IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1998 ****** ****** ****** 20.1 23.3 26.7 30.3 27.8 24.8 18.7 14.1 11.6 ****** 1999 5.1 10.9 11.9 19.1 23.5 29.1 29.3 26.6 25.3 19.2 12.3 7.4 24.2 2000 6.4 7.4 12.4 21.4 26.8 27.4 27.6 26.3 25.8 18.0 10.2 8.6 21.2 2001 4.6 7.9 14.1 21.0 25.4 28.0 30.4 27.7 24.6 19.7 13.4 10.6 25.8 2002 6.7 9.8 14.5 19.2 24.4 28.1 29.3 29.1 25.2 20.0 11.6 7.6 22.6 2003 7.1 10.7 13.4 20.2 21.5 29.1 32.1 28.2 23.8 20.0 10.9 7.2 25.0 MEAN 6.0 9.3 13.3 20.2 24.1 28.1 29.8 27.6 24.9 19.3 12.1 8.8 23.8 SD 1.06 1.60 1.12 0.94 1.83 0.95 1.50 1.05 0.70 0.78 1.47 1.85 1.24 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 ****** ****** ****** 13.0 15.5 18.9 23.1 20.0 16.3 10.1 5.3 3.2 ****** 1999 0.3 4.7 6.2 11.6 15.2 20.7 22.3 18.0 16.9 10.5 5.1 -1.1 10.9 2000 -0.1 0.3 4.9 13.5 18.3 19.3 19.9 17.7 18.1 10.1 4.5 2.4 10.7 2001 -2.2 0.8 6.8 13.1 17.0 20.2 23.1 19.5 16.5 11.3 5.6 5.0 11.4 2002 1.3 3.1 7.1 12.7 16.2 20.5 22.3 21.2 16.4 11.2 5.4 0.8 11.5 2003 0.7 4.0 7.0 13.2 14.0 21.6 25.0 20.7 15.0 11.7 3.2 0.7 11.4 MEAN 0.0 2.6 6.4 12.8 16.0 20.2 22.6 19.5 16.5 10.8 4.9 1.8 11.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 ****** ****** ****** 27.1 31.0 34.5 37.5 35.7 33.3 27.2 22.8 20.1 ****** 1999 10.0 17.1 17.6 26.5 31.8 37.5 36.3 35.2 33.7 28.0 19.5 15.8 25.7 2000 12.8 14.6 19.9 29.4 35.3 35.5 35.2 34.8 33.6 26.0 15.9 14.9 25.7 2001 11.4 14.9 21.4 28.9 33.7 35.7 37.7 35.9 32.7 28.0 21.1 16.1 26.5 2002 12.1 16.5 21.9 25.8 32.5 35.6 36.4 37.0 33.9 28.8 17.9 14.4 26.1 2003 13.4 17.4 19.9 27.1 29.0 36.7 39.2 35.7 32.5 28.3 18.6 13.6 26.0 MEAN 11.9 16.1 20.1 27.5 32.2 35.9 37.1 35.7 33.3 27.7 19.3 15.8 26.1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 ****** ****** ****** 14.1 15.5 15.6 14.4 15.7 17.0 17.1 17.5 16.9 ****** 1999 9.7 12.4 11.4 14.9 16.6 16.8 14.0 17.2 16.8 17.5 14.4 16.9 14.9 2000 12.9 14.3 15.0 15.9 17.0 16.2 15.3 17.1 15.5 15.9 11.4 12.5 14.9 2001 13.6 14.1 14.6 15.8 16.7 15.5 14.6 16.4 16.2 16.7 15.5 11.1 15.1 2002 10.8 13.4 14.8 13.1 16.3 15.1 14.1 15.8 17.5 17.6 12.5 13.6 14.5 2003 12.7 13.4 12.9 13.9 15.0 15.1 14.2 15.0 17.5 16.6 15.4 12.9 14.5 MEAN 11.9 13.5 13.7 14.6 16.2 15.7 14.4 16.2 16.7 16.9 14.4 14.0 14.9 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 ****** ****** ****** 10.80 10.84 10.41 12.68 11.43 9.83 7.37 5.81 5.63 ****** 1999 6.81 8.17 9.01 9.42 8.76 10.06 12.44 8.70 8.48 7.53 7.07 5.72 8.51 2000 5.82 6.30 8.96 10.27 11.77 11.57 9.73 9.43 9.36 9.32 8.11 7.07 8.98 2001 4.92 6.00 7.52 7.66 10.57 10.46 12.23 11.41 9.16 7.99 6.28 9.03 8.60 2002 6.77 6.30 6.66 10.34 10.35 11.44 13.57 12.64 9.74 7.59 8.47 6.41 9.19 2003 6.09 8.59 8.35 10.73 9.39 11.86 13.65 11.96 9.03 7.79 5.80 6.70 9.16 MEAN 6.09 7.08 8.10 9.87 10.28 10.97 12.39 10.93 9.27 7.94 6.93 6.77 8.88 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 ****** ****** ****** 13.04 13.03 12.00 13.85 12.68 11.89 10.27 8.76 8.17 ****** 1999 8.16 8.51 8.88 9.66 9.24 10.49 13.01 10.75 10.42 9.59 9.74 7.13 9.63 2000 7.12 7.09 15.25 14.26 16.24 12.55 11.52 11.83 11.32 11.44 9.21 8.14 11.33 2001 6.65 6.87 7.64 8.62 10.05 10.41 12.72 12.35 11.29 9.87 7.29 10.28 9.50 2002 7.45 7.16 7.33 9.84 9.86 11.13 13.03 14.46 12.14 9.44 9.15 7.13 9.84 2003 7.39 11.38 9.42 10.86 9.91 12.50 14.72 13.41 10.98 9.96 7.65 7.92 10.51 MEAN 7.36 8.20 9.71 11.05 11.39 11.52 13.15 12.58 11.35 10.10 8.64 8.13 10.26 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 ****** ****** ****** 13.10 14.45 11.59 13.08 12.19 11.28 9.25 7.52 7.05 ****** 1999 8.01 8.60 8.89 9.25 8.65 10.33 12.86 10.35 9.96 8.92 8.08 6.61 9.21 2000 6.86 6.69 14.21 14.71 16.09 12.94 11.39 11.63 11.01 10.70 8.08 7.95 11.02 2001 6.12 6.57 8.28 8.05 10.05 10.46 12.64 11.96 11.07 9.15 7.17 10.28 9.32 2002 7.72 7.29 7.01 11.57 10.40 11.20 12.98 14.16 11.39 9.07 8.71 6.91 9.87 2003 7.57 11.26 9.25 11.38 9.63 12.18 14.45 13.06 10.53 9.28 7.21 7.37 10.26 MEAN 7.26 8.09 9.53 11.35 11.55 11.45 12.91 12.23 10.88 9.40 7.80 7.70 10.01 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 1998 ***** ** ***** ** ***** ** 4.0 8 8.8 5 14.6 12 17.5 27 15.0 31 10.5 18 5.6 26 2.4 25 -2.0 8 ***** 1999 -10.6 3 -3.4 1 -1.0 8 3.2 12 1.0 6 17.0 7 15.8 20 9.2 23 10.0 30 6.2 27 -3.6 30 -5.4 6 -10.6 2000 -8.4 15 -5.4 4 -2.0 6 7.8 3 13.8 13 12.0 14 13.6 27 14.2 22 14.0 26 6.6 8 0.0 30 -3.4 30 -8.4 2001 -17.0 29 -4.4 1 -0.6 12 8.6 19 10.0 14 15.0 24 14.2 31 14.4 15 11.2 22 6.2 12 -2.2 21 0.0 18 -17.0 2002 -4.4 28 -5.6 5 -2.4 8 5.0 6 11.6 7 14.8 9 16.6 31 16.6 1 10.0 30 7.2 28 -2.6 30 -5.6 31 -5.6 2003 -5.0 2 -4.2 18 -6.4 3 5.0 19 5.2 2 16.4 7 18.4 4 15.4 10 9.4 28 8.2 13 -4.8 27 -10.8 13 -10.8 LOW. -17.0 29 -5.6 5 -6.4 3 3.2 12 1.0 6 12.0 14 13.6 27 9.2 23 9.4 28 5.6 26 -4.8 27 -10.8 13 -17.0 YEAR 2001 2002 2003 1999 1999 2000 2000 1999 2003 1998 2003 2003 2001 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 1998 ***** ** ***** ** ***** ** 32.0 18 36.5 12 37.5 3 43.5 8 40.0 18 38.0 6 35.0 1 26.0 10 25.0 11 ***** 1999 17.5 9 22.5 8 29.0 26 31.0 25 36.5 20 42.0 29 45.0 8 38.0 31 37.5 12 30.5 6 26.5 8 22.0 14 45.0 2000 20.5 28 21.0 26 29.5 24 33.0 21 39.0 26 41.5 28 40.5 9 37.5 4 36.5 2 31.5 1 26.0 2 24.0 1 41.5 2001 19.5 15 23.0 20 26.5 31 33.0 27 37.5 16 41.5 30 41.5 11 39.5 27 37.5 6 32.5 1 27.5 7 22.0 5 41.5 2002 20.7 8 22.5 12 26.5 14 34.0 29 36.5 20 40.5 30 39.5 18 39.5 19 36.5 4 33.0 6 25.0 12 23.0 13 40.5 2003 23.0 13 23.0 25 26.0 25 33.0 28 34.0 23 41.0 1 42.0 31 40.0 1 36.5 11 33.0 3 26.5 1 22.0 19 42.0 HIG. 23.0 13 23.0 20 29.5 24 34.0 29 39.0 26 42.0 29 45.0 8 40.0 18 38.0 6 35.0 1 27.5 7 25.0 11 45.0 YEAR 2003 2001 2000 2002 2000 1999 1999 1998 1998 1998 2001 1998 1999 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 1998 ***** ** ***** ** ***** ** 5.2 23 5.0 14 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** 1999 11.4 22 18.0 5 18.5 5 0.5 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.1 12 0.5 11 18.5 2000 9.0 29 6.5 8 4.5 25 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.5 10 4.5 27 9.0 2001 10.0 28 7.0 11 9.0 11 0.0 ** 1.0 4 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 9.5 17 10.0 2002 20.0 11 6.0 21 3.5 21 20.0 3 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 10.7 7 4.0 22 20.0 2003 11.0 17 1.0 6 19.0 13 4.5 21 0.0 ** 0.0 ** 0.5 21 0.0 ** 0.0 ** 0.0 ** 0.0 ** 7.6 6 19.0 HIG. 20.0 11 18.0 5 19.0 13 20.0 3 5.0 14 0.0 ** 0.5 21 0.0 ** 0.0 ** 0.0 ** 10.7 7 9.5 17 20.0 YEAR 2002 1999 2003 2002 1998 **** 2003 **** **** **** 2002 2001 2002 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1998 ****** ****** ****** 5.2 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ****** ***** 100.0 0.0 0.0 1999 26.4 26.0 39.0 1.2 0.0 0.0 0.0 0.0 0.0 0.0 2.1 0.5 95.2 96.0 1.3 0.0 2.7 2000 13.0 6.7 8.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16.8 10.0 54.5 50.8 0.0 0.0 49.2 2001 10.0 11.5 20.5 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 37.7 80.7 52.0 1.2 0.0 46.7 2002 41.6 6.0 3.5 20.7 0.0 0.0 0.0 0.0 0.0 0.0 15.2 6.5 93.5 54.7 22.1 0.0 23.2 2003 21.3 1.6 29.0 5.5 0.0 0.0 0.5 0.0 0.0 0.0 0.0 13.2 71.1 73.0 7.7 0.7 18.6 MEAN 22.5 10.4 20.0 5.4 1.0 0.0 0.1 0.0 0.0 0.0 5.7 11.3 76.4 69.3 8.4 0.0 22.2 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 *** *** *** 4 2 0 0 0 0 0 0 0 *** 1999 4 2 6 3 0 0 1 0 0 0 2 1 19 2000 3 2 2 0 0 0 0 0 0 0 5 5 17 2001 1 3 4 0 1 0 0 0 0 0 0 8 17 2002 5 1 1 2 0 0 0 0 0 0 3 2 14 2003 4 2 3 2 0 0 1 0 0 0 0 2 14 MEAN 3 2 3 2 1 0 0 0 0 0 2 3 16 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 1998 *** *** *** 1 1 0 0 0 0 0 0 0 *** 1999 4 2 5 0 0 0 0 0 0 0 2 0 13 2000 3 1 2 0 0 0 0 0 0 0 3 5 14 2001 1 3 4 0 1 0 0 0 0 0 0 8 17 2002 3 1 1 1 0 0 0 0 0 0 3 2 11 2003 4 1 3 2 0 0 0 0 0 0 0 2 12 MEAN 3 2 3 1 0 0 0 0 0 0 1 3 13 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 1998 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1999 2 1 1 0 0 0 0 0 0 0 0 0 4 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 2 0 0 1 0 0 0 0 0 0 1 0 4 2003 1 0 1 0 0 0 0 0 0 0 0 0 2 MEAN 1 0 0 0 0 0 0 0 0 0 0 0 1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 *** *** *** 59 49 37 37 37 41 47 51 57 *** 1999 84 74 77 55 40 33 39 34 37 46 64 78 55 2000 74 76 74 55 45 40 33 38 37 59 74 75 57 2001 71 72 59 41 40 32 34 37 38 45 52 81 50 2002 79 63 49 56 42 35 38 38 38 44 72 74 52 2003 73 74 63 56 42 34 33 36 40 43 57 76 52 MEAN 76 72 64 54 43 35 36 37 39 47 62 74 53 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 *** *** *** 36 30 22 22 22 23 27 29 34 *** 1999 63 42 44 29 20 16 23 18 20 24 41 38 32 2000 47 42 62 36 29 22 20 21 21 33 49 46 36 2001 50 40 30 22 19 18 19 20 22 25 28 54 29 2002 51 37 27 29 20 19 21 22 21 23 43 42 30 2003 48 54 39 30 24 20 20 22 22 25 33 52 32 MEAN 52 43 40 30 24 20 21 21 22 26 37 44 32 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 *** *** *** 38 33 20 20 20 24 32 37 41 *** 1999 73 52 52 28 18 16 21 18 21 29 47 49 35 2000 57 49 67 38 28 23 19 20 22 39 52 58 39 2001 56 47 39 20 20 19 20 22 25 30 38 68 34 2002 63 51 34 42 25 20 22 24 24 29 51 53 37 2003 59 66 45 38 26 21 22 23 25 30 46 61 39 MEAN 62 53 47 34 25 20 21 21 24 32 45 55 37 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 1998 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1999 4 0 0 0 0 0 0 0 0 0 0 8 12 2000 7 2 0 0 0 0 0 0 0 0 0 0 9 2001 6 1 0 0 0 0 0 0 0 0 0 0 7 2002 2 2 0 0 0 0 0 0 0 0 0 6 10 2003 2 1 2 0 0 0 0 0 0 0 2 6 13 MEAN 4 1 0 0 0 0 0 0 0 0 0 3 8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 1998 *** *** *** 1 3 5 24 13 3 0 0 0 *** 1999 0 0 0 1 0 10 21 2 2 0 0 0 36 2000 0 0 0 1 2 5 11 4 3 0 0 0 26 2001 0 0 0 0 3 11 23 12 1 0 0 0 50 2002 0 0 0 0 2 11 24 16 1 0 0 0 54 2003 0 0 0 1 0 19 27 12 0 0 0 0 59 MEAN 0 0 0 1 2 10 22 10 2 0 0 0 47 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 1998 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1999 1 0 0 0 0 0 0 0 0 0 0 0 1 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 3 0 0 0 0 0 0 0 0 0 0 0 3 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 1 0 0 0 0 0 0 0 0 0 0 0 1 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 1998 *** *** *** 10 24 30 31 31 25 8 0 0 *** 1999 0 0 0 3 24 30 30 31 26 9 0 0 153 2000 0 0 0 17 31 28 31 31 28 2 0 0 168 2001 0 0 0 12 28 30 31 31 25 7 0 0 164 2002 0 0 0 8 26 29 31 31 27 10 0 0 162 2003 0 0 0 10 16 30 31 29 25 5 0 0 146 MEAN 0 0 0 10 25 30 31 31 26 7 0 0 160 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 1998 *** *** *** 0 0 0 8 2 0 0 0 0 *** 1999 0 0 0 0 0 4 6 0 0 0 0 0 10 2000 0 0 0 0 0 3 1 0 0 0 0 0 4 2001 0 0 0 0 0 5 12 0 0 0 0 0 17 2002 0 0 0 0 0 1 0 0 0 0 0 0 1 2003 0 0 0 0 0 3 14 1 0 0 0 0 18 MEAN 0 0 0 0 0 3 7 1 0 0 0 0 11 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 1998 *** *** *** 0 0 0 0 0 0 0 0 0 *** 1999 0 0 0 0 0 0 1 0 0 0 0 0 1 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 BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 -------------- 1998 *** *** *** 0 0 0 0 0 0 0 0 6 *** 12 6 12 24 1999 17 4 2 0 0 0 0 0 0 0 2 21 46 11 5 3 8 2000 19 20 8 0 0 0 0 0 0 0 1 11 59 11 30 3 17 2001 23 18 2 0 0 0 0 0 0 0 4 1 48 11 20 3 12 2002 15 9 7 0 0 0 0 0 0 0 5 16 52 11 19 3 12 2003 18 7 5 0 0 0 0 0 0 0 10 13 53 11 16 3 15 MEAN 18 12 5 0 0 0 0 0 0 0 4 11 50 11 5 3 17 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 ****** ****** ****** 20.9 24.5 28.6 31.8 29.8 26.5 19.7 14.7 12.1 ****** 1999 5.3 11.1 12.2 19.8 25.3 31.0 30.2 28.6 26.6 20.4 12.5 7.9 19.2 2000 6.5 8.0 13.2 22.7 28.5 29.2 29.3 28.2 27.2 18.9 10.7 8.8 19.3 2001 5.0 8.5 14.9 22.6 27.6 30.1 32.0 29.6 26.1 20.8 13.8 10.7 20.2 2002 6.9 9.9 15.1 19.6 25.8 29.9 31.2 30.9 27.1 21.1 11.9 7.7 19.8 2003 7.5 11.5 14.1 20.9 23.1 31.0 33.6 30.0 25.2 21.0 11.2 7.2 19.7 MEAN 6.2 9.8 13.9 21.1 25.8 30.0 31.4 29.5 26.4 20.3 12.5 9.1 19.7 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 ****** ****** ****** 7.2 8.1 6.7 9.0 7.5 6.0 2.9 0.2 -0.9 ****** 1999 0.4 1.8 2.7 3.5 3.2 5.4 8.3 4.8 4.2 2.7 1.6 -1.8 3.1 2000 -1.7 -1.4 7.0 8.0 10.1 7.7 6.0 6.2 5.6 5.2 1.9 0.6 4.6 2001 -3.2 -1.8 0.9 1.8 5.1 4.7 8.2 7.3 5.5 3.2 -1.0 4.1 2.9 2002 -0.2 -1.0 -0.7 5.2 5.2 6.6 8.9 9.4 6.2 2.8 2.2 -1.3 3.6 2003 -0.9 4.6 2.7 6.0 4.0 7.8 10.1 8.5 5.0 3.2 -1.0 -0.3 4.1 MEAN -1.1 0.4 2.5 5.3 5.9 6.5 8.4 7.3 5.4 3.3 0.6 0.0 3.7 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 ****** ****** ****** 12.31 12.77 11.33 13.21 12.10 11.00 8.96 7.36 6.95 ****** 1999 7.66 8.43 8.93 9.44 8.88 10.29 12.77 9.93 9.62 8.68 8.29 6.48 9.12 2000 6.60 6.69 12.81 13.08 14.70 12.35 10.88 10.96 10.57 10.49 8.47 7.72 10.44 2001 5.90 6.48 7.81 8.11 10.22 10.44 12.53 11.91 10.51 9.00 6.92 9.86 9.14 2002 7.31 6.92 7.00 10.58 10.21 11.26 13.19 13.75 11.09 8.70 8.78 6.82 9.63 2003 7.01 10.41 9.01 10.99 9.64 12.18 14.27 12.81 10.18 9.01 6.89 7.33 9.98 MEAN 6.90 7.78 9.11 10.75 11.07 11.31 12.81 11.91 10.49 9.14 7.78 7.53 9.72 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 ****** ****** ****** 10.59 11.05 9.91 11.58 10.59 9.59 7.74 6.31 5.93 ****** 1999 6.43 7.14 7.58 8.14 7.75 9.05 11.17 8.71 8.40 7.50 7.06 5.48 7.87 2000 5.57 5.66 10.85 11.26 12.78 10.79 9.54 9.59 9.23 9.01 7.17 6.52 9.00 2001 4.96 5.48 6.68 7.05 8.92 9.15 11.00 10.42 9.16 7.78 5.92 8.33 7.90 2002 6.16 5.87 6.00 9.09 8.89 9.86 11.54 12.02 9.68 7.53 7.45 5.76 8.32 2003 5.91 8.81 7.69 9.46 8.37 10.68 12.54 11.21 8.86 7.79 5.87 6.18 8.61 MEAN 5.81 6.59 7.76 9.26 9.63 9.91 11.23 10.42 9.15 7.89 6.63 6.37 8.39 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 ****** ****** ****** 15.97 21.83 31.05 38.17 33.67 27.37 17.20 11.71 9.44 ****** 1999 3.03 6.76 7.70 16.49 26.67 38.75 34.01 32.95 29.08 18.11 8.63 6.19 19.03 2000 4.96 5.94 5.59 18.24 28.64 32.36 33.43 31.27 28.93 14.20 6.49 5.47 17.96 2001 4.56 6.54 11.58 22.13 29.70 35.47 38.78 33.02 26.98 18.34 11.12 5.17 20.28 2002 4.60 7.33 12.54 15.18 26.16 34.16 35.42 34.45 28.18 19.15 7.45 5.68 19.19 2003 5.26 5.63 9.71 16.84 21.48 35.97 41.27 32.80 25.24 18.51 8.76 4.89 18.86 MEAN 4.48 6.44 9.42 17.47 25.75 34.63 36.85 33.03 27.63 17.58 9.03 6.14 19.04 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 *** *** *** 44 38 26 26 27 29 35 39 44 *** 1999 73 56 58 38 26 22 28 23 26 33 51 55 41 2000 59 56 68 43 34 28 24 26 27 44 58 60 44 2001 59 53 43 27 26 23 24 26 28 33 39 67 37 2002 64 50 37 43 29 25 27 28 28 32 55 56 40 2003 60 65 49 41 31 25 25 27 29 33 45 63 41 MEAN 63 56 51 39 31 25 26 26 28 35 48 58 41 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 *** *** *** 62 49 37 37 37 41 47 51 57 *** 1999 87 78 79 56 40 33 39 34 37 46 67 78 56 2000 77 78 78 56 45 40 33 38 37 59 75 76 58 2001 73 73 63 41 40 32 34 37 38 45 52 85 51 2002 80 67 52 61 42 35 38 38 38 44 73 76 54 2003 75 77 64 59 42 34 33 36 40 43 59 77 53 MEAN 78 75 67 56 43 35 36 37 39 47 63 75 54 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1998 *** *** *** 32 29 20 20 20 22 27 29 34 *** 1999 61 40 43 26 18 15 21 17 19 24 39 38 30 2000 45 42 60 35 27 22 19 20 20 33 46 45 35 2001 48 39 30 20 18 17 19 20 22 24 28 53 28 2002 51 36 26 29 20 18 21 22 21 23 42 42 29 2003 48 51 38 29 23 19 20 22 22 25 33 50 32 MEAN 51 42 39 29 23 19 20 20 21 26 36 44 31 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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 1998 *** *** *** 1 1 0 0 0 0 0 0 0 *** 1999 2 2 3 0 0 0 0 0 0 0 0 0 7 2000 1 1 0 0 0 0 0 0 0 0 2 0 4 2001 1 1 2 0 0 0 0 0 0 0 0 3 7 2002 2 1 0 1 0 0 0 0 0 0 1 0 5 2003 2 0 2 0 0 0 0 0 0 0 0 2 6 MEAN 2 1 1 0 0 0 0 0 0 0 1 1 6 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. HIGHEST AND LOWEST LIMITS FOR 6 YEARS DURING 1998-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 15.6 17.6 20.6 24.6 26.0 34.4 32.0 31.0 27.6 20.0 18.4 19.0 1 YEAR - DAY 1999- 1 1999-21 2002-21 2002-26 2002-30 2003- 1 1998- 5 1998-22 1998- 6 2003- 3 2002- 2 1998- 1 LOW. DRY 03 -15.5 -5.4 -6.4 4.2 6.4 12.4 15.0 14.6 11.4 6.6 -4.6 -10.0 2 YEAR - DAY 2001-29 2000- 4 2003- 3 1998- 8 2003- 3 2000-14 2000-20 2000-20 1999-29 1999-27 2003-24 2003-13 HIG. WET 03 9.0 12.0 14.0 14.4 17.2 19.4 22.6 18.2 17.8 12.0 10.6 10.0 3 YEAR - DAY 2002- 8 2003- 5 2000-22 1998- 1 2000-16 2000-19 2002-23 2003- 1 1998-15 2000- 1 2002- 2 1998- 1 LOW. WET 03 -16.2 -5.8 -8.0 0.6 1.4 6.6 6.2 5.8 4.6 2.0 -6.2 -10.0 4 YEAR - DAY 2001-29 2000- 4 2003- 3 1999-12 2003- 3 2000-15 2000-20 1999-28 1998-18 1998-16 2003-24 2003-13 HIG. DRY 09 22.4 22.0 26.2 31.6 37.4 40.2 42.0 38.6 36.8 34.0 27.2 24.6 5 YEAR - DAY 2003-13 2001-20 2000-24 2003-28 2000-26 2001-30 1998- 8 1998-18 2001- 8 1998- 2 2001- 7 1998-11 LOW. DRY 09 -3.4 0.0 4.4 12.0 17.6 22.8 26.2 27.4 22.8 14.2 8.2 -0.8 6 YEAR - DAY 2001-28 2000- 8 2003- 2 1998- 7 2003- 1 2000-14 1999-13 1998- 7 2001-20 2000- 4 1999-30 2003-12 HIG. WET 09 11.0 14.2 18.4 20.6 24.2 19.4 22.0 20.4 18.8 16.4 14.4 11.8 7 YEAR - DAY 2002- 8 2003- 4 2000-25 1998-18 2000-15 1998-30 2003-31 2003- 1 2002- 5 1998- 1 1999-27 1999- 3 LOW. WET 09 -4.4 -0.8 0.8 6.0 8.2 10.4 13.0 11.0 11.0 9.4 3.2 -1.2 8 YEAR - DAY 2001-28 2000- 8 2003- 2 2002- 4 2003- 2 2001-28 2000-17 1998-28 1999-29 1998-10 2000-17 2003-12 HIG. DRY 15 17.8 19.4 26.6 31.6 37.8 39.6 42.4 37.6 36.4 32.2 23.0 19.6 9 YEAR - DAY 2003-13 1999-20 2000-24 2000-22 2000-27 1999-29 1998- 9 1998- 1 1998- 6 1998- 1 1999- 1 1998-23 LOW. DRY 15 -5.4 0.4 2.4 11.0 15.0 21.6 27.8 28.0 19.4 11.0 3.0 -3.0 10 YEAR - DAY 2001-29 2002- 4 2003- 1 1999-10 2003- 1 2000-13 1998-25 2001-12 2001-20 2000- 4 2003-24 2003-12 HIG. WET 15 10.0 13.0 21.0 23.4 24.0 19.4 22.4 19.6 18.4 14.8 11.4 10.0 11 YEAR - DAY 2003-28 2003-23 2000-24 2002-26 2000-15 2000-11 2003-31 2002-29 1998- 8 1998- 1 1999- 1 2001- 5 LOW. WET 15 -6.4 -1.0 -0.4 6.0 6.4 13.0 12.6 12.8 10.0 6.6 0.6 -3.0 12 YEAR - DAY 2001-29 2001-12 2003- 1 2002- 4 2003- 1 2000-14 2000-19 1999-26 2003-27 1998-10 2000-17 2003-12 HIG. MIN. 14.4 15.0 20.0 23.0 22.8 29.2 32.0 27.4 26.0 18.0 16.4 14.0 13 YEAR - DAY 2002- 8 1999-21 1999-27 2003-29 2002-21 2003- 1 1998- 9 2003- 1 1998- 6 2000- 1 2002- 2 2001-21 LOW. MIN. -17.0 -5.6 -6.4 3.2 1.0 12.0 13.6 9.2 9.4 5.6 -4.8 -10.8 14 YEAR - DAY 2001-29 2002- 5 2003- 3 1999-12 1999- 6 2000-14 2000-27 1999-23 2003-28 1998-26 2003-27 2003-13 HIG. MAX. 23.0 23.0 29.5 34.0 39.0 42.0 45.0 40.0 38.0 35.0 27.5 25.0 15 YEAR - DAY 2003-13 2001-20 2000-24 2002-29 2000-26 1999-29 1999- 8 1998-18 1998- 6 1998- 1 2001- 7 1998-11 LOW. MAX. -1.2 3.0 5.0 15.0 20.0 24.5 29.5 31.0 23.5 15.0 8.2 4.5 16 YEAR - DAY 2001-27 2001-12 2001-11 2003-18 2003- 1 2000-13 1999-13 2001-13 2001-20 2000- 4 1999-30 2003-13 HIG. PPTN 20.0 18.0 19.0 20.0 5.0 0.0 0.5 0.0 0.0 0.0 10.7 9.5 17 YEAR - DAY 2002-11 1999- 5 2003-13 2002- 3 1998-14 999-** 2003-21 999-** 999-** 999-** 2002- 7 2001-17 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 6 YEARS DURING 1998-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 19.6 18.6 18.2 17.8 17.0 17.2 15.6 18.6 18.2 19.4 19.2 21.6 18 YEAR - DAY 2003-12 2000- 6 2000-17 1998-12 1999-13 1999-27 1999-22 2000-29 1999-16 1998-16 2003-27 1998-11 DRY 15 - DRY 09 10.8 10.8 12.6 11.0 7.0 6.8 4.6 4.4 7.2 7.8 15.0 13.6 19 YEAR - DAY 2002-12 2002-18 2001-10 2002-13 2002-13 2003-25 2003-31 2001-31 1999-23 2003-30 2003- 6 2002-22 DRY 15 - DRY 03 14.6 16.0 15.6 17.4 20.2 17.4 17.2 18.2 16.8 14.2 16.0 15.0 20 YEAR - DAY 2003-13 2002-12 2001-22 1999-13 1999-25 1999-27 1999-22 2000-29 1999-14 1998- 1 2000-30 1999-23 WET 09 - WET 03 14.6 13.0 17.8 12.2 11.6 8.2 8.0 8.8 8.6 11.2 13.0 13.6 21 YEAR - DAY 2001-29 2003- 7 2000-10 2000- 4 2000-15 2000- 5 2001- 2 2000-29 2002- 9 1998-16 1999-27 2003-14 WET 15 - WET 09 4.8 5.6 6.8 11.4 5.6 5.6 2.0 4.0 3.2 5.0 6.8 8.8 22 YEAR - DAY 2001-29 2003-15 2001-18 1998-26 2000-21 2001- 9 1998-16 1998-28 2003-27 1999-28 1999-26 1999- 3 WET 15 - WET 03 10.8 11.8 15.4 15.6 11.4 10.4 8.4 8.6 8.4 7.8 8.4 9.2 23 YEAR - DAY 2001-30 2003- 7 2000-21 1998-26 2000-15 2000-18 2000-28 2000-29 1998-21 1998-20 2003-27 2000-31 DAY BY DAY DRY 03 18.6 16.8 15.2 13.0 10.0 14.2 7.2 7.6 8.2 10.6 15.0 17.4 24 YEAR - DAY 1999- 2 2000-14 2000-10 2002-26 2002-10 2003- 1 2003- 2 2002-29 1998- 7 1998-31 2001-20 2002-23 DAY BY DAY WET 03 11.8 11.8 14.2 7.4 5.2 11.0 8.2 5.0 8.6 6.4 12.0 11.0 25 YEAR - DAY 1999- 2 2000-14 2000-10 2000-26 2002-10 2000-19 2002-24 2002-15 1998-16 1998-10 2001-20 2002-23 DAY BY DAY DRY 09 14.4 15.4 19.8 10.4 9.0 9.0 8.0 5.8 6.8 10.2 12.8 11.2 26 YEAR - DAY 1999- 2 2000- 8 2001-11 2003-18 2002-16 2000-13 1999-26 1998- 3 1998-12 2000- 4 2003-15 2001- 5 DAY BY DAY WET 09 8.6 9.8 9.0 8.4 8.2 7.8 3.6 4.0 3.2 5.0 6.2 6.0 27 YEAR - DAY 1999- 2 2003-19 2001-11 1998- 6 2000-21 2001-29 1999-10 1998-28 1998- 5 1999-28 2001-19 2000-16 DAY BY DAY DRY 15 10.4 10.6 14.6 11.4 9.8 13.0 6.6 5.2 5.6 9.2 10.0 14.2 28 YEAR - DAY 1999-10 2003-19 2002-21 1998- 6 1999-21 2000-13 2003- 2 1998-24 1998-12 2000- 4 2000- 6 2002-22 DAY BY DAY WET 15 7.6 8.0 8.8 11.6 5.4 6.2 4.4 3.8 3.0 4.8 6.8 7.2 29 YEAR - DAY 2002- 9 2003-27 2001-11 2002-27 2000-16 2000-13 1999-10 2003- 1 2002-12 2000- 4 2001-19 2003-21 DAY BY DAY MIN. 13.4 11.8 13.4 12.4 14.0 11.4 6.8 9.8 7.6 7.6 15.4 11.4 30 YEAR - DAY 1999- 2 1999-22 2001-11 1999-10 1999- 6 2003- 1 2003- 2 1999-24 2002- 7 1998-31 2001-20 2002-23 DAY BY DAY MAX. 17.0 12.5 19.5 9.5 8.0 11.5 6.5 4.5 6.0 10.5 13.0 12.5 31 YEAR - DAY 1999- 2 2003-19 2001-11 2003-18 1999-21 2000-13 1999- 8 1998-30 1998-12 2000- 4 2003-15 2003-11 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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.***** ***** ***** 20.1 23.3 26.7 30.3 27.8 24.8 18.7 14.1 11.6 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** 13.0 15.5 18.9 23.1 20.0 16.3 10.1 5.3 3.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** 27.1 31.0 34.5 37.5 35.7 33.3 27.2 22.8 20.1 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** 14.1 15.5 15.6 14.4 15.7 17.0 17.1 17.5 16.9 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** 10.80 10.84 10.41 12.68 11.43 9.83 7.37 5.81 5.63 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** 13.04 13.03 12.00 13.85 12.68 11.89 10.27 8.76 8.17 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** 13.10 14.45 11.59 13.08 12.19 11.28 9.25 7.52 7.05 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** 4.0 8.8 14.6 17.5 15.0 10.5 5.6 2.4 -2.0 ****** DAY ** ** ** 8 5 12 27 31 18 26 25 8 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** 32.0 36.5 37.5 43.5 40.0 38.0 35.0 26.0 25.0 ****** DAY ** ** ** 18 12 3 8 18 6 1 10 11 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** 5.2 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ****** DAY ** ** ** 23 14 ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** 5.2 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** 100.0 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. *** *** *** 4 2 0 0 0 0 0 0 0 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** 1 1 0 0 0 0 0 0 0 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** 0 0 0 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** 59 49 37 37 37 41 47 51 57 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** 36 30 22 22 22 23 27 29 34 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** 38 33 20 20 20 24 32 37 41 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 0 0 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** 1 3 5 24 13 3 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 10 24 30 31 31 25 8 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 8 2 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** 0 0 0 0 0 0 0 0 6 *** DATE OF START AND END FREEZING START = 6 DEC. END = 24 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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. 5.1 10.9 11.9 19.1 23.5 29.1 29.3 26.6 25.3 19.2 12.3 7.4 18.3 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.3 4.7 6.2 11.6 15.2 20.7 22.3 18.0 16.9 10.5 5.1 -1.1 10.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.0 17.1 17.6 26.5 31.8 37.5 36.3 35.2 33.7 28.0 19.5 15.8 25.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 9.7 12.4 11.4 14.9 16.6 16.8 14.0 17.2 16.8 17.5 14.4 16.9 14.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 6.81 8.17 9.01 9.42 8.76 10.06 12.44 8.70 8.48 7.53 7.07 5.72 8.51 MEAN OF MIXING RATIO AT 09 GMT. 8.16 8.51 8.88 9.66 9.24 10.49 13.01 10.75 10.42 9.59 9.74 7.13 9.63 MEAN OF MIXING RATIO AT 15 GMT. 8.01 8.60 8.89 9.25 8.65 10.33 12.86 10.35 9.96 8.92 8.08 6.61 9.21 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -10.6 -3.4 -1.0 3.2 1.0 17.0 15.8 9.2 10.0 6.2 -3.6 -5.4 -10.6 DAY 3 1 8 12 6 7 20 23 30 27 30 6 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.5 22.5 29.0 31.0 36.5 42.0 45.0 38.0 37.5 30.5 26.5 22.0 45.0 DAY 9 8 26 25 20 29 8 31 12 6 8 14 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.4 18.0 18.5 0.5 0.0 0.0 0.0 0.0 0.0 0.0 1.1 0.5 18.5 DAY 22 5 5 6 ** ** ** ** ** ** 12 11 MONTHLY TOTAL PRECIPITATION IN MM. 26.4 26.0 39.0 1.2 0.0 0.0 0.0 0.0 0.0 0.0 2.1 0.5 95.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 96.0 1.3 0.0 2.7 NO. OF DAYS WITH PRECIPITATION. 4 2 6 3 0 0 1 0 0 0 2 1 19 NO. OF DAYS PRECIPITATION EQUAL 4 2 5 0 0 0 0 0 0 0 2 0 13 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 1 0 0 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 74 77 55 40 33 39 34 37 46 64 78 55 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 63 42 44 29 20 16 23 18 20 24 41 38 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 52 52 28 18 16 21 18 21 29 47 49 35 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 0 0 0 0 0 0 0 0 0 0 8 12 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 0 10 21 2 2 0 0 0 36 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 24 30 30 31 26 9 0 0 153 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 6 0 0 0 0 0 10 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 17 4 2 0 0 0 0 0 0 0 2 21 46 DATE OF START AND END FREEZING START = 5 NOV. END = 8 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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. 6.4 7.4 12.4 21.4 26.8 27.4 27.6 26.3 25.8 18.0 10.2 8.6 18.2 AVERAGE OF MINIMUM TEMPERATURE IN C. -0.1 0.3 4.9 13.5 18.3 19.3 19.9 17.7 18.1 10.1 4.5 2.4 10.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.8 14.6 19.9 29.4 35.3 35.5 35.2 34.8 33.6 26.0 15.9 14.9 25.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.9 14.3 15.0 15.9 17.0 16.2 15.3 17.1 15.5 15.9 11.4 12.5 14.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 5.82 6.30 8.96 10.27 11.77 11.57 9.73 9.43 9.36 9.32 8.11 7.07 8.98 MEAN OF MIXING RATIO AT 09 GMT. 7.12 7.09 15.25 14.26 16.24 12.55 11.52 11.83 11.32 11.44 9.21 8.14 11.33 MEAN OF MIXING RATIO AT 15 GMT. 6.86 6.69 14.21 14.71 16.09 12.94 11.39 11.63 11.01 10.70 8.08 7.95 11.02 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.4 -5.4 -2.0 7.8 13.8 12.0 13.6 14.2 14.0 6.6 0.0 -3.4 -8.4 DAY 15 4 6 3 13 14 27 22 26 8 30 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.5 21.0 29.5 33.0 39.0 41.5 40.5 37.5 36.5 31.5 26.0 24.0 41.5 DAY 28 26 24 21 26 28 9 4 2 1 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 9.0 6.5 4.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6.5 4.5 9.0 DAY 29 8 25 ** ** ** ** ** ** ** 10 27 MONTHLY TOTAL PRECIPITATION IN MM. 13.0 6.7 8.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16.8 10.0 54.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.8 0.0 0.0 49.2 NO. OF DAYS WITH PRECIPITATION. 3 2 2 0 0 0 0 0 0 0 5 5 17 NO. OF DAYS PRECIPITATION EQUAL 3 1 2 0 0 0 0 0 0 0 3 5 14 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 74 76 74 55 45 40 33 38 37 59 74 75 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 47 42 62 36 29 22 20 21 21 33 49 46 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 57 49 67 38 28 23 19 20 22 39 52 58 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 2 0 0 0 0 0 0 0 0 0 0 9 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 2 5 11 4 3 0 0 0 26 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 17 31 28 31 31 28 2 0 0 168 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 1 0 0 0 0 0 4 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 19 20 8 0 0 0 0 0 0 0 1 11 59 DATE OF START AND END FREEZING START = 30 NOV. END = 17 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. MEAN AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.6 7.9 14.1 21.0 25.4 28.0 30.4 27.7 24.6 19.7 13.4 10.6 18.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.2 0.8 6.8 13.1 17.0 20.2 23.1 19.5 16.5 11.3 5.6 5.0 11.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.4 14.9 21.4 28.9 33.7 35.7 37.7 35.9 32.7 28.0 21.1 16.1 26.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.6 14.1 14.6 15.8 16.7 15.5 14.6 16.4 16.2 16.7 15.5 11.1 15.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 4.92 6.00 7.52 7.66 10.57 10.46 12.23 11.41 9.16 7.99 6.28 9.03 8.60 MEAN OF MIXING RATIO AT 09 GMT. 6.65 6.87 7.64 8.62 10.05 10.41 12.72 12.35 11.29 9.87 7.29 10.28 9.50 MEAN OF MIXING RATIO AT 15 GMT. 6.12 6.57 8.28 8.05 10.05 10.46 12.64 11.96 11.07 9.15 7.17 10.28 9.32 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.0 -4.4 -0.6 8.6 10.0 15.0 14.2 14.4 11.2 6.2 -2.2 0.0 -17.0 DAY 29 1 12 19 14 24 31 15 22 12 21 18 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 19.5 23.0 26.5 33.0 37.5 41.5 41.5 39.5 37.5 32.5 27.5 22.0 41.5 DAY 15 20 31 27 16 30 11 27 6 1 7 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 7.0 9.0 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 9.5 10.0 DAY 28 11 11 ** 4 ** ** ** ** ** ** 17 MONTHLY TOTAL PRECIPITATION IN MM. 10.0 11.5 20.5 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 37.7 80.7 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 52.0 1.2 0.0 46.7 NO. OF DAYS WITH PRECIPITATION. 1 3 4 0 1 0 0 0 0 0 0 8 17 NO. OF DAYS PRECIPITATION EQUAL 1 3 4 0 1 0 0 0 0 0 0 8 17 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 71 72 59 41 40 32 34 37 38 45 52 81 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 50 40 30 22 19 18 19 20 22 25 28 54 29 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 56 47 39 20 20 19 20 22 25 30 38 68 34 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 6 1 0 0 0 0 0 0 0 0 0 0 7 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 3 11 23 12 1 0 0 0 50 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 0 0 0 0 0 0 0 0 0 0 0 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 12 28 30 31 31 25 7 0 0 164 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 12 0 0 0 0 0 17 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 23 18 2 0 0 0 0 0 0 0 4 1 48 DATE OF START AND END FREEZING START = 20 NOV. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. MEAN AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 6.7 9.8 14.5 19.2 24.4 28.1 29.3 29.1 25.2 20.0 11.6 7.6 18.8 AVERAGE OF MINIMUM TEMPERATURE IN C. 1.3 3.1 7.1 12.7 16.2 20.5 22.3 21.2 16.4 11.2 5.4 0.8 11.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.1 16.5 21.9 25.8 32.5 35.6 36.4 37.0 33.9 28.8 17.9 14.4 26.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.8 13.4 14.8 13.1 16.3 15.1 14.1 15.8 17.5 17.6 12.5 13.6 14.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 6.77 6.30 6.66 10.34 10.35 11.44 13.57 12.64 9.74 7.59 8.47 6.41 9.19 MEAN OF MIXING RATIO AT 09 GMT. 7.45 7.16 7.33 9.84 9.86 11.13 13.03 14.46 12.14 9.44 9.15 7.13 9.84 MEAN OF MIXING RATIO AT 15 GMT. 7.72 7.29 7.01 11.57 10.40 11.20 12.98 14.16 11.39 9.07 8.71 6.91 9.87 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -4.4 -5.6 -2.4 5.0 11.6 14.8 16.6 16.6 10.0 7.2 -2.6 -5.6 -5.6 DAY 28 5 8 6 7 9 31 1 30 28 30 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.7 22.5 26.5 34.0 36.5 40.5 39.5 39.5 36.5 33.0 25.0 23.0 40.5 DAY 8 12 14 29 20 30 18 19 4 6 12 13 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 6.0 3.5 20.0 0.0 0.0 0.0 0.0 0.0 0.0 10.7 4.0 20.0 DAY 11 21 21 3 ** ** ** ** ** ** 7 22 MONTHLY TOTAL PRECIPITATION IN MM. 41.6 6.0 3.5 20.7 0.0 0.0 0.0 0.0 0.0 0.0 15.2 6.5 93.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 54.7 22.1 0.0 23.2 NO. OF DAYS WITH PRECIPITATION. 5 1 1 2 0 0 0 0 0 0 3 2 14 NO. OF DAYS PRECIPITATION EQUAL 3 1 1 1 0 0 0 0 0 0 3 2 11 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 0 1 0 0 0 0 0 0 1 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 63 49 56 42 35 38 38 38 44 72 74 52 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 37 27 29 20 19 21 22 21 23 43 42 30 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 63 51 34 42 25 20 22 24 24 29 51 53 37 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 2 0 0 0 0 0 0 0 0 0 6 10 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 2 11 24 16 1 0 0 0 54 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 8 26 29 31 31 27 10 0 0 162 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. 15 9 7 0 0 0 0 0 0 0 5 16 52 DATE OF START AND END FREEZING START = 19 NOV. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 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. 7.1 10.7 13.4 20.2 21.5 29.1 32.1 28.2 23.8 20.0 10.9 7.2 18.7 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.7 4.0 7.0 13.2 14.0 21.6 25.0 20.7 15.0 11.7 3.2 0.7 11.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 13.4 17.4 19.9 27.1 29.0 36.7 39.2 35.7 32.5 28.3 18.6 13.6 26.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.7 13.4 12.9 13.9 15.0 15.1 14.2 15.0 17.5 16.6 15.4 12.9 14.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 6.09 8.59 8.35 10.73 9.39 11.86 13.65 11.96 9.03 7.79 5.80 6.70 9.16 MEAN OF MIXING RATIO AT 09 GMT. 7.39 11.38 9.42 10.86 9.91 12.50 14.72 13.41 10.98 9.96 7.65 7.92 10.51 MEAN OF MIXING RATIO AT 15 GMT. 7.57 11.26 9.25 11.38 9.63 12.18 14.45 13.06 10.53 9.28 7.21 7.37 10.26 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -5.0 -4.2 -6.4 5.0 5.2 16.4 18.4 15.4 9.4 8.2 -4.8 -10.8 -10.8 DAY 2 18 3 19 2 7 4 10 28 13 27 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 23.0 23.0 26.0 33.0 34.0 41.0 42.0 40.0 36.5 33.0 26.5 22.0 42.0 DAY 13 25 25 28 23 1 31 1 11 3 1 19 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 1.0 19.0 4.5 0.0 0.0 0.5 0.0 0.0 0.0 0.0 7.6 19.0 DAY 17 6 13 21 ** ** 21 ** ** ** ** 6 MONTHLY TOTAL PRECIPITATION IN MM. 21.3 1.6 29.0 5.5 0.0 0.0 0.5 0.0 0.0 0.0 0.0 13.2 71.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 73.0 7.7 0.7 18.6 NO. OF DAYS WITH PRECIPITATION. 4 2 3 2 0 0 1 0 0 0 0 2 14 NO. OF DAYS PRECIPITATION EQUAL 4 1 3 2 0 0 0 0 0 0 0 2 12 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 0 0 0 0 0 0 0 0 0 2 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 73 74 63 56 42 34 33 36 40 43 57 76 52 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 48 54 39 30 24 20 20 22 22 25 33 52 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 59 66 45 38 26 21 22 23 25 30 46 61 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 2 1 2 0 0 0 0 0 0 0 2 6 13 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 0 19 27 12 0 0 0 0 59 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 10 16 30 31 29 25 5 0 0 146 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 14 1 0 0 0 0 18 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. 18 7 5 0 0 0 0 0 0 0 10 13 53 DATE OF START AND END FREEZING START = 16 NOV. END = 15 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. MEAN AND EXTREMES FOR THE PERIOD 1998 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. 6.0 9.3 13.3 20.2 24.1 28.1 29.8 27.6 24.9 19.3 12.1 8.8 18.6 SD OF MEAN DAILY TEMPERATURE IN C. 1.06 1.60 1.12 0.94 1.83 0.95 1.50 1.05 0.70 0.78 1.47 1.85 1.24 AVERAGE OF MINIMUM TEMPERATURE IN C. 0.0 2.6 6.4 12.8 16.0 20.2 22.6 19.5 16.5 10.8 4.9 1.8 11.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.9 16.1 20.1 27.5 32.2 35.9 37.1 35.7 33.3 27.7 19.3 15.8 26.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.9 13.5 13.7 14.6 16.2 15.7 14.4 16.2 16.7 16.9 14.4 14.0 14.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 6.09 7.08 8.10 9.87 10.28 10.97 12.39 10.93 9.27 7.94 6.93 6.77 8.88 MEAN OF MIXING RATIO AT 09 GMT. 7.36 8.20 9.71 11.05 11.39 11.52 13.15 12.58 11.35 10.10 8.64 8.13 10.26 MEAN OF MIXING RATIO AT 15 GMT. 7.26 8.09 9.53 11.35 11.55 11.45 12.91 12.23 10.88 9.40 7.80 7.70 10.01 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.0 -5.6 -6.4 3.2 1.0 12.0 13.6 9.2 9.4 5.6 -4.8 -10.8 -17.0 YEAR - DAY 1-29 2- 5 3- 3 99-12 99- 6 0-14 0-27 99-23 3-28 98-26 3-27 3-13 1-29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 23.0 23.0 29.5 34.0 39.0 42.0 45.0 40.0 38.0 35.0 27.5 25.0 45.0 YEAR - DAY 3-13 1-20 0-24 2-29 0-26 99-29 99- 8 98-18 98- 6 98- 1 1- 7 98-11 99- 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 18.0 19.0 20.0 5.0 0.0 0.5 0.0 0.0 0.0 10.7 9.5 20.0 YEAR - DAY 2-11 99- 5 3-13 2- 3 98-14 **-** 3-21 **-** **-** **-** 2- 7 1-17 2-11 MONTHLY TOTAL PRECIPITATION IN MM. 22.5 10.4 20.0 5.4 1.0 0.0 0.1 0.0 0.0 0.0 5.7 11.3 76.4 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 69.3 8.4 0.0 22.2 NO. OF DAYS WITH PRECIPITATION. 3 2 3 2 1 0 0 0 0 0 2 3 16 NO. OF DAYS PRECIPITATION EQUAL 3 2 3 1 0 0 0 0 0 0 1 3 13 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 72 64 54 43 35 36 37 39 47 62 74 53 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 43 40 30 24 20 21 21 22 26 37 44 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 62 53 47 34 25 20 21 21 24 32 45 55 37 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 4 1 0 0 0 0 0 0 0 0 0 3 8 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 1 2 10 22 10 2 0 0 0 47 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 0 0 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 10 25 30 31 31 26 7 0 0 160 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 7 1 0 0 0 0 11 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. 18 12 5 0 0 0 0 0 0 0 4 11 50 DATE OF START AND END FREEZING START = 5 NOV. END = 17 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION BAHABAD LATITUDE 31 52 N DATA PROCESSING CENTER LONGITUDE 56 1 E ELEVATION 5600 MET. MEAN AND EXTREMES FOR THE PERIOD 1998 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. 6.2 9.8 13.9 21.1 25.8 30.0 31.4 29.5 26.4 20.3 12.5 9.1 19.7 AVERAGE DEW POINT TEMPERATURE. IN C. -1.1 0.4 2.5 5.3 5.9 6.5 8.4 7.3 5.4 3.3 0.6 0.0 3.7 AVERAGE OF MIXING RATIO IN G/KG 6.90 7.78 9.11 10.75 11.07 11.31 12.81 11.91 10.49 9.14 7.78 7.53 9.72 AVERAGE OF VAPOUR PRESSURE HPA 5.81 6.59 7.76 9.26 9.63 9.91 11.23 10.42 9.15 7.89 6.63 6.37 8.39 AVERAGE OF SATURATION DEFICIT IN HPA 4.48 6.44 9.42 17.47 25.75 34.63 36.85 33.03 27.63 17.58 9.03 6.14 19.04 AVERAGE RELATIVE HUMIDITY IN PERCENT 63 56 51 39 31 25 26 26 28 35 48 58 41 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 78 75 67 56 43 35 36 37 39 47 63 75 54 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 51 42 39 29 23 19 20 20 21 26 36 44 31 NO. OF DAYS PRECIPITATION EQUAL 2 1 1 0 0 0 0 0 0 0 1 1 6 OR MORE THAN 5 MM.