAN OF MIXING RATIO AT 09 GMT. 2.76 3.59 3.52 4.12 5.89 6.75 6.38 7.01 5.76 5.77 4.82 4.07 5.04 MEAN OF MIXING RATIO AT 15 GMT. 2.55 3.35 3.43 4.64 5.26 5.94 5.79 6.45 6.05 4.91 4.37 3.76 4.71 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -25.0 -20.0 -15.0 -3.0 2.0 7.0 7.0 7.0 -2.0 -4.0 -8.0 -13.5 -25.0 DAY 4 8 6 19 2 1 2 31 24 31 28 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 9.0 14.5 23.5 26.5 32.0 33.5 33.0 29.5 27.5 17.5 14.0 33.5 DAY 29 23 31 22 21 22 30 20 3 5 11 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 60.0 28.0 12.5 0.0 0.0 0.0 0.0 0.0 8.2 14.5 11.0 60.0 DAY 21 11 20 4 ** ** ** ** ** 30 23 19 MONTHLY TOTAL PRECIPITATION IN MM. 47.0 146.0 85.0 24.5 0.0 0.0 0.0 0.0 0.0 8.2 44.0 14.0 368.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 75.4 6.6 0.0 18.0 NO. OF DAYS WITH PRECIPITATION. 6 4 6 2 0 0 0 0 0 1 4 2 25 NO. OF DAYS PRECIPITATION EQUAL 6 4 6 2 0 0 0 0 0 1 4 2 25 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 3 2 0 0 0 0 0 0 3 1 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 79 75 64 52 49 48 52 56 68 77 82 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 54 51 30 30 24 21 23 23 33 45 50 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 61 58 40 32 25 23 26 31 36 50 60 42 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 26 17 0 0 0 0 0 0 1 9 24 102 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 18 6 5 0 0 0 0 0 0 0 0 0 29 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 23 20 0 0 0 0 50 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 22 4 0 0 0 0 3 18 19 31 155 DATE OF START AND END FREEZING START = 24 SEP. END = 20 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -4.2 ***** 5.5 10.3 13.8 17.5 ***** 20.9 15.4 10.1 6.4 2.6 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -11.3 ***** -0.5 3.2 5.9 8.2 ***** 10.5 4.7 0.9 -1.5 -5.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.8 5.9 11.6 17.4 21.8 26.8 31.7 31.3 26.2 19.2 14.2 10.2 18.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.1 ***** 12.1 14.2 15.9 18.6 ***** 20.8 21.5 18.3 15.7 15.4 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.23 2.54 3.74 4.22 4.71 4.67 5.28 5.24 4.15 3.85 3.49 2.75 3.91 MEAN OF MIXING RATIO AT 09 GMT. 2.99 3.36 4.07 4.46 5.25 6.23 6.36 6.95 6.03 4.99 4.03 3.69 4.87 MEAN OF MIXING RATIO AT 15 GMT. 2.62 3.18 3.89 4.45 4.67 5.46 6.01 6.37 5.69 4.49 3.56 3.02 4.45 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -23.0 ***** -10.0 -5.5 2.0 5.5 ***** 6.0 -2.5 -3.5 -9.0 -9.0 ****** DAY 14 ** 5 2 4 2 ** 31 26 26 25 10 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.5 11.0 18.0 23.0 28.0 31.5 34.5 34.5 30.5 24.0 18.5 13.0 34.5 DAY 25 20 20 22 27 24 4 20 20 5 1 12 24 HOUR MAXIMUM PRECIPITATION IN MM. 45.0 30.0 18.2 14.0 9.0 0.0 0.0 0.0 0.0 5.0 28.0 11.2 45.0 DAY 12 21 27 11 16 ** ** ** ** 13 5 25 MONTHLY TOTAL PRECIPITATION IN MM. 94.0 66.2 30.8 38.0 14.2 0.0 0.0 0.0 0.0 13.4 48.0 19.4 324.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 59.0 16.1 0.0 24.9 NO. OF DAYS WITH PRECIPITATION. 5 5 5 4 2 0 0 0 0 5 4 2 32 NO. OF DAYS PRECIPITATION EQUAL 5 5 5 4 2 0 0 0 0 5 4 2 32 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 1 2 0 0 0 0 0 0 2 1 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 80 73 63 57 50 45 47 56 67 70 74 63 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 53 42 33 30 25 19 21 26 33 36 41 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 55 59 50 42 33 27 22 24 30 37 39 44 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 *** 8 1 0 0 *** 0 0 0 7 26 *** 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 6 2 0 0 0 0 0 0 0 0 0 0 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 22 24 2 0 0 0 50 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 17 *** 14 3 0 0 *** 0 6 12 17 30 *** DATE OF START AND END FREEZING START = 25 SEP. END = 13 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -2.4 -2.8 1.2 10.3 16.3 20.7 22.0 22.5 16.9 9.3 2.6 -4.9 9.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.6 -9.2 -5.0 1.6 9.3 11.3 12.4 12.5 6.9 1.7 -4.6 -11.7 1.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.7 3.4 7.3 19.1 23.3 30.1 31.5 32.5 26.9 17.0 9.8 1.9 17.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.3 12.6 12.3 17.5 14.0 18.8 19.1 20.0 20.0 15.3 14.4 13.6 15.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.33 2.09 2.88 4.36 5.25 5.04 4.87 5.29 4.56 4.83 3.47 2.23 3.93 MEAN OF MIXING RATIO AT 09 GMT. 3.08 2.79 3.28 4.77 5.70 6.10 6.00 7.29 5.54 5.81 4.40 3.45 4.85 MEAN OF MIXING RATIO AT 15 GMT. 2.82 2.68 3.06 4.41 5.17 5.57 5.77 6.49 4.97 5.91 4.55 3.07 4.54 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -17.5 -10.5 -5.0 6.5 7.5 10.5 7.5 2.0 -1.6 -12.5 -18.5 -18.5 DAY 22 20 9 1 8 3 21 29 27 22 30 10 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 8.0 12.5 24.5 27.5 33.5 34.5 36.5 29.5 23.0 16.5 7.0 36.5 DAY 4 28 24 28 19 12 30 3 5 1 21 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 25.0 32.5 6.0 11.5 0.0 0.0 0.0 0.0 13.0 34.5 23.0 34.5 DAY 29 14 25 18 21 ** ** ** ** 29 10 6 MONTHLY TOTAL PRECIPITATION IN MM. 37.0 48.2 84.0 8.0 21.5 0.0 0.0 0.0 0.0 65.2 79.5 31.0 374.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 45.2 7.9 0.0 46.9 NO. OF DAYS WITH PRECIPITATION. 3 5 5 2 2 0 0 0 0 7 5 2 31 NO. OF DAYS PRECIPITATION EQUAL 3 5 5 2 2 0 0 0 0 7 5 2 31 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 4 0 2 0 0 0 0 5 3 1 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 75 75 69 52 43 39 43 50 79 85 87 65 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 53 50 45 31 28 21 18 21 22 44 53 70 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 58 55 49 33 31 23 21 24 24 54 64 76 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 27 17 2 0 0 0 0 0 0 19 27 122 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 6 4 0 0 0 0 0 0 0 0 0 12 22 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 18 25 24 0 0 0 0 67 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 30 11 0 0 0 0 0 13 27 31 170 DATE OF START AND END FREEZING START = 10 OCT. END = 12 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -8.2 ***** ***** 7.0 14.8 20.3 22.5 21.1 17.6 9.2 5.5 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -15.8 ***** ***** -0.7 6.8 10.4 12.3 9.6 7.2 -2.6 -4.4 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. -0.7 ***** ***** 14.7 22.6 30.3 32.7 32.5 27.9 21.1 15.5 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.1 ***** ***** 15.4 15.8 19.9 20.5 22.9 20.7 23.7 19.9 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.85 ***** ***** 4.25 5.44 4.99 5.77 5.83 4.82 2.76 2.88 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 2.91 ***** ***** 4.91 6.13 6.29 7.10 7.37 6.39 4.05 4.61 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 2.58 ***** ***** 4.64 5.85 5.99 6.78 6.87 5.78 3.87 4.25 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -33.0 ***** ***** -4.5 2.5 7.5 10.0 2.0 2.0 -6.5 -8.5 ***** ****** DAY 28 ** ** 2 3 1 2 29 27 18 17 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 ***** ***** 21.0 26.0 32.5 34.5 34.5 32.5 26.0 21.0 ***** ****** DAY 13 ** ** 17 15 18 4 3 3 2 2 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 23.0 ***** ***** 14.0 16.0 0.0 0.0 0.0 0.0 0.0 5.5 ***** ****** DAY 15 ** ** 1 2 ** ** ** ** ** 13 ** MONTHLY TOTAL PRECIPITATION IN MM. 85.4 ***** ***** 37.4 23.8 0.0 0.0 0.0 0.0 0.0 9.9 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 54.6 39.1 0.0 6.3 NO. OF DAYS WITH PRECIPITATION. 6 *** *** 7 3 0 0 0 0 0 3 *** *** NO. OF DAYS PRECIPITATION EQUAL 6 *** *** 7 3 0 0 0 0 0 3 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 *** *** 1 1 0 0 0 0 0 0 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 *** *** 80 63 47 46 54 56 64 74 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 71 *** *** 43 33 21 21 21 24 24 38 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 *** *** 49 39 26 24 25 28 28 44 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 *** *** 2 0 0 0 0 0 10 24 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 *** *** 0 0 0 0 0 0 0 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 16 *** *** 0 0 0 0 0 0 0 0 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** *** 0 0 20 29 29 11 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. 31 *** *** 23 0 0 0 0 0 24 26 *** *** DATE OF START AND END FREEZING START = 5 OCT. END = 30 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -6.2 -4.5 3.0 8.8 11.8 18.7 ***** 21.2 16.0 ***** 5.2 -2.9 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -13.0 -11.9 -3.5 0.2 3.1 8.2 ***** 10.2 3.9 ***** -3.2 -8.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.7 3.0 9.6 17.6 20.6 29.2 ***** 32.2 28.0 ***** 13.5 3.1 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.7 14.9 13.1 17.4 17.5 21.0 ***** 22.0 24.1 ***** 16.7 12.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.90 2.26 3.83 4.25 4.31 6.19 ***** 6.17 4.45 ***** 3.53 2.65 ***** MEAN OF MIXING RATIO AT 09 GMT. 2.73 3.35 4.55 4.55 5.04 6.68 ***** 8.24 5.47 ***** 4.36 3.60 ***** MEAN OF MIXING RATIO AT 15 GMT. 2.55 3.07 4.20 4.79 4.65 6.27 ***** 7.13 5.04 ***** 4.40 3.24 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -22.5 -23.0 -11.5 -4.5 -5.5 5.0 ***** 7.5 -3.5 ***** -6.5 -15.5 ****** DAY 27 1 2 27 2 1 ** 29 30 ** 23 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.5 13.0 20.0 21.5 27.0 32.0 ***** 34.5 32.0 ***** 19.0 12.5 ****** DAY 1 13 10 9 22 13 ** 17 5 ** 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 37.0 25.0 33.8 11.0 21.0 0.0 ***** 0.0 0.0 ***** 15.0 31.0 ****** DAY 17 24 20 17 10 ** ** ** ** ** 11 4 MONTHLY TOTAL PRECIPITATION IN MM. 51.0 39.0 124.8 18.6 21.0 0.0 ***** 0.0 0.0 ***** 29.2 50.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 64.3 11.9 0.0 23.9 NO. OF DAYS WITH PRECIPITATION. 3 3 10 2 1 0 *** 0 0 *** 4 4 *** NO. OF DAYS PRECIPITATION EQUAL 3 3 10 2 1 0 *** 0 0 *** 4 4 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 5 1 1 0 *** 0 0 *** 1 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 81 84 72 62 64 *** 57 64 *** 76 85 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 67 57 33 31 24 *** 24 21 *** 42 67 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 71 64 44 35 27 *** 27 25 *** 51 70 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 26 9 1 1 0 *** 0 0 *** 13 27 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 *** 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 14 5 0 0 0 0 *** 0 0 *** 0 8 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 18 *** 31 8 *** 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 28 26 18 3 0 *** 0 3 *** 28 30 *** DATE OF START AND END FREEZING START = 28 SEP. END = 4 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MEAN AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.4 -1.2 3.4 8.7 13.7 19.1 21.6 19.2 15.7 9.3 5.8 -4.8 9.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.7 -8.8 -4.8 -1.1 3.8 7.5 10.4 9.0 3.1 -3.1 -3.2 -10.8 -0.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.9 6.5 11.6 18.5 23.5 30.7 32.8 29.5 28.4 21.7 14.8 1.1 18.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.6 15.3 16.4 19.6 19.7 23.2 22.4 20.5 25.3 24.8 18.0 11.9 19.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.81 2.54 3.20 4.14 4.73 5.73 6.47 5.34 3.80 2.86 3.57 2.33 3.96 MEAN OF MIXING RATIO AT 09 GMT. 3.72 3.58 4.13 3.93 4.98 6.36 7.74 7.24 5.36 4.48 4.88 3.18 4.96 MEAN OF MIXING RATIO AT 15 GMT. 3.60 3.49 3.79 4.37 4.89 6.06 7.22 6.75 5.00 3.72 4.49 2.95 4.69 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.0 -15.0 -11.5 -5.0 -1.5 2.0 4.5 6.0 -1.5 -9.5 -8.5 -22.0 -22.0 DAY 5 8 1 10 14 9 27 28 27 31 30 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 12.5 18.5 22.5 29.0 34.5 35.0 32.5 31.0 27.5 20.0 14.5 35.0 DAY 27 25 23 20 31 28 24 1 3 1 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 21.0 29.0 11.5 3.0 13.0 3.0 0.0 0.0 0.0 0.0 21.0 57.0 57.0 DAY 2 1 24 25 17 12 ** ** ** ** 13 19 MONTHLY TOTAL PRECIPITATION IN MM. 29.0 47.0 31.5 4.2 18.2 3.0 0.0 0.0 0.0 0.0 32.0 108.0 272.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 39.4 9.3 0.0 51.3 NO. OF DAYS WITH PRECIPITATION. 3 4 5 2 2 1 0 0 0 0 3 9 29 NO. OF DAYS PRECIPITATION EQUAL 3 4 5 2 2 1 0 0 0 0 3 9 29 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 0 1 0 0 0 0 0 1 2 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 81 75 76 64 61 58 53 58 66 76 80 69 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 53 55 46 27 24 21 22 25 19 24 43 65 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 62 67 52 40 31 25 25 27 24 28 50 71 42 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 26 21 3 0 0 0 0 0 7 15 27 124 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 1 1 0 0 0 0 0 0 0 0 0 13 15 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 22 31 17 5 0 0 0 75 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 28 27 21 2 0 0 0 4 26 28 31 196 DATE OF START AND END FREEZING START = 27 SEP. END = 14 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -4.3 -2.3 1.9 8.8 13.5 17.4 20.5 18.8 15.4 12.7 3.2 -4.2 8.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -11.1 -9.0 -4.6 1.3 5.2 6.0 9.5 7.3 3.3 2.8 -2.7 -10.0 -0.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.4 4.4 8.4 16.3 21.8 28.9 31.6 30.4 27.5 22.6 9.1 1.5 17.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.5 13.4 13.0 15.0 16.6 22.9 22.1 23.1 24.3 19.8 11.8 11.5 17.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.04 2.39 3.09 4.64 4.76 5.69 5.89 6.35 4.12 3.95 3.63 2.22 4.06 MEAN OF MIXING RATIO AT 09 GMT. 3.10 3.45 4.28 6.04 5.62 7.23 7.41 7.50 6.11 5.28 4.50 3.10 5.30 MEAN OF MIXING RATIO AT 15 GMT. 2.79 3.27 3.76 5.69 5.63 6.58 7.00 6.93 5.29 4.77 4.07 2.97 4.89 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -19.5 -15.0 -9.5 -4.5 2.0 2.5 6.5 3.5 2.0 -3.5 -7.0 -17.0 -19.5 DAY 1 17 14 2 6 1 8 11 11 26 21 24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 9.0 15.0 21.0 27.0 34.5 34.0 32.5 29.0 26.5 19.5 6.0 34.5 DAY 14 28 30 21 30 29 22 16 14 4 3 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 9.0 22.0 20.5 30.0 0.0 0.0 0.0 0.0 0.0 50.0 40.0 50.0 DAY 27 6 16 8 4 ** ** ** ** ** 30 20 MONTHLY TOTAL PRECIPITATION IN MM. 18.5 22.0 77.0 80.5 58.2 0.0 0.0 0.0 0.0 0.0 188.2 61.2 505.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 23.2 27.4 0.0 49.3 NO. OF DAYS WITH PRECIPITATION. 3 3 7 7 5 0 0 0 0 0 9 4 38 NO. OF DAYS PRECIPITATION EQUAL 3 3 7 7 5 0 0 0 0 0 9 4 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 3 4 2 0 0 0 0 0 7 1 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 80 77 75 58 61 47 65 60 62 78 80 69 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 60 58 49 32 26 23 25 23 28 54 63 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 71 66 62 55 41 29 26 28 26 33 60 69 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 25 21 1 0 0 0 0 0 0 15 27 116 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 2 1 0 0 0 0 0 0 0 0 13 27 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 31 20 0 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 28 31 9 0 0 0 0 0 6 23 31 159 DATE OF START AND END FREEZING START = 26 OCT. END = 15 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -4.9 -1.0 2.4 9.2 16.4 19.5 21.4 21.8 17.2 10.3 5.9 0.4 9.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -13.2 -7.2 -4.0 1.1 6.7 9.9 12.1 12.4 7.0 2.9 -3.5 -6.2 1.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.4 5.1 8.9 17.3 26.2 29.0 30.7 31.1 27.3 17.7 15.3 7.0 18.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.6 12.3 12.9 16.1 19.5 19.1 18.6 18.7 20.3 14.8 18.8 13.2 16.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.88 2.70 3.40 4.23 5.02 4.92 5.87 5.27 4.50 4.59 3.05 2.85 4.02 MEAN OF MIXING RATIO AT 09 GMT. 2.93 3.30 4.20 4.66 6.08 6.69 7.86 7.47 6.36 5.98 4.71 3.84 5.34 MEAN OF MIXING RATIO AT 15 GMT. 2.71 3.11 3.97 4.14 5.71 6.15 7.02 6.51 5.76 5.51 4.41 3.54 4.88 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 -14.0 -8.0 -5.0 4.0 7.5 10.0 9.5 3.0 -3.0 -9.0 -11.0 -20.0 DAY 17 12 15 2 1 1 15 30 30 12 30 2 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 8.5 13.5 24.0 45.0 31.0 33.5 33.5 32.5 26.0 20.0 12.0 45.0 DAY 26 25 27 18 21 5 20 27 7 2 14 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 21.0 16.0 13.0 9.5 0.0 10.2 0.0 0.0 15.0 17.5 47.0 47.0 DAY 27 10 2 27 31 ** 28 ** ** 23 3 23 MONTHLY TOTAL PRECIPITATION IN MM. 22.4 39.2 109.0 39.0 19.0 0.0 28.2 0.0 0.0 51.5 17.5 131.0 456.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 37.3 12.7 6.2 43.8 NO. OF DAYS WITH PRECIPITATION. 2 4 12 5 3 0 5 0 0 5 1 6 43 NO. OF DAYS PRECIPITATION EQUAL 2 4 12 5 3 0 5 0 0 5 1 6 43 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 5 1 0 0 1 0 0 3 1 4 17 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 77 76 68 56 42 47 42 51 67 69 75 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 53 56 34 28 23 26 23 24 44 40 55 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 61 62 38 33 27 31 25 27 48 46 61 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 19 19 7 0 0 0 0 0 0 17 25 115 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 9 2 0 0 0 0 0 0 0 0 0 0 11 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 12 26 26 7 0 0 0 72 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 0 0 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 0 0 0 0 0 0 0 1 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 28 26 13 0 0 0 0 0 4 25 28 155 DATE OF START AND END FREEZING START = 11 OCT. END = 13 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -3.3 -4.4 4.1 9.1 15.8 19.4 22.2 22.5 18.1 12.5 5.6 2.3 10.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -9.6 -10.5 -2.2 2.0 7.5 9.4 12.0 13.1 6.8 1.5 -2.0 -5.5 1.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.9 1.6 10.4 16.2 24.2 29.3 32.4 32.0 29.3 23.5 13.2 10.2 18.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.5 12.1 12.6 14.2 16.7 19.9 20.4 18.9 22.5 22.0 15.2 15.7 16.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.22 2.19 3.20 3.90 4.55 4.71 6.34 5.84 4.11 3.56 3.20 2.69 3.88 MEAN OF MIXING RATIO AT 09 GMT. 3.36 2.90 3.75 5.08 5.76 6.59 8.07 7.33 6.57 5.47 4.08 3.60 5.21 MEAN OF MIXING RATIO AT 15 GMT. 2.85 2.73 3.64 4.69 5.42 5.79 6.78 5.96 5.72 4.96 3.49 3.31 4.61 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.5 -19.0 -7.5 -5.0 2.5 5.0 8.5 11.0 4.5 -2.0 -9.0 -16.5 -19.0 DAY 3 6 17 3 6 24 27 27 30 23 24 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.0 8.5 17.5 21.0 29.0 31.5 35.5 34.0 33.0 26.5 21.5 15.5 35.5 DAY 8 29 26 24 27 14 12 2 10 4 4 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 36.0 26.0 15.0 0.0 0.0 5.0 0.0 0.0 3.2 29.0 16.0 36.0 DAY 13 2 5 26 ** ** 27 ** ** 14 13 17 MONTHLY TOTAL PRECIPITATION IN MM. 35.2 94.0 93.0 43.0 0.0 0.0 5.0 0.0 0.0 5.2 66.5 39.0 380.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 58.3 11.3 1.3 29.1 NO. OF DAYS WITH PRECIPITATION. 5 6 7 8 0 0 1 0 0 2 5 4 38 NO. OF DAYS PRECIPITATION EQUAL 5 6 7 8 0 0 1 0 0 2 5 4 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 5 1 0 0 0 0 0 0 2 2 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 79 66 60 50 46 47 45 48 59 67 72 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 63 44 39 27 23 24 22 23 27 39 42 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 69 52 42 31 24 25 23 24 31 40 49 40 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 31 28 9 5 0 0 0 0 0 0 13 20 106 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 12 0 0 0 0 0 0 0 0 0 2 25 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 14 29 27 12 0 0 0 82 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 29 22 9 0 0 0 0 0 9 18 30 148 DATE OF START AND END FREEZING START = 11 OCT. END = 10 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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.***** ***** 2.7 8.8 14.1 20.5 23.1 20.5 16.4 11.7 5.0 -4.7 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** -4.2 1.3 5.1 10.5 14.0 8.9 4.2 0.2 -3.3 -12.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** 9.5 16.2 23.1 30.4 32.2 32.1 28.6 23.1 13.3 3.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** 13.7 14.9 18.0 19.9 18.2 23.2 24.4 22.9 16.6 15.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** 3.11 4.25 4.22 5.00 6.01 6.03 3.97 3.59 3.31 1.82 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** 4.03 5.46 5.59 6.32 6.81 10.12 7.26 7.20 5.22 2.89 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** 3.78 5.19 4.86 5.70 5.88 8.33 6.21 6.67 5.01 3.04 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** -10.0 -6.5 1.5 7.5 12.0 5.0 -1.5 -3.0 -8.5 -17.0 ****** DAY ** ** 31 1 1 1 7 18 14 23 18 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** 15.5 23.0 30.0 35.0 35.5 34.0 33.0 28.5 17.0 14.0 ****** DAY ** ** 26 15 25 27 1 5 1 9 5 1 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** 26.0 8.0 7.0 0.0 0.0 0.0 0.0 0.0 17.0 47.5 ****** DAY ** ** 29 28 7 ** ** ** ** ** 17 4 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** 92.0 32.2 14.0 0.0 0.0 0.0 0.0 0.0 44.5 111.1 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 31.3 15.7 0.0 53.0 NO. OF DAYS WITH PRECIPITATION. *** *** 8 8 2 0 0 0 0 0 6 5 *** NO. OF DAYS PRECIPITATION EQUAL *** *** 8 8 2 0 0 0 0 0 6 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** 4 0 0 0 0 0 0 0 1 3 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** 74 69 53 43 42 60 57 66 72 73 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** 50 42 30 21 20 30 26 36 49 55 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** 54 49 32 23 22 31 29 42 58 66 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** 19 4 0 0 0 0 0 0 17 28 *** 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 *** *** 0 0 0 0 0 0 0 0 0 8 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** 0 0 1 18 29 31 12 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. *** *** 27 10 0 0 0 0 3 16 25 31 *** DATE OF START AND END FREEZING START = 13 SEP. END = 10 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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.***** -6.1 2.3 8.4 15.1 18.3 21.3 17.6 ***** 10.5 6.5 0.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** -13.9 -4.6 -0.3 4.4 6.4 10.4 4.8 ***** -0.9 -4.2 -9.4 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 1.8 9.3 17.1 25.7 30.3 32.2 30.5 ***** 21.9 17.1 9.8 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 15.7 13.9 17.3 21.3 23.9 21.8 25.8 ***** 22.8 21.3 19.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 1.80 3.10 3.68 4.59 4.28 4.36 4.34 ***** 3.64 3.01 2.20 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 3.04 4.29 5.24 6.37 7.15 7.15 6.17 ***** 5.02 5.09 3.82 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 2.91 4.16 5.41 6.81 6.96 5.37 6.31 ***** 5.38 5.23 3.97 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -25.5 -12.0 -4.5 1.0 4.0 6.5 3.0 ***** -4.5 -8.5 -21.0 ****** DAY ** 13 1 7 10 1 20 20 ** 15 30 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 7.0 15.0 25.0 29.0 34.0 34.0 34.0 ***** 28.0 23.0 18.0 ****** DAY ** 20 31 28 15 30 15 1 ** 17 5 3 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 17.0 29.0 32.0 0.0 0.0 0.0 0.0 ***** 3.0 8.0 8.0 ****** DAY ** 15 14 4 ** ** ** ** ** 27 13 25 MONTHLY TOTAL PRECIPITATION IN MM. ***** 55.0 74.0 47.0 0.0 0.0 0.0 0.0 ***** 3.0 8.0 16.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 63.5 23.2 0.0 13.3 NO. OF DAYS WITH PRECIPITATION. *** 4 5 2 0 0 0 0 *** 1 1 3 *** NO. OF DAYS PRECIPITATION EQUAL *** 4 5 2 0 0 0 0 *** 1 1 3 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 3 2 2 0 0 0 0 *** 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 76 76 67 64 50 40 59 *** 69 74 76 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 64 54 39 27 24 21 20 *** 28 39 50 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 71 63 53 38 31 21 28 *** 39 50 62 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 27 16 7 0 0 0 0 *** 4 18 31 *** 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 *** 10 0 0 0 0 0 0 *** 0 0 4 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 20 28 20 *** 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 *** 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 *** 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** 28 28 19 0 0 0 0 *** 23 28 31 *** DATE OF START AND END FREEZING START = 2 OCT. END = 27 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MEAN AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -1.9 -3.2 4.2 10.7 13.0 ***** 21.8 20.8 16.1 11.4 6.3 -3.5 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -7.9 -10.3 -2.4 1.6 2.3 ***** 9.5 8.0 3.2 1.6 -3.1 -10.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.1 3.8 10.9 19.8 23.8 ***** 34.0 33.6 29.0 21.2 15.6 3.2 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.0 14.1 13.3 18.2 21.5 ***** 24.5 25.6 25.8 19.6 18.7 13.4 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.72 2.37 3.75 4.64 4.61 ***** 6.03 4.41 4.20 4.43 3.14 2.34 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.01 3.36 4.87 6.18 4.90 ***** 9.62 6.99 5.92 6.77 5.55 3.29 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.82 3.65 4.95 6.25 4.92 ***** 7.57 5.45 5.69 6.59 5.02 3.05 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -17.5 -8.5 -4.5 -1.5 ***** 7.0 4.0 0.5 -2.0 -8.0 -27.0 ****** DAY 29 14 8 13 4 ** 2 26 21 31 28 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 9.0 11.5 19.0 25.5 28.0 ***** 37.0 36.0 34.0 27.0 21.0 9.0 ****** DAY 22 26 22 29 30 ** 9 7 8 10 2 13 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.2 27.0 50.0 5.6 0.0 ***** 0.0 0.0 0.0 27.0 15.0 45.0 ****** DAY 21 1 6 17 ** ** ** ** ** 15 16 10 MONTHLY TOTAL PRECIPITATION IN MM. 29.4 54.0 72.0 14.3 0.0 ***** 0.0 0.0 0.0 31.0 27.0 202.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 36.2 3.3 0.0 60.5 NO. OF DAYS WITH PRECIPITATION. 6 4 5 5 0 *** 0 0 0 2 2 9 *** NO. OF DAYS PRECIPITATION EQUAL 6 4 5 5 0 *** 0 0 0 2 2 9 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 2 0 0 *** 0 0 0 1 2 7 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 83 79 79 75 69 *** 60 49 63 75 76 78 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 61 55 39 24 *** 26 19 22 41 50 63 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 79 68 49 31 *** 27 21 29 50 53 70 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 25 10 1 0 *** 0 0 0 0 15 21 *** 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 0 4 0 0 0 *** 0 0 0 0 0 5 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 *** 31 31 13 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 *** 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 *** 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 27 28 8 2 *** 0 0 0 10 27 28 *** DATE OF START AND END FREEZING START = 8 OCT. END = 24 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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.-10.4 -8.2 -3.3 7.8 12.6 17.0 21.0 18.8 14.7 10.5 6.6 -2.6 7.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -18.8 -16.4 -9.8 0.9 4.7 6.9 9.8 7.6 3.0 -1.7 -2.7 -8.6 -2.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. -2.1 0.0 3.2 14.7 20.6 27.1 32.3 30.0 26.5 22.7 15.9 3.4 16.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.7 16.4 13.0 13.8 15.9 20.2 22.5 22.4 23.5 24.4 18.6 12.0 18.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.10 1.21 1.82 4.23 5.78 5.79 6.85 5.15 3.71 2.92 3.10 2.19 3.65 MEAN OF MIXING RATIO AT 09 GMT. 2.10 2.43 2.88 4.66 6.42 7.11 8.73 7.17 6.74 5.97 5.03 3.17 5.20 MEAN OF MIXING RATIO AT 15 GMT. 1.64 2.12 2.86 5.01 6.32 6.24 8.03 6.18 7.00 5.63 4.97 3.03 4.92 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -28.5 -28.0 -19.0 -8.0 0.0 3.0 5.0 5.0 1.0 -6.5 -9.0 -23.0 -28.5 DAY 5 13 11 2 5 19 1 11 12 31 30 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 5.0 7.0 11.5 20.5 27.0 33.0 34.0 34.0 29.0 29.0 24.0 11.0 34.0 DAY 31 21 29 21 22 30 2 6 25 6 4 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 45.0 29.0 10.0 18.0 27.0 0.0 0.0 0.0 0.0 0.0 3.0 13.0 45.0 DAY 17 24 16 27 6 ** ** ** ** ** 12 14 MONTHLY TOTAL PRECIPITATION IN MM. 80.0 33.0 29.0 49.0 37.0 0.0 0.0 0.0 0.0 0.0 4.0 42.0 274.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 51.8 31.4 0.0 16.8 NO. OF DAYS WITH PRECIPITATION. 4 2 3 4 3 0 0 0 0 0 2 4 22 NO. OF DAYS PRECIPITATION EQUAL 4 2 3 4 3 0 0 0 0 0 2 4 22 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 1 2 3 1 0 0 0 0 0 0 2 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 68 67 74 80 70 67 58 57 64 69 73 69 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 59 53 40 38 29 26 25 28 33 41 60 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 66 63 55 48 32 32 27 38 39 48 67 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 30 28 26 3 0 0 0 0 0 4 14 21 126 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 16 8 0 0 0 0 0 0 0 0 8 54 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 28 20 0 0 0 0 52 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 29 30 14 1 0 0 0 0 29 20 28 182 DATE OF START AND END FREEZING START = 1 OCT. END = 5 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -8.3 -4.1 1.7 8.7 13.1 17.1 20.4 20.2 16.7 9.8 6.4 3.7 8.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -15.2 -10.6 -3.6 1.6 5.2 6.0 9.5 9.4 4.6 -0.5 -1.3 -4.8 0.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. -1.4 2.5 7.0 15.8 21.0 28.2 31.4 31.0 28.8 20.1 14.2 12.1 17.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.8 13.1 10.6 14.2 15.8 22.2 21.9 21.6 24.2 20.6 15.5 16.9 17.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.39 2.00 2.84 3.92 4.20 4.14 4.52 6.87 5.09 3.40 3.26 2.35 3.67 MEAN OF MIXING RATIO AT 09 GMT. 2.28 3.18 4.08 4.76 5.10 6.72 9.24 8.68 6.97 4.61 4.63 3.86 5.34 MEAN OF MIXING RATIO AT 15 GMT. 2.08 2.88 3.71 4.41 5.98 6.61 8.10 8.11 6.85 4.23 4.16 3.95 5.09 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -26.5 -27.5 -11.0 -3.0 -0.5 3.0 5.5 7.5 0.0 -3.5 -8.0 -9.5 -27.5 DAY 22 18 13 6 1 5 23 10 30 9 17 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 11.0 15.0 22.5 27.0 32.5 33.0 34.0 33.5 26.0 20.0 16.5 34.0 DAY 8 28 30 19 27 30 22 14 6 1 4 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 53.0 30.0 30.0 53.0 13.5 0.0 0.0 0.0 0.0 0.0 24.0 3.0 53.0 DAY 8 21 5 27 6 ** ** ** ** ** 12 15 MONTHLY TOTAL PRECIPITATION IN MM. 90.0 85.0 50.0 99.0 23.5 0.0 0.0 0.0 0.0 0.0 67.5 3.0 418.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.8 29.3 0.0 16.9 NO. OF DAYS WITH PRECIPITATION. 4 3 2 4 2 0 0 0 0 0 5 1 21 NO. OF DAYS PRECIPITATION EQUAL 4 3 2 4 2 0 0 0 0 0 5 1 21 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 2 4 2 0 0 0 0 0 3 0 16 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 73 70 67 55 51 45 69 70 68 66 63 64 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 65 60 39 30 26 28 28 25 29 43 43 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 67 64 47 44 33 34 36 32 33 46 51 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 20 14 0 0 0 0 0 0 0 9 23 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 8 0 0 0 0 0 0 0 0 0 0 30 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 28 26 12 0 0 0 73 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 26 10 1 0 0 0 1 22 16 29 163 DATE OF START AND END FREEZING START = 30 SEP. END = 1 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MEAN AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -0.8 0.2 3.7 ***** 13.6 17.5 21.9 21.9 14.9 10.5 4.9 -1.6 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -7.0 -6.5 -4.1 ***** 4.4 6.0 10.8 9.9 3.9 1.8 -1.3 -7.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.4 6.9 11.4 ***** 22.8 28.9 33.0 33.9 25.8 19.3 11.1 4.2 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.4 13.4 15.5 ***** 18.4 22.9 22.2 24.0 21.9 17.5 12.4 12.1 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.24 2.14 3.04 ***** 5.56 3.77 4.17 7.30 4.90 5.11 3.81 2.25 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.16 3.30 4.16 ***** 8.08 8.33 8.70 15.18 7.74 8.90 5.98 3.24 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.12 3.11 3.84 ***** 7.96 7.27 7.75 12.08 7.25 6.78 5.57 2.91 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 -12.5 -11.0 ***** -2.5 0.0 8.0 7.5 -1.0 -1.5 -11.4 -20.0 ****** DAY 28 19 14 ** 7 15 2 22 25 12 19 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 12.0 18.0 ***** 29.0 32.5 36.5 36.5 32.0 23.0 18.0 10.0 ****** DAY 1 8 30 ** 31 26 21 9 4 1 5 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 23.0 40.0 35.0 ***** 6.5 0.0 0.0 0.0 0.0 6.0 46.0 10.0 ****** DAY 24 1 12 ** 4 ** ** ** ** 19 7 5 MONTHLY TOTAL PRECIPITATION IN MM. 49.0 56.0 84.0 ***** 21.5 0.0 0.0 0.0 0.0 17.0 214.0 24.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 40.6 4.6 0.0 54.8 NO. OF DAYS WITH PRECIPITATION. 3 3 5 *** 5 0 0 0 0 6 9 4 *** NO. OF DAYS PRECIPITATION EQUAL 3 3 5 *** 5 0 0 0 0 6 9 4 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 3 *** 0 0 0 0 0 0 7 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 66 65 69 *** 77 46 38 71 71 82 73 71 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 49 48 48 *** 43 30 24 41 34 55 65 56 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 57 54 54 *** 54 33 27 41 39 53 69 61 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 23 14 *** 0 0 0 0 0 0 10 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 4 0 0 *** 0 0 0 0 0 0 0 6 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 13 26 31 5 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 27 29 *** 3 1 0 0 3 10 17 28 *** DATE OF START AND END FREEZING START = 23 SEP. END = 15 JUNE IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. 1.1 ***** 5.1 8.6 13.1 17.4 ***** 20.9 16.6 10.3 5.4 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -5.8 ***** -2.9 1.8 4.6 7.2 9.4 8.7 4.9 -0.6 -5.6 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.0 ***** 13.0 15.5 21.7 27.6 ***** 33.1 28.1 21.3 16.3 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.8 ***** 15.9 13.7 17.1 20.4 ***** 24.4 23.2 21.9 21.9 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.44 ***** 2.68 4.31 5.32 7.05 7.48 6.91 5.04 3.50 2.37 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 4.04 ***** 4.24 5.41 7.60 10.29 11.37 10.97 7.18 6.17 4.18 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 3.94 ***** 4.29 5.24 7.14 9.79 10.96 10.91 5.90 5.43 3.98 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 ***** -8.0 -5.0 -0.5 4.0 4.5 6.0 0.5 -4.5 -18.5 ***** ****** DAY 21 ** 6 1 10 14 2 10 25 14 29 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 ***** 19.0 20.5 25.0 31.0 ***** 35.0 32.0 26.0 22.0 ***** ****** DAY 11 ** 31 30 22 15 ** 8 1 3 17 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 ***** 9.0 23.0 12.0 0.0 0.0 0.0 0.0 3.0 0.0 ***** ****** DAY 13 ** 18 21 25 ** ** ** ** 22 ** ** MONTHLY TOTAL PRECIPITATION IN MM. 24.0 ***** 14.0 47.0 43.0 0.0 0.0 0.0 0.0 3.0 0.0 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 29.0 68.7 0.0 2.3 NO. OF DAYS WITH PRECIPITATION. 2 *** 2 3 6 0 0 0 0 1 0 *** *** NO. OF DAYS PRECIPITATION EQUAL 2 *** 2 3 6 0 0 0 0 1 0 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 *** 0 3 1 0 0 0 0 0 0 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 *** 62 72 74 84 76 74 69 72 66 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 *** 40 43 43 40 31 30 27 35 32 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 65 *** 50 52 53 51 39 39 28 38 40 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 *** 15 3 0 0 0 0 0 5 21 *** *** 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 0 *** 0 0 0 0 *** 0 0 0 0 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 9 *** 29 13 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. 29 *** 24 9 1 0 0 0 0 24 27 *** *** DATE OF START AND END FREEZING START = 5 OCT. END = 10 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -7.9 0.9 2.4 9.2 15.0 18.5 20.1 20.0 ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -13.2 -5.6 -2.9 2.1 5.9 7.4 9.8 9.0 ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. -2.7 7.5 7.7 16.2 24.1 29.5 30.5 30.9 29.1 22.4 14.3 9.1 18.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.5 13.1 10.6 14.1 18.2 22.1 20.7 21.9 ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.61 2.79 3.18 4.44 4.97 7.07 8.30 8.09 4.51 3.10 2.65 2.69 4.45 MEAN OF MIXING RATIO AT 09 GMT. 2.66 4.53 4.44 6.47 10.41 12.11 14.34 15.11 9.64 7.17 4.23 3.88 7.92 MEAN OF MIXING RATIO AT 15 GMT. 2.22 3.94 4.27 6.46 9.10 11.26 11.91 13.49 10.41 6.68 4.25 3.63 7.30 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -28.5 -14.0 -8.0 -3.5 3.0 2.0 1.0 5.0 ***** ***** ***** ***** ****** DAY 27 6 8 6 2 7 26 5 ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 17.0 15.5 21.5 29.5 30.0 35.0 33.0 32.0 30.0 20.0 16.0 35.0 DAY 30 11 30 30 31 3 2 21 10 2 1 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 29.0 46.0 26.0 4.5 0.0 0.0 0.0 0.0 0.0 0.0 17.0 46.0 DAY 12 19 11 14 11 ** ** ** ** ** ** 23 MONTHLY TOTAL PRECIPITATION IN MM. 63.0 91.0 194.0 51.5 4.5 0.0 0.0 0.0 0.0 0.0 0.0 17.0 421.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 82.7 13.3 0.0 4.0 NO. OF DAYS WITH PRECIPITATION. 5 7 6 6 1 0 0 0 0 0 0 1 26 NO. OF DAYS PRECIPITATION EQUAL 5 7 6 6 1 0 0 0 0 0 0 1 26 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 4 6 1 0 0 0 0 0 0 0 1 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 78 75 72 65 81 81 83 58 61 69 75 73 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 63 61 50 48 41 48 45 33 34 40 50 48 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 69 68 61 54 51 49 53 45 42 47 55 55 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 20 16 0 0 0 0 0 *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 21 0 0 0 0 0 0 0 0 0 0 0 21 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 18 25 27 16 1 0 0 87 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 27 25 11 0 0 0 0 *** *** *** *** *** DATE OF START AND END FREEZING START = 1 JAN. END = 29 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -2.7 -2.1 2.0 8.0 13.4 18.3 22.7 21.4 ***** 12.0 5.4 -2.5 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -9.7 -9.6 -4.5 0.6 4.2 8.0 11.0 9.0 ***** 1.7 -0.1 -8.5 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.3 5.4 8.5 15.5 22.6 28.7 34.3 33.8 27.8 22.3 11.0 3.5 18.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.0 15.0 13.0 14.9 18.4 20.7 23.3 24.8 ***** 20.6 11.1 12.0 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.88 1.86 2.60 3.88 4.62 6.08 6.98 6.00 ***** 4.35 4.33 2.31 ***** MEAN OF MIXING RATIO AT 09 GMT. 2.99 3.24 3.90 5.73 6.95 9.73 8.64 8.39 6.05 4.75 4.83 3.24 5.70 MEAN OF MIXING RATIO AT 15 GMT. 2.80 3.17 4.12 5.52 6.03 8.87 7.64 7.15 5.14 4.98 4.16 2.95 5.21 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -23.0 -20.0 -13.5 -6.0 0.0 4.0 7.0 5.0 ***** -3.0 -5.5 -18.0 ****** DAY 19 8 9 14 6 4 6 30 ** 27 29 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 13.0 15.0 24.5 28.5 31.5 37.0 35.0 31.0 26.0 20.0 11.0 37.0 DAY 12 21 2 27 27 30 18 1 1 3 3 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 0.0 12.0 18.0 11.0 4.0 0.0 0.0 0.0 0.0 21.0 25.0 25.0 DAY 16 ** 29 17 5 21 ** ** ** ** 3 21 MONTHLY TOTAL PRECIPITATION IN MM. 31.0 0.0 24.3 61.0 11.0 4.0 0.0 0.0 0.0 0.0 40.0 65.0 236.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 23.4 32.2 0.0 44.4 NO. OF DAYS WITH PRECIPITATION. 2 0 5 7 1 1 0 0 0 0 4 3 23 NO. OF DAYS PRECIPITATION EQUAL 2 0 5 7 1 1 0 0 0 0 4 3 23 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 1 3 1 0 0 0 0 0 2 3 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 68 68 68 63 66 61 61 *** 73 86 78 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 53 53 47 37 35 23 23 22 26 52 59 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 63 67 57 43 43 26 25 24 33 52 62 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 22 19 3 0 0 0 0 *** 0 2 24 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 9 3 0 0 0 0 0 0 0 0 0 9 21 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 30 31 3 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. 30 27 26 10 1 0 0 0 *** 10 16 30 *** DATE OF START AND END FREEZING START = 14 OCT. END = 6 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MEAN AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** -2.7 3.2 10.7 14.9 18.6 21.7 21.5 17.4 11.4 7.1 5.5 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** -8.9 -2.9 2.6 5.6 8.0 11.3 10.6 6.2 0.5 -3.9 -3.8 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.5 3.3 9.3 18.8 24.1 29.1 32.2 32.4 28.5 22.2 18.2 14.9 19.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 12.2 12.2 16.2 18.5 21.1 20.9 21.8 22.3 21.7 22.1 18.7 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.27 2.39 3.53 5.07 4.44 6.32 6.67 6.83 5.06 3.81 2.51 2.72 4.22 MEAN OF MIXING RATIO AT 09 GMT. 2.31 3.51 4.54 3.86 5.93 6.90 8.80 7.42 5.91 4.66 3.24 4.51 5.13 MEAN OF MIXING RATIO AT 15 GMT. 1.93 2.54 5.67 5.15 7.16 6.34 7.70 6.96 6.41 4.70 3.13 3.74 5.12 ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -23.0 -14.5 -4.0 0.0 5.0 9.0 8.0 3.0 -3.0 -7.8 -10.0 ****** DAY ** 3 4 25 2 1 3 15 7 26 18 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.0 8.0 20.0 25.0 29.0 32.0 37.0 36.0 32.5 27.0 22.0 20.0 37.0 DAY 24 7 28 14 28 25 12 19 3 1 18 13 24 HOUR MAXIMUM PRECIPITATION IN MM. 35.0 32.0 53.0 9.0 0.0 3.0 0.0 3.0 0.0 8.0 0.0 15.0 53.0 DAY 5 9 30 28 ** 18 ** 7 ** 12 ** 5 MONTHLY TOTAL PRECIPITATION IN MM. 79.0 70.0 152.0 11.0 0.0 3.0 0.0 3.0 0.0 17.0 0.0 30.0 365.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 82.5 3.8 0.8 12.9 NO. OF DAYS WITH PRECIPITATION. 4 6 9 2 0 1 0 1 0 3 0 3 29 NO. OF DAYS PRECIPITATION EQUAL 4 6 9 2 0 1 0 1 0 3 0 3 29 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 2 4 0 0 0 0 0 0 0 0 1 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 67 81 77 79 58 71 60 63 64 69 64 69 69 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 63 52 25 28 24 27 22 22 27 23 43 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 60 55 80 42 42 30 31 26 31 31 27 44 42 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 21 14 1 0 0 0 0 0 0 20 17 *** 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 14 6 0 0 0 0 0 0 0 0 0 0 20 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 15 28 26 5 0 0 0 74 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** 27 22 10 2 0 0 0 0 16 28 27 *** DATE OF START AND END FREEZING START = 5 OCT. END = 3 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -0.4 1.4 4.1 ***** ***** ***** ***** ***** 17.5 10.7 6.0 -0.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -6.0 -5.9 -2.9 ***** ***** ***** ***** ***** 5.5 -0.3 -1.0 -7.4 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.3 8.7 11.0 ***** ***** ***** ***** ***** 29.5 21.7 13.1 6.8 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.3 14.6 13.9 ***** ***** ***** ***** ***** 24.0 22.0 14.1 14.2 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.43 2.59 3.21 ***** ***** ***** ***** ***** 4.68 3.58 3.50 2.22 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.20 4.16 4.22 ***** ***** ***** ***** ***** 6.48 5.95 4.99 5.42 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.72 3.89 4.38 ***** ***** ***** ***** ***** 6.82 4.98 3.88 4.96 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 -21.0 -8.8 ***** ***** ***** ***** ***** 1.0 -4.0 -7.5 -15.5 ****** DAY 28 7 13 ** ** ** ** ** 28 24 5 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 13.5 19.0 ***** ***** ***** ***** ***** 36.0 28.0 18.0 13.0 ****** DAY 1 26 31 ** ** ** ** ** 1 1 6 31 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 34.0 18.0 ***** ***** ***** ***** ***** 0.0 0.0 3.0 26.0 ****** DAY 26 21 14 ** ** ** ** ** ** ** 1 4 MONTHLY TOTAL PRECIPITATION IN MM. 48.5 90.0 54.0 ***** ***** ***** ***** ***** 0.0 0.0 3.0 64.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 74.2 ***** 0.0 25.8 NO. OF DAYS WITH PRECIPITATION. 7 7 7 *** *** *** *** *** 0 0 1 6 *** NO. OF DAYS PRECIPITATION EQUAL 7 7 7 *** *** *** *** *** 0 0 1 6 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 4 3 *** *** *** *** *** 0 0 0 3 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 67 71 76 *** *** *** *** *** 62 72 73 70 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 59 49 *** *** *** *** *** 23 33 47 74 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 62 59 *** *** *** *** *** 35 36 41 77 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 19 14 *** *** *** *** *** 0 1 9 23 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 *** *** *** *** *** 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 5 1 0 *** *** *** *** *** 0 0 0 1 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** *** *** *** *** 19 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** *** *** *** *** 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** *** *** *** *** 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 28 23 25 *** *** *** *** *** 0 18 20 30 *** DATE OF START AND END FREEZING START = 10 OCT. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -2.0 -6.7 3.0 12.1 15.2 19.2 21.3 21.2 ***** ***** 4.7 -0.7 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -8.1 -13.6 -4.8 3.0 4.1 6.8 10.0 9.9 ***** ***** -2.2 -6.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.0 0.2 10.7 21.1 26.2 31.6 32.6 32.5 ***** ***** 11.7 4.7 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.1 13.8 15.5 18.1 22.1 24.8 22.6 22.6 ***** ***** 13.9 11.6 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.11 1.43 2.77 4.14 4.61 5.05 5.95 5.84 ***** ***** 3.52 2.64 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.63 3.22 4.24 5.32 7.49 8.42 10.14 7.03 ***** ***** 5.20 4.10 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.19 2.91 3.90 4.88 6.41 6.83 7.17 6.01 ***** ***** 4.97 3.76 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.0 -26.0 -14.0 -2.0 0.5 2.5 6.5 6.0 ***** ***** -9.5 -21.0 ****** DAY 30 11 2 2 3 25 1 21 ** ** 28 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 11.0 17.0 28.0 31.0 35.0 35.0 35.0 ***** ***** 19.0 10.0 ****** DAY 1 28 24 19 29 23 1 3 ** ** 5 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 7.0 27.0 36.0 0.0 0.0 0.0 0.0 0.0 ***** ***** 10.0 24.0 ****** DAY 19 14 25 ** ** ** ** ** ** ** 9 2 MONTHLY TOTAL PRECIPITATION IN MM. 11.5 50.0 51.0 0.0 0.0 0.0 0.0 0.0 ***** ***** 21.0 97.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 48.8 0.0 0.0 51.2 NO. OF DAYS WITH PRECIPITATION. 3 5 3 0 0 0 0 0 *** *** 3 6 *** NO. OF DAYS PRECIPITATION EQUAL 3 5 3 0 0 0 0 0 *** *** 3 6 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 0 0 0 0 0 *** *** 1 4 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 67 72 64 66 61 57 57 *** *** 78 69 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 76 66 51 31 32 26 29 21 *** *** 56 69 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 73 54 36 37 30 28 22 *** *** 62 74 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 25 17 0 0 0 0 0 *** *** 12 16 *** 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 2 14 0 0 0 0 0 0 *** *** 0 5 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 5 27 31 31 *** *** 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. 30 28 26 9 0 0 0 0 *** *** 22 26 *** DATE OF START AND END FREEZING START = 1 NOV. END = 27 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -4.7 -2.9 6.5 11.3 ***** 19.0 22.0 21.0 16.5 13.2 5.8 2.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -12.4 -9.6 -1.5 1.3 ***** 7.6 11.0 9.3 5.0 3.5 -2.4 -2.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.0 4.0 14.5 21.3 ***** 30.5 33.1 32.7 28.0 23.0 13.8 7.4 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.4 13.6 16.0 20.0 ***** 22.9 22.1 23.4 23.0 19.5 16.2 10.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.48 1.89 3.32 4.05 ***** 5.59 6.37 5.33 4.88 5.03 2.99 3.35 ***** MEAN OF MIXING RATIO AT 09 GMT. 3.77 3.74 4.68 3.72 ***** 6.34 6.98 7.16 8.41 12.77 6.09 5.07 ***** MEAN OF MIXING RATIO AT 15 GMT. 2.90 3.25 4.08 3.70 ***** 5.85 6.53 6.83 7.27 10.56 5.14 4.44 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -29.0 -24.0 -5.5 -5.5 ***** 3.0 5.0 5.0 3.0 0.0 -9.0 -13.0 ****** DAY 29 1 12 14 ** 19 31 4 8 8 21 19 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 12.0 20.0 25.0 ***** 35.0 37.0 35.0 31.0 27.0 21.0 13.0 ****** DAY 15 28 30 28 ** 5 8 3 5 5 4 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.0 20.0 26.0 0.0 ***** 8.0 0.0 0.0 2.0 11.0 8.0 35.0 ****** DAY 24 18 25 ** ** 15 ** ** 22 29 14 6 MONTHLY TOTAL PRECIPITATION IN MM. 45.0 24.0 59.0 0.0 ***** 11.0 0.0 0.0 2.0 14.0 18.0 139.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.0 3.5 0.6 54.8 NO. OF DAYS WITH PRECIPITATION. 3 2 4 0 *** 2 0 0 1 2 3 10 *** NO. OF DAYS PRECIPITATION EQUAL 3 2 4 0 *** 2 0 0 1 2 3 10 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 2 0 *** 0 0 0 0 1 0 6 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 62 69 71 73 *** 64 58 54 67 74 69 79 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 75 64 44 21 *** 23 20 22 33 66 57 74 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 66 46 28 *** 27 25 27 37 67 58 74 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 28 20 11 1 *** 0 0 0 0 0 9 13 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 *** 0 0 0 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 7 3 0 0 *** 0 0 0 0 0 0 2 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 *** 21 30 30 14 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. 31 24 23 11 *** 0 0 0 0 5 26 25 *** DATE OF START AND END FREEZING START = 8 OCT. END = 19 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -6.1 ***** 6.4 9.8 14.0 17.3 ***** 20.3 18.5 11.6 4.3 ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -13.4 ***** -2.2 2.7 4.3 6.9 9.9 9.9 6.7 1.1 -2.0 ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.1 ***** 14.9 16.9 23.8 28.8 ***** 30.6 30.2 22.1 10.7 ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.5 ***** 17.1 14.2 19.5 21.9 ***** 20.7 23.5 21.0 12.7 ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.68 ***** 3.05 4.60 4.78 5.53 6.19 5.94 4.82 4.06 3.38 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 2.89 ***** 3.65 4.47 5.05 5.78 6.62 7.19 4.65 5.02 5.75 ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 2.40 ***** 4.04 4.83 4.43 5.19 5.59 6.48 4.51 4.42 5.06 ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -26.0 ***** -9.0 -3.0 0.0 1.0 6.0 5.0 3.0 -3.3 -7.0 ***** ****** DAY 25 ** 11 4 5 4 1 29 20 25 30 ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.0 ***** 20.0 24.0 29.0 31.0 ***** 34.0 33.0 28.0 20.0 ***** ****** DAY 1 ** 12 27 31 13 ** 10 2 2 12 ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 37.0 ***** 22.0 20.0 10.0 0.0 0.0 0.0 0.0 0.0 17.0 ***** ****** DAY 8 ** 28 2 2 ** ** ** ** ** 6 ** MONTHLY TOTAL PRECIPITATION IN MM. 69.0 ***** 29.0 61.0 10.0 0.0 0.0 0.0 0.0 0.0 26.0 ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.3 36.4 0.0 13.3 NO. OF DAYS WITH PRECIPITATION. 5 *** 3 5 1 0 0 0 0 0 2 *** *** NO. OF DAYS PRECIPITATION EQUAL 5 *** 3 5 1 0 0 0 0 0 2 *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 *** 1 4 1 0 0 0 0 0 1 *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 *** 67 73 68 65 59 57 57 72 76 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 *** 32 35 27 21 20 23 15 26 59 *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 *** 46 48 30 24 22 26 19 29 60 *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 26 *** 14 0 0 0 0 0 0 0 13 *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 15 *** 0 0 0 0 *** 0 0 0 0 *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 6 *** 20 19 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. 29 *** 26 9 4 0 0 0 0 8 22 *** *** DATE OF START AND END FREEZING START = 23 OCT. END = 23 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 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. -2.8 -1.5 3.0 9.8 12.4 16.8 21.7 19.5 16.3 11.3 4.7 -0.1 9.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.1 -6.6 -3.3 3.8 4.1 7.0 11.6 8.9 4.8 1.8 -3.5 -4.6 1.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.5 3.6 9.3 16.8 20.8 26.5 31.7 30.1 27.9 20.8 12.9 4.6 17.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.6 10.2 12.6 13.0 16.7 19.5 20.1 21.2 23.1 19.0 16.4 9.2 16.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.20 2.73 3.12 4.99 5.05 5.88 7.08 6.33 5.06 3.91 3.03 2.85 4.35 MEAN OF MIXING RATIO AT 09 GMT. 3.96 4.51 4.04 5.30 6.17 7.42 8.31 7.76 7.08 8.64 3.88 4.72 5.98 MEAN OF MIXING RATIO AT 15 GMT. 3.20 3.79 4.17 5.02 5.09 6.43 8.31 6.33 6.17 5.73 4.02 4.43 5.23 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -20.0 -25.0 -11.0 -4.0 -3.0 3.0 5.0 6.0 0.0 -1.0 -11.0 -12.0 -25.0 DAY 31 1 3 2 9 6 1 12 22 7 24 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.0 12.0 19.0 28.0 31.0 31.0 35.0 33.0 31.0 28.6 27.0 10.4 35.0 DAY 14 26 14 6 14 22 14 2 2 1 11 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 31.0 31.0 14.0 0.0 0.0 0.0 0.0 0.0 0.0 8.0 32.0 32.0 DAY 16 14 26 21 ** ** ** ** ** ** 29 6 MONTHLY TOTAL PRECIPITATION IN MM. 23.0 68.0 68.0 44.0 0.0 0.0 0.0 0.0 0.0 0.0 8.0 91.0 302.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 52.6 14.6 0.0 32.8 NO. OF DAYS WITH PRECIPITATION. 2 4 4 6 0 0 0 0 0 0 1 7 24 NO. OF DAYS PRECIPITATION EQUAL 2 4 4 6 0 0 0 0 0 0 1 7 24 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 3 3 1 0 0 0 0 0 0 0 3 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 68 76 75 76 72 70 62 66 69 65 74 73 71 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 73 73 50 41 34 28 24 23 24 46 37 72 44 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 75 59 46 34 30 34 24 26 39 43 79 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 22 18 14 1 0 0 0 0 0 0 13 17 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 13 5 0 0 0 0 0 0 0 0 0 1 19 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 3 25 21 7 0 0 0 57 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 22 26 3 4 0 0 0 1 10 27 27 150 DATE OF START AND END FREEZING START = 22 SEP. END = 10 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MEAN AND EXTREMES FOR THE PERIOD 1976 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. -4.0 -2.6 2.9 9.3 13.9 18.4 21.4 20.4 16.3 10.9 5.3 -0.6 9.3 SD OF MEAN DAILY TEMPERATURE IN C. 2.79 2.42 2.28 1.29 1.25 1.24 0.96 1.24 0.98 1.07 1.13 2.91 1.63 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.7 -9.4 -4.0 1.6 4.9 7.8 10.7 9.3 4.9 0.7 -2.8 -7.3 0.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.6 4.3 9.7 17.1 22.8 29.0 32.1 31.5 27.9 21.2 13.4 6.2 18.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.5 13.7 13.7 15.6 17.9 21.2 21.4 22.2 23.0 20.4 16.2 13.3 17.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.03 2.26 3.10 4.34 4.84 5.40 6.06 5.87 4.50 3.86 3.30 2.58 4.00 MEAN OF MIXING RATIO AT 09 GMT. 3.22 3.47 4.09 4.98 6.19 7.25 8.27 8.13 6.54 6.05 4.76 3.83 5.56 MEAN OF MIXING RATIO AT 15 GMT. 2.89 3.22 4.02 4.95 5.90 6.64 7.34 7.42 6.15 5.45 4.44 3.57 5.16 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -33.0 -28.0 -19.0 -8.0 -5.5 -1.0 1.0 2.0 -3.5 -9.5 -18.5 -27.0 -33.0 YEAR - DAY 83-28 92-13 92-11 92- 2 84- 2 78- 3 96-26 83-29 84-30 85-31 95-29 91-27 83-28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 17.0 20.0 28.0 45.0 35.0 37.0 36.5 36.0 30.0 27.0 20.0 45.0 YEAR - DAY 99- 1 96-11 77-18 0-19 87-21 89-27 91- 9 82- 3 99- 1 96- 2 3-11 98-13 87-21 24 HOUR MAXIMUM PRECIPITATION IN MM. 53.0 60.0 53.0 53.0 30.0 8.0 10.2 3.0 2.0 28.0 50.0 57.0 60.0 YEAR - DAY 93- 8 80-11 98-30 93-27 86- 4 1-15 87-28 98- 7 1-22 77-26 86-30 85-19 80-11 MONTHLY TOTAL PRECIPITATION IN MM. 49.7 56.6 69.7 35.2 16.7 1.0 1.5 0.2 0.1 12.3 41.4 66.4 350.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.2 15.1 0.4 34.3 NO. OF DAYS WITH PRECIPITATION. 4 4 5 4 2 0 0 0 0 2 3 5 29 NO. OF DAYS PRECIPITATION EQUAL 4 4 5 4 2 0 0 0 0 2 3 5 29 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 3 1 1 0 0 0 0 1 1 2 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 74 76 74 71 63 59 54 58 60 68 74 76 67 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 59 50 37 32 26 25 25 25 35 45 58 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 66 65 59 46 39 30 28 29 30 39 51 64 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 23 16 2 0 0 0 0 0 1 14 22 103 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 10 5 1 0 0 0 0 0 0 0 0 4 20 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 13 28 25 7 0 0 0 73 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 27 26 10 1 0 0 0 1 14 23 29 160 DATE OF START AND END FREEZING START = 13 SEP. END = 15 JUNE IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SINGERD LATITUDE 32 47 N DATA PROCESSING CENTER LONGITUDE 50 26 E ELEVATION 2100 MET. MEAN AND EXTREMES FOR THE PERIOD 1976 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. -3.9 -2.0 3.3 10.1 14.8 19.8 22.8 21.9 18.1 12.3 6.2 0.0 10.3 AVERAGE DEW POINT TEMPERATURE. IN C. -9.4 -7.7 -4.3 -0.8 1.6 3.4 5.1 4.9 1.8 -0.2 -2.8 -6.2 -1.2 AVERAGE OF MIXING RATIO IN G/KG 2.71 2.97 3.73 4.75 5.64 6.43 7.22 7.14 5.74 5.12 4.16 3.31 4.91 AVERAGE OF VAPOUR PRESSURE HPA 3.39 3.73 4.69 5.99 7.13 8.15 9.15 9.05 7.28 6.46 5.24 4.16 6.20 AVERAGE OF SATURATION DEFICIT IN HPA 1.82 2.08 3.76 7.33 11.19 17.36 21.38 20.20 16.32 9.60 5.20 2.60 9.90 AVERAGE RELATIVE HUMIDITY IN PERCENT 67 67 61 51 45 38 36 37 38 47 57 66 51 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 78 78 76 72 64 59 54 58 61 69 75 79 69 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 57 56 48 36 31 25 23 24 24 32 43 55 38 NO. OF DAYS PRECIPITATION EQUAL 3 3 4 3 2 0 0 0 0 1 2 4 22 OR MORE THAN 5 MM.