IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1988 ****** ****** ****** 12.2 17.3 21.6 27.6 27.4 22.2 16.8 8.5 4.6 ****** 1989 -6.0 -5.1 7.2 15.4 19.0 24.4 29.6 28.0 22.0 17.9 9.6 4.6 35.6 1990 -1.0 2.4 8.3 11.5 18.3 23.7 29.4 27.0 22.6 16.6 11.4 5.2 30.4 1991 2.8 2.6 8.3 13.9 17.1 24.4 28.7 28.0 23.4 16.2 10.6 2.6 26.1 1992 -3.5 -1.0 2.6 11.2 15.8 21.3 26.9 27.0 21.7 16.4 9.1 3.2 30.5 1993 1.2 3.5 6.3 11.6 15.6 22.1 28.3 27.3 22.7 17.2 7.9 5.7 27.1 1994 4.5 3.3 7.7 14.3 17.8 24.2 29.2 27.5 24.3 17.3 9.6 1.4 27.8 1995 4.4 6.0 8.0 11.8 18.3 23.3 27.4 27.8 22.1 16.5 8.8 2.8 25.0 1996 1.6 6.1 6.1 11.9 18.9 23.9 29.6 28.1 22.7 16.7 10.5 7.3 28.0 1997 3.9 0.7 4.8 11.2 17.8 23.6 28.1 27.4 21.3 16.8 9.9 4.3 27.4 1998 -1.8 1.3 6.7 13.2 17.8 25.7 28.9 29.5 23.2 17.6 12.2 9.7 31.3 1999 4.6 5.7 8.6 13.0 19.9 24.7 28.4 30.2 22.7 18.4 9.7 5.7 25.6 2000 1.3 3.1 7.4 14.8 18.8 24.7 31.5 29.2 22.6 15.4 9.3 4.8 30.2 MEAN 1.0 2.4 6.8 12.8 17.9 23.6 28.8 28.0 22.6 16.9 9.8 4.8 27.8 SD 3.44 3.19 1.74 1.43 1.22 1.29 1.19 1.01 0.78 0.77 1.19 2.14 1.62 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 ****** ****** ****** 6.2 8.8 12.5 19.9 20.1 12.9 9.7 2.6 -0.3 ****** 1989 -10.9 -9.7 2.8 8.7 12.3 16.2 21.6 20.2 13.5 10.5 4.4 -0.3 7.5 1990 -4.6 -1.8 2.1 4.9 10.5 15.0 22.6 18.4 12.8 9.8 4.0 -0.3 7.8 1991 -1.1 -2.3 3.4 7.4 9.9 16.2 21.0 19.6 15.0 9.9 4.0 -0.9 8.5 1992 -7.2 -4.2 -1.8 5.2 9.8 13.4 17.9 19.9 13.3 7.9 3.4 -0.5 6.4 1993 -3.2 -2.1 0.0 4.9 9.0 12.9 20.4 19.3 12.9 10.5 2.2 0.2 7.3 1994 -0.0 -1.5 1.9 7.7 10.4 16.2 21.5 18.4 17.8 11.9 4.9 -2.9 8.9 1995 -1.5 0.8 1.4 5.7 12.0 15.8 18.5 18.3 13.3 8.9 1.3 -3.1 7.6 1996 -2.0 1.3 1.4 6.2 11.1 15.9 22.9 19.9 13.7 9.1 4.4 2.5 8.9 1997 -1.4 -5.0 -0.1 5.0 9.9 14.5 20.0 18.0 12.4 9.7 5.7 0.1 7.4 1998 -5.6 -2.3 1.5 6.5 9.9 16.8 21.0 21.7 14.2 9.3 4.9 3.5 8.4 1999 -0.0 -0.2 2.2 5.4 11.0 15.7 20.6 22.7 13.3 10.7 4.0 0.1 8.8 2000 -3.3 -3.2 -0.2 7.4 9.9 15.5 24.8 21.4 13.8 8.5 3.9 0.6 8.2 MEAN -3.4 -2.5 1.2 6.3 10.4 15.1 21.0 19.8 13.8 9.7 3.8 -0.1 7.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 ****** ****** ****** 18.1 25.6 30.7 35.4 34.6 31.4 23.9 14.4 9.5 ****** 1989 -1.2 -0.4 11.5 22.0 25.7 32.5 37.6 35.9 30.4 25.2 14.8 9.4 20.3 1990 2.5 6.6 14.5 18.0 26.2 32.4 36.2 35.7 32.5 23.3 18.6 10.7 21.4 1991 6.6 7.4 13.2 20.5 24.2 32.5 36.4 36.4 31.7 22.6 17.2 6.0 21.2 1992 0.2 2.1 6.9 17.1 21.9 29.3 36.0 34.2 30.0 24.8 14.9 7.0 18.7 1993 5.5 9.2 12.7 18.4 22.2 31.2 36.2 35.4 32.6 23.9 13.5 11.2 21.0 1994 9.1 8.1 13.6 20.9 25.2 32.2 37.0 36.6 30.8 22.6 14.2 5.8 21.3 1995 10.3 11.1 14.5 17.9 24.6 30.8 36.3 37.3 31.0 24.1 16.3 8.8 21.9 1996 5.2 11.0 10.8 17.6 26.6 31.9 36.3 36.2 31.6 24.3 16.6 12.0 21.7 1997 9.2 6.4 9.8 17.4 25.6 32.7 36.3 36.7 30.1 23.9 14.1 8.5 20.9 1998 1.9 4.9 11.9 20.0 25.6 34.5 36.8 37.3 32.1 25.9 19.6 16.0 22.2 1999 9.2 11.7 15.0 20.5 28.8 33.8 36.2 37.7 32.0 26.1 15.5 11.3 23.1 2000 6.0 9.5 15.0 22.1 27.7 33.9 38.3 37.0 31.5 22.3 14.7 9.1 22.2 MEAN 5.4 7.3 12.4 19.3 25.4 32.2 36.5 36.2 31.4 24.1 15.7 9.6 21.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 ****** ****** ****** 11.9 16.8 18.2 15.5 14.5 18.5 14.2 11.8 9.8 ****** 1989 9.7 9.3 8.7 13.3 13.4 16.3 16.0 15.7 16.9 14.7 10.4 9.7 12.8 1990 7.1 8.4 12.4 13.1 15.7 17.4 13.6 17.3 19.7 13.5 14.6 11.0 13.6 1991 7.7 9.7 9.8 13.1 14.3 16.3 15.4 16.8 16.7 12.7 13.2 6.9 12.7 1992 7.4 6.3 8.7 11.9 12.1 15.9 18.1 14.3 16.7 16.9 11.5 7.5 12.3 1993 8.7 11.3 12.7 13.5 13.2 18.3 15.8 16.1 19.7 13.4 11.3 11.0 13.7 1994 9.1 9.6 11.7 13.2 14.8 16.0 15.5 18.2 13.0 10.7 9.3 8.7 12.5 1995 11.8 10.3 13.1 12.2 12.6 15.0 17.8 19.0 17.7 15.2 15.0 11.9 14.3 1996 7.2 9.7 9.4 11.4 15.5 16.0 13.4 16.3 17.9 15.2 12.2 9.5 12.8 1997 10.6 11.4 9.9 12.4 15.7 18.2 16.3 18.7 17.7 14.2 8.4 8.4 13.5 1998 7.5 7.2 10.4 13.5 15.7 17.7 15.8 15.6 17.9 16.6 14.7 12.5 13.8 1999 9.2 11.9 12.8 15.1 17.8 18.1 15.6 15.0 18.7 15.4 11.5 11.2 14.4 2000 9.3 12.7 15.2 14.7 17.8 18.4 13.5 15.6 17.7 13.8 10.8 8.5 14.0 MEAN 8.8 9.8 11.2 13.0 15.0 17.1 15.6 16.4 17.6 14.3 11.9 9.7 13.4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 ****** ****** ****** 6.01 5.42 5.27 6.48 6.48 4.05 5.69 4.68 3.76 ****** 1989 2.04 2.14 4.95 5.72 5.79 5.02 6.02 6.02 4.82 4.64 5.62 4.20 4.75 1990 3.21 3.64 3.72 5.17 5.32 5.23 5.49 4.40 3.18 4.40 4.18 3.19 4.26 1991 3.66 3.21 4.64 5.68 4.92 5.36 5.71 5.69 3.71 6.56 4.19 4.21 4.79 1992 2.67 3.14 3.51 4.88 6.74 6.48 6.29 5.96 3.55 3.30 4.59 4.20 4.61 1993 3.18 3.46 3.84 5.73 7.50 5.72 4.92 5.43 3.66 4.22 5.38 4.72 4.82 1994 4.35 3.83 4.83 6.10 6.14 4.91 6.80 4.81 4.79 6.22 6.15 3.55 5.21 1995 3.90 4.05 4.59 6.02 7.23 7.18 6.31 5.50 4.98 3.34 4.10 3.28 5.04 1996 3.59 4.43 4.57 5.65 6.55 5.23 5.36 4.30 4.46 4.26 4.09 4.53 4.75 1997 3.67 2.89 4.15 5.27 6.15 5.53 5.32 5.29 4.15 5.59 5.75 4.50 4.85 1998 3.29 3.55 4.66 5.97 6.96 5.53 6.27 6.17 4.84 3.92 4.49 3.62 4.94 1999 4.10 3.89 3.87 5.18 4.99 4.98 5.97 5.48 4.47 4.67 4.48 3.82 4.66 2000 3.24 3.16 3.59 5.46 5.36 4.14 4.63 5.12 4.10 5.02 4.47 4.51 4.40 MEAN 3.41 3.45 4.25 5.61 6.09 5.43 5.82 5.44 4.22 4.76 4.79 4.01 4.77 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 ****** ****** ****** 6.73 5.52 5.40 6.77 6.75 4.38 5.89 4.80 4.15 ****** 1989 2.49 2.62 5.29 5.71 6.77 6.35 8.03 6.09 5.09 5.58 6.16 4.54 5.39 1990 3.54 4.03 4.41 4.80 4.50 5.16 5.52 4.33 3.98 4.70 4.42 3.52 4.41 1991 4.00 3.38 5.02 5.45 5.13 5.48 6.22 6.22 3.75 6.67 4.50 4.49 5.03 1992 2.94 3.59 4.01 4.89 6.73 5.99 5.59 6.20 3.39 3.77 4.82 4.24 4.68 1993 3.37 3.41 3.88 6.09 7.61 4.92 5.33 4.86 3.76 4.57 6.20 5.53 4.96 1994 4.74 3.82 4.92 7.01 6.26 4.29 6.57 4.50 4.59 6.82 6.57 3.84 5.33 1995 4.72 4.17 4.80 6.77 7.64 6.90 6.62 5.25 5.46 3.72 4.02 3.64 5.31 1996 3.76 4.69 4.83 5.62 6.68 5.78 5.55 4.46 4.39 4.38 4.52 5.11 4.98 1997 3.91 3.16 4.11 5.88 6.16 5.40 5.58 5.33 4.16 5.87 6.25 5.13 5.08 1998 3.62 3.97 5.04 6.43 7.27 5.74 6.08 6.73 5.04 4.56 5.17 4.01 5.31 1999 4.53 4.19 3.85 4.91 4.85 4.24 6.14 5.80 4.63 4.98 4.61 4.21 4.74 2000 3.58 3.30 3.46 5.49 4.60 3.73 4.93 5.05 4.27 5.02 4.86 4.86 4.43 MEAN 3.77 3.70 4.47 5.83 6.14 5.34 6.08 5.51 4.38 5.12 5.15 4.41 4.99 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 ****** ****** ****** 6.25 5.39 5.10 6.35 6.29 3.58 5.60 4.82 4.12 ****** 1989 2.56 2.64 5.31 5.49 6.57 5.03 6.98 5.66 4.73 5.30 6.04 4.55 5.07 1990 3.57 3.96 3.92 5.16 4.66 4.02 5.06 3.90 3.65 4.21 3.94 3.25 4.11 1991 3.90 3.29 4.64 5.00 4.84 4.90 5.66 6.51 3.17 6.22 4.15 4.34 4.72 1992 2.93 3.51 3.84 5.01 7.11 6.23 5.32 5.87 3.64 3.41 4.80 4.31 4.67 1993 3.54 3.30 3.69 5.81 8.01 5.21 4.74 4.17 3.26 4.49 5.57 5.37 4.76 1994 4.70 4.07 5.02 6.93 6.15 3.95 6.23 3.85 4.48 6.46 6.45 3.87 5.18 1995 4.59 4.52 4.86 6.87 7.62 6.55 6.57 5.05 5.01 3.46 3.89 3.56 5.21 1996 3.70 4.71 4.79 5.79 6.22 4.29 4.91 4.10 3.89 3.86 4.29 5.05 4.63 1997 3.62 3.23 4.10 5.68 5.78 5.09 4.55 4.68 3.81 5.48 5.96 5.04 4.75 1998 3.71 4.10 5.01 6.22 7.12 5.45 5.60 5.70 4.48 4.24 4.70 3.70 5.00 1999 4.38 4.16 3.78 5.49 4.51 3.94 5.09 4.43 4.11 4.44 4.32 4.07 4.39 2000 3.57 3.36 3.34 5.25 4.48 3.22 4.15 4.15 3.29 5.08 4.60 4.71 4.10 MEAN 3.74 3.74 4.36 5.77 6.04 4.85 5.48 4.96 3.94 4.79 4.89 4.31 4.73 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 1988 ***** ** ***** ** ***** ** -1.0 1 2.0 8 9.0 3 13.0 1 9.0 31 8.0 6 5.0 21 -9.2 21 -12.8 30 ***** 1989 -22.5 18 -22.5 17 -8.6 30 2.4 2 6.4 2 11.0 3 15.0 17 16.6 31 8.4 28 5.0 22 -0.4 22 -3.2 22 -22.5 1990 -18.0 26 -13.8 1 -2.4 3 -0.2 8 4.0 7 10.4 6 18.0 4 14.0 10 8.0 19 4.5 30 -2.4 14 -8.0 28 -18.0 1991 -8.0 28 -10.0 5 -4.8 10 1.8 13 6.0 18 9.2 1 14.4 8 15.0 30 10.2 21 3.4 30 -2.8 27 -8.6 27 -10.0 1992 -16.4 4 -12.0 29 -10.5 1 0.5 3 5.2 7 8.4 3 14.2 12 16.2 23 4.4 30 2.2 28 -7.6 27 -11.0 29 -16.4 1993 -12.8 18 -9.0 16 -6.6 15 0.6 13 2.8 1 6.0 6 9.8 7 14.0 22 4.4 25 5.0 31 -9.0 14 -3.4 5 -12.8 1994 -5.4 11 -8.5 4 -2.4 17 1.5 18 3.0 2 9.5 18 16.6 5 14.0 25 12.0 29 7.2 13 -1.0 9 -11.0 8 -11.0 1995 -7.6 23 -3.6 10 -3.2 1 1.0 6 1.8 9 8.8 6 12.8 3 14.2 22 8.4 30 2.6 6 -11.8 26 -7.4 21 -11.8 1996 -8.8 23 -4.6 6 -3.6 5 2.8 26 7.4 2 6.4 7 16.2 7 13.8 25 10.6 21 0.4 31 -0.8 11 -2.2 18 -8.8 1997 -8.0 30 -15.0 6 -13.0 8 -5.0 12 2.0 6 7.0 3 14.6 7 13.8 31 8.2 14 4.2 25 -1.0 29 -5.2 27 -15.0 1998 -18.4 17 -12.0 18 -3.0 3 1.2 25 4.6 1 10.0 2 12.6 7 15.4 23 9.2 27 4.6 25 1.4 14 -2.6 5 -18.4 1999 -5.2 5 -6.4 22 -5.4 18 1.0 3 4.8 2 10.4 5 12.2 16 13.4 31 9.8 25 4.8 30 -4.0 29 -6.0 6 -6.4 2000 -11.4 30 -9.0 10 -6.0 9 2.4 11 4.2 3 10.6 6 19.0 3 11.0 31 9.8 27 0.2 29 -1.6 23 -4.4 31 -11.4 LOW. -22.5 18 -22.5 17 -13.0 8 -5.0 12 1.8 9 6.0 6 9.8 7 9.0 31 4.4 30 0.2 29 -11.8 26 -12.8 30 -22.5 YEAR 1989 1989 1997 1997 1995 1993 1993 1988 1992 2000 1995 1988 1989 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 1988 ***** ** ***** ** ***** ** 23.5 17 32.0 31 36.0 13 39.5 23 38.6 11 35.0 15 29.4 3 22.0 7 17.0 6 ***** 1989 6.0 11 6.4 28 17.2 25 26.1 16 31.4 24 37.5 30 40.6 20 38.7 7 36.8 3 31.2 6 19.8 5 14.0 25 40.6 1990 7.8 5 13.4 18 18.6 10 26.2 27 33.5 24 36.4 24 40.0 16 40.8 14 34.2 9 28.4 7 23.8 5 20.0 4 40.8 1991 10.8 12 15.6 24 22.6 29 27.0 25 28.8 9 37.5 30 40.4 31 40.0 1 37.2 1 27.6 13 23.0 2 14.8 9 40.4 1992 5.2 20 7.2 23 15.8 29 23.8 12 31.2 29 34.8 29 38.5 29 38.0 5 33.6 9 28.5 4 22.4 5 13.2 1 38.5 1993 11.0 29 17.6 28 22.0 31 26.5 19 27.6 30 36.8 30 39.8 16 37.8 16 36.0 1 29.8 1 19.6 8 15.2 22 39.8 1994 14.6 1 12.4 11 20.8 31 27.4 22 33.5 31 36.0 10 39.3 15 40.0 6 35.0 1 27.4 1 19.0 3 11.0 2 40.0 1995 16.6 30 15.4 21 19.2 31 23.2 30 30.6 24 34.6 21 40.6 20 39.6 1 37.0 1 29.6 2 23.0 1 13.4 29 40.6 1996 12.6 2 19.2 9 19.2 30 24.6 30 31.5 27 35.6 30 38.2 20 39.0 2 35.0 2 31.2 3 21.8 5 18.0 5 39.0 1997 14.4 7 15.4 21 17.2 31 28.2 25 32.0 28 36.6 28 40.0 30 38.8 25 33.6 1 28.8 17 18.2 3 14.6 8 40.0 1998 8.4 25 11.4 24 18.5 24 26.4 16 32.4 28 38.0 27 41.0 13 40.2 29 37.8 1 31.0 6 23.6 9 21.0 17 41.0 1999 13.2 31 16.8 26 22.0 31 27.0 30 36.6 30 37.6 1 40.6 21 39.6 27 36.5 3 32.0 2 20.6 7 17.4 31 40.6 2000 17.6 1 17.0 25 20.6 22 26.6 28 33.0 25 40.0 30 41.0 17 39.0 2 36.8 9 26.2 7 20.0 2 13.0 1 41.0 HIG. 17.6 1 19.2 9 22.6 29 28.2 25 36.6 30 40.0 30 41.0 13 40.8 14 37.8 1 32.0 2 23.8 5 21.0 17 41.0 YEAR 2000 1996 1991 1997 1999 2000 1998 1990 1998 1999 1990 1998 1998 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 1988 ***** ** ***** ** 6.0 21 32.0 20 0.3 2 0.2 17 0.0 ** 0.0 ** 1.0 2 10.0 15 11.0 20 33.0 17 ***** 1989 12.0 12 12.4 11 41.0 11 19.0 25 8.0 7 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.8 30 27.0 30 73.0 1 73.0 1990 25.0 4 39.0 10 47.0 11 26.0 29 5.8 13 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.0 26 1.0 11 30.0 25 47.0 1991 25.0 14 34.0 27 26.0 15 16.0 4 0.6 23 0.0 ** 0.0 ** 0.0 ** 0.0 ** 11.0 2 6.0 4 46.0 12 46.0 1992 29.0 21 24.0 23 37.0 15 11.0 14 30.0 9 4.0 3 0.0 ** 0.0 ** 0.0 ** 0.0 ** 20.0 8 27.6 2 37.0 1993 36.0 7 18.0 20 27.0 18 15.4 26 40.0 13 4.0 1 0.0 ** 0.0 ** 0.0 ** 23.0 31 25.0 25 23.0 8 40.0 1994 48.0 16 33.0 28 37.0 14 20.3 26 2.0 3 0.0 ** 0.0 ** 0.0 ** 0.4 9 36.0 19 62.0 23 24.0 30 62.0 1995 21.0 16 19.5 5 19.0 12 39.5 4 19.0 29 6.0 16 0.0 ** 0.0 ** 0.0 ** 0.0 ** 17.0 3 5.0 14 39.5 1996 25.3 5 21.0 21 29.0 2 67.3 13 7.6 20 0.0 ** 4.0 18 0.0 ** 0.0 ** 2.0 14 0.6 22 30.0 10 67.3 1997 29.0 16 14.0 19 22.0 17 32.0 5 3.3 19 1.0 6 0.4 5 0.0 ** 0.0 ** 14.0 22 34.0 3 34.0 9 34.0 1998 34.0 5 16.2 15 71.0 17 28.5 28 19.0 12 8.0 13 1.3 29 0.0 ** 0.6 12 0.0 ** 33.1 11 0.2 31 71.0 1999 32.0 9 39.0 20 26.0 20 15.9 1 8.0 7 0.0 ** 5.4 15 0.2 19 0.0 ** 13.6 31 6.0 1 8.2 10 39.0 2000 33.0 6 12.0 13 53.9 24 14.0 21 2.3 6 0.0 ** 0.4 13 0.0 ** 4.4 29 8.4 26 15.8 30 24.0 24 53.9 HIG. 48.0 16 39.0 10 71.0 17 67.3 13 40.0 13 8.0 13 5.4 15 0.2 19 4.4 29 36.0 19 62.0 23 73.0 1 73.0 YEAR 1994 1990 1998 1996 1993 1998 1999 1999 2000 1994 1994 1989 1989 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1988 ****** ****** 8.0 89.7 0.5 0.2 0.0 0.0 1.0 27.3 32.3 104.1 ****** 3.0 34.4 0.4 62.2 1989 43.4 48.1 170.8 22.0 11.0 0.0 0.0 0.0 0.0 8.8 107.4 151.7 563.2 46.6 5.9 0.0 47.6 1990 96.4 87.3 73.6 52.6 9.0 0.0 0.0 0.0 0.0 23.8 3.3 40.6 386.6 66.6 15.9 0.0 17.5 1991 65.9 115.7 106.6 47.9 0.7 0.0 0.0 0.0 0.0 40.0 9.0 171.0 556.8 51.8 8.7 0.0 39.5 1992 91.3 99.5 135.5 35.6 83.8 9.3 0.0 0.0 0.0 0.0 41.9 112.5 609.4 53.5 21.1 0.0 25.3 1993 80.3 50.8 67.9 104.2 69.1 4.0 0.0 0.0 0.0 57.7 107.6 70.3 611.9 32.5 29.0 0.0 38.5 1994 127.6 68.3 98.1 59.3 4.4 0.0 0.0 0.0 0.4 102.2 258.8 69.5 788.6 37.3 8.1 0.1 54.6 1995 40.5 59.9 72.2 105.3 80.4 15.0 0.0 0.0 0.0 0.0 33.7 7.8 414.8 41.6 48.4 0.0 10.0 1996 121.8 90.3 161.5 130.5 28.5 0.0 4.0 0.0 0.0 4.3 1.9 87.0 629.8 59.3 25.2 0.6 14.8 1997 67.3 36.4 103.9 79.9 13.6 1.0 0.4 0.0 0.0 32.2 145.2 122.9 602.8 34.4 15.7 0.1 49.8 1998 144.4 72.5 178.4 47.2 29.0 10.2 1.3 0.0 0.6 0.0 51.1 0.2 534.9 73.9 16.2 0.4 9.6 1999 75.4 101.0 48.8 42.4 9.7 0.0 5.5 0.2 0.0 26.3 15.0 32.2 356.5 63.2 14.6 1.6 20.6 2000 120.1 28.7 67.0 36.9 3.9 0.0 0.4 0.0 5.3 21.2 27.3 88.6 399.4 54.0 10.2 1.4 34.3 MEAN 89.5 71.5 99.4 65.7 26.4 3.1 0.9 0.0 0.6 26.4 64.2 81.4 529.1 49.3 18.0 0.2 32.5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 *** *** 2 13 2 1 0 0 1 7 15 10 *** 1989 12 9 19 3 3 0 0 0 0 2 13 9 70 1990 16 10 10 6 3 0 0 0 0 5 4 7 61 1991 12 10 14 8 2 0 0 0 0 8 3 13 70 1992 12 19 16 7 10 4 0 0 0 0 10 16 94 1993 10 8 11 11 12 1 0 0 0 5 10 7 75 1994 15 16 16 11 3 0 0 0 1 10 16 12 100 1995 5 11 10 18 11 5 0 0 0 0 6 5 71 1996 16 13 19 13 7 0 1 0 0 5 4 11 89 1997 8 8 17 13 11 1 1 0 0 7 14 13 93 1998 18 17 14 9 8 3 1 0 1 0 3 1 75 1999 13 8 8 7 3 0 2 1 0 3 7 7 59 2000 12 8 6 7 3 0 1 0 2 7 6 17 69 MEAN 12 11 12 10 6 1 0 0 0 5 9 10 76 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 1988 *** *** 2 8 0 0 0 0 1 5 8 9 *** 1989 9 7 16 3 3 0 0 0 0 2 10 7 57 1990 14 8 9 5 2 0 0 0 0 5 3 2 48 1991 9 10 12 4 0 0 0 0 0 8 3 13 59 1992 12 18 14 4 10 4 0 0 0 0 5 12 79 1993 8 6 9 11 8 1 0 0 0 4 10 6 63 1994 13 11 12 10 2 0 0 0 0 6 12 10 76 1995 4 9 7 13 10 5 0 0 0 0 6 3 57 1996 12 12 16 11 5 0 1 0 0 2 0 9 68 1997 6 5 11 7 5 1 0 0 0 4 10 11 60 1998 16 14 11 5 4 2 1 0 0 0 2 0 55 1999 8 7 5 7 2 0 1 0 0 2 6 6 44 2000 11 5 5 5 2 0 0 0 1 5 3 12 49 MEAN 10 9 10 7 4 1 0 0 0 3 6 8 58 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 1988 *** *** 0 3 0 0 0 0 0 2 1 4 *** 1989 1 3 6 1 0 0 0 0 0 0 4 3 18 1990 3 2 1 2 0 0 0 0 0 0 0 1 9 1991 2 4 5 2 0 0 0 0 0 1 0 6 20 1992 4 3 4 1 3 0 0 0 0 0 1 3 19 1993 2 2 2 5 1 0 0 0 0 3 5 3 23 1994 6 1 3 2 0 0 0 0 0 3 8 2 25 1995 1 2 3 2 4 0 0 0 0 0 1 0 13 1996 5 3 6 4 0 0 0 0 0 0 0 2 20 1997 3 2 6 3 0 0 0 0 0 1 7 4 26 1998 7 3 4 1 1 0 0 0 0 0 2 0 18 1999 3 3 2 1 0 0 0 0 0 2 0 0 11 2000 5 1 1 1 0 0 0 0 0 0 1 3 12 MEAN 4 2 3 2 1 0 0 0 0 1 2 2 17 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 *** *** *** 74 58 42 33 35 34 58 74 78 *** 1989 80 81 82 66 54 37 30 33 40 47 83 86 60 1990 87 83 67 77 54 37 26 26 27 47 60 66 55 1991 80 73 73 71 51 38 30 32 28 69 62 87 58 1992 84 84 79 71 70 54 38 32 29 38 72 86 61 1993 78 77 75 82 80 49 27 29 30 42 85 90 62 1994 81 81 83 71 63 33 34 29 30 60 85 85 61 1995 86 76 83 81 65 52 37 33 40 35 68 81 61 1996 80 81 84 75 61 36 24 25 36 48 61 77 57 1997 78 78 84 76 62 41 28 33 36 59 79 90 62 1998 91 83 83 77 69 35 31 29 37 42 63 57 58 1999 81 79 69 71 50 35 32 26 37 47 68 78 56 2000 80 79 71 63 54 29 19 25 32 56 70 88 56 MEAN 82 80 78 73 61 40 30 30 34 50 72 81 59 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 *** *** *** 50 27 20 19 20 16 34 47 60 *** 1989 75 72 64 35 33 21 19 17 20 29 58 62 42 1990 78 70 45 39 22 16 15 12 13 29 34 45 35 1991 65 54 55 38 27 18 17 17 13 40 38 74 38 1992 73 77 65 42 42 25 15 19 13 20 47 64 42 1993 60 49 45 51 48 18 14 14 12 29 64 70 40 1994 67 59 53 46 33 15 18 12 18 44 65 67 41 1995 67 54 49 54 42 27 18 14 21 21 36 55 38 1996 69 62 63 47 33 19 15 12 16 25 40 62 39 1997 56 56 59 47 32 18 15 14 16 33 61 74 40 1998 82 75 60 45 36 17 16 17 17 23 42 38 39 1999 65 55 39 34 21 14 18 15 17 26 43 56 34 2000 65 49 35 34 20 12 12 13 16 33 47 68 34 MEAN 69 61 53 43 32 18 16 15 16 30 48 61 39 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 *** *** *** 48 27 19 17 18 14 36 52 61 *** 1989 76 70 63 35 32 17 17 15 19 31 61 64 42 1990 78 69 43 42 24 13 13 11 13 28 32 44 34 1991 67 53 52 35 26 16 15 18 12 42 39 74 37 1992 74 78 62 44 46 26 15 18 15 20 51 71 43 1993 67 50 45 51 50 20 13 12 12 31 62 69 40 1994 67 66 57 48 33 14 16 11 17 44 68 72 43 1995 65 60 51 58 43 25 18 13 20 21 39 55 39 1996 67 62 63 49 31 14 13 11 15 24 40 63 38 1997 54 56 58 48 31 17 12 13 16 37 61 74 40 1998 84 76 61 47 38 17 15 15 17 23 38 37 39 1999 64 55 38 41 20 13 15 11 16 26 44 54 33 2000 67 51 37 33 21 10 10 11 13 34 48 68 34 MEAN 69 62 53 45 32 17 15 14 15 31 49 62 39 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 1988 *** *** *** 0 0 0 0 0 0 0 4 4 *** 1989 27 24 2 0 0 0 0 0 0 0 0 0 53 1990 14 5 0 0 0 0 0 0 0 0 0 8 27 1991 6 11 1 0 0 0 0 0 0 0 0 9 27 1992 20 12 11 0 0 0 0 0 0 0 3 5 51 1993 11 10 2 0 0 0 0 0 0 0 4 0 27 1994 3 6 0 0 0 0 0 0 0 0 0 14 23 1995 7 0 0 0 0 0 0 0 0 0 6 13 26 1996 11 1 0 0 0 0 0 0 0 0 0 0 12 1997 6 15 5 2 0 0 0 0 0 0 0 2 30 1998 18 7 0 0 0 0 0 0 0 0 0 0 25 1999 3 3 2 0 0 0 0 0 0 0 1 3 12 2000 15 14 12 0 0 0 0 0 0 0 0 1 42 MEAN 12 9 3 0 0 0 0 0 0 0 1 5 30 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 1988 *** *** *** 0 0 0 15 13 1 0 0 0 *** 1989 0 0 0 0 0 4 14 10 0 0 0 0 28 1990 0 0 0 0 1 4 22 6 0 0 0 0 33 1991 0 0 0 0 0 4 13 9 2 0 0 0 28 1992 0 0 0 0 0 1 4 9 3 0 0 0 17 1993 0 0 0 0 0 1 13 10 1 0 0 0 25 1994 0 0 0 0 2 3 15 5 5 0 0 0 30 1995 0 0 0 0 0 6 6 4 1 0 0 0 17 1996 0 0 0 0 0 4 21 11 0 0 0 0 36 1997 0 0 0 0 0 3 11 6 0 0 0 0 20 1998 0 0 0 0 0 7 15 21 2 0 0 0 45 1999 0 0 0 0 0 3 13 22 0 0 0 0 38 2000 0 0 0 0 0 1 26 16 0 0 0 0 43 MEAN 0 0 0 0 0 3 14 11 1 0 0 0 29 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 1988 *** *** *** 0 0 0 0 0 0 0 0 3 *** 1989 20 17 0 0 0 0 0 0 0 0 0 0 37 1990 6 1 0 0 0 0 0 0 0 0 0 3 10 1991 0 0 0 0 0 0 0 0 0 0 0 2 2 1992 14 6 2 0 0 0 0 0 0 0 0 2 24 1993 2 0 0 0 0 0 0 0 0 0 0 0 2 1994 0 0 0 0 0 0 0 0 0 0 0 3 3 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 3 0 0 0 0 0 0 0 0 0 0 0 3 1997 0 4 1 0 0 0 0 0 0 0 0 0 5 1998 8 0 0 0 0 0 0 0 0 0 0 0 8 1999 0 0 0 0 0 0 0 0 0 0 0 1 1 2000 1 0 0 0 0 0 0 0 0 0 0 0 1 MEAN 5 2 0 0 0 0 0 0 0 0 0 1 8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 1988 *** *** *** 0 4 18 30 30 23 0 0 0 *** 1989 0 0 0 0 5 25 31 31 13 2 0 0 107 1990 0 0 0 0 6 26 31 31 29 0 0 0 123 1991 0 0 0 0 0 20 30 31 19 0 0 0 100 1992 0 0 0 0 1 15 31 29 18 0 0 0 94 1993 0 0 0 0 0 20 31 31 25 0 0 0 107 1994 0 0 0 0 9 24 31 31 19 0 0 0 114 1995 0 0 0 0 2 24 31 31 18 0 0 0 106 1996 0 0 0 0 5 26 31 31 23 3 0 0 119 1997 0 0 0 0 4 25 31 31 19 0 0 0 110 1998 0 0 0 0 6 27 31 31 24 2 0 0 121 1999 0 0 0 0 11 30 30 31 23 5 0 0 130 2000 0 0 0 0 6 29 31 31 24 0 0 0 121 MEAN 0 0 0 0 5 24 31 31 21 1 0 0 113 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 1988 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1989 0 0 0 0 0 0 3 0 0 0 0 0 3 1990 0 0 0 0 0 0 1 1 0 0 0 0 2 1991 0 0 0 0 0 0 2 1 0 0 0 0 3 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 1 0 0 0 0 1 1995 0 0 0 0 0 0 3 0 0 0 0 0 3 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 1 0 0 0 0 0 1 1998 0 0 0 0 0 0 3 1 0 0 0 0 4 1999 0 0 0 0 0 0 3 0 0 0 0 0 3 2000 0 0 0 0 0 1 2 0 0 0 0 0 3 MEAN 0 0 0 0 0 0 1 0 0 0 0 0 1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 1988 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 0 0 0 0 0 0 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 24 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 -------------- 1988 *** *** *** 1 0 0 0 0 0 0 11 12 *** 11 14 4 1 1989 30 28 5 0 0 0 0 0 0 0 2 18 83 11 21 3 31 1990 27 19 10 4 0 0 0 0 0 0 5 17 82 11 13 4 9 1991 19 19 7 0 0 0 0 0 0 0 6 18 69 11 15 3 11 1992 31 26 19 0 0 0 0 0 0 0 4 16 96 11 26 3 28 1993 26 20 18 0 0 0 0 0 0 0 8 19 91 11 13 3 26 1994 22 20 9 0 0 0 0 0 0 0 3 22 76 11 9 3 18 1995 22 13 6 0 0 0 0 0 0 0 12 29 82 11 11 3 30 1996 19 10 10 0 0 0 0 0 0 0 1 6 46 11 11 3 29 1997 25 23 14 4 0 0 0 0 0 0 1 15 82 11 29 4 13 1998 29 23 16 0 0 0 0 0 0 0 0 6 74 12 5 3 26 1999 15 16 9 0 0 0 0 0 0 0 3 16 59 11 13 3 25 2000 24 26 17 0 0 0 0 0 0 0 6 13 86 11 11 3 26 MEAN 24 20 12 1 0 0 0 0 0 0 5 16 78 11 9 4 13 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 ****** ****** ****** 13.0 18.9 23.8 29.3 28.2 23.3 17.3 8.8 4.4 ****** 1989 -5.8 -5.0 7.3 16.0 20.1 25.4 31.0 28.8 22.8 18.4 9.8 4.8 14.5 1990 -1.2 2.2 8.2 12.0 19.8 25.7 30.4 28.2 24.0 17.1 12.1 5.3 15.3 1991 2.8 2.5 8.3 14.7 18.0 25.6 29.7 29.0 24.2 16.4 11.1 2.7 15.4 1992 -3.6 -1.1 2.7 11.5 16.4 22.6 28.0 28.0 22.8 16.9 9.1 3.2 13.0 1993 1.1 3.6 6.9 11.9 16.3 23.7 29.5 28.6 24.1 17.7 8.1 5.9 14.8 1994 4.8 3.4 8.1 15.0 19.0 25.6 29.7 28.3 24.6 17.2 9.4 1.2 15.5 1995 4.3 6.0 8.4 12.1 18.9 24.4 28.5 29.1 23.3 17.2 9.2 3.2 15.4 1996 1.4 5.9 6.0 12.1 20.1 25.3 30.5 29.1 23.6 17.0 10.7 7.2 15.8 1997 4.1 0.9 4.7 11.5 18.8 25.1 29.4 28.3 22.4 17.2 9.9 4.4 14.7 1998 -1.7 1.2 6.8 13.7 18.8 27.2 30.1 30.6 24.1 18.1 12.6 9.8 15.9 1999 4.4 5.7 8.8 13.5 21.0 26.2 29.1 30.9 23.4 18.7 9.7 5.6 16.4 2000 1.3 3.2 7.7 15.7 20.1 26.1 32.2 30.1 23.6 15.9 9.6 4.9 15.8 MEAN 1.0 2.4 7.0 13.3 18.9 25.1 29.8 29.0 23.6 17.3 10.0 4.8 15.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 ****** ****** ****** 3.6 2.4 2.1 5.0 4.6 -1.9 2.6 -0.4 -2.3 ****** 1989 -9.5 -9.1 1.5 2.6 4.6 2.2 5.5 3.4 0.8 1.4 3.4 -0.5 0.5 1990 -4.3 -2.5 -2.6 0.9 0.5 -0.3 2.2 -1.4 -3.6 -1.2 -1.6 -5.0 -1.6 1991 -2.6 -5.5 -0.0 2.0 0.8 1.9 3.6 3.5 -3.6 4.6 -1.1 -1.2 0.2 1992 -7.2 -4.3 -3.2 0.8 5.6 4.2 2.8 3.7 -3.7 -3.9 -0.6 -1.5 -0.6 1993 -4.7 -4.7 -3.0 3.3 7.2 1.9 1.0 0.7 -3.6 -1.0 2.5 1.7 0.1 1994 -0.3 -2.5 0.9 5.0 4.2 -0.7 4.9 -1.0 -0.5 3.9 4.4 -3.3 1.2 1995 -0.7 -1.4 0.3 4.8 6.8 5.7 4.9 1.8 1.6 -4.2 -2.9 -3.8 1.1 1996 -3.7 -0.1 0.3 2.8 4.7 0.7 1.9 -1.1 -1.2 -1.6 -1.8 0.7 0.1 1997 -3.2 -6.0 -1.8 2.3 3.9 2.2 1.4 1.6 -1.8 2.6 3.6 0.7 0.5 1998 -4.0 -2.7 0.6 4.1 6.1 2.7 3.7 4.3 0.6 -1.6 -0.0 -2.9 0.9 1999 -1.1 -1.8 -2.8 1.3 0.2 -0.6 2.8 1.8 -0.6 0.1 -0.8 -2.1 -0.3 2000 -4.0 -5.0 -4.6 2.0 0.4 -3.0 -0.8 0.3 -2.6 0.9 -0.1 0.3 -1.4 MEAN -3.8 -3.8 -1.2 2.7 3.6 1.4 3.0 1.7 -1.5 0.2 0.4 -1.5 0.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 ****** ****** ****** 6.33 5.44 5.26 6.53 6.51 4.00 5.73 4.77 4.01 ****** 1989 2.37 2.46 5.18 5.64 6.38 5.47 7.01 5.92 4.88 5.17 5.94 4.43 5.07 1990 3.44 3.88 4.02 5.04 4.83 4.80 5.37 4.21 3.60 4.44 4.18 3.32 4.26 1991 3.86 3.29 4.77 5.38 4.96 5.24 5.87 6.14 3.54 6.48 4.28 4.35 4.85 1992 2.85 3.41 3.79 4.92 6.86 6.23 5.73 6.01 3.53 3.49 4.74 4.25 4.65 1993 3.36 3.39 3.81 5.88 7.71 5.29 5.00 4.82 3.56 4.43 5.72 5.21 4.85 1994 4.60 3.91 4.92 6.68 6.18 4.38 6.53 4.39 4.62 6.50 6.39 3.76 5.24 1995 4.40 4.25 4.75 6.55 7.50 6.88 6.50 5.27 5.15 3.51 4.01 3.49 5.19 1996 3.68 4.61 4.73 5.69 6.49 5.10 5.27 4.29 4.25 4.17 4.30 4.90 4.79 1997 3.73 3.10 4.12 5.61 6.03 5.34 5.15 5.10 4.04 5.65 5.98 4.89 4.89 1998 3.54 3.87 4.90 6.21 7.12 5.57 5.98 6.20 4.79 4.24 4.79 3.78 5.08 1999 4.34 4.08 3.83 5.19 4.78 4.39 5.73 5.24 4.41 4.69 4.47 4.03 4.60 2000 3.46 3.27 3.46 5.40 4.81 3.70 4.57 4.77 3.89 5.04 4.64 4.70 4.31 MEAN 3.63 3.63 4.36 5.73 6.08 5.20 5.79 5.30 4.17 4.89 4.94 4.24 4.83 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 ****** ****** ****** 8.55 7.39 7.16 8.90 8.86 5.46 7.76 6.44 5.41 ****** 1989 3.18 3.31 6.99 7.64 8.65 7.44 9.53 8.08 6.65 7.02 8.02 5.98 6.87 1990 4.63 5.23 5.43 6.82 6.56 6.53 7.34 5.75 4.92 6.02 5.66 4.48 5.78 1991 5.20 4.44 6.44 7.28 6.74 7.15 8.01 8.35 4.84 8.77 5.80 5.85 6.57 1992 3.83 4.60 5.11 6.66 9.28 8.46 7.81 8.20 4.82 4.75 6.40 5.73 6.30 1993 4.53 4.57 5.14 7.94 10.41 7.19 6.83 6.59 4.86 6.01 7.71 7.02 6.57 1994 6.19 5.27 6.65 9.03 8.39 5.98 8.91 6.00 6.29 8.79 8.61 5.06 7.10 1995 5.94 5.73 6.42 8.85 10.14 9.34 8.86 7.19 7.01 4.77 5.42 4.72 7.03 1996 4.96 6.22 6.38 7.69 8.79 6.94 7.20 5.87 5.79 5.66 5.81 6.61 6.49 1997 5.03 4.17 5.56 7.59 8.18 7.28 7.03 6.97 5.51 7.65 8.08 6.59 6.64 1998 4.76 5.21 6.61 8.39 9.64 7.60 8.17 8.46 6.53 5.76 6.48 5.11 6.89 1999 5.85 5.51 5.19 7.03 6.50 5.99 7.81 7.16 6.01 6.37 6.05 5.44 6.24 2000 4.67 4.42 4.68 7.32 6.54 5.05 6.25 6.52 5.30 6.83 6.28 6.33 5.85 MEAN 4.90 4.89 5.88 7.75 8.25 7.09 7.90 7.23 5.69 6.63 6.67 5.72 6.55 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 ****** ****** ****** 6.97 16.13 24.43 33.79 31.03 25.10 13.05 5.69 3.60 ****** 1989 1.07 1.17 3.65 11.49 16.27 27.30 37.75 33.59 23.21 15.38 4.48 2.84 14.85 1990 1.19 2.15 6.00 8.24 18.52 28.79 37.79 34.87 27.16 14.55 9.22 5.26 16.14 1991 2.43 3.22 5.09 10.56 14.92 27.89 35.91 33.82 27.23 10.63 8.07 1.78 15.13 1992 1.10 1.18 2.73 7.59 10.39 20.73 32.21 31.05 24.66 15.70 5.83 2.32 12.96 1993 2.30 3.73 5.52 6.77 9.05 24.38 36.44 34.32 27.34 15.17 3.72 2.50 14.27 1994 2.62 2.70 4.67 8.79 15.41 28.57 34.53 34.91 25.82 11.55 3.49 1.87 14.58 1995 2.65 3.85 5.12 5.85 12.93 22.78 32.46 35.70 23.73 15.79 7.21 3.25 14.28 1996 2.11 3.36 3.30 7.06 16.13 27.26 37.96 36.61 25.17 15.03 7.59 3.82 15.45 1997 3.47 2.84 3.40 7.07 14.87 26.90 35.90 33.97 23.29 13.11 4.38 1.93 14.26 1998 0.87 1.64 3.74 8.19 13.56 30.59 36.40 37.22 25.44 16.23 8.84 7.44 15.85 1999 2.73 4.06 6.70 9.52 20.37 30.24 34.52 39.38 24.85 16.53 6.51 4.01 16.62 2000 2.34 3.67 6.57 11.47 18.69 31.05 43.13 38.07 25.62 12.07 6.07 2.54 16.77 MEAN 2.07 2.80 4.71 8.43 15.17 26.99 36.06 34.97 25.28 14.22 6.24 3.32 15.02 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 *** *** *** 57 37 27 23 24 21 43 58 67 *** 1989 77 75 70 45 40 25 22 22 26 36 68 71 48 1990 81 74 52 53 33 22 18 16 18 35 42 52 41 1991 70 60 60 48 35 24 20 22 18 50 46 78 44 1992 77 80 69 53 53 35 23 23 19 26 57 74 49 1993 68 59 55 61 59 29 18 18 18 34 70 76 47 1994 71 69 64 55 43 21 23 17 22 49 73 75 49 1995 72 63 61 64 50 34 24 20 27 25 48 64 46 1996 72 68 70 57 42 23 17 16 22 32 47 67 44 1997 63 63 67 57 42 25 19 20 23 43 67 79 47 1998 85 78 68 56 48 23 21 20 24 29 48 44 45 1999 70 63 49 49 31 20 22 17 23 33 52 62 41 2000 70 60 48 44 32 17 14 16 20 41 55 74 41 MEAN 73 68 61 54 42 25 20 19 22 37 56 68 45 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 *** *** *** 75 58 42 33 36 34 60 79 80 *** 1989 87 85 87 66 55 39 32 33 40 49 85 86 62 1990 89 86 71 77 54 40 26 26 27 49 61 68 56 1991 83 75 76 73 51 38 30 35 29 71 65 88 60 1992 86 89 80 75 71 55 38 32 29 39 74 88 63 1993 82 78 77 84 80 49 27 29 30 44 87 91 63 1994 84 84 85 71 64 33 34 29 31 62 88 89 63 1995 87 78 83 83 65 52 37 33 40 37 70 82 62 1996 83 84 86 76 63 39 24 25 36 48 63 83 59 1997 81 81 85 78 62 41 28 33 36 60 81 92 63 1998 93 85 85 78 70 36 31 29 37 42 65 58 59 1999 84 83 70 73 52 35 32 26 37 47 69 80 57 2000 85 80 73 64 54 29 19 25 33 58 72 90 57 MEAN 85 82 80 75 61 41 30 30 34 51 74 83 61 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1988 *** *** *** 43 24 18 16 17 13 31 41 57 *** 1989 66 66 56 30 30 16 15 15 18 26 54 59 38 1990 72 63 36 35 20 12 13 10 12 25 30 39 31 1991 59 48 48 32 24 15 14 15 11 36 33 71 34 1992 69 71 59 36 39 22 14 17 12 18 43 62 39 1993 57 44 41 45 45 17 12 11 11 26 57 65 36 1994 61 56 48 43 30 13 16 10 15 40 62 62 38 1995 60 51 47 51 39 24 16 12 18 17 34 50 35 1996 62 54 57 42 28 13 12 10 13 22 36 56 34 1997 50 49 52 42 28 15 12 12 14 31 57 69 36 1998 78 71 54 40 33 16 14 14 15 20 35 35 35 1999 59 49 32 32 18 12 14 11 14 23 39 51 30 2000 59 43 31 31 19 10 9 10 12 30 43 62 30 MEAN 63 55 47 39 29 16 14 13 14 27 43 57 35 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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 1988 *** *** 1 6 0 0 0 0 0 2 2 4 *** 1989 4 4 9 1 1 0 0 0 0 1 6 4 30 1990 5 5 2 3 1 0 0 0 0 3 0 2 21 1991 4 6 9 4 0 0 0 0 0 2 1 9 35 1992 7 7 11 4 3 0 0 0 0 0 3 8 43 1993 4 5 4 9 4 0 0 0 0 3 5 5 39 1994 8 4 5 4 0 0 0 0 0 4 10 4 39 1995 4 5 5 7 5 1 0 0 0 0 2 1 30 1996 7 8 10 7 3 0 0 0 0 0 0 5 40 1997 3 2 8 5 0 0 0 0 0 3 8 7 36 1998 10 5 7 3 2 1 0 0 0 0 2 0 30 1999 4 5 3 3 1 0 1 0 0 2 1 4 24 2000 5 2 2 4 0 0 0 0 0 2 2 6 23 MEAN 5 5 6 5 2 0 0 0 0 2 3 5 33 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. HIGHEST AND LOWEST LIMITS FOR 13 YEARS DURING 1988-2000 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 10.2 12.4 12.0 17.6 22.0 28.2 31.4 30.2 27.8 22.0 16.2 11.8 1 YEAR - DAY 1994- 4 1996- 9 1993- 8 1994-23 1989-26 1998-22 2000-17 1999- 5 1995- 1 1996- 1 1991- 4 1991- 9 LOW. DRY 03 -21.0 -22.0 -10.4 -4.8 3.0 8.0 10.6 10.2 7.8 0.6 -11.2 -12.4 2 YEAR - DAY 1989-18 1989-17 1997- 8 1997-12 1995- 9 1997- 3 1993- 7 1988-31 1992-29 1996-31 1995-26 1988-29 HIG. WET 03 8.6 7.6 10.0 12.2 13.8 20.2 23.0 21.8 17.0 12.0 11.6 9.6 3 YEAR - DAY 1994- 4 1996-10 1991-23 1990-29 1998-12 1990-22 1992-13 1995-10 1989- 3 1988-30 1988-10 1991- 9 LOW. WET 03 -21.2 -21.8 -10.8 -5.2 1.8 3.6 4.6 4.2 2.2 -0.2 -11.2 -12.6 4 YEAR - DAY 1989-18 1989-17 1997- 8 1997-12 1991-19 1996- 7 1993- 7 1988-31 1992-29 1992-28 1995-26 1988-30 HIG. DRY 09 12.2 16.8 20.2 25.8 33.2 35.6 38.4 37.0 34.6 28.8 21.8 18.4 5 YEAR - DAY 2000- 1 1993-28 1991-30 1991-25 1999-30 2000-30 1989-20 1991- 1 1993- 1 1999- 1 1998- 9 1998-17 LOW. DRY 09 -14.0 -13.8 -3.2 0.6 7.6 16.0 23.0 24.4 18.0 9.4 -2.0 -6.6 6 YEAR - DAY 1989-19 1989-17 1992-11 1997-11 1995- 8 1992- 2 1999-15 1992-29 1995-20 1993-31 1993-14 1988-29 HIG. WET 09 9.8 9.6 15.0 17.2 18.8 30.2 35.0 22.0 18.8 18.2 14.4 11.0 7 YEAR - DAY 1994- 3 1996- 9 1990-23 1988-23 1998- 9 1990-23 1989-16 1991- 8 1990-13 1998- 6 1993-20 1991- 9 LOW. WET 09 -14.0 -14.0 -5.4 -2.0 6.6 9.6 13.0 11.4 9.6 6.4 -3.0 -7.4 8 YEAR - DAY 1989-19 1989-17 1992-10 1997-11 1990- 3 2000-13 1996-15 1988-31 1992-29 1996-28 1993-14 1988-29 HIG. DRY 15 12.2 13.6 20.2 24.8 32.6 36.2 39.0 37.8 35.0 29.8 20.6 15.4 9 YEAR - DAY 1997-12 1995-21 1991-29 1990-26 1999-30 2000-30 1989-20 1996- 2 1995- 1 1999- 2 1990- 5 1990- 3 LOW. DRY 15 -13.8 -9.2 -3.6 0.8 10.0 16.6 18.6 24.8 18.6 9.6 -1.0 -8.4 10 YEAR - DAY 1989-19 1989-16 1992-10 1997-10 1992- 6 1992- 1 1999-15 1988-31 1995-20 1996-30 1995-25 1988-28 HIG. WET 15 9.0 9.2 12.2 17.0 18.0 18.4 21.2 31.4 17.8 18.6 12.4 9.4 11 YEAR - DAY 1994- 2 1996- 9 1998-27 1999-27 1992-30 1998-21 1995-15 1991-13 1995- 1 1998- 6 1993- 1 1991- 8 LOW. WET 15 -14.0 -10.0 -6.0 -0.2 7.2 10.8 12.6 10.6 7.8 5.0 -3.8 -9.4 12 YEAR - DAY 1989-19 1989-16 1992-10 1997-10 1999-20 1996- 6 1993-11 1988-31 1992-29 1996-27 1993-14 1988-28 HIG. MIN. 9.0 9.0 10.6 15.4 21.6 26.8 29.8 29.2 23.6 20.4 13.2 11.4 13 YEAR - DAY 1994- 4 1996- 9 1991-23 1991-29 1994-25 1997-28 2000-16 1999- 3 1994- 1 1996- 2 1991- 3 1990- 5 LOW. MIN. -22.5 -22.5 -13.0 -5.0 1.8 6.0 9.8 9.0 4.4 0.2 -11.8 -12.8 14 YEAR - DAY 1989-18 1989-17 1997- 8 1997-12 1995- 9 1993- 6 1993- 7 1988-31 1992-30 2000-29 1995-26 1988-30 HIG. MAX. 17.6 19.2 22.6 28.2 36.6 40.0 41.0 40.8 37.8 32.0 23.8 21.0 15 YEAR - DAY 2000- 1 1996- 9 1991-29 1997-25 1999-30 2000-30 1998-13 1990-14 1998- 1 1999- 2 1990- 5 1998-17 LOW. MAX. -8.0 -6.5 -2.0 4.6 14.6 22.0 26.6 28.4 22.2 13.4 1.5 -4.4 16 YEAR - DAY 1989-18 1989-17 1992-10 1997-11 1993- 7 1992- 2 1999-15 1992-29 2000-29 1993-31 1993-14 1988-29 HIG. PPTN 48.0 39.0 71.0 67.3 40.0 8.0 5.4 0.2 4.4 36.0 62.0 73.0 17 YEAR - DAY 1994-16 1990-10 1998-17 1996-13 1993-13 1998-13 1999-15 1999-19 2000-29 1994-19 1994-23 1989- 1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 13 YEARS DURING 1988-2000 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 12.4 13.2 15.2 17.4 19.0 20.2 20.4 19.4 19.8 17.6 18.4 13.2 18 YEAR - DAY 1996- 1 1997-18 1993-25 1999-24 2000- 3 1990-29 1993- 7 1990-13 1993-21 1989- 9 1988-21 1998-15 DRY 15 - DRY 09 6.2 6.8 10.2 10.0 9.6 7.8 5.8 4.2 7.4 7.2 7.2 7.4 19 YEAR - DAY 1993-16 2000-25 2000- 8 1993-20 1999- 7 1992- 1 1998-29 1990-19 1993-24 1993-25 1995-11 1996-29 DRY 15 - DRY 03 12.8 15.0 18.4 17.8 19.8 19.6 19.8 19.6 20.6 16.0 20.0 14.0 20 YEAR - DAY 1999-31 1997-17 2000-17 1989-16 2000- 3 1990-29 1993- 7 1995-24 1988-14 1992- 3 1988-22 1988- 8 WET 09 - WET 03 11.0 9.0 16.4 10.0 10.4 22.4 16.4 10.2 10.2 11.6 14.4 8.7 21 YEAR - DAY 1999- 4 1991-15 1990-23 1988-23 2000-13 1989- 3 1989-16 1991- 8 1990-20 1998- 6 1988-21 1990-10 WET 15 - WET 09 5.4 4.4 8.0 7.2 4.0 13.8 15.8 14.0 4.8 6.0 7.4 5.4 22 YEAR - DAY 1990-24 1989-17 1990-23 1988-23 1999-20 1990-23 1989-16 1991-13 1993- 3 1990-24 1993-20 1991- 9 WET 15 - WET 03 11.2 12.2 10.6 9.6 10.8 9.4 9.6 16.8 9.8 12.0 13.8 8.6 23 YEAR - DAY 1992-13 1989-17 1990-10 1991- 8 2000-13 1989- 3 1992- 7 1991-13 1998- 3 1998- 6 1988-21 1989-24 DAY BY DAY DRY 03 15.4 14.0 13.4 12.2 11.8 12.0 9.8 12.4 12.2 11.0 15.0 8.6 24 YEAR - DAY 1998-19 1990- 2 1997- 8 1989-20 1997- 5 1990-30 1989-17 1998-25 1988-19 1989-12 1988-23 1991- 1 DAY BY DAY WET 03 15.4 13.6 13.2 8.2 8.2 11.8 14.0 10.8 9.2 9.4 11.2 8.0 25 YEAR - DAY 1998-19 1990- 2 1997- 8 1989-20 1991- 3 1990-22 1992-13 1995-11 1989- 4 1996-29 1988-21 1991-28 DAY BY DAY DRY 09 8.4 10.2 10.8 9.8 12.6 9.2 7.0 5.4 9.6 10.4 9.4 10.4 26 YEAR - DAY 1999- 9 1990-19 1994-12 1990-29 1995-28 1995- 3 1997- 5 1992-29 1994- 9 2000-26 1991- 4 1988-27 DAY BY DAY WET 09 8.0 8.2 8.8 8.3 5.9 17.0 18.2 3.8 3.8 5.4 8.2 8.6 27 YEAR - DAY 1998-19 1989-18 1990-23 1990-30 1990- 1 1990-23 1989-17 1990-16 1990-13 1998- 7 1993-20 1988-27 DAY BY DAY DRY 15 9.8 10.6 11.4 10.6 10.6 8.4 11.2 5.0 10.2 9.8 10.4 10.4 28 YEAR - DAY 1990-24 1997- 5 1990-11 1999- 8 1999- 7 1992- 1 1999-16 1988-30 1994-10 1996-30 1992-25 1988-27 DAY BY DAY WET 15 8.2 9.4 7.8 7.6 5.0 3.2 4.8 15.8 4.6 7.4 10.8 8.6 29 YEAR - DAY 1990-24 1997- 5 1989-29 2000-10 1995- 7 2000-12 1995-16 1991-13 2000-30 1998- 7 1992-25 1988-27 DAY BY DAY MIN. 12.0 11.6 10.4 9.8 10.2 11.8 12.8 10.6 11.2 10.6 14.8 9.4 30 YEAR - DAY 1989-23 1996- 9 1997- 8 1991- 9 1991- 3 1997-28 1989-17 1998-25 1993-25 1992- 1 1988-23 1998-24 DAY BY DAY MAX. 8.4 9.8 8.9 9.2 7.0 6.4 7.4 4.5 5.8 9.8 8.2 7.4 31 YEAR - DAY 1990-25 1996- 8 1989-28 1999- 9 1995-28 2000-13 1999-15 1991-10 2000-29 2000-26 1989-30 1997- 9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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.***** ***** ***** 12.2 17.3 21.6 27.6 27.4 22.2 16.8 8.5 4.6 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** 6.2 8.8 12.5 19.9 20.1 12.9 9.7 2.6 -0.3 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** 18.1 25.6 30.7 35.4 34.6 31.4 23.9 14.4 9.5 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** 11.9 16.8 18.2 15.5 14.5 18.5 14.2 11.8 9.8 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** 6.01 5.42 5.27 6.48 6.48 4.05 5.69 4.68 3.76 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** 6.73 5.52 5.40 6.77 6.75 4.38 5.89 4.80 4.15 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** 6.25 5.39 5.10 6.35 6.29 3.58 5.60 4.82 4.12 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** -1.0 2.0 9.0 13.0 9.0 8.0 5.0 -9.2 -12.8 ****** DAY ** ** ** 1 8 3 1 31 6 21 21 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** 23.5 32.0 36.0 39.5 38.6 35.0 29.4 22.0 17.0 ****** DAY ** ** ** 17 31 13 23 11 15 3 7 6 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** 6.0 32.0 0.3 0.2 0.0 0.0 1.0 10.0 11.0 33.0 ****** DAY ** ** 21 20 2 17 ** ** 2 15 20 17 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** 8.0 89.7 0.5 0.2 0.0 0.0 1.0 27.3 32.3 104.1 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 3.0 34.4 0.4 62.2 NO. OF DAYS WITH PRECIPITATION. *** *** 2 13 2 1 0 0 1 7 15 10 *** NO. OF DAYS PRECIPITATION EQUAL *** *** 2 8 0 0 0 0 1 5 8 9 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** 0 3 0 0 0 0 0 2 1 4 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** 74 58 42 33 35 34 58 74 78 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** 50 27 20 19 20 16 34 47 60 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** 48 27 19 17 18 14 36 52 61 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 4 4 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 15 13 1 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 0 3 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 4 18 30 30 23 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** 1 0 0 0 0 0 0 11 12 *** DATE OF START AND END FREEZING START = 14 NOV. END = 1 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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. -6.0 -5.1 7.2 15.4 19.0 24.4 29.6 28.0 22.0 17.9 9.6 4.6 13.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -10.9 -9.7 2.8 8.7 12.3 16.2 21.6 20.2 13.5 10.5 4.4 -0.3 7.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. -1.2 -0.4 11.5 22.0 25.7 32.5 37.6 35.9 30.4 25.2 14.8 9.4 20.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.7 9.3 8.7 13.3 13.4 16.3 16.0 15.7 16.9 14.7 10.4 9.7 12.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.04 2.14 4.95 5.72 5.79 5.02 6.02 6.02 4.82 4.64 5.62 4.20 4.75 MEAN OF MIXING RATIO AT 09 GMT. 2.49 2.62 5.29 5.71 6.77 6.35 8.03 6.09 5.09 5.58 6.16 4.54 5.39 MEAN OF MIXING RATIO AT 15 GMT. 2.56 2.64 5.31 5.49 6.57 5.03 6.98 5.66 4.73 5.30 6.04 4.55 5.07 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -22.5 -22.5 -8.6 2.4 6.4 11.0 15.0 16.6 8.4 5.0 -0.4 -3.2 -22.5 DAY 18 17 30 2 2 3 17 31 28 22 22 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 6.0 6.4 17.2 26.1 31.4 37.5 40.6 38.7 36.8 31.2 19.8 14.0 40.6 DAY 11 28 25 16 24 30 20 7 3 6 5 25 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 12.4 41.0 19.0 8.0 0.0 0.0 0.0 0.0 6.8 27.0 73.0 73.0 DAY 12 11 11 25 7 ** ** ** ** 30 30 1 MONTHLY TOTAL PRECIPITATION IN MM. 43.4 48.1 170.8 22.0 11.0 0.0 0.0 0.0 0.0 8.8 107.4 151.7 563.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 46.6 5.9 0.0 47.6 NO. OF DAYS WITH PRECIPITATION. 12 9 19 3 3 0 0 0 0 2 13 9 70 NO. OF DAYS PRECIPITATION EQUAL 9 7 16 3 3 0 0 0 0 2 10 7 57 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 3 6 1 0 0 0 0 0 0 4 3 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 81 82 66 54 37 30 33 40 47 83 86 60 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 75 72 64 35 33 21 19 17 20 29 58 62 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 70 63 35 32 17 17 15 19 31 61 64 42 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 24 2 0 0 0 0 0 0 0 0 0 53 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 14 10 0 0 0 0 28 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 20 17 0 0 0 0 0 0 0 0 0 0 37 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 5 25 31 31 13 2 0 0 107 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 0 0 0 0 0 3 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 28 5 0 0 0 0 0 0 0 2 18 83 DATE OF START AND END FREEZING START = 21 NOV. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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. -1.0 2.4 8.3 11.5 18.3 23.7 29.4 27.0 22.6 16.6 11.4 5.2 14.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.6 -1.8 2.1 4.9 10.5 15.0 22.6 18.4 12.8 9.8 4.0 -0.3 7.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 2.5 6.6 14.5 18.0 26.2 32.4 36.2 35.7 32.5 23.3 18.6 10.7 21.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.1 8.4 12.4 13.1 15.7 17.4 13.6 17.3 19.7 13.5 14.6 11.0 13.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.21 3.64 3.72 5.17 5.32 5.23 5.49 4.40 3.18 4.40 4.18 3.19 4.26 MEAN OF MIXING RATIO AT 09 GMT. 3.54 4.03 4.41 4.80 4.50 5.16 5.52 4.33 3.98 4.70 4.42 3.52 4.41 MEAN OF MIXING RATIO AT 15 GMT. 3.57 3.96 3.92 5.16 4.66 4.02 5.06 3.90 3.65 4.21 3.94 3.25 4.11 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.0 -13.8 -2.4 -0.2 4.0 10.4 18.0 14.0 8.0 4.5 -2.4 -8.0 -18.0 DAY 26 1 3 8 7 6 4 10 19 30 14 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 7.8 13.4 18.6 26.2 33.5 36.4 40.0 40.8 34.2 28.4 23.8 20.0 40.8 DAY 5 18 10 27 24 24 16 14 9 7 5 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.0 39.0 47.0 26.0 5.8 0.0 0.0 0.0 0.0 7.0 1.0 30.0 47.0 DAY 4 10 11 29 13 ** ** ** ** 26 11 25 MONTHLY TOTAL PRECIPITATION IN MM. 96.4 87.3 73.6 52.6 9.0 0.0 0.0 0.0 0.0 23.8 3.3 40.6 386.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 66.6 15.9 0.0 17.5 NO. OF DAYS WITH PRECIPITATION. 16 10 10 6 3 0 0 0 0 5 4 7 61 NO. OF DAYS PRECIPITATION EQUAL 14 8 9 5 2 0 0 0 0 5 3 2 48 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 1 2 0 0 0 0 0 0 0 1 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 83 67 77 54 37 26 26 27 47 60 66 55 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 78 70 45 39 22 16 15 12 13 29 34 45 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 69 43 42 24 13 13 11 13 28 32 44 34 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 14 5 0 0 0 0 0 0 0 0 0 8 27 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 4 22 6 0 0 0 0 33 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 6 1 0 0 0 0 0 0 0 0 0 3 10 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 6 26 31 31 29 0 0 0 123 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 1 0 0 0 0 2 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 19 10 4 0 0 0 0 0 0 5 17 82 DATE OF START AND END FREEZING START = 13 NOV. END = 9 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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. 2.8 2.6 8.3 13.9 17.1 24.4 28.7 28.0 23.4 16.2 10.6 2.6 14.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.1 -2.3 3.4 7.4 9.9 16.2 21.0 19.6 15.0 9.9 4.0 -0.9 8.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.6 7.4 13.2 20.5 24.2 32.5 36.4 36.4 31.7 22.6 17.2 6.0 21.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.7 9.7 9.8 13.1 14.3 16.3 15.4 16.8 16.7 12.7 13.2 6.9 12.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.66 3.21 4.64 5.68 4.92 5.36 5.71 5.69 3.71 6.56 4.19 4.21 4.79 MEAN OF MIXING RATIO AT 09 GMT. 4.00 3.38 5.02 5.45 5.13 5.48 6.22 6.22 3.75 6.67 4.50 4.49 5.03 MEAN OF MIXING RATIO AT 15 GMT. 3.90 3.29 4.64 5.00 4.84 4.90 5.66 6.51 3.17 6.22 4.15 4.34 4.72 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -10.0 -4.8 1.8 6.0 9.2 14.4 15.0 10.2 3.4 -2.8 -8.6 -10.0 DAY 28 5 10 13 18 1 8 30 21 30 27 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 10.8 15.6 22.6 27.0 28.8 37.5 40.4 40.0 37.2 27.6 23.0 14.8 40.4 DAY 12 24 29 25 9 30 31 1 1 13 2 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.0 34.0 26.0 16.0 0.6 0.0 0.0 0.0 0.0 11.0 6.0 46.0 46.0 DAY 14 27 15 4 23 ** ** ** ** 2 4 12 MONTHLY TOTAL PRECIPITATION IN MM. 65.9 115.7 106.6 47.9 0.7 0.0 0.0 0.0 0.0 40.0 9.0 171.0 556.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 51.8 8.7 0.0 39.5 NO. OF DAYS WITH PRECIPITATION. 12 10 14 8 2 0 0 0 0 8 3 13 70 NO. OF DAYS PRECIPITATION EQUAL 9 10 12 4 0 0 0 0 0 8 3 13 59 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 4 5 2 0 0 0 0 0 1 0 6 20 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 73 73 71 51 38 30 32 28 69 62 87 58 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 54 55 38 27 18 17 17 13 40 38 74 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 53 52 35 26 16 15 18 12 42 39 74 37 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 11 1 0 0 0 0 0 0 0 0 9 27 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 13 9 2 0 0 0 28 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 2 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 20 30 31 19 0 0 0 100 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 1 0 0 0 0 3 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 19 19 7 0 0 0 0 0 0 0 6 18 69 DATE OF START AND END FREEZING START = 15 NOV. END = 11 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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. -3.5 -1.0 2.6 11.2 15.8 21.3 26.9 27.0 21.7 16.4 9.1 3.2 12.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.2 -4.2 -1.8 5.2 9.8 13.4 17.9 19.9 13.3 7.9 3.4 -0.5 6.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 0.2 2.1 6.9 17.1 21.9 29.3 36.0 34.2 30.0 24.8 14.9 7.0 18.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.4 6.3 8.7 11.9 12.1 15.9 18.1 14.3 16.7 16.9 11.5 7.5 12.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.67 3.14 3.51 4.88 6.74 6.48 6.29 5.96 3.55 3.30 4.59 4.20 4.61 MEAN OF MIXING RATIO AT 09 GMT. 2.94 3.59 4.01 4.89 6.73 5.99 5.59 6.20 3.39 3.77 4.82 4.24 4.68 MEAN OF MIXING RATIO AT 15 GMT. 2.93 3.51 3.84 5.01 7.11 6.23 5.32 5.87 3.64 3.41 4.80 4.31 4.67 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.4 -12.0 -10.5 0.5 5.2 8.4 14.2 16.2 4.4 2.2 -7.6 -11.0 -16.4 DAY 4 29 1 3 7 3 12 23 30 28 27 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 5.2 7.2 15.8 23.8 31.2 34.8 38.5 38.0 33.6 28.5 22.4 13.2 38.5 DAY 20 23 29 12 29 29 29 5 9 4 5 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 29.0 24.0 37.0 11.0 30.0 4.0 0.0 0.0 0.0 0.0 20.0 27.6 37.0 DAY 21 23 15 14 9 3 ** ** ** ** 8 2 MONTHLY TOTAL PRECIPITATION IN MM. 91.3 99.5 135.5 35.6 83.8 9.3 0.0 0.0 0.0 0.0 41.9 112.5 609.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 53.5 21.1 0.0 25.3 NO. OF DAYS WITH PRECIPITATION. 12 19 16 7 10 4 0 0 0 0 10 16 94 NO. OF DAYS PRECIPITATION EQUAL 12 18 14 4 10 4 0 0 0 0 5 12 79 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 3 4 1 3 0 0 0 0 0 1 3 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 84 79 71 70 54 38 32 29 38 72 86 61 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 73 77 65 42 42 25 15 19 13 20 47 64 42 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 78 62 44 46 26 15 18 15 20 51 71 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 12 11 0 0 0 0 0 0 0 3 5 51 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 4 9 3 0 0 0 17 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 14 6 2 0 0 0 0 0 0 0 0 2 24 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 1 15 31 29 18 0 0 0 94 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 26 19 0 0 0 0 0 0 0 4 16 96 DATE OF START AND END FREEZING START = 26 NOV. END = 28 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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. 1.2 3.5 6.3 11.6 15.6 22.1 28.3 27.3 22.7 17.2 7.9 5.7 14.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.2 -2.1 0.0 4.9 9.0 12.9 20.4 19.3 12.9 10.5 2.2 0.2 7.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.5 9.2 12.7 18.4 22.2 31.2 36.2 35.4 32.6 23.9 13.5 11.2 21.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.7 11.3 12.7 13.5 13.2 18.3 15.8 16.1 19.7 13.4 11.3 11.0 13.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.18 3.46 3.84 5.73 7.50 5.72 4.92 5.43 3.66 4.22 5.38 4.72 4.82 MEAN OF MIXING RATIO AT 09 GMT. 3.37 3.41 3.88 6.09 7.61 4.92 5.33 4.86 3.76 4.57 6.20 5.53 4.96 MEAN OF MIXING RATIO AT 15 GMT. 3.54 3.30 3.69 5.81 8.01 5.21 4.74 4.17 3.26 4.49 5.57 5.37 4.76 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.8 -9.0 -6.6 0.6 2.8 6.0 9.8 14.0 4.4 5.0 -9.0 -3.4 -12.8 DAY 18 16 15 13 1 6 7 22 25 31 14 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.0 17.6 22.0 26.5 27.6 36.8 39.8 37.8 36.0 29.8 19.6 15.2 39.8 DAY 29 28 31 19 30 30 16 16 1 1 8 22 24 HOUR MAXIMUM PRECIPITATION IN MM. 36.0 18.0 27.0 15.4 40.0 4.0 0.0 0.0 0.0 23.0 25.0 23.0 40.0 DAY 7 20 18 26 13 1 ** ** ** 31 25 8 MONTHLY TOTAL PRECIPITATION IN MM. 80.3 50.8 67.9 104.2 69.1 4.0 0.0 0.0 0.0 57.7 107.6 70.3 611.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 32.5 29.0 0.0 38.5 NO. OF DAYS WITH PRECIPITATION. 10 8 11 11 12 1 0 0 0 5 10 7 75 NO. OF DAYS PRECIPITATION EQUAL 8 6 9 11 8 1 0 0 0 4 10 6 63 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 2 5 1 0 0 0 0 3 5 3 23 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 77 75 82 80 49 27 29 30 42 85 90 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 49 45 51 48 18 14 14 12 29 64 70 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 50 45 51 50 20 13 12 12 31 62 69 40 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 11 10 2 0 0 0 0 0 0 0 4 0 27 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 13 10 1 0 0 0 25 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 0 0 0 0 0 0 0 0 0 0 0 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 20 31 31 25 0 0 0 107 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 20 18 0 0 0 0 0 0 0 8 19 91 DATE OF START AND END FREEZING START = 13 NOV. END = 26 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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. 4.5 3.3 7.7 14.3 17.8 24.2 29.2 27.5 24.3 17.3 9.6 1.4 15.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.0 -1.5 1.9 7.7 10.4 16.2 21.5 18.4 17.8 11.9 4.9 -2.9 8.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.1 8.1 13.6 20.9 25.2 32.2 37.0 36.6 30.8 22.6 14.2 5.8 21.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.1 9.6 11.7 13.2 14.8 16.0 15.5 18.2 13.0 10.7 9.3 8.7 12.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.35 3.83 4.83 6.10 6.14 4.91 6.80 4.81 4.79 6.22 6.15 3.55 5.21 MEAN OF MIXING RATIO AT 09 GMT. 4.74 3.82 4.92 7.01 6.26 4.29 6.57 4.50 4.59 6.82 6.57 3.84 5.33 MEAN OF MIXING RATIO AT 15 GMT. 4.70 4.07 5.02 6.93 6.15 3.95 6.23 3.85 4.48 6.46 6.45 3.87 5.18 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.4 -8.5 -2.4 1.5 3.0 9.5 16.6 14.0 12.0 7.2 -1.0 -11.0 -11.0 DAY 11 4 17 18 2 18 5 25 29 13 9 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.6 12.4 20.8 27.4 33.5 36.0 39.3 40.0 35.0 27.4 19.0 11.0 40.0 DAY 1 11 31 22 31 10 15 6 1 1 3 2 24 HOUR MAXIMUM PRECIPITATION IN MM. 48.0 33.0 37.0 20.3 2.0 0.0 0.0 0.0 0.4 36.0 62.0 24.0 62.0 DAY 16 28 14 26 3 ** ** ** 9 19 23 30 MONTHLY TOTAL PRECIPITATION IN MM. 127.6 68.3 98.1 59.3 4.4 0.0 0.0 0.0 0.4 102.2 258.8 69.5 788.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 37.3 8.1 0.1 54.6 NO. OF DAYS WITH PRECIPITATION. 15 16 16 11 3 0 0 0 1 10 16 12 100 NO. OF DAYS PRECIPITATION EQUAL 13 11 12 10 2 0 0 0 0 6 12 10 76 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 6 1 3 2 0 0 0 0 0 3 8 2 25 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 81 83 71 63 33 34 29 30 60 85 85 61 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 59 53 46 33 15 18 12 18 44 65 67 41 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 66 57 48 33 14 16 11 17 44 68 72 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 6 0 0 0 0 0 0 0 0 0 14 23 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 3 15 5 5 0 0 0 30 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 3 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 9 24 31 31 19 0 0 0 114 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 1 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 20 9 0 0 0 0 0 0 0 3 22 76 DATE OF START AND END FREEZING START = 9 NOV. END = 18 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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. 4.4 6.0 8.0 11.8 18.3 23.3 27.4 27.8 22.1 16.5 8.8 2.8 14.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.5 0.8 1.4 5.7 12.0 15.8 18.5 18.3 13.3 8.9 1.3 -3.1 7.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.3 11.1 14.5 17.9 24.6 30.8 36.3 37.3 31.0 24.1 16.3 8.8 21.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.8 10.3 13.1 12.2 12.6 15.0 17.8 19.0 17.7 15.2 15.0 11.9 14.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.90 4.05 4.59 6.02 7.23 7.18 6.31 5.50 4.98 3.34 4.10 3.28 5.04 MEAN OF MIXING RATIO AT 09 GMT. 4.72 4.17 4.80 6.77 7.64 6.90 6.62 5.25 5.46 3.72 4.02 3.64 5.31 MEAN OF MIXING RATIO AT 15 GMT. 4.59 4.52 4.86 6.87 7.62 6.55 6.57 5.05 5.01 3.46 3.89 3.56 5.21 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.6 -3.6 -3.2 1.0 1.8 8.8 12.8 14.2 8.4 2.6 -11.8 -7.4 -11.8 DAY 23 10 1 6 9 6 3 22 30 6 26 21 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.6 15.4 19.2 23.2 30.6 34.6 40.6 39.6 37.0 29.6 23.0 13.4 40.6 DAY 30 21 31 30 24 21 20 1 1 2 1 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 21.0 19.5 19.0 39.5 19.0 6.0 0.0 0.0 0.0 0.0 17.0 5.0 39.5 DAY 16 5 12 4 29 16 ** ** ** ** 3 14 MONTHLY TOTAL PRECIPITATION IN MM. 40.5 59.9 72.2 105.3 80.4 15.0 0.0 0.0 0.0 0.0 33.7 7.8 414.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.6 48.4 0.0 10.0 NO. OF DAYS WITH PRECIPITATION. 5 11 10 18 11 5 0 0 0 0 6 5 71 NO. OF DAYS PRECIPITATION EQUAL 4 9 7 13 10 5 0 0 0 0 6 3 57 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 2 3 2 4 0 0 0 0 0 1 0 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 86 76 83 81 65 52 37 33 40 35 68 81 61 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 54 49 54 42 27 18 14 21 21 36 55 38 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 65 60 51 58 43 25 18 13 20 21 39 55 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 0 0 0 0 0 0 0 0 0 6 13 26 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 6 4 1 0 0 0 17 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 2 24 31 31 18 0 0 0 106 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 0 0 0 0 0 3 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 13 6 0 0 0 0 0 0 0 12 29 82 DATE OF START AND END FREEZING START = 11 NOV. END = 30 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. MEAN AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.6 6.1 6.1 11.9 18.9 23.9 29.6 28.1 22.7 16.7 10.5 7.3 15.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.0 1.3 1.4 6.2 11.1 15.9 22.9 19.9 13.7 9.1 4.4 2.5 8.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.2 11.0 10.8 17.6 26.6 31.9 36.3 36.2 31.6 24.3 16.6 12.0 21.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.2 9.7 9.4 11.4 15.5 16.0 13.4 16.3 17.9 15.2 12.2 9.5 12.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.59 4.43 4.57 5.65 6.55 5.23 5.36 4.30 4.46 4.26 4.09 4.53 4.75 MEAN OF MIXING RATIO AT 09 GMT. 3.76 4.69 4.83 5.62 6.68 5.78 5.55 4.46 4.39 4.38 4.52 5.11 4.98 MEAN OF MIXING RATIO AT 15 GMT. 3.70 4.71 4.79 5.79 6.22 4.29 4.91 4.10 3.89 3.86 4.29 5.05 4.63 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.8 -4.6 -3.6 2.8 7.4 6.4 16.2 13.8 10.6 0.4 -0.8 -2.2 -8.8 DAY 23 6 5 26 2 7 7 25 21 31 11 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.6 19.2 19.2 24.6 31.5 35.6 38.2 39.0 35.0 31.2 21.8 18.0 39.0 DAY 2 9 30 30 27 30 20 2 2 3 5 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.3 21.0 29.0 67.3 7.6 0.0 4.0 0.0 0.0 2.0 0.6 30.0 67.3 DAY 5 21 2 13 20 ** 18 ** ** 14 22 10 MONTHLY TOTAL PRECIPITATION IN MM. 121.8 90.3 161.5 130.5 28.5 0.0 4.0 0.0 0.0 4.3 1.9 87.0 629.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 59.3 25.2 0.6 14.8 NO. OF DAYS WITH PRECIPITATION. 16 13 19 13 7 0 1 0 0 5 4 11 89 NO. OF DAYS PRECIPITATION EQUAL 12 12 16 11 5 0 1 0 0 2 0 9 68 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 3 6 4 0 0 0 0 0 0 0 2 20 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 81 84 75 61 36 24 25 36 48 61 77 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 62 63 47 33 19 15 12 16 25 40 62 39 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 62 63 49 31 14 13 11 15 24 40 63 38 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 11 1 0 0 0 0 0 0 0 0 0 0 12 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 21 11 0 0 0 0 36 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 0 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 5 26 31 31 23 3 0 0 119 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 19 10 10 0 0 0 0 0 0 0 1 6 46 DATE OF START AND END FREEZING START = 11 NOV. END = 29 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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. 3.9 0.7 4.8 11.2 17.8 23.6 28.1 27.4 21.3 16.8 9.9 4.3 14.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.4 -5.0 -0.1 5.0 9.9 14.5 20.0 18.0 12.4 9.7 5.7 0.1 7.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.2 6.4 9.8 17.4 25.6 32.7 36.3 36.7 30.1 23.9 14.1 8.5 20.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.6 11.4 9.9 12.4 15.7 18.2 16.3 18.7 17.7 14.2 8.4 8.4 13.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.67 2.89 4.15 5.27 6.15 5.53 5.32 5.29 4.15 5.59 5.75 4.50 4.85 MEAN OF MIXING RATIO AT 09 GMT. 3.91 3.16 4.11 5.88 6.16 5.40 5.58 5.33 4.16 5.87 6.25 5.13 5.08 MEAN OF MIXING RATIO AT 15 GMT. 3.62 3.23 4.10 5.68 5.78 5.09 4.55 4.68 3.81 5.48 5.96 5.04 4.75 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.0 -15.0 -13.0 -5.0 2.0 7.0 14.6 13.8 8.2 4.2 -1.0 -5.2 -15.0 DAY 30 6 8 12 6 3 7 31 14 25 29 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.4 15.4 17.2 28.2 32.0 36.6 40.0 38.8 33.6 28.8 18.2 14.6 40.0 DAY 7 21 31 25 28 28 30 25 1 17 3 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 29.0 14.0 22.0 32.0 3.3 1.0 0.4 0.0 0.0 14.0 34.0 34.0 34.0 DAY 16 19 17 5 19 6 5 ** ** 22 3 9 MONTHLY TOTAL PRECIPITATION IN MM. 67.3 36.4 103.9 79.9 13.6 1.0 0.4 0.0 0.0 32.2 145.2 122.9 602.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 34.4 15.7 0.1 49.8 NO. OF DAYS WITH PRECIPITATION. 8 8 17 13 11 1 1 0 0 7 14 13 93 NO. OF DAYS PRECIPITATION EQUAL 6 5 11 7 5 1 0 0 0 4 10 11 60 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 6 3 0 0 0 0 0 1 7 4 26 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 78 84 76 62 41 28 33 36 59 79 90 62 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 56 59 47 32 18 15 14 16 33 61 74 40 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 54 56 58 48 31 17 12 13 16 37 61 74 40 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 15 5 2 0 0 0 0 0 0 0 2 30 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 11 6 0 0 0 0 20 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 4 1 0 0 0 0 0 0 0 0 0 5 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 25 31 31 19 0 0 0 110 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 25 23 14 4 0 0 0 0 0 0 1 15 82 DATE OF START AND END FREEZING START = 29 NOV. END = 13 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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. -1.8 1.3 6.7 13.2 17.8 25.7 28.9 29.5 23.2 17.6 12.2 9.7 15.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.6 -2.3 1.5 6.5 9.9 16.8 21.0 21.7 14.2 9.3 4.9 3.5 8.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 1.9 4.9 11.9 20.0 25.6 34.5 36.8 37.3 32.1 25.9 19.6 16.0 22.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.5 7.2 10.4 13.5 15.7 17.7 15.8 15.6 17.9 16.6 14.7 12.5 13.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.29 3.55 4.66 5.97 6.96 5.53 6.27 6.17 4.84 3.92 4.49 3.62 4.94 MEAN OF MIXING RATIO AT 09 GMT. 3.62 3.97 5.04 6.43 7.27 5.74 6.08 6.73 5.04 4.56 5.17 4.01 5.31 MEAN OF MIXING RATIO AT 15 GMT. 3.71 4.10 5.01 6.22 7.12 5.45 5.60 5.70 4.48 4.24 4.70 3.70 5.00 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.4 -12.0 -3.0 1.2 4.6 10.0 12.6 15.4 9.2 4.6 1.4 -2.6 -18.4 DAY 17 18 3 25 1 2 7 23 27 25 14 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.4 11.4 18.5 26.4 32.4 38.0 41.0 40.2 37.8 31.0 23.6 21.0 41.0 DAY 25 24 24 16 28 27 13 29 1 6 9 17 24 HOUR MAXIMUM PRECIPITATION IN MM. 34.0 16.2 71.0 28.5 19.0 8.0 1.3 0.0 0.6 0.0 33.1 0.2 71.0 DAY 5 15 17 28 12 13 29 ** 12 ** 11 31 MONTHLY TOTAL PRECIPITATION IN MM. 144.4 72.5 178.4 47.2 29.0 10.2 1.3 0.0 0.6 0.0 51.1 0.2 534.9 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 73.9 16.2 0.4 9.6 NO. OF DAYS WITH PRECIPITATION. 18 17 14 9 8 3 1 0 1 0 3 1 75 NO. OF DAYS PRECIPITATION EQUAL 16 14 11 5 4 2 1 0 0 0 2 0 55 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 7 3 4 1 1 0 0 0 0 0 2 0 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 91 83 83 77 69 35 31 29 37 42 63 57 58 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 82 75 60 45 36 17 16 17 17 23 42 38 39 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 84 76 61 47 38 17 15 15 17 23 38 37 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 18 7 0 0 0 0 0 0 0 0 0 0 25 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 15 21 2 0 0 0 45 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 8 0 0 0 0 0 0 0 0 0 0 0 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 6 27 31 31 24 2 0 0 121 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 1 0 0 0 0 4 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 23 16 0 0 0 0 0 0 0 0 6 74 DATE OF START AND END FREEZING START = 5 DEC. END = 26 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 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. 4.6 5.7 8.6 13.0 19.9 24.7 28.4 30.2 22.7 18.4 9.7 5.7 16.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.0 -0.2 2.2 5.4 11.0 15.7 20.6 22.7 13.3 10.7 4.0 0.1 8.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.2 11.7 15.0 20.5 28.8 33.8 36.2 37.7 32.0 26.1 15.5 11.3 23.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.2 11.9 12.8 15.1 17.8 18.1 15.6 15.0 18.7 15.4 11.5 11.2 14.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.10 3.89 3.87 5.18 4.99 4.98 5.97 5.48 4.47 4.67 4.48 3.82 4.66 MEAN OF MIXING RATIO AT 09 GMT. 4.53 4.19 3.85 4.91 4.85 4.24 6.14 5.80 4.63 4.98 4.61 4.21 4.74 MEAN OF MIXING RATIO AT 15 GMT. 4.38 4.16 3.78 5.49 4.51 3.94 5.09 4.43 4.11 4.44 4.32 4.07 4.39 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.2 -6.4 -5.4 1.0 4.8 10.4 12.2 13.4 9.8 4.8 -4.0 -6.0 -6.4 DAY 5 22 18 3 2 5 16 31 25 30 29 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.2 16.8 22.0 27.0 36.6 37.6 40.6 39.6 36.5 32.0 20.6 17.4 40.6 DAY 31 26 31 30 30 1 21 27 3 2 7 31 24 HOUR MAXIMUM PRECIPITATION IN MM. 32.0 39.0 26.0 15.9 8.0 0.0 5.4 0.2 0.0 13.6 6.0 8.2 39.0 DAY 9 20 20 1 7 ** 15 19 ** 31 1 10 MONTHLY TOTAL PRECIPITATION IN MM. 75.4 101.0 48.8 42.4 9.7 0.0 5.5 0.2 0.0 26.3 15.0 32.2 356.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 63.2 14.6 1.6 20.6 NO. OF DAYS WITH PRECIPITATION. 13 8 8 7 3 0 2 1 0 3 7 7 59 NO. OF DAYS PRECIPITATION EQUAL 8 7 5 7 2 0 1 0 0 2 6 6 44 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 3 2 1 0 0 0 0 0 2 0 0 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 79 69 71 50 35 32 26 37 47 68 78 56 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 55 39 34 21 14 18 15 17 26 43 56 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 64 55 38 41 20 13 15 11 16 26 44 54 33 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 3 3 2 0 0 0 0 0 0 0 1 3 12 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 13 22 0 0 0 0 38 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 1 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 11 30 30 31 23 5 0 0 130 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 3 0 0 0 0 0 3 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 16 9 0 0 0 0 0 0 0 3 16 59 DATE OF START AND END FREEZING START = 13 NOV. END = 25 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. MEAN AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.3 3.1 7.4 14.8 18.8 24.7 31.5 29.2 22.6 15.4 9.3 4.8 15.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.3 -3.2 -0.2 7.4 9.9 15.5 24.8 21.4 13.8 8.5 3.9 0.6 8.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.0 9.5 15.0 22.1 27.7 33.9 38.3 37.0 31.5 22.3 14.7 9.1 22.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.3 12.7 15.2 14.7 17.8 18.4 13.5 15.6 17.7 13.8 10.8 8.5 14.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.24 3.16 3.59 5.46 5.36 4.14 4.63 5.12 4.10 5.02 4.47 4.51 4.40 MEAN OF MIXING RATIO AT 09 GMT. 3.58 3.30 3.46 5.49 4.60 3.73 4.93 5.05 4.27 5.02 4.86 4.86 4.43 MEAN OF MIXING RATIO AT 15 GMT. 3.57 3.36 3.34 5.25 4.48 3.22 4.15 4.15 3.29 5.08 4.60 4.71 4.10 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.4 -9.0 -6.0 2.4 4.2 10.6 19.0 11.0 9.8 0.2 -1.6 -4.4 -11.4 DAY 30 10 9 11 3 6 3 31 27 29 23 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.6 17.0 20.6 26.6 33.0 40.0 41.0 39.0 36.8 26.2 20.0 13.0 41.0 DAY 1 25 22 28 25 30 17 2 9 7 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 33.0 12.0 53.9 14.0 2.3 0.0 0.4 0.0 4.4 8.4 15.8 24.0 53.9 DAY 6 13 24 21 6 ** 13 ** 29 26 30 24 MONTHLY TOTAL PRECIPITATION IN MM. 120.1 28.7 67.0 36.9 3.9 0.0 0.4 0.0 5.3 21.2 27.3 88.6 399.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 54.0 10.2 1.4 34.3 NO. OF DAYS WITH PRECIPITATION. 12 8 6 7 3 0 1 0 2 7 6 17 69 NO. OF DAYS PRECIPITATION EQUAL 11 5 5 5 2 0 0 0 1 5 3 12 49 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 1 1 1 0 0 0 0 0 0 1 3 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 79 71 63 54 29 19 25 32 56 70 88 56 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 65 49 35 34 20 12 12 13 16 33 47 68 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 51 37 33 21 10 10 11 13 34 48 68 34 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 15 14 12 0 0 0 0 0 0 0 0 1 42 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 26 16 0 0 0 0 43 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 6 29 31 31 24 0 0 0 121 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 2 0 0 0 0 0 3 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 24 26 17 0 0 0 0 0 0 0 6 13 86 DATE OF START AND END FREEZING START = 11 NOV. END = 26 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. MEAN AND EXTREMES FOR THE PERIOD 1988 TO 2000 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. 1.0 2.4 6.8 12.8 17.9 23.6 28.8 28.0 22.6 16.9 9.8 4.8 14.6 SD OF MEAN DAILY TEMPERATURE IN C. 3.44 3.19 1.74 1.43 1.22 1.29 1.19 1.01 0.78 0.77 1.19 2.14 1.62 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.4 -2.5 1.2 6.3 10.4 15.1 21.0 19.8 13.8 9.7 3.8 -0.1 7.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.4 7.3 12.4 19.3 25.4 32.2 36.5 36.2 31.4 24.1 15.7 9.6 21.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.8 9.8 11.2 13.0 15.0 17.1 15.6 16.4 17.6 14.3 11.9 9.7 13.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.41 3.45 4.25 5.61 6.09 5.43 5.82 5.44 4.22 4.76 4.79 4.01 4.77 MEAN OF MIXING RATIO AT 09 GMT. 3.77 3.70 4.47 5.83 6.14 5.34 6.08 5.51 4.38 5.12 5.15 4.41 4.99 MEAN OF MIXING RATIO AT 15 GMT. 3.74 3.74 4.36 5.77 6.04 4.85 5.48 4.96 3.94 4.79 4.89 4.31 4.73 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -22.5 -22.5 -13.0 -5.0 1.8 6.0 9.8 9.0 4.4 0.2 -11.8 -12.8 -22.5 YEAR - DAY 89-18 89-17 97- 8 97-12 95- 9 93- 6 93- 7 88-31 92-30 0-29 95-26 88-30 89-18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.6 19.2 22.6 28.2 36.6 40.0 41.0 40.8 37.8 32.0 23.8 21.0 41.0 YEAR - DAY 0- 1 96- 9 91-29 97-25 99-30 0-30 98-13 90-14 98- 1 99- 2 90- 5 98-17 98-13 24 HOUR MAXIMUM PRECIPITATION IN MM. 48.0 39.0 71.0 67.3 40.0 8.0 5.4 0.2 4.4 36.0 62.0 73.0 73.0 YEAR - DAY 94-16 90-10 98-17 96-13 93-13 98-13 99-15 99-19 0-29 94-19 94-23 89- 1 89- 1 MONTHLY TOTAL PRECIPITATION IN MM. 89.5 71.5 99.4 65.7 26.4 3.1 0.9 0.0 0.6 26.4 64.2 81.4 529.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 49.3 18.0 0.2 32.5 NO. OF DAYS WITH PRECIPITATION. 12 11 12 10 6 1 0 0 0 5 9 10 76 NO. OF DAYS PRECIPITATION EQUAL 10 9 10 7 4 1 0 0 0 3 6 8 58 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 2 3 2 1 0 0 0 0 1 2 2 17 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 80 78 73 61 40 30 30 34 50 72 81 59 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 61 53 43 32 18 16 15 16 30 48 61 39 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 69 62 53 45 32 17 15 14 15 31 49 62 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 12 9 3 0 0 0 0 0 0 0 1 5 30 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 14 11 1 0 0 0 29 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 5 2 0 0 0 0 0 0 0 0 0 1 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 5 24 31 31 21 1 0 0 113 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 24 20 12 1 0 0 0 0 0 0 5 16 78 DATE OF START AND END FREEZING START = 9 NOV. END = 13 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION RAVANSAR LATITUDE 34 43 N DATA PROCESSING CENTER LONGITUDE 46 40 E ELEVATION 1500 MET. MEAN AND EXTREMES FOR THE PERIOD 1988 TO 2000 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. 1.0 2.4 7.0 13.3 18.9 25.1 29.8 29.0 23.6 17.3 10.0 4.8 15.2 AVERAGE DEW POINT TEMPERATURE. IN C. -3.8 -3.8 -1.2 2.7 3.6 1.4 3.0 1.7 -1.5 0.2 0.4 -1.5 0.1 AVERAGE OF MIXING RATIO IN G/KG 3.63 3.63 4.36 5.73 6.08 5.20 5.79 5.30 4.17 4.89 4.94 4.24 4.83 AVERAGE OF VAPOUR PRESSURE HPA 4.90 4.89 5.88 7.75 8.25 7.09 7.90 7.23 5.69 6.63 6.67 5.72 6.55 AVERAGE OF SATURATION DEFICIT IN HPA 2.07 2.80 4.71 8.43 15.17 26.99 36.06 34.97 25.28 14.22 6.24 3.32 15.02 AVERAGE RELATIVE HUMIDITY IN PERCENT 73 68 61 54 42 25 20 19 22 37 56 68 45 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 85 82 80 75 61 41 30 30 34 51 74 83 61 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 63 55 47 39 29 16 14 13 14 27 43 57 35 NO. OF DAYS PRECIPITATION EQUAL 5 5 6 5 2 0 0 0 0 2 3 5 33 OR MORE THAN 5 MM.