STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.3 10.1 13.9 18.6 23.7 29.6 31.3 27.5 25.0 19.9 13.3 7.6 19.1 MINIMUN AIR TEMPERATURE (C) 1.6 0.4 5.3 8.6 13.7 18.6 21.7 17.3 12.6 8.0 2.7 0.8 9.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 5 20 6 0 0 0 0 31 DAYS WITH MINIMUM TEMP. <=-4 2 5 0 0 0 0 0 0 0 0 0 10 17 DAYS WITH FREEZING MIN.<= 0 9 17 3 0 0 0 0 0 0 0 7 16 52 TEMPERATURE RECORDS LOWEST(C) -4.2 -7.0 -3.6 2.4 5.2 13.0 18.2 13.0 9.8 2.0 -1.0 -6.0 -7.0 DAY 7 8 11 9 1 9 3 13 28 29 17 12 MAXIMUM AIR TEMPERATURE (C) 13.4 16.7 19.9 24.9 29.6 35.7 37.3 33.6 31.8 26.6 19.9 12.5 25.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 13 30 31 31 29 3 0 0 137 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.5 22.5 25.4 29.6 34.5 38.5 39.0 37.5 34.5 32.5 23.8 18.5 39.0 DAY 19 25 19 23 29 29 26 3 4 1 3 3 DIF. BETWEEN (MAX.-MIN.) (C) 11.8 16.3 14.6 16.3 15.9 17.1 15.6 16.3 19.2 18.6 17.2 11.7 15.8 MEAN DAILY TEMP. (MDT) (C) 7.5 8.5 12.6 16.8 21.6 27.2 29.5 25.5 22.2 17.3 11.3 6.6 17.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 40.9 184.5 262.9 139.0 39.7 4.6 0.0 0.0 671.7 HEATING DEG. DAYS(BASE 18 0C) 325.6 265.7 169.2 49.6 1.8 0.0 0.0 0.0 0.0 45.2 200.9 353.2 1411.1 DEWPOINT (MEAN C) 0.1 -7.2 -2.5 -0.3 3.8 7.1 9.2 4.8 1.0 -1.9 -3.0 -3.8 0.6 MIXING RATIO (G/KG) 4.78 2.93 4.08 4.70 6.32 8.23 9.56 7.16 5.38 4.21 3.80 3.84 5.42 VAPOUR PRESSURE (HPA) 6.31 3.86 5.38 6.18 8.29 10.69 12.39 9.35 7.07 5.57 5.03 5.08 7.10 SATURATION DEF. (HPA) 5.16 9.41 11.57 16.52 22.48 32.67 34.87 29.08 26.56 19.19 11.20 5.87 18.71 RELATIVE HUMIDITY (MEAN %) 59 33 36 31 31 26 28 26 23 25 35 49 34 RELATIVE HUMIDITY (MAX. %) 80 53 55 50 47 38 38 40 34 41 55 68 50 RELATIVE HUMIDITY (MIN. %) 42 20 24 20 21 19 20 19 16 16 22 34 23 RELATIVE HUMIDITY (MEAN% 03UTC) 79 53 52 49 47 38 37 40 33 41 55 66 49 RELATIVE HUMIDITY (MEAN% 09UTC) 51 25 30 26 24 21 24 21 18 21 29 40 28 RELATIVE HUMIDITY (MEAN% 15UTC) 52 26 30 24 26 23 24 24 19 19 27 47 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 41.5 2.5 5.3 1.3 9.1 2.0 0.0 4.2 0.0 0.0 0.2 33.0 99.1 DAYS WITH PRECIPITATION >=10 1 0 0 0 0 0 0 0 0 0 0 2 3 DAYS WITH PRECIPITATION >= 5 1 0 0 0 1 0 0 0 0 0 0 3 5 DAYS WITH PRECIPITATION >= 1 4 1 3 1 1 1 0 2 0 0 0 4 17 DAYS WITH PRECIPITATION 7 2 4 2 2 1 0 3 0 0 1 5 27 GREATEST DAILY PRECIPITATION 36.0 2.0 2.0 1.0 9.0 2.0 0.0 2.0 0.0 0.0 0.2 14.0 36.0 DAY 3 3 4 20 14 13 ** 1 ** ** 14 20 DAY WITH THUNDER STORM 1 0 2 1 3 0 0 0 0 0 0 0 7 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 5 2 1 5 1 14 2 2 2 0 1 35 WIND DIRECTION (PREVAILING) 135 225 225 225 270 135 270 360 270 225 270 135 225 PREVAILING WIND SPEED(KNOTS) 5.0 9.3 7.8 6.4 5.8 5.3 6.5 11.1 6.8 6.2 5.4 6.5 6.7 PREVAILING WIND PERCENT 18.7 24.3 29.0 26.0 25.2 14.7 14.2 33.5 19.3 16.1 13.3 24.5 15.9 CALMS PERCENT OF WIND 32.9 30.0 12.9 10.7 16.8 13.3 29.7 8.4 23.3 27.7 38.7 29.0 22.7 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 192 204 241 252 275 216 271 346 295 261 246 175 261 VECTOR WIND MAGNITUDE(KNOTS) 1.4 3.5 2.9 2.4 2.3 1.4 1.0 6.1 2.8 2.1 1.4 1.4 1.5 WIND STEADINESES (MEAN %) 38.9 70.0 52.7 46.2 48.9 28.6 20.4 72.6 52.8 48.8 42.4 31.8 30.0 WIND SPEED (MEAN KNOTS) 3.6 5.0 5.5 5.2 4.7 4.9 4.9 8.4 5.3 4.3 3.3 4.4 5.0 FASTEST WIND DIRECTION 230 220 230 310 310 160 160 340 330 270 310 150 230 FASTEST WIND SPEED (KNOTS) 14 19 23 19 19 19 23 19 19 19 16 19 23 DAY 17 2 24 8 2 23 22 11 17 13 19 19 DAYS WITH SKY CLEAR (0-2)/8 11 24 11 24 17 29 24 29 30 31 21 15 266 DAYS WITH P.CLOUDY (3-6)/8 14 3 11 4 13 1 7 2 0 0 8 7 70 DAYS WITH CLOUDY (7-8)/8 6 1 9 2 1 0 0 0 0 0 1 9 29 DAYS WITH VISIBILITY =< 2 KM 1 0 0 0 1 0 1 0 0 0 0 0 3 DURATION OF SUNSHINE HOURS 202.9 271.8 215.9 300.1 315.3 344.5 314.7 345.2 323.4 314.3 260.4 203.4 3411.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 827.7 824.5 826.5 824.8 824.8 821.1 820.2 823.0 825.8 828.5 829.6 828.1 825.4 MAX. QFE PRESSURE IN HPA 833.2 829.8 832.7 831.5 830.2 825.2 823.8 828.3 831.6 833.2 834.2 833.4 834.2 DAY-HOUR 13- 6 12- 6 6- 6 21- 6 12-15 6- 6 16- 6 30- 6 30- 6 26- 6 1- 6 22- 6 MIN. QFE PRESSURE IN HPA 823.3 817.5 819.4 819.8 820.4 816.7 816.1 818.6 820.7 823.6 824.4 821.3 816.1 DAY-HOUR 2-12 16-12 30-12 8-12 28-15 19-15 26-15 6-12 6-15 9-12 7-12 5-15 MEAN QNH PRESSURE IN HPA 1020.9 1017.1 1019.5 1017.5 1017.4 1013.1 1012.0 1015.3 1018.6 1021.9 1023.2 1021.4 1018.2 MAX. QNH PRESSURE IN HPA 1027.4 1023.4 1026.8 1025.4 1023.9 1017.9 1016.3 1021.6 1025.5 1027.4 1028.6 1027.7 1028.6 DAY-HOUR 13- 6 12- 6 6- 6 21- 6 12-15 6- 6 16- 6 30- 6 30- 6 26- 6 1- 6 22- 6 MIN. QNH PRESSURE IN HPA 1015.7 1008.8 1011.1 1011.5 1012.2 1007.9 1007.2 1010.1 1012.6 1016.0 1017.0 1013.3 1007.2 DAY-HOUR 2-12 16-12 30-12 8-12 28-15 19-15 26-15 6-12 6-15 9-12 7-12 5-15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 828.0 824.8 826.7 825.4 825.2 821.8 821.1 823.8 826.2 828.9 829.9 828.3 825.8 MAX. QFE PRESSURE IN HPA 832.2 828.5 831.3 830.2 829.3 824.3 823.2 827.1 829.8 832.1 832.7 831.7 832.7 DAY 14 12 6 21 12 6 16 30 30 20 1 8 MIN. QFE PRESSURE IN HPA 825.5 819.6 822.2 821.1 823.0 819.3 818.8 821.1 822.7 826.0 826.3 824.0 818.8 DAY 2 17 25 8 29 30 26 6 6 9 7 28 MEAN QNH PRESSURE IN HPA 1021.3 1017.5 1019.7 1018.2 1017.9 1013.9 1013.1 1016.3 1019.1 1022.3 1023.5 1021.6 1018.7 MAX. QNH PRESSURE IN HPA 1026.2 1021.9 1025.2 1023.9 1022.8 1016.9 1015.6 1020.2 1023.4 1026.1 1026.8 1025.6 1026.8 DAY 14 12 6 21 12 6 16 30 30 20 1 8 MIN. QNH PRESSURE IN HPA 1018.3 1011.3 1014.4 1013.1 1015.3 1010.9 1010.4 1013.1 1015.0 1018.9 1019.2 1016.5 1010.4 DAY 2 17 25 8 29 30 26 6 6 9 7 28 MEAN QFF PRESSURE IN HPA 1019.0 1014.4 1013.6 1009.1 1005.4 997.4 995.1 1001.2 1006.3 1013.0 1018.9 1020.4 1009.5 MAX. QFF PRESSURE IN HPA 1024.1 1021.5 1022.8 1015.2 1013.4 1000.6 998.6 1007.6 1012.0 1018.3 1024.2 1028.3 1028.3 DAY 14 20 6 9 13 1 16 13 30 31 17 8 MIN. QFF PRESSURE IN HPA 1014.3 1007.4 1003.2 1005.1 1000.9 990.9 989.8 995.6 999.3 1007.4 1012.4 1011.5 989.8 DAY 20 16 25 25 31 30 26 5 7 3 7 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 828.9 825.9 828.0 826.3 826.1 822.6 821.6 824.5 827.5 830.2 831.2 829.4 826.9 MAX. QFE PRESSURE IN HPA 833.2 829.8 832.7 831.5 829.8 825.2 823.8 828.3 831.6 833.2 834.2 833.4 834.2 DAY 13 12 6 21 12 6 16 30 30 26 1 22 MIN. QFE PRESSURE IN HPA 826.4 820.9 822.5 821.5 823.8 820.0 819.2 821.6 823.8 826.9 827.8 824.2 819.2 DAY 2 17 31 8 29 12 26 6 6 11 7 27 MEAN QNH PRESSURE IN HPA 1022.3 1018.8 1021.2 1019.3 1019.0 1014.8 1013.6 1017.2 1020.6 1023.9 1025.1 1023.0 1019.9 MAX. QNH PRESSURE IN HPA 1027.4 1023.4 1026.8 1025.4 1023.4 1017.9 1016.3 1021.6 1025.5 1027.4 1028.6 1027.7 1028.6 DAY 13 12 6 21 12 6 16 30 30 26 1 22 MIN. QNH PRESSURE IN HPA 1019.4 1012.8 1014.7 1013.6 1016.3 1011.8 1010.8 1013.7 1016.3 1020.0 1021.0 1016.8 1010.8 DAY 2 17 31 8 29 12 26 6 6 11 7 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 828.1 825.3 827.3 825.5 825.4 821.7 820.5 823.4 826.4 829.1 830.0 828.3 825.9 MAX. QFE PRESSURE IN HPA 832.6 829.3 831.6 831.0 829.6 824.4 822.6 827.0 830.2 832.4 832.8 832.2 832.8 DAY 14 19 6 21 12 6 16 30 30 26 1 22 MIN. QFE PRESSURE IN HPA 824.2 820.1 821.6 820.6 822.8 819.1 818.0 820.2 822.9 825.8 826.4 822.9 818.0 DAY 2 17 30 8 28 12 26 6 6 11 7 27 MEAN QNH PRESSURE IN HPA 1021.4 1018.0 1020.4 1018.3 1018.1 1013.8 1012.4 1015.8 1019.3 1022.6 1023.7 1021.6 1018.8 MAX. QNH PRESSURE IN HPA 1026.7 1022.8 1025.5 1024.8 1023.2 1017.0 1014.9 1020.1 1023.9 1026.5 1027.0 1026.2 1027.0 DAY 14 19 6 21 12 6 16 30 30 26 1 22 MIN. QNH PRESSURE IN HPA 1016.8 1011.9 1013.7 1012.5 1015.1 1010.7 1009.4 1012.0 1015.2 1018.7 1019.4 1015.2 1009.4 DAY 2 17 30 8 28 12 26 6 6 11 7 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 826.6 823.2 825.4 823.5 823.7 820.1 819.0 821.7 824.5 827.3 828.3 827.0 824.2 MAX. QFE PRESSURE IN HPA 830.4 827.4 829.2 828.9 828.0 823.2 821.6 826.0 828.5 830.1 831.1 831.0 831.1 DAY 13 19 12 21 12 6 16 30 22 20 17 22 MIN. QFE PRESSURE IN HPA 823.3 817.5 819.4 819.8 821.2 817.4 816.7 818.6 821.1 823.6 824.4 822.1 816.7 DAY 2 16 30 8 28 19 26 6 6 9 7 5 MEAN QNH PRESSURE IN HPA 1019.5 1015.6 1018.1 1016.0 1016.1 1011.9 1010.6 1013.8 1017.2 1020.4 1021.6 1020.1 1016.7 MAX. QNH PRESSURE IN HPA 1024.1 1020.6 1022.7 1022.3 1021.3 1015.6 1013.7 1018.9 1021.9 1023.7 1024.9 1024.8 1024.9 DAY 13 19 12 21 12 6 16 30 22 20 17 22 MIN. QNH PRESSURE IN HPA 1015.7 1008.8 1011.1 1011.5 1013.2 1008.7 1007.9 1010.1 1013.1 1016.0 1017.0 1014.3 1007.9 DAY 2 16 30 8 28 19 26 6 6 9 7 5 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 827.1 823.5 825.3 823.4 823.5 819.5 818.8 821.6 824.4 827.3 828.6 827.7 824.2 MAX. QFE PRESSURE IN HPA 831.6 827.8 828.8 828.5 830.2 822.3 821.6 825.6 828.5 830.0 831.5 831.9 831.9 DAY 13 19 9 21 12 6 16 30 22 31 17 22 MIN. QFE PRESSURE IN HPA 824.6 818.1 820.6 820.1 820.4 816.7 816.1 818.8 820.7 823.6 824.7 821.3 816.1 DAY 17 16 26 7 28 19 26 6 6 11 7 5 MEAN QNH PRESSURE IN HPA 1020.2 1016.0 1018.1 1015.8 1015.9 1011.2 1010.4 1013.7 1017.0 1020.4 1022.0 1020.9 1016.8 MAX. QNH PRESSURE IN HPA 1025.5 1021.0 1022.2 1021.9 1023.9 1014.5 1013.7 1018.4 1021.9 1023.6 1025.4 1025.9 1025.9 DAY 13 19 9 21 12 6 16 30 22 31 17 22 MIN. QNH PRESSURE IN HPA 1017.2 1009.5 1012.5 1011.9 1012.2 1007.9 1007.2 1010.4 1012.6 1016.0 1017.3 1013.3 1007.2 DAY 17 16 26 7 28 19 26 6 6 11 7 5 MEAN QFF PRESSURE IN HPA 1017.8 1012.7 1011.8 1006.5 1003.2 994.2 992.2 998.4 1003.9 1011.0 1017.3 1019.8 1007.4 MAX. QFF PRESSURE IN HPA 1023.2 1020.5 1020.2 1010.6 1014.6 997.5 996.7 1004.9 1009.3 1018.0 1023.2 1028.3 1028.3 DAY 13 19 11 12 12 14 22 30 22 31 17 31 MIN. QFF PRESSURE IN HPA 1012.9 1005.0 1003.3 1003.0 997.7 988.5 986.8 992.9 997.5 1004.1 1010.1 1010.6 986.8 DAY 19 16 24 25 31 30 26 2 7 3 6 5 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.6 8.0 11.7 16.9 22.5 27.6 28.0 25.6 21.5 18.9 11.0 4.1 16.9 MINIMUN AIR TEMPERATURE (C) -2.2 0.3 4.6 9.5 13.7 17.9 19.2 16.6 11.6 9.5 4.1 -1.3 8.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 6 8 1 0 0 0 0 15 DAYS WITH MINIMUM TEMP. <=-4 13 3 0 0 0 0 0 0 0 0 2 7 25 DAYS WITH FREEZING MIN.<= 0 21 11 4 0 0 0 0 0 0 0 3 21 60 TEMPERATURE RECORDS LOWEST(C) -8.0 -5.6 -3.0 5.6 7.6 11.8 15.0 12.6 8.0 6.0 -5.8 -11.0 -11.0 DAY 22 17 17 2 1 6 6 11 12 26 16 14 MAXIMUM AIR TEMPERATURE (C) 12.9 13.6 16.6 24.0 30.5 35.6 35.4 33.8 30.1 27.6 18.6 11.2 24.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 19 30 31 31 15 11 0 0 137 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 17.0 19.0 20.5 28.5 34.5 39.8 37.5 36.5 33.6 31.8 23.5 19.0 39.8 DAY 15 23 5 19 25 25 21 1 27 8 2 30 DIF. BETWEEN (MAX.-MIN.) (C) 15.1 13.3 12.0 14.5 16.8 17.7 16.2 17.2 18.5 18.1 14.5 12.5 15.6 MEAN DAILY TEMP. (MDT) (C) 5.4 7.0 10.6 16.8 22.1 26.8 27.3 25.2 20.8 18.5 11.4 4.9 16.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 54.9 173.7 195.0 130.2 16.7 2.4 0.0 0.0 573.1 HEATING DEG. DAYS(BASE 18 0C) 391.3 308.6 228.3 46.0 3.6 0.0 0.0 0.0 0.0 19.3 198.7 404.6 1600.4 DEWPOINT (MEAN C) -8.7 -5.3 -1.9 2.2 2.5 3.8 2.5 1.1 -4.4 0.1 -3.0 -3.6 -1.2 MIXING RATIO (G/KG) 2.58 3.32 4.32 5.65 5.80 6.31 5.83 5.29 3.62 4.77 4.05 3.88 4.62 VAPOUR PRESSURE (HPA) 3.42 4.37 5.68 7.43 7.62 8.23 7.63 6.94 4.78 6.32 5.35 5.13 6.07 SATURATION DEF. (HPA) 6.94 6.91 8.56 12.61 21.22 30.66 31.59 27.47 22.33 16.83 8.55 3.64 16.44 RELATIVE HUMIDITY (MEAN %) 37 44 44 43 30 24 21 22 19 30 43 62 35 RELATIVE HUMIDITY (MAX. %) 59 71 70 69 50 40 31 33 31 44 67 81 54 RELATIVE HUMIDITY (MIN. %) 20 26 27 22 17 15 13 14 12 20 24 40 21 RELATIVE HUMIDITY (MEAN% 03UTC) 57 71 68 65 46 38 28 31 30 44 60 74 51 RELATIVE HUMIDITY (MEAN% 09UTC) 29 34 34 27 21 16 16 16 14 23 29 51 26 RELATIVE HUMIDITY (MEAN% 15UTC) 33 35 37 30 22 18 16 17 14 25 36 57 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 4.7 14.5 25.2 21.0 5.0 0.2 0.0 0.0 0.0 0.0 6.8 146.1 223.5 DAYS WITH PRECIPITATION >=10 0 1 1 1 0 0 0 0 0 0 0 6 9 DAYS WITH PRECIPITATION >= 5 0 1 2 1 0 0 0 0 0 0 1 7 12 DAYS WITH PRECIPITATION >= 1 1 2 5 5 2 0 0 0 0 0 1 8 24 DAYS WITH PRECIPITATION 3 4 7 7 2 1 0 0 0 0 5 8 37 GREATEST DAILY PRECIPITATION 4.0 11.0 13.0 10.0 4.0 0.2 0.0 0.0 0.0 0.0 5.6 30.1 30.1 DAY 27 26 8 1 12 5 ** ** ** ** 23 1 DAY WITH THUNDER STORM 0 0 1 4 1 0 0 0 0 0 0 0 6 DAYS WITH SNOW OR SLEET 0 1 0 0 0 0 0 0 0 0 0 1 2 DAYS WITH DUST 2 2 5 1 6 1 3 3 1 0 4 2 30 WIND DIRECTION (PREVAILING) 135 135 225 225 270 225 360 360 45 135 135 135 135 PREVAILING WIND SPEED(KNOTS) 5.7 6.5 7.7 7.2 6.4 8.0 8.7 8.6 6.0 4.9 5.0 7.8 5.9 PREVAILING WIND PERCENT 24.5 22.1 23.2 18.3 16.5 16.7 22.2 26.6 20.8 7.7 21.5 18.1 11.8 CALMS PERCENT OF WIND 39.4 37.1 30.3 29.2 26.2 29.2 16.1 22.6 24.6 57.7 50.2 61.7 35.3 NO. OF WIND OBSERVATION 155 140 155 240 248 240 248 248 240 248 237 243 2642 VECTOR WIND DIRECTION (MEAN) 181 188 227 218 268 251 353 359 349 204 178 165 278 VECTOR WIND MAGNITUDE(KNOTS) 1.1 1.8 2.4 1.6 1.8 1.4 3.2 3.9 2.8 0.3 1.2 1.1 0.6 WIND STEADINESES (MEAN %) 29.7 46.2 53.3 38.1 37.5 29.8 53.3 68.4 56.0 14.3 44.4 42.3 14.3 WIND SPEED (MEAN KNOTS) 3.7 3.9 4.5 4.2 4.8 4.7 6.0 5.7 5.0 2.1 2.7 2.6 4.2 FASTEST WIND DIRECTION 210 210 230 180 230 150 340 30 360 270 300 150 30 FASTEST WIND SPEED (KNOTS) 19 19 19 19 19 21 21 27 19 10 17 19 27 DAY 20 1 19 10 4 5 5 7 7 1 14 20 DAYS WITH SKY CLEAR (0-2)/8 23 15 12 10 19 28 28 29 29 29 18 16 256 DAYS WITH P.CLOUDY (3-6)/8 6 11 13 14 10 2 3 2 1 2 5 7 76 DAYS WITH CLOUDY (7-8)/8 2 2 6 6 2 0 0 0 0 0 7 8 33 DAYS WITH VISIBILITY =< 2 KM 1 0 0 0 0 0 0 0 0 0 0 1 2 DURATION OF SUNSHINE HOURS 261.9 219.5 239.1 242.1 314.8 353.1 350.1 341.8 322.4 306.2 212.3 202.8 3366.1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 827.5 825.0 824.5 825.6 826.4 820.6 821.7 823.4 827.5 830.1 828.9 828.5 825.8 MAX. QFE PRESSURE IN HPA 833.7 832.1 831.0 831.9 830.3 829.1 825.3 827.8 833.0 835.7 834.1 833.9 835.7 DAY-HOUR 3- 6 22- 6 28- 6 4-18 19- 6 2- 6 31- 6 24- 6 22- 6 20- 6 16- 6 23- 6 MIN. QFE PRESSURE IN HPA 817.1 818.4 818.5 820.4 822.0 815.8 817.5 818.4 823.3 825.8 822.7 822.8 815.8 DAY-HOUR 20-12 1-12 11-12 30-15 11-15 20-12 21-15 5-15 5-12 1- 0 7-12 20-12 MEAN QNH PRESSURE IN HPA 1020.7 1017.8 1017.1 1018.4 1019.4 1012.4 1013.8 1015.8 1020.6 1023.8 1022.3 1021.8 1018.7 MAX. QNH PRESSURE IN HPA 1028.0 1026.1 1024.8 1025.9 1024.0 1022.6 1018.1 1021.0 1027.2 1030.4 1028.5 1028.3 1030.4 DAY-HOUR 3- 6 22- 6 28- 6 4-18 19- 6 2- 6 31- 6 24- 6 22- 6 20- 6 16- 6 23- 6 MIN. QNH PRESSURE IN HPA 1008.3 1009.9 1010.0 1012.2 1014.1 1006.8 1008.8 1009.9 1015.7 1018.7 1015.0 1015.1 1006.8 DAY-HOUR 20-12 1-12 11-12 30-15 11-15 20-12 21-15 5-15 5-12 1- 0 7-12 20-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1008.4 1005.6 995.2 996.4 999.9 1007.8 1012.7 1016.6 1021.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1016.2 1010.9 1007.9 1001.6 1006.5 1014.3 1020.0 1029.3 1030.8 ****** DAY-HOUR **-** **-** **-** 15- 6 8- 6 6- 3 31- 3 29- 6 22- 6 20- 3 16- 3 8- 3 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1002.0 999.9 986.9 990.4 992.8 1002.0 1005.6 1006.8 1009.5 ****** DAY-HOUR **-** **-** **-** 29-12 31-12 27-12 21-12 5-15 4-12 1- 0 7-12 20-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** 825.4 826.0 820.6 821.6 823.3 827.2 829.9 828.8 828.1 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 830.5 828.3 827.8 823.5 826.1 831.3 834.0 832.7 831.8 ****** DAY ** ** ** 5 19 2 16 30 23 21 16 24 MIN. QFE PRESSURE IN HPA ****** ****** ****** 821.7 823.8 816.8 818.7 819.6 824.0 825.8 824.2 825.0 ****** DAY ** ** ** 30 1 21 1 6 6 1 7 6 MEAN QNH PRESSURE IN HPA ****** ****** ****** 1018.1 1018.9 1012.5 1013.7 1015.7 1020.3 1023.5 1022.2 1021.4 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1024.2 1021.6 1021.0 1015.9 1019.0 1025.2 1028.4 1026.8 1025.8 ****** DAY ** ** ** 5 19 2 16 30 23 21 16 24 MIN. QNH PRESSURE IN HPA ****** ****** ****** 1013.8 1016.3 1008.0 1010.2 1011.3 1016.5 1018.7 1016.8 1017.7 ****** DAY ** ** ** 30 1 21 1 6 6 1 7 6 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1008.0 1005.3 995.6 996.4 999.6 1007.2 1011.9 1015.8 1020.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1013.3 1008.8 1006.1 999.5 1004.2 1011.2 1017.2 1025.4 1029.2 ****** DAY ** ** ** 5 2 2 16 30 23 21 16 8 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1003.1 1000.9 988.0 992.8 993.0 1003.1 1005.6 1008.4 1011.9 ****** DAY ** ** ** 26 31 29 22 6 4 1 7 1 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 827.8 825.4 824.7 826.0 827.0 821.5 822.6 824.3 828.3 830.8 829.2 828.8 826.4 MAX. QFE PRESSURE IN HPA 831.8 830.2 830.5 830.8 829.5 828.4 825.0 826.8 832.2 834.6 832.9 832.8 834.6 DAY 3 22 28 5 19 2 31 24 23 20 16 23 MIN. QFE PRESSURE IN HPA 820.5 820.9 820.6 822.6 824.3 817.4 819.8 820.9 825.1 826.6 824.8 825.6 817.4 DAY 20 2 12 30 11 21 19 5 6 1 7 5 MEAN QNH PRESSURE IN HPA 1021.0 1018.2 1017.3 1018.9 1020.1 1013.5 1014.8 1016.9 1021.6 1024.6 1022.7 1022.2 1019.3 MAX. QNH PRESSURE IN HPA 1025.8 1023.9 1024.2 1024.6 1023.0 1021.7 1017.7 1019.8 1026.2 1029.1 1027.1 1027.0 1029.1 DAY 3 22 28 5 19 2 31 24 23 20 16 23 MIN. QNH PRESSURE IN HPA 1012.4 1012.8 1012.5 1014.9 1016.9 1008.7 1011.5 1012.8 1017.8 1019.6 1017.5 1018.4 1008.7 DAY 20 2 12 30 11 21 19 5 6 1 7 5 MEAN QFF PRESSURE IN HPA 1021.4 1016.7 1012.6 1009.9 1007.1 997.1 998.0 1001.9 1010.1 1015.2 1018.5 1022.8 1010.9 MAX. QFF PRESSURE IN HPA 1030.2 1024.4 1021.6 1015.8 1010.6 1007.9 1001.6 1005.8 1013.6 1020.0 1029.3 1030.8 1030.8 DAY 1 21 28 15 2 6 31 30 23 20 16 8 MIN. QFF PRESSURE IN HPA 1010.2 1010.8 1007.1 1005.4 1002.3 990.0 994.1 995.5 1006.3 1009.0 1012.1 1013.3 990.0 DAY 20 1 16 30 31 27 21 6 6 1 7 2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 829.3 826.5 825.9 826.8 827.7 821.8 823.0 824.7 829.2 831.9 830.2 829.8 827.2 MAX. QFE PRESSURE IN HPA 833.7 832.1 831.0 831.6 830.3 829.1 825.3 827.8 833.0 835.7 834.1 833.9 835.7 DAY 3 22 28 5 19 2 31 24 22 20 16 23 MIN. QFE PRESSURE IN HPA 821.6 821.6 821.9 822.9 825.0 818.1 820.1 821.3 826.2 827.7 825.5 826.2 818.1 DAY 20 16 11 30 11 21 19 5 5 1 7 2 MEAN QNH PRESSURE IN HPA 1022.8 1019.5 1018.7 1019.8 1020.9 1013.9 1015.4 1017.4 1022.6 1025.8 1023.9 1023.4 1020.3 MAX. QNH PRESSURE IN HPA 1028.0 1026.1 1024.8 1025.5 1024.0 1022.6 1018.1 1021.0 1027.2 1030.4 1028.5 1028.3 1030.4 DAY 3 22 28 5 19 2 31 24 22 20 16 23 MIN. QNH PRESSURE IN HPA 1013.7 1013.7 1014.0 1015.2 1017.7 1009.5 1011.9 1013.3 1019.1 1020.9 1018.3 1019.1 1009.5 DAY 20 16 11 30 11 21 19 5 5 1 7 2 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1009.5 1007.1 996.4 997.7 1001.3 1009.7 1014.5 1018.2 1023.2 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1016.2 1010.9 1007.0 1001.2 1006.5 1014.3 1019.5 1027.1 1029.5 ****** DAY ** ** ** 15 8 2 31 29 22 20 15 8 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1005.2 1001.9 989.3 994.4 995.3 1006.5 1007.9 1011.2 1013.3 ****** DAY ** ** ** 30 31 27 22 5 30 1 7 2 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 827.6 825.5 825.0 825.9 826.8 820.9 822.0 823.5 827.8 830.4 828.9 828.6 826.1 MAX. QFE PRESSURE IN HPA 831.9 830.5 830.2 830.6 829.4 828.4 824.4 826.4 831.5 834.5 832.6 832.9 834.5 DAY 3 22 28 15 19 2 31 24 22 20 16 23 MIN. QFE PRESSURE IN HPA 819.5 820.2 820.6 822.0 824.0 817.4 818.9 820.0 825.1 826.8 824.0 825.1 817.4 DAY 20 16 11 30 10 20 19 5 5 1 7 2 MEAN QNH PRESSURE IN HPA 1020.8 1018.3 1017.6 1018.8 1019.9 1012.8 1014.1 1015.9 1021.0 1024.1 1022.3 1022.0 1019.0 MAX. QNH PRESSURE IN HPA 1025.9 1024.2 1023.9 1024.3 1022.9 1021.7 1017.0 1019.4 1025.4 1029.0 1026.7 1027.1 1029.0 DAY 3 22 28 15 19 2 31 24 22 20 16 23 MIN. QNH PRESSURE IN HPA 1011.2 1012.0 1012.5 1014.1 1016.5 1008.7 1010.5 1011.8 1017.8 1019.8 1016.5 1017.8 1008.7 DAY 20 16 11 30 10 20 19 5 5 1 7 2 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1008.4 1005.6 995.1 996.2 999.3 1007.3 1011.9 1015.9 1020.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1015.3 1009.8 1005.5 1000.0 1003.0 1011.3 1016.7 1025.1 1026.8 ****** DAY ** ** ** 15 8 2 31 29 22 20 16 8 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1004.1 1000.3 987.9 992.4 993.7 1004.1 1007.0 1008.4 1011.5 ****** DAY ** ** ** 30 31 27 21 5 6 1 7 2 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 826.1 823.8 823.3 824.3 825.4 819.5 820.6 822.0 826.1 828.8 827.7 827.4 824.6 MAX. QFE PRESSURE IN HPA 830.4 828.5 828.9 828.8 828.0 826.5 823.1 824.9 830.2 832.7 831.3 831.4 832.7 DAY 3 22 27 15 20 2 31 29 22 20 15 23 MIN. QFE PRESSURE IN HPA 817.1 818.4 818.5 820.7 822.4 815.8 817.6 818.9 823.3 825.8 822.7 822.8 815.8 DAY 20 1 11 30 11 20 19 5 5 1 7 20 MEAN QNH PRESSURE IN HPA 1019.1 1016.2 1015.7 1016.9 1018.2 1011.2 1012.5 1014.2 1019.0 1022.2 1020.9 1020.6 1017.2 MAX. QNH PRESSURE IN HPA 1024.1 1021.9 1022.3 1022.2 1021.3 1019.5 1015.5 1017.6 1023.9 1026.8 1025.2 1025.3 1026.8 DAY 3 22 27 15 20 2 31 29 22 20 15 23 MIN. QNH PRESSURE IN HPA 1008.3 1009.9 1010.0 1012.6 1014.6 1006.8 1008.9 1010.5 1015.7 1018.7 1015.0 1015.1 1006.8 DAY 20 1 11 30 11 20 19 5 5 1 7 20 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1006.9 1004.5 994.0 995.1 998.1 1005.8 1010.5 1014.7 1019.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1012.8 1007.7 1004.4 998.5 1002.2 1010.3 1014.6 1023.1 1026.3 ****** DAY ** ** ** 15 5 2 31 29 22 20 15 7 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1002.0 999.9 986.9 990.4 993.3 1002.0 1005.9 1006.8 1009.5 ****** DAY ** ** ** 29 31 27 21 5 4 1 7 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 826.7 824.1 823.6 824.6 825.3 819.3 820.5 822.2 826.4 829.1 828.4 828.1 824.9 MAX. QFE PRESSURE IN HPA 831.1 828.6 829.3 830.2 827.7 826.8 823.1 824.9 830.5 832.9 832.2 832.7 832.9 DAY 3 22 27 4 19 2 31 29 22 20 15 23 MIN. QFE PRESSURE IN HPA 817.3 819.8 818.7 820.4 822.0 815.9 817.5 818.4 823.6 826.1 823.7 822.8 815.9 DAY 20 1 11 30 11 24 21 5 5 1 7 20 MEAN QNH PRESSURE IN HPA 1019.7 1016.7 1016.0 1017.3 1018.1 1010.9 1012.3 1014.4 1019.3 1022.6 1021.7 1021.4 1017.5 MAX. QNH PRESSURE IN HPA 1024.9 1022.0 1022.8 1023.9 1020.9 1019.8 1015.5 1017.6 1024.2 1027.1 1026.2 1026.8 1027.1 DAY 3 22 27 4 19 2 31 29 22 20 15 23 MIN. QNH PRESSURE IN HPA 1008.6 1011.5 1010.2 1012.2 1014.1 1006.9 1008.8 1009.9 1016.0 1019.0 1016.2 1015.1 1006.9 DAY 20 1 11 30 11 24 21 5 5 1 7 20 MEAN QFF PRESSURE IN HPA 1019.9 1015.1 1011.4 1008.2 1005.0 994.4 995.4 999.4 1007.7 1013.1 1017.5 1022.1 1009.1 MAX. QFF PRESSURE IN HPA 1028.0 1020.8 1019.4 1013.7 1009.0 1005.9 999.0 1003.6 1012.0 1017.6 1028.2 1028.1 1028.2 DAY 1 21 27 15 8 2 31 31 22 20 15 7 MIN. QFF PRESSURE IN HPA 1007.1 1008.8 1004.7 1003.0 1000.3 987.0 991.0 992.8 1004.2 1008.5 1010.9 1010.6 987.0 DAY 20 7 19 30 31 28 21 5 5 1 7 20 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** 825.8 826.5 820.4 821.8 823.6 827.4 830.1 829.2 828.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 831.9 829.0 827.8 824.0 826.5 831.6 833.5 833.0 832.9 ****** DAY ** ** ** 4 19 1 31 31 22 20 28 23 MIN. QFE PRESSURE IN HPA ****** ****** ****** 822.1 823.9 816.5 819.2 819.7 824.6 827.8 825.1 824.0 ****** DAY ** ** ** 29 11 28 19 5 5 1 6 20 MEAN QNH PRESSURE IN HPA ****** ****** ****** 1018.6 1019.5 1012.3 1013.9 1016.1 1020.6 1023.8 1022.7 1022.1 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1025.9 1022.4 1021.0 1016.5 1019.5 1025.5 1027.8 1027.2 1027.1 ****** DAY ** ** ** 4 19 1 31 31 22 20 28 23 MIN. QNH PRESSURE IN HPA ****** ****** ****** 1014.3 1016.4 1007.6 1010.8 1011.4 1017.2 1021.0 1017.8 1016.5 ****** DAY ** ** ** 29 11 28 19 5 5 1 6 20 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1008.3 1005.5 994.8 996.3 1000.2 1007.7 1012.6 1016.9 1021.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1013.8 1010.6 1005.3 999.8 1005.3 1011.6 1016.7 1026.0 1029.6 ****** DAY ** ** ** 4 12 1 31 31 22 20 15 7 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1003.6 1000.8 987.4 992.3 992.9 1005.0 1008.1 1011.5 1012.4 ****** DAY ** ** ** 25 30 28 21 5 5 1 13 20 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** 825.7 826.4 820.6 822.0 823.8 827.4 830.2 829.0 828.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 831.7 828.7 827.8 824.5 827.1 831.6 834.0 833.0 832.4 ****** DAY ** ** ** 4 19 1 31 31 22 20 28 23 MIN. QFE PRESSURE IN HPA ****** ****** ****** 822.1 824.0 817.2 819.6 820.3 824.6 828.0 824.6 824.5 ****** DAY ** ** ** 25 11 24 18 5 5 17 6 5 MEAN QNH PRESSURE IN HPA ****** ****** ****** 1018.5 1019.4 1012.5 1014.1 1016.3 1020.6 1023.9 1022.4 1021.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1025.6 1022.1 1021.0 1017.1 1020.2 1025.5 1028.4 1027.2 1026.5 ****** DAY ** ** ** 4 19 1 31 31 22 20 28 23 MIN. QNH PRESSURE IN HPA ****** ****** ****** 1014.3 1016.5 1008.5 1011.3 1012.1 1017.2 1021.3 1017.2 1017.1 ****** DAY ** ** ** 25 11 24 18 5 5 17 6 5 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1008.0 1005.1 994.7 996.3 999.8 1007.0 1011.8 1015.8 1020.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1014.1 1008.7 1005.0 999.5 1005.3 1011.0 1016.8 1024.8 1029.0 ****** DAY ** ** ** 4 7 1 30 31 22 20 15 7 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1003.3 1000.2 987.4 992.1 993.1 1003.7 1007.5 1008.8 1011.4 ****** DAY ** ** ** 25 30 25 21 5 5 1 6 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.6 8.9 11.5 17.8 23.5 29.0 30.5 29.4 27.4 18.6 14.0 8.2 18.7 MINIMUN AIR TEMPERATURE (C) -2.8 0.5 4.9 8.8 14.2 16.7 19.4 18.5 16.4 7.5 1.4 -1.7 8.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 3 9 5 3 0 0 0 20 DAYS WITH MINIMUM TEMP. <=-4 15 4 0 0 0 0 0 0 0 0 1 10 30 DAYS WITH FREEZING MIN.<= 0 26 14 0 0 0 0 0 0 0 1 11 20 72 TEMPERATURE RECORDS LOWEST(C) -7.6 -5.4 0.2 2.6 9.5 10.0 14.0 14.5 11.0 0.0 -5.0 -12.0 -12.0 DAY 13 23 25 1 8 2 16 22 20 17 27 3 MAXIMUM AIR TEMPERATURE (C) 15.8 17.9 18.8 26.5 31.9 35.7 36.6 35.8 34.3 25.8 22.1 17.6 26.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 11 28 29 31 31 29 9 0 0 168 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.5 22.5 22.5 33.0 34.0 39.0 39.5 37.0 38.0 31.5 26.5 24.5 39.5 DAY 26 2 6 27 27 9 25 19 6 1 7 19 DIF. BETWEEN (MAX.-MIN.) (C) 18.6 17.4 13.9 17.7 17.7 19.0 17.2 17.3 17.9 18.3 20.7 19.3 17.9 MEAN DAILY TEMP. (MDT) (C) 6.5 9.2 11.8 17.6 23.0 26.2 28.0 27.1 25.4 16.6 11.8 8.0 17.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 6.3 65.8 157.7 218.0 189.7 131.3 2.5 0.0 0.0 771.5 HEATING DEG. DAYS(BASE 18 0C) 356.6 246.2 191.8 53.3 0.0 0.0 0.0 0.0 0.0 70.1 187.2 310.8 1416.0 DEWPOINT (MEAN C) -8.9 -6.4 -1.1 0.2 2.9 1.2 6.2 6.2 2.0 -2.2 -7.0 -9.5 -1.4 MIXING RATIO (G/KG) 2.47 3.08 4.55 4.91 5.88 5.41 7.58 7.57 5.52 4.24 2.90 2.50 4.72 VAPOUR PRESSURE (HPA) 3.28 4.07 5.98 6.48 7.73 7.08 9.89 9.88 7.26 5.60 3.85 3.32 6.20 SATURATION DEF. (HPA) 6.59 8.10 8.09 15.42 22.80 34.95 35.35 32.62 31.23 17.48 13.59 8.50 19.56 RELATIVE HUMIDITY (MEAN %) 39 37 47 35 28 19 24 26 21 28 26 31 30 RELATIVE HUMIDITY (MAX. %) 63 61 74 59 44 35 37 40 36 48 43 48 49 RELATIVE HUMIDITY (MIN. %) 17 20 25 17 17 12 17 17 13 16 15 16 17 RELATIVE HUMIDITY (MEAN% 03UTC) 60 59 70 57 44 35 37 40 36 47 43 43 48 RELATIVE HUMIDITY (MEAN% 09UTC) 25 25 32 21 20 14 19 20 16 21 19 21 21 RELATIVE HUMIDITY (MEAN% 15UTC) 28 29 36 24 22 14 20 20 16 24 24 26 24 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 0.0 3.0 25.8 3.3 3.0 1.0 0.1 0.0 0.0 0.9 0.0 0.6 37.7 DAYS WITH PRECIPITATION >=10 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH PRECIPITATION >= 5 0 0 2 0 0 0 0 0 0 0 0 0 2 DAYS WITH PRECIPITATION >= 1 0 1 5 2 1 0 0 0 0 0 0 0 9 DAYS WITH PRECIPITATION 0 1 8 2 1 1 1 0 0 2 0 1 17 GREATEST DAILY PRECIPITATION 0.0 3.0 11.5 2.0 3.0 1.0 0.1 0.0 0.0 0.8 0.0 0.6 11.5 DAY ** 18 30 4 31 1 28 ** ** 21 ** 29 DAY WITH THUNDER STORM 0 0 0 0 1 1 0 0 0 1 0 0 3 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 1 2 7 4 2 0 6 3 1 2 0 0 28 WIND DIRECTION (PREVAILING) 135 135 225 225 270 270 315 360 270 270 270 135 225 PREVAILING WIND SPEED(KNOTS) 6.1 6.9 11.3 8.1 8.6 6.0 9.3 11.0 5.6 5.8 4.7 6.4 7.9 PREVAILING WIND PERCENT 12.1 19.6 24.2 16.3 14.3 18.8 17.4 21.3 18.0 19.4 11.3 17.6 12.3 CALMS PERCENT OF WIND 60.9 41.1 35.5 45.4 30.0 23.8 21.3 21.3 30.7 36.8 55.3 62.2 40.3 NO. OF WIND OBSERVATION 248 224 248 240 217 160 155 155 150 155 150 238 2340 VECTOR WIND DIRECTION (MEAN) 192 186 203 243 260 312 323 334 242 291 257 174 262 VECTOR WIND MAGNITUDE(KNOTS) 0.8 1.6 3.6 2.2 1.3 2.4 2.9 3.2 2.1 2.0 1.0 1.5 1.2 WIND STEADINESES (MEAN %) 33.3 38.1 63.2 53.7 27.1 42.9 43.9 49.2 51.2 48.8 43.5 55.6 27.3 WIND SPEED (MEAN KNOTS) 2.4 4.2 5.7 4.1 4.8 5.6 6.6 6.5 4.1 4.1 2.3 2.7 4.4 FASTEST WIND DIRECTION 240 200 270 220 100 350 270 310 240 320 300 210 270 FASTEST WIND SPEED (KNOTS) 19 16 29 23 17 19 27 25 14 19 14 16 29 DAY 7 5 18 5 16 28 29 7 28 18 29 31 DAYS WITH SKY CLEAR (0-2)/8 25 21 15 23 19 29 28 25 30 21 25 24 285 DAYS WITH P.CLOUDY (3-6)/8 6 3 11 4 9 1 3 6 0 10 5 6 64 DAYS WITH CLOUDY (7-8)/8 0 4 5 3 3 0 0 0 0 0 0 1 16 DAYS WITH VISIBILITY =< 2 KM 0 0 4 0 1 0 0 1 0 0 0 0 6 DURATION OF SUNSHINE HOURS 276.9 243.3 222.3 324.1 273.6 354.4 353.5 303.0 307.5 289.2 284.2 264.9 3496.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 830.1 828.1 824.4 827.5 826.6 823.2 822.6 822.3 826.1 829.5 830.1 829.5 826.7 MAX. QFE PRESSURE IN HPA 836.1 835.2 831.6 832.2 830.4 828.3 827.4 828.5 832.2 834.4 835.0 836.8 836.8 DAY-HOUR 17- 6 1- 6 2- 6 17- 6 11- 6 28- 6 30- 6 7- 6 26- 6 24- 6 30- 6 1- 6 MIN. QFE PRESSURE IN HPA 823.0 821.7 819.2 821.8 821.7 817.3 818.0 817.9 822.0 823.5 825.5 820.5 817.3 DAY-HOUR 2-21 10-15 14- 9 4-12 29-15 13-12 3-15 25-15 10-15 9-15 25-12 31-12 MEAN QNH PRESSURE IN HPA 1023.7 1021.3 1017.0 1020.6 1019.7 1015.5 1014.8 1014.5 1019.0 1023.0 1023.8 1023.0 1019.7 MAX. QNH PRESSURE IN HPA 1030.9 1029.8 1025.5 1026.2 1024.1 1021.6 1020.6 1021.9 1026.2 1028.8 1029.6 1031.7 1031.7 DAY-HOUR 17- 6 1- 6 2- 6 17- 6 11- 6 28- 6 30- 6 7- 6 26- 6 24- 6 30- 6 1- 6 MIN. QNH PRESSURE IN HPA 1015.3 1013.8 1010.8 1013.9 1013.8 1008.6 1009.4 1009.3 1014.1 1015.9 1018.3 1012.4 1008.6 DAY-HOUR 2-21 10-15 14- 9 4-12 29-15 13-12 3-15 25-15 10-15 9-15 25-12 31-12 MEAN QFF PRESSURE IN HPA 1022.4 1017.4 1010.8 1010.2 1005.8 ****** ****** ****** ****** ****** ****** 1019.4 ****** MAX. QFF PRESSURE IN HPA 1031.2 1028.0 1020.1 1016.2 1010.8 ****** ****** ****** ****** ****** ****** 1035.4 ****** DAY-HOUR 20- 3 1- 6 2- 3 8- 3 1- 3 **-** **-** **-** **-** **-** **-** 2- 3 MIN. QFF PRESSURE IN HPA 1011.9 1008.0 1003.4 1003.2 999.8 ****** ****** ****** ****** ****** ****** 1009.5 ****** DAY-HOUR 2-12 10-21 13-12 19-12 29-15 **-** **-** **-** **-** **-** **-** 31-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 829.9 827.9 824.2 827.3 827.1 ****** ****** ****** ****** ****** ****** 829.1 ****** MAX. QFE PRESSURE IN HPA 834.2 833.5 830.6 830.9 829.7 ****** ****** ****** ****** ****** ****** 833.4 ****** DAY 20 1 2 18 17 ** ** ** ** ** ** 27 MIN. QFE PRESSURE IN HPA 823.3 823.9 819.5 822.2 824.1 ****** ****** ****** ****** ****** ****** 823.3 ****** DAY 3 11 14 5 7 ** ** ** ** ** ** 31 MEAN QNH PRESSURE IN HPA 1023.5 1021.2 1016.7 1020.5 1020.3 ****** ****** ****** ****** ****** ****** 1022.6 ****** MAX. QNH PRESSURE IN HPA 1028.6 1027.8 1024.3 1024.7 1023.3 ****** ****** ****** ****** ****** ****** 1027.7 ****** DAY 20 1 2 18 17 ** ** ** ** ** ** 27 MIN. QNH PRESSURE IN HPA 1015.7 1016.4 1011.2 1014.4 1016.6 ****** ****** ****** ****** ****** ****** 1015.7 ****** DAY 3 11 14 5 7 ** ** ** ** ** ** 31 MEAN QFF PRESSURE IN HPA 1021.1 1016.4 1010.0 1009.9 1006.3 ****** ****** ****** ****** ****** ****** 1018.0 ****** MAX. QFF PRESSURE IN HPA 1027.3 1023.9 1017.2 1013.7 1009.6 ****** ****** ****** ****** ****** ****** 1024.6 ****** DAY 18 1 2 8 1 ** ** ** ** ** ** 5 MIN. QFF PRESSURE IN HPA 1012.8 1009.3 1004.1 1003.7 1001.9 ****** ****** ****** ****** ****** ****** 1011.8 ****** DAY 3 11 14 20 24 ** ** ** ** ** ** 31 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 830.4 828.6 824.7 828.0 827.3 823.8 823.4 823.3 826.8 830.2 830.6 830.1 827.3 MAX. QFE PRESSURE IN HPA 835.0 834.5 830.8 831.4 830.3 827.9 826.6 827.5 831.5 833.0 833.4 835.4 835.4 DAY 20 1 2 17 17 29 30 7 26 16 30 1 MIN. QFE PRESSURE IN HPA 824.0 825.0 820.0 823.0 823.6 818.9 820.0 820.3 823.8 826.2 826.6 822.6 818.9 DAY 3 18 14 5 7 13 4 25 11 11 25 31 MEAN QNH PRESSURE IN HPA 1024.1 1022.0 1017.4 1021.2 1020.4 1016.3 1015.9 1015.6 1019.8 1023.8 1024.3 1023.8 1020.4 MAX. QNH PRESSURE IN HPA 1029.6 1029.0 1024.6 1025.3 1024.0 1021.1 1019.6 1020.7 1025.4 1027.2 1027.7 1030.0 1030.0 DAY 20 1 2 17 17 29 30 7 26 16 30 1 MIN. QNH PRESSURE IN HPA 1016.5 1017.7 1011.8 1015.3 1016.0 1010.5 1011.8 1012.1 1016.3 1019.1 1019.6 1014.9 1010.5 DAY 3 18 14 5 7 13 4 25 11 11 25 31 MEAN QFF PRESSURE IN HPA 1024.2 1019.6 1012.1 1011.9 1006.9 1000.4 998.7 999.4 1005.3 1015.8 1020.1 1022.6 1011.4 MAX. QFF PRESSURE IN HPA 1031.2 1028.0 1020.1 1016.2 1010.8 1009.9 1005.3 1004.2 1011.8 1024.2 1027.6 1035.4 1035.4 DAY 20 1 2 8 1 1 30 8 26 17 30 2 MIN. QFF PRESSURE IN HPA 1015.1 1010.7 1005.5 1007.2 1001.2 993.3 991.6 995.3 999.1 1008.3 1015.4 1011.3 991.6 DAY 3 18 20 4 28 13 26 30 11 4 4 31 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 831.5 829.7 825.5 828.9 827.8 824.4 823.9 823.8 827.7 831.1 831.8 831.1 828.1 MAX. QFE PRESSURE IN HPA 836.1 835.2 831.6 832.2 830.4 828.3 827.4 828.5 832.2 834.4 835.0 836.8 836.8 DAY 17 1 2 17 11 28 30 7 26 24 30 1 MIN. QFE PRESSURE IN HPA 825.0 825.8 820.0 824.2 823.7 819.2 820.4 821.0 824.9 826.9 828.4 823.0 819.2 DAY 3 18 14 5 7 13 3 25 11 11 11 31 MEAN QNH PRESSURE IN HPA 1025.4 1023.2 1018.3 1022.3 1021.0 1016.9 1016.4 1016.3 1020.9 1025.0 1025.7 1024.9 1021.4 MAX. QNH PRESSURE IN HPA 1030.9 1029.8 1025.5 1026.2 1024.1 1021.6 1020.6 1021.9 1026.2 1028.8 1029.6 1031.7 1031.7 DAY 17 1 2 17 11 28 30 7 26 24 30 1 MIN. QNH PRESSURE IN HPA 1017.7 1018.7 1011.8 1016.8 1016.2 1010.8 1012.2 1013.0 1017.6 1020.0 1021.7 1015.3 1010.8 DAY 3 18 14 5 7 13 3 25 11 11 11 31 MEAN QFF PRESSURE IN HPA 1024.4 1019.6 1012.1 1011.8 1007.3 ****** ****** ****** ****** ****** ****** 1020.7 ****** MAX. QFF PRESSURE IN HPA 1030.6 1028.0 1019.2 1015.8 1010.6 ****** ****** ****** ****** ****** ****** 1028.1 ****** DAY 20 1 2 1 10 ** ** ** ** ** ** 19 MIN. QFF PRESSURE IN HPA 1015.3 1011.9 1004.6 1006.7 1003.0 ****** ****** ****** ****** ****** ****** 1011.8 ****** DAY 3 18 14 20 7 ** ** ** ** ** ** 31 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 830.3 828.6 824.7 828.0 826.8 823.4 822.9 822.6 826.5 829.8 830.3 829.7 826.9 MAX. QFE PRESSURE IN HPA 834.7 833.6 830.3 831.1 829.8 827.6 826.1 826.9 831.0 833.1 833.7 834.8 834.8 DAY 17 1 2 17 11 28 29 7 26 24 30 1 MIN. QFE PRESSURE IN HPA 824.3 824.0 819.2 823.4 822.8 818.2 819.4 819.9 823.9 826.0 826.8 821.5 818.2 DAY 3 10 14 5 7 13 3 25 10 9 25 31 MEAN QNH PRESSURE IN HPA 1024.0 1022.0 1017.3 1021.2 1019.8 1015.8 1015.2 1014.8 1019.5 1023.3 1024.0 1023.3 1020.0 MAX. QNH PRESSURE IN HPA 1029.2 1027.9 1024.0 1024.9 1023.4 1020.8 1019.0 1020.0 1024.8 1027.3 1028.0 1029.3 1029.3 DAY 17 1 2 17 11 28 29 7 26 24 30 1 MIN. QNH PRESSURE IN HPA 1016.9 1016.5 1010.8 1015.8 1015.1 1009.6 1011.1 1011.7 1016.4 1018.9 1019.8 1013.6 1009.6 DAY 3 10 14 5 7 13 3 25 10 9 25 31 MEAN QFF PRESSURE IN HPA 1021.7 1017.2 1010.5 1010.3 1005.8 ****** ****** ****** ****** ****** ****** 1017.9 ****** MAX. QFF PRESSURE IN HPA 1028.6 1023.8 1016.4 1014.3 1009.2 ****** ****** ****** ****** ****** ****** 1024.1 ****** DAY 18 1 2 8 1 ** ** ** ** ** ** 18 MIN. QFF PRESSURE IN HPA 1013.8 1010.2 1003.5 1005.3 1002.4 ****** ****** ****** ****** ****** ****** 1010.6 ****** DAY 2 10 14 20 22 ** ** ** ** ** ** 31 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 828.9 826.9 823.4 826.4 825.4 822.1 821.5 821.0 824.8 828.1 828.8 828.3 825.5 MAX. QFE PRESSURE IN HPA 833.0 832.6 828.8 829.4 828.2 826.3 826.3 825.7 829.2 831.4 832.2 833.2 833.2 DAY 17 1 2 22 11 28 29 7 26 24 30 1 MIN. QFE PRESSURE IN HPA 823.2 822.1 819.3 821.8 821.8 817.3 818.1 818.3 822.0 823.8 825.5 820.5 817.3 DAY 2 10 13 4 29 13 3 25 11 9 25 31 MEAN QNH PRESSURE IN HPA 1022.3 1019.9 1015.9 1019.3 1018.2 1014.2 1013.6 1012.9 1017.4 1021.4 1022.2 1021.7 1018.3 MAX. QNH PRESSURE IN HPA 1027.2 1026.7 1022.2 1022.9 1021.5 1019.2 1019.2 1018.5 1022.7 1025.3 1026.2 1027.4 1027.4 DAY 17 1 2 22 11 28 29 7 26 24 30 1 MIN. QNH PRESSURE IN HPA 1015.6 1014.3 1010.9 1013.9 1013.9 1008.6 1009.5 1009.8 1014.1 1016.3 1018.3 1012.4 1008.6 DAY 2 10 13 4 29 13 3 25 11 9 25 31 MEAN QFF PRESSURE IN HPA 1019.9 1015.1 1009.3 1008.7 1004.8 ****** ****** ****** ****** ****** ****** 1016.4 ****** MAX. QFF PRESSURE IN HPA 1025.3 1021.9 1014.1 1012.8 1008.4 ****** ****** ****** ****** ****** ****** 1022.1 ****** DAY 18 1 1 8 1 ** ** ** ** ** ** 18 MIN. QFF PRESSURE IN HPA 1011.9 1008.8 1003.4 1003.2 1001.8 ****** ****** ****** ****** ****** ****** 1009.5 ****** DAY 2 10 13 19 22 ** ** ** ** ** ** 31 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 829.4 827.1 823.7 826.3 825.3 821.7 821.3 820.8 824.8 828.4 829.3 829.0 825.6 MAX. QFE PRESSURE IN HPA 833.7 832.9 829.4 829.4 828.0 826.0 825.6 825.5 829.2 832.1 833.7 834.3 834.3 DAY 19 1 1 22 11 28 29 7 25 16 30 1 MIN. QFE PRESSURE IN HPA 823.4 821.7 819.6 822.8 821.7 817.7 818.0 817.9 822.0 823.5 826.0 821.5 817.7 DAY 2 10 12 4 29 12 3 25 10 9 25 31 MEAN QNH PRESSURE IN HPA 1023.0 1020.2 1016.2 1019.3 1018.0 1013.7 1013.3 1012.8 1017.4 1021.7 1022.8 1022.5 1018.4 MAX. QNH PRESSURE IN HPA 1028.0 1027.1 1022.9 1022.9 1021.3 1018.9 1018.4 1018.3 1022.7 1026.1 1028.0 1028.7 1028.7 DAY 19 1 1 22 11 28 29 7 25 16 30 1 MIN. QNH PRESSURE IN HPA 1015.8 1013.8 1011.3 1015.1 1013.8 1009.0 1009.4 1009.3 1014.1 1015.9 1018.9 1013.6 1009.0 DAY 2 10 12 4 29 12 3 25 10 9 25 31 MEAN QFF PRESSURE IN HPA 1023.0 1017.6 1011.0 1009.8 1004.6 997.7 996.0 996.4 1002.9 1013.6 1018.7 1021.1 1009.4 MAX. QFF PRESSURE IN HPA 1029.6 1024.9 1016.7 1013.2 1008.1 1006.6 1003.6 1002.9 1010.9 1022.1 1030.0 1033.9 1033.9 DAY 19 1 1 13 8 1 29 7 30 17 30 1 MIN. QFF PRESSURE IN HPA 1014.1 1009.9 1005.8 1005.3 999.8 991.9 989.9 992.4 997.1 1004.9 1013.6 1011.4 989.9 DAY 2 10 12 26 29 11 26 29 10 9 3 31 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 830.4 827.9 824.5 827.5 826.8 ****** ****** ****** ****** ****** ****** 829.3 ****** MAX. QFE PRESSURE IN HPA 834.5 833.6 831.0 830.3 829.0 ****** ****** ****** ****** ****** ****** 833.6 ****** DAY 19 1 1 16 16 ** ** ** ** ** ** 26 MIN. QFE PRESSURE IN HPA 823.7 822.7 820.1 823.4 823.0 ****** ****** ****** ****** ****** ****** 822.8 ****** DAY 2 10 14 4 6 ** ** ** ** ** ** 30 MEAN QNH PRESSURE IN HPA 1024.1 1021.1 1017.1 1020.6 1019.9 ****** ****** ****** ****** ****** ****** 1022.8 ****** MAX. QNH PRESSURE IN HPA 1029.0 1027.9 1024.8 1024.0 1022.4 ****** ****** ****** ****** ****** ****** 1027.9 ****** DAY 19 1 1 16 16 ** ** ** ** ** ** 26 MIN. QNH PRESSURE IN HPA 1016.2 1015.0 1011.9 1015.8 1015.3 ****** ****** ****** ****** ****** ****** 1015.1 ****** DAY 2 10 14 4 6 ** ** ** ** ** ** 30 MEAN QFF PRESSURE IN HPA 1023.1 1017.3 1011.0 1009.9 1005.5 ****** ****** ****** ****** ****** ****** 1019.4 ****** MAX. QFF PRESSURE IN HPA 1029.0 1025.9 1018.1 1014.9 1008.4 ****** ****** ****** ****** ****** ****** 1026.8 ****** DAY 18 1 1 12 3 ** ** ** ** ** ** 18 MIN. QFF PRESSURE IN HPA 1014.1 1009.4 1005.2 1004.4 1002.4 ****** ****** ****** ****** ****** ****** 1011.7 ****** DAY 2 10 13 26 20 ** ** ** ** ** ** 30 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 830.2 827.9 824.6 827.6 827.1 ****** ****** ****** ****** ****** ****** 829.3 ****** MAX. QFE PRESSURE IN HPA 834.3 832.2 831.0 831.3 829.5 ****** ****** ****** ****** ****** ****** 833.6 ****** DAY 17 2 1 16 16 ** ** ** ** ** ** 26 MIN. QFE PRESSURE IN HPA 823.0 823.2 820.5 822.2 823.6 ****** ****** ****** ****** ****** ****** 823.0 ****** DAY 2 10 13 4 6 ** ** ** ** ** ** 30 MEAN QNH PRESSURE IN HPA 1023.8 1021.2 1017.3 1020.8 1020.2 ****** ****** ****** ****** ****** ****** 1022.7 ****** MAX. QNH PRESSURE IN HPA 1028.7 1026.2 1024.8 1025.2 1023.0 ****** ****** ****** ****** ****** ****** 1027.9 ****** DAY 17 2 1 16 16 ** ** ** ** ** ** 26 MIN. QNH PRESSURE IN HPA 1015.3 1015.6 1012.4 1014.4 1016.0 ****** ****** ****** ****** ****** ****** 1015.3 ****** DAY 2 10 13 4 6 ** ** ** ** ** ** 30 MEAN QFF PRESSURE IN HPA 1021.6 1016.3 1010.5 1009.7 1005.4 ****** ****** ****** ****** ****** ****** 1018.1 ****** MAX. QFF PRESSURE IN HPA 1028.8 1023.5 1017.3 1013.3 1008.1 ****** ****** ****** ****** ****** ****** 1025.9 ****** DAY 17 7 1 7 8 ** ** ** ** ** ** 4 MIN. QFF PRESSURE IN HPA 1012.7 1008.0 1004.7 1003.9 1002.7 ****** ****** ****** ****** ****** ****** 1011.6 ****** DAY 2 10 19 19 6 ** ** ** ** ** ** 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.2 7.4 12.7 17.4 23.6 27.7 29.9 28.6 24.5 18.2 11.1 7.4 17.8 MINIMUN AIR TEMPERATURE (C) -1.6 0.6 5.2 8.7 12.7 17.0 21.9 20.1 15.0 8.0 1.2 0.8 9.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 20 12 0 0 0 0 34 DAYS WITH MINIMUM TEMP. <=-4 9 7 0 0 0 0 0 0 0 0 6 3 25 DAYS WITH FREEZING MIN.<= 0 18 11 4 0 0 0 0 0 0 0 11 17 61 TEMPERATURE RECORDS LOWEST(C) -11.0 -8.0 -2.5 1.0 9.4 12.5 18.0 13.0 11.2 4.0 -7.0 -10.0 -11.0 DAY 4 8 16 3 11 1 2 12 25 30 27 30 MAXIMUM AIR TEMPERATURE (C) 12.7 14.4 20.3 25.5 32.2 36.2 37.9 35.9 32.9 27.2 20.7 15.1 25.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 28 30 31 31 28 0 0 0 149 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.0 18.0 25.0 30.0 36.0 38.5 40.0 38.0 36.5 29.0 25.0 19.4 40.0 DAY 6 1 22 20 28 19 12 5 10 8 11 14 DIF. BETWEEN (MAX.-MIN.) (C) 14.3 13.8 15.1 16.8 19.5 19.2 16.0 15.8 17.9 19.2 19.5 14.3 16.8 MEAN DAILY TEMP. (MDT) (C) 5.6 7.5 12.8 17.1 22.4 26.6 29.9 28.0 24.0 17.6 10.9 8.0 17.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.5 50.4 167.9 275.4 216.1 90.0 0.5 0.0 0.0 801.0 HEATING DEG. DAYS(BASE 18 0C) 385.2 304.8 162.0 40.8 0.0 0.0 0.0 0.0 0.0 24.3 212.1 310.8 1440.1 DEWPOINT (MEAN C) -6.1 -2.9 -1.7 -0.0 0.3 -1.7 8.5 7.7 0.3 -3.0 -7.5 -4.9 -0.9 MIXING RATIO (G/KG) 3.26 4.02 4.43 5.02 4.95 4.24 8.92 8.31 5.10 3.79 2.78 3.56 4.87 VAPOUR PRESSURE (HPA) 4.31 5.29 5.83 6.61 6.51 5.57 11.57 10.82 6.70 5.02 3.69 4.71 6.39 SATURATION DEF. (HPA) 5.08 5.48 9.63 14.20 24.42 33.65 32.26 29.89 25.76 17.27 10.82 6.30 17.90 RELATIVE HUMIDITY (MEAN %) 50 53 42 35 24 16 29 29 23 25 29 46 33 RELATIVE HUMIDITY (MAX. %) 70 77 67 55 40 25 44 41 37 42 46 65 51 RELATIVE HUMIDITY (MIN. %) 29 31 22 18 13 10 17 18 12 13 16 29 19 RELATIVE HUMIDITY (MEAN% 03UTC) 65 74 62 53 38 24 40 40 33 40 42 57 47 RELATIVE HUMIDITY (MEAN% 09UTC) 36 39 28 22 15 11 20 21 18 18 21 36 24 RELATIVE HUMIDITY (MEAN% 15UTC) 43 41 30 27 16 12 23 21 16 18 24 39 26 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 48.1 37.8 4.8 6.1 0.0 0.0 4.0 0.0 0.0 0.0 0.0 9.0 109.8 DAYS WITH PRECIPITATION >=10 3 1 0 0 0 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 3 2 0 0 0 0 0 0 0 0 0 1 6 DAYS WITH PRECIPITATION >= 1 6 5 2 1 0 0 3 0 0 0 0 2 19 DAYS WITH PRECIPITATION 8 6 4 6 0 0 3 0 0 0 0 2 29 GREATEST DAILY PRECIPITATION 15.0 17.8 3.0 4.0 0.0 0.0 2.0 0.0 0.0 0.0 0.0 8.0 17.8 DAY 18 25 23 27 ** ** 19 ** ** ** ** 18 DAY WITH THUNDER STORM 0 0 2 1 0 0 3 0 1 0 0 0 7 DAYS WITH SNOW OR SLEET 2 0 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH DUST 1 2 7 4 3 1 2 0 0 1 0 1 22 WIND DIRECTION (PREVAILING) 135 135 225 225 270 270 135 225 45 45 135 135 225 PREVAILING WIND SPEED(KNOTS) 6.1 8.9 9.2 6.7 8.2 7.5 11.1 7.3 8.3 7.0 6.3 9.5 8.8 PREVAILING WIND PERCENT 21.1 17.6 23.1 15.0 15.7 10.7 14.0 11.9 13.3 7.3 9.2 11.3 9.7 CALMS PERCENT OF WIND 56.7 55.5 47.4 51.3 59.7 60.7 36.2 34.5 45.4 73.6 73.8 68.5 55.4 NO. OF WIND OBSERVATION 247 227 247 234 248 234 243 226 240 246 240 248 2880 VECTOR WIND DIRECTION (MEAN) 162 187 229 244 274 260 54 37 341 350 184 177 228 VECTOR WIND MAGNITUDE(KNOTS) 1.2 1.6 2.5 1.6 1.7 1.4 1.5 1.0 1.2 0.7 0.7 2.1 0.6 WIND STEADINESES (MEAN %) 41.4 42.1 54.3 43.2 54.8 43.7 21.4 16.4 24.5 35.0 43.8 63.6 15.8 WIND SPEED (MEAN KNOTS) 2.9 3.8 4.6 3.7 3.1 3.2 7.0 6.1 4.9 2.0 1.6 3.3 3.8 FASTEST WIND DIRECTION 240 180 180 300 240 220 350 360 360 340 230 230 180 FASTEST WIND SPEED (KNOTS) 19 35 23 33 23 19 29 19 19 29 19 29 35 DAY 26 3 9 23 6 19 14 1 15 4 29 28 DAYS WITH SKY CLEAR (0-2)/8 16 13 16 8 28 28 21 28 30 28 26 14 256 DAYS WITH P.CLOUDY (3-6)/8 10 11 6 15 3 2 10 3 0 2 4 13 79 DAYS WITH CLOUDY (7-8)/8 5 5 9 7 0 0 0 0 0 1 0 4 31 DAYS WITH VISIBILITY =< 2 KM 2 2 1 0 0 0 0 0 0 0 0 0 5 DURATION OF SUNSHINE HOURS 222.2 215.7 241.1 229.1 356.0 354.9 319.8 342.3 315.8 315.6 278.1 174.3 3364.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 827.1 825.8 824.7 826.1 825.2 822.0 819.5 821.4 825.1 829.2 830.4 828.4 825.4 MAX. QFE PRESSURE IN HPA 834.9 831.9 828.9 833.1 830.2 828.1 824.5 825.6 830.1 834.0 835.8 834.8 835.8 DAY-HOUR 3- 6 20- 6 17- 6 12-18 3- 6 1- 6 31- 3 31- 6 14- 6 17- 6 5- 6 3- 6 MIN. QFE PRESSURE IN HPA 820.4 820.6 817.3 820.7 821.2 817.0 815.3 816.9 821.4 824.0 824.5 820.5 815.3 DAY-HOUR 19-15 3-12 24- 0 28-12 19-12 24-15 18-15 2-15 2-12 7-12 30-12 26-12 MEAN QNH PRESSURE IN HPA 1020.2 1018.7 1017.3 1019.1 1018.0 1014.2 1011.1 1013.4 1017.8 1022.7 1024.1 1021.8 1018.2 MAX. QNH PRESSURE IN HPA 1029.4 1025.9 1022.3 1027.3 1023.9 1021.4 1017.1 1018.4 1023.7 1028.4 1030.5 1029.3 1030.5 DAY-HOUR 3- 6 20- 6 17- 6 12-18 3- 6 1- 6 31- 3 31- 6 14- 6 17- 6 5- 6 3- 6 MIN. QNH PRESSURE IN HPA 1012.2 1012.5 1008.6 1012.6 1013.2 1008.2 1006.2 1008.1 1013.4 1016.5 1017.1 1012.4 1006.2 DAY-HOUR 19-15 3-12 24- 0 28-12 19-12 24-15 18-15 2-15 2-12 7-12 30-12 26-12 MEAN QFF PRESSURE IN HPA 1018.9 1015.7 1010.4 1009.0 1003.6 997.2 992.1 995.8 1002.8 1012.1 1018.6 1018.8 1007.9 MAX. QFF PRESSURE IN HPA 1033.2 1028.1 1018.6 1018.0 1011.7 1006.9 1001.0 1002.2 1010.9 1020.5 1027.5 1032.9 1033.2 DAY-HOUR 3- 6 7- 3 25- 3 3-18 3- 6 1- 6 31- 3 31- 6 25- 3 28- 6 26- 3 29-18 MIN. QFF PRESSURE IN HPA 1009.3 1006.9 1001.6 1002.5 997.4 989.5 986.1 989.8 995.6 1003.7 1010.0 1006.8 986.1 DAY-HOUR 26- 9 3-12 23-21 23-12 19-15 30-12 18-15 24-12 16- 9 7-12 30-12 27-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 827.0 825.6 824.5 826.1 825.0 822.0 819.6 821.8 825.0 829.0 830.3 828.0 825.3 MAX. QFE PRESSURE IN HPA 832.2 830.8 827.3 831.5 829.2 826.1 823.5 824.2 828.0 832.5 833.6 833.5 833.6 DAY 3 7 18 13 4 1 31 22 15 17 6 3 MIN. QFE PRESSURE IN HPA 823.2 821.6 817.3 822.9 822.0 818.4 817.1 818.9 821.8 824.5 826.0 821.6 817.1 DAY 22 18 24 25 20 25 18 25 2 8 30 27 MEAN QNH PRESSURE IN HPA 1020.1 1018.4 1017.1 1019.1 1017.7 1014.1 1011.3 1013.9 1017.7 1022.5 1024.0 1021.2 1018.1 MAX. QNH PRESSURE IN HPA 1026.2 1024.6 1020.4 1025.4 1022.7 1019.0 1015.9 1016.8 1021.3 1026.6 1027.9 1027.8 1027.9 DAY 3 7 18 13 4 1 31 22 15 17 6 3 MIN. QNH PRESSURE IN HPA 1015.6 1013.7 1008.6 1015.2 1014.1 1009.9 1008.3 1010.5 1013.9 1017.1 1018.9 1013.7 1008.3 DAY 22 18 24 25 20 25 18 25 2 8 30 27 MEAN QFF PRESSURE IN HPA 1018.2 1014.9 1009.8 1008.8 1003.5 997.3 992.2 995.9 1002.4 1011.3 1017.7 1017.6 1007.5 MAX. QFF PRESSURE IN HPA 1027.6 1025.4 1016.0 1016.2 1009.5 1004.3 998.3 1000.3 1006.7 1017.3 1023.7 1030.7 1030.7 DAY 4 7 25 4 4 1 31 12 25 28 26 30 MIN. QFF PRESSURE IN HPA 1011.0 1010.1 1003.5 1003.5 998.6 991.0 987.8 991.0 998.5 1004.8 1012.0 1007.0 987.8 DAY 27 18 24 24 20 30 19 25 12 9 30 27 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 827.3 826.1 825.2 826.5 826.0 823.0 820.4 822.1 825.9 829.7 831.0 828.6 826.0 MAX. QFE PRESSURE IN HPA 833.2 831.1 828.2 832.9 829.7 827.3 824.5 825.4 829.2 833.0 834.3 833.8 834.3 DAY 3 7 17 13 4 1 31 21 15 17 5 3 MIN. QFE PRESSURE IN HPA 822.9 821.9 819.3 823.8 823.8 818.6 817.8 819.4 823.5 825.6 826.7 823.1 817.8 DAY 29 18 24 28 13 30 18 25 2 8 30 27 MEAN QNH PRESSURE IN HPA 1020.5 1019.1 1017.9 1019.5 1018.9 1015.3 1012.3 1014.3 1018.8 1023.3 1024.8 1021.9 1018.9 MAX. QNH PRESSURE IN HPA 1027.4 1024.9 1021.5 1027.1 1023.3 1020.4 1017.1 1018.2 1022.7 1027.2 1028.7 1028.1 1028.7 DAY 3 7 17 13 4 1 31 21 15 17 5 3 MIN. QNH PRESSURE IN HPA 1015.2 1014.0 1010.9 1016.3 1016.3 1010.1 1009.2 1011.1 1015.9 1018.4 1019.7 1015.5 1009.2 DAY 29 18 24 28 13 30 18 25 2 8 30 27 MEAN QFF PRESSURE IN HPA 1020.1 1016.9 1011.9 1010.2 1005.1 998.8 993.9 997.1 1005.0 1014.3 1021.2 1020.1 1009.6 MAX. QFF PRESSURE IN HPA 1032.5 1028.1 1018.6 1017.5 1011.1 1005.9 1001.0 1002.1 1010.9 1019.0 1027.5 1032.8 1032.8 DAY 4 7 25 13 4 1 31 12 25 28 26 30 MIN. QFF PRESSURE IN HPA 1012.2 1009.3 1005.4 1005.3 1000.1 990.8 989.3 992.9 1001.1 1008.8 1014.9 1009.9 989.3 DAY 26 18 14 23 30 30 18 8 12 1 30 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 828.4 827.2 826.0 827.4 826.7 823.5 820.7 822.8 826.8 830.9 832.0 830.0 826.8 MAX. QFE PRESSURE IN HPA 834.9 831.9 828.9 833.1 830.2 828.1 824.5 825.6 830.1 834.0 835.8 834.8 835.8 DAY 3 20 17 13 3 1 31 31 14 17 5 3 MIN. QFE PRESSURE IN HPA 823.3 823.2 820.6 824.1 824.4 819.3 817.9 820.9 824.0 826.8 828.5 823.2 817.9 DAY 19 3 24 25 24 30 18 24 2 7 22 26 MEAN QNH PRESSURE IN HPA 1021.7 1020.3 1018.9 1020.5 1019.7 1015.9 1012.6 1015.1 1019.8 1024.6 1026.0 1023.6 1019.9 MAX. QNH PRESSURE IN HPA 1029.4 1025.9 1022.3 1027.3 1023.9 1021.4 1017.1 1018.4 1023.7 1028.4 1030.5 1029.3 1030.5 DAY 3 20 17 13 3 1 31 31 14 17 5 3 MIN. QNH PRESSURE IN HPA 1015.7 1015.6 1012.5 1016.6 1017.0 1010.9 1009.3 1012.8 1016.5 1019.8 1021.9 1015.6 1009.3 DAY 19 3 24 25 24 30 18 24 2 7 22 26 MEAN QFF PRESSURE IN HPA 1020.7 1017.4 1011.9 1010.4 1005.2 998.8 993.6 998.0 1004.7 1013.9 1020.7 1021.0 1009.7 MAX. QFF PRESSURE IN HPA 1033.2 1027.3 1017.9 1016.6 1011.7 1006.9 998.9 1002.2 1009.5 1020.5 1027.2 1032.3 1033.2 DAY 3 7 25 3 3 1 31 31 25 28 26 30 MIN. QFF PRESSURE IN HPA 1012.4 1009.1 1004.6 1005.8 1000.4 992.0 988.6 993.2 1001.1 1007.4 1015.8 1010.8 988.6 DAY 19 3 23 21 19 30 18 24 11 9 19 26 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 827.2 826.3 825.2 826.4 825.7 822.4 819.5 821.6 825.4 829.5 830.5 828.7 825.7 MAX. QFE PRESSURE IN HPA 834.2 830.6 828.0 832.7 829.8 827.2 823.0 824.4 829.0 832.9 834.5 833.3 834.5 DAY 3 20 17 12 3 1 31 31 14 28 6 3 MIN. QFE PRESSURE IN HPA 822.0 822.5 821.4 822.9 822.9 817.9 816.7 818.8 823.0 825.6 826.2 822.4 816.7 DAY 19 3 23 28 19 30 18 2 2 7 30 26 MEAN QNH PRESSURE IN HPA 1020.4 1019.2 1017.9 1019.4 1018.6 1014.6 1011.2 1013.6 1018.2 1023.0 1024.2 1022.0 1018.5 MAX. QNH PRESSURE IN HPA 1028.6 1024.3 1021.3 1026.8 1023.4 1020.3 1015.3 1017.0 1022.4 1027.1 1029.0 1027.5 1029.0 DAY 3 20 17 12 3 1 31 31 14 28 6 3 MIN. QNH PRESSURE IN HPA 1014.1 1014.7 1013.4 1015.2 1015.2 1009.3 1007.9 1010.4 1015.3 1018.4 1019.1 1014.6 1007.9 DAY 19 3 23 28 19 30 18 2 2 7 30 26 MEAN QFF PRESSURE IN HPA 1018.4 1015.7 1010.4 1008.8 1003.8 997.4 991.6 996.0 1002.2 1011.4 1017.6 1018.3 1007.6 MAX. QFF PRESSURE IN HPA 1030.8 1024.8 1016.0 1015.3 1010.2 1004.0 997.1 1000.3 1006.4 1017.5 1023.5 1027.9 1030.8 DAY 3 7 25 3 2 1 31 12 25 28 26 30 MIN. QFF PRESSURE IN HPA 1009.3 1008.4 1003.3 1003.9 998.4 990.0 987.3 991.7 995.6 1005.3 1012.1 1008.9 987.3 DAY 26 3 23 23 19 30 18 24 16 7 30 26 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 825.8 824.6 823.6 824.9 824.2 821.0 818.2 820.0 823.8 828.0 828.9 827.1 824.2 MAX. QFE PRESSURE IN HPA 831.7 829.1 826.6 831.1 828.1 825.4 821.9 822.9 827.4 831.5 832.8 831.6 832.8 DAY 3 20 17 12 3 1 30 31 14 28 5 3 MIN. QFE PRESSURE IN HPA 820.6 820.6 820.0 820.7 821.2 817.5 815.8 817.3 821.4 824.0 824.5 820.5 815.8 DAY 19 3 23 28 19 30 17 2 2 7 30 26 MEAN QNH PRESSURE IN HPA 1018.7 1017.2 1016.0 1017.6 1016.8 1013.0 1009.6 1011.7 1016.3 1021.3 1022.3 1020.2 1016.7 MAX. QNH PRESSURE IN HPA 1025.6 1022.6 1019.6 1024.9 1021.4 1018.2 1014.0 1015.2 1020.6 1025.4 1027.0 1025.5 1027.0 DAY 3 20 17 12 3 1 30 31 14 28 5 3 MIN. QNH PRESSURE IN HPA 1012.5 1012.5 1011.8 1012.6 1013.2 1008.8 1006.8 1008.6 1013.4 1016.5 1017.1 1012.4 1006.8 DAY 19 3 23 28 19 30 17 2 2 7 30 26 MEAN QFF PRESSURE IN HPA 1016.7 1013.6 1008.8 1007.5 1002.5 996.1 990.5 994.2 1001.0 1010.1 1016.0 1016.5 1006.1 MAX. QFF PRESSURE IN HPA 1027.4 1023.5 1014.1 1014.6 1008.4 1003.2 996.7 999.5 1004.8 1016.6 1021.7 1025.7 1027.4 DAY 3 7 15 3 2 1 30 31 26 28 25 29 MIN. QFF PRESSURE IN HPA 1009.7 1006.9 1002.9 1002.5 997.5 989.5 986.4 989.8 996.7 1003.7 1010.0 1006.8 986.4 DAY 26 3 10 23 19 30 18 24 11 7 30 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 826.4 825.0 823.8 825.1 824.0 820.7 818.1 819.7 823.9 828.3 829.6 827.8 824.4 MAX. QFE PRESSURE IN HPA 832.1 829.2 826.6 831.2 827.8 824.9 821.6 822.8 827.1 831.3 833.3 832.8 833.3 DAY 3 7 17 12 3 1 30 21 14 27 5 2 MIN. QFE PRESSURE IN HPA 820.4 820.6 818.7 820.7 821.2 817.0 815.3 816.9 821.6 824.0 825.6 821.0 815.3 DAY 19 3 23 28 19 24 18 2 2 7 30 26 MEAN QNH PRESSURE IN HPA 1019.4 1017.7 1016.2 1017.8 1016.5 1012.6 1009.5 1011.4 1016.4 1021.6 1023.1 1021.0 1016.9 MAX. QNH PRESSURE IN HPA 1026.1 1022.7 1019.6 1025.1 1021.0 1017.6 1013.7 1015.1 1020.2 1025.2 1027.5 1027.0 1027.5 DAY 3 7 17 12 3 1 30 21 14 27 5 2 MIN. QNH PRESSURE IN HPA 1012.2 1012.5 1010.2 1012.6 1013.2 1008.2 1006.2 1008.1 1013.7 1016.5 1018.4 1013.0 1006.2 DAY 19 3 23 28 19 24 18 2 2 7 30 26 MEAN QFF PRESSURE IN HPA 1019.0 1015.5 1010.2 1008.5 1002.5 996.0 991.1 994.1 1002.6 1012.6 1019.5 1019.1 1007.5 MAX. QFF PRESSURE IN HPA 1030.7 1026.2 1016.2 1017.7 1008.8 1002.7 996.7 1000.5 1007.6 1017.2 1025.1 1029.3 1030.7 DAY 3 7 15 3 3 1 31 31 25 23 25 29 MIN. QFF PRESSURE IN HPA 1011.1 1007.2 1002.9 1003.0 997.4 990.0 986.1 989.9 998.0 1007.1 1014.1 1008.6 986.1 DAY 26 3 23 30 19 30 18 24 11 7 19 26 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 827.3 826.0 824.7 826.4 825.1 821.7 819.6 821.5 824.9 829.3 830.4 828.7 825.5 MAX. QFE PRESSURE IN HPA 832.5 830.0 827.6 833.1 829.1 825.9 823.6 824.5 828.4 832.5 833.9 833.6 833.9 DAY 2 20 29 12 3 1 30 21 14 16 4 29 MIN. QFE PRESSURE IN HPA 822.6 822.3 818.2 822.6 822.3 818.4 816.9 819.2 822.5 824.7 826.2 821.5 816.9 DAY 26 17 23 28 19 24 18 24 1 7 30 26 MEAN QNH PRESSURE IN HPA 1020.4 1018.9 1017.4 1019.4 1017.9 1013.8 1011.3 1013.5 1017.6 1022.8 1024.1 1022.1 1018.3 MAX. QNH PRESSURE IN HPA 1026.6 1023.6 1020.8 1027.3 1022.6 1018.8 1016.0 1017.1 1021.7 1026.6 1028.3 1027.9 1028.3 DAY 2 20 29 12 3 1 30 21 14 16 4 29 MIN. QNH PRESSURE IN HPA 1014.9 1014.5 1009.6 1014.9 1014.5 1009.9 1008.1 1010.8 1014.7 1017.3 1019.1 1013.6 1008.1 DAY 26 17 23 28 19 24 18 24 1 7 30 26 MEAN QFF PRESSURE IN HPA 1019.3 1016.1 1010.3 1009.1 1003.4 996.6 992.3 996.0 1002.6 1012.1 1018.9 1019.5 1008.0 MAX. QFF PRESSURE IN HPA 1031.0 1026.1 1016.2 1018.0 1011.6 1002.8 998.0 999.7 1006.2 1018.0 1024.3 1032.9 1032.9 DAY 3 7 24 3 2 1 30 31 24 28 26 29 MIN. QFF PRESSURE IN HPA 1010.4 1008.9 1001.9 1003.5 998.3 991.8 987.7 991.6 999.3 1005.8 1013.4 1007.9 987.7 DAY 26 3 23 20 19 29 18 24 8 7 29 26 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 827.3 825.9 824.7 826.5 825.3 822.0 819.9 822.0 825.1 829.3 830.5 828.7 825.6 MAX. QFE PRESSURE IN HPA 833.5 830.2 827.8 832.5 829.4 825.4 824.0 825.2 828.4 832.3 833.8 833.4 833.8 DAY 11 6 29 12 2 1 30 21 14 27 5 2 MIN. QFE PRESSURE IN HPA 822.9 821.6 817.4 822.5 822.2 818.8 817.3 819.2 822.3 824.5 826.6 822.2 817.3 DAY 21 17 23 28 19 24 17 24 1 7 29 26 MEAN QNH PRESSURE IN HPA 1020.5 1018.8 1017.4 1019.5 1018.1 1014.2 1011.6 1014.1 1017.8 1022.8 1024.3 1022.1 1018.4 MAX. QNH PRESSURE IN HPA 1027.8 1023.9 1021.0 1026.6 1022.9 1018.2 1016.5 1017.9 1021.7 1026.4 1028.1 1027.7 1028.1 DAY 11 6 29 12 2 1 30 21 14 27 5 2 MIN. QNH PRESSURE IN HPA 1015.2 1013.7 1008.7 1014.7 1014.4 1010.4 1008.6 1010.8 1014.5 1017.1 1019.6 1014.4 1008.6 DAY 21 17 23 28 19 24 17 24 1 7 29 26 MEAN QFF PRESSURE IN HPA 1018.5 1015.3 1009.8 1008.7 1003.2 996.9 992.0 995.9 1002.0 1011.3 1017.7 1018.6 1007.5 MAX. QFF PRESSURE IN HPA 1029.3 1025.6 1016.6 1015.8 1010.0 1002.3 998.3 999.9 1006.5 1016.3 1024.3 1031.7 1031.7 DAY 3 7 24 3 2 8 30 27 24 27 26 29 MIN. QFF PRESSURE IN HPA 1009.5 1009.6 1001.6 1003.8 998.2 992.0 987.6 991.0 997.9 1004.4 1012.1 1007.3 987.6 DAY 26 17 23 20 19 29 18 24 8 8 29 26 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.2 4.1 10.8 15.7 22.9 28.5 29.0 27.4 23.8 18.7 12.2 6.7 16.9 MINIMUN AIR TEMPERATURE (C) -4.8 -4.2 3.3 8.8 13.5 19.2 20.9 18.9 14.6 9.0 4.9 0.2 8.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 6 18 5 0 0 0 0 29 DAYS WITH MINIMUM TEMP. <=-4 18 17 1 0 0 0 0 0 0 0 0 8 44 DAYS WITH FREEZING MIN.<= 0 27 20 8 0 0 0 0 0 0 0 2 18 75 TEMPERATURE RECORDS LOWEST(C) -12.0 -13.0 -4.0 0.8 5.0 16.0 15.0 15.6 6.5 5.0 -1.5 -5.0 -13.0 DAY 19 8 1 2 2 26 26 8 26 29 26 20 MAXIMUM AIR TEMPERATURE (C) 11.3 12.2 17.8 22.5 30.4 36.3 36.5 35.3 32.4 28.0 19.4 13.8 24.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 20 30 31 31 25 7 0 0 144 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 15.5 19.0 22.0 28.5 37.0 39.5 40.0 37.0 35.0 32.0 24.0 19.0 40.0 DAY 23 21 4 17 30 27 9 13 8 10 19 1 DIF. BETWEEN (MAX.-MIN.) (C) 16.1 16.4 14.5 13.7 16.9 17.1 15.6 16.4 17.8 19.0 14.5 13.6 16.0 MEAN DAILY TEMP. (MDT) (C) 3.3 4.0 10.6 15.7 21.9 27.8 28.7 27.1 23.5 18.5 12.2 7.0 16.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.3 61.1 202.6 238.8 189.0 82.0 0.0 0.0 0.0 775.0 HEATING DEG. DAYS(BASE 18 0C) 457.2 391.0 230.4 82.4 14.5 0.0 0.0 0.0 0.0 13.9 174.4 340.9 1704.8 DEWPOINT (MEAN C) -9.6 -10.4 -3.8 -2.4 -1.0 0.6 2.1 3.2 4.2 -1.6 0.1 -2.9 -1.8 MIXING RATIO (G/KG) 2.36 2.39 3.87 4.25 4.54 5.08 5.70 6.34 6.51 4.29 4.89 3.98 4.52 VAPOUR PRESSURE (HPA) 3.12 3.17 5.09 5.60 5.98 6.66 7.45 8.29 8.53 5.67 6.48 5.27 5.94 SATURATION DEF. (HPA) 5.18 5.85 8.62 13.30 23.76 33.95 34.18 29.62 22.68 17.32 8.41 5.10 17.33 RELATIVE HUMIDITY (MEAN %) 42 38 42 35 23 18 20 23 30 27 49 55 34 RELATIVE HUMIDITY (MAX. %) 65 58 63 60 37 28 30 35 42 44 73 77 51 RELATIVE HUMIDITY (MIN. %) 22 21 24 17 12 11 11 14 19 16 27 32 19 RELATIVE HUMIDITY (MEAN% 03UTC) 59 54 59 56 37 27 28 33 40 43 67 72 48 RELATIVE HUMIDITY (MEAN% 09UTC) 33 33 30 21 15 13 14 17 22 19 34 39 24 RELATIVE HUMIDITY (MEAN% 15UTC) 32 28 33 24 15 12 14 18 25 20 35 47 25 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 0.0 0.1 20.2 5.8 0.0 0.0 0.4 0.7 0.0 0.0 22.0 20.0 69.2 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 1 1 2 DAYS WITH PRECIPITATION >= 5 0 0 2 0 0 0 0 0 0 0 2 2 6 DAYS WITH PRECIPITATION >= 1 0 0 6 2 0 0 0 0 0 0 4 3 15 DAYS WITH PRECIPITATION 0 1 8 6 0 0 1 1 0 0 4 3 24 GREATEST DAILY PRECIPITATION 0.0 0.1 6.0 3.0 0.0 0.0 0.4 0.7 0.0 0.0 11.0 14.0 14.0 DAY ** 11 18 22 ** ** 15 3 ** ** 8 15 DAY WITH THUNDER STORM 0 0 0 1 0 0 1 0 0 0 0 0 2 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 3 5 5 4 9 3 11 6 0 1 1 0 48 WIND DIRECTION (PREVAILING) 135 225 225 315 315 270 45 45 315 45 135 135 315 PREVAILING WIND SPEED(KNOTS) 8.1 14.0 13.0 11.3 10.5 8.0 12.2 9.0 7.9 7.8 7.7 8.8 9.4 PREVAILING WIND PERCENT 12.5 14.3 18.1 9.6 16.9 15.8 22.2 18.1 8.8 9.7 8.8 18.5 8.7 CALMS PERCENT OF WIND 62.5 50.9 42.3 52.5 46.8 38.8 22.6 27.0 53.3 57.7 70.4 54.8 48.2 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 192 232 230 304 295 283 24 9 321 21 228 168 289 VECTOR WIND MAGNITUDE(KNOTS) 2.0 2.4 3.0 1.1 3.0 1.9 4.5 3.1 0.7 0.3 0.4 1.9 0.7 WIND STEADINESES (MEAN %) 54.1 45.3 50.8 22.9 56.6 35.8 50.6 47.7 18.9 9.4 17.4 50.0 14.3 WIND SPEED (MEAN KNOTS) 3.7 5.3 5.9 4.8 5.3 5.3 8.9 6.5 3.7 3.2 2.3 3.8 4.9 FASTEST WIND DIRECTION 190 220 250 310 230 360 10 180 50 360 310 190 310 FASTEST WIND SPEED (KNOTS) 29 31 29 35 29 25 35 29 19 23 19 19 35 DAY 3 14 11 24 8 29 21 2 22 5 8 4 DAYS WITH SKY CLEAR (0-2)/8 22 19 13 7 25 29 26 27 30 31 17 20 266 DAYS WITH P.CLOUDY (3-6)/8 8 5 12 18 5 1 5 4 0 0 12 8 78 DAYS WITH CLOUDY (7-8)/8 1 4 6 5 1 0 0 0 0 0 1 3 21 DAYS WITH VISIBILITY =< 2 KM 0 1 2 2 4 0 1 0 0 0 0 0 10 DURATION OF SUNSHINE HOURS 260.0 229.6 231.7 228.3 328.7 353.8 327.2 320.5 322.7 315.6 227.3 227.5 3372.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 825.7 826.9 824.5 826.7 825.7 822.3 821.6 822.4 825.0 829.2 830.3 828.1 825.7 MAX. QFE PRESSURE IN HPA 830.8 832.3 830.2 831.8 829.3 826.4 825.1 826.4 832.7 835.5 835.1 833.6 835.5 DAY-HOUR 19- 6 8- 6 8- 6 9- 6 13- 6 3- 6 9- 6 26- 6 24- 6 27- 6 29- 6 2- 6 MIN. QFE PRESSURE IN HPA 820.2 820.3 819.3 821.6 821.2 816.9 818.2 816.9 820.0 824.4 826.9 823.4 816.9 DAY-HOUR 12-12 14-12 18-12 23-12 31-15 7-15 1-12 1-15 12-12 1-12 12-12 23-12 MEAN QNH PRESSURE IN HPA 1018.5 1019.9 1017.1 1019.7 1018.5 1014.5 1013.7 1014.6 1017.7 1022.7 1024.0 1021.3 1018.5 MAX. QNH PRESSURE IN HPA 1024.6 1026.4 1023.9 1025.8 1022.8 1019.4 1017.8 1019.4 1026.8 1030.2 1029.7 1027.9 1030.2 DAY-HOUR 19- 6 8- 6 8- 6 9- 6 13- 6 3- 6 9- 6 26- 6 24- 6 27- 6 29- 6 2- 6 MIN. QNH PRESSURE IN HPA 1012.0 1012.1 1010.9 1013.7 1013.2 1008.1 1009.6 1008.1 1011.8 1017.0 1020.0 1015.8 1008.1 DAY-HOUR 12-12 14-12 18-12 23-12 31-15 7-15 1-12 1-15 12-12 1-12 12-12 23-12 MEAN QFF PRESSURE IN HPA 1018.7 1019.6 1011.5 1010.8 1004.7 996.9 995.6 997.5 1002.9 1011.7 1017.5 1018.8 1008.9 MAX. QFF PRESSURE IN HPA 1030.9 1032.6 1021.7 1020.2 1015.0 1001.5 1000.4 1003.7 1015.8 1020.9 1026.5 1027.0 1032.6 DAY-HOUR 19- 6 8- 6 31- 9 1- 3 2- 6 25- 6 22- 3 31- 3 24- 6 28- 3 29- 3 19- 6 MIN. QFF PRESSURE IN HPA 1007.8 1006.7 1005.1 1003.6 996.0 991.3 990.4 990.7 994.5 1003.6 1011.5 1012.0 990.4 DAY-HOUR 3- 0 23- 0 27-21 22-12 30-12 7-12 1-12 1-21 12-12 1-12 3-12 8-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 825.3 826.4 824.2 826.5 825.7 822.1 821.7 822.3 824.7 828.9 830.0 827.9 825.5 MAX. QFE PRESSURE IN HPA 829.3 831.5 828.8 829.9 828.5 824.3 824.2 825.5 831.1 833.2 833.2 832.2 833.2 DAY 10 21 8 9 14 3 10 27 24 28 29 1 MIN. QFE PRESSURE IN HPA 821.7 820.3 820.0 821.7 823.3 818.9 819.8 817.6 821.4 825.8 827.4 824.4 817.6 DAY 12 23 30 30 31 8 15 2 13 2 25 21 MEAN QNH PRESSURE IN HPA 1018.1 1019.3 1016.7 1019.4 1018.5 1014.3 1013.8 1014.5 1017.3 1022.3 1023.7 1021.1 1018.3 MAX. QNH PRESSURE IN HPA 1022.8 1025.4 1022.2 1023.5 1021.9 1016.9 1016.8 1018.3 1024.9 1027.4 1027.4 1026.2 1027.4 DAY 10 21 8 9 14 3 10 27 24 28 29 1 MIN. QNH PRESSURE IN HPA 1013.8 1012.1 1011.8 1013.8 1015.7 1010.5 1011.5 1008.9 1013.4 1018.7 1020.6 1017.0 1008.9 DAY 12 23 30 30 31 8 15 2 13 2 25 21 MEAN QFF PRESSURE IN HPA 1017.6 1018.4 1010.8 1010.5 1004.8 996.9 995.6 997.3 1002.4 1010.8 1016.7 1018.2 1008.3 MAX. QFF PRESSURE IN HPA 1027.7 1026.8 1018.7 1019.6 1012.7 999.4 998.7 1001.3 1012.3 1017.5 1022.0 1024.0 1027.7 DAY 19 8 1 1 2 3 22 8 24 28 29 19 MIN. QFF PRESSURE IN HPA 1007.8 1006.7 1005.5 1004.4 997.9 993.3 992.1 991.1 996.7 1004.6 1013.1 1012.7 991.1 DAY 3 23 28 30 31 8 5 2 13 2 4 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 825.8 827.2 824.9 827.3 826.4 823.2 822.6 823.2 825.8 829.9 830.7 828.3 826.3 MAX. QFE PRESSURE IN HPA 829.7 831.3 829.5 831.3 829.0 825.7 825.0 825.5 831.6 833.8 834.2 832.3 834.2 DAY 19 26 8 9 13 3 20 31 24 27 29 1 MIN. QFE PRESSURE IN HPA 821.5 821.3 820.8 822.3 823.6 820.7 820.6 818.9 822.4 826.4 827.6 825.0 818.9 DAY 3 23 30 30 31 7 31 2 13 2 12 21 MEAN QNH PRESSURE IN HPA 1018.7 1020.3 1017.6 1020.4 1019.4 1015.5 1014.8 1015.6 1018.6 1023.5 1024.4 1021.6 1019.2 MAX. QNH PRESSURE IN HPA 1023.3 1025.2 1023.0 1025.2 1022.4 1018.5 1017.7 1018.3 1025.5 1028.1 1028.6 1026.4 1028.6 DAY 19 26 8 9 13 3 20 31 24 27 29 1 MIN. QNH PRESSURE IN HPA 1013.6 1013.3 1012.7 1014.5 1016.0 1012.6 1012.5 1010.5 1014.6 1019.4 1020.8 1017.7 1010.5 DAY 3 23 30 30 31 7 31 2 13 2 12 21 MEAN QFF PRESSURE IN HPA 1020.1 1021.3 1013.0 1012.4 1006.5 998.3 997.4 999.2 1005.0 1014.2 1019.2 1020.2 1010.6 MAX. QFF PRESSURE IN HPA 1030.3 1030.7 1020.6 1020.2 1014.5 1001.0 1000.4 1003.7 1014.1 1020.9 1026.5 1025.6 1030.7 DAY 19 8 1 1 2 3 22 31 24 28 29 19 MIN. QFF PRESSURE IN HPA 1008.8 1008.5 1007.6 1005.6 999.8 996.0 994.0 992.3 999.5 1007.9 1015.2 1013.8 992.3 DAY 3 23 16 30 30 17 5 2 12 2 6 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 827.0 828.2 826.0 828.0 827.1 823.9 822.9 823.9 826.7 830.9 831.7 829.5 827.1 MAX. QFE PRESSURE IN HPA 830.8 832.3 830.2 831.8 829.3 826.4 825.1 826.4 832.7 835.5 835.1 833.6 835.5 DAY 19 8 8 9 13 3 9 26 24 27 29 2 MIN. QFE PRESSURE IN HPA 822.3 822.0 821.0 823.2 824.4 820.7 821.2 820.0 823.2 827.2 828.8 826.3 820.0 DAY 12 23 30 30 31 7 5 2 12 2 12 21 MEAN QNH PRESSURE IN HPA 1020.1 1021.4 1018.9 1021.3 1020.2 1016.4 1015.2 1016.4 1019.7 1024.7 1025.7 1023.0 1020.2 MAX. QNH PRESSURE IN HPA 1024.6 1026.4 1023.9 1025.8 1022.8 1019.4 1017.8 1019.4 1026.8 1030.2 1029.7 1027.9 1030.2 DAY 19 8 8 9 13 3 9 26 24 27 29 2 MIN. QNH PRESSURE IN HPA 1014.5 1014.1 1013.0 1015.6 1017.0 1012.6 1013.2 1011.8 1015.6 1020.3 1022.2 1019.2 1011.8 DAY 12 23 30 30 31 7 5 2 12 2 12 21 MEAN QFF PRESSURE IN HPA 1020.9 1021.4 1013.2 1012.1 1006.2 998.7 997.0 999.2 1004.8 1013.6 1019.1 1020.6 1010.6 MAX. QFF PRESSURE IN HPA 1030.9 1032.6 1021.2 1019.0 1015.0 1001.5 1000.2 1003.3 1015.8 1019.5 1025.3 1027.0 1032.6 DAY 19 8 31 2 2 25 22 31 24 27 26 19 MIN. QFF PRESSURE IN HPA 1011.8 1008.4 1008.4 1006.3 998.8 994.4 993.8 993.9 999.0 1007.1 1015.3 1016.1 993.8 DAY 12 23 18 29 30 7 5 2 12 2 12 15 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 826.0 827.2 825.0 827.0 826.1 822.8 821.6 822.6 825.5 829.6 830.4 828.2 826.0 MAX. QFE PRESSURE IN HPA 829.5 831.5 829.1 831.2 828.1 825.6 824.1 824.8 831.3 834.0 833.4 832.6 834.0 DAY 27 20 31 9 9 3 9 26 24 27 28 1 MIN. QFE PRESSURE IN HPA 821.5 821.0 820.0 822.7 823.4 818.7 820.2 819.0 822.0 826.2 828.3 825.2 818.7 DAY 12 14 30 23 31 7 5 1 12 1 12 23 MEAN QNH PRESSURE IN HPA 1018.9 1020.4 1017.7 1020.1 1019.0 1015.1 1013.6 1014.9 1018.3 1023.1 1024.1 1021.5 1018.9 MAX. QNH PRESSURE IN HPA 1023.0 1025.4 1022.6 1025.1 1021.4 1018.4 1016.6 1017.5 1025.2 1028.4 1027.7 1026.7 1028.4 DAY 27 20 31 9 9 3 9 26 24 27 28 1 MIN. QNH PRESSURE IN HPA 1013.6 1013.0 1011.8 1015.0 1015.8 1010.2 1012.0 1010.6 1014.1 1019.1 1021.6 1017.9 1010.2 DAY 12 14 30 23 31 7 5 1 12 1 12 23 MEAN QFF PRESSURE IN HPA 1018.3 1019.3 1011.4 1010.5 1004.6 997.1 995.1 997.2 1002.7 1011.1 1016.8 1018.4 1008.5 MAX. QFF PRESSURE IN HPA 1026.5 1028.2 1021.7 1018.1 1012.4 1000.2 998.7 1001.9 1013.0 1017.6 1022.1 1022.9 1028.2 DAY 19 8 31 1 2 12 22 31 24 27 26 19 MIN. QFF PRESSURE IN HPA 1010.1 1009.0 1006.4 1005.0 997.3 991.6 992.3 992.1 996.8 1005.1 1013.0 1013.6 991.6 DAY 12 23 27 22 30 7 1 2 12 1 6 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 824.6 825.7 823.3 825.6 824.6 821.3 820.3 821.2 823.7 827.9 829.0 826.8 824.5 MAX. QFE PRESSURE IN HPA 828.6 829.2 828.3 829.2 826.8 823.6 822.5 823.1 828.4 832.5 831.7 831.0 832.5 DAY 27 20 31 9 13 3 10 31 23 27 29 2 MIN. QFE PRESSURE IN HPA 820.2 820.3 819.3 821.6 821.9 817.3 818.2 817.5 820.0 824.4 826.9 823.4 817.3 DAY 12 14 18 23 30 7 1 1 12 1 12 23 MEAN QNH PRESSURE IN HPA 1017.2 1018.5 1015.7 1018.4 1017.2 1013.4 1012.1 1013.2 1016.1 1021.1 1022.5 1019.8 1017.1 MAX. QNH PRESSURE IN HPA 1022.0 1022.7 1021.6 1022.7 1019.8 1016.0 1014.7 1015.5 1021.7 1026.6 1025.6 1024.8 1026.6 DAY 27 20 31 9 13 3 10 31 23 27 29 2 MIN. QNH PRESSURE IN HPA 1012.0 1012.1 1010.9 1013.7 1014.0 1008.6 1009.6 1008.8 1011.8 1017.0 1020.0 1015.8 1008.6 DAY 12 14 18 23 30 7 1 1 12 1 12 23 MEAN QFF PRESSURE IN HPA 1016.7 1017.5 1009.9 1009.4 1003.4 995.9 994.0 996.0 1001.0 1009.5 1015.5 1016.9 1007.1 MAX. QFF PRESSURE IN HPA 1023.1 1025.0 1019.8 1018.2 1011.8 998.8 996.9 999.7 1008.9 1016.5 1020.5 1022.3 1025.0 DAY 19 7 31 4 2 12 28 31 24 27 26 19 MIN. QFF PRESSURE IN HPA 1008.5 1008.6 1005.7 1003.6 996.0 991.3 990.4 990.9 994.5 1003.6 1011.5 1012.0 990.4 DAY 12 23 14 22 30 7 1 1 12 1 3 8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 825.0 826.0 823.5 825.6 824.3 820.8 820.1 821.1 823.7 828.2 829.5 827.5 824.6 MAX. QFE PRESSURE IN HPA 828.4 829.7 828.2 828.9 826.6 823.0 822.1 823.5 828.9 832.8 832.3 831.5 832.8 DAY 27 8 31 9 8 25 9 30 24 27 28 2 MIN. QFE PRESSURE IN HPA 821.5 820.8 820.0 822.0 821.2 816.9 818.6 816.9 820.6 825.0 827.2 824.2 816.9 DAY 12 12 18 23 31 7 5 1 12 1 3 23 MEAN QNH PRESSURE IN HPA 1017.7 1018.9 1016.0 1018.5 1016.9 1012.7 1011.8 1013.1 1016.2 1021.4 1023.0 1020.7 1017.2 MAX. QNH PRESSURE IN HPA 1021.7 1023.3 1021.5 1022.3 1019.6 1015.3 1014.3 1015.9 1022.3 1027.0 1026.4 1025.4 1027.0 DAY 27 8 31 9 8 25 9 30 24 27 28 2 MIN. QNH PRESSURE IN HPA 1013.6 1012.7 1011.8 1014.1 1013.2 1008.1 1010.1 1008.1 1012.5 1017.7 1020.3 1016.8 1008.1 DAY 12 12 18 23 31 7 5 1 12 1 3 23 MEAN QFF PRESSURE IN HPA 1019.1 1019.7 1011.4 1010.5 1003.8 995.4 994.4 996.6 1002.4 1012.0 1017.9 1019.2 1008.5 MAX. QFF PRESSURE IN HPA 1025.2 1028.4 1020.9 1018.8 1011.3 997.7 997.5 1001.2 1010.9 1018.8 1024.3 1023.7 1028.4 DAY 19 8 31 4 2 12 28 30 24 27 26 18 MIN. QFF PRESSURE IN HPA 1011.9 1011.1 1006.5 1005.5 996.9 991.9 991.3 991.3 997.3 1006.2 1012.3 1014.7 991.3 DAY 12 23 27 29 31 7 5 1 12 2 3 5 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 825.9 827.1 824.5 826.9 825.5 821.9 821.7 822.4 824.8 829.2 830.5 828.2 825.7 MAX. QFE PRESSURE IN HPA 829.1 831.6 828.6 830.0 828.0 824.3 824.2 825.0 831.2 833.5 833.4 832.3 833.5 DAY 9 20 31 8 5 3 10 30 23 27 8 3 MIN. QFE PRESSURE IN HPA 821.8 822.1 821.2 823.2 823.0 818.2 819.4 817.4 822.1 825.9 827.7 824.9 817.4 DAY 4 12 20 29 30 7 31 1 12 10 24 23 MEAN QNH PRESSURE IN HPA 1018.7 1020.1 1017.1 1020.0 1018.2 1014.0 1013.7 1014.6 1017.5 1022.7 1024.2 1021.5 1018.5 MAX. QNH PRESSURE IN HPA 1022.6 1025.5 1022.0 1023.6 1021.3 1016.9 1016.8 1017.7 1025.1 1027.8 1027.7 1026.4 1027.8 DAY 9 20 31 8 5 3 10 30 23 27 8 3 MIN. QNH PRESSURE IN HPA 1013.9 1014.3 1013.2 1015.6 1015.3 1009.6 1011.1 1008.7 1014.3 1018.8 1020.9 1017.6 1008.7 DAY 4 12 20 29 30 7 31 1 12 10 24 23 MEAN QFF PRESSURE IN HPA 1019.5 1020.0 1011.3 1010.9 1004.2 996.4 995.6 997.5 1002.7 1011.6 1017.7 1019.1 1008.9 MAX. QFF PRESSURE IN HPA 1027.6 1029.7 1019.6 1016.8 1013.5 999.2 999.3 1002.8 1013.5 1017.5 1023.0 1024.1 1029.7 DAY 19 7 31 8 1 2 21 30 23 27 28 18 MIN. QFF PRESSURE IN HPA 1012.3 1008.6 1005.6 1005.0 997.1 991.8 992.0 990.8 997.4 1005.1 1012.9 1014.8 990.8 DAY 4 22 27 29 29 7 3 1 7 10 6 31 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 825.8 827.4 824.7 827.0 825.9 822.4 822.2 822.8 825.1 829.4 830.6 828.2 826.0 MAX. QFE PRESSURE IN HPA 829.6 832.1 829.0 830.4 829.0 825.0 824.9 825.0 830.5 833.7 833.2 832.0 833.7 DAY 9 20 31 10 8 2 10 26 23 27 28 1 MIN. QFE PRESSURE IN HPA 822.5 822.6 821.2 822.8 823.3 818.9 819.0 817.9 822.1 825.8 827.4 824.9 817.9 DAY 4 12 18 29 27 7 31 1 12 1 24 23 MEAN QNH PRESSURE IN HPA 1018.7 1020.5 1017.4 1020.1 1018.8 1014.7 1014.4 1015.1 1017.9 1022.9 1024.3 1021.5 1018.8 MAX. QNH PRESSURE IN HPA 1023.2 1026.1 1022.4 1024.1 1022.4 1017.7 1017.6 1017.7 1024.2 1028.0 1027.4 1026.0 1028.0 DAY 9 20 31 10 8 2 10 26 23 27 28 1 MIN. QNH PRESSURE IN HPA 1014.7 1014.9 1013.2 1015.1 1015.7 1010.5 1010.6 1009.3 1014.3 1018.7 1020.6 1017.6 1009.3 DAY 4 12 18 29 27 7 31 1 12 1 24 23 MEAN QFF PRESSURE IN HPA 1018.1 1019.5 1011.1 1010.2 1004.3 996.6 995.9 997.5 1002.4 1011.0 1017.0 1018.4 1008.5 MAX. QFF PRESSURE IN HPA 1027.4 1028.4 1021.1 1016.5 1013.5 1000.4 999.3 1002.1 1011.7 1017.2 1021.6 1023.5 1028.4 DAY 18 7 31 1 1 2 20 30 23 27 28 18 MIN. QFF PRESSURE IN HPA 1011.1 1009.7 1005.1 1005.0 997.6 992.5 992.7 990.7 997.2 1004.0 1012.8 1013.3 990.7 DAY 2 22 27 29 30 7 3 1 12 1 6 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SIRJAN (40851) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 55 41 E DATA PROCESSING CENTER ELEVATION 1739.4 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.0 7.8 12.2 16.9 24.3 28.1 29.5 29.0 25.6 18.1 11.8 7.1 17.9 MINIMUN AIR TEMPERATURE (C) -0.4 1.8 3.9 8.7 14.7 18.8 21.7 21.0 16.7 9.1 2.2 -1.3 9.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 9 24 17 4 0 0 0 54 DAYS WITH MINIMUM TEMP. <=-4 6 5 1 0 0 0 0 0 0 0 0 6 18 DAYS WITH FREEZING MIN.<= 0 20 11 7 0 0 0 0 0 0 0 4 21 63 TEMPERATURE RECORDS LOWEST(C) -7.5 -5.0 -4.0 3.5 4.6 12.5 17.0 16.5 9.0 2.0 -2.0 -11.0 -11.0 DAY 13 12 22 2 14 2 19 16 30 31 30 29 MAXIMUM AIR TEMPERATURE (C) 11.4 14.3 20.2 24.8 32.9 36.1 36.7 37.0 34.0 27.1 21.5 16.1 26.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 3 28 29 31 31 29 8 0 0 159 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.0 19.0 27.0 30.0 37.0 40.5 40.0 38.5 37.0 32.5 25.0 21.5 40.5 DAY 7 5 14 15 25 30 2 18 2 2 10 6 DIF. BETWEEN (MAX.-MIN.) (C) 11.8 12.5 16.3 16.1 18.2 17.3 15.0 16.0 17.3 18.0 19.3 17.4 16.3 MEAN DAILY TEMP. (MDT) (C) 5.5 8.0 12.1 16.7 23.8 27.4 29.2 29.0 25.4 18.1 11.9 7.4 17.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 93.3 193.4 253.1 248.5 133.5 3.0 0.0 0.0 924.8 HEATING DEG. DAYS(BASE 18 0C) 387.6 279.5 184.6 60.9 2.0 0.0 0.0 0.0 0.0 29.6 184.1 327.2 1455.5 DEWPOINT (MEAN C) -3.8 -3.5 -6.8 -2.5 -2.1 -2.0 9.5 9.3 6.3 0.6 -3.2 -6.7 -0.4 MIXING RATIO (G/KG) 3.70 3.92 3.06 4.14 4.13 4.38 9.58 9.34 7.62 5.01 3.75 2.96 5.13 VAPOUR PRESSURE (HPA) 4.89 5.16 4.04 5.45 5.44 5.73 12.42 12.14 9.96 6.62 4.97 3.92 6.73 SATURATION DEF. (HPA) 4.28 5.85 11.21 15.06 26.61 34.09 30.09 29.45 24.53 15.56 9.86 6.99 17.80 RELATIVE HUMIDITY (MEAN %) 57 50 30 32 19 15 31 31 31 33 37 40 34 RELATIVE HUMIDITY (MAX. %) 80 75 52 53 32 24 43 46 44 51 54 61 51 RELATIVE HUMIDITY (MIN. %) 33 27 15 16 10 8 20 20 21 21 23 22 20 RELATIVE HUMIDITY (MEAN% 03UTC) 73 70 50 48 30 23 38 42 41 47 53 54 47 RELATIVE HUMIDITY (MEAN% 09UTC) 45 37 19 21 13 11 24 26 23 23 29 30 25 RELATIVE HUMIDITY (MEAN% 15UTC) 46 37 21 22 13 10 28 25 25 25 30 32 26 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 20.4 6.5 2.4 9.2 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 38.6 DAYS WITH PRECIPITATION >=10 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH PRECIPITATION >= 5 1 0 0 1 0 0 0 0 0 0 0 0 2 DAYS WITH PRECIPITATION >= 1 4 4 1 4 0 0 0 0 0 0 0 0 13 DAYS WITH PRECIPITATION 7 5 2 4 0 0 0 1 0 0 0 0 19 GREATEST DAILY PRECIPITATION 10.0 2.0 2.0 5.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 10.0 DAY 28 6 18 1 **