IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1981 ****** ****** ****** ****** ****** ****** 26.4 26.7 22.8 17.5 15.0 11.3 ****** 1982 6.2 5.8 8.7 16.8 19.5 23.2 26.6 25.0 23.9 17.4 11.0 7.4 20.8 1983 6.2 7.7 9.6 15.8 21.8 24.6 28.2 27.0 23.2 18.1 15.8 9.3 22.0 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 7.4 8.6 8.0 16.8 22.1 26.0 26.9 26.9 24.9 17.5 14.0 8.6 19.5 1986 7.8 7.7 7.2 15.2 19.9 24.9 27.0 27.3 24.7 19.1 12.8 6.5 20.8 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 6.3 7.4 10.9 15.6 19.3 25.7 26.4 25.6 23.2 18.6 13.2 9.8 20.1 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 5.5 7.3 10.2 15.3 19.1 25.0 27.0 26.4 24.7 18.5 ****** 8.5 ****** 1991 7.3 6.3 8.4 15.6 18.8 23.7 27.3 27.1 23.6 20.5 13.0 8.9 21.0 1992 5.5 7.4 8.5 14.0 17.6 ****** 25.5 24.2 22.7 17.5 13.8 8.7 ****** 1993 ****** ****** ****** ****** ****** 23.5 25.8 26.9 23.6 17.2 10.3 7.6 ****** 1994 7.3 4.9 10.0 ****** 20.8 22.5 25.6 26.5 22.3 18.2 14.8 7.8 ****** 1995 9.1 8.6 11.0 16.6 21.1 25.2 27.4 27.8 24.6 17.4 14.8 8.1 19.7 1996 6.1 8.1 8.5 13.6 21.4 23.8 27.5 27.6 25.3 18.7 13.3 11.0 21.5 1997 9.0 7.5 9.1 16.2 21.1 26.0 27.1 28.2 23.0 21.0 13.0 9.7 20.7 1998 6.8 6.8 11.4 17.5 21.3 26.8 27.6 28.4 24.0 18.8 15.5 11.4 21.6 1999 8.5 11.4 11.3 15.6 19.6 24.6 26.7 29.8 24.3 20.2 12.6 10.2 21.3 2000 7.9 8.7 10.0 19.0 20.7 24.2 28.0 29.0 25.8 18.5 12.5 9.9 21.1 2001 7.2 10.0 13.5 17.2 21.7 25.1 27.5 28.4 25.4 18.6 14.5 11.1 21.2 2002 8.4 9.5 12.9 14.8 18.8 24.8 28.1 28.2 26.2 22.6 15.2 6.3 21.9 2003 8.5 8.8 9.2 13.7 19.5 22.8 26.3 27.2 24.2 21.4 13.4 10.5 18.7 MEAN 7.3 7.9 9.9 15.8 20.2 24.6 26.9 27.2 24.1 18.9 13.6 9.1 19.9 SD 1.14 1.52 1.69 1.42 1.26 1.17 0.78 1.32 1.09 1.51 1.45 1.55 1.33 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 ****** ****** ****** ****** ****** ****** 21.3 21.5 18.1 13.2 8.7 5.4 ****** 1982 1.9 1.7 4.2 11.2 15.5 18.5 21.9 20.7 18.5 12.1 6.9 1.9 11.3 1983 1.3 2.1 4.8 9.4 16.8 19.9 23.2 22.9 18.8 12.0 10.0 3.5 12.1 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 3.1 3.7 2.8 9.9 15.0 19.8 22.5 20.1 19.3 12.0 9.0 4.1 11.8 1986 1.9 3.6 2.8 10.2 14.4 19.2 21.4 21.2 17.8 13.4 8.3 1.3 11.3 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 1.4 2.6 5.7 10.3 14.2 20.3 22.4 21.6 18.5 13.3 8.0 4.5 11.9 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 0.9 2.3 5.3 10.1 14.4 19.6 22.5 22.7 20.3 12.9 ****** 3.2 ****** 1991 2.8 1.8 5.2 10.3 13.1 18.0 22.1 22.7 19.1 15.0 8.0 3.9 11.8 1992 0.7 2.9 3.9 9.8 13.3 ****** 21.5 19.7 17.3 11.8 8.1 4.4 ****** 1993 ****** ****** ****** ****** ****** 19.0 21.6 22.4 19.4 12.3 6.5 3.5 ****** 1994 2.9 0.8 6.2 ****** 15.5 18.7 20.8 22.5 16.7 13.3 10.4 3.5 ****** 1995 4.6 4.2 6.0 11.4 15.0 19.3 23.0 24.0 19.6 12.5 8.8 3.1 12.6 1996 2.2 4.2 5.9 9.5 16.5 19.4 22.3 22.8 20.0 13.5 8.8 5.9 12.6 1997 4.8 3.1 4.6 10.7 15.3 21.2 23.4 24.3 18.6 15.5 8.6 5.0 12.9 1998 2.8 2.4 6.5 12.0 16.1 21.5 22.9 23.5 19.8 13.7 10.8 7.5 13.3 1999 3.5 5.9 6.9 11.0 14.3 19.3 21.5 24.5 19.8 15.3 8.2 5.0 12.9 2000 3.5 3.8 5.6 12.8 15.7 19.0 22.0 24.0 22.0 14.3 7.9 5.6 13.0 2001 2.3 4.0 7.7 11.8 16.2 19.9 22.2 23.1 20.7 13.6 9.3 5.9 13.1 2002 3.7 4.0 7.7 10.9 14.4 19.3 22.9 24.0 21.8 17.3 10.5 2.0 13.2 2003 3.8 5.0 6.0 9.5 13.6 18.1 22.5 22.4 19.8 16.5 8.9 6.3 12.7 MEAN 2.7 3.2 5.4 10.6 15.0 19.4 22.2 22.5 19.3 13.7 8.7 4.3 12.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 ****** ****** ****** ****** ****** ****** 31.6 31.9 27.5 21.8 21.1 17.2 ****** 1982 10.7 9.9 13.2 22.4 23.5 28.1 31.3 29.3 29.4 22.7 15.0 12.9 20.7 1983 11.1 13.3 14.6 22.2 26.7 29.4 33.2 31.0 27.5 24.2 21.5 15.1 22.5 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 11.9 13.4 13.0 22.8 29.2 32.0 31.3 33.7 30.5 23.0 18.8 13.3 22.7 1986 13.7 12.1 11.6 20.3 25.4 30.7 32.7 33.3 31.6 24.8 17.3 11.7 22.1 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 11.2 12.3 16.2 20.9 24.4 31.2 30.4 29.7 27.9 23.9 18.5 15.1 21.8 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 10.2 12.3 15.2 20.6 23.8 30.5 31.5 30.1 29.1 24.2 ****** 13.8 ****** 1991 11.8 10.7 11.6 20.9 24.6 29.4 32.5 31.4 28.0 25.9 18.1 13.9 21.6 1992 10.2 11.8 13.1 18.2 21.9 ****** 29.5 28.7 28.1 23.2 19.4 13.0 ****** 1993 ****** ****** ****** ****** ****** 28.1 30.1 31.5 27.9 22.2 13.9 11.6 ****** 1994 11.6 9.1 13.7 ****** 25.9 26.3 30.4 30.4 27.9 23.2 19.3 12.2 ****** 1995 13.5 13.0 15.9 21.8 27.3 31.1 31.9 31.6 29.6 22.2 20.7 13.2 22.7 1996 10.0 12.2 11.2 17.6 26.3 28.2 32.6 32.4 30.4 23.9 17.7 16.2 21.6 1997 13.2 12.0 13.6 21.7 26.9 30.9 30.8 32.1 27.4 26.5 17.5 14.3 22.2 1998 10.7 11.5 16.3 22.9 26.4 32.0 32.2 33.2 28.2 23.8 20.1 15.3 22.7 1999 13.6 17.0 15.8 20.2 24.9 29.9 31.9 35.1 28.8 25.1 17.0 15.5 22.9 2000 12.4 13.6 14.5 25.2 25.6 29.3 34.0 34.0 29.6 22.6 17.1 14.3 22.7 2001 12.2 15.9 19.4 22.7 27.2 30.4 32.7 33.6 30.0 23.6 19.7 16.2 23.6 2002 13.1 15.0 18.1 18.6 23.3 30.3 33.2 32.3 30.7 27.8 19.9 10.6 22.7 2003 13.2 12.5 12.4 17.9 25.3 27.5 30.2 32.0 28.6 26.3 18.0 14.7 21.5 MEAN 11.9 12.7 14.4 21.0 25.5 29.7 31.7 31.9 28.9 24.0 18.5 14.0 22.0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 ****** ****** ****** ****** ****** ****** 10.3 10.4 9.4 8.6 12.4 11.8 ****** 1982 8.8 8.2 9.0 11.2 8.0 9.6 9.4 8.6 10.9 10.6 8.1 11.0 9.4 1983 9.8 11.2 9.8 12.8 9.9 9.5 10.0 8.1 8.7 12.2 11.5 11.6 10.4 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 8.8 9.7 10.2 12.9 14.2 12.2 8.8 13.6 11.3 11.0 9.8 9.2 11.0 1986 11.8 8.5 8.8 10.1 11.0 11.5 11.3 12.1 13.8 11.4 9.0 10.4 10.8 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 9.8 9.7 10.5 10.6 10.2 10.9 8.0 8.1 9.4 10.6 10.5 10.6 9.9 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 9.3 10.0 9.9 10.5 9.4 10.9 9.0 7.4 8.8 11.3 ****** 10.6 ****** 1991 9.0 8.9 6.4 10.6 11.5 11.4 10.4 8.7 8.9 10.9 10.1 10.0 9.7 1992 9.5 8.9 9.2 8.4 8.6 ****** 8.0 9.0 10.8 11.4 11.3 8.6 ****** 1993 ****** ****** ****** ****** ****** 9.1 8.5 9.1 8.5 9.9 7.4 8.1 ****** 1994 8.7 8.3 7.5 ****** 10.4 7.6 9.6 7.9 11.2 9.9 8.8 8.7 ****** 1995 8.9 8.8 9.9 10.4 12.3 11.8 8.9 7.6 10.0 9.7 11.9 10.1 10.0 1996 7.8 8.0 5.3 8.1 9.8 8.8 10.3 9.6 10.4 10.4 8.9 10.3 9.0 1997 8.4 8.9 9.0 11.0 11.6 9.7 7.4 7.8 8.8 11.0 8.9 9.3 9.3 1998 7.9 9.1 9.8 10.9 10.3 10.5 9.3 9.7 8.4 10.1 9.3 7.8 9.4 1999 10.1 11.1 8.9 9.2 10.6 10.6 10.4 10.6 9.0 9.8 8.8 10.5 10.0 2000 8.9 9.8 8.9 12.4 9.9 10.3 12.0 10.0 7.6 8.3 9.2 8.7 9.7 2001 9.9 11.9 11.7 10.9 11.0 10.5 10.5 10.5 9.3 10.0 10.4 10.3 10.6 2002 9.4 11.0 10.4 7.7 8.9 11.0 10.3 8.3 8.9 10.5 9.4 8.6 9.5 2003 9.4 7.5 6.4 8.4 11.7 9.4 7.7 9.6 8.8 9.8 9.1 8.4 8.8 MEAN 9.2 9.4 9.0 10.4 10.5 10.3 9.5 9.3 9.6 10.4 9.7 9.7 9.8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 4.71 4.73 4.84 7.61 10.59 13.68 13.60 13.78 13.61 8.80 7.34 5.32 9.05 1986 4.55 5.03 4.63 8.11 10.59 12.61 15.48 15.49 13.24 9.96 6.92 4.26 9.24 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 4.57 4.63 5.78 7.96 10.20 15.38 17.25 16.32 13.67 10.12 7.31 5.60 9.90 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 4.28 4.35 5.39 7.42 9.84 12.92 15.48 14.80 14.56 9.72 ****** 5.02 ****** 1991 4.67 4.37 5.66 7.95 9.64 12.28 15.80 16.12 13.38 10.75 6.80 4.84 9.36 1992 3.87 4.28 4.94 7.15 9.65 ****** 15.24 14.16 12.20 9.26 6.97 5.27 ****** 1993 ****** ****** ****** ****** ****** 13.51 15.20 15.85 14.51 8.75 6.04 5.13 ****** 1994 4.64 4.21 5.71 ****** 10.61 12.96 13.14 15.11 11.30 9.63 7.57 4.64 ****** 1995 4.93 4.92 5.67 7.90 10.20 12.50 15.16 16.22 13.47 9.09 6.96 4.52 9.30 1996 4.30 4.75 5.34 6.98 10.96 12.51 15.09 15.19 13.39 9.05 6.82 5.44 9.15 1997 5.16 4.31 4.96 7.35 10.51 15.07 16.37 16.85 12.77 10.72 6.67 5.26 9.67 1998 4.55 4.41 5.79 8.41 10.69 14.35 15.67 16.43 14.09 9.99 8.06 6.37 9.90 1999 4.65 5.13 5.85 7.53 9.67 11.20 14.28 17.32 13.39 10.86 6.51 5.07 9.29 2000 4.51 4.73 5.50 8.59 11.17 13.34 13.47 15.71 14.99 10.06 6.53 5.74 9.53 2001 4.27 4.56 6.11 8.01 10.79 12.45 14.37 15.50 14.23 9.54 7.07 5.51 9.37 2002 4.80 4.96 6.28 7.96 9.89 12.60 16.39 16.17 15.18 12.04 7.61 3.98 9.82 2003 4.57 4.92 5.62 6.82 9.11 12.72 14.88 15.30 13.78 11.35 7.11 5.68 9.32 MEAN 4.57 4.65 5.51 7.72 10.26 13.14 15.12 15.67 13.64 9.99 7.02 5.16 9.37 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 5.98 6.25 5.74 8.61 13.10 15.04 14.21 15.32 14.42 9.80 8.90 6.51 10.32 1986 6.00 5.93 5.19 8.56 11.20 13.33 15.77 15.78 13.11 11.11 7.90 4.83 9.89 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 5.47 5.44 6.95 9.45 11.01 17.54 17.73 16.25 14.28 10.54 8.45 7.12 10.85 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 5.54 5.96 7.15 8.67 9.88 13.11 16.97 15.04 14.84 11.57 ****** 5.95 ****** 1991 5.59 4.96 6.22 9.14 10.32 13.48 18.11 18.66 15.53 12.90 8.20 6.00 10.76 1992 4.73 5.08 5.79 8.47 10.85 ****** 15.98 14.70 13.00 10.03 8.53 6.41 ****** 1993 ****** ****** ****** ****** ****** 13.77 15.97 16.45 15.37 8.97 6.65 6.02 ****** 1994 5.75 4.70 6.37 ****** 11.65 13.71 13.62 15.38 12.22 10.59 9.34 5.60 ****** 1995 5.99 5.90 7.03 9.68 10.63 12.18 14.17 17.34 13.81 9.87 9.23 5.91 10.15 1996 5.35 5.69 5.94 8.33 11.79 11.47 15.14 14.69 14.24 9.46 7.23 6.20 9.63 1997 5.75 4.87 5.64 8.46 11.02 13.92 15.96 16.16 12.42 11.74 7.79 6.62 10.03 1998 5.42 5.18 6.98 10.03 10.79 13.93 14.38 16.49 13.82 9.98 8.83 7.06 10.24 1999 5.07 5.83 6.40 7.51 8.28 9.50 11.27 14.99 11.14 9.77 6.19 5.65 8.47 2000 4.25 4.87 5.18 9.32 9.45 11.03 11.69 13.49 12.07 9.12 6.07 6.48 8.59 2001 4.58 4.74 6.32 7.81 9.25 9.92 11.16 12.41 11.59 8.29 7.15 6.28 8.29 2002 4.97 4.94 6.51 7.78 8.18 9.30 11.48 13.35 11.15 9.22 7.53 4.29 8.22 2003 4.94 4.83 5.58 7.47 7.57 9.69 10.53 10.91 11.06 10.41 6.65 5.62 7.94 MEAN 5.34 5.33 6.19 8.62 10.32 12.56 14.37 15.15 13.19 10.20 7.80 6.04 9.59 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 5.82 5.98 5.85 8.71 13.15 14.86 14.47 15.60 15.79 10.16 8.79 6.21 10.45 1986 5.91 6.18 5.24 8.60 11.24 13.19 16.41 17.11 15.45 11.66 7.99 5.25 10.35 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 5.66 5.57 7.10 9.20 11.06 16.68 17.96 17.22 15.56 11.63 8.58 6.90 11.09 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 5.20 5.86 6.87 8.84 10.13 13.70 16.81 16.58 15.89 11.63 ****** 5.99 ****** 1991 5.65 5.37 6.33 8.97 10.38 12.91 17.59 17.18 14.52 11.67 7.98 5.85 10.37 1992 4.64 5.07 5.57 8.40 10.61 ****** 15.50 14.95 13.10 9.42 7.39 6.12 ****** 1993 ****** ****** ****** ****** ****** 13.83 15.29 16.84 14.70 9.64 6.75 6.04 ****** 1994 5.96 4.91 6.59 ****** 11.99 13.55 14.11 16.11 13.38 10.40 8.86 5.47 ****** 1995 5.79 5.78 7.07 9.50 10.69 11.89 15.33 17.16 13.86 10.26 8.59 5.23 10.10 1996 5.13 5.29 5.76 8.08 12.35 13.19 17.22 16.20 15.77 11.48 8.61 6.98 10.51 1997 6.36 5.25 6.12 8.95 11.44 15.14 16.93 18.11 14.59 12.82 7.71 6.05 10.79 1998 5.52 5.36 7.15 10.53 11.39 13.98 14.46 17.84 15.81 11.05 9.09 7.04 10.77 1999 5.46 6.36 6.82 8.54 10.40 11.74 14.36 18.29 13.47 12.30 7.25 6.27 10.11 2000 5.09 5.88 6.26 10.64 12.24 13.58 15.20 16.56 15.63 10.88 7.20 6.64 10.48 2001 5.25 5.61 7.16 9.01 10.85 11.71 13.21 15.20 13.95 10.72 8.32 6.52 9.79 2002 5.72 5.85 7.51 8.55 9.97 13.19 14.44 14.67 15.25 13.02 8.71 4.86 10.14 2003 5.52 5.62 5.97 8.38 10.32 12.74 13.42 14.57 14.86 13.08 8.07 6.35 9.91 MEAN 5.55 5.62 6.47 9.00 11.14 13.50 15.46 16.49 14.80 11.29 8.12 6.11 10.29 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 1981 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 19.0 1 19.0 7 9.0 24 9.0 31 4.5 16 1.0 30 ***** 1982 -2.5 21 -1.8 19 0.6 27 5.0 4 11.5 29 15.0 3 17.0 1 17.5 17 14.0 21 3.5 26 2.0 16 -1.5 9 -2.5 1983 -4.0 27 -1.5 3 -0.5 1 4.0 2 11.5 1 16.5 1 18.5 1 16.5 28 13.0 16 8.0 13 2.0 27 -1.0 25 -4.0 1984 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1985 -2.5 25 -5.5 24 -3.0 12 4.5 18 8.5 5 17.0 4 20.0 24 15.0 30 14.0 24 7.5 24 5.0 1 -1.0 31 -5.5 1986 -3.0 24 -1.0 3 -0.5 17 5.5 2 10.0 7 15.0 24 16.0 23 16.0 6 11.0 30 8.5 17 1.0 16 -3.5 12 -3.5 1987 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1988 -3.0 5 -3.0 7 1.0 7 3.0 3 10.0 3 17.0 1 18.5 27 17.5 26 13.0 22 7.0 23 1.5 15 0.0 25 -3.0 1989 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1990 -1.5 10 -1.5 8 -1.5 18 5.5 6 11.5 1 14.5 7 19.0 10 19.0 17 18.0 5 6.5 16 ***** ** -2.0 27 ***** 1991 -1.0 1 -3.0 13 -0.5 12 5.0 14 8.5 7 13.5 6 18.0 15 20.0 27 11.5 28 11.5 14 3.0 17 -0.5 17 -3.0 1992 -3.0 26 -2.0 28 -1.5 1 6.0 4 5.5 6 ***** ** 18.5 12 16.0 30 13.0 1 7.5 8 1.5 27 -0.5 29 ***** 1993 ***** ** ***** ** ***** ** ***** ** ***** ** 15.5 6 19.0 24 18.5 25 13.5 28 7.0 9 1.5 17 -1.5 7 ***** 1994 -2.5 22 -2.5 11 0.5 2 ***** ** 11.0 8 12.5 6 17.0 1 20.0 5 13.5 22 8.5 14 5.5 11 -2.5 8 ***** 1995 0.5 19 -2.0 26 1.5 1 6.5 8 11.5 12 14.5 1 20.0 25 21.5 28 13.0 23 6.0 18 2.5 28 -1.5 19 -2.0 1996 -2.0 16 -2.5 4 1.5 20 3.0 6 12.0 3 17.0 7 18.0 16 18.5 30 14.5 21 8.5 20 3.0 19 1.5 2 -2.5 1997 -2.0 29 -3.0 2 -0.5 10 2.0 12 10.0 6 15.5 5 20.5 6 21.0 30 14.5 16 13.0 26 4.5 30 0.0 29 -3.0 1998 -2.0 17 -0.5 11 -0.5 1 6.0 2 9.0 3 17.0 1 18.0 26 20.5 31 16.0 13 8.5 10 7.0 27 3.5 6 -2.0 1999 -2.5 3 1.0 2 1.0 19 5.0 11 9.0 22 15.5 6 18.0 15 21.5 17 13.0 29 8.0 26 2.5 30 0.0 1 -2.5 2000 -3.5 15 -1.5 9 -1.0 16 6.5 2 10.5 11 12.5 14 18.5 19 20.0 12 16.0 26 8.5 16 3.0 12 0.0 29 -3.5 2001 -4.5 29 -1.5 1 0.0 12 7.5 2 12.5 7 14.0 2 19.5 20 18.0 15 14.5 22 7.0 28 0.5 20 -0.5 22 -4.5 2002 -1.0 13 -0.5 17 0.0 7 6.0 14 8.5 2 14.5 8 17.0 2 18.5 14 15.5 28 10.5 23 3.5 30 -1.5 4 -1.5 2003 -1.5 27 -2.0 18 -1.5 3 3.5 19 5.0 2 12.0 7 19.0 5 20.0 1 13.5 27 12.5 21 2.5 23 -1.5 13 -2.0 LOW. -4.5 29 -5.5 24 -3.0 12 2.0 12 5.0 2 12.0 7 16.0 23 15.0 30 9.0 24 3.5 26 0.5 20 -3.5 12 -5.5 YEAR 2001 1985 1985 1997 2003 2003 1986 1985 1981 1982 2001 1986 1985 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 1981 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 36.5 29 37.0 4 36.0 17 27.0 6 36.0 13 27.0 15 ***** 1982 18.0 8 23.0 4 27.0 31 36.0 24 30.0 14 32.0 9 34.0 13 33.0 14 34.0 11 32.0 18 27.0 6 18.5 31 36.0 1983 20.5 1 24.5 19 24.0 27 31.5 18 34.0 4 37.0 15 38.0 14 38.5 14 32.0 9 30.0 11 27.0 1 23.0 8 38.5 1984 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1985 21.0 21 27.0 14 28.5 21 33.0 12 37.0 20 36.5 19 35.0 5 38.0 6 36.0 1 31.5 20 25.0 9 19.0 1 38.0 1986 21.5 9 21.0 27 17.0 28 33.5 15 33.0 22 34.0 12 36.5 10 36.0 16 35.0 2 34.0 4 27.0 8 20.0 21 36.5 1987 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1988 15.0 8 24.5 2 28.0 3 30.0 22 32.0 27 38.5 14 32.5 4 36.0 11 36.5 9 29.5 20 30.8 8 22.5 11 38.5 1989 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1990 14.5 21 22.5 17 26.5 2 29.5 12 29.0 29 40.0 3 34.5 16 32.5 18 35.5 14 32.5 23 ***** ** 25.5 5 ***** 1991 20.0 31 21.0 18 21.5 28 34.5 17 31.0 2 35.0 30 36.5 4 36.5 1 32.0 4 34.5 26 23.5 1 28.5 9 36.5 1992 16.5 14 17.5 6 24.5 30 30.0 21 31.5 29 ***** ** 33.0 17 31.5 22 31.0 3 31.5 13 29.5 23 19.5 15 ***** 1993 ***** ** ***** ** ***** ** ***** ** ***** ** 34.0 28 36.5 24 34.5 13 33.0 3 31.0 1 20.5 9 21.0 23 ***** 1994 21.5 30 18.5 27 25.5 29 ***** ** 31.5 9 32.0 1 33.0 23 34.0 17 30.0 12 30.5 19 25.5 13 21.0 14 ***** 1995 23.0 29 19.5 11 25.0 31 30.0 2 32.5 23 45.0 29 36.5 16 34.5 12 34.5 6 34.5 3 29.5 10 20.0 22 45.0 1996 14.0 7 34.5 9 17.0 29 26.0 18 35.0 17 34.5 29 36.5 19 35.5 7 38.0 29 32.0 23 21.5 5 25.0 25 38.0 1997 23.5 6 19.5 17 24.0 23 33.0 24 33.0 4 40.5 12 35.5 31 34.5 3 35.5 2 34.5 13 27.0 5 20.5 9 40.5 1998 16.0 30 21.5 7 27.0 13 31.0 14 33.0 21 37.5 23 35.5 19 35.5 5 34.5 1 32.0 17 26.5 16 24.5 8 37.5 1999 19.5 11 26.5 21 23.0 21 31.0 30 30.5 27 35.0 14 35.0 20 38.5 24 33.5 2 29.5 11 24.5 25 23.5 29 38.5 2000 24.0 19 22.0 23 22.0 19 37.5 10 34.5 3 33.0 5 37.5 29 38.0 1 34.0 7 26.0 10 21.5 1 18.5 18 38.0 2001 20.0 1 25.5 21 33.5 29 34.0 25 37.5 12 35.5 23 37.5 30 38.0 3 33.5 9 34.0 6 27.5 15 28.5 20 38.0 2002 18.5 2 24.0 25 30.0 27 30.0 7 36.5 28 35.0 1 37.0 18 37.0 3 33.0 17 38.0 3 28.0 12 16.5 8 38.0 2003 25.0 7 24.5 3 29.0 19 36.0 26 32.0 30 32.0 18 34.0 8 38.5 12 34.0 6 33.5 29 24.0 2 24.0 19 38.5 HIG. 25.0 7 34.5 9 33.5 29 37.5 10 37.5 12 45.0 29 38.0 14 38.5 14 38.0 29 38.0 3 36.0 13 28.5 9 45.0 YEAR 2003 1996 2001 2000 2001 1995 1983 1983 1996 2002 1981 1991 1995 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 1981 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 18.0 20 18.0 15 80.0 22 52.0 17 26.0 6 20.0 19 ***** 1982 21.0 10 25.0 5 33.5 25 5.0 8 6.5 3 33.0 28 6.0 7 18.0 1 2.0 13 32.0 6 17.0 9 6.5 6 33.5 1983 22.5 25 17.5 22 18.0 6 2.2 23 6.5 30 3.6 28 5.3 29 7.0 26 11.4 15 66.5 5 13.0 24 29.5 15 66.5 1984 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1985 10.7 23 32.0 6 9.6 3 10.0 16 1.7 3 1.3 27 2.0 2 7.3 24 31.0 20 65.0 11 9.2 27 17.3 20 65.0 1986 9.3 20 11.2 16 19.4 21 14.0 20 4.0 16 2.2 20 2.9 21 10.8 4 45.0 29 39.0 7 52.9 11 20.8 31 52.9 1987 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1988 28.2 29 9.7 3 19.0 5 19.3 2 32.5 2 23.4 20 30.5 9 18.1 30 21.0 21 14.5 15 51.9 29 19.1 13 51.9 1989 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1990 11.5 25 4.2 4 44.6 16 19.6 2 14.2 1 9.7 22 3.2 1 6.5 26 18.7 2 23.5 14 ***** ** 22.0 19 ***** 1991 27.6 6 32.9 5 5.7 26 4.6 13 21.6 11 2.7 5 33.5 14 22.7 28 4.3 9 11.5 9 13.2 6 22.8 3 33.5 1992 10.5 8 22.0 9 33.5 24 13.1 27 30.8 13 ***** ** 4.5 1 19.5 30 19.8 28 14.5 15 38.1 26 22.0 19 ***** 1993 ***** ** ***** ** ***** ** ***** ** ***** ** 20.1 21 5.4 11 11.6 16 13.3 22 62.8 29 48.3 14 30.1 6 ***** 1994 35.3 21 12.3 14 10.0 27 ***** ** 13.8 6 42.5 5 0.0 ** 5.8 30 15.6 5 43.1 15 12.4 26 17.4 6 ***** 1995 6.5 18 31.1 24 18.3 18 24.2 24 3.7 4 6.5 11 13.6 6 3.1 1 83.2 21 25.3 13 67.3 26 9.2 9 83.2 1996 6.1 8 28.8 2 6.4 19 20.0 14 7.5 12 10.7 10 0.0 ** 4.3 13 28.4 20 44.5 28 45.2 11 23.8 15 45.2 1997 16.3 29 26.7 1 23.8 20 11.2 12 19.6 5 26.1 3 13.4 7 3.2 8 29.5 13 53.4 31 60.4 6 49.4 11 60.4 1998 16.0 14 17.9 26 10.1 26 43.0 24 19.5 30 2.0 26 3.4 24 4.5 22 18.1 26 38.7 7 22.4 11 4.8 2 43.0 1999 22.7 1 8.2 21 16.7 17 6.6 6 15.5 21 2.9 29 16.5 26 4.0 30 77.5 23 47.9 13 15.3 27 19.0 16 77.5 2000 13.5 7 13.8 26 19.8 15 0.0 ** 6.6 9 15.5 13 2.4 9 4.6 5 14.0 2 26.0 1 7.5 10 10.0 2 26.0 2001 6.7 24 16.0 22 16.7 10 3.2 13 14.0 25 2.0 10 30.0 19 6.5 27 14.0 1 26.8 2 13.0 1 19.5 21 30.0 2002 17.1 9 30.5 16 34.5 10 25.5 22 6.5 13 4.5 22 2.0 22 6.5 13 2.2 15 80.0 22 31.5 7 9.5 13 80.0 2003 4.5 17 17.2 12 26.0 8 11.5 14 53.0 24 59.0 6 3.8 25 23.5 21 21.7 8 53.0 5 76.0 22 34.5 11 76.0 HIG. 35.3 21 32.9 5 44.6 16 43.0 24 53.0 24 59.0 6 33.5 14 23.5 21 83.2 21 80.0 22 76.0 22 49.4 11 83.2 YEAR 1994 1991 1990 1998 2003 2003 1991 2003 1995 2002 2003 1997 1995 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1981 ****** ****** ****** ****** ****** ****** 41.0 37.0 114.5 99.0 79.0 66.0 ****** ***** ***** 44.1 55.9 1982 110.0 67.0 94.0 9.0 14.5 38.0 17.0 48.5 4.0 66.0 88.8 13.0 569.8 47.6 10.8 12.2 29.4 1983 59.3 23.0 47.0 7.5 21.2 18.4 10.9 16.3 44.4 86.2 37.3 97.6 469.1 27.6 10.0 15.3 47.1 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1985 47.4 111.5 34.6 16.6 3.0 3.2 4.9 11.1 46.2 126.4 30.7 77.1 512.7 37.7 4.4 12.1 45.7 1986 39.2 55.5 59.8 22.8 9.9 4.2 5.0 27.1 92.7 72.7 97.5 82.8 569.2 27.1 6.5 21.9 44.4 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1988 109.7 28.6 45.2 55.4 57.0 36.1 99.0 71.8 45.9 22.8 107.0 58.9 737.4 24.9 20.1 29.4 25.6 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1990 38.5 17.2 91.1 53.8 27.4 20.5 7.0 11.4 36.3 47.8 ****** 80.3 ****** 34.0 23.6 12.7 29.7 1991 48.0 83.9 25.5 17.7 40.2 3.2 38.5 23.7 5.3 17.6 44.2 77.8 425.6 37.0 14.4 15.9 32.8 1992 49.2 71.0 109.6 60.4 79.8 ****** 13.0 47.3 43.5 34.5 104.7 66.2 ****** 33.8 20.6 15.3 30.2 1993 ****** ****** ****** ****** ****** 41.8 12.0 20.5 57.7 100.5 105.8 45.6 ****** ***** 10.9 23.5 65.6 1994 69.9 58.4 42.1 ****** 26.2 99.1 0.0 12.3 48.6 125.6 39.2 86.6 ****** 28.0 20.6 10.0 41.3 1995 17.9 38.0 37.0 75.8 4.8 19.3 16.9 3.3 157.0 104.5 122.6 46.7 643.8 14.4 15.5 27.5 42.5 1996 21.2 88.5 30.2 54.1 14.4 24.3 0.0 8.1 63.0 181.9 90.3 29.4 605.4 23.1 15.3 11.7 49.8 1997 51.7 59.2 84.1 31.6 26.7 32.0 42.6 7.9 72.7 116.8 130.6 122.7 778.6 25.0 11.6 15.8 47.5 1998 88.7 86.8 36.4 91.3 32.4 2.8 3.4 13.6 73.1 74.1 32.3 17.5 552.4 38.4 22.9 16.3 22.4 1999 65.0 16.3 43.1 24.7 46.4 4.1 29.2 7.1 117.4 91.7 76.4 36.1 557.5 22.3 13.5 27.6 36.6 2000 60.7 63.1 57.4 0.0 22.1 28.0 2.4 10.3 37.0 85.3 10.9 29.1 406.3 44.6 12.3 12.2 30.8 2001 19.2 46.3 48.9 8.8 19.2 3.0 37.4 19.5 22.1 75.1 55.3 42.0 396.8 28.8 7.8 19.9 43.4 2002 61.3 58.0 94.0 81.0 19.0 9.0 4.5 17.5 3.4 128.0 125.2 53.6 654.5 32.6 16.7 3.9 46.9 2003 10.4 66.7 76.7 45.0 74.8 93.0 10.0 33.2 40.3 75.7 270.7 84.8 881.3 17.5 24.1 9.5 48.9 MEAN 53.7 57.7 58.7 38.6 29.9 26.7 19.7 22.4 56.3 86.6 86.8 60.7 597.8 28.5 15.9 16.4 39.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 *** *** *** *** *** *** 5 5 7 4 5 6 *** 1982 11 6 6 2 5 5 5 7 2 6 15 4 74 1983 9 5 8 6 10 10 6 10 13 5 7 6 95 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 9 11 12 3 4 4 6 5 8 6 9 11 88 1986 8 13 10 8 9 3 5 5 5 8 10 12 96 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 10 12 9 9 7 5 15 12 5 5 9 6 104 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 9 7 9 8 5 6 3 7 7 9 *** 10 *** 1991 6 13 11 9 6 2 5 2 4 7 7 8 80 1992 11 9 15 12 13 *** 5 10 7 5 7 12 *** 1993 *** *** *** *** *** 10 5 5 13 4 18 13 *** 1994 12 13 14 *** 6 11 0 5 7 12 8 10 *** 1995 5 6 8 12 3 5 5 2 8 12 5 11 82 1996 8 11 15 15 6 8 0 2 8 11 7 4 95 1997 10 13 13 6 4 4 13 5 10 7 7 10 102 1998 12 11 11 10 7 2 1 9 10 10 7 8 98 1999 8 3 10 7 10 3 6 5 9 8 12 6 87 2000 8 13 15 0 9 4 1 6 13 12 7 11 99 2001 9 6 9 6 6 3 6 6 4 7 8 7 77 2002 8 5 12 13 7 4 4 8 3 6 11 19 100 2003 5 13 13 13 5 9 7 6 7 4 11 9 102 MEAN 9 9 11 8 7 5 5 6 8 7 9 9 93 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 1981 *** *** *** *** *** *** 5 5 7 4 5 6 *** 1982 11 6 6 2 5 3 4 6 2 6 11 3 65 1983 9 3 8 4 7 7 3 5 10 4 4 6 70 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 7 11 7 2 1 1 2 4 7 5 7 9 63 1986 6 10 8 4 4 2 2 5 4 6 7 10 68 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 9 9 8 6 5 3 10 10 5 3 6 6 80 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 7 6 7 7 4 4 3 3 4 5 *** 5 *** 1991 5 11 7 5 5 1 3 2 1 3 7 7 57 1992 9 8 12 11 9 *** 3 5 5 4 3 7 *** 1993 *** *** *** *** *** 6 3 4 10 3 13 5 *** 1994 8 10 9 *** 4 9 0 4 7 9 5 7 *** 1995 4 4 6 9 1 4 3 1 8 9 5 8 62 1996 5 9 10 11 4 7 0 2 6 9 5 3 71 1997 7 9 8 4 2 3 8 4 10 5 7 7 74 1998 11 10 7 8 5 1 1 6 10 7 4 5 75 1999 7 2 9 6 7 1 4 2 5 4 11 5 63 2000 7 10 10 0 7 3 1 4 7 8 1 8 66 2001 7 6 9 4 3 1 4 6 3 5 7 5 60 2002 8 4 9 10 6 2 2 6 1 5 9 9 71 2003 4 9 10 10 3 7 5 5 5 4 10 9 81 MEAN 7 8 8 6 5 4 3 4 6 5 7 7 70 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 1981 *** *** *** *** *** *** 1 1 2 3 4 3 *** 1982 4 3 3 0 0 1 0 3 0 2 4 0 20 1983 2 1 1 0 0 0 0 0 1 2 2 4 13 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 2 4 0 1 0 0 0 0 1 3 0 3 14 1986 0 1 3 1 0 0 0 1 4 2 2 4 18 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 5 0 1 2 2 2 3 3 1 1 3 3 26 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 1 0 3 3 1 0 0 0 2 1 *** 4 *** 1991 2 3 0 0 1 0 1 1 0 1 1 4 14 1992 1 3 3 2 3 *** 0 2 1 2 3 2 *** 1993 *** *** *** *** *** 1 0 1 1 2 4 1 *** 1994 2 2 1 *** 1 4 0 0 2 4 1 5 *** 1995 0 1 1 3 0 0 1 0 3 4 3 0 16 1996 0 3 0 2 0 1 0 0 2 7 3 1 19 1997 2 1 3 1 1 1 2 0 2 3 4 5 25 1998 5 5 1 3 1 0 0 0 3 3 1 0 22 1999 2 0 2 0 2 0 1 0 2 2 4 1 16 2000 3 2 3 0 0 1 0 0 2 3 0 1 15 2001 0 2 2 0 1 0 1 0 1 3 3 2 15 2002 3 3 3 2 0 0 0 0 0 3 6 0 20 2003 0 2 2 2 2 2 0 1 2 2 5 3 23 MEAN 2 2 2 1 1 1 1 1 2 3 3 2 21 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 91 87 90 85 84 75 69 77 84 91 94 92 85 1986 88 92 90 91 83 71 78 81 86 90 93 89 86 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 91 90 86 84 82 80 87 86 89 91 90 89 87 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 92 86 84 78 79 74 79 77 87 89 *** 87 *** 1991 87 87 90 86 83 80 83 83 84 87 88 87 85 1992 86 83 85 85 87 *** 83 85 86 88 87 88 *** 1993 *** *** *** *** *** 84 83 83 92 86 88 90 *** 1994 87 85 87 *** 84 86 75 83 86 88 88 85 *** 1995 84 88 89 86 82 74 78 80 84 87 87 87 84 1996 90 86 87 86 82 78 79 81 84 84 90 87 85 1997 89 86 86 83 84 84 84 84 88 86 91 89 86 1998 91 90 88 87 82 75 79 84 90 88 91 92 86 1999 89 85 88 87 84 71 81 81 87 90 88 87 85 2000 84 87 87 85 88 83 73 78 85 92 90 92 85 2001 88 84 85 86 85 76 77 79 84 87 87 86 84 2002 89 86 87 91 86 78 85 80 85 87 90 86 86 2003 87 85 90 86 83 88 82 84 88 88 91 89 87 MEAN 88 87 87 86 84 79 80 82 86 88 90 88 85 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 80 77 72 58 58 57 56 54 59 63 72 74 65 1986 70 76 67 66 64 53 56 53 52 64 71 64 63 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 73 71 71 68 64 65 69 66 64 61 68 72 68 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 78 72 69 66 60 53 63 59 64 68 *** 66 *** 1991 70 69 77 67 61 56 64 69 69 66 68 66 67 1992 66 68 67 73 73 *** 66 63 60 62 69 73 *** 1993 *** *** *** *** *** 71 64 60 70 58 72 75 *** 1994 73 71 75 *** 62 70 53 60 55 65 73 67 *** 1995 69 69 70 69 53 49 52 63 57 64 65 70 63 1996 74 72 77 74 61 52 53 52 57 56 61 62 63 1997 67 61 66 58 55 54 61 57 60 59 68 71 61 1998 73 70 69 64 56 51 52 56 63 60 67 71 63 1999 58 59 63 59 49 39 41 47 49 54 58 59 53 2000 57 56 59 56 55 48 39 44 49 58 53 69 54 2001 56 48 55 55 49 40 39 42 47 51 56 63 50 2002 60 53 58 67 52 39 39 47 43 43 55 60 51 2003 59 60 67 68 41 47 42 39 48 53 56 58 53 MEAN 68 66 68 65 57 53 53 55 57 59 65 67 61 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 90 84 83 73 72 68 67 65 79 80 91 88 78 1986 89 89 79 79 77 65 68 70 71 85 87 87 79 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 87 82 82 78 74 76 80 84 82 84 85 86 82 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 90 87 81 78 72 67 71 75 77 85 *** 84 *** 1991 85 83 86 77 71 65 69 72 78 76 79 80 77 1992 80 77 76 83 80 *** 75 76 75 79 77 86 *** 1993 *** *** *** *** *** 74 71 73 79 76 85 86 *** 1994 86 81 81 *** 76 77 67 75 78 83 84 81 *** 1995 79 77 80 79 64 54 65 72 69 83 86 83 74 1996 84 78 81 82 74 73 71 67 76 84 85 83 78 1997 83 79 83 75 66 69 76 72 81 86 86 87 79 1998 89 87 81 79 70 60 60 71 82 85 89 86 78 1999 81 77 78 74 70 59 62 67 72 83 86 87 75 2000 77 85 81 74 77 68 60 64 75 85 81 89 76 2001 81 73 74 69 67 56 57 62 68 81 85 83 71 2002 84 81 83 81 71 64 55 61 70 80 87 86 75 2003 81 82 84 84 66 70 63 61 74 84 86 83 77 MEAN 84 81 81 78 72 67 67 70 76 82 85 85 77 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 1981 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 1 0 0 0 0 0 0 0 0 0 0 0 1 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 0 1 0 0 0 0 0 0 0 0 0 0 1 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 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 *** 1993 *** *** *** *** *** 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 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 2001 1 0 0 0 0 0 0 0 0 0 0 0 1 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 1981 *** *** *** *** *** *** 19 23 5 0 0 0 *** 1982 0 0 0 0 0 4 26 19 9 0 0 0 58 1983 0 0 0 0 1 13 29 25 9 0 0 0 77 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 0 0 0 0 2 10 29 15 10 1 0 0 67 1986 0 0 0 0 0 7 19 17 2 0 0 0 45 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 0 0 0 0 0 13 27 23 5 0 0 0 68 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 0 0 0 0 0 14 23 29 15 1 *** 0 *** 1991 0 0 0 0 0 4 26 28 10 0 0 0 68 1992 0 0 0 0 0 *** 18 7 3 0 0 0 *** 1993 *** *** *** *** *** 4 23 25 11 0 0 0 *** 1994 0 0 0 *** 0 4 14 24 3 0 0 0 *** 1995 0 0 0 0 0 8 30 31 11 0 0 0 80 1996 0 0 0 0 0 5 24 26 12 0 0 0 67 1997 0 0 0 0 3 19 30 31 6 0 0 0 89 1998 0 0 0 0 1 20 28 30 10 0 0 0 89 1999 0 0 0 0 0 9 19 31 13 0 0 0 72 2000 0 0 0 0 0 6 21 28 23 0 0 0 78 2001 0 0 0 0 0 11 27 25 13 0 0 0 76 2002 0 0 0 0 0 9 28 30 23 6 0 0 96 2003 0 0 0 0 0 4 26 28 15 1 0 0 74 MEAN 0 0 0 0 0 9 24 25 10 0 0 0 68 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 1981 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 0 0 0 0 0 0 0 0 0 0 0 0 0 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 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 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 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 *** 1993 *** *** *** *** *** 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 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 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 1981 *** *** *** *** *** *** 22 27 13 0 3 0 *** 1982 0 0 0 3 1 8 25 13 13 2 0 0 65 1983 0 0 0 3 6 16 28 19 6 1 0 0 79 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 0 0 0 3 16 26 23 27 17 1 0 0 113 1986 0 0 0 1 3 23 28 29 26 3 0 0 113 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 0 0 0 1 3 21 21 18 6 0 1 0 71 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 0 0 0 0 0 18 26 18 9 1 *** 0 *** 1991 0 0 0 3 4 13 26 27 4 1 0 0 78 1992 0 0 0 1 2 *** 17 13 8 2 0 0 *** 1993 *** *** *** *** *** 12 17 27 7 1 0 0 *** 1994 0 0 0 *** 5 5 22 19 2 1 0 0 *** 1995 0 0 0 1 7 17 26 24 18 1 0 0 94 1996 0 1 0 0 7 8 29 28 17 1 0 0 91 1997 0 0 0 1 4 21 20 27 5 3 0 0 81 1998 0 0 0 3 4 23 27 30 6 2 0 0 95 1999 0 0 0 2 1 17 27 31 14 0 0 0 92 2000 0 0 0 4 4 16 31 30 10 0 0 0 95 2001 0 0 1 2 7 18 28 30 19 1 0 0 106 2002 0 0 1 1 4 21 29 27 20 8 0 0 111 2003 0 0 0 3 2 3 18 28 9 3 0 0 66 MEAN 0 0 0 2 4 16 25 25 11 2 0 0 85 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 1981 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 0 0 0 0 0 0 0 0 0 0 0 0 0 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 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 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 0 0 0 0 0 1 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 *** 1993 *** *** *** *** *** 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 1 0 0 0 0 0 0 1 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 1 0 0 0 0 0 0 1 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 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 1981 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1982 0 0 0 0 0 0 0 0 0 0 0 0 0 1983 0 0 0 0 0 0 0 0 0 0 0 0 0 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 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 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 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 *** 1993 *** *** *** *** *** 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 1 0 0 0 0 0 0 1 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 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 24 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 -------------- 1981 *** *** *** *** *** *** 0 0 0 0 0 0 *** ** ** ** ** 1982 9 6 0 0 0 0 0 0 0 0 0 10 25 12 9 2 20 1983 11 7 1 0 0 0 0 0 0 0 0 7 26 12 17 3 1 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1985 6 4 10 0 0 0 0 0 0 0 0 3 23 12 29 3 15 1986 10 2 6 0 0 0 0 0 0 0 0 8 26 12 12 3 18 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1988 11 2 0 0 0 0 0 0 0 0 0 1 14 12 25 2 8 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1990 13 7 3 0 0 0 0 0 0 0 *** 8 *** 12 20 3 21 1991 6 8 2 0 0 0 0 0 0 0 0 6 22 12 17 3 13 1992 15 5 4 0 0 *** 0 0 0 0 0 3 *** 12 29 3 12 1993 *** *** *** *** *** 0 0 0 0 0 0 6 *** 12 1 12 21 1994 5 13 0 *** 0 0 0 0 0 0 0 6 *** 12 7 2 23 1995 0 2 0 0 0 0 0 0 0 0 0 5 7 12 11 2 27 1996 8 1 0 0 0 0 0 0 0 0 0 0 9 1 11 2 4 1997 2 6 3 0 0 0 0 0 0 0 0 1 12 12 29 3 11 1998 4 7 2 0 0 0 0 0 0 0 0 0 13 1 4 3 3 1999 6 0 0 0 0 0 0 0 0 0 0 1 7 12 1 1 27 2000 5 3 1 0 0 0 0 0 0 0 0 1 10 12 29 3 16 2001 7 2 1 0 0 0 0 0 0 0 0 1 11 12 22 3 12 2002 5 1 2 0 0 0 0 0 0 0 0 10 18 12 4 3 11 2003 4 2 1 0 0 0 0 0 0 0 0 2 9 12 13 3 3 MEAN 7 4 2 0 0 0 0 0 0 0 0 4 17 12 1 3 21 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 7.2 8.1 7.8 16.7 22.8 26.8 27.0 27.7 25.2 17.5 13.7 8.8 17.4 1986 8.0 8.1 7.6 15.5 20.4 26.0 28.1 28.3 25.7 19.1 12.4 6.5 17.1 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 7.0 7.6 11.4 16.2 20.2 27.0 27.1 26.1 23.9 19.1 14.0 10.5 17.5 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 5.9 7.8 11.0 16.1 19.9 26.1 27.6 26.9 25.3 19.0 ****** 9.1 ****** 1991 8.0 6.8 9.1 16.2 19.7 24.8 28.2 27.6 24.1 21.0 13.7 9.1 17.3 1992 5.7 7.6 9.0 14.2 18.0 ****** 25.9 24.9 23.0 17.8 13.9 9.1 ****** 1993 ****** ****** ****** ****** ****** 23.5 26.4 27.4 23.9 17.6 10.6 8.4 ****** 1994 8.0 6.0 10.3 ****** 21.2 22.9 26.2 26.4 22.7 18.3 14.9 8.0 ****** 1995 9.4 9.0 11.2 16.7 22.1 26.5 27.9 28.0 24.9 17.6 14.4 7.7 17.9 1996 6.2 8.3 8.7 13.6 21.9 24.1 28.0 27.9 25.4 18.9 13.4 11.1 17.3 1997 9.2 7.5 9.1 16.4 21.9 26.6 27.2 28.5 23.1 21.1 12.8 9.3 17.7 1998 6.8 6.7 11.4 17.6 21.6 27.7 28.1 28.6 24.0 18.7 15.0 11.3 18.1 1999 8.2 11.0 11.5 15.6 20.0 25.2 27.2 30.0 24.2 20.2 12.2 9.8 17.9 2000 7.9 8.6 10.0 18.8 20.9 24.8 28.5 29.2 25.8 18.3 12.4 10.0 17.9 2001 7.2 10.1 13.2 17.5 21.7 25.7 27.8 28.5 25.5 18.7 14.2 10.7 18.4 2002 8.1 9.5 12.6 14.6 19.3 25.5 28.8 28.2 26.6 22.4 14.9 5.8 18.0 2003 8.4 8.6 9.1 13.5 20.2 23.3 26.4 27.7 24.5 21.4 13.3 10.2 17.2 MEAN 7.6 8.2 10.2 15.9 20.7 25.4 27.4 27.8 24.6 19.2 13.5 9.1 17.5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 5.0 5.2 4.6 11.1 16.7 19.7 19.3 20.1 19.8 13.2 11.1 6.2 12.7 1986 4.8 5.6 3.9 11.4 15.4 18.1 21.1 21.4 19.0 15.1 9.5 2.9 12.4 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 4.3 4.3 7.7 11.8 15.0 21.7 22.9 21.9 19.6 15.0 10.5 7.4 13.5 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 3.7 4.6 7.1 10.7 13.9 18.2 21.6 20.7 20.4 15.2 ****** 5.2 ****** 1991 4.6 3.2 6.5 11.7 14.0 17.8 22.4 22.5 19.6 16.4 9.7 5.1 12.8 1992 1.8 3.1 4.6 10.5 14.2 ****** 20.9 19.9 17.7 13.2 9.6 6.0 ****** 1993 ****** ****** ****** ****** ****** 18.8 20.7 21.6 19.9 12.4 7.4 5.7 ****** 1994 4.9 2.4 6.8 ****** 16.0 18.5 18.8 20.9 17.1 14.1 11.6 4.1 ****** 1995 5.3 5.1 7.6 12.3 14.6 16.9 20.1 22.2 18.7 13.4 10.6 4.2 12.6 1996 3.4 4.2 5.5 10.1 16.3 17.2 20.9 20.6 19.6 13.8 9.4 6.7 12.3 1997 5.6 3.1 5.2 10.8 15.2 19.9 21.7 22.3 18.2 16.4 9.3 6.1 12.8 1998 4.2 3.5 7.6 13.1 15.2 19.2 20.0 22.1 19.6 14.1 11.7 8.2 13.2 1999 3.7 5.6 7.1 10.2 12.9 15.0 18.2 22.0 17.4 15.1 7.7 5.4 11.7 2000 2.2 4.0 5.2 13.0 15.2 17.4 18.4 20.4 19.3 13.9 7.4 7.0 11.9 2001 2.6 3.6 7.3 10.9 14.3 15.8 17.7 19.4 17.9 12.9 9.3 6.4 11.5 2002 3.9 4.2 7.8 10.7 12.9 16.0 19.1 19.8 18.8 15.6 10.3 1.5 11.7 2003 3.7 3.9 5.6 9.4 11.7 16.1 17.7 18.5 17.9 16.1 8.8 5.8 11.3 MEAN 4.0 4.1 6.3 11.2 14.6 17.9 20.1 21.0 18.8 14.5 9.6 5.5 12.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 5.50 5.70 5.48 8.31 12.28 14.53 14.09 14.90 14.61 9.58 8.34 6.01 9.94 1986 5.49 5.71 5.02 8.42 11.01 13.04 15.89 16.13 13.93 10.91 7.61 4.78 9.83 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 5.23 5.21 6.61 8.87 10.75 16.53 17.65 16.59 14.50 10.76 8.11 6.54 10.61 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 5.01 5.39 6.47 8.31 9.95 13.25 16.42 15.47 15.10 10.97 ****** 5.65 ****** 1991 5.30 4.90 6.07 8.69 10.11 12.89 17.17 17.32 14.48 11.77 7.66 5.56 10.16 1992 4.41 4.81 5.43 8.00 10.37 ****** 15.57 14.60 12.77 9.57 7.63 5.93 ****** 1993 ****** ****** ****** ****** ****** 13.70 15.46 16.38 14.86 9.12 6.52 5.74 ****** 1994 5.45 4.61 6.23 ****** 11.42 13.41 13.62 15.54 12.30 10.21 8.59 5.24 ****** 1995 5.57 5.53 6.59 9.02 10.51 12.19 14.89 16.91 13.72 9.74 8.26 5.22 9.85 1996 4.93 5.24 5.68 7.79 11.70 12.39 15.82 15.36 14.47 10.00 7.55 6.20 9.76 1997 5.76 4.81 5.57 8.25 10.99 14.71 16.42 17.04 13.26 11.76 7.39 5.98 10.16 1998 5.16 4.99 6.64 9.66 10.96 14.09 14.84 16.92 14.57 10.34 8.66 6.82 10.30 1999 5.06 5.77 6.36 7.86 9.45 10.81 13.31 16.87 12.67 10.98 6.65 5.66 9.29 2000 4.61 5.16 5.65 9.52 10.95 12.65 13.45 15.25 14.23 10.02 6.60 6.29 9.53 2001 4.70 4.97 6.53 8.28 10.30 11.36 12.91 14.37 13.25 9.52 7.52 6.10 9.15 2002 5.16 5.25 6.77 8.09 9.35 11.70 14.10 14.73 13.86 11.43 7.95 4.37 9.40 2003 5.01 5.12 5.72 7.56 9.00 11.72 12.94 13.59 13.23 11.61 7.27 5.88 9.06 MEAN 5.15 5.20 6.05 8.44 10.57 13.06 14.97 15.76 13.87 10.49 7.64 5.76 9.75 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 8.90 9.21 8.85 13.38 19.62 23.15 22.48 23.73 23.28 15.39 13.42 9.71 15.93 1986 8.87 9.24 8.13 13.56 17.65 20.84 25.26 25.64 22.23 17.48 12.25 7.74 15.74 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 8.46 8.43 10.67 14.26 17.24 26.26 27.99 26.37 23.11 17.25 13.06 10.56 16.97 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 8.11 8.72 10.44 13.37 15.98 21.15 26.08 24.62 24.04 17.58 ****** 9.13 ****** 1991 8.58 7.93 9.81 13.97 16.23 20.59 27.24 27.48 23.07 18.85 12.34 8.99 16.26 1992 7.15 7.78 8.78 12.89 16.63 ****** 24.78 23.27 20.40 15.37 12.29 9.58 ****** 1993 ****** ****** ****** ****** ****** 21.87 24.60 26.03 23.65 14.66 10.53 9.27 ****** 1994 8.81 7.46 10.05 ****** 18.29 21.41 21.75 24.73 19.67 16.38 13.82 8.47 ****** 1995 9.01 8.95 10.64 14.51 16.85 19.49 23.72 26.85 21.88 15.64 13.29 8.44 15.77 1996 7.97 8.48 9.18 12.56 18.73 19.81 25.15 24.45 23.06 16.04 12.17 10.02 15.63 1997 9.30 7.78 9.01 13.28 17.61 23.44 26.10 27.05 21.17 18.83 11.92 9.66 16.26 1998 8.36 8.07 10.71 15.50 17.56 22.46 23.63 26.86 23.22 16.58 13.93 11.01 16.49 1999 8.19 9.33 10.26 12.66 15.18 17.33 21.24 26.77 20.24 17.58 10.72 9.15 14.89 2000 7.47 8.35 9.13 15.28 17.54 20.21 21.47 24.28 22.68 16.09 10.65 10.15 15.27 2001 7.61 8.04 10.54 13.32 16.52 18.19 20.63 22.90 21.15 15.28 12.11 9.86 14.68 2002 8.35 8.49 10.91 13.03 15.02 18.72 22.48 23.46 22.10 18.29 12.80 7.08 15.06 2003 8.11 8.29 9.25 12.17 14.46 18.75 20.67 21.69 21.11 18.59 11.72 9.50 14.53 MEAN 8.33 8.41 9.77 13.58 16.94 20.86 23.84 25.07 22.12 16.82 12.31 9.31 15.61 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1982 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 1.49 2.48 2.30 6.53 9.48 12.75 13.52 14.36 9.45 5.34 2.72 2.02 6.87 1986 2.25 1.78 2.60 4.62 6.93 13.31 13.45 13.54 12.08 5.34 2.78 2.36 6.75 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 1.81 2.49 3.17 5.01 7.25 10.02 8.21 7.80 7.04 5.49 3.65 2.55 5.37 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 1.41 2.32 3.28 5.58 7.71 13.31 11.31 11.10 8.57 5.23 ****** 3.16 ****** 1991 2.37 2.28 1.92 5.33 7.48 11.51 11.85 9.78 7.41 6.64 3.84 3.09 6.13 1992 2.34 2.96 3.17 3.71 4.78 ****** 9.08 8.74 8.40 5.75 4.36 2.25 ****** 1993 ****** ****** ****** ****** ****** 7.46 10.30 10.93 6.51 6.06 2.60 2.03 ****** 1994 2.26 2.17 2.90 ****** 7.52 6.92 12.81 10.08 8.57 5.30 3.53 2.72 ****** 1995 3.13 2.86 3.11 5.34 10.56 16.14 14.36 11.24 10.73 5.18 4.14 2.47 7.44 1996 1.77 3.21 2.19 3.40 8.41 10.68 13.36 13.73 10.30 6.51 3.68 3.70 6.75 1997 2.71 2.96 2.97 6.27 9.54 12.04 10.44 12.28 7.68 7.03 3.28 2.48 6.64 1998 1.77 2.18 3.36 5.51 9.10 15.21 14.81 12.83 7.21 5.74 3.69 2.71 7.01 1999 3.12 4.40 3.71 5.76 8.90 15.47 15.53 16.41 10.87 6.83 3.90 3.42 8.19 2000 3.69 3.20 3.55 7.24 7.89 11.83 18.55 17.05 10.96 5.27 4.20 2.41 7.99 2001 3.06 5.00 5.61 7.55 10.42 15.58 17.46 16.90 12.11 6.98 4.80 3.43 9.07 2002 2.82 3.92 4.35 4.00 8.21 14.53 17.94 15.46 13.16 9.83 4.70 2.46 8.45 2003 3.45 3.22 2.50 4.41 10.38 10.32 14.22 16.28 10.31 7.42 4.17 3.45 7.51 MEAN 2.47 2.96 3.17 5.35 8.41 12.32 13.37 12.85 9.49 6.23 3.75 2.75 6.93 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 87 83 82 72 71 67 64 66 74 78 86 85 76 1986 82 85 78 78 75 63 67 68 70 80 84 80 76 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 84 81 79 76 73 74 79 79 78 79 81 82 79 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 87 82 78 74 70 65 71 70 76 81 *** 79 *** 1991 81 80 85 77 72 67 72 75 77 76 78 78 77 1992 78 76 76 80 80 *** 75 75 74 76 78 82 *** 1993 *** *** *** *** *** 76 72 72 80 73 82 84 *** 1994 82 79 81 *** 74 78 65 73 73 79 82 78 *** 1995 78 78 80 78 66 59 65 72 70 78 79 80 74 1996 83 79 81 81 72 68 68 67 72 75 79 77 75 1997 80 75 78 72 68 69 74 71 76 77 81 82 75 1998 85 82 79 77 69 62 64 70 78 77 83 83 76 1999 76 73 76 73 68 57 61 65 69 75 77 77 71 2000 73 76 75 72 73 66 57 62 70 78 75 83 72 2001 75 68 72 70 67 57 58 61 66 73 76 77 68 2002 78 73 76 80 70 60 60 63 66 70 77 77 71 2003 76 76 80 79 63 68 62 61 70 75 78 77 72 MEAN 80 78 79 76 71 66 67 69 73 76 80 80 75 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 94 92 92 87 84 79 73 79 86 92 95 93 87 1986 94 94 92 91 86 73 80 81 87 92 95 93 88 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 94 92 88 86 82 82 87 88 89 92 92 92 89 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 94 91 86 84 80 76 81 81 88 92 *** 89 *** 1991 90 90 91 87 86 81 83 83 85 87 89 88 87 1992 88 86 86 88 88 *** 84 86 87 90 89 91 *** 1993 *** *** *** *** *** 86 83 85 93 87 91 91 *** 1994 89 89 89 *** 84 87 78 85 88 91 89 89 *** 1995 86 89 90 88 83 77 81 81 85 89 90 90 86 1996 91 88 88 89 84 82 81 82 86 88 90 90 87 1997 90 90 89 85 85 85 86 86 91 88 94 92 88 1998 94 93 91 89 84 76 81 84 91 90 93 93 88 1999 90 87 90 88 86 75 82 82 88 92 92 91 87 2000 86 90 90 86 89 84 75 79 87 92 91 94 87 2001 91 87 87 87 86 77 80 81 85 90 91 91 86 2002 91 90 90 92 87 82 85 83 86 91 93 93 89 2003 89 88 92 90 85 88 83 85 89 91 93 91 89 MEAN 91 90 89 88 85 81 81 83 88 90 92 91 87 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1981 *** *** *** *** *** *** *** *** *** *** *** *** *** 1982 *** *** *** *** *** *** *** *** *** *** *** *** *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 78 74 70 58 57 55 55 53 58 62 72 74 64 1986 68 75 65 66 63 53 56 53 51 64 70 63 62 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 72 69 69 66 64 64 68 66 64 60 67 70 67 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 77 70 69 62 60 52 62 59 63 66 *** 65 *** 1991 69 69 76 67 60 55 61 67 69 65 66 65 66 1992 66 66 65 72 71 *** 66 63 59 62 66 72 *** 1993 *** *** *** *** *** 67 62 59 68 58 70 74 *** 1994 72 69 72 *** 62 69 52 60 55 64 72 66 *** 1995 68 68 69 68 52 45 51 62 57 64 65 69 62 1996 73 68 75 72 61 52 52 52 57 55 61 60 62 1997 67 60 65 58 53 54 61 56 59 58 66 70 61 1998 73 68 66 63 53 49 49 55 63 59 67 71 61 1999 58 58 62 58 48 39 40 46 49 53 56 57 52 2000 57 56 57 55 54 48 39 44 49 58 53 68 53 2001 56 47 55 53 48 40 39 42 46 50 54 59 49 2002 60 52 57 66 52 38 38 45 43 43 55 56 50 2003 59 60 66 66 41 46 42 39 48 52 56 58 53 MEAN 67 64 66 63 56 52 53 54 56 58 64 66 60 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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 1981 *** *** *** *** *** *** 4 3 5 4 4 6 *** 1982 8 6 6 1 1 1 1 3 0 4 8 1 40 1983 4 1 3 0 1 0 1 1 3 2 3 4 23 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 4 8 2 2 0 0 0 1 1 4 3 7 32 1986 4 5 4 1 0 0 0 3 4 3 4 6 34 1987 *** *** *** *** *** *** *** *** *** *** *** *** *** 1988 6 1 4 6 2 2 7 4 3 2 3 4 44 1989 *** *** *** *** *** *** *** *** *** *** *** *** *** 1990 3 0 6 3 2 2 0 1 2 4 *** 5 *** 1991 2 4 1 0 3 0 1 1 0 1 5 4 22 1992 4 5 5 6 5 *** 0 2 3 3 3 4 *** 1993 *** *** *** *** *** 3 1 1 4 3 5 1 *** 1994 4 4 4 *** 2 5 0 1 4 6 3 6 *** 1995 1 1 3 5 0 3 1 0 4 5 4 4 31 1996 1 5 1 2 1 2 0 0 4 8 3 1 28 1997 4 4 6 3 2 1 3 0 5 3 6 5 42 1998 7 5 3 5 2 0 0 0 5 4 1 0 32 1999 4 2 2 2 4 0 2 0 3 3 6 2 30 2000 7 6 3 0 1 2 0 0 2 5 1 1 28 2001 1 3 4 0 1 0 1 1 2 4 5 2 24 2002 4 3 5 5 2 0 0 1 0 4 7 6 37 2003 0 6 6 3 2 2 0 1 2 2 5 5 34 MEAN 4 4 4 3 2 1 1 1 3 4 4 4 35 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. HIGHEST AND LOWEST LIMITS FOR 23 YEARS DURING 1981-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 19.0 16.2 17.4 29.4 26.2 34.8 29.6 30.2 28.0 26.4 28.0 17.4 1 YEAR - DAY 2000-19 1985-16 2002-25 2003-26 1996-29 1995-30 1990-28 2000- 3 2000- 9 1995- 4 1992-25 1990- 7 LOW. DRY 03 -4.0 -3.0 -2.4 2.6 5.6 14.2 18.6 17.8 12.2 7.4 0.6 -3.2 2 YEAR - DAY 2001-29 1991-15 1985-12 1997-12 2003- 2 2003- 7 1999-13 1992-31 1986-30 1990-19 2001-20 1986-12 HIG. WET 03 10.6 11.0 13.2 17.2 22.2 27.2 26.4 26.6 25.8 22.4 18.0 16.0 3 YEAR - DAY 2002- 8 2002-14 2002-28 2000- 8 1991-22 1988-15 1988- 7 1986-25 1998- 3 2002- 5 1988- 9 1990- 7 LOW. WET 03 -4.4 -4.2 -2.6 2.2 5.2 13.4 16.0 14.4 11.8 6.8 0.2 -3.1 4 YEAR - DAY 2001-29 1991-15 1985-12 1990- 2 2003- 2 2003- 7 2000-19 2001-15 1986-30 1995-18 2001-20 1986-12 HIG. DRY 09 22.8 32.4 28.4 35.4 35.4 42.8 36.8 38.2 35.6 36.4 30.8 24.8 5 YEAR - DAY 2000-19 1996- 9 2001-24 2003-26 2002-28 1995-29 2000-29 2003-12 1996- 8 2002- 3 1988- 8 1991- 9 LOW. DRY 09 1.4 1.2 3.4 9.6 10.4 17.0 21.2 21.0 16.4 10.2 5.8 2.4 6 YEAR - DAY 2001-24 1994-15 1985- 9 1985-16 1992- 4 1994- 5 1991-14 1988-31 1986-30 2001-26 1986-15 1994- 6 HIG. WET 09 14.8 20.0 23.2 23.2 27.4 30.2 29.6 32.6 29.2 25.4 22.2 17.2 7 YEAR - DAY 1997- 7 1996- 9 1990- 2 1991-26 1985-29 1988-14 1991-31 2002- 5 1993-14 2002- 3 1995-10 1990- 5 LOW. WET 09 0.8 0.0 2.4 7.8 8.6 10.8 17.6 19.2 14.2 9.8 4.2 1.2 8 YEAR - DAY 2000-15 1994-15 1992-10 1988- 2 2003- 1 2002- 9 1999-13 1985-23 2001-19 1998- 9 1986-15 2002-16 HIG. DRY 15 20.4 24.4 25.6 28.8 32.8 36.8 34.2 35.0 32.2 29.2 25.6 20.4 9 YEAR - DAY 2000-19 1996- 9 1988- 3 1995- 2 1985-20 1988-14 1991- 3 2000- 1 1990-13 1995- 3 1988- 8 1996-25 LOW. DRY 15 0.8 0.2 2.2 6.4 9.6 16.0 19.2 20.2 16.2 10.0 4.2 1.8 10 YEAR - DAY 2001-24 1985-23 1985- 8 1997-11 1992- 4 2000-12 1992-11 1992-11 1986-30 1992-15 1993-30 2002- 2 HIG. WET 15 14.0 15.6 17.4 23.6 27.2 28.6 28.8 28.6 27.6 24.4 18.0 15.6 11 YEAR - DAY 2002- 2 1985-15 2002-25 1998-14 1985-20 1988-14 2000-25 1991- 1 1997- 1 2002- 3 1986- 1 1996-25 LOW. WET 15 0.2 0.0 1.8 6.2 8.6 15.2 18.0 19.2 14.0 9.0 2.8 0.8 12 YEAR - DAY 1996-16 1985-23 1985- 8 1997-11 1992- 4 2003- 6 1998- 5 1992-31 1993-27 1993- 9 1993-30 1994- 7 HIG. MIN. 10.5 12.0 16.0 19.5 22.0 28.5 27.0 28.5 26.5 23.0 17.0 12.5 13 YEAR - DAY 1997-11 1999-19 2002-25 2003-26 1983-24 1995-30 1995-17 2000-26 1999- 4 2002-11 1983-20 1998-12 LOW. MIN. -4.5 -5.5 -3.0 2.0 5.0 12.0 16.0 15.0 9.0 3.5 0.5 -3.5 14 YEAR - DAY 2001-29 1985-24 1985-12 1997-12 2003- 2 2003- 7 1986-23 1985-30 1981-24 1982-26 2001-20 1986-12 HIG. MAX. 25.0 34.5 33.5 37.5 37.5 45.0 38.0 38.5 38.0 38.0 36.0 28.5 15 YEAR - DAY 2003- 7 1996- 9 2001-29 2000-10 2001-12 1995-29 1983-14 1983-14 1996-29 2002- 3 1981-13 1991- 9 LOW. MAX. 3.0 2.5 5.5 10.0 11.0 20.0 23.5 22.0 16.0 13.5 8.5 3.0 16 YEAR - DAY 1982-21 1994-15 1985- 4 2003-18 1992- 1 1994- 5 1992-11 1992-30 1981-24 1982-31 1993-26 1986-11 HIG. PPTN 35.3 32.9 44.6 43.0 53.0 59.0 33.5 23.5 83.2 80.0 76.0 49.4 17 YEAR - DAY 1994-21 1991- 5 1990-16 1998-24 2003-24 2003- 6 1991-14 2003-21 1995-21 2002-22 2003-22 1997-11 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 23 YEARS DURING 1981-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 17.2 20.6 19.0 19.2 18.6 17.6 14.6 16.0 16.0 17.8 17.4 16.4 18 YEAR - DAY 1997- 6 1996- 9 2002- 4 1991-17 2001-12 1995-29 2000-22 2001-15 1996- 8 1990-23 1992-22 1990- 2 DRY 15 - DRY 09 10.2 13.4 14.8 13.2 10.2 11.2 7.4 9.2 7.8 11.8 13.0 11.0 19 YEAR - DAY 2003- 1 2001-21 1998-13 1995- 3 1985- 1 1990- 4 1985- 1 2001-11 1988- 9 1996-23 1995-20 2001-29 DRY 15 - DRY 03 15.0 14.0 17.6 17.8 14.8 11.8 11.8 11.8 12.6 12.8 16.6 10.4 20 YEAR - DAY 1991-31 2001-23 2001-27 2003-25 2001-12 1995-21 2000-22 2001-15 1986-13 1990- 7 1992-24 1988-25 WET 09 - WET 03 13.4 13.8 15.2 12.0 9.6 10.2 12.4 8.4 11.6 10.2 13.2 11.6 21 YEAR - DAY 1986- 9 1985-14 1990- 2 1992-21 1994- 8 1990- 4 1996-15 1998-31 1996- 8 1986-23 1995-20 2000-18 WET 15 - WET 09 6.0 8.2 9.4 7.6 5.6 9.0 7.6 9.2 7.2 7.6 11.2 6.8 22 YEAR - DAY 1992- 1 1996- 9 2003-19 1995- 3 2003-27 1990- 4 1998- 5 2002- 5 1993-27 1991-19 1995-20 1995-29 WET 15 - WET 03 11.0 11.2 13.8 13.4 9.6 7.2 10.4 9.6 10.8 9.2 9.4 9.8 23 YEAR - DAY 1988-10 1997- 3 2001-27 2003-25 1991- 9 1999-13 2000-25 2001-15 1996- 8 1996-22 1988-17 1996-21 DAY BY DAY DRY 03 21.6 10.0 12.2 19.0 9.8 9.6 11.0 8.2 9.6 11.0 20.6 10.8 24 YEAR - DAY 2000-19 2002-17 2002-25 2003-26 1991-17 1995-23 1995- 1 2000-26 1994-15 1998- 9 1992-26 1999-16 DAY BY DAY WET 03 10.8 9.8 9.2 9.0 10.6 6.8 5.6 7.2 7.0 10.6 11.0 8.4 25 YEAR - DAY 2000-19 2002-17 2001-28 2003-26 1991-22 2003- 6 1996-15 1986-26 1986-29 1998- 9 1992-25 1988-26 DAY BY DAY DRY 09 17.2 21.4 16.0 19.0 16.6 12.6 8.6 7.4 13.4 15.6 16.0 11.4 26 YEAR - DAY 2000-19 1996-10 2001-30 2003-27 2000- 4 1990- 5 1996- 1 1992-29 1986-17 2002-22 1997- 6 1996-26 DAY BY DAY WET 09 8.6 12.8 10.2 9.6 6.6 9.0 8.2 9.0 7.6 9.2 10.0 9.0 27 YEAR - DAY 1999- 1 1996- 2 2003-19 1995- 4 1998-22 1990- 5 1996-16 2002- 6 2001-19 1992-15 1992-26 2001-21 DAY BY DAY DRY 15 12.4 13.8 13.2 13.4 11.0 14.6 6.4 7.8 8.8 10.6 10.4 9.6 28 YEAR - DAY 2000-19 1996-10 1998-25 1995- 3 2000- 4 1995-22 1986-22 2001-11 1996-30 1998- 8 1988- 9 2002- 2 DAY BY DAY WET 15 8.6 11.0 7.8 9.6 6.6 6.0 8.0 5.2 8.4 9.4 8.2 10.2 29 YEAR - DAY 1999- 1 1985- 6 2001-27 2003-10 1988-27 2000-14 1998- 6 1990-10 1993-28 2001-26 1992-26 2001-21 DAY BY DAY MIN. 8.5 8.5 12.0 9.5 7.5 8.0 7.5 8.0 8.5 7.5 10.0 8.5 30 YEAR - DAY 1983- 2 1999-19 2002-25 2003-26 1985- 6 1986-15 1995- 1 2000-16 1994-15 1982- 4 1988-15 1993-21 DAY BY DAY MAX. 10.5 17.5 17.5 17.5 11.5 11.5 8.5 8.0 11.5 10.5 13.0 15.5 31 YEAR - DAY 1985-22 1996- 2 2003-19 2000-11 1985- 2 1990- 5 1992-11 1985-24 1986-29 1994-20 1992-26 2001-21 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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.***** ***** ***** ***** ***** ***** 26.4 26.7 22.8 17.5 15.0 11.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 21.3 21.5 18.1 13.2 8.7 5.4 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 31.6 31.9 27.5 21.8 21.1 17.2 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** 10.3 10.4 9.4 8.6 12.4 11.8 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 19.0 19.0 9.0 9.0 4.5 1.0 ****** DAY ** ** ** ** ** ** 1 7 24 31 16 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 36.5 37.0 36.0 27.0 36.0 27.0 ****** DAY ** ** ** ** ** ** 29 4 17 6 13 15 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** 18.0 18.0 80.0 52.0 26.0 20.0 ****** DAY ** ** ** ** ** ** 20 15 22 17 6 19 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** 41.0 37.0 114.5 99.0 79.0 66.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** 44.1 55.9 NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** 5 5 7 4 5 6 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** 5 5 7 4 5 6 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** 1 1 2 3 4 3 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 19 23 5 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 22 27 13 0 3 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** 0 0 0 0 0 0 *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MEAN AND EXTREMES FOR THE YEAR 1982 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 6.2 5.8 8.7 16.8 19.5 23.2 26.6 25.0 23.9 17.4 11.0 7.4 16.0 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.9 1.7 4.2 11.2 15.5 18.5 21.9 20.7 18.5 12.1 6.9 1.9 11.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.7 9.9 13.2 22.4 23.5 28.1 31.3 29.3 29.4 22.7 15.0 12.9 20.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.8 8.2 9.0 11.2 8.0 9.6 9.4 8.6 10.9 10.6 8.1 11.0 9.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.5 -1.8 0.6 5.0 11.5 15.0 17.0 17.5 14.0 3.5 2.0 -1.5 -2.5 DAY 21 19 27 4 29 3 1 17 21 26 16 9 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.0 23.0 27.0 36.0 30.0 32.0 34.0 33.0 34.0 32.0 27.0 18.5 36.0 DAY 8 4 31 24 14 9 13 14 11 18 6 31 24 HOUR MAXIMUM PRECIPITATION IN MM. 21.0 25.0 33.5 5.0 6.5 33.0 6.0 18.0 2.0 32.0 17.0 6.5 33.5 DAY 10 5 25 8 3 28 7 1 13 6 9 6 MONTHLY TOTAL PRECIPITATION IN MM. 110.0 67.0 94.0 9.0 14.5 38.0 17.0 48.5 4.0 66.0 88.8 13.0 569.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 47.6 10.8 12.2 29.4 NO. OF DAYS WITH PRECIPITATION. 11 6 6 2 5 5 5 7 2 6 15 4 74 NO. OF DAYS PRECIPITATION EQUAL 11 6 6 2 5 3 4 6 2 6 11 3 65 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 3 3 0 0 1 0 3 0 2 4 0 20 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 26 19 9 0 0 0 58 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 1 8 25 13 13 2 0 0 65 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 9 6 0 0 0 0 0 0 0 0 0 10 25 DATE OF START AND END FREEZING START = 9 DEC. END = 20 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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. 6.2 7.7 9.6 15.8 21.8 24.6 28.2 27.0 23.2 18.1 15.8 9.3 17.3 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.3 2.1 4.8 9.4 16.8 19.9 23.2 22.9 18.8 12.0 10.0 3.5 12.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.1 13.3 14.6 22.2 26.7 29.4 33.2 31.0 27.5 24.2 21.5 15.1 22.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.8 11.2 9.8 12.8 9.9 9.5 10.0 8.1 8.7 12.2 11.5 11.6 10.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.0 -1.5 -0.5 4.0 11.5 16.5 18.5 16.5 13.0 8.0 2.0 -1.0 -4.0 DAY 27 3 1 2 1 1 1 28 16 13 27 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.5 24.5 24.0 31.5 34.0 37.0 38.0 38.5 32.0 30.0 27.0 23.0 38.5 DAY 1 19 27 18 4 15 14 14 9 11 1 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.5 17.5 18.0 2.2 6.5 3.6 5.3 7.0 11.4 66.5 13.0 29.5 66.5 DAY 25 22 6 23 30 28 29 26 15 5 24 15 MONTHLY TOTAL PRECIPITATION IN MM. 59.3 23.0 47.0 7.5 21.2 18.4 10.9 16.3 44.4 86.2 37.3 97.6 469.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.6 10.0 15.3 47.1 NO. OF DAYS WITH PRECIPITATION. 9 5 8 6 10 10 6 10 13 5 7 6 95 NO. OF DAYS PRECIPITATION EQUAL 9 3 8 4 7 7 3 5 10 4 4 6 70 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 1 0 0 0 0 0 1 2 2 4 13 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 13 29 25 9 0 0 0 77 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 6 16 28 19 6 1 0 0 79 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. 11 7 1 0 0 0 0 0 0 0 0 7 26 DATE OF START AND END FREEZING START = 17 DEC. END = 1 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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. 7.4 8.6 8.0 16.8 22.1 26.0 26.9 26.9 24.9 17.5 14.0 8.6 17.3 AVERAGE OF MINIMUM TEMPERATURE IN C. 3.1 3.7 2.8 9.9 15.0 19.8 22.5 20.1 19.3 12.0 9.0 4.1 11.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.9 13.4 13.0 22.8 29.2 32.0 31.3 33.7 30.5 23.0 18.8 13.3 22.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.8 9.7 10.2 12.9 14.2 12.2 8.8 13.6 11.3 11.0 9.8 9.2 11.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.71 4.73 4.84 7.61 10.59 13.68 13.60 13.78 13.61 8.80 7.34 5.32 9.05 MEAN OF MIXING RATIO AT 09 GMT. 5.98 6.25 5.74 8.61 13.10 15.04 14.21 15.32 14.42 9.80 8.90 6.51 10.32 MEAN OF MIXING RATIO AT 15 GMT. 5.82 5.98 5.85 8.71 13.15 14.86 14.47 15.60 15.79 10.16 8.79 6.21 10.45 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.5 -5.5 -3.0 4.5 8.5 17.0 20.0 15.0 14.0 7.5 5.0 -1.0 -5.5 DAY 25 24 12 18 5 4 24 30 24 24 1 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.0 27.0 28.5 33.0 37.0 36.5 35.0 38.0 36.0 31.5 25.0 19.0 38.0 DAY 21 14 21 12 20 19 5 6 1 20 9 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.7 32.0 9.6 10.0 1.7 1.3 2.0 7.3 31.0 65.0 9.2 17.3 65.0 DAY 23 6 3 16 3 27 2 24 20 11 27 20 MONTHLY TOTAL PRECIPITATION IN MM. 47.4 111.5 34.6 16.6 3.0 3.2 4.9 11.1 46.2 126.4 30.7 77.1 512.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 37.7 4.4 12.1 45.7 NO. OF DAYS WITH PRECIPITATION. 9 11 12 3 4 4 6 5 8 6 9 11 88 NO. OF DAYS PRECIPITATION EQUAL 7 11 7 2 1 1 2 4 7 5 7 9 63 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 4 0 1 0 0 0 0 1 3 0 3 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 91 87 90 85 84 75 69 77 84 91 94 92 85 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 80 77 72 58 58 57 56 54 59 63 72 74 65 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 90 84 83 73 72 68 67 65 79 80 91 88 78 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 10 29 15 10 1 0 0 67 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 16 26 23 27 17 1 0 0 113 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. 6 4 10 0 0 0 0 0 0 0 0 3 23 DATE OF START AND END FREEZING START = 29 DEC. END = 15 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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. 7.8 7.7 7.2 15.2 19.9 24.9 27.0 27.3 24.7 19.1 12.8 6.5 16.7 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.9 3.6 2.8 10.2 14.4 19.2 21.4 21.2 17.8 13.4 8.3 1.3 11.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.7 12.1 11.6 20.3 25.4 30.7 32.7 33.3 31.6 24.8 17.3 11.7 22.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.8 8.5 8.8 10.1 11.0 11.5 11.3 12.1 13.8 11.4 9.0 10.4 10.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.55 5.03 4.63 8.11 10.59 12.61 15.48 15.49 13.24 9.96 6.92 4.26 9.24 MEAN OF MIXING RATIO AT 09 GMT. 6.00 5.93 5.19 8.56 11.20 13.33 15.77 15.78 13.11 11.11 7.90 4.83 9.89 MEAN OF MIXING RATIO AT 15 GMT. 5.91 6.18 5.24 8.60 11.24 13.19 16.41 17.11 15.45 11.66 7.99 5.25 10.35 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.0 -1.0 -0.5 5.5 10.0 15.0 16.0 16.0 11.0 8.5 1.0 -3.5 -3.5 DAY 24 3 17 2 7 24 23 6 30 17 16 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.5 21.0 17.0 33.5 33.0 34.0 36.5 36.0 35.0 34.0 27.0 20.0 36.5 DAY 9 27 28 15 22 12 10 16 2 4 8 21 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.3 11.2 19.4 14.0 4.0 2.2 2.9 10.8 45.0 39.0 52.9 20.8 52.9 DAY 20 16 21 20 16 20 21 4 29 7 11 31 MONTHLY TOTAL PRECIPITATION IN MM. 39.2 55.5 59.8 22.8 9.9 4.2 5.0 27.1 92.7 72.7 97.5 82.8 569.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 27.1 6.5 21.9 44.4 NO. OF DAYS WITH PRECIPITATION. 8 13 10 8 9 3 5 5 5 8 10 12 96 NO. OF DAYS PRECIPITATION EQUAL 6 10 8 4 4 2 2 5 4 6 7 10 68 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 3 1 0 0 0 1 4 2 2 4 18 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 92 90 91 83 71 78 81 86 90 93 89 86 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 76 67 66 64 53 56 53 52 64 71 64 63 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 89 89 79 79 77 65 68 70 71 85 87 87 79 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 19 17 2 0 0 0 45 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 1 3 23 28 29 26 3 0 0 113 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. 10 2 6 0 0 0 0 0 0 0 0 8 26 DATE OF START AND END FREEZING START = 12 DEC. END = 18 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MEAN AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 6.3 7.4 10.9 15.6 19.3 25.7 26.4 25.6 23.2 18.6 13.2 9.8 16.9 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.4 2.6 5.7 10.3 14.2 20.3 22.4 21.6 18.5 13.3 8.0 4.5 11.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.2 12.3 16.2 20.9 24.4 31.2 30.4 29.7 27.9 23.9 18.5 15.1 21.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.8 9.7 10.5 10.6 10.2 10.9 8.0 8.1 9.4 10.6 10.5 10.6 9.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.57 4.63 5.78 7.96 10.20 15.38 17.25 16.32 13.67 10.12 7.31 5.60 9.90 MEAN OF MIXING RATIO AT 09 GMT. 5.47 5.44 6.95 9.45 11.01 17.54 17.73 16.25 14.28 10.54 8.45 7.12 10.85 MEAN OF MIXING RATIO AT 15 GMT. 5.66 5.57 7.10 9.20 11.06 16.68 17.96 17.22 15.56 11.63 8.58 6.90 11.09 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.0 -3.0 1.0 3.0 10.0 17.0 18.5 17.5 13.0 7.0 1.5 0.0 -3.0 DAY 5 7 7 3 3 1 27 26 22 23 15 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.0 24.5 28.0 30.0 32.0 38.5 32.5 36.0 36.5 29.5 30.8 22.5 38.5 DAY 8 2 3 22 27 14 4 11 9 20 8 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 28.2 9.7 19.0 19.3 32.5 23.4 30.5 18.1 21.0 14.5 51.9 19.1 51.9 DAY 29 3 5 2 2 20 9 30 21 15 29 13 MONTHLY TOTAL PRECIPITATION IN MM. 109.7 28.6 45.2 55.4 57.0 36.1 99.0 71.8 45.9 22.8 107.0 58.9 737.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 24.9 20.1 29.4 25.6 NO. OF DAYS WITH PRECIPITATION. 10 12 9 9 7 5 15 12 5 5 9 6 104 NO. OF DAYS PRECIPITATION EQUAL 9 9 8 6 5 3 10 10 5 3 6 6 80 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 0 1 2 2 2 3 3 1 1 3 3 26 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 91 90 86 84 82 80 87 86 89 91 90 89 87 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 73 71 71 68 64 65 69 66 64 61 68 72 68 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 87 82 82 78 74 76 80 84 82 84 85 86 82 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 13 27 23 5 0 0 0 68 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 1 3 21 21 18 6 0 1 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. 11 2 0 0 0 0 0 0 0 0 0 1 14 DATE OF START AND END FREEZING START = 25 DEC. END = 8 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** ***** ***** NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** *** *** *** *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** *** *** *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** *** *** *** *** *** *** *** DATE OF START AND END FREEZING START = ** **** END = ** **** IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MEAN AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 5.5 7.3 10.2 15.3 19.1 25.0 27.0 26.4 24.7 18.5 ***** 8.5 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 0.9 2.3 5.3 10.1 14.4 19.6 22.5 22.7 20.3 12.9 ***** 3.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.2 12.3 15.2 20.6 23.8 30.5 31.5 30.1 29.1 24.2 ***** 13.8 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.3 10.0 9.9 10.5 9.4 10.9 9.0 7.4 8.8 11.3 ***** 10.6 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.28 4.35 5.39 7.42 9.84 12.92 15.48 14.80 14.56 9.72 ***** 5.02 ***** MEAN OF MIXING RATIO AT 09 GMT. 5.54 5.96 7.15 8.67 9.88 13.11 16.97 15.04 14.84 11.57 ***** 5.95 ***** MEAN OF MIXING RATIO AT 15 GMT. 5.20 5.86 6.87 8.84 10.13 13.70 16.81 16.58 15.89 11.63 ***** 5.99 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -1.5 -1.5 -1.5 5.5 11.5 14.5 19.0 19.0 18.0 6.5 ***** -2.0 ****** DAY 10 8 18 6 1 7 10 17 5 16 ** 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 22.5 26.5 29.5 29.0 40.0 34.5 32.5 35.5 32.5 ***** 25.5 ****** DAY 21 17 2 12 29 3 16 18 14 23 ** 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.5 4.2 44.6 19.6 14.2 9.7 3.2 6.5 18.7 23.5 ***** 22.0 ****** DAY 25 4 16 2 1 22 1 26 2 14 ** 19 MONTHLY TOTAL PRECIPITATION IN MM. 38.5 17.2 91.1 53.8 27.4 20.5 7.0 11.4 36.3 47.8 ***** 80.3 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 34.0 23.6 12.7 29.7 NO. OF DAYS WITH PRECIPITATION. 9 7 9 8 5 6 3 7 7 9 *** 10 *** NO. OF DAYS PRECIPITATION EQUAL 7 6 7 7 4 4 3 3 4 5 *** 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 3 3 1 0 0 0 2 1 *** 4 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 92 86 84 78 79 74 79 77 87 89 *** 87 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 78 72 69 66 60 53 63 59 64 68 *** 66 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 90 87 81 78 72 67 71 75 77 85 *** 84 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 *** 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 14 23 29 15 1 *** 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 *** 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 18 26 18 9 1 *** 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 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. 13 7 3 0 0 0 0 0 0 0 *** 8 *** DATE OF START AND END FREEZING START = 20 DEC. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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. 7.3 6.3 8.4 15.6 18.8 23.7 27.3 27.1 23.6 20.5 13.0 8.9 16.7 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.8 1.8 5.2 10.3 13.1 18.0 22.1 22.7 19.1 15.0 8.0 3.9 11.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.8 10.7 11.6 20.9 24.6 29.4 32.5 31.4 28.0 25.9 18.1 13.9 21.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.0 8.9 6.4 10.6 11.5 11.4 10.4 8.7 8.9 10.9 10.1 10.0 9.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.67 4.37 5.66 7.95 9.64 12.28 15.80 16.12 13.38 10.75 6.80 4.84 9.36 MEAN OF MIXING RATIO AT 09 GMT. 5.59 4.96 6.22 9.14 10.32 13.48 18.11 18.66 15.53 12.90 8.20 6.00 10.76 MEAN OF MIXING RATIO AT 15 GMT. 5.65 5.37 6.33 8.97 10.38 12.91 17.59 17.18 14.52 11.67 7.98 5.85 10.37 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -1.0 -3.0 -0.5 5.0 8.5 13.5 18.0 20.0 11.5 11.5 3.0 -0.5 -3.0 DAY 1 13 12 14 7 6 15 27 28 14 17 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.0 21.0 21.5 34.5 31.0 35.0 36.5 36.5 32.0 34.5 23.5 28.5 36.5 DAY 31 18 28 17 2 30 4 1 4 26 1 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 27.6 32.9 5.7 4.6 21.6 2.7 33.5 22.7 4.3 11.5 13.2 22.8 33.5 DAY 6 5 26 13 11 5 14 28 9 9 6 3 MONTHLY TOTAL PRECIPITATION IN MM. 48.0 83.9 25.5 17.7 40.2 3.2 38.5 23.7 5.3 17.6 44.2 77.8 425.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 37.0 14.4 15.9 32.8 NO. OF DAYS WITH PRECIPITATION. 6 13 11 9 6 2 5 2 4 7 7 8 80 NO. OF DAYS PRECIPITATION EQUAL 5 11 7 5 5 1 3 2 1 3 7 7 57 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 0 0 1 0 1 1 0 1 1 4 14 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 87 90 86 83 80 83 83 84 87 88 87 85 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 70 69 77 67 61 56 64 69 69 66 68 66 67 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 85 83 86 77 71 65 69 72 78 76 79 80 77 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 26 28 10 0 0 0 68 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 4 13 26 27 4 1 0 0 78 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. 6 8 2 0 0 0 0 0 0 0 0 6 22 DATE OF START AND END FREEZING START = 17 DEC. END = 13 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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. 5.5 7.4 8.5 14.0 17.6 ***** 25.5 24.2 22.7 17.5 13.8 8.7 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 0.7 2.9 3.9 9.8 13.3 ***** 21.5 19.7 17.3 11.8 8.1 4.4 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.2 11.8 13.1 18.2 21.9 ***** 29.5 28.7 28.1 23.2 19.4 13.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.5 8.9 9.2 8.4 8.6 ***** 8.0 9.0 10.8 11.4 11.3 8.6 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.87 4.28 4.94 7.15 9.65 ***** 15.24 14.16 12.20 9.26 6.97 5.27 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.73 5.08 5.79 8.47 10.85 ***** 15.98 14.70 13.00 10.03 8.53 6.41 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.64 5.07 5.57 8.40 10.61 ***** 15.50 14.95 13.10 9.42 7.39 6.12 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.0 -2.0 -1.5 6.0 5.5 ***** 18.5 16.0 13.0 7.5 1.5 -0.5 ****** DAY 26 28 1 4 6 ** 12 30 1 8 27 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.5 17.5 24.5 30.0 31.5 ***** 33.0 31.5 31.0 31.5 29.5 19.5 ****** DAY 14 6 30 21 29 ** 17 22 3 13 23 15 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.5 22.0 33.5 13.1 30.8 ***** 4.5 19.5 19.8 14.5 38.1 22.0 ****** DAY 8 9 24 27 13 ** 1 30 28 15 26 19 MONTHLY TOTAL PRECIPITATION IN MM. 49.2 71.0 109.6 60.4 79.8 ***** 13.0 47.3 43.5 34.5 104.7 66.2 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 33.8 20.6 15.3 30.2 NO. OF DAYS WITH PRECIPITATION. 11 9 15 12 13 *** 5 10 7 5 7 12 *** NO. OF DAYS PRECIPITATION EQUAL 9 8 12 11 9 *** 3 5 5 4 3 7 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 3 3 2 3 *** 0 2 1 2 3 2 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 86 83 85 85 87 *** 83 85 86 88 87 88 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 66 68 67 73 73 *** 66 63 60 62 69 73 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 77 76 83 80 *** 75 76 75 79 77 86 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 *** 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 *** 18 7 3 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 *** 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 2 *** 17 13 8 2 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 *** 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 *** 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 15 5 4 0 0 *** 0 0 0 0 0 3 *** DATE OF START AND END FREEZING START = 29 DEC. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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.***** ***** ***** ***** ***** 23.5 25.8 26.9 23.6 17.2 10.3 7.6 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** 19.0 21.6 22.4 19.4 12.3 6.5 3.5 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** 28.1 30.1 31.5 27.9 22.2 13.9 11.6 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** 9.1 8.5 9.1 8.5 9.9 7.4 8.1 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** 13.51 15.20 15.85 14.51 8.75 6.04 5.13 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** 13.77 15.97 16.45 15.37 8.97 6.65 6.02 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** 13.83 15.29 16.84 14.70 9.64 6.75 6.04 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** 15.5 19.0 18.5 13.5 7.0 1.5 -1.5 ****** DAY ** ** ** ** ** 6 24 25 28 9 17 7 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** 34.0 36.5 34.5 33.0 31.0 20.5 21.0 ****** DAY ** ** ** ** ** 28 24 13 3 1 9 23 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** 20.1 5.4 11.6 13.3 62.8 48.3 30.1 ****** DAY ** ** ** ** ** 21 11 16 22 29 14 6 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** 41.8 12.0 20.5 57.7 100.5 105.8 45.6 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** 10.9 23.5 65.6 NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** 10 5 5 13 4 18 13 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** 6 3 4 10 3 13 5 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** 1 0 1 1 2 4 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** 84 83 83 92 86 88 90 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** 71 64 60 70 58 72 75 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** 74 71 73 79 76 85 86 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** 0 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** 4 23 25 11 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** 12 17 27 7 1 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. *** *** *** *** *** 0 0 0 0 0 0 6 *** DATE OF START AND END FREEZING START = 1 DEC. END = 21 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MEAN AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 7.3 4.9 10.0 ***** 20.8 22.5 25.6 26.5 22.3 18.2 14.8 7.8 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. 2.9 0.8 6.2 ***** 15.5 18.7 20.8 22.5 16.7 13.3 10.4 3.5 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.6 9.1 13.7 ***** 25.9 26.3 30.4 30.4 27.9 23.2 19.3 12.2 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.7 8.3 7.5 ***** 10.4 7.6 9.6 7.9 11.2 9.9 8.8 8.7 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.64 4.21 5.71 ***** 10.61 12.96 13.14 15.11 11.30 9.63 7.57 4.64 ***** MEAN OF MIXING RATIO AT 09 GMT. 5.75 4.70 6.37 ***** 11.65 13.71 13.62 15.38 12.22 10.59 9.34 5.60 ***** MEAN OF MIXING RATIO AT 15 GMT. 5.96 4.91 6.59 ***** 11.99 13.55 14.11 16.11 13.38 10.40 8.86 5.47 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.5 -2.5 0.5 ***** 11.0 12.5 17.0 20.0 13.5 8.5 5.5 -2.5 ****** DAY 22 11 2 ** 8 6 1 5 22 14 11 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 21.5 18.5 25.5 ***** 31.5 32.0 33.0 34.0 30.0 30.5 25.5 21.0 ****** DAY 30 27 29 ** 9 1 23 17 12 19 13 14 24 HOUR MAXIMUM PRECIPITATION IN MM. 35.3 12.3 10.0 ***** 13.8 42.5 0.0 5.8 15.6 43.1 12.4 17.4 ****** DAY 21 14 27 ** 6 5 ** 30 5 15 26 6 MONTHLY TOTAL PRECIPITATION IN MM. 69.9 58.4 42.1 ***** 26.2 99.1 0.0 12.3 48.6 125.6 39.2 86.6 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 28.0 20.6 10.0 41.3 NO. OF DAYS WITH PRECIPITATION. 12 13 14 *** 6 11 0 5 7 12 8 10 *** NO. OF DAYS PRECIPITATION EQUAL 8 10 9 *** 4 9 0 4 7 9 5 7 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 1 *** 1 4 0 0 2 4 1 5 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 85 87 *** 84 86 75 83 86 88 88 85 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 73 71 75 *** 62 70 53 60 55 65 73 67 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 86 81 81 *** 76 77 67 75 78 83 84 81 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 *** 0 4 14 24 3 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 *** 5 5 22 19 2 1 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. 5 13 0 *** 0 0 0 0 0 0 0 6 *** DATE OF START AND END FREEZING START = 7 DEC. END = 23 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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. 9.1 8.6 11.0 16.6 21.1 25.2 27.4 27.8 24.6 17.4 14.8 8.1 17.6 AVERAGE OF MINIMUM TEMPERATURE IN C. 4.6 4.2 6.0 11.4 15.0 19.3 23.0 24.0 19.6 12.5 8.8 3.1 12.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.5 13.0 15.9 21.8 27.3 31.1 31.9 31.6 29.6 22.2 20.7 13.2 22.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.9 8.8 9.9 10.4 12.3 11.8 8.9 7.6 10.0 9.7 11.9 10.1 10.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.93 4.92 5.67 7.90 10.20 12.50 15.16 16.22 13.47 9.09 6.96 4.52 9.30 MEAN OF MIXING RATIO AT 09 GMT. 5.99 5.90 7.03 9.68 10.63 12.18 14.17 17.34 13.81 9.87 9.23 5.91 10.15 MEAN OF MIXING RATIO AT 15 GMT. 5.79 5.78 7.07 9.50 10.69 11.89 15.33 17.16 13.86 10.26 8.59 5.23 10.10 ABSOLUTE OF MINIMUM TEMPERATURE IN C. 0.5 -2.0 1.5 6.5 11.5 14.5 20.0 21.5 13.0 6.0 2.5 -1.5 -2.0 DAY 19 26 1 8 12 1 25 28 23 18 28 19 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 23.0 19.5 25.0 30.0 32.5 45.0 36.5 34.5 34.5 34.5 29.5 20.0 45.0 DAY 29 11 31 2 23 29 16 12 6 3 10 22 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.5 31.1 18.3 24.2 3.7 6.5 13.6 3.1 83.2 25.3 67.3 9.2 83.2 DAY 18 24 18 24 4 11 6 1 21 13 26 9 MONTHLY TOTAL PRECIPITATION IN MM. 17.9 38.0 37.0 75.8 4.8 19.3 16.9 3.3 157.0 104.5 122.6 46.7 643.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 14.4 15.5 27.5 42.5 NO. OF DAYS WITH PRECIPITATION. 5 6 8 12 3 5 5 2 8 12 5 11 82 NO. OF DAYS PRECIPITATION EQUAL 4 4 6 9 1 4 3 1 8 9 5 8 62 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 1 1 3 0 0 1 0 3 4 3 0 16 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 88 89 86 82 74 78 80 84 87 87 87 84 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 69 69 70 69 53 49 52 63 57 64 65 70 63 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 77 80 79 64 54 65 72 69 83 86 83 74 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 8 30 31 11 0 0 0 80 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 7 17 26 24 18 1 0 0 94 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 0 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 0 0 0 0 0 0 1 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 0 2 0 0 0 0 0 0 0 0 0 5 7 DATE OF START AND END FREEZING START = 11 DEC. END = 27 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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. 6.1 8.1 8.5 13.6 21.4 23.8 27.5 27.6 25.3 18.7 13.3 11.0 17.1 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.2 4.2 5.9 9.5 16.5 19.4 22.3 22.8 20.0 13.5 8.8 5.9 12.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.0 12.2 11.2 17.6 26.3 28.2 32.6 32.4 30.4 23.9 17.7 16.2 21.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.8 8.0 5.3 8.1 9.8 8.8 10.3 9.6 10.4 10.4 8.9 10.3 9.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.30 4.75 5.34 6.98 10.96 12.51 15.09 15.19 13.39 9.05 6.82 5.44 9.15 MEAN OF MIXING RATIO AT 09 GMT. 5.35 5.69 5.94 8.33 11.79 11.47 15.14 14.69 14.24 9.46 7.23 6.20 9.63 MEAN OF MIXING RATIO AT 15 GMT. 5.13 5.29 5.76 8.08 12.35 13.19 17.22 16.20 15.77 11.48 8.61 6.98 10.51 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.0 -2.5 1.5 3.0 12.0 17.0 18.0 18.5 14.5 8.5 3.0 1.5 -2.5 DAY 16 4 20 6 3 7 16 30 21 20 19 2 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 34.5 17.0 26.0 35.0 34.5 36.5 35.5 38.0 32.0 21.5 25.0 38.0 DAY 7 9 29 18 17 29 19 7 29 23 5 25 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.1 28.8 6.4 20.0 7.5 10.7 0.0 4.3 28.4 44.5 45.2 23.8 45.2 DAY 8 2 19 14 12 10 ** 13 20 28 11 15 MONTHLY TOTAL PRECIPITATION IN MM. 21.2 88.5 30.2 54.1 14.4 24.3 0.0 8.1 63.0 181.9 90.3 29.4 605.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 23.1 15.3 11.7 49.8 NO. OF DAYS WITH PRECIPITATION. 8 11 15 15 6 8 0 2 8 11 7 4 95 NO. OF DAYS PRECIPITATION EQUAL 5 9 10 11 4 7 0 2 6 9 5 3 71 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 3 0 2 0 1 0 0 2 7 3 1 19 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 90 86 87 86 82 78 79 81 84 84 90 87 85 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 74 72 77 74 61 52 53 52 57 56 61 62 63 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 84 78 81 82 74 73 71 67 76 84 85 83 78 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 24 26 12 0 0 0 67 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 1 0 0 7 8 29 28 17 1 0 0 91 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. 8 1 0 0 0 0 0 0 0 0 0 0 9 DATE OF START AND END FREEZING START = 11 JAN. END = 4 FEB. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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. 9.0 7.5 9.1 16.2 21.1 26.0 27.1 28.2 23.0 21.0 13.0 9.7 17.6 AVERAGE OF MINIMUM TEMPERATURE IN C. 4.8 3.1 4.6 10.7 15.3 21.2 23.4 24.3 18.6 15.5 8.6 5.0 12.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.2 12.0 13.6 21.7 26.9 30.9 30.8 32.1 27.4 26.5 17.5 14.3 22.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.4 8.9 9.0 11.0 11.6 9.7 7.4 7.8 8.8 11.0 8.9 9.3 9.3 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 5.16 4.31 4.96 7.35 10.51 15.07 16.37 16.85 12.77 10.72 6.67 5.26 9.67 MEAN OF MIXING RATIO AT 09 GMT. 5.75 4.87 5.64 8.46 11.02 13.92 15.96 16.16 12.42 11.74 7.79 6.62 10.03 MEAN OF MIXING RATIO AT 15 GMT. 6.36 5.25 6.12 8.95 11.44 15.14 16.93 18.11 14.59 12.82 7.71 6.05 10.79 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.0 -3.0 -0.5 2.0 10.0 15.5 20.5 21.0 14.5 13.0 4.5 0.0 -3.0 DAY 29 2 10 12 6 5 6 30 16 26 30 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 23.5 19.5 24.0 33.0 33.0 40.5 35.5 34.5 35.5 34.5 27.0 20.5 40.5 DAY 6 17 23 24 4 12 31 3 2 13 5 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.3 26.7 23.8 11.2 19.6 26.1 13.4 3.2 29.5 53.4 60.4 49.4 60.4 DAY 29 1 20 12 5 3 7 8 13 31 6 11 MONTHLY TOTAL PRECIPITATION IN MM. 51.7 59.2 84.1 31.6 26.7 32.0 42.6 7.9 72.7 116.8 130.6 122.7 778.6 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 25.0 11.6 15.8 47.5 NO. OF DAYS WITH PRECIPITATION. 10 13 13 6 4 4 13 5 10 7 7 10 102 NO. OF DAYS PRECIPITATION EQUAL 7 9 8 4 2 3 8 4 10 5 7 7 74 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 3 1 1 1 2 0 2 3 4 5 25 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 86 86 83 84 84 84 84 88 86 91 89 86 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 67 61 66 58 55 54 61 57 60 59 68 71 61 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 83 79 83 75 66 69 76 72 81 86 86 87 79 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 3 19 30 31 6 0 0 0 89 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 1 4 21 20 27 5 3 0 0 81 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 0 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 2 6 3 0 0 0 0 0 0 0 0 1 12 DATE OF START AND END FREEZING START = 29 DEC. END = 11 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MEAN AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 6.8 6.8 11.4 17.5 21.3 26.8 27.6 28.4 24.0 18.8 15.5 11.4 18.0 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.8 2.4 6.5 12.0 16.1 21.5 22.9 23.5 19.8 13.7 10.8 7.5 13.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.7 11.5 16.3 22.9 26.4 32.0 32.2 33.2 28.2 23.8 20.1 15.3 22.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 7.9 9.1 9.8 10.9 10.3 10.5 9.3 9.7 8.4 10.1 9.3 7.8 9.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.55 4.41 5.79 8.41 10.69 14.35 15.67 16.43 14.09 9.99 8.06 6.37 9.90 MEAN OF MIXING RATIO AT 09 GMT. 5.42 5.18 6.98 10.03 10.79 13.93 14.38 16.49 13.82 9.98 8.83 7.06 10.24 MEAN OF MIXING RATIO AT 15 GMT. 5.52 5.36 7.15 10.53 11.39 13.98 14.46 17.84 15.81 11.05 9.09 7.04 10.77 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.0 -0.5 -0.5 6.0 9.0 17.0 18.0 20.5 16.0 8.5 7.0 3.5 -2.0 DAY 17 11 1 2 3 1 26 31 13 10 27 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 21.5 27.0 31.0 33.0 37.5 35.5 35.5 34.5 32.0 26.5 24.5 37.5 DAY 30 7 13 14 21 23 19 5 1 17 16 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 17.9 10.1 43.0 19.5 2.0 3.4 4.5 18.1 38.7 22.4 4.8 43.0 DAY 14 26 26 24 30 26 24 22 26 7 11 2 MONTHLY TOTAL PRECIPITATION IN MM. 88.7 86.8 36.4 91.3 32.4 2.8 3.4 13.6 73.1 74.1 32.3 17.5 552.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 38.4 22.9 16.3 22.4 NO. OF DAYS WITH PRECIPITATION. 12 11 11 10 7 2 1 9 10 10 7 8 98 NO. OF DAYS PRECIPITATION EQUAL 11 10 7 8 5 1 1 6 10 7 4 5 75 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 5 1 3 1 0 0 0 3 3 1 0 22 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 91 90 88 87 82 75 79 84 90 88 91 92 86 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 73 70 69 64 56 51 52 56 63 60 67 71 63 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 89 87 81 79 70 60 60 71 82 85 89 86 78 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 20 28 30 10 0 0 0 89 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 4 23 27 30 6 2 0 0 95 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. 4 7 2 0 0 0 0 0 0 0 0 0 13 DATE OF START AND END FREEZING START = 4 JAN. END = 3 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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. 8.5 11.4 11.3 15.6 19.6 24.6 26.7 29.8 24.3 20.2 12.6 10.2 17.9 AVERAGE OF MINIMUM TEMPERATURE IN C. 3.5 5.9 6.9 11.0 14.3 19.3 21.5 24.5 19.8 15.3 8.2 5.0 12.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.6 17.0 15.8 20.2 24.9 29.9 31.9 35.1 28.8 25.1 17.0 15.5 22.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.1 11.1 8.9 9.2 10.6 10.6 10.4 10.6 9.0 9.8 8.8 10.5 10.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.65 5.13 5.85 7.53 9.67 11.20 14.28 17.32 13.39 10.86 6.51 5.07 9.29 MEAN OF MIXING RATIO AT 09 GMT. 5.07 5.83 6.40 7.51 8.28 9.50 11.27 14.99 11.14 9.77 6.19 5.65 8.47 MEAN OF MIXING RATIO AT 15 GMT. 5.46 6.36 6.82 8.54 10.40 11.74 14.36 18.29 13.47 12.30 7.25 6.27 10.11 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -2.5 1.0 1.0 5.0 9.0 15.5 18.0 21.5 13.0 8.0 2.5 0.0 -2.5 DAY 3 2 19 11 22 6 15 17 29 26 30 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 19.5 26.5 23.0 31.0 30.5 35.0 35.0 38.5 33.5 29.5 24.5 23.5 38.5 DAY 11 21 21 30 27 14 20 24 2 11 25 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 22.7 8.2 16.7 6.6 15.5 2.9 16.5 4.0 77.5 47.9 15.3 19.0 77.5 DAY 1 21 17 6 21 29 26 30 23 13 27 16 MONTHLY TOTAL PRECIPITATION IN MM. 65.0 16.3 43.1 24.7 46.4 4.1 29.2 7.1 117.4 91.7 76.4 36.1 557.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 22.3 13.5 27.6 36.6 NO. OF DAYS WITH PRECIPITATION. 8 3 10 7 10 3 6 5 9 8 12 6 87 NO. OF DAYS PRECIPITATION EQUAL 7 2 9 6 7 1 4 2 5 4 11 5 63 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 2 0 2 0 1 0 2 2 4 1 16 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 85 88 87 84 71 81 81 87 90 88 87 85 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 58 59 63 59 49 39 41 47 49 54 58 59 53 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 77 78 74 70 59 62 67 72 83 86 87 75 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 19 31 13 0 0 0 72 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 2 1 17 27 31 14 0 0 0 92 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. 6 0 0 0 0 0 0 0 0 0 0 1 7 DATE OF START AND END FREEZING START = 1 DEC. END = 27 JAN. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MEAN AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 7.9 8.7 10.0 19.0 20.7 24.2 28.0 29.0 25.8 18.5 12.5 9.9 17.8 AVERAGE OF MINIMUM TEMPERATURE IN C. 3.5 3.8 5.6 12.8 15.7 19.0 22.0 24.0 22.0 14.3 7.9 5.6 13.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.4 13.6 14.5 25.2 25.6 29.3 34.0 34.0 29.6 22.6 17.1 14.3 22.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 8.9 9.8 8.9 12.4 9.9 10.3 12.0 10.0 7.6 8.3 9.2 8.7 9.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.51 4.73 5.50 8.59 11.17 13.34 13.47 15.71 14.99 10.06 6.53 5.74 9.53 MEAN OF MIXING RATIO AT 09 GMT. 4.25 4.87 5.18 9.32 9.45 11.03 11.69 13.49 12.07 9.12 6.07 6.48 8.59 MEAN OF MIXING RATIO AT 15 GMT. 5.09 5.88 6.26 10.64 12.24 13.58 15.20 16.56 15.63 10.88 7.20 6.64 10.48 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -3.5 -1.5 -1.0 6.5 10.5 12.5 18.5 20.0 16.0 8.5 3.0 0.0 -3.5 DAY 15 9 16 2 11 14 19 12 26 16 12 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 24.0 22.0 22.0 37.5 34.5 33.0 37.5 38.0 34.0 26.0 21.5 18.5 38.0 DAY 19 23 19 10 3 5 29 1 7 10 1 18 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.5 13.8 19.8 0.0 6.6 15.5 2.4 4.6 14.0 26.0 7.5 10.0 26.0 DAY 7 26 15 ** 9 13 9 5 2 1 10 2 MONTHLY TOTAL PRECIPITATION IN MM. 60.7 63.1 57.4 0.0 22.1 28.0 2.4 10.3 37.0 85.3 10.9 29.1 406.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.6 12.3 12.2 30.8 NO. OF DAYS WITH PRECIPITATION. 8 13 15 0 9 4 1 6 13 12 7 11 99 NO. OF DAYS PRECIPITATION EQUAL 7 10 10 0 7 3 1 4 7 8 1 8 66 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 3 0 0 1 0 0 2 3 0 1 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 87 87 85 88 83 73 78 85 92 90 92 85 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 56 59 56 55 48 39 44 49 58 53 69 54 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 77 85 81 74 77 68 60 64 75 85 81 89 76 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 21 28 23 0 0 0 78 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 4 4 16 31 30 10 0 0 0 95 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. 5 3 1 0 0 0 0 0 0 0 0 1 10 DATE OF START AND END FREEZING START = 29 DEC. END = 16 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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. 7.2 10.0 13.5 17.2 21.7 25.1 27.5 28.4 25.4 18.6 14.5 11.1 18.4 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.3 4.0 7.7 11.8 16.2 19.9 22.2 23.1 20.7 13.6 9.3 5.9 13.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.2 15.9 19.4 22.7 27.2 30.4 32.7 33.6 30.0 23.6 19.7 16.2 23.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.9 11.9 11.7 10.9 11.0 10.5 10.5 10.5 9.3 10.0 10.4 10.3 10.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.27 4.56 6.11 8.01 10.79 12.45 14.37 15.50 14.23 9.54 7.07 5.51 9.37 MEAN OF MIXING RATIO AT 09 GMT. 4.58 4.74 6.32 7.81 9.25 9.92 11.16 12.41 11.59 8.29 7.15 6.28 8.29 MEAN OF MIXING RATIO AT 15 GMT. 5.25 5.61 7.16 9.01 10.85 11.71 13.21 15.20 13.95 10.72 8.32 6.52 9.79 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.5 -1.5 0.0 7.5 12.5 14.0 19.5 18.0 14.5 7.0 0.5 -0.5 -4.5 DAY 29 1 12 2 7 2 20 15 22 28 20 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.0 25.5 33.5 34.0 37.5 35.5 37.5 38.0 33.5 34.0 27.5 28.5 38.0 DAY 1 21 29 25 12 23 30 3 9 6 15 20 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.7 16.0 16.7 3.2 14.0 2.0 30.0 6.5 14.0 26.8 13.0 19.5 30.0 DAY 24 22 10 13 25 10 19 27 1 2 1 21 MONTHLY TOTAL PRECIPITATION IN MM. 19.2 46.3 48.9 8.8 19.2 3.0 37.4 19.5 22.1 75.1 55.3 42.0 396.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 28.8 7.8 19.9 43.4 NO. OF DAYS WITH PRECIPITATION. 9 6 9 6 6 3 6 6 4 7 8 7 77 NO. OF DAYS PRECIPITATION EQUAL 7 6 9 4 3 1 4 6 3 5 7 5 60 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 2 0 1 0 1 0 1 3 3 2 15 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 84 85 86 85 76 77 79 84 87 87 86 84 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 48 55 55 49 40 39 42 47 51 56 63 50 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 73 74 69 67 56 57 62 68 81 85 83 71 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 11 27 25 13 0 0 0 76 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 1 2 7 18 28 30 19 1 0 0 106 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. 7 2 1 0 0 0 0 0 0 0 0 1 11 DATE OF START AND END FREEZING START = 22 DEC. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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. 8.4 9.5 12.9 14.8 18.8 24.8 28.1 28.2 26.2 22.6 15.2 6.3 18.0 AVERAGE OF MINIMUM TEMPERATURE IN C. 3.7 4.0 7.7 10.9 14.4 19.3 22.9 24.0 21.8 17.3 10.5 2.0 13.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.1 15.0 18.1 18.6 23.3 30.3 33.2 32.3 30.7 27.8 19.9 10.6 22.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.4 11.0 10.4 7.7 8.9 11.0 10.3 8.3 8.9 10.5 9.4 8.6 9.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.80 4.96 6.28 7.96 9.89 12.60 16.39 16.17 15.18 12.04 7.61 3.98 9.82 MEAN OF MIXING RATIO AT 09 GMT. 4.97 4.94 6.51 7.78 8.18 9.30 11.48 13.35 11.15 9.22 7.53 4.29 8.22 MEAN OF MIXING RATIO AT 15 GMT. 5.72 5.85 7.51 8.55 9.97 13.19 14.44 14.67 15.25 13.02 8.71 4.86 10.14 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -1.0 -0.5 0.0 6.0 8.5 14.5 17.0 18.5 15.5 10.5 3.5 -1.5 -1.5 DAY 13 17 7 14 2 8 2 14 28 23 30 4 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.5 24.0 30.0 30.0 36.5 35.0 37.0 37.0 33.0 38.0 28.0 16.5 38.0 DAY 2 25 27 7 28 1 18 3 17 3 12 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 17.1 30.5 34.5 25.5 6.5 4.5 2.0 6.5 2.2 80.0 31.5 9.5 80.0 DAY 9 16 10 22 13 22 22 13 15 22 7 13 MONTHLY TOTAL PRECIPITATION IN MM. 61.3 58.0 94.0 81.0 19.0 9.0 4.5 17.5 3.4 128.0 125.2 53.6 654.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 32.6 16.7 3.9 46.9 NO. OF DAYS WITH PRECIPITATION. 8 5 12 13 7 4 4 8 3 6 11 19 100 NO. OF DAYS PRECIPITATION EQUAL 8 4 9 10 6 2 2 6 1 5 9 9 71 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 3 3 2 0 0 0 0 0 3 6 0 20 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 89 86 87 91 86 78 85 80 85 87 90 86 86 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 53 58 67 52 39 39 47 43 43 55 60 51 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 84 81 83 81 71 64 55 61 70 80 87 86 75 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 28 30 23 6 0 0 96 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 1 1 4 21 29 27 20 8 0 0 111 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. 5 1 2 0 0 0 0 0 0 0 0 10 18 DATE OF START AND END FREEZING START = 4 DEC. END = 11 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 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. 8.5 8.8 9.2 13.7 19.5 22.8 26.3 27.2 24.2 21.4 13.4 10.5 17.1 AVERAGE OF MINIMUM TEMPERATURE IN C. 3.8 5.0 6.0 9.5 13.6 18.1 22.5 22.4 19.8 16.5 8.9 6.3 12.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.2 12.5 12.4 17.9 25.3 27.5 30.2 32.0 28.6 26.3 18.0 14.7 21.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.4 7.5 6.4 8.4 11.7 9.4 7.7 9.6 8.8 9.8 9.1 8.4 8.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.57 4.92 5.62 6.82 9.11 12.72 14.88 15.30 13.78 11.35 7.11 5.68 9.32 MEAN OF MIXING RATIO AT 09 GMT. 4.94 4.83 5.58 7.47 7.57 9.69 10.53 10.91 11.06 10.41 6.65 5.62 7.94 MEAN OF MIXING RATIO AT 15 GMT. 5.52 5.62 5.97 8.38 10.32 12.74 13.42 14.57 14.86 13.08 8.07 6.35 9.91 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -1.5 -2.0 -1.5 3.5 5.0 12.0 19.0 20.0 13.5 12.5 2.5 -1.5 -2.0 DAY 27 18 3 19 2 7 5 1 27 21 23 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 25.0 24.5 29.0 36.0 32.0 32.0 34.0 38.5 34.0 33.5 24.0 24.0 38.5 DAY 7 3 19 26 30 18 8 12 6 29 2 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 4.5 17.2 26.0 11.5 53.0 59.0 3.8 23.5 21.7 53.0 76.0 34.5 76.0 DAY 17 12 8 14 24 6 25 21 8 5 22 11 MONTHLY TOTAL PRECIPITATION IN MM. 10.4 66.7 76.7 45.0 74.8 93.0 10.0 33.2 40.3 75.7 270.7 84.8 881.3 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 17.5 24.1 9.5 48.9 NO. OF DAYS WITH PRECIPITATION. 5 13 13 13 5 9 7 6 7 4 11 9 102 NO. OF DAYS PRECIPITATION EQUAL 4 9 10 10 3 7 5 5 5 4 10 9 81 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 2 2 2 2 0 1 2 2 5 3 23 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 87 85 90 86 83 88 82 84 88 88 91 89 87 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 60 67 68 41 47 42 39 48 53 56 58 53 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 82 84 84 66 70 63 61 74 84 86 83 77 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 26 28 15 1 0 0 74 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 2 3 18 28 9 3 0 0 66 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 4 2 1 0 0 0 0 0 0 0 0 2 9 DATE OF START AND END FREEZING START = 13 DEC. END = 3 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MEAN AND EXTREMES FOR THE PERIOD 1981 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. 7.3 7.9 9.9 15.8 20.2 24.6 26.9 27.2 24.1 18.9 13.6 9.1 17.1 SD OF MEAN DAILY TEMPERATURE IN C. 1.14 1.52 1.69 1.42 1.26 1.17 0.78 1.32 1.09 1.51 1.45 1.55 1.33 AVERAGE OF MINIMUM TEMPERATURE IN C. 2.7 3.2 5.4 10.6 15.0 19.4 22.2 22.5 19.3 13.7 8.7 4.3 12.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.9 12.7 14.4 21.0 25.5 29.7 31.7 31.9 28.9 24.0 18.5 14.0 22.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.2 9.4 9.0 10.4 10.5 10.3 9.5 9.3 9.6 10.4 9.7 9.7 9.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.57 4.65 5.51 7.72 10.26 13.14 15.12 15.67 13.64 9.99 7.02 5.16 9.37 MEAN OF MIXING RATIO AT 09 GMT. 5.34 5.33 6.19 8.62 10.32 12.56 14.37 15.15 13.19 10.20 7.80 6.04 9.59 MEAN OF MIXING RATIO AT 15 GMT. 5.55 5.62 6.47 9.00 11.14 13.50 15.46 16.49 14.80 11.29 8.12 6.11 10.29 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.5 -5.5 -3.0 2.0 5.0 12.0 16.0 15.0 9.0 3.5 0.5 -3.5 -5.5 YEAR - DAY 1-29 85-24 85-12 97-12 3- 2 3- 7 86-23 85-30 81-24 82-26 1-20 86-12 85-24 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 25.0 34.5 33.5 37.5 37.5 45.0 38.0 38.5 38.0 38.0 36.0 28.5 45.0 YEAR - DAY 3- 7 96- 9 1-29 0-10 1-12 95-29 83-14 83-14 96-29 2- 3 81-13 91- 9 95-29 24 HOUR MAXIMUM PRECIPITATION IN MM. 35.3 32.9 44.6 43.0 53.0 59.0 33.5 23.5 83.2 80.0 76.0 49.4 83.2 YEAR - DAY 94-21 91- 5 90-16 98-24 3-24 3- 6 91-14 3-21 95-21 2-22 3-22 97-11 95-21 MONTHLY TOTAL PRECIPITATION IN MM. 53.7 57.7 58.7 38.6 29.9 26.7 19.7 22.4 56.3 86.6 86.8 60.7 597.8 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 28.5 15.9 16.4 39.2 NO. OF DAYS WITH PRECIPITATION. 9 9 11 8 7 5 5 6 8 7 9 9 93 NO. OF DAYS PRECIPITATION EQUAL 7 8 8 6 5 4 3 4 6 5 7 7 70 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 2 1 1 1 1 1 2 3 3 2 21 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 88 87 87 86 84 79 80 82 86 88 90 88 85 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 66 68 65 57 53 53 55 57 59 65 67 61 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 84 81 81 78 72 67 67 70 76 82 85 85 77 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 9 24 25 10 0 0 0 68 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 2 4 16 25 25 11 2 0 0 85 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 7 4 2 0 0 0 0 0 0 0 0 4 17 DATE OF START AND END FREEZING START = 1 DEC. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION TIRTASH LATITUDE 36 44 N DATA PROCESSING CENTER LONGITUDE 53 44 E ELEVATION -14 MET. MEAN AND EXTREMES FOR THE PERIOD 1981 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. 7.6 8.2 10.2 15.9 20.7 25.4 27.4 27.8 24.6 19.2 13.5 9.1 17.5 AVERAGE DEW POINT TEMPERATURE. IN C. 4.0 4.1 6.3 11.2 14.6 17.9 20.1 21.0 18.8 14.5 9.6 5.5 12.3 AVERAGE OF MIXING RATIO IN G/KG 5.15 5.20 6.05 8.44 10.57 13.06 14.97 15.76 13.87 10.49 7.64 5.76 9.75 AVERAGE OF VAPOUR PRESSURE HPA 8.33 8.41 9.77 13.58 16.94 20.86 23.84 25.07 22.12 16.82 12.31 9.31 15.61 AVERAGE OF SATURATION DEFICIT IN HPA 2.47 2.96 3.17 5.35 8.41 12.32 13.37 12.85 9.49 6.23 3.75 2.75 6.93 AVERAGE RELATIVE HUMIDITY IN PERCENT 80 78 79 76 71 66 67 69 73 76 80 80 75 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 91 90 89 88 85 81 81 83 88 90 92 91 87 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 67 64 66 63 56 52 53 54 56 58 64 66 60 NO. OF DAYS PRECIPITATION EQUAL 4 4 4 3 2 1 1 1 3 4 4 4 35 OR MORE THAN 5 MM.