IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 1 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. AVERAGE OF MEAN DAILY TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MAX-MIN 1970 ****** ****** ****** ****** ****** ****** ****** 25.6 18.6 14.4 9.5 3.0 ****** 1971 0.6 3.5 10.3 16.0 23.3 24.6 24.4 23.9 17.4 14.4 9.7 5.2 24.0 1972 -1.6 -3.0 7.6 14.1 16.8 23.2 23.4 21.4 18.7 15.2 10.3 -0.3 26.4 1973 0.5 6.2 9.2 16.9 21.2 25.9 26.1 24.1 19.5 15.2 7.6 1.9 25.6 1974 -2.1 1.2 11.2 15.7 21.2 24.4 24.9 21.9 16.3 10.4 5.7 3.1 27.0 1975 0.3 4.6 9.1 15.2 21.5 27.4 27.9 21.7 21.3 11.2 4.7 -0.7 28.6 1976 1.9 0.7 2.7 11.6 22.7 25.1 ****** 25.6 20.7 16.3 4.6 1.8 ****** 1977 -2.4 5.0 15.4 16.9 22.0 25.3 25.5 26.8 22.9 16.9 8.8 5.1 29.2 1978 2.3 4.8 8.3 16.6 21.2 24.4 24.6 22.5 19.0 14.6 7.3 6.8 22.3 1979 4.1 5.2 7.3 16.2 16.6 23.3 25.5 21.7 18.4 16.7 8.5 3.1 22.4 1980 0.2 3.4 9.8 19.4 20.8 23.2 24.2 22.3 18.7 15.5 11.3 5.4 24.0 1981 3.2 4.8 9.9 18.3 20.6 23.5 25.1 20.3 15.8 10.7 7.8 6.7 21.9 1982 ****** ****** 6.9 15.9 21.9 24.3 24.3 23.9 18.2 19.2 10.4 -1.2 ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 3.9 7.2 8.7 17.7 19.9 25.3 25.5 23.9 ****** ****** ****** ****** ****** 1986 2.0 3.1 4.9 14.1 20.4 24.0 24.0 21.6 19.4 17.3 9.1 2.2 22.0 1987 ****** 5.9 10.0 14.7 19.6 22.5 24.3 25.8 22.3 14.8 10.5 6.5 ****** 1988 4.0 4.5 8.9 15.6 21.4 26.0 27.5 23.6 19.9 15.6 4.5 5.7 23.5 1989 -0.4 -0.1 8.3 14.2 17.8 25.0 26.2 23.2 21.4 16.0 9.5 5.8 26.6 1990 2.4 5.1 8.0 14.6 22.4 25.0 25.0 25.4 21.4 13.8 9.8 3.3 23.0 1991 4.0 2.8 8.8 15.3 19.6 24.5 25.1 23.4 17.1 13.2 9.1 5.8 22.3 1992 0.3 3.5 8.1 12.9 16.7 24.2 24.7 22.4 17.8 14.5 12.0 5.4 24.4 1993 ****** ****** ****** ****** ****** ****** 26.2 25.0 20.5 ****** 11.5 6.3 ****** 1994 3.8 4.2 11.5 14.5 20.8 24.9 25.6 25.3 17.0 ****** ****** ****** ****** 1995 4.8 5.6 7.8 14.8 20.1 24.2 29.0 25.5 ****** 14.4 10.4 3.4 ****** 1996 -0.3 6.4 8.7 16.4 20.5 24.8 24.5 22.9 23.6 14.2 8.9 5.4 25.1 1997 3.2 3.4 7.9 14.1 19.2 25.1 26.9 24.6 21.4 16.5 8.1 4.6 23.7 1998 3.2 6.1 10.3 16.2 20.4 22.9 26.2 25.4 22.2 15.6 12.1 10.9 23.0 1999 4.2 7.6 9.1 15.8 20.3 25.9 25.8 24.6 21.1 18.0 9.5 7.5 21.7 2000 3.6 5.1 8.8 18.8 24.4 24.5 24.3 24.7 23.3 17.6 8.8 6.8 21.1 2001 2.7 5.9 11.5 18.3 23.2 25.4 26.1 24.6 20.9 17.8 11.3 8.3 23.4 2002 4.7 6.9 11.9 15.8 21.4 25.4 24.8 25.0 20.2 17.6 10.6 4.6 20.8 2003 5.0 7.8 10.5 17.4 18.2 24.1 27.6 24.2 20.3 17.4 8.7 4.9 22.7 MEAN 2.1 4.4 9.1 15.8 20.5 24.6 25.5 23.8 19.8 15.3 9.0 4.6 23.4 SD 2.18 2.42 2.25 1.74 1.91 1.04 1.29 1.59 2.08 2.15 2.07 2.66 1.95 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 2 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. AVERAGE OF MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 17.4 10.0 4.3 -0.6 -5.9 ****** 1971 -8.1 -4.3 2.2 10.3 16.8 16.9 16.9 16.4 9.0 4.8 1.7 -3.5 6.6 1972 -7.8 -10.6 1.3 6.0 8.6 14.6 15.6 13.3 9.7 5.5 1.4 -6.9 4.2 1973 -8.0 -1.8 1.0 8.1 12.4 17.8 18.0 16.6 10.4 5.1 -3.4 -10.0 5.5 1974 -11.0 -6.6 4.4 7.7 12.3 16.2 17.6 13.7 7.7 1.2 0.9 -4.6 5.0 1975 -7.0 -1.6 2.0 8.5 13.6 19.9 20.8 15.1 13.8 4.6 -1.0 -7.3 6.8 1976 -4.9 -6.3 -3.9 5.4 14.1 18.4 ****** 17.5 13.2 8.5 -4.7 -6.0 ****** 1977 -8.4 -4.1 5.8 9.2 12.0 15.2 16.7 17.9 13.1 8.3 0.4 -3.6 6.9 1978 -6.0 -2.2 0.3 7.9 12.9 16.2 18.0 15.1 9.6 5.2 0.2 -0.8 6.4 1979 -2.2 -2.6 -0.0 8.5 9.1 15.3 18.7 14.1 9.6 7.3 -0.0 -5.1 6.1 1980 -5.3 -3.9 1.8 11.6 13.5 14.6 16.7 14.1 9.3 6.0 2.1 -3.2 6.5 1981 -4.3 -2.5 1.5 9.6 13.5 15.6 18.5 13.4 7.0 3.1 -1.3 -3.1 5.9 1982 ****** ****** 0.6 8.6 12.8 16.5 16.0 16.4 11.3 11.9 2.9 -7.5 ****** 1983 -6.0 -5.3 -2.4 6.4 12.0 16.2 18.7 18.3 13.0 4.5 0.4 -4.7 5.9 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 -2.8 -0.6 0.8 9.6 11.8 17.4 18.1 16.0 ****** ****** ****** ****** ****** 1986 -6.8 -2.9 -0.9 7.7 12.7 16.6 17.1 14.9 11.2 8.6 1.6 -3.3 6.4 1987 ****** -3.2 2.8 6.6 10.6 14.8 15.9 18.1 13.9 6.4 0.6 -4.0 ****** 1988 -3.1 -2.6 0.8 8.0 12.1 17.2 20.1 15.8 11.9 5.6 -4.6 -2.7 6.5 1989 -7.5 -6.9 1.1 6.1 9.4 16.3 19.6 15.9 12.7 5.7 0.9 -1.1 6.0 1990 -3.4 -1.4 1.5 7.6 13.9 17.3 18.0 18.1 12.9 5.0 -0.4 -5.0 7.0 1991 -2.1 -3.6 2.7 8.3 12.2 16.3 16.7 15.2 9.5 5.0 0.3 -0.2 6.7 1992 -5.7 -3.6 2.8 5.6 9.2 16.3 17.8 15.8 9.4 5.1 4.5 0.1 6.4 1993 ****** ****** ****** ****** ****** ****** 19.8 18.1 12.2 ****** 3.1 -3.2 ****** 1994 -3.2 -3.7 5.0 7.2 12.6 17.1 19.1 18.0 9.9 ****** ****** ****** ****** 1995 -3.3 -1.5 0.8 7.4 12.0 16.8 22.1 17.8 ****** 5.4 0.2 -2.7 ****** 1996 -5.9 0.7 4.1 8.6 12.5 17.8 18.6 15.7 14.9 5.5 0.2 -2.1 7.5 1997 -3.6 -4.8 1.6 7.4 11.2 17.8 20.3 17.8 12.2 8.3 2.0 -1.8 7.4 1998 -2.3 0.4 4.5 9.0 12.6 16.2 19.3 18.2 13.4 6.8 2.6 2.2 8.6 1999 -2.1 2.4 3.2 8.2 11.9 17.5 18.8 16.9 12.3 8.7 0.3 -2.4 8.0 2000 -3.2 -1.4 2.0 9.8 15.5 16.9 17.4 18.2 15.7 9.2 2.0 0.4 8.5 2001 -5.1 -1.9 3.8 9.3 14.5 18.2 19.0 16.8 12.2 8.6 2.8 2.1 8.4 2002 -1.2 0.6 4.0 8.6 13.0 17.3 18.1 17.6 11.3 8.8 3.0 -1.9 8.3 2003 -1.2 1.3 4.3 9.7 10.1 16.0 20.2 17.4 12.2 8.0 -0.0 -1.9 8.0 MEAN -4.9 -2.8 1.9 8.1 12.3 16.7 18.3 16.4 11.4 6.4 0.6 -3.2 6.8 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 3 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. AVERAGE OF MAXIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 32.5 34.8 27.3 24.5 19.5 12.0 ****** 1971 9.3 11.3 18.4 21.7 29.7 32.2 32.0 31.4 25.8 23.9 17.7 14.0 22.3 1972 4.6 4.5 14.0 22.3 25.0 31.7 31.1 29.4 27.8 24.8 19.1 6.3 20.1 1973 9.0 14.2 17.4 25.5 30.1 34.1 34.1 31.5 28.5 25.3 18.4 13.7 23.5 1974 6.8 9.0 18.1 23.6 30.1 32.7 32.2 30.1 24.9 19.6 10.5 10.7 20.7 1975 7.6 10.8 16.1 21.9 29.4 34.9 35.1 28.3 28.8 17.8 10.3 6.0 20.6 1976 8.7 7.7 9.2 17.9 31.2 31.8 ****** 33.8 28.2 24.2 13.9 9.7 ****** 1977 3.6 14.1 25.1 24.7 32.0 35.3 34.3 35.7 32.7 25.6 17.2 13.8 24.5 1978 10.7 11.8 16.3 25.3 29.3 32.5 31.3 29.8 28.4 23.9 14.1 14.4 22.3 1979 10.3 12.7 14.6 23.9 24.1 31.3 32.4 29.4 27.3 26.1 17.0 10.7 21.6 1980 5.7 10.6 17.9 27.3 28.2 31.8 31.8 30.0 28.1 25.1 20.4 14.0 22.6 1981 10.6 12.1 18.3 27.0 27.7 31.5 31.9 27.3 24.5 18.2 16.9 16.5 21.9 1982 8.4 ****** 13.4 23.3 31.0 32.0 32.6 31.4 25.1 26.5 17.9 5.3 ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 10.5 15.0 17.1 25.8 28.0 33.3 32.9 31.8 ****** ****** ****** 10.4 ****** 1986 11.1 9.4 11.0 21.0 28.0 31.6 30.9 28.3 27.5 25.9 16.6 7.6 20.7 1987 ****** 15.2 17.1 23.0 28.6 30.3 32.7 33.5 30.7 23.4 20.5 16.7 ****** 1988 11.1 11.7 16.9 23.2 30.7 34.8 34.9 31.4 28.0 25.6 13.6 14.2 23.0 1989 6.7 6.6 15.5 22.3 26.3 33.8 32.9 30.5 30.1 26.4 18.1 12.7 21.8 1990 8.3 11.6 14.6 21.7 30.8 32.8 32.1 32.7 29.9 22.7 20.0 11.6 22.4 1991 10.1 9.1 14.8 22.3 27.1 32.7 33.6 31.6 24.6 21.4 17.8 11.8 21.4 1992 5.7 10.8 13.6 20.0 23.9 32.1 31.7 28.9 26.1 23.7 19.4 10.8 20.6 1993 ****** ****** ****** ****** ****** ****** 33.0 31.8 28.8 ****** 20.0 15.6 ****** 1994 11.1 12.0 17.9 22.0 29.0 32.6 32.0 32.4 24.2 ****** ****** ****** ****** 1995 12.7 12.8 14.9 22.2 27.9 31.5 35.8 32.5 ****** 23.1 20.6 9.6 ****** 1996 5.1 11.8 13.7 24.3 28.4 31.8 30.4 30.2 32.3 23.0 17.6 13.1 21.8 1997 10.1 11.6 14.3 20.8 27.2 32.5 33.3 31.5 30.8 24.8 14.1 11.0 21.8 1998 8.6 11.7 16.1 23.5 28.2 29.7 33.1 32.5 31.0 24.4 21.4 19.6 23.3 1999 10.4 13.6 15.1 23.5 28.8 34.4 32.8 32.4 29.9 27.3 18.5 17.4 23.7 2000 10.4 11.7 15.7 27.9 33.3 32.1 31.2 31.3 31.0 26.1 15.6 13.2 23.3 2001 10.5 13.7 19.3 27.2 31.9 32.6 33.1 32.3 29.6 26.9 19.7 14.4 24.3 2002 10.6 13.3 19.8 23.0 29.8 33.5 31.4 32.4 29.2 26.3 18.3 11.2 23.2 2003 11.2 14.3 16.8 25.1 26.1 32.3 34.9 30.9 28.4 26.8 17.4 11.8 23.0 MEAN 8.9 11.5 16.1 23.4 28.7 32.5 32.7 31.3 28.3 24.3 17.4 12.2 22.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 4 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 17.4 17.3 20.2 20.1 17.9 ****** 1971 17.4 15.6 16.2 11.4 12.9 15.3 15.1 15.0 16.7 19.1 16.0 17.5 15.7 1972 12.4 15.1 12.7 16.3 16.4 17.1 15.5 16.1 18.1 19.3 17.7 13.2 15.8 1973 17.0 16.0 16.4 17.4 17.7 16.4 16.1 14.9 18.1 20.2 21.8 23.7 18.0 1974 17.8 15.6 13.7 15.9 17.8 16.5 14.6 16.4 17.2 18.4 9.6 15.3 15.7 1975 14.6 12.4 14.1 13.4 15.8 15.0 14.3 13.2 15.0 13.2 11.3 13.3 13.8 1976 13.6 14.0 13.1 12.5 17.1 13.4 ****** 16.3 15.0 15.7 18.6 15.7 ****** 1977 12.0 18.2 19.3 15.5 20.0 20.1 17.6 17.8 19.6 17.3 16.8 17.4 17.6 1978 16.7 14.0 16.0 17.4 16.4 16.3 13.3 14.7 18.8 18.7 13.9 15.2 15.9 1979 12.5 15.3 14.6 15.4 15.0 16.0 13.7 15.3 17.7 18.8 17.0 15.8 15.6 1980 11.0 14.5 16.1 15.7 14.7 17.2 15.1 15.9 18.8 19.1 18.3 17.2 16.1 1981 14.9 14.6 16.8 17.4 14.2 15.9 13.4 13.9 17.5 15.1 18.2 19.6 16.0 1982 ****** ****** 12.8 14.7 18.2 15.5 16.6 15.0 13.8 14.6 15.0 12.8 ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 13.3 15.6 16.4 16.2 16.2 15.9 14.8 15.8 ****** ****** ****** ****** ****** 1986 17.9 12.3 11.9 13.3 15.3 15.0 13.8 13.4 16.3 17.3 15.0 10.9 14.4 1987 ****** 18.4 14.3 16.4 18.0 15.5 16.8 15.4 16.8 17.0 19.9 20.7 ****** 1988 14.2 14.3 16.1 15.2 18.6 17.5 14.8 15.6 16.1 20.0 18.2 16.9 16.5 1989 14.2 13.5 14.4 16.2 16.9 17.5 13.3 14.6 17.4 20.7 17.2 13.8 15.8 1990 11.7 13.0 13.1 14.1 16.9 15.5 14.1 14.6 17.0 17.7 20.4 16.6 15.4 1991 12.2 12.7 12.1 14.0 14.9 16.4 16.9 16.4 15.1 16.4 17.5 12.0 14.7 1992 11.4 14.4 10.8 14.4 14.7 15.8 14.0 13.1 16.7 18.6 14.9 10.7 14.1 1993 ****** ****** ****** ****** ****** ****** 13.2 13.7 16.6 ****** 16.9 18.8 ****** 1994 14.3 15.7 12.9 14.8 16.4 15.5 12.9 14.4 14.3 ****** ****** ****** ****** 1995 16.0 14.3 14.1 14.8 15.9 14.7 13.7 14.7 ****** 17.7 20.4 12.3 ****** 1996 11.0 11.1 9.6 15.6 15.9 13.9 11.8 14.5 17.3 17.5 17.4 15.2 14.2 1997 13.7 16.4 12.7 13.4 16.0 14.8 13.0 13.8 18.6 16.5 12.1 12.8 14.5 1998 10.9 11.3 11.6 14.5 15.6 13.5 13.8 14.3 17.6 17.6 18.8 17.4 14.7 1999 12.5 11.2 11.9 15.3 16.9 16.9 14.0 15.5 17.6 18.6 18.3 19.8 15.7 2000 13.6 13.1 13.7 18.1 17.8 15.2 13.8 13.1 15.3 16.9 13.6 12.8 14.7 2001 15.6 15.6 15.5 17.9 17.4 14.4 14.1 15.5 17.4 18.3 16.9 12.3 15.9 2002 11.8 12.7 15.8 14.4 16.8 16.2 13.3 14.8 17.9 17.5 15.2 13.1 15.0 2003 12.4 13.0 12.5 15.4 16.0 16.3 14.7 13.5 16.2 18.8 17.4 13.7 15.0 MEAN 13.8 14.3 14.0 15.2 16.4 15.8 14.4 15.0 16.9 17.8 16.8 15.5 15.5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 5 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 8.19 4.36 4.35 3.94 2.74 ****** 1971 2.11 2.95 3.73 4.32 6.19 6.24 5.93 5.18 4.54 4.04 4.31 3.11 4.39 1972 2.19 1.55 4.12 4.05 4.08 4.35 4.50 4.08 4.07 4.00 4.11 2.26 3.61 1973 2.16 3.43 3.81 4.07 4.09 4.43 4.30 4.64 4.57 4.07 3.04 1.12 3.64 1974 0.96 2.09 3.70 4.09 5.34 6.15 5.79 5.58 4.51 4.28 4.23 2.79 4.13 1975 1.72 3.58 3.97 4.54 5.82 5.66 5.26 5.52 5.31 4.62 3.87 1.67 4.29 1976 2.29 2.09 2.57 4.29 5.40 6.67 ****** 5.87 5.77 4.93 2.35 2.34 ****** 1977 2.07 2.97 4.10 4.05 4.84 5.40 5.50 5.14 4.91 4.89 4.12 3.02 4.25 1978 2.35 3.25 3.96 4.19 5.15 5.78 5.01 4.31 4.08 4.04 4.27 3.34 4.15 1979 3.12 3.59 4.39 4.91 5.33 5.17 4.96 5.23 5.01 5.05 4.05 ****** ****** 1980 2.52 3.74 4.38 5.21 5.34 5.31 5.64 5.61 4.77 4.45 4.42 3.48 4.57 1981 ****** 3.74 4.35 5.06 5.24 5.55 5.92 5.38 4.83 4.72 3.80 3.12 ****** 1982 ****** ****** 4.17 4.59 5.42 5.28 5.37 5.07 4.91 4.77 4.27 2.47 ****** 1983 2.79 2.84 3.58 5.17 5.67 5.99 5.59 5.55 5.47 4.75 4.29 2.81 4.54 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 3.47 3.81 4.15 4.57 5.15 5.79 5.93 5.59 ****** ****** ****** 3.70 ****** 1986 2.33 3.46 3.86 6.08 5.50 4.99 5.30 5.19 4.19 4.40 4.17 3.75 4.43 1987 ****** 3.49 4.58 4.99 5.71 6.43 6.27 6.50 6.13 4.42 3.85 3.15 ****** 1988 3.20 3.67 4.56 5.28 5.96 5.50 7.00 5.13 4.86 4.46 2.99 3.50 4.68 1989 2.72 2.65 4.83 4.31 5.10 5.51 6.44 5.55 5.06 4.13 4.07 3.81 4.51 1990 3.71 4.07 4.24 5.14 5.90 5.89 6.24 5.31 4.54 4.24 3.71 3.18 4.68 1991 3.74 3.70 5.51 5.48 5.73 6.11 6.09 5.26 4.85 4.45 3.94 4.04 4.91 1992 3.01 3.16 4.67 5.32 5.32 7.00 6.16 5.87 5.06 4.24 4.44 4.47 4.89 1993 ****** ****** ****** ****** ****** ****** 6.25 5.54 5.35 ****** 4.43 3.21 ****** 1994 3.19 3.08 4.94 4.81 4.98 6.03 7.01 6.23 4.98 ****** ****** ****** ****** 1995 3.33 3.88 4.66 5.20 4.84 5.04 6.21 4.95 ****** 4.40 3.56 3.54 ****** 1996 2.59 4.21 5.34 4.40 4.83 5.17 5.40 5.18 4.92 4.36 3.65 3.47 4.46 1997 3.08 2.61 4.38 4.76 4.55 4.72 5.25 4.58 4.19 4.50 4.23 3.76 4.22 1998 3.38 4.16 4.41 4.52 4.28 4.40 4.78 4.73 4.30 4.27 4.33 4.07 4.30 1999 3.59 4.39 4.45 4.36 4.24 4.84 5.11 4.68 4.60 4.37 3.97 3.45 4.34 2000 3.32 3.83 4.30 4.29 4.34 4.65 5.15 4.79 4.43 4.37 4.27 4.19 4.33 2001 2.84 3.68 4.31 4.21 4.62 5.22 5.12 4.88 4.53 4.34 4.09 4.67 4.37 2002 3.61 4.12 4.22 5.19 5.09 4.89 5.14 4.59 4.14 4.17 4.35 3.89 4.45 2003 3.98 4.16 4.20 4.50 4.30 4.59 5.33 4.49 4.20 4.08 3.70 3.59 4.26 MEAN 2.84 3.40 4.28 4.71 5.11 5.45 5.62 5.29 4.76 4.41 3.97 3.29 4.42 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 6 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 5.49 9.95 4.80 6.51 7.24 4.14 ****** 1971 3.87 3.79 4.06 4.13 7.69 7.40 6.42 4.91 5.19 4.35 4.43 4.15 5.03 1972 3.83 3.83 4.08 4.17 4.66 5.24 5.08 4.65 4.63 4.36 4.26 3.93 4.39 1973 4.04 4.06 3.98 4.61 5.01 5.51 5.76 5.37 5.34 4.59 4.58 4.06 4.74 1974 4.03 3.69 4.23 4.38 6.26 7.04 7.04 6.02 5.34 4.60 4.29 4.17 5.09 1975 4.16 4.19 4.16 4.85 6.37 6.86 6.91 5.49 5.89 4.90 3.99 4.39 5.18 1976 4.35 4.21 4.30 4.41 6.51 5.97 ****** 6.51 6.19 5.61 4.54 4.34 ****** 1977 3.93 4.14 5.10 4.72 5.97 6.55 6.21 6.58 5.94 5.71 5.17 4.53 5.38 1978 4.58 4.33 4.23 4.51 6.03 6.37 5.52 4.99 5.00 4.53 5.85 5.79 5.14 1979 4.48 4.87 5.22 5.40 5.47 5.50 5.75 5.76 5.86 6.36 4.83 4.83 5.36 1980 4.39 4.90 5.33 5.94 6.12 6.39 6.57 6.25 5.90 5.42 5.06 4.94 5.60 1981 4.82 4.79 5.23 5.84 6.12 6.67 6.88 6.01 5.48 5.25 4.77 4.87 5.56 1982 4.57 4.23 4.77 5.68 6.33 6.28 6.57 6.38 5.44 5.46 5.17 4.11 5.42 1983 4.61 4.67 4.71 5.44 6.45 7.25 6.90 6.76 6.59 5.56 5.06 4.75 5.73 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 4.63 4.63 5.00 5.51 6.01 6.96 6.71 6.72 ****** ****** ****** 4.62 ****** 1986 2.96 4.16 4.47 5.51 5.33 5.53 5.48 5.34 4.61 5.25 4.73 4.78 4.85 1987 ****** 4.22 4.42 5.45 5.47 6.65 7.38 7.29 6.84 5.04 4.87 4.00 ****** 1988 3.91 4.28 4.91 5.94 6.54 5.81 7.40 6.29 5.94 5.25 3.68 4.16 5.34 1989 3.60 3.85 4.66 4.35 5.44 6.61 6.94 5.62 5.73 4.79 4.57 4.62 5.07 1990 5.08 4.91 4.67 5.32 6.16 6.63 7.05 6.13 5.37 4.85 5.42 4.79 5.53 1991 4.99 4.55 6.31 6.16 6.27 6.61 7.08 6.12 5.21 5.19 4.89 5.09 5.71 1992 4.79 4.89 5.11 6.01 5.91 6.97 6.24 5.91 5.70 5.48 5.04 5.19 5.60 1993 ****** ****** ****** ****** ****** ****** 6.31 6.60 5.96 ****** 4.91 4.33 ****** 1994 4.52 3.84 5.57 5.93 6.05 6.59 6.92 7.10 6.06 ****** ****** ****** ****** 1995 4.45 4.98 5.76 5.93 5.60 6.22 7.25 6.11 ****** 4.88 4.69 4.96 ****** 1996 3.82 4.90 5.73 5.04 5.76 6.05 6.22 6.21 6.07 4.83 4.30 4.33 5.27 1997 4.41 4.23 4.94 4.93 5.15 6.07 6.24 5.69 5.66 5.26 4.45 4.54 5.13 1998 4.54 4.73 4.64 4.98 5.39 5.43 6.04 5.79 5.56 4.84 4.35 4.29 5.05 1999 4.42 4.69 4.65 4.70 5.14 6.43 6.27 5.93 5.78 5.12 4.60 4.19 5.16 2000 4.22 4.19 4.20 5.31 5.90 5.89 6.03 5.54 5.70 5.35 4.72 4.46 5.13 2001 3.85 4.07 4.51 5.21 6.06 6.58 6.89 6.28 5.90 5.30 4.39 5.37 5.37 2002 4.63 4.36 3.84 5.75 5.88 5.94 5.88 5.26 5.08 4.77 4.47 4.52 5.03 2003 4.20 4.17 4.20 5.13 4.72 5.55 6.80 5.32 5.09 4.84 4.11 4.28 4.87 MEAN 4.29 4.37 4.75 5.21 5.87 6.31 6.45 6.09 5.61 5.15 4.76 4.55 5.28 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 7 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MONTHLY MEAN OF MIXING RATIO AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** 7.50 9.29 4.48 5.50 5.93 3.36 ****** 1971 3.03 3.89 3.90 4.09 6.95 6.51 5.95 5.21 4.90 4.26 4.32 3.98 4.75 1972 2.78 2.70 4.21 4.03 4.20 4.57 4.59 4.47 4.42 3.99 3.96 3.23 3.93 1973 2.87 4.08 4.09 4.22 4.45 4.72 4.78 5.12 4.79 4.47 4.73 3.75 4.34 1974 2.32 3.21 4.22 4.27 5.57 6.37 6.00 6.12 4.85 4.33 4.16 3.72 4.59 1975 3.05 3.95 4.34 4.60 6.07 5.70 5.47 5.39 5.45 4.72 4.32 3.47 4.71 1976 3.75 3.00 3.86 4.58 5.58 6.07 ****** 6.22 5.80 5.06 3.63 2.87 ****** 1977 2.95 4.39 4.16 4.12 5.30 6.02 6.22 5.60 4.95 4.63 4.69 3.98 4.75 1978 3.64 3.98 4.19 4.36 5.25 5.66 4.85 4.49 4.26 4.07 4.77 4.23 4.48 1979 4.08 4.34 4.86 5.11 4.98 5.06 5.30 5.53 5.15 5.05 4.65 3.81 4.83 1980 3.76 4.55 4.82 5.28 5.36 5.57 6.08 5.52 5.00 4.74 4.63 4.43 4.98 1981 3.94 4.17 4.99 5.17 5.35 5.97 6.11 5.48 5.05 4.63 4.63 4.47 5.00 1982 3.90 3.73 4.54 4.87 5.52 5.50 5.76 5.40 4.97 4.92 4.92 3.55 4.80 1983 3.47 4.62 4.54 5.04 5.81 6.09 6.02 6.01 5.69 5.06 4.72 4.01 5.09 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 4.03 4.45 4.48 4.72 5.28 6.08 6.32 5.89 ****** ****** ****** 3.77 ****** 1986 2.95 4.35 4.41 5.53 5.16 4.90 4.94 4.83 4.34 4.60 4.53 3.95 4.54 1987 ****** 4.21 4.46 4.88 5.09 6.13 6.70 6.63 6.34 4.73 4.26 3.82 ****** 1988 4.18 4.36 4.70 5.32 5.89 5.66 6.69 5.72 5.30 4.74 4.33 4.10 5.08 1989 3.06 3.62 4.55 4.23 4.93 5.74 6.43 6.07 5.55 4.70 4.35 4.65 4.82 1990 4.21 4.60 4.39 5.01 5.75 6.08 6.66 5.70 5.35 4.46 4.92 4.00 5.09 1991 4.45 4.29 5.56 5.43 5.59 6.15 6.35 5.97 4.93 4.77 4.35 4.31 5.18 1992 3.63 4.25 4.63 5.49 5.63 6.87 6.16 5.89 5.43 4.64 4.59 4.53 5.15 1993 ****** ****** ****** ****** ****** ****** 6.53 6.26 5.19 ****** 4.67 4.37 ****** 1994 4.08 4.20 5.10 5.27 6.09 6.44 6.84 6.63 5.40 ****** ****** ****** ****** 1995 4.59 4.89 5.33 5.59 5.38 5.84 6.90 5.72 ****** 4.58 4.28 4.55 ****** 1996 3.44 4.69 5.34 4.64 5.31 5.71 5.74 5.82 5.82 4.41 4.26 4.32 4.96 1997 4.25 4.11 4.85 4.73 4.78 5.72 5.88 5.24 4.97 4.82 4.50 4.57 4.87 1998 4.26 4.49 4.56 4.99 4.97 5.20 5.45 5.20 4.98 4.51 4.07 4.24 4.75 1999 3.96 4.83 4.65 4.53 4.67 5.57 5.74 5.68 5.49 4.59 4.35 4.14 4.85 2000 4.14 4.33 4.27 4.89 5.37 5.35 5.64 5.31 5.18 4.71 4.52 4.59 4.86 2001 3.97 4.25 4.26 4.80 5.50 6.00 6.07 5.68 5.23 4.71 4.33 5.21 5.00 2002 4.39 4.50 4.35 5.99 5.63 5.41 5.45 5.08 4.73 4.33 4.19 4.29 4.86 2003 4.17 4.24 4.32 4.94 4.65 5.01 6.02 5.02 4.64 4.34 4.12 4.20 4.64 MEAN 3.71 4.18 4.55 4.87 5.36 5.74 5.98 5.71 5.12 4.64 4.48 4.08 4.86 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 8 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 1970 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 11.0 15 1.0 23 -5.0 24 -5.0 16 -15.0 17 ***** 1971 -16.0 28 -15.0 2 -7.5 2 4.0 4 11.5 17 11.0 12 8.0 18 12.0 9 3.0 20 0.0 24 -5.0 3 -9.0 22 -16.0 1972 -16.5 6 -23.0 12 -5.0 5 1.5 1 3.0 5 10.0 7 10.0 27 4.5 8 3.0 18 2.0 26 -5.0 27 -12.5 30 -23.0 1973 -16.0 3 -11.5 7 -11.5 10 2.0 15 8.5 1 13.0 8 12.0 6 8.5 9 3.0 30 -2.0 25 -10.5 8 -14.0 26 -16.0 1974 -18.0 2 -20.0 3 -7.5 10 1.0 11 8.0 6 13.0 1 15.0 11 11.0 29 0.0 30 -4.5 31 -4.5 14 -11.5 28 -20.0 1975 -12.5 16 -5.5 4 -8.5 8 5.0 1 10.5 13 17.0 7 16.5 5 10.5 29 11.5 3 -3.0 26 -8.5 30 -14.5 27 -14.5 1976 -8.5 11 -13.5 18 -6.5 3 -1.0 12 9.5 5 12.5 6 ***** ** 14.5 6 8.5 23 3.5 22 -14.5 20 -14.5 2 ***** 1977 -18.5 18 -8.5 4 -3.5 1 3.5 12 7.6 5 11.5 5 13.5 8 12.5 27 7.5 30 4.5 29 -6.5 27 -13.0 31 -18.5 1978 -12.5 14 -10.8 7 -6.5 21 -2.5 16 7.5 3 9.5 3 11.5 9 10.0 13 5.0 24 2.0 24 -6.5 6 -8.5 25 -12.5 1979 -9.5 28 -8.5 1 -12.5 8 1.0 1 4.5 2 8.5 2 13.5 28 8.0 22 4.0 27 3.5 11 -7.5 16 -13.5 23 -13.5 1980 -11.5 3 -13.5 4 -6.5 6 5.5 1 8.5 30 10.0 26 11.5 21 8.0 31 7.5 13 -1.5 23 -3.5 26 -14.5 13 -14.5 1981 -9.5 16 -9.0 5 -4.5 6 -6.5 3 9.5 17 10.5 18 13.0 25 6.5 31 3.5 27 -3.5 29 -4.5 11 -6.5 13 -9.5 1982 ***** ** ***** ** -7.5 9 -1.5 4 6.5 26 12.5 16 11.0 13 10.5 24 4.5 26 6.5 1 -5.0 30 -20.0 9 ***** 1983 -16.0 30 -9.5 1 -8.5 9 1.5 16 3.5 1 10.0 2 11.5 2 12.0 29 5.5 24 -2.0 24 -4.0 29 -10.5 22 -16.0 1984 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1985 -12.5 1 -7.5 23 -7.5 4 5.5 6 5.5 13 12.5 3 15.0 22 11.5 30 ***** ** ***** ** ***** ** ***** ** ***** 1986 -11.0 25 -7.0 3 -12.5 17 4.0 26 7.5 21 11.5 28 12.5 22 11.0 30 8.2 23 0.0 17 -6.5 14 -13.0 13 -13.0 1987 ***** ** -7.5 13 -3.0 21 -1.2 2 2.5 8 11.5 16 11.5 1 14.0 29 7.0 28 -3.5 12 -11.0 30 -12.5 2 ***** 1988 -8.5 21 -13.5 8 -4.0 18 -3.0 5 7.5 7 12.5 1 14.0 30 12.5 15 4.0 28 2.5 3 -7.0 22 -7.0 5 -13.5 1989 -17.0 6 -14.0 16 -3.0 31 -1.5 1 -2.5 2 10.0 16 17.0 5 10.5 29 5.0 23 0.5 25 -3.5 19 -5.5 19 -17.0 1990 -12.5 28 -15.5 1 -7.0 22 1.5 10 8.5 14 11.5 8 11.5 17 14.0 17 5.5 28 0.0 15 -7.0 16 -14.5 30 -15.5 1991 -7.5 2 -14.5 14 -3.5 3 1.5 14 5.5 6 10.0 25 13.5 4 9.5 31 3.0 29 2.5 5 -6.0 26 -7.0 27 -14.5 1992 -15.5 9 -8.8 16 -2.5 27 1.0 4 4.5 28 10.5 2 13.5 12 11.5 15 5.0 22 1.5 20 1.0 29 -5.5 12 -15.5 1993 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 13.5 3 14.5 24 8.5 25 ***** ** -5.5 23 -7.5 13 ***** 1994 -9.5 13 -8.5 8 0.5 3 -4.5 6 7.5 9 11.0 11 15.5 4 13.5 27 5.5 14 ***** ** ***** ** ***** ** ***** 1995 -8.5 10 -7.5 26 -7.5 1 1.5 1 7.0 1 9.5 3 18.5 26 13.0 31 ***** ** -1.5 19 -9.5 27 -10.0 1 ***** 1996 -17.5 22 -7.5 7 -1.0 27 2.5 1 7.5 11 11.5 16 14.0 6 7.5 26 11.5 2 1.5 3 -7.5 14 -8.5 10 -17.5 1997 -7.0 15 -12.5 9 -7.0 1 0.0 14 4.5 7 13.5 1 17.0 12 10.5 31 8.5 18 3.5 20 -5.5 25 -7.5 29 -12.5 1998 -14.0 16 -6.5 17 -5.5 4 1.5 8 3.5 5 12.0 12 14.0 3 15.0 10 8.0 21 2.5 10 -2.5 28 -5.0 12 -14.0 1999 -11.0 9 -6.0 2 -3.5 20 0.0 13 7.5 24 13.0 1 12.5 30 12.0 20 6.5 28 5.0 9 -6.0 29 -6.5 3 -11.0 2000 -12.0 14 -6.5 11 -5.5 3 3.5 2 10.5 13 10.5 14 9.5 21 11.5 16 8.0 27 3.0 6 -3.5 18 -7.0 31 -12.0 2001 -15.5 30 -9.0 1 -4.5 13 4.5 3 10.0 7 11.0 22 13.0 31 13.5 14 5.5 14 1.5 12 -7.5 21 -3.0 4 -15.5 2002 -9.0 19 -8.0 7 -5.0 8 2.0 5 8.0 15 12.5 8 13.5 23 5.5 15 6.5 1 2.5 19 -5.5 19 -10.0 5 -10.0 2003 -13.5 21 -7.0 18 -10.0 3 1.5 19 1.5 3 10.5 7 11.5 13 13.5 29 5.5 29 4.5 15 -9.0 25 -14.0 12 -14.0 LOW. -18.5 18 -23.0 12 -12.5 8 -6.5 3 -2.5 2 8.5 2 8.0 18 4.5 8 0.0 30 -5.0 24 -14.5 20 -20.0 9 -23.0 YEAR 1977 1972 1979 1981 1989 1979 1971 1972 1974 1970 1976 1982 1972 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 9 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 1970 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 35.0 25 40.2 6 34.2 6 30.5 1 24.5 5 21.5 13 ***** 1971 20.0 7 18.0 23 28.0 15 29.0 23 36.0 28 37.0 29 36.0 9 34.0 4 34.5 1 28.5 4 22.6 4 20.5 16 37.0 1972 11.5 18 15.5 19 19.5 31 28.5 12 32.0 30 38.0 24 37.5 2 34.0 1 35.0 14 27.5 7 26.5 5 14.0 1 38.0 1973 14.0 28 20.5 21 27.5 21 32.0 29 36.0 25 38.0 12 40.0 11 35.0 2 35.0 10 31.5 11 28.0 17 17.5 4 40.0 1974 15.5 13 14.5 18 28.5 17 29.0 30 37.0 28 37.0 26 35.0 2 34.0 14 32.5 6 23.5 1 14.5 4 16.5 4 37.0 1975 15.5 6 15.5 28 21.0 24 29.0 30 35.5 28 36.8 20 37.5 21 35.0 3 33.5 5 25.5 1 15.5 15 12.0 10 37.5 1976 14.5 30 15.5 10 12.5 11 29.5 29 36.5 16 37.0 1 ***** ** 37.5 1 36.0 20 28.5 1 24.5 2 14.5 18 ***** 1977 8.5 2 20.5 17 28.5 19 32.5 28 36.5 24 37.5 17 38.5 13 39.5 14 36.5 1 32.5 6 23.5 12 20.5 9 39.5 1978 16.8 5 17.5 18 24.5 30 29.5 9 33.5 21 37.5 21 37.5 2 33.5 17 33.5 9 28.5 20 25.5 2 23.5 12 37.5 1979 17.5 4 17.0 17 22.5 28 32.0 25 31.0 23 37.5 25 38.0 7 35.0 1 33.5 14 31.5 6 24.5 2 16.5 16 38.0 1980 14.5 30 17.5 24 24.5 30 32.5 21 33.5 1 41.0 13 33.5 4 34.0 20 32.0 7 34.6 6 25.5 10 22.5 8 41.0 1981 18.0 19 20.5 10 24.0 26 31.5 17 33.5 8 39.5 10 37.0 2 32.5 16 29.5 9 28.5 14 21.5 25 21.5 5 39.5 1982 15.5 17 ***** ** 18.5 24 32.0 29 35.5 13 36.0 4 38.5 31 39.0 1 29.0 4 29.0 15 28.0 6 11.0 3 ***** 1983 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1984 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1985 16.5 23 22.5 24 26.5 28 32.5 28 34.0 5 39.0 8 35.5 5 37.5 6 ***** ** ***** ** ***** ** 19.0 4 ***** 1986 14.5 6 17.5 24 20.0 5 28.0 18 33.0 24 36.5 17 34.0 26 32.0 1 33.0 26 32.0 5 24.5 1 14.0 27 36.5 1987 ***** ** 22.0 4 23.0 1 32.0 25 35.0 27 38.0 5 39.5 9 38.0 6 36.0 22 32.0 7 27.0 6 23.5 20 ***** 1988 16.0 12 19.0 3 23.5 22 30.5 15 36.5 28 41.5 23 40.0 1 35.0 9 36.5 12 29.5 15 20.5 26 21.5 3 41.5 1989 15.5 22 12.5 22 21.0 5 28.0 19 36.0 28 38.0 24 38.0 8 34.5 12 36.0 14 31.5 6 24.0 14 19.0 1 38.0 1990 14.0 25 17.5 20 24.5 17 30.0 29 36.0 25 38.0 16 35.0 25 39.5 10 34.5 5 30.5 2 26.5 8 20.5 9 39.5 1991 14.0 23 15.5 1 22.0 24 30.2 23 35.0 31 39.0 4 42.5 8 37.5 10 30.5 17 26.5 24 27.0 1 20.2 10 42.5 1992 12.5 17 17.5 27 17.5 12 26.5 14 29.5 16 37.0 22 34.5 1 34.0 2 34.0 27 28.0 5 24.8 6 17.5 17 37.0 1993 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 37.5 9 34.5 5 32.5 4 ***** ** 26.5 10 19.0 25 ***** 1994 20.0 5 16.0 14 25.0 22 32.5 26 32.5 16 37.5 29 35.5 7 36.5 2 29.2 1 ***** ** ***** ** ***** ** ***** 1995 16.5 17 18.5 5 21.0 25 28.5 22 35.5 9 38.5 16 38.5 1 35.5 1 ***** ** 29.5 3 26.5 3 14.5 3 ***** 1996 14.5 30 19.5 11 19.0 23 32.5 26 34.5 18 39.0 5 34.5 8 34.5 24 38.0 10 28.0 6 26.0 5 19.0 29 39.0 1997 16.0 1 21.5 22 20.5 3 26.0 30 34.0 30 37.5 16 37.0 16 35.2 16 36.0 1 33.0 4 23.0 4 17.0 10 37.5 1998 13.5 26 20.0 9 26.5 30 31.0 19 33.5 13 33.5 4 42.0 6 37.0 24 35.5 12 35.0 5 25.0 3 25.5 13 42.0 1999 20.0 3 18.0 26 22.5 26 28.5 25 34.5 14 39.5 30 41.0 8 37.5 30 37.0 11 31.0 20 24.0 1 20.0 11 41.0 2000 18.5 1 18.5 25 22.5 24 32.0 30 37.0 7 39.0 26 33.2 12 35.5 28 36.5 21 30.0 1 25.5 2 20.5 1 39.0 2001 18.0 14 18.5 21 26.0 31 32.5 27 36.0 30 39.0 8 38.0 18 38.8 25 38.0 7 31.5 8 29.0 18 19.0 31 39.0 2002 20.0 2 19.0 13 26.5 18 31.5 29 36.0 25 39.5 30 36.5 25 36.5 17 34.5 14 31.5 6 24.5 1 16.5 8 39.5 2003 18.0 10 19.0 25 23.5 26 33.0 28 31.5 18 35.5 3 41.0 3 40.0 1 35.5 20 32.0 2 24.5 1 18.0 18 41.0 HIG. 20.0 7 22.5 24 28.5 17 33.0 28 37.0 28 41.5 23 42.5 8 40.2 6 38.0 10 35.0 5 29.0 18 25.5 13 42.5 YEAR 1971 1985 1974 2003 1974 1988 1991 1970 1996 1998 2001 1998 1991 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 10 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 1970 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 0.0 ** 0.0 ** 0.0 ** 2.5 25 0.0 ** 1.6 28 ***** 1971 1.6 14 8.0 14 14.0 31 11.0 12 11.0 11 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 12 19.0 31 19.0 1972 12.0 11 27.0 9 23.5 12 11.0 3 12.0 9 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 9.0 7 27.0 1973 20.0 15 5.0 6 7.0 18 5.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.5 27 20.0 1974 30.0 17 13.0 17 22.0 31 4.5 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 10.0 15 30.0 1975 6.0 14 4.0 12 17.0 4 18.0 22 10.0 13 0.0 ** 0.0 ** 0.0 ** 0.0 ** 6.0 15 6.0 30 12.0 1 18.0 1976 5.0 11 24.0 11 27.0 17 17.0 5 0.0 ** 0.0 ** ***** ** 0.0 ** 0.0 ** 0.0 ** 7.0 3 4.0 1 ***** 1977 10.0 22 4.5 26 15.0 29 20.0 2 12.0 27 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 24 10.0 17 20.0 22 20.0 1978 23.0 12 27.0 26 12.0 8 11.5 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 15.0 19 8.0 29 27.0 1979 25.0 24 16.0 13 9.5 12 7.0 29 26.0 9 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 29 0.0 ** 19.0 22 26.0 1980 16.0 25 6.0 19 15.5 20 4.0 5 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 28 0.0 ** 10.0 13 16.0 1981 29.5 27 34.0 26 10.0 13 13.0 30 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 8.0 18 0.0 ** 3.0 27 34.0 1982 16.0 4 25.0 18 23.0 4 8.0 21 10.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 11.0 3 18.0 7 25.0 1983 13.0 23 10.0 18 15.5 13 27.0 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 9.0 14 27.0 1984 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** ***** 1985 14.0 18 2.0 1 11.0 20 7.0 26 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** ***** ** ***** ** 10.0 6 ***** 1986 6.0 21 15.5 16 36.0 26 11.0 7 1.0 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** 2.5 25 9.5 20 38.0 3 38.0 1987 ***** ** 5.0 21 21.0 13 4.0 5 1.5 29 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.0 29 0.0 ** 11.0 29 ***** 1988 16.0 19 34.5 18 39.0 25 11.0 28 1.5 6 0.0 ** 3.0 10 0.0 ** 0.0 ** 0.0 ** 6.5 12 25.0 20 39.0 1989 10.0 30 9.5 15 19.0 18 1.5 13 7.0 9 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 12.0 6 16.5 14 19.0 1990 21.0 18 15.0 7 6.5 20 6.0 10 3.0 1 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 9.0 25 21.0 1991 11.0 22 17.0 28 18.0 30 8.0 6 4.0 6 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.5 14 53.0 16 53.0 1992 14.0 22 6.0 1 8.5 24 17.0 5 8.0 1 1.0 3 0.0 ** 0.0 ** 0.0 ** 1.0 7 0.0 ** 16.0 21 17.0 1993 ***** ** ***** ** ***** ** ***** ** ***** ** ***** ** 0.0 ** 0.0 ** 0.0 ** ***** ** 12.0 5 0.0 ** ***** 1994 31.0 24 1.0 28 18.0 2 9.5 3 4.5 2 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** ***** ** ***** ** ***** 1995 5.0 24 12.0 7 18.0 20 16.5 25 0.0 ** 0.0 ** 0.0 ** 0.0 ** ***** ** 3.0 22 0.0 ** 9.0 18 ***** 1996 14.0 20 17.0 6 20.0 17 6.0 4 3.5 22 4.5 11 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.0 30 9.0 16 20.0 1997 24.0 18 2.5 12 19.0 26 10.5 23 14.0 6 1.5 2 0.0 ** 0.0 ** 0.0 ** 9.0 22 3.0 13 18.0 21 24.0 1998 18.0 14 30.0 13 9.0 11 11.0 6 2.0 16 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 8 30.0 1999 8.0 29 22.0 6 15.0 3 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 22.0 2000 20.0 29 5.5 15 5.0 25 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 1.0 25 4.0 5 11.0 7 9.0 16 20.0 2001 5.0 28 2.5 19 11.5 11 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 4.5 29 8.0 20 11.5 2002 30.0 12 11.0 21 6.0 20 14.0 4 1.0 3 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.0 17 7.5 23 30.0 2003 11.0 19 15.0 6 45.0 14 8.0 18 2.5 20 0.0 ** 0.0 ** 0.0 ** 0.0 ** 0.0 ** 3.5 14 6.5 28 45.0 HIG. 31.0 24 34.5 18 45.0 14 27.0 2 26.0 9 4.5 11 3.0 10 0.0 ** 1.0 25 9.0 22 15.0 19 53.0 16 53.0 YEAR 1994 1988 2003 1983 1979 1996 1988 **** 2000 1997 1978 1991 1991 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 11 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MONTHLY TOTAL PRECIPITATION WITH SEASONAL PERCENT. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL SEASONAL-PERCENT ----------------------- 1970 ****** ****** ****** ****** ****** ****** 0.0 0.0 0.0 2.5 0.0 2.6 ****** ***** ***** 0.0 100.0 1971 1.6 10.6 27.5 26.5 11.0 0.0 0.0 0.0 0.0 0.0 10.0 41.0 128.2 31.0 29.3 0.0 39.8 1972 74.5 57.0 91.0 21.0 20.5 0.0 0.0 0.0 0.0 0.0 0.0 18.0 282.0 78.9 14.7 0.0 6.4 1973 27.0 12.0 25.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 70.5 90.8 7.1 0.0 2.1 1974 63.0 47.5 56.0 9.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20.0 195.5 85.2 4.6 0.0 10.2 1975 32.0 10.5 37.0 63.0 10.0 0.0 0.0 0.0 0.0 6.0 6.0 16.0 180.5 44.0 40.4 0.0 15.5 1976 13.0 57.0 101.0 36.0 0.0 0.0 ****** 0.0 0.0 0.0 7.0 10.0 ****** 76.3 16.1 0.0 7.6 1977 54.0 4.5 17.0 43.0 14.0 0.0 0.0 0.0 0.0 7.0 10.0 28.0 177.5 42.5 32.1 0.0 25.4 1978 70.0 66.0 27.0 16.5 0.0 0.0 0.0 0.0 0.0 0.0 24.5 14.0 218.0 74.8 7.6 0.0 17.7 1979 65.5 43.0 20.5 17.5 33.0 0.0 0.0 0.0 0.0 4.0 0.0 71.0 254.5 50.7 19.8 0.0 29.5 1980 52.0 24.0 36.5 4.0 0.0 0.0 0.0 0.0 0.0 1.0 0.0 24.0 141.5 79.5 2.8 0.0 17.7 1981 47.0 80.5 24.0 21.0 0.0 0.0 0.0 0.0 0.0 15.0 0.0 3.0 190.5 79.5 11.0 0.0 9.4 1982 86.5 95.0 101.0 15.0 15.0 0.0 0.0 0.0 0.0 0.0 22.0 53.0 387.5 72.9 7.7 0.0 19.4 1983 60.0 10.0 39.5 75.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 30.0 215.0 50.9 35.1 0.0 14.0 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ***** ***** ***** ***** 1985 21.5 3.5 32.5 11.0 0.0 0.0 0.0 0.0 ****** ****** ****** 21.0 ****** 64.2 12.3 0.0 23.5 1986 11.5 63.0 112.5 61.0 1.0 0.0 0.0 0.0 0.0 2.5 22.5 88.0 362.0 51.7 17.1 0.0 31.2 1987 ****** 11.0 46.5 7.0 5.0 0.0 0.0 0.0 0.0 4.0 0.0 11.0 ****** 68.0 14.2 0.0 17.8 1988 28.0 72.0 95.5 17.5 1.5 0.0 3.0 0.0 0.0 0.0 9.0 40.0 266.5 73.4 7.1 1.1 18.4 1989 45.0 21.0 64.5 1.5 7.0 0.0 0.0 0.0 0.0 0.0 12.0 36.0 187.0 69.8 4.5 0.0 25.7 1990 95.0 65.0 19.0 10.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 9.0 201.0 89.1 6.5 0.0 4.5 1991 42.5 49.0 97.0 16.5 12.0 0.0 0.0 0.0 0.0 0.0 3.5 89.5 310.0 60.8 9.2 0.0 30.0 1992 43.0 20.5 27.5 60.5 11.5 1.0 0.0 0.0 0.0 1.0 0.0 59.5 224.5 40.5 32.5 0.0 26.9 1993 ****** ****** ****** ****** ****** ****** 0.0 0.0 0.0 ****** 15.5 0.0 ****** ***** ***** 0.0 100.0 1994 65.5 1.0 27.5 14.0 6.5 0.0 0.0 0.0 0.0 ****** ****** ****** ****** 82.1 17.9 0.0 ***** 1995 6.0 34.5 58.5 64.0 0.0 0.0 0.0 0.0 ****** 3.0 0.0 45.5 ****** 46.8 30.3 0.0 22.9 1996 23.0 64.5 132.0 6.0 8.5 4.5 0.0 0.0 0.0 0.0 3.0 9.0 250.5 87.6 7.6 0.0 4.8 1997 34.5 2.5 54.0 40.0 14.0 2.5 0.0 0.0 0.0 13.5 8.5 49.0 218.5 41.6 25.9 0.0 32.5 1998 49.5 67.5 47.5 37.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 204.5 80.4 19.1 0.0 0.5 1999 28.5 76.0 60.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 164.5 100.0 0.0 0.0 0.0 2000 41.0 20.0 9.0 0.0 0.0 0.0 0.0 0.0 1.0 4.0 32.5 26.5 134.0 52.2 0.0 0.7 47.0 2001 7.0 5.0 14.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6.5 31.5 64.5 41.1 0.0 0.0 58.9 2002 76.0 36.0 11.5 32.0 1.0 0.0 0.0 0.0 0.0 0.0 4.5 18.2 179.2 68.9 18.4 0.0 12.7 2003 30.5 22.5 60.0 10.0 2.5 0.0 0.0 0.0 0.0 0.0 3.5 11.5 140.5 80.4 8.9 0.0 10.7 MEAN 43.1 37.2 50.7 23.9 5.8 0.3 0.1 0.0 0.0 2.1 6.5 27.4 197.1 66.6 15.2 0.0 18.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 12 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** 0 0 0 1 0 2 *** 1971 1 3 3 5 1 0 0 0 0 0 3 4 20 1972 8 5 8 4 3 0 0 0 0 0 0 3 31 1973 2 3 4 1 0 0 0 0 0 0 0 1 11 1974 6 8 4 2 0 0 0 0 0 0 0 3 23 1975 8 3 3 6 1 0 0 0 0 1 1 2 25 1976 4 6 9 3 0 0 *** 0 0 0 1 3 *** 1977 10 1 2 6 2 0 0 0 0 2 1 3 27 1978 5 5 4 2 0 0 0 0 0 0 3 3 22 1979 5 5 4 5 3 0 0 0 0 1 0 6 29 1980 5 6 10 1 0 0 0 0 0 1 0 3 26 1981 4 5 5 3 0 0 0 0 0 2 0 1 20 1982 10 11 10 2 2 0 0 0 0 0 3 5 43 1983 8 1 5 7 0 0 0 0 0 0 0 6 27 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 4 2 5 3 0 0 0 0 *** *** *** 6 *** 1986 3 11 10 11 1 0 0 0 0 1 4 6 47 1987 *** 3 6 2 4 0 0 0 0 1 0 1 *** 1988 3 7 8 3 1 0 1 0 0 0 2 3 28 1989 8 4 6 1 1 0 0 0 0 0 1 5 26 1990 10 7 4 2 1 0 0 0 0 0 0 1 25 1991 7 5 11 4 4 0 0 0 0 0 1 6 38 1992 7 5 6 10 3 1 0 0 0 1 0 8 41 1993 *** *** *** *** *** *** 0 0 0 *** 4 0 *** 1994 6 1 3 2 2 0 0 0 0 *** *** *** *** 1995 2 5 6 8 0 0 0 0 *** 1 0 8 *** 1996 2 7 17 1 4 1 0 0 0 0 1 1 34 1997 3 1 7 9 1 2 0 0 0 4 3 5 35 1998 5 7 7 7 1 0 0 0 0 0 0 1 28 1999 6 8 8 0 0 0 0 0 0 0 0 0 22 2000 4 5 3 0 0 0 0 0 1 1 4 4 22 2001 2 2 2 0 0 0 0 0 0 0 2 9 17 2002 5 8 3 6 1 0 0 0 0 0 2 5 30 2003 5 3 5 3 1 0 0 0 0 0 1 3 21 MEAN 5 5 6 4 1 0 0 0 0 1 1 4 27 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 13 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 1970 *** *** *** *** *** *** 0 0 0 1 0 2 *** 1971 1 2 3 5 1 0 0 0 0 0 3 4 19 1972 8 5 8 4 3 0 0 0 0 0 0 3 31 1973 2 3 4 1 0 0 0 0 0 0 0 1 11 1974 6 8 4 2 0 0 0 0 0 0 0 3 23 1975 8 3 3 6 1 0 0 0 0 1 1 2 25 1976 4 6 9 3 0 0 *** 0 0 0 1 3 *** 1977 10 1 2 6 2 0 0 0 0 2 1 3 27 1978 5 5 4 2 0 0 0 0 0 0 3 3 22 1979 5 5 4 5 3 0 0 0 0 1 0 6 29 1980 5 6 10 1 0 0 0 0 0 1 0 3 26 1981 4 5 5 3 0 0 0 0 0 2 0 1 20 1982 10 11 10 2 2 0 0 0 0 0 3 5 43 1983 8 1 5 7 0 0 0 0 0 0 0 6 27 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 4 2 5 3 0 0 0 0 *** *** *** 6 *** 1986 3 11 10 11 1 0 0 0 0 1 4 6 47 1987 *** 3 6 2 4 0 0 0 0 1 0 1 *** 1988 3 7 8 3 1 0 1 0 0 0 2 3 28 1989 8 4 6 1 1 0 0 0 0 0 1 5 26 1990 10 7 4 2 1 0 0 0 0 0 0 1 25 1991 7 5 11 4 4 0 0 0 0 0 1 6 38 1992 7 5 6 10 3 1 0 0 0 1 0 8 41 1993 *** *** *** *** *** *** 0 0 0 *** 4 0 *** 1994 6 1 3 2 2 0 0 0 0 *** *** *** *** 1995 2 5 6 8 0 0 0 0 *** 1 0 8 *** 1996 2 7 17 1 4 1 0 0 0 0 1 1 34 1997 3 1 7 9 1 2 0 0 0 4 3 5 35 1998 5 7 7 7 1 0 0 0 0 0 0 1 28 1999 6 8 8 0 0 0 0 0 0 0 0 0 22 2000 4 5 3 0 0 0 0 0 1 1 4 4 22 2001 2 2 2 0 0 0 0 0 0 0 2 9 17 2002 5 8 3 6 1 0 0 0 0 0 2 4 29 2003 5 3 5 3 1 0 0 0 0 0 1 3 21 MEAN 5 5 6 4 1 0 0 0 0 1 1 4 27 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 14 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 1970 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1971 0 0 1 1 1 0 0 0 0 0 0 2 5 1972 3 2 3 1 1 0 0 0 0 0 0 0 10 1973 1 0 0 0 0 0 0 0 0 0 0 0 1 1974 3 2 3 0 0 0 0 0 0 0 0 1 9 1975 0 0 2 4 1 0 0 0 0 0 0 1 8 1976 0 3 5 2 0 0 *** 0 0 0 0 0 *** 1977 1 0 1 2 1 0 0 0 0 0 1 1 7 1978 3 2 1 1 0 0 0 0 0 0 1 0 8 1979 4 2 0 0 1 0 0 0 0 0 0 4 11 1980 3 0 1 0 0 0 0 0 0 0 0 1 5 1981 2 3 1 1 0 0 0 0 0 0 0 0 7 1982 4 3 5 0 1 0 0 0 0 0 1 3 17 1983 3 1 2 3 0 0 0 0 0 0 0 0 9 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 1 0 2 0 0 0 0 0 *** *** *** 1 *** 1986 0 2 4 3 0 0 0 0 0 0 0 3 12 1987 *** 0 2 0 0 0 0 0 0 0 0 1 *** 1988 2 2 2 1 0 0 0 0 0 0 0 2 9 1989 1 0 4 0 0 0 0 0 0 0 1 1 7 1990 5 4 0 0 0 0 0 0 0 0 0 0 9 1991 2 3 5 0 0 0 0 0 0 0 0 2 12 1992 1 0 0 1 0 0 0 0 0 0 0 2 4 1993 *** *** *** *** *** *** 0 0 0 *** 1 0 *** 1994 2 0 1 0 0 0 0 0 0 *** *** *** *** 1995 0 2 3 3 0 0 0 0 *** 0 0 0 *** 1996 1 4 6 0 0 0 0 0 0 0 0 0 11 1997 1 0 2 1 1 0 0 0 0 0 0 3 8 1998 2 2 0 1 0 0 0 0 0 0 0 0 5 1999 0 3 3 0 0 0 0 0 0 0 0 0 6 2000 1 0 0 0 0 0 0 0 0 0 2 0 3 2001 0 0 1 0 0 0 0 0 0 0 0 0 1 2002 2 1 0 1 0 0 0 0 0 0 0 0 4 2003 1 1 1 0 0 0 0 0 0 0 0 0 3 MEAN 2 1 2 1 0 0 0 0 0 0 0 1 7 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 15 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 03 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 38 35 55 66 68 *** 1971 69 71 63 47 35 30 30 28 39 47 68 67 50 1972 58 44 68 46 34 23 23 26 32 38 59 61 43 1973 55 65 62 37 27 22 22 25 33 42 63 37 41 1974 36 54 49 42 31 29 29 32 38 63 76 65 45 1975 46 75 61 40 31 25 21 30 32 61 77 49 46 1976 62 56 68 54 28 30 *** 24 31 44 51 70 *** 1977 60 78 56 39 30 24 23 20 24 48 73 71 46 1978 65 74 74 43 34 29 24 24 29 46 73 59 48 1979 67 77 70 46 44 28 23 31 39 54 68 *** *** 1980 60 68 65 38 34 31 27 32 37 52 75 74 49 1981 *** 72 69 39 33 30 28 36 51 67 78 71 *** 1982 *** *** 72 46 31 27 26 27 39 36 66 69 *** 1983 81 78 77 59 36 27 25 26 33 62 79 73 55 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 76 74 70 42 35 25 28 30 *** *** *** 76 *** 1986 64 79 75 64 37 25 26 32 31 44 70 80 52 1987 *** 77 65 53 39 33 31 33 39 50 60 69 *** 1988 72 78 75 50 36 24 29 29 35 48 76 76 52 1989 80 77 76 46 39 25 29 29 34 46 67 76 52 1990 84 78 70 48 35 29 31 27 30 51 65 82 53 1991 78 84 79 51 42 31 32 34 42 57 72 77 57 1992 82 81 73 64 48 37 31 34 47 50 57 81 57 1993 *** *** *** *** *** *** 29 27 40 *** 67 79 *** 1994 76 76 66 56 39 33 37 33 46 *** *** *** *** 1995 82 81 80 60 40 31 27 28 *** 59 67 83 *** 1996 76 79 78 49 38 28 28 34 32 56 71 79 54 1997 80 70 75 57 40 27 26 28 35 48 73 83 54 1998 76 79 64 50 36 28 25 26 33 52 70 67 51 1999 78 72 70 48 35 28 27 28 38 45 75 80 52 2000 77 79 73 43 29 28 31 26 30 43 72 78 51 2001 79 79 62 41 33 29 27 29 37 42 64 76 50 2002 74 75 62 55 37 28 28 26 35 41 65 77 50 2003 80 71 60 45 42 26 26 24 33 40 66 71 49 MEAN 70 73 69 48 36 28 27 29 36 50 69 72 51 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 16 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 09 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** 17 25 21 30 46 47 *** 1971 50 44 29 25 25 22 20 16 23 21 32 40 29 1972 64 63 39 23 22 16 16 17 18 21 29 60 32 1973 52 38 30 21 17 15 16 17 20 21 31 38 26 1974 60 47 31 22 21 20 21 20 24 29 48 46 32 1975 58 46 33 27 23 17 17 21 21 37 47 67 35 1976 56 59 53 31 20 18 *** 18 23 27 44 52 *** 1977 72 39 23 23 18 16 17 16 17 27 38 43 29 1978 52 48 33 21 21 19 18 17 20 22 53 52 31 1979 53 48 46 29 28 17 17 20 23 27 36 56 33 1980 68 54 41 24 23 20 20 21 23 26 31 46 33 1981 55 50 36 24 23 21 20 24 26 37 36 38 33 1982 61 68 46 29 20 19 19 20 25 23 37 65 36 1983 77 51 49 39 23 19 17 19 22 27 36 52 36 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 54 40 38 25 23 20 20 21 *** *** *** 56 *** 1986 35 55 54 31 21 17 17 20 17 24 38 65 33 1987 *** 37 34 30 21 22 21 20 22 26 29 32 *** 1988 45 47 38 30 22 15 19 20 23 23 34 40 30 1989 57 59 41 24 24 18 20 18 20 20 32 45 32 1990 68 53 43 31 21 19 21 18 18 26 34 51 34 1991 58 58 55 35 26 19 20 19 25 29 36 56 36 1992 75 55 47 39 29 21 19 21 24 27 33 59 37 1993 *** *** *** *** *** *** 18 20 22 *** 30 35 *** 1994 51 40 40 32 21 19 21 21 28 *** *** *** *** 1995 43 48 48 35 21 19 17 18 *** 26 28 60 *** 1996 59 52 53 24 21 18 20 20 18 25 32 41 32 1997 52 46 43 29 21 18 17 17 18 25 40 50 31 1998 57 50 38 26 21 18 17 17 18 23 24 27 28 1999 54 43 40 23 19 17 18 17 20 20 31 30 28 2000 50 44 34 20 16 18 19 17 18 23 40 44 29 2001 45 38 31 20 18 19 21 18 20 21 28 48 27 2002 52 42 24 30 20 17 18 15 18 20 30 49 28 2003 47 37 33 24 20 16 17 17 19 20 31 46 27 MEAN 56 48 39 27 22 18 19 19 21 25 35 48 31 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 17 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MONTHLY MEAN OF RELATIVE HUMIDITY AT HOUR 15 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** 28 33 27 36 48 60 *** 1971 62 62 42 31 30 25 23 21 29 29 50 60 39 1972 67 58 58 36 27 19 20 22 24 27 38 67 39 1973 58 58 48 28 21 18 17 21 26 30 48 64 36 1974 53 61 51 32 27 25 24 28 34 42 79 78 45 1975 72 78 67 38 30 23 22 28 31 59 85 75 51 1976 80 66 80 63 27 26 *** 27 34 43 68 74 *** 1977 73 70 41 38 28 23 24 21 24 36 63 74 43 1978 74 72 60 30 26 23 19 21 24 36 70 63 43 1979 67 72 66 42 35 22 18 25 31 38 61 74 46 1980 75 71 58 33 33 25 24 27 31 39 50 75 45 1981 73 73 58 34 34 27 25 30 35 53 72 76 49 1982 73 78 66 37 25 24 21 25 32 30 55 76 45 1983 84 79 69 52 28 22 21 24 27 40 61 73 48 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 78 71 60 35 30 23 24 24 *** *** *** 74 *** 1986 60 77 65 43 28 20 20 22 24 30 56 80 44 1987 *** 68 59 44 28 27 26 24 28 38 44 51 *** 1988 76 77 64 46 28 20 24 24 30 33 76 60 47 1989 74 81 66 39 32 21 24 25 26 30 51 74 45 1990 83 71 56 42 26 23 25 21 27 38 49 67 44 1991 79 75 68 47 33 23 22 25 34 39 53 73 48 1992 81 80 68 52 40 27 23 28 33 37 47 73 49 1993 *** *** *** *** *** *** 24 25 28 *** 47 63 *** 1994 72 66 54 40 29 23 25 25 36 *** *** *** *** 1995 76 76 63 44 27 22 20 20 *** 37 43 78 *** 1996 78 72 65 31 27 22 22 23 21 32 48 70 43 1997 75 72 60 39 26 21 19 19 21 36 61 72 43 1998 77 70 54 35 25 21 19 19 20 28 36 45 37 1999 70 61 55 31 24 19 21 21 26 27 43 45 37 2000 70 69 53 26 19 20 21 20 20 28 57 69 39 2001 73 63 45 25 20 21 21 20 25 32 48 67 38 2002 72 63 43 42 26 19 20 18 22 28 42 69 39 2003 68 58 50 33 27 21 20 20 24 25 45 65 38 MEAN 72 70 58 38 28 22 22 24 28 35 55 68 43 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 18 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 1970 *** *** *** *** *** *** *** 0 0 2 2 20 *** 1971 27 17 6 0 0 0 0 0 0 0 3 16 69 1972 20 25 1 0 0 0 0 0 0 0 4 26 76 1973 24 8 5 0 0 0 0 0 0 0 17 31 85 1974 29 17 4 0 0 0 0 0 0 1 2 19 72 1975 25 7 6 0 0 0 0 0 0 0 5 30 73 1976 19 19 13 0 0 0 *** 0 0 0 17 21 *** 1977 20 17 0 0 0 0 0 0 0 0 4 12 53 1978 24 10 8 0 0 0 0 0 0 0 6 12 60 1979 7 7 6 0 0 0 0 0 0 0 8 16 44 1980 20 12 5 0 0 0 0 0 0 0 0 8 45 1981 20 11 2 2 0 0 0 0 0 0 1 7 43 1982 *** *** 4 0 0 0 0 0 0 0 4 16 *** 1983 21 23 13 0 0 0 0 0 0 0 1 14 72 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 12 8 6 0 0 0 0 0 *** *** *** *** *** 1986 16 6 4 0 0 0 0 0 0 0 4 9 39 1987 *** 11 0 0 0 0 0 0 0 0 4 17 *** 1988 16 7 1 0 0 0 0 0 0 0 22 13 59 1989 23 22 0 0 0 0 0 0 0 0 0 10 55 1990 13 7 4 0 0 0 0 0 0 0 10 14 48 1991 11 9 0 0 0 0 0 0 0 0 4 10 34 1992 23 16 0 0 0 0 0 0 0 0 0 3 42 1993 *** *** *** *** *** *** 0 0 0 *** 4 9 *** 1994 13 15 0 1 0 0 0 0 0 *** *** *** *** 1995 16 12 11 0 0 0 0 0 *** 0 8 10 *** 1996 16 4 0 0 0 0 0 0 0 0 8 9 37 1997 16 19 2 0 0 0 0 0 0 0 1 5 43 1998 12 5 3 0 0 0 0 0 0 0 0 2 22 1999 10 2 0 0 0 0 0 0 0 0 8 15 35 2000 13 9 1 0 0 0 0 0 0 0 0 2 25 2001 20 11 1 0 0 0 0 0 0 0 3 0 35 2002 12 4 1 0 0 0 0 0 0 0 2 11 30 2003 5 2 3 0 0 0 0 0 0 0 9 11 30 MEAN 17 11 4 0 0 0 0 0 0 0 5 13 50 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 19 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 1970 *** *** *** *** *** *** *** 6 0 0 0 0 *** 1971 0 0 0 0 3 3 3 0 0 0 0 0 9 1972 0 0 0 0 0 0 1 1 0 0 0 0 2 1973 0 0 0 0 0 4 4 4 0 0 0 0 12 1974 0 0 0 0 0 0 1 0 0 0 0 0 1 1975 0 0 0 0 0 11 19 3 0 0 0 0 33 1976 0 0 0 0 0 7 *** 1 0 0 0 0 *** 1977 0 0 0 0 0 0 0 5 0 0 0 0 5 1978 0 0 0 0 0 5 3 0 0 0 0 0 8 1979 0 0 0 0 0 2 11 0 0 0 0 0 13 1980 0 0 0 0 0 3 2 0 0 0 0 0 5 1981 0 0 0 0 0 2 4 0 0 0 0 0 6 1982 *** *** 0 0 0 0 0 3 0 0 0 0 *** 1983 0 0 0 0 0 1 7 6 1 0 0 0 15 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 0 0 0 0 0 2 2 1 *** *** *** *** *** 1986 0 0 0 0 0 3 2 1 0 0 0 0 6 1987 *** 0 0 0 0 0 0 2 0 0 0 0 *** 1988 0 0 0 0 0 5 14 0 0 0 0 0 19 1989 0 0 0 0 0 1 8 1 0 0 0 0 10 1990 0 0 0 0 0 3 2 3 0 0 0 0 8 1991 0 0 0 0 0 2 0 0 0 0 0 0 2 1992 0 0 0 0 0 3 4 0 0 0 0 0 7 1993 *** *** *** *** *** *** 13 3 0 *** 0 0 *** 1994 0 0 0 0 0 2 5 4 0 *** *** *** *** 1995 0 0 0 0 0 3 24 3 *** 0 0 0 *** 1996 0 0 0 0 0 6 3 3 1 0 0 0 13 1997 0 0 0 0 0 4 14 7 0 0 0 0 25 1998 0 0 0 0 1 1 10 6 0 0 0 0 18 1999 0 0 0 0 0 2 8 4 0 0 0 0 14 2000 0 0 0 0 1 2 4 5 0 0 0 0 12 2001 0 0 0 0 0 6 6 1 1 0 0 0 14 2002 0 0 0 0 0 4 5 4 0 0 0 0 13 2003 0 0 0 0 0 1 11 4 0 0 0 0 16 MEAN 0 0 0 0 0 3 6 2 0 0 0 0 11 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 20 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 1970 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1971 0 0 0 0 0 0 0 0 0 0 0 1 1 1972 5 7 0 0 0 0 0 0 0 0 0 4 16 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 2 4 0 0 0 0 0 0 0 0 0 0 6 1975 1 0 0 0 0 0 0 0 0 0 1 0 2 1976 0 1 0 0 0 0 *** 0 0 0 0 0 *** 1977 8 0 0 0 0 0 0 0 0 0 0 0 8 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 4 3 0 0 0 0 0 0 0 0 0 0 7 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 2 *** 0 0 0 0 0 0 0 0 0 6 *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 0 0 0 0 0 0 0 0 *** *** *** 1 *** 1986 0 0 1 0 0 0 0 0 0 0 0 2 3 1987 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1988 0 1 0 0 0 0 0 0 0 0 0 0 1 1989 3 1 0 0 0 0 0 0 0 0 0 0 4 1990 0 0 0 0 0 0 0 0 0 0 0 4 4 1991 0 2 0 0 0 0 0 0 0 0 0 0 2 1992 4 1 0 0 0 0 0 0 0 0 0 0 5 1993 *** *** *** *** *** *** 0 0 0 *** 0 0 *** 1994 0 1 0 0 0 0 0 0 0 *** *** *** *** 1995 0 0 0 0 0 0 0 0 *** 0 0 0 *** 1996 9 0 0 0 0 0 0 0 0 0 0 0 9 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 2 0 0 0 0 0 0 0 0 0 0 0 2 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 3 0 0 0 0 0 0 0 0 0 0 0 3 2001 2 0 0 0 0 0 0 0 0 0 0 0 2 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 1 1 MEAN 2 1 0 0 0 0 0 0 0 0 0 1 4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 21 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 1970 *** *** *** *** *** *** 14 31 8 2 0 0 *** 1971 0 0 0 0 17 26 28 27 5 0 0 0 103 1972 0 0 0 0 4 22 22 15 8 0 0 0 71 1973 0 0 0 3 16 30 29 22 9 3 0 0 112 1974 0 0 0 0 18 26 31 16 5 0 0 0 96 1975 0 0 0 0 11 30 31 8 11 0 0 0 91 1976 0 0 0 0 23 23 *** 30 6 0 0 0 *** 1977 0 0 0 8 24 30 30 31 27 5 0 0 155 1978 0 0 0 0 17 23 20 17 12 0 0 0 89 1979 0 0 0 7 2 17 25 10 9 2 0 0 72 1980 0 0 0 6 12 17 28 18 5 7 0 0 93 1981 0 0 0 9 8 17 20 5 0 0 0 0 59 1982 0 *** 0 2 22 26 28 17 0 0 0 0 *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 0 0 0 5 10 26 31 23 *** *** *** 0 *** 1986 0 0 0 0 9 21 25 5 4 9 0 0 73 1987 *** 0 0 4 13 16 25 31 18 6 0 0 *** 1988 0 0 0 3 21 27 31 26 12 0 0 0 120 1989 0 0 0 0 8 24 29 21 18 4 0 0 104 1990 0 0 0 1 22 26 27 26 18 1 0 0 121 1991 0 0 0 2 8 22 30 19 1 0 0 0 82 1992 0 0 0 0 0 24 24 11 4 0 0 0 63 1993 *** *** *** *** *** *** 27 26 11 *** 0 0 *** 1994 0 0 0 4 12 22 24 18 0 *** *** *** *** 1995 0 0 0 0 9 23 31 17 *** 0 0 0 *** 1996 0 0 0 3 10 17 20 17 22 0 0 0 89 1997 0 0 0 0 8 26 29 18 20 7 0 0 108 1998 0 0 0 3 14 12 25 27 20 6 0 0 107 1999 0 0 0 0 12 26 24 30 15 1 0 0 108 2000 0 0 0 12 28 24 24 21 24 2 0 0 135 2001 0 0 0 6 24 21 26 25 13 5 0 0 120 2002 0 0 0 1 15 23 20 26 14 2 0 0 101 2003 0 0 0 6 4 25 30 24 13 3 0 0 105 MEAN 0 0 0 3 13 23 26 21 11 2 0 0 99 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 22 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 1970 *** *** *** *** *** *** 0 2 0 0 0 0 *** 1971 0 0 0 0 0 0 0 0 0 0 0 0 0 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 1 0 0 0 0 0 1 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 0 0 0 0 0 0 0 1976 0 0 0 0 0 0 *** 0 0 0 0 0 *** 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 0 0 0 2 0 0 0 0 0 0 2 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 0 0 0 0 0 0 0 0 *** *** *** 0 *** 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1988 0 0 0 0 0 6 2 0 0 0 0 0 8 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 1 0 0 0 0 0 1 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 *** *** *** *** *** *** 0 0 0 *** 0 0 *** 1994 0 0 0 0 0 0 0 0 0 *** *** *** *** 1995 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 2 0 0 0 0 0 2 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 2 1 0 0 0 0 3 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 0 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 23 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 1970 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1971 0 0 0 0 0 0 0 0 0 0 0 0 0 1972 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 0 0 0 0 0 0 0 0 0 0 0 0 0 1974 0 0 0 0 0 0 0 0 0 0 0 0 0 1975 0 0 0 0 0 0 0 0 0 0 0 0 0 1976 0 0 0 0 0 0 *** 0 0 0 0 0 *** 1977 0 0 0 0 0 0 0 0 0 0 0 0 0 1978 0 0 0 0 0 0 0 0 0 0 0 0 0 1979 0 0 0 0 0 0 0 0 0 0 0 0 0 1980 0 0 0 0 0 0 0 0 0 0 0 0 0 1981 0 0 0 0 0 0 0 0 0 0 0 0 0 1982 0 *** 0 0 0 0 0 0 0 0 0 0 *** 1983 *** *** *** *** *** *** *** *** *** *** *** *** *** 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 0 0 0 0 0 0 0 0 *** *** *** 0 *** 1986 0 0 0 0 0 0 0 0 0 0 0 0 0 1987 *** 0 0 0 0 0 0 0 0 0 0 0 *** 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 0 0 0 0 0 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 *** *** *** *** *** *** 0 0 0 *** 0 0 *** 1994 0 0 0 0 0 0 0 0 0 *** *** *** *** 1995 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 24 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 -------------- 1970 *** *** *** *** *** *** *** 0 0 6 20 28 *** 10 23 12 31 1971 30 23 15 0 0 0 0 0 0 1 10 28 107 10 24 3 28 1972 29 27 10 0 0 0 0 0 0 0 10 31 107 11 1 3 31 1973 29 20 11 0 0 0 0 0 0 4 21 31 116 10 2 3 18 1974 31 22 5 0 0 0 0 0 1 11 7 30 107 9 30 3 11 1975 29 17 8 0 0 0 0 0 0 5 15 30 104 10 24 3 13 1976 29 25 31 1 0 0 *** 0 0 0 22 31 *** 11 9 4 12 1977 30 25 3 0 0 0 0 0 0 0 16 23 97 11 3 3 10 1978 26 19 14 2 0 0 0 0 0 0 14 18 93 11 4 4 16 1979 21 20 15 0 0 0 0 0 0 0 13 26 95 11 7 3 21 1980 24 21 7 0 0 0 0 0 0 4 7 26 89 10 22 3 12 1981 27 20 11 2 0 0 0 0 0 6 22 31 119 10 26 4 4 1982 *** *** 8 2 0 0 0 0 0 0 11 19 *** 11 17 4 4 1983 29 28 23 0 0 0 0 0 0 5 11 28 124 10 22 3 27 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** ** ** ** ** 1985 24 14 11 0 0 0 0 0 *** *** *** *** *** 1 1 3 15 1986 19 15 15 0 0 0 0 0 0 1 9 22 81 10 17 3 31 1987 *** 22 6 2 0 0 0 0 0 1 13 23 *** 10 12 4 9 1988 22 22 16 3 0 0 0 0 0 0 30 27 120 11 1 4 9 1989 29 28 15 2 3 0 0 0 0 0 14 23 114 11 2 5 4 1990 27 15 7 0 0 0 0 0 0 2 17 24 92 10 15 3 24 1991 21 21 9 0 0 0 0 0 0 0 13 16 80 11 8 3 21 1992 24 22 5 0 0 0 0 0 0 0 0 15 66 12 1 3 27 1993 *** *** *** *** *** *** 0 0 0 *** 9 29 *** 11 7 12 31 1994 22 24 0 3 0 0 0 0 0 *** *** *** *** 1 1 4 7 1995 26 18 14 0 0 0 0 0 *** 3 15 22 *** 10 18 3 29 1996 28 8 4 0 0 0 0 0 0 0 13 20 73 11 12 3 27 1997 26 21 11 1 0 0 0 0 0 0 10 22 91 11 9 4 14 1998 18 13 4 0 0 0 0 0 0 0 3 8 46 11 24 3 6 1999 20 9 8 1 0 0 0 0 0 0 13 23 74 11 4 4 13 2000 23 18 5 0 0 0 0 0 0 0 11 12 69 11 12 3 5 2001 30 20 3 0 0 0 0 0 0 0 8 8 69 11 3 3 28 2002 19 10 9 0 0 0 0 0 0 0 9 23 70 11 10 3 12 2003 19 11 8 0 0 0 0 0 0 0 14 19 71 11 5 3 15 MEAN 25 19 10 1 0 0 0 0 0 2 13 23 93 9 30 5 4 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 25 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 28.5 20.7 16.4 12.1 3.5 ****** 1971 1.1 4.2 10.9 15.8 24.1 26.7 26.6 25.5 19.5 16.5 10.4 5.8 15.6 1972 -1.3 -2.0 8.0 14.9 19.0 25.8 25.6 23.2 21.1 17.7 12.3 0.2 13.7 1973 0.4 6.6 9.6 18.5 23.4 27.5 27.6 25.8 21.7 17.8 9.4 2.7 15.9 1974 -1.6 1.2 11.2 16.9 24.0 27.2 26.4 24.3 18.5 12.3 4.8 2.9 14.0 1975 0.3 3.8 8.5 16.2 24.3 28.2 28.8 23.2 22.4 11.0 3.9 -0.0 14.2 1976 1.5 0.4 2.0 10.9 24.9 26.8 ****** 27.9 22.6 16.8 4.1 0.5 ****** 1977 -2.2 5.0 14.2 16.3 23.7 28.7 28.6 29.5 26.2 17.3 8.5 4.2 16.6 1978 1.9 4.1 8.1 18.0 22.9 26.7 26.5 24.4 21.4 15.4 7.2 6.7 15.3 1979 4.2 4.8 7.6 17.4 18.4 25.3 27.9 24.3 20.6 17.2 8.5 2.1 14.9 1980 -0.0 3.9 9.8 20.5 21.5 24.7 26.8 24.2 20.5 16.2 11.1 5.0 15.3 1981 3.2 4.8 10.4 20.1 21.3 25.3 26.8 21.6 17.0 11.1 7.2 6.0 14.6 1982 2.4 -0.4 7.0 16.6 24.7 25.8 27.4 25.4 19.1 20.1 10.9 -0.9 14.8 1983 -0.9 3.4 5.4 13.0 23.4 28.7 29.3 27.3 24.1 15.4 9.0 3.5 15.1 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 3.3 6.5 8.9 17.9 21.5 28.0 27.3 26.0 ****** ****** ****** 3.6 ****** 1986 2.3 3.5 5.3 15.5 22.4 26.4 26.2 23.4 21.3 18.5 9.7 2.1 14.7 1987 ****** 6.1 10.0 16.1 22.1 25.3 26.9 27.5 24.2 16.1 11.8 7.4 ****** 1988 3.9 4.6 8.8 16.3 24.3 29.0 29.1 25.3 21.6 17.2 4.6 6.4 15.9 1989 -0.3 0.2 8.4 15.3 20.2 28.2 27.9 25.6 23.4 17.9 10.1 5.7 15.2 1990 2.3 5.5 8.4 16.2 24.5 27.1 26.8 26.9 23.0 15.1 11.2 3.6 15.9 1991 3.9 3.2 9.1 16.0 20.9 27.1 27.4 25.0 18.2 14.2 9.3 5.3 15.0 1992 -0.3 3.0 7.8 13.5 17.5 26.4 26.7 23.7 19.1 15.7 12.6 5.6 14.3 1993 ****** ****** ****** ****** ****** ****** 27.8 26.5 21.7 ****** 12.0 6.3 ****** 1994 3.9 4.6 11.8 15.7 22.2 26.9 26.7 26.8 18.0 ****** ****** ****** ****** 1995 4.6 5.5 8.5 15.4 21.3 25.6 30.4 26.8 ****** 15.0 11.3 3.6 ****** 1996 -0.6 6.0 9.0 17.3 21.9 26.3 26.0 24.6 25.8 15.6 9.6 5.3 15.6 1997 3.4 3.6 8.5 14.6 20.5 26.5 28.2 26.1 23.3 17.2 8.1 4.9 15.4 1998 3.0 5.9 10.5 16.9 21.5 24.5 27.5 26.7 24.1 17.2 12.9 11.3 16.8 1999 4.0 8.5 9.6 17.0 21.6 27.6 27.1 26.3 22.5 19.2 10.4 8.6 16.9 2000 4.0 5.5 9.1 20.2 26.2 26.1 25.8 26.2 24.9 19.0 9.0 6.6 16.9 2001 2.7 6.3 12.0 20.0 25.1 27.0 27.4 26.3 22.3 18.7 11.5 8.4 17.3 2002 4.9 7.2 12.5 16.8 23.1 27.1 26.4 26.8 22.1 18.6 11.7 5.3 16.9 2003 5.2 8.0 10.7 18.2 19.3 25.9 29.1 25.9 21.9 19.3 10.1 5.5 16.6 MEAN 2.0 4.3 9.1 16.6 22.3 26.7 27.4 25.7 21.7 16.5 9.5 4.6 15.5 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 26 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 9.0 -0.8 1.7 2.3 -4.7 ****** 1971 -6.4 -3.9 -2.4 -1.6 4.7 4.8 3.9 1.1 0.8 -1.2 -0.8 -3.2 -0.4 1972 -7.9 -10.8 -1.4 -1.5 -0.8 0.4 0.5 -0.5 -0.6 -1.4 -1.5 -6.7 -2.7 1973 -5.6 -2.9 -2.4 -0.8 -0.1 1.0 1.0 1.1 0.8 -0.6 -2.5 -8.5 -1.6 1974 -11.9 -8.2 -2.2 -1.0 3.1 5.0 4.4 3.5 0.8 -0.5 -1.2 -4.3 -1.0 1975 -7.9 -2.4 -1.5 0.1 3.9 3.9 3.2 2.4 2.7 0.4 -1.9 -6.9 -0.3 1976 -4.6 -7.1 -4.0 -0.8 2.8 3.9 ****** 4.1 3.4 1.7 -5.6 -5.7 ****** 1977 -7.8 -2.8 -0.7 -0.9 2.1 3.6 3.6 3.2 1.9 1.2 -0.2 -3.2 0.0 1978 -5.0 -2.8 -1.6 -0.7 2.5 3.6 1.6 0.1 -0.4 -1.1 0.7 -1.9 -0.4 1979 -2.9 -1.1 0.7 1.5 1.5 1.8 2.1 2.6 2.0 2.3 -0.2 ****** ****** 1980 ****** -1.0 0.3 2.4 2.9 3.1 4.0 3.3 1.8 0.8 0.3 -1.2 ****** 1981 ****** -1.5 0.6 2.0 2.8 3.9 4.5 2.9 1.6 0.7 -0.7 -1.9 ****** 1982 ****** ****** -0.6 1.2 3.2 3.1 3.6 2.8 1.5 1.4 0.4 -5.0 ****** 1983 -3.9 -2.1 -1.3 1.8 3.7 4.8 4.2 4.1 3.6 1.5 0.2 -3.0 1.1 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 -2.2 -1.1 -0.3 1.0 2.5 4.5 4.6 4.0 ****** ****** ****** -2.3 ****** 1986 -7.5 -2.3 -1.9 2.2 1.9 1.6 1.8 1.3 -0.8 0.4 -0.5 -2.3 -0.5 1987 ****** -2.0 -0.6 1.3 1.9 4.6 5.3 5.6 4.7 0.4 -1.3 -3.6 ****** 1988 -3.3 -2.0 0.0 2.0 4.0 2.8 6.0 3.0 2.2 0.7 -3.3 -2.5 0.8 1989 -5.8 -4.7 0.0 -1.0 1.4 3.6 5.1 3.1 2.2 -0.2 -1.0 -1.1 0.1 1990 -1.5 -0.7 -0.6 1.6 3.6 4.3 5.3 3.0 1.2 -0.3 -0.0 -2.8 1.1 1991 -1.2 -1.8 2.9 2.9 3.4 4.5 4.9 3.3 1.1 0.6 -0.7 -0.9 1.6 1992 -3.6 -2.0 0.5 2.7 2.7 5.7 4.2 3.3 2.3 0.4 0.3 0.2 1.4 1993 ****** ****** ****** ****** ****** ****** 4.3 4.1 2.4 ****** 0.0 -2.2 ****** 1994 -2.6 -3.4 1.5 1.8 2.9 4.6 5.7 5.3 2.4 ****** ****** ****** ****** 1995 -1.8 -0.5 1.2 2.3 1.9 3.0 5.6 2.8 ****** 0.1 -1.5 -1.2 ****** 1996 -5.8 -0.2 1.8 0.3 1.9 2.9 3.3 3.2 2.8 -0.1 -1.8 -2.0 0.5 1997 -2.5 -3.8 0.1 0.6 0.7 2.5 3.3 1.7 1.0 0.7 -0.7 -1.1 0.2 1998 -2.3 -0.6 -0.3 0.7 0.8 1.3 2.4 1.9 1.1 -0.1 -1.0 -1.2 0.2 1999 -2.5 -0.0 -0.1 -0.1 0.3 2.8 3.1 2.4 1.9 0.4 -1.0 -2.2 0.4 2000 -2.7 -1.6 -1.0 0.7 1.7 2.0 2.8 1.9 1.5 0.7 -0.4 -0.7 0.4 2001 -4.0 -2.0 -0.7 0.4 2.3 3.6 3.8 2.9 1.8 0.6 -1.0 1.2 0.7 2002 -1.5 -1.1 -1.5 2.8 2.7 2.4 2.5 1.1 0.2 -0.5 -0.8 -1.4 0.4 2003 -1.6 -1.3 -1.2 0.8 -0.1 1.3 3.5 1.1 0.2 -0.4 -2.1 -2.2 -0.2 MEAN -4.3 -2.6 -0.5 0.8 2.2 3.3 3.7 2.9 1.5 0.3 -0.9 -2.7 0.3 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 27 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 9.14 4.55 5.45 5.71 3.42 ****** 1971 3.00 3.54 3.90 4.18 6.94 6.72 6.10 5.10 4.88 4.22 4.35 3.75 4.72 1972 2.93 2.70 4.14 4.09 4.31 4.72 4.72 4.40 4.37 4.11 4.11 3.14 3.98 1973 3.33 3.85 3.94 4.30 4.52 4.89 4.95 5.05 4.90 4.39 4.12 3.02 4.27 1974 2.44 3.00 4.05 4.25 5.72 6.52 6.27 5.91 4.90 4.40 4.23 3.56 4.60 1975 2.98 3.90 4.16 4.66 6.09 6.07 5.88 5.47 5.55 4.75 4.06 3.17 4.73 1976 3.46 3.10 3.58 4.43 5.83 6.24 ****** 6.20 5.92 5.20 3.51 3.19 ****** 1977 2.98 3.83 4.45 4.29 5.37 5.99 5.99 5.77 5.27 5.08 4.66 3.84 4.79 1978 3.52 3.85 4.13 4.35 5.48 5.94 5.13 4.59 4.45 4.22 5.00 4.45 4.59 1979 3.90 4.36 4.93 5.14 5.26 5.24 5.34 5.51 5.34 5.49 4.56 ****** ****** 1980 ****** 4.54 4.84 5.48 5.61 5.76 6.10 5.79 5.22 4.87 4.70 4.33 ****** 1981 ****** 4.26 4.86 5.36 5.57 6.06 6.30 5.62 5.12 4.87 4.40 4.16 ****** 1982 ****** ****** 4.49 5.05 5.76 5.69 5.90 5.62 5.10 5.05 4.79 3.49 ****** 1983 3.62 4.04 4.27 5.22 5.97 6.44 6.17 6.11 5.91 5.12 4.69 3.89 5.12 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 4.04 4.30 4.55 4.93 5.48 6.28 6.32 6.07 ****** ****** ****** 4.03 ****** 1986 2.75 3.98 4.25 5.71 5.33 5.14 5.24 5.12 4.38 4.75 4.48 4.16 4.61 1987 ****** 4.01 4.49 5.11 5.44 6.40 6.79 6.81 6.43 4.73 4.33 3.66 ****** 1988 3.77 4.10 4.72 5.51 6.13 5.66 7.03 5.71 5.37 4.82 3.67 3.92 5.03 1989 3.13 3.37 4.68 4.30 5.16 5.94 6.61 5.75 5.44 4.54 4.33 4.36 4.80 1990 4.33 4.53 4.43 5.16 5.94 6.20 6.65 5.71 5.09 4.52 4.68 3.99 5.10 1991 4.39 4.18 5.79 5.69 5.86 6.29 6.51 5.79 5.00 4.80 4.40 4.48 5.27 1992 3.81 4.11 4.81 5.61 5.62 6.95 6.19 5.89 5.40 4.79 4.69 4.73 5.21 1993 ****** ****** ****** ****** ****** ****** 6.37 6.16 5.50 ****** 4.67 3.97 ****** 1994 3.96 3.73 5.20 5.34 5.71 6.35 6.91 6.65 5.48 ****** ****** ****** ****** 1995 4.13 4.58 5.25 5.57 5.27 5.70 6.79 5.59 ****** 4.63 4.18 4.35 ****** 1996 3.29 4.60 5.47 4.69 5.30 5.64 5.79 5.74 5.60 4.53 4.07 4.04 4.90 1997 3.91 3.65 4.72 4.81 4.82 5.51 5.79 5.17 4.94 4.86 4.40 4.29 4.74 1998 4.06 4.46 4.54 4.83 4.88 5.01 5.42 5.24 4.95 4.54 4.25 4.20 4.70 1999 3.99 4.64 4.58 4.53 4.68 5.62 5.71 5.43 5.29 4.69 4.31 3.93 4.78 2000 3.89 4.12 4.26 4.83 5.20 5.30 5.61 5.21 5.10 4.81 4.50 4.41 4.77 2001 3.55 4.00 4.36 4.74 5.39 5.93 6.02 5.61 5.22 4.78 4.27 5.09 4.91 2002 4.21 4.33 4.14 5.64 5.54 5.41 5.49 4.98 4.65 4.42 4.34 4.23 4.78 2003 4.11 4.19 4.24 4.86 4.56 5.05 6.05 4.95 4.64 4.42 3.98 4.02 4.59 MEAN 3.61 3.99 4.52 4.92 5.44 5.83 6.00 5.69 5.16 4.73 4.40 3.98 4.86 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 28 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 12.26 6.12 7.31 7.63 4.56 ****** 1971 4.00 4.73 5.22 5.61 9.32 9.03 8.22 6.87 6.56 5.67 5.82 5.00 6.34 1972 3.90 3.59 5.53 5.48 5.81 6.37 6.38 5.93 5.89 5.53 5.51 4.18 5.34 1973 4.45 5.14 5.28 5.79 6.09 6.61 6.69 6.81 6.60 5.90 5.50 4.03 5.74 1974 3.25 4.00 5.43 5.71 7.71 8.79 8.45 7.95 6.59 5.90 5.64 4.74 6.18 1975 3.96 5.21 5.56 6.26 8.19 8.19 7.94 7.36 7.47 6.35 5.41 4.23 6.34 1976 4.61 4.13 4.77 5.92 7.84 8.40 ****** 8.36 7.96 6.98 4.69 4.25 ****** 1977 3.97 5.11 5.97 5.77 7.24 8.08 8.08 7.80 7.10 6.81 6.22 5.13 6.44 1978 4.70 5.14 5.51 5.85 7.37 8.00 6.93 6.20 5.99 5.66 6.67 5.94 6.16 1979 5.20 5.81 6.59 6.90 7.06 7.07 7.21 7.42 7.19 7.36 6.09 ****** ****** 1980 ****** 6.05 6.47 7.36 7.54 7.75 8.22 7.80 7.03 6.54 6.29 5.77 ****** 1981 ****** 5.68 6.50 7.20 7.49 8.17 8.50 7.56 6.87 6.51 5.88 5.55 ****** 1982 ****** ****** 6.00 6.77 7.76 7.67 7.96 7.57 6.86 6.79 6.40 4.65 ****** 1983 4.81 5.38 5.70 6.99 8.04 8.69 8.33 8.23 7.96 6.87 6.27 5.18 6.87 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 5.39 5.74 6.08 6.62 7.37 8.47 8.52 8.17 ****** ****** ****** 5.37 ****** 1986 3.67 5.31 5.66 7.64 7.17 6.94 7.07 6.90 5.90 6.38 5.99 5.54 6.18 1987 ****** 5.36 6.00 6.85 7.31 8.62 9.14 9.17 8.66 6.35 5.80 4.89 ****** 1988 5.02 5.47 6.31 7.39 8.25 7.64 9.48 7.70 7.22 6.47 4.89 5.24 6.76 1989 4.16 4.49 6.25 5.77 6.94 8.02 8.90 7.74 7.33 6.10 5.79 5.82 6.44 1990 5.77 6.04 5.92 6.92 8.00 8.36 8.96 7.70 6.85 6.06 6.27 5.32 6.85 1991 5.85 5.57 7.73 7.62 7.88 8.48 8.77 7.80 6.71 6.44 5.88 5.97 7.06 1992 5.07 5.47 6.41 7.50 7.54 9.35 8.34 7.92 7.25 6.42 6.28 6.30 6.99 1993 ****** ****** ****** ****** ****** ****** 8.58 8.30 7.40 ****** 6.25 5.30 ****** 1994 5.28 4.98 6.96 7.16 7.68 8.56 9.30 8.96 7.36 ****** ****** ****** ****** 1995 5.50 6.11 7.00 7.46 7.09 7.68 9.16 7.54 ****** 6.21 5.60 5.80 ****** 1996 4.38 6.13 7.30 6.30 7.13 7.61 7.80 7.73 7.55 6.08 5.45 5.39 6.57 1997 5.21 4.87 6.31 6.45 6.49 7.43 7.82 6.98 6.65 6.52 5.87 5.72 6.36 1998 5.41 5.95 6.07 6.49 6.57 6.76 7.32 7.08 6.67 6.10 5.70 5.62 6.31 1999 5.32 6.19 6.12 6.09 6.31 7.58 7.70 7.32 7.12 6.31 5.76 5.25 6.42 2000 5.19 5.49 5.69 6.50 7.02 7.15 7.56 7.04 6.88 6.47 6.02 5.89 6.41 2001 4.74 5.34 5.84 6.38 7.27 8.00 8.12 7.57 7.03 6.43 5.71 6.79 6.60 2002 5.61 5.78 5.54 7.56 7.46 7.31 7.40 6.72 6.27 5.95 5.81 5.65 6.42 2003 5.49 5.60 5.68 6.53 6.13 6.81 8.16 6.68 6.26 5.95 5.33 5.37 6.16 MEAN 4.81 5.33 6.04 6.61 7.32 7.86 8.10 7.67 6.94 6.35 5.88 5.31 6.52 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 29 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 ****** ****** ****** ****** ****** ****** ****** 28.06 19.78 13.41 7.81 4.37 ****** 1971 3.47 4.31 9.25 13.27 22.08 26.95 27.42 26.51 17.37 14.59 7.61 5.11 14.83 1972 2.10 2.35 5.67 12.53 17.22 27.99 27.25 23.58 20.70 15.53 9.89 2.51 13.94 1973 3.48 5.68 7.46 16.68 23.84 31.35 31.64 27.40 20.70 16.22 8.16 4.92 16.46 1974 2.84 3.48 9.29 14.81 23.22 28.24 26.87 23.30 16.09 9.32 3.25 3.35 13.67 1975 2.78 3.30 6.38 13.00 23.04 31.25 32.86 21.91 20.52 7.88 3.13 2.23 14.02 1976 2.64 2.80 2.74 8.14 24.73 27.61 ****** 30.09 20.26 13.16 5.04 2.74 ****** 1977 1.65 4.61 12.02 14.38 23.86 32.40 31.75 34.34 28.10 14.53 5.89 4.24 17.32 1978 3.23 3.89 6.54 16.29 21.95 28.48 28.74 25.15 20.65 13.15 4.38 4.89 14.78 1979 3.76 3.99 6.19 14.85 15.03 26.42 31.23 23.82 18.46 13.83 6.74 ****** ****** 1980 ****** 3.81 6.63 17.90 19.15 24.95 27.62 23.33 18.23 13.92 8.27 4.26 ****** 1981 ****** 3.87 7.39 18.00 18.86 25.23 27.86 19.10 13.61 8.09 5.32 5.05 ****** 1982 ****** ****** 4.69 13.23 24.55 26.54 29.32 26.54 16.06 17.44 8.20 1.88 ****** 1983 1.18 3.01 3.91 9.17 21.76 32.08 33.71 29.32 23.60 12.70 6.35 3.72 15.04 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 2.96 4.75 6.67 15.21 19.43 30.16 28.53 26.41 ****** ****** ****** 3.39 ****** 1986 4.25 3.08 4.03 10.90 21.09 28.41 27.71 22.78 20.44 16.54 7.37 2.19 14.06 1987 ****** 5.19 7.09 13.50 20.78 24.45 27.53 28.64 22.98 14.17 9.92 6.99 ****** 1988 3.62 3.75 5.89 12.88 23.46 33.96 31.71 25.59 20.00 14.52 4.48 5.46 15.44 1989 2.38 2.17 5.54 12.83 18.68 31.11 29.45 25.89 23.01 16.23 7.57 4.03 14.91 1990 1.90 3.59 5.88 12.66 23.99 28.64 27.11 28.88 22.64 12.44 8.65 4.00 15.03 1991 2.72 2.80 4.40 11.60 18.20 28.96 29.15 25.64 15.32 10.79 6.92 3.84 13.36 1992 1.53 3.03 4.58 9.10 13.47 26.27 27.59 22.31 16.29 12.67 9.18 3.22 12.44 1993 ****** ****** ****** ****** ****** ****** 29.67 27.03 20.06 ****** 9.21 5.29 ****** 1994 3.62 4.40 7.70 12.51 20.55 28.50 26.65 27.73 14.32 ****** ****** ****** ****** 1995 3.73 3.70 5.01 11.18 19.86 26.74 35.72 29.01 ****** 12.67 9.73 2.60 ****** 1996 2.37 3.83 4.66 15.02 20.68 28.36 26.60 24.62 27.54 13.18 8.28 4.43 14.96 1997 3.22 4.22 5.39 11.05 19.40 28.63 31.64 28.43 24.22 14.81 5.69 3.41 15.01 1998 2.71 3.95 7.64 14.40 21.02 25.13 31.10 29.16 25.41 15.68 10.62 8.89 16.31 1999 3.58 5.53 6.65 14.55 21.15 31.42 29.77 28.38 22.35 17.60 8.16 7.23 16.36 2000 3.77 4.09 6.57 19.44 29.19 28.45 26.96 27.98 26.01 16.94 6.49 4.46 16.70 2001 3.55 5.04 9.34 18.71 26.62 29.39 29.91 28.30 22.30 16.79 9.09 4.81 16.99 2002 3.82 5.08 10.28 12.99 22.43 30.56 28.07 30.02 22.26 16.90 8.86 3.80 16.26 2003 3.94 5.82 8.20 16.13 17.93 27.92 33.75 27.66 21.72 18.05 8.32 4.54 16.17 MEAN 2.99 3.97 6.57 13.77 21.20 28.60 29.51 26.57 20.68 14.12 7.37 4.25 14.97 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 30 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 32 28 41 53 58 *** 1971 61 59 45 34 30 26 24 22 30 32 50 56 39 1972 63 55 55 35 28 20 20 21 25 29 42 63 38 1973 58 53 47 29 22 18 18 21 26 31 47 46 35 1974 50 54 44 32 26 25 25 27 32 44 67 63 41 1975 58 66 54 35 28 22 20 26 28 52 69 63 43 1976 66 60 67 50 25 25 *** 23 30 38 54 65 *** 1977 68 62 40 33 26 21 21 19 21 37 58 63 39 1978 64 64 56 31 27 23 20 21 24 35 65 58 41 1979 62 65 58 39 35 23 19 25 31 40 55 *** *** 1980 *** 64 55 32 30 25 24 27 30 39 52 65 *** 1981 *** 65 54 32 30 26 25 30 37 52 62 62 *** 1982 *** *** 62 37 26 23 22 24 32 30 53 71 *** 1983 81 69 65 50 29 23 21 23 27 43 58 65 46 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 69 62 56 34 29 23 24 25 *** *** *** 68 *** 1986 53 70 65 46 28 21 21 25 24 32 55 75 43 1987 *** 60 53 42 30 27 26 26 30 38 45 51 *** 1988 64 67 59 42 29 20 24 24 29 35 62 58 43 1989 70 72 61 37 31 21 24 24 27 32 50 65 43 1990 78 68 57 40 27 24 26 22 25 38 49 67 43 1991 72 72 68 44 34 25 25 26 34 42 54 69 47 1992 79 71 63 52 39 29 25 28 35 38 45 71 48 1993 *** *** *** *** *** *** 24 24 30 *** 48 59 *** 1994 67 61 53 43 30 25 28 26 37 *** *** *** *** 1995 67 69 64 46 29 24 22 22 *** 40 46 73 *** 1996 70 67 65 35 29 23 24 26 24 37 50 63 43 1997 69 63 59 42 29 22 21 21 25 36 58 68 43 1998 70 66 52 37 27 22 20 21 24 34 43 46 39 1999 67 59 55 34 26 21 22 22 28 31 50 52 39 2000 66 64 53 30 22 22 23 21 23 31 56 64 40 2001 66 60 46 29 24 23 23 23 27 32 47 64 39 2002 66 60 43 42 28 21 22 20 25 30 46 65 39 2003 65 55 48 34 30 21 21 20 25 28 47 60 38 MEAN 66 63 56 38 28 23 23 24 28 37 53 62 42 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 31 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 40 36 56 67 73 *** 1971 75 76 65 47 37 32 31 30 39 47 71 72 52 1972 76 74 69 47 35 24 24 26 33 38 59 76 48 1973 77 74 67 37 27 22 22 26 34 43 66 67 47 1974 69 73 59 43 32 29 30 33 39 63 81 79 53 1975 76 82 70 42 34 26 25 32 34 64 87 81 54 1976 81 79 84 67 32 32 *** 29 36 47 72 77 *** 1977 81 81 57 42 33 27 27 23 26 49 77 80 50 1978 79 82 76 43 34 29 25 25 30 46 82 70 52 1979 77 81 75 51 45 29 23 31 39 54 73 *** *** 1980 *** 77 72 40 36 32 27 32 37 53 76 80 *** 1981 *** 80 73 41 35 30 28 36 51 68 80 81 *** 1982 *** *** 80 46 31 27 26 28 40 36 68 84 *** 1983 88 83 81 61 36 27 25 27 33 62 79 82 57 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 81 78 71 43 36 25 28 30 *** *** *** 79 *** 1986 72 85 82 64 38 26 27 33 31 45 70 87 55 1987 *** 79 71 54 40 33 33 33 39 51 62 74 *** 1988 81 83 78 52 37 25 30 30 36 48 81 78 55 1989 84 84 78 50 40 25 29 29 35 46 68 80 54 1990 88 81 71 50 35 29 32 27 32 52 65 83 54 1991 83 85 81 53 43 31 32 34 42 57 73 82 58 1992 87 85 75 65 50 38 32 35 48 51 58 84 59 1993 *** *** *** *** *** *** 31 29 40 *** 67 81 *** 1994 83 81 69 58 40 34 37 34 46 *** *** *** *** 1995 84 83 81 62 40 31 28 28 *** 58 67 85 *** 1996 83 82 80 49 38 28 28 34 32 56 72 82 55 1997 83 77 78 58 40 28 26 28 35 50 74 84 55 1998 82 82 66 52 36 28 25 26 33 52 70 67 52 1999 82 75 72 48 35 28 27 28 39 45 76 80 53 2000 82 80 73 43 29 28 31 27 30 43 73 80 52 2001 82 81 63 41 33 29 29 29 37 42 64 79 51 2002 79 77 63 56 37 28 28 26 35 41 65 79 51 2003 81 72 62 46 42 26 29 24 33 40 66 75 50 MEAN 81 80 72 50 37 29 28 30 36 50 71 79 54 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 32 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1970 *** *** *** *** *** *** *** 25 20 29 41 43 *** 1971 46 42 29 23 24 20 19 15 23 21 32 39 28 1972 47 36 39 23 22 16 16 16 18 20 29 48 28 1973 41 35 30 21 17 15 15 16 20 21 30 26 24 1974 32 33 29 22 21 20 21 20 24 29 48 42 28 1975 40 46 33 26 22 17 16 20 21 36 44 45 31 1976 50 40 47 31 18 18 *** 18 22 27 32 48 *** 1977 53 39 22 23 18 16 16 16 16 27 38 39 27 1978 43 45 33 21 21 19 17 17 19 22 50 45 29 1979 47 46 40 29 26 17 17 20 23 26 36 *** *** 1980 *** 50 39 24 23 20 20 21 23 26 31 44 *** 1981 *** 46 36 23 23 21 20 24 26 36 36 37 *** 1982 *** *** 45 28 20 19 19 20 25 23 37 56 *** 1983 71 51 48 39 23 19 17 19 22 27 36 45 35 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 52 40 38 25 23 20 20 21 *** *** *** 54 *** 1986 34 54 49 31 20 17 17 19 17 22 38 60 32 1987 *** 36 34 30 21 22 21 20 22 26 29 31 *** 1988 43 45 37 29 21 15 19 19 23 23 34 39 29 1989 53 56 41 24 23 18 19 18 19 20 32 45 31 1990 63 51 43 30 21 19 21 18 18 26 34 51 33 1991 56 56 54 34 25 19 19 19 24 29 35 54 35 1992 71 52 46 39 29 21 19 21 24 26 32 57 36 1993 *** *** *** *** *** *** 18 20 22 *** 30 35 *** 1994 49 39 38 31 21 19 21 20 28 *** *** *** *** 1995 43 48 47 34 21 19 17 18 *** 26 28 58 *** 1996 53 51 50 24 21 18 20 20 18 24 32 41 31 1997 50 45 43 29 20 17 17 17 18 25 39 49 31 1998 56 49 38 26 20 18 17 17 17 23 24 27 28 1999 50 41 39 23 18 17 18 17 20 20 31 30 27 2000 48 44 34 20 16 17 18 17 18 23 38 43 28 2001 43 37 31 20 18 19 18 18 20 21 28 47 27 2002 51 42 24 30 20 16 18 15 18 20 30 48 28 2003 46 37 33 24 20 16 16 17 19 20 31 44 27 MEAN 49 44 38 27 21 18 18 19 21 25 34 44 30 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 33 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 1970 *** *** *** *** *** *** 0 0 0 0 0 0 *** 1971 0 1 2 2 1 0 0 0 0 0 1 3 10 1972 8 5 8 1 2 0 0 0 0 0 0 2 26 1973 2 1 4 1 0 0 0 0 0 0 0 0 8 1974 4 3 4 0 0 0 0 0 0 0 0 2 13 1975 3 0 3 5 1 0 0 0 0 1 1 1 15 1976 1 4 7 3 0 0 *** 0 0 0 1 0 *** 1977 6 0 1 3 1 0 0 0 0 0 1 2 14 1978 5 4 3 2 0 0 0 0 0 0 2 1 17 1979 4 3 2 2 1 0 0 0 0 0 0 6 18 1980 4 3 1 0 0 0 0 0 0 0 0 3 11 1981 2 5 2 2 0 0 0 0 0 2 0 0 13 1982 7 6 8 2 2 0 0 0 0 0 2 5 32 1983 7 1 4 4 0 0 0 0 0 0 0 3 19 1984 *** *** *** *** *** *** *** *** *** *** *** *** *** 1985 1 0 3 1 0 0 0 0 *** *** *** 2 *** 1986 1 6 6 5 0 0 0 0 0 0 2 5 25 1987 *** 1 4 0 0 0 0 0 0 0 0 1 *** 1988 2 5 7 2 0 0 0 0 0 0 1 3 20 1989 5 1 4 0 1 0 0 0 0 0 1 4 16 1990 8 4 2 1 0 0 0 0 0 0 0 1 16 1991 4 3 7 2 0 0 0 0 0 0 0 4 20 1992 5 2 3 4 1 0 0 0 0 0 0 6 21 1993 *** *** *** *** *** *** 0 0 0 *** 1 0 *** 1994 4 0 2 1 0 0 0 0 0 *** *** *** *** 1995 1 3 5 5 0 0 0 0 *** 0 0 6 *** 1996 2 5 12 1 0 0 0 0 0 0 0 1 21 1997 3 0 3 3 1 0 0 0 0 1 0 4 15 1998 5 4 7 4 0 0 0 0 0 0 0 0 20 1999 3 6 5 0 0 0 0 0 0 0 0 0 14 2000 3 3 1 0 0 0 0 0 0 0 3 4 14 2001 1 0 1 0 0 0 0 0 0 0 0 2 4 2002 4 3 1 3 0 0 0 0 0 0 0 2 13 2003 3 2 2 1 0 0 0 0 0 0 0 1 9 MEAN 4 3 4 2 0 0 0 0 0 0 1 2 16 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 34 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. HIGHEST AND LOWEST LIMITS FOR 34 YEARS DURING 1970-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. HIG. DRY 03 10.4 15.2 19.2 23.6 27.4 31.4 31.0 30.4 27.8 20.4 15.8 14.8 1 YEAR - DAY 2002- 8 1999-21 1974-23 1981-18 1971-28 1983-22 1983-26 1970- 2 1976- 1 2001-23 1993- 3 1978-10 LOW. DRY 03 -16.8 -19.0 -12.4 -4.8 1.4 12.2 10.4 10.2 4.4 -2.0 -12.6 -18.0 2 YEAR - DAY 1977-19 1972-12 1986-18 1981- 3 1989- 2 2000-14 2000-21 1996-26 1991-29 1970-25 1976-19 1982- 8 HIG. WET 03 7.0 9.2 11.0 13.6 19.2 23.4 19.2 19.4 18.4 13.4 10.4 9.4 3 YEAR - DAY 2002- 9 1995- 6 1989-15 1988-27 1971-30 1976- 5 1994- 6 1971-18 1991-17 1970- 9 1993-12 1992-21 LOW. WET 03 -18.6 -20.0 -13.8 -7.8 0.0 6.2 5.8 5.8 2.4 -4.0 -14.2 -19.0 4 YEAR - DAY 1977-19 1972-12 1986-18 1981- 3 1989- 2 1998-18 2000-21 1996-26 1972-19 1970-27 1976-17 1982- 8 HIG. DRY 09 19.8 21.4 27.2 32.0 36.4 40.8 41.4 39.4 37.4 34.2 27.2 24.2 5 YEAR - DAY 1994- 3 1985-24 1974-17 2003-28 2000- 8 1988-23 1991- 8 1970- 7 2001- 7 1998- 5 1982- 6 1998-13 LOW. DRY 09 -11.8 -8.2 -4.8 6.4 8.4 22.2 15.2 20.2 12.8 7.8 -2.0 -10.0 6 YEAR - DAY 1996-22 1972-24 1986-16 1994- 5 1989- 1 1981-19 2001-29 1981-31 1991-29 1975-25 1975-29 1982- 8 HIG. WET 09 11.8 12.2 22.2 18.0 27.2 28.0 28.0 25.2 19.8 20.0 19.2 15.6 7 YEAR - DAY 1994- 3 1985-24 1977-17 1982-24 1976-16 1971- 5 2003- 1 1970-23 1973- 2 1970-10 1973-12 1990- 9 LOW. WET 09 -12.4 -10.4 -5.2 2.4 4.6 11.4 10.6 10.5 7.2 4.0 -3.0 -12.0 8 YEAR - DAY 1996-16 1972-24 1986-16 1994- 5 1989- 1 1996-16 1978- 9 1981-30 1974-30 1987-12 1975-29 1982- 8 HIG. DRY 15 15.2 15.2 22.0 30.8 34.0 37.8 38.4 38.0 32.6 30.8 32.0 16.0 9 YEAR - DAY 1994- 5 1995- 5 1971-29 1981-18 2000- 7 1991- 6 1998- 6 1982- 1 1996- 9 1998- 5 1973-11 1971-12 LOW. DRY 15 -12.8 -17.0 -5.4 1.0 3.6 17.2 15.4 15.2 6.8 -1.0 -5.8 -10.8 10 YEAR - DAY 1996-16 1972-11 1986-17 1994- 5 1989- 1 1982-16 1981-30 1981-31 1991-29 1981-29 1976-18 1982-12 HIG. WET 15 9.0 8.8 11.8 16.0 22.0 18.8 25.1 22.0 17.8 16.4 26.0 8.2 11 YEAR - DAY 2002- 8 1995- 5 1971-29 2000-16 1971-29 1977-16 1970-22 1970-26 1987-22 1970- 8 1973-11 1978- 7 LOW. WET 15 -13.2 -18.0 -8.2 -2.0 1.8 9.0 8.8 8.2 3.2 -2.0 -6.8 -12.0 12 YEAR - DAY 1996-16 1972-11 1986-17 1994- 5 1989- 1 1982-16 1981-30 1972-26 1991-29 1981-29 1976-18 1972-27 HIG. MIN. 9.0 13.0 13.5 18.8 24.0 28.5 27.5 26.5 22.0 17.5 12.5 9.5 13 YEAR - DAY 2002- 9 1999-21 1974-23 1971-18 1971-15 1976-12 2003- 3 2003- 1 1983-10 1999-12 1982- 1 1978-12 LOW. MIN. -18.5 -23.0 -12.5 -6.5 -2.5 8.5 8.0 4.5 0.0 -5.0 -14.5 -20.0 14 YEAR - DAY 1977-18 1972-12 1979- 8 1981- 3 1989- 2 1979- 2 1971-18 1972- 8 1974-30 1970-24 1976-20 1982- 9 HIG. MAX. 20.0 22.5 28.5 33.0 37.0 41.5 42.5 40.2 38.0 35.0 29.0 25.5 15 YEAR - DAY 1971- 7 1985-24 1974-17 2003-28 1974-28 1988-23 1991- 8 1970- 6 1996-10 1998- 5 2001-18 1998-13 LOW. MAX. -11.0 -7.0 -3.0 7.0 9.5 22.8 24.5 21.0 13.5 8.5 -1.5 -6.6 16 YEAR - DAY 1996-22 1972-24 1986-17 1994- 5 1989- 1 2000-13 1981-30 1981-31 1991-29 1975-25 1975-29 1982- 8 HIG. PPTN 31.0 34.5 45.0 27.0 26.0 4.5 3.0 0.0 1.0 9.0 15.0 53.0 17 YEAR - DAY 1994-24 1988-18 2003-14 1983- 2 1979- 9 1996-11 1988-10 999-** 2000-25 1997-22 1978-19 1991-16 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) FORM 35 STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. HIGHEST LIMITS OF ABSOLUTE DIFFERENCES FOR 34 YEARS DURING 1970-2003 ELE- JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. MENT --------------------------------------------------------------------------------------------- NO. DRY 09 - DRY 03 24.0 23.0 23.6 22.6 22.2 18.4 18.8 20.2 22.2 22.4 24.4 26.0 18 YEAR - DAY 1978- 8 1971- 4 1977- 1 2000-14 1997- 7 1999- 1 1991- 9 1997-31 1999-10 1998- 5 1999- 9 1987-20 DRY 15 - DRY 09 18.2 13.4 17.0 18.0 14.6 14.4 12.4 12.4 14.6 15.2 15.6 18.0 19 YEAR - DAY 1975- 4 1981-15 1978- 1 1977-25 1977- 2 1975-20 1977-13 1972-26 1999-10 1978-18 1988-10 1981- 5 DRY 15 - DRY 03 20.0 16.0 18.2 17.2 18.0 14.0 16.0 16.0 17.6 21.4 35.0 21.0 20 YEAR - DAY 1971-11 1971-27 1978-30 2000-14 2000- 4 2000-26 2003-13 1987-29 2000-27 1989-16 1973-11 1995- 2 WET 09 - WET 03 22.4 20.0 19.0 15.6 14.0 13.0 15.0 11.6 11.6 14.2 22.2 20.0 21 YEAR - DAY 1977-19 1972-12 1977-17 1981- 3 1976-16 1971- 5 2003- 1 1970-24 2002-10 1970-31 1973-12 1978-26 WET 15 - WET 09 15.2 12.0 16.6 9.8 14.4 12.2 13.9 7.6 9.0 10.0 16.8 13.2 22 YEAR - DAY 1975- 4 1972-12 1977-17 1982-24 1976-16 1971- 5 2003- 1 1972-26 1976- 8 1979-29 1973-11 1973-30 WET 15 - WET 03 16.4 13.8 13.0 10.2 9.6 7.0 12.9 9.0 9.2 11.6 31.2 15.2 23 YEAR - DAY 1974-17 1988- 8 1973-12 1981- 3 2000- 7 1995-26 1970-22 1974-21 2002-10 1970-28 1973-11 1995- 2 DAY BY DAY DRY 03 14.8 15.0 15.0 13.2 14.4 9.2 11.2 11.6 11.4 12.4 13.2 14.4 24 YEAR - DAY 1977-10 1971- 9 1980- 6 1981- 3 2003-10 1988-28 2003-13 1996-26 1991-17 2001-23 2001-20 2002-23 DAY BY DAY WET 03 15.2 11.4 15.0 13.6 7.4 10.8 8.8 7.2 9.8 7.2 11.2 13.0 25 YEAR - DAY 1977-10 1987-12 1980- 6 1981- 3 2003-10 1976- 5 1994- 6 1971-18 1993- 5 2001-23 1993-30 1982- 8 DAY BY DAY DRY 09 16.8 15.6 15.0 16.0 12.2 12.0 14.8 12.2 10.0 13.6 14.8 15.6 26 YEAR - DAY 1999- 5 1978-26 2001-11 2003-18 1997- 7 1988-25 2001-29 1982-18 1999-16 1986-13 2000-18 1970-15 DAY BY DAY WET 09 12.0 11.4 9.6 8.6 12.0 11.2 12.8 7.2 6.2 8.0 10.0 10.6 27 YEAR - DAY 1974- 2 1972-25 1977-17 1971-26 1976-17 1971- 6 2003- 1 1970-27 1974-20 1979-29 1973-12 1970-15 DAY BY DAY DRY 15 14.2 16.0 16.0 14.0 13.8 12.0 12.0 10.6 10.4 13.0 27.8 14.0 28 YEAR - DAY 1974-18 1976-12 1985- 3 1989-30 1997- 7 1994-23 2003- 4 1972-25 1993-16 1989-16 1973-11 1972-27 DAY BY DAY WET 15 15.4 14.2 11.4 7.8 7.6 6.0 11.9 7.0 8.0 7.8 23.8 14.4 29 YEAR - DAY 1974-18 1972-23 1985- 3 1989-30 1971-11 1977- 1 1970-22 1974-22 1999-26 1983-22 1973-11 1972-27 DAY BY DAY MIN. 15.0 13.0 14.0 13.5 13.0 13.0 10.0 10.0 9.5 9.0 12.5 16.7 30 YEAR - DAY 1989- 5 1971-28 1971-22 1976-13 2003-10 1976-13 1971-18 1996-26 2001-14 1980-22 2001-20 1980-13 DAY BY DAY MAX. 16.5 16.0 15.5 16.5 11.5 12.2 10.0 8.0 10.4 11.5 14.5 16.0 31 YEAR - DAY 1999- 5 1978-26 2001-11 2003-18 1997- 7 2000-13 2003- 4 1982-17 1997-14 1978-24 1988- 1 2003-12 IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** 25.6 18.6 14.4 9.5 3.0 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** 17.4 10.0 4.3 -0.6 -5.9 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 32.5 34.8 27.3 24.5 19.5 12.0 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** 17.4 17.3 20.2 20.1 17.9 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** ***** 8.19 4.36 4.35 3.94 2.74 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** 5.49 9.95 4.80 6.51 7.24 4.14 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** 7.50 9.29 4.48 5.50 5.93 3.36 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** 11.0 1.0 -5.0 -5.0 -15.0 ****** DAY ** ** ** ** ** ** ** 15 23 24 16 17 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 35.0 40.2 34.2 30.5 24.5 21.5 ****** DAY ** ** ** ** ** ** 25 6 6 1 5 13 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** 0.0 0.0 0.0 2.5 0.0 1.6 ****** DAY ** ** ** ** ** ** ** ** ** 25 ** 28 MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** 0.0 0.0 0.0 2.5 0.0 2.6 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** 0.0 100.0 NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** 0 0 0 1 0 2 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** 0 0 0 1 0 2 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** 0 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** *** 38 35 55 66 68 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** 17 25 21 30 46 47 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** 28 33 27 36 48 60 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 0 0 2 2 20 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** *** 6 0 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 *** *** *** *** *** *** 14 31 8 2 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 2 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 6 20 28 *** DATE OF START AND END FREEZING START = 23 OCT. END = 31 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.6 3.5 10.3 16.0 23.3 24.6 24.4 23.9 17.4 14.4 9.7 5.2 14.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.1 -4.3 2.2 10.3 16.8 16.9 16.9 16.4 9.0 4.8 1.7 -3.5 6.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.3 11.3 18.4 21.7 29.7 32.2 32.0 31.4 25.8 23.9 17.7 14.0 22.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 17.4 15.6 16.2 11.4 12.9 15.3 15.1 15.0 16.7 19.1 16.0 17.5 15.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.11 2.95 3.73 4.32 6.19 6.24 5.93 5.18 4.54 4.04 4.31 3.11 4.39 MEAN OF MIXING RATIO AT 09 GMT. 3.87 3.79 4.06 4.13 7.69 7.40 6.42 4.91 5.19 4.35 4.43 4.15 5.03 MEAN OF MIXING RATIO AT 15 GMT. 3.03 3.89 3.90 4.09 6.95 6.51 5.95 5.21 4.90 4.26 4.32 3.98 4.75 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.0 -15.0 -7.5 4.0 11.5 11.0 8.0 12.0 3.0 0.0 -5.0 -9.0 -16.0 DAY 28 2 2 4 17 12 18 9 20 24 3 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.0 18.0 28.0 29.0 36.0 37.0 36.0 34.0 34.5 28.5 22.6 20.5 37.0 DAY 7 23 15 23 28 29 9 4 1 4 4 16 24 HOUR MAXIMUM PRECIPITATION IN MM. 1.6 8.0 14.0 11.0 11.0 0.0 0.0 0.0 0.0 0.0 6.0 19.0 19.0 DAY 14 14 31 12 11 ** ** ** ** ** 12 31 MONTHLY TOTAL PRECIPITATION IN MM. 1.6 10.6 27.5 26.5 11.0 0.0 0.0 0.0 0.0 0.0 10.0 41.0 128.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 31.0 29.3 0.0 39.8 NO. OF DAYS WITH PRECIPITATION. 1 3 3 5 1 0 0 0 0 0 3 4 20 NO. OF DAYS PRECIPITATION EQUAL 1 2 3 5 1 0 0 0 0 0 3 4 19 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 1 1 0 0 0 0 0 0 2 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 69 71 63 47 35 30 30 28 39 47 68 67 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 50 44 29 25 25 22 20 16 23 21 32 40 29 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 62 62 42 31 30 25 23 21 29 29 50 60 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 27 17 6 0 0 0 0 0 0 0 3 16 69 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 3 3 3 0 0 0 0 0 9 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 1 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 17 26 28 27 5 0 0 0 103 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 23 15 0 0 0 0 0 0 1 10 28 107 DATE OF START AND END FREEZING START = 24 OCT. END = 28 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1972 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -1.6 -3.0 7.6 14.1 16.8 23.2 23.4 21.4 18.7 15.2 10.3 -0.3 12.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.8 -10.6 1.3 6.0 8.6 14.6 15.6 13.3 9.7 5.5 1.4 -6.9 4.2 AVERAGE OF MAXIMUM TEMPERATURE IN C. 4.6 4.5 14.0 22.3 25.0 31.7 31.1 29.4 27.8 24.8 19.1 6.3 20.1 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.4 15.1 12.7 16.3 16.4 17.1 15.5 16.1 18.1 19.3 17.7 13.2 15.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.19 1.55 4.12 4.05 4.08 4.35 4.50 4.08 4.07 4.00 4.11 2.26 3.61 MEAN OF MIXING RATIO AT 09 GMT. 3.83 3.83 4.08 4.17 4.66 5.24 5.08 4.65 4.63 4.36 4.26 3.93 4.39 MEAN OF MIXING RATIO AT 15 GMT. 2.78 2.70 4.21 4.03 4.20 4.57 4.59 4.47 4.42 3.99 3.96 3.23 3.93 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.5 -23.0 -5.0 1.5 3.0 10.0 10.0 4.5 3.0 2.0 -5.0 -12.5 -23.0 DAY 6 12 5 1 5 7 27 8 18 26 27 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 11.5 15.5 19.5 28.5 32.0 38.0 37.5 34.0 35.0 27.5 26.5 14.0 38.0 DAY 18 19 31 12 30 24 2 1 14 7 5 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 12.0 27.0 23.5 11.0 12.0 0.0 0.0 0.0 0.0 0.0 0.0 9.0 27.0 DAY 11 9 12 3 9 ** ** ** ** ** ** 7 MONTHLY TOTAL PRECIPITATION IN MM. 74.5 57.0 91.0 21.0 20.5 0.0 0.0 0.0 0.0 0.0 0.0 18.0 282.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 78.9 14.7 0.0 6.4 NO. OF DAYS WITH PRECIPITATION. 8 5 8 4 3 0 0 0 0 0 0 3 31 NO. OF DAYS PRECIPITATION EQUAL 8 5 8 4 3 0 0 0 0 0 0 3 31 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 3 1 1 0 0 0 0 0 0 0 10 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 58 44 68 46 34 23 23 26 32 38 59 61 43 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 64 63 39 23 22 16 16 17 18 21 29 60 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 58 58 36 27 19 20 22 24 27 38 67 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 25 1 0 0 0 0 0 0 0 4 26 76 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 1 0 0 0 0 2 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 5 7 0 0 0 0 0 0 0 0 0 4 16 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 4 22 22 15 8 0 0 0 71 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 27 10 0 0 0 0 0 0 0 10 31 107 DATE OF START AND END FREEZING START = 1 NOV. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1973 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.5 6.2 9.2 16.9 21.2 25.9 26.1 24.1 19.5 15.2 7.6 1.9 14.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.0 -1.8 1.0 8.1 12.4 17.8 18.0 16.6 10.4 5.1 -3.4 -10.0 5.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 9.0 14.2 17.4 25.5 30.1 34.1 34.1 31.5 28.5 25.3 18.4 13.7 23.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 17.0 16.0 16.4 17.4 17.7 16.4 16.1 14.9 18.1 20.2 21.8 23.7 18.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.16 3.43 3.81 4.07 4.09 4.43 4.30 4.64 4.57 4.07 3.04 1.12 3.64 MEAN OF MIXING RATIO AT 09 GMT. 4.04 4.06 3.98 4.61 5.01 5.51 5.76 5.37 5.34 4.59 4.58 4.06 4.74 MEAN OF MIXING RATIO AT 15 GMT. 2.87 4.08 4.09 4.22 4.45 4.72 4.78 5.12 4.79 4.47 4.73 3.75 4.34 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.0 -11.5 -11.5 2.0 8.5 13.0 12.0 8.5 3.0 -2.0 -10.5 -14.0 -16.0 DAY 3 7 10 15 1 8 6 9 30 25 8 26 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 20.5 27.5 32.0 36.0 38.0 40.0 35.0 35.0 31.5 28.0 17.5 40.0 DAY 28 21 21 29 25 12 11 2 10 11 17 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 5.0 7.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 20.0 DAY 15 6 18 5 ** ** ** ** ** ** ** 27 MONTHLY TOTAL PRECIPITATION IN MM. 27.0 12.0 25.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 70.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 90.8 7.1 0.0 2.1 NO. OF DAYS WITH PRECIPITATION. 2 3 4 1 0 0 0 0 0 0 0 1 11 NO. OF DAYS PRECIPITATION EQUAL 2 3 4 1 0 0 0 0 0 0 0 1 11 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. 55 65 62 37 27 22 22 25 33 42 63 37 41 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 38 30 21 17 15 16 17 20 21 31 38 26 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 58 58 48 28 21 18 17 21 26 30 48 64 36 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 8 5 0 0 0 0 0 0 0 17 31 85 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 4 4 0 0 0 0 12 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 30 29 22 9 3 0 0 112 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 20 11 0 0 0 0 0 0 4 21 31 116 DATE OF START AND END FREEZING START = 2 OCT. END = 18 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1974 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -2.1 1.2 11.2 15.7 21.2 24.4 24.9 21.9 16.3 10.4 5.7 3.1 12.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -11.0 -6.6 4.4 7.7 12.3 16.2 17.6 13.7 7.7 1.2 0.9 -4.6 5.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.8 9.0 18.1 23.6 30.1 32.7 32.2 30.1 24.9 19.6 10.5 10.7 20.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 17.8 15.6 13.7 15.9 17.8 16.5 14.6 16.4 17.2 18.4 9.6 15.3 15.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 0.96 2.09 3.70 4.09 5.34 6.15 5.79 5.58 4.51 4.28 4.23 2.79 4.13 MEAN OF MIXING RATIO AT 09 GMT. 4.03 3.69 4.23 4.38 6.26 7.04 7.04 6.02 5.34 4.60 4.29 4.17 5.09 MEAN OF MIXING RATIO AT 15 GMT. 2.32 3.21 4.22 4.27 5.57 6.37 6.00 6.12 4.85 4.33 4.16 3.72 4.59 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.0 -20.0 -7.5 1.0 8.0 13.0 15.0 11.0 0.0 -4.5 -4.5 -11.5 -20.0 DAY 2 3 10 11 6 1 11 29 30 31 14 28 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.5 14.5 28.5 29.0 37.0 37.0 35.0 34.0 32.5 23.5 14.5 16.5 37.0 DAY 13 18 17 30 28 26 2 14 6 1 4 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 30.0 13.0 22.0 4.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.0 30.0 DAY 17 17 31 5 ** ** ** ** ** ** ** 15 MONTHLY TOTAL PRECIPITATION IN MM. 63.0 47.5 56.0 9.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20.0 195.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 85.2 4.6 0.0 10.2 NO. OF DAYS WITH PRECIPITATION. 6 8 4 2 0 0 0 0 0 0 0 3 23 NO. OF DAYS PRECIPITATION EQUAL 6 8 4 2 0 0 0 0 0 0 0 3 23 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 3 0 0 0 0 0 0 0 0 1 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 36 54 49 42 31 29 29 32 38 63 76 65 45 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 60 47 31 22 21 20 21 20 24 29 48 46 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 53 61 51 32 27 25 24 28 34 42 79 78 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 29 17 4 0 0 0 0 0 0 1 2 19 72 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 4 0 0 0 0 0 0 0 0 0 0 6 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 18 26 31 16 5 0 0 0 96 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 31 22 5 0 0 0 0 0 1 11 7 30 107 DATE OF START AND END FREEZING START = 30 SEP. END = 11 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1975 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.3 4.6 9.1 15.2 21.5 27.4 27.9 21.7 21.3 11.2 4.7 -0.7 13.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.0 -1.6 2.0 8.5 13.6 19.9 20.8 15.1 13.8 4.6 -1.0 -7.3 6.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 7.6 10.8 16.1 21.9 29.4 34.9 35.1 28.3 28.8 17.8 10.3 6.0 20.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.6 12.4 14.1 13.4 15.8 15.0 14.3 13.2 15.0 13.2 11.3 13.3 13.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 1.72 3.58 3.97 4.54 5.82 5.66 5.26 5.52 5.31 4.62 3.87 1.67 4.29 MEAN OF MIXING RATIO AT 09 GMT. 4.16 4.19 4.16 4.85 6.37 6.86 6.91 5.49 5.89 4.90 3.99 4.39 5.18 MEAN OF MIXING RATIO AT 15 GMT. 3.05 3.95 4.34 4.60 6.07 5.70 5.47 5.39 5.45 4.72 4.32 3.47 4.71 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -5.5 -8.5 5.0 10.5 17.0 16.5 10.5 11.5 -3.0 -8.5 -14.5 -14.5 DAY 16 4 8 1 13 7 5 29 3 26 30 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.5 15.5 21.0 29.0 35.5 36.8 37.5 35.0 33.5 25.5 15.5 12.0 37.5 DAY 6 28 24 30 28 20 21 3 5 1 15 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 4.0 17.0 18.0 10.0 0.0 0.0 0.0 0.0 6.0 6.0 12.0 18.0 DAY 14 12 4 22 13 ** ** ** ** 15 30 1 MONTHLY TOTAL PRECIPITATION IN MM. 32.0 10.5 37.0 63.0 10.0 0.0 0.0 0.0 0.0 6.0 6.0 16.0 180.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 44.0 40.4 0.0 15.5 NO. OF DAYS WITH PRECIPITATION. 8 3 3 6 1 0 0 0 0 1 1 2 25 NO. OF DAYS PRECIPITATION EQUAL 8 3 3 6 1 0 0 0 0 1 1 2 25 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 2 4 1 0 0 0 0 0 0 1 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 46 75 61 40 31 25 21 30 32 61 77 49 46 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 58 46 33 27 23 17 17 21 21 37 47 67 35 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 78 67 38 30 23 22 28 31 59 85 75 51 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 25 7 6 0 0 0 0 0 0 0 5 30 73 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 11 19 3 0 0 0 0 33 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 1 0 0 0 0 0 0 0 0 0 1 0 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 11 30 31 8 11 0 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. 29 17 8 0 0 0 0 0 0 5 15 30 104 DATE OF START AND END FREEZING START = 24 OCT. END = 13 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1976 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 1.9 0.7 2.7 11.6 22.7 25.1 ***** 25.6 20.7 16.3 4.6 1.8 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -4.9 -6.3 -3.9 5.4 14.1 18.4 ***** 17.5 13.2 8.5 -4.7 -6.0 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.7 7.7 9.2 17.9 31.2 31.8 ***** 33.8 28.2 24.2 13.9 9.7 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.6 14.0 13.1 12.5 17.1 13.4 ***** 16.3 15.0 15.7 18.6 15.7 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.29 2.09 2.57 4.29 5.40 6.67 ***** 5.87 5.77 4.93 2.35 2.34 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.35 4.21 4.30 4.41 6.51 5.97 ***** 6.51 6.19 5.61 4.54 4.34 ***** MEAN OF MIXING RATIO AT 15 GMT. 3.75 3.00 3.86 4.58 5.58 6.07 ***** 6.22 5.80 5.06 3.63 2.87 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.5 -13.5 -6.5 -1.0 9.5 12.5 ***** 14.5 8.5 3.5 -14.5 -14.5 ****** DAY 11 18 3 12 5 6 ** 6 23 22 20 2 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 15.5 12.5 29.5 36.5 37.0 ***** 37.5 36.0 28.5 24.5 14.5 ****** DAY 30 10 11 29 16 1 ** 1 20 1 2 18 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 24.0 27.0 17.0 0.0 0.0 ***** 0.0 0.0 0.0 7.0 4.0 ****** DAY 11 11 17 5 ** ** ** ** ** ** 3 1 MONTHLY TOTAL PRECIPITATION IN MM. 13.0 57.0 101.0 36.0 0.0 0.0 ***** 0.0 0.0 0.0 7.0 10.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 76.3 16.1 0.0 7.6 NO. OF DAYS WITH PRECIPITATION. 4 6 9 3 0 0 *** 0 0 0 1 3 *** NO. OF DAYS PRECIPITATION EQUAL 4 6 9 3 0 0 *** 0 0 0 1 3 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 3 5 2 0 0 *** 0 0 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 62 56 68 54 28 30 *** 24 31 44 51 70 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 59 53 31 20 18 *** 18 23 27 44 52 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 80 66 80 63 27 26 *** 27 34 43 68 74 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 19 19 13 0 0 0 *** 0 0 0 17 21 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 7 *** 1 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 *** 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 23 23 *** 30 6 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 *** 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 25 31 1 0 0 *** 0 0 0 22 31 *** DATE OF START AND END FREEZING START = 9 NOV. END = 12 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. -2.4 5.0 15.4 16.9 22.0 25.3 25.5 26.8 22.9 16.9 8.8 5.1 15.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -8.4 -4.1 5.8 9.2 12.0 15.2 16.7 17.9 13.1 8.3 0.4 -3.6 6.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 3.6 14.1 25.1 24.7 32.0 35.3 34.3 35.7 32.7 25.6 17.2 13.8 24.5 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.0 18.2 19.3 15.5 20.0 20.1 17.6 17.8 19.6 17.3 16.8 17.4 17.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.07 2.97 4.10 4.05 4.84 5.40 5.50 5.14 4.91 4.89 4.12 3.02 4.25 MEAN OF MIXING RATIO AT 09 GMT. 3.93 4.14 5.10 4.72 5.97 6.55 6.21 6.58 5.94 5.71 5.17 4.53 5.38 MEAN OF MIXING RATIO AT 15 GMT. 2.95 4.39 4.16 4.12 5.30 6.02 6.22 5.60 4.95 4.63 4.69 3.98 4.75 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.5 -8.5 -3.5 3.5 7.6 11.5 13.5 12.5 7.5 4.5 -6.5 -13.0 -18.5 DAY 18 4 1 12 5 5 8 27 30 29 27 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 8.5 20.5 28.5 32.5 36.5 37.5 38.5 39.5 36.5 32.5 23.5 20.5 39.5 DAY 2 17 19 28 24 17 13 14 1 6 12 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 4.5 15.0 20.0 12.0 0.0 0.0 0.0 0.0 4.0 10.0 20.0 20.0 DAY 22 26 29 2 27 ** ** ** ** 24 17 22 MONTHLY TOTAL PRECIPITATION IN MM. 54.0 4.5 17.0 43.0 14.0 0.0 0.0 0.0 0.0 7.0 10.0 28.0 177.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 42.5 32.1 0.0 25.4 NO. OF DAYS WITH PRECIPITATION. 10 1 2 6 2 0 0 0 0 2 1 3 27 NO. OF DAYS PRECIPITATION EQUAL 10 1 2 6 2 0 0 0 0 2 1 3 27 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 1 2 1 0 0 0 0 0 1 1 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 60 78 56 39 30 24 23 20 24 48 73 71 46 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 72 39 23 23 18 16 17 16 17 27 38 43 29 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 70 41 38 28 23 24 21 24 36 63 74 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 17 0 0 0 0 0 0 0 0 4 12 53 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 5 0 0 0 0 5 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 8 0 0 0 0 0 0 0 0 0 0 0 8 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 8 24 30 30 31 27 5 0 0 155 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 25 3 0 0 0 0 0 0 0 16 23 97 DATE OF START AND END FREEZING START = 3 NOV. END = 10 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.3 4.8 8.3 16.6 21.2 24.4 24.6 22.5 19.0 14.6 7.3 6.8 14.4 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.0 -2.2 0.3 7.9 12.9 16.2 18.0 15.1 9.6 5.2 0.2 -0.8 6.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.7 11.8 16.3 25.3 29.3 32.5 31.3 29.8 28.4 23.9 14.1 14.4 22.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.7 14.0 16.0 17.4 16.4 16.3 13.3 14.7 18.8 18.7 13.9 15.2 15.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.35 3.25 3.96 4.19 5.15 5.78 5.01 4.31 4.08 4.04 4.27 3.34 4.15 MEAN OF MIXING RATIO AT 09 GMT. 4.58 4.33 4.23 4.51 6.03 6.37 5.52 4.99 5.00 4.53 5.85 5.79 5.14 MEAN OF MIXING RATIO AT 15 GMT. 3.64 3.98 4.19 4.36 5.25 5.66 4.85 4.49 4.26 4.07 4.77 4.23 4.48 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -10.8 -6.5 -2.5 7.5 9.5 11.5 10.0 5.0 2.0 -6.5 -8.5 -12.5 DAY 14 7 21 16 3 3 9 13 24 24 6 25 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.8 17.5 24.5 29.5 33.5 37.5 37.5 33.5 33.5 28.5 25.5 23.5 37.5 DAY 5 18 30 9 21 21 2 17 9 20 2 12 24 HOUR MAXIMUM PRECIPITATION IN MM. 23.0 27.0 12.0 11.5 0.0 0.0 0.0 0.0 0.0 0.0 15.0 8.0 27.0 DAY 12 26 8 1 ** ** ** ** ** ** 19 29 MONTHLY TOTAL PRECIPITATION IN MM. 70.0 66.0 27.0 16.5 0.0 0.0 0.0 0.0 0.0 0.0 24.5 14.0 218.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 74.8 7.6 0.0 17.7 NO. OF DAYS WITH PRECIPITATION. 5 5 4 2 0 0 0 0 0 0 3 3 22 NO. OF DAYS PRECIPITATION EQUAL 5 5 4 2 0 0 0 0 0 0 3 3 22 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 2 1 1 0 0 0 0 0 0 1 0 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 65 74 74 43 34 29 24 24 29 46 73 59 48 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 48 33 21 21 19 18 17 20 22 53 52 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 72 60 30 26 23 19 21 24 36 70 63 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 24 10 8 0 0 0 0 0 0 0 6 12 60 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 3 0 0 0 0 0 8 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 17 23 20 17 12 0 0 0 89 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 19 14 2 0 0 0 0 0 0 14 18 93 DATE OF START AND END FREEZING START = 4 NOV. END = 16 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.1 5.2 7.3 16.2 16.6 23.3 25.5 21.7 18.4 16.7 8.5 3.1 13.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.2 -2.6 -0.0 8.5 9.1 15.3 18.7 14.1 9.6 7.3 -0.0 -5.1 6.1 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.3 12.7 14.6 23.9 24.1 31.3 32.4 29.4 27.3 26.1 17.0 10.7 21.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.5 15.3 14.6 15.4 15.0 16.0 13.7 15.3 17.7 18.8 17.0 15.8 15.6 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.12 3.59 4.39 4.91 5.33 5.17 4.96 5.23 5.01 5.05 4.05 ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 4.48 4.87 5.22 5.40 5.47 5.50 5.75 5.76 5.86 6.36 4.83 4.83 5.36 MEAN OF MIXING RATIO AT 15 GMT. 4.08 4.34 4.86 5.11 4.98 5.06 5.30 5.53 5.15 5.05 4.65 3.81 4.83 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.5 -8.5 -12.5 1.0 4.5 8.5 13.5 8.0 4.0 3.5 -7.5 -13.5 -13.5 DAY 28 1 8 1 2 2 28 22 27 11 16 23 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 17.5 17.0 22.5 32.0 31.0 37.5 38.0 35.0 33.5 31.5 24.5 16.5 38.0 DAY 4 17 28 25 23 25 7 1 14 6 2 16 24 HOUR MAXIMUM PRECIPITATION IN MM. 25.0 16.0 9.5 7.0 26.0 0.0 0.0 0.0 0.0 4.0 0.0 19.0 26.0 DAY 24 13 12 29 9 ** ** ** ** 29 ** 22 MONTHLY TOTAL PRECIPITATION IN MM. 65.5 43.0 20.5 17.5 33.0 0.0 0.0 0.0 0.0 4.0 0.0 71.0 254.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.7 19.8 0.0 29.5 NO. OF DAYS WITH PRECIPITATION. 5 5 4 5 3 0 0 0 0 1 0 6 29 NO. OF DAYS PRECIPITATION EQUAL 5 5 4 5 3 0 0 0 0 1 0 6 29 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 2 0 0 1 0 0 0 0 0 0 4 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 67 77 70 46 44 28 23 31 39 54 68 *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 53 48 46 29 28 17 17 20 23 27 36 56 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 67 72 66 42 35 22 18 25 31 38 61 74 46 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 7 7 6 0 0 0 0 0 0 0 8 16 44 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 11 0 0 0 0 0 13 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 7 2 17 25 10 9 2 0 0 72 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. 21 20 15 0 0 0 0 0 0 0 13 26 95 DATE OF START AND END FREEZING START = 7 NOV. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 0.2 3.4 9.8 19.4 20.8 23.2 24.2 22.3 18.7 15.5 11.3 5.4 14.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.3 -3.9 1.8 11.6 13.5 14.6 16.7 14.1 9.3 6.0 2.1 -3.2 6.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.7 10.6 17.9 27.3 28.2 31.8 31.8 30.0 28.1 25.1 20.4 14.0 22.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.0 14.5 16.1 15.7 14.7 17.2 15.1 15.9 18.8 19.1 18.3 17.2 16.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.52 3.74 4.38 5.21 5.34 5.31 5.64 5.61 4.77 4.45 4.42 3.48 4.57 MEAN OF MIXING RATIO AT 09 GMT. 4.39 4.90 5.33 5.94 6.12 6.39 6.57 6.25 5.90 5.42 5.06 4.94 5.60 MEAN OF MIXING RATIO AT 15 GMT. 3.76 4.55 4.82 5.28 5.36 5.57 6.08 5.52 5.00 4.74 4.63 4.43 4.98 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.5 -13.5 -6.5 5.5 8.5 10.0 11.5 8.0 7.5 -1.5 -3.5 -14.5 -14.5 DAY 3 4 6 1 30 26 21 31 13 23 26 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 17.5 24.5 32.5 33.5 41.0 33.5 34.0 32.0 34.6 25.5 22.5 41.0 DAY 30 24 30 21 1 13 4 20 7 6 10 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 6.0 15.5 4.0 0.0 0.0 0.0 0.0 0.0 1.0 0.0 10.0 16.0 DAY 25 19 20 5 ** ** ** ** ** 28 ** 13 MONTHLY TOTAL PRECIPITATION IN MM. 52.0 24.0 36.5 4.0 0.0 0.0 0.0 0.0 0.0 1.0 0.0 24.0 141.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 79.5 2.8 0.0 17.7 NO. OF DAYS WITH PRECIPITATION. 5 6 10 1 0 0 0 0 0 1 0 3 26 NO. OF DAYS PRECIPITATION EQUAL 5 6 10 1 0 0 0 0 0 1 0 3 26 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 0 1 0 0 0 0 0 0 0 0 1 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 60 68 65 38 34 31 27 32 37 52 75 74 49 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 54 41 24 23 20 20 21 23 26 31 46 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 71 58 33 33 25 24 27 31 39 50 75 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 12 5 0 0 0 0 0 0 0 0 8 45 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 2 0 0 0 0 0 5 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 4 3 0 0 0 0 0 0 0 0 0 0 7 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 6 12 17 28 18 5 7 0 0 93 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 0 0 0 0 0 0 2 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 24 21 7 0 0 0 0 0 0 4 7 26 89 DATE OF START AND END FREEZING START = 22 OCT. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. 3.2 4.8 9.9 18.3 20.6 23.5 25.1 20.3 15.8 10.7 7.8 6.7 13.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.3 -2.5 1.5 9.6 13.5 15.6 18.5 13.4 7.0 3.1 -1.3 -3.1 5.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.6 12.1 18.3 27.0 27.7 31.5 31.9 27.3 24.5 18.2 16.9 16.5 21.9 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.9 14.6 16.8 17.4 14.2 15.9 13.4 13.9 17.5 15.1 18.2 19.6 16.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 3.74 4.35 5.06 5.24 5.55 5.92 5.38 4.83 4.72 3.80 3.12 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.82 4.79 5.23 5.84 6.12 6.67 6.88 6.01 5.48 5.25 4.77 4.87 5.56 MEAN OF MIXING RATIO AT 15 GMT. 3.94 4.17 4.99 5.17 5.35 5.97 6.11 5.48 5.05 4.63 4.63 4.47 5.00 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.5 -9.0 -4.5 -6.5 9.5 10.5 13.0 6.5 3.5 -3.5 -4.5 -6.5 -9.5 DAY 16 5 6 3 17 18 25 31 27 29 11 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.0 20.5 24.0 31.5 33.5 39.5 37.0 32.5 29.5 28.5 21.5 21.5 39.5 DAY 19 10 26 17 8 10 2 16 9 14 25 5 24 HOUR MAXIMUM PRECIPITATION IN MM. 29.5 34.0 10.0 13.0 0.0 0.0 0.0 0.0 0.0 8.0 0.0 3.0 34.0 DAY 27 26 13 30 ** ** ** ** ** 18 ** 27 MONTHLY TOTAL PRECIPITATION IN MM. 47.0 80.5 24.0 21.0 0.0 0.0 0.0 0.0 0.0 15.0 0.0 3.0 190.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 79.5 11.0 0.0 9.4 NO. OF DAYS WITH PRECIPITATION. 4 5 5 3 0 0 0 0 0 2 0 1 20 NO. OF DAYS PRECIPITATION EQUAL 4 5 5 3 0 0 0 0 0 2 0 1 20 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 1 1 0 0 0 0 0 0 0 0 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 72 69 39 33 30 28 36 51 67 78 71 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 55 50 36 24 23 21 20 24 26 37 36 38 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 73 58 34 34 27 25 30 35 53 72 76 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 11 2 2 0 0 0 0 0 0 1 7 43 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 4 0 0 0 0 0 6 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 9 8 17 20 5 0 0 0 0 59 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 20 11 2 0 0 0 0 0 6 22 31 119 DATE OF START AND END FREEZING START = 26 OCT. END = 4 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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.***** ***** 6.9 15.9 21.9 24.3 24.3 23.9 18.2 19.2 10.4 -1.2 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** 0.6 8.6 12.8 16.5 16.0 16.4 11.3 11.9 2.9 -7.5 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.4 ***** 13.4 23.3 31.0 32.0 32.6 31.4 25.1 26.5 17.9 5.3 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** 12.8 14.7 18.2 15.5 16.6 15.0 13.8 14.6 15.0 12.8 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** 4.17 4.59 5.42 5.28 5.37 5.07 4.91 4.77 4.27 2.47 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.57 4.23 4.77 5.68 6.33 6.28 6.57 6.38 5.44 5.46 5.17 4.11 5.42 MEAN OF MIXING RATIO AT 15 GMT. 3.90 3.73 4.54 4.87 5.52 5.50 5.76 5.40 4.97 4.92 4.92 3.55 4.80 ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** -7.5 -1.5 6.5 12.5 11.0 10.5 4.5 6.5 -5.0 -20.0 ****** DAY ** ** 9 4 26 16 13 24 26 1 30 9 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.5 ***** 18.5 32.0 35.5 36.0 38.5 39.0 29.0 29.0 28.0 11.0 ****** DAY 17 ** 24 29 13 4 31 1 4 15 6 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 25.0 23.0 8.0 10.0 0.0 0.0 0.0 0.0 0.0 11.0 18.0 25.0 DAY 4 18 4 21 6 ** ** ** ** ** 3 7 MONTHLY TOTAL PRECIPITATION IN MM. 86.5 95.0 101.0 15.0 15.0 0.0 0.0 0.0 0.0 0.0 22.0 53.0 387.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 72.9 7.7 0.0 19.4 NO. OF DAYS WITH PRECIPITATION. 10 11 10 2 2 0 0 0 0 0 3 5 43 NO. OF DAYS PRECIPITATION EQUAL 10 11 10 2 2 0 0 0 0 0 3 5 43 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 4 3 5 0 1 0 0 0 0 0 1 3 17 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** 72 46 31 27 26 27 39 36 66 69 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 61 68 46 29 20 19 19 20 25 23 37 65 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 78 66 37 25 24 21 25 32 30 55 76 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** 4 0 0 0 0 0 0 0 4 16 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** 0 0 0 0 0 3 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 *** 0 0 0 0 0 0 0 0 0 6 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 2 22 26 28 17 0 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 *** 0 0 0 0 0 0 0 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** 8 2 0 0 0 0 0 0 11 19 *** DATE OF START AND END FREEZING START = 17 NOV. END = 4 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1983 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C.***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -6.0 -5.3 -2.4 6.4 12.0 16.2 18.7 18.3 13.0 4.5 0.4 -4.7 5.9 AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.79 2.84 3.58 5.17 5.67 5.99 5.59 5.55 5.47 4.75 4.29 2.81 4.54 MEAN OF MIXING RATIO AT 09 GMT. 4.61 4.67 4.71 5.44 6.45 7.25 6.90 6.76 6.59 5.56 5.06 4.75 5.73 MEAN OF MIXING RATIO AT 15 GMT. 3.47 4.62 4.54 5.04 5.81 6.09 6.02 6.01 5.69 5.06 4.72 4.01 5.09 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -16.0 -9.5 -8.5 1.5 3.5 10.0 11.5 12.0 5.5 -2.0 -4.0 -10.5 -16.0 DAY 30 1 9 16 1 2 2 29 24 24 29 22 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 13.0 10.0 15.5 27.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9.0 27.0 DAY 23 18 13 2 ** ** ** ** ** ** ** 14 MONTHLY TOTAL PRECIPITATION IN MM. 60.0 10.0 39.5 75.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 30.0 215.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 50.9 35.1 0.0 14.0 NO. OF DAYS WITH PRECIPITATION. 8 1 5 7 0 0 0 0 0 0 0 6 27 NO. OF DAYS PRECIPITATION EQUAL 8 1 5 7 0 0 0 0 0 0 0 6 27 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 3 1 2 3 0 0 0 0 0 0 0 0 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 81 78 77 59 36 27 25 26 33 62 79 73 55 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 77 51 49 39 23 19 17 19 22 27 36 52 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 84 79 69 52 28 22 21 24 27 40 61 73 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 21 23 13 0 0 0 0 0 0 0 1 14 72 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 7 6 1 0 0 0 15 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. 29 28 23 0 0 0 0 0 0 5 11 28 124 DATE OF START AND END FREEZING START = 22 OCT. END = 27 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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 SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.9 7.2 8.7 17.7 19.9 25.3 25.5 23.9 ***** ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -2.8 -0.6 0.8 9.6 11.8 17.4 18.1 16.0 ***** ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.5 15.0 17.1 25.8 28.0 33.3 32.9 31.8 ***** ***** ***** 10.4 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.3 15.6 16.4 16.2 16.2 15.9 14.8 15.8 ***** ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.47 3.81 4.15 4.57 5.15 5.79 5.93 5.59 ***** ***** ***** 3.70 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.63 4.63 5.00 5.51 6.01 6.96 6.71 6.72 ***** ***** ***** 4.62 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.03 4.45 4.48 4.72 5.28 6.08 6.32 5.89 ***** ***** ***** 3.77 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -7.5 -7.5 5.5 5.5 12.5 15.0 11.5 ***** ***** ***** ***** ****** DAY 1 23 4 6 13 3 22 30 ** ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.5 22.5 26.5 32.5 34.0 39.0 35.5 37.5 ***** ***** ***** 19.0 ****** DAY 23 24 28 28 5 8 5 6 ** ** ** 4 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 2.0 11.0 7.0 0.0 0.0 0.0 0.0 ***** ***** ***** 10.0 ****** DAY 18 1 20 26 ** ** ** ** ** ** ** 6 MONTHLY TOTAL PRECIPITATION IN MM. 21.5 3.5 32.5 11.0 0.0 0.0 0.0 0.0 ***** ***** ***** 21.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 64.2 12.3 0.0 23.5 NO. OF DAYS WITH PRECIPITATION. 4 2 5 3 0 0 0 0 *** *** *** 6 *** NO. OF DAYS PRECIPITATION EQUAL 4 2 5 3 0 0 0 0 *** *** *** 6 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 2 0 0 0 0 0 *** *** *** 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 74 70 42 35 25 28 30 *** *** *** 76 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 40 38 25 23 20 20 21 *** *** *** 56 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 71 60 35 30 23 24 24 *** *** *** 74 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 12 8 6 0 0 0 0 0 *** *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 2 1 *** *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** *** *** 1 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 5 10 26 31 23 *** *** *** 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** *** *** 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** *** *** 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 24 14 11 0 0 0 0 0 *** *** *** *** *** DATE OF START AND END FREEZING START = 1 JAN. END = 15 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. 2.0 3.1 4.9 14.1 20.4 24.0 24.0 21.6 19.4 17.3 9.1 2.2 13.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -6.8 -2.9 -0.9 7.7 12.7 16.6 17.1 14.9 11.2 8.6 1.6 -3.3 6.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.1 9.4 11.0 21.0 28.0 31.6 30.9 28.3 27.5 25.9 16.6 7.6 20.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 17.9 12.3 11.9 13.3 15.3 15.0 13.8 13.4 16.3 17.3 15.0 10.9 14.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.33 3.46 3.86 6.08 5.50 4.99 5.30 5.19 4.19 4.40 4.17 3.75 4.43 MEAN OF MIXING RATIO AT 09 GMT. 2.96 4.16 4.47 5.51 5.33 5.53 5.48 5.34 4.61 5.25 4.73 4.78 4.85 MEAN OF MIXING RATIO AT 15 GMT. 2.95 4.35 4.41 5.53 5.16 4.90 4.94 4.83 4.34 4.60 4.53 3.95 4.54 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -7.0 -12.5 4.0 7.5 11.5 12.5 11.0 8.2 0.0 -6.5 -13.0 -13.0 DAY 25 3 17 26 21 28 22 30 23 17 14 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 17.5 20.0 28.0 33.0 36.5 34.0 32.0 33.0 32.0 24.5 14.0 36.5 DAY 6 24 5 18 24 17 26 1 26 5 1 27 24 HOUR MAXIMUM PRECIPITATION IN MM. 6.0 15.5 36.0 11.0 1.0 0.0 0.0 0.0 0.0 2.5 9.5 38.0 38.0 DAY 21 16 26 7 2 ** ** ** ** 25 20 3 MONTHLY TOTAL PRECIPITATION IN MM. 11.5 63.0 112.5 61.0 1.0 0.0 0.0 0.0 0.0 2.5 22.5 88.0 362.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 51.7 17.1 0.0 31.2 NO. OF DAYS WITH PRECIPITATION. 3 11 10 11 1 0 0 0 0 1 4 6 47 NO. OF DAYS PRECIPITATION EQUAL 3 11 10 11 1 0 0 0 0 1 4 6 47 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 4 3 0 0 0 0 0 0 0 3 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 64 79 75 64 37 25 26 32 31 44 70 80 52 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 35 55 54 31 21 17 17 20 17 24 38 65 33 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 60 77 65 43 28 20 20 22 24 30 56 80 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 16 6 4 0 0 0 0 0 0 0 4 9 39 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 2 1 0 0 0 0 6 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 1 0 0 0 0 0 0 0 0 2 3 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 9 21 25 5 4 9 0 0 73 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 19 15 15 0 0 0 0 0 0 1 9 22 81 DATE OF START AND END FREEZING START = 17 OCT. END = 31 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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.***** 5.9 10.0 14.7 19.6 22.5 24.3 25.8 22.3 14.8 10.5 6.5 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** -3.2 2.8 6.6 10.6 14.8 15.9 18.1 13.9 6.4 0.6 -4.0 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** 15.2 17.1 23.0 28.6 30.3 32.7 33.5 30.7 23.4 20.5 16.7 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** 18.4 14.3 16.4 18.0 15.5 16.8 15.4 16.8 17.0 19.9 20.7 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** 3.49 4.58 4.99 5.71 6.43 6.27 6.50 6.13 4.42 3.85 3.15 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** 4.22 4.42 5.45 5.47 6.65 7.38 7.29 6.84 5.04 4.87 4.00 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** 4.21 4.46 4.88 5.09 6.13 6.70 6.63 6.34 4.73 4.26 3.82 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** -7.5 -3.0 -1.2 2.5 11.5 11.5 14.0 7.0 -3.5 -11.0 -12.5 ****** DAY ** 13 21 2 8 16 1 29 28 12 30 2 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** 22.0 23.0 32.0 35.0 38.0 39.5 38.0 36.0 32.0 27.0 23.5 ****** DAY ** 4 1 25 27 5 9 6 22 7 6 20 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** 5.0 21.0 4.0 1.5 0.0 0.0 0.0 0.0 4.0 0.0 11.0 ****** DAY ** 21 13 5 29 ** ** ** ** 29 ** 29 MONTHLY TOTAL PRECIPITATION IN MM. ***** 11.0 46.5 7.0 5.0 0.0 0.0 0.0 0.0 4.0 0.0 11.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 68.0 14.2 0.0 17.8 NO. OF DAYS WITH PRECIPITATION. *** 3 6 2 4 0 0 0 0 1 0 1 *** NO. OF DAYS PRECIPITATION EQUAL *** 3 6 2 4 0 0 0 0 1 0 1 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** 0 2 0 0 0 0 0 0 0 0 1 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** 77 65 53 39 33 31 33 39 50 60 69 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** 37 34 30 21 22 21 20 22 26 29 32 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** 68 59 44 28 27 26 24 28 38 44 51 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 11 0 0 0 0 0 0 0 0 4 17 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 2 0 0 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 0 0 0 0 0 0 0 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** 0 0 4 13 16 25 31 18 6 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. *** 22 6 2 0 0 0 0 0 1 13 23 *** DATE OF START AND END FREEZING START = 12 OCT. END = 9 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. 4.0 4.5 8.9 15.6 21.4 26.0 27.5 23.6 19.9 15.6 4.5 5.7 14.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.1 -2.6 0.8 8.0 12.1 17.2 20.1 15.8 11.9 5.6 -4.6 -2.7 6.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.1 11.7 16.9 23.2 30.7 34.8 34.9 31.4 28.0 25.6 13.6 14.2 23.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.2 14.3 16.1 15.2 18.6 17.5 14.8 15.6 16.1 20.0 18.2 16.9 16.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.20 3.67 4.56 5.28 5.96 5.50 7.00 5.13 4.86 4.46 2.99 3.50 4.68 MEAN OF MIXING RATIO AT 09 GMT. 3.91 4.28 4.91 5.94 6.54 5.81 7.40 6.29 5.94 5.25 3.68 4.16 5.34 MEAN OF MIXING RATIO AT 15 GMT. 4.18 4.36 4.70 5.32 5.89 5.66 6.69 5.72 5.30 4.74 4.33 4.10 5.08 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.5 -13.5 -4.0 -3.0 7.5 12.5 14.0 12.5 4.0 2.5 -7.0 -7.0 -13.5 DAY 21 8 18 5 7 1 30 15 28 3 22 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 19.0 23.5 30.5 36.5 41.5 40.0 35.0 36.5 29.5 20.5 21.5 41.5 DAY 12 3 22 15 28 23 1 9 12 15 26 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 16.0 34.5 39.0 11.0 1.5 0.0 3.0 0.0 0.0 0.0 6.5 25.0 39.0 DAY 19 18 25 28 6 ** 10 ** ** ** 12 20 MONTHLY TOTAL PRECIPITATION IN MM. 28.0 72.0 95.5 17.5 1.5 0.0 3.0 0.0 0.0 0.0 9.0 40.0 266.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 73.4 7.1 1.1 18.4 NO. OF DAYS WITH PRECIPITATION. 3 7 8 3 1 0 1 0 0 0 2 3 28 NO. OF DAYS PRECIPITATION EQUAL 3 7 8 3 1 0 1 0 0 0 2 3 28 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 2 1 0 0 0 0 0 0 0 2 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 72 78 75 50 36 24 29 29 35 48 76 76 52 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 45 47 38 30 22 15 19 20 23 23 34 40 30 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 77 64 46 28 20 24 24 30 33 76 60 47 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 16 7 1 0 0 0 0 0 0 0 22 13 59 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 5 14 0 0 0 0 0 19 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 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 21 27 31 26 12 0 0 0 120 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 2 0 0 0 0 0 8 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 22 16 3 0 0 0 0 0 0 30 27 120 DATE OF START AND END FREEZING START = 1 NOV. END = 9 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. -0.4 -0.1 8.3 14.2 17.8 25.0 26.2 23.2 21.4 16.0 9.5 5.8 13.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -7.5 -6.9 1.1 6.1 9.4 16.3 19.6 15.9 12.7 5.7 0.9 -1.1 6.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 6.7 6.6 15.5 22.3 26.3 33.8 32.9 30.5 30.1 26.4 18.1 12.7 21.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.2 13.5 14.4 16.2 16.9 17.5 13.3 14.6 17.4 20.7 17.2 13.8 15.8 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.72 2.65 4.83 4.31 5.10 5.51 6.44 5.55 5.06 4.13 4.07 3.81 4.51 MEAN OF MIXING RATIO AT 09 GMT. 3.60 3.85 4.66 4.35 5.44 6.61 6.94 5.62 5.73 4.79 4.57 4.62 5.07 MEAN OF MIXING RATIO AT 15 GMT. 3.06 3.62 4.55 4.23 4.93 5.74 6.43 6.07 5.55 4.70 4.35 4.65 4.82 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.0 -14.0 -3.0 -1.5 -2.5 10.0 17.0 10.5 5.0 0.5 -3.5 -5.5 -17.0 DAY 6 16 31 1 2 16 5 29 23 25 19 19 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 15.5 12.5 21.0 28.0 36.0 38.0 38.0 34.5 36.0 31.5 24.0 19.0 38.0 DAY 22 22 5 19 28 24 8 12 14 6 14 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 10.0 9.5 19.0 1.5 7.0 0.0 0.0 0.0 0.0 0.0 12.0 16.5 19.0 DAY 30 15 18 13 9 ** ** ** ** ** 6 14 MONTHLY TOTAL PRECIPITATION IN MM. 45.0 21.0 64.5 1.5 7.0 0.0 0.0 0.0 0.0 0.0 12.0 36.0 187.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 69.8 4.5 0.0 25.7 NO. OF DAYS WITH PRECIPITATION. 8 4 6 1 1 0 0 0 0 0 1 5 26 NO. OF DAYS PRECIPITATION EQUAL 8 4 6 1 1 0 0 0 0 0 1 5 26 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 4 0 0 0 0 0 0 0 1 1 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 77 76 46 39 25 29 29 34 46 67 76 52 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 59 41 24 24 18 20 18 20 20 32 45 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 74 81 66 39 32 21 24 25 26 30 51 74 45 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 22 0 0 0 0 0 0 0 0 0 10 55 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 8 1 0 0 0 0 10 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 3 1 0 0 0 0 0 0 0 0 0 0 4 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 8 24 29 21 18 4 0 0 104 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 29 28 15 2 3 0 0 0 0 0 14 23 114 DATE OF START AND END FREEZING START = 2 NOV. END = 4 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. 2.4 5.1 8.0 14.6 22.4 25.0 25.0 25.4 21.4 13.8 9.8 3.3 14.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.4 -1.4 1.5 7.6 13.9 17.3 18.0 18.1 12.9 5.0 -0.4 -5.0 7.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.3 11.6 14.6 21.7 30.8 32.8 32.1 32.7 29.9 22.7 20.0 11.6 22.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.7 13.0 13.1 14.1 16.9 15.5 14.1 14.6 17.0 17.7 20.4 16.6 15.4 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.71 4.07 4.24 5.14 5.90 5.89 6.24 5.31 4.54 4.24 3.71 3.18 4.68 MEAN OF MIXING RATIO AT 09 GMT. 5.08 4.91 4.67 5.32 6.16 6.63 7.05 6.13 5.37 4.85 5.42 4.79 5.53 MEAN OF MIXING RATIO AT 15 GMT. 4.21 4.60 4.39 5.01 5.75 6.08 6.66 5.70 5.35 4.46 4.92 4.00 5.09 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.5 -15.5 -7.0 1.5 8.5 11.5 11.5 14.0 5.5 0.0 -7.0 -14.5 -15.5 DAY 28 1 22 10 14 8 17 17 28 15 16 30 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 17.5 24.5 30.0 36.0 38.0 35.0 39.5 34.5 30.5 26.5 20.5 39.5 DAY 25 20 17 29 25 16 25 10 5 2 8 9 24 HOUR MAXIMUM PRECIPITATION IN MM. 21.0 15.0 6.5 6.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 9.0 21.0 DAY 18 7 20 10 1 ** ** ** ** ** ** 25 MONTHLY TOTAL PRECIPITATION IN MM. 95.0 65.0 19.0 10.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 9.0 201.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 89.1 6.5 0.0 4.5 NO. OF DAYS WITH PRECIPITATION. 10 7 4 2 1 0 0 0 0 0 0 1 25 NO. OF DAYS PRECIPITATION EQUAL 10 7 4 2 1 0 0 0 0 0 0 1 25 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 5 4 0 0 0 0 0 0 0 0 0 0 9 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 84 78 70 48 35 29 31 27 30 51 65 82 53 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 68 53 43 31 21 19 21 18 18 26 34 51 34 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 83 71 56 42 26 23 25 21 27 38 49 67 44 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 13 7 4 0 0 0 0 0 0 0 10 14 48 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 2 3 0 0 0 0 8 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 4 4 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 1 22 26 27 26 18 1 0 0 121 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 27 15 7 0 0 0 0 0 0 2 17 24 92 DATE OF START AND END FREEZING START = 15 OCT. END = 24 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. 4.0 2.8 8.8 15.3 19.6 24.5 25.1 23.4 17.1 13.2 9.1 5.8 14.1 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.1 -3.6 2.7 8.3 12.2 16.3 16.7 15.2 9.5 5.0 0.3 -0.2 6.7 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.1 9.1 14.8 22.3 27.1 32.7 33.6 31.6 24.6 21.4 17.8 11.8 21.4 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.2 12.7 12.1 14.0 14.9 16.4 16.9 16.4 15.1 16.4 17.5 12.0 14.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.74 3.70 5.51 5.48 5.73 6.11 6.09 5.26 4.85 4.45 3.94 4.04 4.91 MEAN OF MIXING RATIO AT 09 GMT. 4.99 4.55 6.31 6.16 6.27 6.61 7.08 6.12 5.21 5.19 4.89 5.09 5.71 MEAN OF MIXING RATIO AT 15 GMT. 4.45 4.29 5.56 5.43 5.59 6.15 6.35 5.97 4.93 4.77 4.35 4.31 5.18 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.5 -14.5 -3.5 1.5 5.5 10.0 13.5 9.5 3.0 2.5 -6.0 -7.0 -14.5 DAY 2 14 3 14 6 25 4 31 29 5 26 27 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.0 15.5 22.0 30.2 35.0 39.0 42.5 37.5 30.5 26.5 27.0 20.2 42.5 DAY 23 1 24 23 31 4 8 10 17 24 1 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 17.0 18.0 8.0 4.0 0.0 0.0 0.0 0.0 0.0 3.5 53.0 53.0 DAY 22 28 30 6 6 ** ** ** ** ** 14 16 MONTHLY TOTAL PRECIPITATION IN MM. 42.5 49.0 97.0 16.5 12.0 0.0 0.0 0.0 0.0 0.0 3.5 89.5 310.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 60.8 9.2 0.0 30.0 NO. OF DAYS WITH PRECIPITATION. 7 5 11 4 4 0 0 0 0 0 1 6 38 NO. OF DAYS PRECIPITATION EQUAL 7 5 11 4 4 0 0 0 0 0 1 6 38 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 3 5 0 0 0 0 0 0 0 0 2 12 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 84 79 51 42 31 32 34 42 57 72 77 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 58 58 55 35 26 19 20 19 25 29 36 56 36 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 79 75 68 47 33 23 22 25 34 39 53 73 48 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 11 9 0 0 0 0 0 0 0 0 4 10 34 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 0 0 0 0 0 0 2 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 2 0 0 0 0 0 0 0 0 0 0 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 2 8 22 30 19 1 0 0 0 82 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 21 21 9 0 0 0 0 0 0 0 13 16 80 DATE OF START AND END FREEZING START = 8 NOV. END = 21 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. 0.3 3.5 8.1 12.9 16.7 24.2 24.7 22.4 17.8 14.5 12.0 5.4 13.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.7 -3.6 2.8 5.6 9.2 16.3 17.8 15.8 9.4 5.1 4.5 0.1 6.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.7 10.8 13.6 20.0 23.9 32.1 31.7 28.9 26.1 23.7 19.4 10.8 20.6 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.4 14.4 10.8 14.4 14.7 15.8 14.0 13.1 16.7 18.6 14.9 10.7 14.1 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.01 3.16 4.67 5.32 5.32 7.00 6.16 5.87 5.06 4.24 4.44 4.47 4.89 MEAN OF MIXING RATIO AT 09 GMT. 4.79 4.89 5.11 6.01 5.91 6.97 6.24 5.91 5.70 5.48 5.04 5.19 5.60 MEAN OF MIXING RATIO AT 15 GMT. 3.63 4.25 4.63 5.49 5.63 6.87 6.16 5.89 5.43 4.64 4.59 4.53 5.15 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.5 -8.8 -2.5 1.0 4.5 10.5 13.5 11.5 5.0 1.5 1.0 -5.5 -15.5 DAY 9 16 27 4 28 2 12 15 22 20 29 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 12.5 17.5 17.5 26.5 29.5 37.0 34.5 34.0 34.0 28.0 24.8 17.5 37.0 DAY 17 27 12 14 16 22 1 2 27 5 6 17 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 6.0 8.5 17.0 8.0 1.0 0.0 0.0 0.0 1.0 0.0 16.0 17.0 DAY 22 1 24 5 1 3 ** ** ** 7 ** 21 MONTHLY TOTAL PRECIPITATION IN MM. 43.0 20.5 27.5 60.5 11.5 1.0 0.0 0.0 0.0 1.0 0.0 59.5 224.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 40.5 32.5 0.0 26.9 NO. OF DAYS WITH PRECIPITATION. 7 5 6 10 3 1 0 0 0 1 0 8 41 NO. OF DAYS PRECIPITATION EQUAL 7 5 6 10 3 1 0 0 0 1 0 8 41 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 1 0 0 0 0 0 0 0 2 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 81 73 64 48 37 31 34 47 50 57 81 57 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 75 55 47 39 29 21 19 21 24 27 33 59 37 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 81 80 68 52 40 27 23 28 33 37 47 73 49 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 23 16 0 0 0 0 0 0 0 0 0 3 42 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 4 0 0 0 0 0 7 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 4 1 0 0 0 0 0 0 0 0 0 0 5 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 24 24 11 4 0 0 0 63 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 24 22 5 0 0 0 0 0 0 0 0 15 66 DATE OF START AND END FREEZING START = 1 DEC. END = 27 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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.***** ***** ***** ***** ***** ***** 26.2 25.0 20.5 ***** 11.5 6.3 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 19.8 18.1 12.2 ***** 3.1 -3.2 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 33.0 31.8 28.8 ***** 20.0 15.6 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM ***** ***** ***** ***** ***** ***** 13.2 13.7 16.6 ***** 16.9 18.8 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. ***** ***** ***** ***** ***** ***** 6.25 5.54 5.35 ***** 4.43 3.21 ***** MEAN OF MIXING RATIO AT 09 GMT. ***** ***** ***** ***** ***** ***** 6.31 6.60 5.96 ***** 4.91 4.33 ***** MEAN OF MIXING RATIO AT 15 GMT. ***** ***** ***** ***** ***** ***** 6.53 6.26 5.19 ***** 4.67 4.37 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 13.5 14.5 8.5 ***** -5.5 -7.5 ****** DAY ** ** ** ** ** ** 3 24 25 ** 23 13 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. ***** ***** ***** ***** ***** ***** 37.5 34.5 32.5 ***** 26.5 19.0 ****** DAY ** ** ** ** ** ** 9 5 4 ** 10 25 24 HOUR MAXIMUM PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** 0.0 0.0 0.0 ***** 12.0 0.0 ****** DAY ** ** ** ** ** ** ** ** ** ** 5 ** MONTHLY TOTAL PRECIPITATION IN MM. ***** ***** ***** ***** ***** ***** 0.0 0.0 0.0 ***** 15.5 0.0 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION ***** ***** 0.0 100.0 NO. OF DAYS WITH PRECIPITATION. *** *** *** *** *** *** 0 0 0 *** 4 0 *** NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** 0 0 0 *** 4 0 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL *** *** *** *** *** *** 0 0 0 *** 1 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. *** *** *** *** *** *** 29 27 40 *** 67 79 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. *** *** *** *** *** *** 18 20 22 *** 30 35 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. *** *** *** *** *** *** 24 25 28 *** 47 63 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 *** 4 9 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 13 3 0 *** 0 0 *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 *** 0 0 *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 27 26 11 *** 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 *** 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL *** *** *** *** *** *** 0 0 0 *** 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. *** *** *** *** *** *** 0 0 0 *** 9 29 *** DATE OF START AND END FREEZING START = 7 NOV. END = 31 DEC. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. 3.8 4.2 11.5 14.5 20.8 24.9 25.6 25.3 17.0 ***** ***** ***** ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -3.2 -3.7 5.0 7.2 12.6 17.1 19.1 18.0 9.9 ***** ***** ***** ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.1 12.0 17.9 22.0 29.0 32.6 32.0 32.4 24.2 ***** ***** ***** ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 14.3 15.7 12.9 14.8 16.4 15.5 12.9 14.4 14.3 ***** ***** ***** ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.19 3.08 4.94 4.81 4.98 6.03 7.01 6.23 4.98 ***** ***** ***** ***** MEAN OF MIXING RATIO AT 09 GMT. 4.52 3.84 5.57 5.93 6.05 6.59 6.92 7.10 6.06 ***** ***** ***** ***** MEAN OF MIXING RATIO AT 15 GMT. 4.08 4.20 5.10 5.27 6.09 6.44 6.84 6.63 5.40 ***** ***** ***** ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.5 -8.5 0.5 -4.5 7.5 11.0 15.5 13.5 5.5 ***** ***** ***** ****** DAY 13 8 3 6 9 11 4 27 14 ** ** ** ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.0 16.0 25.0 32.5 32.5 37.5 35.5 36.5 29.2 ***** ***** ***** ****** DAY 5 14 22 26 16 29 7 2 1 ** ** ** 24 HOUR MAXIMUM PRECIPITATION IN MM. 31.0 1.0 18.0 9.5 4.5 0.0 0.0 0.0 0.0 ***** ***** ***** ****** DAY 24 28 2 3 2 ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 65.5 1.0 27.5 14.0 6.5 0.0 0.0 0.0 0.0 ***** ***** ***** ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 82.1 17.9 0.0 ***** NO. OF DAYS WITH PRECIPITATION. 6 1 3 2 2 0 0 0 0 *** *** *** *** NO. OF DAYS PRECIPITATION EQUAL 6 1 3 2 2 0 0 0 0 *** *** *** *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 0 1 0 0 0 0 0 0 *** *** *** *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 76 66 56 39 33 37 33 46 *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 51 40 40 32 21 19 21 21 28 *** *** *** *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 66 54 40 29 23 25 25 36 *** *** *** *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 13 15 0 1 0 0 0 0 0 *** *** *** *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 5 4 0 *** *** *** *** OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 1 0 0 0 0 0 0 0 *** *** *** *** OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 4 12 22 24 18 0 *** *** *** *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 *** *** *** *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 *** *** *** *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 22 24 0 3 0 0 0 0 0 *** *** *** *** DATE OF START AND END FREEZING START = 1 JAN. END = 7 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.8 5.6 7.8 14.8 20.1 24.2 29.0 25.5 ***** 14.4 10.4 3.4 ****** AVERAGE OF MINIMUM TEMPERATURE IN C. -3.3 -1.5 0.8 7.4 12.0 16.8 22.1 17.8 ***** 5.4 0.2 -2.7 ****** AVERAGE OF MAXIMUM TEMPERATURE IN C. 12.7 12.8 14.9 22.2 27.9 31.5 35.8 32.5 ***** 23.1 20.6 9.6 ****** DIFFERENCE BETWEEN AVERAGE MAXIMUM 16.0 14.3 14.1 14.8 15.9 14.7 13.7 14.7 ***** 17.7 20.4 12.3 ****** AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.33 3.88 4.66 5.20 4.84 5.04 6.21 4.95 ***** 4.40 3.56 3.54 ***** MEAN OF MIXING RATIO AT 09 GMT. 4.45 4.98 5.76 5.93 5.60 6.22 7.25 6.11 ***** 4.88 4.69 4.96 ***** MEAN OF MIXING RATIO AT 15 GMT. 4.59 4.89 5.33 5.59 5.38 5.84 6.90 5.72 ***** 4.58 4.28 4.55 ***** ABSOLUTE OF MINIMUM TEMPERATURE IN C. -8.5 -7.5 -7.5 1.5 7.0 9.5 18.5 13.0 ***** -1.5 -9.5 -10.0 ****** DAY 10 26 1 1 1 3 26 31 ** 19 27 1 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.5 18.5 21.0 28.5 35.5 38.5 38.5 35.5 ***** 29.5 26.5 14.5 ****** DAY 17 5 25 22 9 16 1 1 ** 3 3 3 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 12.0 18.0 16.5 0.0 0.0 0.0 0.0 ***** 3.0 0.0 9.0 ****** DAY 24 7 20 25 ** ** ** ** ** 22 ** 18 MONTHLY TOTAL PRECIPITATION IN MM. 6.0 34.5 58.5 64.0 0.0 0.0 0.0 0.0 ***** 3.0 0.0 45.5 ****** ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 46.8 30.3 0.0 22.9 NO. OF DAYS WITH PRECIPITATION. 2 5 6 8 0 0 0 0 *** 1 0 8 *** NO. OF DAYS PRECIPITATION EQUAL 2 5 6 8 0 0 0 0 *** 1 0 8 *** OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 2 3 3 0 0 0 0 *** 0 0 0 *** OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 82 81 80 60 40 31 27 28 *** 59 67 83 *** MEAN OF RELATIVE HUMIDITY AT 09 GMT. 43 48 48 35 21 19 17 18 *** 26 28 60 *** MEAN OF RELATIVE HUMIDITY AT 15 GMT. 76 76 63 44 27 22 20 20 *** 37 43 78 *** NO. OF DAYS MINIMUM TEMPERATURE EQUAL 16 12 11 0 0 0 0 0 *** 0 8 10 *** OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 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 0 9 23 31 17 *** 0 0 0 *** OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** 0 0 0 *** OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 *** 0 0 0 *** OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 18 14 0 0 0 0 0 *** 3 15 22 *** DATE OF START AND END FREEZING START = 18 OCT. END = 29 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. -0.3 6.4 8.7 16.4 20.5 24.8 24.5 22.9 23.6 14.2 8.9 5.4 14.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.9 0.7 4.1 8.6 12.5 17.8 18.6 15.7 14.9 5.5 0.2 -2.1 7.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 5.1 11.8 13.7 24.3 28.4 31.8 30.4 30.2 32.3 23.0 17.6 13.1 21.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.0 11.1 9.6 15.6 15.9 13.9 11.8 14.5 17.3 17.5 17.4 15.2 14.2 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.59 4.21 5.34 4.40 4.83 5.17 5.40 5.18 4.92 4.36 3.65 3.47 4.46 MEAN OF MIXING RATIO AT 09 GMT. 3.82 4.90 5.73 5.04 5.76 6.05 6.22 6.21 6.07 4.83 4.30 4.33 5.27 MEAN OF MIXING RATIO AT 15 GMT. 3.44 4.69 5.34 4.64 5.31 5.71 5.74 5.82 5.82 4.41 4.26 4.32 4.96 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -17.5 -7.5 -1.0 2.5 7.5 11.5 14.0 7.5 11.5 1.5 -7.5 -8.5 -17.5 DAY 22 7 27 1 11 16 6 26 2 3 14 10 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 14.5 19.5 19.0 32.5 34.5 39.0 34.5 34.5 38.0 28.0 26.0 19.0 39.0 DAY 30 11 23 26 18 5 8 24 10 6 5 29 24 HOUR MAXIMUM PRECIPITATION IN MM. 14.0 17.0 20.0 6.0 3.5 4.5 0.0 0.0 0.0 0.0 3.0 9.0 20.0 DAY 20 6 17 4 22 11 ** ** ** ** 30 16 MONTHLY TOTAL PRECIPITATION IN MM. 23.0 64.5 132.0 6.0 8.5 4.5 0.0 0.0 0.0 0.0 3.0 9.0 250.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 87.6 7.6 0.0 4.8 NO. OF DAYS WITH PRECIPITATION. 2 7 17 1 4 1 0 0 0 0 1 1 34 NO. OF DAYS PRECIPITATION EQUAL 2 7 17 1 4 1 0 0 0 0 1 1 34 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 4 6 0 0 0 0 0 0 0 0 0 11 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 79 78 49 38 28 28 34 32 56 71 79 54 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 59 52 53 24 21 18 20 20 18 25 32 41 32 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 78 72 65 31 27 22 22 23 21 32 48 70 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 16 4 0 0 0 0 0 0 0 0 8 9 37 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 3 3 1 0 0 0 13 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 9 0 0 0 0 0 0 0 0 0 0 0 9 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 10 17 20 17 22 0 0 0 89 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. 28 8 4 0 0 0 0 0 0 0 13 20 73 DATE OF START AND END FREEZING START = 12 NOV. END = 27 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 3.2 3.4 7.9 14.1 19.2 25.1 26.9 24.6 21.4 16.5 8.1 4.6 14.6 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.6 -4.8 1.6 7.4 11.2 17.8 20.3 17.8 12.2 8.3 2.0 -1.8 7.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.1 11.6 14.3 20.8 27.2 32.5 33.3 31.5 30.8 24.8 14.1 11.0 21.8 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.7 16.4 12.7 13.4 16.0 14.8 13.0 13.8 18.6 16.5 12.1 12.8 14.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.08 2.61 4.38 4.76 4.55 4.72 5.25 4.58 4.19 4.50 4.23 3.76 4.22 MEAN OF MIXING RATIO AT 09 GMT. 4.41 4.23 4.94 4.93 5.15 6.07 6.24 5.69 5.66 5.26 4.45 4.54 5.13 MEAN OF MIXING RATIO AT 15 GMT. 4.25 4.11 4.85 4.73 4.78 5.72 5.88 5.24 4.97 4.82 4.50 4.57 4.87 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -7.0 -12.5 -7.0 0.0 4.5 13.5 17.0 10.5 8.5 3.5 -5.5 -7.5 -12.5 DAY 15 9 1 14 7 1 12 31 18 20 25 29 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 16.0 21.5 20.5 26.0 34.0 37.5 37.0 35.2 36.0 33.0 23.0 17.0 37.5 DAY 1 22 3 30 30 16 16 16 1 4 4 10 24 HOUR MAXIMUM PRECIPITATION IN MM. 24.0 2.5 19.0 10.5 14.0 1.5 0.0 0.0 0.0 9.0 3.0 18.0 24.0 DAY 18 12 26 23 6 2 ** ** ** 22 13 21 MONTHLY TOTAL PRECIPITATION IN MM. 34.5 2.5 54.0 40.0 14.0 2.5 0.0 0.0 0.0 13.5 8.5 49.0 218.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.6 25.9 0.0 32.5 NO. OF DAYS WITH PRECIPITATION. 3 1 7 9 1 2 0 0 0 4 3 5 35 NO. OF DAYS PRECIPITATION EQUAL 3 1 7 9 1 2 0 0 0 4 3 5 35 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 2 1 1 0 0 0 0 0 0 3 8 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 70 75 57 40 27 26 28 35 48 73 83 54 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 46 43 29 21 18 17 17 18 25 40 50 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 75 72 60 39 26 21 19 19 21 36 61 72 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 16 19 2 0 0 0 0 0 0 0 1 5 43 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 14 7 0 0 0 0 25 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 8 26 29 18 20 7 0 0 108 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 26 21 11 1 0 0 0 0 0 0 10 22 91 DATE OF START AND END FREEZING START = 9 NOV. END = 14 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. 3.2 6.1 10.3 16.2 20.4 22.9 26.2 25.4 22.2 15.6 12.1 10.9 16.0 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.3 0.4 4.5 9.0 12.6 16.2 19.3 18.2 13.4 6.8 2.6 2.2 8.6 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.6 11.7 16.1 23.5 28.2 29.7 33.1 32.5 31.0 24.4 21.4 19.6 23.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 10.9 11.3 11.6 14.5 15.6 13.5 13.8 14.3 17.6 17.6 18.8 17.4 14.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.38 4.16 4.41 4.52 4.28 4.40 4.78 4.73 4.30 4.27 4.33 4.07 4.30 MEAN OF MIXING RATIO AT 09 GMT. 4.54 4.73 4.64 4.98 5.39 5.43 6.04 5.79 5.56 4.84 4.35 4.29 5.05 MEAN OF MIXING RATIO AT 15 GMT. 4.26 4.49 4.56 4.99 4.97 5.20 5.45 5.20 4.98 4.51 4.07 4.24 4.75 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -14.0 -6.5 -5.5 1.5 3.5 12.0 14.0 15.0 8.0 2.5 -2.5 -5.0 -14.0 DAY 16 17 4 8 5 12 3 10 21 10 28 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 13.5 20.0 26.5 31.0 33.5 33.5 42.0 37.0 35.5 35.0 25.0 25.5 42.0 DAY 26 9 30 19 13 4 6 24 12 5 3 13 24 HOUR MAXIMUM PRECIPITATION IN MM. 18.0 30.0 9.0 11.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 30.0 DAY 14 13 11 6 16 ** ** ** ** ** ** 8 MONTHLY TOTAL PRECIPITATION IN MM. 49.5 67.5 47.5 37.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 204.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 80.4 19.1 0.0 0.5 NO. OF DAYS WITH PRECIPITATION. 5 7 7 7 1 0 0 0 0 0 0 1 28 NO. OF DAYS PRECIPITATION EQUAL 5 7 7 7 1 0 0 0 0 0 0 1 28 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 2 0 1 0 0 0 0 0 0 0 0 5 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 76 79 64 50 36 28 25 26 33 52 70 67 51 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 57 50 38 26 21 18 17 17 18 23 24 27 28 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 77 70 54 35 25 21 19 19 20 28 36 45 37 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 12 5 3 0 0 0 0 0 0 0 0 2 22 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 1 10 6 0 0 0 0 18 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 0 0 0 0 0 0 0 0 0 0 0 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 14 12 25 27 20 6 0 0 107 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 0 0 0 0 0 2 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 18 13 4 0 0 0 0 0 0 0 3 8 46 DATE OF START AND END FREEZING START = 24 NOV. END = 6 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 4.2 7.6 9.1 15.8 20.3 25.9 25.8 24.6 21.1 18.0 9.5 7.5 15.8 AVERAGE OF MINIMUM TEMPERATURE IN C. -2.1 2.4 3.2 8.2 11.9 17.5 18.8 16.9 12.3 8.7 0.3 -2.4 8.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.4 13.6 15.1 23.5 28.8 34.4 32.8 32.4 29.9 27.3 18.5 17.4 23.7 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.5 11.2 11.9 15.3 16.9 16.9 14.0 15.5 17.6 18.6 18.3 19.8 15.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.59 4.39 4.45 4.36 4.24 4.84 5.11 4.68 4.60 4.37 3.97 3.45 4.34 MEAN OF MIXING RATIO AT 09 GMT. 4.42 4.69 4.65 4.70 5.14 6.43 6.27 5.93 5.78 5.12 4.60 4.19 5.16 MEAN OF MIXING RATIO AT 15 GMT. 3.96 4.83 4.65 4.53 4.67 5.57 5.74 5.68 5.49 4.59 4.35 4.14 4.85 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -11.0 -6.0 -3.5 0.0 7.5 13.0 12.5 12.0 6.5 5.0 -6.0 -6.5 -11.0 DAY 9 2 20 13 24 1 30 20 28 9 29 3 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.0 18.0 22.5 28.5 34.5 39.5 41.0 37.5 37.0 31.0 24.0 20.0 41.0 DAY 3 26 26 25 14 30 8 30 11 20 1 11 24 HOUR MAXIMUM PRECIPITATION IN MM. 8.0 22.0 15.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22.0 DAY 29 6 3 ** ** ** ** ** ** ** ** ** MONTHLY TOTAL PRECIPITATION IN MM. 28.5 76.0 60.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 164.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 100.0 0.0 0.0 0.0 NO. OF DAYS WITH PRECIPITATION. 6 8 8 0 0 0 0 0 0 0 0 0 22 NO. OF DAYS PRECIPITATION EQUAL 6 8 8 0 0 0 0 0 0 0 0 0 22 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 3 3 0 0 0 0 0 0 0 0 0 6 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 78 72 70 48 35 28 27 28 38 45 75 80 52 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 54 43 40 23 19 17 18 17 20 20 31 30 28 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 61 55 31 24 19 21 21 26 27 43 45 37 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 10 2 0 0 0 0 0 0 0 0 8 15 35 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 2 8 4 0 0 0 0 14 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 12 26 24 30 15 1 0 0 108 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 1 0 0 0 0 0 1 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 20 9 8 1 0 0 0 0 0 0 13 23 74 DATE OF START AND END FREEZING START = 4 NOV. END = 13 APR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. 3.6 5.1 8.8 18.8 24.4 24.5 24.3 24.7 23.3 17.6 8.8 6.8 15.9 AVERAGE OF MINIMUM TEMPERATURE IN C. -3.2 -1.4 2.0 9.8 15.5 16.9 17.4 18.2 15.7 9.2 2.0 0.4 8.5 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.4 11.7 15.7 27.9 33.3 32.1 31.2 31.3 31.0 26.1 15.6 13.2 23.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.6 13.1 13.7 18.1 17.8 15.2 13.8 13.1 15.3 16.9 13.6 12.8 14.7 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.32 3.83 4.30 4.29 4.34 4.65 5.15 4.79 4.43 4.37 4.27 4.19 4.33 MEAN OF MIXING RATIO AT 09 GMT. 4.22 4.19 4.20 5.31 5.90 5.89 6.03 5.54 5.70 5.35 4.72 4.46 5.13 MEAN OF MIXING RATIO AT 15 GMT. 4.14 4.33 4.27 4.89 5.37 5.35 5.64 5.31 5.18 4.71 4.52 4.59 4.86 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -12.0 -6.5 -5.5 3.5 10.5 10.5 9.5 11.5 8.0 3.0 -3.5 -7.0 -12.0 DAY 14 11 3 2 13 14 21 16 27 6 18 31 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.5 18.5 22.5 32.0 37.0 39.0 33.2 35.5 36.5 30.0 25.5 20.5 39.0 DAY 1 25 24 30 7 26 12 28 21 1 2 1 24 HOUR MAXIMUM PRECIPITATION IN MM. 20.0 5.5 5.0 0.0 0.0 0.0 0.0 0.0 1.0 4.0 11.0 9.0 20.0 DAY 29 15 25 ** ** ** ** ** 25 5 7 16 MONTHLY TOTAL PRECIPITATION IN MM. 41.0 20.0 9.0 0.0 0.0 0.0 0.0 0.0 1.0 4.0 32.5 26.5 134.0 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 52.2 0.0 0.7 47.0 NO. OF DAYS WITH PRECIPITATION. 4 5 3 0 0 0 0 0 1 1 4 4 22 NO. OF DAYS PRECIPITATION EQUAL 4 5 3 0 0 0 0 0 1 1 4 4 22 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 0 0 0 0 0 0 0 0 0 2 0 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 77 79 73 43 29 28 31 26 30 43 72 78 51 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 50 44 34 20 16 18 19 17 18 23 40 44 29 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 70 69 53 26 19 20 21 20 20 28 57 69 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 13 9 1 0 0 0 0 0 0 0 0 2 25 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 1 2 4 5 0 0 0 0 12 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 24 24 21 24 2 0 0 135 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. 23 18 5 0 0 0 0 0 0 0 11 12 69 DATE OF START AND END FREEZING START = 12 NOV. END = 5 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPERATURE IN C. 2.7 5.9 11.5 18.3 23.2 25.4 26.1 24.6 20.9 17.8 11.3 8.3 16.3 AVERAGE OF MINIMUM TEMPERATURE IN C. -5.1 -1.9 3.8 9.3 14.5 18.2 19.0 16.8 12.2 8.6 2.8 2.1 8.4 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.5 13.7 19.3 27.2 31.9 32.6 33.1 32.3 29.6 26.9 19.7 14.4 24.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 15.6 15.6 15.5 17.9 17.4 14.4 14.1 15.5 17.4 18.3 16.9 12.3 15.9 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.84 3.68 4.31 4.21 4.62 5.22 5.12 4.88 4.53 4.34 4.09 4.67 4.37 MEAN OF MIXING RATIO AT 09 GMT. 3.85 4.07 4.51 5.21 6.06 6.58 6.89 6.28 5.90 5.30 4.39 5.37 5.37 MEAN OF MIXING RATIO AT 15 GMT. 3.97 4.25 4.26 4.80 5.50 6.00 6.07 5.68 5.23 4.71 4.33 5.21 5.00 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -15.5 -9.0 -4.5 4.5 10.0 11.0 13.0 13.5 5.5 1.5 -7.5 -3.0 -15.5 DAY 30 1 13 3 7 22 31 14 14 12 21 4 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.0 18.5 26.0 32.5 36.0 39.0 38.0 38.8 38.0 31.5 29.0 19.0 39.0 DAY 14 21 31 27 30 8 18 25 7 8 18 31 24 HOUR MAXIMUM PRECIPITATION IN MM. 5.0 2.5 11.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.5 8.0 11.5 DAY 28 19 11 ** ** ** ** ** ** ** 29 20 MONTHLY TOTAL PRECIPITATION IN MM. 7.0 5.0 14.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6.5 31.5 64.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 41.1 0.0 0.0 58.9 NO. OF DAYS WITH PRECIPITATION. 2 2 2 0 0 0 0 0 0 0 2 9 17 NO. OF DAYS PRECIPITATION EQUAL 2 2 2 0 0 0 0 0 0 0 2 9 17 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 0 0 1 0 0 0 0 0 0 0 0 0 1 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 79 79 62 41 33 29 27 29 37 42 64 76 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 45 38 31 20 18 19 21 18 20 21 28 48 27 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 73 63 45 25 20 21 21 20 25 32 48 67 38 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 20 11 1 0 0 0 0 0 0 0 3 0 35 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 6 6 1 1 0 0 0 14 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 0 0 0 0 0 0 0 0 0 0 0 2 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 6 24 21 26 25 13 5 0 0 120 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 30 20 3 0 0 0 0 0 0 0 8 8 69 DATE OF START AND END FREEZING START = 3 NOV. END = 28 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. 4.7 6.9 11.9 15.8 21.4 25.4 24.8 25.0 20.2 17.6 10.6 4.6 15.7 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.2 0.6 4.0 8.6 13.0 17.3 18.1 17.6 11.3 8.8 3.0 -1.9 8.3 AVERAGE OF MAXIMUM TEMPERATURE IN C. 10.6 13.3 19.8 23.0 29.8 33.5 31.4 32.4 29.2 26.3 18.3 11.2 23.2 DIFFERENCE BETWEEN AVERAGE MAXIMUM 11.8 12.7 15.8 14.4 16.8 16.2 13.3 14.8 17.9 17.5 15.2 13.1 15.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.61 4.12 4.22 5.19 5.09 4.89 5.14 4.59 4.14 4.17 4.35 3.89 4.45 MEAN OF MIXING RATIO AT 09 GMT. 4.63 4.36 3.84 5.75 5.88 5.94 5.88 5.26 5.08 4.77 4.47 4.52 5.03 MEAN OF MIXING RATIO AT 15 GMT. 4.39 4.50 4.35 5.99 5.63 5.41 5.45 5.08 4.73 4.33 4.19 4.29 4.86 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -9.0 -8.0 -5.0 2.0 8.0 12.5 13.5 5.5 6.5 2.5 -5.5 -10.0 -10.0 DAY 19 7 8 5 15 8 23 15 1 19 19 5 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.0 19.0 26.5 31.5 36.0 39.5 36.5 36.5 34.5 31.5 24.5 16.5 39.5 DAY 2 13 18 29 25 30 25 17 14 6 1 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 30.0 11.0 6.0 14.0 1.0 0.0 0.0 0.0 0.0 0.0 3.0 7.5 30.0 DAY 12 21 20 4 3 ** ** ** ** ** 17 23 MONTHLY TOTAL PRECIPITATION IN MM. 76.0 36.0 11.5 32.0 1.0 0.0 0.0 0.0 0.0 0.0 4.5 18.2 179.2 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 68.9 18.4 0.0 12.7 NO. OF DAYS WITH PRECIPITATION. 5 8 3 6 1 0 0 0 0 0 2 5 30 NO. OF DAYS PRECIPITATION EQUAL 5 8 3 6 1 0 0 0 0 0 2 4 29 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 0 1 0 0 0 0 0 0 0 0 4 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 74 75 62 55 37 28 28 26 35 41 65 77 50 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 52 42 24 30 20 17 18 15 18 20 30 49 28 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 63 43 42 26 19 20 18 22 28 42 69 39 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 12 4 1 0 0 0 0 0 0 0 2 11 30 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 4 5 4 0 0 0 0 13 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 15 23 20 26 14 2 0 0 101 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 19 10 9 0 0 0 0 0 0 0 9 23 70 DATE OF START AND END FREEZING START = 10 NOV. END = 12 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 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. 5.0 7.8 10.5 17.4 18.2 24.1 27.6 24.2 20.3 17.4 8.7 4.9 15.5 AVERAGE OF MINIMUM TEMPERATURE IN C. -1.2 1.3 4.3 9.7 10.1 16.0 20.2 17.4 12.2 8.0 -0.0 -1.9 8.0 AVERAGE OF MAXIMUM TEMPERATURE IN C. 11.2 14.3 16.8 25.1 26.1 32.3 34.9 30.9 28.4 26.8 17.4 11.8 23.0 DIFFERENCE BETWEEN AVERAGE MAXIMUM 12.4 13.0 12.5 15.4 16.0 16.3 14.7 13.5 16.2 18.8 17.4 13.7 15.0 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 3.98 4.16 4.20 4.50 4.30 4.59 5.33 4.49 4.20 4.08 3.70 3.59 4.26 MEAN OF MIXING RATIO AT 09 GMT. 4.20 4.17 4.20 5.13 4.72 5.55 6.80 5.32 5.09 4.84 4.11 4.28 4.87 MEAN OF MIXING RATIO AT 15 GMT. 4.17 4.24 4.32 4.94 4.65 5.01 6.02 5.02 4.64 4.34 4.12 4.20 4.64 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -13.5 -7.0 -10.0 1.5 1.5 10.5 11.5 13.5 5.5 4.5 -9.0 -14.0 -14.0 DAY 21 18 3 19 3 7 13 29 29 15 25 12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 18.0 19.0 23.5 33.0 31.5 35.5 41.0 40.0 35.5 32.0 24.5 18.0 41.0 DAY 10 25 26 28 18 3 3 1 20 2 1 18 24 HOUR MAXIMUM PRECIPITATION IN MM. 11.0 15.0 45.0 8.0 2.5 0.0 0.0 0.0 0.0 0.0 3.5 6.5 45.0 DAY 19 6 14 18 20 ** ** ** ** ** 14 28 MONTHLY TOTAL PRECIPITATION IN MM. 30.5 22.5 60.0 10.0 2.5 0.0 0.0 0.0 0.0 0.0 3.5 11.5 140.5 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 80.4 8.9 0.0 10.7 NO. OF DAYS WITH PRECIPITATION. 5 3 5 3 1 0 0 0 0 0 1 3 21 NO. OF DAYS PRECIPITATION EQUAL 5 3 5 3 1 0 0 0 0 0 1 3 21 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 1 1 1 0 0 0 0 0 0 0 0 0 3 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 80 71 60 45 42 26 26 24 33 40 66 71 49 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 47 37 33 24 20 16 17 17 19 20 31 46 27 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 68 58 50 33 27 21 20 20 24 25 45 65 38 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 5 2 3 0 0 0 0 0 0 0 9 11 30 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 1 11 4 0 0 0 0 16 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 1 1 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 6 4 25 30 24 13 3 0 0 105 OR MORE THAN 30 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 2 1 0 0 0 0 3 OR MORE THAN 40 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 0 0 0 0 0 0 0 0 0 0 OR MORE THAN 45 NUMBER OF FREEZING DAYS. 19 11 8 0 0 0 0 0 0 0 14 19 71 DATE OF START AND END FREEZING START = 5 NOV. END = 15 MAR. IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE PERIOD 1970 TO 2003 PAGE 1 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE OF MEAN DAILY TEMPE. IN C. 2.1 4.4 9.1 15.8 20.5 24.6 25.5 23.8 19.8 15.3 9.0 4.6 14.6 SD OF MEAN DAILY TEMPERATURE IN C. 2.18 2.42 2.25 1.74 1.91 1.04 1.29 1.59 2.08 2.15 2.07 2.66 1.95 AVERAGE OF MINIMUM TEMPERATURE IN C. -4.9 -2.8 1.9 8.1 12.3 16.7 18.3 16.4 11.4 6.4 0.6 -3.2 6.8 AVERAGE OF MAXIMUM TEMPERATURE IN C. 8.9 11.5 16.1 23.4 28.7 32.5 32.7 31.3 28.3 24.3 17.4 12.2 22.3 DIFFERENCE BETWEEN AVERAGE MAXIMUM 13.8 14.3 14.0 15.2 16.4 15.8 14.4 15.0 16.9 17.8 16.8 15.5 15.5 AND MINIMUM TEMPERATURE. MEAN OF MIXING RATIO AT 03 GMT. 2.84 3.40 4.28 4.71 5.11 5.45 5.62 5.29 4.76 4.41 3.97 3.29 4.42 MEAN OF MIXING RATIO AT 09 GMT. 4.29 4.37 4.75 5.21 5.87 6.31 6.45 6.09 5.61 5.15 4.76 4.55 5.28 MEAN OF MIXING RATIO AT 15 GMT. 3.71 4.18 4.55 4.87 5.36 5.74 5.98 5.71 5.12 4.64 4.48 4.08 4.86 ABSOLUTE OF MINIMUM TEMPERATURE IN C. -18.5 -23.0 -12.5 -6.5 -2.5 8.5 8.0 4.5 0.0 -5.0 -14.5 -20.0 -23.0 YEAR - DAY 77-18 72-12 79- 8 81- 3 89- 2 79- 2 71-18 72- 8 74-30 70-24 76-20 82- 9 72-12 ABSOLUTE OF MAXIMUM TEMPERATURE IN C. 20.0 22.5 28.5 33.0 37.0 41.5 42.5 40.2 38.0 35.0 29.0 25.5 42.5 YEAR - DAY 71- 7 85-24 74-17 3-28 74-28 88-23 91- 8 70- 6 96-10 98- 5 1-18 98-13 91- 8 24 HOUR MAXIMUM PRECIPITATION IN MM. 31.0 34.5 45.0 27.0 26.0 4.5 3.0 0.0 1.0 9.0 15.0 53.0 53.0 YEAR - DAY 94-24 88-18 3-14 83- 2 79- 9 96-11 88-10 **-** 0-25 97-22 78-19 91-16 91-16 MONTHLY TOTAL PRECIPITATION IN MM. 43.1 37.2 50.7 23.9 5.8 0.3 0.1 0.0 0.0 2.1 6.5 27.4 197.1 ---------------- ---------------- ---------------- ---------------- SEASONAL PERCENT OF PRECIPITATION 66.6 15.2 0.0 18.3 NO. OF DAYS WITH PRECIPITATION. 5 5 6 4 1 0 0 0 0 1 1 4 27 NO. OF DAYS PRECIPITATION EQUAL 5 5 6 4 1 0 0 0 0 1 1 4 27 OR MORE THAN 1 MM. NO. OF DAYS PRECIPITATION EQUAL 2 1 2 1 0 0 0 0 0 0 0 1 7 OR MORE THAN10 MM. MEAN OF RELATIVE HUMIDITY AT 03 GMT. 70 73 69 48 36 28 27 29 36 50 69 72 51 MEAN OF RELATIVE HUMIDITY AT 09 GMT. 56 48 39 27 22 18 19 19 21 25 35 48 31 MEAN OF RELATIVE HUMIDITY AT 15 GMT. 72 70 58 38 28 22 22 24 28 35 55 68 43 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 17 11 4 0 0 0 0 0 0 0 5 13 50 OR LESS THAN -4 NO. OF DAYS MINIMUM TEMPERATURE EQUAL 0 0 0 0 0 3 6 2 0 0 0 0 11 OR MORE THAN 21 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 2 1 0 0 0 0 0 0 0 0 0 1 4 OR LESS THAN 0 NO. OF DAYS MAXIMUM TEMPERATURE EQUAL 0 0 0 3 13 23 26 21 11 2 0 0 99 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. 25 19 10 1 0 0 0 0 0 2 13 23 93 DATE OF START AND END FREEZING START = 30 SEP. END = 4 MAY IRANIAN METEOROLOGICAL ORGANIZATION ( IMO ) STATION SEDEH-BIRJAND LATITUDE 33 20 N DATA PROCESSING CENTER LONGITUDE 59 14 E ELEVATION 1600 MET. MEAN AND EXTREMES FOR THE PERIOD 1970 TO 2003 PAGE 2 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AVERAGE DRY BULB TEMPERATURE. IN C. 2.0 4.3 9.1 16.6 22.3 26.7 27.4 25.7 21.7 16.5 9.5 4.6 15.5 AVERAGE DEW POINT TEMPERATURE. IN C. -4.3 -2.6 -0.5 0.8 2.2 3.3 3.7 2.9 1.5 0.3 -0.9 -2.7 0.3 AVERAGE OF MIXING RATIO IN G/KG 3.61 3.99 4.52 4.92 5.44 5.83 6.00 5.69 5.16 4.73 4.40 3.98 4.86 AVERAGE OF VAPOUR PRESSURE HPA 4.81 5.33 6.04 6.61 7.32 7.86 8.10 7.67 6.94 6.35 5.88 5.31 6.52 AVERAGE OF SATURATION DEFICIT IN HPA 2.99 3.97 6.57 13.77 21.20 28.60 29.51 26.57 20.68 14.12 7.37 4.25 14.97 AVERAGE RELATIVE HUMIDITY IN PERCENT 66 63 56 38 28 23 23 24 28 37 53 62 42 AVERAGE OF MAXIMUM RELATIVE HUMIDITY(%) 81 80 72 50 37 29 28 30 36 50 71 79 54 AVERAGE OF MINIMUM RELATIVE HUMIDITY(%) 49 44 38 27 21 18 18 19 21 25 34 44 30 NO. OF DAYS PRECIPITATION EQUAL 4 3 4 2 0 0 0 0 0 0 1 2 16 OR MORE THAN 5 MM.