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 ** ** ** 9 ** ** ** ** DAY WITH THUNDER STORM 0 1 0 1 0 0 0 1 0 0 0 0 3 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 4 4 8 4 4 3 0 3 0 0 0 6 36 WIND DIRECTION (PREVAILING) 135 135 225 270 270 45 360 135 270 315 270 225 135 PREVAILING WIND SPEED(KNOTS) 8.9 10.2 11.4 11.0 7.7 10.5 11.9 7.8 8.7 9.5 8.0 13.8 8.4 PREVAILING WIND PERCENT 19.0 21.9 12.9 17.9 12.9 13.3 18.5 14.1 11.7 9.7 9.2 11.7 9.9 CALMS PERCENT OF WIND 40.3 45.1 40.3 48.8 40.3 34.2 30.2 33.9 32.5 51.2 55.4 58.9 42.6 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 187 184 261 255 314 348 18 56 15 287 216 227 270 VECTOR WIND MAGNITUDE(KNOTS) 3.0 2.6 2.5 2.9 1.3 2.5 3.3 0.7 1.4 0.5 0.5 1.9 0.6 WIND STEADINESES (MEAN %) 49.2 43.3 42.4 60.4 22.0 37.3 46.5 11.5 21.9 12.5 15.6 43.2 10.9 WIND SPEED (MEAN KNOTS) 6.1 6.0 5.9 4.8 5.9 6.7 7.1 6.1 6.4 4.0 3.2 4.4 5.5 FASTEST WIND DIRECTION 220 220 270 270 190 360 100 60 330 60 280 230 270 FASTEST WIND SPEED (KNOTS) 29 29 35 39 35 29 19 29 23 19 16 27 39 DAY 16 11 25 17 13 4 1 9 13 8 4 22 DAYS WITH SKY CLEAR (0-2)/8 16 18 23 13 28 29 27 26 30 31 27 19 287 DAYS WITH P.CLOUDY (3-6)/8 10 6 7 15 3 1 4 5 0 0 3 11 65 DAYS WITH CLOUDY (7-8)/8 5 4 1 2 0 0 0 0 0 0 0 1 13 DAYS WITH VISIBILITY =< 2 KM 2 2 1 1 0 0 0 0 0 0 0 0 6 DURATION OF SUNSHINE HOURS 217.0 226.4 285.2 251.3 365.8 351.8 316.5 305.7 318.8 311.4 285.4 128.8 3364.1 ======================================================================================================================= 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 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 827.0 824.4 827.0 825.2 824.1 821.9 820.1 822.1 824.5 829.2 830.1 828.3 825.3 MAX. QFE PRESSURE IN HPA 833.1 830.6 833.8 830.3 828.3 827.4 825.8 825.9 829.6 834.5 836.0 835.7 836.0 DAY-HOUR 26- 9 4- 6 10- 6 3-18 17- 6 4- 6 15- 6 4- 6 26- 6 19- 6 24- 6 5- 6 MIN. QFE PRESSURE IN HPA 820.8 817.7 820.0 819.1 818.5 816.2 814.0 818.8 819.8 823.3 822.4 822.3 814.0 DAY-HOUR 17-12 23-15 27-12 6-12 13-12 30-15 5-15 8-15 3-15 1-12 1-12 27-12 MEAN QNH PRESSURE IN HPA 1020.0 1017.0 1020.1 1018.0 1016.6 1014.1 1011.9 1014.3 1017.1 1022.7 1023.7 1021.6 1018.1 MAX. QNH PRESSURE IN HPA 1027.3 1024.3 1028.1 1024.0 1021.6 1020.6 1018.7 1018.8 1023.2 1029.0 1030.7 1030.4 1030.7 DAY-HOUR 26- 9 4- 6 10- 6 3-18 17- 6 4- 6 15- 6 4- 6 26- 6 19- 6 24- 6 5- 6 MIN. QNH PRESSURE IN HPA 1012.7 1009.0 1011.8 1010.7 1010.0 1007.3 1004.7 1010.4 1011.5 1015.7 1014.6 1014.5 1004.7 DAY-HOUR 17-12 23-15 27-12 6-12 13-12 30-15 5-15 8-15 3-15 1-12 1-12 27-12 MEAN QFF PRESSURE IN HPA 1018.7 1013.6 1013.8 1008.2 1001.9 996.8 993.1 995.8 1001.0 1012.0 1017.6 1019.0 1007.6 MAX. QFF PRESSURE IN HPA 1030.7 1025.4 1023.2 1016.6 1007.9 1006.4 1001.2 1001.9 1010.5 1021.0 1026.8 1033.5 1033.5 DAY-HOUR 26-18 1- 6 23- 3 2- 6 16- 6 2- 3 15- 3 5- 6 26- 3 19- 6 23- 6 29- 6 MIN. QFF PRESSURE IN HPA 1009.2 1005.0 1004.6 999.7 995.1 986.3 984.6 991.2 992.4 1001.5 1007.8 1008.8 984.6 DAY-HOUR 2-12 23-12 25-12 16-12 13- 0 30-15 5-15 19-12 3-12 1-12 1-12 26- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 826.6 824.1 826.8 824.9 823.9 821.8 820.1 821.9 824.3 828.8 829.6 828.1 825.1 MAX. QFE PRESSURE IN HPA 831.0 829.2 832.3 828.2 826.6 826.6 824.7 824.9 827.8 832.5 834.0 834.3 834.3 DAY 27 1 9 4 18 5 15 5 28 20 15 6 MIN. QFE PRESSURE IN HPA 822.2 818.3 820.6 820.0 819.3 818.6 816.2 820.0 821.1 824.8 823.4 822.4 816.2 DAY 18 24 28 10 13 23 5 1 4 1 2 26 MEAN QNH PRESSURE IN HPA 1019.6 1016.7 1019.8 1017.6 1016.4 1014.0 1011.9 1014.0 1016.8 1022.2 1023.1 1021.3 1017.8 MAX. QNH PRESSURE IN HPA 1024.8 1022.7 1026.4 1021.5 1019.6 1019.6 1017.3 1017.6 1021.0 1026.6 1028.4 1028.7 1028.7 DAY 27 1 9 4 18 5 15 5 28 20 15 6 MIN. QNH PRESSURE IN HPA 1014.4 1009.8 1012.5 1011.8 1010.9 1010.1 1007.3 1011.8 1013.1 1017.5 1015.8 1014.6 1007.3 DAY 18 24 28 10 13 23 5 1 4 1 2 26 MEAN QFF PRESSURE IN HPA 1017.5 1012.8 1013.2 1007.9 1001.8 996.9 993.2 995.6 1000.5 1011.2 1016.4 1017.9 1007.1 MAX. QFF PRESSURE IN HPA 1027.7 1023.8 1021.2 1014.2 1005.0 1004.4 999.8 1000.5 1007.4 1017.5 1023.1 1032.9 1032.9 DAY 27 1 23 2 15 5 15 5 28 20 25 29 MIN. QFF PRESSURE IN HPA 1011.3 1005.2 1006.1 1001.0 995.1 990.1 986.7 992.6 992.8 1002.8 1009.2 1008.8 986.7 DAY 2 16 28 16 13 30 2 22 3 2 2 26 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 827.1 824.8 827.5 825.6 824.9 822.9 821.0 822.9 825.3 829.9 830.5 828.8 825.9 MAX. QFE PRESSURE IN HPA 831.3 830.0 832.6 828.8 827.8 826.6 825.1 825.3 828.6 833.2 835.0 834.3 835.0 DAY 27 1 9 3 18 5 15 5 26 19 24 5 MIN. QFE PRESSURE IN HPA 822.3 819.4 822.7 820.8 819.6 819.6 816.2 820.4 822.2 826.1 824.8 823.3 816.2 DAY 18 24 3 10 13 27 5 1 4 1 1 26 MEAN QNH PRESSURE IN HPA 1020.2 1017.5 1020.6 1018.4 1017.6 1015.2 1013.0 1015.2 1018.1 1023.5 1024.2 1022.2 1018.8 MAX. QNH PRESSURE IN HPA 1025.2 1023.6 1026.7 1022.2 1021.0 1019.6 1017.8 1018.1 1022.0 1027.4 1029.6 1028.7 1029.6 DAY 27 1 9 3 18 5 15 5 26 19 24 5 MIN. QNH PRESSURE IN HPA 1014.5 1011.1 1015.0 1012.7 1011.3 1011.3 1007.3 1012.2 1014.4 1019.0 1017.5 1015.7 1007.3 DAY 18 24 3 10 13 27 5 1 4 1 1 26 MEAN QFF PRESSURE IN HPA 1019.7 1014.9 1015.4 1009.2 1003.2 998.6 994.7 997.5 1003.1 1014.2 1020.0 1021.1 1009.3 MAX. QFF PRESSURE IN HPA 1029.7 1025.0 1023.2 1015.6 1006.4 1006.4 1001.2 1001.4 1010.5 1020.9 1026.7 1033.5 1033.5 DAY 27 1 23 2 15 2 15 5 26 20 24 29 MIN. QFF PRESSURE IN HPA 1012.5 1007.6 1009.4 1002.8 996.8 991.9 987.5 993.5 997.2 1005.4 1012.1 1011.0 987.5 DAY 2 6 25 16 13 30 5 1 4 2 1 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 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 828.3 825.9 828.6 826.5 825.7 823.6 821.4 823.6 826.3 831.0 831.8 829.9 826.9 MAX. QFE PRESSURE IN HPA 833.0 830.6 833.8 829.7 828.3 827.4 825.8 825.9 829.6 834.5 836.0 835.7 836.0 DAY 26 4 10 3 17 4 15 4 26 19 24 5 MIN. QFE PRESSURE IN HPA 823.4 819.2 823.5 822.0 819.9 819.9 817.0 821.0 823.0 826.7 826.1 824.6 817.0 DAY 17 16 27 10 13 23 5 1 4 1 1 26 MEAN QNH PRESSURE IN HPA 1021.6 1018.7 1022.0 1019.5 1018.6 1016.0 1013.4 1016.0 1019.2 1024.9 1025.7 1023.5 1019.9 MAX. QNH PRESSURE IN HPA 1027.2 1024.3 1028.1 1023.3 1021.6 1020.6 1018.7 1018.8 1023.2 1029.0 1030.7 1030.4 1030.7 DAY 26 4 10 3 17 4 15 4 26 19 24 5 MIN. QNH PRESSURE IN HPA 1015.8 1010.8 1015.9 1014.1 1011.7 1011.7 1008.2 1013.0 1015.3 1019.7 1019.0 1017.2 1008.2 DAY 17 16 27 10 13 23 5 1 4 1 1 26 MEAN QFF PRESSURE IN HPA 1020.7 1015.6 1015.8 1009.5 1003.6 998.7 994.6 997.5 1003.2 1014.0 1019.6 1021.2 1009.5 MAX. QFF PRESSURE IN HPA 1030.7 1025.4 1022.6 1016.6 1007.9 1005.8 1000.1 1001.9 1010.1 1021.0 1026.8 1033.5 1033.5 DAY 27 1 22 2 16 2 15 5 27 19 23 29 MIN. QFF PRESSURE IN HPA 1013.6 1006.2 1008.6 1001.3 996.5 991.8 987.9 994.4 997.6 1004.9 1013.0 1011.7 987.9 DAY 2 16 27 16 13 30 5 13 4 1 1 26 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 827.2 824.9 827.5 825.7 824.6 822.4 820.2 822.4 824.9 829.6 830.4 828.6 825.7 MAX. QFE PRESSURE IN HPA 833.1 829.5 832.8 830.2 827.6 826.0 824.4 824.3 828.3 833.4 834.8 834.4 834.8 DAY 26 4 9 3 18 4 15 4 26 19 23 5 MIN. QFE PRESSURE IN HPA 822.6 818.3 821.8 820.9 819.5 819.0 816.0 820.2 821.3 825.3 824.0 824.1 816.0 DAY 17 16 27 6 13 30 5 1 4 1 1 26 MEAN QNH PRESSURE IN HPA 1020.3 1017.5 1020.7 1018.5 1017.2 1014.6 1012.1 1014.6 1017.6 1023.1 1024.1 1022.0 1018.5 MAX. QNH PRESSURE IN HPA 1027.3 1023.0 1027.0 1023.9 1020.8 1018.9 1017.0 1016.9 1021.6 1027.7 1029.3 1028.8 1029.3 DAY 26 4 9 3 18 4 15 4 26 19 23 5 MIN. QNH PRESSURE IN HPA 1014.9 1009.8 1013.9 1012.8 1011.2 1010.6 1007.0 1012.0 1013.3 1018.1 1016.5 1016.6 1007.0 DAY 17 16 27 6 13 30 5 1 4 1 1 26 MEAN QFF PRESSURE IN HPA 1018.5 1013.7 1013.6 1008.3 1001.9 996.9 992.7 995.4 1000.8 1011.3 1016.9 1018.2 1007.3 MAX. QFF PRESSURE IN HPA 1029.0 1022.3 1020.2 1015.6 1006.1 1004.5 997.6 999.6 1006.9 1018.8 1024.2 1028.4 1029.0 DAY 26 1 23 3 16 2 15 16 27 19 23 29 MIN. QFF PRESSURE IN HPA 1010.7 1005.0 1006.8 1000.2 995.8 989.0 986.3 991.2 994.5 1002.7 1009.5 1010.7 986.3 DAY 2 16 25 16 13 30 2 8 4 1 1 26 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 825.7 823.1 825.7 824.1 823.0 820.9 818.9 820.8 823.2 827.9 828.8 826.9 824.1 MAX. QFE PRESSURE IN HPA 831.6 827.8 831.1 828.2 826.2 824.7 822.7 822.8 827.0 832.3 833.1 832.5 833.1 DAY 26 4 10 3 18 4 15 4 27 19 14 5 MIN. QFE PRESSURE IN HPA 820.8 817.8 820.0 819.1 818.5 816.9 814.5 819.2 820.0 823.3 822.4 822.3 814.5 DAY 17 24 27 6 13 30 5 19 3 1 1 27 MEAN QNH PRESSURE IN HPA 1018.6 1015.4 1018.5 1016.7 1015.3 1012.9 1010.4 1012.7 1015.5 1021.1 1022.2 1020.0 1016.6 MAX. QNH PRESSURE IN HPA 1025.5 1021.0 1024.9 1021.5 1019.1 1017.3 1015.0 1015.1 1020.1 1026.4 1027.3 1026.6 1027.3 DAY 26 4 10 3 18 4 15 4 27 19 14 5 MIN. QNH PRESSURE IN HPA 1012.7 1009.2 1011.8 1010.7 1010.0 1008.1 1005.3 1010.8 1011.8 1015.7 1014.6 1014.5 1005.3 DAY 17 24 27 6 13 30 5 19 3 1 1 27 MEAN QFF PRESSURE IN HPA 1016.6 1011.5 1011.8 1007.0 1000.7 995.7 991.7 994.1 999.0 1010.0 1015.3 1016.5 1005.8 MAX. QFF PRESSURE IN HPA 1027.3 1019.3 1018.5 1012.6 1005.6 1002.9 997.1 997.8 1005.9 1017.1 1021.7 1026.8 1027.3 DAY 26 1 10 1 16 4 15 15 27 19 23 28 MIN. QFF PRESSURE IN HPA 1009.2 1005.0 1004.6 999.7 995.9 987.1 985.5 991.2 992.4 1001.5 1007.8 1010.2 985.5 DAY 2 23 25 16 13 30 2 19 3 1 1 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 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 826.4 823.5 825.9 824.2 822.7 820.5 818.7 820.7 823.1 828.2 829.3 827.6 824.2 MAX. QFE PRESSURE IN HPA 832.1 828.0 831.1 827.7 825.4 824.7 822.3 823.1 827.3 832.9 833.6 833.2 833.6 DAY 26 3 9 3 16 4 14 4 26 19 14 5 MIN. QFE PRESSURE IN HPA 821.6 817.7 820.1 819.6 819.1 816.2 814.0 818.8 819.8 823.8 822.9 823.0 814.0 DAY 17 23 27 6 12 30 5 8 3 1 1 27 MEAN QNH PRESSURE IN HPA 1019.3 1016.0 1018.8 1016.8 1015.0 1012.3 1010.2 1012.6 1015.5 1021.5 1022.8 1020.7 1016.8 MAX. QNH PRESSURE IN HPA 1026.1 1021.3 1024.9 1020.9 1018.2 1017.3 1014.5 1015.5 1020.4 1027.1 1027.9 1027.4 1027.9 DAY 26 3 9 3 16 4 14 4 26 19 14 5 MIN. QNH PRESSURE IN HPA 1013.7 1009.0 1011.9 1011.3 1010.7 1007.3 1004.7 1010.4 1011.5 1016.3 1015.2 1015.3 1004.7 DAY 17 23 27 6 12 30 5 8 3 1 1 27 MEAN QFF PRESSURE IN HPA 1018.9 1013.3 1013.4 1007.5 1000.6 995.5 991.6 994.7 1000.3 1012.2 1018.4 1019.5 1007.2 MAX. QFF PRESSURE IN HPA 1030.3 1020.2 1020.5 1012.6 1004.7 1003.2 997.9 998.6 1008.4 1019.3 1024.1 1032.1 1032.1 DAY 26 1 21 1 16 2 14 4 26 19 24 28 MIN. QFF PRESSURE IN HPA 1012.5 1005.0 1005.3 1001.7 997.1 986.3 984.6 992.2 993.0 1003.7 1009.7 1011.0 984.6 DAY 2 23 25 16 12 30 5 8 2 1 1 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 827.3 824.5 827.1 825.4 823.9 821.6 820.2 822.1 824.3 829.1 830.0 828.3 825.3 MAX. QFE PRESSURE IN HPA 832.5 829.6 832.3 830.3 826.7 826.1 824.2 825.0 828.2 833.1 834.3 834.1 834.3 DAY 26 3 8 3 17 4 14 4 27 19 14 5 MIN. QFE PRESSURE IN HPA 822.4 819.0 821.8 821.0 820.2 817.5 816.0 820.0 820.7 825.2 823.8 823.3 816.0 DAY 17 23 27 6 12 30 4 20 3 31 1 25 MEAN QNH PRESSURE IN HPA 1020.4 1017.1 1020.2 1018.1 1016.4 1013.6 1012.0 1014.3 1016.9 1022.5 1023.7 1021.6 1018.1 MAX. QNH PRESSURE IN HPA 1026.6 1023.2 1026.4 1024.0 1019.7 1019.0 1016.8 1017.7 1021.5 1027.3 1028.7 1028.5 1028.7 DAY 26 3 8 3 17 4 14 4 27 19 14 5 MIN. QNH PRESSURE IN HPA 1014.6 1010.6 1013.9 1013.0 1012.0 1008.8 1007.0 1011.8 1012.6 1017.9 1016.3 1015.7 1007.0 DAY 17 23 27 6 12 30 4 20 3 31 1 25 MEAN QFF PRESSURE IN HPA 1019.5 1013.9 1013.9 1008.1 1001.5 996.3 993.1 995.9 1001.0 1011.8 1017.7 1019.4 1007.7 MAX. QFF PRESSURE IN HPA 1030.7 1020.7 1021.9 1015.3 1005.6 1004.0 999.1 1000.7 1008.0 1019.8 1023.5 1032.7 1032.7 DAY 26 8 22 3 16 1 14 4 28 19 23 28 MIN. QFF PRESSURE IN HPA 1014.2 1005.9 1007.7 1001.1 996.1 987.9 986.6 992.0 995.3 1003.8 1010.5 1010.8 986.6 DAY 1 23 27 15 12 30 4 20 3 1 1 25 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 827.2 824.5 827.4 825.5 824.3 821.9 820.6 822.6 824.5 829.2 830.3 828.6 825.6 MAX. QFE PRESSURE IN HPA 833.0 830.0 832.9 829.2 827.2 826.6 824.7 825.6 828.6 832.8 834.8 834.6 834.8 DAY 26 3 8 3 17 4 14 4 27 19 14 5 MIN. QFE PRESSURE IN HPA 822.6 819.0 821.2 821.0 820.1 818.0 816.4 820.8 821.3 824.6 824.0 823.0 816.4 DAY 17 23 27 9 12 30 1 6 3 31 1 25 MEAN QNH PRESSURE IN HPA 1020.4 1017.2 1020.5 1018.3 1016.9 1014.1 1012.4 1014.8 1017.1 1022.7 1024.0 1021.9 1018.4 MAX. QNH PRESSURE IN HPA 1027.2 1023.6 1027.1 1022.7 1020.3 1019.6 1017.3 1018.4 1022.0 1027.0 1029.3 1029.1 1029.3 DAY 26 3 8 3 17 4 14 4 27 19 14 5 MIN. QNH PRESSURE IN HPA 1014.9 1010.6 1013.2 1013.0 1011.9 1009.4 1007.5 1012.7 1013.3 1017.2 1016.5 1015.3 1007.5 DAY 17 23 27 9 12 30 1 6 3 31 1 25 MEAN QFF PRESSURE IN HPA 1018.7 1013.2 1013.4 1008.0 1001.6 996.2 993.2 995.8 1000.4 1011.1 1016.9 1018.2 1007.2 MAX. QFF PRESSURE IN HPA 1030.7 1020.0 1021.3 1014.7 1005.0 1004.4 998.7 1000.8 1007.2 1017.9 1023.8 1033.0 1033.0 DAY 26 8 22 3 15 1 14 4 27 19 24 28 MIN. QFF PRESSURE IN HPA 1011.8 1005.8 1006.8 1000.7 995.4 988.5 985.7 992.7 994.7 1004.0 1009.5 1009.1 985.7 DAY 1 23 27 15 12 30 1 12 3 1 1 25 ======================================================================================================================= 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 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.1 6.3 11.2 17.6 22.3 26.9 30.9 28.3 23.9 17.5 10.8 7.5 17.4 MINIMUN AIR TEMPERATURE (C) 0.5 0.4 5.7 9.7 12.4 16.9 21.5 18.4 14.1 8.1 2.3 2.2 9.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 3 19 7 0 0 0 0 29 DAYS WITH MINIMUM TEMP. <=-4 8 7 0 0 0 0 0 0 0 0 0 6 21 DAYS WITH FREEZING MIN.<= 0 14 15 1 0 0 0 0 0 0 0 6 12 48 TEMPERATURE RECORDS LOWEST(C) -14.0 -7.5 -1.0 4.0 5.5 12.5 17.0 11.2 6.4 4.0 -2.0 -7.0 -14.0 DAY 7 15 8 13 24 3 23 25 28 15 17 27 MAXIMUM AIR TEMPERATURE (C) 12.5 12.6 17.6 24.7 30.5 35.6 38.4 36.6 32.7 25.7 19.5 13.9 25.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 18 30 31 31 25 0 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) 17.5 19.5 24.0 31.0 36.0 37.5 41.5 39.0 38.0 28.0 25.4 20.2 41.5 DAY 21 27 23 28 30 4 9 8 9 9 2 9 DIF. BETWEEN (MAX.-MIN.) (C) 12.0 12.2 11.9 15.0 18.1 18.7 16.9 18.2 18.6 17.6 17.2 11.7 15.6 MEAN DAILY TEMP. (MDT) (C) 6.5 6.5 11.6 17.2 21.5 26.3 30.0 27.5 23.4 16.9 10.9 8.1 17.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 6.6 40.0 158.0 277.5 201.3 88.0 0.0 0.0 0.0 771.4 HEATING DEG. DAYS(BASE 18 0C) 355.5 308.0 198.6 55.1 3.8 0.0 0.0 0.0 4.7 38.9 212.5 306.9 1483.9 DEWPOINT (MEAN C) -2.9 -3.8 2.6 1.1 -0.1 4.5 7.5 5.7 1.8 2.3 -2.4 0.2 1.4 MIXING RATIO (G/KG) 4.26 3.88 5.92 5.26 4.89 6.79 8.46 7.44 5.57 5.58 4.02 4.93 5.58 VAPOUR PRESSURE (HPA) 5.61 5.12 7.77 6.93 6.41 8.86 10.97 9.69 7.32 7.38 5.32 6.51 7.32 SATURATION DEF. (HPA) 4.26 4.96 6.13 14.42 22.03 28.49 35.55 30.56 24.28 13.71 8.50 4.52 16.45 RELATIVE HUMIDITY (MEAN %) 58 53 60 38 25 26 25 26 26 38 43 64 40 RELATIVE HUMIDITY (MAX. %) 76 77 85 65 43 38 39 38 41 53 64 85 59 RELATIVE HUMIDITY (MIN. %) 38 33 36 20 14 17 17 16 14 25 26 41 25 RELATIVE HUMIDITY (MEAN% 03UTC) 69 71 79 60 40 34 39 37 39 52 62 77 55 RELATIVE HUMIDITY (MEAN% 09UTC) 48 40 47 26 18 19 22 20 19 28 31 49 31 RELATIVE HUMIDITY (MEAN% 15UTC) 49 43 49 25 17 20 19 19 19 31 37 56 32 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 105.5 17.8 54.1 6.0 0.0 2.0 0.0 0.0 0.0 0.0 7.2 28.6 221.2 DAYS WITH PRECIPITATION >=10 3 0 2 0 0 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 5 5 2 5 1 0 0 0 0 0 0 1 2 16 DAYS WITH PRECIPITATION >= 1 10 6 9 1 0 1 0 0 0 0 1 8 36 DAYS WITH PRECIPITATION 11 7 12 1 0 1 0 0 0 0 1 10 43 GREATEST DAILY PRECIPITATION 29.0 7.0 15.0 6.0 0.0 2.0 0.0 0.0 0.0 0.0 7.2 9.0 29.0 DAY 23 21 1 5 ** 22 ** ** ** ** 24 18 DAY WITH THUNDER STORM 2 0 4 1 1 1 0 0 0 0 0 0 9 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 2 2 DAYS WITH DUST 1 1 1 0 6 2 2 3 1 0 0 0 17 WIND DIRECTION (PREVAILING) 135 135 135 135 225 45 360 360 45 315 135 135 135 PREVAILING WIND SPEED(KNOTS) 8.6 9.4 9.7 8.0 10.9 8.9 16.5 16.4 9.7 8.8 7.7 10.0 8.9 PREVAILING WIND PERCENT 21.8 15.2 20.6 13.3 13.3 10.4 12.6 16.9 12.9 9.3 8.8 27.0 12.7 CALMS PERCENT OF WIND 48.4 39.7 31.9 36.7 40.3 35.4 25.2 31.9 40.8 54.0 70.8 37.9 41.3 NO. OF WIND OBSERVATION 248 224 248 240 248 240 206 248 240 248 240 248 2878 VECTOR WIND DIRECTION (MEAN) 175 186 182 233 260 341 344 2 359 337 165 163 219 VECTOR WIND MAGNITUDE(KNOTS) 2.5 2.6 2.8 1.9 2.6 0.9 1.5 3.3 2.1 1.0 0.5 3.6 0.5 WIND STEADINESES (MEAN %) 49.0 43.3 40.6 33.9 43.3 14.5 18.8 44.6 37.5 24.4 21.7 58.1 8.6 WIND SPEED (MEAN KNOTS) 5.1 6.0 6.9 5.6 6.0 6.2 8.0 7.4 5.6 4.1 2.3 6.2 5.8 FASTEST WIND DIRECTION 220 220 340 10 270 260 360 360 350 10 250 130 260 FASTEST WIND SPEED (KNOTS) 29 27 29 29 29 31 29 29 23 23 19 23 31 DAY 25 4 20 1 18 22 21 9 26 13 16 2 DAYS WITH SKY CLEAR (0-2)/8 15 10 11 18 21 28 31 30 29 23 23 9 248 DAYS WITH P.CLOUDY (3-6)/8 10 11 11 9 9 2 0 1 1 8 6 18 86 DAYS WITH CLOUDY (7-8)/8 6 7 9 3 1 0 0 0 0 0 1 4 31 DAYS WITH VISIBILITY =< 2 KM 0 1 0 0 2 0 0 0 0 0 0 1 4 DURATION OF SUNSHINE HOURS ****** ****** 204.9 276.9 315.6 349.9 355.0 345.9 311.6 271.3 258.3 166.6 ****** ======================================================================================================================= 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 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 827.1 826.6 825.0 826.2 823.2 822.0 819.9 821.4 825.9 829.2 829.9 828.1 825.4 MAX. QFE PRESSURE IN HPA 833.0 834.7 830.5 831.3 828.0 827.2 824.9 825.5 830.5 833.5 834.8 835.7 835.7 DAY-HOUR 12- 6 16- 6 18- 6 18- 6 9- 6 23- 6 1- 6 31- 6 28- 6 20- 6 14- 6 7- 6 MIN. QFE PRESSURE IN HPA 819.0 819.5 818.6 820.6 818.8 817.0 813.6 817.3 821.0 825.7 823.9 822.2 813.6 DAY-HOUR 26- 0 8-12 7- 0 12-12 28-15 11-15 14- 9 11-12 3-12 15-12 8-12 22-12 MEAN QNH PRESSURE IN HPA 1020.2 1019.6 1017.7 1019.1 1015.6 1014.1 1011.6 1013.5 1018.8 1022.7 1023.5 1021.4 1018.2 MAX. QNH PRESSURE IN HPA 1027.2 1029.2 1024.2 1025.2 1021.3 1020.3 1017.6 1018.3 1024.2 1027.8 1029.3 1030.4 1030.4 DAY-HOUR 12- 6 16- 6 18- 6 18- 6 9- 6 23- 6 1- 6 31- 6 28- 6 20- 6 14- 6 7- 6 MIN. QNH PRESSURE IN HPA 1010.6 1011.2 1010.1 1012.5 1010.4 1008.2 1004.2 1008.6 1013.0 1018.5 1016.4 1014.4 1004.2 DAY-HOUR 26- 0 8-12 7- 0 12-12 28-15 11-15 14- 9 11-12 3-12 15-12 8-12 22-12 MEAN QFF PRESSURE IN HPA 1018.2 1017.4 1011.6 1008.7 1002.0 997.3 993.0 995.7 1004.1 1012.4 1018.1 1018.2 1008.1 MAX. QFF PRESSURE IN HPA 1031.2 1032.5 1021.4 1016.5 1010.3 1005.2 1001.4 1002.9 1015.7 1019.0 1024.9 1026.7 1032.5 DAY-HOUR 7- 3 15- 6 18- 3 2- 6 8- 6 23- 3 1- 3 31- 3 28- 6 27- 3 13- 3 8- 6 MIN. QFF PRESSURE IN HPA 1004.9 1006.4 1002.9 1001.6 994.9 990.6 986.0 989.1 996.2 1007.5 1009.6 1010.0 986.0 DAY-HOUR 26- 0 8-12 7- 0 27-12 28-15 11-18 14-15 12-12 8-12 9-12 6-12 1-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 826.7 826.5 824.7 825.5 822.8 821.8 820.4 821.3 825.5 828.8 829.6 827.9 825.1 MAX. QFE PRESSURE IN HPA 832.4 834.2 829.3 829.5 826.1 825.6 822.9 824.1 828.7 831.5 831.8 833.3 834.2 DAY 13 16 30 19 9 23 1 31 28 28 13 8 MIN. QFE PRESSURE IN HPA 819.0 820.9 818.6 821.9 819.1 817.3 818.3 818.8 821.6 826.3 825.9 823.0 817.3 DAY 26 8 7 12 29 12 9 13 4 9 7 26 MEAN QNH PRESSURE IN HPA 1019.7 1019.5 1017.4 1018.3 1015.1 1013.9 1012.2 1013.4 1018.3 1022.2 1023.1 1021.1 1017.8 MAX. QNH PRESSURE IN HPA 1026.5 1028.6 1022.8 1023.0 1019.0 1018.4 1015.2 1016.6 1022.1 1025.4 1025.8 1027.5 1028.6 DAY 13 16 30 19 9 23 1 31 28 28 13 8 MIN. QNH PRESSURE IN HPA 1010.6 1012.8 1010.1 1014.0 1010.7 1008.6 1009.8 1010.4 1013.7 1019.2 1018.8 1015.3 1008.6 DAY 26 8 7 12 29 12 9 13 4 9 7 26 MEAN QFF PRESSURE IN HPA 1017.2 1016.7 1010.8 1007.9 1001.5 997.2 993.2 995.3 1003.0 1011.5 1017.3 1017.4 1007.4 MAX. QFF PRESSURE IN HPA 1028.2 1030.1 1020.0 1013.1 1007.8 1002.2 997.9 1001.5 1012.4 1015.9 1022.5 1025.6 1030.1 DAY 7 16 18 18 9 23 1 24 28 28 28 8 MIN. QFF PRESSURE IN HPA 1004.9 1007.6 1002.9 1002.2 996.3 990.8 989.0 991.1 997.4 1008.1 1011.0 1010.2 989.0 DAY 26 8 7 30 29 12 9 13 4 10 7 26 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 827.2 827.0 825.2 826.7 823.8 822.9 820.9 822.4 826.7 829.9 830.5 828.4 826.0 MAX. QFE PRESSURE IN HPA 831.6 834.4 829.1 830.8 827.2 826.3 824.8 825.0 829.6 832.6 833.3 833.3 834.4 DAY 13 16 18 19 9 1 1 31 28 20 14 8 MIN. QFE PRESSURE IN HPA 819.5 820.9 819.8 823.1 820.5 819.0 815.8 820.3 823.2 827.6 826.7 824.1 815.8 DAY 26 8 1 12 28 12 14 13 26 15 8 19 MEAN QNH PRESSURE IN HPA 1020.3 1020.1 1018.0 1019.7 1016.3 1015.2 1012.8 1014.6 1019.7 1023.5 1024.2 1021.7 1018.8 MAX. QNH PRESSURE IN HPA 1025.5 1028.8 1022.6 1024.6 1020.3 1019.2 1017.5 1017.7 1023.2 1026.7 1027.5 1027.5 1028.8 DAY 13 16 18 19 9 1 1 31 28 20 14 8 MIN. QNH PRESSURE IN HPA 1011.2 1012.8 1011.5 1015.5 1012.4 1010.6 1006.8 1012.1 1015.6 1020.8 1019.7 1016.6 1006.8 DAY 26 8 1 12 28 12 14 13 26 15 8 19 MEAN QFF PRESSURE IN HPA 1019.1 1018.7 1012.7 1010.1 1003.2 999.0 994.3 997.7 1006.4 1015.0 1020.6 1019.4 1009.7 MAX. QFF PRESSURE IN HPA 1031.2 1031.9 1021.4 1016.4 1010.0 1005.2 1001.4 1002.9 1015.5 1019.0 1024.9 1026.3 1031.9 DAY 7 16 18 2 8 23 1 31 28 27 13 8 MIN. QFF PRESSURE IN HPA 1008.0 1008.6 1006.3 1004.7 997.2 993.9 987.1 993.3 999.9 1011.3 1015.2 1013.6 987.1 DAY 26 8 24 28 29 12 14 13 4 4 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 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 828.3 828.0 826.2 827.6 824.7 823.4 821.3 823.0 827.6 831.0 831.6 829.5 826.8 MAX. QFE PRESSURE IN HPA 833.0 834.7 830.5 831.3 828.0 827.2 824.9 825.5 830.5 833.5 834.8 835.7 835.7 DAY 12 16 18 18 9 23 1 31 28 20 14 7 MIN. QFE PRESSURE IN HPA 821.1 821.5 821.0 823.7 821.3 819.7 814.8 820.8 823.6 828.6 827.4 824.5 814.8 DAY 26 8 7 12 28 12 14 13 3 15 8 22 MEAN QNH PRESSURE IN HPA 1021.6 1021.2 1019.2 1020.8 1017.3 1015.8 1013.3 1015.3 1020.8 1024.8 1025.6 1023.0 1019.9 MAX. QNH PRESSURE IN HPA 1027.2 1029.2 1024.2 1025.2 1021.3 1020.3 1017.6 1018.3 1024.2 1027.8 1029.3 1030.4 1030.4 DAY 12 16 18 18 9 23 1 31 28 20 14 7 MIN. QNH PRESSURE IN HPA 1013.1 1013.6 1013.0 1016.2 1013.3 1011.4 1005.6 1012.7 1016.0 1022.0 1020.6 1017.1 1005.6 DAY 26 8 7 12 28 12 14 13 3 15 8 22 MEAN QFF PRESSURE IN HPA 1019.9 1019.3 1013.3 1010.5 1003.8 998.9 995.3 997.5 1006.0 1014.3 1020.0 1020.2 1009.9 MAX. QFF PRESSURE IN HPA 1030.4 1032.5 1021.4 1016.5 1010.3 1004.6 999.7 1001.6 1015.7 1018.7 1024.3 1026.7 1032.5 DAY 7 15 18 2 8 23 1 31 28 27 29 8 MIN. QFF PRESSURE IN HPA 1009.4 1008.5 1007.0 1004.4 998.0 993.0 991.7 993.3 999.3 1011.0 1013.7 1014.5 991.7 DAY 26 8 31 27 29 12 24 12 8 10 7 22 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 827.4 827.1 825.3 826.8 823.8 822.4 820.0 821.7 826.3 829.5 830.1 828.2 825.7 MAX. QFE PRESSURE IN HPA 831.9 834.0 829.8 831.0 826.9 826.0 823.8 824.1 829.2 831.8 833.0 834.5 834.5 DAY 13 15 18 18 9 1 1 31 28 20 13 7 MIN. QFE PRESSURE IN HPA 820.4 820.7 819.4 822.7 820.3 818.9 813.6 819.5 822.5 827.2 825.6 823.0 813.6 DAY 26 8 7 12 28 12 14 11 26 15 8 22 MEAN QNH PRESSURE IN HPA 1020.5 1020.2 1018.1 1019.9 1016.2 1014.6 1011.8 1013.8 1019.3 1023.1 1023.7 1021.4 1018.5 MAX. QNH PRESSURE IN HPA 1025.9 1028.4 1023.4 1024.8 1020.0 1018.9 1016.3 1016.6 1022.7 1025.8 1027.2 1029.0 1029.0 DAY 13 15 18 18 9 1 1 31 28 20 13 7 MIN. QNH PRESSURE IN HPA 1012.2 1012.6 1011.1 1015.0 1012.1 1010.5 1004.2 1011.2 1014.7 1020.3 1018.4 1015.3 1004.2 DAY 26 8 7 12 28 12 14 11 26 15 8 22 MEAN QFF PRESSURE IN HPA 1017.9 1017.4 1011.4 1009.0 1002.1 997.2 993.0 995.2 1003.6 1011.6 1017.2 1017.5 1007.8 MAX. QFF PRESSURE IN HPA 1026.8 1030.0 1019.3 1015.2 1008.0 1002.8 998.2 999.8 1012.5 1015.3 1021.7 1024.8 1030.0 DAY 7 15 18 2 8 25 1 31 28 31 27 7 MIN. QFF PRESSURE IN HPA 1007.8 1007.7 1004.2 1002.7 996.8 992.1 989.5 991.3 998.2 1008.7 1011.6 1011.6 989.5 DAY 26 8 7 28 29 12 8 12 8 6 6 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 826.0 825.4 823.9 825.2 822.3 820.9 818.5 820.0 824.4 827.9 828.6 826.9 824.2 MAX. QFE PRESSURE IN HPA 831.0 832.6 829.3 829.1 825.5 824.9 821.9 822.7 827.8 830.6 831.7 834.2 834.2 DAY 12 15 29 18 8 23 1 31 28 20 13 7 MIN. QFE PRESSURE IN HPA 819.4 819.5 819.7 820.6 819.0 817.5 814.2 817.3 821.0 825.7 823.9 822.2 814.2 DAY 25 8 7 12 28 10 14 11 3 15 8 22 MEAN QNH PRESSURE IN HPA 1018.9 1018.1 1016.4 1017.9 1014.5 1012.8 1010.0 1011.8 1017.0 1021.1 1022.0 1019.9 1016.7 MAX. QNH PRESSURE IN HPA 1024.8 1026.7 1022.8 1022.6 1018.3 1017.6 1014.0 1015.0 1021.0 1024.3 1025.6 1028.6 1028.6 DAY 12 15 29 18 8 23 1 31 28 20 13 7 MIN. QNH PRESSURE IN HPA 1011.1 1011.2 1011.4 1012.5 1010.6 1008.8 1004.9 1008.6 1013.0 1018.5 1016.4 1014.4 1004.9 DAY 25 8 7 12 28 10 14 11 3 15 8 22 MEAN QFF PRESSURE IN HPA 1016.3 1015.4 1009.9 1007.4 1000.9 995.9 991.4 993.6 1001.8 1010.3 1016.0 1016.2 1006.3 MAX. QFF PRESSURE IN HPA 1025.2 1027.9 1017.6 1013.6 1006.6 1002.4 996.0 998.2 1011.0 1014.5 1020.8 1025.0 1027.9 DAY 12 15 17 2 8 23 1 31 28 31 24 7 MIN. QFF PRESSURE IN HPA 1006.2 1006.4 1005.2 1001.6 996.0 991.1 987.7 989.1 996.2 1007.5 1009.6 1010.0 987.7 DAY 25 8 23 27 28 18 8 12 8 9 6 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 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 826.7 825.8 824.2 825.1 822.0 820.7 818.2 819.9 824.6 828.2 829.1 827.7 824.4 MAX. QFE PRESSURE IN HPA 831.7 833.5 829.4 829.2 825.7 825.3 821.6 823.3 828.4 831.1 832.3 835.0 835.0 DAY 12 15 29 18 8 22 1 31 28 20 13 7 MIN. QFE PRESSURE IN HPA 820.4 820.6 821.0 820.6 818.8 817.0 815.0 817.3 821.0 826.0 824.5 823.2 815.0 DAY 26 8 7 12 28 11 14 11 3 9 8 22 MEAN QNH PRESSURE IN HPA 1019.7 1018.7 1016.8 1017.8 1014.2 1012.6 1009.6 1011.7 1017.3 1021.6 1022.6 1020.9 1016.9 MAX. QNH PRESSURE IN HPA 1025.6 1027.8 1022.9 1022.7 1018.5 1018.1 1013.7 1015.7 1021.7 1024.9 1026.4 1029.6 1029.6 DAY 12 15 29 18 8 22 1 31 28 20 13 7 MIN. QNH PRESSURE IN HPA 1012.2 1012.5 1013.0 1012.5 1010.4 1008.2 1005.8 1008.6 1013.0 1018.9 1017.1 1015.6 1005.8 DAY 26 8 7 12 28 11 14 11 3 9 8 22 MEAN QFF PRESSURE IN HPA 1018.5 1017.3 1011.4 1008.1 1001.0 996.2 991.0 994.7 1003.9 1012.8 1018.9 1018.6 1007.7 MAX. QFF PRESSURE IN HPA 1028.0 1031.2 1019.5 1014.0 1008.2 1002.1 996.7 1000.5 1013.6 1018.0 1024.1 1025.7 1031.2 DAY 12 15 17 2 8 22 1 31 28 27 13 7 MIN. QFF PRESSURE IN HPA 1009.4 1009.2 1006.0 1001.7 994.9 990.9 986.0 989.7 997.6 1008.6 1012.3 1012.3 986.0 DAY 24 8 23 28 28 18 14 12 8 4 8 1 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 827.5 826.7 825.2 826.1 823.0 821.8 820.0 821.5 826.0 829.2 829.9 828.5 825.4 MAX. QFE PRESSURE IN HPA 832.4 834.3 829.7 830.7 826.8 826.0 822.6 825.0 829.6 832.2 832.3 834.4 834.4 DAY 13 15 29 17 25 22 1 31 30 16 13 7 MIN. QFE PRESSURE IN HPA 820.6 821.7 821.1 821.4 819.9 817.6 817.3 819.0 821.9 826.9 825.5 824.0 817.3 DAY 25 8 6 12 28 11 8 12 3 9 8 25 MEAN QNH PRESSURE IN HPA 1020.6 1019.7 1018.0 1019.0 1015.3 1013.9 1011.7 1013.6 1018.9 1022.7 1023.5 1021.8 1018.2 MAX. QNH PRESSURE IN HPA 1026.5 1028.7 1023.3 1024.5 1019.8 1018.9 1014.9 1017.7 1023.2 1026.2 1026.4 1028.8 1028.8 DAY 13 15 29 17 25 22 1 31 30 16 13 7 MIN. QNH PRESSURE IN HPA 1012.5 1013.8 1013.1 1013.4 1011.7 1008.9 1008.6 1010.6 1014.0 1020.0 1018.3 1016.5 1008.6 DAY 25 8 6 12 28 11 8 12 3 9 8 25 MEAN QFF PRESSURE IN HPA 1018.8 1017.7 1012.1 1008.5 1001.8 997.0 993.4 995.9 1004.4 1012.2 1018.1 1019.0 1008.2 MAX. QFF PRESSURE IN HPA 1028.2 1032.0 1019.9 1014.9 1009.8 1002.7 997.0 1000.4 1012.8 1016.0 1023.1 1025.5 1032.0 DAY 12 15 17 2 25 23 1 31 27 31 24 7 MIN. QFF PRESSURE IN HPA 1007.4 1009.0 1007.3 1002.1 996.9 990.6 988.7 991.0 998.2 1007.6 1011.1 1013.4 988.7 DAY 25 7 6 28 28 11 8 11 7 9 6 25 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 827.5 826.8 825.4 826.4 823.4 822.3 820.6 821.8 826.2 829.3 829.8 828.3 825.6 MAX. QFE PRESSURE IN HPA 833.0 834.5 829.6 830.8 827.3 826.4 823.0 825.0 829.6 832.0 832.3 833.7 834.5 DAY 12 15 29 17 25 22 1 31 30 16 13 7 MIN. QFE PRESSURE IN HPA 820.7 821.4 819.1 821.8 819.9 818.0 818.6 819.5 822.4 826.9 825.8 823.8 818.0 DAY 25 28 6 12 28 11 8 12 3 8 8 25 MEAN QNH PRESSURE IN HPA 1020.7 1019.8 1018.2 1019.3 1015.8 1014.5 1012.4 1013.9 1019.2 1022.8 1023.4 1021.6 1018.5 MAX. QNH PRESSURE IN HPA 1027.2 1029.0 1023.2 1024.6 1020.4 1019.4 1015.3 1017.7 1023.2 1026.0 1026.4 1028.0 1029.0 DAY 12 15 29 17 25 22 1 31 30 16 13 7 MIN. QNH PRESSURE IN HPA 1012.6 1013.4 1010.7 1013.9 1011.7 1009.4 1010.1 1011.2 1014.6 1020.0 1018.7 1016.3 1009.4 DAY 25 28 6 12 28 11 8 12 3 8 8 25 MEAN QFF PRESSURE IN HPA 1017.9 1017.0 1011.4 1008.3 1001.7 997.2 993.2 995.5 1003.7 1011.5 1016.9 1017.7 1007.7 MAX. QFF PRESSURE IN HPA 1028.2 1030.1 1020.2 1014.4 1010.1 1003.1 996.6 1001.8 1012.2 1016.3 1021.9 1024.4 1030.1 DAY 6 15 17 17 25 22 1 31 30 27 24 7 MIN. QFF PRESSURE IN HPA 1006.6 1007.9 1003.1 1003.0 996.5 991.1 989.6 991.8 998.1 1008.1 1010.0 1011.7 989.6 DAY 25 7 6 29 29 11 8 12 3 10 6 25 ======================================================================================================================= 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 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.9 6.0 8.9 14.8 20.2 27.0 28.9 27.4 21.5 17.1 12.2 7.3 16.2 MINIMUN AIR TEMPERATURE (C) -2.2 -1.3 1.8 7.6 13.0 17.3 19.6 19.2 11.7 8.0 3.4 2.1 8.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 6 14 0 0 0 0 22 DAYS WITH MINIMUM TEMP. <=-4 13 10 4 0 0 0 0 0 0 0 0 1 28 DAYS WITH FREEZING MIN.<= 0 19 16 13 0 0 0 0 0 0 0 4 9 61 TEMPERATURE RECORDS LOWEST(C) -14.0 -12.0 -7.4 1.4 8.8 14.2 16.0 12.0 7.0 4.0 -3.0 -4.0 -14.0 DAY 6 13 13 8 14 17 17 18 13 26 19 7 MAXIMUM AIR TEMPERATURE (C) 8.7 13.4 15.6 21.8 27.2 34.9 36.2 34.8 30.0 25.8 20.9 13.2 23.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 10 30 31 30 18 0 0 0 119 DAYS WITH MAXIMUM TEMP. <= 0 2 0 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS HIGHEST(C) 14.5 19.0 21.0 28.0 32.0 38.0 38.0 37.8 33.0 29.8 24.0 17.5 38.0 DAY 19 25 30 22 30 28 5 2 28 1 14 1 DIF. BETWEEN (MAX.-MIN.) (C) 10.9 14.7 13.8 14.2 14.2 17.6 16.6 15.6 18.3 17.8 17.5 11.1 15.3 MEAN DAILY TEMP. (MDT) (C) 3.3 6.1 8.7 14.7 20.1 26.1 27.9 27.0 20.9 16.9 12.2 7.6 15.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.6 22.0 152.9 214.6 185.7 16.3 2.7 0.0 0.0 595.0 HEATING DEG. DAYS(BASE 18 0C) 457.1 346.4 288.2 107.4 14.1 0.0 0.0 0.0 0.3 52.3 175.4 321.4 1762.4 DEWPOINT (MEAN C) -3.0 -6.1 -4.5 1.8 6.3 6.3 5.8 6.2 -3.2 -0.4 -4.8 -0.1 0.4 MIXING RATIO (G/KG) 3.93 3.22 3.70 5.46 7.50 7.63 7.34 7.86 3.99 4.65 3.40 4.78 5.29 VAPOUR PRESSURE (HPA) 5.19 4.24 4.87 7.18 9.83 9.95 9.56 10.25 5.26 6.14 4.51 6.32 6.94 SATURATION DEF. (HPA) 2.82 5.77 7.13 10.80 15.03 27.63 31.77 27.88 21.83 14.69 10.68 4.28 15.03 RELATIVE HUMIDITY (MEAN %) 68 46 44 46 45 29 25 29 21 33 33 63 40 RELATIVE HUMIDITY (MAX. %) 88 71 70 70 68 43 34 42 35 52 50 84 59 RELATIVE HUMIDITY (MIN. %) 45 24 24 27 26 19 17 18 12 20 18 40 24 RELATIVE HUMIDITY (MEAN% 03UTC) 80 66 63 65 61 41 33 39 32 51 49 77 55 RELATIVE HUMIDITY (MEAN% 09UTC) 59 32 29 32 32 22 19 21 14 22 23 52 30 RELATIVE HUMIDITY (MEAN% 15UTC) 62 35 34 35 34 22 19 22 15 25 28 58 32 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 41.7 0.1 3.2 25.0 53.0 0.0 0.0 1.0 0.0 0.0 0.0 128.9 252.9 DAYS WITH PRECIPITATION >=10 1 0 0 0 2 0 0 0 0 0 0 3 6 DAYS WITH PRECIPITATION >= 5 3 0 0 3 4 0 0 0 0 0 0 5 15 DAYS WITH PRECIPITATION >= 1 9 0 1 4 6 0 0 1 0 0 0 9 30 DAYS WITH PRECIPITATION 10 1 4 4 6 0 0 1 0 0 0 11 37 GREATEST DAILY PRECIPITATION 11.0 0.1 2.0 9.0 27.0 0.0 0.0 1.0 0.0 0.0 0.0 58.0 58.0 DAY 21 10 31 6 11 ** ** 9 ** ** ** 22 DAY WITH THUNDER STORM 0 0 0 0 2 0 0 1 0 0 0 0 3 DAYS WITH SNOW OR SLEET 5 0 0 0 0 0 0 0 0 0 0 0 5 DAYS WITH DUST 3 3 3 4 3 1 0 3 3 0 2 0 25 WIND DIRECTION (PREVAILING) 135 135 225 225 270 225 45 45 360 270 135 135 135 PREVAILING WIND SPEED(KNOTS) 10.8 10.8 11.9 13.2 10.7 8.8 10.4 12.5 14.1 7.7 10.2 10.7 10.3 PREVAILING WIND PERCENT 29.0 18.5 19.0 17.5 15.7 12.5 15.3 13.7 16.3 8.1 14.6 23.0 11.6 CALMS PERCENT OF WIND 31.9 27.2 29.0 35.0 43.1 64.2 37.1 40.3 47.9 70.6 57.9 49.2 44.5 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 165 198 211 223 284 216 13 22 343 211 160 155 206 VECTOR WIND MAGNITUDE(KNOTS) 4.6 4.0 4.1 2.8 2.3 1.4 2.6 2.4 4.3 0.8 1.5 3.4 1.0 WIND STEADINESES (MEAN %) 61.3 47.6 53.9 41.2 37.7 43.7 40.0 36.9 71.7 32.0 38.5 68.0 17.2 WIND SPEED (MEAN KNOTS) 7.5 8.4 7.6 6.8 6.1 3.2 6.5 6.5 6.0 2.5 3.9 5.0 5.8 FASTEST WIND DIRECTION 220 350 260 220 300 300 10 330 330 120 240 130 330 FASTEST WIND SPEED (KNOTS) 29 29 27 35 35 31 23 31 47 16 27 19 47 DAY 31 16 10 18 11 1 1 16 3 7 26 8 DAYS WITH SKY CLEAR (0-2)/8 15 23 15 11 15 29 30 26 30 31 19 10 254 DAYS WITH P.CLOUDY (3-6)/8 8 6 10 16 12 1 1 5 0 0 10 14 83 DAYS WITH CLOUDY (7-8)/8 8 0 6 3 4 0 0 0 0 0 1 7 29 DAYS WITH VISIBILITY =< 2 KM 1 0 0 0 0 0 0 0 0 0 0 0 1 DURATION OF SUNSHINE HOURS 174.3 251.7 209.4 241.5 274.4 344.9 348.1 332.4 325.2 307.4 235.8 169.9 3215.0 ======================================================================================================================= 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 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 826.5 825.0 825.1 825.2 826.1 822.3 820.7 822.6 826.3 828.2 830.4 828.1 825.5 MAX. QFE PRESSURE IN HPA 836.0 830.4 832.6 831.2 830.4 827.8 824.9 827.0 831.1 833.6 835.6 833.0 836.0 DAY-HOUR 10- 6 16- 6 13- 6 26- 6 29- 6 11- 6 6- 6 16- 6 28- 6 30- 6 4- 6 1- 6 MIN. QFE PRESSURE IN HPA 819.7 819.1 818.6 819.0 820.4 814.9 816.1 817.1 821.6 822.5 824.2 822.8 814.9 DAY-HOUR 25-12 11-12 24-15 18-12 4-15 27-15 19-15 2-15 8-12 6-12 27-12 19-12 MEAN QNH PRESSURE IN HPA 1019.5 1017.7 1017.8 1018.0 1019.0 1014.5 1012.6 1014.9 1019.3 1021.5 1024.1 1021.4 1018.3 MAX. QNH PRESSURE IN HPA 1030.7 1024.1 1026.7 1025.1 1024.1 1021.0 1017.6 1020.1 1024.9 1027.9 1030.3 1027.2 1030.7 DAY-HOUR 10- 6 16- 6 13- 6 26- 6 29- 6 11- 6 6- 6 16- 6 28- 6 30- 6 4- 6 1- 6 MIN. QNH PRESSURE IN HPA 1011.4 1010.7 1010.1 1010.6 1012.2 1005.7 1007.2 1008.3 1013.7 1014.7 1016.8 1015.1 1005.7 DAY-HOUR 25-12 11-12 24-15 18-12 4-15 27-15 19-15 2-15 8-12 6-12 27-12 19-12 MEAN QFF PRESSURE IN HPA 1019.8 1015.7 1013.7 1009.5 1006.5 997.7 994.4 997.6 1006.4 1011.5 1017.7 1018.3 1009.1 MAX. QFF PRESSURE IN HPA 1035.6 1027.2 1028.8 1017.5 1014.8 1005.8 1001.0 1005.7 1011.7 1020.4 1025.5 1027.2 1035.6 DAY-HOUR 10- 6 13- 3 13- 3 9- 3 11-15 7- 3 16- 3 16- 3 15- 6 30- 6 19- 3 12- 3 MIN. QFF PRESSURE IN HPA 1007.9 1007.3 1003.5 998.3 1000.6 988.5 989.4 989.3 1000.7 1002.4 1009.4 1009.6 988.5 DAY-HOUR 3- 0 25-12 30-12 18-12 31-21 28- 0 19-15 2-12 8-12 6-12 15-21 4-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 826.0 824.5 824.7 824.8 825.7 822.0 820.6 822.4 826.0 827.7 829.9 827.7 825.2 MAX. QFE PRESSURE IN HPA 833.2 828.8 830.2 829.2 828.6 826.5 823.4 825.3 828.8 832.2 832.6 831.3 833.2 DAY 10 23 13 26 29 7 16 16 21 30 24 1 MIN. QFE PRESSURE IN HPA 821.5 820.3 819.0 819.5 822.3 815.3 817.8 818.0 823.3 823.5 825.0 824.6 815.3 DAY 3 12 25 19 5 28 20 2 5 7 27 20 MEAN QNH PRESSURE IN HPA 1018.9 1017.1 1017.3 1017.5 1018.5 1014.2 1012.5 1014.7 1018.9 1020.9 1023.6 1020.9 1017.9 MAX. QNH PRESSURE IN HPA 1027.4 1022.2 1023.9 1022.7 1022.0 1019.5 1015.8 1018.1 1022.2 1026.2 1026.7 1025.2 1027.4 DAY 10 23 13 26 29 7 16 16 21 30 24 1 MIN. QNH PRESSURE IN HPA 1013.6 1012.1 1010.6 1011.2 1014.5 1006.2 1009.2 1009.4 1015.7 1015.9 1017.7 1017.2 1006.2 DAY 3 12 25 19 5 28 20 2 5 7 27 20 MEAN QFF PRESSURE IN HPA 1018.7 1014.4 1012.7 1008.8 1006.1 997.9 994.3 997.1 1005.7 1010.4 1016.6 1017.4 1008.3 MAX. QFF PRESSURE IN HPA 1031.1 1024.5 1024.7 1016.0 1011.9 1005.0 999.6 1001.8 1008.3 1017.9 1021.7 1024.4 1031.1 DAY 10 13 13 9 12 7 16 17 16 30 19 12 MIN. QFF PRESSURE IN HPA 1007.9 1008.5 1003.8 1000.7 1001.1 988.5 990.2 990.7 1002.5 1002.9 1009.5 1011.0 988.5 DAY 3 11 31 18 27 28 20 2 19 7 16 4 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 826.8 825.4 825.5 825.7 826.5 823.3 821.6 823.4 827.2 828.7 830.9 828.3 826.1 MAX. QFE PRESSURE IN HPA 834.3 829.1 831.3 830.5 829.5 827.4 824.2 826.8 830.1 832.7 834.2 832.1 834.3 DAY 10 24 13 26 29 4 6 16 21 30 4 12 MIN. QFE PRESSURE IN HPA 822.6 821.0 820.9 819.8 823.2 816.9 818.5 819.3 824.5 824.5 826.1 824.8 816.9 DAY 25 11 22 19 4 28 19 2 19 7 27 9 MEAN QNH PRESSURE IN HPA 1019.8 1018.2 1018.2 1018.5 1019.5 1015.7 1013.7 1015.8 1020.3 1022.1 1024.7 1021.6 1019.0 MAX. QNH PRESSURE IN HPA 1028.7 1022.6 1025.2 1024.2 1023.0 1020.6 1016.8 1019.8 1023.7 1026.8 1028.6 1026.1 1028.7 DAY 10 24 13 26 29 4 6 16 21 30 4 12 MIN. QNH PRESSURE IN HPA 1014.9 1013.0 1012.8 1011.5 1015.6 1008.1 1010.0 1010.9 1017.1 1017.1 1019.0 1017.5 1008.1 DAY 25 11 22 19 4 28 19 2 19 7 27 9 MEAN QFF PRESSURE IN HPA 1021.0 1017.2 1015.2 1010.8 1007.5 999.6 996.2 999.3 1008.5 1013.7 1020.0 1019.4 1010.7 MAX. QFF PRESSURE IN HPA 1035.5 1027.2 1028.8 1017.5 1013.6 1005.8 1001.0 1005.7 1011.5 1020.0 1025.5 1027.2 1035.5 DAY 10 13 13 9 14 7 16 16 3 30 19 12 MIN. QFF PRESSURE IN HPA 1012.1 1010.0 1004.6 1002.4 1002.8 990.2 992.6 991.8 1005.1 1004.6 1013.9 1012.0 990.2 DAY 3 11 31 18 27 28 19 2 19 6 16 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 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 827.9 826.6 826.7 826.6 827.3 823.8 822.0 824.0 828.0 829.9 832.0 829.5 827.0 MAX. QFE PRESSURE IN HPA 836.0 830.4 832.6 831.2 830.4 827.8 824.9 827.0 831.1 833.6 835.6 833.0 836.0 DAY 10 16 13 26 29 11 6 16 28 30 4 1 MIN. QFE PRESSURE IN HPA 823.2 822.0 821.6 821.4 823.9 817.6 818.9 820.1 825.2 825.4 826.6 825.7 817.6 DAY 25 11 22 18 4 28 19 2 9 7 27 4 MEAN QNH PRESSURE IN HPA 1021.1 1019.6 1019.7 1019.6 1020.4 1016.2 1014.2 1016.6 1021.3 1023.5 1026.0 1023.0 1020.1 MAX. QNH PRESSURE IN HPA 1030.7 1024.1 1026.7 1025.1 1024.1 1021.0 1017.6 1020.1 1024.9 1027.9 1030.3 1027.2 1030.7 DAY 10 16 13 26 29 11 6 16 28 30 4 1 MIN. QNH PRESSURE IN HPA 1015.6 1014.1 1013.7 1013.4 1016.4 1008.9 1010.5 1011.9 1017.9 1018.2 1019.6 1018.5 1008.9 DAY 25 11 22 18 4 28 19 2 9 7 27 4 MEAN QFF PRESSURE IN HPA 1021.8 1017.9 1015.6 1011.0 1008.0 999.0 995.7 999.3 1008.5 1013.2 1019.7 1020.1 1010.8 MAX. QFF PRESSURE IN HPA 1035.6 1026.2 1028.5 1016.7 1014.3 1005.8 1000.1 1004.3 1011.7 1020.4 1024.4 1027.1 1035.6 DAY 10 13 13 12 14 7 16 16 15 30 19 11 MIN. QFF PRESSURE IN HPA 1013.1 1010.5 1006.9 1001.6 1003.7 990.3 992.5 993.0 1005.3 1005.1 1012.7 1012.5 990.3 DAY 3 11 31 18 27 28 19 2 6 6 16 4 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 826.6 825.5 825.6 825.6 826.5 822.9 821.0 822.9 826.6 828.5 830.6 828.2 825.9 MAX. QFE PRESSURE IN HPA 834.3 829.1 830.9 830.5 830.2 827.0 824.2 826.0 829.5 831.7 834.0 832.0 834.3 DAY 10 16 13 26 10 4 6 15 21 30 4 11 MIN. QFE PRESSURE IN HPA 821.0 821.0 820.8 820.3 822.7 816.7 817.6 819.4 823.9 823.7 825.6 824.0 816.7 DAY 25 11 22 18 4 27 19 2 8 7 26 4 MEAN QNH PRESSURE IN HPA 1019.6 1018.2 1018.4 1018.4 1019.5 1015.2 1012.9 1015.2 1019.6 1021.9 1024.3 1021.5 1018.7 MAX. QNH PRESSURE IN HPA 1028.7 1022.6 1024.7 1024.2 1023.9 1020.1 1016.8 1018.9 1023.0 1025.6 1028.4 1026.0 1028.7 DAY 10 16 13 26 10 4 6 15 21 30 4 11 MIN. QNH PRESSURE IN HPA 1013.0 1013.0 1012.7 1012.1 1015.0 1007.9 1008.9 1011.1 1016.4 1016.2 1018.4 1016.5 1007.9 DAY 25 11 22 18 4 27 19 2 8 7 26 4 MEAN QFF PRESSURE IN HPA 1019.2 1015.6 1013.8 1009.5 1006.8 997.7 994.2 997.3 1005.9 1011.0 1016.8 1017.8 1008.8 MAX. QFF PRESSURE IN HPA 1031.8 1024.2 1024.1 1014.8 1014.1 1004.3 999.0 1001.9 1007.8 1015.9 1021.5 1025.6 1031.8 DAY 10 13 13 27 11 6 16 15 21 25 29 11 MIN. QFF PRESSURE IN HPA 1012.4 1008.2 1006.6 999.6 1001.8 989.6 989.8 991.6 1003.6 1002.8 1010.6 1010.8 989.6 DAY 23 25 22 18 27 27 19 2 8 6 16 4 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 825.4 823.6 823.8 824.0 825.1 821.3 819.6 821.2 825.0 827.0 829.0 826.9 824.3 MAX. QFE PRESSURE IN HPA 832.4 827.7 829.2 829.1 827.9 825.6 822.6 824.4 828.5 830.3 832.4 830.4 832.4 DAY 10 23 13 26 14 6 6 15 28 29 4 11 MIN. QFE PRESSURE IN HPA 819.7 819.1 819.0 819.0 820.8 815.8 816.8 817.4 821.6 822.5 824.2 822.8 815.8 DAY 25 11 24 18 4 27 19 2 8 6 27 19 MEAN QNH PRESSURE IN HPA 1018.2 1016.1 1016.3 1016.5 1017.8 1013.4 1011.3 1013.2 1017.7 1020.0 1022.5 1019.9 1016.9 MAX. QNH PRESSURE IN HPA 1026.5 1020.9 1022.7 1022.6 1021.1 1018.4 1014.9 1017.0 1021.9 1024.0 1026.5 1024.1 1026.5 DAY 10 23 13 26 14 6 6 15 28 29 4 11 MIN. QNH PRESSURE IN HPA 1011.4 1010.7 1010.6 1010.6 1012.7 1006.8 1008.0 1008.7 1013.7 1014.7 1016.8 1015.1 1006.8 DAY 25 11 24 18 4 27 19 2 8 6 27 19 MEAN QFF PRESSURE IN HPA 1018.0 1013.4 1011.7 1007.7 1005.4 996.8 993.0 995.6 1004.4 1009.5 1015.4 1016.4 1007.3 MAX. QFF PRESSURE IN HPA 1029.5 1021.4 1021.9 1013.8 1012.4 1002.1 997.9 1001.4 1007.6 1015.8 1020.3 1023.1 1029.5 DAY 10 13 13 8 11 5 16 31 28 30 29 11 MIN. QFF PRESSURE IN HPA 1011.3 1007.3 1003.5 998.3 1001.0 988.9 990.1 989.3 1000.7 1002.4 1009.7 1009.6 988.9 DAY 3 25 30 18 27 28 19 2 8 6 16 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 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 826.1 824.2 824.1 824.3 825.1 821.0 819.2 821.1 825.2 827.2 829.7 827.7 824.6 MAX. QFE PRESSURE IN HPA 832.6 828.5 829.8 829.5 829.0 825.2 822.0 824.8 828.2 830.8 832.8 831.2 832.8 DAY 10 23 13 26 11 6 6 15 21 29 4 11 MIN. QFE PRESSURE IN HPA 821.0 819.6 818.6 819.1 820.4 814.9 816.1 817.1 822.2 822.9 825.1 823.4 814.9 DAY 25 11 24 18 4 27 19 2 8 6 27 9 MEAN QNH PRESSURE IN HPA 1019.0 1016.8 1016.7 1016.8 1017.8 1013.0 1010.9 1013.1 1018.0 1020.3 1023.3 1021.0 1017.2 MAX. QNH PRESSURE IN HPA 1026.7 1021.9 1023.4 1023.0 1022.4 1017.9 1014.1 1017.5 1021.5 1024.6 1027.0 1025.1 1027.0 DAY 10 23 13 26 11 6 6 15 21 29 4 11 MIN. QNH PRESSURE IN HPA 1013.0 1011.3 1010.1 1010.7 1012.2 1005.7 1007.2 1008.3 1014.4 1015.2 1017.8 1015.8 1005.7 DAY 25 11 24 18 4 27 19 2 8 6 27 9 MEAN QFF PRESSURE IN HPA 1020.1 1015.8 1013.6 1009.0 1005.7 996.8 993.2 996.6 1006.1 1011.9 1018.6 1018.7 1008.8 MAX. QFF PRESSURE IN HPA 1032.3 1024.5 1025.2 1015.4 1014.8 1002.9 997.7 1003.2 1009.0 1017.8 1023.9 1025.8 1032.3 DAY 10 16 12 8 11 6 16 31 25 29 19 11 MIN. QFF PRESSURE IN HPA 1011.3 1009.6 1005.5 999.9 1000.7 988.7 989.4 989.3 1003.0 1003.1 1012.7 1012.1 988.7 DAY 2 25 30 18 26 28 19 2 8 6 27 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 826.8 825.3 825.2 825.6 826.3 822.1 820.6 822.8 826.3 828.2 830.5 828.4 825.7 MAX. QFE PRESSURE IN HPA 833.5 829.6 830.6 829.6 830.0 826.7 823.6 826.2 828.5 832.2 833.3 832.0 833.5 DAY 10 22 12 25 10 6 15 15 21 29 4 11 MIN. QFE PRESSURE IN HPA 822.3 820.7 819.5 820.0 821.7 815.9 817.5 818.6 823.6 824.0 825.1 824.6 815.9 DAY 23 11 24 18 4 27 18 1 4 6 26 9 MEAN QNH PRESSURE IN HPA 1019.8 1018.1 1017.9 1018.4 1019.3 1014.2 1012.4 1015.1 1019.2 1021.5 1024.3 1021.8 1018.5 MAX. QNH PRESSURE IN HPA 1027.8 1023.2 1024.3 1023.2 1023.6 1019.7 1016.0 1019.1 1021.9 1026.2 1027.5 1026.0 1027.8 DAY 10 22 12 25 10 6 15 15 21 29 4 11 MIN. QNH PRESSURE IN HPA 1014.5 1012.6 1011.2 1011.8 1013.8 1006.9 1008.8 1010.1 1016.0 1016.5 1017.8 1017.2 1006.9 DAY 23 11 24 18 4 27 18 1 4 6 26 9 MEAN QFF PRESSURE IN HPA 1020.4 1016.4 1013.8 1009.7 1006.7 996.9 994.1 997.9 1006.4 1011.4 1018.0 1018.9 1009.2 MAX. QFF PRESSURE IN HPA 1032.1 1025.8 1025.7 1016.8 1012.1 1004.0 998.8 1004.7 1010.2 1018.1 1023.3 1025.9 1032.1 DAY 10 16 13 8 14 6 16 31 14 29 19 11 MIN. QFF PRESSURE IN HPA 1011.9 1011.3 1006.0 1000.9 1002.2 988.7 991.0 992.3 1003.3 1004.6 1010.6 1013.0 988.7 DAY 2 11 24 18 31 27 25 1 4 6 15 19 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 826.6 825.2 825.2 825.6 826.3 822.3 821.0 823.1 826.4 828.2 830.6 828.2 825.7 MAX. QFE PRESSURE IN HPA 833.2 829.6 830.8 829.6 829.5 826.5 823.9 826.8 828.9 832.2 833.5 831.7 833.5 DAY 9 22 12 25 28 6 15 31 21 29 4 11 MIN. QFE PRESSURE IN HPA 822.3 821.0 819.5 819.5 822.6 815.9 818.0 818.6 824.0 824.0 825.6 825.0 815.9 DAY 23 11 24 18 4 27 19 1 4 6 26 19 MEAN QNH PRESSURE IN HPA 1019.6 1017.9 1018.0 1018.4 1019.2 1014.5 1012.9 1015.5 1019.4 1021.5 1024.3 1021.5 1018.5 MAX. QNH PRESSURE IN HPA 1027.4 1023.2 1024.6 1023.2 1023.0 1019.5 1016.4 1019.8 1022.3 1026.2 1027.8 1025.6 1027.8 DAY 9 22 12 25 28 6 15 31 21 29 4 11 MIN. QNH PRESSURE IN HPA 1014.5 1013.0 1011.2 1011.2 1014.9 1006.9 1009.4 1010.1 1016.5 1016.5 1018.4 1017.7 1006.9 DAY 23 11 24 18 4 27 19 1 4 6 26 19 MEAN QFF PRESSURE IN HPA 1019.2 1015.3 1013.2 1009.3 1006.3 996.9 994.4 997.8 1005.7 1010.8 1016.9 1017.9 1008.6 MAX. QFF PRESSURE IN HPA 1030.6 1025.3 1025.0 1016.7 1013.3 1003.8 999.2 1004.7 1008.9 1016.9 1022.0 1025.7 1030.6 DAY 9 12 12 8 11 6 15 31 14 31 19 11 MIN. QFF PRESSURE IN HPA 1010.8 1009.8 1006.3 1000.1 1000.6 988.7 990.3 991.2 1003.0 1003.5 1009.4 1012.0 988.7 DAY 2 25 21 18 31 27 19 1 17 5 15 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 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.3 8.1 9.9 16.2 22.4 27.0 28.6 27.4 23.5 16.9 12.5 7.8 17.1 MINIMUN AIR TEMPERATURE (C) 0.4 2.9 3.8 8.5 13.0 16.5 19.5 18.1 13.4 7.8 4.1 -1.4 8.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 10 5 0 0 0 0 16 DAYS WITH MINIMUM TEMP. <=-4 9 2 0 0 0 0 0 0 0 0 0 11 22 DAYS WITH FREEZING MIN.<= 0 15 7 3 0 0 0 0 0 0 0 7 22 54 TEMPERATURE RECORDS LOWEST(C) -9.0 -4.6 -3.2 2.0 8.0 10.0 11.2 11.0 9.6 3.8 -3.0 -6.0 -9.0 DAY 16 8 24 1 1 6 31 1 20 9 21 14 MAXIMUM AIR TEMPERATURE (C) 10.6 13.7 16.2 23.2 30.1 35.0 35.6 34.9 32.1 25.4 21.0 17.8 24.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 14 30 31 31 28 2 0 0 136 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.0 19.0 21.5 28.6 35.5 38.6 39.0 37.0 35.0 30.0 25.4 22.5 39.0 DAY 29 21 19 22 28 21 6 15 2 3 1 20 DIF. BETWEEN (MAX.-MIN.) (C) 10.2 10.8 12.4 14.7 17.1 18.5 16.1 16.8 18.7 17.6 16.9 19.2 15.7 MEAN DAILY TEMP. (MDT) (C) 5.5 8.3 10.0 15.9 21.5 25.8 27.5 26.5 22.8 16.6 12.5 8.2 16.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 43.5 143.4 202.9 171.2 59.5 0.2 0.0 0.0 620.7 HEATING DEG. DAYS(BASE 18 0C) 387.6 272.0 248.6 71.6 3.1 0.0 0.0 0.0 0.0 55.7 164.3 305.2 1508.0 DEWPOINT (MEAN C) -1.2 -0.3 -1.8 -0.2 1.3 3.3 5.3 4.4 1.6 -0.1 -2.5 -6.4 0.3 MIXING RATIO (G/KG) 4.58 4.88 4.42 4.84 5.23 6.12 7.05 6.66 5.41 4.78 4.09 3.02 5.09 VAPOUR PRESSURE (HPA) 6.04 6.43 5.83 6.37 6.89 8.01 9.20 8.71 7.11 6.32 5.41 4.01 6.69 SATURATION DEF. (HPA) 3.27 4.75 6.86 12.97 21.63 29.47 31.57 29.41 23.52 14.21 10.12 7.59 16.28 RELATIVE HUMIDITY (MEAN %) 67 61 50 37 27 24 24 25 25 34 38 40 38 RELATIVE HUMIDITY (MAX. %) 87 85 77 62 45 37 34 38 38 49 57 63 56 RELATIVE HUMIDITY (MIN. %) 46 38 29 18 14 14 17 15 16 22 21 22 23 RELATIVE HUMIDITY (MEAN% 03UTC) 84 81 71 57 42 33 32 35 35 48 55 59 53 RELATIVE HUMIDITY (MEAN% 09UTC) 56 44 35 26 17 16 19 18 19 26 27 28 28 RELATIVE HUMIDITY (MEAN% 15UTC) 61 49 39 24 19 17 19 18 20 29 31 33 30 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 54.1 124.8 19.4 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.3 208.6 DAYS WITH PRECIPITATION >=10 1 4 0 0 0 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 5 3 5 1 0 0 0 0 0 0 0 0 1 10 DAYS WITH PRECIPITATION >= 1 8 5 7 2 0 0 0 0 0 0 0 1 23 DAYS WITH PRECIPITATION 9 8 7 3 0 0 0 0 0 0 0 1 28 GREATEST DAILY PRECIPITATION 32.0 47.0 7.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.3 47.0 DAY 5 5 5 28 ** ** ** ** ** ** ** 25 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 1 0 1 DAYS WITH DUST 0 0 3 1 0 0 2 0 0 0 0 0 6 WIND DIRECTION (PREVAILING) 135 135 135 225 270 270 360 360 360 270 135 135 135 PREVAILING WIND SPEED(KNOTS) 10.1 11.0 9.0 10.2 9.9 7.9 13.0 12.3 11.2 8.0 8.3 8.3 9.3 PREVAILING WIND PERCENT 22.6 28.1 14.5 12.1 13.3 11.8 17.7 15.3 11.3 10.9 10.8 10.1 9.4 CALMS PERCENT OF WIND 46.4 36.2 44.8 51.3 51.2 59.1 52.4 45.2 47.5 55.6 60.8 72.2 52.0 NO. OF WIND OBSERVATION 248 224 248 240 248 237 248 248 240 248 240 248 2917 VECTOR WIND DIRECTION (MEAN) 161 160 207 214 258 302 4 351 343 349 194 146 217 VECTOR WIND MAGNITUDE(KNOTS) 2.9 3.9 2.0 2.1 2.1 0.9 3.3 2.5 1.8 0.5 1.7 1.0 0.5 WIND STEADINESES (MEAN %) 54.7 54.9 35.7 48.8 44.7 24.3 62.3 47.2 36.0 13.5 50.0 43.5 10.9 WIND SPEED (MEAN KNOTS) 5.3 7.1 5.6 4.3 4.7 3.7 5.3 5.3 5.0 3.7 3.4 2.3 4.6 FASTEST WIND DIRECTION 230 180 220 200 250 230 350 320 350 240 230 150 200 FASTEST WIND SPEED (KNOTS) 27 29 27 31 23 19 29 23 19 19 19 14 31 DAY 9 6 3 26 7 2 16 3 5 6 29 4 DAYS WITH SKY CLEAR (0-2)/8 12 13 17 10 23 30 29 26 30 27 18 23 258 DAYS WITH P.CLOUDY (3-6)/8 9 5 8 19 8 0 2 5 0 4 12 7 79 DAYS WITH CLOUDY (7-8)/8 10 10 6 1 0 0 0 0 0 0 0 1 28 DAYS WITH VISIBILITY =< 2 KM 1 0 0 0 0 0 0 0 0 0 0 1 2 DURATION OF SUNSHINE HOURS 170.7 169.4 225.9 251.2 326.5 371.1 364.5 345.2 324.2 294.8 249.0 258.2 3350.7 ======================================================================================================================= 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 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 827.0 827.2 826.3 826.2 825.5 822.6 821.1 823.3 825.3 830.2 829.2 829.8 826.1 MAX. QFE PRESSURE IN HPA 832.8 832.2 832.1 832.2 829.0 827.6 825.9 827.1 829.8 835.5 834.1 835.9 835.9 DAY-HOUR 27- 6 8- 6 31- 6 1- 6 2- 6 23- 6 27- 6 26- 6 30- 6 17- 6 25- 6 27- 6 MIN. QFE PRESSURE IN HPA 818.2 821.4 818.0 819.8 818.1 818.0 816.0 817.7 820.8 824.5 824.6 823.5 816.0 DAY-HOUR 14- 9 4-18 12-12 13-12 29-15 25-15 10-15 12-15 4-12 3-12 14-12 4-12 MEAN QNH PRESSURE IN HPA 1020.0 1020.4 1019.2 1019.2 1018.3 1014.8 1013.0 1015.6 1018.0 1023.9 1022.7 1023.3 1019.0 MAX. QNH PRESSURE IN HPA 1027.0 1026.2 1026.1 1026.2 1022.4 1020.8 1018.8 1020.2 1023.4 1030.2 1028.5 1030.6 1030.6 DAY-HOUR 27- 6 8- 6 31- 6 1- 6 2- 6 23- 6 27- 6 26- 6 30- 6 17- 6 25- 6 27- 6 MIN. QNH PRESSURE IN HPA 1009.6 1013.4 1009.4 1011.5 1009.5 1009.4 1007.0 1009.0 1012.7 1017.1 1017.2 1015.9 1007.0 DAY-HOUR 14- 9 4-18 12-12 13-12 29-15 25-15 10-15 12-15 4-12 3-12 14-12 4-12 MEAN QFF PRESSURE IN HPA 1018.5 1016.8 1014.3 1009.7 1004.7 998.1 995.0 998.5 1003.6 1014.1 1016.0 1020.2 1009.1 MAX. QFF PRESSURE IN HPA 1027.1 1027.5 1021.2 1019.7 1012.6 1003.5 1002.8 1005.0 1010.7 1021.8 1024.6 1029.5 1029.5 DAY-HOUR 27- 3 8- 6 19- 0 1- 3 2- 6 1- 6 28- 3 26- 3 23- 3 30- 3 21- 3 26- 6 MIN. QFF PRESSURE IN HPA 1007.7 1008.9 1004.1 1002.2 993.4 992.5 987.5 991.5 996.8 1005.0 1007.5 1010.8 987.5 DAY-HOUR 9- 9 4-18 22-12 13-12 29-15 25-15 14-15 12-12 4-12 6-12 14-12 3-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 826.6 826.9 825.7 825.9 825.0 822.2 820.8 822.8 824.9 829.8 828.9 829.3 825.7 MAX. QFE PRESSURE IN HPA 831.2 830.8 830.6 829.5 827.6 826.4 824.6 825.5 828.1 833.0 831.7 833.6 833.6 DAY 27 8 19 17 3 23 28 7 19 17 1 27 MIN. QFE PRESSURE IN HPA 820.0 822.3 820.4 820.8 819.5 818.0 816.5 818.7 822.2 825.1 825.8 824.7 816.5 DAY 14 5 22 14 30 26 14 13 5 7 17 5 MEAN QNH PRESSURE IN HPA 1019.6 1019.9 1018.5 1018.8 1017.7 1014.4 1012.7 1015.1 1017.6 1023.4 1022.3 1022.8 1018.6 MAX. QNH PRESSURE IN HPA 1025.1 1024.6 1024.3 1023.0 1020.8 1019.4 1017.2 1018.3 1021.4 1027.2 1025.6 1027.9 1027.9 DAY 27 8 19 17 3 23 28 7 19 17 1 27 MIN. QNH PRESSURE IN HPA 1011.8 1014.5 1012.2 1012.7 1011.2 1009.4 1007.6 1010.2 1014.4 1017.8 1018.7 1017.3 1007.6 DAY 14 5 22 14 30 26 14 13 5 7 17 5 MEAN QFF PRESSURE IN HPA 1017.6 1015.9 1013.3 1009.1 1004.2 998.0 995.0 998.0 1003.1 1013.3 1015.0 1019.0 1008.4 MAX. QFF PRESSURE IN HPA 1023.9 1024.9 1021.2 1015.3 1010.2 1002.5 1001.1 1001.8 1008.5 1018.5 1021.5 1024.7 1024.9 DAY 27 8 19 1 2 23 31 6 20 30 20 26 MIN. QFF PRESSURE IN HPA 1008.1 1009.8 1005.0 1002.9 994.9 993.1 988.6 992.3 998.8 1006.4 1009.1 1011.1 988.6 DAY 9 23 22 13 30 26 14 13 5 6 14 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 826.9 827.4 826.6 826.7 826.0 823.4 821.8 823.9 826.1 830.9 829.8 830.2 826.6 MAX. QFE PRESSURE IN HPA 832.0 831.3 830.6 831.2 828.2 827.3 825.4 826.6 828.5 834.5 832.8 834.6 834.6 DAY 27 8 31 1 3 23 28 7 19 17 24 27 MIN. QFE PRESSURE IN HPA 819.3 822.3 821.2 821.7 821.2 819.6 817.9 820.2 824.0 827.0 826.4 825.3 817.9 DAY 14 5 22 13 30 26 14 13 8 3 14 5 MEAN QNH PRESSURE IN HPA 1020.0 1020.6 1019.6 1019.7 1018.9 1015.8 1013.9 1016.4 1019.0 1024.7 1023.4 1023.8 1019.7 MAX. QNH PRESSURE IN HPA 1026.0 1025.2 1024.3 1025.1 1021.5 1020.4 1018.2 1019.6 1021.9 1029.0 1027.0 1029.1 1029.1 DAY 27 8 31 1 3 23 28 7 19 17 24 27 MIN. QNH PRESSURE IN HPA 1010.9 1014.5 1013.2 1013.8 1013.2 1011.3 1009.3 1012.0 1016.5 1020.1 1019.4 1018.1 1009.3 DAY 14 5 22 13 30 26 14 13 8 3 14 5 MEAN QFF PRESSURE IN HPA 1019.3 1017.7 1015.6 1011.2 1005.9 999.4 996.5 1000.1 1005.8 1016.6 1018.2 1022.5 1010.7 MAX. QFF PRESSURE IN HPA 1027.1 1027.2 1020.2 1019.7 1011.2 1003.1 1002.8 1005.0 1010.7 1021.8 1024.6 1028.6 1028.6 DAY 27 8 24 1 2 23 28 26 23 30 21 27 MIN. QFF PRESSURE IN HPA 1008.1 1009.5 1007.9 1004.9 997.8 994.7 989.8 994.5 1001.4 1008.1 1011.7 1012.8 989.8 DAY 9 23 10 13 30 26 14 13 2 6 14 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 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 828.3 828.6 827.7 827.6 826.9 824.1 822.5 824.9 827.0 832.0 830.9 831.4 827.7 MAX. QFE PRESSURE IN HPA 832.8 832.2 832.1 832.2 829.0 827.6 825.9 827.1 829.8 835.5 834.1 835.9 835.9 DAY 27 8 31 1 2 23 27 26 30 17 25 27 MIN. QFE PRESSURE IN HPA 819.5 823.9 821.9 822.9 822.7 821.1 819.0 821.0 824.2 828.0 827.3 827.0 819.0 DAY 14 5 22 13 29 26 14 13 4 3 14 4 MEAN QNH PRESSURE IN HPA 1021.6 1021.9 1021.0 1020.8 1019.9 1016.6 1014.7 1017.6 1020.1 1026.0 1024.7 1025.3 1020.9 MAX. QNH PRESSURE IN HPA 1027.0 1026.2 1026.1 1026.2 1022.4 1020.8 1018.8 1020.2 1023.4 1030.2 1028.5 1030.6 1030.6 DAY 27 8 31 1 2 23 27 26 30 17 25 27 MIN. QNH PRESSURE IN HPA 1011.2 1016.4 1014.0 1015.2 1015.0 1013.1 1010.6 1013.0 1016.8 1021.3 1020.4 1020.1 1010.6 DAY 14 5 22 13 29 26 14 13 4 3 14 4 MEAN QFF PRESSURE IN HPA 1020.4 1018.6 1015.9 1011.2 1006.2 999.6 996.4 1000.3 1005.5 1015.9 1017.9 1022.2 1010.8 MAX. QFF PRESSURE IN HPA 1026.6 1027.5 1020.1 1019.5 1012.6 1003.5 1002.1 1005.0 1010.6 1020.3 1024.3 1029.5 1029.5 DAY 26 8 31 1 2 1 28 27 30 30 20 26 MIN. QFF PRESSURE IN HPA 1010.0 1012.3 1007.2 1006.3 999.0 995.1 990.6 994.6 1000.5 1008.6 1011.5 1014.6 990.6 DAY 9 5 10 13 29 13 14 13 4 6 14 4 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 827.3 827.8 826.8 826.8 826.1 823.2 821.6 823.8 825.7 830.6 829.4 830.0 826.6 MAX. QFE PRESSURE IN HPA 831.5 831.5 831.0 831.6 828.1 825.8 824.8 826.0 829.0 834.0 832.8 834.5 834.5 DAY 27 8 31 1 3 9 27 26 30 17 2 26 MIN. QFE PRESSURE IN HPA 818.2 824.2 821.0 822.0 821.8 820.3 817.9 820.0 822.9 826.8 825.5 825.3 817.9 DAY 14 17 12 13 29 3 10 12 4 6 14 4 MEAN QNH PRESSURE IN HPA 1020.4 1021.0 1019.8 1019.8 1019.0 1015.5 1013.6 1016.2 1018.5 1024.3 1022.9 1023.6 1019.6 MAX. QNH PRESSURE IN HPA 1025.4 1025.4 1024.8 1025.5 1021.4 1018.7 1017.5 1018.9 1022.4 1028.4 1027.0 1029.0 1029.0 DAY 27 8 31 1 3 9 27 26 30 17 2 26 MIN. QNH PRESSURE IN HPA 1009.6 1016.8 1013.0 1014.1 1013.9 1012.1 1009.3 1011.8 1015.2 1019.8 1018.3 1018.1 1009.3 DAY 14 17 12 13 29 3 10 12 4 6 14 4 MEAN QFF PRESSURE IN HPA 1018.4 1017.0 1014.3 1009.8 1005.1 998.5 995.1 998.6 1003.1 1013.4 1015.1 1019.5 1009.0 MAX. QFF PRESSURE IN HPA 1025.0 1025.5 1018.7 1018.1 1011.2 1001.7 1000.1 1002.9 1008.9 1018.3 1020.8 1025.7 1025.7 DAY 27 8 5 1 2 5 21 27 30 30 20 26 MIN. QFF PRESSURE IN HPA 1007.7 1011.5 1005.8 1004.6 997.2 994.5 989.3 992.9 997.9 1006.7 1008.7 1012.8 989.3 DAY 9 23 22 13 29 15 13 13 4 6 14 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 825.7 826.1 825.2 825.2 824.6 821.7 820.1 822.2 823.9 828.9 827.9 828.4 825.0 MAX. QFE PRESSURE IN HPA 830.0 829.3 829.6 828.9 826.8 825.3 823.0 824.3 827.6 832.4 831.2 832.7 832.7 DAY 6 7 18 16 2 23 20 6 30 16 25 26 MIN. QFE PRESSURE IN HPA 818.9 822.5 818.0 819.8 819.3 819.0 816.4 818.2 820.8 824.5 824.6 823.5 816.4 DAY 14 17 12 13 29 25 10 12 4 3 14 4 MEAN QNH PRESSURE IN HPA 1018.5 1019.0 1017.9 1017.9 1017.2 1013.8 1011.9 1014.3 1016.4 1022.4 1021.1 1021.8 1017.7 MAX. QNH PRESSURE IN HPA 1023.6 1022.8 1023.2 1022.3 1019.8 1018.1 1015.3 1016.9 1020.8 1026.5 1025.1 1026.8 1026.8 DAY 6 7 18 16 2 23 20 6 30 16 25 26 MIN. QNH PRESSURE IN HPA 1010.5 1014.7 1009.4 1011.5 1010.9 1010.6 1007.5 1009.6 1012.7 1017.1 1017.2 1015.9 1007.5 DAY 14 17 12 13 29 25 10 12 4 3 14 4 MEAN QFF PRESSURE IN HPA 1016.5 1015.0 1012.7 1008.4 1003.7 997.2 994.0 997.2 1001.8 1012.1 1013.9 1017.8 1007.5 MAX. QFF PRESSURE IN HPA 1021.8 1021.9 1018.1 1015.3 1009.6 1002.0 999.5 1001.9 1008.0 1016.7 1019.9 1023.1 1023.1 DAY 27 8 7 1 2 23 31 6 30 30 25 26 MIN. QFF PRESSURE IN HPA 1008.2 1009.8 1004.1 1002.2 994.5 993.2 988.1 991.5 996.8 1005.0 1007.5 1010.8 988.1 DAY 9 15 22 13 29 15 13 12 4 6 14 3 ======================================================================================================================= 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 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 826.5 826.4 825.5 825.3 824.4 821.3 819.7 822.1 824.0 829.2 828.4 829.1 825.2 MAX. QFE PRESSURE IN HPA 831.6 830.6 829.9 829.5 826.8 825.3 823.0 824.3 828.1 832.6 831.9 833.5 833.5 DAY 6 7 18 1 2 23 27 18 30 16 25 26 MIN. QFE PRESSURE IN HPA 820.5 821.6 818.0 820.1 818.1 818.0 816.0 817.7 821.0 824.8 825.5 824.3 816.0 DAY 14 4 12 13 29 25 10 12 3 3 14 4 MEAN QNH PRESSURE IN HPA 1019.5 1019.3 1018.3 1018.0 1017.0 1013.4 1011.4 1014.3 1016.5 1022.7 1021.8 1022.6 1017.9 MAX. QNH PRESSURE IN HPA 1025.5 1024.3 1023.5 1023.0 1019.8 1018.1 1015.3 1016.9 1021.4 1026.7 1025.9 1027.8 1027.8 DAY 6 7 18 1 2 23 27 18 30 16 25 26 MIN. QNH PRESSURE IN HPA 1012.4 1013.7 1009.4 1011.9 1009.5 1009.4 1007.0 1009.0 1013.0 1017.5 1018.3 1016.9 1007.0 DAY 14 4 12 13 29 25 10 12 3 3 14 4 MEAN QFF PRESSURE IN HPA 1018.7 1016.3 1014.3 1009.6 1003.9 996.8 993.9 997.9 1003.2 1014.4 1016.7 1021.1 1008.9 MAX. QFF PRESSURE IN HPA 1025.4 1024.2 1019.0 1018.2 1010.0 1001.9 999.6 1002.9 1010.5 1020.0 1023.4 1026.4 1026.4 DAY 26 8 7 1 2 23 27 26 30 30 30 26 MIN. QFF PRESSURE IN HPA 1010.0 1009.9 1005.7 1003.5 993.4 992.5 987.5 992.7 998.0 1005.5 1010.7 1013.9 987.5 DAY 8 4 12 13 29 25 14 12 2 3 14 2 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 827.4 827.4 826.4 826.3 825.5 822.4 820.8 823.1 825.3 830.2 829.2 829.9 826.2 MAX. QFE PRESSURE IN HPA 832.0 831.9 830.6 829.9 828.4 826.1 824.8 825.5 829.6 833.5 832.6 834.5 834.5 DAY 6 7 18 16 2 23 27 31 30 17 1 26 MIN. QFE PRESSURE IN HPA 822.7 821.4 819.0 821.5 819.5 818.6 816.7 818.6 822.2 825.3 826.3 824.8 816.7 DAY 13 4 12 12 29 25 13 12 3 3 6 4 MEAN QNH PRESSURE IN HPA 1020.6 1020.6 1019.3 1019.2 1018.3 1014.6 1012.8 1015.4 1018.0 1023.8 1022.7 1023.6 1019.1 MAX. QNH PRESSURE IN HPA 1026.0 1025.9 1024.3 1023.5 1021.7 1019.0 1017.5 1018.3 1023.2 1027.8 1026.7 1029.0 1029.0 DAY 6 7 18 16 2 23 27 31 30 17 1 26 MIN. QNH PRESSURE IN HPA 1015.0 1013.4 1010.6 1013.6 1011.2 1010.1 1007.9 1010.1 1014.4 1018.1 1019.2 1017.5 1007.9 DAY 13 4 12 12 29 25 13 12 3 3 6 4 MEAN QFF PRESSURE IN HPA 1019.3 1017.2 1014.2 1009.5 1004.5 997.6 994.6 998.2 1003.6 1013.8 1016.0 1020.4 1009.1 MAX. QFF PRESSURE IN HPA 1025.7 1027.0 1019.4 1014.2 1010.4 1002.5 1000.6 1004.2 1010.4 1019.1 1023.6 1027.8 1027.8 DAY 26 7 23 15 2 23 27 26 30 30 30 26 MIN. QFF PRESSURE IN HPA 1010.8 1008.9 1005.4 1004.2 995.3 992.6 988.0 991.8 998.6 1006.3 1011.1 1012.1 988.0 DAY 8 4 12 12 29 25 14 12 3 6 6 4 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 827.2 827.5 826.5 826.4 825.6 822.6 821.3 823.5 825.4 830.3 829.4 829.9 826.3 MAX. QFE PRESSURE IN HPA 832.0 831.7 830.8 830.3 828.3 825.5 825.2 826.0 829.8 833.8 832.5 834.0 834.0 DAY 26 7 18 16 2 21 27 25 30 16 25 26 MIN. QFE PRESSURE IN HPA 820.9 822.8 821.0 821.8 820.5 818.8 817.4 819.1 823.0 826.0 826.1 825.3 817.4 DAY 13 4 21 12 29 25 13 12 3 6 6 4 MEAN QNH PRESSURE IN HPA 1020.3 1020.6 1019.5 1019.4 1018.4 1014.9 1013.3 1016.0 1018.2 1024.0 1022.9 1023.5 1019.2 MAX. QNH PRESSURE IN HPA 1026.0 1025.6 1024.6 1024.0 1021.6 1018.3 1017.9 1018.9 1023.4 1028.1 1026.6 1028.4 1028.4 DAY 26 7 18 16 2 21 27 25 30 16 25 26 MIN. QNH PRESSURE IN HPA 1012.8 1015.1 1013.0 1013.9 1012.4 1010.4 1008.7 1010.7 1015.3 1018.9 1019.0 1018.1 1008.7 DAY 13 4 21 12 29 25 13 12 3 6 6 4 MEAN QFF PRESSURE IN HPA 1018.3 1016.5 1013.9 1009.4 1004.3 997.8 995.0 998.3 1002.9 1013.3 1015.2 1019.4 1008.7 MAX. QFF PRESSURE IN HPA 1025.5 1026.2 1018.8 1014.7 1011.2 1001.4 1001.2 1003.0 1010.0 1018.1 1022.7 1025.5 1026.2 DAY 26 7 23 1 1 1 27 26 30 30 30 17 MIN. QFF PRESSURE IN HPA 1010.0 1009.9 1005.1 1003.9 995.7 993.3 988.8 992.4 998.4 1006.2 1009.3 1011.2 988.8 DAY 13 22 21 12 29 25 13 12 3 4 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 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.9 7.4 11.2 17.9 21.9 27.9 30.4 29.4 21.6 16.6 13.0 6.1 17.4 MINIMUN AIR TEMPERATURE (C) -1.9 -3.1 5.0 10.1 13.7 18.1 21.7 20.8 13.5 9.3 5.2 -0.8 9.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 4 21 19 1 0 0 0 45 DAYS WITH MINIMUM TEMP. <=-4 11 13 0 0 0 0 0 0 0 0 0 11 35 DAYS WITH FREEZING MIN.<= 0 20 25 2 0 0 0 0 0 0 0 2 20 69 TEMPERATURE RECORDS LOWEST(C) -12.0 -12.0 -1.8 4.6 9.0 14.0 16.0 16.8 6.0 3.0 -0.2 -10.0 -12.0 DAY 12 21 3 4 3 11 16 23 23 12 20 27 MAXIMUM AIR TEMPERATURE (C) 13.7 15.8 17.3 24.6 28.9 35.7 38.1 37.1 29.4 24.0 20.7 13.3 24.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 16 30 31 31 14 0 0 0 123 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.0 21.5 23.0 30.0 33.0 38.6 40.5 40.4 36.0 29.0 24.0 19.4 40.5 DAY 1 1 31 26 26 25 21 7 1 1 4 3 DIF. BETWEEN (MAX.-MIN.) (C) 15.6 18.9 12.3 14.5 15.2 17.6 16.4 16.3 15.9 14.7 15.5 14.1 15.6 MEAN DAILY TEMP. (MDT) (C) 5.9 6.4 11.2 17.3 21.3 26.9 29.9 28.9 21.5 16.6 12.9 6.2 17.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.7 40.3 177.8 274.5 246.0 58.8 0.4 0.0 0.0 799.6 HEATING DEG. DAYS(BASE 18 0C) 374.1 325.1 211.9 46.2 3.9 0.0 0.0 0.0 10.4 54.1 151.7 364.2 1541.6 DEWPOINT (MEAN C) -6.7 -9.2 -0.2 -0.6 5.8 3.2 9.5 8.8 1.6 3.3 -0.4 -4.2 0.9 MIXING RATIO (G/KG) 2.98 2.52 4.86 4.66 7.37 6.44 9.78 9.07 5.85 6.16 4.66 3.74 5.67 VAPOUR PRESSURE (HPA) 3.94 3.32 6.41 6.14 9.65 8.38 12.64 11.78 7.68 8.13 6.17 4.95 7.43 SATURATION DEF. (HPA) 6.07 7.87 7.49 15.35 17.93 30.93 32.27 30.85 19.75 11.63 9.53 5.29 16.25 RELATIVE HUMIDITY (MEAN %) 44 34 52 33 39 23 31 30 30 45 44 52 38 RELATIVE HUMIDITY (MAX. %) 67 59 80 57 61 37 46 47 47 70 68 75 60 RELATIVE HUMIDITY (MIN. %) 25 15 30 16 23 13 17 17 17 24 23 29 21 RELATIVE HUMIDITY (MEAN% 03UTC) 62 54 73 52 54 36 42 45 45 66 64 68 55 RELATIVE HUMIDITY (MEAN% 09UTC) 31 21 41 21 27 16 21 21 19 29 28 38 26 RELATIVE HUMIDITY (MEAN% 15UTC) 36 23 41 24 30 16 22 21 23 37 36 45 30 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 0.5 2.0 96.3 4.0 32.0 0.0 1.0 0.6 11.0 33.1 5.0 15.0 200.5 DAYS WITH PRECIPITATION >=10 0 0 4 0 1 0 0 0 0 1 0 1 7 DAYS WITH PRECIPITATION >= 5 0 0 7 0 1 0 0 0 1 2 1 1 13 DAYS WITH PRECIPITATION >= 1 0 1 9 3 2 0 1 0 4 5 1 1 27 DAYS WITH PRECIPITATION 1 1 9 3 2 0 1 1 4 7 1 1 31 GREATEST DAILY PRECIPITATION 0.5 2.0 26.0 2.0 29.0 0.0 1.0 0.6 5.0 16.0 5.0 15.0 29.0 DAY 24 28 10 13 6 ** 10 8 6 7 17 4 DAY WITH THUNDER STORM 0 0 0 1 1 0 0 0 0 4 0 0 6 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 5 0 1 1 0 1 1 0 1 0 1 11 WIND DIRECTION (PREVAILING) 135 225 135 270 225 225 135 135 315 315 135 135 135 PREVAILING WIND SPEED(KNOTS) 10.5 12.8 10.4 8.9 10.1 9.0 9.6 9.4 12.0 10.7 8.7 8.4 9.5 PREVAILING WIND PERCENT 12.5 15.6 23.8 10.8 10.9 9.6 14.9 11.7 11.3 6.0 12.1 10.9 10.2 CALMS PERCENT OF WIND 56.5 43.3 43.1 48.8 58.5 51.7 39.9 47.2 46.7 69.0 67.1 57.7 52.5 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 179 220 161 280 231 292 54 49 345 9 172 195 206 VECTOR WIND MAGNITUDE(KNOTS) 1.0 2.2 3.3 1.0 1.5 1.6 1.6 0.5 1.9 0.5 1.8 1.9 0.6 WIND STEADINESES (MEAN %) 23.3 34.9 55.9 19.6 38.5 36.4 26.2 9.4 35.8 17.2 62.1 47.5 12.8 WIND SPEED (MEAN KNOTS) 4.3 6.3 5.9 5.1 3.9 4.4 6.1 5.3 5.3 2.9 2.9 4.0 4.7 FASTEST WIND DIRECTION 310 350 170 300 230 350 50 320 320 330 310 210 350 FASTEST WIND SPEED (KNOTS) 19 35 29 25 31 21 23 23 21 23 19 19 35 DAY 9 19 12 1 1 10 10 15 23 10 8 1 DAYS WITH SKY CLEAR (0-2)/8 19 21 14 19 17 30 24 27 20 20 17 19 247 DAYS WITH P.CLOUDY (3-6)/8 10 6 8 9 12 0 7 4 10 11 12 10 99 DAYS WITH CLOUDY (7-8)/8 2 1 9 2 2 0 0 0 0 0 1 2 19 DAYS WITH VISIBILITY =< 2 KM 0 0 0 1 0 0 0 0 0 0 0 0 1 DURATION OF SUNSHINE HOURS 242.0 258.2 217.0 288.2 309.0 370.0 328.3 323.1 289.4 285.8 230.5 228.9 3370.4 ======================================================================================================================= 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 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 827.4 824.7 826.6 826.3 825.6 820.5 818.6 820.7 826.9 830.0 829.9 829.3 825.5 MAX. QFE PRESSURE IN HPA 834.0 829.9 831.1 832.5 832.0 824.8 822.2 824.9 834.0 835.2 835.2 833.4 835.2 DAY-HOUR 28- 6 20-18 19- 6 15- 6 15- 6 1- 6 14- 3 15- 6 24- 6 10- 6 1- 6 19- 6 MIN. QFE PRESSURE IN HPA 819.6 818.8 821.5 819.6 821.9 815.6 815.1 815.4 819.0 825.6 823.6 820.0 815.1 DAY-HOUR 25-12 12-12 12-15 3-12 23-15 29-12 20-15 2-12 1-12 4- 0 26-12 4-12 MEAN QNH PRESSURE IN HPA 1020.6 1017.3 1019.5 1019.2 1018.4 1012.3 1010.1 1012.6 1020.0 1023.6 1023.5 1022.7 1018.3 MAX. QNH PRESSURE IN HPA 1028.4 1023.5 1024.9 1026.6 1026.0 1017.5 1014.4 1017.6 1028.4 1029.8 1029.8 1027.7 1029.8 DAY-HOUR 28- 6 20-18 19- 6 15- 6 15- 6 1- 6 14- 3 15- 6 24- 6 10- 6 1- 6 19- 6 MIN. QNH PRESSURE IN HPA 1011.3 1010.4 1013.6 1011.3 1014.0 1006.6 1006.0 1006.3 1010.6 1018.4 1016.0 1011.8 1006.0 DAY-HOUR 25-12 12-12 12-15 3-12 23-15 29-12 20-15 2-12 1-12 4- 0 26-12 4-12 MEAN QFF PRESSURE IN HPA 1018.8 1014.4 1013.6 1008.7 1004.9 994.9 990.7 993.9 1006.8 1013.8 1016.5 1020.8 1008.1 MAX. QFF PRESSURE IN HPA 1029.7 1028.6 1021.9 1019.1 1013.9 1002.1 996.7 1000.4 1019.7 1022.7 1024.1 1031.9 1031.9 DAY-HOUR 28- 6 21- 3 1- 6 5-18 6-12 1- 3 14- 3 23- 6 23- 6 10- 6 20- 3 8- 6 MIN. QFF PRESSURE IN HPA 1009.9 1004.4 1006.6 1001.6 997.8 987.0 983.9 986.3 991.7 1005.9 1009.4 1003.8 983.9 DAY-HOUR 6- 0 12-12 13- 0 3-12 28-12 27-15 21-12 2-12 1-12 2-12 26- 9 4-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 827.2 824.2 825.9 826.0 825.1 820.2 818.7 820.6 826.6 829.6 829.7 828.8 825.2 MAX. QFE PRESSURE IN HPA 832.0 829.3 829.1 829.8 829.5 823.6 821.2 823.0 832.5 832.6 832.7 832.4 832.7 DAY 29 21 31 16 15 1 14 15 24 10 2 20 MIN. QFE PRESSURE IN HPA 821.0 819.7 821.6 820.4 822.1 816.2 815.8 815.8 820.4 825.6 825.6 821.6 815.8 DAY 26 19 13 4 24 29 21 2 1 4 26 4 MEAN QNH PRESSURE IN HPA 1020.3 1016.7 1018.7 1018.8 1017.8 1012.0 1010.3 1012.4 1019.6 1023.2 1023.2 1022.2 1017.9 MAX. QNH PRESSURE IN HPA 1026.0 1022.8 1022.6 1023.4 1023.0 1016.0 1013.2 1015.3 1026.6 1026.7 1026.8 1026.5 1026.8 DAY 29 21 31 16 15 1 14 15 24 10 2 20 MIN. QNH PRESSURE IN HPA 1013.0 1011.4 1013.7 1012.2 1014.3 1007.3 1006.8 1006.8 1012.2 1018.4 1018.4 1013.7 1006.8 DAY 26 19 13 4 24 29 21 2 1 4 26 4 MEAN QFF PRESSURE IN HPA 1017.6 1013.1 1012.5 1008.1 1004.5 994.5 990.6 993.4 1006.0 1013.0 1015.6 1019.5 1007.4 MAX. QFF PRESSURE IN HPA 1026.4 1025.4 1018.2 1015.5 1011.0 999.6 995.7 998.1 1017.2 1018.7 1020.6 1028.5 1028.5 DAY 29 21 3 6 7 10 14 24 24 11 20 8 MIN. QFF PRESSURE IN HPA 1009.9 1006.6 1006.6 1003.2 999.4 988.0 985.0 987.1 993.2 1006.9 1011.2 1004.0 985.0 DAY 6 12 13 4 24 29 21 2 1 3 13 4 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 827.9 825.0 826.8 826.9 826.1 821.3 819.5 821.5 827.6 830.6 830.4 829.4 826.1 MAX. QFE PRESSURE IN HPA 832.4 829.4 830.2 831.0 831.0 824.6 822.2 824.2 833.5 834.0 833.7 832.2 834.0 DAY 28 21 19 16 15 1 14 15 24 10 2 20 MIN. QFE PRESSURE IN HPA 821.4 821.5 823.2 822.4 822.9 817.1 816.7 817.3 821.3 827.2 824.8 821.1 816.7 DAY 26 12 12 4 2 29 21 1 1 4 26 4 MEAN QNH PRESSURE IN HPA 1021.1 1017.7 1019.8 1020.0 1019.0 1013.3 1011.1 1013.5 1020.8 1024.3 1024.1 1023.0 1019.0 MAX. QNH PRESSURE IN HPA 1026.5 1022.9 1023.9 1024.8 1024.8 1017.2 1014.4 1016.8 1027.8 1028.4 1028.0 1026.2 1028.4 DAY 28 21 19 16 15 1 14 15 24 10 2 20 MIN. QNH PRESSURE IN HPA 1013.4 1013.6 1015.6 1014.6 1015.2 1008.3 1007.9 1008.6 1013.3 1020.3 1017.5 1013.1 1007.9 DAY 26 12 12 4 2 29 21 1 1 4 26 4 MEAN QFF PRESSURE IN HPA 1020.8 1016.2 1014.7 1010.3 1006.1 996.3 992.3 995.6 1008.7 1015.7 1018.4 1022.2 1009.8 MAX. QFF PRESSURE IN HPA 1029.3 1028.6 1020.4 1018.4 1012.6 1002.1 996.7 1000.0 1019.4 1022.4 1024.1 1031.3 1031.3 DAY 28 21 3 6 7 1 14 24 24 10 20 27 MIN. QFF PRESSURE IN HPA 1012.5 1007.9 1009.5 1005.9 1001.2 989.4 986.7 989.7 995.7 1008.8 1010.7 1005.1 986.7 DAY 16 12 15 3 24 29 22 2 1 3 26 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 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 829.1 826.3 828.0 827.8 826.9 821.8 819.9 822.2 828.4 831.6 831.5 830.7 827.0 MAX. QFE PRESSURE IN HPA 834.0 829.8 831.1 832.5 832.0 824.8 821.9 824.9 834.0 835.2 835.2 833.4 835.2 DAY 28 26 19 15 15 1 14 15 24 10 1 19 MIN. QFE PRESSURE IN HPA 822.9 821.5 824.1 822.8 824.0 817.6 817.2 818.0 821.8 828.4 825.8 821.1 817.2 DAY 25 12 15 3 11 29 21 1 1 3 26 4 MEAN QNH PRESSURE IN HPA 1022.6 1019.2 1021.3 1021.0 1020.0 1013.9 1011.6 1014.4 1021.7 1025.5 1025.4 1024.4 1020.1 MAX. QNH PRESSURE IN HPA 1028.4 1023.4 1024.9 1026.6 1026.0 1017.5 1014.0 1017.6 1028.4 1029.8 1029.8 1027.7 1029.8 DAY 28 26 19 15 15 1 14 15 24 10 1 19 MIN. QNH PRESSURE IN HPA 1015.2 1013.6 1016.6 1015.1 1016.5 1008.9 1008.5 1009.4 1013.9 1021.7 1018.7 1013.1 1008.5 DAY 25 12 15 3 11 29 21 1 1 3 26 4 MEAN QFF PRESSURE IN HPA 1021.3 1016.3 1015.4 1010.5 1006.2 996.5 992.3 995.6 1008.4 1015.7 1018.2 1022.6 1009.9 MAX. QFF PRESSURE IN HPA 1029.7 1024.9 1021.9 1018.8 1013.4 1001.7 996.1 1000.4 1019.7 1022.7 1023.8 1031.9 1031.9 DAY 28 21 1 6 15 10 14 23 23 10 21 8 MIN. QFF PRESSURE IN HPA 1013.4 1007.6 1010.8 1005.5 1001.3 990.4 986.9 989.6 994.9 1008.9 1010.4 1004.9 986.9 DAY 16 12 15 26 25 29 21 1 1 3 26 4 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 827.7 825.1 827.3 826.8 826.0 821.0 818.7 821.0 827.0 830.1 829.9 829.5 825.8 MAX. QFE PRESSURE IN HPA 833.2 828.6 830.0 831.1 830.5 823.6 820.4 823.9 832.8 833.5 833.8 832.8 833.8 DAY 28 26 18 15 15 9 4 15 24 10 1 19 MIN. QFE PRESSURE IN HPA 820.8 820.8 823.1 821.6 822.6 816.6 816.9 817.0 821.0 827.1 824.6 821.1 816.6 DAY 25 12 12 3 11 29 21 1 1 4 26 4 MEAN QNH PRESSURE IN HPA 1020.9 1017.8 1020.4 1019.8 1018.9 1013.0 1010.3 1012.9 1020.1 1023.7 1023.6 1023.0 1018.7 MAX. QNH PRESSURE IN HPA 1027.4 1022.0 1023.6 1024.9 1024.2 1016.0 1012.2 1016.4 1027.0 1027.8 1028.1 1027.0 1028.1 DAY 28 26 18 15 15 9 4 15 24 10 1 19 MIN. QNH PRESSURE IN HPA 1012.7 1012.7 1015.5 1013.7 1014.9 1007.7 1008.1 1008.2 1013.0 1020.2 1017.2 1013.1 1007.7 DAY 25 12 12 3 11 29 21 1 1 4 26 4 MEAN QFF PRESSURE IN HPA 1018.3 1014.0 1014.1 1008.8 1005.0 995.2 990.5 993.6 1006.1 1013.1 1015.8 1020.6 1007.9 MAX. QFF PRESSURE IN HPA 1028.5 1023.7 1019.4 1016.1 1012.0 999.8 993.8 997.9 1016.6 1019.8 1021.1 1028.9 1028.9 DAY 28 20 1 6 8 2 14 24 24 10 21 8 MIN. QFF PRESSURE IN HPA 1011.2 1006.8 1009.2 1003.3 999.4 988.7 986.0 988.1 993.5 1006.9 1009.4 1006.9 986.0 DAY 16 12 21 26 28 28 21 2 1 1 26 4 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 826.0 823.3 825.5 824.9 824.8 819.5 817.3 819.2 825.5 828.5 828.5 828.0 824.3 MAX. QFE PRESSURE IN HPA 832.0 826.5 827.9 829.4 828.8 822.8 819.5 821.7 831.4 831.7 832.3 831.3 832.3 DAY 28 20 18 15 14 9 13 23 23 10 1 19 MIN. QFE PRESSURE IN HPA 819.6 818.8 821.8 819.6 822.0 815.6 815.2 815.4 819.0 825.8 823.6 820.0 815.2 DAY 25 12 12 3 28 29 21 2 1 4 26 4 MEAN QNH PRESSURE IN HPA 1018.9 1015.7 1018.3 1017.6 1017.4 1011.2 1008.6 1010.8 1018.3 1021.9 1021.9 1021.3 1016.8 MAX. QNH PRESSURE IN HPA 1026.0 1019.5 1021.1 1022.9 1022.2 1015.1 1011.2 1013.8 1025.3 1025.6 1026.4 1025.2 1026.4 DAY 28 20 18 15 14 9 13 23 23 10 1 19 MIN. QNH PRESSURE IN HPA 1011.3 1010.4 1013.9 1011.3 1014.1 1006.6 1006.1 1006.3 1010.6 1018.7 1016.0 1011.8 1006.1 DAY 25 12 12 3 28 29 21 2 1 4 26 4 MEAN QFF PRESSURE IN HPA 1016.2 1012.1 1012.1 1006.9 1004.0 993.7 988.9 991.9 1004.8 1011.8 1014.3 1018.6 1006.3 MAX. QFF PRESSURE IN HPA 1026.3 1021.8 1017.0 1014.6 1013.9 998.9 992.9 996.6 1015.0 1017.9 1019.3 1027.5 1027.5 DAY 28 20 3 15 6 12 14 24 24 11 20 8 MIN. QFF PRESSURE IN HPA 1010.3 1004.4 1007.0 1001.6 997.8 987.1 983.9 986.3 991.7 1005.9 1010.7 1003.8 983.9 DAY 25 12 21 3 28 28 21 2 1 2 14 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 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 826.7 823.9 825.7 825.1 824.7 819.3 817.2 819.3 825.9 829.0 829.3 828.8 824.6 MAX. QFE PRESSURE IN HPA 832.3 828.3 828.2 830.0 828.8 822.3 819.8 821.4 831.8 832.5 832.4 832.2 832.5 DAY 28 28 10 5 14 9 13 15 23 10 1 19 MIN. QFE PRESSURE IN HPA 820.5 819.7 821.5 820.0 821.9 815.8 815.1 815.5 819.6 825.7 825.1 821.0 815.1 DAY 25 12 12 3 23 29 20 1 1 2 26 4 MEAN QNH PRESSURE IN HPA 1019.8 1016.4 1018.6 1017.8 1017.3 1010.9 1008.4 1010.9 1018.7 1022.5 1022.8 1022.2 1017.2 MAX. QNH PRESSURE IN HPA 1026.4 1021.6 1021.5 1023.6 1022.2 1014.5 1011.5 1013.4 1025.8 1026.6 1026.5 1026.2 1026.6 DAY 28 28 10 5 14 9 13 15 23 10 1 19 MIN. QNH PRESSURE IN HPA 1012.4 1011.4 1013.6 1011.8 1014.0 1006.8 1006.0 1006.4 1011.3 1018.5 1017.8 1013.0 1006.0 DAY 25 12 12 3 23 29 20 1 1 2 26 4 MEAN QFF PRESSURE IN HPA 1019.3 1014.9 1013.5 1008.1 1004.3 993.9 989.5 993.0 1006.7 1013.9 1017.1 1021.5 1008.0 MAX. QFF PRESSURE IN HPA 1028.5 1024.3 1018.9 1017.7 1012.7 998.4 993.1 997.4 1018.0 1021.0 1022.4 1030.9 1030.9 DAY 28 20 3 5 6 9 13 24 23 10 20 8 MIN. QFF PRESSURE IN HPA 1011.6 1006.3 1007.6 1002.7 998.7 987.0 985.3 988.0 994.1 1007.1 1012.1 1006.3 985.3 DAY 16 12 12 3 26 27 20 1 1 2 26 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 827.5 825.1 826.7 826.3 825.7 820.3 818.8 820.9 827.2 830.2 830.1 829.5 825.7 MAX. QFE PRESSURE IN HPA 832.6 829.9 829.4 831.6 830.2 823.4 821.3 823.0 832.8 833.5 832.9 832.9 833.5 DAY 28 20 4 5 14 9 13 7 23 9 1 19 MIN. QFE PRESSURE IN HPA 821.1 821.1 821.8 821.0 822.9 817.0 815.7 816.0 821.6 826.4 825.6 821.3 815.7 DAY 25 12 12 3 23 28 20 1 4 3 25 4 MEAN QNH PRESSURE IN HPA 1020.7 1017.8 1019.7 1019.3 1018.5 1012.1 1010.3 1012.8 1020.4 1023.9 1023.8 1023.0 1018.5 MAX. QNH PRESSURE IN HPA 1026.7 1023.5 1022.9 1025.5 1023.9 1015.8 1013.3 1015.3 1027.0 1027.8 1027.1 1027.1 1027.8 DAY 28 20 4 5 14 9 13 7 23 9 1 19 MIN. QNH PRESSURE IN HPA 1013.1 1013.1 1013.9 1013.0 1015.2 1008.2 1006.7 1007.0 1013.7 1019.4 1018.4 1013.3 1006.7 DAY 25 12 12 3 23 28 20 1 4 3 25 4 MEAN QFF PRESSURE IN HPA 1019.3 1014.9 1013.6 1008.7 1004.7 994.6 991.1 994.2 1007.2 1014.1 1016.6 1021.2 1008.4 MAX. QFF PRESSURE IN HPA 1027.9 1026.3 1019.6 1019.1 1011.5 1000.8 994.9 998.5 1018.4 1020.2 1022.0 1031.1 1031.1 DAY 28 20 2 5 6 9 13 22 23 10 21 8 MIN. QFF PRESSURE IN HPA 1011.1 1007.2 1007.0 1003.2 999.2 988.5 986.2 988.4 995.5 1006.8 1010.8 1006.3 986.2 DAY 16 12 12 26 24 27 21 1 1 2 25 4 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 827.4 824.8 826.7 826.4 825.7 820.4 819.0 821.2 827.3 830.2 830.0 829.4 825.7 MAX. QFE PRESSURE IN HPA 832.0 829.2 829.5 831.1 829.8 823.8 821.5 823.7 832.8 833.5 833.3 832.9 833.5 DAY 28 28 18 5 14 9 13 14 23 9 1 19 MIN. QFE PRESSURE IN HPA 821.0 820.6 821.6 820.4 822.9 817.0 816.5 816.5 821.8 826.0 825.8 821.3 816.5 DAY 25 18 12 3 23 28 20 1 1 3 25 4 MEAN QNH PRESSURE IN HPA 1020.5 1017.5 1019.7 1019.3 1018.5 1012.3 1010.6 1013.2 1020.5 1023.9 1023.6 1022.9 1018.5 MAX. QNH PRESSURE IN HPA 1026.0 1022.7 1023.0 1024.9 1023.4 1016.3 1013.6 1016.2 1027.0 1027.8 1027.5 1027.1 1027.8 DAY 28 28 18 5 14 9 13 14 23 9 1 19 MIN. QNH PRESSURE IN HPA 1013.0 1012.5 1013.7 1012.2 1015.2 1008.2 1007.6 1007.6 1013.9 1018.9 1018.7 1013.3 1007.6 DAY 25 18 12 3 23 28 20 1 1 3 25 4 MEAN QFF PRESSURE IN HPA 1017.9 1013.7 1013.3 1008.2 1004.5 994.5 990.7 993.9 1006.6 1013.3 1015.9 1020.5 1007.7 MAX. QFF PRESSURE IN HPA 1026.9 1025.6 1019.2 1017.7 1011.1 1000.5 994.8 997.5 1016.8 1019.8 1021.0 1028.9 1028.9 DAY 28 20 2 5 7 9 13 22 23 9 21 8 MIN. QFF PRESSURE IN HPA 1010.2 1007.5 1006.7 1001.9 999.1 988.9 985.9 988.1 995.3 1006.5 1010.7 1004.6 985.9 DAY 5 12 12 30 23 27 20 1 1 2 25 3 ======================================================================================================================= 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 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.0 7.8 10.8 15.6 20.6 26.8 30.2 28.1 23.8 17.6 11.3 5.9 17.1 MINIMUN AIR TEMPERATURE (C) -0.7 0.7 4.1 8.4 11.7 17.2 21.2 18.8 14.0 8.5 1.2 1.0 8.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 3 16 4 0 0 0 0 23 DAYS WITH MINIMUM TEMP. <=-4 7 2 0 0 0 0 0 0 0 0 4 2 15 DAYS WITH FREEZING MIN.<= 0 20 16 5 0 0 0 0 0 0 0 12 13 66 TEMPERATURE RECORDS LOWEST(C) -5.0 -5.0 -3.5 3.6 8.2 10.0 15.0 15.2 8.5 2.4 -8.4 -4.4 -8.4 DAY 16 26 6 1 11 1 27 13 28 30 28 29 MAXIMUM AIR TEMPERATURE (C) 14.5 13.8 17.0 22.4 28.2 34.0 37.8 35.9 31.8 25.8 20.7 11.3 24.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 8 28 31 31 28 3 0 0 129 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.5 17.4 22.4 26.5 31.8 37.4 40.0 37.5 34.0 30.2 25.4 16.0 40.0 DAY 17 22 26 19 7 13 16 24 10 2 1 2 DIF. BETWEEN (MAX.-MIN.) (C) 15.2 13.1 12.9 14.0 16.5 16.8 16.6 17.1 17.8 17.3 19.5 10.3 15.6 MEAN DAILY TEMP. (MDT) (C) 6.9 7.3 10.5 15.4 19.9 25.6 29.5 27.3 22.9 17.2 10.9 6.2 16.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 5.6 140.7 263.9 196.4 60.1 0.5 0.0 0.0 667.3 HEATING DEG. DAYS(BASE 18 0C) 344.3 300.7 231.2 81.1 0.7 0.0 0.0 0.0 0.0 53.1 211.7 367.3 1590.0 DEWPOINT (MEAN C) -4.2 -2.4 -1.3 2.6 1.3 5.9 5.9 1.7 1.9 0.9 -6.5 1.1 0.6 MIXING RATIO (G/KG) 3.57 4.27 4.62 5.84 5.48 7.63 7.67 5.55 5.53 5.20 3.08 5.15 5.30 VAPOUR PRESSURE (HPA) 4.72 5.62 6.08 7.67 7.21 9.94 9.94 7.26 7.27 6.86 4.08 6.80 6.96 SATURATION DEF. (HPA) 5.84 5.39 7.38 10.79 18.27 26.91 34.88 32.42 23.58 14.61 10.53 2.75 16.11 RELATIVE HUMIDITY (MEAN %) 50 54 49 47 32 29 25 20 26 36 30 75 39 RELATIVE HUMIDITY (MAX. %) 75 78 76 71 54 45 41 33 40 55 46 92 59 RELATIVE HUMIDITY (MIN. %) 26 31 28 28 17 18 12 11 15 20 18 52 23 RELATIVE HUMIDITY (MEAN% 03UTC) 71 73 71 64 48 42 36 29 39 52 44 88 55 RELATIVE HUMIDITY (MEAN% 09UTC) 38 41 34 35 20 22 16 14 18 24 21 63 29 RELATIVE HUMIDITY (MEAN% 15UTC) 39 42 37 36 21 21 16 13 20 31 26 69 31 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 3.2 27.7 52.1 49.4 10.9 0.0 0.0 0.0 0.0 6.0 0.0 63.0 212.3 DAYS WITH PRECIPITATION >=10 0 0 3 2 0 0 0 0 0 0 0 3 8 DAYS WITH PRECIPITATION >= 5 0 3 3 3 1 0 0 0 0 1 0 4 15 DAYS WITH PRECIPITATION >= 1 2 4 5 6 2 0 0 0 0 2 0 7 28 DAYS WITH PRECIPITATION 3 5 6 7 2 0 0 0 0 2 0 7 32 GREATEST DAILY PRECIPITATION 2.0 9.5 18.0 21.0 7.9 0.0 0.0 0.0 0.0 5.0 0.0 21.0 21.0 DAY 25 6 21 23 29 ** ** ** ** 22 ** 12 DAY WITH THUNDER STORM 0 0 0 2 1 0 0 0 0 1 0 0 4 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 0 0 0 2 0 2 0 0 0 4 WIND DIRECTION (PREVAILING) 135 135 135 135 270 270 360 360 270 270 135 135 270 PREVAILING WIND SPEED(KNOTS) 9.4 10.3 9.4 8.1 9.6 9.2 13.4 11.7 9.4 9.2 7.7 10.4 9.0 PREVAILING WIND PERCENT 9.7 11.2 14.5 9.2 11.3 8.3 8.5 15.9 9.2 8.5 6.3 11.7 7.3 CALMS PERCENT OF WIND 65.3 57.1 48.4 58.3 55.2 52.1 50.4 47.8 51.3 75.0 76.7 74.2 59.3 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 245 240 248 240 248 2917 VECTOR WIND DIRECTION (MEAN) 183 206 198 230 322 251 23 8 356 268 189 149 264 VECTOR WIND MAGNITUDE(KNOTS) 0.9 1.3 2.1 0.9 2.4 0.6 0.8 2.9 0.8 0.8 0.3 1.7 0.3 WIND STEADINESES (MEAN %) 27.3 31.0 42.0 23.1 57.1 15.0 15.7 55.8 16.3 38.1 15.8 65.4 7.7 WIND SPEED (MEAN KNOTS) 3.3 4.2 5.0 3.9 4.2 4.0 5.1 5.2 4.9 2.1 1.9 2.6 3.9 FASTEST WIND DIRECTION 220 210 230 30 340 50 120 340 360 280 320 140 360 FASTEST WIND SPEED (KNOTS) 21 21 19 25 21 16 23 19 27 23 14 21 27 DAY 22 9 17 7 26 2 21 3 2 22 16 25 DAYS WITH SKY CLEAR (0-2)/8 21 16 16 10 24 30 27 31 29 28 29 14 275 DAYS WITH P.CLOUDY (3-6)/8 8 6 10 16 7 0 4 0 1 3 1 8 64 DAYS WITH CLOUDY (7-8)/8 2 6 5 4 0 0 0 0 0 0 0 9 26 DAYS WITH VISIBILITY =< 2 KM 0 0 0 1 0 0 0 0 0 0 0 5 6 DURATION OF SUNSHINE HOURS 249.0 204.4 237.7 ****** ****** ****** ****** 362.4 316.2 310.3 298.5 151.7 ****** ======================================================================================================================= 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 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 828.9 826.0 825.7 825.8 826.2 822.1 818.5 821.8 825.6 828.7 829.0 828.6 825.6 MAX. QFE PRESSURE IN HPA 833.9 831.0 832.0 832.0 832.0 828.2 822.7 826.1 831.2 834.5 833.9 832.5 834.5 DAY-HOUR 7- 6 1- 6 3- 6 4- 6 26-18 1- 6 4- 3 25- 6 13- 6 27- 6 15- 6 31- 6 MIN. QFE PRESSURE IN HPA 824.3 820.2 820.0 820.7 820.1 818.0 813.9 817.1 821.0 823.6 822.8 823.5 813.9 DAY-HOUR 1-12 24-12 27-12 15-12 15-15 17-15 16-15 8-12 4-15 15- 0 6-12 25-12 MEAN QNH PRESSURE IN HPA 1022.3 1018.9 1018.5 1018.7 1019.2 1014.3 1009.9 1013.9 1018.4 1022.1 1022.5 1022.0 1018.4 MAX. QNH PRESSURE IN HPA 1028.3 1024.8 1026.0 1026.0 1026.0 1021.5 1015.0 1019.0 1025.1 1029.0 1028.3 1026.6 1029.0 DAY-HOUR 7- 6 1- 6 3- 6 4- 6 26-18 1- 6 4- 3 25- 6 13- 6 27- 6 15- 6 31- 6 MIN. QNH PRESSURE IN HPA 1016.9 1012.0 1011.8 1012.6 1011.9 1009.4 1004.5 1008.3 1013.0 1016.0 1015.1 1015.9 1004.5 DAY-HOUR 1-12 24-12 27-12 15-12 15-15 17-15 16-15 8-12 4-15 15- 0 6-12 25-12 MEAN QFF PRESSURE IN HPA 1019.7 1015.5 1012.9 1009.6 1006.6 997.5 990.8 996.5 1003.7 1011.8 1016.8 1020.0 1008.5 MAX. QFF PRESSURE IN HPA 1027.6 1022.4 1022.5 1017.2 1014.9 1011.1 998.0 1002.0 1009.6 1022.3 1028.2 1029.5 1029.5 DAY-HOUR 8- 3 12- 6 3- 6 1- 6 26-18 1- 3 27- 3 25- 3 29- 3 25- 3 28- 3 31- 6 MIN. QFF PRESSURE IN HPA 1012.0 1006.6 1002.7 1002.2 1001.1 991.3 983.4 990.5 997.1 1003.8 1007.5 1011.5 983.4 DAY-HOUR 25-21 24-12 27- 0 15-12 14-12 22-12 16-12 8-12 5-12 15- 0 6-12 25-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 828.4 825.7 825.1 825.5 825.9 821.9 818.5 821.6 825.4 828.3 828.8 828.3 825.3 MAX. QFE PRESSURE IN HPA 831.8 829.4 830.0 829.0 830.8 826.7 821.9 824.9 828.9 832.7 831.8 830.6 832.7 DAY 8 1 3 11 27 2 4 25 14 27 15 31 MIN. QFE PRESSURE IN HPA 824.3 821.0 820.5 820.8 821.0 819.0 814.6 818.7 821.3 823.6 823.4 825.9 814.6 DAY 26 24 27 25 15 18 17 3 5 15 26 6 MEAN QNH PRESSURE IN HPA 1021.7 1018.6 1017.9 1018.2 1018.8 1014.0 1010.0 1013.7 1018.2 1021.6 1022.2 1021.6 1018.0 MAX. QNH PRESSURE IN HPA 1025.8 1022.9 1023.6 1022.4 1024.6 1019.7 1014.0 1017.6 1022.3 1026.8 1025.8 1024.3 1026.8 DAY 8 1 3 11 27 2 4 25 14 27 15 31 MIN. QNH PRESSURE IN HPA 1016.9 1013.0 1012.4 1012.7 1013.0 1010.6 1005.4 1010.2 1013.3 1016.0 1015.8 1018.8 1005.4 DAY 26 24 27 25 15 18 17 3 5 15 26 6 MEAN QFF PRESSURE IN HPA 1018.4 1014.8 1012.0 1009.0 1006.3 997.3 990.9 996.2 1003.3 1010.9 1015.5 1019.0 1007.8 MAX. QFF PRESSURE IN HPA 1024.2 1019.6 1019.3 1013.6 1013.2 1008.2 996.3 999.1 1007.3 1019.0 1023.3 1024.2 1024.2 DAY 8 11 3 1 27 1 27 26 17 25 30 31 MIN. QFF PRESSURE IN HPA 1012.8 1006.6 1002.7 1003.7 1002.2 991.6 984.2 992.3 997.9 1003.8 1008.8 1012.1 984.2 DAY 26 24 27 17 15 23 17 3 5 15 7 6 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 829.1 826.4 826.0 826.2 826.9 823.0 819.4 822.8 826.3 829.3 829.7 828.9 826.2 MAX. QFE PRESSURE IN HPA 832.1 830.0 830.6 830.2 831.0 827.8 822.7 825.9 830.0 833.5 833.0 831.2 833.5 DAY 7 1 3 4 27 2 4 25 13 27 15 31 MIN. QFE PRESSURE IN HPA 825.6 821.8 821.0 821.8 822.0 820.0 815.2 819.7 822.0 825.0 824.0 824.8 815.2 DAY 26 24 14 17 15 23 17 3 5 15 26 25 MEAN QNH PRESSURE IN HPA 1022.6 1019.4 1018.9 1019.1 1020.0 1015.4 1011.1 1015.1 1019.2 1022.8 1023.3 1022.3 1019.1 MAX. QNH PRESSURE IN HPA 1026.1 1023.6 1024.3 1023.9 1024.8 1021.0 1015.0 1018.8 1023.6 1027.8 1027.2 1025.1 1027.8 DAY 7 1 3 4 27 2 4 25 13 27 15 31 MIN. QNH PRESSURE IN HPA 1018.4 1013.9 1013.0 1013.9 1014.1 1011.8 1006.1 1011.4 1014.1 1017.7 1016.5 1017.5 1006.1 DAY 26 24 14 17 15 23 17 3 5 15 26 25 MEAN QFF PRESSURE IN HPA 1021.3 1016.8 1014.3 1010.7 1007.9 999.1 992.4 998.2 1006.0 1014.1 1020.0 1021.0 1010.2 MAX. QFF PRESSURE IN HPA 1027.6 1021.9 1022.3 1016.5 1014.5 1011.1 998.0 1002.0 1009.6 1022.3 1028.2 1026.6 1028.2 DAY 8 14 3 1 27 1 27 25 29 25 28 31 MIN. QFF PRESSURE IN HPA 1014.8 1009.8 1004.8 1005.4 1003.2 993.8 985.4 993.7 999.9 1008.5 1011.8 1014.0 985.4 DAY 13 24 27 17 15 23 17 3 1 15 7 25 ======================================================================================================================= 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 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 830.5 827.5 827.1 827.2 827.6 823.6 819.7 823.3 827.1 830.5 830.7 830.0 827.1 MAX. QFE PRESSURE IN HPA 833.9 831.0 832.0 832.0 831.2 828.2 822.7 826.1 831.2 834.5 833.9 832.5 834.5 DAY 7 1 3 4 27 1 4 25 13 27 15 31 MIN. QFE PRESSURE IN HPA 827.3 822.6 821.7 822.9 822.5 820.6 816.0 819.7 823.6 826.6 824.8 825.3 816.0 DAY 9 24 27 17 15 18 17 3 4 15 26 25 MEAN QNH PRESSURE IN HPA 1024.2 1020.7 1020.2 1020.3 1020.8 1016.1 1011.5 1015.7 1020.2 1024.2 1024.5 1023.6 1020.2 MAX. QNH PRESSURE IN HPA 1028.3 1024.8 1026.0 1026.0 1025.1 1021.5 1015.0 1019.0 1025.1 1029.0 1028.3 1026.6 1029.0 DAY 7 1 3 4 27 1 4 25 13 27 15 31 MIN. QNH PRESSURE IN HPA 1020.4 1014.9 1013.8 1015.2 1014.7 1012.5 1007.0 1011.4 1016.0 1019.6 1017.5 1018.1 1007.0 DAY 9 24 27 17 15 18 17 3 4 15 26 25 MEAN QFF PRESSURE IN HPA 1021.8 1017.3 1014.4 1011.2 1008.1 999.2 992.1 998.2 1005.3 1013.6 1018.7 1021.9 1010.2 MAX. QFF PRESSURE IN HPA 1027.6 1022.4 1022.5 1017.2 1014.3 1010.8 997.0 1001.2 1008.4 1021.6 1026.5 1029.5 1029.5 DAY 16 12 3 1 27 1 28 19 14 29 30 31 MIN. QFF PRESSURE IN HPA 1015.6 1009.9 1005.2 1005.8 1003.8 994.4 986.5 993.3 998.9 1007.8 1011.1 1015.3 986.5 DAY 22 24 27 15 15 14 17 3 1 13 6 25 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 829.1 826.3 826.1 826.4 826.5 822.7 818.6 822.1 825.8 828.9 829.1 828.8 825.9 MAX. QFE PRESSURE IN HPA 832.0 829.3 830.5 830.7 830.6 827.4 821.6 824.9 829.7 832.5 833.4 831.3 833.4 DAY 7 2 3 4 27 1 4 11 13 25 15 31 MIN. QFE PRESSURE IN HPA 825.7 822.5 821.3 822.3 821.6 819.1 814.9 818.4 822.4 824.9 823.7 824.9 814.9 DAY 9 24 27 16 15 18 17 3 4 20 26 25 MEAN QNH PRESSURE IN HPA 1022.6 1019.3 1019.0 1019.3 1019.5 1014.9 1010.1 1014.2 1018.6 1022.4 1022.6 1022.2 1018.7 MAX. QNH PRESSURE IN HPA 1026.0 1022.8 1024.2 1024.5 1024.3 1020.6 1013.7 1017.6 1023.3 1026.6 1027.7 1025.2 1027.7 DAY 7 2 3 4 27 1 4 11 13 25 15 31 MIN. QNH PRESSURE IN HPA 1018.5 1014.7 1013.3 1014.5 1013.7 1010.7 1005.7 1009.9 1014.6 1017.6 1016.2 1017.6 1005.7 DAY 9 24 27 16 15 18 17 3 4 20 26 25 MEAN QFF PRESSURE IN HPA 1019.2 1015.2 1012.9 1010.0 1006.7 997.8 990.7 996.1 1003.0 1011.0 1015.6 1019.7 1008.2 MAX. QFF PRESSURE IN HPA 1025.0 1019.9 1019.7 1014.7 1012.7 1009.1 995.7 999.8 1005.7 1018.3 1023.6 1026.5 1026.5 DAY 15 11 3 4 27 1 28 11 22 28 30 31 MIN. QFF PRESSURE IN HPA 1013.8 1008.6 1004.8 1004.8 1002.8 992.9 984.2 991.3 997.4 1006.3 1007.7 1014.4 984.2 DAY 1 9 27 15 15 22 17 3 1 14 6 25 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 827.6 824.7 824.4 824.7 825.1 821.2 817.2 820.5 824.2 827.4 827.6 827.4 824.3 MAX. QFE PRESSURE IN HPA 831.3 827.6 828.5 828.7 828.9 826.0 820.3 823.5 827.4 832.1 830.8 829.8 832.1 DAY 7 1 3 4 27 1 4 11 13 26 14 1 MIN. QFE PRESSURE IN HPA 824.3 820.2 820.0 820.7 820.3 818.3 814.0 817.1 821.2 823.8 822.8 823.5 814.0 DAY 1 24 27 15 15 18 21 8 4 20 6 25 MEAN QNH PRESSURE IN HPA 1020.8 1017.4 1017.0 1017.4 1017.8 1013.2 1008.5 1012.3 1016.7 1020.6 1020.8 1020.6 1016.9 MAX. QNH PRESSURE IN HPA 1025.2 1020.8 1021.9 1022.1 1022.3 1018.9 1012.1 1015.9 1020.6 1026.1 1024.6 1023.4 1026.1 DAY 7 1 3 4 27 1 4 11 13 26 14 1 MIN. QNH PRESSURE IN HPA 1016.9 1012.0 1011.8 1012.6 1012.1 1009.8 1004.7 1008.3 1013.2 1016.3 1015.1 1015.9 1004.7 DAY 1 24 27 15 15 18 21 8 4 20 6 25 MEAN QFF PRESSURE IN HPA 1017.4 1013.7 1011.2 1008.1 1005.4 996.3 989.6 994.8 1001.9 1009.8 1014.2 1017.9 1006.7 MAX. QFF PRESSURE IN HPA 1023.2 1017.6 1017.3 1013.7 1011.9 1007.6 995.7 999.4 1006.2 1017.4 1022.5 1022.3 1023.2 DAY 7 11 3 1 27 1 28 11 28 25 30 30 MIN. QFF PRESSURE IN HPA 1012.2 1006.6 1003.3 1002.2 1001.1 991.3 983.4 990.5 997.1 1005.1 1007.5 1011.5 983.4 DAY 1 24 27 15 14 22 16 8 5 14 6 25 ======================================================================================================================= 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 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 828.3 825.3 824.8 825.0 825.2 821.0 817.1 820.5 824.5 827.8 828.2 828.1 824.6 MAX. QFE PRESSURE IN HPA 832.5 828.2 828.1 829.0 830.1 826.0 819.7 823.3 827.6 831.7 831.3 830.0 832.5 DAY 7 2 2 4 26 1 3 11 13 24 14 18 MIN. QFE PRESSURE IN HPA 825.3 820.9 820.6 820.7 820.1 818.0 813.9 817.3 821.0 823.9 823.8 824.5 813.9 DAY 9 24 29 16 15 17 16 3 4 20 6 25 MEAN QNH PRESSURE IN HPA 1021.6 1018.0 1017.5 1017.7 1018.0 1013.0 1008.3 1012.4 1017.1 1021.0 1021.5 1021.3 1017.3 MAX. QNH PRESSURE IN HPA 1026.6 1021.5 1021.4 1022.4 1023.7 1018.9 1011.4 1015.7 1020.8 1025.6 1025.2 1023.6 1026.6 DAY 7 2 2 4 26 1 3 11 13 24 14 18 MIN. QNH PRESSURE IN HPA 1018.1 1012.8 1012.5 1012.6 1011.9 1009.4 1004.5 1008.6 1013.0 1016.4 1016.3 1017.1 1004.5 DAY 9 24 29 16 15 17 16 3 4 20 6 25 MEAN QFF PRESSURE IN HPA 1020.2 1015.5 1012.9 1009.2 1006.0 996.5 989.8 995.5 1003.8 1012.3 1018.1 1020.0 1008.3 MAX. QFF PRESSURE IN HPA 1027.3 1019.9 1019.1 1013.7 1012.8 1007.7 994.4 999.1 1008.2 1020.3 1025.6 1024.9 1027.3 DAY 7 2 5 4 26 1 3 11 28 24 29 30 MIN. QFF PRESSURE IN HPA 1015.4 1010.1 1005.6 1005.2 1001.4 991.4 984.4 991.1 999.6 1006.2 1009.7 1013.8 984.4 DAY 1 24 27 17 15 22 16 3 1 14 6 6 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 829.2 826.2 825.9 825.9 826.2 821.8 818.4 821.9 825.6 828.8 829.2 828.9 825.7 MAX. QFE PRESSURE IN HPA 833.0 829.2 829.4 829.5 832.0 827.1 821.3 824.6 828.9 832.7 832.1 831.0 833.0 DAY 7 1 3 3 26 1 3 18 12 26 17 18 MIN. QFE PRESSURE IN HPA 825.5 822.3 821.6 821.2 821.1 818.6 814.2 819.0 822.0 825.0 824.9 826.0 814.2 DAY 25 24 14 16 15 30 16 3 4 15 6 25 MEAN QNH PRESSURE IN HPA 1022.6 1019.1 1018.8 1018.7 1019.1 1013.9 1009.8 1014.0 1018.4 1022.3 1022.7 1022.3 1018.5 MAX. QNH PRESSURE IN HPA 1027.2 1022.7 1022.9 1023.0 1026.0 1020.2 1013.3 1017.2 1022.3 1026.8 1026.1 1024.8 1027.2 DAY 7 1 3 3 26 1 3 18 12 26 17 18 MIN. QNH PRESSURE IN HPA 1018.3 1014.5 1013.7 1013.2 1013.1 1010.1 1004.9 1010.6 1014.1 1017.7 1017.6 1018.9 1004.9 DAY 25 24 14 16 15 30 16 3 4 15 6 25 MEAN QFF PRESSURE IN HPA 1020.3 1015.7 1013.0 1009.5 1006.4 997.0 990.6 996.7 1003.6 1011.8 1016.9 1020.7 1008.5 MAX. QFF PRESSURE IN HPA 1026.2 1019.8 1019.0 1013.9 1014.9 1008.9 996.0 1000.4 1007.2 1020.8 1024.5 1027.9 1027.9 DAY 7 11 2 1 26 1 27 25 13 27 27 30 MIN. QFF PRESSURE IN HPA 1014.2 1009.2 1005.8 1005.6 1001.8 991.3 984.3 992.6 999.1 1005.8 1009.1 1014.6 984.3 DAY 25 23 26 19 15 30 16 7 6 12 6 5 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 829.1 826.2 826.0 825.9 826.5 822.0 818.8 822.1 825.8 828.8 829.1 828.8 825.8 MAX. QFE PRESSURE IN HPA 832.5 828.8 830.0 829.8 831.4 827.1 822.4 824.8 829.5 832.9 832.0 831.1 832.9 DAY 7 1 2 10 26 1 3 11 12 26 14 30 MIN. QFE PRESSURE IN HPA 824.9 822.0 821.6 821.0 821.8 818.6 814.6 819.0 822.0 824.3 824.2 826.4 814.6 DAY 25 23 14 16 14 30 16 8 4 14 25 25 MEAN QNH PRESSURE IN HPA 1022.6 1019.1 1018.9 1018.8 1019.5 1014.2 1010.4 1014.2 1018.7 1022.2 1022.5 1022.2 1018.6 MAX. QNH PRESSURE IN HPA 1026.6 1022.2 1023.6 1023.4 1025.3 1020.2 1014.6 1017.5 1023.0 1027.1 1026.0 1024.9 1027.1 DAY 7 1 2 10 26 1 3 11 12 26 14 30 MIN. QNH PRESSURE IN HPA 1017.6 1014.1 1013.7 1013.0 1013.9 1010.1 1005.4 1010.6 1014.1 1016.9 1016.8 1019.4 1005.4 DAY 25 23 14 16 14 30 16 8 4 14 25 25 MEAN QFF PRESSURE IN HPA 1019.3 1015.1 1012.7 1009.3 1006.6 997.1 990.8 996.2 1003.2 1010.9 1015.7 1019.9 1008.1 MAX. QFF PRESSURE IN HPA 1024.2 1020.1 1019.8 1013.6 1013.3 1007.7 996.1 999.3 1006.7 1019.0 1023.6 1026.9 1026.9 DAY 7 10 2 10 26 1 27 16 13 29 27 30 MIN. QFF PRESSURE IN HPA 1012.0 1007.3 1004.5 1003.6 1002.3 992.1 983.5 992.1 998.7 1004.7 1007.7 1013.0 983.5 DAY 25 23 26 16 9 30 16 13 4 14 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 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.6 8.2 11.3 16.2 22.0 27.2 27.4 26.9 24.8 16.7 10.0 6.4 16.7 MINIMUN AIR TEMPERATURE (C) -1.9 2.6 6.5 7.9 12.6 18.1 19.0 17.6 14.5 7.0 0.5 -3.6 8.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 6 9 3 0 0 0 0 18 DAYS WITH MINIMUM TEMP. <=-4 8 1 0 0 0 0 0 0 0 0 0 13 22 DAYS WITH FREEZING MIN.<= 0 21 8 0 0 0 0 0 0 0 1 15 29 74 TEMPERATURE RECORDS LOWEST(C) -11.8 -6.0 0.8 1.2 7.0 13.0 14.0 14.0 11.0 -0.6 -3.2 -8.0 -11.8 DAY 16 25 15 7 1 18 20 5 1 22 14 5 MAXIMUM AIR TEMPERATURE (C) 9.9 14.6 16.7 23.5 29.5 34.7 34.3 34.4 33.4 26.1 19.0 16.4 24.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 13 30 30 31 30 1 0 0 135 DAYS WITH MAXIMUM TEMP. <= 0 2 0 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS HIGHEST(C) 16.8 19.8 21.8 27.6 35.0 36.8 37.8 36.2 36.6 31.6 25.6 20.6 37.8 DAY 29 9 31 26 31 4 12 10 10 1 1 29 DIF. BETWEEN (MAX.-MIN.) (C) 11.8 12.0 10.2 15.6 16.9 16.6 15.3 16.8 18.9 19.1 18.5 20.0 16.0 MEAN DAILY TEMP. (MDT) (C) 4.0 8.6 11.6 15.7 21.1 26.4 26.7 26.0 23.9 16.5 9.7 6.4 16.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 32.1 161.7 175.2 156.2 87.6 0.5 0.0 0.0 613.4 HEATING DEG. DAYS(BASE 18 0C) 433.7 273.1 198.7 75.7 1.0 0.0 0.0 0.0 0.0 60.1 247.8 358.8 1648.9 DEWPOINT (MEAN C) -2.2 -0.2 3.3 4.0 5.7 5.5 3.4 0.7 -0.4 -3.7 -6.8 -8.7 0.0 MIXING RATIO (G/KG) 4.09 4.82 6.11 6.36 7.06 7.28 6.11 5.12 4.81 3.86 2.93 2.50 5.09 VAPOUR PRESSURE (HPA) 5.40 6.35 8.02 8.36 9.27 9.51 7.99 6.71 6.31 5.10 3.88 3.31 6.68 SATURATION DEF. (HPA) 3.05 5.00 5.73 11.09 18.51 28.01 29.93 30.16 26.81 15.45 9.42 7.18 15.86 RELATIVE HUMIDITY (MEAN %) 70 60 62 49 38 28 23 20 22 28 34 36 39 RELATIVE HUMIDITY (MAX. %) 91 84 86 77 57 44 36 32 39 47 53 59 59 RELATIVE HUMIDITY (MIN. %) 45 36 39 29 22 17 14 11 10 13 19 20 23 RELATIVE HUMIDITY (MEAN% 03UTC) 88 78 81 70 56 41 33 31 37 44 50 53 55 RELATIVE HUMIDITY (MEAN% 09UTC) 56 44 46 33 25 19 17 13 13 16 23 24 27 RELATIVE HUMIDITY (MEAN% 15UTC) 59 51 53 35 28 23 17 13 15 24 32 31 32 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 54.8 33.1 92.5 35.0 2.0 2.0 0.4 0.0 0.0 0.2 4.0 0.0 224.0 DAYS WITH PRECIPITATION >=10 2 1 4 1 0 0 0 0 0 0 0 0 8 DAYS WITH PRECIPITATION >= 5 2 2 6 2 0 0 0 0 0 0 0 0 12 DAYS WITH PRECIPITATION >= 1 8 8 9 3 1 1 0 0 0 0 1 0 31 DAYS WITH PRECIPITATION 9 9 12 3 1 1 1 0 0 1 1 0 38 GREATEST DAILY PRECIPITATION 24.6 10.0 25.0 24.0 2.0 2.0 0.4 0.0 0.0 0.2 4.0 0.0 25.0 DAY 12 5 13 16 22 13 7 ** ** 17 28 ** DAY WITH THUNDER STORM 0 0 0 3 0 0 1 0 0 0 0 0 4 DAYS WITH SNOW OR SLEET 5 0 0 0 0 0 0 0 0 0 0 0 5 DAYS WITH DUST 0 0 0 0 1 1 0 0 0 0 0 0 2 WIND DIRECTION (PREVAILING) 135 135 135 225 270 360 360 360 360 360 270 135 135 PREVAILING WIND SPEED(KNOTS) 9.9 10.6 11.2 12.5 12.4 13.5 13.8 14.5 12.5 13.9 10.5 8.9 10.6 PREVAILING WIND PERCENT 15.3 24.6 24.2 7.9 13.7 8.3 27.4 21.4 7.9 10.1 5.8 7.3 8.8 CALMS PERCENT OF WIND 57.7 40.5 38.7 56.3 57.3 60.8 35.9 41.1 62.1 62.9 77.1 77.4 55.6 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 179 165 167 265 285 347 8 360 359 331 301 214 345 VECTOR WIND MAGNITUDE(KNOTS) 0.8 2.5 3.9 0.9 1.8 0.4 5.6 4.3 1.2 1.2 0.4 0.3 0.5 WIND STEADINESES (MEAN %) 18.6 37.3 60.9 19.1 39.1 8.7 70.0 58.1 28.6 27.3 16.7 13.6 10.0 WIND SPEED (MEAN KNOTS) 4.3 6.7 6.4 4.7 4.6 4.6 8.0 7.4 4.2 4.4 2.4 2.2 5.0 FASTEST WIND DIRECTION 130 230 270 230 290 120 360 60 350 270 320 210 290 FASTEST WIND SPEED (KNOTS) 25 29 29 21 43 27 25 33 23 29 27 19 43 DAY 17 12 13 3 6 12 21 18 1 16 18 15 DAYS WITH SKY CLEAR (0-2)/8 16 14 7 15 20 22 26 29 30 30 21 26 256 DAYS WITH P.CLOUDY (3-6)/8 9 9 18 12 10 7 4 2 0 1 8 5 85 DAYS WITH CLOUDY (7-8)/8 6 6 6 3 1 1 1 0 0 0 1 0 25 DAYS WITH VISIBILITY =< 2 KM 3 2 2 2 1 0 0 0 0 0 0 0 10 DURATION OF SUNSHINE HOURS 216.4 193.4 197.4 279.6 302.6 333.5 342.5 348.2 325.1 319.2 250.6 275.0 3383.5 ======================================================================================================================= 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 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 827.2 825.9 824.3 826.0 825.8 822.4 821.7 822.8 824.3 828.7 829.7 830.0 825.7 MAX. QFE PRESSURE IN HPA 833.0 831.3 828.6 831.4 830.5 827.6 827.5 827.3 831.2 833.4 836.5 835.5 836.5 DAY-HOUR 2- 6 8- 6 29- 6 8- 6 8- 6 1- 6 4- 3 30- 6 25- 6 14- 6 16- 6 8- 6 MIN. QFE PRESSURE IN HPA 818.9 819.2 819.0 821.3 820.8 817.2 817.6 818.4 818.9 822.4 824.3 824.1 817.2 DAY-HOUR 12-12 5- 9 14-15 4-15 29-15 19-15 12-15 14-12 20-12 6-12 29-12 15-12 MEAN QNH PRESSURE IN HPA 1020.3 1018.7 1016.9 1018.9 1018.6 1014.6 1013.8 1015.1 1016.8 1022.1 1023.3 1023.6 1018.6 MAX. QNH PRESSURE IN HPA 1027.2 1025.2 1022.0 1025.3 1024.2 1020.8 1020.7 1020.4 1025.1 1027.7 1031.3 1030.2 1031.3 DAY-HOUR 2- 6 8- 6 29- 6 8- 6 8- 6 1- 6 4- 3 30- 6 25- 6 14- 6 16- 6 8- 6 MIN. QNH PRESSURE IN HPA 1010.5 1010.8 1010.6 1013.3 1012.7 1008.5 1008.9 1009.9 1010.5 1014.6 1016.9 1016.6 1008.5 DAY-HOUR 12-12 5- 9 14-15 4-15 29-15 19-15 12-15 14-12 20-12 6-12 29-12 15-12 MEAN QFF PRESSURE IN HPA 1020.1 1015.0 1010.7 1009.3 1005.1 997.5 996.7 998.5 1001.6 1012.4 1018.6 1021.7 1008.9 MAX. QFF PRESSURE IN HPA 1031.1 1023.6 1018.0 1017.3 1013.6 1004.0 1003.2 1006.1 1011.5 1022.1 1031.1 1029.2 1031.1 DAY-HOUR 16- 6 24- 6 30- 3 7- 3 8- 6 2- 3 3- 6 31- 3 25- 3 24- 3 19- 3 4- 3 MIN. QFF PRESSURE IN HPA 1009.5 1005.1 1005.5 1003.3 997.6 991.5 990.0 992.1 995.1 1001.8 1009.4 1010.7 990.0 DAY-HOUR 13- 0 5- 9 21- 0 28-12 29-15 25- 0 12-15 14-12 15-12 6-12 1-21 15-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 826.9 825.5 823.7 825.4 825.4 822.2 821.4 822.7 824.1 828.5 829.3 829.7 825.4 MAX. QFE PRESSURE IN HPA 831.0 830.5 827.3 829.2 828.9 825.8 825.7 826.1 828.8 831.6 835.0 833.7 835.0 DAY 29 9 2 8 8 1 4 31 25 20 16 8 MIN. QFE PRESSURE IN HPA 819.4 819.8 819.6 822.5 822.0 817.8 818.3 819.3 820.4 823.2 825.0 827.0 817.8 DAY 13 5 17 11 30 20 12 8 20 6 29 15 MEAN QNH PRESSURE IN HPA 1019.9 1018.3 1016.2 1018.2 1018.2 1014.4 1013.5 1014.9 1016.6 1021.9 1022.8 1023.3 1018.2 MAX. QNH PRESSURE IN HPA 1024.8 1024.2 1020.4 1022.7 1022.3 1018.7 1018.5 1019.0 1022.2 1025.5 1029.6 1028.0 1029.6 DAY 29 9 2 8 8 1 4 31 25 20 16 8 MIN. QNH PRESSURE IN HPA 1011.1 1011.5 1011.3 1014.7 1014.1 1009.2 1009.8 1010.9 1012.2 1015.6 1017.7 1020.1 1009.2 DAY 13 5 17 11 30 20 12 8 20 6 29 15 MEAN QFF PRESSURE IN HPA 1019.2 1014.1 1009.7 1008.6 1004.7 997.3 996.4 998.1 1001.1 1011.5 1017.3 1020.4 1008.2 MAX. QFF PRESSURE IN HPA 1026.2 1020.6 1015.9 1014.6 1010.3 1001.8 1001.1 1003.7 1008.3 1019.0 1027.7 1025.3 1027.7 DAY 16 24 30 7 8 8 3 31 25 20 19 9 MIN. QFF PRESSURE IN HPA 1009.5 1007.2 1005.5 1004.8 999.2 991.5 991.3 993.9 995.6 1002.2 1010.8 1013.1 991.3 DAY 13 5 21 27 31 25 12 10 21 6 3 15 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 827.3 826.1 824.5 826.4 826.4 823.3 822.5 823.7 825.2 829.4 830.2 830.5 826.3 MAX. QFE PRESSURE IN HPA 831.5 830.8 828.0 830.4 829.4 827.0 827.5 826.9 830.0 832.6 835.6 834.3 835.6 DAY 2 9 2 8 17 1 4 31 25 13 16 8 MIN. QFE PRESSURE IN HPA 819.0 820.3 819.6 823.4 823.5 819.3 819.2 820.6 821.0 824.5 825.7 827.3 819.0 DAY 12 5 17 11 29 20 12 14 20 5 29 15 MEAN QNH PRESSURE IN HPA 1020.4 1018.9 1017.1 1019.4 1019.4 1015.7 1014.7 1016.2 1017.9 1022.9 1023.9 1024.3 1019.2 MAX. QNH PRESSURE IN HPA 1025.4 1024.6 1021.3 1024.1 1022.9 1020.1 1020.7 1020.0 1023.6 1026.7 1030.3 1028.7 1030.3 DAY 2 9 2 8 17 1 4 31 25 13 16 8 MIN. QNH PRESSURE IN HPA 1010.6 1012.1 1011.3 1015.8 1015.9 1010.9 1010.8 1012.5 1013.0 1017.1 1018.5 1020.4 1010.6 DAY 12 5 17 11 29 20 12 14 20 5 29 15 MEAN QFF PRESSURE IN HPA 1021.1 1016.0 1011.7 1010.6 1006.9 999.2 998.1 1000.4 1004.0 1015.2 1021.5 1024.4 1010.8 MAX. QFF PRESSURE IN HPA 1029.1 1022.8 1018.0 1017.3 1013.1 1004.0 1003.1 1006.1 1011.5 1022.1 1031.1 1029.2 1031.1 DAY 16 24 30 7 7 2 4 31 25 24 19 4 MIN. QFF PRESSURE IN HPA 1011.2 1008.2 1006.4 1006.4 1001.4 993.7 991.8 996.2 998.5 1004.8 1014.8 1016.2 991.8 DAY 12 5 17 27 30 25 12 14 21 6 2 15 ======================================================================================================================= 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 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 828.7 827.2 825.7 827.4 827.2 823.8 823.0 824.3 826.1 830.3 831.4 831.7 827.2 MAX. QFE PRESSURE IN HPA 833.0 831.3 828.6 831.4 830.5 827.6 827.5 827.3 831.2 833.4 836.5 835.5 836.5 DAY 2 8 29 8 8 1 4 30 25 14 16 8 MIN. QFE PRESSURE IN HPA 820.8 820.3 821.4 824.7 824.2 819.9 820.0 820.7 822.3 825.2 826.5 827.4 819.9 DAY 12 5 17 4 29 20 12 14 20 6 29 15 MEAN QNH PRESSURE IN HPA 1022.1 1020.4 1018.5 1020.6 1020.4 1016.2 1015.3 1016.9 1019.0 1024.0 1025.3 1025.7 1020.4 MAX. QNH PRESSURE IN HPA 1027.2 1025.2 1022.0 1025.3 1024.2 1020.8 1020.7 1020.4 1025.1 1027.7 1031.3 1030.2 1031.3 DAY 2 8 29 8 8 1 4 30 25 14 16 8 MIN. QNH PRESSURE IN HPA 1012.7 1012.1 1013.4 1017.3 1016.8 1011.7 1011.8 1012.6 1014.5 1017.9 1019.5 1020.6 1011.7 DAY 12 5 17 4 29 20 12 14 20 6 29 15 MEAN QFF PRESSURE IN HPA 1022.4 1016.8 1012.5 1010.8 1006.5 998.9 997.9 1000.0 1003.7 1014.2 1020.5 1023.9 1010.7 MAX. QFF PRESSURE IN HPA 1031.1 1023.6 1016.9 1017.3 1013.6 1003.3 1003.2 1005.5 1010.6 1021.0 1030.7 1028.8 1031.1 DAY 16 24 29 8 8 1 3 31 25 21 19 7 MIN. QFF PRESSURE IN HPA 1014.2 1008.7 1008.2 1006.5 999.8 994.7 992.8 995.3 998.4 1004.7 1014.2 1015.9 992.8 DAY 12 5 20 25 29 20 12 14 20 6 2 15 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 827.3 826.1 824.7 826.6 826.3 822.7 822.0 823.0 824.5 828.7 829.7 830.0 826.0 MAX. QFE PRESSURE IN HPA 831.0 829.9 827.8 829.9 829.3 827.0 826.9 825.9 830.0 832.0 834.6 834.4 834.6 DAY 2 19 3 8 17 1 3 30 25 13 15 8 MIN. QFE PRESSURE IN HPA 819.5 819.2 820.4 823.8 823.0 819.2 819.0 819.8 820.3 823.9 825.3 825.8 819.0 DAY 12 5 17 4 29 19 12 14 20 6 29 15 MEAN QNH PRESSURE IN HPA 1020.4 1019.0 1017.4 1019.6 1019.2 1015.0 1014.1 1015.3 1017.1 1022.1 1023.2 1023.6 1018.8 MAX. QNH PRESSURE IN HPA 1024.8 1023.5 1021.0 1023.5 1022.8 1020.1 1020.0 1018.8 1023.6 1026.0 1029.1 1028.8 1029.1 DAY 2 19 3 8 17 1 3 30 25 13 15 8 MIN. QNH PRESSURE IN HPA 1011.2 1010.8 1012.2 1016.3 1015.3 1010.8 1010.6 1011.5 1012.1 1016.4 1018.1 1018.7 1010.6 DAY 12 5 17 4 29 19 12 14 20 6 29 15 MEAN QFF PRESSURE IN HPA 1019.8 1014.7 1010.7 1009.6 1005.2 997.5 996.6 998.0 1000.9 1011.4 1017.1 1020.3 1008.5 MAX. QFF PRESSURE IN HPA 1027.9 1020.2 1016.6 1016.2 1010.7 1002.2 1002.5 1002.9 1008.5 1017.6 1026.8 1024.6 1027.9 DAY 16 24 29 7 8 1 3 31 25 20 19 8 MIN. QFF PRESSURE IN HPA 1011.8 1005.1 1006.9 1005.6 999.0 993.1 991.3 994.1 995.9 1002.9 1009.8 1013.1 991.3 DAY 12 5 20 27 29 20 12 14 15 6 2 15 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 826.1 824.6 823.4 825.0 824.7 821.2 820.6 821.5 822.8 827.2 828.5 828.6 824.5 MAX. QFE PRESSURE IN HPA 829.8 828.8 826.0 828.5 827.9 825.0 825.4 824.6 828.0 830.6 833.5 832.6 833.5 DAY 2 19 1 7 4 1 3 31 25 13 15 8 MIN. QFE PRESSURE IN HPA 818.9 819.4 819.2 822.0 821.2 817.9 817.8 818.4 818.9 822.4 824.3 824.1 817.8 DAY 12 5 14 28 29 19 12 14 20 6 29 15 MEAN QNH PRESSURE IN HPA 1019.0 1017.3 1015.8 1017.8 1017.4 1013.2 1012.5 1013.6 1015.2 1020.3 1021.8 1022.0 1017.1 MAX. QNH PRESSURE IN HPA 1023.4 1022.2 1018.9 1021.9 1021.1 1017.7 1018.2 1017.2 1021.3 1024.3 1027.8 1026.7 1027.8 DAY 2 19 1 7 4 1 3 31 25 13 15 8 MIN. QNH PRESSURE IN HPA 1010.5 1011.1 1010.8 1014.1 1013.2 1009.3 1009.2 1009.9 1010.5 1014.6 1016.9 1016.6 1009.2 DAY 12 5 14 28 29 19 12 14 20 6 29 15 MEAN QFF PRESSURE IN HPA 1018.2 1013.1 1009.3 1008.1 1003.8 996.1 995.5 996.9 999.7 1010.0 1016.3 1018.9 1007.2 MAX. QFF PRESSURE IN HPA 1024.4 1018.0 1014.3 1015.6 1010.6 1000.4 1001.2 1002.5 1007.6 1015.8 1026.0 1024.2 1026.0 DAY 26 24 29 7 4 1 3 31 25 19 18 8 MIN. QFF PRESSURE IN HPA 1010.1 1006.2 1005.7 1003.3 998.2 992.1 990.2 992.1 995.1 1001.8 1010.0 1010.7 990.2 DAY 12 5 17 28 29 20 12 14 15 6 2 15 ======================================================================================================================= 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 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 826.6 825.2 823.6 825.1 824.7 821.3 820.6 821.5 823.0 827.7 829.1 829.4 824.8 MAX. QFE PRESSURE IN HPA 830.4 829.1 826.8 829.0 829.1 825.0 825.2 824.6 828.3 830.8 834.7 832.6 834.7 DAY 28 8 2 15 7 1 3 31 25 19 18 8 MIN. QFE PRESSURE IN HPA 820.0 820.7 819.0 821.3 820.8 817.2 817.6 818.7 819.4 822.8 825.4 825.2 817.2 DAY 12 5 14 4 29 19 12 14 20 5 29 15 MEAN QNH PRESSURE IN HPA 1019.7 1018.0 1016.1 1017.9 1017.4 1013.3 1012.5 1013.6 1015.4 1020.9 1022.5 1022.9 1017.5 MAX. QNH PRESSURE IN HPA 1024.1 1022.6 1019.8 1022.4 1022.6 1017.7 1017.9 1017.2 1021.6 1024.6 1029.2 1026.7 1029.2 DAY 28 8 2 15 7 1 3 31 25 19 18 8 MIN. QNH PRESSURE IN HPA 1011.8 1012.6 1010.6 1013.3 1012.7 1008.5 1008.9 1010.2 1011.1 1015.1 1018.2 1017.9 1008.5 DAY 12 5 14 4 29 19 12 14 20 5 29 15 MEAN QFF PRESSURE IN HPA 1020.2 1015.0 1010.6 1009.1 1004.7 996.9 995.9 997.9 1001.5 1013.1 1020.1 1022.9 1009.0 MAX. QFF PRESSURE IN HPA 1027.5 1020.4 1016.4 1016.4 1012.9 1000.7 1001.0 1004.0 1009.4 1018.9 1030.0 1028.3 1030.0 DAY 15 8 29 7 7 14 3 31 25 23 18 7 MIN. QFF PRESSURE IN HPA 1012.1 1009.3 1006.0 1004.5 997.6 992.2 990.0 993.2 997.3 1003.3 1013.9 1014.7 990.0 DAY 12 5 14 28 29 25 12 9 20 6 2 15 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 827.5 826.3 824.6 826.2 825.7 822.3 821.7 822.9 824.2 828.9 829.8 830.1 825.9 MAX. QFE PRESSURE IN HPA 831.3 831.0 827.8 829.1 829.6 826.4 826.4 826.0 829.1 831.9 836.0 833.6 836.0 DAY 1 8 2 15 7 1 3 30 25 19 18 7 MIN. QFE PRESSURE IN HPA 820.3 822.0 819.6 823.0 821.5 817.7 818.3 819.9 820.7 824.0 825.5 826.5 817.7 DAY 12 5 14 4 29 19 11 9 19 5 29 15 MEAN QNH PRESSURE IN HPA 1020.6 1019.2 1017.2 1019.2 1018.6 1014.5 1013.8 1015.2 1016.7 1022.3 1023.4 1023.8 1018.7 MAX. QNH PRESSURE IN HPA 1025.2 1024.8 1021.0 1022.6 1023.2 1019.4 1019.4 1018.9 1022.6 1025.9 1030.7 1027.9 1030.7 DAY 1 8 2 15 7 1 3 30 25 19 18 7 MIN. QNH PRESSURE IN HPA 1012.1 1014.1 1011.3 1015.3 1013.6 1009.0 1009.8 1011.7 1012.6 1016.5 1018.3 1019.5 1009.0 DAY 12 5 14 4 29 19 11 9 19 5 29 15 MEAN QFF PRESSURE IN HPA 1020.8 1015.5 1011.1 1009.3 1004.6 997.3 996.5 998.5 1001.6 1012.6 1018.7 1022.0 1009.1 MAX. QFF PRESSURE IN HPA 1028.4 1021.9 1016.0 1015.3 1011.6 1001.5 1001.6 1005.1 1008.7 1019.3 1029.2 1027.4 1029.2 DAY 15 23 1 7 7 14 3 31 25 19 18 4 MIN. QFF PRESSURE IN HPA 1012.5 1010.4 1006.6 1004.8 997.9 992.1 991.1 993.8 996.8 1003.3 1012.0 1016.9 991.1 DAY 12 15 14 27 29 24 11 9 19 5 2 15 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 827.2 826.0 824.4 826.2 825.9 822.5 821.8 823.1 824.3 828.8 829.7 830.0 825.8 MAX. QFE PRESSURE IN HPA 831.1 831.0 827.6 829.2 829.6 826.4 826.4 826.0 829.1 832.0 835.7 833.7 835.7 DAY 2 8 1 7 7 1 3 30 25 13 18 7 MIN. QFE PRESSURE IN HPA 820.3 821.6 820.4 823.2 822.0 817.8 818.3 820.0 821.0 823.9 825.5 826.5 817.8 DAY 12 4 16 4 29 19 11 7 19 4 29 15 MEAN QNH PRESSURE IN HPA 1020.3 1018.9 1016.9 1019.1 1018.8 1014.8 1013.9 1015.5 1016.9 1022.2 1023.3 1023.6 1018.7 MAX. QNH PRESSURE IN HPA 1024.9 1024.8 1020.8 1022.7 1023.2 1019.4 1019.4 1018.9 1022.6 1026.0 1030.4 1028.0 1030.4 DAY 2 8 1 7 7 1 3 30 25 13 18 7 MIN. QNH PRESSURE IN HPA 1012.1 1013.7 1012.2 1015.6 1014.1 1009.2 1009.8 1011.8 1013.0 1016.4 1018.3 1019.5 1009.2 DAY 12 4 16 4 29 19 11 7 19 4 29 15 MEAN QFF PRESSURE IN HPA 1019.6 1014.6 1010.1 1009.0 1004.6 997.3 996.4 998.2 1000.6 1011.6 1017.2 1020.5 1008.3 MAX. QFF PRESSURE IN HPA 1027.0 1022.1 1016.5 1015.2 1010.7 1001.8 1000.8 1004.4 1007.4 1018.3 1027.4 1025.9 1027.4 DAY 27 23 29 6 7 7 3 31 25 19 18 4 MIN. QFF PRESSURE IN HPA 1011.4 1008.2 1005.6 1005.3 998.9 991.7 990.7 993.8 995.4 1002.6 1009.4 1013.8 990.7 DAY 12 4 20 10 29 19 11 8 14 5 1 14 ======================================================================================================================= 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 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.3 7.7 10.2 15.1 21.4 26.6 30.9 28.7 24.3 17.8 10.5 6.5 17.0 MINIMUN AIR TEMPERATURE (C) -2.6 0.6 4.3 8.1 11.8 17.5 22.2 19.4 14.3 9.3 4.3 0.2 9.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 4 22 13 2 0 0 0 41 DAYS WITH MINIMUM TEMP. <=-4 13 7 1 0 0 0 0 0 0 0 0 2 23 DAYS WITH FREEZING MIN.<= 0 24 15 5 0 0 0 0 0 0 0 3 20 67 TEMPERATURE RECORDS LOWEST(C) -10.0 -9.8 -5.2 1.0 7.2 12.6 18.0 9.6 8.0 4.0 -2.6 -4.6 -10.0 DAY 27 8 1 1 3 2 1 31 29 19 26 24 MAXIMUM AIR TEMPERATURE (C) 11.9 15.2 16.7 21.9 28.7 33.9 38.6 36.5 32.9 25.8 16.9 13.5 24.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 11 30 31 31 30 9 0 0 142 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.6 21.8 21.0 26.5 34.0 37.6 40.0 39.0 35.5 31.0 21.6 19.0 40.0 DAY 1 21 2 28 28 16 18 1 1 6 11 13 DIF. BETWEEN (MAX.-MIN.) (C) 14.5 14.6 12.4 13.8 16.9 16.4 16.4 17.1 18.6 16.5 12.6 13.3 15.3 MEAN DAILY TEMP. (MDT) (C) 4.7 7.9 10.5 15.0 20.2 25.7 30.4 27.9 23.6 17.6 10.6 6.8 16.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 19.2 141.6 291.9 215.1 79.9 0.5 0.0 0.0 748.3 HEATING DEG. DAYS(BASE 18 0C) 413.7 282.7 232.2 92.3 7.4 0.0 0.0 0.0 0.0 43.1 221.5 345.7 1638.4 DEWPOINT (MEAN C) -4.6 -4.8 -1.3 0.6 0.5 4.4 8.0 3.9 2.9 3.7 3.6 -0.5 1.4 MIXING RATIO (G/KG) 3.48 3.45 4.56 5.34 4.96 6.64 8.60 6.72 5.94 6.22 6.14 4.58 5.55 VAPOUR PRESSURE (HPA) 4.59 4.55 5.98 7.01 6.53 8.68 11.16 8.77 7.81 8.20 8.10 6.04 7.29 SATURATION DEF. (HPA) 4.32 6.87 6.96 10.84 20.28 27.63 35.16 32.38 24.26 13.48 5.19 4.10 15.96 RELATIVE HUMIDITY (MEAN %) 57 46 50 44 28 27 26 23 27 43 65 64 42 RELATIVE HUMIDITY (MAX. %) 77 70 77 66 46 43 41 39 39 60 86 87 61 RELATIVE HUMIDITY (MIN. %) 36 23 28 24 14 15 15 12 17 28 45 40 25 RELATIVE HUMIDITY (MEAN% 03UTC) 72 66 72 62 42 39 39 36 38 57 84 82 57 RELATIVE HUMIDITY (MEAN% 09UTC) 44 31 34 28 16 17 18 15 19 33 49 46 29 RELATIVE HUMIDITY (MEAN% 15UTC) 51 35 41 34 20 21 18 14 22 37 56 58 34 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 70.8 5.1 37.1 17.0 2.6 0.8 2.0 0.0 0.0 12.5 13.7 17.4 179.0 DAYS WITH PRECIPITATION >=10 2 0 1 0 0 0 0 0 0 0 0 0 3 DAYS WITH PRECIPITATION >= 5 4 1 2 2 0 0 0 0 0 2 1 2 14 DAYS WITH PRECIPITATION >= 1 5 1 6 5 1 0 2 0 0 2 3 5 30 DAYS WITH PRECIPITATION 6 2 8 7 2 1 2 0 0 3 3 7 41 GREATEST DAILY PRECIPITATION 27.0 5.0 21.0 5.0 2.0 0.8 1.0 0.0 0.0 7.0 7.0 5.0 27.0 DAY 17 11 25 22 28 24 19 ** ** 24 24 11 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 2 0 0 2 DAYS WITH SNOW OR SLEET 2 0 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH DUST 0 2 0 0 0 1 0 0 0 1 0 0 4 WIND DIRECTION (PREVAILING) 135 225 225 225 45 315 90 360 270 135 135 135 135 PREVAILING WIND SPEED(KNOTS) 10.6 16.4 14.7 14.7 12.4 13.0 12.1 14.4 11.3 11.8 9.6 11.2 10.9 PREVAILING WIND PERCENT 15.7 16.1 19.8 11.7 10.5 9.2 8.5 14.1 7.9 12.5 11.3 19.4 10.3 CALMS PERCENT OF WIND 60.9 54.9 38.3 43.8 54.4 51.3 46.8 44.4 60.4 60.9 69.2 59.7 53.7 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 147 222 202 220 321 318 114 355 273 193 193 145 213 VECTOR WIND MAGNITUDE(KNOTS) 2.0 3.0 4.5 2.2 1.9 1.0 0.8 2.9 0.7 0.3 0.9 2.2 0.8 WIND STEADINESES (MEAN %) 48.8 52.6 57.7 32.4 34.5 15.9 12.9 41.4 16.3 6.4 28.1 47.8 14.5 WIND SPEED (MEAN KNOTS) 4.1 5.7 7.8 6.8 5.5 6.3 6.2 7.0 4.3 4.7 3.2 4.6 5.5 FASTEST WIND DIRECTION 220 230 230 220 350 210 70 350 220 280 310 110 220 FASTEST WIND SPEED (KNOTS) 23 33 29 37 31 29 29 29 27 37 17 19 37 DAY 16 23 6 11 17 1 17 28 10 11 8 1 DAYS WITH SKY CLEAR (0-2)/8 19 22 12 15 20 21 17 28 29 23 10 19 235 DAYS WITH P.CLOUDY (3-6)/8 8 5 13 13 11 9 14 3 1 6 19 9 111 DAYS WITH CLOUDY (7-8)/8 4 1 6 2 0 0 0 0 0 2 1 3 19 DAYS WITH VISIBILITY =< 2 KM 3 0 0 0 0 0 0 0 0 1 1 1 6 DURATION OF SUNSHINE HOURS 239.5 253.2 239.8 254.4 333.3 325.7 314.3 347.5 328.3 269.0 202.0 215.3 3322.3 ======================================================================================================================= 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 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 826.7 826.4 824.1 825.2 825.8 822.4 819.2 821.9 826.2 829.2 828.6 827.6 825.3 MAX. QFE PRESSURE IN HPA 832.8 831.4 832.3 830.0 830.5 827.7 822.8 826.0 831.3 833.5 834.5 833.9 834.5 DAY-HOUR 11- 6 17- 6 11- 6 14- 6 12- 6 8- 6 19- 6 17- 6 19- 6 9- 6 8- 6 29- 6 MIN. QFE PRESSURE IN HPA 815.7 821.3 818.3 821.0 821.6 815.7 814.6 817.6 822.0 825.5 823.8 822.4 814.6 DAY-HOUR 17-12 1- 0 30- 0 11-12 5-12 19-15 16-12 5-12 2-12 24- 0 20-12 11- 0 MEAN QNH PRESSURE IN HPA 1019.7 1019.4 1016.7 1017.9 1018.6 1014.6 1010.9 1014.1 1019.1 1022.7 1022.0 1020.8 1018.0 MAX. QNH PRESSURE IN HPA 1027.0 1025.3 1026.4 1023.6 1024.2 1020.9 1015.1 1018.9 1025.2 1027.8 1029.0 1028.3 1029.0 DAY-HOUR 11- 6 17- 6 11- 6 14- 6 12- 6 8- 6 19- 6 17- 6 19- 6 9- 6 8- 6 29- 6 MIN. QNH PRESSURE IN HPA 1006.7 1013.3 1009.8 1013.0 1013.7 1006.7 1005.4 1008.9 1014.1 1018.3 1016.3 1014.6 1005.4 DAY-HOUR 17-12 1- 0 30- 0 11-12 5-12 19-15 16-12 5-12 2-12 24- 0 20-12 11- 0 MEAN QFF PRESSURE IN HPA 1019.0 1016.2 1011.4 1009.2 1005.7 998.0 991.3 996.1 1004.1 1012.1 1016.5 1018.4 1008.2 MAX. QFF PRESSURE IN HPA 1027.8 1026.6 1024.8 1018.7 1013.4 1005.5 997.2 1005.1 1011.4 1018.8 1026.2 1029.8 1029.8 DAY-HOUR 11- 6 8- 3 1- 6 14- 6 7- 6 4- 6 23- 3 30- 3 29- 3 18- 3 30- 3 29- 3 MIN. QFF PRESSURE IN HPA 1003.6 1005.6 1003.7 1003.0 998.6 990.0 985.3 989.1 998.1 1007.1 1008.4 1010.4 985.3 DAY-HOUR 17-12 23-12 23-12 11-12 31-21 19-21 16-12 1-12 6-12 11-12 13-12 11- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 826.5 825.8 823.7 824.7 825.5 822.3 819.3 821.8 825.9 829.0 828.3 827.3 825.0 MAX. QFE PRESSURE IN HPA 830.8 828.8 830.2 828.1 827.7 825.6 821.8 824.6 829.2 831.7 832.8 832.1 832.8 DAY 8 18 11 14 13 5 22 17 18 13 8 29 MIN. QFE PRESSURE IN HPA 816.3 821.3 818.3 822.0 823.0 816.8 815.7 818.3 822.8 825.5 825.0 822.4 815.7 DAY 26 1 30 11 5 20 16 5 3 24 20 11 MEAN QNH PRESSURE IN HPA 1019.5 1018.7 1016.1 1017.4 1018.3 1014.5 1010.9 1013.9 1018.7 1022.4 1021.6 1020.5 1017.7 MAX. QNH PRESSURE IN HPA 1024.6 1022.2 1023.9 1021.4 1020.9 1018.4 1013.9 1017.2 1022.7 1025.6 1027.0 1026.1 1027.0 DAY 8 18 11 14 13 5 22 17 18 13 8 29 MIN. QNH PRESSURE IN HPA 1007.4 1013.3 1009.8 1014.1 1015.3 1008.0 1006.7 1009.8 1015.1 1018.3 1017.7 1014.6 1006.7 DAY 26 1 30 11 5 20 16 5 3 24 20 11 MEAN QFF PRESSURE IN HPA 1018.2 1014.7 1010.4 1008.5 1005.6 998.1 991.3 995.9 1003.5 1011.3 1015.7 1017.4 1007.5 MAX. QFF PRESSURE IN HPA 1024.5 1022.7 1021.5 1016.7 1010.5 1003.7 994.4 1002.8 1007.9 1015.6 1021.6 1027.4 1027.4 DAY 8 8 1 14 7 2 23 30 21 18 30 29 MIN. QFF PRESSURE IN HPA 1008.8 1007.1 1004.5 1003.1 1002.2 990.9 985.9 989.6 999.3 1007.7 1009.6 1010.4 985.9 DAY 17 23 30 11 5 20 16 1 7 1 13 11 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 827.1 826.5 824.5 825.6 826.6 823.3 820.2 822.8 827.0 830.0 829.0 827.9 825.9 MAX. QFE PRESSURE IN HPA 832.0 829.5 831.2 829.0 829.5 827.3 822.3 825.2 830.2 832.5 834.0 832.6 834.0 DAY 8 21 11 14 12 8 19 10 18 9 8 29 MIN. QFE PRESSURE IN HPA 818.3 822.7 819.0 822.7 823.7 817.4 816.5 819.5 823.9 826.2 825.3 823.4 816.5 DAY 26 1 30 11 5 20 16 1 2 24 24 11 MEAN QNH PRESSURE IN HPA 1020.2 1019.5 1017.1 1018.4 1019.6 1015.7 1012.0 1015.1 1020.1 1023.6 1022.5 1021.1 1018.7 MAX. QNH PRESSURE IN HPA 1026.0 1023.0 1025.1 1022.4 1023.0 1020.4 1014.5 1017.9 1023.9 1026.6 1028.4 1026.7 1028.4 DAY 8 21 11 14 12 8 19 10 18 9 8 29 MIN. QNH PRESSURE IN HPA 1009.8 1015.0 1010.6 1015.0 1016.2 1008.7 1007.6 1011.2 1016.4 1019.1 1018.1 1015.8 1007.6 DAY 26 1 30 11 5 20 16 1 2 24 24 11 MEAN QFF PRESSURE IN HPA 1020.9 1017.4 1012.8 1010.4 1007.3 999.6 993.1 997.9 1006.4 1014.8 1018.4 1020.1 1009.9 MAX. QFF PRESSURE IN HPA 1027.4 1026.6 1024.7 1018.3 1012.8 1005.4 997.2 1005.1 1011.4 1018.8 1026.2 1029.8 1029.8 DAY 7 8 1 14 7 4 23 30 29 18 30 29 MIN. QFF PRESSURE IN HPA 1010.4 1009.1 1005.7 1005.1 1002.8 990.2 987.7 991.0 1001.4 1010.4 1011.3 1011.8 987.7 DAY 17 23 30 11 5 20 16 1 1 23 13 11 ======================================================================================================================= 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 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 828.3 827.8 825.6 826.6 827.2 823.8 820.5 823.4 828.0 831.0 830.1 829.2 826.8 MAX. QFE PRESSURE IN HPA 832.8 831.4 832.3 830.0 830.5 827.7 822.8 826.0 831.3 833.5 834.5 833.9 834.5 DAY 11 17 11 14 12 8 19 17 19 9 8 29 MIN. QFE PRESSURE IN HPA 820.1 823.6 820.6 822.1 823.7 818.6 817.0 820.1 825.2 827.5 826.0 825.4 817.0 DAY 17 10 30 11 5 20 16 6 2 24 20 10 MEAN QNH PRESSURE IN HPA 1021.6 1021.0 1018.4 1019.6 1020.3 1016.3 1012.3 1015.7 1021.3 1024.8 1023.7 1022.7 1019.8 MAX. QNH PRESSURE IN HPA 1027.0 1025.3 1026.4 1023.6 1024.2 1020.9 1015.1 1018.9 1025.2 1027.8 1029.0 1028.3 1029.0 DAY 11 17 11 14 12 8 19 17 19 9 8 29 MIN. QNH PRESSURE IN HPA 1011.9 1016.0 1012.5 1014.3 1016.2 1010.1 1008.2 1011.9 1017.9 1020.7 1018.9 1018.2 1008.2 DAY 17 10 30 11 5 20 16 6 2 24 20 10 MEAN QFF PRESSURE IN HPA 1021.1 1017.9 1013.2 1011.0 1007.2 999.4 992.5 997.4 1006.1 1013.7 1018.1 1020.4 1009.8 MAX. QFF PRESSURE IN HPA 1027.8 1025.0 1024.8 1018.7 1013.4 1005.5 995.3 1003.7 1011.1 1016.6 1025.1 1029.4 1029.4 DAY 11 8 1 14 7 4 28 30 30 31 30 29 MIN. QFF PRESSURE IN HPA 1008.9 1009.9 1007.0 1004.0 1002.3 992.7 988.4 991.7 1001.3 1010.7 1011.9 1013.8 988.4 DAY 17 23 30 11 5 20 12 1 3 7 13 14 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 826.8 826.7 824.5 825.6 826.1 822.7 819.3 822.2 826.6 829.4 828.5 827.6 825.5 MAX. QFE PRESSURE IN HPA 831.0 830.5 831.0 828.6 829.0 826.6 821.6 825.0 829.9 832.1 832.5 831.4 832.5 DAY 7 17 11 14 12 8 22 31 19 8 4 29 MIN. QFE PRESSURE IN HPA 816.7 822.6 820.0 822.1 822.8 818.0 815.8 819.0 823.5 826.3 824.3 823.8 815.8 DAY 17 10 6 11 5 30 16 4 2 24 20 10 MEAN QNH PRESSURE IN HPA 1019.8 1019.8 1017.1 1018.4 1019.0 1015.0 1011.0 1014.4 1019.6 1022.9 1021.9 1020.8 1018.3 MAX. QNH PRESSURE IN HPA 1024.8 1024.2 1024.8 1022.0 1022.4 1019.6 1013.7 1017.7 1023.5 1026.1 1026.6 1025.3 1026.6 DAY 7 17 11 14 12 8 22 31 19 8 4 29 MIN. QNH PRESSURE IN HPA 1007.9 1014.9 1011.8 1014.3 1015.1 1009.4 1006.8 1010.6 1015.9 1019.2 1016.9 1016.3 1006.8 DAY 17 10 6 11 5 30 16 4 2 24 20 10 MEAN QFF PRESSURE IN HPA 1018.3 1016.0 1011.4 1009.1 1005.5 998.0 990.9 995.6 1003.8 1011.2 1015.5 1017.6 1007.7 MAX. QFF PRESSURE IN HPA 1024.8 1021.8 1023.2 1016.4 1010.6 1004.1 994.3 1002.1 1008.4 1015.4 1021.9 1026.8 1026.8 DAY 19 8 1 14 8 8 4 31 30 18 30 28 MIN. QFF PRESSURE IN HPA 1004.5 1007.0 1005.9 1003.7 1000.7 991.9 985.8 990.2 999.7 1008.1 1009.5 1011.7 985.8 DAY 17 23 25 11 5 19 16 1 2 14 13 10 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 825.4 825.2 822.8 823.9 824.5 821.3 817.8 820.6 824.9 827.9 827.4 826.4 824.0 MAX. QFE PRESSURE IN HPA 829.3 828.4 829.8 827.0 828.0 825.3 820.2 823.6 827.9 831.3 831.5 830.0 831.5 DAY 7 17 11 14 12 8 22 31 18 9 7 28 MIN. QFE PRESSURE IN HPA 815.7 821.4 818.5 821.0 821.6 816.6 814.6 817.6 822.0 826.0 823.8 823.2 814.6 DAY 17 10 14 11 5 19 16 5 2 15 20 10 MEAN QNH PRESSURE IN HPA 1018.2 1018.0 1015.1 1016.4 1017.1 1013.4 1009.2 1012.4 1017.6 1021.2 1020.6 1019.4 1016.5 MAX. QNH PRESSURE IN HPA 1022.8 1021.7 1023.4 1020.1 1021.3 1018.1 1012.0 1016.0 1021.1 1025.2 1025.4 1023.6 1025.4 DAY 7 17 11 14 12 8 22 31 18 9 7 28 MIN. QNH PRESSURE IN HPA 1006.7 1013.4 1010.0 1013.0 1013.7 1007.7 1005.4 1008.9 1014.1 1018.9 1016.3 1015.6 1005.4 DAY 17 10 14 11 5 19 16 5 2 15 20 10 MEAN QFF PRESSURE IN HPA 1016.9 1014.1 1009.5 1007.5 1004.5 997.0 989.6 994.6 1002.2 1010.1 1014.7 1016.2 1006.4 MAX. QFF PRESSURE IN HPA 1022.7 1019.2 1019.7 1014.4 1009.8 1002.5 992.3 1001.8 1007.1 1015.2 1019.3 1025.0 1025.0 DAY 19 17 1 14 11 1 4 31 29 31 30 28 MIN. QFF PRESSURE IN HPA 1003.6 1005.6 1003.7 1003.0 1001.0 991.4 985.3 989.1 998.1 1007.1 1008.4 1011.4 985.3 DAY 17 23 23 11 5 20 16 1 6 11 13 10 ======================================================================================================================= 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 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 825.9 825.8 823.4 824.3 824.7 821.3 817.8 820.6 825.1 828.3 828.1 827.2 824.4 MAX. QFE PRESSURE IN HPA 829.9 828.8 831.6 827.5 827.6 824.6 820.0 823.1 827.9 831.1 832.1 832.1 832.1 DAY 7 17 11 14 12 1 22 31 18 8 8 28 MIN. QFE PRESSURE IN HPA 817.0 822.8 818.9 821.7 822.3 815.7 815.2 817.7 822.0 826.3 824.6 824.0 815.2 DAY 17 10 14 11 4 19 15 6 2 23 20 10 MEAN QNH PRESSURE IN HPA 1018.8 1018.6 1015.8 1016.9 1017.4 1013.3 1009.2 1012.5 1017.8 1021.6 1021.3 1020.3 1017.0 MAX. QNH PRESSURE IN HPA 1023.5 1022.2 1025.5 1020.7 1020.8 1017.2 1011.8 1015.5 1021.1 1024.9 1026.1 1026.1 1026.1 DAY 7 17 11 14 12 1 22 31 18 8 8 28 MIN. QNH PRESSURE IN HPA 1008.2 1015.1 1010.5 1013.8 1014.5 1006.7 1006.1 1009.0 1014.1 1019.2 1017.2 1016.5 1006.1 DAY 17 10 14 11 4 19 15 6 2 23 20 10 MEAN QFF PRESSURE IN HPA 1019.3 1016.5 1011.4 1008.9 1005.0 997.2 990.4 995.5 1004.0 1012.8 1017.1 1019.2 1008.1 MAX. QFF PRESSURE IN HPA 1026.6 1022.5 1022.0 1015.5 1009.7 1002.9 993.2 1001.8 1010.1 1015.9 1022.6 1028.4 1028.4 DAY 7 7 1 13 6 1 22 30 29 31 30 28 MIN. QFF PRESSURE IN HPA 1006.1 1008.0 1006.3 1005.0 1000.2 990.2 986.6 990.6 998.1 1010.0 1010.7 1012.8 986.6 DAY 17 23 29 11 31 19 11 6 1 23 13 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 826.9 826.9 824.5 825.5 825.8 822.3 819.3 822.0 826.0 829.3 828.8 827.9 825.4 MAX. QFE PRESSURE IN HPA 830.8 830.0 832.0 828.4 828.0 826.0 822.3 824.9 828.8 832.2 832.8 833.1 833.1 DAY 7 21 11 23 12 5 22 16 20 8 7 28 MIN. QFE PRESSURE IN HPA 818.1 824.0 820.3 823.2 823.3 816.8 816.0 818.9 823.0 826.8 825.7 824.5 816.0 DAY 17 10 29 11 20 19 15 5 2 23 19 10 MEAN QNH PRESSURE IN HPA 1019.9 1020.0 1017.1 1018.3 1018.7 1014.5 1011.0 1014.2 1018.9 1022.8 1022.2 1021.1 1018.2 MAX. QNH PRESSURE IN HPA 1024.6 1023.6 1026.0 1021.7 1021.3 1018.9 1014.5 1017.6 1022.2 1026.2 1027.0 1027.3 1027.3 DAY 7 21 11 23 12 5 22 16 20 8 7 28 MIN. QNH PRESSURE IN HPA 1009.5 1016.5 1012.1 1015.6 1015.7 1008.0 1007.0 1010.5 1015.3 1019.8 1018.5 1017.1 1007.0 DAY 17 10 29 11 20 19 15 5 2 23 19 10 MEAN QFF PRESSURE IN HPA 1019.4 1016.9 1011.8 1009.5 1005.5 997.7 991.3 996.2 1003.9 1011.8 1016.7 1018.7 1008.3 MAX. QFF PRESSURE IN HPA 1025.6 1022.7 1019.9 1016.2 1011.9 1003.5 994.7 1002.8 1009.6 1016.9 1022.6 1029.1 1029.1 DAY 10 7 1 13 6 5 22 29 29 31 29 28 MIN. QFF PRESSURE IN HPA 1007.9 1009.2 1005.9 1005.7 999.6 990.8 986.8 991.2 998.7 1008.3 1011.1 1013.0 986.8 DAY 17 23 29 28 31 19 11 5 2 6 12 10 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 826.6 826.7 824.2 825.4 825.8 822.3 819.7 822.2 826.1 829.3 828.7 827.7 825.4 MAX. QFE PRESSURE IN HPA 831.1 829.7 830.5 828.4 828.0 825.6 822.3 825.3 829.2 832.4 832.8 832.5 832.8 DAY 7 7 10 14 12 7 22 16 17 12 7 28 MIN. QFE PRESSURE IN HPA 816.3 824.4 820.0 823.0 821.9 816.8 815.7 819.0 823.3 826.5 825.4 823.4 815.7 DAY 25 10 29 10 5 19 15 4 1 23 23 10 MEAN QNH PRESSURE IN HPA 1019.6 1019.8 1016.8 1018.2 1018.6 1014.5 1011.4 1014.4 1019.1 1022.8 1022.1 1020.8 1018.2 MAX. QNH PRESSURE IN HPA 1024.9 1023.3 1024.2 1021.7 1021.3 1018.4 1014.5 1018.1 1022.7 1026.5 1027.0 1026.6 1027.0 DAY 7 7 10 14 12 7 22 16 17 12 7 28 MIN. QNH PRESSURE IN HPA 1007.4 1017.0 1011.8 1015.3 1014.0 1008.0 1006.7 1010.6 1015.7 1019.5 1018.2 1015.8 1006.7 DAY 25 10 29 10 5 19 15 4 1 23 23 10 MEAN QFF PRESSURE IN HPA 1018.1 1016.0 1010.8 1008.7 1005.0 997.5 991.2 995.7 1003.4 1011.3 1015.8 1017.6 1007.6 MAX. QFF PRESSURE IN HPA 1024.6 1022.0 1019.3 1016.7 1011.6 1003.1 994.8 1002.1 1008.1 1016.2 1022.3 1027.6 1027.6 DAY 7 7 1 13 6 7 22 30 29 31 29 28 MIN. QFF PRESSURE IN HPA 1007.7 1008.4 1005.7 1004.2 998.6 990.0 985.5 991.2 998.4 1008.9 1009.8 1011.1 985.5 DAY 17 23 29 10 31 19 15 4 6 1 12 10 ======================================================================================================================= 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 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.5 7.7 12.4 18.0 23.5 27.2 30.1 28.4 25.1 18.2 12.0 9.5 18.1 MINIMUN AIR TEMPERATURE (C) -0.3 1.2 6.1 9.8 13.8 17.6 21.6 20.0 15.7 8.4 2.1 -0.5 9.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 2 2 18 10 2 0 0 0 34 DAYS WITH MINIMUM TEMP. <=-4 9 2 0 0 0 0 0 0 0 0 0 5 16 DAYS WITH FREEZING MIN.<= 0 15 14 5 0 0 0 0 0 0 0 7 20 61 TEMPERATURE RECORDS LOWEST(C) -10.2 -5.0 -2.0 2.6 8.2 13.0 17.0 14.0 10.0 3.6 -1.8 -7.4 -10.2 DAY 15 18 6 7 3 2 25 31 19 29 27 9 MAXIMUM AIR TEMPERATURE (C) 12.0 14.1 18.8 25.6 31.2 34.3 37.4 36.1 33.0 27.7 22.2 20.8 26.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 23 30 31 31 30 7 0 0 152 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 15.2 18.4 27.4 29.0 35.0 37.0 42.0 39.0 36.0 32.4 23.8 25.6 42.0 DAY 5 11 29 20 27 30 11 21 8 1 1 17 DIF. BETWEEN (MAX.-MIN.) (C) 12.3 12.9 12.7 15.8 17.4 16.7 15.8 16.1 17.3 19.3 20.1 21.3 16.5 MEAN DAILY TEMP. (MDT) (C) 5.8 7.7 12.5 17.7 22.5 26.0 29.5 28.0 24.4 18.0 12.1 10.1 17.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.4 3.1 65.5 148.5 263.3 217.2 101.2 7.6 0.0 0.0 807.0 HEATING DEG. DAYS(BASE 18 0C) 377.6 289.2 179.4 36.5 1.4 0.0 0.0 0.0 0.0 34.4 175.8 244.0 1338.3 DEWPOINT (MEAN C) -2.1 -1.5 1.4 2.7 3.6 4.8 8.9 7.1 4.2 -0.3 -4.8 -6.3 1.5 MIXING RATIO (G/KG) 4.19 4.37 5.44 5.93 6.15 6.78 8.95 8.02 6.64 4.74 3.32 3.04 5.63 VAPOUR PRESSURE (HPA) 5.52 5.76 7.16 7.80 8.09 8.87 11.64 10.46 8.70 6.25 4.40 4.03 7.39 SATURATION DEF. (HPA) 3.98 5.29 8.11 14.08 22.45 28.68 32.76 29.72 24.70 16.39 10.82 9.08 17.17 RELATIVE HUMIDITY (MEAN %) 62 56 52 39 29 25 29 28 28 30 32 35 37 RELATIVE HUMIDITY (MAX. %) 85 81 80 61 43 35 42 39 41 45 49 53 55 RELATIVE HUMIDITY (MIN. %) 37 32 29 24 19 18 19 18 17 18 19 20 23 RELATIVE HUMIDITY (MEAN% 03UTC) 80 79 72 54 39 32 38 36 40 44 49 51 51 RELATIVE HUMIDITY (MEAN% 09UTC) 47 40 35 26 21 19 21 20 19 21 22 24 26 RELATIVE HUMIDITY (MEAN% 15UTC) 50 45 41 32 24 21 23 22 22 25 28 30 30 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 39.3 40.8 14.6 4.6 3.0 0.0 0.0 2.0 0.0 0.0 0.0 0.0 104.3 DAYS WITH PRECIPITATION >=10 1 1 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH PRECIPITATION >= 5 3 2 0 0 0 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 1 3 4 5 2 1 0 0 1 0 0 0 0 16 DAYS WITH PRECIPITATION 4 6 9 2 1 0 0 1 0 0 0 0 23 GREATEST DAILY PRECIPITATION 20.0 27.0 4.8 2.6 3.0 0.0 0.0 2.0 0.0 0.0 0.0 0.0 27.0 DAY 2 12 1 23 16 ** ** 24 ** ** ** ** DAY WITH THUNDER STORM 0 0 0 0 1 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 1 0 2 0 0 0 1 0 0 0 0 0 4 WIND DIRECTION (PREVAILING) 135 135 225 225 225 360 360 360 90 270 135 135 135 PREVAILING WIND SPEED(KNOTS) 11.7 12.8 15.4 16.1 14.2 13.7 13.2 12.2 11.2 10.2 9.3 10.0 11.4 PREVAILING WIND PERCENT 28.2 18.8 18.5 13.3 10.5 25.8 14.1 14.9 7.9 8.5 5.0 7.7 8.9 CALMS PERCENT OF WIND 49.6 45.1 41.5 44.2 50.4 43.3 52.8 49.2 54.2 68.5 82.1 85.9 55.7 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 165 177 208 255 289 356 26 33 57 300 212 149 247 VECTOR WIND MAGNITUDE(KNOTS) 4.1 2.9 4.2 2.3 2.1 4.5 2.4 2.8 0.3 1.0 0.2 0.5 0.3 WIND STEADINESES (MEAN %) 65.1 39.7 55.3 31.9 33.3 62.5 40.7 46.7 5.8 28.6 11.1 35.7 5.5 WIND SPEED (MEAN KNOTS) 6.3 7.3 7.6 7.2 6.3 7.2 5.9 6.0 5.2 3.5 1.8 1.4 5.5 FASTEST WIND DIRECTION 210 140 230 220 230 360 210 140 180 330 320 290 140 FASTEST WIND SPEED (KNOTS) 29 27 33 37 27 29 37 39 27 29 17 17 39 DAY 6 11 31 24 14 8 26 23 4 14 13 29 DAYS WITH SKY CLEAR (0-2)/8 20 16 12 16 25 28 24 23 25 31 28 23 271 DAYS WITH P.CLOUDY (3-6)/8 8 9 13 12 6 2 7 8 5 0 2 6 78 DAYS WITH CLOUDY (7-8)/8 3 3 6 2 0 0 0 0 0 0 0 2 16 DAYS WITH VISIBILITY =< 2 KM 1 0 1 0 0 0 0 0 0 0 0 0 2 DURATION OF SUNSHINE HOURS 232.1 224.4 215.6 288.4 358.3 370.5 337.5 333.4 314.3 325.2 288.7 264.8 3553.2 ======================================================================================================================= 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 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 826.0 826.2 826.3 826.3 825.8 823.4 820.6 823.2 825.2 828.5 830.1 831.1 826.1 MAX. QFE PRESSURE IN HPA 833.3 832.8 833.0 833.9 831.7 828.4 825.4 827.2 830.0 833.5 835.8 838.7 838.7 DAY-HOUR 4- 6 24- 6 26- 6 12- 6 8- 6 5- 6 22- 6 29- 3 26- 6 29- 6 21- 6 10- 6 MIN. QFE PRESSURE IN HPA 814.8 817.6 818.4 821.0 819.1 817.7 814.2 819.6 821.0 823.9 825.8 825.3 814.2 DAY-HOUR 13- 9 13-12 2-12 6- 3 30-12 30-15 8-15 13-12 16-12 3-15 1-12 21-12 MEAN QNH PRESSURE IN HPA 1018.8 1019.1 1019.3 1019.2 1018.7 1015.8 1012.5 1015.5 1017.9 1021.8 1023.8 1025.0 1018.9 MAX. QNH PRESSURE IN HPA 1027.5 1027.0 1027.2 1028.3 1025.6 1021.7 1018.2 1020.3 1023.6 1027.8 1030.5 1033.9 1033.9 DAY-HOUR 4- 6 24- 6 26- 6 12- 6 8- 6 5- 6 22- 6 29- 3 26- 6 29- 6 21- 6 10- 6 MIN. QNH PRESSURE IN HPA 1005.6 1008.9 1009.9 1013.0 1010.7 1009.0 1004.9 1011.3 1013.0 1016.4 1018.7 1018.1 1004.9 DAY-HOUR 13- 9 13-12 2-12 6- 3 30-12 30-15 8-15 13-12 16-12 3-15 1-12 21-12 MEAN QFF PRESSURE IN HPA 1017.1 1015.8 1012.5 1008.4 1004.2 998.8 993.4 997.6 1002.3 1011.0 1017.6 1020.7 1008.3 MAX. QFF PRESSURE IN HPA 1027.9 1029.3 1020.8 1020.5 1012.5 1004.7 1001.9 1004.2 1010.1 1020.6 1025.5 1034.0 1034.0 DAY-HOUR 15- 3 24- 6 6- 3 12- 3 7- 3 20- 3 22- 3 29- 3 26- 3 29- 3 21- 3 10- 6 MIN. QFF PRESSURE IN HPA 1002.8 1004.6 1002.7 1000.1 993.8 990.0 984.8 990.3 995.8 999.6 1008.0 1010.9 984.8 DAY-HOUR 13- 9 16-12 15-12 24-12 30-12 30-12 8-12 22-12 7-12 1-12 1-12 21-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 825.6 825.9 825.8 826.0 825.6 823.2 820.6 823.1 824.9 828.1 829.6 830.9 825.8 MAX. QFE PRESSURE IN HPA 831.5 831.0 831.6 831.9 830.0 827.0 824.1 825.8 828.3 831.4 833.1 835.5 835.5 DAY 5 6 27 12 8 7 22 29 26 26 21 10 MIN. QFE PRESSURE IN HPA 820.0 818.9 819.1 821.8 821.3 818.6 815.9 820.2 822.7 824.4 827.5 826.3 815.9 DAY 13 16 2 6 31 30 9 5 16 4 2 21 MEAN QNH PRESSURE IN HPA 1018.4 1018.8 1018.6 1018.9 1018.4 1015.5 1012.5 1015.4 1017.6 1021.4 1023.2 1024.7 1018.6 MAX. QNH PRESSURE IN HPA 1025.4 1024.8 1025.5 1025.9 1023.6 1020.1 1016.6 1018.7 1021.6 1025.3 1027.3 1030.2 1030.2 DAY 5 6 27 12 8 7 22 29 26 26 21 10 MIN. QNH PRESSURE IN HPA 1011.8 1010.5 1010.7 1013.9 1013.3 1010.1 1006.9 1012.0 1015.0 1017.0 1020.7 1019.2 1006.9 DAY 13 16 2 6 31 30 9 5 16 4 2 21 MEAN QFF PRESSURE IN HPA 1016.1 1015.2 1011.6 1008.1 1004.3 999.1 993.5 997.5 1001.7 1010.0 1016.1 1019.4 1007.7 MAX. QFF PRESSURE IN HPA 1024.0 1027.0 1018.7 1017.7 1011.4 1004.4 1000.3 1003.2 1006.5 1016.8 1020.7 1028.3 1028.3 DAY 15 24 12 12 8 20 22 29 19 26 27 10 MIN. QFF PRESSURE IN HPA 1007.4 1006.7 1005.0 1000.8 996.3 991.6 986.3 992.2 997.1 1001.3 1009.9 1012.2 986.3 DAY 6 16 15 6 30 30 11 5 4 1 1 21 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 826.1 826.5 826.5 826.8 826.7 824.4 821.6 824.1 826.1 829.3 830.7 831.7 826.7 MAX. QFE PRESSURE IN HPA 831.7 831.7 832.0 833.2 831.1 827.8 825.1 827.2 829.4 832.1 834.5 836.8 836.8 DAY 4 24 27 12 8 5 22 29 26 25 21 10 MIN. QFE PRESSURE IN HPA 817.6 817.9 820.1 821.0 822.2 820.3 817.5 821.5 823.4 826.1 828.2 826.7 817.5 DAY 13 13 2 6 31 30 9 5 16 4 2 21 MEAN QNH PRESSURE IN HPA 1019.0 1019.5 1019.5 1019.9 1019.7 1017.0 1013.7 1016.7 1019.0 1022.8 1024.5 1025.6 1019.7 MAX. QNH PRESSURE IN HPA 1025.6 1025.6 1026.0 1027.4 1024.9 1021.0 1017.8 1020.3 1022.9 1026.1 1029.0 1031.7 1031.7 DAY 4 24 27 12 8 5 22 29 26 25 21 10 MIN. QNH PRESSURE IN HPA 1008.9 1009.3 1011.9 1013.0 1014.4 1012.1 1008.8 1013.6 1015.8 1019.0 1021.5 1019.7 1008.8 DAY 13 13 2 6 31 30 9 5 16 4 2 21 MEAN QFF PRESSURE IN HPA 1018.3 1017.3 1013.6 1010.2 1006.0 1000.5 995.3 999.6 1004.8 1013.9 1020.7 1023.8 1010.3 MAX. QFF PRESSURE IN HPA 1027.9 1029.1 1020.8 1020.5 1012.5 1004.7 1001.9 1004.2 1010.1 1020.6 1025.5 1032.7 1032.7 DAY 15 24 6 12 7 20 22 29 26 29 21 10 MIN. QFF PRESSURE IN HPA 1006.7 1008.5 1006.1 1001.8 998.4 993.7 989.2 994.6 999.1 1005.6 1012.9 1016.3 989.2 DAY 13 13 30 6 30 30 11 5 4 1 2 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 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 827.4 827.7 827.7 827.7 827.4 824.8 822.0 824.7 826.9 830.3 831.9 833.0 827.6 MAX. QFE PRESSURE IN HPA 833.3 832.8 833.0 833.9 831.7 828.4 825.4 827.2 830.0 833.5 835.8 838.7 838.7 DAY 4 24 26 12 8 5 22 29 26 29 21 10 MIN. QFE PRESSURE IN HPA 817.6 819.1 822.0 821.8 822.3 820.5 817.5 822.1 824.1 827.0 829.2 828.4 817.5 DAY 13 13 2 6 30 30 9 13 3 4 17 21 MEAN QNH PRESSURE IN HPA 1020.5 1020.9 1020.9 1020.9 1020.5 1017.5 1014.1 1017.4 1020.0 1024.0 1025.9 1027.2 1020.8 MAX. QNH PRESSURE IN HPA 1027.5 1027.0 1027.2 1028.3 1025.6 1021.7 1018.2 1020.3 1023.6 1027.8 1030.5 1033.9 1033.9 DAY 4 24 26 12 8 5 22 29 26 29 21 10 MIN. QNH PRESSURE IN HPA 1008.9 1010.7 1014.1 1013.9 1014.5 1012.4 1008.8 1014.3 1016.6 1020.1 1022.7 1021.7 1008.8 DAY 13 13 2 6 30 30 9 13 3 4 17 21 MEAN QFF PRESSURE IN HPA 1019.1 1017.8 1014.2 1009.9 1005.8 1000.2 994.8 999.3 1004.3 1012.8 1019.5 1023.1 1010.1 MAX. QFF PRESSURE IN HPA 1026.5 1029.3 1019.8 1020.4 1012.4 1004.5 1001.3 1004.2 1009.2 1019.2 1025.4 1034.0 1034.0 DAY 15 24 5 12 8 5 21 28 25 26 21 10 MIN. QFF PRESSURE IN HPA 1006.9 1008.6 1006.6 1002.0 997.3 994.2 987.9 994.4 999.2 1004.7 1014.9 1015.5 987.9 DAY 13 13 15 24 30 30 9 22 4 2 2 21 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 826.0 826.4 826.7 826.6 826.1 823.7 820.7 823.3 825.5 828.5 830.2 831.3 826.3 MAX. QFE PRESSURE IN HPA 832.6 831.3 832.6 832.6 830.4 827.5 824.5 825.6 828.5 831.9 833.4 836.0 836.0 DAY 4 5 26 12 8 5 22 28 25 25 21 10 MIN. QFE PRESSURE IN HPA 814.8 818.4 820.4 821.8 820.3 819.3 816.5 820.8 822.2 825.5 827.8 826.7 814.8 DAY 13 13 15 6 30 30 8 13 16 4 17 21 MEAN QNH PRESSURE IN HPA 1018.9 1019.4 1019.7 1019.6 1019.1 1016.1 1012.6 1015.6 1018.3 1021.9 1023.9 1025.1 1019.2 MAX. QNH PRESSURE IN HPA 1026.7 1025.2 1026.7 1026.7 1024.1 1020.7 1017.1 1018.4 1021.9 1025.9 1027.7 1030.7 1030.7 DAY 4 5 26 12 8 5 22 28 25 25 21 10 MIN. QNH PRESSURE IN HPA 1005.6 1009.9 1012.2 1013.9 1012.1 1010.9 1007.6 1012.7 1014.4 1018.3 1021.0 1019.7 1005.6 DAY 13 13 15 6 30 30 8 13 16 4 17 21 MEAN QFF PRESSURE IN HPA 1016.5 1015.5 1012.4 1008.1 1004.1 998.8 993.1 997.1 1001.7 1010.0 1016.4 1019.5 1007.8 MAX. QFF PRESSURE IN HPA 1023.5 1025.3 1018.9 1016.9 1011.2 1002.9 1000.0 1001.7 1006.2 1016.5 1020.9 1029.1 1029.1 DAY 22 23 26 12 3 5 22 29 25 25 27 10 MIN. QFF PRESSURE IN HPA 1002.8 1007.0 1003.4 1001.1 994.2 991.0 985.8 993.2 996.8 1002.2 1010.9 1011.6 985.8 DAY 13 12 15 24 30 30 11 22 4 1 1 21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 824.8 824.7 825.2 825.0 824.6 822.3 819.2 821.7 823.8 827.1 828.8 829.8 824.7 MAX. QFE PRESSURE IN HPA 831.5 829.9 831.3 830.1 829.0 826.0 822.7 823.7 826.5 830.9 831.8 834.7 834.7 DAY 4 23 27 12 8 6 22 28 25 25 21 10 MIN. QFE PRESSURE IN HPA 814.8 817.6 818.4 821.1 819.1 817.9 814.8 819.6 821.0 824.2 825.8 825.3 814.8 DAY 13 13 2 24 30 30 8 13 16 1 1 21 MEAN QNH PRESSURE IN HPA 1017.4 1017.4 1017.9 1017.7 1017.2 1014.5 1010.8 1013.8 1016.3 1020.1 1022.2 1023.4 1017.4 MAX. QNH PRESSURE IN HPA 1025.4 1023.5 1025.2 1023.7 1022.4 1018.9 1015.0 1016.2 1019.5 1024.7 1025.8 1029.2 1029.2 DAY 4 23 27 12 8 6 22 28 25 25 21 10 MIN. QNH PRESSURE IN HPA 1005.6 1008.9 1009.9 1013.1 1010.7 1009.3 1005.6 1011.3 1013.0 1016.8 1018.7 1018.1 1005.6 DAY 13 13 2 24 30 30 8 13 16 1 1 21 MEAN QFF PRESSURE IN HPA 1015.1 1013.6 1010.9 1006.7 1002.9 997.8 991.7 995.8 1000.4 1008.7 1015.0 1018.0 1006.4 MAX. QFF PRESSURE IN HPA 1023.1 1025.4 1016.6 1015.5 1009.7 1003.6 998.8 1000.7 1005.3 1015.5 1019.1 1026.9 1026.9 DAY 22 23 6 7 8 19 21 28 25 25 20 9 MIN. QFF PRESSURE IN HPA 1004.9 1004.6 1002.7 1000.1 993.8 990.0 984.8 990.3 995.8 999.6 1008.0 1010.9 984.8 DAY 13 16 15 24 30 30 8 22 7 1 1 21 ======================================================================================================================= 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 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 825.3 825.4 825.5 825.4 824.6 822.2 819.2 821.9 824.0 827.4 829.3 830.3 825.0 MAX. QFE PRESSURE IN HPA 832.2 830.3 831.6 830.4 829.0 826.2 822.7 824.0 826.5 831.1 832.5 835.0 835.0 DAY 4 5 26 1 8 6 22 29 25 25 21 9 MIN. QFE PRESSURE IN HPA 816.6 818.6 819.2 821.8 819.1 817.7 814.2 819.7 821.4 823.9 826.5 826.0 814.2 DAY 13 16 2 21 30 30 8 5 3 3 1 22 MEAN QNH PRESSURE IN HPA 1018.1 1018.2 1018.3 1018.1 1017.2 1014.4 1010.9 1014.1 1016.5 1020.6 1022.8 1024.0 1017.8 MAX. QNH PRESSURE IN HPA 1026.2 1024.0 1025.5 1024.1 1022.4 1019.1 1015.0 1016.5 1019.5 1024.9 1026.6 1029.6 1029.6 DAY 4 5 26 1 8 6 22 29 25 25 21 9 MIN. QNH PRESSURE IN HPA 1007.7 1010.1 1010.8 1013.9 1010.7 1009.0 1004.9 1011.4 1013.4 1016.4 1019.5 1018.9 1004.9 DAY 13 16 2 21 30 30 8 5 3 3 1 22 MEAN QFF PRESSURE IN HPA 1017.3 1015.9 1012.4 1008.3 1003.3 997.6 992.4 996.9 1002.2 1011.6 1018.9 1021.9 1008.2 MAX. QFF PRESSURE IN HPA 1026.1 1026.9 1018.3 1017.1 1009.8 1003.6 999.1 1001.4 1006.7 1018.5 1023.1 1031.1 1031.1 DAY 14 23 6 11 7 19 21 31 25 26 20 10 MIN. QFF PRESSURE IN HPA 1008.6 1007.8 1004.9 1001.6 994.3 990.2 985.1 992.2 997.1 1003.3 1013.6 1015.3 985.1 DAY 13 16 15 24 30 30 8 22 5 1 1 2 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 826.4 826.5 826.7 826.6 825.8 823.2 820.7 823.3 825.1 828.6 830.2 831.2 826.2 MAX. QFE PRESSURE IN HPA 832.8 831.5 832.6 831.5 830.0 827.0 825.2 825.3 827.9 831.7 833.3 836.3 836.3 DAY 4 23 26 11 7 6 18 25 25 25 20 9 MIN. QFE PRESSURE IN HPA 819.7 819.5 820.6 822.6 821.0 819.1 816.2 820.5 822.6 825.4 827.6 827.2 816.2 DAY 13 15 2 8 30 30 8 4 3 3 17 20 MEAN QNH PRESSURE IN HPA 1019.4 1019.4 1019.7 1019.6 1018.6 1015.6 1012.6 1015.6 1017.8 1022.0 1023.9 1025.0 1019.1 MAX. QNH PRESSURE IN HPA 1027.0 1025.4 1026.7 1025.4 1023.6 1020.1 1017.9 1018.1 1021.1 1025.6 1027.5 1031.1 1031.1 DAY 4 23 26 11 7 6 18 25 25 25 20 9 MIN. QNH PRESSURE IN HPA 1011.4 1011.2 1012.5 1014.9 1013.0 1010.7 1007.3 1012.4 1014.9 1018.2 1020.8 1020.3 1007.3 DAY 13 15 2 8 30 30 8 4 3 3 17 20 MEAN QFF PRESSURE IN HPA 1018.0 1016.2 1012.9 1008.5 1003.9 998.3 993.3 997.7 1002.2 1011.0 1017.5 1020.8 1008.4 MAX. QFF PRESSURE IN HPA 1024.5 1027.9 1019.3 1018.5 1010.9 1002.5 1000.3 1002.4 1007.0 1016.6 1022.2 1032.2 1032.2 DAY 14 23 26 11 7 19 21 28 25 25 20 9 MIN. QFF PRESSURE IN HPA 1011.9 1009.1 1004.6 1001.8 996.0 991.4 986.1 992.1 998.0 1003.2 1012.5 1014.8 986.1 DAY 6 15 15 21 30 30 11 21 8 1 1 21 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 826.1 826.4 826.7 826.4 825.9 823.4 820.9 823.4 825.2 828.6 830.2 831.2 826.2 MAX. QFE PRESSURE IN HPA 832.2 831.5 832.6 831.7 830.0 827.5 824.3 825.8 828.3 831.7 833.1 836.3 836.3 DAY 4 23 26 11 7 19 21 28 25 25 20 9 MIN. QFE PRESSURE IN HPA 820.3 819.2 820.0 822.6 821.3 819.1 816.5 820.8 823.0 825.0 827.6 826.8 816.5 DAY 13 12 1 8 30 30 8 4 15 3 17 20 MEAN QNH PRESSURE IN HPA 1019.0 1019.4 1019.7 1019.3 1018.7 1015.9 1012.8 1015.8 1017.9 1022.0 1023.9 1025.0 1019.1 MAX. QNH PRESSURE IN HPA 1026.2 1025.4 1026.7 1025.6 1023.6 1020.7 1016.9 1018.7 1021.6 1025.6 1027.3 1031.1 1031.1 DAY 4 23 26 11 7 19 21 28 25 25 20 9 MIN. QNH PRESSURE IN HPA 1012.1 1010.8 1011.8 1014.9 1013.3 1010.7 1007.6 1012.7 1015.3 1017.7 1020.8 1019.8 1007.6 DAY 13 12 1 8 30 30 8 4 15 3 17 20 MEAN QFF PRESSURE IN HPA 1016.7 1015.3 1012.3 1007.9 1003.8 998.6 993.3 997.4 1001.4 1010.4 1016.5 1019.5 1007.7 MAX. QFF PRESSURE IN HPA 1024.7 1027.1 1019.0 1016.3 1009.6 1002.9 1000.5 1002.9 1005.6 1016.1 1020.5 1029.5 1029.5 DAY 14 23 26 11 8 19 22 28 26 25 26 9 MIN. QFF PRESSURE IN HPA 1010.1 1007.0 1005.3 1001.2 997.4 990.8 986.4 992.7 997.6 1001.9 1011.2 1011.3 986.4 DAY 12 15 15 21 29 30 11 21 7 1 1 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 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.7 9.4 11.4 18.4 23.7 28.5 29.4 27.3 25.1 18.3 12.8 6.6 18.0 MINIMUN AIR TEMPERATURE (C) -0.1 4.1 4.3 9.4 13.1 18.2 21.4 18.4 16.2 8.4 4.4 -2.9 9.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 7 20 4 2 0 0 0 33 DAYS WITH MINIMUM TEMP. <=-4 8 2 0 0 0 0 0 0 0 0 0 13 23 DAYS WITH FREEZING MIN.<= 0 20 4 5 0 0 0 0 0 0 0 5 26 60 TEMPERATURE RECORDS LOWEST(C) -12.0 -5.0 -3.0 3.8 8.0 14.0 14.4 14.0 12.0 4.8 -1.6 -8.6 -12.0 DAY 5 2 7 16 7 6 21 27 30 31 18 19 MAXIMUM AIR TEMPERATURE (C) 12.5 15.4 17.9 25.9 31.5 36.6 36.3 34.8 32.9 27.1 20.8 17.2 25.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 27 30 31 31 25 0 0 0 146 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.0 19.4 25.6 30.4 35.0 38.4 39.4 36.4 35.6 29.0 25.6 23.0 39.4 DAY 1 20 26 28 31 29 6 15 2 1 1 27 DIF. BETWEEN (MAX.-MIN.) (C) 12.6 11.3 13.6 16.5 18.4 18.4 14.9 16.4 16.7 18.7 16.4 20.1 16.2 MEAN DAILY TEMP. (MDT) (C) 6.2 9.8 11.1 17.7 22.3 27.4 28.8 26.6 24.6 17.7 12.6 7.2 17.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.0 47.0 192.2 243.3 173.7 108.6 0.0 0.0 0.0 765.9 HEATING DEG. DAYS(BASE 18 0C) 366.4 230.3 213.7 40.7 0.0 0.0 0.0 0.0 0.0 21.9 162.6 335.7 1371.3 DEWPOINT (MEAN C) -3.4 2.1 -2.1 -1.0 0.2 3.2 7.8 3.8 3.0 -2.1 -1.2 -7.9 0.2 MIXING RATIO (G/KG) 3.86 5.69 4.19 4.47 4.79 6.07 8.40 6.36 6.03 4.05 4.39 2.71 5.08 VAPOUR PRESSURE (HPA) 5.10 7.49 5.52 5.89 6.30 7.94 10.92 8.32 7.90 5.36 5.80 3.59 6.68 SATURATION DEF. (HPA) 4.61 4.71 8.80 16.44 24.37 32.85 31.49 29.40 25.44 17.03 9.88 7.15 17.68 RELATIVE HUMIDITY (MEAN %) 57 65 45 29 23 21 28 24 26 27 41 39 35 RELATIVE HUMIDITY (MAX. %) 81 86 69 48 35 31 40 33 40 40 60 59 52 RELATIVE HUMIDITY (MIN. %) 34 41 27 16 14 14 19 16 15 16 25 22 22 RELATIVE HUMIDITY (MEAN% 03UTC) 71 82 67 43 33 30 38 31 37 39 57 55 49 RELATIVE HUMIDITY (MEAN% 09UTC) 42 49 33 19 16 15 21 18 18 19 29 27 26 RELATIVE HUMIDITY (MEAN% 15UTC) 49 56 34 21 16 17 23 18 20 22 34 34 29 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 31.1 73.7 56.5 0.0 0.0 0.0 7.6 0.0 0.0 0.0 2.4 2.0 173.3 DAYS WITH PRECIPITATION >=10 1 2 1 0 0 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 1 5 2 0 0 0 1 0 0 0 0 0 9 DAYS WITH PRECIPITATION >= 1 6 9 6 0 0 0 1 0 0 0 1 1 24 DAYS WITH PRECIPITATION 8 12 6 0 0 0 2 0 0 0 2 1 31 GREATEST DAILY PRECIPITATION 20.0 17.0 39.0 0.0 0.0 0.0 7.0 0.0 0.0 0.0 2.0 2.0 39.0 DAY 18 6 2 ** ** ** 12 ** ** ** 23 12 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 1 0 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 135 135 225 225 45 225 135 360 45 45 225 135 135 PREVAILING WIND SPEED(KNOTS) 11.3 10.9 15.1 15.6 11.8 10.0 10.9 12.3 11.2 9.7 11.8 9.2 10.9 PREVAILING WIND PERCENT 12.9 29.5 15.7 15.8 10.9 7.5 8.1 21.8 6.7 4.8 11.3 4.8 7.8 CALMS PERCENT OF WIND 56.5 42.4 47.6 52.1 58.9 75.4 59.3 40.3 65.0 77.8 70.4 81.9 60.7 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 161 154 199 245 341 250 333 5 21 341 208 221 245 VECTOR WIND MAGNITUDE(KNOTS) 0.9 3.8 2.7 3.4 2.2 1.2 0.5 4.4 0.6 0.8 1.6 0.2 0.4 WIND STEADINESES (MEAN %) 17.6 59.4 39.7 54.0 40.7 46.2 10.2 66.7 16.2 38.1 48.5 10.5 8.7 WIND SPEED (MEAN KNOTS) 5.1 6.4 6.8 6.3 5.4 2.6 4.9 6.6 3.7 2.1 3.3 1.9 4.6 FASTEST WIND DIRECTION 220 220 220 230 20 300 30 360 10 310 330 210 20 FASTEST WIND SPEED (KNOTS) 29 29 33 43 49 19 31 23 23 16 19 19 49 DAY 10 6 27 8 28 6 19 26 9 8 4 12 DAYS WITH SKY CLEAR (0-2)/8 12 11 20 22 31 29 21 28 30 31 20 24 279 DAYS WITH P.CLOUDY (3-6)/8 12 8 5 8 0 1 10 3 0 0 10 7 64 DAYS WITH CLOUDY (7-8)/8 7 9 6 0 0 0 0 0 0 0 0 0 22 DAYS WITH VISIBILITY =< 2 KM 0 0 1 0 0 0 0 0 0 0 0 0 1 DURATION OF SUNSHINE HOURS 187.5 171.2 257.7 307.0 370.6 361.8 325.3 353.4 323.5 321.7 248.4 277.3 3505.4 ======================================================================================================================= 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 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 826.8 827.2 824.5 826.0 824.1 822.1 819.9 822.6 824.2 828.3 828.6 830.5 825.4 MAX. QFE PRESSURE IN HPA 832.0 832.6 830.0 829.9 830.0 829.1 823.3 828.8 831.0 832.3 833.9 835.6 835.6 DAY-HOUR 12- 6 12- 6 31- 6 22- 6 28- 6 1- 6 1- 6 19- 6 30- 6 11- 6 15- 6 6- 6 MIN. QFE PRESSURE IN HPA 820.3 819.5 819.0 821.4 817.7 816.0 815.2 818.4 820.8 824.7 824.3 825.3 815.2 DAY-HOUR 18-12 6- 0 3- 0 19-12 21-15 24-12 12-12 6-12 16-12 8-12 12-12 15-12 MEAN QNH PRESSURE IN HPA 1019.8 1020.4 1017.1 1018.9 1016.6 1014.3 1011.7 1014.9 1016.8 1021.7 1021.9 1024.3 1018.2 MAX. QNH PRESSURE IN HPA 1026.0 1026.7 1023.6 1023.5 1023.6 1022.6 1015.7 1022.2 1024.8 1026.4 1028.3 1030.3 1030.3 DAY-HOUR 12- 6 12- 6 31- 6 22- 6 28- 6 1- 6 1- 6 19- 6 30- 6 11- 6 15- 6 6- 6 MIN. QNH PRESSURE IN HPA 1012.1 1011.2 1010.6 1013.4 1009.0 1007.0 1006.1 1009.9 1012.7 1017.3 1016.9 1018.1 1006.1 DAY-HOUR 18-12 6- 0 3- 0 19-12 21-15 24-12 12-12 6-12 16-12 8-12 12-12 15-12 MEAN QFF PRESSURE IN HPA 1018.0 1015.7 1011.1 1008.1 1002.1 996.5 993.0 997.8 1001.3 1010.9 1015.0 1022.2 1007.6 MAX. QFF PRESSURE IN HPA 1029.1 1023.1 1019.7 1015.9 1009.0 1006.4 998.9 1005.4 1012.8 1017.2 1025.5 1030.9 1030.9 DAY-HOUR 5- 3 7- 6 19- 6 11- 6 2- 6 1- 3 31- 3 19- 3 30- 3 30- 3 15- 3 24- 3 MIN. QFF PRESSURE IN HPA 1008.0 1005.1 1004.7 1000.1 992.7 989.0 986.0 991.2 995.7 1004.9 1007.8 1012.1 986.0 DAY-HOUR 18-15 6- 9 23-12 9- 0 20-15 24-12 11-12 6-12 12-12 8-12 12-12 16-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 826.4 826.7 824.0 825.6 823.6 821.8 819.8 822.3 823.9 828.0 828.3 830.3 825.1 MAX. QFE PRESSURE IN HPA 829.6 829.6 827.9 828.8 827.8 827.3 822.3 826.5 828.3 829.8 832.3 833.7 833.7 DAY 3 8 31 5 28 1 1 19 30 12 15 6 MIN. QFE PRESSURE IN HPA 820.9 819.5 819.0 821.7 818.8 816.9 816.8 819.1 821.0 826.2 825.7 826.3 816.8 DAY 19 6 3 9 21 24 12 7 16 9 23 17 MEAN QNH PRESSURE IN HPA 1019.4 1019.7 1016.6 1018.4 1016.1 1013.9 1011.6 1014.5 1016.4 1021.3 1021.6 1024.0 1017.8 MAX. QNH PRESSURE IN HPA 1023.2 1023.2 1021.1 1022.2 1021.0 1020.4 1014.5 1019.5 1021.6 1023.4 1026.4 1028.0 1028.0 DAY 3 8 31 5 28 1 1 19 30 12 15 6 MIN. QNH PRESSURE IN HPA 1012.8 1011.2 1010.6 1013.8 1010.4 1008.1 1008.0 1010.7 1013.0 1019.1 1018.5 1019.2 1008.0 DAY 19 6 3 9 21 24 12 7 16 9 23 17 MEAN QFF PRESSURE IN HPA 1016.9 1014.7 1010.1 1007.6 1001.8 996.4 992.9 997.6 1000.5 1010.2 1013.9 1020.8 1006.9 MAX. QFF PRESSURE IN HPA 1024.4 1021.0 1017.9 1012.6 1007.8 1004.9 996.9 1003.1 1009.9 1013.3 1021.4 1026.0 1026.0 DAY 5 8 8 12 1 1 31 20 30 28 15 23 MIN. QFF PRESSURE IN HPA 1010.2 1005.7 1006.2 1000.1 994.7 990.2 988.0 991.7 996.8 1007.0 1009.4 1012.9 988.0 DAY 10 6 23 9 21 24 12 7 12 8 12 16 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 827.0 827.5 824.8 826.6 825.0 823.2 820.8 823.5 825.1 829.1 829.0 831.1 826.1 MAX. QFE PRESSURE IN HPA 830.5 831.0 828.6 829.0 829.1 828.6 823.0 828.0 829.5 830.9 832.8 834.9 834.9 DAY 12 12 31 5 28 1 1 19 30 11 15 6 MIN. QFE PRESSURE IN HPA 820.9 819.7 819.7 823.4 820.8 818.0 817.3 820.5 822.5 827.3 826.0 827.0 817.3 DAY 19 6 3 9 21 24 12 7 16 20 12 16 MEAN QNH PRESSURE IN HPA 1020.1 1020.6 1017.5 1019.6 1017.7 1015.6 1012.8 1016.0 1017.8 1022.6 1022.4 1024.9 1019.0 MAX. QNH PRESSURE IN HPA 1024.2 1024.8 1022.0 1022.4 1022.6 1022.0 1015.3 1021.3 1023.0 1024.7 1027.0 1029.4 1029.4 DAY 12 12 31 5 28 1 1 19 30 11 15 6 MIN. QNH PRESSURE IN HPA 1012.8 1011.4 1011.4 1015.8 1012.7 1009.4 1008.6 1012.4 1014.7 1020.4 1018.9 1020.1 1008.6 DAY 19 6 3 9 21 24 12 7 16 20 12 16 MEAN QFF PRESSURE IN HPA 1019.3 1016.7 1012.7 1009.7 1003.8 998.4 994.9 999.7 1003.5 1013.8 1017.3 1025.0 1009.6 MAX. QFF PRESSURE IN HPA 1029.1 1022.1 1018.5 1014.9 1008.5 1006.4 998.9 1005.4 1012.8 1017.2 1025.5 1030.9 1030.9 DAY 5 8 20 11 28 1 31 19 30 30 15 24 MIN. QFF PRESSURE IN HPA 1008.7 1005.8 1007.7 1003.6 997.5 992.1 989.4 994.7 999.0 1010.5 1010.1 1015.9 989.4 DAY 18 6 2 9 20 24 12 7 12 8 12 16 ======================================================================================================================= 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 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 828.2 828.9 825.9 827.6 825.7 823.8 821.3 824.2 826.0 830.3 830.1 832.3 827.0 MAX. QFE PRESSURE IN HPA 832.0 832.6 830.0 829.9 830.0 829.1 823.3 828.8 831.0 832.3 833.9 835.6 835.6 DAY 12 12 31 22 28 1 1 19 30 11 15 6 MIN. QFE PRESSURE IN HPA 822.0 821.2 821.0 824.0 821.4 818.8 817.8 820.5 823.7 828.0 826.8 828.7 817.8 DAY 18 6 2 19 21 24 12 7 16 8 12 15 MEAN QNH PRESSURE IN HPA 1021.5 1022.3 1018.8 1020.8 1018.5 1016.2 1013.3 1016.7 1018.8 1024.0 1023.8 1026.3 1020.1 MAX. QNH PRESSURE IN HPA 1026.0 1026.7 1023.6 1023.5 1023.6 1022.6 1015.7 1022.2 1024.8 1026.4 1028.3 1030.3 1030.3 DAY 12 12 31 22 28 1 1 19 30 11 15 6 MIN. QNH PRESSURE IN HPA 1014.1 1013.2 1013.0 1016.5 1013.4 1010.4 1009.2 1012.4 1016.2 1021.3 1019.8 1022.1 1009.2 DAY 18 6 2 19 21 24 12 7 16 8 12 15 MEAN QFF PRESSURE IN HPA 1020.1 1017.9 1012.9 1009.7 1003.9 998.3 994.4 999.5 1003.0 1012.8 1016.5 1024.7 1009.5 MAX. QFF PRESSURE IN HPA 1028.5 1023.1 1019.7 1015.9 1009.0 1005.6 997.5 1004.7 1012.1 1016.8 1023.2 1030.6 1030.6 DAY 5 7 19 11 2 1 31 19 30 17 15 23 MIN. QFF PRESSURE IN HPA 1010.7 1008.0 1005.9 1004.8 997.4 991.9 989.6 994.7 999.1 1010.1 1009.9 1017.1 989.6 DAY 18 6 2 8 20 24 12 7 7 8 12 16 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 826.9 827.6 824.9 826.6 824.5 822.7 820.2 822.8 824.5 828.6 828.6 830.5 825.7 MAX. QFE PRESSURE IN HPA 830.6 831.4 829.0 829.0 828.6 827.6 822.1 827.5 829.3 830.8 832.3 833.9 833.9 DAY 12 12 31 5 28 1 1 19 30 16 14 6 MIN. QFE PRESSURE IN HPA 822.0 819.5 820.6 822.8 820.0 817.4 817.0 819.8 822.3 826.3 825.5 826.9 817.0 DAY 18 6 3 19 21 24 12 7 16 8 12 16 MEAN QNH PRESSURE IN HPA 1020.0 1020.8 1017.6 1019.6 1017.1 1015.0 1012.0 1015.1 1017.1 1021.9 1021.9 1024.2 1018.5 MAX. QNH PRESSURE IN HPA 1024.3 1025.3 1022.4 1022.4 1022.0 1020.8 1014.3 1020.7 1022.8 1024.6 1026.4 1028.3 1028.3 DAY 12 12 31 5 28 1 1 19 30 16 14 6 MIN. QNH PRESSURE IN HPA 1014.1 1011.2 1012.5 1015.1 1011.8 1008.7 1008.2 1011.5 1014.5 1019.2 1018.3 1020.0 1008.2 DAY 18 6 3 19 21 24 12 7 16 8 12 16 MEAN QFF PRESSURE IN HPA 1017.5 1015.6 1011.0 1008.2 1002.2 996.8 992.9 997.4 1000.8 1009.8 1014.0 1020.8 1007.3 MAX. QFF PRESSURE IN HPA 1023.6 1020.8 1017.4 1015.0 1007.2 1002.7 996.3 1002.9 1009.1 1014.1 1020.0 1026.7 1026.7 DAY 27 7 19 11 1 1 14 19 30 16 15 21 MIN. QFF PRESSURE IN HPA 1009.6 1005.1 1006.6 1002.5 996.0 989.5 988.3 992.9 997.1 1006.3 1008.5 1013.6 988.3 DAY 7 6 23 8 20 24 11 6 1 8 12 16 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 825.5 826.0 823.3 824.9 822.9 821.2 818.7 821.3 823.0 827.1 827.2 829.0 824.2 MAX. QFE PRESSURE IN HPA 829.0 829.5 827.0 827.0 827.0 826.2 821.0 825.6 827.6 829.0 831.2 832.3 832.3 DAY 2 12 19 4 27 1 1 19 30 16 14 6 MIN. QFE PRESSURE IN HPA 820.3 820.4 819.6 821.4 818.0 816.0 815.2 818.4 820.8 824.7 824.3 825.3 815.2 DAY 18 6 3 19 21 24 12 6 16 8 12 15 MEAN QNH PRESSURE IN HPA 1018.3 1018.9 1015.7 1017.6 1015.2 1013.2 1010.3 1013.3 1015.3 1020.1 1020.3 1022.5 1016.7 MAX. QNH PRESSURE IN HPA 1022.4 1023.0 1020.1 1020.1 1020.1 1019.1 1013.0 1018.4 1020.8 1022.4 1025.1 1026.4 1026.4 DAY 2 12 19 4 27 1 1 19 30 16 14 6 MIN. QNH PRESSURE IN HPA 1012.1 1012.2 1011.3 1013.4 1009.4 1007.0 1006.1 1009.9 1012.7 1017.3 1016.9 1018.1 1006.1 DAY 18 6 3 19 21 24 12 6 16 8 12 15 MEAN QFF PRESSURE IN HPA 1015.8 1013.8 1009.2 1006.7 1000.8 995.5 991.6 996.2 999.5 1009.0 1012.6 1019.0 1005.8 MAX. QFF PRESSURE IN HPA 1023.1 1020.4 1016.0 1012.3 1006.5 1003.0 995.4 1001.9 1008.5 1012.0 1019.6 1024.2 1024.2 DAY 5 7 19 11 27 1 14 19 30 28 15 6 MIN. QFF PRESSURE IN HPA 1008.2 1006.6 1004.7 1001.1 993.3 989.0 986.0 991.2 995.7 1004.9 1007.8 1012.1 986.0 DAY 7 6 23 8 20 24 11 6 12 8 12 16 ======================================================================================================================= 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 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 826.1 826.4 823.6 824.9 822.9 820.9 818.7 821.4 823.1 827.3 828.0 829.8 824.4 MAX. QFE PRESSURE IN HPA 830.3 830.1 827.4 828.0 827.0 825.8 821.0 825.6 828.2 829.0 831.7 832.5 832.5 DAY 13 12 19 4 27 1 8 19 30 16 14 24 MIN. QFE PRESSURE IN HPA 820.3 822.6 819.3 821.4 817.7 816.2 815.3 818.4 820.8 824.7 825.6 825.3 815.3 DAY 18 6 2 19 21 24 11 6 16 8 12 15 MEAN QNH PRESSURE IN HPA 1019.1 1019.4 1016.0 1017.6 1015.2 1012.9 1010.3 1013.4 1015.5 1020.4 1021.2 1023.4 1017.0 MAX. QNH PRESSURE IN HPA 1024.0 1023.7 1020.6 1021.3 1020.1 1018.7 1013.0 1018.4 1021.5 1022.4 1025.6 1026.6 1026.6 DAY 13 12 19 4 27 1 8 19 30 16 14 24 MIN. QNH PRESSURE IN HPA 1012.1 1014.9 1010.9 1013.4 1009.0 1007.3 1006.2 1009.9 1012.7 1017.3 1018.4 1018.1 1006.2 DAY 18 6 2 19 21 24 11 6 16 8 12 15 MEAN QFF PRESSURE IN HPA 1018.2 1015.4 1011.1 1007.5 1001.2 995.5 992.3 997.1 1001.2 1011.6 1016.1 1023.4 1007.6 MAX. QFF PRESSURE IN HPA 1026.4 1021.8 1018.1 1013.5 1006.0 1002.4 997.1 1002.4 1010.5 1014.7 1023.8 1029.0 1029.0 DAY 5 7 19 11 1 1 13 19 30 30 15 23 MIN. QFF PRESSURE IN HPA 1008.0 1010.0 1006.1 1001.4 992.7 989.8 986.5 992.1 996.4 1007.3 1010.5 1015.4 986.5 DAY 18 6 2 8 20 24 11 6 12 8 12 15 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 827.1 827.5 824.6 826.1 824.1 821.7 819.8 822.6 824.2 828.3 828.8 830.7 825.5 MAX. QFE PRESSURE IN HPA 831.0 830.4 828.2 829.6 828.0 826.8 822.5 827.0 829.1 830.0 832.4 834.0 834.0 DAY 12 7 31 4 27 1 8 18 30 16 15 6 MIN. QFE PRESSURE IN HPA 820.9 823.0 819.9 822.6 819.2 817.6 816.5 819.4 821.6 825.8 826.8 826.6 816.5 DAY 18 5 2 19 20 23 11 6 15 8 22 15 MEAN QNH PRESSURE IN HPA 1020.2 1020.7 1017.3 1019.0 1016.6 1013.8 1011.6 1014.9 1016.8 1021.6 1022.2 1024.4 1018.3 MAX. QNH PRESSURE IN HPA 1024.8 1024.1 1021.5 1023.2 1021.3 1019.8 1014.7 1020.1 1022.6 1023.6 1026.5 1028.4 1028.4 DAY 12 7 31 4 27 1 8 18 30 16 15 6 MIN. QNH PRESSURE IN HPA 1012.8 1015.3 1011.7 1014.9 1010.8 1008.9 1007.6 1011.1 1013.7 1018.7 1019.8 1019.6 1007.6 DAY 18 5 2 19 20 23 11 6 15 8 22 15 MEAN QFF PRESSURE IN HPA 1018.8 1016.2 1011.3 1007.8 1002.0 995.9 992.8 997.8 1001.1 1010.6 1015.2 1022.8 1007.7 MAX. QFF PRESSURE IN HPA 1027.0 1023.0 1018.4 1014.0 1007.2 1002.5 996.2 1002.9 1009.8 1013.8 1021.5 1028.4 1028.4 DAY 5 7 19 11 1 1 13 18 30 16 15 6 MIN. QFF PRESSURE IN HPA 1009.4 1011.7 1006.9 1002.7 994.5 990.1 987.7 993.4 997.0 1006.5 1009.5 1014.4 987.7 DAY 18 5 2 8 20 23 11 6 15 8 1 15 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 826.9 827.5 824.7 826.1 824.1 821.9 820.2 822.8 824.3 828.3 828.8 830.6 825.5 MAX. QFE PRESSURE IN HPA 830.7 830.4 828.2 829.4 828.5 826.5 822.5 827.0 828.8 830.0 832.4 833.8 833.8 DAY 2 7 31 4 27 1 8 18 30 16 15 24 MIN. QFE PRESSURE IN HPA 820.9 822.3 819.9 822.7 819.5 817.6 816.5 819.1 821.6 825.8 826.7 826.6 816.5 DAY 18 5 2 8 20 23 11 6 15 8 3 15 MEAN QNH PRESSURE IN HPA 1019.9 1020.6 1017.3 1019.0 1016.6 1014.0 1012.0 1015.1 1016.9 1021.6 1022.3 1024.4 1018.3 MAX. QNH PRESSURE IN HPA 1024.5 1024.1 1021.5 1022.9 1021.9 1019.5 1014.7 1020.1 1022.2 1023.6 1026.5 1028.1 1028.1 DAY 2 7 31 4 27 1 8 18 30 16 15 24 MIN. QNH PRESSURE IN HPA 1012.8 1014.5 1011.7 1015.0 1011.2 1008.9 1007.6 1010.7 1013.7 1018.7 1019.7 1019.6 1007.6 DAY 18 5 2 8 20 23 11 6 15 8 3 15 MEAN QFF PRESSURE IN HPA 1017.6 1015.3 1010.6 1007.5 1001.6 995.8 992.9 997.5 1000.6 1009.7 1014.5 1021.0 1007.1 MAX. QFF PRESSURE IN HPA 1024.1 1021.6 1018.5 1012.4 1006.9 1000.6 996.2 1003.1 1008.6 1012.7 1020.6 1026.7 1026.7 DAY 3 7 7 11 27 1 29 19 30 28 15 24 MIN. QFF PRESSURE IN HPA 1010.9 1010.0 1007.5 1001.5 994.9 989.8 986.7 992.5 996.8 1005.1 1009.2 1013.0 986.7 DAY 9 20 23 8 20 23 11 6 11 8 1 15 ======================================================================================================================= 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 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.4 7.8 12.0 20.4 25.5 28.0 28.2 27.0 25.1 17.9 10.6 7.8 18.0 MINIMUN AIR TEMPERATURE (C) -0.1 -0.3 2.6 10.5 14.2 18.6 19.1 17.6 16.7 8.4 3.6 1.2 9.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 7 9 3 3 0 0 0 22 DAYS WITH MINIMUM TEMP. <=-4 10 11 0 0 0 0 0 0 0 0 0 7 28 DAYS WITH FREEZING MIN.<= 0 14 19 15 0 0 0 0 0 0 0 7 15 70 TEMPERATURE RECORDS LOWEST(C) -8.0 -7.0 -3.4 4.0 10.0 14.0 14.2 13.0 11.0 4.6 -2.6 -7.0 -8.0 DAY 2 11 4 1 13 20 18 14 25 25 27 28 MAXIMUM AIR TEMPERATURE (C) 13.1 15.5 19.9 28.2 33.8 35.2 35.2 34.6 32.8 26.5 17.7 15.2 25.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 11 31 30 31 31 30 1 0 0 165 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.0 21.6 26.0 31.6 36.6 38.5 39.0 36.6 36.0 30.6 25.6 21.0 39.0 DAY 6 27 24 21 29 29 9 4 1 1 1 1 DIF. BETWEEN (MAX.-MIN.) (C) 13.2 15.8 17.3 17.7 19.6 16.6 16.1 17.0 16.1 18.1 14.1 14.0 16.3 MEAN DAILY TEMP. (MDT) (C) 6.5 7.6 11.3 19.4 24.0 26.9 27.2 26.1 24.7 17.5 10.6 8.2 17.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 9.7 93.3 177.1 190.7 159.1 112.4 1.9 0.0 0.0 744.2 HEATING DEG. DAYS(BASE 18 0C) 355.5 301.1 212.2 16.4 0.0 0.0 0.0 0.0 0.0 28.1 221.4 302.7 1437.4 DEWPOINT (MEAN C) -3.7 -6.2 -6.9 -1.2 -0.5 -0.5 1.7 -0.3 2.5 -0.7 -0.1 -2.4 -1.5 MIXING RATIO (G/KG) 3.84 3.05 2.94 4.40 4.60 4.60 5.55 4.72 5.78 4.54 4.83 4.05 4.41 VAPOUR PRESSURE (HPA) 5.06 4.02 3.88 5.79 6.04 6.02 7.25 6.18 7.59 6.00 6.38 5.36 5.80 SATURATION DEF. (HPA) 5.09 7.39 11.19 19.59 28.48 33.23 32.68 31.09 25.75 15.73 7.12 5.94 18.61 RELATIVE HUMIDITY (MEAN %) 54 40 28 25 19 17 19 18 25 31 52 53 32 RELATIVE HUMIDITY (MAX. %) 74 60 45 39 30 25 29 28 41 44 75 76 47 RELATIVE HUMIDITY (MIN. %) 35 23 16 16 12 10 13 11 15 19 31 30 19 RELATIVE HUMIDITY (MEAN% 03UTC) 68 58 43 36 28 24 26 25 38 43 72 72 44 RELATIVE HUMIDITY (MEAN% 09UTC) 42 29 19 19 14 12 14 13 17 22 36 38 23 RELATIVE HUMIDITY (MEAN% 15UTC) 48 30 21 19 14 12 15 13 19 26 46 46 26 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 35.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13.1 18.0 66.7 DAYS WITH PRECIPITATION >=10 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH PRECIPITATION >= 5 3 0 0 0 0 0 0 0 0 0 1 2 6 DAYS WITH PRECIPITATION >= 1 5 0 0 0 0 0 0 0 0 0 3 3 11 DAYS WITH PRECIPITATION 6 0 0 0 0 0 0 0 0 0 5 5 16 GREATEST DAILY PRECIPITATION 12.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8.0 9.6 12.6 DAY 9 ** ** ** ** ** ** ** ** ** 9 11 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 0 1 0 0 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 135 225 225 270 225 225 360 360 225 225 135 135 135 PREVAILING WIND SPEED(KNOTS) 10.7 13.3 15.2 12.4 11.1 11.8 13.5 13.4 9.4 11.1 9.3 9.8 10.3 PREVAILING WIND PERCENT 19.0 9.1 14.9 9.2 9.7 10.8 25.8 23.8 8.8 3.2 6.7 12.1 6.9 CALMS PERCENT OF WIND 56.9 65.1 59.7 67.1 69.4 47.5 39.1 46.4 68.8 84.7 80.0 72.6 63.0 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 161 253 234 275 250 68 12 360 184 235 153 170 292 VECTOR WIND MAGNITUDE(KNOTS) 2.6 1.6 3.0 2.0 1.6 0.7 5.0 4.7 0.8 0.4 0.6 1.1 0.4 WIND STEADINESES (MEAN %) 54.2 42.1 58.8 52.6 50.0 11.3 64.1 75.8 25.0 25.0 30.0 39.3 9.5 WIND SPEED (MEAN KNOTS) 4.8 3.8 5.1 3.8 3.2 6.2 7.8 6.2 3.2 1.6 2.0 2.8 4.2 FASTEST WIND DIRECTION 160 240 240 270 300 40 40 360 350 240 210 190 40 FASTEST WIND SPEED (KNOTS) 31 23 29 29 19 23 33 25 25 31 17 19 33 DAY 28 14 9 21 1 14 1 24 9 2 5 25 DAYS WITH SKY CLEAR (0-2)/8 20 23 24 22 27 26 26 31 27 28 15 22 291 DAYS WITH P.CLOUDY (3-6)/8 6 6 7 8 4 4 5 0 3 3 10 3 59 DAYS WITH CLOUDY (7-8)/8 5 0 0 0 0 0 0 0 0 0 5 6 16 DAYS WITH VISIBILITY =< 2 KM 1 0 0 0 0 0 0 0 0 0 0 0 1 DURATION OF SUNSHINE HOURS 216.8 272.4 296.7 294.8 371.2 348.4 346.7 365.7 312.1 310.8 225.2 223.3 3584.1 ======================================================================================================================= 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 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 826.2 825.7 825.2 826.0 823.6 821.1 821.2 822.5 824.5 828.5 828.9 828.6 825.2 MAX. QFE PRESSURE IN HPA 833.5 832.0 830.0 829.2 829.0 825.0 826.4 826.8 830.8 833.0 835.5 834.8 835.5 DAY-HOUR 31- 6 11- 6 21- 6 10- 6 6- 6 4- 6 30- 6 23- 6 29- 6 16- 6 30- 6 17- 6 MIN. QFE PRESSURE IN HPA 820.6 818.4 820.2 822.0 818.6 817.1 815.3 817.3 816.0 824.0 822.0 822.0 815.3 DAY-HOUR 17- 9 7-12 13-12 6-12 17-15 25-15 9-15 31-15 1-12 1-12 6-12 15-12 MEAN QNH PRESSURE IN HPA 1019.2 1018.5 1017.9 1018.9 1016.1 1013.0 1013.2 1014.8 1017.1 1021.8 1022.4 1021.9 1017.9 MAX. QNH PRESSURE IN HPA 1027.8 1026.0 1023.6 1022.7 1022.4 1017.7 1019.4 1019.8 1024.6 1027.2 1030.2 1029.3 1030.2 DAY-HOUR 31- 6 11- 6 21- 6 10- 6 6- 6 4- 6 30- 6 23- 6 29- 6 16- 6 30- 6 17- 6 MIN. QNH PRESSURE IN HPA 1012.5 1009.9 1012.0 1014.1 1010.1 1008.3 1006.2 1008.6 1007.0 1016.5 1014.1 1014.1 1006.2 DAY-HOUR 17- 9 7-12 13-12 6-12 17-15 25-15 9-15 31-15 1-12 1-12 6-12 15-12 MEAN QFF PRESSURE IN HPA 1016.8 1015.3 1011.7 1006.7 1000.4 995.7 995.7 998.1 1001.5 1011.3 1016.9 1018.7 1007.4 MAX. QFF PRESSURE IN HPA 1029.2 1028.2 1021.3 1014.1 1007.2 1001.3 1003.6 1004.9 1010.7 1018.5 1027.9 1030.9 1030.9 DAY-HOUR 31- 3 11- 6 4- 3 2- 3 1- 3 17- 3 23- 3 14- 6 29- 6 30- 3 30- 3 17- 6 MIN. QFF PRESSURE IN HPA 1009.1 1006.0 1005.8 999.4 992.8 990.2 986.0 990.2 990.3 1002.1 1005.9 1008.8 986.0 DAY-HOUR 21- 0 7-12 24-12 21-12 27-12 24-15 10- 0 31-12 2-12 1-12 6-12 15- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 825.9 825.1 824.8 825.6 823.3 820.8 821.1 822.4 824.0 828.1 828.6 828.3 824.8 MAX. QFE PRESSURE IN HPA 831.9 829.6 828.5 827.5 827.1 823.5 825.2 825.1 827.9 830.7 832.4 832.8 832.8 DAY 31 11 22 10 6 18 30 14 30 26 30 1 MIN. QFE PRESSURE IN HPA 821.7 819.1 821.0 822.7 819.8 817.7 815.9 819.0 817.3 824.6 823.2 822.5 815.9 DAY 11 8 3 7 18 25 10 31 2 2 7 15 MEAN QNH PRESSURE IN HPA 1018.7 1017.9 1017.5 1018.4 1015.7 1012.7 1013.1 1014.6 1016.5 1021.4 1021.9 1021.6 1017.5 MAX. QNH PRESSURE IN HPA 1025.9 1023.2 1021.9 1020.7 1020.2 1015.9 1017.9 1017.8 1021.1 1024.5 1026.5 1027.0 1027.0 DAY 31 11 22 10 6 18 30 14 30 26 30 1 MIN. QNH PRESSURE IN HPA 1013.8 1010.7 1013.0 1015.0 1011.5 1009.0 1006.9 1010.6 1008.6 1017.2 1015.6 1014.7 1006.9 DAY 11 8 3 7 18 25 10 31 2 2 7 15 MEAN QFF PRESSURE IN HPA 1015.7 1014.1 1010.8 1006.3 1000.3 995.5 995.7 997.8 1000.6 1010.3 1015.9 1017.5 1006.7 MAX. QFF PRESSURE IN HPA 1026.2 1024.2 1019.2 1012.4 1005.4 1001.0 1002.4 1002.6 1007.3 1014.2 1022.9 1026.9 1026.9 DAY 31 11 4 1 2 18 30 14 25 26 18 18 MIN. QFF PRESSURE IN HPA 1009.1 1006.4 1007.2 1001.2 994.3 990.7 986.0 991.7 990.4 1003.5 1007.9 1008.8 986.0 DAY 21 28 14 22 28 25 10 31 2 2 6 15 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 826.5 825.9 825.8 826.8 824.5 822.0 822.3 823.5 825.4 829.2 829.3 829.0 825.9 MAX. QFE PRESSURE IN HPA 832.6 831.0 829.1 829.1 828.0 824.3 826.0 826.0 829.2 832.5 833.9 832.8 833.9 DAY 31 11 22 25 7 17 30 13 29 26 30 1 MIN. QFE PRESSURE IN HPA 821.2 819.5 823.0 824.1 820.9 819.5 818.0 819.8 819.1 825.8 824.3 823.2 818.0 DAY 17 8 11 6 17 25 10 31 1 2 7 15 MEAN QNH PRESSURE IN HPA 1019.5 1018.8 1018.7 1019.9 1017.1 1014.2 1014.5 1016.0 1018.1 1022.7 1022.8 1022.4 1018.7 MAX. QNH PRESSURE IN HPA 1026.7 1024.8 1022.6 1022.6 1021.3 1016.9 1018.9 1018.9 1022.7 1026.6 1028.3 1027.0 1028.3 DAY 31 11 22 25 7 17 30 13 29 26 30 1 MIN. QNH PRESSURE IN HPA 1013.2 1011.2 1015.3 1016.6 1012.8 1011.2 1009.4 1011.5 1010.7 1018.7 1016.9 1015.6 1009.4 DAY 17 8 11 6 17 25 10 31 1 2 7 15 MEAN QFF PRESSURE IN HPA 1018.3 1017.0 1013.8 1008.9 1002.1 997.4 997.6 1000.1 1003.7 1014.0 1019.0 1020.4 1009.4 MAX. QFF PRESSURE IN HPA 1029.2 1027.7 1021.3 1014.1 1007.2 1001.3 1003.6 1004.8 1010.6 1018.5 1027.9 1028.8 1029.2 DAY 31 11 4 2 1 17 23 14 29 30 30 18 MIN. QFF PRESSURE IN HPA 1011.8 1009.0 1009.3 1003.1 996.8 993.5 989.5 993.1 995.0 1005.1 1010.2 1010.4 989.5 DAY 17 28 18 22 27 24 10 31 2 2 6 15 ======================================================================================================================= 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 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 827.8 827.2 827.0 827.7 825.2 822.6 822.6 824.2 826.3 830.3 830.4 830.2 826.8 MAX. QFE PRESSURE IN HPA 833.5 832.0 830.0 829.2 829.0 825.0 826.4 826.8 830.8 833.0 835.5 834.8 835.5 DAY 31 11 21 10 6 4 30 23 29 16 30 17 MIN. QFE PRESSURE IN HPA 821.6 821.2 824.2 825.0 821.6 820.0 818.4 820.8 819.1 826.6 825.0 824.5 818.4 DAY 17 8 13 6 17 26 12 31 1 2 22 15 MEAN QNH PRESSURE IN HPA 1021.0 1020.3 1020.0 1020.9 1018.0 1014.9 1014.9 1016.8 1019.2 1024.0 1024.1 1023.9 1019.8 MAX. QNH PRESSURE IN HPA 1027.8 1026.0 1023.6 1022.7 1022.4 1017.7 1019.4 1019.8 1024.6 1027.2 1030.2 1029.3 1030.2 DAY 31 11 21 10 6 4 30 23 29 16 30 17 MIN. QNH PRESSURE IN HPA 1013.7 1013.2 1016.8 1017.7 1013.7 1011.8 1009.9 1012.7 1010.7 1019.6 1017.7 1017.1 1009.9 DAY 17 8 13 6 17 26 12 31 1 2 22 15 MEAN QFF PRESSURE IN HPA 1018.8 1017.4 1013.7 1008.4 1002.1 997.4 996.9 1000.0 1003.4 1013.2 1018.6 1020.8 1009.2 MAX. QFF PRESSURE IN HPA 1029.1 1028.2 1019.6 1013.7 1007.1 1001.3 1003.5 1004.9 1010.7 1016.9 1027.1 1030.9 1030.9 DAY 31 11 4 2 4 18 26 14 29 29 30 17 MIN. QFF PRESSURE IN HPA 1011.1 1010.9 1009.9 1003.3 996.6 993.6 989.7 994.4 993.0 1005.2 1011.4 1012.6 989.7 DAY 17 7 24 21 27 26 11 31 1 2 6 15 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 826.3 826.1 825.6 826.4 824.2 821.5 821.3 822.7 824.8 828.7 828.9 828.5 825.4 MAX. QFE PRESSURE IN HPA 831.3 830.7 828.5 829.1 828.0 824.0 825.0 825.2 829.5 831.4 834.0 833.0 834.0 DAY 31 24 21 25 6 3 30 20 29 26 30 17 MIN. QFE PRESSURE IN HPA 820.6 819.7 822.2 824.0 820.5 819.0 817.0 819.5 818.0 825.3 824.0 822.8 817.0 DAY 17 7 2 6 17 26 12 31 1 2 6 15 MEAN QNH PRESSURE IN HPA 1019.2 1019.0 1018.5 1019.4 1016.7 1013.6 1013.3 1015.0 1017.5 1022.1 1022.3 1021.9 1018.2 MAX. QNH PRESSURE IN HPA 1025.2 1024.5 1021.9 1022.6 1021.3 1016.5 1017.7 1017.9 1023.0 1025.3 1028.4 1027.2 1028.4 DAY 31 24 21 25 6 3 30 20 29 26 30 17 MIN. QNH PRESSURE IN HPA 1012.5 1011.4 1014.4 1016.5 1012.4 1010.6 1008.2 1011.2 1009.4 1018.1 1016.5 1015.1 1008.2 DAY 17 7 2 6 17 26 12 31 1 2 6 15 MEAN QFF PRESSURE IN HPA 1016.2 1015.1 1011.5 1006.7 1000.6 995.9 995.4 997.7 1001.3 1010.5 1015.9 1018.0 1007.1 MAX. QFF PRESSURE IN HPA 1024.8 1024.5 1017.5 1011.8 1005.5 999.8 1001.7 1002.5 1008.6 1014.1 1023.2 1028.2 1028.2 DAY 31 11 4 25 1 17 29 13 29 25 30 17 MIN. QFF PRESSURE IN HPA 1009.2 1006.9 1007.4 1001.5 994.8 992.3 987.1 992.6 991.9 1003.7 1009.1 1010.9 987.1 DAY 17 7 24 21 27 6 12 31 2 1 6 15 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 825.1 824.4 823.9 824.7 822.4 820.0 819.9 821.2 823.1 827.2 827.7 827.3 823.9 MAX. QFE PRESSURE IN HPA 829.7 828.5 826.4 826.7 825.6 822.8 823.5 824.4 828.1 829.6 832.3 831.6 832.3 DAY 30 24 21 24 5 17 29 13 29 26 30 17 MIN. QFE PRESSURE IN HPA 821.0 818.4 820.2 822.0 819.0 817.6 815.9 817.6 816.0 824.0 822.0 822.0 815.9 DAY 10 7 13 6 17 25 9 31 1 1 6 15 MEAN QNH PRESSURE IN HPA 1017.8 1017.0 1016.3 1017.3 1014.6 1011.8 1011.7 1013.2 1015.5 1020.3 1020.9 1020.4 1016.4 MAX. QNH PRESSURE IN HPA 1023.3 1021.9 1019.4 1019.7 1018.4 1015.1 1015.9 1017.0 1021.4 1023.2 1026.4 1025.5 1026.4 DAY 30 24 21 24 5 17 29 13 29 26 30 17 MIN. QNH PRESSURE IN HPA 1013.0 1009.9 1012.0 1014.1 1010.6 1008.9 1006.9 1008.9 1007.0 1016.5 1014.1 1014.1 1006.9 DAY 10 7 13 6 17 25 9 31 1 1 6 15 MEAN QFF PRESSURE IN HPA 1014.8 1013.0 1009.6 1005.0 999.0 994.5 994.3 996.4 999.8 1009.2 1014.9 1016.3 1005.6 MAX. QFF PRESSURE IN HPA 1021.9 1021.9 1014.5 1010.4 1003.9 1000.1 1000.7 1001.6 1007.0 1012.8 1021.3 1025.9 1025.9 DAY 25 11 3 1 1 17 29 13 29 28 17 17 MIN. QFF PRESSURE IN HPA 1009.1 1006.0 1005.8 999.4 992.8 990.6 986.4 990.2 990.3 1002.1 1005.9 1009.2 986.4 DAY 21 7 24 21 27 25 11 31 2 1 6 6 ======================================================================================================================= 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 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 825.7 824.9 824.1 824.8 822.3 819.7 819.9 821.3 823.2 827.4 828.4 828.1 824.2 MAX. QFE PRESSURE IN HPA 831.2 829.0 826.4 828.3 825.6 822.5 823.9 824.4 827.7 829.8 833.0 832.4 833.0 DAY 30 11 21 24 1 17 30 13 29 25 30 17 MIN. QFE PRESSURE IN HPA 821.0 819.2 820.2 822.5 818.6 817.1 815.3 817.3 816.5 824.4 822.2 822.5 815.3 DAY 17 7 13 6 17 25 9 31 1 1 6 15 MEAN QNH PRESSURE IN HPA 1018.6 1017.6 1016.6 1017.5 1014.5 1011.4 1011.7 1013.3 1015.6 1020.6 1021.7 1021.4 1016.7 MAX. QNH PRESSURE IN HPA 1025.1 1022.4 1019.4 1021.6 1018.4 1014.7 1016.4 1017.0 1020.9 1023.4 1027.2 1026.5 1027.2 DAY 30 11 21 24 1 17 30 13 29 25 30 17 MIN. QNH PRESSURE IN HPA 1013.0 1010.8 1012.0 1014.7 1010.1 1008.3 1006.2 1008.6 1007.6 1017.0 1014.4 1014.7 1006.2 DAY 17 7 13 6 17 25 9 31 1 1 6 15 MEAN QFF PRESSURE IN HPA 1017.4 1015.7 1011.7 1006.3 999.3 994.6 994.8 997.3 1001.2 1011.8 1017.9 1019.4 1007.3 MAX. QFF PRESSURE IN HPA 1023.9 1024.7 1018.5 1011.0 1005.3 999.2 1000.8 1002.7 1008.4 1016.4 1026.8 1028.9 1028.9 DAY 25 11 3 2 1 17 30 13 29 25 30 17 MIN. QFF PRESSURE IN HPA 1010.3 1008.2 1007.4 1001.7 993.3 990.2 986.8 990.8 992.6 1004.0 1008.1 1011.4 986.8 DAY 17 7 18 21 27 24 11 31 1 2 6 15 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 826.5 825.9 825.3 826.1 823.4 820.8 821.1 822.5 824.5 828.4 829.2 828.8 825.2 MAX. QFE PRESSURE IN HPA 832.6 830.0 828.2 829.2 827.0 823.5 825.0 825.8 828.4 831.1 833.7 832.7 833.7 DAY 30 10 21 24 6 17 29 13 29 25 30 17 MIN. QFE PRESSURE IN HPA 822.0 819.5 821.4 823.5 819.8 817.7 816.1 818.1 817.4 825.5 823.4 823.0 816.1 DAY 10 7 5 6 16 6 9 31 1 1 6 15 MEAN QNH PRESSURE IN HPA 1019.5 1018.8 1018.0 1019.0 1015.8 1012.7 1013.1 1014.7 1017.1 1021.8 1022.7 1022.2 1018.0 MAX. QNH PRESSURE IN HPA 1026.7 1023.6 1021.5 1022.7 1020.1 1015.9 1017.7 1018.7 1021.7 1024.9 1028.0 1026.8 1028.0 DAY 30 10 21 24 6 17 29 13 29 25 30 17 MIN. QNH PRESSURE IN HPA 1014.1 1011.2 1013.4 1015.9 1011.5 1009.0 1007.2 1009.5 1008.7 1018.3 1015.8 1015.3 1007.2 DAY 10 7 5 6 16 6 9 31 1 1 6 15 MEAN QFF PRESSURE IN HPA 1017.3 1015.8 1011.6 1006.3 1000.0 995.2 995.2 998.0 1001.5 1011.1 1017.3 1019.2 1007.4 MAX. QFF PRESSURE IN HPA 1026.6 1026.3 1019.9 1011.6 1005.2 1000.5 1001.6 1004.2 1007.1 1015.3 1025.5 1028.9 1028.9 DAY 30 10 3 1 4 17 26 13 22 25 17 17 MIN. QFF PRESSURE IN HPA 1011.4 1008.0 1006.7 1001.5 994.5 991.3 987.3 992.0 991.0 1004.4 1010.0 1012.2 987.3 DAY 17 7 2 21 28 6 10 31 1 1 6 15 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 826.4 825.8 825.3 826.1 823.7 821.1 821.4 822.7 824.6 828.5 829.1 828.6 825.3 MAX. QFE PRESSURE IN HPA 832.6 830.4 828.2 828.2 827.1 823.5 825.2 825.8 828.4 831.1 833.4 832.6 833.4 DAY 30 10 21 24 5 17 29 23 29 25 30 17 MIN. QFE PRESSURE IN HPA 822.0 819.5 821.6 823.5 820.8 818.5 816.8 818.6 818.3 825.5 823.0 823.0 816.8 DAY 10 7 2 6 16 6 9 31 1 1 6 15 MEAN QNH PRESSURE IN HPA 1019.3 1018.6 1018.1 1019.0 1016.1 1013.1 1013.4 1014.9 1017.3 1021.9 1022.6 1021.9 1018.0 MAX. QNH PRESSURE IN HPA 1026.7 1024.1 1021.5 1021.5 1020.2 1015.9 1017.9 1018.7 1021.7 1024.9 1027.7 1026.7 1027.7 DAY 30 10 21 24 5 17 29 23 29 25 30 17 MIN. QNH PRESSURE IN HPA 1014.1 1011.2 1013.7 1015.9 1012.7 1010.0 1008.0 1010.1 1009.8 1018.3 1015.3 1015.3 1008.0 DAY 10 7 2 6 16 6 9 31 1 1 6 15 MEAN QFF PRESSURE IN HPA 1016.4 1014.6 1011.1 1006.2 1000.0 995.5 995.6 997.7 1001.0 1010.5 1016.2 1018.1 1006.9 MAX. QFF PRESSURE IN HPA 1026.6 1025.8 1019.6 1011.9 1004.8 999.7 1001.5 1003.5 1006.8 1013.6 1022.9 1028.0 1028.0 DAY 30 10 3 1 1 17 29 13 25 25 17 17 MIN. QFF PRESSURE IN HPA 1011.1 1007.7 1007.2 1002.3 994.8 991.2 987.0 991.7 991.4 1004.2 1009.1 1010.4 987.0 DAY 6 7 2 21 27 6 9 30 1 1 6 14 ======================================================================================================================= 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 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.9 7.9 13.5 19.7 25.0 28.1 30.4 27.9 24.6 19.2 11.7 10.4 18.6 MINIMUN AIR TEMPERATURE (C) -2.8 -0.3 5.4 9.8 15.0 19.6 22.6 19.2 15.6 9.4 2.2 4.0 10.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 11 22 10 1 0 0 0 44 DAYS WITH MINIMUM TEMP. <=-4 13 5 0 0 0 0 0 0 0 0 0 0 18 DAYS WITH FREEZING MIN.<= 0 22 19 2 0 0 0 0 0 0 0 9 10 62 TEMPERATURE RECORDS LOWEST(C) -12.4 -7.4 -0.2 4.6 7.0 14.0 16.0 14.8 11.0 6.0 -3.6 -1.4 -12.4 DAY 29 1 12 16 7 1 26 2 23 12 22 11 MAXIMUM AIR TEMPERATURE (C) 13.4 15.8 20.6 27.7 32.9 35.4 37.5 35.6 32.4 28.1 20.4 17.2 26.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 5 28 29 31 31 24 2 0 0 150 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.0 22.0 26.0 31.4 36.6 38.4 41.0 37.4 36.6 31.4 25.6 20.0 41.0 DAY 16 20 31 27 17 28 10 9 2 1 4 7 DIF. BETWEEN (MAX.-MIN.) (C) 16.2 16.1 15.2 17.9 17.9 15.8 14.9 16.4 16.8 18.7 18.2 13.2 16.4 MEAN DAILY TEMP. (MDT) (C) 5.3 7.8 13.0 18.7 24.0 27.5 30.0 27.4 24.0 18.7 11.3 10.6 18.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 3.3 97.6 195.4 280.4 199.3 92.4 7.3 0.0 0.0 875.7 HEATING DEG. DAYS(BASE 18 0C) 394.5 286.8 154.6 12.8 0.3 0.0 0.0 0.0 0.0 10.7 199.7 230.8 1290.1 DEWPOINT (MEAN C) -6.4 -6.7 -1.4 -3.2 -1.8 2.6 6.1 1.3 2.2 -2.2 -4.9 1.2 -1.1 MIXING RATIO (G/KG) 3.01 3.00 4.44 3.74 4.17 6.13 7.56 5.52 5.61 4.02 3.41 5.22 4.65 VAPOUR PRESSURE (HPA) 3.98 3.96 5.84 4.94 5.48 7.99 9.84 7.23 7.38 5.33 4.52 6.91 6.12 SATURATION DEF. (HPA) 5.37 7.44 10.42 19.36 27.96 31.58 35.24 32.01 25.19 18.26 10.37 6.21 19.12 RELATIVE HUMIDITY (MEAN %) 49 39 40 23 18 23 23 20 25 25 35 56 31 RELATIVE HUMIDITY (MAX. %) 72 62 64 36 29 35 35 31 39 38 56 79 48 RELATIVE HUMIDITY (MIN. %) 27 21 23 13 11 14 14 12 15 15 20 35 18 RELATIVE HUMIDITY (MEAN% 03UTC) 69 58 60 35 27 31 33 29 38 38 54 77 46 RELATIVE HUMIDITY (MEAN% 09UTC) 36 27 29 15 12 17 16 13 18 18 23 42 22 RELATIVE HUMIDITY (MEAN% 15UTC) 39 32 31 16 14 18 18 14 19 21 30 49 25 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 4.0 6.0 11.6 0.0 2.0 3.6 0.0 0.0 0.0 0.0 0.0 21.7 48.9 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 0 1 1 DAYS WITH PRECIPITATION >= 5 0 1 1 0 0 0 0 0 0 0 0 2 4 DAYS WITH PRECIPITATION >= 1 1 2 3 0 1 1 0 0 0 0 0 3 11 DAYS WITH PRECIPITATION 1 2 5 0 1 2 0 0 0 0 0 4 15 GREATEST DAILY PRECIPITATION 4.0 5.0 6.0 0.0 2.0 3.0 0.0 0.0 0.0 0.0 0.0 14.0 14.0 DAY 9 11 15 ** 6 15 ** ** ** ** ** 14 DAY WITH THUNDER STORM 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH SNOW OR SLEET 0 1 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 1 0 0 0 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 135 225 135 225 225 45 135 45 135 360 135 135 135 PREVAILING WIND SPEED(KNOTS) 10.9 14.2 9.7 11.1 12.0 10.5 11.3 11.5 10.5 13.7 9.7 9.6 10.3 PREVAILING WIND PERCENT 12.1 10.7 10.5 9.6 11.3 6.7 13.7 19.4 11.7 4.0 8.8 8.1 7.5 CALMS PERCENT OF WIND 67.7 62.9 64.9 71.7 62.9 62.9 51.6 43.5 56.7 79.0 69.6 76.2 64.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 186 240 209 250 259 37 65 18 162 329 192 175 246 VECTOR WIND MAGNITUDE(KNOTS) 1.2 1.4 1.3 1.5 2.1 0.5 1.4 4.1 0.5 0.8 1.0 1.4 0.3 WIND STEADINESES (MEAN %) 32.4 30.4 35.1 50.0 51.2 12.2 24.6 62.1 11.9 34.8 32.3 58.3 7.5 WIND SPEED (MEAN KNOTS) 3.7 4.6 3.7 3.0 4.1 4.1 5.7 6.6 4.2 2.3 3.1 2.4 4.0 FASTEST WIND DIRECTION 220 240 220 270 270 60 360 330 280 330 210 210 220 FASTEST WIND SPEED (KNOTS) 31 29 23 25 29 29 23 27 29 25 27 17 31 DAY 27 21 10 27 6 14 24 17 22 11 18 20 DAYS WITH SKY CLEAR (0-2)/8 26 20 22 22 27 22 20 30 27 30 22 12 280 DAYS WITH P.CLOUDY (3-6)/8 4 5 7 8 3 7 11 1 3 1 8 14 72 DAYS WITH CLOUDY (7-8)/8 1 3 2 0 1 1 0 0 0 0 0 5 13 DAYS WITH VISIBILITY =< 2 KM 0 1 1 0 0 0 0 0 0 0 0 0 2 DURATION OF SUNSHINE HOURS 269.1 243.2 274.6 322.8 352.5 324.8 315.4 362.0 305.7 322.8 258.2 202.5 3553.6 ======================================================================================================================= 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 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 827.2 826.1 825.8 825.6 823.6 820.4 820.1 823.3 825.7 828.7 829.2 830.6 825.5 MAX. QFE PRESSURE IN HPA 831.8 832.4 833.7 832.6 828.7 826.8 825.0 828.0 831.8 833.0 834.2 835.8 835.8 DAY-HOUR 14- 6 28- 6 2- 6 1- 6 12- 6 3- 6 29- 6 14- 6 23- 6 10- 6 5- 6 18- 6 MIN. QFE PRESSURE IN HPA 821.1 820.0 816.8 820.2 817.1 816.2 815.2 819.5 821.0 824.8 823.6 825.1 815.2 DAY-HOUR 27-18 21-12 26- 0 13-12 25-15 11-12 10-12 27-12 5-15 1-12 17-12 5-12 MEAN QNH PRESSURE IN HPA 1020.3 1019.0 1018.6 1018.4 1016.0 1012.3 1011.9 1015.7 1018.6 1022.1 1022.7 1024.3 1018.3 MAX. QNH PRESSURE IN HPA 1025.8 1026.5 1028.0 1026.7 1022.1 1019.8 1017.7 1021.3 1025.8 1027.2 1028.6 1030.5 1030.5 DAY-HOUR 14- 6 28- 6 2- 6 1- 6 12- 6 3- 6 29- 6 14- 6 23- 6 10- 6 5- 6 18- 6 MIN. QNH PRESSURE IN HPA 1013.1 1011.8 1008.0 1012.0 1008.3 1007.3 1006.1 1011.2 1013.0 1017.5 1016.0 1017.8 1006.1 DAY-HOUR 27-18 21-12 26- 0 13-12 25-15 11-12 10-12 27-12 5-15 1-12 17-12 5-12 MEAN QFF PRESSURE IN HPA 1019.2 1015.8 1011.1 1006.7 1000.8 994.7 992.7 998.4 1003.4 1010.8 1016.7 1019.1 1007.4 MAX. QFF PRESSURE IN HPA 1030.9 1025.7 1023.0 1016.3 1007.5 1002.0 1001.4 1007.0 1014.4 1017.5 1025.6 1029.0 1030.9 DAY-HOUR 29- 6 13- 3 2- 3 1- 3 12- 3 3- 6 31- 3 15- 3 23- 3 11- 3 21- 3 18- 6 MIN. QFF PRESSURE IN HPA 1010.3 1004.7 1000.5 1000.5 992.0 989.6 984.6 992.4 996.0 1001.7 1008.1 1010.7 984.6 DAY-HOUR 18-12 21-12 26-12 13-12 25-15 28-15 12-12 28-12 2-12 1-12 11- 9 5-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 827.0 825.4 825.4 825.4 823.4 820.3 820.1 823.4 825.5 828.4 829.0 830.2 825.3 MAX. QFE PRESSURE IN HPA 830.1 830.0 832.0 830.6 826.8 824.3 823.3 826.6 830.0 831.3 832.2 833.2 833.2 DAY 15 10 2 5 12 3 28 15 23 11 5 18 MIN. QFE PRESSURE IN HPA 823.1 820.3 816.8 821.0 818.2 817.7 816.5 820.3 821.5 824.9 824.6 826.4 816.5 DAY 28 22 26 18 26 18 18 28 6 3 12 6 MEAN QNH PRESSURE IN HPA 1020.1 1018.2 1018.2 1018.2 1015.8 1012.1 1011.9 1015.8 1018.3 1021.7 1022.4 1023.9 1018.0 MAX. QNH PRESSURE IN HPA 1023.7 1023.6 1026.0 1024.3 1019.8 1016.9 1015.7 1019.6 1023.6 1025.2 1026.2 1027.4 1027.4 DAY 15 10 2 5 12 3 28 15 23 11 5 18 MIN. QNH PRESSURE IN HPA 1015.5 1012.1 1008.0 1013.0 1009.6 1009.0 1007.6 1012.1 1013.6 1017.6 1017.2 1019.4 1007.6 DAY 28 22 26 18 26 18 18 28 6 3 12 6 MEAN QFF PRESSURE IN HPA 1018.1 1014.1 1010.4 1006.5 1000.8 994.6 992.6 998.5 1002.8 1009.9 1015.7 1017.9 1006.8 MAX. QFF PRESSURE IN HPA 1028.5 1022.0 1019.0 1013.0 1005.6 999.9 999.8 1004.2 1012.3 1014.0 1022.3 1024.6 1028.5 DAY 30 14 2 5 12 2 30 15 23 12 21 18 MIN. QFF PRESSURE IN HPA 1010.7 1006.1 1000.8 1001.8 994.1 991.0 986.3 993.5 996.8 1002.4 1008.3 1011.5 986.3 DAY 20 22 26 13 26 12 11 28 6 1 12 12 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 827.5 826.5 826.5 826.5 824.5 821.4 821.1 824.5 826.6 829.5 829.9 830.8 826.3 MAX. QFE PRESSURE IN HPA 831.0 831.3 833.0 831.7 828.0 826.0 824.0 827.7 830.7 832.0 833.2 834.2 834.2 DAY 15 28 2 5 13 3 26 15 23 10 5 18 MIN. QFE PRESSURE IN HPA 823.8 821.3 818.1 822.3 819.0 818.5 818.0 821.6 823.0 826.1 825.4 827.0 818.0 DAY 27 22 26 10 26 18 11 28 6 1 12 5 MEAN QNH PRESSURE IN HPA 1020.7 1019.4 1019.5 1019.5 1017.1 1013.5 1013.1 1017.1 1019.6 1023.1 1023.5 1024.6 1019.2 MAX. QNH PRESSURE IN HPA 1024.8 1025.2 1027.2 1025.6 1021.3 1018.9 1016.5 1020.9 1024.5 1026.0 1027.4 1028.6 1028.6 DAY 15 28 2 5 13 3 26 15 23 10 5 18 MIN. QNH PRESSURE IN HPA 1016.3 1013.3 1009.5 1014.5 1010.6 1010.0 1009.4 1013.7 1015.3 1019.0 1018.2 1020.1 1009.4 DAY 27 22 26 10 26 18 11 28 6 1 12 5 MEAN QFF PRESSURE IN HPA 1021.2 1017.7 1013.3 1009.0 1002.5 996.3 994.7 1000.5 1005.8 1013.8 1019.6 1020.8 1009.6 MAX. QFF PRESSURE IN HPA 1030.9 1025.7 1023.0 1016.3 1007.5 1001.9 1001.4 1007.0 1014.4 1017.5 1025.6 1028.3 1030.9 DAY 29 13 2 1 12 3 31 15 23 11 21 29 MIN. QFF PRESSURE IN HPA 1013.2 1006.8 1003.8 1004.0 995.0 991.9 988.2 995.7 999.8 1004.3 1011.1 1013.1 988.2 DAY 27 21 26 13 26 29 11 28 1 1 12 6 ======================================================================================================================= 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 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 828.7 827.8 827.5 827.4 825.2 821.9 821.5 825.0 827.5 830.6 831.0 832.1 827.2 MAX. QFE PRESSURE IN HPA 831.8 832.4 833.7 832.6 828.7 826.8 825.0 828.0 831.8 833.0 834.2 835.8 835.8 DAY 14 28 2 1 12 3 29 14 23 10 5 18 MIN. QFE PRESSURE IN HPA 824.3 822.7 819.3 823.0 819.4 819.1 818.0 822.8 824.0 827.3 827.0 827.7 818.0 DAY 27 22 26 10 26 18 12 27 1 1 12 5 MEAN QNH PRESSURE IN HPA 1022.0 1021.0 1020.6 1020.5 1018.0 1014.0 1013.5 1017.7 1020.6 1024.3 1024.8 1026.1 1020.3 MAX. QNH PRESSURE IN HPA 1025.8 1026.5 1028.0 1026.7 1022.1 1019.8 1017.7 1021.3 1025.8 1027.2 1028.6 1030.5 1030.5 DAY 14 28 2 1 12 3 29 14 23 10 5 18 MIN. QNH PRESSURE IN HPA 1016.9 1015.0 1010.9 1015.3 1011.1 1010.7 1009.4 1015.1 1016.5 1020.4 1020.1 1020.9 1009.4 DAY 27 22 26 10 26 18 12 27 1 1 12 5 MEAN QFF PRESSURE IN HPA 1021.3 1018.1 1013.2 1008.3 1002.4 996.4 994.1 1000.3 1005.2 1012.7 1018.4 1021.1 1009.3 MAX. QFF PRESSURE IN HPA 1030.9 1025.7 1022.5 1014.7 1007.2 1002.0 1001.1 1006.2 1013.3 1016.5 1024.3 1029.0 1030.9 DAY 29 13 1 1 12 3 30 14 23 11 21 18 MIN. QFF PRESSURE IN HPA 1014.2 1007.7 1004.5 1003.3 994.7 992.5 988.4 996.7 999.1 1005.1 1011.1 1014.7 988.4 DAY 20 21 26 10 26 29 12 27 1 1 1 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 827.3 826.5 826.2 826.0 824.0 820.8 820.3 823.4 825.9 829.0 829.1 830.6 825.8 MAX. QFE PRESSURE IN HPA 830.5 831.0 832.0 831.5 827.5 825.3 823.7 826.1 830.0 831.4 832.3 833.6 833.6 DAY 14 28 1 1 12 3 29 14 22 10 5 9 MIN. QFE PRESSURE IN HPA 822.5 821.5 818.7 822.0 818.6 818.2 817.2 821.0 822.5 825.9 824.8 825.8 817.2 DAY 27 21 26 10 26 18 10 28 1 1 17 5 MEAN QNH PRESSURE IN HPA 1020.4 1019.5 1019.1 1018.9 1016.5 1012.7 1012.1 1015.8 1018.8 1022.4 1022.6 1024.4 1018.6 MAX. QNH PRESSURE IN HPA 1024.2 1024.8 1026.0 1025.4 1020.7 1018.1 1016.2 1019.0 1023.6 1025.3 1026.4 1027.9 1027.9 DAY 14 28 1 1 12 3 29 14 22 10 5 9 MIN. QNH PRESSURE IN HPA 1014.7 1013.6 1010.2 1014.1 1010.1 1009.6 1008.5 1013.0 1014.7 1018.8 1017.5 1018.7 1008.5 DAY 27 21 26 10 26 18 10 28 1 1 17 5 MEAN QFF PRESSURE IN HPA 1018.4 1015.4 1010.9 1006.6 1000.6 994.7 992.4 997.8 1002.7 1009.9 1015.4 1018.3 1006.9 MAX. QFF PRESSURE IN HPA 1028.2 1021.8 1019.3 1013.2 1005.9 1000.0 1000.4 1002.7 1010.7 1013.5 1022.3 1023.7 1028.2 DAY 29 9 1 1 1 2 29 14 23 28 21 18 MIN. QFF PRESSURE IN HPA 1010.4 1006.1 1002.7 1001.5 993.3 991.1 986.8 994.3 997.0 1002.5 1008.1 1011.1 986.8 DAY 27 21 26 13 26 18 10 28 1 1 11 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 825.9 824.9 824.5 824.1 822.4 819.2 818.6 821.7 824.4 827.4 827.9 829.5 824.2 MAX. QFE PRESSURE IN HPA 828.9 829.6 830.0 829.4 825.5 823.7 822.0 825.1 829.3 830.4 831.0 832.1 832.1 DAY 15 28 1 4 12 3 31 14 22 10 5 8 MIN. QFE PRESSURE IN HPA 821.9 820.0 817.4 820.2 817.3 816.2 815.2 819.5 821.4 824.8 823.6 825.1 815.2 DAY 27 21 26 13 25 11 10 27 6 1 17 5 MEAN QNH PRESSURE IN HPA 1018.8 1017.6 1017.1 1016.6 1014.7 1010.8 1010.1 1013.8 1017.0 1020.5 1021.1 1023.0 1016.8 MAX. QNH PRESSURE IN HPA 1022.3 1023.2 1023.6 1022.9 1018.3 1016.2 1014.1 1017.8 1022.8 1024.1 1024.8 1026.1 1026.1 DAY 15 28 1 4 12 3 31 14 22 10 5 8 MIN. QNH PRESSURE IN HPA 1014.0 1011.8 1008.7 1012.0 1008.6 1007.3 1006.1 1011.2 1013.4 1017.5 1016.0 1017.8 1006.1 DAY 27 21 26 13 25 11 10 27 6 1 17 5 MEAN QFF PRESSURE IN HPA 1016.8 1013.4 1009.2 1004.8 999.6 993.3 990.9 996.4 1001.6 1008.6 1014.4 1017.0 1005.5 MAX. QFF PRESSURE IN HPA 1026.0 1019.7 1017.4 1010.9 1004.6 999.6 998.1 1002.8 1010.1 1011.9 1020.2 1021.7 1026.0 DAY 29 13 1 4 6 2 29 14 22 28 21 18 MIN. QFF PRESSURE IN HPA 1010.3 1004.7 1000.5 1000.5 992.1 989.7 984.6 992.4 996.0 1001.7 1008.1 1011.0 984.6 DAY 18 21 26 13 25 28 12 28 2 1 11 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 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 826.5 825.4 824.6 824.2 822.4 819.2 818.8 821.9 824.5 827.7 828.5 830.0 824.5 MAX. QFE PRESSURE IN HPA 830.1 830.0 830.3 829.4 825.5 823.2 822.0 825.5 829.9 831.4 831.5 833.0 833.0 DAY 15 9 1 4 12 2 31 14 22 10 5 8 MIN. QFE PRESSURE IN HPA 821.9 820.5 817.9 820.2 817.1 816.4 815.2 819.5 821.0 824.8 824.1 826.4 815.2 DAY 27 21 26 13 25 11 10 27 5 1 17 5 MEAN QNH PRESSURE IN HPA 1019.4 1018.2 1017.3 1016.8 1014.6 1010.8 1010.3 1014.0 1017.2 1020.9 1021.8 1023.7 1017.1 MAX. QNH PRESSURE IN HPA 1023.7 1023.6 1024.0 1022.9 1018.3 1015.6 1014.1 1018.3 1023.5 1025.3 1025.4 1027.2 1027.2 DAY 15 9 1 4 12 2 31 14 22 10 5 8 MIN. QNH PRESSURE IN HPA 1014.0 1012.4 1009.3 1012.0 1008.3 1007.5 1006.1 1011.2 1013.0 1017.5 1016.6 1019.4 1006.1 DAY 27 21 26 13 25 11 10 27 5 1 17 5 MEAN QFF PRESSURE IN HPA 1019.9 1016.3 1010.9 1006.1 999.9 993.5 991.9 997.5 1003.4 1011.5 1017.9 1019.8 1007.4 MAX. QFF PRESSURE IN HPA 1029.1 1023.3 1019.3 1012.5 1004.7 998.7 999.2 1004.1 1012.4 1015.8 1023.6 1025.8 1029.1 DAY 29 13 1 1 1 3 31 14 22 10 20 28 MIN. QFF PRESSURE IN HPA 1011.6 1006.0 1003.7 1000.7 992.0 989.6 985.2 993.3 997.8 1002.6 1010.4 1012.9 985.2 DAY 27 21 26 13 25 28 10 27 1 1 17 5 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 827.3 826.3 825.8 825.6 823.5 820.3 820.2 823.3 825.7 828.7 829.4 830.9 825.6 MAX. QFE PRESSURE IN HPA 830.6 831.0 831.6 831.1 827.0 824.7 823.3 826.6 830.4 831.9 832.4 835.0 835.0 DAY 15 9 1 4 12 2 28 14 22 10 5 8 MIN. QFE PRESSURE IN HPA 821.1 821.0 819.0 821.4 818.2 817.7 815.8 820.6 821.5 825.5 825.4 826.4 815.8 DAY 27 21 25 13 25 11 10 27 5 2 11 5 MEAN QNH PRESSURE IN HPA 1020.4 1019.3 1018.6 1018.4 1015.9 1012.1 1012.0 1015.6 1018.5 1022.1 1022.9 1024.7 1018.4 MAX. QNH PRESSURE IN HPA 1024.3 1024.8 1025.5 1024.9 1020.1 1017.3 1015.7 1019.6 1024.1 1025.9 1026.5 1029.6 1029.6 DAY 15 9 1 4 12 2 28 14 22 10 5 8 MIN. QNH PRESSURE IN HPA 1013.1 1013.0 1010.6 1013.4 1009.6 1009.0 1006.8 1012.5 1013.6 1018.3 1018.2 1019.4 1006.8 DAY 27 21 25 13 25 11 10 27 5 2 11 5 MEAN QFF PRESSURE IN HPA 1019.7 1016.2 1011.0 1006.2 1000.3 994.6 992.6 998.3 1003.2 1010.6 1016.7 1019.7 1007.4 MAX. QFF PRESSURE IN HPA 1030.3 1024.0 1019.8 1012.5 1005.1 999.6 1000.0 1004.4 1011.1 1014.9 1022.7 1025.4 1030.3 DAY 29 13 1 4 11 3 31 14 22 10 20 17 MIN. QFF PRESSURE IN HPA 1010.8 1006.6 1002.5 1001.7 993.0 990.6 985.7 994.8 997.8 1003.5 1010.0 1011.8 985.7 DAY 27 21 25 13 25 11 10 27 1 2 11 5 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 827.2 826.2 825.9 825.7 823.6 820.6 820.5 823.5 825.8 828.7 829.4 830.6 825.6 MAX. QFE PRESSURE IN HPA 830.4 831.0 832.0 831.1 827.0 824.3 823.5 826.6 830.4 831.9 832.2 833.9 833.9 DAY 15 9 1 4 12 2 27 14 22 10 4 17 MIN. QFE PRESSURE IN HPA 821.8 821.0 818.5 821.7 818.2 818.0 817.2 821.0 822.0 825.5 825.4 826.4 817.2 DAY 27 21 25 17 25 17 17 27 5 2 11 5 MEAN QNH PRESSURE IN HPA 1020.4 1019.2 1018.7 1018.5 1016.0 1012.4 1012.4 1016.0 1018.6 1022.1 1022.9 1024.4 1018.5 MAX. QNH PRESSURE IN HPA 1024.1 1024.8 1026.0 1024.9 1020.1 1016.9 1015.9 1019.6 1024.1 1025.9 1026.2 1028.3 1028.3 DAY 15 9 1 4 12 2 27 14 22 10 4 17 MIN. QNH PRESSURE IN HPA 1013.9 1013.0 1010.0 1013.8 1009.6 1009.4 1008.5 1013.0 1014.1 1018.3 1018.2 1019.4 1008.5 DAY 27 21 25 17 25 17 17 27 5 2 11 5 MEAN QFF PRESSURE IN HPA 1018.4 1014.9 1010.4 1006.2 1000.1 994.5 992.8 997.9 1002.5 1009.8 1015.8 1018.4 1006.8 MAX. QFF PRESSURE IN HPA 1029.2 1023.0 1018.2 1013.0 1005.1 999.2 999.9 1003.3 1011.4 1014.0 1022.6 1025.3 1029.2 DAY 29 12 1 4 12 1 28 14 22 10 20 17 MIN. QFF PRESSURE IN HPA 1011.7 1006.2 1001.3 1002.0 992.6 990.7 987.3 994.5 997.0 1003.2 1008.1 1010.7 987.3 DAY 19 21 25 13 25 6 10 27 5 2 11 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 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.7 8.4 13.3 17.6 23.9 27.6 30.0 29.2 25.6 19.3 11.7 7.2 18.3 MINIMUN AIR TEMPERATURE (C) -0.7 1.3 5.9 9.8 13.5 17.6 21.7 20.5 16.4 9.8 4.1 0.4 10.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 3 22 17 2 0 0 0 44 DAYS WITH MINIMUM TEMP. <=-4 10 6 0 0 0 0 0 0 0 0 0 10 26 DAYS WITH FREEZING MIN.<= 0 20 14 3 0 0 0 0 0 0 0 7 16 60 TEMPERATURE RECORDS LOWEST(C) -10.0 -8.0 -0.6 4.6 7.6 13.2 16.0 15.4 11.0 5.0 -2.8 -10.0 -10.0 DAY 27 6 12 7 7 8 27 31 30 29 28 23 MAXIMUM AIR TEMPERATURE (C) 12.5 15.5 20.5 24.7 31.7 35.3 36.8 36.5 33.3 27.5 19.4 14.1 25.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 5 25 30 31 31 28 6 0 0 156 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.6 20.6 25.0 32.0 34.5 37.0 39.6 38.0 36.0 30.8 24.2 18.0 39.6 DAY 1 13 14 29 31 30 19 9 1 6 1 1 DIF. BETWEEN (MAX.-MIN.) (C) 13.2 14.2 14.6 14.9 18.2 17.7 15.1 16.0 16.9 17.7 15.3 13.7 15.7 MEAN DAILY TEMP. (MDT) (C) 5.9 8.4 13.2 17.2 22.6 26.4 29.3 28.5 24.8 18.6 11.7 7.3 17.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 7.3 60.3 163.5 256.2 231.6 116.3 2.9 0.0 0.0 838.1 HEATING DEG. DAYS(BASE 18 0C) 375.4 268.9 148.4 55.4 0.0 0.0 0.0 0.0 0.0 22.1 188.4 333.0 1391.6 DEWPOINT (MEAN C) -3.8 -3.2 -2.1 1.5 -0.9 0.2 5.5 7.4 3.6 0.5 -0.9 -2.7 0.4 MIXING RATIO (G/KG) 3.77 3.94 4.30 5.38 4.47 4.83 7.16 8.08 6.38 4.95 4.49 4.10 5.15 VAPOUR PRESSURE (HPA) 4.98 5.21 5.67 7.07 5.87 6.34 9.34 10.53 8.38 6.55 5.94 5.42 6.77 SATURATION DEF. (HPA) 4.73 6.54 10.38 14.22 25.46 32.25 34.49 31.33 25.95 17.25 8.70 5.46 18.06 RELATIVE HUMIDITY (MEAN %) 55 48 40 38 21 18 23 27 26 30 44 53 35 RELATIVE HUMIDITY (MAX. %) 79 72 66 60 33 28 33 38 40 45 62 75 53 RELATIVE HUMIDITY (MIN. %) 33 29 20 22 12 11 16 18 17 20 29 32 22 RELATIVE HUMIDITY (MEAN% 03UTC) 74 67 60 56 30 26 32 37 37 44 60 72 50 RELATIVE HUMIDITY (MEAN% 09UTC) 40 34 26 25 14 13 17 19 20 23 33 40 25 RELATIVE HUMIDITY (MEAN% 15UTC) 46 38 29 29 15 13 18 22 20 26 38 43 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 17.6 18.0 39.0 13.2 0.0 0.0 0.0 1.0 0.0 0.0 0.4 4.7 93.9 DAYS WITH PRECIPITATION >=10 0 1 2 0 0 0 0 0 0 0 0 0 3 DAYS WITH PRECIPITATION >= 5 2 1 3 2 0 0 0 0 0 0 0 0 8 DAYS WITH PRECIPITATION >= 1 3 3 5 3 0 0 0 1 0 0 0 1 16 DAYS WITH PRECIPITATION 4 3 5 3 0 0 0 1 0 0 1 3 20 GREATEST DAILY PRECIPITATION 9.0 15.0 13.0 7.2 0.0 0.0 0.0 1.0 0.0 0.0 0.4 3.5 15.0 DAY 12 15 28 12 ** ** ** 30 ** ** 6 2 DAY WITH THUNDER STORM 0 0 0 1 0 0 0 0 0 0 1 0 2 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 1 0 1 1 0 0 0 0 0 0 0 0 3 WIND DIRECTION (PREVAILING) 135 135 135 225 225 270 135 135 45 270 135 135 135 PREVAILING WIND SPEED(KNOTS) 11.0 9.6 10.8 15.1 13.2 10.5 10.8 10.0 9.7 9.1 8.8 9.5 9.9 PREVAILING WIND PERCENT 14.9 10.7 12.1 12.5 10.9 7.1 8.5 11.7 16.3 4.4 11.7 12.1 8.8 CALMS PERCENT OF WIND 54.8 62.9 56.5 57.1 61.7 69.2 53.2 46.8 43.8 75.0 65.4 66.1 59.3 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 188 209 193 225 263 283 51 55 25 340 209 188 218 VECTOR WIND MAGNITUDE(KNOTS) 1.6 1.1 1.4 2.5 2.5 0.7 0.7 1.7 2.0 0.1 0.8 1.8 0.5 WIND STEADINESES (MEAN %) 32.7 26.2 28.6 48.1 56.8 21.2 13.7 28.3 39.2 4.0 22.9 51.4 11.4 WIND SPEED (MEAN KNOTS) 4.9 4.2 4.9 5.2 4.4 3.3 5.1 6.0 5.1 2.5 3.5 3.5 4.4 FASTEST WIND DIRECTION 130 210 240 220 280 150 30 120 360 20 230 240 220 FASTEST WIND SPEED (KNOTS) 23 29 31 33 27 21 23 25 21 17 21 19 33 DAY 11 20 21 21 7 27 28 28 8 2 2 11 DAYS WITH SKY CLEAR (0-2)/8 19 16 19 18 29 27 21 27 27 27 20 17 267 DAYS WITH P.CLOUDY (3-6)/8 11 6 9 9 1 3 10 4 3 4 10 13 83 DAYS WITH CLOUDY (7-8)/8 1 6 3 3 1 0 0 0 0 0 0 1 15 DAYS WITH VISIBILITY =< 2 KM 0 0 0 0 0 0 0 0 0 0 0 0 0 DURATION OF SUNSHINE HOURS 241.5 214.5 277.8 285.1 354.7 354.9 328.8 337.3 327.2 315.2 249.6 231.2 3517.8 ======================================================================================================================= 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 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 827.5 827.9 826.7 825.1 824.6 822.2 821.7 821.7 826.4 829.0 829.1 827.6 825.8 MAX. QFE PRESSURE IN HPA 833.5 834.7 835.0 832.4 830.3 827.2 825.6 826.9 831.5 833.8 834.8 834.6 835.0 DAY-HOUR 26- 6 6- 6 11- 6 2- 6 10- 6 5- 6 31- 6 31- 6 21- 6 10- 6 18- 6 14- 6 MIN. QFE PRESSURE IN HPA 821.0 822.0 822.2 816.7 820.5 816.5 818.1 817.7 821.8 825.8 824.8 820.6 816.5 DAY-HOUR 22-12 20-12 22-12 4- 0 13-12 20-12 26-15 17-12 10-12 21-12 6-12 22-12 MEAN QNH PRESSURE IN HPA 1020.6 1021.1 1019.7 1017.8 1017.2 1014.3 1013.7 1013.8 1019.3 1022.4 1022.6 1020.8 1018.6 MAX. QNH PRESSURE IN HPA 1027.8 1029.2 1029.6 1026.5 1024.0 1020.3 1018.4 1020.0 1025.4 1028.1 1029.3 1029.1 1029.6 DAY-HOUR 26- 6 6- 6 11- 6 2- 6 10- 6 5- 6 31- 6 31- 6 21- 6 10- 6 18- 6 14- 6 MIN. QNH PRESSURE IN HPA 1013.0 1014.1 1014.4 1007.9 1012.4 1007.6 1009.5 1009.0 1013.9 1018.7 1017.5 1012.5 1007.6 DAY-HOUR 22-12 20-12 22-12 4- 0 13-12 20-12 26-15 17-12 10-12 21-12 6-12 22-12 MEAN QFF PRESSURE IN HPA 1018.9 1017.4 1012.4 1007.4 1002.6 997.3 994.9 995.4 1003.4 1010.9 1016.4 1017.9 1007.9 MAX. QFF PRESSURE IN HPA 1030.3 1031.4 1026.1 1017.1 1009.5 1004.5 1003.1 1004.3 1012.4 1018.1 1025.7 1029.5 1031.4 DAY-HOUR 27- 3 6- 6 12- 3 1- 3 10- 3 5- 6 31- 3 31- 3 30- 3 31- 3 18- 6 30- 6 MIN. QFF PRESSURE IN HPA 1008.5 1008.3 1004.5 996.6 997.0 990.8 990.5 989.2 996.7 1005.0 1007.5 1006.7 989.2 DAY-HOUR 11-21 25-12 21- 9 4- 0 21-12 18-15 23-12 9-12 7-12 15- 0 7- 0 22-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 827.2 827.5 826.2 824.8 824.2 821.9 821.3 821.6 826.2 828.6 828.9 827.3 825.5 MAX. QFE PRESSURE IN HPA 831.8 832.1 832.7 830.0 827.9 825.3 823.6 825.1 829.5 831.7 832.9 831.8 832.9 DAY 27 2 12 2 10 6 31 30 21 10 19 3 MIN. QFE PRESSURE IN HPA 822.2 824.0 823.0 816.7 821.8 817.2 818.3 818.5 823.2 826.3 825.0 821.3 816.7 DAY 22 21 22 4 6 21 27 17 18 15 7 25 MEAN QNH PRESSURE IN HPA 1020.4 1020.7 1019.1 1017.4 1016.7 1014.0 1013.3 1013.7 1019.1 1022.0 1022.3 1020.4 1018.3 MAX. QNH PRESSURE IN HPA 1025.8 1026.1 1026.8 1023.6 1021.1 1018.1 1016.0 1017.8 1023.0 1025.6 1027.1 1025.8 1027.1 DAY 27 2 12 2 10 6 31 30 21 10 19 3 MIN. QNH PRESSURE IN HPA 1014.4 1016.5 1015.3 1007.9 1013.9 1008.5 1009.8 1010.0 1015.6 1019.2 1017.7 1013.3 1007.9 DAY 22 21 22 4 6 21 27 17 18 15 7 25 MEAN QFF PRESSURE IN HPA 1017.9 1016.5 1011.2 1006.9 1002.5 997.3 994.4 995.2 1003.0 1010.0 1015.3 1016.8 1007.3 MAX. QFF PRESSURE IN HPA 1028.0 1027.8 1022.8 1013.5 1007.8 1002.4 1000.2 1001.4 1009.0 1014.0 1022.2 1026.7 1028.0 DAY 27 2 12 1 10 5 31 2 30 26 19 31 MIN. QFF PRESSURE IN HPA 1009.8 1008.5 1005.7 996.6 997.5 991.7 991.5 989.7 998.1 1005.0 1007.5 1007.0 989.7 DAY 12 25 22 4 21 21 23 9 10 15 7 22 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 827.8 828.2 827.2 825.6 825.4 823.1 822.6 822.7 827.3 829.7 829.7 827.9 826.4 MAX. QFE PRESSURE IN HPA 831.6 833.1 833.8 830.6 829.4 826.6 825.4 826.2 830.7 833.0 833.3 832.2 833.8 DAY 26 2 11 1 10 6 31 30 21 10 19 3 MIN. QFE PRESSURE IN HPA 822.8 824.7 823.8 816.7 822.7 818.2 820.3 819.6 824.3 827.6 825.9 821.7 816.7 DAY 22 21 22 4 13 21 27 17 18 15 7 25 MEAN QNH PRESSURE IN HPA 1021.0 1021.5 1020.3 1018.4 1018.2 1015.5 1014.9 1015.0 1020.4 1023.3 1023.3 1021.2 1019.4 MAX. QNH PRESSURE IN HPA 1025.5 1027.3 1028.1 1024.3 1022.9 1019.6 1018.2 1019.1 1024.5 1027.2 1027.5 1026.2 1028.1 DAY 26 2 11 1 10 6 31 30 21 10 19 3 MIN. QNH PRESSURE IN HPA 1015.1 1017.3 1016.3 1007.9 1015.0 1009.6 1012.1 1011.3 1016.9 1020.8 1018.8 1013.8 1007.9 DAY 22 21 22 4 13 21 27 17 18 15 7 25 MEAN QFF PRESSURE IN HPA 1020.5 1019.1 1014.2 1008.9 1004.3 998.9 996.7 997.6 1005.9 1013.9 1018.8 1019.7 1009.9 MAX. QFF PRESSURE IN HPA 1030.3 1031.2 1026.1 1017.1 1009.5 1003.2 1003.1 1004.3 1012.4 1018.1 1025.4 1028.9 1031.2 DAY 27 6 12 1 10 5 31 31 30 31 30 30 MIN. QFF PRESSURE IN HPA 1011.5 1010.6 1008.8 998.8 999.9 993.5 993.5 992.4 1000.0 1009.4 1010.2 1009.0 992.4 DAY 12 25 19 4 13 21 22 9 6 15 7 22 ======================================================================================================================= 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 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 829.0 829.5 828.4 826.6 826.0 823.7 823.2 823.3 828.1 830.8 830.9 829.3 827.4 MAX. QFE PRESSURE IN HPA 833.5 834.7 835.0 832.4 830.3 827.2 825.6 826.9 831.5 833.8 834.8 834.6 835.0 DAY 26 6 11 2 10 5 31 31 21 10 18 14 MIN. QFE PRESSURE IN HPA 823.2 825.8 825.4 817.2 822.7 819.0 820.8 820.3 824.5 828.8 827.5 822.7 817.2 DAY 22 21 22 4 13 21 27 17 10 15 7 22 MEAN QNH PRESSURE IN HPA 1022.5 1023.1 1021.7 1019.6 1018.9 1016.2 1015.5 1015.7 1021.3 1024.5 1024.7 1022.8 1020.5 MAX. QNH PRESSURE IN HPA 1027.8 1029.2 1029.6 1026.5 1024.0 1020.3 1018.4 1020.0 1025.4 1028.1 1029.3 1029.1 1029.6 DAY 26 6 11 2 10 5 31 31 21 10 18 14 MIN. QNH PRESSURE IN HPA 1015.6 1018.7 1018.2 1008.5 1015.0 1010.6 1012.7 1012.1 1017.1 1022.2 1020.7 1015.0 1008.5 DAY 22 21 22 4 13 21 27 17 10 15 7 22 MEAN QFF PRESSURE IN HPA 1021.0 1019.7 1014.6 1009.0 1003.9 998.8 996.4 997.1 1005.4 1012.6 1018.6 1019.9 1009.7 MAX. QFF PRESSURE IN HPA 1030.1 1031.4 1026.0 1016.6 1009.0 1004.5 1002.3 1003.0 1011.9 1015.8 1025.7 1029.5 1031.4 DAY 26 6 12 1 10 5 31 31 30 11 18 30 MIN. QFF PRESSURE IN HPA 1012.9 1012.5 1008.8 1001.4 999.8 993.1 993.1 993.1 1000.2 1008.8 1012.6 1009.2 993.1 DAY 12 26 21 4 13 20 22 9 10 14 13 22 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 827.5 828.1 827.0 825.6 825.1 822.7 822.0 821.9 826.6 829.2 829.1 827.5 826.0 MAX. QFE PRESSURE IN HPA 831.7 833.0 833.4 831.5 829.0 826.2 824.0 825.4 829.9 832.1 833.3 832.7 833.4 DAY 26 2 11 1 10 5 3 31 21 10 18 14 MIN. QFE PRESSURE IN HPA 822.0 824.6 823.0 818.4 821.7 818.0 819.8 819.1 823.0 827.1 826.2 821.1 818.0 DAY 22 4 21 4 13 20 22 17 10 21 26 22 MEAN QNH PRESSURE IN HPA 1020.6 1021.4 1020.0 1018.4 1017.8 1015.0 1014.2 1014.1 1019.6 1022.6 1022.5 1020.6 1018.9 MAX. QNH PRESSURE IN HPA 1025.6 1027.2 1027.7 1025.4 1022.4 1019.1 1016.5 1018.2 1023.5 1026.1 1027.5 1026.8 1027.7 DAY 26 2 11 1 10 5 3 31 21 10 18 14 MIN. QNH PRESSURE IN HPA 1014.1 1017.2 1015.3 1009.9 1013.8 1009.4 1011.5 1010.7 1015.3 1020.2 1019.1 1013.1 1009.4 DAY 22 4 21 4 13 20 22 17 10 21 26 22 MEAN QFF PRESSURE IN HPA 1018.2 1016.9 1012.0 1007.6 1002.8 997.4 994.8 995.0 1002.6 1009.9 1015.3 1016.9 1007.4 MAX. QFF PRESSURE IN HPA 1026.6 1027.0 1022.3 1016.2 1008.5 1002.7 1000.3 1000.1 1008.0 1013.6 1022.1 1026.6 1027.0 DAY 26 2 11 1 9 5 31 31 30 31 19 30 MIN. QFF PRESSURE IN HPA 1011.1 1010.5 1004.5 1000.4 998.2 991.5 991.2 991.0 997.2 1005.9 1009.4 1007.1 991.0 DAY 22 28 21 21 21 20 22 9 10 15 13 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 826.3 826.4 825.3 823.9 823.5 821.1 820.6 820.3 824.9 827.6 827.6 826.2 824.5 MAX. QFE PRESSURE IN HPA 831.0 831.1 831.0 829.5 826.8 824.8 823.0 823.5 828.4 830.6 832.0 831.3 832.0 DAY 26 2 11 1 10 5 29 29 23 10 18 14 MIN. QFE PRESSURE IN HPA 821.0 822.0 822.2 818.0 820.5 816.5 818.6 817.7 821.8 825.8 824.8 820.6 816.5 DAY 22 20 22 4 13 20 7 17 10 21 6 22 MEAN QNH PRESSURE IN HPA 1019.3 1019.3 1018.1 1016.4 1015.9 1013.1 1012.4 1012.1 1017.6 1020.8 1020.8 1019.2 1017.1 MAX. QNH PRESSURE IN HPA 1024.8 1024.9 1024.8 1023.0 1019.8 1017.5 1015.3 1015.9 1021.7 1024.3 1026.0 1025.2 1026.0 DAY 26 2 11 1 10 5 29 29 23 10 18 14 MIN. QNH PRESSURE IN HPA 1013.0 1014.1 1014.4 1009.4 1012.4 1007.6 1010.1 1009.0 1013.9 1018.7 1017.5 1012.5 1007.6 DAY 22 20 22 4 13 20 7 17 10 21 6 22 MEAN QFF PRESSURE IN HPA 1016.8 1015.1 1010.2 1005.8 1001.6 996.3 993.5 993.4 1001.5 1008.7 1013.8 1015.5 1006.0 MAX. QFF PRESSURE IN HPA 1026.4 1025.2 1019.4 1014.0 1006.5 1001.8 999.3 998.1 1008.1 1012.9 1020.2 1026.0 1026.4 DAY 26 2 11 2 9 5 31 31 29 26 18 30 MIN. QFF PRESSURE IN HPA 1009.7 1008.3 1004.5 998.5 997.0 991.0 990.5 989.2 996.7 1005.1 1008.0 1006.7 989.2 DAY 22 25 17 3 21 20 23 9 7 15 13 22 ======================================================================================================================= 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 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 827.0 826.9 825.8 824.2 823.4 820.9 820.5 820.3 825.1 828.0 828.3 826.9 824.8 MAX. QFE PRESSURE IN HPA 831.8 831.3 831.5 830.0 826.8 824.6 823.3 823.8 828.6 831.5 832.5 832.1 832.5 DAY 26 1 11 1 10 5 29 29 23 10 18 14 MIN. QFE PRESSURE IN HPA 822.0 822.5 822.2 819.0 821.0 816.5 818.1 817.7 822.2 826.2 825.2 821.1 816.5 DAY 22 20 22 4 12 20 26 17 9 21 6 22 MEAN QNH PRESSURE IN HPA 1020.0 1020.0 1018.6 1016.7 1015.8 1012.9 1012.3 1012.2 1017.8 1021.2 1021.7 1020.0 1017.4 MAX. QNH PRESSURE IN HPA 1025.8 1025.2 1025.4 1023.6 1019.8 1017.2 1015.7 1016.3 1022.0 1025.4 1026.6 1026.1 1026.6 DAY 26 1 11 1 10 5 29 29 23 10 18 14 MIN. QNH PRESSURE IN HPA 1014.1 1014.7 1014.4 1010.6 1013.0 1007.6 1009.5 1009.0 1014.4 1019.1 1017.9 1013.1 1007.6 DAY 22 20 22 4 12 20 26 17 9 21 6 22 MEAN QFF PRESSURE IN HPA 1019.5 1017.4 1012.5 1007.1 1001.8 996.2 994.2 994.7 1003.2 1011.7 1017.1 1018.5 1007.8 MAX. QFF PRESSURE IN HPA 1029.5 1028.2 1022.0 1015.9 1006.8 1000.5 1000.2 1000.5 1010.4 1016.0 1022.7 1029.5 1029.5 DAY 26 6 11 1 9 28 31 31 29 31 18 30 MIN. QFF PRESSURE IN HPA 1010.7 1009.3 1007.0 1001.3 997.9 990.8 991.3 990.5 998.1 1007.5 1010.6 1009.1 990.5 DAY 11 25 21 21 20 18 23 9 5 15 6 22 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 827.7 828.1 827.1 825.2 824.5 821.9 821.5 821.8 826.4 829.0 829.3 827.9 825.9 MAX. QFE PRESSURE IN HPA 832.3 832.4 833.4 830.8 828.0 825.3 824.5 825.8 830.0 832.1 833.4 832.4 833.4 DAY 26 1 11 1 9 5 30 29 23 10 18 30 MIN. QFE PRESSURE IN HPA 823.2 824.2 823.0 820.2 821.8 817.6 818.5 818.5 823.0 826.9 826.4 823.1 817.6 DAY 22 20 22 3 13 20 26 8 9 28 6 24 MEAN QNH PRESSURE IN HPA 1020.9 1021.4 1020.1 1018.0 1017.1 1014.0 1013.6 1013.9 1019.3 1022.4 1022.8 1021.1 1018.7 MAX. QNH PRESSURE IN HPA 1026.4 1026.5 1027.7 1024.6 1021.3 1018.1 1017.1 1018.7 1023.6 1026.1 1027.7 1026.5 1027.7 DAY 26 1 11 1 9 5 30 29 23 10 18 30 MIN. QNH PRESSURE IN HPA 1015.6 1016.8 1015.3 1012.0 1013.9 1008.9 1010.0 1010.0 1015.3 1020.0 1019.4 1015.5 1008.9 DAY 22 20 22 3 13 20 26 8 9 28 6 24 MEAN QFF PRESSURE IN HPA 1019.4 1017.9 1013.0 1007.3 1002.1 996.7 994.6 995.5 1003.6 1010.6 1016.8 1018.3 1008.0 MAX. QFF PRESSURE IN HPA 1029.1 1029.5 1025.3 1013.9 1006.5 1001.8 1000.4 1000.6 1010.0 1015.0 1024.0 1029.3 1029.5 DAY 26 5 11 1 9 5 30 30 30 31 18 30 MIN. QFF PRESSURE IN HPA 1009.9 1011.4 1008.0 1000.7 997.9 991.1 991.5 991.1 998.5 1007.2 1010.1 1010.6 991.1 DAY 11 25 22 21 20 20 22 7 5 15 6 21 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 827.5 828.1 827.0 825.2 824.6 822.1 821.8 822.1 826.5 829.1 829.3 827.7 825.9 MAX. QFE PRESSURE IN HPA 832.3 832.4 833.2 830.8 828.7 825.3 824.5 825.8 829.6 832.1 833.4 831.8 833.4 DAY 26 6 11 1 9 5 30 29 23 10 18 2 MIN. QFE PRESSURE IN HPA 822.8 824.7 823.2 818.9 822.3 818.0 819.1 819.1 823.2 826.9 825.2 822.0 818.0 DAY 21 20 22 3 20 21 26 8 9 28 6 24 MEAN QNH PRESSURE IN HPA 1020.6 1021.4 1020.1 1017.9 1017.2 1014.2 1013.9 1014.3 1019.5 1022.5 1022.8 1020.9 1018.8 MAX. QNH PRESSURE IN HPA 1026.4 1026.5 1027.4 1024.6 1022.1 1018.1 1017.1 1018.7 1023.2 1026.1 1027.7 1025.8 1027.7 DAY 26 6 11 1 9 5 30 29 23 10 18 2 MIN. QNH PRESSURE IN HPA 1015.1 1017.3 1015.6 1010.5 1014.5 1009.4 1010.7 1010.7 1015.6 1020.0 1017.9 1014.1 1009.4 DAY 21 20 22 3 20 21 26 8 9 28 6 24 MEAN QFF PRESSURE IN HPA 1018.2 1016.8 1011.9 1007.0 1002.2 996.7 994.6 995.2 1002.6 1009.9 1015.8 1017.3 1007.3 MAX. QFF PRESSURE IN HPA 1028.7 1028.3 1023.1 1014.1 1008.0 1001.4 1000.4 1000.5 1009.3 1013.9 1022.3 1027.3 1028.7 DAY 26 5 11 1 9 3 30 1 30 31 18 30 MIN. QFF PRESSURE IN HPA 1008.5 1010.1 1005.3 999.2 997.5 991.8 991.5 990.3 997.4 1005.3 1008.2 1007.9 990.3 DAY 11 25 21 3 20 18 22 8 9 14 6 21 ======================================================================================================================= 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 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.0 10.1 12.5 18.9 22.5 28.9 30.5 28.4 24.9 19.0 11.4 7.4 18.4 MINIMUN AIR TEMPERATURE (C) -1.4 3.7 6.1 11.0 13.7 20.1 23.0 19.9 15.9 9.7 2.9 1.2 10.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 11 27 10 1 0 0 0 49 DAYS WITH MINIMUM TEMP. <=-4 11 2 2 0 0 0 0 0 0 0 3 5 23 DAYS WITH FREEZING MIN.<= 0 20 9 4 0 0 0 0 0 0 0 10 15 58 TEMPERATURE RECORDS LOWEST(C) -9.0 -7.0 -5.0 5.4 7.6 16.0 19.0 16.4 12.4 6.0 -5.0 -10.2 -10.2 DAY 2 1 2 15 1 6 3 15 4 25 27 14 MAXIMUM AIR TEMPERATURE (C) 13.4 16.6 19.2 26.1 29.6 36.1 38.0 35.7 32.4 27.2 19.5 14.4 25.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 4 14 30 31 31 27 4 0 0 141 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.8 20.2 24.6 30.0 32.8 38.0 39.6 38.2 34.0 30.4 27.0 20.0 39.6 DAY 13 23 12 10 18 25 10 1 7 2 1 19 DIF. BETWEEN (MAX.-MIN.) (C) 14.8 12.9 13.1 15.1 15.9 16.0 15.0 15.8 16.5 17.5 16.6 13.2 15.2 MEAN DAILY TEMP. (MDT) (C) 6.0 10.2 12.6 18.6 21.7 28.1 30.5 27.8 24.2 18.4 11.2 7.8 18.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 6.9 36.9 212.8 293.9 211.0 95.5 2.2 0.0 0.0 859.2 HEATING DEG. DAYS(BASE 18 0C) 371.9 218.9 166.9 24.9 2.2 0.0 0.0 0.0 0.0 14.4 205.4 315.9 1320.4 DEWPOINT (MEAN C) -4.6 -1.8 -0.6 1.9 0.3 4.2 9.8 4.8 2.5 -0.6 -4.6 -2.4 0.7 MIXING RATIO (G/KG) 3.50 4.38 4.83 5.54 4.88 6.37 9.63 6.93 5.73 4.52 3.46 4.16 5.33 VAPOUR PRESSURE (HPA) 4.62 5.76 6.36 7.29 6.42 8.33 12.49 9.05 7.52 5.98 4.58 5.51 6.99 SATURATION DEF. (HPA) 5.35 7.15 9.03 15.66 22.02 33.17 32.66 30.94 25.27 17.22 9.93 5.53 17.83 RELATIVE HUMIDITY (MEAN %) 52 48 45 37 25 22 30 24 25 28 35 54 35 RELATIVE HUMIDITY (MAX. %) 73 74 71 60 38 31 44 37 37 43 55 75 53 RELATIVE HUMIDITY (MIN. %) 31 26 25 20 15 15 17 14 16 17 20 32 21 RELATIVE HUMIDITY (MEAN% 03UTC) 68 67 64 54 36 29 41 35 36 42 51 73 50 RELATIVE HUMIDITY (MEAN% 09UTC) 38 33 31 23 17 16 20 17 18 20 24 38 25 RELATIVE HUMIDITY (MEAN% 15UTC) 45 39 35 29 18 17 24 18 20 24 28 45 29 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 10.1 15.0 38.6 14.8 0.6 0.0 6.0 0.4 0.0 0.0 0.0 22.9 108.4 DAYS WITH PRECIPITATION >=10 0 1 1 0 0 0 0 0 0 0 0 1 3 DAYS WITH PRECIPITATION >= 5 1 1 3 1 0 0 0 0 0 0 0 2 8 DAYS WITH PRECIPITATION >= 1 2 2 7 3 0 0 2 0 0 0 0 3 19 DAYS WITH PRECIPITATION 5 2 8 4 1 0 2 2 0 0 0 6 30 GREATEST DAILY PRECIPITATION 8.0 14.0 14.4 8.0 0.6 0.0 4.0 0.2 0.0 0.0 0.0 13.0 14.4 DAY 17 5 23 22 28 ** 21 2 ** ** ** 6 DAY WITH THUNDER STORM 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 0 1 1 2 1 0 0 0 1 0 0 6 WIND DIRECTION (PREVAILING) 135 225 225 225 315 225 135 360 315 90 225 135 135 PREVAILING WIND SPEED(KNOTS) 10.7 13.3 12.7 12.4 11.5 9.3 11.2 14.6 12.4 9.1 11.0 10.5 10.1 PREVAILING WIND PERCENT 18.5 20.5 14.1 12.1 17.3 11.3 20.2 16.9 8.8 5.2 7.5 13.3 9.2 CALMS PERCENT OF WIND 62.9 46.9 51.6 61.3 39.9 56.3 38.7 47.6 60.4 67.3 72.9 70.2 56.3 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 169 202 209 212 303 255 115 2 353 347 207 187 224 VECTOR WIND MAGNITUDE(KNOTS) 2.2 3.6 3.2 1.8 3.0 1.5 2.7 3.5 1.9 0.3 1.0 1.0 0.7 WIND STEADINESES (MEAN %) 56.4 60.0 54.2 41.9 49.2 34.9 38.6 53.8 44.2 9.4 37.0 30.3 14.6 WIND SPEED (MEAN KNOTS) 3.9 6.0 5.9 4.3 6.1 4.3 7.0 6.5 4.3 3.2 2.7 3.3 4.8 FASTEST WIND DIRECTION 160 300 190 240 220 300 120 90 360 310 220 300 190 FASTEST WIND SPEED (KNOTS) 19 29 43 31 27 19 31 31 23 29 19 23 43 DAY 4 17 13 14 29 1 21 2 3 19 2 12 DAYS WITH SKY CLEAR (0-2)/8 13 12 12 15 25 28 22 28 30 31 24 16 256 DAYS WITH P.CLOUDY (3-6)/8 14 7 14 10 6 2 9 3 0 0 4 11 80 DAYS WITH CLOUDY (7-8)/8 4 9 5 5 0 0 0 0 0 0 2 4 29 DAYS WITH VISIBILITY =< 2 KM 1 1 1 0 0 0 0 0 0 1 0 0 4 DURATION OF SUNSHINE HOURS 210.6 200.5 231.5 257.8 332.1 341.5 298.2 342.8 326.7 315.4 261.5 215.9 3334.5 ======================================================================================================================= 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 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 827.7 825.4 826.1 826.7 825.3 821.4 819.6 822.6 825.2 829.1 829.2 829.7 825.7 MAX. QFE PRESSURE IN HPA 835.4 831.4 833.4 833.8 830.2 828.9 825.4 826.1 830.6 833.6 837.5 833.9 837.5 DAY-HOUR 12- 6 6- 6 3- 6 8- 6 10- 6 1- 6 3- 6 5- 6 27- 6 29- 6 25- 6 14- 6 MIN. QFE PRESSURE IN HPA 820.1 816.4 819.6 821.7 821.1 815.9 814.5 818.7 820.6 824.7 823.1 825.1 814.5 DAY-HOUR 29- 0 17-12 13-12 17-12 29-12 30-12 25-15 1-12 7-12 6-12 14-12 11-12 MEAN QNH PRESSURE IN HPA 1020.9 1018.2 1019.0 1019.7 1018.1 1013.4 1011.4 1014.9 1017.9 1022.6 1022.7 1023.2 1018.5 MAX. QNH PRESSURE IN HPA 1030.0 1025.3 1027.7 1028.1 1023.9 1022.3 1018.2 1019.0 1024.3 1027.9 1032.5 1028.3 1032.5 DAY-HOUR 12- 6 6- 6 3- 6 8- 6 10- 6 1- 6 3- 6 5- 6 27- 6 29- 6 25- 6 14- 6 MIN. QNH PRESSURE IN HPA 1011.9 1007.5 1011.3 1013.8 1013.1 1006.9 1005.3 1010.2 1012.5 1017.3 1015.5 1017.8 1005.3 DAY-HOUR 29- 0 17-12 13-12 17-12 29-12 30-12 25-15 1-12 7-12 6-12 14-12 11-12 MEAN QFF PRESSURE IN HPA 1019.0 1013.1 1012.2 1008.5 1004.4 995.4 991.9 997.1 1002.5 1011.3 1016.9 1020.2 1007.7 MAX. QFF PRESSURE IN HPA 1029.0 1024.5 1029.8 1015.3 1013.1 1006.3 1000.5 1002.7 1009.9 1019.0 1031.9 1033.7 1033.7 DAY-HOUR 13- 3 6-18 3- 3 8- 3 3- 6 2- 3 3- 6 31- 3 27- 3 16- 3 25- 3 14- 3 MIN. QFF PRESSURE IN HPA 1006.1 1003.0 1000.5 1002.2 997.9 988.4 985.7 991.2 996.2 1004.3 1004.8 1011.7 985.7 DAY-HOUR 29- 0 17-12 13-12 17-12 29-12 25-21 25-12 1-12 10-12 1- 0 2-12 6-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 827.2 825.2 825.7 826.3 824.9 821.3 819.7 822.4 825.0 828.8 828.9 829.5 825.4 MAX. QFE PRESSURE IN HPA 833.2 829.7 831.8 832.5 828.2 827.3 822.4 824.5 828.0 831.8 834.5 832.2 834.5 DAY 13 7 3 8 11 1 3 5 27 15 25 14 MIN. QFE PRESSURE IN HPA 820.1 819.5 822.0 822.4 823.1 816.4 816.3 819.8 821.9 825.2 824.5 826.2 816.3 DAY 29 17 1 18 24 21 25 1 11 1 14 4 MEAN QNH PRESSURE IN HPA 1020.3 1018.0 1018.5 1019.2 1017.6 1013.3 1011.5 1014.7 1017.7 1022.2 1022.3 1023.0 1018.2 MAX. QNH PRESSURE IN HPA 1027.4 1023.3 1025.8 1026.6 1021.5 1020.4 1014.6 1017.1 1021.3 1025.8 1029.0 1026.2 1029.0 DAY 13 7 3 8 11 1 3 5 27 15 25 14 MIN. QNH PRESSURE IN HPA 1011.9 1011.2 1014.1 1014.6 1015.5 1007.5 1007.4 1011.5 1014.0 1017.9 1017.1 1019.1 1007.4 DAY 29 17 1 18 24 21 25 1 11 1 14 4 MEAN QFF PRESSURE IN HPA 1017.5 1012.2 1011.3 1008.0 1004.2 995.5 991.7 996.6 1002.2 1010.7 1015.8 1019.3 1007.1 MAX. QFF PRESSURE IN HPA 1026.1 1022.3 1026.1 1014.4 1010.9 1004.9 996.4 999.8 1007.7 1015.6 1026.7 1030.4 1030.4 DAY 7 1 3 8 3 1 3 11 29 30 25 14 MIN. QFF PRESSURE IN HPA 1006.1 1005.6 1003.7 1003.3 1000.0 989.2 987.8 991.9 996.9 1004.3 1005.6 1012.5 987.8 DAY 29 27 13 14 19 26 26 1 8 1 2 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 828.0 825.9 826.5 827.2 826.1 822.6 820.6 823.6 826.0 829.9 829.8 829.9 826.3 MAX. QFE PRESSURE IN HPA 833.6 830.1 833.0 832.9 829.4 828.0 824.8 825.5 829.2 832.6 835.8 832.6 835.8 DAY 12 3 3 8 10 1 3 5 27 16 25 14 MIN. QFE PRESSURE IN HPA 822.8 820.2 821.9 823.4 823.8 818.2 817.3 820.7 822.8 826.6 825.7 826.2 817.3 DAY 29 17 17 14 29 30 25 1 7 6 14 4 MEAN QNH PRESSURE IN HPA 1021.3 1018.7 1019.4 1020.3 1019.0 1014.9 1012.5 1016.0 1018.9 1023.5 1023.5 1023.6 1019.3 MAX. QNH PRESSURE IN HPA 1027.9 1023.7 1027.2 1027.1 1022.9 1021.3 1017.5 1018.3 1022.7 1026.7 1030.5 1026.7 1030.5 DAY 12 3 3 8 10 1 3 5 27 16 25 14 MIN. QNH PRESSURE IN HPA 1015.1 1012.0 1014.0 1015.8 1016.3 1009.6 1008.6 1012.6 1015.1 1019.6 1018.5 1019.1 1008.6 DAY 29 17 17 14 29 30 25 1 7 6 14 4 MEAN QFF PRESSURE IN HPA 1020.7 1014.8 1013.5 1010.0 1005.9 997.2 993.8 999.0 1004.8 1014.0 1019.4 1021.8 1009.6 MAX. QFF PRESSURE IN HPA 1029.0 1024.4 1029.8 1015.3 1011.9 1006.3 1000.0 1002.7 1009.9 1019.0 1031.9 1033.7 1033.7 DAY 13 1 3 8 3 2 3 31 27 16 25 14 MIN. QFF PRESSURE IN HPA 1009.8 1008.7 1003.9 1004.4 1001.2 991.5 988.9 993.8 999.1 1008.8 1008.9 1014.7 988.9 DAY 29 15 13 14 18 30 25 1 8 1 2 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 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 829.3 826.9 827.6 828.1 826.8 823.1 821.0 824.2 826.9 830.9 831.0 831.2 827.3 MAX. QFE PRESSURE IN HPA 835.4 831.4 833.4 833.8 830.2 828.9 825.4 826.1 830.6 833.6 837.5 833.9 837.5 DAY 12 6 3 8 10 1 3 5 27 29 25 14 MIN. QFE PRESSURE IN HPA 824.4 820.8 821.7 824.0 823.9 818.2 817.7 821.3 823.2 827.4 826.3 827.8 817.7 DAY 29 17 13 14 29 30 25 1 7 6 14 6 MEAN QNH PRESSURE IN HPA 1022.8 1020.0 1020.8 1021.4 1019.9 1015.5 1013.0 1016.7 1020.0 1024.7 1024.8 1025.0 1020.4 MAX. QNH PRESSURE IN HPA 1030.0 1025.3 1027.7 1028.1 1023.9 1022.3 1018.2 1019.0 1024.3 1027.9 1032.5 1028.3 1032.5 DAY 12 6 3 8 10 1 3 5 27 29 25 14 MIN. QNH PRESSURE IN HPA 1017.0 1012.7 1013.8 1016.5 1016.4 1009.6 1009.0 1013.3 1015.6 1020.6 1019.2 1021.0 1009.0 DAY 29 17 13 14 29 30 25 1 7 6 14 6 MEAN QFF PRESSURE IN HPA 1021.4 1015.3 1014.1 1009.7 1005.9 997.3 993.5 998.9 1004.3 1013.1 1019.0 1022.2 1009.6 MAX. QFF PRESSURE IN HPA 1028.8 1024.4 1028.3 1014.9 1013.1 1005.8 1000.5 1002.2 1009.8 1018.5 1031.4 1033.5 1033.5 DAY 7 7 3 7 3 2 3 11 28 17 25 14 MIN. QFF PRESSURE IN HPA 1011.1 1009.3 1001.5 1004.9 1001.0 990.5 989.1 993.5 999.5 1007.8 1010.2 1014.9 989.1 DAY 29 16 13 14 18 30 25 1 7 6 2 6 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 827.7 825.6 826.6 827.0 825.8 821.9 819.6 822.7 825.5 829.3 829.3 829.5 825.9 MAX. QFE PRESSURE IN HPA 833.5 830.6 831.3 832.7 829.2 827.9 824.5 824.6 829.3 831.8 835.8 832.4 835.8 DAY 12 6 3 7 10 1 3 5 27 30 25 14 MIN. QFE PRESSURE IN HPA 822.1 818.9 821.2 823.2 822.7 817.1 816.5 820.0 822.3 825.8 824.7 826.4 816.5 DAY 17 17 13 17 29 30 26 1 7 6 14 6 MEAN QNH PRESSURE IN HPA 1020.9 1018.4 1019.6 1020.1 1018.6 1014.1 1011.3 1014.9 1018.3 1022.8 1022.8 1023.0 1018.7 MAX. QNH PRESSURE IN HPA 1027.8 1024.3 1025.2 1026.8 1022.7 1021.1 1017.1 1017.2 1022.8 1025.8 1030.5 1026.5 1030.5 DAY 12 6 3 7 10 1 3 5 27 30 25 14 MIN. QNH PRESSURE IN HPA 1014.3 1010.5 1013.2 1015.6 1015.0 1008.3 1007.6 1011.8 1014.5 1018.7 1017.3 1019.4 1007.6 DAY 17 17 13 17 29 30 26 1 7 6 14 6 MEAN QFF PRESSURE IN HPA 1018.1 1012.7 1012.3 1008.2 1004.6 995.6 991.2 996.6 1002.1 1010.4 1015.9 1019.1 1007.2 MAX. QFF PRESSURE IN HPA 1026.5 1022.2 1024.4 1013.2 1010.2 1004.5 998.3 1000.6 1008.4 1015.3 1027.8 1030.0 1030.0 DAY 12 6 3 7 3 1 3 12 27 30 25 14 MIN. QFF PRESSURE IN HPA 1009.8 1006.3 1001.7 1003.3 999.9 988.7 987.2 991.7 997.3 1005.2 1006.0 1012.8 987.2 DAY 29 15 13 17 29 30 26 1 10 6 2 6 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 826.4 823.9 824.8 825.4 824.2 820.4 818.1 821.2 823.9 827.7 827.9 828.3 824.4 MAX. QFE PRESSURE IN HPA 832.0 829.5 829.8 830.8 827.5 826.1 822.3 823.1 827.7 830.0 834.3 831.1 834.3 DAY 12 6 3 7 10 1 3 11 27 15 25 22 MIN. QFE PRESSURE IN HPA 821.3 816.4 819.6 821.7 821.1 815.9 814.8 818.7 820.6 824.7 823.1 825.1 814.8 DAY 17 17 13 17 29 30 25 1 7 6 14 11 MEAN QNH PRESSURE IN HPA 1019.4 1016.4 1017.5 1018.2 1016.7 1012.2 1009.5 1013.2 1016.4 1020.9 1021.1 1021.6 1016.9 MAX. QNH PRESSURE IN HPA 1026.0 1023.0 1023.4 1024.6 1020.7 1019.0 1014.5 1015.5 1020.9 1023.6 1028.7 1024.9 1028.7 DAY 12 6 3 7 10 1 3 11 27 15 25 22 MIN. QNH PRESSURE IN HPA 1013.3 1007.5 1011.3 1013.8 1013.1 1006.9 1005.6 1010.2 1012.5 1017.3 1015.5 1017.8 1005.6 DAY 17 17 13 17 29 30 25 1 7 6 14 11 MEAN QFF PRESSURE IN HPA 1016.5 1010.7 1010.3 1007.0 1003.2 994.2 989.8 995.3 1000.9 1009.3 1014.6 1018.0 1005.8 MAX. QFF PRESSURE IN HPA 1024.8 1021.1 1023.5 1011.8 1008.6 1003.2 995.2 999.3 1006.9 1013.2 1026.3 1028.4 1028.4 DAY 12 6 2 7 3 1 3 11 27 16 25 13 MIN. QFF PRESSURE IN HPA 1009.6 1003.0 1000.5 1002.2 997.9 988.4 985.7 991.2 996.2 1004.7 1004.8 1011.7 985.7 DAY 29 17 13 17 29 30 25 1 10 6 2 6 ======================================================================================================================= 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 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 827.1 824.7 825.3 825.8 824.2 820.0 818.3 821.3 823.9 828.1 828.5 829.2 824.7 MAX. QFE PRESSURE IN HPA 832.9 830.0 829.6 831.1 828.9 826.3 822.3 823.1 827.5 830.6 835.0 832.0 835.0 DAY 12 6 2 7 10 1 21 11 26 15 25 14 MIN. QFE PRESSURE IN HPA 822.2 816.6 821.3 822.6 821.6 816.1 814.5 819.8 820.6 824.7 823.7 826.0 814.5 DAY 28 17 13 13 23 30 25 20 7 6 14 11 MEAN QNH PRESSURE IN HPA 1020.2 1017.4 1018.0 1018.7 1016.8 1011.8 1009.8 1013.4 1016.4 1021.4 1021.9 1022.7 1017.4 MAX. QNH PRESSURE IN HPA 1027.1 1023.6 1023.2 1024.9 1022.3 1019.2 1014.5 1015.5 1020.7 1024.3 1029.6 1026.0 1029.6 DAY 12 6 2 7 10 1 21 11 26 15 25 14 MIN. QNH PRESSURE IN HPA 1014.4 1007.7 1013.3 1014.9 1013.7 1007.2 1005.3 1011.5 1012.5 1017.3 1016.2 1018.9 1005.3 DAY 28 17 13 13 23 30 25 20 7 6 14 11 MEAN QFF PRESSURE IN HPA 1019.6 1013.4 1012.0 1008.3 1003.6 993.9 991.1 996.4 1002.2 1011.8 1017.9 1021.0 1007.6 MAX. QFF PRESSURE IN HPA 1028.5 1023.4 1025.5 1013.8 1010.5 1004.3 998.0 1000.1 1008.6 1016.3 1030.2 1032.4 1032.4 DAY 12 6 2 7 10 1 21 31 27 16 25 14 MIN. QFF PRESSURE IN HPA 1011.1 1006.6 1004.4 1004.4 999.2 989.0 986.1 993.0 997.6 1006.7 1008.2 1014.0 986.1 DAY 28 15 13 28 18 19 25 25 11 6 1 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 828.1 825.6 826.3 827.1 825.3 820.9 819.8 822.7 825.0 829.1 829.4 830.0 825.8 MAX. QFE PRESSURE IN HPA 833.9 830.8 831.2 832.7 829.5 827.0 823.0 825.0 828.4 831.7 835.1 832.8 835.1 DAY 12 6 2 7 10 1 2 3 26 15 25 14 MIN. QFE PRESSURE IN HPA 821.3 819.0 822.5 823.5 822.7 817.0 816.5 820.6 821.3 825.9 824.8 826.3 816.5 DAY 28 17 13 17 23 30 25 26 7 6 14 4 MEAN QNH PRESSURE IN HPA 1021.3 1018.4 1019.3 1020.2 1018.0 1012.9 1011.5 1015.0 1017.7 1022.5 1022.9 1023.7 1018.6 MAX. QNH PRESSURE IN HPA 1028.3 1024.6 1025.1 1026.8 1023.0 1020.1 1015.3 1017.7 1021.7 1025.6 1029.7 1027.0 1029.7 DAY 12 6 2 7 10 1 2 3 26 15 25 14 MIN. QNH PRESSURE IN HPA 1013.3 1010.6 1014.7 1015.9 1015.0 1008.2 1007.6 1012.5 1013.3 1018.8 1017.5 1019.2 1007.6 DAY 28 17 13 17 23 30 25 26 7 6 14 4 MEAN QFF PRESSURE IN HPA 1019.8 1013.5 1012.4 1008.5 1004.0 994.7 992.1 997.2 1002.2 1011.1 1017.1 1021.0 1007.8 MAX. QFF PRESSURE IN HPA 1027.9 1024.5 1025.9 1013.6 1012.5 1003.7 997.5 1000.7 1007.5 1016.4 1028.5 1032.7 1032.7 DAY 12 6 2 7 2 1 2 11 28 15 24 14 MIN. QFF PRESSURE IN HPA 1009.5 1006.9 1004.3 1004.7 999.1 989.0 987.9 993.3 996.7 1005.1 1008.7 1012.9 987.9 DAY 28 15 12 27 18 30 24 26 7 6 1 4 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 827.8 825.5 826.4 826.9 825.2 821.1 820.2 822.9 825.2 829.2 829.2 829.8 825.8 MAX. QFE PRESSURE IN HPA 833.4 830.2 831.8 832.9 829.1 827.0 823.0 824.4 828.1 832.0 835.1 832.5 835.1 DAY 12 6 2 7 10 1 2 3 23 14 25 14 MIN. QFE PRESSURE IN HPA 820.7 820.0 823.0 823.5 822.8 817.1 817.0 821.0 822.0 826.4 824.8 826.7 817.0 DAY 28 16 28 17 29 20 24 26 6 6 14 3 MEAN QNH PRESSURE IN HPA 1021.1 1018.3 1019.3 1019.9 1018.0 1013.1 1012.0 1015.2 1017.9 1022.6 1022.7 1023.4 1018.6 MAX. QNH PRESSURE IN HPA 1027.7 1023.9 1025.8 1027.1 1022.6 1020.1 1015.3 1017.0 1021.4 1026.0 1029.7 1026.6 1029.7 DAY 12 6 2 7 10 1 2 3 23 14 25 14 MIN. QNH PRESSURE IN HPA 1012.6 1011.8 1015.3 1015.9 1015.1 1008.3 1008.2 1013.0 1014.1 1019.4 1017.5 1019.7 1008.2 DAY 28 16 28 17 29 20 24 26 6 6 14 3 MEAN QFF PRESSURE IN HPA 1018.3 1012.5 1011.9 1008.0 1003.8 994.7 991.8 996.9 1001.8 1010.4 1015.9 1019.7 1007.1 MAX. QFF PRESSURE IN HPA 1026.2 1023.4 1025.9 1013.5 1010.6 1003.9 996.9 1000.1 1006.7 1015.5 1027.0 1030.1 1030.1 DAY 12 6 2 7 2 1 2 11 27 29 25 14 MIN. QFF PRESSURE IN HPA 1006.1 1006.1 1003.6 1004.1 999.3 988.4 988.1 993.3 996.8 1005.3 1006.8 1013.0 988.1 DAY 28 15 12 28 18 25 25 26 7 6 1 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 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.1 10.2 14.5 17.7 23.0 28.4 28.8 29.3 23.9 18.1 13.0 6.4 18.4 MINIMUN AIR TEMPERATURE (C) 2.3 2.6 5.6 10.7 13.6 19.0 20.1 20.8 15.1 8.6 5.3 1.2 10.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 7 13 16 1 0 0 0 37 DAYS WITH MINIMUM TEMP. <=-4 2 2 0 0 0 0 0 0 0 0 0 4 8 DAYS WITH FREEZING MIN.<= 0 14 10 1 0 0 0 0 0 0 0 2 14 41 TEMPERATURE RECORDS LOWEST(C) -4.8 -4.6 -3.0 5.0 6.6 14.0 15.0 14.6 7.4 5.0 -3.2 -7.4 -7.4 DAY 22 9 17 7 15 1 19 20 29 31 30 30 MAXIMUM AIR TEMPERATURE (C) 12.3 17.6 22.6 24.5 30.7 35.6 35.7 36.9 31.8 26.6 20.7 12.2 25.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 21 30 31 31 20 5 0 0 138 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 17.4 23.0 26.6 29.4 34.0 37.0 38.0 40.2 35.6 30.6 23.6 16.4 40.2 DAY 6 15 7 30 23 20 26 14 7 7 1 2 DIF. BETWEEN (MAX.-MIN.) (C) 10.0 15.0 17.0 13.8 17.1 16.6 15.6 16.1 16.7 18.0 15.4 11.0 15.2 MEAN DAILY TEMP. (MDT) (C) 7.3 10.1 14.1 17.6 22.1 27.3 27.9 28.8 23.5 17.6 13.0 6.7 18.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.8 49.9 189.7 213.9 242.8 87.3 0.0 0.0 0.0 785.4 HEATING DEG. DAYS(BASE 18 0C) 330.9 228.4 124.0 34.7 2.0 0.0 0.0 0.0 0.5 31.1 150.7 350.1 1252.4 DEWPOINT (MEAN C) 0.2 -4.5 -4.4 1.0 -0.6 2.2 2.6 5.6 0.6 -1.2 -0.5 -1.1 0.0 MIXING RATIO (G/KG) 4.95 3.48 3.52 5.32 4.59 5.57 5.81 7.32 5.14 4.33 4.69 4.53 4.94 VAPOUR PRESSURE (HPA) 6.52 4.60 4.65 6.99 6.03 7.29 7.60 9.54 6.76 5.74 6.20 5.98 6.49 SATURATION DEF. (HPA) 3.95 8.63 13.00 14.08 23.55 32.88 33.31 33.02 24.62 16.34 9.59 4.19 18.10 RELATIVE HUMIDITY (MEAN %) 64 39 30 38 23 20 20 25 23 29 43 62 35 RELATIVE HUMIDITY (MAX. %) 84 62 49 59 36 31 31 39 34 44 62 82 51 RELATIVE HUMIDITY (MIN. %) 44 21 15 21 14 12 13 13 15 18 26 41 21 RELATIVE HUMIDITY (MEAN% 03UTC) 77 58 46 51 33 28 29 36 33 43 60 79 48 RELATIVE HUMIDITY (MEAN% 09UTC) 50 26 20 27 17 13 15 17 17 21 31 47 25 RELATIVE HUMIDITY (MEAN% 15UTC) 58 29 23 29 16 14 15 15 18 25 37 53 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 79.0 0.4 2.4 10.2 2.0 2.6 0.0 0.0 0.0 0.0 11.4 86.8 194.8 DAYS WITH PRECIPITATION >=10 3 0 0 0 0 0 0 0 0 0 1 3 7 DAYS WITH PRECIPITATION >= 5 4 0 0 1 0 0 0 0 0 0 1 4 10 DAYS WITH PRECIPITATION >= 1 9 0 1 2 1 1 0 0 0 0 1 7 22 DAYS WITH PRECIPITATION 10 1 2 3 1 2 0 0 0 0 2 8 29 GREATEST DAILY PRECIPITATION 22.0 0.4 2.0 6.0 2.0 2.0 0.0 0.0 0.0 0.0 11.0 33.0 33.0 DAY 9 7 19 10 5 20 ** ** ** ** 16 26 DAY WITH THUNDER STORM 0 0 0 0 1 2 0 0 0 0 0 0 3 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 2 0 1 0 0 0 0 0 0 0 3 WIND DIRECTION (PREVAILING) 135 225 225 225 225 225 360 360 360 270 135 135 225 PREVAILING WIND SPEED(KNOTS) 9.8 14.6 14.3 12.4 15.3 10.2 12.8 13.6 10.6 10.9 9.6 10.6 12.7 PREVAILING WIND PERCENT 12.9 15.5 16.1 17.9 10.5 7.1 15.7 14.1 11.7 6.9 7.9 19.8 8.4 CALMS PERCENT OF WIND 64.1 59.1 54.8 52.5 58.1 62.1 49.2 50.0 56.3 74.2 78.3 52.8 59.3 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 181 207 214 232 258 212 360 21 3 314 192 166 234 VECTOR WIND MAGNITUDE(KNOTS) 1.7 2.9 3.2 2.7 2.4 0.7 3.2 2.2 1.5 0.5 1.2 1.6 0.7 WIND STEADINESES (MEAN %) 45.9 58.0 55.2 50.9 46.2 17.5 53.3 37.9 32.6 19.2 54.5 30.2 15.2 WIND SPEED (MEAN KNOTS) 3.7 5.0 5.8 5.3 5.2 4.0 6.0 5.8 4.6 2.6 2.2 5.3 4.6 FASTEST WIND DIRECTION 240 240 200 220 170 190 310 360 280 290 240 350 200 FASTEST WIND SPEED (KNOTS) 31 31 35 29 35 23 29 29 29 17 23 31 35 DAY 27 24 15 1 12 15 12 2 2 2 27 27 DAYS WITH SKY CLEAR (0-2)/8 13 17 20 13 27 22 20 27 30 31 21 13 254 DAYS WITH P.CLOUDY (3-6)/8 10 12 9 13 4 8 11 4 0 0 8 11 90 DAYS WITH CLOUDY (7-8)/8 8 0 2 4 0 0 0 0 0 0 1 7 22 DAYS WITH VISIBILITY =< 2 KM 3 0 0 0 0 0 0 0 0 0 0 0 3 DURATION OF SUNSHINE HOURS 182.4 263.2 288.0 244.3 350.7 326.6 321.8 340.4 318.2 310.7 245.8 187.2 3379.3 ======================================================================================================================= 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 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 826.1 827.9 827.6 825.5 824.0 821.9 821.6 821.8 826.3 830.2 829.5 827.7 825.8 MAX. QFE PRESSURE IN HPA 832.5 833.9 834.2 830.5 829.0 828.2 825.8 826.2 831.8 834.4 833.6 836.1 836.1 DAY-HOUR 11-18 10- 6 9- 6 5- 6 3- 6 2- 6 18- 6 30- 6 27- 6 15- 6 29- 6 4- 6 MIN. QFE PRESSURE IN HPA 818.6 822.8 821.1 819.3 817.7 816.0 817.6 816.9 821.0 825.8 824.6 820.2 816.0 DAY-HOUR 27-12 19-12 16- 0 17-12 13-15 18-12 11- 0 2-12 12-12 3-15 24-12 27- 0 MEAN QNH PRESSURE IN HPA 1019.0 1021.1 1020.7 1018.3 1016.6 1014.0 1013.7 1013.9 1019.3 1023.8 1023.0 1020.9 1018.7 MAX. QNH PRESSURE IN HPA 1026.6 1028.3 1028.6 1024.2 1022.4 1021.5 1018.7 1019.1 1025.8 1028.8 1027.9 1030.9 1030.9 DAY-HOUR 11-18 10- 6 9- 6 5- 6 3- 6 2- 6 18- 6 30- 6 27- 6 15- 6 29- 6 4- 6 MIN. QNH PRESSURE IN HPA 1010.1 1015.1 1013.1 1010.9 1009.0 1007.0 1008.9 1008.1 1013.0 1018.7 1017.2 1012.0 1007.0 DAY-HOUR 27-12 19-12 16- 0 17-12 13-15 18-12 11- 0 2-12 12-12 3-15 24-12 27- 0 MEAN QFF PRESSURE IN HPA 1016.1 1016.2 1012.7 1007.7 1002.5 996.4 995.7 995.4 1004.6 1013.3 1015.9 1018.6 1007.9 MAX. QFF PRESSURE IN HPA 1025.7 1027.4 1023.2 1015.6 1009.6 1005.9 1003.0 1003.6 1015.4 1021.0 1025.8 1032.1 1032.1 DAY-HOUR 1- 3 9- 3 24- 3 5- 6 3- 6 2- 6 18- 3 29- 3 27- 6 27- 3 29- 6 4- 6 MIN. QFF PRESSURE IN HPA 1004.6 1007.4 1002.1 998.9 994.1 989.9 990.3 988.6 996.4 1006.7 1007.7 1007.8 988.6 DAY-HOUR 27- 9 19-12 16- 0 17-18 13-12 18-12 11- 0 2-12 15-12 3-12 24-12 17- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 825.8 827.5 827.2 824.8 823.7 821.7 821.3 821.8 825.9 829.9 829.2 827.3 825.5 MAX. QFE PRESSURE IN HPA 831.5 831.5 831.6 827.6 827.8 826.1 824.4 824.8 830.5 832.4 831.4 834.2 834.2 DAY 12 11 7 27 4 2 18 29 27 27 29 4 MIN. QFE PRESSURE IN HPA 821.3 823.4 821.1 819.3 818.0 817.2 817.6 819.0 821.4 826.6 826.0 820.2 817.2 DAY 27 19 16 18 14 18 11 5 12 3 24 27 MEAN QNH PRESSURE IN HPA 1018.7 1020.7 1020.4 1017.5 1016.1 1013.8 1013.3 1013.9 1018.8 1023.5 1022.7 1020.4 1018.3 MAX. QNH PRESSURE IN HPA 1025.4 1025.4 1025.5 1020.8 1021.0 1019.0 1017.0 1017.5 1024.2 1026.5 1025.3 1028.6 1028.6 DAY 12 11 7 27 4 2 18 29 27 27 29 4 MIN. QNH PRESSURE IN HPA 1013.3 1015.8 1013.1 1010.9 1009.4 1008.5 1008.9 1010.6 1013.4 1019.6 1018.9 1012.0 1008.5 DAY 27 19 16 18 14 18 11 5 12 3 24 27 MEAN QFF PRESSURE IN HPA 1015.2 1015.3 1011.9 1006.6 1002.4 996.3 995.4 995.2 1003.8 1012.4 1014.9 1017.5 1007.2 MAX. QFF PRESSURE IN HPA 1024.1 1025.2 1019.1 1011.4 1008.1 1002.8 1001.7 1001.0 1013.3 1018.0 1021.3 1028.8 1028.8 DAY 1 9 24 11 4 2 18 29 27 27 30 4 MIN. QFF PRESSURE IN HPA 1006.9 1008.6 1002.1 998.9 994.5 991.1 990.3 990.6 996.8 1007.7 1009.4 1007.8 990.3 DAY 27 19 16 18 13 19 11 16 16 8 24 17 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 826.2 828.2 828.1 826.0 824.8 822.9 822.6 822.8 827.2 831.0 830.0 827.9 826.5 MAX. QFE PRESSURE IN HPA 831.5 831.9 832.4 829.4 828.2 827.2 825.3 825.6 831.4 833.4 832.6 834.7 834.7 DAY 12 10 9 5 4 2 18 29 27 27 29 4 MIN. QFE PRESSURE IN HPA 820.9 823.6 822.0 821.4 818.9 817.8 819.4 819.7 822.9 828.3 825.8 820.5 817.8 DAY 27 19 16 19 14 18 11 3 12 3 24 27 MEAN QNH PRESSURE IN HPA 1019.1 1021.5 1021.4 1018.9 1017.5 1015.2 1014.9 1015.1 1020.3 1024.8 1023.7 1021.2 1019.4 MAX. QNH PRESSURE IN HPA 1025.4 1025.9 1026.5 1022.9 1021.5 1020.3 1018.1 1018.4 1025.3 1027.7 1026.7 1029.2 1029.2 DAY 12 10 9 5 4 2 18 29 27 27 29 4 MIN. QNH PRESSURE IN HPA 1012.8 1016.0 1014.1 1013.4 1010.5 1009.2 1011.1 1011.4 1015.2 1021.6 1018.7 1012.4 1009.2 DAY 27 19 16 19 14 18 11 3 12 3 24 27 MEAN QFF PRESSURE IN HPA 1016.9 1017.7 1014.8 1009.2 1004.1 998.1 997.6 997.4 1006.8 1016.3 1018.3 1019.8 1009.7 MAX. QFF PRESSURE IN HPA 1025.7 1027.4 1023.2 1013.9 1008.8 1004.9 1003.0 1003.6 1015.3 1021.0 1025.2 1031.5 1031.5 DAY 1 9 24 11 3 1 18 29 27 27 29 4 MIN. QFF PRESSURE IN HPA 1007.5 1009.9 1005.3 1004.0 996.1 991.8 993.4 992.5 999.8 1010.8 1010.6 1010.8 991.8 DAY 27 19 16 19 13 19 11 2 16 8 24 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 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 827.4 829.4 829.3 827.1 825.5 823.4 823.2 823.4 828.1 832.1 831.2 829.1 827.4 MAX. QFE PRESSURE IN HPA 832.3 833.9 834.2 830.5 829.0 828.2 825.8 826.2 831.8 834.4 833.6 836.1 836.1 DAY 12 10 9 5 3 2 18 30 27 15 29 4 MIN. QFE PRESSURE IN HPA 820.9 825.0 823.6 822.9 819.4 818.2 820.5 820.3 823.8 828.9 827.2 821.5 818.2 DAY 27 19 16 17 14 18 11 3 12 3 24 27 MEAN QNH PRESSURE IN HPA 1020.6 1022.9 1022.8 1020.2 1018.2 1015.8 1015.6 1015.8 1021.4 1026.1 1025.0 1022.5 1020.6 MAX. QNH PRESSURE IN HPA 1026.4 1028.3 1028.6 1024.2 1022.4 1021.5 1018.7 1019.1 1025.8 1028.8 1027.9 1030.9 1030.9 DAY 12 10 9 5 3 2 18 30 27 15 29 4 MIN. QNH PRESSURE IN HPA 1012.8 1017.7 1016.0 1015.2 1011.1 1009.6 1012.4 1012.1 1016.3 1022.3 1020.3 1013.6 1009.6 DAY 27 19 16 17 14 18 11 3 12 3 24 27 MEAN QFF PRESSURE IN HPA 1017.9 1018.3 1014.8 1009.7 1003.8 998.0 997.4 997.2 1006.6 1015.1 1017.7 1020.5 1009.8 MAX. QFF PRESSURE IN HPA 1025.5 1027.1 1022.0 1015.6 1009.6 1005.9 1002.4 1002.5 1015.4 1020.4 1025.8 1032.1 1032.1 DAY 1 10 9 5 3 2 18 31 27 25 29 4 MIN. QFF PRESSURE IN HPA 1007.2 1011.0 1006.5 1003.5 996.1 991.0 993.2 992.1 1000.2 1011.0 1010.2 1011.6 991.0 DAY 27 19 31 17 13 19 11 15 16 3 24 27 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 826.2 828.3 828.0 825.9 824.5 822.3 821.7 821.9 826.5 830.4 829.5 827.7 826.1 MAX. QFE PRESSURE IN HPA 831.1 832.6 832.4 828.9 828.4 827.3 824.2 825.0 830.0 832.9 831.7 834.1 834.1 DAY 10 10 6 12 3 2 17 30 27 27 2 4 MIN. QFE PRESSURE IN HPA 818.8 824.1 823.3 821.2 818.5 816.9 819.7 819.1 822.4 827.0 825.9 821.1 816.9 DAY 27 19 31 17 14 18 11 2 12 3 24 27 MEAN QNH PRESSURE IN HPA 1019.1 1021.6 1021.3 1018.8 1017.1 1014.4 1013.8 1014.0 1019.5 1024.1 1023.0 1020.8 1019.0 MAX. QNH PRESSURE IN HPA 1024.9 1026.7 1026.5 1022.3 1021.7 1020.4 1016.8 1017.7 1023.6 1027.1 1025.6 1028.5 1028.5 DAY 10 10 6 12 3 2 17 30 27 27 2 4 MIN. QNH PRESSURE IN HPA 1010.4 1016.6 1015.7 1013.2 1010.0 1008.1 1011.4 1010.7 1014.6 1020.1 1018.8 1013.1 1008.1 DAY 27 19 31 17 14 18 11 2 12 3 24 27 MEAN QFF PRESSURE IN HPA 1015.7 1015.9 1012.6 1007.9 1002.6 996.5 995.4 994.9 1003.9 1012.3 1014.9 1017.8 1007.5 MAX. QFF PRESSURE IN HPA 1021.6 1024.9 1019.5 1013.1 1009.0 1004.9 1000.4 999.7 1011.4 1016.9 1021.7 1028.6 1028.6 DAY 1 9 23 11 5 2 18 30 27 26 29 4 MIN. QFF PRESSURE IN HPA 1004.6 1008.9 1004.8 1001.3 994.2 989.9 992.4 990.2 997.7 1007.1 1010.2 1010.4 989.9 DAY 27 19 31 17 13 19 11 15 16 3 24 21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 825.1 826.6 826.1 824.3 822.9 820.7 820.4 820.2 824.9 828.9 828.1 826.5 824.6 MAX. QFE PRESSURE IN HPA 830.8 831.2 830.3 827.9 825.8 825.2 823.2 823.6 828.6 831.2 830.3 833.1 833.1 DAY 10 10 9 12 3 2 17 29 26 27 2 4 MIN. QFE PRESSURE IN HPA 818.6 822.8 821.1 819.3 817.8 816.0 818.2 816.9 821.0 826.0 824.6 820.7 816.0 DAY 27 19 31 17 14 18 11 2 12 3 24 21 MEAN QNH PRESSURE IN HPA 1017.8 1019.6 1019.0 1016.9 1015.2 1012.6 1012.3 1012.0 1017.6 1022.3 1021.4 1019.5 1017.2 MAX. QNH PRESSURE IN HPA 1024.6 1025.1 1024.0 1021.1 1018.7 1017.9 1015.6 1016.0 1022.0 1025.1 1024.0 1027.3 1027.3 DAY 10 10 9 12 3 2 17 29 26 27 2 4 MIN. QNH PRESSURE IN HPA 1010.1 1015.1 1013.1 1010.9 1009.2 1007.0 1009.6 1008.1 1013.0 1018.9 1017.2 1012.6 1007.0 DAY 27 19 31 17 14 18 11 2 12 3 24 21 MEAN QFF PRESSURE IN HPA 1014.3 1014.1 1010.5 1005.9 1001.4 995.2 994.4 993.5 1002.6 1011.2 1013.6 1016.6 1006.1 MAX. QFF PRESSURE IN HPA 1020.7 1022.7 1016.1 1012.1 1006.6 1003.3 1000.1 999.5 1011.3 1016.9 1019.9 1026.7 1026.7 DAY 10 10 23 12 4 1 18 29 27 27 30 4 MIN. QFF PRESSURE IN HPA 1005.0 1007.4 1002.8 999.6 994.1 989.9 990.8 988.6 996.4 1006.7 1007.7 1009.0 988.6 DAY 27 19 31 17 13 18 11 2 15 3 24 16 ======================================================================================================================= 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 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 825.8 827.0 826.6 824.5 823.0 820.6 820.4 820.3 825.1 829.2 828.7 827.4 824.9 MAX. QFE PRESSURE IN HPA 831.4 831.6 830.2 827.7 825.8 824.8 822.9 824.0 829.1 831.5 830.5 834.0 834.0 DAY 10 10 6 12 3 1 17 30 26 27 1 3 MIN. QFE PRESSURE IN HPA 820.3 823.0 822.6 819.3 817.7 816.0 818.1 817.4 821.3 825.8 825.9 821.8 816.0 DAY 27 19 31 17 13 18 10 2 12 3 24 21 MEAN QNH PRESSURE IN HPA 1018.6 1020.1 1019.6 1017.1 1015.3 1012.5 1012.3 1012.1 1017.8 1022.6 1022.1 1020.5 1017.5 MAX. QNH PRESSURE IN HPA 1025.3 1025.5 1023.9 1020.9 1018.7 1017.5 1015.2 1016.5 1022.6 1025.4 1024.2 1028.4 1028.4 DAY 10 10 6 12 3 1 17 30 26 27 1 3 MIN. QNH PRESSURE IN HPA 1012.1 1015.3 1014.9 1010.9 1009.0 1007.0 1009.5 1008.7 1013.3 1018.7 1018.8 1013.9 1007.0 DAY 27 19 31 17 13 18 10 2 12 3 24 21 MEAN QFF PRESSURE IN HPA 1016.4 1016.2 1012.8 1007.3 1001.8 995.3 995.0 994.6 1004.3 1014.0 1016.7 1019.2 1007.8 MAX. QFF PRESSURE IN HPA 1022.3 1024.3 1019.2 1013.4 1006.4 1002.9 1000.3 1000.5 1012.6 1019.1 1024.3 1029.4 1029.4 DAY 16 10 23 10 5 1 18 28 30 27 30 4 MIN. QFF PRESSURE IN HPA 1008.7 1008.9 1005.0 1000.2 994.1 990.2 991.9 989.9 997.4 1009.7 1011.5 1010.6 989.9 DAY 27 19 15 17 13 18 10 5 15 8 24 16 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 826.5 828.2 827.7 825.8 824.1 821.8 821.5 821.8 826.5 830.1 829.6 828.1 826.0 MAX. QFE PRESSURE IN HPA 832.5 832.2 832.0 829.0 828.6 825.5 824.4 825.2 831.0 832.4 831.0 834.0 834.0 DAY 11 10 6 4 3 1 17 28 26 26 28 3 MIN. QFE PRESSURE IN HPA 821.5 823.4 823.1 819.3 818.9 817.5 818.3 818.1 822.4 827.0 827.3 822.5 817.5 DAY 27 18 15 17 13 17 10 4 11 3 24 21 MEAN QNH PRESSURE IN HPA 1019.4 1021.5 1020.9 1018.6 1016.6 1013.9 1013.5 1013.9 1019.5 1023.8 1023.1 1021.3 1018.8 MAX. QNH PRESSURE IN HPA 1026.6 1026.2 1026.0 1022.4 1022.0 1018.3 1017.0 1017.9 1024.8 1026.5 1024.8 1028.4 1028.4 DAY 11 10 6 4 3 1 17 28 26 26 28 3 MIN. QNH PRESSURE IN HPA 1013.6 1015.8 1015.5 1010.9 1010.5 1008.8 1009.8 1009.5 1014.6 1020.1 1020.4 1014.7 1008.8 DAY 27 18 15 17 13 17 10 4 11 3 24 21 MEAN QFF PRESSURE IN HPA 1016.7 1016.7 1012.8 1008.1 1002.2 996.0 995.5 995.6 1004.9 1013.0 1015.9 1019.2 1008.1 MAX. QFF PRESSURE IN HPA 1022.9 1025.9 1021.2 1013.6 1008.3 1003.2 1000.5 1000.6 1014.3 1017.3 1023.7 1029.2 1029.2 DAY 16 8 23 5 3 1 17 18 26 26 29 4 MIN. QFF PRESSURE IN HPA 1010.5 1009.9 1005.0 998.9 995.0 990.4 990.3 990.7 998.3 1008.2 1010.8 1010.7 990.3 DAY 27 15 15 17 13 18 10 4 15 3 23 16 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 826.2 828.1 827.6 825.6 824.1 821.9 821.7 822.1 826.5 830.2 829.5 827.8 825.9 MAX. QFE PRESSURE IN HPA 832.3 832.2 832.0 828.3 828.6 825.5 824.6 825.4 830.5 832.4 831.5 834.2 834.2 DAY 11 10 6 4 3 1 17 28 26 26 28 3 MIN. QFE PRESSURE IN HPA 822.0 823.4 822.0 819.8 818.6 817.5 818.3 818.7 821.8 827.2 827.0 821.1 817.5 DAY 23 18 15 17 13 17 10 4 11 2 23 26 MEAN QNH PRESSURE IN HPA 1019.1 1021.3 1020.8 1018.4 1016.6 1014.0 1013.8 1014.3 1019.5 1023.8 1023.1 1021.0 1018.8 MAX. QNH PRESSURE IN HPA 1026.4 1026.2 1026.0 1021.6 1022.0 1018.3 1017.2 1018.2 1024.2 1026.5 1025.4 1028.6 1028.6 DAY 11 10 6 4 3 1 17 28 26 26 28 3 MIN. QNH PRESSURE IN HPA 1014.1 1015.8 1014.1 1011.5 1010.1 1008.8 1009.8 1010.2 1013.9 1020.3 1020.1 1013.1 1008.8 DAY 23 18 15 17 13 17 10 4 11 2 23 26 MEAN QFF PRESSURE IN HPA 1015.6 1015.6 1011.9 1007.4 1002.2 996.0 995.3 995.2 1004.1 1012.2 1015.2 1018.0 1007.4 MAX. QFF PRESSURE IN HPA 1021.2 1026.0 1019.9 1012.2 1008.3 1003.2 1001.2 1000.9 1012.7 1016.9 1022.9 1028.1 1028.1 DAY 16 8 22 11 3 1 18 18 30 30 29 29 MIN. QFF PRESSURE IN HPA 1010.4 1008.5 1003.1 998.9 994.3 990.6 990.9 990.6 997.2 1007.3 1010.7 1009.3 990.6 DAY 26 18 15 17 13 18 10 4 15 7 23 16 ======================================================================================================================= 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 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.0 7.3 12.9 18.7 21.7 27.7 29.9 28.6 25.8 18.5 11.5 8.3 18.0 MINIMUN AIR TEMPERATURE (C) -1.4 1.5 5.6 9.6 12.4 17.1 20.9 20.5 16.1 9.2 4.5 0.3 9.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 3 16 13 4 0 0 0 36 DAYS WITH MINIMUM TEMP. <=-4 12 2 0 0 0 0 0 0 0 0 0 3 17 DAYS WITH FREEZING MIN.<= 0 20 12 4 0 0 0 0 0 0 0 7 18 61 TEMPERATURE RECORDS LOWEST(C) -9.0 -6.6 -1.4 2.0 6.4 11.4 15.4 15.0 11.0 5.0 -2.0 -5.6 -9.0 DAY 27 19 27 7 9 1 27 19 29 25 10 28 MAXIMUM AIR TEMPERATURE (C) 11.6 13.5 19.9 26.3 29.0 35.5 37.3 35.9 33.4 27.0 18.8 16.7 25.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 5 11 30 31 31 30 1 0 0 139 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 17.4 19.0 25.0 31.4 32.2 40.4 40.2 38.6 35.6 30.0 24.4 22.2 40.4 DAY 3 21 12 25 29 24 16 4 7 2 1 6 DIF. BETWEEN (MAX.-MIN.) (C) 13.0 12.0 14.3 16.7 16.6 18.4 16.4 15.4 17.3 17.8 14.3 16.4 15.7 MEAN DAILY TEMP. (MDT) (C) 5.1 7.5 12.7 18.0 20.7 26.3 29.1 28.2 24.8 18.1 11.7 8.5 17.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.5 24.5 158.5 251.6 223.2 113.8 4.1 0.0 0.0 777.2 HEATING DEG. DAYS(BASE 18 0C) 400.8 293.9 163.5 35.6 4.8 0.0 0.0 0.0 0.0 30.9 190.2 293.7 1413.3 DEWPOINT (MEAN C) -3.7 -3.1 -0.1 0.1 -1.1 1.0 4.7 4.5 2.1 -1.4 -0.7 -4.7 -0.2 MIXING RATIO (G/KG) 3.72 4.01 4.97 4.85 4.54 5.20 6.83 6.82 5.63 4.28 4.69 3.39 4.91 VAPOUR PRESSURE (HPA) 4.91 5.28 6.54 6.40 5.98 6.80 8.91 8.90 7.39 5.66 6.20 4.50 6.46 SATURATION DEF. (HPA) 4.29 5.39 9.18 16.53 21.22 32.47 34.92 31.77 27.50 16.97 8.16 7.28 17.97 RELATIVE HUMIDITY (MEAN %) 57 53 46 32 25 19 23 24 23 28 48 43 35 RELATIVE HUMIDITY (MAX. %) 81 75 71 54 42 32 36 38 38 42 69 65 54 RELATIVE HUMIDITY (MIN. %) 34 30 26 17 12 11 13 14 13 17 29 23 20 RELATIVE HUMIDITY (MEAN% 03UTC) 79 72 69 51 39 30 33 35 37 42 64 63 51 RELATIVE HUMIDITY (MEAN% 09UTC) 42 38 30 20 15 13 14 16 15 19 34 29 24 RELATIVE HUMIDITY (MEAN% 15UTC) 47 40 34 23 18 13 16 17 17 23 44 37 27 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 19.6 33.0 2.1 2.0 2.4 0.0 0.2 3.0 0.0 0.0 34.6 7.0 103.9 DAYS WITH PRECIPITATION >=10 0 2 0 0 0 0 0 0 0 0 2 0 4 DAYS WITH PRECIPITATION >= 5 2 2 0 0 0 0 0 0 0 0 2 1 7 DAYS WITH PRECIPITATION >= 1 5 3 1 1 1 0 0 2 0 0 2 1 16 DAYS WITH PRECIPITATION 6 5 1 1 2 0 1 2 0 0 3 1 22 GREATEST DAILY PRECIPITATION 6.0 19.0 2.1 2.0 2.0 0.0 0.2 2.0 0.0 0.0 17.0 7.0 19.0 DAY 7 26 14 12 26 ** 22 12 ** ** 13 31 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 2 3 DAYS WITH DUST 0 0 0 0 1 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 135 225 225 225 225 270 45 135 135 270 135 135 225 PREVAILING WIND SPEED(KNOTS) 10.6 12.5 12.9 12.4 11.6 9.3 12.6 11.8 10.1 7.8 9.9 10.4 12.2 PREVAILING WIND PERCENT 15.7 19.2 21.8 16.7 12.1 7.5 14.9 9.7 7.5 6.5 12.5 8.1 9.3 CALMS PERCENT OF WIND 63.3 50.4 58.5 55.0 56.0 67.9 52.8 52.4 62.9 70.6 65.8 75.4 61.0 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 177 220 223 237 266 316 23 40 161 324 195 185 230 VECTOR WIND MAGNITUDE(KNOTS) 2.1 2.8 3.2 1.9 2.0 0.8 2.3 1.7 0.7 0.7 1.1 0.9 0.7 WIND STEADINESES (MEAN %) 48.8 48.3 65.3 38.0 40.8 25.0 39.7 29.8 18.4 25.9 31.4 34.6 15.9 WIND SPEED (MEAN KNOTS) 4.3 5.8 4.9 5.0 4.9 3.2 5.8 5.7 3.8 2.7 3.5 2.6 4.4 FASTEST WIND DIRECTION 210 360 210 240 30 360 30 330 230 10 230 210 240 FASTEST WIND SPEED (KNOTS) 33 29 27 39 29 23 23 29 19 19 19 23 39 DAY 23 16 24 4 2 16 9 17 30 11 8 26 DAYS WITH SKY CLEAR (0-2)/8 19 12 14 22 24 29 21 26 28 31 16 20 262 DAYS WITH P.CLOUDY (3-6)/8 8 12 15 6 5 1 10 5 2 0 11 10 85 DAYS WITH CLOUDY (7-8)/8 4 4 2 2 2 0 0 0 0 0 3 1 18 DAYS WITH VISIBILITY =< 2 KM 0 0 0 0 0 0 0 0 0 0 0 0 0 DURATION OF SUNSHINE HOURS 241.3 204.0 253.5 287.7 329.5 370.9 328.5 330.0 306.3 318.3 227.1 243.8 3440.9 ======================================================================================================================= 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 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 826.7 824.6 825.7 827.2 824.8 821.5 820.7 821.9 824.8 829.7 829.3 829.5 825.5 MAX. QFE PRESSURE IN HPA 831.8 830.2 831.0 831.9 829.0 826.7 825.3 826.3 829.1 834.6 834.8 834.5 834.8 DAY-HOUR 9- 6 15- 6 10- 6 14- 6 17- 6 4- 6 19- 6 27- 6 26- 6 12- 6 23- 6 8- 6 MIN. QFE PRESSURE IN HPA 819.6 818.5 818.0 818.9 818.1 814.4 814.7 816.9 819.7 824.2 824.5 825.2 814.4 DAY-HOUR 11- 0 8-12 24-12 30-12 6-12 28-15 5-12 7-12 5-15 4-12 9-12 24-12 MEAN QNH PRESSURE IN HPA 1019.7 1017.2 1018.5 1020.3 1017.4 1013.5 1012.6 1014.0 1017.4 1023.3 1022.8 1023.1 1018.3 MAX. QNH PRESSURE IN HPA 1025.8 1023.9 1024.8 1025.9 1022.4 1019.7 1018.1 1019.2 1022.6 1029.1 1029.3 1029.0 1029.3 DAY-HOUR 9- 6 15- 6 10- 6 14- 6 17- 6 4- 6 19- 6 27- 6 26- 6 12- 6 23- 6 8- 6 MIN. QNH PRESSURE IN HPA 1011.3 1010.0 1009.4 1010.5 1009.5 1005.1 1005.5 1008.1 1011.4 1016.8 1017.1 1017.9 1005.1 DAY-HOUR 11- 0 8-12 24-12 30-12 6-12 28-15 5-12 7-12 5-15 4-12 9-12 24-12 MEAN QFF PRESSURE IN HPA 1018.5 1014.1 1011.4 1009.2 1004.3 996.4 993.9 996.1 1001.4 1012.5 1016.8 1019.5 1007.8 MAX. QFF PRESSURE IN HPA 1028.2 1025.6 1018.1 1019.4 1011.0 1005.5 1000.5 1003.5 1009.5 1020.5 1024.2 1027.9 1028.2 DAY-HOUR 13- 6 15- 6 3- 6 9- 6 8- 3 4- 6 28- 3 19- 6 30- 3 29- 3 28- 3 30- 6 MIN. QFF PRESSURE IN HPA 1005.5 1005.4 999.6 998.7 997.4 987.1 986.4 988.0 993.9 1002.3 1007.5 1010.9 986.4 DAY-HOUR 11- 0 8-12 24-12 30-12 6-12 28-12 5-12 7-12 5-15 4-12 9- 0 24-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 826.4 824.4 825.2 826.9 824.3 821.3 820.6 821.8 824.5 829.5 829.0 829.4 825.3 MAX. QFE PRESSURE IN HPA 830.2 828.1 829.3 829.8 826.9 825.1 823.6 824.3 826.9 832.9 832.5 832.4 832.9 DAY 1 17 11 15 13 17 16 27 30 12 23 7 MIN. QFE PRESSURE IN HPA 819.6 820.2 820.9 820.6 819.1 815.7 816.2 818.5 821.1 825.5 825.2 826.3 815.7 DAY 11 6 2 30 6 28 6 8 16 4 9 24 MEAN QNH PRESSURE IN HPA 1019.4 1016.9 1018.0 1019.9 1016.9 1013.4 1012.5 1013.9 1017.1 1023.0 1022.4 1022.9 1018.0 MAX. QNH PRESSURE IN HPA 1023.9 1021.4 1022.8 1023.4 1020.0 1017.8 1016.0 1016.9 1020.0 1027.1 1026.6 1026.5 1027.1 DAY 1 17 11 15 13 17 16 27 30 12 23 7 MIN. QNH PRESSURE IN HPA 1011.3 1012.0 1012.8 1012.5 1010.7 1006.7 1007.3 1010.0 1013.1 1018.3 1017.9 1019.2 1006.7 DAY 11 6 2 30 6 28 6 8 16 4 9 24 MEAN QFF PRESSURE IN HPA 1017.5 1013.2 1010.5 1008.6 1003.8 996.6 993.7 995.7 1000.8 1011.6 1015.9 1018.3 1007.2 MAX. QFF PRESSURE IN HPA 1025.2 1021.3 1015.4 1015.4 1008.2 1003.3 998.2 1001.0 1006.2 1016.6 1020.7 1024.3 1025.2 DAY 13 17 29 9 10 1 29 19 30 29 14 30 MIN. QFF PRESSURE IN HPA 1005.5 1006.7 1002.6 1000.2 997.4 987.5 988.1 989.6 994.7 1003.8 1007.5 1011.6 987.5 DAY 11 5 24 30 6 28 6 8 5 4 9 24 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 827.1 825.0 826.1 827.9 825.6 822.5 821.6 822.8 825.6 830.6 829.8 829.9 826.2 MAX. QFE PRESSURE IN HPA 831.6 828.9 830.0 831.0 827.9 826.0 824.6 826.0 827.9 833.7 833.3 833.2 833.7 DAY 1 18 10 14 13 4 16 27 26 12 23 8 MIN. QFE PRESSURE IN HPA 821.3 820.6 820.4 821.4 819.9 816.5 817.3 819.4 822.1 826.2 826.5 826.3 816.5 DAY 23 5 24 30 6 28 5 8 5 4 9 24 MEAN QNH PRESSURE IN HPA 1020.2 1017.7 1019.1 1021.2 1018.4 1014.7 1013.7 1015.1 1018.5 1024.3 1023.3 1023.6 1019.1 MAX. QNH PRESSURE IN HPA 1025.5 1022.3 1023.6 1024.8 1021.1 1018.9 1017.2 1018.9 1021.1 1028.0 1027.5 1027.4 1028.0 DAY 1 18 10 14 13 4 16 27 26 12 23 8 MIN. QNH PRESSURE IN HPA 1013.3 1012.5 1012.2 1013.4 1011.7 1007.6 1008.6 1011.1 1014.3 1019.1 1019.5 1019.2 1007.6 DAY 23 5 24 30 6 28 5 8 5 4 9 24 MEAN QFF PRESSURE IN HPA 1020.2 1015.6 1013.1 1011.1 1006.1 998.1 995.7 998.1 1004.0 1015.1 1018.7 1021.7 1009.8 MAX. QFF PRESSURE IN HPA 1027.2 1023.7 1017.4 1017.4 1011.0 1004.3 1000.5 1003.1 1009.5 1020.5 1024.2 1026.6 1027.2 DAY 13 17 4 9 8 4 28 18 30 29 28 28 MIN. QFF PRESSURE IN HPA 1010.4 1008.4 1002.8 1002.1 999.4 989.5 990.3 991.7 996.8 1005.7 1011.4 1013.0 989.5 DAY 23 5 24 30 6 28 5 9 5 4 9 24 ======================================================================================================================= 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 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 828.2 826.1 827.1 828.9 826.3 823.0 822.1 823.4 826.5 831.6 830.9 831.2 827.1 MAX. QFE PRESSURE IN HPA 831.8 830.2 831.0 831.9 829.0 826.7 825.3 826.3 829.1 834.6 834.8 834.5 834.8 DAY 9 15 10 14 17 4 19 27 26 12 23 8 MIN. QFE PRESSURE IN HPA 821.3 821.2 820.6 821.9 820.7 817.1 817.9 819.9 823.0 826.9 827.5 828.1 817.1 DAY 23 5 24 30 6 28 5 8 5 4 9 24 MEAN QNH PRESSURE IN HPA 1021.5 1019.0 1020.2 1022.3 1019.3 1015.4 1014.3 1015.9 1019.5 1025.5 1024.7 1025.1 1020.2 MAX. QNH PRESSURE IN HPA 1025.8 1023.9 1024.8 1025.9 1022.4 1019.7 1018.1 1019.2 1022.6 1029.1 1029.3 1029.0 1029.3 DAY 9 15 10 14 17 4 19 27 26 12 23 8 MIN. QNH PRESSURE IN HPA 1013.3 1013.2 1012.5 1014.0 1012.6 1008.3 1009.3 1011.7 1015.3 1020.0 1020.7 1021.4 1008.3 DAY 23 5 24 30 6 28 5 8 5 4 9 24 MEAN QFF PRESSURE IN HPA 1020.6 1016.3 1013.0 1011.0 1006.0 998.1 995.2 997.8 1003.1 1014.5 1018.5 1021.8 1009.7 MAX. QFF PRESSURE IN HPA 1028.2 1025.6 1018.1 1019.4 1010.6 1005.5 999.7 1003.5 1008.2 1020.0 1024.2 1027.9 1028.2 DAY 13 15 3 9 8 4 29 19 29 31 26 30 MIN. QFF PRESSURE IN HPA 1009.3 1008.5 1002.2 1001.6 999.7 989.4 989.6 991.9 997.5 1005.9 1011.5 1014.2 989.4 DAY 23 5 24 30 6 28 6 9 5 4 9 24 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 826.7 824.8 826.0 827.7 825.1 821.9 820.6 822.0 825.1 829.9 829.4 829.6 825.7 MAX. QFE PRESSURE IN HPA 830.5 829.1 829.8 831.0 827.7 826.0 823.6 825.2 827.7 832.5 833.0 833.4 833.4 DAY 1 15 10 14 16 6 19 27 29 11 23 8 MIN. QFE PRESSURE IN HPA 819.8 820.2 819.5 820.6 819.1 816.2 816.2 818.7 821.8 825.6 825.6 826.6 816.2 DAY 23 7 24 30 6 28 5 7 5 4 9 24 MEAN QNH PRESSURE IN HPA 1019.7 1017.5 1018.9 1020.9 1017.9 1014.0 1012.5 1014.1 1017.8 1023.5 1022.9 1023.2 1018.6 MAX. QNH PRESSURE IN HPA 1024.2 1022.6 1023.4 1024.8 1020.9 1018.9 1016.0 1017.9 1020.9 1026.6 1027.2 1027.7 1027.7 DAY 1 15 10 14 16 6 19 27 29 11 23 8 MIN. QNH PRESSURE IN HPA 1011.5 1012.0 1011.2 1012.5 1010.7 1007.3 1007.3 1010.2 1013.9 1018.4 1018.4 1019.6 1007.3 DAY 23 7 24 30 6 28 5 7 5 4 9 24 MEAN QFF PRESSURE IN HPA 1017.8 1013.8 1011.1 1009.1 1004.2 996.4 993.3 995.5 1000.9 1011.7 1016.0 1018.5 1007.4 MAX. QFF PRESSURE IN HPA 1025.7 1022.1 1015.1 1016.0 1008.3 1003.3 996.7 1000.4 1006.7 1017.3 1021.7 1025.2 1025.7 DAY 13 15 29 9 9 3 28 19 29 29 14 30 MIN. QFF PRESSURE IN HPA 1006.4 1007.2 1000.5 999.9 997.7 987.4 988.2 989.6 995.3 1004.2 1008.8 1011.2 987.4 DAY 23 5 24 30 6 27 5 8 5 4 9 24 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 825.4 823.2 824.3 825.9 823.6 820.4 819.4 820.5 823.3 828.5 828.2 828.2 824.2 MAX. QFE PRESSURE IN HPA 829.6 827.8 827.8 829.6 826.1 824.4 821.9 823.3 825.9 831.3 831.9 832.0 832.0 DAY 9 15 14 14 16 4 15 27 30 11 23 8 MIN. QFE PRESSURE IN HPA 820.4 818.5 818.0 818.9 818.1 814.8 814.7 816.9 820.3 824.2 824.5 825.2 814.7 DAY 23 8 24 30 6 28 5 7 5 4 9 24 MEAN QNH PRESSURE IN HPA 1018.2 1015.6 1016.9 1018.7 1016.0 1012.3 1011.0 1012.3 1015.7 1021.8 1021.5 1021.5 1016.8 MAX. QNH PRESSURE IN HPA 1023.2 1021.0 1021.0 1023.2 1019.0 1017.0 1014.0 1015.7 1018.8 1025.2 1025.9 1026.0 1026.0 DAY 9 15 14 14 16 4 15 27 30 11 23 8 MIN. QNH PRESSURE IN HPA 1012.2 1010.0 1009.4 1010.5 1009.5 1005.6 1005.5 1008.1 1012.1 1016.8 1017.1 1017.9 1005.5 DAY 23 8 24 30 6 28 5 7 5 4 9 24 MEAN QFF PRESSURE IN HPA 1016.2 1011.8 1009.5 1007.4 1002.9 995.4 992.3 994.2 999.6 1010.3 1015.1 1017.1 1006.0 MAX. QFF PRESSURE IN HPA 1023.5 1020.8 1013.8 1013.4