STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 10.0 10.3 14.1 18.9 25.3 26.7 28.8 27.4 25.3 22.7 13.0 10.1 19.4 MINIMUN AIR TEMPERATURE (C) 0.7 1.9 6.7 11.1 17.2 17.5 20.0 17.4 16.1 14.5 4.1 3.6 10.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 5 1 13 8 3 0 0 0 30 DAYS WITH MINIMUM TEMP. <=-4 7 4 0 0 0 0 0 0 0 0 0 0 11 DAYS WITH FREEZING MIN.<= 0 15 8 1 0 0 0 0 0 0 0 6 9 39 TEMPERATURE RECORDS LOWEST(C) -6.0 -10.0 -1.0 3.0 13.0 13.0 15.0 13.0 13.0 8.0 -1.0 -3.0 -10.0 DAY 13 1 10 5 2 1 2 26 10 29 25 29 MAXIMUM AIR TEMPERATURE (C) 16.8 16.3 19.8 26.6 33.2 35.0 36.9 36.7 35.5 32.3 25.0 19.4 27.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 12 22 30 31 31 30 23 0 0 179 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 24.0 26.0 35.0 39.0 38.0 41.0 42.0 39.0 38.0 29.0 24.0 42.0 DAY 20 26 13 29 20 3 9 5 19 3 4 2 DIF. BETWEEN (MAX.-MIN.) (C) 16.1 14.4 13.1 15.5 16.0 17.5 16.9 19.3 19.4 17.8 20.9 15.8 16.9 MEAN DAILY TEMP. (MDT) (C) 8.8 9.1 13.2 18.9 25.2 26.2 28.5 27.0 25.8 23.4 14.6 11.5 19.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 32.5 132.0 157.5 231.0 187.0 144.0 85.5 0.0 0.0 969.5 HEATING DEG. DAYS(BASE 18 0C) 286.5 249.5 148.5 51.0 0.0 0.0 0.0 0.0 0.0 0.0 108.5 201.0 1045.0 DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 5.0 19.1 114.1 33.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14.0 185.2 DAYS WITH PRECIPITATION >=10 0 0 5 1 0 0 0 0 0 0 0 0 6 DAYS WITH PRECIPITATION >= 5 0 2 6 2 0 0 0 0 0 0 0 1 11 DAYS WITH PRECIPITATION >= 1 2 4 10 3 0 0 0 0 0 0 0 3 22 DAYS WITH PRECIPITATION 3 5 15 6 4 0 2 0 0 1 0 3 39 GREATEST DAILY PRECIPITATION 4.0 7.5 36.0 24.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9.0 36.0 DAY 10 6 28 1 ** ** ** ** ** ** ** 25 DAY WITH THUNDER STORM 0 0 1 0 1 0 0 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 4 4 5 4 8 6 8 2 2 0 1 1 45 WIND DIRECTION (PREVAILING) 225 45 225 225 225 45 45 360 45 225 45 225 45 PREVAILING WIND SPEED(KNOTS) 12.3 8.2 10.2 9.9 11.4 7.1 9.8 7.4 7.9 8.2 6.5 9.7 7.4 PREVAILING WIND PERCENT 19.4 22.9 19.4 20.4 20.6 32.1 35.1 28.2 25.4 19.0 23.8 29.0 22.4 CALMS PERCENT OF WIND 9.7 5.7 4.0 4.2 10.1 8.3 6.9 11.7 12.5 8.9 8.3 6.9 8.2 NO. OF WIND OBSERVATION 155 140 175 240 248 240 248 248 240 248 240 248 2670 VECTOR WIND DIRECTION (MEAN) 184 192 200 278 236 26 35 12 30 192 136 195 40 VECTOR WIND MAGNITUDE(KNOTS) 1.4 1.7 1.2 1.4 1.1 3.1 4.0 2.9 2.9 1.0 0.7 2.8 0.3 WIND STEADINESES (MEAN %) 17.5 18.5 16.4 19.4 14.9 50.0 50.0 51.8 56.9 17.5 12.1 35.9 4.3 WIND SPEED (MEAN KNOTS) 8.0 9.2 7.3 7.2 7.4 6.2 8.0 5.6 5.1 5.7 5.8 7.8 6.9 FASTEST WIND DIRECTION 230 230 200 230 230 230 20 50 50 230 230 230 230 FASTEST WIND SPEED (KNOTS) 24 37 20 24 38 24 24 18 18 18 24 24 38 DAY 8 20 6 22 4 5 10 14 16 20 27 20 DAYS WITH SKY CLEAR (0-2)/8 16 14 5 17 10 27 27 28 30 28 23 14 239 DAYS WITH P.CLOUDY (3-6)/8 12 11 18 11 19 2 3 3 0 2 6 13 100 DAYS WITH CLOUDY (7-8)/8 3 3 8 2 2 1 1 0 0 1 1 4 26 DAYS WITH VISIBILITY =< 2 KM 0 2 2 1 1 1 4 0 0 0 0 1 12 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 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 0900 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 1200 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 ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 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 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 ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.6 11.9 16.6 22.0 25.4 29.0 29.5 26.9 22.5 16.9 12.4 8.1 19.0 MINIMUN AIR TEMPERATURE (C) 0.3 5.0 9.3 14.5 16.6 19.4 19.4 16.7 11.9 5.6 2.9 -0.3 10.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 2 2 12 8 3 0 0 0 0 27 DAYS WITH MINIMUM TEMP. <=-4 6 0 0 0 0 0 0 0 0 0 0 6 12 DAYS WITH FREEZING MIN.<= 0 17 6 1 0 0 0 0 0 0 1 10 20 55 TEMPERATURE RECORDS LOWEST(C) -8.0 -3.0 -1.0 7.0 12.0 14.0 16.0 13.0 9.0 -1.0 -2.0 -6.0 -8.0 DAY 2 16 7 4 13 6 4 30 14 23 18 19 MAXIMUM AIR TEMPERATURE (C) 13.8 19.4 24.8 29.7 33.4 37.8 37.8 36.3 32.6 28.5 23.0 17.9 27.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 2 18 27 29 31 31 29 10 0 0 177 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 26.0 31.0 34.0 37.0 42.0 41.0 39.0 36.0 32.0 29.0 23.0 42.0 DAY 24 22 23 10 24 16 12 7 1 2 5 4 DIF. BETWEEN (MAX.-MIN.) (C) 13.5 14.4 15.5 15.2 16.8 18.4 18.4 19.6 20.7 22.9 20.1 18.2 17.8 MEAN DAILY TEMP. (MDT) (C) 7.0 12.2 17.0 22.1 25.0 28.6 28.6 26.5 22.3 17.0 13.0 8.8 19.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 4.5 54.0 125.0 219.0 236.5 170.0 40.5 0.0 0.0 0.0 849.5 HEATING DEG. DAYS(BASE 18 0C) 339.5 169.5 61.5 6.0 0.0 0.0 0.0 0.0 0.0 40.0 151.0 284.5 1052.0 DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 30.0 35.0 33.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.3 107.3 DAYS WITH PRECIPITATION >=10 1 2 2 0 0 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 5 2 2 2 0 0 0 0 0 0 0 0 1 7 DAYS WITH PRECIPITATION >= 1 5 3 2 1 0 0 0 0 0 0 0 1 12 DAYS WITH PRECIPITATION 7 3 2 2 3 0 0 0 0 0 0 2 19 GREATEST DAILY PRECIPITATION 14.0 18.0 20.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.3 20.0 DAY 6 2 3 15 ** ** ** ** ** ** ** 29 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 3 7 5 7 0 0 3 3 0 0 0 0 28 WIND DIRECTION (PREVAILING) 135 225 225 225 45 45 45 45 45 45 225 225 45 PREVAILING WIND SPEED(KNOTS) 8.3 12.2 14.9 10.9 6.4 7.2 7.4 7.1 7.8 6.6 6.7 6.0 7.0 PREVAILING WIND PERCENT 21.4 32.3 32.7 31.3 27.4 43.8 45.6 36.7 31.3 27.4 20.4 15.7 26.2 CALMS PERCENT OF WIND 3.2 7.8 5.6 10.4 10.5 10.8 11.3 7.7 10.8 14.1 10.4 21.8 10.4 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 168 216 227 194 229 44 32 14 40 8 213 118 60 VECTOR WIND MAGNITUDE(KNOTS) 1.6 3.5 4.0 2.7 0.4 3.0 3.0 2.6 2.8 1.4 0.4 0.2 0.1 WIND STEADINESES (MEAN %) 20.0 43.2 41.7 37.5 6.3 49.2 46.2 41.3 46.7 28.0 7.5 4.3 1.5 WIND SPEED (MEAN KNOTS) 8.0 8.1 9.6 7.2 6.4 6.1 6.5 6.3 6.0 5.0 5.3 4.6 6.6 FASTEST WIND DIRECTION 230 200 230 230 230 130 310 20 360 20 130 200 230 FASTEST WIND SPEED (KNOTS) 44 31 34 24 20 18 24 24 18 16 16 18 44 DAY 12 23 3 24 7 3 7 26 9 4 27 15 DAYS WITH SKY CLEAR (0-2)/8 13 17 18 14 22 25 30 27 30 31 23 19 269 DAYS WITH P.CLOUDY (3-6)/8 12 8 9 14 8 5 1 4 0 0 6 9 76 DAYS WITH CLOUDY (7-8)/8 6 4 4 2 1 0 0 0 0 0 1 3 21 DAYS WITH VISIBILITY =< 2 KM 3 3 2 0 0 0 1 0 0 1 0 0 10 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 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 0900 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 1200 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 ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 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 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 ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.8 14.0 16.6 20.7 25.5 29.3 30.7 27.9 24.0 17.9 14.1 10.7 20.0 MINIMUN AIR TEMPERATURE (C) 0.8 7.2 9.6 11.7 17.5 19.3 20.0 16.6 12.6 7.9 5.3 3.6 11.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 1 2 13 13 3 0 0 0 0 32 DAYS WITH MINIMUM TEMP. <=-4 10 0 0 0 0 0 0 0 0 0 0 2 12 DAYS WITH FREEZING MIN.<= 0 17 6 3 0 0 0 0 0 0 0 2 8 36 TEMPERATURE RECORDS LOWEST(C) -7.0 -1.0 -1.0 7.0 14.0 13.0 16.0 12.0 8.0 2.0 -2.0 -6.0 -7.0 DAY 4 5 27 2 26 2 15 24 29 28 10 25 MAXIMUM AIR TEMPERATURE (C) 18.6 21.3 23.9 28.8 32.6 37.4 39.1 37.1 34.6 29.3 24.8 20.0 29.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 12 28 28 31 31 30 18 4 0 182 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 24.0 28.0 29.0 36.0 36.0 43.0 42.0 41.0 38.0 34.0 31.0 28.0 43.0 DAY 9 20 2 25 4 15 7 2 13 10 2 4 DIF. BETWEEN (MAX.-MIN.) (C) 17.8 14.1 14.3 17.1 15.1 18.1 19.1 20.5 22.0 21.4 19.5 16.4 18.0 MEAN DAILY TEMP. (MDT) (C) 9.7 14.3 16.8 20.3 25.1 28.3 29.5 26.9 23.6 18.6 15.1 11.8 20.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 4.0 42.0 127.0 220.5 264.5 182.0 79.0 2.0 1.0 0.0 922.0 HEATING DEG. DAYS(BASE 18 0C) 258.5 112.5 72.0 16.0 0.0 0.0 0.0 0.0 0.0 26.0 96.0 192.0 773.0 DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** -2.4 ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 3.97 ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 5.48 ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 8.22 ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** *** *** *** 44 *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** *** *** *** *** *** *** *** 63 *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** *** *** *** *** *** *** *** 25 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** *** *** *** 58 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** *** *** *** *** *** *** *** 28 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** *** *** *** 44 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 3.0 6.7 20.0 40.5 28.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 99.2 DAYS WITH PRECIPITATION >=10 0 0 1 3 1 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 5 0 1 1 3 1 0 0 0 0 0 0 0 6 DAYS WITH PRECIPITATION >= 1 2 1 1 3 6 0 0 0 0 0 0 1 14 DAYS WITH PRECIPITATION 2 3 2 3 7 1 0 0 0 0 0 3 21 GREATEST DAILY PRECIPITATION 2.0 6.0 20.0 15.0 20.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 20.0 DAY 14 9 22 10 25 ** ** ** ** ** ** 8 DAY WITH THUNDER STORM 0 1 0 0 4 1 0 0 0 0 0 0 6 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 3 6 10 0 1 2 3 5 5 1 1 3 40 WIND DIRECTION (PREVAILING) 225 225 225 360 360 360 360 360 360 360 225 225 360 PREVAILING WIND SPEED(KNOTS) 9.6 11.9 17.6 5.3 6.9 7.8 8.0 5.3 6.4 4.5 8.0 10.5 5.8 PREVAILING WIND PERCENT 25.0 36.6 42.3 21.7 21.4 29.6 26.6 27.4 25.4 21.4 15.0 21.8 19.5 CALMS PERCENT OF WIND 19.0 15.2 16.9 35.4 35.5 36.7 25.4 23.4 27.1 34.3 28.8 18.1 26.3 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 231 222 235 308 345 13 11 1 10 5 240 221 287 VECTOR WIND MAGNITUDE(KNOTS) 2.1 4.5 6.9 0.9 1.3 3.1 3.3 2.6 2.3 1.1 0.7 2.2 1.0 WIND STEADINESES (MEAN %) 34.4 59.2 72.6 25.0 31.7 73.8 70.2 65.0 67.6 45.8 21.2 46.8 20.8 WIND SPEED (MEAN KNOTS) 6.1 7.6 9.5 3.6 4.1 4.2 4.7 4.0 3.4 2.4 3.3 4.7 4.8 FASTEST WIND DIRECTION 230 230 230 230 230 360 360 310 360 360 230 230 230 FASTEST WIND SPEED (KNOTS) 24 33 36 26 22 20 30 24 18 18 24 30 36 DAY 12 21 15 28 3 21 20 8 15 1 23 21 DAYS WITH SKY CLEAR (0-2)/8 22 10 17 11 19 26 27 30 30 31 18 12 253 DAYS WITH P.CLOUDY (3-6)/8 8 13 9 15 12 4 4 1 0 0 9 15 90 DAYS WITH CLOUDY (7-8)/8 1 5 5 4 0 0 0 0 0 0 3 4 22 DAYS WITH VISIBILITY =< 2 KM 0 2 4 0 0 0 2 5 1 0 0 1 15 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 866.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 871.0 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 8- 6 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 859.1 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 22-12 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.5 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 8- 6 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1012.9 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 22-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1018.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.8 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 26- 3 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1008.0 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 21-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 866.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 869.7 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 860.9 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.0 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1015.0 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1018.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.1 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 26 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1009.3 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 866.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 870.2 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 860.9 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.6 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1015.0 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.8 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 26 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.1 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 867.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 871.0 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 862.9 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 21 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1022.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.5 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.3 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 21 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.3 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 25 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1011.4 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 21 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 865.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 869.3 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 861.4 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.7 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.6 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1015.6 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.4 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 25 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.2 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 865.0 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 870.0 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 859.1 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1019.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.4 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1012.9 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1016.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.4 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1008.0 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 865.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 869.1 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 7 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 861.4 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.4 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 7 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1015.6 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 22 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1019.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.2 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 25 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1011.2 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 21 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 866.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 869.8 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 7 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 861.6 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 21 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.3 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.2 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 7 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1015.8 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 21 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1018.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.7 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 25 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1011.0 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 21 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 866.6 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 870.2 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 7 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 861.1 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 21 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.5 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.6 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 7 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1015.2 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 21 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.3 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 25 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1009.4 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 9.1 10.5 15.0 21.9 25.9 28.1 29.3 26.6 22.5 16.9 12.8 9.1 19.0 MINIMUN AIR TEMPERATURE (C) 1.9 4.8 8.0 13.5 16.2 18.5 20.1 16.9 12.6 7.9 6.1 0.6 10.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 3 5 15 1 0 0 0 0 24 DAYS WITH MINIMUM TEMP. <=-4 5 0 1 0 0 0 0 0 0 0 0 2 8 DAYS WITH FREEZING MIN.<= 0 14 7 4 0 0 0 0 0 0 0 1 17 43 TEMPERATURE RECORDS LOWEST(C) -7.0 -3.0 -4.0 3.0 12.0 14.0 17.0 13.0 6.0 5.0 0.0 -6.0 -7.0 DAY 19 4 4 1 2 15 1 24 25 15 28 18 MAXIMUM AIR TEMPERATURE (C) 18.4 17.5 23.3 30.0 34.7 36.3 37.2 35.3 32.6 27.1 21.8 20.5 27.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 4 14 31 30 31 31 28 7 0 0 176 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 26.0 25.0 31.0 38.0 41.0 40.0 40.0 38.0 37.0 31.0 29.0 26.0 41.0 DAY 14 21 19 28 30 3 25 11 3 5 2 20 DIF. BETWEEN (MAX.-MIN.) (C) 16.5 12.7 15.3 16.5 18.5 17.8 17.1 18.4 20.0 19.2 15.7 19.9 17.3 MEAN DAILY TEMP. (MDT) (C) 10.2 11.2 15.6 21.7 25.4 27.4 28.7 26.1 22.6 17.5 13.9 10.6 19.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 5.5 42.0 137.5 192.5 237.5 157.5 64.5 0.0 0.0 0.0 837.0 HEATING DEG. DAYS(BASE 18 0C) 243.0 191.0 104.0 4.5 0.0 0.0 0.0 0.0 0.0 29.5 123.0 230.0 925.0 DEWPOINT (MEAN C) -3.2 0.9 -0.0 1.2 3.3 2.3 4.1 2.1 -1.8 -1.2 2.2 -3.7 0.5 MIXING RATIO (G/KG) 3.74 4.99 4.70 5.13 5.74 5.45 6.17 5.34 4.05 4.13 5.29 3.55 4.86 VAPOUR PRESSURE (HPA) 5.15 6.85 6.48 7.04 7.86 7.43 8.40 7.29 5.56 5.71 7.31 4.92 6.67 SATURATION DEF. (HPA) 7.42 6.46 12.08 20.83 27.67 32.24 34.28 29.55 24.08 15.06 8.47 7.73 18.82 RELATIVE HUMIDITY (MEAN %) 47 56 40 29 26 21 22 23 22 32 52 44 35 RELATIVE HUMIDITY (MAX. %) 71 79 63 49 42 34 34 36 36 49 72 65 53 RELATIVE HUMIDITY (MIN. %) 24 34 21 15 14 12 13 12 11 17 31 24 19 RELATIVE HUMIDITY (MEAN% 03UTC) 64 74 58 42 35 26 30 35 34 45 68 61 48 RELATIVE HUMIDITY (MEAN% 09UTC) 27 40 23 17 16 14 14 13 11 18 34 26 21 RELATIVE HUMIDITY (MEAN% 15UTC) 48 49 37 23 20 16 16 17 17 29 49 42 30 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 11.1 79.1 0.5 16.0 2.0 0.0 1.0 0.0 0.0 0.0 1.0 0.0 110.7 DAYS WITH PRECIPITATION >=10 0 3 0 0 0 0 0 0 0 0 0 0 3 DAYS WITH PRECIPITATION >= 5 1 3 0 2 0 0 0 0 0 0 0 0 6 DAYS WITH PRECIPITATION >= 1 2 4 0 2 1 0 1 0 0 0 1 0 11 DAYS WITH PRECIPITATION 4 8 3 2 1 0 1 0 0 0 1 0 20 GREATEST DAILY PRECIPITATION 7.0 46.0 0.5 8.0 2.0 0.0 1.0 0.0 0.0 0.0 1.0 0.0 46.0 DAY 5 11 9 21 9 ** 13 ** ** ** 22 ** DAY WITH THUNDER STORM 2 1 0 3 1 0 0 0 0 0 0 1 8 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 3 3 6 1 0 0 1 5 2 0 1 0 22 WIND DIRECTION (PREVAILING) 225 225 225 225 45 45 45 360 360 315 360 360 360 PREVAILING WIND SPEED(KNOTS) 10.3 11.8 9.9 12.2 5.9 7.1 7.6 4.7 5.3 5.2 4.3 3.6 4.8 PREVAILING WIND PERCENT 24.6 26.8 24.2 33.3 27.0 45.0 34.7 23.4 24.2 19.4 17.9 16.5 19.2 CALMS PERCENT OF WIND 21.4 10.7 11.3 13.8 19.8 15.4 17.7 19.4 15.8 21.4 17.1 14.9 16.6 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 228 219 241 235 17 34 23 349 3 342 355 306 332 VECTOR WIND MAGNITUDE(KNOTS) 2.1 2.7 2.2 3.7 1.7 4.1 4.0 3.0 2.3 1.5 0.9 0.5 0.9 WIND STEADINESES (MEAN %) 43.7 42.2 40.0 55.2 43.6 82.0 74.1 65.2 63.9 50.0 30.0 16.7 19.6 WIND SPEED (MEAN KNOTS) 4.8 6.4 5.5 6.7 3.9 5.0 5.4 4.6 3.6 3.0 3.0 3.0 4.6 FASTEST WIND DIRECTION 230 180 230 230 300 360 20 310 360 310 310 310 230 FASTEST WIND SPEED (KNOTS) 24 30 24 37 20 18 30 24 24 24 13 18 37 DAY 4 9 15 12 12 11 20 1 13 25 5 15 DAYS WITH SKY CLEAR (0-2)/8 19 10 14 17 22 23 25 29 30 25 13 22 249 DAYS WITH P.CLOUDY (3-6)/8 10 11 15 12 7 7 6 2 0 6 10 5 91 DAYS WITH CLOUDY (7-8)/8 2 7 2 1 2 0 0 0 0 0 7 4 25 DAYS WITH VISIBILITY =< 2 KM 1 4 0 2 0 0 0 1 0 0 0 0 8 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 862.1 862.1 864.2 861.0 860.0 856.8 855.2 857.0 860.1 865.9 867.3 867.1 861.6 MAX. QFE PRESSURE IN HPA 867.2 870.3 871.9 867.1 884.7 885.0 859.0 863.4 864.0 870.8 872.1 875.1 885.0 DAY-HOUR 1- 0 3-21 3- 6 27- 6 28-12 27-15 13- 6 29- 6 27- 6 12- 6 14- 6 16- 6 MIN. QFE PRESSURE IN HPA 855.3 851.7 853.8 855.1 854.1 852.4 850.8 851.7 856.6 859.6 863.0 860.3 850.8 DAY-HOUR 5-12 16-15 20- 0 12- 9 8- 0 5-12 1- 0 8-15 3-12 1-12 3-12 7-12 MEAN QNH PRESSURE IN HPA 1016.3 1016.3 1018.8 1015.1 1013.9 1010.3 1008.5 1010.6 1014.1 1020.6 1022.3 1022.1 1015.7 MAX. QNH PRESSURE IN HPA 1022.2 1025.7 1027.6 1022.1 1042.2 1042.5 1012.8 1017.8 1018.5 1026.3 1027.8 1031.2 1042.5 DAY-HOUR 1- 0 3-21 3- 6 27- 6 28-12 27-15 13- 6 29- 6 27- 6 12- 6 14- 6 16- 6 MIN. QNH PRESSURE IN HPA 1008.6 1004.5 1006.9 1008.4 1007.2 1005.3 1003.4 1004.5 1010.1 1013.5 1017.4 1014.3 1003.4 DAY-HOUR 5-12 16-15 20- 0 12- 9 8- 0 5-12 1- 0 8-15 3-12 1-12 3-12 7-12 MEAN QFF PRESSURE IN HPA 1014.4 1013.5 1013.5 1005.9 1002.6 997.8 995.4 998.9 1004.6 1014.4 1018.2 1020.3 1008.3 MAX. QFF PRESSURE IN HPA 1027.0 1026.3 1026.9 1014.1 1029.9 1031.4 1001.8 1006.6 1012.3 1021.5 1025.5 1031.3 1031.4 DAY-HOUR 20- 3 4- 3 4- 6 1- 3 28-12 27-15 13- 6 29- 3 28- 3 16- 3 29- 6 16- 6 MIN. QFF PRESSURE IN HPA 1004.4 1000.5 997.3 998.8 996.2 992.9 990.9 992.8 998.2 1005.6 1010.2 1009.8 990.9 DAY-HOUR 5-12 16-15 20- 0 12- 0 27-12 5-12 27-12 10-12 1-12 1-12 3-12 7-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 862.3 862.1 863.8 860.5 860.2 857.1 855.6 857.3 860.1 865.8 867.1 867.2 861.6 MAX. QFE PRESSURE IN HPA 867.2 869.4 869.4 864.8 870.7 860.4 858.6 860.9 862.8 869.0 869.8 874.0 874.0 DAY 1 4 4 24 21 22 30 29 21 12 9 16 MIN. QFE PRESSURE IN HPA 856.1 856.2 853.8 855.6 854.1 855.0 850.8 853.0 858.0 860.5 863.4 862.8 850.8 DAY 6 25 20 12 8 9 1 9 4 1 3 26 MEAN QNH PRESSURE IN HPA 1016.6 1016.3 1018.3 1014.6 1014.2 1010.6 1008.9 1010.8 1014.1 1020.5 1022.1 1022.1 1015.8 MAX. QNH PRESSURE IN HPA 1022.2 1024.7 1024.7 1019.4 1026.2 1014.4 1012.4 1015.0 1017.2 1024.2 1025.2 1030.0 1030.0 DAY 1 4 4 24 21 22 30 29 21 12 9 16 MIN. QNH PRESSURE IN HPA 1009.5 1009.6 1006.9 1008.9 1007.2 1008.2 1003.4 1006.0 1011.7 1014.5 1017.8 1017.2 1003.4 DAY 6 25 20 12 8 9 1 9 4 1 3 26 MEAN QFF PRESSURE IN HPA 1014.3 1013.2 1012.9 1005.5 1003.2 998.3 995.8 999.2 1004.6 1014.1 1017.9 1020.1 1008.3 MAX. QFF PRESSURE IN HPA 1023.7 1025.4 1025.0 1012.2 1015.4 1002.0 999.4 1004.2 1009.4 1018.5 1022.5 1029.5 1029.5 DAY 20 4 4 23 21 22 15 28 28 12 9 16 MIN. QFF PRESSURE IN HPA 1006.1 1004.2 997.3 998.8 997.1 995.6 991.1 993.9 999.9 1006.3 1011.0 1013.5 991.1 DAY 29 25 20 12 8 4 1 9 4 1 3 26 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 862.3 861.9 864.6 861.4 860.6 857.7 856.0 857.9 860.7 866.5 867.8 867.6 862.1 MAX. QFE PRESSURE IN HPA 867.0 868.6 869.7 866.2 863.9 866.5 858.3 861.9 863.3 869.9 870.6 874.1 874.1 DAY 2 4 3 27 1 11 24 30 28 12 14 16 MIN. QFE PRESSURE IN HPA 856.4 855.2 855.6 856.1 857.3 855.4 854.0 854.2 858.3 861.8 864.9 863.2 854.0 DAY 6 25 29 12 28 10 2 6 4 1 6 7 MEAN QNH PRESSURE IN HPA 1016.6 1016.1 1019.2 1015.6 1014.7 1011.4 1009.4 1011.6 1014.7 1021.3 1022.9 1022.7 1016.3 MAX. QNH PRESSURE IN HPA 1022.0 1023.8 1025.0 1021.0 1018.4 1021.4 1012.0 1016.1 1017.7 1025.3 1026.1 1030.1 1030.1 DAY 2 4 3 27 1 11 24 30 28 12 14 16 MIN. QNH PRESSURE IN HPA 1009.8 1008.5 1008.9 1009.5 1010.9 1008.7 1007.1 1007.3 1012.0 1016.0 1019.6 1017.6 1007.1 DAY 6 25 29 12 28 10 2 6 4 1 6 7 MEAN QFF PRESSURE IN HPA 1016.2 1014.3 1015.4 1007.6 1004.2 999.6 997.1 1001.2 1007.0 1016.8 1020.2 1022.8 1010.2 MAX. QFF PRESSURE IN HPA 1027.0 1026.3 1026.8 1014.1 1008.2 1010.9 1000.2 1006.6 1012.3 1021.5 1024.0 1031.1 1031.1 DAY 20 4 4 1 1 11 14 29 28 16 28 16 MIN. QFF PRESSURE IN HPA 1008.3 1004.2 1002.2 1000.1 998.6 996.3 994.1 995.8 1002.0 1009.7 1014.0 1015.5 994.1 DAY 5 25 29 12 28 2 2 6 4 1 3 26 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 863.6 863.3 865.7 862.2 861.0 857.7 856.4 858.0 861.3 867.1 868.7 868.6 862.8 MAX. QFE PRESSURE IN HPA 867.2 868.2 871.9 867.1 864.0 862.2 859.0 863.4 864.0 870.8 872.1 875.1 875.1 DAY 20 4 3 27 24 25 13 29 27 12 14 16 MIN. QFE PRESSURE IN HPA 858.4 856.0 856.5 856.0 858.4 854.3 854.3 854.0 859.2 862.4 865.5 863.9 854.0 DAY 6 25 29 12 17 3 8 8 3 1 3 7 MEAN QNH PRESSURE IN HPA 1018.0 1017.7 1020.5 1016.5 1015.1 1011.3 1009.8 1011.7 1015.5 1022.0 1023.9 1023.8 1017.1 MAX. QNH PRESSURE IN HPA 1022.2 1023.3 1027.6 1022.1 1018.5 1016.5 1012.8 1017.8 1018.5 1026.3 1027.8 1031.2 1031.2 DAY 20 4 3 27 24 25 13 29 27 12 14 16 MIN. QNH PRESSURE IN HPA 1012.1 1009.4 1010.0 1009.4 1012.1 1007.4 1007.4 1007.1 1013.0 1016.7 1020.2 1018.4 1007.1 DAY 6 25 29 12 17 3 8 8 3 1 3 7 MEAN QFF PRESSURE IN HPA 1016.1 1014.8 1014.9 1007.0 1003.3 998.5 996.3 999.3 1005.3 1015.1 1019.4 1022.0 1009.3 MAX. QFF PRESSURE IN HPA 1023.5 1023.3 1026.9 1013.6 1006.9 1004.0 1001.8 1006.2 1010.6 1019.9 1025.5 1031.3 1031.3 DAY 20 4 4 23 4 22 13 29 27 15 29 16 MIN. QFF PRESSURE IN HPA 1008.2 1004.5 1002.3 1000.0 998.5 993.0 992.9 993.8 1001.0 1007.5 1011.9 1015.0 992.9 DAY 5 25 29 12 28 3 26 5 1 1 3 7 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 861.4 862.0 864.2 861.0 859.8 856.6 855.2 856.7 859.7 865.2 866.7 866.4 861.2 MAX. QFE PRESSURE IN HPA 865.2 867.8 870.7 865.9 863.1 860.7 857.3 861.7 862.3 868.6 870.0 872.1 872.1 DAY 1 20 3 27 24 25 30 29 27 12 29 16 MIN. QFE PRESSURE IN HPA 856.7 854.1 858.5 855.1 856.6 854.4 853.3 853.4 857.9 860.8 863.7 861.6 853.3 DAY 5 16 29 12 20 5 8 8 3 1 3 7 MEAN QNH PRESSURE IN HPA 1015.6 1016.3 1018.8 1015.1 1013.7 1010.1 1008.4 1010.2 1013.6 1019.9 1021.7 1021.3 1015.4 MAX. QNH PRESSURE IN HPA 1019.9 1022.9 1026.2 1020.7 1017.5 1014.8 1010.9 1015.9 1016.6 1023.8 1025.4 1027.8 1027.8 DAY 1 20 3 27 24 25 30 29 27 12 29 16 MIN. QNH PRESSURE IN HPA 1010.2 1007.2 1012.2 1008.4 1010.1 1007.6 1006.3 1006.4 1011.6 1014.9 1018.2 1015.8 1006.3 DAY 5 16 29 12 20 5 8 8 3 1 3 7 MEAN QFF PRESSURE IN HPA 1012.5 1012.7 1012.6 1005.4 1001.9 997.0 994.8 997.8 1003.3 1012.6 1016.7 1018.1 1007.1 MAX. QFF PRESSURE IN HPA 1019.9 1021.0 1024.9 1011.0 1006.0 1002.0 998.2 1004.2 1008.8 1017.4 1022.8 1027.4 1027.4 DAY 8 3 3 23 24 25 13 29 26 31 29 16 MIN. QFF PRESSURE IN HPA 1005.8 1003.2 1004.6 998.9 996.9 994.6 991.6 993.7 998.6 1006.0 1010.3 1011.0 991.6 DAY 5 16 28 12 27 8 8 10 1 1 3 7 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 860.8 860.8 862.8 859.7 859.8 855.3 853.8 855.5 858.7 864.4 866.0 865.6 860.3 MAX. QFE PRESSURE IN HPA 864.9 866.7 867.8 865.0 884.7 858.2 856.5 860.4 862.0 867.8 868.7 871.1 884.7 DAY 20 3 3 27 28 25 13 29 28 12 29 16 MIN. QFE PRESSURE IN HPA 855.3 851.9 857.0 855.9 855.4 852.4 851.7 852.1 856.6 859.6 863.0 860.3 851.7 DAY 5 16 28 12 27 5 2 8 3 1 3 7 MEAN QNH PRESSURE IN HPA 1014.9 1014.9 1017.1 1013.6 1013.7 1008.5 1006.9 1008.9 1012.5 1019.0 1020.9 1020.4 1014.3 MAX. QNH PRESSURE IN HPA 1019.6 1021.6 1022.9 1019.7 1042.2 1011.9 1010.0 1014.4 1016.2 1022.9 1023.9 1026.6 1042.2 DAY 20 3 3 27 28 25 13 29 28 12 29 16 MIN. QNH PRESSURE IN HPA 1008.6 1004.7 1010.5 1009.3 1008.7 1005.3 1004.5 1004.9 1010.1 1013.5 1017.4 1014.3 1004.5 DAY 5 16 28 12 27 5 2 8 3 1 3 7 MEAN QFF PRESSURE IN HPA 1012.6 1011.6 1011.7 1004.6 1002.7 996.2 993.7 997.2 1003.0 1012.6 1016.6 1018.1 1006.7 MAX. QFF PRESSURE IN HPA 1019.8 1021.5 1022.7 1011.1 1029.9 1000.0 997.4 1003.3 1008.9 1017.5 1022.6 1027.1 1029.9 DAY 19 3 4 23 28 25 13 29 28 12 29 16 MIN. QFF PRESSURE IN HPA 1004.4 1000.8 1002.5 999.4 996.2 992.9 990.9 992.8 998.2 1005.6 1010.2 1009.8 990.9 DAY 5 16 28 12 27 5 27 10 1 1 3 7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 861.9 861.8 863.6 860.2 858.8 856.3 854.0 856.0 859.3 865.3 867.0 866.9 860.9 MAX. QFE PRESSURE IN HPA 865.8 867.9 868.8 864.6 862.9 885.0 855.9 860.6 862.2 868.9 869.7 872.1 885.0 DAY 15 3 3 27 24 27 31 29 28 19 14 15 MIN. QFE PRESSURE IN HPA 856.6 851.7 857.2 856.1 855.0 852.6 852.0 851.7 857.2 860.0 864.0 861.8 851.7 DAY 5 16 28 12 20 5 26 8 3 1 3 7 MEAN QNH PRESSURE IN HPA 1016.1 1016.0 1018.1 1014.2 1012.6 1009.7 1007.1 1009.4 1013.1 1020.0 1022.0 1021.8 1015.0 MAX. QNH PRESSURE IN HPA 1020.6 1023.0 1024.0 1019.2 1017.3 1042.5 1009.3 1014.6 1016.5 1024.1 1025.0 1027.8 1042.5 DAY 15 3 3 27 24 27 31 29 28 19 14 15 MIN. QNH PRESSURE IN HPA 1010.1 1004.5 1010.8 1009.5 1008.2 1005.5 1004.8 1004.5 1010.8 1014.0 1018.5 1016.0 1004.5 DAY 5 16 28 12 20 5 26 8 3 1 3 7 MEAN QFF PRESSURE IN HPA 1015.7 1014.1 1014.2 1006.0 1002.0 998.0 994.7 999.0 1005.4 1015.4 1019.2 1021.8 1008.8 MAX. QFF PRESSURE IN HPA 1024.1 1024.7 1025.8 1010.9 1007.2 1031.4 997.6 1005.2 1011.3 1019.5 1024.0 1029.0 1031.4 DAY 20 3 3 23 24 27 15 29 28 12 29 16 MIN. QFF PRESSURE IN HPA 1007.6 1000.5 1003.4 999.7 996.3 993.9 991.9 993.5 1000.7 1007.6 1012.6 1013.2 991.9 DAY 5 16 28 12 28 5 2 8 4 1 3 7 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 862.3 862.5 864.5 861.4 860.0 856.8 855.5 857.5 860.6 866.4 867.8 867.6 861.9 MAX. QFE PRESSURE IN HPA 866.3 869.4 870.1 865.7 863.3 859.1 858.1 861.2 862.8 869.7 870.2 874.8 874.8 DAY 10 3 3 25 1 25 14 29 22 11 9 15 MIN. QFE PRESSURE IN HPA 856.7 855.0 856.8 857.4 855.9 854.9 852.9 853.7 858.0 862.3 864.8 862.3 852.9 DAY 5 16 28 11 19 9 27 9 3 1 3 7 MEAN QNH PRESSURE IN HPA 1016.6 1016.8 1019.1 1015.5 1013.9 1010.3 1008.8 1011.1 1014.6 1021.3 1022.9 1022.7 1016.1 MAX. QNH PRESSURE IN HPA 1021.2 1024.7 1025.5 1020.5 1017.7 1012.9 1011.8 1015.3 1017.2 1025.0 1025.6 1030.9 1030.9 DAY 10 3 3 25 1 25 14 29 22 11 9 15 MIN. QNH PRESSURE IN HPA 1010.2 1008.2 1010.3 1011.0 1009.3 1008.1 1005.8 1006.8 1011.7 1016.6 1019.4 1016.6 1005.8 DAY 5 16 28 11 19 9 27 9 3 1 3 7 MEAN QFF PRESSURE IN HPA 1014.5 1013.8 1013.5 1005.9 1002.0 997.5 995.3 998.8 1004.4 1014.4 1018.5 1020.9 1008.3 MAX. QFF PRESSURE IN HPA 1022.1 1024.5 1025.2 1010.8 1006.7 1002.0 1000.6 1004.0 1009.4 1018.9 1023.5 1029.0 1029.0 DAY 18 3 3 23 1 22 13 29 24 15 28 15 MIN. QFF PRESSURE IN HPA 1007.4 1004.5 1002.2 1001.1 996.5 994.9 992.3 993.7 999.6 1007.9 1011.1 1011.3 992.3 DAY 4 16 28 18 28 1 26 9 4 1 3 7 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 862.3 862.4 864.6 861.4 859.7 856.8 855.7 857.6 860.4 866.3 867.4 867.3 861.8 MAX. QFE PRESSURE IN HPA 866.4 870.3 869.9 865.4 863.0 859.3 857.9 861.5 862.7 870.0 869.6 874.6 874.6 DAY 10 3 3 27 1 21 14 27 22 12 9 15 MIN. QFE PRESSURE IN HPA 856.3 856.2 856.0 857.3 854.4 854.9 853.1 854.0 858.0 862.4 865.0 861.7 853.1 DAY 5 16 28 9 22 5 7 10 3 1 22 31 MEAN QNH PRESSURE IN HPA 1016.6 1016.7 1019.2 1015.6 1013.7 1010.3 1009.0 1011.2 1014.4 1021.2 1022.5 1022.2 1016.0 MAX. QNH PRESSURE IN HPA 1021.3 1025.7 1025.3 1020.1 1017.4 1013.2 1011.6 1015.7 1017.0 1025.4 1024.9 1030.6 1030.6 DAY 10 3 3 27 1 21 14 27 22 12 9 15 MIN. QNH PRESSURE IN HPA 1009.7 1009.6 1009.4 1010.9 1007.6 1008.1 1006.1 1007.1 1011.7 1016.7 1019.7 1015.9 1006.1 DAY 5 16 28 9 22 5 7 10 3 1 22 31 MEAN QFF PRESSURE IN HPA 1013.5 1013.1 1013.0 1005.6 1001.9 997.2 995.4 998.7 1004.1 1014.0 1017.6 1019.0 1007.8 MAX. QFF PRESSURE IN HPA 1020.8 1026.2 1025.0 1013.1 1007.0 1000.3 999.5 1004.4 1008.5 1018.4 1021.6 1028.7 1028.7 DAY 19 3 3 22 9 21 13 27 27 11 28 15 MIN. QFF PRESSURE IN HPA 1007.2 1005.4 1000.0 1001.0 996.6 994.9 991.9 994.2 999.2 1007.9 1012.3 1010.2 991.9 DAY 5 16 28 18 22 3 7 10 4 1 3 7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.0 10.9 16.1 19.3 ***** 26.8 29.9 28.5 22.9 15.6 13.1 9.2 ***** MINIMUN AIR TEMPERATURE (C) 2.2 3.1 10.1 10.9 ***** 17.9 19.4 18.8 12.1 5.9 3.9 2.3 ***** DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 **** 4 12 17 0 0 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 **** 0 0 0 0 0 0 4 **** DAYS WITH FREEZING MIN.<= 0 11 8 0 0 **** 0 0 0 0 1 3 10 **** TEMPERATURE RECORDS LOWEST(C) -3.0 -2.0 5.0 1.0 ***** 14.0 11.0 11.0 6.0 0.0 0.0 -5.0 ***** DAY 11 3 1 14 ** 4 13 24 23 17 28 22 MAXIMUM AIR TEMPERATURE (C) 14.6 20.1 23.4 27.3 ***** 34.2 37.9 36.8 32.7 25.6 23.2 17.1 ***** DAYS WITH MAXIMUM TEMP. >=30 0 0 2 13 **** 30 31 31 27 2 0 0 **** DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 **** 0 0 0 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C) 20.0 25.0 30.0 33.0 ***** 38.0 42.0 41.0 37.0 31.0 28.0 22.0 ***** DAY 1 16 6 29 ** 10 22 6 10 2 1 27 DIF. BETWEEN (MAX.-MIN.) (C) 12.4 17.0 13.3 16.4 ***** 16.3 18.5 18.0 20.6 19.7 19.3 14.8 ***** MEAN DAILY TEMP. (MDT) (C) 8.4 11.6 16.8 19.1 ***** 26.1 28.6 27.8 22.4 15.8 13.5 9.7 ***** COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.5 20.5 ****** 152.5 237.0 211.0 59.5 1.0 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C) 297.5 179.0 57.5 35.5 ****** 0.0 0.0 0.0 1.0 77.5 134.0 257.5 ****** DEWPOINT (MEAN C) 1.1 -3.6 2.0 -0.5 ***** 3.7 -0.5 -0.8 -3.9 -7.5 -4.5 -1.8 ***** MIXING RATIO (G/KG) 4.90 3.55 5.35 4.46 ****** 6.02 4.56 4.52 3.60 2.65 3.29 4.19 ****** VAPOUR PRESSURE (HPA) 6.78 4.90 7.34 6.14 ****** 8.22 6.21 6.16 4.94 3.66 4.56 5.78 ****** SATURATION DEF. (HPA) 3.63 9.33 11.84 17.92 ****** 28.49 37.92 35.28 25.37 15.84 11.88 6.61 ****** RELATIVE HUMIDITY (MEAN %) 70 42 43 29 *** 24 16 17 19 23 33 51 *** RELATIVE HUMIDITY (MAX. %) 87 67 62 47 *** 36 25 28 33 38 54 74 *** RELATIVE HUMIDITY (MIN. %) 46 19 24 16 *** 15 7 8 9 10 15 29 *** RELATIVE HUMIDITY (MEAN% 03UTC) 84 63 57 42 *** 31 20 24 29 35 49 70 *** RELATIVE HUMIDITY (MEAN% 09UTC) 50 22 29 17 *** 18 10 10 11 12 17 31 *** RELATIVE HUMIDITY (MEAN% 15UTC) 69 35 39 25 *** 20 11 12 13 16 24 47 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 36.0 0.0 19.0 0.0 ****** 0.0 0.0 0.0 0.0 0.0 0.4 26.0 ****** DAYS WITH PRECIPITATION >=10 1 0 1 0 **** 0 0 0 0 0 0 2 **** DAYS WITH PRECIPITATION >= 5 3 0 2 0 **** 0 0 0 0 0 0 2 **** DAYS WITH PRECIPITATION >= 1 6 0 3 0 **** 0 0 0 0 0 0 4 **** DAYS WITH PRECIPITATION 7 0 5 0 **** 0 0 0 0 0 1 4 **** GREATEST DAILY PRECIPITATION 14.0 0.0 12.0 0.0 ****** 0.0 0.0 0.0 0.0 0.0 0.4 13.0 ****** DAY 19 ** 13 ** ** ** ** ** ** ** 5 13 DAY WITH THUNDER STORM 0 0 0 0 **** 0 0 0 0 0 0 2 **** DAYS WITH SNOW OR SLEET 1 0 0 0 **** 0 0 0 0 0 0 0 **** DAYS WITH DUST 0 1 5 1 **** 1 3 0 0 0 0 3 **** WIND DIRECTION (PREVAILING) 360 360 180 360 *** 360 360 360 360 360 360 180 *** PREVAILING WIND SPEED(KNOTS) 4.5 4.4 13.1 6.4 **** 6.4 12.7 10.5 9.6 7.2 6.3 12.6 **** PREVAILING WIND PERCENT 18.1 20.1 21.8 22.9 ***** 31.7 45.6 33.5 40.8 36.7 25.0 40.3 ***** CALMS PERCENT OF WIND 18.5 14.3 6.9 7.1 ***** 9.6 2.0 5.6 11.7 17.7 18.8 6.0 ***** NO. OF WIND OBSERVATION 248 224 248 240 **** 240 248 248 240 248 240 248 2672 VECTOR WIND DIRECTION (MEAN) 31 210 206 313 *** 9 7 10 353 348 70 174 *** VECTOR WIND MAGNITUDE(KNOTS) 0.8 0.2 4.8 1.7 **** 3.9 5.0 3.0 3.8 2.6 0.9 4.6 **** WIND STEADINESES (MEAN %) 22.9 3.9 48.5 25.8 ***** 69.6 48.5 35.7 59.4 53.1 20.5 48.9 ***** WIND SPEED (MEAN KNOTS) 3.5 5.1 9.9 6.6 **** 5.6 10.3 8.4 6.4 4.9 4.4 9.4 **** FASTEST WIND DIRECTION 230 220 220 220 *** 310 360 50 360 310 360 200 *** FASTEST WIND SPEED (KNOTS) 24 30 37 37 *** 24 30 24 24 27 24 35 *** DAY 27 24 9 10 ** 1 20 10 8 15 5 8 DAYS WITH SKY CLEAR (0-2)/8 11 23 10 16 **** 26 28 25 30 26 26 17 **** DAYS WITH P.CLOUDY (3-6)/8 10 5 11 14 **** 4 3 6 0 5 4 9 **** DAYS WITH CLOUDY (7-8)/8 10 0 10 0 **** 0 0 0 0 0 0 5 **** DAYS WITH VISIBILITY =< 2 KM 4 0 1 1 **** 0 0 1 0 0 0 2 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 866.8 863.1 861.7 863.1 ****** 857.6 854.5 855.4 860.4 865.0 866.1 864.5 ****** MAX. QFE PRESSURE IN HPA 872.7 869.2 867.0 869.3 ****** 881.8 866.7 863.8 867.4 869.8 871.1 872.1 ****** DAY-HOUR 11- 6 14-18 16- 6 2- 6 **-** 3- 0 1- 3 11-15 20- 6 18- 6 29- 6 2- 6 MIN. QFE PRESSURE IN HPA 860.7 857.0 856.2 853.9 ****** 852.3 850.8 850.1 852.8 859.1 860.0 853.0 ****** DAY-HOUR 27-12 23-12 4-12 10-15 **-** 11-12 29-15 6-12 1-12 8-12 4-18 29-12 MEAN QNH PRESSURE IN HPA 1021.7 1017.5 1015.9 1017.5 ****** 1011.2 1007.7 1008.7 1014.4 1019.7 1020.9 1019.1 ****** MAX. QNH PRESSURE IN HPA 1028.5 1024.5 1022.0 1024.6 ****** 1038.9 1021.6 1018.3 1022.4 1025.2 1026.6 1027.8 ****** DAY-HOUR 11- 6 14-18 16- 6 2- 6 **-** 3- 0 1- 3 11-15 20- 6 18- 6 29- 6 2- 6 MIN. QNH PRESSURE IN HPA 1014.8 1010.5 1009.6 1007.0 ****** 1005.2 1003.4 1002.6 1005.7 1012.9 1014.0 1006.0 ****** DAY-HOUR 27-12 23-12 4-12 10-15 **-** 11-12 29-15 6-12 1-12 8-12 4-18 29-12 MEAN QFF PRESSURE IN HPA 1020.9 1014.5 1009.9 1009.9 ****** 999.3 994.4 996.1 1004.8 1014.2 1016.8 1017.1 ****** MAX. QFF PRESSURE IN HPA 1030.8 1023.2 1017.8 1018.5 ****** 1029.8 1010.9 1005.9 1015.6 1022.4 1025.5 1029.6 ****** DAY-HOUR 10- 3 9- 3 16- 6 16- 3 **-** 3- 0 1- 3 21- 3 24- 3 18- 3 29- 3 23- 3 MIN. QFF PRESSURE IN HPA 1011.2 1003.2 1000.4 997.6 ****** 992.7 988.2 987.8 994.3 1005.7 1007.1 1002.6 ****** DAY-HOUR 1- 0 23-21 28- 0 10-15 **-** 11-12 23- 0 6-12 1- 9 8-12 4-18 29-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 866.6 863.1 861.6 863.2 ****** 858.5 854.9 855.6 860.4 865.2 866.0 864.8 ****** MAX. QFE PRESSURE IN HPA 871.5 867.7 866.7 868.3 ****** 881.8 866.3 859.8 865.8 868.7 869.5 870.2 ****** DAY 11 15 6 2 ** 3 9 23 21 18 29 23 MIN. QFE PRESSURE IN HPA 862.0 857.8 856.6 854.9 ****** 855.0 851.1 852.9 855.3 861.3 863.1 857.2 ****** DAY 1 24 28 11 ** 28 16 15 1 2 19 30 MEAN QNH PRESSURE IN HPA 1021.5 1017.5 1015.8 1017.6 ****** 1012.3 1008.1 1008.9 1014.4 1019.9 1020.9 1019.4 ****** MAX. QNH PRESSURE IN HPA 1027.1 1022.8 1021.6 1023.4 ****** 1038.9 1021.2 1013.7 1020.6 1023.9 1024.8 1025.6 ****** DAY 11 15 6 2 ** 3 9 23 21 18 29 23 MIN. QNH PRESSURE IN HPA 1016.2 1011.4 1010.1 1008.1 ****** 1008.2 1003.8 1005.8 1008.6 1015.4 1017.5 1010.8 ****** DAY 1 24 28 11 ** 28 16 15 1 2 19 30 MEAN QFF PRESSURE IN HPA 1020.4 1014.2 1009.6 1010.1 ****** 1000.7 995.1 996.3 1004.8 1014.3 1016.4 1017.0 ****** MAX. QFF PRESSURE IN HPA 1029.5 1021.0 1016.1 1017.7 ****** 1029.8 1006.7 1004.1 1013.2 1020.1 1022.3 1026.5 ****** DAY 10 3 16 2 ** 3 9 22 23 18 29 23 MIN. QFF PRESSURE IN HPA 1011.2 1003.8 1000.4 998.5 ****** 996.8 988.2 991.0 997.7 1007.4 1011.9 1006.5 ****** DAY 1 24 28 11 ** 11 23 7 1 2 4 30 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 867.0 863.4 861.8 863.7 ****** 858.2 855.5 856.4 861.1 865.6 866.8 865.0 ****** MAX. QFE PRESSURE IN HPA 871.9 868.0 865.5 867.5 ****** 861.8 866.7 860.9 866.4 869.3 870.3 870.9 ****** DAY 11 15 23 2 ** 2 1 21 24 18 29 23 MIN. QFE PRESSURE IN HPA 862.0 858.4 858.0 857.0 ****** 854.4 852.2 853.6 855.6 860.8 863.9 856.9 ****** DAY 27 24 28 11 ** 11 16 7 1 9 1 29 MEAN QNH PRESSURE IN HPA 1021.9 1017.8 1016.1 1018.1 ****** 1011.9 1008.9 1009.8 1015.2 1020.3 1021.7 1019.7 ****** MAX. QNH PRESSURE IN HPA 1027.6 1023.1 1020.2 1022.5 ****** 1016.0 1021.6 1015.0 1021.3 1024.6 1025.7 1026.4 ****** DAY 11 15 23 2 ** 2 1 21 24 18 29 23 MIN. QNH PRESSURE IN HPA 1016.2 1012.1 1011.7 1010.5 ****** 1007.6 1005.0 1006.6 1008.9 1014.9 1018.4 1010.4 ****** DAY 27 24 28 11 ** 11 16 7 1 9 1 29 MEAN QFF PRESSURE IN HPA 1022.4 1016.5 1011.1 1011.8 ****** 1000.6 996.1 998.0 1006.8 1016.3 1019.2 1019.1 ****** MAX. QFF PRESSURE IN HPA 1030.8 1023.2 1016.9 1018.5 ****** 1005.9 1010.9 1005.9 1015.6 1022.4 1025.5 1029.6 ****** DAY 10 9 23 16 ** 3 1 21 24 18 29 23 MIN. QFF PRESSURE IN HPA 1013.1 1005.9 1003.3 1001.1 ****** 995.0 991.5 992.2 998.8 1006.7 1012.6 1008.1 ****** DAY 27 24 28 10 ** 11 23 7 1 9 3 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 868.1 864.5 862.8 864.3 ****** 858.4 855.3 856.1 861.7 866.2 867.5 865.8 ****** MAX. QFE PRESSURE IN HPA 872.7 868.8 867.0 869.3 ****** 862.3 860.4 860.1 867.4 869.8 871.1 872.1 ****** DAY 11 14 16 2 ** 2 10 22 20 18 29 2 MIN. QFE PRESSURE IN HPA 863.3 860.4 859.0 857.4 ****** 854.2 852.6 852.2 856.1 862.7 864.0 857.2 ****** DAY 27 11 4 10 ** 11 27 7 1 8 4 29 MEAN QNH PRESSURE IN HPA 1023.2 1019.1 1017.2 1018.9 ****** 1012.2 1008.6 1009.5 1015.9 1021.0 1022.5 1020.6 ****** MAX. QNH PRESSURE IN HPA 1028.5 1024.0 1022.0 1024.6 ****** 1016.6 1014.4 1014.1 1022.4 1025.2 1026.6 1027.8 ****** DAY 11 14 16 2 ** 2 10 22 20 18 29 2 MIN. QNH PRESSURE IN HPA 1017.7 1014.4 1012.8 1011.0 ****** 1007.3 1005.5 1005.0 1009.5 1017.0 1018.5 1010.8 ****** DAY 27 11 4 10 ** 11 27 7 1 8 4 29 MEAN QFF PRESSURE IN HPA 1022.6 1016.1 1011.0 1010.9 ****** 999.8 994.9 996.4 1005.6 1015.0 1018.2 1018.5 ****** MAX. QFF PRESSURE IN HPA 1030.2 1022.1 1017.8 1018.1 ****** 1005.8 1001.8 1004.1 1013.3 1021.0 1024.6 1028.6 ****** DAY 11 9 16 2 ** 2 10 22 24 18 29 23 MIN. QFF PRESSURE IN HPA 1013.4 1008.4 1005.1 1000.8 ****** 993.8 991.4 989.9 997.4 1008.2 1012.1 1008.2 ****** DAY 1 24 28 10 ** 11 16 7 1 2 3 29 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 866.3 863.1 861.6 863.2 ****** 857.7 854.4 855.0 860.2 864.4 865.6 863.7 ****** MAX. QFE PRESSURE IN HPA 870.4 869.0 865.6 867.8 ****** 860.9 859.3 858.9 866.4 868.3 868.6 870.0 ****** DAY 11 14 15 19 ** 2 10 22 20 14 16 2 MIN. QFE PRESSURE IN HPA 862.1 858.2 857.0 855.5 ****** 853.8 851.4 851.1 853.5 860.7 861.6 854.1 ****** DAY 26 23 4 10 ** 29 28 7 1 2 1 29 MEAN QNH PRESSURE IN HPA 1021.1 1017.4 1015.8 1017.6 ****** 1011.3 1007.6 1008.3 1014.1 1019.0 1020.4 1018.2 ****** MAX. QNH PRESSURE IN HPA 1025.8 1024.2 1020.4 1022.9 ****** 1015.0 1013.2 1012.7 1021.3 1023.4 1023.8 1025.4 ****** DAY 11 14 15 19 ** 2 10 22 20 14 16 2 MIN. QNH PRESSURE IN HPA 1016.4 1011.9 1010.5 1008.8 ****** 1006.9 1004.1 1003.8 1006.5 1014.8 1015.8 1007.2 ****** DAY 26 23 4 10 ** 29 28 7 1 2 1 29 MEAN QFF PRESSURE IN HPA 1019.4 1013.5 1009.1 1009.3 ****** 998.9 994.0 995.2 1003.8 1012.7 1015.3 1015.2 ****** MAX. QFF PRESSURE IN HPA 1026.2 1019.4 1015.8 1016.7 ****** 1003.9 1000.4 1002.7 1011.4 1019.1 1020.3 1024.4 ****** DAY 11 9 23 13 ** 2 10 22 24 18 29 23 MIN. QFF PRESSURE IN HPA 1012.0 1005.5 1002.6 998.4 ****** 994.2 990.2 989.1 994.3 1005.7 1008.6 1003.5 ****** DAY 1 23 4 10 ** 11 17 7 1 2 1 29 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 865.3 861.7 860.3 862.1 ****** 856.4 853.5 854.1 859.1 863.5 865.0 863.3 ****** MAX. QFE PRESSURE IN HPA 869.5 867.1 864.7 867.8 ****** 860.0 858.9 858.0 864.3 867.0 867.6 869.2 ****** DAY 10 14 15 16 ** 13 10 22 22 17 16 23 MIN. QFE PRESSURE IN HPA 860.7 857.0 856.2 854.7 ****** 852.3 850.9 850.1 852.8 859.1 861.3 853.0 ****** DAY 27 23 4 10 ** 11 16 6 1 8 1 29 MEAN QNH PRESSURE IN HPA 1020.0 1015.9 1014.3 1016.4 ****** 1009.8 1006.5 1007.2 1012.9 1018.0 1019.7 1017.8 ****** MAX. QNH PRESSURE IN HPA 1024.8 1022.1 1019.3 1022.9 ****** 1014.0 1012.7 1011.7 1018.9 1022.0 1022.6 1024.5 ****** DAY 10 14 15 16 ** 13 10 22 22 17 16 23 MIN. QNH PRESSURE IN HPA 1014.8 1010.5 1009.6 1007.9 ****** 1005.2 1003.6 1002.6 1005.7 1012.9 1015.4 1006.0 ****** DAY 27 23 4 10 ** 11 16 6 1 8 1 29 MEAN QFF PRESSURE IN HPA 1018.9 1012.5 1008.0 1008.8 ****** 998.2 993.5 994.7 1003.3 1012.4 1015.3 1015.4 ****** MAX. QFF PRESSURE IN HPA 1025.8 1018.5 1015.4 1018.2 ****** 1003.1 1000.2 1001.9 1011.8 1018.4 1019.8 1025.1 ****** DAY 10 9 23 16 ** 13 10 22 22 17 29 22 MIN. QFF PRESSURE IN HPA 1011.6 1004.6 1001.4 997.8 ****** 992.7 989.6 987.8 994.9 1005.7 1009.6 1002.6 ****** DAY 27 23 28 10 ** 11 29 6 1 8 1 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 866.5 862.5 861.3 862.0 ****** 856.4 853.5 854.7 859.4 864.1 865.2 863.8 ****** MAX. QFE PRESSURE IN HPA 870.3 867.1 865.4 867.6 ****** 859.6 858.0 863.8 864.3 867.6 868.2 869.6 ****** DAY 12 14 22 1 ** 5 10 11 22 18 29 2 MIN. QFE PRESSURE IN HPA 862.0 857.5 857.9 853.9 ****** 853.0 850.8 851.1 854.1 859.5 861.4 854.0 ****** DAY 26 23 4 10 ** 11 29 6 2 8 3 29 MEAN QNH PRESSURE IN HPA 1021.4 1016.8 1015.4 1016.3 ****** 1009.9 1006.5 1007.9 1013.2 1018.7 1019.9 1018.3 ****** MAX. QNH PRESSURE IN HPA 1025.7 1022.1 1020.1 1022.6 ****** 1013.5 1011.7 1018.3 1018.9 1022.6 1023.3 1024.9 ****** DAY 12 14 22 1 ** 5 10 11 22 18 29 2 MIN. QNH PRESSURE IN HPA 1016.2 1011.1 1011.6 1007.0 ****** 1006.0 1003.4 1003.8 1007.2 1013.4 1015.6 1007.1 ****** DAY 26 23 4 10 ** 11 29 6 2 8 3 29 MEAN QFF PRESSURE IN HPA 1021.9 1015.3 1010.4 1009.8 ****** 998.6 993.7 996.1 1004.9 1014.6 1017.3 1017.8 ****** MAX. QFF PRESSURE IN HPA 1028.4 1021.8 1016.0 1018.3 ****** 1002.7 999.8 1004.8 1013.3 1020.8 1023.3 1027.7 ****** DAY 12 9 15 1 ** 4 10 11 22 18 29 23 MIN. QFF PRESSURE IN HPA 1013.4 1007.1 1004.2 997.6 ****** 993.4 988.9 989.8 997.2 1007.1 1009.5 1004.3 ****** DAY 27 23 27 10 ** 11 29 6 2 8 3 29 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 867.4 863.6 862.4 863.5 ****** 857.5 854.5 855.7 860.8 865.6 866.3 864.9 ****** MAX. QFE PRESSURE IN HPA 871.3 869.2 866.8 869.0 ****** 860.8 859.1 860.1 865.8 869.3 870.1 871.1 ****** DAY 10 14 22 1 ** 6 10 22 20 18 28 22 MIN. QFE PRESSURE IN HPA 863.0 858.0 859.0 856.7 ****** 854.4 851.1 851.7 856.4 862.1 860.0 856.4 ****** DAY 26 23 28 10 ** 28 15 15 1 7 4 29 MEAN QNH PRESSURE IN HPA 1022.4 1018.1 1016.7 1017.9 ****** 1011.1 1007.7 1009.0 1014.8 1020.3 1021.2 1019.6 ****** MAX. QNH PRESSURE IN HPA 1026.9 1024.5 1021.7 1024.2 ****** 1014.9 1012.9 1014.1 1020.6 1024.6 1025.5 1026.6 ****** DAY 10 14 22 1 ** 6 10 22 20 18 28 22 MIN. QNH PRESSURE IN HPA 1017.4 1011.7 1012.8 1010.2 ****** 1007.6 1003.8 1004.5 1009.8 1016.4 1014.0 1009.8 ****** DAY 26 23 28 10 ** 28 15 15 1 7 4 29 MEAN QFF PRESSURE IN HPA 1021.8 1015.0 1010.5 1009.8 ****** 998.9 993.9 995.9 1004.7 1014.3 1016.9 1017.5 ****** MAX. QFF PRESSURE IN HPA 1028.2 1021.2 1016.8 1018.0 ****** 1003.3 1000.6 1004.0 1012.1 1020.4 1023.3 1028.1 ****** DAY 10 9 15 1 ** 4 10 22 24 18 28 22 MIN. QFF PRESSURE IN HPA 1014.8 1004.8 1004.6 1000.0 ****** 994.2 989.2 990.2 998.6 1007.6 1007.1 1007.3 ****** DAY 26 23 7 10 ** 11 22 15 2 8 4 29 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 867.0 862.9 862.1 863.3 ****** 857.8 854.7 855.7 861.0 865.6 866.5 864.8 ****** MAX. QFE PRESSURE IN HPA 871.4 869.0 866.6 868.3 ****** 861.0 858.5 860.5 865.9 869.1 870.0 870.8 ****** DAY 10 14 22 1 ** 1 9 22 22 18 16 22 MIN. QFE PRESSURE IN HPA 862.2 857.7 858.4 856.0 ****** 854.7 851.3 852.6 856.4 861.7 863.2 857.0 ****** DAY 26 23 27 10 ** 11 16 20 1 7 3 29 MEAN QNH PRESSURE IN HPA 1022.0 1017.3 1016.4 1017.7 ****** 1011.5 1007.9 1009.1 1015.1 1020.4 1021.4 1019.4 ****** MAX. QNH PRESSURE IN HPA 1027.0 1024.2 1021.5 1023.4 ****** 1015.1 1012.2 1014.5 1020.7 1024.4 1025.4 1026.3 ****** DAY 10 14 22 1 ** 1 9 22 22 18 16 22 MIN. QNH PRESSURE IN HPA 1016.5 1011.3 1012.1 1009.4 ****** 1007.9 1004.0 1005.5 1009.8 1015.9 1017.6 1010.5 ****** DAY 26 23 27 10 ** 11 16 20 1 7 3 29 MEAN QFF PRESSURE IN HPA 1020.4 1013.2 1009.7 1009.3 ****** 999.2 994.2 996.0 1004.9 1014.1 1016.3 1016.4 ****** MAX. QFF PRESSURE IN HPA 1027.9 1019.5 1016.8 1017.8 ****** 1004.3 999.9 1004.4 1013.2 1020.1 1021.5 1026.3 ****** DAY 10 9 15 15 ** 2 10 22 22 18 28 22 MIN. QFF PRESSURE IN HPA 1012.7 1003.2 1003.2 998.8 ****** 994.3 988.6 991.8 998.6 1007.9 1010.5 1005.7 ****** DAY 26 23 27 10 ** 11 22 6 2 7 4 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.2 9.8 15.2 19.8 26.5 26.7 28.3 26.0 23.5 15.7 11.6 6.8 17.9 MINIMUN AIR TEMPERATURE (C) -0.1 2.7 9.9 12.5 16.6 17.2 21.5 16.3 14.5 5.8 2.4 0.3 10.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 3 2 18 1 0 0 0 0 24 DAYS WITH MINIMUM TEMP. <=-4 11 5 0 0 0 0 0 0 0 0 0 5 21 DAYS WITH FREEZING MIN.<= 0 19 13 0 1 0 0 0 0 0 0 3 18 54 TEMPERATURE RECORDS LOWEST(C) -7.0 -6.0 2.0 0.0 10.0 14.0 17.0 11.0 11.0 3.0 -1.0 -7.0 -7.0 DAY 4 14 16 3 4 7 5 30 17 8 15 26 MAXIMUM AIR TEMPERATURE (C) 11.9 18.6 22.1 27.0 35.2 34.6 34.7 33.9 32.3 26.1 22.5 14.8 26.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 14 28 30 27 31 26 6 0 0 162 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.0 25.0 27.0 32.0 40.0 39.0 39.0 36.0 37.0 32.0 26.0 23.0 40.0 DAY 31 11 9 13 28 3 8 7 13 18 7 10 DIF. BETWEEN (MAX.-MIN.) (C) 12.0 15.9 12.2 14.5 18.6 17.4 13.2 17.6 17.8 20.3 20.1 14.5 16.1 MEAN DAILY TEMP. (MDT) (C) 5.9 10.6 16.0 19.8 25.9 25.9 28.1 25.1 23.4 15.9 12.4 7.5 18.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 32.5 151.5 147.5 220.5 128.0 75.0 0.0 0.0 0.0 755.0 HEATING DEG. DAYS(BASE 18 0C) 374.0 214.5 79.0 38.0 0.0 0.0 0.0 0.0 0.0 68.0 166.5 324.0 1264.0 DEWPOINT (MEAN C) -2.7 -7.6 2.5 1.3 1.0 1.3 6.4 -3.7 -1.8 -3.5 -5.2 -5.9 -1.5 MIXING RATIO (G/KG) 3.92 2.82 5.58 5.35 5.12 5.19 7.55 3.61 4.17 3.67 3.16 3.13 4.44 VAPOUR PRESSURE (HPA) 5.40 3.89 7.64 7.32 7.00 7.09 10.23 4.93 5.72 5.07 4.38 4.32 6.08 SATURATION DEF. (HPA) 4.02 9.46 10.46 17.34 29.94 29.65 29.74 30.47 25.09 14.54 10.77 6.38 18.15 RELATIVE HUMIDITY (MEAN %) 62 34 48 35 22 22 29 16 22 31 35 46 34 RELATIVE HUMIDITY (MAX. %) 85 60 73 56 36 38 44 30 38 49 55 66 53 RELATIVE HUMIDITY (MIN. %) 41 14 26 18 11 11 17 7 10 15 16 26 18 RELATIVE HUMIDITY (MEAN% 03UTC) 77 49 62 50 28 28 35 28 33 43 48 55 45 RELATIVE HUMIDITY (MEAN% 09UTC) 43 16 31 20 13 13 21 9 12 18 17 31 20 RELATIVE HUMIDITY (MEAN% 15UTC) 57 30 43 28 16 16 27 11 16 26 37 47 30 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 28.2 4.3 27.2 21.0 0.0 0.0 26.0 0.0 0.0 6.0 0.0 5.0 117.7 DAYS WITH PRECIPITATION >=10 1 0 1 1 0 0 1 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 2 0 2 1 0 0 2 0 0 0 0 0 7 DAYS WITH PRECIPITATION >= 1 6 1 6 2 0 0 6 0 0 2 0 2 25 DAYS WITH PRECIPITATION 9 2 9 3 0 0 6 0 0 2 0 2 33 GREATEST DAILY PRECIPITATION 15.0 4.0 11.0 17.0 0.0 0.0 10.0 0.0 0.0 3.0 0.0 3.0 17.0 DAY 1 27 19 7 ** ** 16 ** ** 29 ** 31 DAY WITH THUNDER STORM 0 1 2 1 0 0 3 0 0 0 0 0 7 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 6 17 6 3 5 8 11 8 1 3 7 75 WIND DIRECTION (PREVAILING) 360 180 180 180 360 360 360 360 360 360 180 360 360 PREVAILING WIND SPEED(KNOTS) 6.6 10.2 18.8 15.5 8.5 12.3 10.9 10.5 10.6 8.4 6.2 8.8 9.7 PREVAILING WIND PERCENT 26.6 26.3 37.9 30.4 29.8 62.5 36.7 37.9 33.8 24.6 22.5 21.0 28.4 CALMS PERCENT OF WIND 6.9 3.4 2.4 9.2 13.7 5.8 11.7 13.7 10.0 24.6 18.3 11.3 11.0 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 145 205 199 206 313 1 16 357 6 356 131 167 328 VECTOR WIND MAGNITUDE(KNOTS) 1.2 3.6 9.3 5.2 1.8 8.6 5.2 6.0 4.1 2.1 1.2 1.0 0.7 WIND STEADINESES (MEAN %) 15.2 33.6 59.2 54.7 26.1 83.5 59.1 67.4 54.7 42.9 21.1 12.3 8.0 WIND SPEED (MEAN KNOTS) 7.9 10.7 15.7 9.5 6.9 10.3 8.8 8.9 7.5 4.9 5.7 8.1 8.8 FASTEST WIND DIRECTION 240 230 210 200 200 360 10 310 130 330 230 210 200 FASTEST WIND SPEED (KNOTS) 30 40 40 50 30 30 24 24 25 28 24 35 50 DAY 1 24 30 1 1 9 2 28 24 7 23 11 DAYS WITH SKY CLEAR (0-2)/8 19 13 6 16 31 28 11 29 24 27 25 9 238 DAYS WITH P.CLOUDY (3-6)/8 6 10 15 9 0 2 12 2 5 3 5 12 81 DAYS WITH CLOUDY (7-8)/8 6 6 10 5 0 0 8 0 1 1 0 10 47 DAYS WITH VISIBILITY =< 2 KM 3 4 12 4 1 2 0 0 3 0 0 2 31 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 863.5 863.4 859.9 860.5 858.1 857.0 854.0 856.6 859.7 864.7 866.7 866.2 860.9 MAX. QFE PRESSURE IN HPA 869.8 888.0 864.8 868.1 863.2 868.3 858.5 862.8 864.8 869.8 871.3 871.7 888.0 DAY-HOUR 26-18 13-15 6-18 2- 6 12- 6 16- 0 25- 6 31- 3 30- 6 25-18 20- 6 14- 6 MIN. QFE PRESSURE IN HPA 856.9 856.1 851.8 854.0 852.8 851.0 850.0 852.1 855.9 860.0 861.4 859.7 850.0 DAY-HOUR 31-12 25-15 24-12 22-12 27-12 4-12 21-12 4-15 9-12 28- 9 8-12 31- 9 MEAN QNH PRESSURE IN HPA 1018.0 1017.8 1013.9 1014.5 1011.8 1010.6 1007.1 1010.1 1013.6 1019.3 1021.7 1021.0 1014.9 MAX. QNH PRESSURE IN HPA 1025.2 1045.9 1019.4 1023.2 1017.6 1023.4 1012.2 1017.2 1019.4 1025.2 1026.9 1027.3 1045.9 DAY-HOUR 26-18 13-15 6-18 2- 6 12- 6 16- 0 25- 6 31- 3 30- 6 25-18 20- 6 14- 6 MIN. QNH PRESSURE IN HPA 1010.4 1009.5 1004.6 1007.1 1005.7 1003.7 1002.5 1004.9 1009.3 1014.0 1015.6 1013.6 1002.5 DAY-HOUR 31-12 25-15 24-12 22-12 27-12 4-12 21-12 4-15 9-12 28- 9 8-12 31- 9 MEAN QFF PRESSURE IN HPA 1018.4 1015.6 1008.2 1006.5 1000.2 998.9 994.3 998.8 1003.6 1013.7 1018.4 1020.5 1008.1 MAX. QFF PRESSURE IN HPA 1027.8 1048.0 1015.3 1019.4 1008.9 1012.6 1001.1 1009.6 1012.8 1022.0 1025.8 1030.4 1048.0 DAY-HOUR 21- 3 13-15 20- 6 2- 6 12- 6 16- 0 18- 3 31- 3 30- 6 26- 3 21- 3 25- 3 MIN. QFF PRESSURE IN HPA 1006.3 1003.8 997.8 996.9 992.7 990.2 988.3 993.3 998.4 1007.8 1010.5 1008.3 988.3 DAY-HOUR 31-21 25- 0 14- 0 22-21 28-15 4-12 21-12 15-12 13-12 18- 9 8- 9 11- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 863.6 863.2 859.6 860.5 858.1 857.4 854.0 856.7 859.9 864.6 866.7 865.9 860.8 MAX. QFE PRESSURE IN HPA 869.0 869.3 863.9 865.9 861.8 868.3 857.5 862.3 863.4 869.2 870.5 869.3 870.5 DAY 20 3 7 4 13 16 18 31 30 26 21 14 MIN. QFE PRESSURE IN HPA 858.7 857.1 852.2 855.4 853.7 852.8 851.9 853.4 857.7 860.5 863.9 861.0 851.9 DAY 29 1 14 23 28 4 15 5 8 29 1 11 MEAN QNH PRESSURE IN HPA 1018.1 1017.6 1013.5 1014.6 1011.8 1011.0 1007.2 1010.2 1013.8 1019.2 1021.6 1020.7 1014.9 MAX. QNH PRESSURE IN HPA 1024.2 1024.6 1018.4 1020.7 1016.0 1023.4 1011.1 1016.6 1017.8 1024.5 1026.0 1024.6 1026.0 DAY 20 3 7 4 13 16 18 31 30 26 21 14 MIN. QNH PRESSURE IN HPA 1012.5 1010.6 1005.0 1008.7 1006.8 1005.7 1004.7 1006.4 1011.3 1014.5 1018.4 1015.1 1004.7 DAY 29 1 14 23 28 4 15 5 8 29 1 11 MEAN QFF PRESSURE IN HPA 1018.1 1015.0 1007.6 1006.6 1000.5 999.5 994.3 999.0 1003.8 1013.3 1018.0 1019.8 1007.9 MAX. QFF PRESSURE IN HPA 1026.9 1026.7 1012.9 1018.7 1007.2 1012.6 1000.2 1007.5 1010.8 1019.5 1023.2 1027.0 1027.0 DAY 20 14 7 3 13 16 18 31 30 26 21 25 MIN. QFF PRESSURE IN HPA 1008.6 1003.8 997.8 997.7 993.6 992.6 990.2 994.6 1000.1 1009.9 1013.7 1008.3 990.2 DAY 16 25 14 23 28 30 22 8 8 29 3 11 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 864.0 863.8 859.9 861.1 859.1 857.7 854.7 857.4 860.4 865.2 867.3 866.5 861.4 MAX. QFE PRESSURE IN HPA 869.0 870.2 863.7 865.8 863.0 862.1 857.8 862.8 863.8 869.6 870.7 870.2 870.7 DAY 27 3 7 11 12 12 18 31 30 26 20 25 MIN. QFE PRESSURE IN HPA 859.5 857.7 853.2 856.7 855.2 853.8 852.4 853.4 857.9 860.8 864.1 861.4 852.4 DAY 1 27 25 7 26 4 15 4 10 29 8 31 MEAN QNH PRESSURE IN HPA 1018.5 1018.3 1013.8 1015.2 1012.9 1011.3 1007.9 1011.0 1014.4 1019.9 1022.3 1021.4 1015.6 MAX. QNH PRESSURE IN HPA 1024.2 1025.6 1018.2 1020.6 1017.4 1016.4 1011.4 1017.2 1018.3 1024.9 1026.2 1025.6 1026.2 DAY 27 3 7 11 12 12 18 31 30 26 20 25 MIN. QNH PRESSURE IN HPA 1013.4 1011.3 1006.2 1010.2 1008.5 1006.9 1005.3 1006.4 1011.6 1014.9 1018.6 1015.6 1005.3 DAY 1 27 25 7 26 4 15 4 10 29 8 31 MEAN QFF PRESSURE IN HPA 1020.1 1017.6 1009.1 1008.0 1001.8 1000.0 995.4 1000.3 1005.4 1015.9 1021.1 1022.5 1009.8 MAX. QFF PRESSURE IN HPA 1027.8 1029.5 1014.6 1019.3 1008.3 1005.6 1001.1 1009.6 1011.6 1022.0 1025.8 1030.4 1030.4 DAY 21 14 8 3 12 7 18 31 30 26 21 25 MIN. QFF PRESSURE IN HPA 1010.3 1006.6 1000.0 1000.2 995.2 993.6 991.7 995.8 1001.3 1011.5 1015.7 1011.7 991.7 DAY 1 22 25 23 26 30 22 4 8 23 3 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 864.7 864.4 860.8 861.7 859.2 857.8 855.1 857.6 860.8 866.0 867.9 867.3 861.9 MAX. QFE PRESSURE IN HPA 869.7 869.8 864.2 868.1 863.2 862.1 858.5 862.8 864.8 869.6 871.3 871.7 871.7 DAY 26 3 5 2 12 11 25 31 30 13 20 14 MIN. QFE PRESSURE IN HPA 858.3 858.7 854.4 857.6 855.1 854.0 852.6 853.3 858.0 862.0 863.7 861.6 852.6 DAY 23 25 24 6 28 28 15 4 9 29 8 31 MEAN QNH PRESSURE IN HPA 1019.3 1019.0 1014.9 1015.9 1013.1 1011.4 1008.3 1011.2 1014.9 1020.8 1023.0 1022.3 1016.2 MAX. QNH PRESSURE IN HPA 1025.0 1025.2 1018.8 1023.2 1017.6 1016.4 1012.2 1017.2 1019.4 1024.9 1026.9 1027.3 1027.3 DAY 26 3 5 2 12 11 25 31 30 13 20 14 MIN. QNH PRESSURE IN HPA 1012.0 1012.5 1007.6 1011.2 1008.4 1007.1 1005.5 1006.3 1011.7 1016.2 1018.2 1015.8 1005.5 DAY 23 25 24 6 28 28 15 4 9 29 8 31 MEAN QFF PRESSURE IN HPA 1019.6 1016.7 1009.3 1007.7 1001.3 999.5 995.3 999.6 1004.4 1014.8 1019.4 1021.6 1009.1 MAX. QFF PRESSURE IN HPA 1026.8 1026.9 1015.3 1019.4 1008.9 1005.6 1000.6 1007.5 1012.8 1019.5 1023.7 1029.3 1029.3 DAY 21 14 20 2 12 8 18 30 30 26 20 25 MIN. QFF PRESSURE IN HPA 1009.6 1005.3 1000.1 1001.0 994.4 992.9 991.2 994.3 1000.1 1010.3 1013.6 1011.2 991.2 DAY 1 25 24 30 28 29 11 4 13 29 8 11 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 863.2 863.0 859.8 860.6 858.2 857.0 854.3 856.5 859.3 864.2 866.4 865.6 860.7 MAX. QFE PRESSURE IN HPA 868.6 868.1 863.6 866.9 862.1 862.1 857.4 861.8 862.8 868.5 870.5 869.5 870.5 DAY 26 14 6 2 23 12 25 30 30 13 20 14 MIN. QFE PRESSURE IN HPA 858.1 857.6 853.4 855.9 854.0 852.5 852.0 852.6 857.0 860.0 861.9 859.7 852.0 DAY 29 24 24 23 27 4 1 4 9 28 8 31 MEAN QNH PRESSURE IN HPA 1017.7 1017.4 1013.8 1014.7 1011.9 1010.5 1007.4 1010.0 1013.2 1018.7 1021.2 1020.3 1014.7 MAX. QNH PRESSURE IN HPA 1023.8 1023.2 1018.1 1021.8 1016.4 1016.4 1011.0 1016.0 1017.2 1023.7 1026.0 1024.8 1026.0 DAY 26 14 6 2 23 12 25 30 30 13 20 14 MIN. QNH PRESSURE IN HPA 1011.8 1011.2 1006.4 1009.3 1007.1 1005.4 1004.8 1005.5 1010.5 1014.0 1016.1 1013.6 1004.8 DAY 29 24 24 23 27 4 1 4 9 28 8 31 MEAN QFF PRESSURE IN HPA 1017.4 1014.3 1007.6 1006.2 999.9 998.5 994.4 998.2 1002.7 1012.1 1016.8 1018.8 1007.2 MAX. QFF PRESSURE IN HPA 1024.6 1024.3 1013.1 1018.0 1006.7 1005.2 1000.2 1006.2 1009.7 1017.2 1021.9 1025.6 1025.6 DAY 20 14 7 2 12 8 18 30 30 13 20 25 MIN. QFF PRESSURE IN HPA 1008.0 1005.0 998.7 998.7 993.4 991.4 990.8 993.4 999.1 1007.8 1010.5 1008.5 990.8 DAY 29 25 24 23 27 4 11 4 13 18 8 11 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 862.4 862.2 858.9 859.3 856.8 855.9 852.9 855.2 858.2 863.6 865.5 865.0 859.6 MAX. QFE PRESSURE IN HPA 867.6 867.9 863.2 866.0 860.2 861.2 855.9 860.6 862.3 869.4 870.0 869.0 870.0 DAY 26 13 6 2 12 12 24 30 30 9 20 14 MIN. QFE PRESSURE IN HPA 856.9 856.5 851.8 854.0 852.8 851.0 850.0 852.2 855.9 860.0 861.4 859.9 850.0 DAY 31 24 24 22 27 4 21 4 9 28 8 31 MEAN QNH PRESSURE IN HPA 1016.7 1016.4 1012.7 1013.2 1010.3 1009.3 1005.8 1008.5 1011.9 1018.0 1020.3 1019.6 1013.6 MAX. QNH PRESSURE IN HPA 1022.6 1023.0 1017.6 1020.8 1014.2 1015.3 1009.3 1014.6 1016.6 1024.7 1025.4 1024.2 1025.4 DAY 26 13 6 2 12 12 24 30 30 9 20 14 MIN. QNH PRESSURE IN HPA 1010.4 1010.0 1004.6 1007.1 1005.7 1003.7 1002.5 1005.0 1009.3 1014.0 1015.6 1013.8 1002.5 DAY 31 24 24 22 27 4 21 4 9 28 8 31 MEAN QFF PRESSURE IN HPA 1016.6 1013.8 1006.8 1005.1 998.9 997.8 993.0 997.4 1002.0 1012.1 1016.6 1018.8 1006.6 MAX. QFF PRESSURE IN HPA 1024.3 1022.5 1011.5 1018.1 1005.3 1004.8 997.6 1006.1 1009.8 1020.1 1022.5 1025.1 1025.1 DAY 20 27 7 2 3 11 18 30 30 9 20 14 MIN. QFF PRESSURE IN HPA 1007.7 1004.4 998.2 997.5 992.9 990.2 988.3 993.3 998.4 1008.1 1011.1 1008.5 988.3 DAY 31 24 24 22 28 4 21 15 13 17 8 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 862.7 863.4 859.4 859.7 857.1 856.2 853.0 855.5 858.8 863.9 866.2 865.8 860.1 MAX. QFE PRESSURE IN HPA 868.9 888.0 863.8 865.0 862.0 861.5 856.1 860.8 862.6 867.4 869.7 869.4 888.0 DAY 26 13 6 2 12 11 26 30 30 25 20 3 MIN. QFE PRESSURE IN HPA 857.5 856.1 852.4 854.5 853.1 851.6 850.1 852.1 857.0 860.4 862.4 861.0 850.1 DAY 1 25 24 6 1 30 21 4 12 28 8 11 MEAN QNH PRESSURE IN HPA 1017.1 1017.9 1013.2 1013.6 1010.7 1009.6 1005.9 1008.8 1012.6 1018.5 1021.1 1020.5 1014.1 MAX. QNH PRESSURE IN HPA 1024.1 1045.9 1018.3 1019.7 1016.2 1015.7 1009.5 1014.9 1016.9 1022.4 1025.0 1024.7 1045.9 DAY 26 13 6 2 12 11 26 30 30 25 20 3 MIN. QNH PRESSURE IN HPA 1011.1 1009.5 1005.3 1007.7 1006.1 1004.4 1002.6 1004.9 1010.5 1014.4 1016.7 1015.1 1002.6 DAY 1 25 24 6 1 30 21 4 12 28 8 11 MEAN QFF PRESSURE IN HPA 1018.6 1017.1 1008.5 1006.4 999.4 998.2 993.5 998.3 1003.6 1014.4 1019.7 1021.6 1008.3 MAX. QFF PRESSURE IN HPA 1026.3 1048.0 1013.5 1018.0 1007.3 1004.4 998.7 1007.5 1010.9 1019.6 1024.6 1027.7 1048.0 DAY 26 13 20 3 12 11 18 30 30 26 14 14 MIN. QFF PRESSURE IN HPA 1007.7 1004.0 999.1 999.2 992.7 990.4 988.4 993.9 999.6 1010.1 1014.1 1010.6 988.4 DAY 1 24 24 29 28 30 11 14 13 17 8 11 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 863.9 863.6 860.5 860.6 858.3 857.2 854.2 857.0 859.9 865.1 867.0 866.7 861.2 MAX. QFE PRESSURE IN HPA 869.8 869.4 864.8 865.6 862.0 861.7 857.9 862.4 864.1 869.8 871.0 870.1 871.0 DAY 26 13 6 11 12 11 17 30 29 25 20 24 MIN. QFE PRESSURE IN HPA 858.3 858.1 854.0 854.5 853.9 853.1 850.3 853.0 857.4 860.4 864.1 861.6 850.3 DAY 31 25 23 6 27 30 11 4 8 28 8 11 MEAN QNH PRESSURE IN HPA 1018.4 1018.1 1014.6 1014.7 1012.0 1010.7 1007.3 1010.5 1013.9 1019.8 1022.0 1021.6 1015.3 MAX. QNH PRESSURE IN HPA 1025.2 1024.7 1019.4 1020.4 1016.2 1015.9 1011.6 1016.7 1018.6 1025.2 1026.5 1025.5 1026.5 DAY 26 13 6 11 12 11 17 30 29 25 20 24 MIN. QNH PRESSURE IN HPA 1012.0 1011.8 1007.1 1007.7 1007.0 1006.1 1002.9 1006.0 1011.0 1014.4 1018.6 1015.8 1002.9 DAY 31 25 23 6 27 30 11 4 8 28 8 11 MEAN QFF PRESSURE IN HPA 1018.6 1015.8 1008.9 1006.4 1000.1 998.7 994.2 998.9 1003.4 1013.8 1018.4 1021.0 1008.2 MAX. QFF PRESSURE IN HPA 1026.8 1026.3 1014.8 1018.3 1007.7 1005.6 1000.5 1006.9 1011.8 1019.5 1023.5 1027.4 1027.4 DAY 26 13 7 2 12 6 17 30 29 25 20 24 MIN. QFF PRESSURE IN HPA 1008.6 1005.6 1000.0 999.2 992.9 991.9 988.3 993.6 999.5 1008.8 1012.7 1009.5 988.3 DAY 31 24 23 30 26 29 11 4 13 28 8 11 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 863.7 863.6 860.6 860.6 858.4 857.3 854.2 857.2 860.1 865.1 867.0 866.7 861.2 MAX. QFE PRESSURE IN HPA 869.6 869.7 864.8 865.9 862.0 861.5 857.7 862.4 864.1 869.8 871.0 870.2 871.0 DAY 26 13 6 10 12 11 17 30 29 25 20 13 MIN. QFE PRESSURE IN HPA 857.7 858.8 853.1 855.1 854.0 853.2 851.3 853.8 857.4 860.5 864.0 862.0 851.3 DAY 31 25 23 22 27 29 11 4 8 28 2 11 MEAN QNH PRESSURE IN HPA 1018.2 1018.1 1014.7 1014.6 1012.2 1010.9 1007.3 1010.7 1014.0 1019.8 1022.0 1021.6 1015.3 MAX. QNH PRESSURE IN HPA 1024.9 1025.0 1019.4 1020.7 1016.2 1015.7 1011.3 1016.7 1018.6 1025.2 1026.5 1025.6 1026.5 DAY 26 13 6 10 12 11 17 30 29 25 20 13 MIN. QNH PRESSURE IN HPA 1011.3 1012.6 1006.1 1008.4 1007.1 1006.2 1004.0 1006.9 1011.0 1014.5 1018.5 1016.2 1004.0 DAY 31 25 23 22 27 29 11 4 8 28 2 11 MEAN QFF PRESSURE IN HPA 1017.9 1015.0 1008.4 1006.0 1000.2 998.8 994.2 998.9 1003.4 1013.3 1017.6 1020.2 1007.8 MAX. QFF PRESSURE IN HPA 1026.6 1026.3 1013.4 1019.1 1007.5 1004.8 1000.1 1006.9 1011.0 1019.3 1022.9 1026.9 1026.9 DAY 19 13 6 2 12 7 17 30 29 25 20 24 MIN. QFF PRESSURE IN HPA 1006.3 1005.0 999.5 996.9 993.3 991.6 989.1 994.8 1000.0 1008.8 1012.4 1009.6 989.1 DAY 31 24 23 22 27 28 11 4 13 28 9 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.6 7.5 13.2 16.8 21.9 26.5 27.8 26.1 20.8 17.4 11.7 8.4 17.0 MINIMUN AIR TEMPERATURE (C) 1.8 2.1 7.3 10.7 14.7 18.0 18.1 16.2 10.2 8.2 4.5 2.7 9.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 7 1 0 0 0 0 10 DAYS WITH MINIMUM TEMP. <=-4 1 4 0 0 0 0 0 0 0 0 0 5 10 DAYS WITH FREEZING MIN.<= 0 14 10 0 0 0 0 0 0 0 0 6 15 45 TEMPERATURE RECORDS LOWEST(C) -4.0 -5.0 2.0 3.0 10.0 15.0 13.0 11.0 8.0 1.0 -2.0 -6.0 -6.0 DAY 15 9 2 7 13 12 7 30 3 21 24 24 MAXIMUM AIR TEMPERATURE (C) 10.6 14.7 20.1 23.6 29.4 34.2 35.9 34.5 30.5 26.9 19.9 16.1 24.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 15 30 31 31 22 10 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) 19.0 21.0 25.0 30.0 35.0 39.0 41.0 39.0 33.0 32.0 26.0 23.0 41.0 DAY 31 26 5 28 29 5 17 8 17 2 4 2 DIF. BETWEEN (MAX.-MIN.) (C) 8.8 12.6 12.8 12.9 14.7 16.2 17.8 18.3 20.3 18.7 15.4 13.4 15.2 MEAN DAILY TEMP. (MDT) (C) 6.2 8.4 13.7 17.1 22.1 26.1 27.0 25.3 20.4 17.6 12.2 9.4 17.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 4.5 45.0 153.0 187.0 134.5 7.5 3.0 0.0 0.0 534.5 HEATING DEG. DAYS(BASE 18 0C) 365.5 269.0 136.5 48.0 0.0 0.0 0.0 0.0 0.0 48.0 173.5 267.5 1308.0 DEWPOINT (MEAN C) -0.3 -2.9 1.6 2.8 4.3 4.4 2.5 -1.8 -5.2 -2.1 0.0 -1.2 0.2 MIXING RATIO (G/KG) 4.50 3.79 5.29 5.63 6.33 6.27 5.55 4.15 3.13 3.94 4.56 4.32 4.79 VAPOUR PRESSURE (HPA) 6.19 5.23 7.26 7.72 8.66 8.56 7.56 5.68 4.32 5.45 6.29 5.96 6.57 SATURATION DEF. (HPA) 3.32 5.81 8.72 12.31 18.93 27.48 31.76 30.06 22.22 16.26 8.57 6.01 15.95 RELATIVE HUMIDITY (MEAN %) 69 54 51 43 36 26 22 18 20 30 49 55 39 RELATIVE HUMIDITY (MAX. %) 90 78 76 66 58 41 35 30 36 48 71 77 59 RELATIVE HUMIDITY (MIN. %) 46 29 27 24 18 15 12 9 8 14 27 31 22 RELATIVE HUMIDITY (MEAN% 03UTC) 82 67 69 55 46 34 28 27 29 42 65 73 51 RELATIVE HUMIDITY (MEAN% 09UTC) 56 35 35 27 21 18 13 10 10 16 29 33 25 RELATIVE HUMIDITY (MEAN% 15UTC) 70 48 43 38 30 20 17 13 13 26 45 52 35 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 90.1 18.0 25.3 23.0 20.5 0.2 0.0 0.0 0.0 0.0 8.0 11.0 196.1 DAYS WITH PRECIPITATION >=10 1 0 1 0 1 0 0 0 0 0 0 0 3 DAYS WITH PRECIPITATION >= 5 4 2 2 2 2 0 0 0 0 0 1 1 14 DAYS WITH PRECIPITATION >= 1 9 3 4 4 4 0 0 0 0 0 1 2 27 DAYS WITH PRECIPITATION 11 3 6 4 6 2 0 0 0 1 1 2 36 GREATEST DAILY PRECIPITATION 62.0 8.0 13.0 9.0 10.0 0.2 0.0 0.0 0.0 0.0 8.0 9.0 62.0 DAY 24 2 17 5 23 10 ** ** ** ** 24 29 DAY WITH THUNDER STORM 0 0 2 2 0 0 1 0 0 0 0 0 5 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 1 1 3 DAYS WITH DUST 9 9 6 8 6 8 7 6 2 3 6 6 76 WIND DIRECTION (PREVAILING) 360 360 225 360 225 360 360 360 360 360 360 360 360 PREVAILING WIND SPEED(KNOTS) 8.4 9.1 18.1 10.4 12.1 11.6 13.0 11.4 11.1 10.4 8.0 7.6 10.5 PREVAILING WIND PERCENT 23.7 25.4 24.6 24.2 20.2 42.1 34.7 31.5 25.8 25.4 20.4 18.1 25.2 CALMS PERCENT OF WIND 10.2 21.0 15.3 6.3 16.9 15.4 22.6 22.6 43.3 31.9 29.6 24.2 21.6 NO. OF WIND OBSERVATION 245 224 248 240 248 240 248 248 240 248 240 248 2917 VECTOR WIND DIRECTION (MEAN) 218 252 223 252 277 2 9 9 2 351 216 231 324 VECTOR WIND MAGNITUDE(KNOTS) 3.0 2.4 4.4 2.6 1.5 6.4 6.8 6.1 4.3 2.9 1.6 2.4 1.7 WIND STEADINESES (MEAN %) 29.7 26.4 47.8 22.4 18.5 68.1 75.6 77.2 76.8 49.2 22.2 28.9 20.0 WIND SPEED (MEAN KNOTS) 10.1 9.1 9.2 11.6 8.1 9.4 9.0 7.9 5.6 5.9 7.2 8.3 8.5 FASTEST WIND DIRECTION 210 210 230 230 100 210 30 50 300 280 210 200 210 FASTEST WIND SPEED (KNOTS) 38 44 38 38 32 40 26 24 28 24 30 32 44 DAY 12 1 16 4 17 12 30 12 23 31 5 7 DAYS WITH SKY CLEAR (0-2)/8 8 14 13 5 6 29 30 26 29 19 9 13 201 DAYS WITH P.CLOUDY (3-6)/8 8 11 13 21 22 1 1 5 1 12 17 14 126 DAYS WITH CLOUDY (7-8)/8 15 3 5 4 3 0 0 0 0 0 4 4 38 DAYS WITH VISIBILITY =< 2 KM 14 9 6 4 4 7 3 1 0 1 4 3 56 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 863.0 864.2 862.2 861.6 860.4 858.2 855.9 857.9 862.5 865.0 865.9 865.0 861.8 MAX. QFE PRESSURE IN HPA 871.8 871.3 868.4 869.0 868.9 868.8 860.9 861.3 865.1 869.8 872.2 871.1 872.2 DAY-HOUR 4- 6 9- 6 22- 6 17- 6 21-21 16- 0 26- 6 31- 6 8- 6 3- 6 25- 3 30- 6 MIN. QFE PRESSURE IN HPA 854.1 853.7 853.3 856.0 855.9 850.8 849.7 851.7 858.6 856.3 859.2 858.6 849.7 DAY-HOUR 12-12 5-12 17- 3 4-12 21-12 7-12 13-15 8-12 1-12 19- 0 18-12 10-12 MEAN QNH PRESSURE IN HPA 1017.4 1018.8 1016.5 1015.8 1014.5 1011.9 1009.3 1011.5 1016.8 1019.7 1020.7 1019.7 1016.0 MAX. QNH PRESSURE IN HPA 1027.4 1026.9 1023.6 1024.2 1024.1 1024.0 1015.0 1015.4 1019.8 1025.2 1027.9 1026.6 1027.9 DAY-HOUR 4- 6 9- 6 22- 6 17- 6 21-21 16- 0 26- 6 31- 6 8- 6 3- 6 25- 3 30- 6 MIN. QNH PRESSURE IN HPA 1007.2 1006.8 1006.3 1009.4 1009.3 1003.4 1002.2 1004.5 1012.4 1009.7 1013.0 1012.4 1002.2 DAY-HOUR 12-12 5-12 17- 3 4-12 21-12 7-12 13-15 8-12 1-12 19- 0 18-12 10-12 MEAN QFF PRESSURE IN HPA 1017.4 1017.8 1012.1 1009.3 1005.2 1000.2 997.0 1000.2 1008.4 1013.1 1017.3 1018.1 1009.7 MAX. QFF PRESSURE IN HPA 1028.6 1030.5 1020.7 1018.9 1015.1 1012.5 1003.2 1006.5 1012.6 1021.5 1031.7 1027.8 1031.7 DAY-HOUR 4- 6 9- 3 4- 3 7- 3 21-21 16- 0 26- 3 30- 3 12- 3 21- 3 25- 3 30- 6 MIN. QFF PRESSURE IN HPA 1004.8 1003.2 1000.4 1002.1 997.8 991.2 987.6 992.3 1003.3 1002.0 1007.5 1005.7 987.6 DAY-HOUR 12-15 5- 9 7-21 1-12 30-15 6-21 13-15 8-12 1- 9 19- 0 18-12 10-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 862.6 864.1 861.9 861.4 860.0 858.6 856.0 857.8 862.4 864.6 865.8 864.7 861.7 MAX. QFE PRESSURE IN HPA 869.4 869.3 866.4 867.3 862.6 868.8 859.7 860.7 864.6 867.7 871.2 869.1 871.2 DAY 4 9 4 17 29 16 26 30 17 15 25 30 MIN. QFE PRESSURE IN HPA 856.3 858.0 853.4 857.1 857.1 851.8 851.6 853.6 859.0 856.3 860.2 859.6 851.6 DAY 8 6 17 5 31 7 13 8 1 19 19 7 MEAN QNH PRESSURE IN HPA 1017.0 1018.7 1016.1 1015.6 1013.9 1012.3 1009.4 1011.5 1016.7 1019.2 1020.6 1019.3 1015.9 MAX. QNH PRESSURE IN HPA 1024.7 1024.6 1021.3 1022.3 1016.9 1024.0 1013.6 1014.8 1019.2 1022.8 1026.8 1024.4 1026.8 DAY 4 9 4 17 29 16 26 30 17 15 25 30 MIN. QNH PRESSURE IN HPA 1009.7 1011.7 1006.4 1010.6 1010.6 1004.6 1004.4 1006.6 1012.8 1009.7 1014.2 1013.5 1004.4 DAY 8 6 17 5 31 7 13 8 1 19 19 7 MEAN QFF PRESSURE IN HPA 1016.8 1017.3 1011.6 1009.0 1004.9 1000.9 997.3 1000.4 1008.4 1012.7 1017.0 1017.4 1009.5 MAX. QFF PRESSURE IN HPA 1025.8 1027.2 1018.7 1016.7 1009.2 1012.5 1001.9 1005.5 1010.9 1018.6 1028.6 1026.1 1028.6 DAY 14 8 4 17 6 16 27 30 17 21 25 23 MIN. QFF PRESSURE IN HPA 1007.9 1006.9 1001.1 1004.5 998.0 992.4 990.6 994.9 1003.4 1002.0 1008.7 1007.6 990.6 DAY 8 1 8 30 31 7 13 8 1 19 19 7 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 863.1 864.5 862.6 862.1 861.1 859.1 856.8 858.4 863.1 865.6 866.5 865.3 862.4 MAX. QFE PRESSURE IN HPA 870.3 870.7 866.7 868.4 863.5 862.1 860.4 861.2 865.1 868.9 872.2 870.0 872.2 DAY 4 9 4 17 6 17 26 30 17 31 25 30 MIN. QFE PRESSURE IN HPA 855.2 858.0 853.3 857.9 857.8 851.5 852.8 852.0 860.0 860.3 861.8 859.0 851.5 DAY 8 5 17 4 21 7 13 21 1 28 19 7 MEAN QNH PRESSURE IN HPA 1017.5 1019.1 1016.9 1016.4 1015.2 1013.0 1010.3 1012.1 1017.5 1020.3 1021.4 1020.0 1016.7 MAX. QNH PRESSURE IN HPA 1025.7 1026.2 1021.6 1023.6 1018.0 1016.4 1014.4 1015.3 1019.8 1024.1 1027.9 1025.4 1027.9 DAY 4 9 4 17 6 17 26 30 17 31 25 30 MIN. QNH PRESSURE IN HPA 1008.5 1011.7 1006.3 1011.6 1011.4 1004.2 1005.7 1004.8 1014.0 1014.3 1016.0 1012.8 1004.2 DAY 8 5 17 4 21 7 13 21 1 28 19 7 MEAN QFF PRESSURE IN HPA 1018.5 1019.2 1013.4 1010.6 1006.3 1001.5 998.4 1001.4 1010.1 1014.9 1019.5 1019.7 1011.1 MAX. QFF PRESSURE IN HPA 1028.1 1030.5 1020.7 1018.9 1010.9 1004.8 1003.2 1006.5 1012.6 1021.5 1031.7 1027.7 1031.7 DAY 14 9 4 7 6 3 26 30 12 21 25 30 MIN. QFF PRESSURE IN HPA 1007.6 1008.7 1002.8 1006.8 1001.2 992.2 991.9 993.7 1005.1 1007.6 1010.7 1008.0 991.9 DAY 8 1 8 4 31 7 18 21 1 11 19 7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 864.2 865.1 863.4 862.5 861.7 859.2 856.8 858.9 863.5 866.6 867.3 866.5 863.0 MAX. QFE PRESSURE IN HPA 871.8 871.3 868.4 869.0 864.8 862.1 860.9 861.3 865.1 869.8 872.0 871.1 872.0 DAY 4 9 22 17 10 17 26 31 8 3 25 30 MIN. QFE PRESSURE IN HPA 855.7 857.1 856.7 857.7 858.7 851.9 852.7 853.8 860.6 862.7 862.9 861.0 851.9 DAY 8 5 17 4 21 7 13 8 1 10 18 7 MEAN QNH PRESSURE IN HPA 1018.7 1019.8 1017.8 1016.9 1015.9 1013.0 1010.3 1012.7 1018.0 1021.5 1022.3 1021.4 1017.4 MAX. QNH PRESSURE IN HPA 1027.4 1026.9 1023.6 1024.2 1019.4 1016.4 1015.0 1015.4 1019.8 1025.2 1027.7 1026.6 1027.7 DAY 4 9 22 17 10 17 26 31 8 3 25 30 MIN. QNH PRESSURE IN HPA 1009.0 1010.6 1010.2 1011.3 1012.5 1004.7 1005.6 1006.9 1014.6 1017.0 1017.3 1015.1 1004.7 DAY 8 5 17 4 21 7 13 8 1 10 18 7 MEAN QFF PRESSURE IN HPA 1018.9 1018.9 1013.3 1010.3 1006.4 1001.2 997.7 1001.1 1009.0 1014.4 1018.6 1019.8 1010.8 MAX. QFF PRESSURE IN HPA 1028.6 1029.6 1020.0 1018.4 1011.9 1004.4 1002.8 1005.1 1010.9 1020.7 1030.5 1027.8 1030.5 DAY 4 9 4 7 10 1 26 31 12 21 25 30 MIN. QFF PRESSURE IN HPA 1006.6 1006.6 1006.0 1004.8 1001.2 991.8 990.8 994.3 1005.1 1007.8 1011.6 1009.3 990.8 DAY 8 5 8 1 30 7 18 8 1 11 18 7 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 862.7 863.7 862.4 861.4 860.4 858.2 855.7 857.7 862.1 864.7 865.3 864.6 861.6 MAX. QFE PRESSURE IN HPA 869.1 869.8 867.6 867.3 863.1 861.5 859.0 860.3 863.9 867.6 869.4 870.2 870.2 DAY 4 13 22 17 28 17 5 29 8 16 25 23 MIN. QFE PRESSURE IN HPA 855.6 854.3 857.4 857.4 856.6 851.0 851.3 852.7 859.6 861.7 860.7 859.7 851.0 DAY 12 5 17 4 20 7 13 8 1 10 18 7 MEAN QNH PRESSURE IN HPA 1017.0 1018.2 1016.7 1015.6 1014.4 1011.9 1009.1 1011.3 1016.3 1019.3 1020.1 1019.2 1015.7 MAX. QNH PRESSURE IN HPA 1024.4 1025.2 1022.6 1022.3 1017.5 1015.7 1012.8 1014.3 1018.4 1022.6 1024.7 1025.6 1025.6 DAY 4 13 22 17 28 17 5 29 8 16 25 23 MIN. QNH PRESSURE IN HPA 1008.9 1007.4 1011.0 1011.0 1010.1 1003.7 1004.0 1005.6 1013.5 1015.9 1014.8 1013.6 1003.7 DAY 12 5 17 4 20 7 13 8 1 10 18 7 MEAN QFF PRESSURE IN HPA 1016.4 1016.3 1011.7 1008.6 1004.8 999.8 996.4 999.6 1007.3 1011.9 1015.8 1016.6 1008.8 MAX. QFF PRESSURE IN HPA 1024.9 1027.0 1018.6 1016.1 1008.1 1003.3 1000.9 1004.6 1009.7 1017.5 1026.4 1025.4 1027.0 DAY 14 8 22 17 12 2 5 29 11 21 25 23 MIN. QFF PRESSURE IN HPA 1006.3 1003.2 1004.7 1002.8 999.2 991.2 989.8 992.8 1003.3 1006.1 1008.6 1007.9 989.8 DAY 12 5 16 1 20 7 17 8 1 11 18 2 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 862.0 863.1 861.3 860.3 859.2 856.9 854.7 856.5 861.2 863.7 864.6 863.8 860.6 MAX. QFE PRESSURE IN HPA 868.2 869.3 866.3 865.3 862.2 859.7 858.1 860.1 863.2 866.5 869.3 868.6 869.3 DAY 4 13 22 16 28 17 26 29 12 16 25 30 MIN. QFE PRESSURE IN HPA 854.1 853.7 856.0 856.0 855.9 850.8 850.8 851.7 858.6 860.3 859.2 858.6 850.8 DAY 12 5 7 4 21 7 13 8 1 10 18 10 MEAN QNH PRESSURE IN HPA 1016.3 1017.5 1015.4 1014.4 1013.1 1010.4 1007.9 1010.0 1015.3 1018.2 1019.2 1018.3 1014.7 MAX. QNH PRESSURE IN HPA 1023.3 1024.6 1021.2 1020.0 1016.5 1013.6 1011.8 1014.1 1017.6 1021.4 1024.6 1023.8 1024.6 DAY 4 13 22 16 28 17 26 29 12 16 25 30 MIN. QNH PRESSURE IN HPA 1007.2 1006.8 1009.4 1009.4 1009.3 1003.4 1003.4 1004.5 1012.4 1014.3 1013.0 1012.4 1003.4 DAY 12 5 7 4 21 7 13 8 1 10 18 10 MEAN QFF PRESSURE IN HPA 1016.0 1016.1 1010.9 1007.8 1004.1 998.9 995.8 998.9 1007.0 1011.7 1015.6 1016.5 1008.3 MAX. QFF PRESSURE IN HPA 1024.2 1026.2 1017.1 1014.7 1007.7 1002.3 1000.1 1005.1 1009.2 1017.8 1025.4 1025.0 1026.2 DAY 14 8 22 16 12 21 27 29 12 21 24 22 MIN. QFF PRESSURE IN HPA 1004.9 1004.0 1003.9 1002.1 998.8 991.2 989.1 992.3 1003.4 1005.6 1007.5 1005.7 989.1 DAY 12 5 7 1 20 7 13 8 1 11 18 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 862.7 863.9 861.7 861.4 859.8 857.3 855.0 857.0 861.6 864.5 865.2 864.4 861.2 MAX. QFE PRESSURE IN HPA 869.0 870.0 866.0 866.5 868.6 859.7 858.6 860.1 863.9 867.2 870.0 869.2 870.0 DAY 4 13 22 16 31 2 26 29 16 29 25 30 MIN. QFE PRESSURE IN HPA 854.9 856.2 855.7 857.3 856.7 851.8 849.7 852.7 858.6 860.6 860.6 859.9 849.7 DAY 12 5 16 1 20 7 13 7 1 10 18 7 MEAN QNH PRESSURE IN HPA 1017.0 1018.4 1015.9 1015.5 1013.7 1010.9 1008.2 1010.5 1015.8 1019.1 1019.9 1019.0 1015.3 MAX. QNH PRESSURE IN HPA 1024.2 1025.4 1020.8 1021.4 1023.8 1013.6 1012.4 1014.1 1018.4 1022.2 1025.4 1024.5 1025.4 DAY 4 13 22 16 31 2 26 29 16 29 25 30 MIN. QNH PRESSURE IN HPA 1008.1 1009.6 1009.0 1010.9 1010.2 1004.6 1002.2 1005.6 1012.4 1014.6 1014.6 1013.8 1002.2 DAY 12 5 16 1 20 7 13 7 1 10 18 7 MEAN QFF PRESSURE IN HPA 1017.8 1018.4 1012.3 1009.8 1004.8 999.4 996.3 999.8 1008.4 1013.7 1017.9 1018.8 1009.8 MAX. QFF PRESSURE IN HPA 1026.4 1028.5 1019.5 1016.6 1012.6 1002.4 1001.3 1005.0 1011.3 1019.3 1028.8 1027.0 1028.8 DAY 14 8 3 16 31 2 26 30 12 21 25 30 MIN. QFF PRESSURE IN HPA 1004.8 1007.0 1003.9 1004.3 997.8 992.3 987.6 993.4 1003.9 1006.2 1009.5 1007.9 987.6 DAY 12 5 16 1 30 6 13 8 1 10 5 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 863.5 864.7 862.4 862.2 860.6 858.3 856.3 858.3 863.0 865.5 866.1 865.4 862.2 MAX. QFE PRESSURE IN HPA 869.3 870.0 866.7 868.1 863.4 861.4 860.0 860.8 865.0 869.0 871.6 870.1 871.6 DAY 3 13 1 16 28 17 25 29 16 31 24 29 MIN. QFE PRESSURE IN HPA 858.0 858.6 854.2 856.9 857.6 852.1 851.6 853.8 860.0 861.6 860.4 860.0 851.6 DAY 9 5 16 4 20 6 13 7 1 10 18 5 MEAN QNH PRESSURE IN HPA 1017.9 1019.4 1016.8 1016.4 1014.7 1012.1 1009.7 1012.1 1017.3 1020.2 1021.0 1020.1 1016.5 MAX. QNH PRESSURE IN HPA 1024.6 1025.4 1021.6 1023.2 1017.8 1015.6 1014.0 1014.9 1019.7 1024.2 1027.2 1025.5 1027.2 DAY 3 13 1 16 28 17 25 29 16 31 24 29 MIN. QNH PRESSURE IN HPA 1011.7 1012.4 1007.3 1010.4 1011.2 1004.9 1004.4 1006.9 1014.0 1015.8 1014.4 1014.0 1004.4 DAY 9 5 16 4 20 6 13 7 1 10 18 5 MEAN QFF PRESSURE IN HPA 1018.1 1018.5 1012.0 1009.8 1005.0 1000.2 997.1 1000.4 1008.5 1013.2 1017.2 1018.6 1009.9 MAX. QFF PRESSURE IN HPA 1026.5 1027.7 1019.1 1017.6 1009.8 1003.2 1001.9 1004.4 1010.9 1018.4 1030.9 1027.1 1030.9 DAY 3 8 1 16 5 2 25 30 16 31 24 29 MIN. QFF PRESSURE IN HPA 1009.8 1008.6 1001.5 1004.6 999.0 991.6 990.3 994.5 1004.5 1006.6 1008.3 1009.0 990.3 DAY 12 1 7 4 30 6 13 8 1 9 18 7 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 863.2 864.8 862.4 861.9 860.8 858.4 856.3 858.3 862.9 865.4 866.1 865.3 862.1 MAX. QFE PRESSURE IN HPA 869.0 869.5 867.1 868.4 868.9 861.6 860.0 860.7 864.8 868.8 871.6 869.8 871.6 DAY 3 8 1 16 21 17 25 30 8 31 24 29 MIN. QFE PRESSURE IN HPA 856.5 858.1 854.0 856.2 857.4 851.5 852.2 853.5 860.0 861.1 860.2 859.6 851.5 DAY 7 5 16 4 20 6 13 7 1 10 18 5 MEAN QNH PRESSURE IN HPA 1017.6 1019.4 1016.7 1016.2 1014.9 1012.1 1009.7 1012.0 1017.3 1020.1 1020.9 1020.0 1016.4 MAX. QNH PRESSURE IN HPA 1024.2 1024.8 1022.1 1023.6 1024.1 1015.8 1014.0 1014.8 1019.4 1024.0 1027.2 1025.2 1027.2 DAY 3 8 1 16 21 17 25 30 8 31 24 29 MIN. QNH PRESSURE IN HPA 1010.0 1011.8 1007.1 1009.6 1011.0 1004.2 1005.0 1006.5 1014.0 1015.2 1014.2 1013.5 1004.2 DAY 7 5 16 4 20 6 13 7 1 10 18 5 MEAN QFF PRESSURE IN HPA 1017.1 1017.7 1011.6 1009.1 1005.1 1000.1 997.0 1000.1 1008.3 1012.8 1016.6 1017.5 1009.4 MAX. QFF PRESSURE IN HPA 1025.8 1027.6 1020.3 1017.3 1015.1 1003.4 1001.6 1004.3 1010.3 1018.5 1029.7 1025.3 1029.7 DAY 13 8 1 16 21 17 25 29 8 31 24 29 MIN. QFF PRESSURE IN HPA 1007.8 1008.7 1000.4 1003.5 999.3 991.2 991.0 994.3 1005.0 1005.8 1008.0 1008.7 991.0 DAY 31 5 7 4 30 6 17 7 1 9 18 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.8 9.6 17.2 ***** 23.7 28.8 29.8 26.6 23.5 17.0 8.1 9.9 ***** MINIMUN AIR TEMPERATURE (C) 3.1 2.5 9.8 ***** 14.8 18.9 20.5 16.6 13.1 7.0 0.0 4.3 ***** DAYS WITH MINIMUM TEMP. >=21 0 0 0 **** 1 4 13 6 0 0 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 3 1 0 **** 0 0 0 0 0 0 7 1 **** DAYS WITH FREEZING MIN.<= 0 8 10 1 **** 0 0 0 0 0 1 15 6 **** TEMPERATURE RECORDS LOWEST(C) -6.0 -4.0 0.0 ***** 10.0 14.0 14.0 11.0 8.0 0.0 -8.0 -4.0 ***** DAY 1 11 2 ** 14 21 18 28 30 24 26 28 MAXIMUM AIR TEMPERATURE (C) 15.9 17.5 25.5 ***** 31.4 37.0 37.5 35.2 33.5 27.3 17.7 16.9 ***** DAYS WITH MAXIMUM TEMP. >=30 0 0 0 **** 23 30 31 31 26 6 0 0 **** DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 **** 0 0 0 0 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C) 23.0 24.0 29.0 ***** 36.0 42.0 42.0 39.0 38.0 32.0 25.0 25.0 ***** DAY 17 24 23 ** 4 12 4 1 3 4 6 8 DIF. BETWEEN (MAX.-MIN.) (C) 12.8 15.0 15.7 ***** 16.6 18.1 17.0 18.6 20.4 20.3 17.7 12.6 ***** MEAN DAILY TEMP. (MDT) (C) 9.5 10.0 17.7 ***** 23.1 27.9 29.0 25.9 23.3 17.1 8.8 10.6 ***** COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 2.5 ****** 67.5 207.5 249.5 152.0 75.5 0.0 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C) 264.0 223.5 46.5 ****** 0.0 0.0 0.0 0.0 0.0 39.5 275.0 230.5 ****** DEWPOINT (MEAN C) -1.1 -3.9 -2.6 ***** -3.7 -0.2 1.2 -1.4 3.2 0.8 -4.6 1.2 ***** MIXING RATIO (G/KG) 4.38 3.57 3.87 ****** 3.59 4.57 5.34 4.29 6.22 4.92 3.44 4.97 ****** VAPOUR PRESSURE (HPA) 6.04 4.93 5.33 ****** 4.94 6.25 7.26 5.86 8.49 6.77 4.76 6.86 ****** SATURATION DEF. (HPA) 6.04 7.87 15.61 ****** 25.85 35.19 36.60 31.10 22.97 14.50 7.31 6.18 ****** RELATIVE HUMIDITY (MEAN %) 56 44 30 *** 18 17 18 18 31 37 43 58 *** RELATIVE HUMIDITY (MAX. %) 79 72 50 *** 32 29 29 30 44 55 65 77 *** RELATIVE HUMIDITY (MIN. %) 32 21 13 *** 9 8 10 8 18 21 26 39 *** RELATIVE HUMIDITY (MEAN% 03UTC) 72 59 42 *** 24 23 25 26 38 47 54 71 *** RELATIVE HUMIDITY (MEAN% 09UTC) 35 24 16 *** 11 10 12 11 22 23 32 43 *** RELATIVE HUMIDITY (MEAN% 15UTC) 53 34 25 *** 14 13 13 14 26 31 43 54 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 37.8 2.0 1.6 ****** 0.0 1.0 0.0 0.0 0.0 0.0 0.0 75.0 ****** DAYS WITH PRECIPITATION >=10 1 0 0 **** 0 0 0 0 0 0 0 3 **** DAYS WITH PRECIPITATION >= 5 2 0 0 **** 0 0 0 0 0 0 0 3 **** DAYS WITH PRECIPITATION >= 1 4 1 1 **** 0 1 0 0 0 0 0 3 **** DAYS WITH PRECIPITATION 5 1 3 **** 1 2 0 0 0 0 0 4 **** GREATEST DAILY PRECIPITATION 29.0 2.0 1.0 ****** 0.0 1.0 0.0 0.0 0.0 0.0 0.0 28.0 ****** DAY 24 25 31 ** ** 2 ** ** ** ** ** 19 DAY WITH THUNDER STORM 0 1 0 **** 0 0 1 0 0 0 0 0 **** DAYS WITH SNOW OR SLEET 0 0 0 **** 0 0 0 0 0 0 0 0 **** DAYS WITH DUST 7 6 11 **** 6 10 8 10 6 4 6 5 **** WIND DIRECTION (PREVAILING) 180 360 225 *** 360 360 360 360 360 360 360 225 *** PREVAILING WIND SPEED(KNOTS) 11.6 8.8 18.4 **** 12.0 12.0 14.0 13.3 12.5 11.3 10.1 15.7 **** PREVAILING WIND PERCENT 15.3 16.5 24.6 ***** 33.1 38.3 39.5 41.1 35.4 21.8 24.2 17.7 ***** CALMS PERCENT OF WIND 26.2 30.8 16.1 ***** 23.4 23.3 24.6 31.9 42.1 50.8 49.6 33.9 ***** NO. OF WIND OBSERVATION 248 224 248 **** 248 240 248 248 240 248 240 248 2680 VECTOR WIND DIRECTION (MEAN) 185 243 228 *** 339 8 4 5 360 350 9 204 *** VECTOR WIND MAGNITUDE(KNOTS) 3.9 1.0 5.3 **** 5.6 5.5 7.1 7.0 5.1 2.3 1.4 2.9 **** WIND STEADINESES (MEAN %) 43.3 14.1 48.6 ***** 62.2 66.3 74.0 88.6 83.6 43.4 26.9 38.2 ***** WIND SPEED (MEAN KNOTS) 9.0 7.1 10.9 **** 9.0 8.3 9.6 7.9 6.1 5.3 5.2 7.6 **** FASTEST WIND DIRECTION 210 230 230 *** 310 360 310 360 360 360 210 210 *** FASTEST WIND SPEED (KNOTS) 32 45 40 *** 36 26 28 30 30 26 26 34 *** DAY 18 1 4 ** 13 27 16 25 7 5 7 10 DAYS WITH SKY CLEAR (0-2)/8 9 17 14 **** 23 18 20 24 28 29 17 7 **** DAYS WITH P.CLOUDY (3-6)/8 10 9 12 **** 8 12 9 7 2 2 13 14 **** DAYS WITH CLOUDY (7-8)/8 12 2 5 **** 0 0 2 0 0 0 0 10 **** DAYS WITH VISIBILITY =< 2 KM 11 2 4 **** 4 2 6 3 1 1 1 4 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 864.9 863.9 862.8 ****** 862.0 857.2 853.8 857.0 859.6 864.6 867.3 865.1 ****** MAX. QFE PRESSURE IN HPA 871.6 870.2 868.1 ****** 868.6 862.4 864.5 861.4 864.6 869.0 872.3 871.3 ****** DAY-HOUR 2- 6 13- 9 28-18 **-** 13-18 2- 3 18-15 18- 6 22- 6 7- 6 3-18 5- 6 MIN. QFE PRESSURE IN HPA 858.2 855.8 855.6 ****** 857.0 852.5 846.0 853.0 854.9 858.5 860.0 859.1 ****** DAY-HOUR 30-15 3-12 10-12 **-** 2-12 21-12 9-12 1-12 3-12 10-12 7-12 11-12 MEAN QNH PRESSURE IN HPA 1019.5 1018.4 1017.2 ****** 1016.2 1010.7 1006.9 1010.6 1013.5 1019.3 1022.3 1019.8 ****** MAX. QNH PRESSURE IN HPA 1027.2 1025.6 1023.2 ****** 1023.8 1016.7 1019.1 1015.6 1019.2 1024.2 1028.0 1026.9 ****** DAY-HOUR 2- 6 13- 9 28-18 **-** 13-18 2- 3 18-15 18- 6 22- 6 7- 6 3-18 5- 6 MIN. QNH PRESSURE IN HPA 1011.9 1009.2 1008.9 ****** 1010.5 1005.4 998.0 1006.0 1008.1 1012.2 1014.0 1012.9 ****** DAY-HOUR 30-15 3-12 10-12 **-** 2-12 21-12 9-12 1-12 3-12 10-12 7-12 11-12 MEAN QFF PRESSURE IN HPA 1017.8 1016.2 1010.7 ****** 1006.3 998.0 993.6 998.9 1003.3 1012.8 1021.1 1017.3 ****** MAX. QFF PRESSURE IN HPA 1030.2 1027.0 1020.2 ****** 1016.1 1005.5 1008.5 1004.5 1012.5 1020.9 1029.3 1026.2 ****** DAY-HOUR 3- 3 14- 3 2- 3 **-** 14- 3 3- 3 18-15 27- 3 30- 3 22- 3 26- 3 27- 3 MIN. QFF PRESSURE IN HPA 1007.6 1006.0 1000.7 ****** 999.2 991.7 983.6 992.2 995.7 1005.7 1007.7 1006.9 ****** DAY-HOUR 31-12 3- 9 10-12 **-** 2-12 12-21 10-12 3- 9 6- 9 10-12 7-12 11-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 864.8 863.6 862.7 ****** 861.8 857.2 853.9 857.0 859.5 864.5 867.4 865.0 ****** MAX. QFE PRESSURE IN HPA 870.3 869.3 867.0 ****** 867.0 861.4 856.3 859.5 864.0 867.6 871.2 870.7 ****** DAY 2 14 29 ** 14 2 16 10 22 7 19 6 MIN. QFE PRESSURE IN HPA 860.4 857.6 856.4 ****** 858.5 853.3 847.3 853.9 856.4 860.9 862.6 861.0 ****** DAY 31 6 10 ** 2 27 10 2 4 10 8 12 MEAN QNH PRESSURE IN HPA 1019.4 1018.1 1017.0 ****** 1016.0 1010.8 1007.0 1010.5 1013.4 1019.1 1022.4 1019.7 ****** MAX. QNH PRESSURE IN HPA 1025.7 1024.6 1022.0 ****** 1022.0 1015.6 1009.7 1013.4 1018.5 1022.6 1026.8 1026.2 ****** DAY 2 14 29 ** 14 2 16 10 22 7 19 6 MIN. QNH PRESSURE IN HPA 1014.4 1011.2 1009.8 ****** 1012.2 1006.3 999.4 1007.0 1009.8 1015.0 1016.9 1015.1 ****** DAY 31 6 10 ** 2 27 10 2 4 10 8 12 MEAN QFF PRESSURE IN HPA 1017.5 1015.6 1010.3 ****** 1006.4 998.5 993.8 999.1 1003.4 1012.7 1021.0 1016.9 ****** MAX. QFF PRESSURE IN HPA 1027.6 1024.6 1018.1 ****** 1015.2 1004.7 998.8 1002.7 1010.7 1017.9 1028.3 1024.3 ****** DAY 2 14 2 ** 14 1 17 30 30 23 19 27 MIN. QFF PRESSURE IN HPA 1008.2 1006.5 1001.0 ****** 1001.3 992.6 983.7 993.9 998.2 1008.2 1010.3 1008.0 ****** DAY 31 25 10 ** 2 27 10 2 6 10 8 10 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 865.2 864.2 863.5 ****** 862.9 858.3 854.8 857.8 860.2 865.3 867.8 865.4 ****** MAX. QFE PRESSURE IN HPA 870.5 870.0 867.3 ****** 867.8 862.4 856.8 860.0 864.4 868.6 871.7 871.0 ****** DAY 3 14 29 ** 14 2 29 19 22 7 19 6 MIN. QFE PRESSURE IN HPA 860.4 857.9 857.1 ****** 858.7 854.0 848.2 855.0 857.0 862.1 863.3 861.2 ****** DAY 31 6 10 ** 1 21 10 6 7 10 7 12 MEAN QNH PRESSURE IN HPA 1019.9 1018.8 1017.9 ****** 1017.2 1012.0 1008.0 1011.4 1014.1 1020.0 1022.8 1020.2 ****** MAX. QNH PRESSURE IN HPA 1026.0 1025.4 1022.3 ****** 1022.9 1016.7 1010.3 1014.0 1019.0 1023.8 1027.3 1026.5 ****** DAY 3 14 29 ** 14 2 29 19 22 7 19 6 MIN. QNH PRESSURE IN HPA 1014.4 1011.6 1010.6 ****** 1012.5 1007.1 1000.5 1008.2 1010.5 1016.4 1017.7 1015.3 ****** DAY 31 6 10 ** 1 21 10 6 7 10 7 12 MEAN QFF PRESSURE IN HPA 1019.5 1017.9 1012.5 ****** 1007.9 999.7 995.1 1000.6 1005.3 1015.1 1023.4 1018.9 ****** MAX. QFF PRESSURE IN HPA 1030.2 1027.0 1020.2 ****** 1016.1 1005.5 999.9 1004.5 1012.5 1020.9 1029.3 1026.2 ****** DAY 3 14 2 ** 14 3 16 27 30 22 26 27 MIN. QFF PRESSURE IN HPA 1009.2 1007.0 1003.8 ****** 1002.3 995.6 985.3 996.3 999.4 1010.3 1013.4 1010.0 ****** DAY 31 1 10 ** 2 21 10 3 7 2 7 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 866.5 865.2 863.9 ****** 863.3 858.2 854.6 858.2 860.7 865.8 868.5 866.4 ****** MAX. QFE PRESSURE IN HPA 871.6 870.2 867.8 ****** 867.5 862.4 856.9 861.4 864.6 869.0 871.7 871.3 ****** DAY 2 14 28 ** 14 3 16 18 22 7 3 5 MIN. QFE PRESSURE IN HPA 862.5 858.5 858.0 ****** 859.2 853.9 848.0 855.4 856.8 863.0 862.5 861.7 ****** DAY 31 6 10 ** 2 21 10 6 8 10 7 11 MEAN QNH PRESSURE IN HPA 1021.4 1019.9 1018.5 ****** 1017.8 1011.9 1007.8 1011.9 1014.8 1020.6 1023.7 1021.3 ****** MAX. QNH PRESSURE IN HPA 1027.2 1025.6 1022.9 ****** 1022.5 1016.7 1010.4 1015.6 1019.2 1024.2 1027.3 1026.9 ****** DAY 2 14 28 ** 14 3 16 18 22 7 3 5 MIN. QNH PRESSURE IN HPA 1016.8 1012.2 1011.7 ****** 1013.0 1007.0 1000.2 1008.7 1010.3 1017.4 1016.8 1015.9 ****** DAY 31 6 10 ** 2 21 10 6 8 10 7 11 MEAN QFF PRESSURE IN HPA 1019.8 1017.5 1011.8 ****** 1007.8 998.9 994.1 999.8 1004.1 1013.5 1022.1 1018.8 ****** MAX. QFF PRESSURE IN HPA 1029.1 1025.8 1018.6 ****** 1015.1 1004.4 999.9 1004.1 1010.7 1018.6 1028.0 1025.8 ****** DAY 2 14 1 ** 14 4 16 18 30 22 26 27 MIN. QFF PRESSURE IN HPA 1011.2 1008.5 1003.5 ****** 1001.2 993.6 984.8 994.6 998.1 1008.7 1009.6 1010.3 ****** DAY 31 6 10 ** 2 13 10 6 8 2 7 11 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 864.5 863.5 862.5 ****** 861.9 857.1 853.6 857.0 859.3 864.5 867.0 864.6 ****** MAX. QFE PRESSURE IN HPA 869.8 870.2 866.6 ****** 866.1 861.8 856.0 860.0 863.6 867.4 870.6 870.0 ****** DAY 2 13 28 ** 13 2 16 18 22 7 3 5 MIN. QFE PRESSURE IN HPA 860.1 856.5 856.4 ****** 858.3 853.6 847.2 853.7 855.7 861.5 861.1 859.7 ****** DAY 31 3 10 ** 2 21 9 2 6 10 7 11 MEAN QNH PRESSURE IN HPA 1019.1 1018.0 1016.8 ****** 1016.2 1010.7 1006.7 1010.6 1013.2 1019.1 1021.9 1019.2 ****** MAX. QNH PRESSURE IN HPA 1025.2 1025.6 1021.5 ****** 1020.9 1016.0 1009.4 1014.0 1018.1 1022.4 1026.1 1025.4 ****** DAY 2 13 28 ** 13 2 16 18 22 7 3 5 MIN. QNH PRESSURE IN HPA 1014.1 1010.0 1009.8 ****** 1012.0 1006.6 999.3 1006.8 1009.0 1015.7 1015.2 1013.6 ****** DAY 31 3 10 ** 2 21 9 2 6 10 7 11 MEAN QFF PRESSURE IN HPA 1016.6 1014.9 1009.8 ****** 1006.0 997.7 992.9 998.4 1002.2 1011.6 1019.6 1016.0 ****** MAX. QFF PRESSURE IN HPA 1025.9 1025.2 1016.0 ****** 1012.4 1003.9 998.4 1002.7 1009.2 1016.8 1025.4 1022.0 ****** DAY 2 13 2 ** 14 2 16 9 30 22 26 22 MIN. QFF PRESSURE IN HPA 1007.8 1006.0 1001.6 ****** 1000.1 994.0 984.3 992.2 995.7 1007.4 1008.5 1007.2 ****** DAY 31 3 10 ** 2 30 10 3 6 10 7 11 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 863.6 862.6 861.5 ****** 860.6 856.0 852.4 855.7 858.2 863.4 866.1 863.8 ****** MAX. QFE PRESSURE IN HPA 868.6 867.9 866.1 ****** 865.8 860.1 855.2 858.8 862.3 865.9 870.0 869.0 ****** DAY 2 13 28 ** 13 3 16 18 21 26 3 5 MIN. QFE PRESSURE IN HPA 858.4 855.8 855.6 ****** 857.0 852.5 846.0 853.0 854.9 858.5 860.0 859.1 ****** DAY 30 3 10 ** 2 21 9 1 3 10 7 11 MEAN QNH PRESSURE IN HPA 1018.1 1016.9 1015.6 ****** 1014.7 1009.4 1005.3 1009.1 1011.9 1017.8 1020.9 1018.3 ****** MAX. QNH PRESSURE IN HPA 1023.8 1023.0 1020.9 ****** 1020.6 1014.1 1008.5 1012.6 1016.6 1020.7 1025.4 1024.2 ****** DAY 2 13 28 ** 13 3 16 18 21 26 3 5 MIN. QNH PRESSURE IN HPA 1012.1 1009.2 1008.9 ****** 1010.5 1005.4 998.0 1006.0 1008.1 1012.2 1014.0 1012.9 ****** DAY 30 3 10 ** 2 21 9 1 3 10 7 11 MEAN QFF PRESSURE IN HPA 1016.1 1014.4 1008.9 ****** 1004.9 997.0 992.2 997.7 1001.7 1011.3 1019.5 1015.5 ****** MAX. QFF PRESSURE IN HPA 1025.5 1022.7 1015.6 ****** 1011.0 1003.3 997.6 1001.5 1008.7 1016.1 1025.0 1021.1 ****** DAY 2 13 3 ** 13 1 16 18 30 26 19 22 MIN. QFF PRESSURE IN HPA 1007.6 1006.1 1000.7 ****** 999.2 991.9 983.6 992.7 995.8 1005.7 1007.7 1006.9 ****** DAY 31 3 10 ** 2 12 10 2 5 10 7 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 864.3 863.2 862.2 ****** 860.9 856.2 853.2 856.0 858.7 864.0 866.6 864.6 ****** MAX. QFE PRESSURE IN HPA 869.5 868.4 867.5 ****** 866.6 860.5 864.5 859.2 863.0 866.8 870.6 869.8 ****** DAY 2 13 28 ** 13 1 18 18 21 21 3 5 MIN. QFE PRESSURE IN HPA 858.2 856.1 858.1 ****** 857.0 852.8 846.5 853.5 855.1 861.2 860.6 860.1 ****** DAY 30 5 10 ** 2 21 9 2 5 1 7 11 MEAN QNH PRESSURE IN HPA 1018.9 1017.7 1016.4 ****** 1014.9 1009.7 1006.1 1009.4 1012.5 1018.5 1021.5 1019.2 ****** MAX. QNH PRESSURE IN HPA 1024.8 1023.6 1022.5 ****** 1021.5 1014.5 1019.1 1013.0 1017.4 1021.7 1026.1 1025.2 ****** DAY 2 13 28 ** 13 1 18 18 21 21 3 5 MIN. QNH PRESSURE IN HPA 1011.9 1009.5 1011.8 ****** 1010.5 1005.7 998.5 1006.5 1008.4 1015.3 1014.6 1014.1 ****** DAY 30 5 10 ** 2 21 9 2 5 1 7 11 MEAN QFF PRESSURE IN HPA 1018.3 1016.7 1010.9 ****** 1005.3 997.3 993.3 998.5 1003.5 1013.5 1021.9 1017.9 ****** MAX. QFF PRESSURE IN HPA 1029.1 1024.5 1018.5 ****** 1012.8 1002.8 1008.5 1003.0 1010.2 1018.9 1028.6 1025.0 ****** DAY 2 13 28 ** 13 1 18 18 30 22 26 22 MIN. QFF PRESSURE IN HPA 1008.6 1007.7 1005.6 ****** 999.3 993.5 983.8 993.9 997.1 1007.9 1009.2 1008.9 ****** DAY 30 3 23 ** 2 30 10 2 5 1 7 11 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 865.2 864.3 863.4 ****** 862.1 857.2 854.1 857.3 860.0 865.0 867.5 865.5 ****** MAX. QFE PRESSURE IN HPA 871.1 870.0 868.1 ****** 868.6 862.0 856.8 859.9 864.0 867.9 872.3 871.1 ****** DAY 2 13 28 ** 13 1 15 17 21 6 3 5 MIN. QFE PRESSURE IN HPA 860.3 858.1 858.8 ****** 858.6 854.0 847.3 854.2 856.5 861.8 861.8 861.1 ****** DAY 30 5 9 ** 1 12 9 1 6 9 7 11 MEAN QNH PRESSURE IN HPA 1019.9 1018.9 1017.8 ****** 1016.4 1010.8 1007.3 1010.9 1014.0 1019.6 1022.5 1020.3 ****** MAX. QNH PRESSURE IN HPA 1026.6 1025.4 1023.2 ****** 1023.8 1016.2 1010.3 1013.8 1018.5 1023.0 1028.0 1026.6 ****** DAY 2 13 28 ** 13 1 15 17 21 6 3 5 MIN. QNH PRESSURE IN HPA 1014.3 1011.8 1012.6 ****** 1012.4 1007.1 999.4 1007.3 1010.0 1016.0 1016.0 1015.2 ****** DAY 30 5 9 ** 1 12 9 1 6 9 7 11 MEAN QFF PRESSURE IN HPA 1018.0 1016.6 1011.1 ****** 1006.2 997.6 993.6 998.8 1003.4 1012.7 1021.0 1017.7 ****** MAX. QFF PRESSURE IN HPA 1028.9 1025.5 1019.2 ****** 1015.8 1003.5 999.2 1003.2 1010.3 1018.4 1027.0 1023.5 ****** DAY 2 13 28 ** 13 1 15 27 29 22 26 22 MIN. QFF PRESSURE IN HPA 1009.7 1008.1 1005.4 ****** 999.8 992.4 985.1 993.5 996.7 1008.1 1007.9 1009.4 ****** DAY 30 24 9 ** 2 12 9 1 6 1 7 10 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 865.0 864.3 863.3 ****** 862.2 857.2 854.3 857.3 860.2 864.9 867.5 865.4 ****** MAX. QFE PRESSURE IN HPA 871.0 870.0 867.8 ****** 868.2 862.0 857.0 859.4 864.3 867.9 870.8 871.0 ****** DAY 2 13 28 ** 13 1 15 18 28 6 4 5 MIN. QFE PRESSURE IN HPA 860.9 858.1 858.8 ****** 858.4 853.0 847.3 854.1 856.3 862.1 862.0 861.3 ****** DAY 30 5 9 ** 1 12 9 1 6 1 7 11 MEAN QNH PRESSURE IN HPA 1019.7 1018.9 1017.7 ****** 1016.5 1010.8 1007.4 1010.9 1014.1 1019.6 1022.5 1020.1 ****** MAX. QNH PRESSURE IN HPA 1026.5 1025.4 1022.9 ****** 1023.3 1016.2 1010.5 1013.3 1018.9 1023.0 1026.3 1026.5 ****** DAY 2 13 28 ** 13 1 15 18 28 6 4 5 MIN. QNH PRESSURE IN HPA 1015.0 1011.8 1012.6 ****** 1012.1 1006.0 999.4 1007.2 1009.7 1016.4 1016.2 1015.4 ****** DAY 30 5 9 ** 1 12 9 1 6 1 7 11 MEAN QFF PRESSURE IN HPA 1017.0 1015.9 1010.6 ****** 1006.1 997.6 993.6 998.8 1003.3 1012.3 1020.4 1016.9 ****** MAX. QFF PRESSURE IN HPA 1027.6 1025.2 1017.8 ****** 1015.1 1003.7 999.1 1003.3 1010.7 1017.9 1026.6 1023.3 ****** DAY 2 13 28 ** 13 2 15 9 28 22 26 26 MIN. QFF PRESSURE IN HPA 1009.0 1008.0 1004.7 ****** 1000.6 991.7 983.7 992.6 996.3 1007.2 1008.6 1008.8 ****** DAY 31 3 9 ** 1 12 9 2 6 1 7 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.6 9.2 15.7 21.1 24.2 28.7 28.5 31.5 28.7 21.7 10.4 4.5 19.2 MINIMUN AIR TEMPERATURE (C) -0.3 3.5 8.2 12.9 16.0 18.7 19.1 19.7 14.7 9.8 3.0 -2.1 10.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 7 10 9 7 0 0 0 0 33 DAYS WITH MINIMUM TEMP. <=-4 6 2 0 0 0 0 0 0 0 0 1 11 20 DAYS WITH FREEZING MIN.<= 0 19 10 2 0 0 0 0 0 0 0 7 27 65 TEMPERATURE RECORDS LOWEST(C) -7.0 -4.0 -2.0 7.0 9.0 14.0 14.0 17.0 9.0 3.0 -4.0 -7.0 -7.0 DAY 4 4 10 3 5 24 7 10 21 29 5 16 MAXIMUM AIR TEMPERATURE (C) 13.3 15.6 23.1 29.2 32.1 35.4 36.5 37.5 34.4 29.8 19.3 13.2 26.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 15 20 30 31 31 30 20 0 0 177 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 29.0 34.0 40.0 40.0 40.0 42.0 39.0 35.0 26.0 19.0 42.0 DAY 31 1 20 14 31 6 27 18 3 3 13 26 DIF. BETWEEN (MAX.-MIN.) (C) 13.6 12.1 14.9 16.3 16.1 16.7 17.4 17.8 19.7 20.0 16.3 15.3 16.3 MEAN DAILY TEMP. (MDT) (C) 6.5 9.6 15.6 21.0 24.0 27.0 27.8 28.6 24.6 19.8 11.1 5.5 18.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 5.5 28.5 110.0 181.5 210.0 235.5 108.5 21.0 0.0 0.0 900.5 HEATING DEG. DAYS(BASE 18 0C) 356.5 236.0 95.5 4.0 1.0 0.0 0.0 0.0 0.0 16.5 205.5 386.5 1301.5 DEWPOINT (MEAN C) -1.9 -4.1 0.6 3.0 1.4 -1.7 1.5 0.9 0.9 -1.6 -2.8 -4.1 -0.7 MIXING RATIO (G/KG) 4.07 3.55 5.05 5.78 5.26 4.11 5.19 4.96 4.87 4.05 3.82 3.39 4.51 VAPOUR PRESSURE (HPA) 5.62 4.88 6.94 7.95 7.21 5.63 7.07 6.77 6.67 5.59 5.28 4.70 6.19 SATURATION DEF. (HPA) 4.03 7.53 12.34 18.68 25.45 35.54 33.87 41.36 34.57 22.75 8.42 4.40 20.74 RELATIVE HUMIDITY (MEAN %) 62 43 40 34 27 15 19 16 18 24 46 59 34 RELATIVE HUMIDITY (MAX. %) 82 65 65 52 45 26 31 26 33 44 68 84 52 RELATIVE HUMIDITY (MIN. %) 40 23 21 19 14 9 10 9 11 12 27 30 19 RELATIVE HUMIDITY (MEAN% 03UTC) 76 59 57 46 38 24 28 25 33 43 62 77 47 RELATIVE HUMIDITY (MEAN% 09UTC) 45 30 28 22 18 10 13 11 12 14 31 33 22 RELATIVE HUMIDITY (MEAN% 15UTC) 58 37 29 28 18 12 13 13 16 22 41 54 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 60.2 14.0 17.0 0.0 22.3 0.0 0.0 0.0 0.0 0.0 41.7 25.0 180.2 DAYS WITH PRECIPITATION >=10 2 0 0 0 1 0 0 0 0 0 2 2 7 DAYS WITH PRECIPITATION >= 5 2 2 2 0 1 0 0 0 0 0 3 2 12 DAYS WITH PRECIPITATION >= 1 7 3 3 0 1 0 0 0 0 0 6 2 22 DAYS WITH PRECIPITATION 10 5 4 0 3 0 0 0 0 0 7 2 31 GREATEST DAILY PRECIPITATION 30.0 5.0 8.0 0.0 22.0 0.0 0.0 0.0 0.0 0.0 17.6 14.0 30.0 DAY 17 17 9 ** 16 ** ** ** ** ** 30 1 DAY WITH THUNDER STORM 0 0 0 1 1 0 0 0 0 0 0 0 2 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 2 2 DAYS WITH DUST 3 17 10 7 6 7 7 9 2 11 4 2 85 WIND DIRECTION (PREVAILING) 225 225 225 360 360 45 45 45 45 360 360 360 360 PREVAILING WIND SPEED(KNOTS) 14.2 24.3 19.4 7.7 10.2 13.4 11.6 14.7 11.9 12.6 9.2 7.7 10.0 PREVAILING WIND PERCENT 14.9 39.3 33.1 20.8 29.7 28.4 30.2 31.6 35.3 25.4 27.1 23.4 21.3 CALMS PERCENT OF WIND 41.1 16.5 31.0 37.9 32.4 29.4 37.9 28.2 40.7 36.7 49.2 48.4 36.1 NO. OF WIND OBSERVATION 248 224 248 240 219 197 248 177 150 177 240 248 2616 VECTOR WIND DIRECTION (MEAN) 216 224 225 268 344 21 20 22 30 24 21 44 359 VECTOR WIND MAGNITUDE(KNOTS) 2.4 9.9 5.9 1.2 2.9 6.1 5.8 8.4 6.2 4.7 2.1 1.2 1.8 WIND STEADINESES (MEAN %) 37.5 66.9 59.0 16.7 37.7 70.9 84.1 86.6 91.2 61.0 39.6 24.5 22.5 WIND SPEED (MEAN KNOTS) 6.4 14.8 10.0 7.2 7.7 8.6 6.9 9.7 6.8 7.7 5.3 4.9 8.0 FASTEST WIND DIRECTION 210 230 230 230 230 360 360 20 50 230 180 130 230 FASTEST WIND SPEED (KNOTS) 38 48 50 36 24 30 30 28 20 24 25 26 50 DAY 23 17 1 1 2 25 20 7 1 8 26 20 DAYS WITH SKY CLEAR (0-2)/8 15 12 13 14 17 28 26 28 27 28 12 18 238 DAYS WITH P.CLOUDY (3-6)/8 10 14 13 15 12 2 5 3 3 3 11 12 103 DAYS WITH CLOUDY (7-8)/8 6 2 5 1 2 0 0 0 0 0 7 1 24 DAYS WITH VISIBILITY =< 2 KM 2 5 3 1 0 1 1 3 0 0 0 1 17 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 865.0 861.1 863.3 863.3 860.1 858.1 854.5 855.0 858.4 864.4 866.1 867.8 861.4 MAX. QFE PRESSURE IN HPA 870.8 867.6 868.4 869.2 867.7 862.5 857.4 859.7 863.9 872.4 871.8 877.0 877.0 DAY-HOUR 30- 6 23- 6 15- 6 9- 6 28- 3 17- 3 15- 3 28- 3 27- 6 21- 3 22- 6 30-18 MIN. QFE PRESSURE IN HPA 855.3 850.8 853.7 855.5 852.0 848.2 849.5 850.4 853.0 855.4 860.9 861.1 848.2 DAY-HOUR 23-15 17-12 1- 6 19-12 31-15 28-12 2-15 2-12 11-12 19-12 14- 9 12-12 MEAN QNH PRESSURE IN HPA 1019.7 1015.2 1017.7 1017.7 1014.1 1011.7 1007.6 1008.2 1012.1 1019.0 1020.9 1022.9 1015.6 MAX. QNH PRESSURE IN HPA 1026.3 1022.6 1023.6 1024.5 1022.8 1016.8 1011.0 1013.6 1018.4 1028.1 1027.4 1033.4 1033.4 DAY-HOUR 30- 6 23- 6 15- 6 9- 6 28- 3 17- 3 15- 3 28- 3 27- 6 21- 3 22- 6 30-18 MIN. QNH PRESSURE IN HPA 1008.6 1003.4 1006.8 1008.8 1004.8 1000.5 1002.0 1003.0 1006.0 1008.7 1015.0 1015.2 1000.5 DAY-HOUR 23-15 17-12 1- 6 19-12 31-15 28-12 2-15 2-12 11-12 19-12 14- 9 12-12 MEAN QFF PRESSURE IN HPA 1019.8 1013.2 1012.0 1008.9 1004.7 999.4 994.9 ****** ****** ****** 1018.3 1023.8 ****** MAX. QFF PRESSURE IN HPA 1029.0 1022.9 1023.1 1017.9 1013.4 1006.6 999.6 ****** ****** ****** 1025.2 1035.7 ****** DAY-HOUR 6- 3 23- 3 10- 3 4- 3 5- 3 17- 3 8- 0 **-** **-** **-** 22- 3 30-18 MIN. QFF PRESSURE IN HPA 1006.1 998.2 1002.1 998.4 992.4 987.8 988.5 ****** ****** ****** 1008.2 1012.7 ****** DAY-HOUR 23- 9 17-12 1- 6 19-12 31-15 28-15 2-12 **-** **-** **-** 14- 9 1-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 865.0 861.0 862.9 863.0 860.7 857.6 854.8 ****** ****** ****** 866.4 867.9 ****** MAX. QFE PRESSURE IN HPA 868.6 865.6 867.0 867.7 865.5 861.8 856.9 ****** ****** ****** 869.6 872.0 ****** DAY 6 1 17 9 1 17 8 ** ** ** 23 18 MIN. QFE PRESSURE IN HPA 857.9 856.9 855.2 856.7 856.0 850.9 850.8 ****** ****** ****** 862.7 863.1 ****** DAY 24 9 1 20 3 29 3 ** ** ** 14 2 MEAN QNH PRESSURE IN HPA 1019.6 1015.1 1017.3 1017.4 1014.7 1011.2 1008.0 ****** ****** ****** 1021.3 1022.9 ****** MAX. QNH PRESSURE IN HPA 1023.8 1020.4 1022.0 1022.8 1020.2 1016.0 1010.4 ****** ****** ****** 1024.9 1027.7 ****** DAY 6 1 17 9 1 17 8 ** ** ** 23 18 MIN. QNH PRESSURE IN HPA 1011.6 1010.4 1008.5 1010.2 1009.4 1003.6 1003.4 ****** ****** ****** 1017.0 1017.5 ****** DAY 24 9 1 20 3 29 3 ** ** ** 14 2 MEAN QFF PRESSURE IN HPA 1019.4 1012.7 1011.4 1008.9 1005.4 999.6 995.7 ****** ****** ****** 1018.3 1023.5 ****** MAX. QFF PRESSURE IN HPA 1026.7 1020.0 1022.1 1016.4 1012.5 1005.3 999.6 ****** ****** ****** 1022.8 1031.4 ****** DAY 6 23 10 4 5 17 8 ** ** ** 5 17 MIN. QFF PRESSURE IN HPA 1010.7 1003.5 1002.5 999.7 996.9 990.4 989.8 ****** ****** ****** 1010.7 1013.8 ****** DAY 24 9 1 20 3 29 3 ** ** ** 14 2 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 865.4 861.7 863.6 863.9 861.1 859.1 855.5 855.9 859.4 865.4 866.4 868.1 862.1 MAX. QFE PRESSURE IN HPA 868.8 866.4 867.6 868.8 867.7 862.5 857.4 859.7 863.2 872.4 870.7 872.2 872.4 DAY 6 23 21 9 28 17 15 28 27 21 22 18 MIN. QFE PRESSURE IN HPA 858.8 856.5 854.7 858.9 854.7 851.7 851.3 852.1 856.6 859.1 862.0 863.6 851.3 DAY 2 17 1 20 31 28 3 2 3 31 26 13 MEAN QNH PRESSURE IN HPA 1020.1 1015.9 1018.0 1018.4 1015.2 1012.9 1008.8 1009.3 1013.3 1020.2 1021.3 1023.2 1016.4 MAX. QNH PRESSURE IN HPA 1024.0 1021.3 1022.6 1024.0 1022.8 1016.8 1011.0 1013.6 1017.6 1028.1 1026.2 1027.9 1028.1 DAY 6 23 21 9 28 17 15 28 27 21 22 18 MIN. QNH PRESSURE IN HPA 1012.6 1010.0 1007.9 1012.7 1007.9 1004.5 1004.0 1004.9 1010.1 1012.9 1016.2 1018.1 1004.0 DAY 2 17 1 20 31 28 3 2 3 31 26 13 MEAN QFF PRESSURE IN HPA 1021.6 1014.9 1013.3 1010.5 1005.4 1001.1 996.7 996.8 1003.3 1013.6 1020.2 1025.4 1010.2 MAX. QFF PRESSURE IN HPA 1029.0 1022.9 1023.1 1017.9 1013.4 1006.6 999.5 1001.7 1009.6 1023.4 1025.2 1032.8 1032.8 DAY 6 23 10 4 5 17 17 28 27 21 22 16 MIN. QFF PRESSURE IN HPA 1009.3 1006.0 1002.9 1003.0 995.6 991.2 991.1 992.1 999.1 1006.7 1011.2 1016.9 991.1 DAY 23 17 1 19 31 2 3 2 3 5 26 13 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 866.3 862.6 864.5 864.4 861.0 859.2 855.3 856.1 859.5 865.7 867.2 869.2 862.6 MAX. QFE PRESSURE IN HPA 870.8 867.6 868.4 869.2 865.2 862.2 857.4 859.7 863.9 871.9 871.8 874.8 874.8 DAY 30 23 15 9 22 17 17 28 27 21 22 17 MIN. QFE PRESSURE IN HPA 859.3 855.9 853.7 858.8 854.5 851.6 851.3 852.4 856.6 860.7 862.3 864.0 851.3 DAY 23 17 1 19 31 28 3 2 6 31 14 13 MEAN QNH PRESSURE IN HPA 1021.2 1017.0 1019.1 1019.0 1015.1 1013.1 1008.5 1009.5 1013.4 1020.5 1022.2 1024.4 1016.9 MAX. QNH PRESSURE IN HPA 1026.3 1022.6 1023.6 1024.5 1019.9 1016.5 1011.0 1013.6 1018.4 1027.6 1027.4 1030.9 1030.9 DAY 30 23 15 9 22 17 17 28 27 21 22 17 MIN. QNH PRESSURE IN HPA 1013.2 1009.3 1006.8 1012.6 1007.7 1004.4 1004.0 1005.3 1010.1 1014.8 1016.6 1018.5 1004.0 DAY 23 17 1 19 31 28 3 2 6 31 14 13 MEAN QFF PRESSURE IN HPA 1021.3 1015.0 1013.3 1009.8 1006.4 999.7 995.4 ****** ****** ****** 1019.2 1025.6 ****** MAX. QFF PRESSURE IN HPA 1027.9 1022.6 1022.7 1017.0 1012.1 1005.3 998.7 ****** ****** ****** 1024.9 1035.0 ****** DAY 6 23 10 4 4 17 8 ** ** ** 22 17 MIN. QFF PRESSURE IN HPA 1009.5 1005.3 1002.1 1001.9 1001.3 991.3 990.1 ****** ****** ****** 1010.3 1016.7 ****** DAY 23 17 1 19 2 28 3 ** ** ** 14 13 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 864.3 861.0 863.3 863.3 860.1 858.5 854.3 855.1 858.2 864.0 865.5 867.4 861.2 MAX. QFE PRESSURE IN HPA 869.2 865.6 866.7 868.8 864.1 861.6 856.1 858.3 862.2 869.4 869.2 873.0 873.0 DAY 30 23 21 8 7 13 12 28 27 20 22 17 MIN. QFE PRESSURE IN HPA 856.3 853.2 854.5 856.9 853.9 852.3 851.3 851.6 855.2 858.1 860.9 862.8 851.3 DAY 23 17 1 19 31 28 3 3 6 5 14 12 MEAN QNH PRESSURE IN HPA 1018.8 1015.1 1017.7 1017.7 1014.0 1012.2 1007.5 1008.4 1011.9 1018.6 1020.2 1022.4 1015.4 MAX. QNH PRESSURE IN HPA 1024.5 1020.4 1021.6 1024.0 1018.6 1015.8 1009.5 1012.0 1016.5 1024.7 1024.5 1028.8 1028.8 DAY 30 23 21 8 7 13 12 28 27 20 22 17 MIN. QNH PRESSURE IN HPA 1009.7 1006.2 1007.7 1010.4 1007.0 1005.2 1004.0 1004.4 1008.5 1011.8 1015.0 1017.2 1004.0 DAY 23 17 1 19 31 28 3 3 6 5 14 12 MEAN QFF PRESSURE IN HPA 1018.0 1012.4 1011.3 1008.3 1005.0 998.9 994.1 ****** ****** ****** 1016.6 1022.2 ****** MAX. QFF PRESSURE IN HPA 1023.8 1019.0 1019.5 1014.9 1010.4 1004.6 997.4 ****** ****** ****** 1021.6 1031.8 ****** DAY 3 23 10 9 7 17 8 ** ** ** 30 17 MIN. QFF PRESSURE IN HPA 1006.1 1002.3 1002.5 1000.0 999.4 992.2 989.4 ****** ****** ****** 1008.2 1014.6 ****** DAY 23 17 1 19 2 27 28 ** ** ** 14 1 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 863.6 859.5 862.1 861.8 858.5 857.1 853.1 854.0 857.0 862.7 864.7 866.4 860.1 MAX. QFE PRESSURE IN HPA 867.3 864.6 867.0 865.8 862.2 860.8 854.9 856.8 861.0 869.0 867.9 872.5 872.5 DAY 30 23 21 9 22 17 8 28 24 20 22 17 MIN. QFE PRESSURE IN HPA 855.9 850.8 855.5 855.5 852.3 848.2 849.8 850.4 853.0 855.4 860.9 861.1 848.2 DAY 23 17 1 19 30 28 2 2 11 19 14 12 MEAN QNH PRESSURE IN HPA 1018.1 1013.4 1016.3 1016.0 1012.2 1010.6 1006.1 1007.1 1010.6 1017.1 1019.4 1021.3 1014.0 MAX. QNH PRESSURE IN HPA 1022.3 1019.2 1022.0 1020.6 1016.5 1014.9 1008.1 1010.3 1015.1 1024.2 1023.0 1028.2 1028.2 DAY 30 23 21 9 22 17 8 28 24 20 22 17 MIN. QNH PRESSURE IN HPA 1009.3 1003.4 1008.8 1008.8 1005.2 1000.5 1002.3 1003.0 1006.0 1008.7 1015.0 1015.2 1000.5 DAY 23 17 1 19 30 28 2 2 11 19 14 12 MEAN QFF PRESSURE IN HPA 1017.7 1011.0 1010.3 1007.4 1003.8 998.1 993.8 ****** ****** ****** 1016.4 1021.8 ****** MAX. QFF PRESSURE IN HPA 1025.0 1018.6 1018.1 1013.6 1009.7 1003.9 997.7 ****** ****** ****** 1021.4 1031.9 ****** DAY 5 23 10 3 5 17 7 ** ** ** 30 17 MIN. QFF PRESSURE IN HPA 1006.8 998.2 1004.0 998.4 997.1 988.0 988.5 ****** ****** ****** 1010.5 1013.7 ****** DAY 23 17 27 19 2 28 2 ** ** ** 14 13 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 864.5 860.3 862.4 862.4 858.6 857.3 853.2 854.3 857.6 863.7 865.6 867.2 860.6 MAX. QFE PRESSURE IN HPA 868.2 865.4 866.6 866.2 862.5 860.8 855.0 857.3 861.7 869.6 870.0 873.1 873.1 DAY 30 23 9 9 5 17 4 28 27 20 22 17 MIN. QFE PRESSURE IN HPA 855.3 850.9 858.0 856.9 852.0 848.6 849.5 850.8 853.6 858.0 861.7 861.6 848.6 DAY 23 17 1 19 31 28 2 2 6 30 14 12 MEAN QNH PRESSURE IN HPA 1019.1 1014.4 1016.7 1016.7 1012.4 1010.9 1006.2 1007.4 1011.2 1018.2 1020.3 1022.2 1014.6 MAX. QNH PRESSURE IN HPA 1023.3 1020.1 1021.5 1021.0 1016.8 1014.9 1008.2 1010.9 1015.9 1024.9 1025.4 1028.9 1028.9 DAY 30 23 9 9 5 17 4 28 27 20 22 17 MIN. QNH PRESSURE IN HPA 1008.6 1003.6 1011.7 1010.4 1004.8 1000.9 1002.0 1003.4 1006.6 1011.7 1015.9 1015.8 1000.9 DAY 23 17 1 19 31 28 2 2 6 30 14 12 MEAN QFF PRESSURE IN HPA 1020.5 1013.4 1011.9 1008.7 1002.6 999.1 994.1 995.0 1001.2 1011.8 1019.3 1024.3 1008.5 MAX. QFF PRESSURE IN HPA 1028.3 1021.8 1020.0 1015.7 1010.8 1004.5 997.5 999.0 1007.9 1020.2 1025.0 1031.9 1031.9 DAY 5 23 2 3 4 9 7 28 30 25 22 16 MIN. QFF PRESSURE IN HPA 1006.2 999.2 1002.6 1001.4 992.4 987.8 988.5 990.7 996.0 1003.6 1011.4 1013.6 987.8 DAY 23 17 24 19 31 28 2 2 6 5 14 1 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 865.7 861.6 863.9 863.6 860.7 857.5 854.8 ****** ****** ****** 866.3 868.3 ****** MAX. QFE PRESSURE IN HPA 869.8 866.2 867.8 868.0 864.6 861.6 856.7 ****** ****** ****** 869.4 877.0 ****** DAY 6 23 9 8 4 16 17 ** ** ** 22 30 MIN. QFE PRESSURE IN HPA 857.0 857.2 859.4 856.7 856.3 850.5 851.4 ****** ****** ****** 862.4 862.5 ****** DAY 23 17 24 19 2 28 2 ** ** ** 13 12 MEAN QNH PRESSURE IN HPA 1020.4 1015.7 1018.4 1018.1 1014.8 1011.2 1008.0 ****** ****** ****** 1021.1 1023.5 ****** MAX. QNH PRESSURE IN HPA 1025.2 1021.0 1022.9 1023.1 1019.2 1015.8 1010.2 ****** ****** ****** 1024.7 1033.4 ****** DAY 6 23 9 8 4 16 17 ** ** ** 22 30 MIN. QNH PRESSURE IN HPA 1010.5 1010.8 1013.3 1010.2 1009.7 1003.1 1004.1 ****** ****** ****** 1016.7 1016.8 ****** DAY 23 17 24 19 2 28 2 ** ** ** 13 12 MEAN QFF PRESSURE IN HPA 1020.6 1013.7 1012.5 1009.0 1005.2 998.7 995.0 ****** ****** ****** 1018.3 1024.6 ****** MAX. QFF PRESSURE IN HPA 1028.0 1021.3 1022.6 1017.2 1012.9 1005.1 998.3 ****** ****** ****** 1022.5 1035.7 ****** DAY 5 23 9 3 4 16 4 ** ** ** 28 30 MIN. QFF PRESSURE IN HPA 1008.6 1006.8 1002.7 998.9 997.0 989.7 990.1 ****** ****** ****** 1010.4 1014.1 ****** DAY 23 28 24 19 2 28 2 ** ** ** 13 1 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 865.6 861.4 863.9 863.8 860.8 857.6 854.8 ****** ****** ****** 866.5 868.0 ****** MAX. QFE PRESSURE IN HPA 869.6 866.2 867.4 868.0 864.6 861.8 857.0 ****** ****** ****** 869.4 873.1 ****** DAY 6 23 2 8 4 16 7 ** ** ** 22 17 MIN. QFE PRESSURE IN HPA 857.2 858.0 860.0 856.9 857.2 851.4 851.4 ****** ****** ****** 862.5 863.0 ****** DAY 23 8 24 19 2 28 2 ** ** ** 13 1 MEAN QNH PRESSURE IN HPA 1020.3 1015.6 1018.4 1018.4 1014.9 1011.3 1008.1 ****** ****** ****** 1021.4 1023.1 ****** MAX. QNH PRESSURE IN HPA 1024.9 1021.0 1022.4 1023.1 1019.2 1016.0 1010.5 ****** ****** ****** 1024.7 1028.9 ****** DAY 6 23 2 8 4 16 7 ** ** ** 22 17 MIN. QNH PRESSURE IN HPA 1010.8 1011.7 1014.0 1010.4 1010.8 1004.1 1004.1 ****** ****** ****** 1016.8 1017.4 ****** DAY 23 8 24 19 2 28 2 ** ** ** 13 1 MEAN QFF PRESSURE IN HPA 1019.6 1012.8 1012.0 1009.0 1005.0 998.8 994.8 ****** ****** ****** 1017.7 1023.0 ****** MAX. QFF PRESSURE IN HPA 1026.5 1020.3 1022.8 1015.4 1012.3 1005.4 999.0 ****** ****** ****** 1021.8 1031.5 ****** DAY 5 23 9 3 4 16 7 ** ** ** 27 17 MIN. QFF PRESSURE IN HPA 1008.9 1004.7 1003.3 999.2 998.0 991.1 989.8 ****** ****** ****** 1009.5 1012.7 ****** DAY 23 8 24 19 2 28 2 ** ** ** 13 1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.3 11.9 12.7 20.3 26.1 31.7 31.9 30.8 25.8 20.9 14.0 8.2 20.1 MINIMUN AIR TEMPERATURE (C) 0.2 3.1 4.9 11.4 14.1 19.1 19.6 16.8 13.2 7.4 2.7 -2.5 9.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 3 7 12 3 2 0 0 0 27 DAYS WITH MINIMUM TEMP. <=-4 9 2 4 0 0 0 0 0 0 0 2 11 28 DAYS WITH FREEZING MIN.<= 0 19 9 7 0 0 0 0 0 0 0 7 26 68 TEMPERATURE RECORDS LOWEST(C) -7.0 -5.0 -6.0 4.0 7.0 13.0 14.0 14.0 8.0 4.0 -4.0 -7.0 -7.0 DAY 2 3 21 1 7 15 19 3 29 27 28 9 MAXIMUM AIR TEMPERATURE (C) 16.1 21.6 18.6 25.1 30.6 36.4 36.5 36.5 31.7 27.1 21.0 15.1 26.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 7 18 30 31 31 27 7 0 0 151 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 24.0 27.0 28.0 32.0 38.0 41.0 40.0 40.0 36.0 32.0 28.0 22.0 41.0 DAY 17 6 1 27 14 22 5 12 1 9 6 3 DIF. BETWEEN (MAX.-MIN.) (C) 15.9 18.5 13.7 13.7 16.5 17.3 16.9 19.7 18.5 19.7 18.3 17.6 17.2 MEAN DAILY TEMP. (MDT) (C) 8.1 12.4 11.8 18.2 22.3 27.8 28.1 26.6 22.4 17.2 11.9 6.3 17.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 16.5 73.5 203.5 219.5 174.5 51.5 0.5 0.0 0.0 739.5 HEATING DEG. DAYS(BASE 18 0C) 306.0 163.5 197.5 49.0 6.5 0.0 0.0 0.0 0.0 46.5 185.5 362.5 1317.0 DEWPOINT (MEAN C) -4.4 -2.9 -2.9 1.9 -0.2 -0.6 2.4 0.6 -2.5 -3.0 -2.9 -6.2 -1.7 MIXING RATIO (G/KG) 3.40 3.78 3.81 5.28 4.73 4.46 5.51 4.87 3.84 3.59 3.75 2.91 4.16 VAPOUR PRESSURE (HPA) 4.70 5.22 5.23 7.26 6.49 6.11 7.50 6.64 5.28 4.97 5.19 4.04 5.72 SATURATION DEF. (HPA) 6.50 10.08 10.67 18.10 29.18 42.17 41.40 39.75 29.71 21.50 12.24 7.62 22.41 RELATIVE HUMIDITY (MEAN %) 49 41 40 35 21 14 17 17 17 22 35 39 29 RELATIVE HUMIDITY (MAX. %) 74 65 64 54 36 25 26 32 30 39 59 59 47 RELATIVE HUMIDITY (MIN. %) 25 18 25 23 13 8 12 9 10 13 20 25 17 RELATIVE HUMIDITY (MEAN% 03UTC) 65 61 53 49 35 23 26 31 30 39 59 57 44 RELATIVE HUMIDITY (MEAN% 09UTC) 29 21 29 27 14 10 13 11 11 14 22 28 19 RELATIVE HUMIDITY (MEAN% 15UTC) 45 33 38 37 20 14 14 14 16 23 37 41 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 25.0 5.5 21.0 56.0 10.0 0.0 0.0 0.0 0.0 0.0 5.0 0.0 122.5 DAYS WITH PRECIPITATION >=10 1 0 0 2 1 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 1 1 2 3 1 0 0 0 0 0 1 0 9 DAYS WITH PRECIPITATION >= 1 1 1 8 6 1 0 0 0 0 0 1 0 18 DAYS WITH PRECIPITATION 2 3 8 7 1 0 0 0 0 1 1 1 24 GREATEST DAILY PRECIPITATION 25.0 5.0 8.0 23.0 10.0 0.0 0.0 0.0 0.0 0.0 5.0 0.0 25.0 DAY 11 14 30 16 3 ** ** ** ** ** 11 ** DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 1 0 0 0 1 DAYS WITH SNOW OR SLEET 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 4 6 11 4 2 1 1 5 4 3 1 0 42 WIND DIRECTION (PREVAILING) 360 360 225 225 360 45 45 360 360 360 360 360 360 PREVAILING WIND SPEED(KNOTS) 7.8 8.2 21.6 18.1 8.7 9.8 9.1 11.1 11.4 9.6 9.8 8.1 9.5 PREVAILING WIND PERCENT 18.1 13.4 29.5 16.7 36.8 35.8 38.1 43.9 46.0 32.7 26.7 33.5 27.3 CALMS PERCENT OF WIND 39.9 45.7 20.5 22.0 29.0 27.2 20.0 4.5 4.0 33.3 32.0 38.1 27.6 NO. OF WIND OBSERVATION 248 232 210 150 155 151 155 155 150 156 150 155 2067 VECTOR WIND DIRECTION (MEAN) 172 197 225 221 16 32 27 20 20 20 26 9 18 VECTOR WIND MAGNITUDE(KNOTS) 1.0 0.6 5.7 1.4 4.3 5.6 5.9 6.2 7.2 4.8 1.7 3.4 2.6 WIND STEADINESES (MEAN %) 15.2 10.5 46.7 15.9 67.2 81.2 81.9 68.9 75.8 71.6 26.6 60.7 34.2 WIND SPEED (MEAN KNOTS) 6.6 5.7 12.2 8.8 6.4 6.9 7.2 9.0 9.5 6.7 6.4 5.6 7.6 FASTEST WIND DIRECTION 210 210 230 230 50 50 30 360 360 30 230 270 230 FASTEST WIND SPEED (KNOTS) 25 25 40 30 20 20 25 24 24 22 25 22 40 DAY 8 19 12 11 25 26 17 14 1 12 20 31 DAYS WITH SKY CLEAR (0-2)/8 18 18 14 3 24 27 21 23 25 30 22 15 240 DAYS WITH P.CLOUDY (3-6)/8 8 9 11 21 6 3 10 8 4 1 7 10 98 DAYS WITH CLOUDY (7-8)/8 5 2 6 6 1 0 0 0 1 0 1 6 28 DAYS WITH VISIBILITY =< 2 KM 1 1 8 3 0 0 1 0 0 0 0 0 14 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 866.6 865.9 861.4 862.5 862.0 857.8 855.3 856.0 861.6 866.0 867.0 866.9 862.4 MAX. QFE PRESSURE IN HPA 872.7 875.0 868.5 870.8 888.1 862.9 865.4 885.2 882.4 872.0 878.3 874.0 888.1 DAY-HOUR 29-18 2- 6 22- 6 8- 3 7- 3 3- 3 18- 3 1- 3 27- 6 30- 6 14- 3 5- 6 MIN. QFE PRESSURE IN HPA 858.1 859.3 853.9 856.0 853.9 852.0 849.0 851.7 856.0 859.2 860.0 858.7 849.0 DAY-HOUR 27-21 29-15 9-12 21-12 31-12 30-12 8-15 12-12 2-12 11-12 20- 9 30-12 MEAN QNH PRESSURE IN HPA 1021.5 1020.7 1015.5 1016.8 1016.2 1011.4 1008.5 1009.4 1015.8 1020.8 1021.9 1021.8 1016.7 MAX. QNH PRESSURE IN HPA 1028.5 1031.1 1023.7 1026.3 1046.1 1017.3 1020.1 1042.8 1039.6 1027.7 1034.9 1030.0 1046.1 DAY-HOUR 29-18 2- 6 22- 6 8- 3 7- 3 3- 3 18- 3 1- 3 27- 6 30- 6 14- 3 5- 6 MIN. QNH PRESSURE IN HPA 1011.8 1013.2 1007.0 1009.4 1007.0 1004.8 1001.4 1004.5 1009.4 1013.0 1014.0 1012.5 1001.4 DAY-HOUR 27-21 29-15 9-12 21-12 31-12 30-12 8-15 12-12 2-12 11-12 20- 9 30-12 MEAN QFF PRESSURE IN HPA 1020.7 1017.3 1010.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1032.4 1032.3 1024.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 29-18 2- 3 22- 3 **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA 1006.1 1007.4 1000.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 27-21 29-12 9-12 **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 866.6 866.3 860.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 870.5 873.2 866.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 3 3 17 ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 860.0 862.2 855.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 28 20 10 ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1021.5 1021.2 1014.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1026.0 1029.0 1020.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 3 3 17 ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1014.0 1016.5 1009.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 28 20 10 ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1020.2 1017.5 1009.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1027.2 1029.3 1021.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 2 17 ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1008.5 1010.8 1002.1 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 28 29 10 ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 866.8 866.3 861.8 863.3 863.5 858.8 856.6 857.9 862.3 866.8 867.9 867.2 863.3 MAX. QFE PRESSURE IN HPA 870.0 873.5 867.5 870.8 888.1 862.9 865.4 885.2 865.0 870.7 878.3 873.0 888.1 DAY 2 2 22 8 7 3 18 1 25 30 14 6 MIN. QFE PRESSURE IN HPA 859.7 862.0 856.3 859.4 857.4 854.5 852.6 854.3 857.8 862.2 860.5 859.2 852.6 DAY 28 10 9 21 31 30 8 12 1 11 20 30 MEAN QNH PRESSURE IN HPA 1021.7 1021.2 1016.1 1017.7 1018.0 1012.6 1010.0 1011.5 1016.6 1021.7 1022.9 1022.2 1017.7 MAX. QNH PRESSURE IN HPA 1025.4 1029.4 1022.5 1026.3 1046.1 1017.3 1020.1 1042.8 1019.7 1026.2 1034.9 1028.8 1046.1 DAY 2 2 22 8 7 3 18 1 25 30 14 6 MIN. QNH PRESSURE IN HPA 1013.6 1016.2 1009.7 1013.3 1011.0 1007.7 1005.5 1007.4 1011.4 1016.5 1014.5 1013.0 1005.5 DAY 28 10 9 21 31 30 8 12 1 11 20 30 MEAN QFF PRESSURE IN HPA 1022.5 1019.5 1013.6 1011.5 1008.7 1000.3 997.6 1000.3 1008.2 1016.6 1021.8 1024.2 1012.1 MAX. QFF PRESSURE IN HPA 1030.3 1032.3 1024.3 1022.5 1041.3 1005.6 1009.6 1032.6 1012.9 1024.0 1035.2 1033.0 1041.3 DAY 2 2 22 8 7 3 18 1 26 30 14 6 MIN. QFF PRESSURE IN HPA 1009.4 1011.5 1004.0 1004.1 999.6 995.2 991.2 995.4 999.5 1010.1 1008.1 1015.8 991.2 DAY 28 10 9 21 17 30 8 12 1 11 20 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 867.9 867.3 862.8 863.7 863.0 858.7 856.2 857.0 863.4 867.4 868.4 868.5 863.7 MAX. QFE PRESSURE IN HPA 871.6 875.0 868.5 870.8 869.3 862.9 859.3 859.2 882.4 872.0 872.1 874.0 882.4 DAY 2 2 22 8 6 3 17 30 27 30 16 5 MIN. QFE PRESSURE IN HPA 861.0 862.9 857.0 859.4 856.7 854.8 852.3 854.2 858.3 862.5 862.0 861.0 852.3 DAY 28 29 8 21 31 30 8 12 2 11 20 30 MEAN QNH PRESSURE IN HPA 1022.9 1022.3 1017.1 1018.2 1017.3 1012.5 1009.6 1010.5 1017.9 1022.4 1023.5 1023.7 1018.2 MAX. QNH PRESSURE IN HPA 1027.2 1031.1 1023.7 1026.3 1024.6 1017.3 1013.2 1013.0 1039.6 1027.7 1027.8 1030.0 1039.6 DAY 2 2 22 8 6 3 17 30 27 30 16 5 MIN. QNH PRESSURE IN HPA 1015.1 1017.3 1010.5 1013.3 1010.2 1008.0 1005.2 1007.3 1012.0 1016.8 1016.2 1015.1 1005.2 DAY 28 29 8 21 31 30 8 12 2 11 20 30 MEAN QFF PRESSURE IN HPA 1022.4 1018.8 1010.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1029.7 1031.2 1023.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 2 16 ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1011.5 1011.7 1004.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 28 29 8 ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 866.0 865.6 861.7 862.5 861.8 857.9 855.2 855.6 861.2 865.7 866.4 866.2 862.2 MAX. QFE PRESSURE IN HPA 869.4 873.5 867.0 869.2 868.2 862.2 859.1 858.0 864.0 870.4 870.6 872.0 873.5 DAY 2 2 16 8 6 3 16 31 25 30 16 5 MIN. QFE PRESSURE IN HPA 860.5 861.2 855.8 857.5 854.9 853.8 851.5 853.0 857.6 860.6 860.0 858.8 851.5 DAY 27 29 9 21 31 30 8 12 1 11 20 30 MEAN QNH PRESSURE IN HPA 1020.8 1020.4 1015.9 1016.9 1016.0 1011.5 1008.5 1009.0 1015.4 1020.5 1021.2 1021.1 1016.4 MAX. QNH PRESSURE IN HPA 1024.7 1029.4 1022.0 1024.5 1023.3 1016.5 1012.9 1011.7 1018.5 1025.8 1026.1 1027.7 1029.4 DAY 2 2 16 8 6 3 16 31 25 30 16 5 MIN. QNH PRESSURE IN HPA 1014.5 1015.3 1009.2 1011.1 1008.1 1006.9 1004.2 1006.0 1011.2 1014.6 1014.0 1012.6 1004.2 DAY 27 29 9 21 31 30 8 12 1 11 20 30 MEAN QFF PRESSURE IN HPA 1019.1 1015.9 1008.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1026.3 1029.0 1022.5 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 2 16 ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1009.4 1008.8 1003.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 27 29 9 ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 865.3 864.4 860.7 861.3 860.7 856.9 854.2 854.7 860.2 864.8 865.6 865.7 861.2 MAX. QFE PRESSURE IN HPA 869.1 872.2 866.3 867.7 867.2 860.3 858.5 857.5 862.5 869.5 869.6 871.3 872.2 DAY 2 2 30 8 6 3 16 31 25 31 16 5 MIN. QFE PRESSURE IN HPA 859.9 859.6 853.9 856.0 853.9 852.0 849.6 851.7 856.0 859.2 860.2 858.7 849.6 DAY 27 29 9 21 31 30 8 12 2 11 20 30 MEAN QNH PRESSURE IN HPA 1020.0 1019.0 1014.7 1015.5 1014.7 1010.4 1007.4 1007.9 1014.2 1019.4 1020.4 1020.5 1015.3 MAX. QNH PRESSURE IN HPA 1024.4 1027.9 1021.2 1022.8 1022.2 1014.3 1012.2 1011.1 1016.8 1024.8 1024.9 1026.9 1027.9 DAY 2 2 30 8 6 3 16 31 25 31 16 5 MIN. QNH PRESSURE IN HPA 1013.8 1013.5 1007.0 1009.4 1007.0 1004.8 1002.1 1004.5 1009.4 1013.0 1014.2 1012.5 1002.1 DAY 27 29 9 21 31 30 8 12 2 11 20 30 MEAN QFF PRESSURE IN HPA 1018.6 1015.1 1008.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1026.3 1027.9 1021.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 2 16 ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1008.8 1007.4 1000.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 27 29 9 ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 866.1 865.1 861.5 861.6 861.1 856.9 854.2 855.0 860.9 865.6 866.7 866.7 861.8 MAX. QFE PRESSURE IN HPA 870.0 872.9 866.6 868.0 867.7 860.3 858.4 858.0 862.8 870.2 870.6 872.5 872.9 DAY 19 2 30 8 6 3 16 30 12 30 16 5 MIN. QFE PRESSURE IN HPA 860.4 859.3 855.0 856.0 855.2 852.0 849.0 852.0 856.2 860.0 861.7 859.6 849.0 DAY 27 29 9 21 17 30 8 12 2 11 19 29 MEAN QNH PRESSURE IN HPA 1021.0 1019.8 1015.6 1015.8 1015.3 1010.4 1007.3 1008.3 1015.0 1020.4 1021.6 1021.7 1016.0 MAX. QNH PRESSURE IN HPA 1025.4 1028.7 1021.5 1023.1 1022.8 1014.3 1012.1 1011.7 1017.2 1025.6 1026.1 1028.2 1028.7 DAY 19 2 30 8 6 3 16 30 12 30 16 5 MIN. QNH PRESSURE IN HPA 1014.4 1013.2 1008.2 1009.4 1008.5 1004.8 1001.4 1004.8 1009.6 1014.0 1015.9 1013.5 1001.4 DAY 27 29 9 21 17 30 8 12 2 11 19 29 MEAN QFF PRESSURE IN HPA 1021.7 1017.9 1013.2 1009.4 1005.9 998.1 994.9 997.0 1006.7 1015.3 1020.5 1023.6 1010.3 MAX. QFF PRESSURE IN HPA 1029.2 1031.0 1023.1 1020.4 1017.7 1003.7 999.7 1000.0 1010.5 1023.1 1027.6 1031.8 1031.8 DAY 2 2 16 8 6 16 19 31 30 30 27 5 MIN. QFF PRESSURE IN HPA 1010.4 1009.5 1002.1 1000.5 995.4 991.7 987.2 992.3 998.7 1007.1 1009.7 1015.2 987.2 DAY 27 29 9 21 17 22 8 12 1 11 20 30 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 867.2 866.2 860.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 872.7 873.2 867.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 29 2 16 ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 859.6 861.4 855.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 27 29 9 ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1022.2 1021.1 1014.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1028.5 1029.0 1022.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 29 2 16 ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1013.5 1015.6 1008.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 27 29 9 ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1021.6 1017.6 1010.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1032.4 1029.9 1023.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 29 1 16 ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1008.6 1009.9 1001.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 27 29 9 ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 866.8 866.3 860.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 870.8 873.5 867.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 2 16 ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 858.1 862.0 855.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 27 29 9 ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1021.7 1021.2 1014.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1026.3 1029.4 1022.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 2 16 ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1011.8 1016.2 1008.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 27 29 9 ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1020.0 1016.6 1009.5 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1026.9 1029.4 1022.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 29 2 16 ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1006.1 1009.6 1000.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 27 29 9 ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.3 9.9 16.1 18.3 24.7 27.6 29.7 26.9 24.3 16.0 10.9 8.5 18.4 MINIMUN AIR TEMPERATURE (C) 0.3 1.0 8.7 9.6 15.9 18.4 20.0 16.8 14.3 5.8 1.9 0.4 9.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 2 5 11 3 1 0 0 0 22 DAYS WITH MINIMUM TEMP. <=-4 8 4 0 0 0 0 0 0 0 1 2 6 21 DAYS WITH FREEZING MIN.<= 0 14 14 2 0 0 0 0 0 0 3 14 18 65 TEMPERATURE RECORDS LOWEST(C) -11.0 -6.0 -2.0 3.0 10.0 11.0 14.0 12.0 7.0 -4.0 -6.0 -5.0 -11.0 DAY 11 7 5 4 4 10 3 28 29 30 27 3 MAXIMUM AIR TEMPERATURE (C) 13.5 15.8 22.9 24.3 33.0 35.7 37.7 35.5 34.2 26.8 20.7 17.7 26.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 6 27 28 31 31 27 10 0 0 160 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.0 28.0 28.0 36.0 39.0 43.0 41.0 40.0 38.0 34.0 25.0 22.0 43.0 DAY 22 28 26 30 28 6 15 1 12 6 7 13 DIF. BETWEEN (MAX.-MIN.) (C) 13.2 14.8 14.2 14.7 17.1 17.3 17.7 18.7 19.9 21.0 18.8 17.3 17.1 MEAN DAILY TEMP. (MDT) (C) 6.9 8.4 15.8 16.9 24.5 27.0 28.9 26.1 24.2 16.3 11.3 9.0 17.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 10.0 114.5 181.5 243.5 158.5 108.5 3.5 0.0 0.0 820.0 HEATING DEG. DAYS(BASE 18 0C) 343.0 268.5 82.0 71.0 1.0 0.0 0.0 0.0 1.5 69.5 202.0 277.5 1316.0 DEWPOINT (MEAN C) -2.4 -3.1 -1.7 3.0 5.9 1.6 0.1 0.5 -0.0 -4.3 -2.9 -2.5 -0.5 MIXING RATIO (G/KG) 4.01 3.66 4.16 5.68 7.05 5.22 4.66 4.77 4.65 3.37 4.00 3.86 4.59 VAPOUR PRESSURE (HPA) 5.54 5.05 5.73 7.80 9.63 7.14 6.34 6.51 6.36 4.67 5.52 5.33 6.30 SATURATION DEF. (HPA) 6.18 8.30 13.70 14.67 23.41 31.86 37.24 30.81 26.42 15.70 8.77 6.68 18.65 RELATIVE HUMIDITY (MEAN %) 52 46 33 41 34 21 16 20 22 27 43 49 34 RELATIVE HUMIDITY (MAX. %) 78 72 54 64 53 35 28 31 35 41 62 65 52 RELATIVE HUMIDITY (MIN. %) 35 29 18 27 19 11 9 11 11 14 24 29 20 RELATIVE HUMIDITY (MEAN% 03UTC) 75 71 44 59 46 31 23 29 33 37 57 61 47 RELATIVE HUMIDITY (MEAN% 09UTC) 39 34 21 29 22 12 10 13 14 15 27 32 22 RELATIVE HUMIDITY (MEAN% 15UTC) 51 45 31 36 26 16 11 14 17 24 42 46 30 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 51.0 29.0 2.0 18.0 3.8 0.0 0.0 0.0 0.0 0.0 13.4 9.0 126.2 DAYS WITH PRECIPITATION >=10 2 2 0 0 0 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 3 3 0 0 0 0 0 0 0 0 1 1 8 DAYS WITH PRECIPITATION >= 1 5 3 2 9 1 0 0 0 0 0 4 2 26 DAYS WITH PRECIPITATION 5 3 3 10 3 0 0 0 0 0 6 2 32 GREATEST DAILY PRECIPITATION 28.0 14.0 1.0 4.0 3.0 0.0 0.0 0.0 0.0 0.0 6.0 6.0 28.0 DAY 17 3 22 9 3 ** ** ** ** ** 13 28 DAY WITH THUNDER STORM 0 0 2 0 0 0 0 0 0 0 0 0 2 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 6 7 15 2 10 20 16 17 6 2 6 6 113 WIND DIRECTION (PREVAILING) 360 315 180 360 360 360 360 360 360 360 360 180 360 PREVAILING WIND SPEED(KNOTS) 7.2 10.3 19.6 9.3 9.4 13.4 11.2 12.0 8.7 8.9 8.5 16.3 10.3 PREVAILING WIND PERCENT 14.8 18.5 34.1 27.5 37.5 54.2 46.8 48.8 38.3 39.5 22.9 24.2 33.0 CALMS PERCENT OF WIND 26.5 31.1 12.6 22.5 26.2 24.6 39.1 41.1 45.4 52.8 51.7 51.6 36.3 NO. OF WIND OBSERVATION 155 151 223 200 248 240 248 248 240 248 240 248 2689 VECTOR WIND DIRECTION (MEAN) 156 268 202 279 349 359 356 358 1 1 189 192 339 VECTOR WIND MAGNITUDE(KNOTS) 2.3 1.3 6.9 1.2 2.1 6.8 5.8 6.5 3.3 3.1 0.9 3.0 1.4 WIND STEADINESES (MEAN %) 25.8 14.8 51.1 14.6 29.2 72.3 87.9 92.9 71.7 75.6 16.7 50.8 18.7 WIND SPEED (MEAN KNOTS) 8.9 8.8 13.5 8.2 7.2 9.4 6.6 7.0 4.6 4.1 5.4 5.9 7.5 FASTEST WIND DIRECTION 230 190 180 280 180 360 360 360 360 360 190 200 180 FASTEST WIND SPEED (KNOTS) 30 30 40 30 40 34 30 25 20 20 30 35 40 DAY 22 14 9 2 30 11 10 9 3 7 24 14 DAYS WITH SKY CLEAR (0-2)/8 7 12 8 12 16 29 23 28 30 31 18 23 237 DAYS WITH P.CLOUDY (3-6)/8 17 12 13 12 15 1 8 3 0 0 11 6 98 DAYS WITH CLOUDY (7-8)/8 7 4 10 6 0 0 0 0 0 0 1 2 30 DAYS WITH VISIBILITY =< 2 KM 3 2 8 3 5 10 11 10 2 0 1 3 58 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 865.9 863.7 862.7 862.2 860.1 857.7 854.0 856.4 858.8 865.6 866.4 865.1 861.6 MAX. QFE PRESSURE IN HPA 873.0 870.6 871.6 867.5 865.2 864.0 859.5 860.8 864.4 872.3 873.0 874.2 874.2 DAY-HOUR 10- 6 23- 6 4- 6 21- 6 14- 6 10- 6 24- 6 10- 3 30- 6 31-18 1- 6 3- 6 MIN. QFE PRESSURE IN HPA 858.4 857.0 856.7 853.7 851.7 850.0 850.0 852.2 854.3 859.0 859.6 857.8 850.0 DAY-HOUR 30-12 3- 3 17-12 9-12 30-12 7-12 15-12 20-12 11-12 1-12 24-12 22-21 MEAN QNH PRESSURE IN HPA 1020.7 1018.2 1017.0 1016.5 1014.0 1011.3 1007.1 1009.9 1012.6 1020.4 1021.2 1019.8 1015.7 MAX. QNH PRESSURE IN HPA 1028.8 1026.1 1027.2 1022.5 1019.9 1018.5 1013.4 1014.9 1019.0 1028.0 1028.8 1030.2 1030.2 DAY-HOUR 10- 6 23- 6 4- 6 21- 6 14- 6 10- 6 24- 6 10- 3 30- 6 31-18 1- 6 3- 6 MIN. QNH PRESSURE IN HPA 1012.1 1010.5 1010.2 1006.8 1004.5 1002.5 1002.5 1005.0 1007.4 1012.8 1013.5 1011.4 1002.5 DAY-HOUR 30-12 3- 3 17-12 9-12 30-12 7-12 15-12 20-12 11-12 1-12 24-12 22-21 MEAN QFF PRESSURE IN HPA ****** ****** 1011.7 1009.9 1003.2 999.1 993.9 998.0 1002.1 1014.6 1018.3 1018.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1027.0 1019.1 1010.7 1010.3 999.4 1004.2 1013.4 1027.4 1030.2 1032.2 ****** DAY-HOUR **-** **-** 4-18 4- 3 3-21 9- 3 24- 6 10- 3 30- 3 31-15 1- 3 4- 3 MIN. QFF PRESSURE IN HPA ****** ****** 1002.5 1000.6 990.7 987.8 988.8 991.1 995.5 1003.7 1006.7 1006.3 ****** DAY-HOUR **-** **-** 17-12 30-21 29-12 7- 0 15-12 1-12 11- 9 6-18 24-12 22-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 862.4 863.2 860.0 857.9 854.3 856.7 858.8 865.4 866.2 864.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** 868.2 866.2 864.2 863.4 857.5 860.0 863.5 868.6 871.3 872.4 ****** DAY ** ** 4 22 15 10 24 10 29 31 1 4 MIN. QFE PRESSURE IN HPA ****** ****** 857.0 860.4 852.2 850.4 852.5 853.6 856.2 860.3 862.1 858.1 ****** DAY ** ** 18 16 30 7 1 21 12 3 25 23 MEAN QNH PRESSURE IN HPA ****** ****** 1016.7 1017.7 1014.0 1011.6 1007.4 1010.1 1012.6 1020.2 1021.1 1019.5 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1023.3 1021.0 1018.8 1017.8 1011.1 1014.0 1018.0 1023.8 1026.9 1028.1 ****** DAY ** ** 4 22 15 10 24 10 29 31 1 4 MIN. QNH PRESSURE IN HPA ****** ****** 1010.5 1014.4 1005.0 1003.0 1005.4 1006.6 1009.6 1014.3 1016.4 1011.8 ****** DAY ** ** 18 16 30 7 1 21 12 3 25 23 MEAN QFF PRESSURE IN HPA ****** ****** 1010.8 1010.3 1003.5 999.7 994.4 998.4 1002.0 1014.3 1017.9 1017.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1022.8 1016.0 1010.5 1009.9 997.7 1003.2 1010.9 1022.4 1025.8 1028.2 ****** DAY ** ** 5 20 4 10 20 10 29 31 1 4 MIN. QFF PRESSURE IN HPA ****** ****** 1003.0 1004.2 991.0 987.8 991.2 993.7 996.3 1005.9 1009.4 1007.1 ****** DAY ** ** 18 30 30 7 16 1 20 7 24 23 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 866.3 864.0 862.8 862.7 860.9 858.7 854.9 857.4 859.5 866.2 867.1 865.6 862.2 MAX. QFE PRESSURE IN HPA 872.8 869.9 868.9 867.1 864.2 863.9 858.5 860.8 863.7 870.1 872.3 873.3 873.3 DAY 11 13 4 21 14 10 24 10 30 31 1 4 MIN. QFE PRESSURE IN HPA 860.0 857.0 858.2 855.8 853.4 850.5 853.0 854.6 857.0 861.2 862.7 858.5 850.5 DAY 30 3 22 9 30 7 14 21 11 2 24 23 MEAN QNH PRESSURE IN HPA 1021.1 1018.5 1017.2 1017.1 1015.0 1012.5 1008.1 1011.0 1013.3 1021.1 1022.0 1020.4 1016.4 MAX. QNH PRESSURE IN HPA 1028.6 1025.3 1024.1 1022.1 1018.8 1018.4 1012.2 1014.9 1018.2 1025.5 1028.0 1029.2 1029.2 DAY 11 13 4 21 14 10 24 10 30 31 1 4 MIN. QNH PRESSURE IN HPA 1014.0 1010.5 1011.9 1009.2 1006.4 1003.1 1006.0 1007.8 1010.5 1015.3 1017.0 1012.2 1003.1 DAY 30 3 22 9 30 7 14 21 11 2 24 23 MEAN QFF PRESSURE IN HPA 1022.0 1018.7 1012.7 1011.2 1004.6 1000.7 995.5 1000.1 1004.4 1017.1 1021.2 1020.7 1010.7 MAX. QFF PRESSURE IN HPA 1035.8 1027.7 1025.6 1019.1 1009.9 1010.3 999.0 1004.2 1013.4 1026.5 1030.2 1032.2 1035.8 DAY 11 23 5 4 3 9 24 10 30 31 1 4 MIN. QFF PRESSURE IN HPA 1012.3 1007.0 1005.7 1004.5 992.7 988.0 992.8 995.5 999.1 1008.6 1011.8 1009.1 988.0 DAY 23 16 31 2 30 7 15 1 20 6 24 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 867.4 865.3 863.9 863.3 861.2 858.7 854.9 857.5 859.9 866.9 867.9 866.9 862.8 MAX. QFE PRESSURE IN HPA 873.0 870.6 871.6 867.5 865.2 864.0 859.5 860.3 864.4 871.6 873.0 874.2 874.2 DAY 10 23 4 21 14 10 24 10 30 31 1 3 MIN. QFE PRESSURE IN HPA 861.3 859.5 859.3 855.8 852.9 850.5 852.2 854.7 857.1 861.6 863.6 860.6 850.5 DAY 31 3 22 9 30 7 30 1 11 2 24 23 MEAN QNH PRESSURE IN HPA 1022.4 1020.0 1018.5 1017.7 1015.4 1012.5 1008.2 1011.0 1013.9 1021.8 1023.0 1021.8 1017.2 MAX. QNH PRESSURE IN HPA 1028.8 1026.1 1027.2 1022.5 1019.9 1018.5 1013.4 1014.3 1019.0 1027.2 1028.8 1030.2 1030.2 DAY 10 23 4 21 14 10 24 10 30 31 1 3 MIN. QNH PRESSURE IN HPA 1015.4 1013.4 1013.2 1009.2 1005.8 1003.1 1005.0 1007.9 1010.6 1015.8 1018.1 1014.6 1003.1 DAY 31 3 22 9 30 7 30 1 11 2 24 23 MEAN QFF PRESSURE IN HPA ****** ****** 1013.0 1011.0 1004.2 1000.1 994.5 998.5 1002.6 1015.2 1019.6 1020.0 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1024.6 1016.9 1010.0 1010.1 999.4 1003.8 1010.8 1025.2 1026.8 1030.5 ****** DAY ** ** 4 21 4 9 24 10 30 31 1 3 MIN. QFF PRESSURE IN HPA ****** ****** 1006.9 1004.9 991.1 988.7 990.6 992.6 998.2 1006.6 1011.7 1010.3 ****** DAY ** ** 14 16 30 7 30 1 1 6 24 23 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 865.5 863.3 862.3 861.9 860.0 857.7 854.0 856.2 858.3 865.0 865.7 864.4 861.2 MAX. QFE PRESSURE IN HPA 870.5 868.4 869.6 866.2 864.5 863.0 858.8 859.4 862.9 869.9 870.9 871.5 871.5 DAY 11 23 4 21 14 9 24 26 29 31 1 4 MIN. QFE PRESSURE IN HPA 860.1 858.4 858.5 854.1 852.5 850.5 851.6 853.1 854.9 859.9 861.8 859.2 850.5 DAY 27 17 22 2 30 7 14 1 11 2 12 22 MEAN QNH PRESSURE IN HPA 1020.2 1017.8 1016.6 1016.1 1014.0 1011.3 1007.1 1009.6 1012.0 1019.7 1020.5 1019.0 1015.3 MAX. QNH PRESSURE IN HPA 1026.0 1023.6 1024.9 1021.0 1019.1 1017.4 1012.6 1013.3 1017.3 1025.3 1026.4 1027.1 1027.1 DAY 11 23 4 21 14 9 24 26 29 31 1 4 MIN. QNH PRESSURE IN HPA 1014.1 1012.1 1012.2 1007.2 1005.4 1003.1 1004.4 1006.1 1008.1 1013.8 1016.0 1013.0 1003.1 DAY 27 17 22 2 30 7 14 1 11 2 12 22 MEAN QFF PRESSURE IN HPA ****** ****** 1010.9 1009.6 1002.8 998.9 993.6 997.3 1000.7 1012.9 1016.4 1016.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1022.2 1016.0 1010.6 1009.7 998.4 1002.0 1009.4 1023.4 1023.7 1026.6 ****** DAY ** ** 4 18 3 9 24 26 29 31 1 4 MIN. QFF PRESSURE IN HPA ****** ****** 1004.3 1003.0 991.0 988.2 990.1 991.2 995.5 1004.5 1009.0 1008.2 ****** DAY ** ** 14 30 30 7 14 1 11 6 12 23 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 864.8 862.4 861.4 860.6 858.7 856.3 852.7 854.8 857.3 864.1 864.9 863.8 860.2 MAX. QFE PRESSURE IN HPA 870.0 867.1 868.4 864.5 863.2 861.5 856.5 857.2 862.2 868.8 870.7 870.9 870.9 DAY 11 22 4 18 14 10 24 26 29 31 1 4 MIN. QFE PRESSURE IN HPA 858.4 857.4 856.7 853.7 851.7 850.0 850.0 852.2 854.3 859.0 859.6 858.1 850.0 DAY 30 17 17 9 30 7 15 20 11 1 24 22 MEAN QNH PRESSURE IN HPA 1019.5 1016.7 1015.6 1014.7 1012.5 1009.7 1005.7 1008.0 1010.8 1018.7 1019.6 1018.3 1014.1 MAX. QNH PRESSURE IN HPA 1025.4 1022.1 1023.6 1019.1 1017.6 1015.7 1010.0 1010.8 1016.5 1024.0 1026.2 1026.4 1026.4 DAY 11 22 4 18 14 10 24 26 29 31 1 4 MIN. QNH PRESSURE IN HPA 1012.1 1011.0 1010.2 1006.8 1004.5 1002.5 1002.5 1005.0 1007.4 1012.8 1013.5 1011.8 1002.5 DAY 30 17 17 9 30 7 15 20 11 1 24 22 MEAN QFF PRESSURE IN HPA ****** ****** 1010.2 1008.6 1001.9 997.8 992.7 996.2 1000.3 1012.8 1016.3 1016.2 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1021.7 1015.5 1010.4 1007.1 996.7 1000.3 1009.2 1022.3 1024.6 1026.3 ****** DAY ** ** 4 18 3 10 24 28 29 31 1 4 MIN. QFF PRESSURE IN HPA ****** ****** 1002.5 1002.5 990.7 988.3 988.8 991.1 995.6 1004.3 1006.7 1007.3 ****** DAY ** ** 17 30 29 7 15 1 21 6 24 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 865.6 863.2 862.3 861.0 859.1 856.5 852.8 855.2 858.1 865.2 865.8 864.8 860.8 MAX. QFE PRESSURE IN HPA 871.0 868.1 869.0 864.9 863.2 862.3 856.0 857.8 862.3 870.7 871.0 871.8 871.8 DAY 10 23 4 21 14 10 24 28 29 31 1 4 MIN. QFE PRESSURE IN HPA 860.0 857.4 857.1 853.7 852.4 850.4 850.8 852.4 855.2 859.6 860.6 858.8 850.4 DAY 30 17 17 9 30 7 1 20 11 1 24 22 MEAN QNH PRESSURE IN HPA 1020.4 1017.7 1016.6 1015.1 1013.0 1010.0 1005.7 1008.5 1011.8 1019.9 1020.6 1019.5 1014.9 MAX. QNH PRESSURE IN HPA 1026.5 1023.2 1024.2 1019.6 1017.6 1016.6 1009.4 1011.4 1016.6 1026.2 1026.5 1027.4 1027.4 DAY 10 23 4 21 14 10 24 28 29 31 1 4 MIN. QNH PRESSURE IN HPA 1014.0 1011.0 1010.6 1006.8 1005.3 1003.0 1003.4 1005.3 1008.5 1013.5 1014.6 1012.6 1003.0 DAY 30 17 17 9 30 7 1 20 11 1 24 22 MEAN QFF PRESSURE IN HPA 1021.3 1017.6 1011.9 1009.1 1002.6 998.2 993.0 997.6 1002.9 1016.0 1019.7 1019.7 1009.1 MAX. QFF PRESSURE IN HPA 1033.0 1026.0 1024.0 1016.2 1008.6 1008.0 996.4 1001.9 1011.8 1027.4 1027.8 1030.3 1033.0 DAY 10 23 4 4 2 9 24 28 29 31 1 4 MIN. QFF PRESSURE IN HPA 1014.4 1009.0 1004.2 1000.8 991.6 988.6 989.9 992.9 998.1 1005.9 1008.9 1009.5 988.6 DAY 29 17 17 9 29 7 15 1 21 6 24 22 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 863.5 863.5 860.3 857.7 854.3 856.9 859.5 866.2 866.8 865.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** 871.0 866.8 864.6 863.3 858.0 860.2 864.0 872.3 871.3 873.0 ****** DAY ** ** 4 21 14 9 24 9 29 31 1 4 MIN. QFE PRESSURE IN HPA ****** ****** 857.6 859.3 852.9 851.7 852.3 853.8 856.4 860.8 861.2 858.4 ****** DAY ** ** 17 15 28 6 16 20 11 2 24 22 MEAN QNH PRESSURE IN HPA ****** ****** 1017.9 1018.0 1014.3 1011.4 1007.5 1010.4 1013.4 1021.0 1021.7 1020.3 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1026.5 1021.7 1019.2 1017.7 1011.7 1014.2 1018.5 1028.0 1026.9 1028.8 ****** DAY ** ** 4 21 14 9 24 9 29 31 1 4 MIN. QNH PRESSURE IN HPA ****** ****** 1011.2 1013.2 1005.8 1004.5 1005.2 1006.9 1009.8 1014.9 1015.3 1012.1 ****** DAY ** ** 17 15 28 6 16 20 11 2 24 22 MEAN QFF PRESSURE IN HPA ****** ****** 1012.2 1009.7 1003.1 998.8 993.8 998.0 1002.3 1014.5 1018.3 1018.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1027.0 1016.0 1009.0 1009.1 997.2 1002.3 1010.2 1026.2 1024.5 1028.6 ****** DAY ** ** 4 21 2 9 24 9 29 31 1 4 MIN. QFF PRESSURE IN HPA ****** ****** 1003.7 1002.7 991.0 990.5 990.9 994.1 997.6 1003.7 1008.2 1008.0 ****** DAY ** ** 17 30 29 6 15 1 11 6 24 22 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 863.1 863.3 860.2 857.7 854.5 857.0 859.3 865.9 866.5 865.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** 866.9 867.0 864.5 863.4 858.0 860.2 864.0 871.5 871.1 872.4 ****** DAY ** ** 3 21 14 9 24 9 29 31 1 3 MIN. QFE PRESSURE IN HPA ****** ****** 857.0 859.3 852.6 851.4 852.6 854.3 857.0 860.4 861.6 857.8 ****** DAY ** ** 17 30 29 6 16 20 1 2 24 22 MEAN QNH PRESSURE IN HPA ****** ****** 1017.5 1017.7 1014.2 1011.3 1007.6 1010.5 1013.2 1020.7 1021.4 1020.1 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1021.8 1022.0 1019.1 1017.8 1011.7 1014.2 1018.5 1027.1 1026.6 1028.1 ****** DAY ** ** 3 21 14 9 24 9 29 31 1 3 MIN. QNH PRESSURE IN HPA ****** ****** 1010.5 1013.2 1005.5 1004.1 1005.5 1007.4 1010.5 1014.4 1015.8 1011.4 ****** DAY ** ** 17 30 29 6 16 20 1 2 24 22 MEAN QFF PRESSURE IN HPA ****** ****** 1011.3 1009.6 1003.0 998.8 994.0 998.3 1002.0 1014.1 1017.4 1017.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1020.4 1016.4 1010.7 1010.3 997.1 1002.3 1011.3 1025.4 1023.8 1027.7 ****** DAY ** ** 4 21 3 9 19 9 29 31 1 3 MIN. QFF PRESSURE IN HPA ****** ****** 1002.6 1000.6 990.9 989.6 990.7 993.7 997.1 1004.0 1008.7 1006.3 ****** DAY ** ** 17 30 29 6 15 1 19 6 24 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.6 12.8 15.3 19.8 23.8 26.0 28.6 25.6 19.4 16.6 8.2 6.1 17.3 MINIMUN AIR TEMPERATURE (C) -3.7 3.0 6.9 10.8 14.4 15.5 19.1 15.8 9.2 6.5 -1.2 -3.2 7.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 1 7 2 0 0 0 0 11 DAYS WITH MINIMUM TEMP. <=-4 18 2 0 0 0 0 0 0 0 0 12 14 46 DAYS WITH FREEZING MIN.<= 0 27 11 3 0 0 0 0 0 0 1 16 29 87 TEMPERATURE RECORDS LOWEST(C) -10.0 -8.0 -1.0 5.0 10.0 11.0 16.0 11.0 2.0 0.0 -11.0 -9.0 -11.0 DAY 20 1 5 9 4 15 10 29 29 31 29 1 MAXIMUM AIR TEMPERATURE (C) 14.3 21.6 23.7 28.3 31.8 34.8 36.5 34.4 29.3 27.0 19.0 16.2 26.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 15 21 30 31 31 18 9 0 0 155 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 28.0 28.0 33.0 39.0 40.0 39.0 37.0 34.0 32.0 27.0 22.0 40.0 DAY 8 8 27 29 27 6 16 3 3 9 9 10 DIF. BETWEEN (MAX.-MIN.) (C) 18.0 18.6 16.8 17.5 17.4 19.3 17.4 18.6 20.1 20.5 20.2 19.4 18.6 MEAN DAILY TEMP. (MDT) (C) 5.3 12.3 15.3 19.6 23.1 25.1 27.8 25.1 19.2 16.8 8.9 6.5 17.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 16.5 71.0 123.5 211.0 127.5 16.5 2.0 0.0 0.0 568.0 HEATING DEG. DAYS(BASE 18 0C) 393.5 162.5 91.0 16.0 0.0 0.0 0.0 0.0 37.5 60.0 273.0 356.5 1390.0 DEWPOINT (MEAN C) -6.0 -3.3 -3.5 -0.8 0.2 -3.1 -2.3 -0.4 -4.7 -5.6 -9.1 -5.2 -3.6 MIXING RATIO (G/KG) 3.00 3.79 3.65 4.53 4.73 3.74 3.94 4.48 3.30 3.10 2.48 3.24 3.66 VAPOUR PRESSURE (HPA) 4.15 5.23 5.03 6.23 6.49 5.13 5.38 6.14 4.55 4.30 3.44 4.48 5.05 SATURATION DEF. (HPA) 5.84 10.77 13.50 18.12 24.49 30.49 35.24 28.41 20.24 16.51 9.25 5.86 18.23 RELATIVE HUMIDITY (MEAN %) 48 37 32 29 24 17 15 20 22 24 32 48 29 RELATIVE HUMIDITY (MAX. %) 73 60 53 45 37 30 28 33 36 39 49 67 46 RELATIVE HUMIDITY (MIN. %) 25 19 14 15 13 8 7 10 10 12 16 29 15 RELATIVE HUMIDITY (MEAN% 03UTC) 67 52 48 42 33 26 24 32 33 35 46 61 42 RELATIVE HUMIDITY (MEAN% 09UTC) 30 26 18 17 15 9 8 11 12 13 17 32 17 RELATIVE HUMIDITY (MEAN% 15UTC) 40 29 22 23 19 11 10 13 15 20 28 47 23 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 13.0 0.0 22.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 39.0 DAYS WITH PRECIPITATION >=10 1 0 1 0 0 0 0 0 0 0 0 0 2 DAYS WITH PRECIPITATION >= 5 1 0 3 0 0 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 1 2 0 3 1 0 0 0 0 0 0 0 1 7 DAYS WITH PRECIPITATION 2 0 4 3 0 0 0 0 0 0 0 1 10 GREATEST DAILY PRECIPITATION 10.0 0.0 10.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 10.0 DAY 23 ** 25 28 ** ** ** ** ** ** ** 15 DAY WITH THUNDER STORM 0 1 0 1 1 0 0 0 0 0 0 0 3 DAYS WITH SNOW OR SLEET 2 0 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH DUST 6 10 9 16 3 13 16 18 15 8 0 1 115 WIND DIRECTION (PREVAILING) 360 180 180 360 360 360 360 360 360 360 360 180 360 PREVAILING WIND SPEED(KNOTS) 9.0 16.5 14.2 8.2 9.5 12.0 11.5 10.3 9.5 8.1 7.8 9.3 9.6 PREVAILING WIND PERCENT 22.2 29.9 29.4 26.7 54.4 53.3 58.5 44.4 49.2 34.7 32.1 33.1 36.2 CALMS PERCENT OF WIND 46.8 32.6 25.4 23.8 26.2 25.8 19.4 34.7 40.8 40.7 36.7 31.9 32.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 95 185 210 224 353 349 342 342 355 357 353 158 327 VECTOR WIND MAGNITUDE(KNOTS) 0.7 4.5 5.3 3.5 3.8 5.7 8.2 5.4 4.3 1.3 1.2 1.1 1.6 WIND STEADINESES (MEAN %) 12.3 48.9 52.5 38.5 51.4 67.9 83.7 79.4 82.7 26.5 26.7 17.7 21.9 WIND SPEED (MEAN KNOTS) 5.7 9.2 10.1 9.1 7.4 8.4 9.8 6.8 5.2 4.9 4.5 6.2 7.3 FASTEST WIND DIRECTION 180 180 220 190 220 350 360 360 360 270 320 180 220 FASTEST WIND SPEED (KNOTS) 25 30 60 30 40 45 35 35 30 30 18 30 60 DAY 8 8 29 5 11 22 6 26 25 12 19 10 DAYS WITH SKY CLEAR (0-2)/8 25 12 10 10 21 26 27 25 28 29 21 11 245 DAYS WITH P.CLOUDY (3-6)/8 5 14 15 12 9 4 4 6 2 2 9 19 101 DAYS WITH CLOUDY (7-8)/8 1 2 5 8 1 0 0 0 0 0 0 1 18 DAYS WITH VISIBILITY =< 2 KM 1 1 4 0 3 5 4 4 6 2 0 0 30 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 864.9 864.2 862.9 861.6 861.3 858.9 855.9 859.0 862.2 866.7 869.0 866.9 862.8 MAX. QFE PRESSURE IN HPA 872.5 872.7 870.2 867.8 865.8 865.1 861.8 863.3 868.8 873.2 875.4 872.7 875.4 DAY-HOUR 31- 6 11- 6 5-21 19-18 17- 3 2- 6 31- 3 25- 6 29- 6 27- 6 23- 6 1- 6 MIN. QFE PRESSURE IN HPA 858.9 858.1 854.3 853.7 856.8 852.1 852.4 853.4 858.0 860.7 864.8 860.3 852.1 DAY-HOUR 9-12 25-12 29-12 6- 0 25-12 10-15 17-12 2-12 17-12 9-12 15-12 25-12 MEAN QNH PRESSURE IN HPA 1019.6 1018.8 1017.2 1015.8 1015.5 1012.7 1009.3 1012.8 1016.5 1021.6 1024.3 1021.9 1017.2 MAX. QNH PRESSURE IN HPA 1028.2 1028.5 1025.6 1022.9 1020.6 1019.8 1016.0 1017.7 1024.0 1029.0 1031.6 1028.5 1031.6 DAY-HOUR 31- 6 11- 6 5-21 19-18 17- 3 2- 6 31- 3 25- 6 29- 6 27- 6 23- 6 1- 6 MIN. QNH PRESSURE IN HPA 1012.7 1011.8 1007.4 1006.8 1010.3 1004.9 1005.3 1006.4 1011.7 1014.8 1019.4 1014.3 1004.9 DAY-HOUR 9-12 25-12 29-12 6- 0 25-12 10-15 17-12 2-12 17-12 9-12 15-12 25-12 MEAN QFF PRESSURE IN HPA 1019.8 1014.8 1011.8 1007.8 1005.4 1001.5 996.7 1001.8 1008.8 1015.6 1023.2 1021.9 1010.8 MAX. QFF PRESSURE IN HPA 1031.6 1029.8 1024.7 1016.0 1011.9 1009.1 1005.5 1009.1 1021.1 1024.0 1035.0 1033.7 1035.0 DAY-HOUR 19- 6 1- 3 4- 3 20- 3 17- 3 2- 6 31- 3 29- 3 29- 3 27- 3 23- 3 1- 3 MIN. QFF PRESSURE IN HPA 1007.0 1004.3 1000.4 995.6 998.3 991.6 992.3 994.7 1001.9 1005.7 1013.0 1011.0 991.6 DAY-HOUR 9-12 8- 9 29-12 6- 0 11-12 10-15 17-12 2-12 5- 9 10-12 10-12 12-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 864.4 864.0 862.6 861.4 861.2 859.1 856.3 859.3 862.2 866.7 869.0 866.8 862.7 MAX. QFE PRESSURE IN HPA 869.3 870.9 867.9 865.6 865.0 864.4 860.9 862.4 867.6 871.2 873.8 871.4 873.8 DAY 13 12 4 20 17 2 31 26 29 28 23 2 MIN. QFE PRESSURE IN HPA 860.1 859.9 857.0 853.7 858.1 853.8 854.3 855.3 859.4 862.2 866.2 862.4 853.7 DAY 30 8 29 6 2 11 8 3 22 10 15 15 MEAN QNH PRESSURE IN HPA 1019.0 1018.5 1017.0 1015.6 1015.4 1012.9 1009.7 1013.1 1016.5 1021.6 1024.2 1021.8 1017.1 MAX. QNH PRESSURE IN HPA 1024.6 1026.4 1023.0 1020.4 1019.7 1019.0 1015.0 1016.7 1022.6 1026.8 1029.7 1027.0 1029.7 DAY 13 12 4 20 17 2 31 26 29 28 23 2 MIN. QNH PRESSURE IN HPA 1014.1 1013.8 1010.5 1006.8 1011.8 1006.9 1007.4 1008.6 1013.3 1016.5 1021.0 1016.7 1006.8 DAY 30 8 29 6 2 11 8 3 22 10 15 15 MEAN QFF PRESSURE IN HPA 1018.8 1014.4 1011.3 1007.7 1005.5 1002.1 997.3 1002.1 1008.8 1015.5 1022.7 1021.3 1010.6 MAX. QFF PRESSURE IN HPA 1027.6 1026.8 1022.1 1013.9 1011.1 1008.6 1003.6 1006.7 1018.4 1020.9 1031.1 1029.7 1031.1 DAY 20 1 4 20 15 2 31 31 29 28 23 2 MIN. QFF PRESSURE IN HPA 1009.5 1006.3 1002.8 995.6 999.4 993.1 994.0 996.9 1003.4 1006.7 1013.7 1012.6 993.1 DAY 30 21 29 6 11 11 28 3 18 12 10 10 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 865.2 864.5 863.3 862.3 862.3 859.8 856.8 859.9 862.8 867.4 869.7 867.4 863.4 MAX. QFE PRESSURE IN HPA 870.7 871.2 869.0 866.9 865.8 864.8 861.8 863.0 868.3 872.1 874.9 872.0 874.9 DAY 31 12 4 20 17 2 31 25 29 27 23 2 MIN. QFE PRESSURE IN HPA 860.4 860.0 857.7 854.4 859.1 854.7 854.9 856.0 859.9 862.8 866.7 862.4 854.4 DAY 16 8 29 6 2 10 13 2 22 10 15 15 MEAN QNH PRESSURE IN HPA 1019.9 1019.1 1017.8 1016.6 1016.5 1013.7 1010.3 1013.8 1017.1 1022.4 1025.0 1022.5 1017.9 MAX. QNH PRESSURE IN HPA 1026.2 1026.8 1024.2 1021.8 1020.6 1019.4 1016.0 1017.4 1023.4 1027.8 1031.0 1027.7 1031.0 DAY 31 12 4 20 17 2 31 25 29 27 23 2 MIN. QNH PRESSURE IN HPA 1014.4 1014.0 1011.3 1007.6 1012.9 1007.9 1008.1 1009.4 1013.8 1017.2 1021.6 1016.7 1007.6 DAY 16 8 29 6 2 10 13 2 22 10 15 15 MEAN QFF PRESSURE IN HPA 1021.6 1016.5 1013.5 1009.5 1007.0 1002.9 998.5 1003.8 1010.8 1018.2 1025.9 1024.4 1012.7 MAX. QFF PRESSURE IN HPA 1030.8 1029.8 1024.7 1016.0 1011.9 1008.5 1005.5 1009.1 1021.1 1024.0 1035.0 1033.7 1035.0 DAY 20 1 4 20 17 2 31 29 29 27 23 1 MIN. QFF PRESSURE IN HPA 1012.8 1008.0 1003.9 997.6 1000.8 994.8 995.6 998.5 1005.3 1009.4 1016.4 1016.7 994.8 DAY 9 8 29 6 11 10 27 3 5 10 10 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 866.6 865.5 864.1 862.7 862.5 859.7 856.7 859.9 863.2 867.8 870.3 868.3 864.0 MAX. QFE PRESSURE IN HPA 872.5 872.7 869.6 867.3 865.8 865.1 861.1 863.3 868.8 873.2 875.4 872.7 875.4 DAY 31 11 5 20 17 2 31 25 29 27 23 1 MIN. QFE PRESSURE IN HPA 861.7 860.8 858.3 856.2 859.5 855.1 855.0 855.5 860.4 863.0 867.0 862.6 855.0 DAY 16 8 29 6 26 10 9 2 5 10 1 25 MEAN QNH PRESSURE IN HPA 1021.5 1020.3 1018.7 1017.0 1016.8 1013.7 1010.2 1013.8 1017.6 1022.9 1025.8 1023.5 1018.5 MAX. QNH PRESSURE IN HPA 1028.2 1028.5 1024.9 1022.3 1020.6 1019.8 1015.2 1017.7 1024.0 1029.0 1031.6 1028.5 1031.6 DAY 31 11 5 20 17 2 31 25 29 27 23 1 MIN. QNH PRESSURE IN HPA 1015.9 1014.9 1012.0 1009.6 1013.4 1008.4 1008.2 1008.8 1014.4 1017.4 1022.0 1016.9 1008.2 DAY 16 8 29 6 26 10 9 2 5 10 1 25 MEAN QFF PRESSURE IN HPA 1021.7 1016.2 1012.9 1008.8 1006.5 1002.1 997.2 1002.1 1009.1 1016.1 1024.2 1023.4 1011.7 MAX. QFF PRESSURE IN HPA 1031.6 1028.9 1022.9 1015.4 1011.8 1009.1 1002.7 1006.1 1018.8 1022.7 1032.6 1033.0 1033.0 DAY 19 1 4 20 14 2 31 31 29 27 23 2 MIN. QFF PRESSURE IN HPA 1012.4 1007.5 1002.9 998.6 1000.1 994.4 994.3 996.9 1003.5 1007.6 1015.7 1015.2 994.3 DAY 9 8 29 6 26 10 17 2 5 10 11 25 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 864.3 863.9 862.7 861.5 861.6 859.0 855.9 858.9 862.1 866.4 868.6 866.6 862.6 MAX. QFE PRESSURE IN HPA 870.8 871.4 868.3 866.4 864.9 864.2 859.9 862.3 867.8 872.1 873.6 871.4 873.6 DAY 31 11 5 20 14 2 30 25 29 27 23 1 MIN. QFE PRESSURE IN HPA 859.6 859.5 855.3 855.5 858.1 854.4 853.8 854.8 859.1 861.9 865.4 861.0 853.8 DAY 9 8 29 6 26 10 13 2 5 10 15 25 MEAN QNH PRESSURE IN HPA 1018.9 1018.4 1017.1 1015.7 1015.8 1012.8 1009.3 1012.7 1016.3 1021.2 1023.8 1021.5 1017.0 MAX. QNH PRESSURE IN HPA 1026.3 1027.0 1023.4 1021.3 1019.6 1018.8 1013.8 1016.6 1022.9 1027.8 1029.5 1027.0 1029.5 DAY 31 11 5 20 14 2 30 25 29 27 23 1 MIN. QNH PRESSURE IN HPA 1013.5 1013.4 1008.6 1008.8 1011.8 1007.6 1006.9 1008.0 1012.9 1016.1 1020.1 1015.1 1006.9 DAY 9 8 29 6 26 10 13 2 5 10 15 25 MEAN QFF PRESSURE IN HPA 1018.2 1013.7 1011.0 1007.2 1005.3 1001.3 996.0 1000.9 1007.9 1014.3 1021.5 1020.1 1009.8 MAX. QFF PRESSURE IN HPA 1027.4 1025.0 1020.6 1012.8 1010.8 1008.2 1000.9 1005.3 1017.3 1020.6 1030.4 1029.2 1030.4 DAY 19 11 5 20 14 2 30 27 28 27 23 1 MIN. QFF PRESSURE IN HPA 1007.7 1004.3 1000.4 997.9 999.2 994.9 993.0 996.2 1001.9 1006.5 1013.8 1011.8 993.0 DAY 9 8 29 6 26 10 18 2 5 10 11 25 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 863.5 862.9 861.5 860.4 860.2 857.9 854.8 857.8 861.1 865.4 867.7 865.8 861.6 MAX. QFE PRESSURE IN HPA 869.7 870.4 867.1 864.8 863.8 862.7 859.3 861.2 866.9 870.8 872.6 870.6 872.6 DAY 31 11 5 19 16 2 30 26 29 27 23 1 MIN. QFE PRESSURE IN HPA 858.9 858.1 854.3 854.6 856.8 852.5 852.4 853.4 858.0 860.7 864.8 860.3 852.4 DAY 9 25 29 5 25 10 17 2 17 9 15 25 MEAN QNH PRESSURE IN HPA 1018.0 1017.2 1015.7 1014.4 1014.2 1011.6 1008.0 1011.4 1015.2 1020.2 1022.8 1020.6 1015.8 MAX. QNH PRESSURE IN HPA 1025.0 1025.8 1022.1 1019.4 1018.3 1017.0 1013.2 1015.3 1021.8 1026.3 1028.4 1026.1 1028.4 DAY 31 11 5 19 16 2 30 26 29 27 23 1 MIN. QNH PRESSURE IN HPA 1012.7 1011.8 1007.4 1007.8 1010.3 1005.4 1005.3 1006.4 1011.7 1014.8 1019.4 1014.3 1005.3 DAY 9 25 29 5 25 10 17 2 17 9 15 25 MEAN QFF PRESSURE IN HPA 1017.8 1013.1 1010.1 1006.5 1004.3 1000.8 995.7 1000.5 1007.6 1014.1 1021.3 1020.0 1009.3 MAX. QFF PRESSURE IN HPA 1025.6 1024.8 1019.6 1012.3 1009.2 1007.1 1002.1 1004.7 1017.4 1020.3 1030.7 1028.4 1030.7 DAY 19 11 5 20 16 2 30 31 28 27 23 1 MIN. QFF PRESSURE IN HPA 1007.0 1007.4 1000.4 998.6 998.3 992.6 992.3 994.7 1002.0 1005.7 1013.0 1011.3 992.3 DAY 9 20 29 6 11 10 17 2 5 10 10 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 864.5 863.9 862.1 861.0 860.4 857.8 854.9 858.0 861.6 866.1 868.6 866.6 862.1 MAX. QFE PRESSURE IN HPA 870.5 871.4 867.5 865.5 863.8 862.3 859.3 861.5 867.6 871.6 873.6 871.7 873.6 DAY 31 11 5 20 17 2 30 25 29 27 23 1 MIN. QFE PRESSURE IN HPA 859.9 858.9 855.1 854.5 857.0 852.1 852.7 853.7 858.3 861.3 865.6 860.9 852.1 DAY 9 25 29 5 25 10 17 2 17 9 1 25 MEAN QNH PRESSURE IN HPA 1019.1 1018.4 1016.4 1015.2 1014.4 1011.4 1008.1 1011.7 1015.8 1021.0 1023.8 1021.5 1016.4 MAX. QNH PRESSURE IN HPA 1026.0 1027.0 1022.5 1020.2 1018.3 1016.6 1013.2 1015.7 1022.6 1027.2 1029.5 1027.3 1029.5 DAY 31 11 5 20 17 2 30 25 29 27 23 1 MIN. QNH PRESSURE IN HPA 1013.8 1012.7 1008.4 1007.7 1010.5 1004.9 1005.6 1006.8 1012.0 1015.4 1020.4 1015.0 1004.9 DAY 9 25 29 5 25 10 17 2 17 9 1 25 MEAN QFF PRESSURE IN HPA 1020.9 1015.7 1012.1 1008.0 1004.8 1000.7 996.4 1001.7 1009.6 1016.7 1024.7 1023.3 1011.2 MAX. QFF PRESSURE IN HPA 1028.8 1028.4 1021.0 1014.4 1010.2 1006.5 1002.4 1006.2 1019.8 1023.5 1034.2 1033.0 1034.2 DAY 19 11 5 20 7 2 31 29 28 27 23 1 MIN. QFF PRESSURE IN HPA 1010.2 1009.2 1000.8 999.0 999.0 991.6 993.2 995.9 1004.0 1007.3 1016.1 1014.7 991.6 DAY 9 20 29 5 26 10 17 2 17 10 10 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 865.6 864.6 863.3 861.9 861.3 859.0 856.0 859.3 862.6 867.1 869.4 867.3 863.1 MAX. QFE PRESSURE IN HPA 871.8 872.2 868.9 867.8 864.6 864.2 860.7 862.3 868.0 872.0 873.7 872.3 873.7 DAY 31 11 5 19 16 1 30 25 28 27 22 1 MIN. QFE PRESSURE IN HPA 860.0 860.3 858.4 854.6 858.1 853.8 853.7 854.8 859.4 862.3 866.3 862.3 853.7 DAY 9 25 29 5 25 10 8 2 17 9 11 12 MEAN QNH PRESSURE IN HPA 1020.4 1019.3 1017.7 1016.1 1015.4 1012.8 1009.4 1013.2 1016.9 1022.1 1024.7 1022.3 1017.5 MAX. QNH PRESSURE IN HPA 1027.4 1027.9 1024.1 1022.9 1019.2 1018.8 1014.8 1016.6 1023.1 1027.7 1029.6 1028.0 1029.6 DAY 31 11 5 19 16 1 30 25 28 27 22 1 MIN. QNH PRESSURE IN HPA 1014.0 1014.3 1012.1 1007.8 1011.8 1006.9 1006.8 1008.0 1013.3 1016.6 1021.2 1016.6 1006.8 DAY 9 25 29 5 25 10 8 2 17 9 11 12 MEAN QFF PRESSURE IN HPA 1020.5 1015.0 1011.9 1007.8 1005.0 1001.1 996.4 1001.6 1008.5 1015.4 1023.3 1022.2 1010.7 MAX. QFF PRESSURE IN HPA 1029.8 1027.7 1021.4 1015.1 1010.5 1008.0 1002.4 1005.9 1018.5 1021.8 1032.2 1031.5 1032.2 DAY 19 11 3 19 14 1 30 27 28 27 23 1 MIN. QFF PRESSURE IN HPA 1008.4 1007.7 1004.3 996.7 999.1 993.1 992.9 996.4 1002.3 1007.3 1015.0 1012.4 992.9 DAY 9 20 29 5 11 10 7 2 17 11 3 12 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 865.2 864.4 863.3 861.6 861.3 859.0 856.2 859.4 862.5 867.0 869.2 866.9 863.0 MAX. QFE PRESSURE IN HPA 871.5 872.2 870.2 866.9 864.9 864.3 860.8 862.4 867.8 871.8 873.8 872.0 873.8 DAY 31 11 5 19 14 1 30 25 28 27 22 1 MIN. QFE PRESSURE IN HPA 860.2 860.3 859.0 854.6 858.0 853.6 854.1 855.0 859.4 862.2 866.3 862.0 853.6 DAY 27 25 29 5 1 10 13 2 17 9 11 12 MEAN QNH PRESSURE IN HPA 1019.9 1019.0 1017.7 1015.8 1015.5 1012.8 1009.6 1013.2 1016.8 1021.9 1024.5 1021.9 1017.4 MAX. QNH PRESSURE IN HPA 1027.1 1027.9 1025.6 1021.8 1019.6 1018.9 1014.9 1016.7 1022.9 1027.4 1029.7 1027.7 1029.7 DAY 31 11 5 19 14 1 30 25 28 27 22 1 MIN. QNH PRESSURE IN HPA 1014.2 1014.3 1012.8 1007.8 1011.7 1006.6 1007.2 1008.2 1013.3 1016.5 1021.2 1016.2 1006.6 DAY 27 25 29 5 1 10 13 2 17 9 11 12 MEAN QFF PRESSURE IN HPA 1019.3 1014.1 1011.6 1007.2 1005.0 1001.2 996.3 1001.5 1008.4 1015.1 1022.3 1020.6 1010.2 MAX. QFF PRESSURE IN HPA 1028.2 1026.3 1021.9 1013.8 1010.9 1008.0 1002.0 1006.1 1018.1 1020.6 1030.3 1029.8 1030.3 DAY 31 11 5 19 14 1 30 27 28 27 23 1 MIN. QFF PRESSURE IN HPA 1008.7 1006.5 1005.1 996.3 1000.0 993.4 993.6 996.4 1002.2 1006.6 1014.7 1011.0 993.4 DAY 9 18 28 5 27 10 7 2 17 11 9 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.2 12.4 15.4 20.1 23.5 28.7 28.9 26.8 22.5 19.3 12.3 7.3 18.7 MINIMUN AIR TEMPERATURE (C) -1.9 5.9 8.2 13.4 16.3 19.2 19.6 17.1 12.1 9.7 5.1 0.0 10.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 5 4 12 2 0 0 0 0 23 DAYS WITH MINIMUM TEMP. <=-4 13 0 0 0 0 0 0 0 0 0 1 15 29 DAYS WITH FREEZING MIN.<= 0 24 2 5 0 0 0 0 0 0 0 5 19 55 TEMPERATURE RECORDS LOWEST(C) -7.0 -1.0 -2.0 6.0 9.0 16.0 15.0 13.0 7.0 6.0 -4.0 -7.0 -7.0 DAY 9 8 9 5 15 7 25 10 16 14 20 31 MAXIMUM AIR TEMPERATURE (C) 18.3 20.4 23.7 27.8 30.7 36.9 36.7 35.4 32.4 29.8 21.2 16.3 27.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 11 17 30 31 31 25 20 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) 26.0 27.0 29.0 33.0 38.0 42.0 40.0 39.0 38.0 33.0 29.0 23.0 42.0 DAY 30 26 19 21 30 12 18 16 8 2 1 5 DIF. BETWEEN (MAX.-MIN.) (C) 20.2 14.5 15.5 14.4 14.4 17.7 17.1 18.3 20.3 20.1 16.1 16.3 17.1 MEAN DAILY TEMP. (MDT) (C) 8.2 13.1 15.9 20.6 23.5 28.0 28.2 26.3 22.2 19.8 13.1 8.2 18.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 3.0 32.0 95.0 210.5 223.0 163.0 50.5 4.0 0.0 0.0 781.0 HEATING DEG. DAYS(BASE 18 0C) 304.5 144.0 94.0 15.0 5.5 0.0 0.0 0.0 0.0 4.5 152.0 304.5 1024.0 DEWPOINT (MEAN C) -5.1 -0.0 -4.3 3.8 3.8 -0.2 1.0 -2.0 -4.5 -2.3 -0.2 -5.7 -1.3 MIXING RATIO (G/KG) 3.15 4.57 3.56 6.05 6.19 4.58 4.96 4.01 3.33 3.83 4.52 3.09 4.32 VAPOUR PRESSURE (HPA) 4.36 6.31 4.89 8.30 8.47 6.27 6.77 5.49 4.59 5.30 6.24 4.28 5.94 SATURATION DEF. (HPA) 7.02 9.19 14.02 16.43 22.13 34.87 34.54 31.57 24.75 18.72 9.28 7.16 19.14 RELATIVE HUMIDITY (MEAN %) 46 49 30 40 33 17 19 17 19 26 46 44 32 RELATIVE HUMIDITY (MAX. %) 66 72 50 63 52 30 33 28 31 41 65 64 50 RELATIVE HUMIDITY (MIN. %) 24 28 16 22 19 9 9 9 8 12 27 26 17 RELATIVE HUMIDITY (MEAN% 03UTC) 62 67 41 54 44 27 30 27 29 38 63 61 45 RELATIVE HUMIDITY (MEAN% 09UTC) 28 32 20 27 22 10 11 10 10 14 29 28 20 RELATIVE HUMIDITY (MEAN% 15UTC) 42 41 25 34 27 12 12 10 13 21 40 41 27 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 0.0 26.6 33.4 33.7 19.3 0.0 0.0 0.0 0.0 0.0 4.0 4.2 121.2 DAYS WITH PRECIPITATION >=10 0 1 2 2 1 0 0 0 0 0 0 0 6 DAYS WITH PRECIPITATION >= 5 0 2 2 2 1 0 0 0 0 0 0 0 7 DAYS WITH PRECIPITATION >= 1 0 5 4 5 3 0 0 0 0 0 3 1 21 DAYS WITH PRECIPITATION 0 5 4 8 6 0 0 0 0 0 3 2 28 GREATEST DAILY PRECIPITATION 0.0 12.0 18.4 15.0 11.0 0.0 0.0 0.0 0.0 0.0 2.0 4.0 18.4 DAY ** 4 29 27 13 ** ** ** ** ** 9 28 DAY WITH THUNDER STORM 0 2 2 7 5 0 0 0 0 1 0 0 17 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 2 2 DAYS WITH DUST 0 5 22 18 16 23 22 22 18 5 4 10 165 WIND DIRECTION (PREVAILING) 180 180 180 180 225 360 360 360 360 360 360 360 360 PREVAILING WIND SPEED(KNOTS) 7.6 11.8 13.6 11.4 20.4 15.4 14.1 13.1 12.5 9.9 9.1 9.1 11.6 PREVAILING WIND PERCENT 28.2 42.4 47.2 41.3 23.8 38.3 54.0 46.4 38.8 23.4 22.1 13.7 26.8 CALMS PERCENT OF WIND 43.1 28.6 9.7 15.0 22.6 26.7 23.0 27.8 46.3 57.3 53.3 43.5 33.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 132 181 205 198 211 11 8 11 11 10 347 193 345 VECTOR WIND MAGNITUDE(KNOTS) 1.3 4.3 7.8 4.3 5.0 6.5 8.9 7.6 5.8 2.3 0.7 3.6 0.6 WIND STEADINESES (MEAN %) 28.9 54.4 57.8 44.3 50.0 68.4 88.1 85.4 90.6 59.0 14.3 40.9 7.3 WIND SPEED (MEAN KNOTS) 4.5 7.9 13.5 9.7 10.0 9.5 10.1 8.9 6.4 3.9 4.9 8.8 8.2 FASTEST WIND DIRECTION 170 180 220 220 210 10 10 10 20 340 210 210 210 FASTEST WIND SPEED (KNOTS) 20 35 50 35 45 35 35 35 30 25 28 60 60 DAY 4 13 19 24 6 4 7 5 19 31 12 11 DAYS WITH SKY CLEAR (0-2)/8 21 8 18 5 11 29 31 27 26 22 14 22 234 DAYS WITH P.CLOUDY (3-6)/8 10 15 11 18 16 1 0 4 3 9 13 7 107 DAYS WITH CLOUDY (7-8)/8 0 5 2 7 4 0 0 0 1 0 3 2 24 DAYS WITH VISIBILITY =< 2 KM 0 1 9 3 2 9 7 7 4 0 0 6 48 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** 257.5 280.2 ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 866.8 865.6 861.7 861.6 859.5 858.1 855.6 857.1 862.0 865.9 866.3 866.1 862.2 MAX. QFE PRESSURE IN HPA 870.3 872.8 868.1 868.0 864.5 864.4 859.5 861.0 868.4 869.8 870.5 872.6 872.8 DAY-HOUR 16- 6 5- 6 23- 6 8- 6 16- 6 2- 6 25- 3 28- 6 24- 6 12- 6 3- 6 21- 6 MIN. QFE PRESSURE IN HPA 862.5 859.4 853.5 853.3 852.0 853.4 852.5 852.8 855.9 862.2 860.3 855.6 852.0 DAY-HOUR 31-12 13-21 13-12 15-21 11-12 17-12 8-12 12-12 3-12 27-12 25-12 11-12 MEAN QNH PRESSURE IN HPA 1021.8 1020.4 1015.8 1015.8 1013.4 1011.8 1009.0 1010.6 1016.2 1020.7 1021.2 1020.9 1016.5 MAX. QNH PRESSURE IN HPA 1025.7 1028.6 1023.2 1023.1 1019.1 1019.0 1013.4 1015.1 1023.6 1025.2 1026.0 1028.4 1028.6 DAY-HOUR 16- 6 5- 6 23- 6 8- 6 16- 6 2- 6 25- 3 28- 6 24- 6 12- 6 3- 6 21- 6 MIN. QNH PRESSURE IN HPA 1016.8 1013.3 1006.5 1006.3 1004.8 1006.4 1005.4 1005.7 1009.3 1016.5 1014.3 1008.9 1004.8 DAY-HOUR 31-12 13-21 13-12 15-21 11-12 17-12 8-12 12-12 3-12 27-12 25-12 11-12 MEAN QFF PRESSURE IN HPA 1021.2 1016.6 1010.3 1007.6 1003.3 999.1 996.1 998.9 1006.9 1013.2 1017.4 1020.3 1009.2 MAX. QFF PRESSURE IN HPA 1028.4 1027.5 1020.9 1016.6 1010.7 1006.9 1003.0 1005.7 1015.8 1019.5 1025.8 1032.1 1032.1 DAY-HOUR 9- 3 5- 3 24- 3 6- 3 16- 6 2- 3 25- 3 28- 3 28- 3 19- 3 20- 3 29- 6 MIN. QFF PRESSURE IN HPA 1011.8 1008.9 1001.4 996.6 994.1 993.4 991.8 993.8 997.1 1007.7 1008.0 1003.4 991.8 DAY-HOUR 30-12 13- 0 7-12 15-21 11-12 17-12 8-12 12-12 9- 9 27-21 13- 0 11-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 866.9 865.4 861.5 861.4 859.5 858.1 855.7 857.2 861.9 865.9 866.2 865.9 862.1 MAX. QFE PRESSURE IN HPA 869.5 870.8 866.4 866.3 862.8 862.9 858.4 859.6 867.2 868.2 869.2 870.5 870.8 DAY 28 5 24 8 20 2 25 29 24 19 3 21 MIN. QFE PRESSURE IN HPA 864.4 859.4 857.9 853.5 854.6 854.5 853.8 854.5 857.3 863.3 861.8 860.3 853.5 DAY 5 14 14 16 12 18 22 12 4 28 13 11 MEAN QNH PRESSURE IN HPA 1021.8 1020.1 1015.6 1015.5 1013.4 1011.8 1009.0 1010.7 1016.2 1020.7 1021.0 1020.7 1016.4 MAX. QNH PRESSURE IN HPA 1024.8 1026.3 1021.3 1021.2 1017.2 1017.3 1012.1 1013.5 1022.2 1023.3 1024.5 1026.0 1026.3 DAY 28 5 24 8 20 2 25 29 24 19 3 21 MIN. QNH PRESSURE IN HPA 1019.0 1013.3 1011.6 1006.5 1007.8 1007.7 1006.9 1007.7 1010.9 1017.7 1016.0 1014.3 1006.5 DAY 5 14 14 16 12 18 22 12 4 28 13 11 MEAN QFF PRESSURE IN HPA 1020.8 1016.0 1009.9 1007.3 1003.6 999.4 996.4 999.0 1006.8 1013.0 1017.0 1019.7 1009.1 MAX. QFF PRESSURE IN HPA 1025.2 1025.5 1019.0 1014.6 1010.3 1005.8 1000.8 1002.7 1012.4 1016.8 1022.5 1027.4 1027.4 DAY 9 5 24 6 15 2 25 29 25 19 20 29 MIN. QFF PRESSURE IN HPA 1013.0 1008.9 1003.6 998.1 996.7 994.7 993.2 995.9 999.9 1007.9 1008.0 1007.9 993.2 DAY 30 13 7 16 31 18 7 12 9 28 13 11 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 867.4 866.0 862.2 862.1 860.4 859.1 856.5 857.9 862.7 866.7 867.0 866.7 862.9 MAX. QFE PRESSURE IN HPA 869.5 871.6 867.4 866.8 864.1 864.0 859.5 860.6 868.0 869.1 869.6 871.8 871.8 DAY 28 5 23 8 20 2 25 28 24 19 3 21 MIN. QFE PRESSURE IN HPA 865.2 860.1 858.9 855.1 855.5 855.6 854.5 855.7 857.9 863.9 862.6 860.6 854.5 DAY 5 14 3 16 11 18 21 12 2 28 13 11 MEAN QNH PRESSURE IN HPA 1022.4 1020.8 1016.5 1016.4 1014.4 1012.9 1010.0 1011.6 1017.0 1021.6 1022.0 1021.7 1017.3 MAX. QNH PRESSURE IN HPA 1024.8 1027.2 1022.4 1021.7 1018.6 1018.5 1013.4 1014.6 1023.1 1024.4 1024.9 1027.4 1027.4 DAY 28 5 23 8 20 2 25 28 24 19 3 21 MIN. QNH PRESSURE IN HPA 1019.9 1014.1 1012.7 1008.4 1008.8 1008.9 1007.7 1009.0 1011.6 1018.4 1016.9 1014.6 1007.7 DAY 5 14 3 16 11 18 21 12 2 28 13 11 MEAN QFF PRESSURE IN HPA 1023.7 1018.3 1012.1 1009.0 1004.6 1000.7 997.9 1000.8 1009.1 1015.9 1019.8 1022.6 1011.2 MAX. QFF PRESSURE IN HPA 1028.4 1027.5 1020.9 1016.6 1010.5 1006.9 1003.0 1005.7 1015.8 1019.5 1025.8 1030.6 1030.6 DAY 9 5 24 6 15 2 25 28 28 19 20 21 MIN. QFF PRESSURE IN HPA 1016.7 1012.1 1005.1 999.9 998.0 996.0 994.3 997.9 1001.8 1012.2 1010.7 1010.4 994.3 DAY 30 14 7 16 31 18 8 12 9 1 13 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 868.3 866.9 862.9 862.8 860.6 859.2 856.5 858.1 863.1 867.3 867.9 867.7 863.4 MAX. QFE PRESSURE IN HPA 870.3 872.8 868.1 868.0 864.5 864.4 859.1 861.0 868.4 869.8 870.5 872.6 872.8 DAY 16 5 23 8 16 2 24 28 24 12 3 21 MIN. QFE PRESSURE IN HPA 865.7 861.2 858.8 856.0 855.8 855.6 854.2 855.6 858.2 864.6 863.7 860.5 854.2 DAY 31 14 13 16 11 18 21 12 2 2 13 11 MEAN QNH PRESSURE IN HPA 1023.4 1021.8 1017.3 1017.2 1014.7 1013.0 1009.9 1011.8 1017.5 1022.3 1023.0 1022.8 1017.9 MAX. QNH PRESSURE IN HPA 1025.7 1028.6 1023.2 1023.1 1019.1 1019.0 1012.9 1015.1 1023.6 1025.2 1026.0 1028.4 1028.6 DAY 16 5 23 8 16 2 24 28 24 12 3 21 MIN. QNH PRESSURE IN HPA 1020.5 1015.3 1012.6 1009.4 1009.2 1008.9 1007.3 1008.9 1011.9 1019.2 1018.2 1014.5 1007.3 DAY 31 14 13 16 11 18 21 12 2 2 13 11 MEAN QFF PRESSURE IN HPA 1022.9 1017.9 1011.5 1008.5 1004.4 999.9 996.8 999.5 1007.6 1014.1 1018.7 1021.9 1010.3 MAX. QFF PRESSURE IN HPA 1028.1 1027.4 1018.9 1015.8 1010.7 1006.6 1001.3 1004.3 1013.3 1017.8 1024.3 1032.1 1032.1 DAY 9 5 23 2 16 2 24 28 28 12 20 29 MIN. QFF PRESSURE IN HPA 1015.2 1011.1 1005.3 1000.5 998.0 995.5 993.7 996.6 1000.1 1010.2 1011.1 1009.0 993.7 DAY 30 14 7 16 31 18 19 12 2 2 13 11 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 866.3 865.5 861.7 861.8 859.4 858.1 855.6 856.8 861.6 865.3 865.6 865.5 861.9 MAX. QFE PRESSURE IN HPA 868.4 870.9 866.8 866.7 862.8 863.4 857.8 859.5 867.2 868.4 868.1 870.6 870.9 DAY 21 5 23 8 16 2 14 25 24 12 3 21 MIN. QFE PRESSURE IN HPA 863.6 860.1 856.5 855.7 854.2 854.5 853.6 854.3 856.4 863.1 861.8 857.9 853.6 DAY 31 14 13 16 11 18 21 7 9 27 25 11 MEAN QNH PRESSURE IN HPA 1021.2 1020.2 1015.9 1016.0 1013.3 1011.8 1008.9 1010.3 1015.7 1020.1 1020.4 1020.2 1016.2 MAX. QNH PRESSURE IN HPA 1023.6 1026.4 1021.7 1021.6 1017.2 1017.8 1011.4 1013.4 1022.2 1023.6 1023.2 1026.1 1026.4 DAY 21 5 23 8 16 2 14 25 24 12 3 21 MIN. QNH PRESSURE IN HPA 1018.1 1014.1 1010.0 1009.0 1007.3 1007.7 1006.6 1007.4 1009.8 1017.5 1016.0 1011.6 1006.6 DAY 31 14 13 16 11 18 21 7 9 27 25 11 MEAN QFF PRESSURE IN HPA 1019.4 1015.6 1009.9 1007.3 1002.9 998.6 995.5 998.0 1005.6 1011.4 1015.5 1018.6 1008.2 MAX. QFF PRESSURE IN HPA 1023.5 1024.4 1017.6 1014.2 1008.3 1006.3 999.8 1002.4 1014.0 1016.1 1019.6 1028.1 1028.1 DAY 9 5 23 6 16 2 25 25 24 12 22 29 MIN. QFF PRESSURE IN HPA 1012.3 1009.2 1003.9 1000.1 996.0 993.7 992.7 994.6 997.1 1008.0 1010.9 1005.6 992.7 DAY 30 14 7 15 30 18 27 7 9 28 1 11 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 865.5 864.5 860.3 860.4 858.2 856.9 854.5 855.7 860.5 864.5 864.8 864.7 860.9 MAX. QFE PRESSURE IN HPA 868.3 868.8 865.6 865.6 861.8 861.5 856.6 858.0 866.0 867.2 867.3 869.7 869.7 DAY 27 5 23 8 16 2 15 28 24 12 6 21 MIN. QFE PRESSURE IN HPA 862.5 859.5 853.5 853.9 852.0 853.4 852.5 852.8 855.9 862.2 860.3 855.6 852.0 DAY 31 14 13 15 11 17 8 12 3 27 25 11 MEAN QNH PRESSURE IN HPA 1020.2 1019.1 1014.3 1014.5 1011.9 1010.4 1007.7 1009.1 1014.6 1019.1 1019.5 1019.3 1015.0 MAX. QNH PRESSURE IN HPA 1023.4 1024.0 1020.4 1020.4 1016.0 1015.7 1010.1 1011.7 1020.8 1022.2 1022.3 1025.0 1025.0 DAY 27 5 23 8 16 2 15 28 24 12 6 21 MIN. QNH PRESSURE IN HPA 1016.8 1013.4 1006.5 1007.0 1004.8 1006.4 1005.4 1005.7 1009.3 1016.5 1014.3 1008.9 1004.8 DAY 31 14 13 15 11 17 8 12 3 27 25 11 MEAN QFF PRESSURE IN HPA 1019.0 1015.0 1008.6 1006.3 1002.2 998.1 995.2 997.4 1005.2 1011.4 1015.5 1018.2 1007.7 MAX. QFF PRESSURE IN HPA 1023.5 1023.1 1016.9 1013.2 1007.6 1003.9 998.8 1001.1 1011.7 1015.6 1020.5 1025.8 1025.8 DAY 9 6 10 5 15 2 25 28 24 19 20 29 MIN. QFF PRESSURE IN HPA 1011.8 1008.9 1001.4 998.4 994.1 993.4 991.8 993.8 998.3 1007.9 1010.6 1003.4 991.8 DAY 30 13 7 14 11 17 8 12 8 2 25 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 866.3 865.1 860.8 860.9 858.5 857.1 854.7 856.0 861.2 865.3 865.9 865.7 861.5 MAX. QFE PRESSURE IN HPA 869.2 869.3 865.8 866.1 861.9 861.7 856.7 858.5 866.6 868.3 868.2 870.4 870.4 DAY 27 5 23 8 16 2 24 28 24 19 9 21 MIN. QFE PRESSURE IN HPA 863.2 860.1 853.6 853.5 852.9 853.4 852.8 853.2 856.2 862.8 860.9 856.1 852.8 DAY 31 14 13 15 11 18 27 12 2 27 25 11 MEAN QNH PRESSURE IN HPA 1021.2 1019.7 1014.8 1014.9 1012.3 1010.7 1007.9 1009.4 1015.4 1020.0 1020.7 1020.5 1015.6 MAX. QNH PRESSURE IN HPA 1024.5 1024.6 1020.6 1020.9 1016.1 1015.9 1010.2 1012.2 1021.5 1023.4 1023.3 1025.8 1025.8 DAY 27 5 23 8 16 2 24 28 24 19 9 21 MIN. QNH PRESSURE IN HPA 1017.6 1014.1 1006.6 1006.5 1005.8 1006.4 1005.7 1006.2 1009.6 1017.2 1015.0 1009.5 1005.7 DAY 31 14 13 15 11 18 27 12 2 27 25 11 MEAN QFF PRESSURE IN HPA 1022.3 1017.2 1010.4 1007.6 1002.5 998.6 995.9 998.8 1007.5 1014.2 1018.5 1021.5 1009.6 MAX. QFF PRESSURE IN HPA 1026.7 1024.8 1018.9 1015.7 1008.4 1004.2 999.7 1003.2 1014.1 1018.8 1023.6 1029.6 1029.6 DAY 9 7 10 5 1 2 24 28 24 19 20 29 MIN. QFF PRESSURE IN HPA 1014.5 1010.9 1003.2 998.8 995.3 993.9 993.4 995.1 1000.0 1010.4 1012.0 1005.2 993.4 DAY 31 13 7 15 30 18 19 12 8 2 12 11 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 867.2 865.9 862.0 862.0 859.8 858.2 855.8 857.5 862.6 866.3 866.7 866.5 862.5 MAX. QFE PRESSURE IN HPA 869.4 871.0 867.1 866.5 862.8 862.6 858.1 859.8 867.8 868.8 869.1 871.1 871.1 DAY 27 4 23 7 16 2 24 28 24 18 2 20 MIN. QFE PRESSURE IN HPA 864.4 860.3 856.7 854.5 853.8 854.3 853.8 854.8 857.7 863.7 862.5 857.5 853.8 DAY 31 13 13 15 11 18 8 11 3 27 25 11 MEAN QNH PRESSURE IN HPA 1022.2 1020.7 1016.3 1016.2 1013.7 1011.9 1009.2 1011.1 1016.9 1021.1 1021.7 1021.4 1016.9 MAX. QNH PRESSURE IN HPA 1024.7 1026.5 1022.1 1021.4 1017.2 1016.9 1011.8 1013.7 1022.9 1024.0 1024.4 1026.6 1026.6 DAY 27 4 23 7 16 2 24 28 24 18 2 20 MIN. QNH PRESSURE IN HPA 1019.0 1014.3 1010.2 1007.7 1006.9 1007.4 1006.9 1008.0 1011.3 1018.2 1016.8 1011.1 1006.9 DAY 31 13 13 15 11 18 8 11 3 27 25 11 MEAN QFF PRESSURE IN HPA 1021.6 1016.8 1010.4 1007.5 1003.4 998.9 995.9 998.9 1007.0 1013.0 1017.6 1020.5 1009.3 MAX. QFF PRESSURE IN HPA 1026.1 1024.6 1019.1 1014.1 1009.7 1004.7 999.8 1002.8 1012.7 1017.1 1023.6 1030.3 1030.3 DAY 9 4 23 5 14 1 24 28 24 14 19 29 MIN. QFF PRESSURE IN HPA 1013.5 1010.4 1003.6 998.5 996.9 994.4 992.9 995.1 999.9 1009.5 1009.9 1005.9 992.9 DAY 31 13 13 15 30 18 27 11 8 27 12 11 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 867.0 865.8 861.9 861.7 859.6 858.1 855.9 857.5 862.6 866.2 866.6 866.2 862.4 MAX. QFE PRESSURE IN HPA 869.4 871.0 866.7 866.6 862.7 862.9 858.6 859.8 868.0 868.6 869.2 870.6 871.0 DAY 27 4 23 7 16 1 24 28 24 18 2 20 MIN. QFE PRESSURE IN HPA 864.2 859.4 856.6 853.3 855.2 854.2 854.2 854.7 857.7 863.6 861.7 860.5 853.3 DAY 31 13 13 15 11 18 27 11 3 27 12 11 MEAN QNH PRESSURE IN HPA 1021.9 1020.6 1016.1 1015.9 1013.5 1011.8 1009.3 1011.1 1016.9 1021.0 1021.5 1021.0 1016.7 MAX. QNH PRESSURE IN HPA 1024.7 1026.5 1021.6 1021.5 1017.0 1017.3 1012.4 1013.7 1023.1 1023.8 1024.5 1026.1 1026.5 DAY 27 4 23 7 16 1 24 28 24 18 2 20 MIN. QNH PRESSURE IN HPA 1018.8 1013.3 1010.1 1006.3 1008.5 1007.3 1007.3 1007.9 1011.3 1018.1 1015.9 1014.5 1006.3 DAY 31 13 13 15 11 18 27 11 3 27 12 11 MEAN QFF PRESSURE IN HPA 1020.1 1015.9 1010.0 1007.1 1003.0 998.6 995.8 998.8 1006.8 1012.5 1016.8 1019.4 1008.7 MAX. QFF PRESSURE IN HPA 1024.8 1024.1 1018.4 1013.8 1009.5 1005.5 1000.5 1002.5 1015.5 1017.1 1022.2 1028.0 1028.0 DAY 8 4 23 2 14 1 24 24 24 14 19 29 MIN. QFF PRESSURE IN HPA 1012.6 1009.0 1003.0 996.6 996.1 993.7 992.7 995.0 999.1 1007.7 1008.2 1009.4 992.7 DAY 31 13 13 15 30 18 27 11 8 27 12 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.0 10.0 16.3 20.6 24.8 27.3 29.0 27.6 21.1 13.7 10.4 2.7 17.0 MINIMUN AIR TEMPERATURE (C) -4.0 4.2 9.9 13.7 15.1 17.5 19.7 17.7 11.2 3.6 1.6 -3.7 8.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 1 0 5 9 4 0 0 0 0 19 DAYS WITH MINIMUM TEMP. <=-4 19 2 0 0 0 0 0 0 0 0 1 16 38 DAYS WITH FREEZING MIN.<= 0 28 9 0 0 0 0 0 0 0 7 16 20 80 TEMPERATURE RECORDS LOWEST(C) -12.0 -5.0 5.0 8.0 10.0 13.0 17.0 12.0 6.0 -1.0 -6.0 -14.0 -14.0 DAY 22 1 3 6 4 6 7 28 26 18 30 11 MAXIMUM AIR TEMPERATURE (C) 7.5 16.9 23.9 27.4 33.2 35.6 37.0 36.5 30.6 24.8 20.8 10.9 25.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 9 28 30 31 31 18 6 0 0 154 DAYS WITH MAXIMUM TEMP. <= 0 1 0 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS HIGHEST(C) 17.0 24.0 31.0 33.0 38.0 41.0 40.0 41.0 36.0 34.0 27.0 22.0 41.0 DAY 1 26 21 21 12 29 9 2 1 3 21 25 DIF. BETWEEN (MAX.-MIN.) (C) 11.5 12.7 14.0 13.7 18.1 18.1 17.3 18.8 19.4 21.2 19.2 14.6 16.5 MEAN DAILY TEMP. (MDT) (C) 1.7 10.6 16.9 20.6 24.2 26.5 28.4 27.1 20.9 14.2 11.2 3.6 17.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.5 38.0 99.0 166.0 228.0 189.5 37.5 1.5 0.0 0.0 760.0 HEATING DEG. DAYS(BASE 18 0C) 504.0 216.0 60.5 15.5 0.0 0.0 0.0 0.0 7.0 134.5 204.0 446.0 1587.5 DEWPOINT (MEAN C) -5.5 -1.9 1.0 -1.0 2.6 0.8 3.0 0.5 -1.2 -7.1 -7.5 -7.6 -2.0 MIXING RATIO (G/KG) 3.08 4.25 4.99 4.37 5.47 4.84 5.82 4.89 4.25 2.73 2.64 2.90 4.19 VAPOUR PRESSURE (HPA) 4.26 5.84 6.87 6.00 7.50 6.62 7.92 6.67 5.84 3.78 3.66 4.02 5.75 SATURATION DEF. (HPA) 2.77 7.14 12.73 19.51 25.53 31.64 33.91 32.59 21.30 14.03 10.33 4.17 17.97 RELATIVE HUMIDITY (MEAN %) 65 51 42 28 26 20 21 20 26 26 32 52 34 RELATIVE HUMIDITY (MAX. %) 84 76 66 45 42 34 35 34 42 43 50 76 52 RELATIVE HUMIDITY (MIN. %) 44 29 21 15 14 10 11 9 13 11 14 30 18 RELATIVE HUMIDITY (MEAN% 03UTC) 77 69 59 40 37 29 33 32 39 40 44 65 47 RELATIVE HUMIDITY (MEAN% 09UTC) 53 33 24 18 16 11 14 11 15 12 17 34 22 RELATIVE HUMIDITY (MEAN% 15UTC) 65 43 34 23 19 13 14 12 19 22 28 47 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 56.0 37.0 25.0 3.0 0.0 0.0 2.0 0.0 0.0 0.0 0.0 20.4 143.4 DAYS WITH PRECIPITATION >=10 2 2 1 0 0 0 0 0 0 0 0 1 6 DAYS WITH PRECIPITATION >= 5 2 2 2 0 0 0 0 0 0 0 0 1 7 DAYS WITH PRECIPITATION >= 1 4 4 6 1 0 0 1 0 0 0 0 3 19 DAYS WITH PRECIPITATION 5 5 6 1 1 0 1 0 0 0 0 5 24 GREATEST DAILY PRECIPITATION 41.0 20.0 11.0 3.0 0.0 0.0 2.0 0.0 0.0 0.0 0.0 14.0 41.0 DAY 6 15 30 5 ** ** 31 ** ** ** ** 21 DAY WITH THUNDER STORM 1 0 1 0 2 0 1 0 0 0 0 0 5 DAYS WITH SNOW OR SLEET 2 0 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH DUST 5 8 5 15 0 1 5 1 2 0 6 3 51 WIND DIRECTION (PREVAILING) 360 225 225 225 360 360 360 360 360 360 360 360 360 PREVAILING WIND SPEED(KNOTS) 9.5 25.7 20.7 26.6 10.7 12.7 12.9 11.6 10.8 9.6 9.5 8.6 10.6 PREVAILING WIND PERCENT 24.6 19.8 18.1 36.7 25.8 25.0 32.7 32.3 30.0 25.4 18.8 20.6 23.6 CALMS PERCENT OF WIND 48.8 31.0 33.9 19.2 39.1 46.3 35.5 45.6 50.4 60.9 52.5 57.3 43.4 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 267 209 207 231 5 14 15 15 18 15 245 67 341 VECTOR WIND MAGNITUDE(KNOTS) 1.0 4.1 4.4 9.3 4.1 6.0 7.0 5.3 5.1 3.4 1.9 1.0 1.4 WIND STEADINESES (MEAN %) 14.1 37.3 47.3 62.0 57.7 88.2 84.3 88.3 94.4 91.9 28.8 21.7 18.4 WIND SPEED (MEAN KNOTS) 7.1 11.0 9.3 15.0 7.1 6.8 8.3 6.0 5.4 3.7 6.6 4.6 7.6 FASTEST WIND DIRECTION 220 210 230 220 220 330 30 20 30 20 210 210 220 FASTEST WIND SPEED (KNOTS) 80 45 35 80 30 30 35 25 25 25 42 30 80 DAY 19 4 1 9 7 13 3 6 5 22 27 18 DAYS WITH SKY CLEAR (0-2)/8 19 11 13 13 24 27 27 25 30 31 28 18 266 DAYS WITH P.CLOUDY (3-6)/8 5 13 13 13 7 3 4 6 0 0 1 6 71 DAYS WITH CLOUDY (7-8)/8 7 4 5 3 0 0 0 0 0 0 1 7 27 DAYS WITH VISIBILITY =< 2 KM 6 3 3 7 0 0 6 2 0 0 3 5 35 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** 321.9 314.1 257.1 ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 865.5 863.3 863.2 860.8 861.0 857.0 855.0 855.4 860.7 866.1 867.0 867.7 861.9 MAX. QFE PRESSURE IN HPA 873.3 869.8 868.3 868.3 866.1 863.7 860.1 860.8 868.5 871.2 872.4 873.5 873.5 DAY-HOUR 31- 6 1- 6 12- 6 25- 6 17- 6 3- 6 21- 6 26- 3 29- 6 29- 6 2- 6 3- 6 MIN. QFE PRESSURE IN HPA 851.5 856.8 857.1 851.8 855.3 850.7 850.6 851.1 854.9 859.1 856.3 862.5 850.6 DAY-HOUR 19-18 16- 0 4-12 9-12 19-12 29-12 11-12 2-12 2-12 6-12 27-21 24-12 MEAN QNH PRESSURE IN HPA 1020.2 1017.8 1017.6 1014.9 1015.1 1010.5 1008.2 1008.7 1014.8 1020.9 1021.9 1022.8 1016.1 MAX. QNH PRESSURE IN HPA 1029.2 1025.2 1023.4 1023.4 1020.9 1018.2 1014.1 1014.9 1023.7 1026.8 1028.1 1029.4 1029.4 DAY-HOUR 31- 6 1- 6 12- 6 25- 6 17- 6 3- 6 21- 6 26- 3 29- 6 29- 6 2- 6 3- 6 MIN. QNH PRESSURE IN HPA 1004.2 1010.3 1010.6 1004.6 1008.6 1003.3 1003.2 1003.8 1008.1 1012.9 1009.7 1016.8 1003.2 DAY-HOUR 19-18 16- 0 4-12 9-12 19-12 29-12 11-12 2-12 2-12 6-12 27-21 24-12 MEAN QFF PRESSURE IN HPA 1023.3 1015.4 1011.5 1006.6 1004.3 998.6 995.2 996.5 1006.1 1016.5 1019.5 1024.9 1009.9 MAX. QFF PRESSURE IN HPA 1033.9 1028.3 1018.9 1017.5 1010.9 1007.8 1001.6 1005.2 1017.8 1027.0 1031.9 1036.0 1036.0 DAY-HOUR 31- 6 1- 3 19- 3 25- 3 21- 6 3- 3 21- 3 26- 3 29- 3 30- 3 30-15 4- 3 MIN. QFF PRESSURE IN HPA 1000.2 1006.7 1002.8 994.6 995.5 989.1 988.8 990.0 997.5 1004.3 1004.3 1012.3 988.8 DAY-HOUR 19-18 13-12 29- 0 9-12 19-12 29- 9 11-12 2-12 2-12 6-12 27-21 25-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 864.9 862.9 862.7 860.5 860.9 857.2 855.1 855.5 860.6 865.9 866.8 867.5 861.7 MAX. QFE PRESSURE IN HPA 871.7 868.0 866.7 867.8 864.6 862.4 858.4 859.0 867.0 869.6 871.5 872.0 872.0 DAY 31 1 27 25 17 3 22 26 29 30 2 4 MIN. QFE PRESSURE IN HPA 856.7 856.8 857.1 854.1 856.2 852.0 851.4 852.4 856.8 860.8 856.6 862.6 851.4 DAY 20 16 30 10 13 29 11 13 2 6 28 18 MEAN QNH PRESSURE IN HPA 1019.6 1017.3 1017.0 1014.5 1015.0 1010.8 1008.3 1008.8 1014.7 1020.7 1021.7 1022.5 1015.9 MAX. QNH PRESSURE IN HPA 1027.3 1023.1 1021.6 1022.9 1019.2 1016.7 1012.1 1012.8 1022.0 1024.9 1027.1 1027.7 1027.7 DAY 31 1 27 25 17 3 22 26 29 30 2 4 MIN. QNH PRESSURE IN HPA 1010.2 1010.3 1010.6 1007.2 1009.6 1004.8 1004.1 1005.3 1010.3 1014.9 1010.1 1016.9 1004.1 DAY 20 16 30 10 13 29 11 13 2 6 28 18 MEAN QFF PRESSURE IN HPA 1022.2 1014.6 1010.6 1006.1 1004.3 999.2 995.5 996.7 1006.0 1016.0 1018.8 1024.4 1009.5 MAX. QFF PRESSURE IN HPA 1031.4 1025.1 1016.3 1015.9 1009.2 1006.4 1000.1 1002.0 1015.0 1022.9 1027.9 1032.4 1032.4 DAY 22 1 19 25 22 4 22 26 29 30 30 3 MIN. QFF PRESSURE IN HPA 1008.2 1006.9 1002.8 997.2 997.0 991.2 989.7 992.3 999.0 1006.1 1004.9 1013.1 989.7 DAY 19 16 29 10 13 30 11 3 2 6 28 18 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 865.6 863.6 863.6 861.2 862.0 858.1 855.9 856.3 861.3 866.7 867.6 868.1 862.5 MAX. QFE PRESSURE IN HPA 871.7 868.7 867.4 867.9 865.7 863.5 859.5 860.8 867.9 870.6 872.0 872.6 872.6 DAY 31 1 27 25 17 3 22 26 29 30 2 4 MIN. QFE PRESSURE IN HPA 857.7 857.3 858.2 854.5 857.4 852.8 851.3 853.6 857.6 861.6 857.2 863.0 851.3 DAY 19 16 30 10 13 29 11 12 3 4 28 18 MEAN QNH PRESSURE IN HPA 1020.4 1018.1 1018.1 1015.3 1016.3 1011.8 1009.3 1009.7 1015.5 1021.6 1022.6 1023.2 1016.8 MAX. QNH PRESSURE IN HPA 1027.3 1023.9 1022.4 1023.0 1020.5 1018.0 1013.4 1014.9 1023.0 1026.1 1027.7 1028.4 1028.4 DAY 31 1 27 25 17 3 22 26 29 30 2 4 MIN. QNH PRESSURE IN HPA 1011.3 1010.9 1011.9 1007.7 1011.0 1005.7 1004.0 1006.6 1011.2 1015.8 1010.8 1017.4 1004.0 DAY 19 16 30 10 13 29 11 12 3 4 28 18 MEAN QFF PRESSURE IN HPA 1024.6 1016.9 1013.2 1007.9 1006.3 1000.4 996.9 998.4 1008.1 1019.2 1022.2 1027.1 1011.8 MAX. QFF PRESSURE IN HPA 1033.2 1028.3 1018.9 1017.5 1010.4 1007.8 1001.6 1005.2 1017.8 1027.0 1031.0 1036.0 1036.0 DAY 31 1 19 25 16 3 21 26 29 30 30 4 MIN. QFF PRESSURE IN HPA 1010.0 1008.3 1004.9 998.5 999.6 992.4 990.5 994.1 1000.9 1009.1 1007.0 1014.4 990.5 DAY 19 16 29 9 13 30 11 3 2 6 28 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 867.1 864.8 864.7 862.0 862.3 858.1 855.9 856.4 861.8 867.4 868.4 869.3 863.2 MAX. QFE PRESSURE IN HPA 873.3 869.8 868.3 868.3 866.1 863.7 860.1 860.4 868.5 871.2 872.4 873.5 873.5 DAY 31 1 12 25 17 3 21 26 29 29 2 3 MIN. QFE PRESSURE IN HPA 857.0 859.2 859.6 854.7 858.3 852.4 851.9 853.5 857.4 862.2 858.6 865.0 851.9 DAY 19 16 30 9 13 29 11 12 2 6 28 18 MEAN QNH PRESSURE IN HPA 1022.1 1019.5 1019.3 1016.3 1016.6 1011.8 1009.3 1009.8 1016.0 1022.4 1023.6 1024.6 1017.6 MAX. QNH PRESSURE IN HPA 1029.2 1025.2 1023.4 1023.4 1020.9 1018.2 1014.1 1014.4 1023.7 1026.8 1028.1 1029.4 1029.4 DAY 31 1 12 25 17 3 21 26 29 29 2 3 MIN. QNH PRESSURE IN HPA 1010.5 1013.0 1013.5 1007.9 1012.0 1005.3 1004.7 1006.5 1011.0 1016.5 1012.4 1019.7 1004.7 DAY 19 16 30 9 13 29 11 12 2 6 28 18 MEAN QFF PRESSURE IN HPA 1025.1 1017.1 1013.2 1007.9 1005.5 999.5 995.9 997.1 1006.7 1017.4 1020.6 1026.6 1011.0 MAX. QFF PRESSURE IN HPA 1033.9 1027.7 1018.3 1017.0 1010.9 1007.2 1001.1 1003.0 1016.2 1025.3 1029.7 1035.5 1035.5 DAY 31 1 19 25 21 3 21 26 29 29 30 4 MIN. QFF PRESSURE IN HPA 1007.9 1008.8 1006.0 997.8 999.1 990.2 990.0 992.5 999.7 1006.9 1007.7 1015.4 990.0 DAY 19 13 29 9 19 29 11 2 2 6 28 18 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 865.3 863.1 863.2 860.9 860.9 857.0 854.9 855.1 860.4 865.5 866.5 867.3 861.7 MAX. QFE PRESSURE IN HPA 870.6 868.4 867.1 866.5 864.8 862.2 859.3 858.6 866.6 869.2 870.8 872.3 872.3 DAY 31 28 12 25 17 2 21 26 29 29 1 3 MIN. QFE PRESSURE IN HPA 853.8 859.1 858.5 854.3 856.8 851.4 851.2 852.2 856.4 860.1 857.7 863.2 851.2 DAY 19 13 4 9 12 29 11 12 2 6 27 26 MEAN QNH PRESSURE IN HPA 1020.0 1017.5 1017.7 1015.0 1015.0 1010.5 1008.1 1008.4 1014.4 1020.3 1021.3 1022.3 1015.9 MAX. QNH PRESSURE IN HPA 1026.1 1023.6 1022.1 1021.4 1019.4 1016.5 1013.2 1012.4 1021.5 1024.5 1026.3 1028.0 1028.0 DAY 31 28 12 25 17 2 21 26 29 29 1 3 MIN. QNH PRESSURE IN HPA 1006.9 1012.9 1012.2 1007.4 1010.3 1004.1 1003.9 1005.0 1009.8 1014.1 1011.3 1017.6 1003.9 DAY 19 13 4 9 12 29 11 12 2 6 27 26 MEAN QFF PRESSURE IN HPA 1022.2 1014.2 1010.9 1006.1 1003.7 998.1 994.7 995.7 1005.0 1014.8 1017.6 1023.2 1008.9 MAX. QFF PRESSURE IN HPA 1029.4 1023.5 1015.2 1015.0 1009.3 1005.1 1000.5 1001.1 1013.9 1021.7 1027.4 1032.1 1032.1 DAY 21 1 18 25 21 3 21 31 29 29 30 3 MIN. QFF PRESSURE IN HPA 1003.7 1006.8 1004.2 997.6 996.3 989.1 989.4 990.3 998.1 1004.4 1005.4 1012.6 989.1 DAY 19 13 29 9 19 29 11 2 2 6 27 26 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 864.3 861.9 861.8 859.6 859.5 855.8 853.8 854.0 859.4 864.7 865.6 866.5 860.6 MAX. QFE PRESSURE IN HPA 869.0 866.3 865.8 863.9 862.8 861.3 858.1 857.5 865.4 868.5 869.7 870.9 870.9 DAY 30 17 26 25 10 3 21 26 29 29 1 3 MIN. QFE PRESSURE IN HPA 852.7 858.1 857.1 851.8 855.3 850.7 850.6 851.1 854.9 859.1 856.9 862.5 850.6 DAY 19 13 4 9 19 29 11 2 2 6 27 24 MEAN QNH PRESSURE IN HPA 1018.9 1016.1 1016.0 1013.5 1013.4 1009.2 1006.9 1007.1 1013.3 1019.3 1020.4 1021.4 1014.6 MAX. QNH PRESSURE IN HPA 1024.2 1021.2 1020.6 1018.4 1017.2 1015.4 1011.8 1011.1 1020.1 1023.7 1025.0 1026.4 1026.4 DAY 30 17 26 25 10 3 21 26 29 29 1 3 MIN. QNH PRESSURE IN HPA 1005.6 1011.8 1010.6 1004.6 1008.6 1003.3 1003.2 1003.8 1008.1 1012.9 1010.4 1016.8 1003.2 DAY 19 13 4 9 19 29 11 2 2 6 27 24 MEAN QFF PRESSURE IN HPA 1021.4 1013.4 1009.6 1005.0 1002.8 997.6 994.1 995.0 1004.6 1014.7 1017.5 1023.2 1008.2 MAX. QFF PRESSURE IN HPA 1029.1 1022.2 1014.7 1012.7 1007.5 1004.6 999.3 1000.2 1013.3 1021.5 1027.3 1031.2 1031.2 DAY 21 1 18 17 10 3 21 26 29 29 30 2 MIN. QFF PRESSURE IN HPA 1001.3 1006.7 1002.9 994.6 995.5 990.1 988.8 990.0 997.5 1004.3 1005.1 1012.3 988.8 DAY 19 13 29 9 19 29 11 2 2 6 27 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 865.1 862.9 862.7 860.2 859.9 856.1 854.0 854.5 860.1 865.6 866.6 867.3 861.3 MAX. QFE PRESSURE IN HPA 870.5 867.2 866.6 864.8 863.3 861.6 858.3 858.0 866.0 869.7 870.7 871.7 871.7 DAY 30 1 26 17 10 3 21 31 29 29 30 3 MIN. QFE PRESSURE IN HPA 852.8 859.0 858.6 852.6 855.7 851.1 851.1 851.5 855.8 860.0 857.5 863.1 851.1 DAY 19 13 4 9 12 29 10 2 2 6 27 31 MEAN QNH PRESSURE IN HPA 1019.8 1017.3 1017.1 1014.2 1013.9 1009.5 1007.1 1007.7 1014.1 1020.4 1021.5 1022.3 1015.4 MAX. QNH PRESSURE IN HPA 1026.0 1022.2 1021.5 1019.4 1017.7 1015.8 1012.0 1011.7 1020.8 1025.0 1026.2 1027.3 1027.3 DAY 30 1 26 17 10 3 21 31 29 29 30 3 MIN. QNH PRESSURE IN HPA 1005.7 1012.8 1012.4 1005.5 1009.0 1003.8 1003.8 1004.2 1009.2 1014.0 1011.1 1017.5 1003.8 DAY 19 13 4 9 12 29 10 2 2 6 27 31 MEAN QFF PRESSURE IN HPA 1024.0 1016.1 1012.1 1006.7 1003.9 998.1 994.8 996.4 1006.7 1018.0 1021.0 1026.2 1010.3 MAX. QFF PRESSURE IN HPA 1031.7 1025.6 1017.0 1015.1 1008.3 1005.7 1000.3 1002.2 1015.7 1025.7 1031.9 1034.9 1034.9 DAY 21 1 18 17 21 3 21 31 29 29 30 3 MIN. QFF PRESSURE IN HPA 1004.0 1008.5 1006.8 996.0 997.8 990.6 990.0 991.4 999.7 1007.1 1007.4 1015.2 990.0 DAY 19 13 29 9 19 29 10 3 2 6 27 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 866.1 864.0 863.6 861.2 861.2 856.9 855.1 855.8 861.2 866.7 867.4 868.1 862.3 MAX. QFE PRESSURE IN HPA 872.3 868.5 867.8 867.0 864.9 862.9 859.0 859.4 867.2 870.9 872.1 872.5 872.5 DAY 30 28 26 24 16 2 21 25 28 29 1 3 MIN. QFE PRESSURE IN HPA 851.5 859.4 857.9 854.9 856.5 851.5 851.5 853.3 857.3 860.6 857.1 863.8 851.5 DAY 19 15 29 9 12 29 10 2 2 6 27 30 MEAN QNH PRESSURE IN HPA 1020.9 1018.5 1018.1 1015.4 1015.3 1010.5 1008.4 1009.2 1015.4 1021.6 1022.5 1023.2 1016.6 MAX. QNH PRESSURE IN HPA 1028.0 1023.7 1022.9 1022.0 1019.6 1017.3 1012.8 1013.3 1022.2 1026.4 1027.8 1028.2 1028.2 DAY 30 28 26 24 16 2 21 25 28 29 1 3 MIN. QNH PRESSURE IN HPA 1004.2 1013.3 1011.6 1008.1 1010.0 1004.2 1004.2 1006.3 1010.9 1014.6 1010.6 1018.3 1004.2 DAY 19 15 29 9 12 29 10 2 2 6 27 30 MEAN QFF PRESSURE IN HPA 1023.9 1016.0 1011.9 1006.8 1004.1 998.0 995.0 996.5 1006.1 1016.7 1019.6 1025.3 1010.0 MAX. QFF PRESSURE IN HPA 1032.4 1025.0 1018.1 1014.4 1009.9 1005.8 999.6 1001.9 1015.2 1024.8 1030.1 1033.6 1033.6 DAY 21 1 18 25 21 2 21 25 28 29 30 3 MIN. QFF PRESSURE IN HPA 1000.2 1009.2 1004.7 997.5 997.1 989.3 989.0 991.2 999.3 1005.5 1005.5 1015.7 989.0 DAY 19 13 29 14 12 29 10 2 2 6 26 25 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 865.7 863.7 863.4 861.1 861.1 856.9 855.2 855.8 861.1 866.3 867.1 867.7 862.1 MAX. QFE PRESSURE IN HPA 872.8 867.8 867.6 867.6 864.1 862.2 858.5 859.5 867.0 870.2 872.1 872.5 872.8 DAY 30 1 26 24 16 2 27 25 28 29 1 3 MIN. QFE PRESSURE IN HPA 851.6 859.1 857.7 854.7 856.3 851.5 851.5 853.4 857.3 861.0 856.3 863.1 851.5 DAY 19 15 29 9 12 28 11 2 2 6 27 30 MEAN QNH PRESSURE IN HPA 1020.4 1018.2 1017.9 1015.2 1015.2 1010.4 1008.5 1009.2 1015.2 1021.2 1022.0 1022.8 1016.3 MAX. QNH PRESSURE IN HPA 1028.6 1022.9 1022.6 1022.6 1018.6 1016.5 1012.2 1013.4 1022.0 1025.6 1027.8 1028.2 1028.6 DAY 30 1 26 24 16 2 27 25 28 29 1 3 MIN. QNH PRESSURE IN HPA 1004.4 1012.9 1011.3 1007.9 1009.7 1004.2 1004.2 1006.4 1010.9 1015.1 1009.7 1017.5 1004.2 DAY 19 15 29 9 12 28 11 2 2 6 27 30 MEAN QFF PRESSURE IN HPA 1022.8 1014.8 1011.0 1006.1 1003.9 997.8 995.0 996.5 1005.8 1015.8 1018.4 1023.7 1009.3 MAX. QFF PRESSURE IN HPA 1032.0 1023.0 1017.5 1014.4 1009.0 1005.3 999.5 1002.0 1014.3 1022.8 1030.1 1031.8 1032.0 DAY 21 1 18 24 21 3 17 25 28 29 30 3 MIN. QFF PRESSURE IN HPA 1001.0 1008.9 1003.9 997.1 997.0 989.4 989.3 991.3 998.4 1005.6 1004.3 1013.0 989.3 DAY 19 13 29 14 12 28 10 2 1 6 27 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.1 9.7 13.8 17.5 23.6 27.0 29.0 25.6 21.9 21.1 13.2 6.3 18.1 MINIMUN AIR TEMPERATURE (C) 3.5 3.0 5.9 11.1 14.7 17.3 20.4 15.7 11.7 12.0 4.8 -2.5 9.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 0 16 0 0 0 0 0 17 DAYS WITH MINIMUM TEMP. <=-4 3 4 2 0 0 0 0 0 0 0 0 11 20 DAYS WITH FREEZING MIN.<= 0 7 11 4 0 0 0 0 0 0 0 7 27 56 TEMPERATURE RECORDS LOWEST(C) -7.0 -4.0 -4.0 2.0 8.0 15.0 15.0 11.0 8.0 7.0 -2.0 -10.0 -10.0 DAY 1 18 18 1 6 4 27 25 14 30 14 24 MAXIMUM AIR TEMPERATURE (C) 14.5 18.3 22.3 24.5 31.4 35.3 36.7 34.4 31.7 30.8 22.9 16.9 26.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 25 30 31 31 27 23 3 0 172 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 24.0 26.0 29.0 30.0 37.0 40.0 40.0 38.0 35.0 34.0 30.0 22.0 40.0 DAY 30 15 13 29 19 19 5 20 17 10 1 18 DIF. BETWEEN (MAX.-MIN.) (C) 11.0 15.3 16.4 13.4 16.7 18.0 16.3 18.7 20.0 18.8 18.1 19.4 16.8 MEAN DAILY TEMP. (MDT) (C) 9.0 10.6 14.1 17.8 23.0 26.3 28.5 25.1 21.7 21.4 13.8 7.2 18.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 1.5 3.5 79.5 159.0 234.0 126.5 30.0 30.5 0.5 0.0 665.0 HEATING DEG. DAYS(BASE 18 0C) 279.0 208.0 135.0 38.5 2.0 0.0 0.0 0.0 0.0 0.5 132.0 335.0 1130.0 DEWPOINT (MEAN C) 0.0 -3.9 -5.1 2.4 2.6 1.9 3.1 -0.2 -0.3 2.5 0.4 -4.7 -0.1 MIXING RATIO (G/KG) 4.69 3.54 3.22 5.64 5.50 5.29 5.82 4.54 4.57 5.38 4.71 3.25 4.68 VAPOUR PRESSURE (HPA) 6.46 4.88 4.44 7.73 7.55 7.24 7.92 6.22 6.29 7.42 6.51 4.50 6.43 SATURATION DEF. (HPA) 4.93 8.21 12.68 13.22 23.42 30.34 33.91 28.53 21.99 19.34 10.27 6.08 17.74 RELATIVE HUMIDITY (MEAN %) 59 43 31 42 28 22 21 20 26 32 47 48 35 RELATIVE HUMIDITY (MAX. %) 79 63 53 65 43 33 32 31 40 46 70 66 52 RELATIVE HUMIDITY (MIN. %) 39 22 15 24 16 12 12 11 14 18 25 29 20 RELATIVE HUMIDITY (MEAN% 03UTC) 73 60 49 56 39 30 28 29 36 43 63 63 47 RELATIVE HUMIDITY (MEAN% 09UTC) 40 27 17 27 18 15 14 12 14 19 27 32 22 RELATIVE HUMIDITY (MEAN% 15UTC) 56 36 23 34 20 15 16 15 22 27 39 43 29 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 9.5 0.0 0.6 30.1 0.1 0.0 0.0 0.0 0.0 0.0 4.0 2.0 46.3 DAYS WITH PRECIPITATION >=10 0 0 0 1 0 0 0 0 0 0 0 0 1 DAYS WITH PRECIPITATION >= 5 1 0 0 3 0 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 1 2 0 0 4 0 0 0 0 0 0 3 1 10 DAYS WITH PRECIPITATION 6 1 1 8 1 0 0 0 0 0 4 1 22 GREATEST DAILY PRECIPITATION 5.0 0.0 0.6 15.0 0.1 0.0 0.0 0.0 0.0 0.0 2.0 2.0 15.0 DAY 13 ** 21 17 14 ** ** ** ** ** 23 21 DAY WITH THUNDER STORM 0 0 1 7 1 0 0 0 0 0 2 0 11 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 7 8 7 6 6 8 11 10 2 3 5 2 75 WIND DIRECTION (PREVAILING) 225 360 360 225 360 360 360 360 360 360 360 360 360 PREVAILING WIND SPEED(KNOTS) 21.5 9.1 10.8 20.5 10.3 13.2 12.9 11.9 9.8 8.8 8.7 8.8 10.7 PREVAILING WIND PERCENT 26.2 23.2 22.7 33.3 25.0 33.8 41.1 32.3 42.9 25.0 15.8 10.9 24.9 CALMS PERCENT OF WIND 27.8 37.1 32.0 31.7 40.3 41.3 33.9 39.9 32.5 42.7 48.3 63.3 39.3 NO. OF WIND OBSERVATION 248 224 247 240 248 240 248 248 240 248 240 248 2919 VECTOR WIND DIRECTION (MEAN) 201 237 263 223 8 12 5 7 4 309 190 239 322 VECTOR WIND MAGNITUDE(KNOTS) 5.7 3.9 3.9 6.6 4.0 6.9 6.3 5.8 5.3 1.4 0.6 0.7 1.6 WIND STEADINESES (MEAN %) 52.3 39.8 39.0 62.9 55.6 88.5 80.8 84.1 79.1 20.9 11.3 15.2 20.3 WIND SPEED (MEAN KNOTS) 10.9 9.8 10.0 10.5 7.2 7.8 7.8 6.9 6.7 6.7 5.3 4.6 7.9 FASTEST WIND DIRECTION 220 220 220 220 220 360 360 20 360 210 220 220 220 FASTEST WIND SPEED (KNOTS) 35 45 45 50 35 28 35 30 20 40 30 40 50 DAY 11 24 24 4 4 2 9 1 1 25 9 20 DAYS WITH SKY CLEAR (0-2)/8 3 18 19 6 26 26 27 31 29 19 19 20 243 DAYS WITH P.CLOUDY (3-6)/8 21 10 8 18 4 4 4 0 1 12 8 11 101 DAYS WITH CLOUDY (7-8)/8 7 0 4 6 1 0 0 0 0 0 3 0 21 DAYS WITH VISIBILITY =< 2 KM 2 4 1 1 0 0 3 3 0 3 0 2 19 DURATION OF SUNSHINE HOURS 144.6 219.2 276.3 227.8 336.8 332.5 317.3 326.7 310.4 261.2 220.4 241.8 3215.0 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 864.0 862.7 863.3 860.9 861.5 858.5 855.6 858.7 862.6 865.2 867.0 865.7 862.1 MAX. QFE PRESSURE IN HPA 869.8 870.5 870.5 866.6 868.1 864.0 859.5 862.6 867.5 870.4 872.1 871.9 872.1 DAY-HOUR 17- 6 26- 6 11- 6 25- 6 21- 6 3- 6 4- 3 13- 6 30- 6 4- 6 28- 6 4- 6 MIN. QFE PRESSURE IN HPA 858.2 855.8 856.8 852.8 856.8 854.4 852.6 854.1 858.8 857.0 860.9 858.1 852.6 DAY-HOUR 11- 0 9-12 23-12 21-12 30-15 25-12 27-12 1-12 12-12 25-12 9-12 20-12 MEAN QNH PRESSURE IN HPA 1018.5 1017.0 1017.7 1015.0 1015.7 1012.2 1008.9 1012.5 1016.9 1019.9 1022.0 1020.5 1016.4 MAX. QNH PRESSURE IN HPA 1025.2 1026.0 1026.0 1021.5 1023.2 1018.5 1013.4 1016.9 1022.5 1025.8 1027.8 1027.6 1027.8 DAY-HOUR 17- 6 26- 6 11- 6 25- 6 21- 6 3- 6 4- 3 13- 6 30- 6 4- 6 28- 6 4- 6 MIN. QNH PRESSURE IN HPA 1011.9 1009.2 1010.3 1005.7 1010.3 1007.6 1005.5 1007.2 1012.6 1010.5 1015.0 1011.8 1005.5 DAY-HOUR 11- 0 9-12 23-12 21-12 30-15 25-12 27-12 1-12 12-12 25-12 9-12 20-12 MEAN QFF PRESSURE IN HPA 1017.1 1014.8 1013.2 1008.1 1005.7 1000.4 995.9 1001.4 1007.8 1011.2 1017.7 1020.3 1009.5 MAX. QFF PRESSURE IN HPA 1025.4 1024.2 1023.3 1015.8 1015.8 1007.5 1001.8 1008.2 1014.6 1019.0 1026.9 1028.4 1028.4 DAY-HOUR 17- 6 26- 6 17- 3 1- 3 21- 6 3- 3 4- 3 31- 3 27- 3 30- 3 28- 3 23- 3 MIN. QFF PRESSURE IN HPA 1007.8 1003.7 1003.0 997.7 999.4 995.1 991.6 995.3 1002.8 1000.7 1006.0 1009.4 991.6 DAY-HOUR 11- 9 10- 0 23-21 21- 9 29-12 19-15 15-12 1- 0 23- 9 25-12 9-12 21-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 863.7 862.4 863.1 860.6 861.4 858.7 855.7 858.7 862.5 865.1 866.9 865.5 862.0 MAX. QFE PRESSURE IN HPA 868.0 868.4 868.6 864.5 866.4 862.7 858.7 861.3 865.8 868.5 869.5 869.6 869.6 DAY 17 26 2 25 21 3 4 13 15 29 14 4 MIN. QFE PRESSURE IN HPA 858.2 857.3 858.3 855.0 857.6 855.8 854.0 854.3 860.0 858.9 861.5 860.4 854.0 DAY 11 10 24 21 30 25 17 1 12 26 10 21 MEAN QNH PRESSURE IN HPA 1018.2 1016.7 1017.5 1014.6 1015.6 1012.5 1009.0 1012.5 1016.8 1019.8 1021.9 1020.2 1016.3 MAX. QNH PRESSURE IN HPA 1023.1 1023.6 1023.8 1019.1 1021.3 1017.0 1012.5 1015.4 1020.6 1023.7 1024.8 1024.9 1024.9 DAY 17 26 2 25 21 3 4 13 15 29 14 4 MIN. QNH PRESSURE IN HPA 1011.9 1010.9 1012.0 1008.2 1011.2 1009.2 1007.1 1007.4 1014.0 1012.7 1015.7 1014.4 1007.1 DAY 11 10 24 21 30 25 17 1 12 26 10 21 MEAN QFF PRESSURE IN HPA 1016.4 1014.0 1012.8 1007.8 1005.8 1001.0 996.2 1001.6 1007.9 1011.1 1017.5 1019.7 1009.3 MAX. QFF PRESSURE IN HPA 1021.9 1019.9 1020.5 1013.3 1012.9 1006.6 1000.2 1006.2 1012.4 1017.4 1023.1 1025.0 1025.0 DAY 17 26 18 11 22 3 4 31 27 30 28 23 MIN. QFF PRESSURE IN HPA 1007.9 1003.7 1003.3 998.4 1000.6 996.6 992.7 995.3 1004.0 1002.1 1006.4 1010.5 992.7 DAY 11 10 24 21 30 19 15 1 23 26 10 21 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 864.2 863.0 863.8 861.4 862.4 859.4 856.5 859.4 863.1 865.8 867.6 866.2 862.7 MAX. QFE PRESSURE IN HPA 868.6 869.1 870.0 865.8 867.4 863.6 859.5 862.0 866.5 869.0 871.0 870.4 871.0 DAY 17 26 11 25 21 3 4 13 15 5 28 4 MIN. QFE PRESSURE IN HPA 860.1 858.4 858.4 855.2 858.4 856.3 854.9 855.1 860.7 859.7 861.7 861.4 854.9 DAY 11 8 24 21 30 25 27 1 12 25 10 21 MEAN QNH PRESSURE IN HPA 1018.7 1017.4 1018.3 1015.6 1016.7 1013.3 1010.0 1013.3 1017.5 1020.6 1022.6 1021.1 1017.1 MAX. QNH PRESSURE IN HPA 1023.8 1024.4 1025.4 1020.6 1022.4 1018.1 1013.4 1016.2 1021.4 1024.2 1026.5 1025.8 1026.5 DAY 17 26 11 25 21 3 4 13 15 5 28 4 MIN. QNH PRESSURE IN HPA 1014.1 1012.1 1012.1 1008.5 1012.1 1009.7 1008.1 1008.4 1014.8 1013.6 1015.9 1015.6 1008.1 DAY 11 8 24 21 30 25 27 1 12 25 10 21 MEAN QFF PRESSURE IN HPA 1018.4 1016.6 1015.2 1009.6 1007.4 1002.1 997.6 1003.1 1009.6 1013.4 1020.0 1022.8 1011.3 MAX. QFF PRESSURE IN HPA 1024.0 1022.8 1023.3 1015.8 1014.1 1007.5 1001.8 1008.2 1014.6 1019.0 1026.9 1028.4 1028.4 DAY 1 26 17 1 22 3 4 31 27 30 28 23 MIN. QFF PRESSURE IN HPA 1011.6 1007.5 1005.0 999.7 1002.1 997.8 994.3 997.2 1004.6 1005.3 1007.4 1013.6 994.3 DAY 11 10 24 21 30 20 15 1 23 26 10 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 865.4 864.0 864.7 862.2 862.8 859.7 856.6 859.9 863.8 866.6 868.5 867.3 863.5 MAX. QFE PRESSURE IN HPA 869.8 870.5 870.5 866.6 868.1 864.0 859.3 862.6 867.5 870.4 872.1 871.9 872.1 DAY 17 26 11 25 21 3 4 13 30 4 28 4 MIN. QFE PRESSURE IN HPA 858.8 859.7 859.8 855.7 858.4 856.4 854.5 856.0 860.9 860.4 863.7 862.0 854.5 DAY 11 8 23 21 30 25 27 1 12 25 10 21 MEAN QNH PRESSURE IN HPA 1020.1 1018.6 1019.3 1016.5 1017.2 1013.6 1010.1 1013.9 1018.3 1021.5 1023.7 1022.3 1017.9 MAX. QNH PRESSURE IN HPA 1025.2 1026.0 1026.0 1021.5 1023.2 1018.5 1013.2 1016.9 1022.5 1025.8 1027.8 1027.6 1027.8 DAY 17 26 11 25 21 3 4 13 30 4 28 4 MIN. QNH PRESSURE IN HPA 1012.6 1013.6 1013.7 1009.0 1012.1 1009.8 1007.7 1009.4 1015.0 1014.4 1018.2 1016.2 1007.7 DAY 11 8 23 21 30 25 27 1 12 25 10 21 MEAN QFF PRESSURE IN HPA 1018.9 1016.4 1014.6 1009.4 1006.6 1001.3 996.8 1002.3 1008.6 1012.3 1018.9 1021.9 1010.7 MAX. QFF PRESSURE IN HPA 1025.4 1024.2 1022.1 1014.8 1015.8 1006.9 1001.0 1006.4 1012.9 1018.6 1025.7 1027.2 1027.2 DAY 17 26 2 24 21 3 3 31 27 29 28 23 MIN. QFF PRESSURE IN HPA 1009.8 1009.0 1006.1 999.4 1000.6 996.6 994.0 996.6 1004.2 1004.7 1009.4 1013.6 994.0 DAY 11 23 24 21 30 30 14 1 23 26 10 21 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 863.7 862.5 863.1 861.0 861.8 858.5 855.6 858.6 862.4 865.0 866.7 865.4 862.0 MAX. QFE PRESSURE IN HPA 868.2 868.3 869.2 865.0 866.6 862.7 858.6 860.8 866.0 869.0 870.3 869.7 870.3 DAY 16 26 11 25 21 3 2 13 14 4 28 4 MIN. QFE PRESSURE IN HPA 858.2 858.0 857.6 854.0 857.9 854.9 853.6 855.2 859.7 858.6 862.3 859.4 853.6 DAY 11 8 23 21 30 25 27 1 12 25 9 20 MEAN QNH PRESSURE IN HPA 1018.2 1016.8 1017.5 1015.1 1016.0 1012.3 1008.9 1012.4 1016.7 1019.7 1021.6 1020.1 1016.3 MAX. QNH PRESSURE IN HPA 1023.3 1023.4 1024.5 1019.7 1021.5 1017.0 1012.4 1014.9 1020.8 1024.2 1025.7 1025.0 1025.7 DAY 16 26 11 25 21 3 2 13 14 4 28 4 MIN. QNH PRESSURE IN HPA 1011.9 1011.7 1011.2 1007.1 1011.6 1008.1 1006.6 1008.5 1013.6 1012.4 1016.6 1013.3 1006.6 DAY 11 8 23 21 30 25 27 1 12 25 9 20 MEAN QFF PRESSURE IN HPA 1016.0 1013.7 1012.2 1007.7 1005.5 999.9 995.6 1000.7 1006.8 1010.0 1016.3 1018.8 1008.6 MAX. QFF PRESSURE IN HPA 1021.4 1020.5 1019.4 1014.2 1014.0 1005.1 1000.2 1004.2 1011.9 1016.1 1023.1 1024.4 1024.4 DAY 17 26 1 11 21 3 2 31 14 29 28 23 MIN. QFF PRESSURE IN HPA 1007.8 1006.4 1004.1 997.7 999.7 995.3 993.3 996.0 1002.8 1002.4 1007.4 1011.4 993.3 DAY 11 8 24 21 30 27 16 1 23 25 10 20 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 862.8 861.3 861.7 859.7 860.3 857.2 854.3 857.4 861.3 863.7 865.6 864.2 860.8 MAX. QFE PRESSURE IN HPA 867.4 866.9 866.9 863.7 865.1 861.1 856.6 859.7 865.0 867.0 869.2 868.4 869.2 DAY 16 26 1 24 21 2 1 13 14 4 28 4 MIN. QFE PRESSURE IN HPA 858.6 855.8 856.8 852.8 856.9 854.4 852.6 854.1 858.8 857.0 860.9 858.1 852.6 DAY 6 9 23 21 29 25 27 1 12 25 9 20 MEAN QNH PRESSURE IN HPA 1017.1 1015.4 1015.9 1013.6 1014.3 1010.8 1007.5 1011.0 1015.4 1018.2 1020.4 1018.8 1014.9 MAX. QNH PRESSURE IN HPA 1022.4 1021.8 1021.8 1018.2 1019.8 1015.2 1010.1 1013.6 1019.7 1022.0 1024.5 1023.6 1024.5 DAY 16 26 1 24 21 2 1 13 14 4 28 4 MIN. QNH PRESSURE IN HPA 1012.4 1009.2 1010.3 1005.7 1010.4 1007.6 1005.5 1007.2 1012.6 1010.5 1015.0 1011.8 1005.5 DAY 6 9 23 21 29 25 27 1 12 25 9 20 MEAN QFF PRESSURE IN HPA 1015.3 1012.6 1011.2 1006.8 1004.4 999.3 994.6 1000.1 1006.4 1009.5 1015.9 1018.0 1007.8 MAX. QFF PRESSURE IN HPA 1020.5 1019.5 1018.3 1012.7 1012.8 1004.4 997.7 1004.4 1011.9 1015.6 1022.6 1023.4 1023.4 DAY 17 26 18 24 21 3 1 31 14 29 28 23 MIN. QFF PRESSURE IN HPA 1009.1 1003.9 1003.7 997.8 999.4 995.3 991.6 995.4 1002.9 1000.7 1006.0 1009.4 991.6 DAY 11 9 23 21 29 26 15 1 23 25 9 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 863.6 862.3 862.5 860.2 860.5 857.4 854.5 857.8 861.8 864.4 866.3 865.1 861.4 MAX. QFE PRESSURE IN HPA 868.4 867.6 867.8 864.2 864.4 861.4 857.0 860.0 865.7 867.7 869.9 869.2 869.9 DAY 16 26 1 24 21 2 2 13 14 29 28 4 MIN. QFE PRESSURE IN HPA 859.3 856.4 858.2 853.8 856.8 854.5 852.9 854.5 859.2 857.6 861.5 858.8 852.9 DAY 6 9 23 21 30 27 27 1 12 25 9 21 MEAN QNH PRESSURE IN HPA 1018.1 1016.6 1016.9 1014.2 1014.5 1011.0 1007.7 1011.5 1016.1 1019.0 1021.2 1019.8 1015.5 MAX. QNH PRESSURE IN HPA 1023.6 1022.6 1022.9 1018.8 1019.0 1015.6 1010.5 1014.0 1020.5 1022.8 1025.3 1024.5 1025.3 DAY 16 26 1 24 21 2 2 13 14 29 28 4 MIN. QNH PRESSURE IN HPA 1013.2 1009.8 1011.9 1006.9 1010.3 1007.7 1005.8 1007.7 1013.0 1011.2 1015.7 1012.6 1005.8 DAY 6 9 23 21 30 27 27 1 12 25 9 21 MEAN QFF PRESSURE IN HPA 1017.6 1015.7 1013.7 1008.1 1005.1 999.7 995.3 1001.2 1008.1 1011.8 1018.5 1021.4 1009.7 MAX. QFF PRESSURE IN HPA 1023.5 1022.5 1022.1 1013.9 1012.8 1004.9 998.6 1005.9 1014.0 1017.8 1025.2 1026.1 1026.1 DAY 17 26 16 24 21 1 4 25 14 29 28 4 MIN. QFF PRESSURE IN HPA 1011.6 1005.7 1006.2 1000.1 999.7 995.1 992.3 996.6 1003.5 1003.0 1007.6 1011.8 992.3 DAY 11 9 23 20 29 19 15 1 23 25 9 21 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 864.6 863.1 863.7 861.3 861.7 858.5 855.7 859.1 863.0 865.6 867.4 866.2 862.5 MAX. QFE PRESSURE IN HPA 869.1 867.7 869.0 865.1 866.1 862.6 858.3 861.8 866.3 868.8 870.7 869.6 870.7 DAY 16 1 1 24 20 2 3 13 14 4 28 4 MIN. QFE PRESSURE IN HPA 859.8 857.5 858.5 855.2 858.1 855.5 854.0 855.5 860.8 858.6 862.0 860.4 854.0 DAY 10 9 23 21 29 27 16 1 17 25 9 20 MEAN QNH PRESSURE IN HPA 1019.2 1017.5 1018.2 1015.4 1015.8 1012.3 1009.1 1012.9 1017.4 1020.4 1022.4 1021.0 1016.8 MAX. QNH PRESSURE IN HPA 1024.4 1022.8 1024.2 1019.8 1020.9 1016.9 1012.0 1016.0 1021.2 1024.0 1026.2 1024.9 1026.2 DAY 16 1 1 24 20 2 3 13 14 4 28 4 MIN. QNH PRESSURE IN HPA 1013.7 1011.1 1012.2 1008.5 1011.8 1008.8 1007.1 1008.8 1014.9 1012.4 1016.2 1014.4 1007.1 DAY 10 9 23 21 29 27 16 1 17 25 9 20 MEAN QFF PRESSURE IN HPA 1017.8 1015.3 1013.4 1008.2 1005.3 1000.0 995.7 1001.3 1007.7 1011.2 1017.7 1020.5 1009.5 MAX. QFF PRESSURE IN HPA 1022.5 1021.9 1021.1 1013.3 1013.6 1005.3 1000.2 1005.8 1012.2 1018.0 1024.0 1025.4 1025.4 DAY 16 1 16 24 21 3 2 31 26 29 28 23 MIN. QFF PRESSURE IN HPA 1010.6 1004.7 1003.9 999.1 1000.0 995.6 992.9 996.2 1004.2 1001.4 1007.0 1011.3 992.9 DAY 10 9 23 20 29 19 14 1 23 25 9 20 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 864.1 862.8 863.6 861.0 861.6 858.6 855.7 859.1 862.9 865.4 867.2 865.9 862.3 MAX. QFE PRESSURE IN HPA 868.7 867.7 869.0 865.1 866.6 863.0 858.7 862.0 866.0 868.7 869.8 869.4 869.8 DAY 16 1 1 24 20 3 3 13 14 28 13 3 MIN. QFE PRESSURE IN HPA 858.9 857.5 858.3 855.0 858.1 855.8 853.8 855.8 860.6 858.6 861.8 860.4 853.8 DAY 10 9 23 20 29 26 16 1 22 25 9 20 MEAN QNH PRESSURE IN HPA 1018.6 1017.2 1018.1 1015.1 1015.8 1012.3 1009.1 1012.9 1017.3 1020.1 1022.1 1020.8 1016.6 MAX. QNH PRESSURE IN HPA 1023.9 1022.8 1024.2 1019.8 1021.5 1017.4 1012.5 1016.2 1020.8 1023.9 1025.2 1024.7 1025.2 DAY 16 1 1 24 20 3 3 13 14 28 13 3 MIN. QNH PRESSURE IN HPA 1012.7 1011.1 1012.0 1008.2 1011.8 1009.2 1006.9 1009.2 1014.6 1012.4 1016.0 1014.4 1006.9 DAY 10 9 23 20 29 26 16 1 22 25 9 20 MEAN QFF PRESSURE IN HPA 1016.4 1014.1 1012.7 1007.7 1005.4 1000.0 995.7 1001.2 1007.4 1010.5 1017.0 1019.6 1009.0 MAX. QFF PRESSURE IN HPA 1022.3 1020.8 1019.9 1012.9 1013.0 1006.3 999.6 1005.5 1011.7 1016.4 1022.6 1025.0 1025.0 DAY 16 1 17 24 21 3 2 25 26 29 28 22 MIN. QFF PRESSURE IN HPA 1008.8 1003.7 1003.0 998.0 999.8 995.6 992.8 996.5 1003.5 1001.4 1006.0 1009.9 992.8 DAY 10 9 23 20 29 27 14 1 23 25 9 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.8 11.5 14.4 18.4 24.0 28.4 28.3 26.5 22.8 18.3 7.4 7.6 18.0 MINIMUN AIR TEMPERATURE (C) -0.2 6.1 7.4 10.9 15.0 18.4 18.9 16.5 13.3 9.8 -2.7 -1.0 9.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 3 9 2 1 0 0 0 15 DAYS WITH MINIMUM TEMP. <=-4 2 0 0 0 0 0 0 0 0 0 12 14 28 DAYS WITH FREEZING MIN.<= 0 23 1 2 0 0 0 0 0 0 0 22 21 69 TEMPERATURE RECORDS LOWEST(C) -4.0 0.0 -1.0 2.0 6.0 15.0 12.0 13.0 7.0 5.0 -11.0 -8.0 -11.0 DAY 2 14 26 7 13 3 4 17 5 20 26 25 MAXIMUM AIR TEMPERATURE (C) 19.3 18.2 22.4 26.4 32.5 37.0 36.4 35.3 32.0 28.1 18.6 17.5 27.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 3 5 26 30 31 31 26 14 0 0 166 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 27.0 27.0 31.0 33.0 37.0 41.0 38.0 39.0 36.0 33.0 24.0 23.0 41.0 DAY 31 1 13 22 5 22 7 2 26 1 1 3 DIF. BETWEEN (MAX.-MIN.) (C) 19.5 12.1 15.0 15.5 17.5 18.6 17.5 18.8 18.7 18.3 21.3 18.5 17.6 MEAN DAILY TEMP. (MDT) (C) 9.5 12.1 14.9 18.7 23.7 27.7 27.7 25.9 22.6 19.0 7.9 8.3 18.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 3.0 14.0 99.0 201.0 207.0 150.5 60.5 10.0 0.0 0.0 745.0 HEATING DEG. DAYS(BASE 18 0C) 262.5 166.5 117.0 32.0 2.0 0.0 0.0 0.0 1.0 26.0 301.5 301.5 1210.0 DEWPOINT (MEAN C) -4.1 1.2 -1.0 2.5 1.9 6.7 6.1 2.3 0.0 2.6 -6.7 -7.5 0.3 MIXING RATIO (G/KG) 3.39 5.00 4.31 5.57 5.24 7.53 7.12 5.48 4.75 5.49 2.89 2.69 4.96 VAPOUR PRESSURE (HPA) 4.70 6.88 5.93 7.63 7.20 10.23 9.67 7.47 6.53 7.56 4.02 3.72 6.80 SATURATION DEF. (HPA) 7.76 7.36 11.79 14.95 24.51 30.69 30.66 29.20 23.09 15.11 7.69 7.92 17.56 RELATIVE HUMIDITY (MEAN %) 44 55 39 39 26 27 26 23 25 38 40 37 35 RELATIVE HUMIDITY (MAX. %) 67 79 60 60 38 40 38 35 38 55 60 57 52 RELATIVE HUMIDITY (MIN. %) 23 30 22 22 15 18 17 13 14 23 21 21 20 RELATIVE HUMIDITY (MEAN% 03UTC) 61 74 52 53 34 35 34 31 35 51 56 51 47 RELATIVE HUMIDITY (MEAN% 09UTC) 26 36 27 24 16 19 18 15 16 24 22 23 22 RELATIVE HUMIDITY (MEAN% 15UTC) 37 47 32 32 22 23 21 18 19 32 37 34 30 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 0.0 43.9 2.2 6.5 0.0 0.1 0.0 0.0 2.0 3.6 0.0 0.4 58.7 DAYS WITH PRECIPITATION >=10 0 3 0 0 0 0 0 0 0 0 0 0 3 DAYS WITH PRECIPITATION >= 5 0 3 0 1 0 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 1 0 8 1 2 0 0 0 0 1 2 0 0 14 DAYS WITH PRECIPITATION 0 10 2 4 1 1 0 0 2 4 0 1 25 GREATEST DAILY PRECIPITATION 0.0 14.0 2.0 5.0 0.0 0.1 0.0 0.0 2.0 2.0 0.0 0.4 14.0 DAY ** 24 16 12 ** 1 ** ** 22 28 ** 28 DAY WITH THUNDER STORM 0 0 1 1 1 0 0 0 3 0 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 12 5 5 5 8 5 6 0 3 0 54 WIND DIRECTION (PREVAILING) 360 225 225 225 360 360 360 360 360 360 360 360 360 PREVAILING WIND SPEED(KNOTS) 7.6 20.1 23.4 18.1 11.4 11.9 14.3 13.5 11.0 10.3 8.5 8.9 11.0 PREVAILING WIND PERCENT 8.9 20.1 26.2 19.2 30.2 24.6 26.2 29.0 31.7 26.2 24.2 12.5 21.7 CALMS PERCENT OF WIND 62.1 32.1 24.6 27.9 36.3 43.3 43.5 50.0 36.7 51.2 63.8 46.8 43.3 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 142 217 241 257 7 9 2 359 4 1 6 161 340 VECTOR WIND MAGNITUDE(KNOTS) 1.3 3.7 6.5 3.3 4.5 5.5 6.0 5.5 4.1 2.9 2.5 1.5 1.9 WIND STEADINESES (MEAN %) 33.3 37.8 51.6 36.7 60.0 80.9 76.9 84.6 58.6 53.7 86.2 25.4 26.8 WIND SPEED (MEAN KNOTS) 3.9 9.8 12.6 9.0 7.5 6.8 7.8 6.5 7.0 5.4 2.9 5.9 7.1 FASTEST WIND DIRECTION 180 220 240 230 270 360 360 20 270 110 320 210 240 FASTEST WIND SPEED (KNOTS) 25 35 60 35 25 35 30 26 30 33 17 25 60 DAY 13 3 20 3 1 14 5 8 22 27 21 3 DAYS WITH SKY CLEAR (0-2)/8 21 8 17 8 15 22 22 30 25 11 27 20 226 DAYS WITH P.CLOUDY (3-6)/8 9 13 10 16 15 6 9 1 5 19 3 8 114 DAYS WITH CLOUDY (7-8)/8 1 7 2 6 1 2 0 0 0 1 0 3 23 DAYS WITH VISIBILITY =< 2 KM 0 4 4 3 1 0 4 8 3 2 1 1 31 DURATION OF SUNSHINE HOURS 249.0 187.1 230.8 232.0 274.4 296.8 303.4 347.1 280.6 251.9 284.8 228.7 3166.6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 866.9 863.1 861.5 861.2 861.7 857.2 855.2 857.1 861.5 865.4 868.9 865.0 862.1 MAX. QFE PRESSURE IN HPA 872.1 870.3 868.1 867.8 866.4 864.8 859.9 862.3 866.7 871.0 873.7 872.5 873.7 DAY-HOUR 1- 6 26- 6 11- 6 1- 6 2- 6 3- 6 10- 6 17- 6 21- 6 31- 6 22- 6 7- 6 MIN. QFE PRESSURE IN HPA 862.0 857.5 850.4 853.2 856.9 851.2 850.9 852.4 856.1 858.8 864.8 857.7 850.4 DAY-HOUR 27-12 10- 9 20-15 24-12 26-12 27-12 26-12 5-12 8-12 1-12 30-12 12-12 MEAN QNH PRESSURE IN HPA 1021.8 1017.5 1015.7 1015.3 1015.9 1010.8 1008.5 1010.6 1015.7 1020.1 1024.1 1019.7 1016.3 MAX. QNH PRESSURE IN HPA 1027.8 1025.7 1023.2 1022.9 1021.3 1019.4 1013.8 1016.6 1021.6 1026.5 1029.6 1028.2 1029.6 DAY-HOUR 1- 6 26- 6 11- 6 1- 6 2- 6 3- 6 10- 6 17- 6 21- 6 31- 6 22- 6 7- 6 MIN. QNH PRESSURE IN HPA 1016.2 1011.1 1003.0 1006.2 1010.4 1003.9 1003.6 1005.3 1009.5 1012.6 1019.4 1011.3 1003.0 DAY-HOUR 27-12 10- 9 20-15 24-12 26-12 27-12 26-12 5-12 8-12 1-12 30-12 12-12 MEAN QFF PRESSURE IN HPA 1020.2 1014.0 1010.7 1008.0 1005.7 998.0 995.8 999.0 1006.1 1012.9 1023.4 1018.8 1009.4 MAX. QFF PRESSURE IN HPA 1027.4 1024.5 1021.3 1017.3 1014.5 1009.1 1001.8 1006.3 1012.3 1022.9 1033.5 1029.4 1033.5 DAY-HOUR 1- 6 26- 6 3- 6 2- 3 13- 3 3- 3 4- 3 17- 3 21- 3 31- 3 26- 3 8- 3 MIN. QFF PRESSURE IN HPA 1012.3 1005.4 993.6 995.7 998.9 989.9 990.2 992.3 998.5 1002.4 1015.1 1005.3 989.9 DAY-HOUR 31-12 19-12 20-12 23-12 31-12 27- 9 25-18 1- 6 1-12 1-12 3-21 12- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 866.8 862.8 861.2 861.0 861.8 857.2 855.3 857.2 861.4 865.2 868.7 864.8 862.0 MAX. QFE PRESSURE IN HPA 869.7 867.8 866.5 866.0 865.2 863.9 858.5 861.0 864.7 869.4 871.5 871.3 871.5 DAY 1 27 11 2 3 3 11 17 21 10 10 8 MIN. QFE PRESSURE IN HPA 864.3 857.6 851.9 854.5 857.5 852.4 851.7 853.2 857.7 860.0 865.3 858.8 851.7 DAY 11 10 21 24 27 28 26 1 1 2 16 13 MEAN QNH PRESSURE IN HPA 1021.8 1017.2 1015.3 1015.1 1016.0 1010.7 1008.6 1010.8 1015.6 1019.9 1023.9 1019.4 1016.2 MAX. QNH PRESSURE IN HPA 1025.0 1022.9 1021.4 1020.8 1019.9 1018.4 1012.2 1015.1 1019.3 1024.7 1027.1 1026.9 1027.1 DAY 1 27 11 2 3 3 11 17 21 10 10 8 MIN. QNH PRESSURE IN HPA 1018.9 1011.2 1004.7 1007.7 1011.1 1005.3 1004.5 1006.2 1011.3 1014.0 1020.0 1012.6 1004.5 DAY 11 10 21 24 27 28 26 1 1 2 16 13 MEAN QFF PRESSURE IN HPA 1019.7 1013.3 1010.1 1007.7 1006.0 998.4 996.1 999.3 1006.0 1012.7 1023.0 1018.1 1009.2 MAX. QFF PRESSURE IN HPA 1024.7 1021.1 1018.1 1015.6 1012.8 1008.5 1000.3 1004.9 1010.3 1018.8 1030.5 1026.9 1030.5 DAY 2 26 4 6 13 3 4 17 21 31 26 8 MIN. QFF PRESSURE IN HPA 1014.2 1005.8 996.0 997.2 999.7 991.1 991.2 993.0 999.9 1004.9 1018.4 1006.3 991.1 DAY 14 19 21 24 27 28 26 1 2 2 17 13 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 867.5 863.4 861.9 861.8 862.6 858.1 856.1 857.8 862.1 866.0 869.4 865.5 862.7 MAX. QFE PRESSURE IN HPA 870.8 868.4 866.9 866.8 866.0 864.4 859.5 861.8 865.6 870.2 872.5 871.7 872.5 DAY 1 27 11 1 2 3 9 17 21 31 22 8 MIN. QFE PRESSURE IN HPA 864.8 857.6 853.9 855.4 858.7 853.1 852.4 853.8 857.9 861.2 865.9 859.3 852.4 DAY 10 10 21 24 27 27 26 1 8 2 16 12 MEAN QNH PRESSURE IN HPA 1022.5 1017.8 1016.2 1016.0 1017.0 1011.8 1009.5 1011.4 1016.4 1020.8 1024.7 1020.2 1017.0 MAX. QNH PRESSURE IN HPA 1026.3 1023.6 1021.8 1021.7 1020.8 1019.0 1013.4 1016.0 1020.4 1025.6 1028.2 1027.3 1028.2 DAY 1 27 11 1 2 3 9 17 21 31 22 8 MIN. QNH PRESSURE IN HPA 1019.4 1011.2 1007.0 1008.7 1012.5 1006.1 1005.3 1006.9 1011.6 1015.3 1020.7 1013.2 1005.3 DAY 10 10 21 24 27 27 26 1 8 2 16 12 MEAN QFF PRESSURE IN HPA 1022.6 1015.4 1012.3 1009.7 1007.7 999.6 997.5 1000.6 1007.9 1014.9 1025.9 1021.0 1011.2 MAX. QFF PRESSURE IN HPA 1027.1 1023.4 1020.0 1017.3 1014.5 1009.1 1001.8 1006.3 1012.3 1022.9 1033.5 1029.4 1033.5 DAY 2 26 3 2 13 3 4 17 21 31 26 8 MIN. QFF PRESSURE IN HPA 1017.1 1007.4 1000.0 999.7 1002.2 992.6 991.8 994.5 1002.3 1006.7 1020.9 1009.3 991.8 DAY 14 19 20 24 30 28 26 1 1 2 19 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 868.6 864.5 862.8 862.4 863.1 858.3 856.3 858.1 862.7 866.8 870.4 866.6 863.4 MAX. QFE PRESSURE IN HPA 872.1 870.3 868.1 867.8 866.4 864.8 859.9 862.3 866.7 871.0 873.7 872.5 873.7 DAY 1 26 11 1 2 3 10 17 21 31 22 7 MIN. QFE PRESSURE IN HPA 865.8 858.0 854.8 856.0 859.4 852.7 852.6 854.0 857.9 862.0 867.2 860.6 852.6 DAY 10 10 20 24 27 27 26 1 8 2 16 12 MEAN QNH PRESSURE IN HPA 1023.7 1019.1 1017.2 1016.7 1017.6 1012.1 1009.8 1011.8 1017.1 1021.7 1025.8 1021.5 1017.8 MAX. QNH PRESSURE IN HPA 1027.8 1025.7 1023.2 1022.9 1021.3 1019.4 1013.8 1016.6 1021.6 1026.5 1029.6 1028.2 1029.6 DAY 1 26 11 1 2 3 10 17 21 31 22 7 MIN. QNH PRESSURE IN HPA 1020.6 1011.7 1008.0 1009.4 1013.3 1005.6 1005.5 1007.1 1011.6 1016.2 1022.2 1014.6 1005.5 DAY 10 10 20 24 27 27 26 1 8 2 16 12 MEAN QFF PRESSURE IN HPA 1022.2 1015.7 1012.0 1009.1 1006.9 998.7 996.5 999.5 1007.0 1014.1 1024.6 1020.5 1010.6 MAX. QFF PRESSURE IN HPA 1027.4 1024.5 1021.3 1017.3 1012.5 1008.3 1000.7 1004.9 1011.9 1021.6 1031.3 1029.1 1031.3 DAY 1 26 3 27 13 3 4 17 21 31 26 30 MIN. QFF PRESSURE IN HPA 1016.6 1007.5 998.8 998.3 1001.6 991.5 991.3 992.3 1000.2 1005.9 1019.8 1009.1 991.3 DAY 31 15 20 24 27 27 26 1 1 2 19 12 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 866.7 863.1 861.7 861.2 861.8 857.5 855.3 857.0 861.4 865.1 868.6 864.7 862.0 MAX. QFE PRESSURE IN HPA 870.3 869.0 867.5 866.0 865.5 864.0 858.9 860.8 865.3 870.3 872.3 870.7 872.3 DAY 1 26 11 1 2 3 11 17 21 31 22 7 MIN. QFE PRESSURE IN HPA 863.7 857.5 853.0 854.8 858.0 851.5 851.8 853.6 856.9 860.8 865.7 858.4 851.5 DAY 11 10 20 24 27 27 26 1 8 2 4 12 MEAN QNH PRESSURE IN HPA 1021.6 1017.5 1015.8 1015.4 1016.1 1011.1 1008.6 1010.6 1015.6 1019.8 1023.8 1019.3 1016.3 MAX. QNH PRESSURE IN HPA 1025.7 1024.2 1022.5 1020.8 1020.2 1018.5 1012.7 1014.9 1020.0 1025.7 1028.0 1026.2 1028.0 DAY 1 26 11 1 2 3 11 17 21 31 22 7 MIN. QNH PRESSURE IN HPA 1018.2 1011.1 1006.0 1008.0 1011.7 1004.2 1004.6 1006.6 1010.4 1014.9 1020.5 1012.1 1004.2 DAY 11 10 20 24 27 27 26 1 8 2 4 12 MEAN QFF PRESSURE IN HPA 1019.1 1013.5 1010.3 1007.5 1005.2 997.9 995.4 998.4 1005.3 1011.4 1021.8 1017.3 1008.6 MAX. QFF PRESSURE IN HPA 1025.3 1022.6 1019.8 1015.0 1011.0 1007.5 999.7 1004.5 1010.3 1020.1 1028.0 1026.1 1028.0 DAY 1 26 3 27 13 3 11 18 21 31 26 30 MIN. QFF PRESSURE IN HPA 1013.8 1006.0 996.4 997.8 1000.5 989.9 991.0 992.5 999.8 1004.1 1016.3 1005.3 989.9 DAY 31 15 20 24 27 27 26 1 1 2 4 12 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 865.3 861.9 860.2 859.8 860.3 856.1 854.1 855.8 860.0 863.9 867.7 863.7 860.7 MAX. QFE PRESSURE IN HPA 868.9 867.6 865.1 864.9 863.4 862.0 857.7 859.9 863.3 868.8 871.3 870.2 871.3 DAY 1 26 3 1 2 2 10 17 20 31 22 7 MIN. QFE PRESSURE IN HPA 862.0 857.5 850.5 853.2 856.9 851.2 850.9 852.4 856.1 858.8 864.8 857.7 850.5 DAY 27 10 20 24 26 27 26 5 8 1 30 12 MEAN QNH PRESSURE IN HPA 1020.0 1016.1 1014.2 1013.8 1014.4 1009.4 1007.2 1009.2 1014.0 1018.4 1022.7 1018.1 1014.8 MAX. QNH PRESSURE IN HPA 1024.1 1022.6 1019.8 1019.6 1017.8 1016.2 1011.3 1013.8 1017.7 1024.0 1026.9 1025.6 1026.9 DAY 1 26 3 1 2 2 10 17 20 31 22 7 MIN. QNH PRESSURE IN HPA 1016.2 1011.1 1003.1 1006.2 1010.4 1003.9 1003.6 1005.3 1009.5 1012.6 1019.4 1011.3 1003.1 DAY 27 10 20 24 26 27 26 5 8 1 30 12 MEAN QFF PRESSURE IN HPA 1017.8 1012.2 1008.8 1006.4 1004.2 996.9 994.7 997.7 1004.3 1011.2 1021.7 1016.8 1007.7 MAX. QFF PRESSURE IN HPA 1023.3 1021.0 1019.1 1013.8 1010.2 1005.5 998.7 1003.7 1008.4 1019.3 1028.4 1025.3 1028.4 DAY 1 26 3 1 13 2 10 18 21 31 25 7 MIN. QFF PRESSURE IN HPA 1012.3 1005.4 993.6 995.7 998.9 990.6 990.3 992.5 998.5 1002.4 1017.4 1005.4 990.3 DAY 31 19 20 23 31 27 25 5 1 1 19 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 866.0 862.5 860.8 860.4 860.7 856.3 854.4 856.3 860.6 864.6 868.5 864.4 861.3 MAX. QFE PRESSURE IN HPA 869.3 868.0 865.5 865.8 864.0 862.3 857.8 860.4 864.1 870.0 871.8 871.0 871.8 DAY 1 26 3 1 2 2 10 17 20 31 22 7 MIN. QFE PRESSURE IN HPA 862.4 858.0 850.4 853.9 857.1 851.2 851.3 853.0 857.0 858.9 865.6 858.2 850.4 DAY 27 15 20 24 29 27 25 1 1 1 16 12 MEAN QNH PRESSURE IN HPA 1020.8 1016.9 1014.9 1014.4 1014.8 1009.7 1007.6 1009.7 1014.7 1019.3 1023.7 1019.0 1015.4 MAX. QNH PRESSURE IN HPA 1024.6 1023.1 1020.2 1020.6 1018.5 1016.6 1011.4 1014.4 1018.6 1025.4 1027.4 1026.5 1027.4 DAY 1 26 3 1 2 2 10 17 20 31 22 7 MIN. QNH PRESSURE IN HPA 1016.7 1011.7 1003.0 1007.0 1010.6 1003.9 1004.0 1006.0 1010.5 1012.7 1020.4 1011.9 1003.0 DAY 27 15 20 24 29 27 25 1 1 1 16 12 MEAN QFF PRESSURE IN HPA 1020.8 1014.4 1010.9 1008.0 1005.4 997.3 995.5 998.8 1006.1 1013.4 1024.8 1019.6 1009.6 MAX. QFF PRESSURE IN HPA 1025.8 1022.6 1020.6 1016.2 1011.0 1006.5 999.1 1004.8 1010.5 1022.8 1031.2 1028.5 1031.2 DAY 1 26 3 1 13 2 10 18 19 31 25 7 MIN. QFF PRESSURE IN HPA 1016.2 1007.1 994.6 997.3 999.8 990.3 990.8 993.7 1000.4 1003.5 1020.3 1007.2 990.3 DAY 13 19 20 23 29 27 26 5 1 1 18 12 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 867.2 863.5 861.9 861.6 861.8 857.3 855.3 857.4 861.9 865.8 869.2 865.4 862.4 MAX. QFE PRESSURE IN HPA 869.7 869.0 866.3 867.1 864.9 863.9 858.5 861.2 865.2 870.8 872.0 871.6 872.0 DAY 5 26 10 26 1 2 10 17 21 31 22 7 MIN. QFE PRESSURE IN HPA 864.5 859.6 851.0 855.2 857.3 852.4 851.9 853.7 858.1 859.7 866.2 858.8 851.0 DAY 10 15 20 23 29 27 25 5 1 1 16 12 MEAN QNH PRESSURE IN HPA 1022.2 1018.0 1016.2 1015.8 1016.0 1010.9 1008.6 1011.0 1016.1 1020.6 1024.5 1020.2 1016.7 MAX. QNH PRESSURE IN HPA 1025.0 1024.2 1021.2 1022.1 1019.6 1018.4 1012.2 1015.3 1019.9 1026.3 1027.7 1027.2 1027.7 DAY 5 26 10 26 1 2 10 17 21 31 22 7 MIN. QNH PRESSURE IN HPA 1019.1 1013.5 1003.7 1008.5 1010.9 1005.3 1004.7 1006.8 1011.8 1013.6 1021.0 1012.6 1003.7 DAY 10 15 20 23 29 27 25 5 1 1 16 12 MEAN QFF PRESSURE IN HPA 1020.6 1014.6 1010.9 1008.1 1005.3 997.5 995.3 998.7 1006.0 1013.1 1023.4 1019.2 1009.4 MAX. QFF PRESSURE IN HPA 1025.2 1022.8 1021.0 1016.5 1011.8 1007.1 1000.1 1004.3 1010.2 1022.0 1030.7 1028.2 1030.7 DAY 1 26 3 26 12 2 3 17 21 31 25 30 MIN. QFF PRESSURE IN HPA 1014.9 1008.3 994.1 996.9 999.1 990.6 990.2 993.4 999.0 1003.2 1019.2 1006.8 990.2 DAY 31 19 20 23 26 27 25 5 1 1 18 12 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 867.0 863.2 861.8 861.3 861.7 857.1 855.3 857.4 861.9 865.7 868.8 865.0 862.2 MAX. QFE PRESSURE IN HPA 869.7 868.4 866.5 866.3 865.0 863.9 858.5 861.0 864.9 870.7 872.0 871.3 872.0 DAY 5 26 10 1 2 2 10 17 19 31 22 7 MIN. QFE PRESSURE IN HPA 864.2 858.0 851.4 855.1 857.1 852.4 851.9 853.7 858.1 859.9 865.5 858.8 851.4 DAY 27 14 20 23 29 27 25 5 1 1 3 12 MEAN QNH PRESSURE IN HPA 1022.0 1017.6 1016.0 1015.4 1015.9 1010.7 1008.6 1011.0 1016.1 1020.5 1024.0 1019.7 1016.5 MAX. QNH PRESSURE IN HPA 1025.0 1023.6 1021.4 1021.2 1019.7 1018.4 1012.2 1015.1 1019.6 1026.2 1027.7 1026.9 1027.7 DAY 5 26 10 1 2 2 10 17 19 31 22 7 MIN. QNH PRESSURE IN HPA 1018.8 1011.7 1004.1 1008.4 1010.6 1005.3 1004.7 1006.8 1011.8 1013.8 1020.2 1012.6 1004.1 DAY 27 14 20 23 29 27 25 5 1 1 3 12 MEAN QFF PRESSURE IN HPA 1019.4 1013.5 1010.5 1007.5 1005.1 997.6 995.4 998.9 1006.0 1012.3 1022.2 1017.8 1008.8 MAX. QFF PRESSURE IN HPA 1025.5 1021.2 1019.4 1016.0 1012.3 1007.0 999.4 1004.5 1010.0 1021.3 1029.8 1026.6 1029.8 DAY 1 26 3 5 12 2 3 17 15 31 25 30 MIN. QFF PRESSURE IN HPA 1013.1 1007.2 994.6 998.0 999.3 990.1 991.1 993.5 999.0 1003.3 1015.1 1006.4 990.1 DAY 31 14 20 23 29 27 25 5 1 1 3 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.4 10.6 13.8 18.3 23.5 26.8 28.7 26.3 23.7 17.6 13.8 6.5 17.9 MINIMUN AIR TEMPERATURE (C) -4.7 3.8 5.9 10.2 14.6 16.7 18.5 15.5 13.3 7.9 4.7 -1.9 8.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 3 4 6 2 0 0 0 0 15 DAYS WITH MINIMUM TEMP. <=-4 20 1 0 0 0 0 0 0 0 0 0 11 32 DAYS WITH FREEZING MIN.<= 0 26 11 2 0 0 0 0 0 0 0 1 20 60 TEMPERATURE RECORDS LOWEST(C) -16.0 -4.0 -1.0 1.0 8.0 11.0 14.0 10.0 9.0 2.0 -2.0 -11.0 -16.0 DAY 9 8 1 1 1 10 7 26 27 24 30 29 MAXIMUM AIR TEMPERATURE (C) 15.3 18.3 21.3 26.0 31.4 34.9 36.5 35.6 33.2 27.4 23.0 14.6 26.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 6 20 30 31 31 30 11 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) 25.0 24.0 29.0 32.0 38.0 39.0 40.0 39.0 37.0 33.0 27.0 24.0 40.0 DAY 19 1 8 21 18 1 8 3 8 3 3 18 DIF. BETWEEN (MAX.-MIN.) (C) 20.0 14.5 15.4 15.8 16.8 18.2 18.0 20.1 19.9 19.5 18.3 16.5 17.8 MEAN DAILY TEMP. (MDT) (C) 5.3 11.0 13.6 18.1 23.0 25.8 27.5 25.5 23.3 17.6 13.9 6.4 17.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 14.5 87.0 143.5 202.0 140.0 69.5 9.0 0.0 0.0 665.5 HEATING DEG. DAYS(BASE 18 0C) 394.0 195.0 139.0 48.5 3.5 0.0 0.0 0.0 0.0 55.5 123.5 361.0 1320.0 DEWPOINT (MEAN C) -7.0 0.2 -0.4 3.2 3.0 3.4 6.0 8.1 3.5 0.2 -0.4 -3.6 1.3 MIXING RATIO (G/KG) 2.86 4.75 4.46 5.77 5.71 5.93 7.01 8.19 5.89 4.62 4.42 3.67 5.27 VAPOUR PRESSURE (HPA) 3.95 6.53 6.12 7.90 7.83 8.09 9.52 11.10 8.06 6.38 6.10 5.06 7.22 SATURATION DEF. (HPA) 6.28 7.25 10.59 14.56 22.93 29.17 31.82 25.36 23.29 15.65 10.80 5.42 16.93 RELATIVE HUMIDITY (MEAN %) 43 54 42 40 29 24 25 33 29 34 40 53 37 RELATIVE HUMIDITY (MAX. %) 61 75 64 61 43 36 37 47 43 51 55 73 54 RELATIVE HUMIDITY (MIN. %) 26 33 23 23 17 14 16 22 17 20 25 32 22 RELATIVE HUMIDITY (MEAN% 03UTC) 57 66 56 54 39 30 31 42 39 47 52 66 48 RELATIVE HUMIDITY (MEAN% 09UTC) 28 37 25 25 18 15 17 24 18 21 27 37 24 RELATIVE HUMIDITY (MEAN% 15UTC) 41 50 36 35 23 21 21 29 25 30 37 47 33 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 0.0 47.0 15.6 4.4 0.2 0.0 0.0 0.0 0.2 0.2 0.1 9.3 77.0 DAYS WITH PRECIPITATION >=10 0 2 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH PRECIPITATION >= 5 0 3 1 0 0 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 1 0 5 5 4 0 0 0 0 0 0 0 3 17 DAYS WITH PRECIPITATION 2 6 5 8 1 0 1 0 1 2 1 3 30 GREATEST DAILY PRECIPITATION 0.0 23.0 5.0 1.4 0.2 0.0 0.0 0.0 0.2 0.1 0.1 4.2 23.0 DAY ** 18 24 24 30 ** ** ** 29 9 18 9 DAY WITH THUNDER STORM 1 3 4 0 0 0 0 0 0 0 1 2 11 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 4 15 15 10 5 9 6 3 4 1 2 5 79 WIND DIRECTION (PREVAILING) 360 225 225 225 360 360 360 360 360 360 360 360 360 PREVAILING WIND SPEED(KNOTS) 8.7 22.7 20.9 20.6 10.2 11.4 11.8 10.3 10.6 8.6 8.5 8.4 10.1 PREVAILING WIND PERCENT 15.3 37.9 24.2 28.8 29.8 32.5 40.3 35.1 26.7 23.4 17.5 17.7 23.6 CALMS PERCENT OF WIND 46.4 21.4 34.7 26.7 30.2 35.0 38.7 44.8 51.7 52.8 55.4 44.0 40.3 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 195 223 225 237 357 8 15 2 15 346 309 179 309 VECTOR WIND MAGNITUDE(KNOTS) 1.4 8.7 5.0 5.4 3.7 5.1 6.5 4.7 3.7 2.5 0.9 2.1 1.3 WIND STEADINESES (MEAN %) 19.7 64.4 52.1 51.4 48.1 68.9 89.0 82.5 74.0 54.3 19.1 31.3 17.3 WIND SPEED (MEAN KNOTS) 7.1 13.5 9.6 10.5 7.7 7.4 7.3 5.7 5.0 4.6 4.7 6.7 7.5 FASTEST WIND DIRECTION 200 220 220 230 320 10 10 300 330 330 220 210 220 FASTEST WIND SPEED (KNOTS) 35 45 40 35 30 30 30 25 22 25 27 45 45 DAY 22 6 9 15 23 26 14 3 1 25 20 23 DAYS WITH SKY CLEAR (0-2)/8 13 8 8 5 17 24 25 27 19 24 6 13 189 DAYS WITH P.CLOUDY (3-6)/8 10 12 17 16 12 6 6 4 11 7 18 12 131 DAYS WITH CLOUDY (7-8)/8 8 8 6 9 2 0 0 0 0 0 6 6 45 DAYS WITH VISIBILITY =< 2 KM 2 7 6 2 0 4 5 2 2 1 1 3 35 DURATION OF SUNSHINE HOURS 217.2 172.7 215.5 210.9 286.2 307.0 309.5 341.0 274.2 277.8 197.5 178.3 2987.8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 866.4 862.6 860.1 860.8 861.2 857.2 854.2 855.6 860.0 866.2 865.3 864.4 861.2 MAX. QFE PRESSURE IN HPA 872.9 869.5 871.0 867.5 868.1 863.2 858.6 860.5 863.9 872.3 870.1 872.3 872.9 DAY-HOUR 13- 6 28- 6 3- 6 4- 6 3- 6 3- 3 14- 3 31- 3 21- 6 15- 6 12- 6 16- 6 MIN. QFE PRESSURE IN HPA 859.9 855.4 847.5 851.7 854.6 852.7 848.9 850.4 854.9 857.2 860.5 854.0 847.5 DAY-HOUR 21- 0 6-15 24- 0 27-12 19-12 28-15 10-15 5-12 11-12 3-12 26-12 23-21 MEAN QNH PRESSURE IN HPA 1021.3 1017.0 1014.1 1014.8 1015.4 1010.8 1007.3 1008.9 1014.0 1021.0 1020.0 1019.0 1015.3 MAX. QNH PRESSURE IN HPA 1028.7 1024.8 1026.5 1022.5 1023.2 1017.6 1012.4 1014.5 1018.4 1028.0 1025.5 1028.0 1028.7 DAY-HOUR 13- 6 28- 6 3- 6 4- 6 3- 6 3- 3 14- 3 31- 3 21- 6 15- 6 12- 6 16- 6 MIN. QNH PRESSURE IN HPA 1013.8 1008.7 999.7 1004.5 1007.8 1005.6 1001.3 1003.0 1008.1 1010.8 1014.5 1007.1 999.7 DAY-HOUR 21- 0 6-15 24- 0 27-12 19-12 28-15 10-15 5-12 11-12 3-12 26-12 23-21 MEAN QFF PRESSURE IN HPA 1021.8 1014.0 1009.4 1007.6 1005.4 998.9 994.3 997.1 1003.8 1014.3 1015.4 1018.7 1008.4 MAX. QFF PRESSURE IN HPA 1032.8 1025.1 1025.9 1019.8 1015.7 1008.9 1000.0 1004.7 1010.7 1024.7 1021.6 1028.4 1032.8 DAY-HOUR 7- 3 21- 6 1- 3 4- 6 3- 6 8- 3 16- 3 31- 3 26- 3 28- 3 10- 3 30-15 MIN. QFF PRESSURE IN HPA 1006.8 1004.3 992.0 995.8 995.4 992.0 987.2 988.8 997.1 1000.4 1008.0 1003.5 987.2 DAY-HOUR 21- 0 13-12 24- 0 26-12 19-15 23- 0 10- 9 5-12 11-12 3-12 26-12 23-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 866.3 862.1 859.8 860.5 861.2 857.3 854.4 855.7 860.1 865.9 865.1 864.1 861.0 MAX. QFE PRESSURE IN HPA 871.3 866.4 868.9 865.1 866.8 862.8 857.8 859.1 862.5 870.0 867.8 870.2 871.3 DAY 7 21 4 13 3 3 15 31 26 16 6 16 MIN. QFE PRESSURE IN HPA 859.9 857.7 847.5 853.0 855.1 853.8 850.3 852.4 857.3 859.6 862.2 854.6 847.5 DAY 21 16 24 27 19 23 10 6 12 4 28 24 MEAN QNH PRESSURE IN HPA 1021.1 1016.3 1013.8 1014.5 1015.4 1010.8 1007.5 1009.0 1014.0 1020.8 1019.8 1018.7 1015.1 MAX. QNH PRESSURE IN HPA 1026.9 1021.3 1024.1 1019.8 1021.7 1017.2 1011.4 1012.9 1016.8 1025.4 1022.9 1025.6 1026.9 DAY 7 21 4 13 3 3 15 31 26 16 6 16 MIN. QNH PRESSURE IN HPA 1013.8 1011.3 999.7 1006.0 1008.4 1006.9 1002.9 1005.3 1010.9 1013.5 1016.5 1007.8 999.7 DAY 21 16 24 27 19 23 10 6 12 4 28 24 MEAN QFF PRESSURE IN HPA 1021.3 1013.1 1008.8 1007.3 1005.6 999.2 994.7 997.2 1003.9 1013.9 1015.0 1018.0 1008.2 MAX. QFF PRESSURE IN HPA 1031.1 1022.4 1023.1 1015.6 1014.5 1007.2 998.8 1001.9 1008.7 1021.7 1018.2 1025.6 1031.1 DAY 7 21 1 5 3 8 16 31 26 27 10 16 MIN. QFF PRESSURE IN HPA 1006.8 1006.6 992.0 996.8 996.5 992.0 989.2 991.4 1000.2 1002.5 1009.8 1004.5 989.2 DAY 21 16 24 26 19 23 10 4 11 4 26 24 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 866.8 862.9 860.8 861.5 862.2 858.3 855.1 856.5 860.8 867.0 866.0 864.9 861.9 MAX. QFE PRESSURE IN HPA 871.7 868.0 869.3 866.5 867.9 863.2 858.6 860.5 863.0 870.7 869.1 871.2 871.7 DAY 13 28 4 13 3 3 14 31 22 27 12 16 MIN. QFE PRESSURE IN HPA 860.9 858.4 848.8 854.2 857.0 855.0 850.9 853.0 857.6 861.1 862.2 855.7 848.8 DAY 21 13 24 27 19 6 10 5 11 4 26 24 MEAN QNH PRESSURE IN HPA 1021.8 1017.2 1014.9 1015.7 1016.4 1012.0 1008.3 1009.9 1014.8 1021.9 1020.9 1019.5 1016.1 MAX. QNH PRESSURE IN HPA 1027.3 1023.1 1024.6 1021.4 1023.0 1017.6 1012.4 1014.5 1017.4 1026.2 1024.4 1026.8 1027.3 DAY 13 28 4 13 3 3 14 31 22 27 12 16 MIN. QNH PRESSURE IN HPA 1015.0 1012.1 1001.2 1007.3 1010.5 1008.2 1003.6 1006.0 1011.2 1015.2 1016.5 1009.0 1001.2 DAY 21 13 24 27 19 6 10 5 11 4 26 24 MEAN QFF PRESSURE IN HPA 1024.1 1015.3 1011.5 1009.5 1007.1 1000.9 996.3 999.3 1005.9 1016.7 1017.8 1020.6 1010.4 MAX. QFF PRESSURE IN HPA 1032.8 1024.2 1025.9 1018.9 1015.2 1008.9 1000.0 1004.7 1010.7 1024.7 1021.6 1028.4 1032.8 DAY 7 21 1 4 3 8 16 31 26 28 10 16 MIN. QFF PRESSURE IN HPA 1010.0 1008.3 994.8 999.2 998.3 994.2 990.3 993.0 1001.4 1006.1 1010.2 1006.5 990.3 DAY 21 16 24 27 19 6 10 4 11 4 26 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 868.2 864.2 861.7 862.2 862.7 858.4 855.2 856.7 861.4 867.7 866.9 866.1 862.6 MAX. QFE PRESSURE IN HPA 872.9 869.5 871.0 867.5 868.1 862.4 858.4 860.4 863.9 872.3 870.1 872.3 872.9 DAY 13 28 3 4 3 3 15 31 21 15 12 16 MIN. QFE PRESSURE IN HPA 862.1 858.8 850.0 854.5 857.0 855.1 850.5 853.0 858.0 861.5 862.0 857.9 850.0 DAY 21 13 24 27 19 6 10 5 11 3 26 24 MEAN QNH PRESSURE IN HPA 1023.3 1018.7 1015.9 1016.4 1017.0 1012.2 1008.4 1010.2 1015.5 1022.8 1021.9 1020.9 1016.9 MAX. QNH PRESSURE IN HPA 1028.7 1024.8 1026.5 1022.5 1023.2 1016.7 1012.1 1014.4 1018.4 1028.0 1025.5 1028.0 1028.7 DAY 13 28 3 4 3 3 15 31 21 15 12 16 MIN. QNH PRESSURE IN HPA 1016.4 1012.6 1002.5 1007.7 1010.5 1008.4 1003.1 1006.0 1011.7 1015.7 1016.2 1011.6 1002.5 DAY 21 13 24 27 19 6 10 5 11 3 26 24 MEAN QFF PRESSURE IN HPA 1023.9 1015.7 1011.1 1009.0 1006.8 999.8 995.0 997.9 1004.7 1015.6 1016.8 1020.5 1009.7 MAX. QFF PRESSURE IN HPA 1032.6 1025.1 1025.9 1019.8 1015.7 1005.7 999.2 1003.7 1009.2 1023.3 1020.0 1028.4 1032.6 DAY 7 21 1 4 3 8 15 29 26 28 10 28 MIN. QFF PRESSURE IN HPA 1010.6 1008.1 997.0 999.0 997.8 993.8 988.3 991.0 999.9 1005.5 1009.4 1007.8 988.3 DAY 21 13 24 27 19 6 10 5 11 3 26 24 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 866.2 862.5 860.2 860.7 861.1 857.0 854.0 855.3 859.7 865.7 864.8 863.9 860.9 MAX. QFE PRESSURE IN HPA 871.1 868.3 869.9 866.4 866.0 861.0 857.4 859.2 862.3 870.6 867.9 869.9 871.1 DAY 7 21 3 4 3 2 14 31 21 15 6 16 MIN. QFE PRESSURE IN HPA 861.0 856.7 850.5 853.3 855.4 853.9 849.4 851.8 855.9 859.0 861.4 855.6 849.4 DAY 21 13 24 27 19 28 10 5 11 3 26 24 MEAN QNH PRESSURE IN HPA 1021.0 1016.9 1014.2 1014.7 1015.2 1010.5 1007.1 1008.6 1013.6 1020.5 1019.5 1018.4 1015.0 MAX. QNH PRESSURE IN HPA 1026.6 1023.4 1025.3 1021.3 1020.8 1015.1 1011.0 1013.0 1016.6 1026.1 1023.0 1025.3 1026.6 DAY 7 21 3 4 3 2 14 31 21 15 6 16 MIN. QNH PRESSURE IN HPA 1015.1 1010.2 1003.1 1006.3 1008.7 1007.0 1001.8 1004.6 1009.3 1012.8 1015.6 1008.9 1001.8 DAY 21 13 24 27 19 28 10 5 11 3 26 24 MEAN QFF PRESSURE IN HPA 1020.5 1013.1 1008.8 1007.0 1004.8 998.1 993.6 996.0 1002.6 1012.9 1013.8 1017.0 1007.3 MAX. QFF PRESSURE IN HPA 1030.4 1023.6 1023.3 1017.5 1013.3 1003.5 998.0 1001.7 1006.8 1020.7 1017.2 1023.9 1030.4 DAY 7 21 1 4 3 16 15 31 26 28 6 28 MIN. QFF PRESSURE IN HPA 1009.7 1005.2 997.3 997.9 995.9 992.9 987.2 990.0 997.2 1001.7 1008.2 1005.1 987.2 DAY 21 13 24 27 19 22 10 5 11 3 26 24 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 865.1 861.4 858.7 859.2 859.8 855.9 853.0 854.1 858.5 864.6 863.8 863.1 859.8 MAX. QFE PRESSURE IN HPA 870.0 865.6 868.0 864.8 864.0 860.5 856.6 858.2 861.4 869.3 866.8 868.7 870.0 DAY 13 21 3 4 10 7 14 31 26 15 6 16 MIN. QFE PRESSURE IN HPA 860.3 856.3 847.6 851.7 854.6 853.1 849.1 850.4 854.9 857.2 860.5 855.4 847.6 DAY 22 6 24 27 19 28 10 5 11 3 26 23 MEAN QNH PRESSURE IN HPA 1019.8 1015.5 1012.4 1013.1 1013.7 1009.3 1005.9 1007.2 1012.2 1019.2 1018.3 1017.5 1013.7 MAX. QNH PRESSURE IN HPA 1025.4 1020.4 1023.1 1019.4 1018.5 1014.5 1010.1 1011.9 1015.6 1024.6 1021.7 1023.9 1025.4 DAY 13 21 3 4 10 7 14 31 26 15 6 16 MIN. QNH PRESSURE IN HPA 1014.3 1009.7 999.8 1004.5 1007.8 1006.1 1001.5 1003.0 1008.1 1010.8 1014.5 1008.7 999.8 DAY 22 6 24 27 19 28 10 5 11 3 26 23 MEAN QFF PRESSURE IN HPA 1019.7 1012.4 1007.5 1005.7 1003.9 997.6 993.0 995.2 1002.0 1012.3 1013.4 1016.8 1006.6 MAX. QFF PRESSURE IN HPA 1028.4 1020.8 1021.6 1014.9 1011.3 1004.4 996.4 1000.8 1007.7 1019.8 1016.4 1024.0 1028.4 DAY 7 21 1 4 3 16 14 31 26 26 6 30 MIN. QFF PRESSURE IN HPA 1008.5 1004.3 994.3 995.8 995.4 992.2 987.9 988.8 997.1 1000.4 1008.0 1005.3 987.9 DAY 21 13 24 26 19 23 10 5 11 3 26 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 865.9 862.2 859.4 860.0 860.3 856.2 853.1 854.4 859.2 865.4 864.7 864.0 860.4 MAX. QFE PRESSURE IN HPA 870.7 866.6 868.8 865.4 864.7 861.1 856.8 858.0 862.5 870.3 867.7 869.5 870.7 DAY 13 28 3 4 10 16 14 31 26 15 12 16 MIN. QFE PRESSURE IN HPA 861.0 855.4 848.0 852.7 855.1 852.7 848.9 850.9 855.5 858.2 861.6 856.6 848.0 DAY 22 6 24 26 19 28 10 5 11 3 26 23 MEAN QNH PRESSURE IN HPA 1020.7 1016.5 1013.3 1013.9 1014.3 1009.7 1006.0 1007.5 1013.0 1020.2 1019.4 1018.5 1014.4 MAX. QNH PRESSURE IN HPA 1026.2 1021.5 1024.0 1020.1 1019.3 1015.2 1010.3 1011.7 1016.8 1025.7 1022.8 1024.8 1026.2 DAY 13 28 3 4 10 16 14 31 26 15 12 16 MIN. QNH PRESSURE IN HPA 1015.1 1008.7 1000.2 1005.6 1008.4 1005.6 1001.3 1003.6 1008.8 1011.9 1015.8 1010.1 1000.2 DAY 22 6 24 26 19 28 10 5 11 3 26 23 MEAN QFF PRESSURE IN HPA 1022.8 1014.7 1009.9 1007.5 1004.9 998.5 993.8 996.7 1004.0 1015.0 1016.3 1019.5 1008.6 MAX. QFF PRESSURE IN HPA 1030.9 1024.6 1024.3 1018.3 1011.9 1006.2 997.4 1002.7 1010.4 1023.5 1019.9 1028.4 1030.9 DAY 6 4 1 4 3 7 14 29 26 28 12 30 MIN. QFF PRESSURE IN HPA 1011.0 1006.1 994.6 996.8 995.4 993.1 987.8 990.3 1000.0 1003.3 1010.0 1008.0 987.8 DAY 21 6 23 26 19 22 10 4 11 3 26 24 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 866.7 863.1 860.3 861.3 861.4 857.4 854.4 856.0 860.5 866.7 865.7 864.8 861.5 MAX. QFE PRESSURE IN HPA 871.7 867.9 869.5 866.5 866.0 863.1 858.0 859.3 863.1 871.7 868.6 870.9 871.7 DAY 6 28 3 4 10 7 14 31 26 15 12 15 MIN. QFE PRESSURE IN HPA 861.0 857.5 849.3 853.4 856.3 854.2 850.3 852.1 857.5 858.8 863.0 854.7 849.3 DAY 4 6 24 26 18 22 10 4 6 3 26 23 MEAN QNH PRESSURE IN HPA 1021.6 1017.5 1014.3 1015.4 1015.5 1010.9 1007.6 1009.4 1014.5 1021.6 1020.5 1019.5 1015.7 MAX. QNH PRESSURE IN HPA 1027.3 1023.0 1024.8 1021.4 1020.8 1017.5 1011.7 1013.2 1017.5 1027.3 1023.8 1026.4 1027.3 DAY 6 28 3 4 10 7 14 31 26 15 12 15 MIN. QNH PRESSURE IN HPA 1015.1 1011.1 1001.7 1006.4 1009.7 1007.3 1002.9 1004.9 1011.1 1012.6 1017.4 1007.9 1001.7 DAY 4 6 24 26 18 22 10 4 6 3 26 23 MEAN QFF PRESSURE IN HPA 1022.0 1014.6 1009.4 1007.8 1005.2 998.6 994.1 997.2 1003.8 1014.5 1015.5 1019.1 1008.5 MAX. QFF PRESSURE IN HPA 1031.5 1024.5 1022.3 1018.5 1013.4 1007.1 997.9 1001.9 1009.4 1022.0 1018.8 1027.3 1031.5 DAY 6 28 1 4 3 7 15 26 26 26 9 28 MIN. QFF PRESSURE IN HPA 1011.3 1006.5 994.7 997.6 997.0 992.4 988.2 990.0 999.4 1001.3 1010.8 1005.5 988.2 DAY 21 25 23 26 19 22 10 4 6 3 20 23 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 866.2 862.8 860.0 861.0 861.3 857.6 854.6 856.2 860.4 866.5 865.5 864.7 861.4 MAX. QFE PRESSURE IN HPA 871.3 868.0 868.9 865.7 865.8 862.8 858.5 859.4 862.9 871.7 868.6 871.2 871.7 DAY 6 28 3 4 9 2 14 28 26 15 12 15 MIN. QFE PRESSURE IN HPA 860.8 857.9 849.1 853.0 855.1 854.2 850.2 852.9 857.5 858.8 862.6 854.0 849.1 DAY 20 15 23 26 18 22 9 4 11 3 26 23 MEAN QNH PRESSURE IN HPA 1021.0 1017.2 1014.0 1015.1 1015.5 1011.2 1007.8 1009.6 1014.4 1021.4 1020.2 1019.3 1015.6 MAX. QNH PRESSURE IN HPA 1026.9 1023.1 1024.1 1020.5 1020.6 1017.2 1012.2 1013.3 1017.3 1027.3 1023.8 1026.8 1027.3 DAY 6 28 3 4 9 2 14 28 26 15 12 15 MIN. QNH PRESSURE IN HPA 1014.9 1011.6 1001.5 1006.0 1008.4 1007.3 1002.8 1005.8 1011.1 1012.6 1016.9 1007.1 1001.5 DAY 20 15 23 26 18 22 9 4 11 3 26 23 MEAN QFF PRESSURE IN HPA 1020.4 1013.6 1008.4 1007.2 1005.0 998.8 994.3 997.2 1003.6 1013.9 1014.7 1018.0 1007.9 MAX. QFF PRESSURE IN HPA 1030.1 1023.6 1020.3 1016.6 1013.3 1006.2 998.8 1001.9 1007.9 1021.4 1017.4 1026.2 1030.1 DAY 6 28 3 4 3 7 14 28 26 26 9 15 MIN. QFF PRESSURE IN HPA 1008.0 1006.1 992.9 996.6 995.8 992.5 988.4 991.2 999.4 1000.7 1010.0 1003.5 988.4 DAY 20 15 23 26 18 22 9 4 6 3 13 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.2 6.6 15.0 18.8 21.8 28.1 27.9 27.0 22.6 18.3 12.8 9.2 17.9 MINIMUN AIR TEMPERATURE (C) 0.1 1.1 8.0 11.9 13.9 19.0 18.0 16.8 11.6 8.9 4.4 3.2 9.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 6 5 1 0 0 0 0 12 DAYS WITH MINIMUM TEMP. <=-4 11 3 0 0 0 0 0 0 0 0 0 3 17 DAYS WITH FREEZING MIN.<= 0 19 10 3 0 0 0 0 0 0 0 4 10 46 TEMPERATURE RECORDS LOWEST(C) -8.0 -11.0 -1.0 6.0 7.0 15.0 14.0 11.0 6.0 3.0 0.0 -7.0 -11.0 DAY 21 7 27 7 6 1 15 26 20 31 23 31 MAXIMUM AIR TEMPERATURE (C) 15.2 12.9 22.4 25.7 28.8 36.0 36.2 35.9 32.4 27.5 22.3 16.3 26.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 3 7 16 30 31 31 26 7 0 0 151 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 22.0 21.0 32.0 33.0 34.0 41.0 41.0 40.0 36.0 33.0 26.0 24.0 41.0 DAY 7 22 16 19 27 16 6 13 9 1 7 1 DIF. BETWEEN (MAX.-MIN.) (C) 15.1 11.8 14.4 13.8 14.9 17.0 18.2 19.1 20.8 18.6 17.9 13.1 16.3 MEAN DAILY TEMP. (MDT) (C) 7.6 7.0 15.2 18.8 21.4 27.5 27.1 26.4 22.0 18.2 13.3 9.8 17.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 4.0 16.5 54.0 195.5 189.5 166.5 44.0 4.0 0.0 0.0 674.0 HEATING DEG. DAYS(BASE 18 0C) 322.0 320.0 104.0 33.0 13.0 0.0 0.0 0.0 0.5 28.5 140.0 255.5 1216.5 DEWPOINT (MEAN C) -4.0 0.2 0.4 2.0 2.8 6.4 4.2 7.7 2.8 2.4 -0.6 1.4 2.1 MIXING RATIO (G/KG) 3.49 4.80 4.79 5.34 5.77 7.36 6.25 7.97 5.58 5.36 4.34 5.11 5.51 VAPOUR PRESSURE (HPA) 4.81 6.61 6.58 7.33 7.92 10.02 8.50 10.82 7.66 7.39 6.01 7.04 7.56 SATURATION DEF. (HPA) 6.15 3.71 11.68 15.70 19.53 29.84 31.12 27.19 22.01 15.31 9.92 5.47 16.47 RELATIVE HUMIDITY (MEAN %) 48 67 41 37 31 28 24 31 29 37 43 61 40 RELATIVE HUMIDITY (MAX. %) 68 86 62 54 46 41 36 43 42 52 61 79 56 RELATIVE HUMIDITY (MIN. %) 29 47 24 22 19 17 15 21 18 23 26 42 25 RELATIVE HUMIDITY (MEAN% 03UTC) 61 81 57 49 42 34 31 38 36 46 57 75 51 RELATIVE HUMIDITY (MEAN% 09UTC) 33 54 26 25 21 19 16 23 19 25 27 45 28 RELATIVE HUMIDITY (MEAN% 15UTC) 44 60 36 31 24 22 20 25 25 33 40 59 35 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 9.2 72.8 11.0 8.0 1.0 0.5 0.0 0.0 0.0 0.0 1.1 24.6 128.2 DAYS WITH PRECIPITATION >=10 0 4 1 0 0 0 0 0 0 0 0 1 6 DAYS WITH PRECIPITATION >= 5 1 5 1 1 0 0 0 0 0 0 0 1 9 DAYS WITH PRECIPITATION >= 1 2 8 2 2 0 0 0 0 0 0 1 2 17 DAYS WITH PRECIPITATION 3 11 2 4 10 2 0 0 0 0 2 5 39 GREATEST DAILY PRECIPITATION 5.2 23.0 10.0 6.0 0.2 0.3 0.0 0.0 0.0 0.0 1.0 23.0 23.0 DAY 26 18 12 28 12 8 ** ** ** ** 19 9 DAY WITH THUNDER STORM 0 3 3 2 3 0 0 0 0 0 1 1 13 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 12 2 14 8 7 15 21 15 3 5 2 10 114 WIND DIRECTION (PREVAILING) 225 135 225 225 360 360 360 360 360 360 360 180 360 PREVAILING WIND SPEED(KNOTS) 24.5 13.1 21.2 19.7 10.4 11.8 11.4 8.7 9.4 8.4 7.5 16.7 9.8 PREVAILING WIND PERCENT 16.2 14.7 18.5 20.8 33.9 33.3 36.3 31.5 31.7 25.8 19.6 15.7 23.6 CALMS PERCENT OF WIND 38.9 41.8 29.4 29.2 44.0 41.7 46.8 55.6 60.8 59.2 60.0 38.7 45.4 NO. OF WIND OBSERVATION 247 232 248 240 248 240 248 248 240 233 240 248 2912 VECTOR WIND DIRECTION (MEAN) 196 180 217 235 8 12 9 353 8 356 357 183 335 VECTOR WIND MAGNITUDE(KNOTS) 4.2 1.9 4.1 3.5 3.9 5.2 5.2 3.5 3.4 1.9 0.5 3.2 0.8 WIND STEADINESES (MEAN %) 41.2 23.2 39.8 36.5 61.9 78.8 86.7 83.3 94.4 50.0 13.5 41.0 11.9 WIND SPEED (MEAN KNOTS) 10.2 8.2 10.3 9.6 6.3 6.6 6.0 4.2 3.6 3.8 3.7 7.8 6.7 FASTEST WIND DIRECTION 210 230 230 210 210 340 50 290 360 310 200 220 230 FASTEST WIND SPEED (KNOTS) 55 60 40 40 30 25 35 20 25 20 30 30 60 DAY 16 3 3 25 17 24 3 1 4 13 19 5 DAYS WITH SKY CLEAR (0-2)/8 18 7 17 4 10 18 30 27 30 29 19 8 217 DAYS WITH P.CLOUDY (3-6)/8 11 11 4 14 17 12 1 4 0 2 10 20 106 DAYS WITH CLOUDY (7-8)/8 2 11 10 12 4 0 0 0 0 0 1 3 43 DAYS WITH VISIBILITY =< 2 KM 7 8 3 3 0 0 3 0 1 0 0 1 26 DURATION OF SUNSHINE HOURS 228.2 143.0 233.8 192.1 271.1 256.0 326.8 323.2 331.4 303.0 221.6 190.1 3020.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 862.8 863.8 862.3 862.5 861.6 857.4 855.4 856.9 861.7 865.7 868.1 865.2 862.0 MAX. QFE PRESSURE IN HPA 870.2 869.5 870.7 870.0 866.3 865.6 860.2 864.1 866.2 871.1 874.0 871.6 874.0 DAY-HOUR 12- 6 7- 6 27- 6 1- 6 8- 3 1- 6 20- 6 30- 6 21- 6 16- 6 24- 6 17- 6 MIN. QFE PRESSURE IN HPA 855.7 855.8 853.0 855.6 856.1 851.0 850.6 851.9 856.2 860.2 861.8 858.3 850.6 DAY-HOUR 7-12 3-12 19-12 24-12 17-15 23-12 11-12 9-12 7-12 26-12 19- 0 9-12 MEAN QNH PRESSURE IN HPA 1017.2 1018.3 1016.6 1016.8 1015.8 1011.0 1008.7 1010.4 1015.9 1020.5 1023.2 1019.9 1016.2 MAX. QNH PRESSURE IN HPA 1025.6 1024.8 1026.2 1025.4 1021.2 1020.4 1014.2 1018.6 1021.0 1026.6 1030.0 1027.2 1030.0 DAY-HOUR 12- 6 7- 6 27- 6 1- 6 8- 3 1- 6 20- 6 30- 6 21- 6 16- 6 24- 6 17- 6 MIN. QNH PRESSURE IN HPA 1009.0 1009.2 1006.0 1008.9 1009.5 1003.7 1003.2 1004.7 1009.6 1014.2 1016.0 1012.0 1003.2 DAY-HOUR 7-12 3-12 19-12 24-12 17-15 23-12 11-12 9-12 7-12 26-12 19- 0 9-12 MEAN QFF PRESSURE IN HPA 1016.4 1017.8 1011.3 1009.3 1006.7 998.4 996.2 998.3 1006.3 1013.2 1019.2 1017.8 1009.3 MAX. QFF PRESSURE IN HPA 1028.4 1031.2 1026.7 1019.8 1015.5 1010.0 1003.3 1009.1 1015.2 1022.6 1028.7 1028.9 1031.2 DAY-HOUR 20- 3 7- 3 28- 3 1- 3 8- 3 1- 6 16- 3 30- 3 20- 3 31- 3 25- 3 24- 3 MIN. QFF PRESSURE IN HPA 1003.7 1005.3 999.0 998.1 998.4 990.6 989.9 990.6 999.4 1004.5 1009.3 1006.6 989.9 DAY-HOUR 7-21 3- 9 18-12 24-21 17-15 23-12 12- 9 9-12 7-12 26-12 19- 0 5-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 862.5 863.4 861.9 862.2 861.5 857.5 855.6 857.0 861.6 865.6 867.9 865.0 861.8 MAX. QFE PRESSURE IN HPA 868.4 867.5 868.7 867.8 865.0 863.4 859.0 862.5 864.9 869.1 872.3 870.0 872.3 DAY 12 7 28 1 2 2 20 30 20 21 24 22 MIN. QFE PRESSURE IN HPA 856.1 857.7 854.3 856.3 858.5 852.7 852.0 854.0 857.4 861.3 861.8 859.2 852.0 DAY 23 3 19 25 30 24 12 10 8 26 19 28 MEAN QNH PRESSURE IN HPA 1016.8 1017.8 1016.2 1016.5 1015.7 1011.2 1008.9 1010.5 1015.8 1020.3 1023.0 1019.7 1016.0 MAX. QNH PRESSURE IN HPA 1023.6 1022.5 1023.9 1022.9 1019.7 1017.8 1012.8 1016.8 1019.6 1024.4 1028.0 1025.4 1028.0 DAY 12 7 28 1 2 2 20 30 20 21 24 22 MIN. QNH PRESSURE IN HPA 1009.5 1011.3 1007.4 1009.7 1012.2 1005.6 1004.8 1007.1 1011.0 1015.4 1016.0 1013.0 1004.8 DAY 23 3 19 25 30 24 12 10 8 26 19 28 MEAN QFF PRESSURE IN HPA 1015.7 1017.0 1010.6 1009.0 1006.8 998.8 996.7 998.5 1006.4 1012.9 1018.9 1017.1 1009.0 MAX. QFF PRESSURE IN HPA 1026.2 1027.8 1023.7 1016.8 1013.5 1007.1 1001.9 1007.3 1012.7 1019.2 1025.8 1027.0 1027.8 DAY 20 8 27 1 2 1 15 31 20 31 24 24 MIN. QFF PRESSURE IN HPA 1006.8 1008.1 999.8 998.9 1001.6 992.0 991.1 993.2 1001.2 1006.3 1009.3 1007.1 991.1 DAY 23 4 19 25 30 22 12 10 8 26 19 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 863.4 864.1 862.7 863.2 862.5 858.6 856.2 857.6 862.2 866.3 868.6 865.6 862.6 MAX. QFE PRESSURE IN HPA 869.0 868.5 870.0 869.2 866.3 865.0 859.5 863.2 865.5 869.9 873.0 870.5 873.0 DAY 12 7 28 1 8 1 20 30 21 21 16 22 MIN. QFE PRESSURE IN HPA 856.7 858.1 855.1 857.8 859.4 853.6 852.8 854.8 858.1 861.7 862.1 859.4 852.8 DAY 23 3 19 29 17 23 12 11 8 26 19 28 MEAN QNH PRESSURE IN HPA 1017.8 1018.6 1017.1 1017.6 1016.8 1012.4 1009.6 1011.2 1016.5 1021.1 1023.8 1020.4 1016.9 MAX. QNH PRESSURE IN HPA 1024.2 1023.7 1025.4 1024.5 1021.2 1019.7 1013.4 1017.6 1020.2 1025.3 1028.8 1026.0 1028.8 DAY 12 7 28 1 8 1 20 30 21 21 16 22 MIN. QNH PRESSURE IN HPA 1010.2 1011.8 1008.4 1011.4 1013.3 1006.6 1005.7 1008.0 1011.8 1015.9 1016.4 1013.3 1005.7 DAY 23 3 19 29 17 23 12 11 8 26 19 28 MEAN QFF PRESSURE IN HPA 1018.4 1019.2 1012.9 1011.0 1008.3 1000.4 998.1 1000.0 1008.4 1015.2 1021.6 1019.6 1011.1 MAX. QFF PRESSURE IN HPA 1028.4 1031.2 1026.7 1019.8 1015.5 1009.6 1003.3 1009.1 1015.2 1022.6 1028.7 1028.9 1031.2 DAY 20 7 28 1 8 1 16 30 20 31 25 24 MIN. QFF PRESSURE IN HPA 1008.5 1010.5 1002.6 1001.8 1002.3 994.0 993.8 995.6 1002.6 1007.7 1010.3 1008.8 993.8 DAY 23 3 19 25 17 22 12 10 8 26 19 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 864.5 865.3 863.7 864.0 862.9 858.7 856.4 858.0 862.9 867.1 869.6 866.8 863.3 MAX. QFE PRESSURE IN HPA 870.2 869.5 870.7 870.0 866.3 865.6 860.2 864.1 866.2 871.1 874.0 871.6 874.0 DAY 12 7 27 1 8 1 20 30 21 16 24 17 MIN. QFE PRESSURE IN HPA 858.1 858.9 856.1 858.5 859.3 853.8 853.0 854.9 858.8 862.3 863.7 860.8 853.0 DAY 23 3 19 29 30 23 12 10 7 26 19 9 MEAN QNH PRESSURE IN HPA 1019.1 1020.1 1018.2 1018.5 1017.3 1012.5 1009.9 1011.7 1017.3 1022.1 1024.9 1021.7 1017.8 MAX. QNH PRESSURE IN HPA 1025.6 1024.8 1026.2 1025.4 1021.2 1020.4 1014.2 1018.6 1021.0 1026.6 1030.0 1027.2 1030.0 DAY 12 7 27 1 8 1 20 30 21 16 24 17 MIN. QNH PRESSURE IN HPA 1011.8 1012.7 1009.5 1012.2 1013.2 1006.9 1006.0 1008.1 1012.6 1016.6 1018.2 1014.9 1006.0 DAY 23 3 19 29 30 23 12 10 7 26 19 9 MEAN QFF PRESSURE IN HPA 1018.4 1019.6 1012.8 1010.6 1008.0 999.6 997.0 999.1 1007.2 1014.5 1020.6 1019.4 1010.6 MAX. QFF PRESSURE IN HPA 1028.1 1030.6 1026.3 1019.7 1014.6 1010.0 1002.2 1008.9 1014.2 1021.9 1027.6 1027.7 1030.6 DAY 20 7 27 1 2 1 15 30 20 30 24 24 MIN. QFF PRESSURE IN HPA 1009.0 1010.5 1002.7 1001.7 1001.6 992.7 991.5 993.9 1002.4 1007.5 1012.4 1010.3 991.5 DAY 23 3 18 24 17 21 12 10 7 26 19 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 862.5 863.7 862.2 862.5 861.6 857.5 855.2 856.6 861.5 865.3 867.5 864.5 861.7 MAX. QFE PRESSURE IN HPA 868.0 867.4 869.1 868.6 865.4 863.7 858.7 862.7 864.7 869.7 872.5 869.5 872.5 DAY 12 7 27 1 8 1 20 30 21 16 24 17 MIN. QFE PRESSURE IN HPA 857.5 855.9 854.2 857.7 857.8 852.4 851.7 853.1 857.3 860.8 863.4 858.9 851.7 DAY 23 3 19 24 15 23 12 10 7 26 18 5 MEAN QNH PRESSURE IN HPA 1016.8 1018.2 1016.5 1016.8 1015.7 1011.1 1008.5 1010.0 1015.6 1020.0 1022.6 1019.1 1015.9 MAX. QNH PRESSURE IN HPA 1023.1 1022.4 1024.4 1023.8 1020.1 1018.2 1012.5 1017.0 1019.3 1025.0 1028.2 1024.8 1028.2 DAY 12 7 27 1 8 1 20 30 21 16 24 17 MIN. QNH PRESSURE IN HPA 1011.1 1009.3 1007.3 1011.3 1011.4 1005.3 1004.5 1006.1 1010.9 1014.9 1017.8 1012.7 1004.5 DAY 23 3 19 24 15 23 12 10 7 26 18 5 MEAN QFF PRESSURE IN HPA 1015.1 1016.9 1010.5 1008.7 1006.1 998.0 995.4 997.1 1005.2 1011.8 1017.5 1016.1 1008.2 MAX. QFF PRESSURE IN HPA 1024.1 1026.5 1024.0 1017.8 1012.9 1007.5 1000.1 1007.3 1011.2 1018.5 1024.8 1024.1 1026.5 DAY 20 7 27 1 8 1 16 30 21 16 24 24 MIN. QFF PRESSURE IN HPA 1007.4 1005.3 999.7 998.8 1000.2 991.1 989.9 991.8 999.8 1004.9 1011.1 1006.9 989.9 DAY 7 3 18 25 17 23 12 1 7 26 11 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 861.5 862.5 860.8 861.0 860.3 856.2 854.0 855.5 860.4 864.2 866.6 863.9 860.6 MAX. QFE PRESSURE IN HPA 867.9 866.4 867.5 866.3 864.0 862.7 857.0 861.7 863.4 868.2 871.2 868.7 871.2 DAY 12 7 28 1 8 1 20 30 21 16 24 17 MIN. QFE PRESSURE IN HPA 855.7 855.8 853.0 855.6 856.4 851.0 850.6 851.9 856.2 860.2 862.4 858.3 850.6 DAY 7 3 19 24 17 23 11 9 7 26 18 9 MEAN QNH PRESSURE IN HPA 1015.7 1016.8 1014.9 1015.1 1014.4 1009.6 1007.1 1008.8 1014.4 1018.8 1021.5 1018.4 1014.6 MAX. QNH PRESSURE IN HPA 1023.0 1021.3 1022.5 1021.2 1018.5 1017.0 1010.5 1015.9 1017.8 1023.3 1026.8 1023.9 1026.8 DAY 12 7 28 1 8 1 20 30 21 16 24 17 MIN. QNH PRESSURE IN HPA 1009.0 1009.2 1006.0 1008.9 1009.8 1003.7 1003.2 1004.7 1009.6 1014.2 1016.7 1012.0 1003.2 DAY 7 3 19 24 17 23 11 9 7 26 18 9 MEAN QFF PRESSURE IN HPA 1014.4 1015.9 1009.2 1007.6 1005.4 997.0 994.8 996.6 1004.8 1011.3 1017.2 1015.8 1007.5 MAX. QFF PRESSURE IN HPA 1022.8 1026.0 1022.2 1015.5 1012.6 1006.4 999.8 1006.3 1010.0 1018.1 1024.5 1024.1 1026.0 DAY 20 7 27 1 8 1 15 30 20 30 24 23 MIN. QFF PRESSURE IN HPA 1004.1 1005.9 999.0 998.5 999.0 990.6 990.0 990.6 999.4 1004.5 1011.3 1006.6 990.0 DAY 7 3 18 24 17 23 11 9 7 26 18 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 862.3 863.3 861.6 861.6 860.6 856.3 854.3 855.9 860.9 864.9 867.5 864.9 861.2 MAX. QFE PRESSURE IN HPA 868.8 867.4 868.2 867.4 864.0 863.3 857.0 862.0 864.1 869.0 872.0 869.7 872.0 DAY 12 7 28 1 8 1 15 30 21 16 24 21 MIN. QFE PRESSURE IN HPA 855.7 856.3 854.2 856.2 856.1 851.0 850.9 852.8 857.0 860.9 862.9 859.0 850.9 DAY 7 3 19 23 17 23 10 9 7 26 18 9 MEAN QNH PRESSURE IN HPA 1016.6 1017.7 1015.8 1015.7 1014.6 1009.7 1007.4 1009.3 1015.0 1019.6 1022.5 1019.5 1015.3 MAX. QNH PRESSURE IN HPA 1024.0 1022.4 1023.3 1022.4 1018.5 1017.7 1010.5 1016.2 1018.6 1024.2 1027.7 1025.0 1027.7 DAY 12 7 28 1 8 1 15 30 21 16 24 21 MIN. QNH PRESSURE IN HPA 1009.0 1009.7 1007.3 1009.6 1009.5 1003.7 1003.6 1005.7 1010.5 1015.0 1017.3 1012.8 1003.6 DAY 7 3 19 23 17 23 10 9 7 26 18 9 MEAN QFF PRESSURE IN HPA 1017.0 1018.1 1011.6 1009.1 1006.0 997.6 995.8 997.9 1006.7 1013.7 1020.1 1018.8 1009.4 MAX. QFF PRESSURE IN HPA 1025.3 1030.1 1024.1 1018.3 1012.6 1008.2 1001.2 1007.5 1012.8 1021.1 1028.0 1027.8 1030.1 DAY 20 7 27 1 8 1 16 30 20 30 24 23 MIN. QFF PRESSURE IN HPA 1004.2 1007.9 1001.7 1000.0 998.4 990.9 990.9 992.2 1001.1 1007.3 1011.6 1009.4 990.9 DAY 7 12 18 24 17 23 11 13 7 26 18 5 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 863.2 864.4 863.0 862.9 862.0 857.4 855.8 857.5 862.1 866.2 868.6 865.8 862.4 MAX. QFE PRESSURE IN HPA 869.3 868.4 869.7 868.2 865.3 864.4 858.7 862.8 865.2 870.7 872.9 870.0 872.9 DAY 11 6 27 1 1 1 19 29 20 16 23 17 MIN. QFE PRESSURE IN HPA 857.0 857.0 855.1 857.2 858.4 852.1 852.3 854.8 857.8 861.3 863.6 859.8 852.1 DAY 7 3 18 24 17 23 11 9 7 25 18 9 MEAN QNH PRESSURE IN HPA 1017.7 1018.9 1017.4 1017.2 1016.2 1011.0 1009.1 1011.1 1016.3 1021.0 1023.7 1020.6 1016.7 MAX. QNH PRESSURE IN HPA 1024.6 1023.6 1025.0 1023.3 1020.0 1019.0 1012.5 1017.2 1019.9 1026.2 1028.7 1025.4 1028.7 DAY 11 6 27 1 1 1 19 29 20 16 23 17 MIN. QNH PRESSURE IN HPA 1010.5 1010.5 1008.4 1010.8 1012.1 1004.9 1005.2 1008.0 1011.4 1015.4 1018.1 1013.7 1004.9 DAY 7 3 18 24 17 23 11 9 7 25 18 9 MEAN QFF PRESSURE IN HPA 1016.9 1018.4 1011.8 1009.4 1006.8 998.1 996.2 998.7 1006.3 1013.7 1019.4 1018.4 1009.5 MAX. QFF PRESSURE IN HPA 1026.5 1029.0 1025.0 1017.5 1013.7 1008.4 1001.7 1007.4 1013.0 1021.6 1026.6 1027.4 1029.0 DAY 19 7 27 1 1 1 15 29 20 30 24 31 MIN. QFF PRESSURE IN HPA 1005.3 1008.4 999.9 999.8 1000.3 991.0 991.7 993.9 1001.0 1006.3 1011.5 1009.7 991.0 DAY 7 3 18 24 17 23 11 9 7 25 18 2 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 862.9 864.2 862.8 862.8 861.9 857.4 855.7 857.5 862.1 866.2 868.3 865.4 862.3 MAX. QFE PRESSURE IN HPA 869.3 868.0 869.7 867.3 865.3 864.0 858.5 862.8 865.5 870.3 872.9 870.0 872.9 DAY 11 6 27 1 1 1 14 30 19 16 23 21 MIN. QFE PRESSURE IN HPA 856.7 857.4 854.8 856.9 858.2 852.7 852.0 854.5 857.8 861.3 863.0 859.3 852.0 DAY 22 3 18 24 29 23 11 9 7 25 18 9 MEAN QNH PRESSURE IN HPA 1017.3 1018.7 1017.2 1017.1 1016.1 1011.0 1009.1 1011.2 1016.3 1021.0 1023.4 1020.1 1016.5 MAX. QNH PRESSURE IN HPA 1024.6 1023.1 1025.0 1022.3 1020.0 1018.5 1012.2 1017.2 1020.2 1025.7 1028.7 1025.4 1028.7 DAY 11 6 27 1 1 1 14 30 19 16 23 21 MIN. QNH PRESSURE IN HPA 1010.2 1011.0 1008.0 1010.4 1011.9 1005.6 1004.8 1007.7 1011.4 1015.4 1017.4 1013.2 1004.8 DAY 22 3 18 24 29 23 11 9 7 25 18 9 MEAN QFF PRESSURE IN HPA 1015.6 1017.5 1011.1 1009.1 1006.4 997.9 996.0 998.5 1006.1 1013.0 1018.5 1017.4 1008.9 MAX. QFF PRESSURE IN HPA 1026.3 1027.6 1024.8 1016.2 1012.9 1007.7 1001.0 1007.3 1012.3 1019.6 1025.3 1026.4 1027.6 DAY 19 6 27 1 1 1 14 30 19 16 23 23 MIN. QFF PRESSURE IN HPA 1003.7 1007.1 999.2 998.1 1000.9 991.0 991.0 993.6 1000.5 1006.1 1010.4 1008.8 991.0 DAY 7 3 18 24 29 23 11 13 7 25 18 2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.5 7.3 19.0 20.1 24.1 27.9 29.3 26.3 21.9 20.0 9.6 10.4 18.5 MINIMUN AIR TEMPERATURE (C) 0.3 1.2 11.7 12.5 15.0 18.0 20.0 16.3 11.6 10.8 2.4 2.8 10.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 7 10 2 0 0 0 0 19 DAYS WITH MINIMUM TEMP. <=-4 6 5 0 0 0 0 0 0 0 0 1 0 12 DAYS WITH FREEZING MIN.<= 0 17 14 0 0 0 0 0 0 0 0 15 9 55 TEMPERATURE RECORDS LOWEST(C) -12.0 -7.0 5.0 7.0 9.0 11.0 16.0 13.0 4.0 7.0 -5.0 -3.0 -12.0 DAY 2 5 25 15 14 4 29 25 16 4 22 11 MAXIMUM AIR TEMPERATURE (C) 14.0 14.4 26.5 27.4 32.2 36.3 37.3 35.0 31.5 29.5 18.5 19.8 26.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 2 9 22 29 31 31 25 14 0 0 163 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 22.0 31.0 33.0 39.0 42.0 41.0 40.0 35.0 33.0 26.0 24.0 42.0 DAY 23 28 31 2 20 25 5 8 11 8 3 5 DIF. BETWEEN (MAX.-MIN.) (C) 13.7 13.2 14.8 14.9 17.2 18.3 17.3 18.7 19.9 18.7 16.1 17.0 16.7 MEAN DAILY TEMP. (MDT) (C) 7.1 7.8 19.1 19.9 23.6 27.1 28.7 25.6 21.5 20.1 10.5 11.3 18.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 10.5 24.0 90.0 184.5 237.5 144.0 38.0 3.5 0.0 0.0 732.0 HEATING DEG. DAYS(BASE 18 0C) 336.5 286.5 22.5 17.0 0.5 0.0 0.0 0.0 7.0 0.5 226.0 207.5 1104.0 DEWPOINT (MEAN C) -0.8 -1.4 3.2 2.1 4.4 4.6 7.6 2.9 2.3 3.0 -0.7 -2.0 2.1 MIXING RATIO (G/KG) 4.36 4.22 5.67 5.35 6.36 6.34 7.87 5.66 5.40 5.60 4.66 3.90 5.45 VAPOUR PRESSURE (HPA) 6.01 5.83 7.80 7.35 8.71 8.65 10.68 7.73 7.42 7.71 6.43 5.40 7.48 SATURATION DEF. (HPA) 4.64 5.22 15.36 17.38 23.26 31.36 31.87 28.39 20.90 17.13 6.62 8.15 17.52 RELATIVE HUMIDITY (MEAN %) 64 59 38 34 31 24 27 24 29 35 53 45 39 RELATIVE HUMIDITY (MAX. %) 85 81 55 52 50 36 39 36 43 49 76 63 55 RELATIVE HUMIDITY (MIN. %) 43 38 23 20 18 15 19 15 19 21 31 25 24 RELATIVE HUMIDITY (MEAN% 03UTC) 77 77 49 46 39 32 34 32 40 45 66 62 50 RELATIVE HUMIDITY (MEAN% 09UTC) 47 42 24 23 20 16 19 16 20 22 34 28 26 RELATIVE HUMIDITY (MEAN% 15UTC) 60 56 33 27 25 19 22 19 25 32 49 42 34 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 17.4 50.9 4.0 21.1 6.2 0.4 0.0 0.0 0.0 0.2 42.4 0.0 142.6 DAYS WITH PRECIPITATION >=10 0 2 0 1 0 0 0 0 0 0 1 0 4 DAYS WITH PRECIPITATION >= 5 1 2 0 1 0 0 0 0 0 0 1 0 5 DAYS WITH PRECIPITATION >= 1 6 3 1 2 2 0 0 0 0 0 1 0 15 DAYS WITH PRECIPITATION 7 5 1 3 4 1 1 0 0 3 2 0 27 GREATEST DAILY PRECIPITATION 5.0 32.0 4.0 20.0 4.0 0.4 0.0 0.0 0.0 0.2 42.0 0.0 42.0 DAY 8 15 17 14 9 1 ** ** ** 19 8 ** DAY WITH THUNDER STORM 0 1 2 1 0 0 0 0 0 0 2 0 6 DAYS WITH SNOW OR SLEET 2 2 0 0 0 0 0 0 0 0 0 0 4 DAYS WITH DUST 7 5 16 16 10 13 16 8 3 5 0 3 102 WIND DIRECTION (PREVAILING) 135 360 180 225 360 360 360 360 360 360 360 180 360 PREVAILING WIND SPEED(KNOTS) 14.1 10.2 16.5 23.3 12.2 12.5 12.1 11.3 10.4 10.4 9.3 15.1 11.1 PREVAILING WIND PERCENT 11.3 15.6 23.8 20.1 31.9 32.5 46.4 42.7 38.8 24.6 12.9 11.7 24.6 CALMS PERCENT OF WIND 38.3 51.8 27.8 25.1 33.9 39.6 38.3 39.5 52.9 51.6 67.5 55.2 43.4 NO. OF WIND OBSERVATION 248 224 248 239 248 240 248 248 240 248 240 248 2919 VECTOR WIND DIRECTION (MEAN) 181 233 205 217 346 343 4 351 355 331 338 175 321 VECTOR WIND MAGNITUDE(KNOTS) 3.6 0.5 5.1 4.7 3.6 4.5 6.3 5.7 4.4 1.3 1.2 2.5 1.2 WIND STEADINESES (MEAN %) 39.6 8.2 50.0 39.2 45.6 60.8 87.5 82.6 91.7 24.1 37.5 43.1 16.7 WIND SPEED (MEAN KNOTS) 9.1 6.1 10.2 12.0 7.9 7.4 7.2 6.9 4.8 5.4 3.2 5.8 7.2 FASTEST WIND DIRECTION 210 210 220 210 110 190 330 300 360 180 190 210 220 FASTEST WIND SPEED (KNOTS) 50 30 65 65 26 30 22 25 22 22 24 30 65 DAY 25 9 24 18 1 17 7 12 12 29 4 31 DAYS WITH SKY CLEAR (0-2)/8 12 9 7 6 10 23 24 27 29 20 21 15 203 DAYS WITH P.CLOUDY (3-6)/8 6 10 17 15 20 7 6 4 1 10 6 14 116 DAYS WITH CLOUDY (7-8)/8 13 9 7 9 1 0 1 0 0 1 3 2 46 DAYS WITH VISIBILITY =< 2 KM 4 6 3 4 2 0 2 0 1 0 0 4 26 DURATION OF SUNSHINE HOURS 183.5 183.1 241.9 237.4 294.4 274.1 314.5 339.5 312.6 292.3 249.3 256.9 3179.5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 864.4 864.6 863.1 862.6 861.0 857.8 855.3 858.2 862.3 865.4 867.1 866.8 862.4 MAX. QFE PRESSURE IN HPA 871.1 871.7 868.7 866.7 866.3 864.1 859.0 864.8 868.4 869.2 874.7 872.1 874.7 DAY-HOUR 9- 6 4- 6 3- 6 25- 6 22- 3 3- 6 14- 6 29- 6 14- 6 26- 6 24- 6 22- 6 MIN. QFE PRESSURE IN HPA 853.7 858.3 857.3 855.8 854.0 853.4 851.4 851.5 856.2 859.6 860.4 860.3 851.4 DAY-HOUR 25- 9 14-12 24- 6 13-21 2-12 23-12 22-15 7-12 7-12 28-12 9-12 14-12 MEAN QNH PRESSURE IN HPA 1019.0 1019.2 1017.6 1016.9 1015.1 1011.4 1008.6 1011.9 1016.6 1020.1 1022.1 1021.7 1016.7 MAX. QNH PRESSURE IN HPA 1026.6 1027.3 1023.9 1021.6 1021.2 1018.6 1012.8 1019.4 1023.6 1024.5 1030.8 1027.8 1030.8 DAY-HOUR 9- 6 4- 6 3- 6 25- 6 22- 3 3- 6 14- 6 29- 6 14- 6 26- 6 24- 6 22- 6 MIN. QNH PRESSURE IN HPA 1006.8 1012.0 1010.9 1009.2 1007.1 1006.4 1004.1 1004.2 1009.6 1013.5 1014.4 1014.3 1004.1 DAY-HOUR 25- 9 14-12 24- 6 13-21 2-12 23-12 22-15 7-12 7-12 28-12 9-12 14-12 MEAN QFF PRESSURE IN HPA 1018.7 1018.4 1009.9 1008.7 1004.7 999.0 995.3 1000.4 1007.4 1012.0 1019.9 1019.1 1009.5 MAX. QFF PRESSURE IN HPA 1030.6 1031.3 1019.3 1015.6 1012.6 1010.5 1000.0 1009.3 1019.0 1017.1 1032.1 1028.2 1032.1 DAY-HOUR 1-15 4- 3 3- 6 15- 6 22- 3 3- 3 14- 6 29- 3 14- 3 15- 3 24- 3 11- 3 MIN. QFF PRESSURE IN HPA 999.7 1007.3 1000.5 996.9 996.9 992.5 990.0 990.9 999.4 1004.4 1008.1 1008.8 990.0 DAY-HOUR 25- 9 22-12 24- 6 13-21 31-12 16-12 23- 0 7-12 12- 9 29-12 9-12 15- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 864.2 864.2 862.9 862.1 860.9 857.9 855.4 858.2 862.3 865.3 867.0 866.6 862.2 MAX. QFE PRESSURE IN HPA 869.0 870.5 866.5 865.2 865.4 863.2 857.5 862.7 867.2 868.0 872.3 870.2 872.3 DAY 9 4 3 23 18 3 14 29 14 10 24 23 MIN. QFE PRESSURE IN HPA 855.8 858.8 859.1 856.0 856.6 854.4 852.5 852.9 857.3 860.7 862.3 860.6 852.5 DAY 31 15 21 14 2 17 18 7 12 29 10 15 MEAN QNH PRESSURE IN HPA 1018.8 1018.8 1017.3 1016.4 1015.0 1011.5 1008.7 1011.9 1016.6 1020.0 1021.9 1021.5 1016.5 MAX. QNH PRESSURE IN HPA 1024.2 1026.0 1021.4 1019.9 1020.1 1017.6 1011.1 1017.0 1022.2 1023.1 1028.0 1025.6 1028.0 DAY 9 4 3 23 18 3 14 29 14 10 24 23 MIN. QNH PRESSURE IN HPA 1009.2 1012.6 1012.9 1009.4 1010.1 1007.6 1005.4 1005.8 1010.9 1014.8 1016.6 1014.6 1005.4 DAY 31 15 21 14 2 17 18 7 12 29 10 15 MEAN QFF PRESSURE IN HPA 1017.9 1017.8 1009.6 1008.1 1004.9 999.5 995.6 1000.5 1007.5 1011.8 1019.4 1018.3 1009.2 MAX. QFF PRESSURE IN HPA 1026.8 1029.5 1015.4 1013.5 1010.3 1009.1 998.7 1006.5 1015.4 1015.0 1028.1 1024.4 1029.5 DAY 13 4 3 29 18 3 15 31 14 6 24 11 MIN. QFF PRESSURE IN HPA 1002.0 1008.8 1002.8 997.7 998.9 993.0 990.0 992.6 1000.5 1005.1 1010.0 1008.8 990.0 DAY 25 22 24 14 30 17 23 7 12 29 10 15 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 864.6 864.9 863.7 863.1 861.8 858.8 856.1 859.0 862.9 866.0 867.7 867.2 863.0 MAX. QFE PRESSURE IN HPA 869.5 871.0 867.2 865.8 866.3 863.9 858.3 864.1 868.0 868.5 873.4 870.5 873.4 DAY 10 4 3 22 22 3 14 29 14 26 24 23 MIN. QFE PRESSURE IN HPA 855.6 860.0 858.0 857.5 857.0 855.6 853.2 853.5 858.0 861.2 863.0 861.7 853.2 DAY 25 15 24 18 2 17 18 7 12 29 10 28 MEAN QNH PRESSURE IN HPA 1019.2 1019.6 1018.2 1017.5 1016.0 1012.5 1009.5 1012.8 1017.3 1020.8 1022.8 1022.2 1017.4 MAX. QNH PRESSURE IN HPA 1024.8 1026.5 1022.2 1020.6 1021.2 1018.4 1012.0 1018.6 1023.1 1023.7 1029.3 1026.0 1029.3 DAY 10 4 3 22 22 3 14 29 14 26 24 23 MIN. QNH PRESSURE IN HPA 1008.9 1014.0 1011.7 1011.1 1010.5 1008.9 1006.2 1006.5 1011.7 1015.3 1017.4 1015.9 1006.2 DAY 25 15 24 18 2 17 18 7 12 29 10 28 MEAN QFF PRESSURE IN HPA 1020.1 1020.3 1011.7 1010.1 1006.4 1000.8 996.9 1002.2 1009.4 1014.0 1022.3 1021.6 1011.3 MAX. QFF PRESSURE IN HPA 1029.8 1031.3 1018.6 1015.2 1012.6 1010.5 999.8 1009.3 1019.0 1017.1 1032.1 1028.2 1032.1 DAY 2 4 3 15 22 3 10 29 14 15 24 11 MIN. QFF PRESSURE IN HPA 1002.3 1011.2 1002.0 1001.3 999.3 994.1 992.2 993.8 1001.8 1007.1 1013.4 1012.1 992.2 DAY 25 21 24 18 20 17 23 7 12 29 10 28 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 865.8 865.9 864.6 864.0 862.2 859.0 856.4 859.4 863.6 866.7 868.7 868.3 863.7 MAX. QFE PRESSURE IN HPA 871.1 871.7 868.7 866.7 866.0 864.1 859.0 864.8 868.4 869.2 874.7 872.1 874.7 DAY 9 4 3 25 18 3 14 29 14 26 24 22 MIN. QFE PRESSURE IN HPA 855.4 860.8 857.3 859.2 856.8 856.1 853.5 854.3 858.7 862.4 863.7 863.0 853.5 DAY 25 15 24 17 2 17 18 7 12 29 9 15 MEAN QNH PRESSURE IN HPA 1020.6 1020.7 1019.3 1018.6 1016.5 1012.8 1009.9 1013.3 1018.0 1021.6 1023.9 1023.5 1018.2 MAX. QNH PRESSURE IN HPA 1026.6 1027.3 1023.9 1021.6 1020.8 1018.6 1012.8 1019.4 1023.6 1024.5 1030.8 1027.8 1030.8 DAY 9 4 3 25 18 3 14 29 14 26 24 22 MIN. QNH PRESSURE IN HPA 1008.7 1014.9 1010.9 1013.0 1010.3 1009.5 1006.5 1007.4 1012.5 1016.7 1018.2 1017.4 1006.5 DAY 25 15 24 17 2 17 18 7 12 29 9 15 MEAN QFF PRESSURE IN HPA 1020.5 1019.9 1011.5 1010.2 1005.8 1000.0 996.3 1001.3 1008.4 1013.1 1021.4 1020.8 1010.8 MAX. QFF PRESSURE IN HPA 1029.2 1030.3 1019.3 1015.6 1012.6 1009.2 1000.0 1008.6 1018.2 1015.8 1030.7 1026.9 1030.7 DAY 1 4 3 15 13 3 14 29 14 4 24 12 MIN. QFF PRESSURE IN HPA 1001.5 1010.3 1000.5 1003.0 998.1 994.8 992.2 993.7 1001.5 1007.6 1011.4 1013.0 992.2 DAY 25 22 24 13 20 17 18 8 12 29 10 15 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 864.0 864.5 863.2 862.7 860.9 857.8 855.4 858.1 862.1 865.1 866.7 866.4 862.2 MAX. QFE PRESSURE IN HPA 869.1 870.0 867.5 865.4 864.4 863.2 857.1 863.4 866.4 867.8 872.8 870.0 872.8 DAY 9 3 3 22 18 3 14 29 14 10 24 18 MIN. QFE PRESSURE IN HPA 853.7 859.4 857.5 857.7 855.0 854.6 852.8 853.1 857.2 860.8 861.8 862.0 852.8 DAY 25 14 24 17 2 23 18 7 12 29 9 14 MEAN QNH PRESSURE IN HPA 1018.5 1019.1 1017.6 1017.1 1015.0 1011.4 1008.7 1011.8 1016.3 1019.8 1021.6 1021.3 1016.5 MAX. QNH PRESSURE IN HPA 1024.4 1025.4 1022.5 1020.1 1019.0 1017.6 1010.6 1017.8 1021.3 1022.9 1028.6 1025.4 1028.6 DAY 9 3 3 22 18 3 14 29 14 10 24 18 MIN. QNH PRESSURE IN HPA 1006.8 1013.3 1011.1 1011.3 1008.2 1007.8 1005.7 1006.1 1010.8 1014.9 1016.0 1016.2 1005.7 DAY 25 14 24 17 2 23 18 7 12 29 9 14 MEAN QFF PRESSURE IN HPA 1017.4 1017.4 1009.4 1008.3 1004.1 998.4 994.7 999.5 1006.3 1010.8 1018.4 1017.7 1008.5 MAX. QFF PRESSURE IN HPA 1025.3 1027.4 1016.5 1014.3 1010.3 1007.5 997.5 1007.0 1014.7 1013.7 1027.6 1023.3 1027.6 DAY 12 3 25 15 13 3 14 29 14 6 24 12 MIN. QFF PRESSURE IN HPA 999.7 1007.7 1001.1 1002.7 997.6 993.2 991.1 991.5 999.4 1005.5 1009.7 1011.2 991.1 DAY 25 22 24 13 20 17 18 8 12 29 9 28 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 863.1 863.3 861.6 861.3 859.6 856.4 854.2 856.8 860.8 864.0 865.6 865.3 861.0 MAX. QFE PRESSURE IN HPA 869.4 868.3 865.7 863.6 863.5 862.2 856.0 861.8 864.8 866.8 871.5 868.9 871.5 DAY 9 3 3 22 16 3 1 28 14 10 24 22 MIN. QFE PRESSURE IN HPA 854.5 858.3 858.2 856.6 854.0 853.4 851.7 851.5 856.2 859.6 860.4 860.3 851.5 DAY 25 14 21 17 2 23 22 7 7 28 9 14 MEAN QNH PRESSURE IN HPA 1017.6 1017.7 1015.8 1015.5 1013.4 1009.9 1007.3 1010.3 1014.9 1018.5 1020.4 1020.0 1015.1 MAX. QNH PRESSURE IN HPA 1024.7 1023.4 1020.5 1018.1 1018.0 1016.5 1009.4 1016.0 1019.4 1021.7 1027.1 1024.1 1027.1 DAY 9 3 3 22 16 3 1 28 14 10 24 22 MIN. QNH PRESSURE IN HPA 1007.7 1012.0 1011.9 1010.1 1007.1 1006.4 1004.5 1004.2 1009.6 1013.5 1014.4 1014.3 1004.2 DAY 25 14 21 17 2 23 22 7 7 28 9 14 MEAN QFF PRESSURE IN HPA 1016.6 1016.4 1008.0 1007.2 1003.1 997.6 994.1 998.8 1005.6 1010.2 1017.7 1016.7 1007.7 MAX. QFF PRESSURE IN HPA 1026.6 1026.0 1015.1 1012.0 1009.2 1007.6 996.8 1006.0 1013.1 1013.6 1026.7 1022.9 1026.7 DAY 9 4 3 15 18 3 1 28 14 10 24 12 MIN. QFF PRESSURE IN HPA 1002.3 1007.3 1002.3 1001.5 996.9 992.5 990.2 990.9 999.5 1004.4 1008.1 1009.5 990.2 DAY 25 22 21 13 31 16 24 7 7 29 9 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 864.0 864.1 862.4 861.9 860.0 856.7 854.4 857.2 861.4 864.9 866.6 866.3 861.6 MAX. QFE PRESSURE IN HPA 869.9 869.4 866.8 864.4 863.6 862.2 856.2 862.0 865.2 867.6 872.3 869.8 872.3 DAY 9 3 3 24 10 3 1 31 13 5 24 22 MIN. QFE PRESSURE IN HPA 855.0 859.0 858.5 856.7 854.8 853.6 851.4 851.7 857.2 860.5 861.5 861.0 851.4 DAY 25 14 21 17 2 23 22 7 11 28 9 14 MEAN QNH PRESSURE IN HPA 1018.6 1018.7 1016.7 1016.1 1013.9 1010.1 1007.5 1010.7 1015.6 1019.5 1021.5 1021.2 1015.8 MAX. QNH PRESSURE IN HPA 1025.3 1024.7 1021.7 1019.0 1018.1 1016.5 1009.6 1016.2 1019.9 1022.6 1028.0 1025.2 1028.0 DAY 9 3 3 24 10 3 1 31 13 5 24 22 MIN. QNH PRESSURE IN HPA 1008.2 1012.8 1012.2 1010.2 1008.0 1006.6 1004.1 1004.5 1010.8 1014.5 1015.7 1015.1 1004.1 DAY 25 14 21 17 2 23 22 7 11 28 9 14 MEAN QFF PRESSURE IN HPA 1019.3 1019.1 1010.0 1008.8 1004.3 998.4 994.8 1000.1 1007.6 1012.7 1021.0 1020.4 1009.7 MAX. QFF PRESSURE IN HPA 1030.6 1028.0 1018.2 1013.9 1010.4 1007.9 997.5 1006.8 1015.7 1016.1 1030.0 1027.2 1030.6 DAY 1 3 3 15 12 3 31 28 14 4 24 12 MIN. QFF PRESSURE IN HPA 1002.6 1009.6 1003.1 1001.5 997.5 992.9 990.3 991.7 1001.6 1006.5 1011.9 1012.6 990.3 DAY 25 22 21 13 31 16 22 7 11 29 9 31 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 865.0 865.1 863.5 863.0 861.3 857.9 855.6 858.7 862.7 865.8 867.5 867.3 862.8 MAX. QFE PRESSURE IN HPA 870.9 870.7 868.0 865.7 865.6 863.4 857.9 863.5 867.4 868.2 872.9 870.5 872.9 DAY 9 3 3 28 17 2 31 31 13 5 23 22 MIN. QFE PRESSURE IN HPA 856.8 859.8 859.2 857.7 857.0 854.8 852.9 853.6 858.1 861.5 862.8 862.0 852.9 DAY 30 14 21 17 2 22 17 7 11 28 9 27 MEAN QNH PRESSURE IN HPA 1019.7 1019.8 1018.0 1017.4 1015.5 1011.6 1008.9 1012.5 1017.0 1020.6 1022.5 1022.3 1017.1 MAX. QNH PRESSURE IN HPA 1026.4 1026.2 1023.1 1020.5 1020.4 1017.8 1011.6 1018.0 1022.4 1023.3 1028.7 1026.0 1028.7 DAY 9 3 3 28 17 2 31 31 13 5 23 22 MIN. QNH PRESSURE IN HPA 1010.3 1013.7 1013.0 1011.3 1010.5 1008.0 1005.8 1006.6 1011.8 1015.7 1017.2 1016.2 1005.8 DAY 30 14 21 17 2 22 17 7 11 28 9 27 MEAN QFF PRESSURE IN HPA 1019.5 1018.9 1010.2 1009.0 1004.7 998.8 995.3 1000.5 1007.5 1012.3 1020.1 1019.5 1009.7 MAX. QFF PRESSURE IN HPA 1029.1 1029.3 1018.4 1014.0 1011.7 1008.7 998.4 1007.2 1016.3 1015.6 1028.6 1025.4 1029.3 DAY 1 3 3 28 12 2 31 31 14 31 23 12 MIN. QFF PRESSURE IN HPA 1006.4 1009.9 1002.6 1001.3 997.2 993.3 991.5 992.7 1000.7 1006.7 1010.6 1011.1 991.5 DAY 30 22 21 13 20 16 22 7 11 29 9 27 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 864.7 864.8 863.3 862.6 861.2 857.9 855.5 858.6 862.5 865.6 867.2 866.9 862.6 MAX. QFE PRESSURE IN HPA 870.0 870.7 868.0 866.2 865.6 863.6 857.3 863.5 867.2 868.2 872.6 870.5 872.6 DAY 9 3 3 28 17 2 31 31 13 5 23 22 MIN. QFE PRESSURE IN HPA 856.8 859.3 859.3 855.8 857.0 854.7 852.6 853.3 857.8 861.4 862.4 861.4 852.6 DAY 30 14 23 13 29 23 22 6 11 29 9 14 MEAN QNH PRESSURE IN HPA 1019.3 1019.5 1017.7 1016.9 1015.3 1011.5 1008.8 1012.3 1016.8 1020.4 1022.2 1021.9 1016.9 MAX. QNH PRESSURE IN HPA 1025.4 1026.2 1023.1 1021.0 1020.4 1018.1 1010.9 1018.0 1022.2 1023.3 1028.4 1026.0 1028.4 DAY 9 3 3 28 17 2 31 31 13 5 23 22 MIN. QNH PRESSURE IN HPA 1010.3 1013.2 1013.2 1009.2 1010.5 1007.9 1005.5 1006.3 1011.4 1015.6 1016.7 1015.6 1005.5 DAY 30 14 23 13 29 23 22 6 11 29 9 14 MEAN QFF PRESSURE IN HPA 1018.2 1017.7 1009.5 1008.2 1004.4 998.6 995.0 1000.0 1007.0 1011.6 1019.0 1018.3 1008.9 MAX. QFF PRESSURE IN HPA 1026.8 1029.0 1016.6 1013.6 1011.0 1008.8 998.3 1006.6 1014.9 1014.7 1027.6 1023.9 1029.0 DAY 12 3 3 28 12 2 14 31 13 31 23 12 MIN. QFF PRESSURE IN HPA 1005.8 1008.3 1002.3 996.9 997.3 992.8 990.1 992.3 1000.1 1006.2 1009.6 1010.3 990.1 DAY 30 22 23 13 20 16 22 6 11 29 9 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.8 10.5 12.4 20.9 26.1 28.4 28.8 29.1 22.4 18.2 12.6 7.7 18.7 MINIMUN AIR TEMPERATURE (C) 1.5 3.7 5.9 12.6 16.6 19.0 19.5 19.5 13.0 8.7 1.9 -0.5 10.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 1 1 10 10 10 0 0 0 0 32 DAYS WITH MINIMUM TEMP. <=-4 2 0 0 0 0 0 0 0 0 0 0 10 12 DAYS WITH FREEZING MIN.<= 0 17 4 1 0 0 0 0 0 0 0 6 19 47 TEMPERATURE RECORDS LOWEST(C) -5.0 -3.0 -1.0 7.0 12.0 13.0 13.0 14.0 7.0 2.0 -2.0 -10.0 -10.0 DAY 30 1 14 1 11 7 14 14 23 28 16 17 MAXIMUM AIR TEMPERATURE (C) 14.1 19.0 19.6 29.5 34.6 36.9 36.7 37.2 32.1 28.6 24.8 17.8 27.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 17 30 30 31 31 21 19 1 0 181 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.0 23.0 31.0 35.0 40.0 41.0 42.0 41.0 38.0 34.0 30.0 27.0 42.0 DAY 1 19 23 19 18 21 1 7 7 1 4 13 DIF. BETWEEN (MAX.-MIN.) (C) 12.6 15.3 13.7 16.9 18.0 17.9 17.2 17.7 19.1 19.9 22.9 18.3 17.5 MEAN DAILY TEMP. (MDT) (C) 7.8 11.3 12.7 21.1 25.6 28.0 28.1 28.4 22.5 18.7 13.3 8.6 18.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 1.5 30.5 143.0 209.0 220.5 228.0 75.5 10.0 0.0 0.0 918.0 HEATING DEG. DAYS(BASE 18 0C) 316.5 186.5 173.5 3.5 0.0 0.0 0.0 0.0 2.5 37.5 140.5 291.0 1151.5 DEWPOINT (MEAN C) 0.3 -0.4 2.9 4.6 4.5 4.9 5.7 5.8 2.2 1.1 -5.2 -5.1 1.8 MIXING RATIO (G/KG) 4.66 4.42 5.60 6.35 6.33 6.70 6.97 7.22 5.40 5.09 3.10 3.22 5.42 VAPOUR PRESSURE (HPA) 6.42 6.10 7.69 8.72 8.66 9.12 9.47 9.79 7.40 7.01 4.30 4.46 7.43 SATURATION DEF. (HPA) 3.93 7.37 7.77 17.46 27.31 32.17 31.98 32.59 21.89 16.15 12.19 7.47 18.19 RELATIVE HUMIDITY (MEAN %) 66 51 58 37 27 24 25 26 28 34 32 44 38 RELATIVE HUMIDITY (MAX. %) 85 77 81 53 42 35 37 40 42 49 51 64 55 RELATIVE HUMIDITY (MIN. %) 45 26 36 22 17 16 16 15 17 20 16 23 22 RELATIVE HUMIDITY (MEAN% 03UTC) 80 73 73 48 35 30 33 35 37 46 44 58 49 RELATIVE HUMIDITY (MEAN% 09UTC) 50 30 38 24 17 16 18 16 18 21 17 26 24 RELATIVE HUMIDITY (MEAN% 15UTC) 64 43 54 34 23 20 21 22 24 30 28 39 34 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 45.1 11.0 43.0 0.0 1.0 0.0 0.0 13.0 0.0 0.0 0.0 3.0 116.1 DAYS WITH PRECIPITATION >=10 1 1 1 0 0 0 0 0 0 0 0 0 3 DAYS WITH PRECIPITATION >= 5 2 1 4 0 0 0 0 2 0 0 0 0 9 DAYS WITH PRECIPITATION >= 1 6 2 9 0 1 0 0 2 0 0 0 1 21 DAYS WITH PRECIPITATION 9 3 10 3 4 0 1 3 0 0 0 1 34 GREATEST DAILY PRECIPITATION 25.0 10.0 11.0 0.0 1.0 0.0 0.0 7.0 0.0 0.0 0.0 3.0 25.0 DAY 18 18 14 ** 3 ** ** 24 ** ** ** 3 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 1 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 1 3 5 13 5 5 2 7 4 0 0 2 47 WIND DIRECTION (PREVAILING) 180 180 360 360 360 360 360 360 360 360 360 180 360 PREVAILING WIND SPEED(KNOTS) 17.3 16.0 10.7 11.6 12.3 11.4 11.6 11.7 10.8 8.9 8.5 14.3 10.9 PREVAILING WIND PERCENT 14.5 9.4 25.0 20.0 27.0 45.2 43.5 38.7 32.9 17.7 12.9 12.9 24.5 CALMS PERCENT OF WIND 46.0 54.5 47.6 53.8 48.8 41.4 34.3 43.5 50.4 65.3 76.7 58.1 51.6 NO. OF WIND OBSERVATION 248 224 248 240 248 239 248 248 240 248 240 248 2919 VECTOR WIND DIRECTION (MEAN) 189 196 358 330 343 358 355 6 359 343 2 185 353 VECTOR WIND MAGNITUDE(KNOTS) 1.7 1.2 1.3 0.7 3.0 5.3 6.1 4.8 4.4 1.4 1.1 1.8 1.9 WIND STEADINESES (MEAN %) 25.0 20.3 21.3 11.7 47.6 79.1 82.4 75.0 88.0 42.4 52.4 34.0 33.9 WIND SPEED (MEAN KNOTS) 6.8 5.9 6.1 6.0 6.3 6.7 7.4 6.4 5.0 3.3 2.1 5.3 5.6 FASTEST WIND DIRECTION 180 180 210 200 210 350 360 360 10 210 120 210 210 FASTEST WIND SPEED (KNOTS) 30 25 25 30 25 25 30 30 20 25 18 40 40 DAY 1 23 24 20 7 4 12 11 25 9 4 15 DAYS WITH SKY CLEAR (0-2)/8 13 16 7 12 23 26 23 19 27 29 27 20 242 DAYS WITH P.CLOUDY (3-6)/8 12 9 12 14 8 4 6 11 3 2 3 11 95 DAYS WITH CLOUDY (7-8)/8 6 3 12 4 0 0 2 1 0 0 0 0 28 DAYS WITH VISIBILITY =< 2 KM 4 1 2 1 0 1 0 1 0 0 0 0 10 DURATION OF SUNSHINE HOURS 205.7 234.6 218.5 269.9 331.6 324.6 303.1 298.7 296.1 304.2 283.9 260.0 3330.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 864.6 864.3 863.1 863.7 860.3 857.2 855.2 855.6 859.8 864.7 867.5 866.3 861.8 MAX. QFE PRESSURE IN HPA 873.9 871.4 868.0 867.8 866.4 861.1 860.0 858.7 866.4 871.0 874.0 875.0 875.0 DAY-HOUR 3- 6 4- 6 26- 6 7- 6 23- 6 16- 6 9- 3 30- 3 22- 6 30- 6 15- 6 31- 6 MIN. QFE PRESSURE IN HPA 855.4 855.3 857.1 858.9 855.5 852.6 850.6 852.0 853.7 857.7 860.2 857.6 850.6 DAY-HOUR 28-12 23-12 6- 0 19-12 25-12 30-15 1-15 7-12 6-12 5-15 30-12 15- 0 MEAN QNH PRESSURE IN HPA 1019.2 1018.8 1017.5 1018.2 1014.3 1010.8 1008.5 1008.9 1013.7 1019.3 1022.6 1021.2 1016.1 MAX. QNH PRESSURE IN HPA 1029.8 1027.0 1023.1 1022.9 1021.3 1015.2 1014.0 1012.5 1021.3 1026.5 1030.0 1031.1 1031.1 DAY-HOUR 3- 6 4- 6 26- 6 7- 6 23- 6 16- 6 9- 3 30- 3 22- 6 30- 6 15- 6 31- 6 MIN. QNH PRESSURE IN HPA 1008.7 1008.6 1010.6 1012.7 1008.8 1005.5 1003.2 1004.8 1006.8 1011.3 1014.2 1011.2 1003.2 DAY-HOUR 28-12 23-12 6- 0 19-12 25-12 30-15 1-15 7-12 6-12 5-15 30-12 15- 0 MEAN QFF PRESSURE IN HPA 1018.5 1016.1 1013.6 1009.5 1002.9 998.0 995.5 995.7 1004.2 1012.2 1018.8 1020.2 1008.8 MAX. QFF PRESSURE IN HPA 1029.5 1027.8 1021.8 1016.7 1011.0 1005.0 1002.4 1001.7 1014.8 1023.8 1029.3 1032.9 1032.9 DAY-HOUR 3- 6 4- 3 1- 3 28- 3 11- 3 12- 3 9- 3 15- 3 22- 6 29- 3 15- 3 31- 3 MIN. QFF PRESSURE IN HPA 1007.1 1001.5 1003.4 1001.1 995.7 991.5 987.7 990.3 994.0 1001.3 1009.8 1003.8 987.7 DAY-HOUR 28-12 23-12 24- 0 20-12 25-12 30-15 1-18 7-21 6-12 9- 0 30-12 15- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 864.1 863.8 862.7 863.4 860.2 857.3 855.2 855.6 859.6 864.5 867.5 866.0 861.7 MAX. QFE PRESSURE IN HPA 871.4 869.0 866.6 866.2 865.0 860.2 859.0 857.7 864.7 870.4 872.5 873.6 873.6 DAY 3 4 27 28 23 17 9 30 23 30 15 31 MIN. QFE PRESSURE IN HPA 858.1 855.5 857.1 859.3 856.7 854.9 852.4 852.5 855.4 859.0 864.3 857.6 852.4 DAY 23 23 6 20 30 10 16 7 1 9 25 15 MEAN QNH PRESSURE IN HPA 1018.7 1018.3 1017.0 1017.8 1014.2 1010.8 1008.5 1009.0 1013.5 1019.1 1022.5 1020.8 1015.8 MAX. QNH PRESSURE IN HPA 1027.0 1024.2 1021.5 1021.0 1019.7 1014.2 1012.8 1011.3 1019.3 1025.8 1028.2 1029.5 1029.5 DAY 3 4 27 28 23 17 9 30 23 30 15 31 MIN. QNH PRESSURE IN HPA 1011.8 1008.8 1010.6 1013.2 1010.2 1008.1 1005.3 1005.4 1008.7 1012.8 1018.9 1011.2 1005.3 DAY 23 23 6 20 30 10 16 7 1 9 25 15 MEAN QFF PRESSURE IN HPA 1017.4 1015.0 1012.9 1009.2 1003.1 998.4 995.8 996.0 1003.8 1011.8 1018.4 1019.1 1008.4 MAX. QFF PRESSURE IN HPA 1025.9 1023.7 1018.3 1015.3 1009.2 1003.5 1001.5 1000.5 1013.2 1021.3 1025.6 1029.4 1029.4 DAY 3 4 1 28 11 12 9 15 23 30 15 31 MIN. QFF PRESSURE IN HPA 1008.2 1002.5 1003.4 1001.4 998.3 994.4 990.3 991.2 996.2 1001.3 1013.6 1003.8 990.3 DAY 23 23 24 20 29 23 2 7 7 9 10 15 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 864.9 864.6 863.4 864.4 861.2 858.1 856.0 856.4 860.2 865.2 868.3 866.8 862.5 MAX. QFE PRESSURE IN HPA 872.2 870.9 867.4 867.0 865.9 860.6 860.0 858.7 865.4 870.7 873.1 874.1 874.1 DAY 3 4 26 28 23 16 9 30 23 30 15 31 MIN. QFE PRESSURE IN HPA 858.8 857.2 857.7 861.0 857.7 855.6 853.4 853.3 855.9 860.3 864.5 858.1 853.3 DAY 28 23 6 20 30 30 16 7 6 6 30 15 MEAN QNH PRESSURE IN HPA 1019.5 1019.3 1017.9 1019.0 1015.3 1011.8 1009.4 1009.9 1014.2 1019.9 1023.5 1021.8 1016.8 MAX. QNH PRESSURE IN HPA 1027.9 1026.4 1022.4 1022.0 1020.7 1014.6 1014.0 1012.5 1020.1 1026.2 1028.9 1030.1 1030.1 DAY 3 4 26 28 23 16 9 30 23 30 15 31 MIN. QNH PRESSURE IN HPA 1012.6 1010.8 1011.3 1015.1 1011.3 1008.9 1006.4 1006.3 1009.3 1014.3 1019.1 1011.8 1006.3 DAY 28 23 6 20 30 30 16 7 6 6 30 15 MEAN QFF PRESSURE IN HPA 1020.1 1017.9 1015.2 1011.5 1004.7 999.7 997.0 997.7 1006.1 1014.5 1021.8 1022.7 1010.7 MAX. QFF PRESSURE IN HPA 1029.2 1027.8 1021.8 1016.7 1011.0 1005.0 1002.4 1001.7 1014.7 1023.8 1029.3 1032.9 1032.9 DAY 3 4 1 28 11 12 9 15 23 29 15 31 MIN. QFF PRESSURE IN HPA 1010.2 1005.2 1005.9 1003.3 999.2 995.0 992.7 992.9 997.8 1004.5 1016.1 1006.5 992.7 DAY 23 23 24 20 25 23 2 7 1 9 10 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 866.1 865.6 864.4 865.1 861.6 858.3 856.2 856.7 860.9 866.1 869.0 867.7 863.2 MAX. QFE PRESSURE IN HPA 873.9 871.4 868.0 867.8 866.4 861.1 859.7 858.1 866.4 871.0 874.0 875.0 875.0 DAY 3 4 26 7 23 16 9 29 22 30 15 31 MIN. QFE PRESSURE IN HPA 859.2 859.0 858.8 861.6 857.6 855.7 853.2 853.8 856.6 860.6 864.8 859.7 853.2 DAY 28 23 6 20 25 30 16 7 3 9 30 15 MEAN QNH PRESSURE IN HPA 1021.0 1020.4 1019.0 1019.8 1015.8 1012.0 1009.7 1010.2 1015.0 1021.0 1024.2 1022.8 1017.6 MAX. QNH PRESSURE IN HPA 1029.8 1027.0 1023.1 1022.9 1021.3 1015.2 1013.6 1011.8 1021.3 1026.5 1030.0 1031.1 1031.1 DAY 3 4 26 7 23 16 9 29 22 30 15 31 MIN. QNH PRESSURE IN HPA 1013.0 1012.8 1012.6 1015.8 1011.2 1009.0 1006.2 1006.9 1010.1 1014.6 1019.4 1013.6 1006.2 DAY 28 23 6 20 25 30 16 7 3 9 30 15 MEAN QFF PRESSURE IN HPA 1020.3 1017.7 1015.1 1011.1 1004.1 999.1 996.3 996.6 1005.2 1013.5 1020.1 1021.8 1010.1 MAX. QFF PRESSURE IN HPA 1029.5 1026.8 1020.8 1015.6 1010.5 1004.5 1001.7 999.3 1014.8 1022.2 1026.9 1031.7 1031.7 DAY 3 4 1 14 10 12 9 14 22 27 15 31 MIN. QFF PRESSURE IN HPA 1010.4 1007.8 1006.5 1003.8 997.3 993.8 990.3 991.8 998.0 1003.0 1014.6 1008.2 990.3 DAY 23 23 24 20 25 30 2 7 1 9 10 15 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 864.4 864.1 863.2 863.8 860.4 857.3 855.1 855.5 859.7 864.6 867.2 865.8 861.8 MAX. QFE PRESSURE IN HPA 870.9 869.5 866.5 866.5 864.5 860.0 858.8 857.7 864.7 869.9 872.2 873.2 873.2 DAY 3 4 27 7 23 17 23 30 22 29 15 30 MIN. QFE PRESSURE IN HPA 857.5 856.6 858.7 860.6 856.7 854.8 852.0 852.9 855.0 859.4 862.2 859.7 852.0 DAY 28 23 6 19 25 30 16 7 1 8 30 15 MEAN QNH PRESSURE IN HPA 1018.9 1018.7 1017.6 1018.3 1014.4 1010.9 1008.4 1008.8 1013.6 1019.2 1022.2 1020.6 1016.0 MAX. QNH PRESSURE IN HPA 1026.4 1024.8 1021.4 1021.4 1019.1 1014.0 1012.6 1011.3 1019.3 1025.3 1027.9 1029.0 1029.0 DAY 3 4 27 7 23 17 23 30 22 29 15 30 MIN. QNH PRESSURE IN HPA 1011.1 1010.1 1012.5 1014.6 1010.2 1008.0 1004.8 1005.8 1008.2 1013.3 1016.5 1013.6 1004.8 DAY 28 23 6 19 25 30 16 7 1 8 30 15 MEAN QFF PRESSURE IN HPA 1017.4 1015.2 1012.8 1008.8 1002.6 997.6 994.9 994.9 1003.2 1011.1 1017.2 1018.4 1007.8 MAX. QFF PRESSURE IN HPA 1023.7 1023.7 1017.8 1013.5 1008.7 1002.6 1000.2 998.3 1012.2 1019.8 1024.8 1027.9 1027.9 DAY 3 4 18 28 10 15 8 14 22 29 15 31 MIN. QFF PRESSURE IN HPA 1009.0 1004.8 1004.7 1002.3 996.5 992.6 989.9 990.7 994.6 1002.6 1011.2 1008.1 989.9 DAY 23 23 24 20 25 30 2 7 1 9 30 15 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 863.4 862.9 861.8 862.3 859.0 856.1 854.0 854.3 858.3 863.0 866.0 864.8 860.5 MAX. QFE PRESSURE IN HPA 869.6 867.7 864.6 865.1 863.4 859.1 857.1 856.4 863.7 868.9 871.0 871.8 871.8 DAY 3 4 3 7 23 11 23 30 22 29 14 30 MIN. QFE PRESSURE IN HPA 855.4 855.3 857.7 858.9 855.5 853.1 851.3 852.0 853.7 857.9 860.2 858.7 851.3 DAY 28 23 5 19 25 30 1 7 6 5 30 14 MEAN QNH PRESSURE IN HPA 1017.8 1017.2 1016.1 1016.5 1012.8 1009.5 1007.1 1007.4 1012.0 1017.4 1020.9 1019.5 1014.5 MAX. QNH PRESSURE IN HPA 1024.9 1022.8 1019.2 1019.8 1017.8 1012.9 1010.6 1009.8 1018.2 1024.1 1026.5 1027.4 1027.4 DAY 3 4 3 7 23 11 23 30 22 29 14 30 MIN. QNH PRESSURE IN HPA 1008.7 1008.6 1011.3 1012.7 1008.8 1006.1 1004.0 1004.8 1006.8 1011.6 1014.2 1012.5 1004.0 DAY 28 23 5 19 25 30 1 7 6 5 30 14 MEAN QFF PRESSURE IN HPA 1016.6 1013.9 1011.8 1007.8 1001.5 996.9 994.4 994.4 1002.2 1009.9 1016.5 1017.8 1007.0 MAX. QFF PRESSURE IN HPA 1023.9 1022.5 1016.1 1013.2 1008.2 1001.5 998.8 998.9 1011.7 1019.7 1023.4 1027.2 1027.2 DAY 3 4 18 27 10 11 23 14 22 29 15 16 MIN. QFF PRESSURE IN HPA 1007.1 1001.5 1004.4 1001.1 995.7 992.2 989.7 990.4 994.0 1002.0 1009.8 1006.5 989.7 DAY 28 23 24 20 25 30 1 7 6 8 30 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 864.3 863.8 862.7 862.9 859.3 856.1 854.0 854.5 859.1 863.9 866.9 865.9 861.1 MAX. QFE PRESSURE IN HPA 870.8 867.7 865.5 865.4 863.7 859.7 857.2 856.4 864.0 870.0 872.0 872.8 872.8 DAY 2 4 26 7 10 11 23 30 22 29 14 30 MIN. QFE PRESSURE IN HPA 855.4 856.4 858.4 859.5 855.8 852.6 850.6 852.0 854.8 857.7 861.6 859.6 850.6 DAY 28 23 6 19 29 30 1 7 6 5 30 14 MEAN QNH PRESSURE IN HPA 1018.9 1018.3 1017.0 1017.3 1013.2 1009.5 1007.1 1007.7 1012.9 1018.4 1021.8 1020.7 1015.2 MAX. QNH PRESSURE IN HPA 1026.3 1022.8 1020.2 1020.1 1018.2 1013.6 1010.8 1009.8 1018.5 1025.4 1027.7 1028.6 1028.6 DAY 2 4 26 7 10 11 23 30 22 29 14 30 MIN. QNH PRESSURE IN HPA 1008.7 1009.8 1012.1 1013.4 1009.2 1005.5 1003.2 1004.8 1008.0 1011.3 1015.8 1013.5 1003.2 DAY 28 23 6 19 29 30 1 7 6 5 30 14 MEAN QFF PRESSURE IN HPA 1019.5 1016.9 1014.1 1009.5 1002.3 997.2 994.7 995.5 1004.7 1012.9 1020.1 1021.6 1009.1 MAX. QFF PRESSURE IN HPA 1028.6 1024.2 1019.1 1014.4 1009.5 1002.7 999.3 999.1 1013.0 1022.5 1027.1 1030.9 1030.9 DAY 3 4 9 27 10 12 23 14 22 29 15 16 MIN. QFF PRESSURE IN HPA 1007.5 1005.0 1006.3 1002.0 996.2 991.5 989.5 991.2 997.1 1004.4 1014.4 1009.1 989.5 DAY 28 23 23 20 29 30 1 6 6 9 30 14 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 864.9 864.8 863.6 864.1 860.4 857.4 855.5 855.9 860.3 865.0 867.8 867.0 862.2 MAX. QFE PRESSURE IN HPA 871.1 869.0 866.6 866.7 865.0 860.4 859.0 858.1 865.0 870.8 873.5 873.9 873.9 DAY 2 3 26 27 22 16 8 30 22 29 14 30 MIN. QFE PRESSURE IN HPA 858.0 857.0 859.0 860.2 857.3 853.5 851.8 852.9 856.2 859.6 862.1 859.5 851.8 DAY 28 23 6 19 25 30 1 6 1 6 30 14 MEAN QNH PRESSURE IN HPA 1019.5 1019.5 1018.1 1018.6 1014.4 1010.9 1008.8 1009.2 1014.3 1019.7 1022.9 1021.9 1016.5 MAX. QNH PRESSURE IN HPA 1026.6 1024.2 1021.5 1021.6 1019.7 1014.4 1012.8 1011.8 1019.7 1026.3 1029.4 1029.8 1029.8 DAY 2 3 26 27 22 16 8 30 22 29 14 30 MIN. QNH PRESSURE IN HPA 1011.7 1010.5 1012.8 1014.2 1010.9 1006.5 1004.6 1005.8 1009.6 1013.5 1016.4 1013.4 1004.6 DAY 28 23 6 19 25 30 1 6 1 6 30 14 MEAN QFF PRESSURE IN HPA 1019.0 1016.8 1014.0 1009.8 1002.6 998.0 995.5 995.7 1004.7 1012.3 1018.9 1021.0 1009.0 MAX. QFF PRESSURE IN HPA 1026.6 1023.4 1020.0 1015.3 1009.3 1003.9 1001.0 999.1 1012.9 1022.1 1025.1 1030.1 1030.1 DAY 3 4 9 27 10 11 8 30 22 29 14 30 MIN. QFF PRESSURE IN HPA 1009.7 1005.0 1006.0 1002.6 996.7 992.0 987.7 990.8 997.2 1001.4 1012.1 1006.7 987.7 DAY 22 23 23 19 25 30 1 7 6 8 30 14 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 864.6 864.4 863.3 863.8 860.2 857.3 855.5 855.8 860.1 865.0 867.6 866.7 862.0 MAX. QFE PRESSURE IN HPA 871.4 869.0 866.9 866.5 865.0 860.4 859.0 857.7 865.0 870.4 872.9 873.6 873.6 DAY 2 3 26 27 22 16 8 29 22 29 14 30 MIN. QFE PRESSURE IN HPA 857.6 857.0 858.2 859.9 856.9 853.5 852.7 852.5 855.7 859.2 861.8 858.9 852.5 DAY 28 23 5 19 25 30 1 6 1 8 30 14 MEAN QNH PRESSURE IN HPA 1019.2 1019.0 1017.8 1018.3 1014.2 1010.9 1008.8 1009.1 1014.1 1019.7 1022.6 1021.6 1016.3 MAX. QNH PRESSURE IN HPA 1027.0 1024.2 1021.8 1021.4 1019.7 1014.4 1012.8 1011.3 1019.7 1025.8 1028.7 1029.5 1029.5 DAY 2 3 26 27 22 16 8 29 22 29 14 30 MIN. QNH PRESSURE IN HPA 1011.2 1010.5 1011.9 1013.8 1010.4 1006.5 1005.6 1005.4 1009.0 1013.0 1016.0 1012.7 1005.4 DAY 28 23 5 19 25 30 1 6 1 8 30 14 MEAN QFF PRESSURE IN HPA 1017.8 1015.4 1013.0 1008.9 1002.3 997.7 995.4 995.3 1003.9 1011.7 1017.6 1019.5 1008.2 MAX. QFF PRESSURE IN HPA 1024.3 1022.2 1018.5 1014.9 1008.9 1003.1 1000.9 998.7 1012.4 1020.6 1023.5 1028.6 1028.6 DAY 2 3 9 27 10 11 8 14 22 29 14 30 MIN. QFF PRESSURE IN HPA 1008.8 1006.0 1004.1 1001.2 996.6 991.7 989.6 990.3 996.2 1001.3 1010.8 1005.3 989.6 DAY 23 23 23 19 25 30 1 7 1 8 30 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.1 9.7 15.0 20.8 26.1 28.9 28.7 27.0 20.8 16.1 13.1 9.6 18.3 MINIMUN AIR TEMPERATURE (C) -3.3 3.0 7.2 13.1 16.8 18.7 18.8 17.1 10.2 4.5 4.1 1.5 9.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 7 7 8 3 0 0 0 0 25 DAYS WITH MINIMUM TEMP. <=-4 13 4 0 0 0 0 0 0 0 0 0 5 22 DAYS WITH FREEZING MIN.<= 0 28 9 3 0 0 0 0 0 0 0 3 13 56 TEMPERATURE RECORDS LOWEST(C) -10.0 -14.0 -1.0 8.0 10.0 15.0 13.0 12.0 6.0 1.0 0.0 -9.0 -14.0 DAY 28 3 3 10 4 3 6 17 15 17 3 23 MAXIMUM AIR TEMPERATURE (C) 12.5 17.4 22.9 28.1 34.5 37.2 36.9 35.5 30.2 27.4 22.5 18.7 27.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 10 29 30 31 31 15 9 0 0 155 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.0 25.0 29.0 35.0 40.0 40.0 41.0 39.0 38.0 32.0 27.0 24.0 41.0 DAY 5 23 29 18 25 15 11 3 2 7 6 9 DIF. BETWEEN (MAX.-MIN.) (C) 15.8 14.4 15.7 15.0 17.7 18.5 18.1 18.4 20.0 22.9 18.4 17.2 17.7 MEAN DAILY TEMP. (MDT) (C) 4.6 10.2 15.0 20.6 25.7 27.9 27.9 26.3 20.2 16.0 13.3 10.1 18.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.5 30.5 148.0 207.5 213.0 165.0 33.0 0.0 0.0 0.0 797.5 HEATING DEG. DAYS(BASE 18 0C) 415.5 218.5 107.0 5.5 0.0 0.0 0.0 0.0 6.5 74.0 140.5 245.5 1213.0 DEWPOINT (MEAN C) -5.6 -0.9 1.7 2.7 3.9 3.1 1.1 2.3 -2.5 -5.5 -1.6 -3.5 -0.4 MIXING RATIO (G/KG) 3.05 4.32 5.28 5.65 6.18 5.76 4.94 5.52 3.81 3.04 4.10 3.58 4.60 VAPOUR PRESSURE (HPA) 4.22 5.95 7.27 7.74 8.44 7.83 6.73 7.53 5.25 4.21 5.68 4.95 6.32 SATURATION DEF. (HPA) 4.74 7.19 11.16 18.19 27.54 34.06 34.61 30.30 21.57 16.27 10.58 8.04 18.69 RELATIVE HUMIDITY (MEAN %) 54 53 45 33 26 21 18 22 23 25 39 42 33 RELATIVE HUMIDITY (MAX. %) 74 75 65 46 42 31 27 33 34 38 56 60 48 RELATIVE HUMIDITY (MIN. %) 35 32 29 21 15 13 11 13 13 13 23 25 20 RELATIVE HUMIDITY (MEAN% 03UTC) 69 71 58 43 36 29 25 30 32 33 54 56 45 RELATIVE HUMIDITY (MEAN% 09UTC) 38 35 31 22 17 14 12 14 14 14 26 28 22 RELATIVE HUMIDITY (MEAN% 15UTC) 51 43 39 30 22 17 14 17 18 20 31 37 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 13.6 26.3 7.9 0.3 8.0 0.0 0.0 0.0 0.0 0.0 3.0 0.1 59.2 DAYS WITH PRECIPITATION >=10 0 2 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH PRECIPITATION >= 5 0 3 0 0 1 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 1 5 4 2 0 3 0 0 0 0 0 1 0 15 DAYS WITH PRECIPITATION 7 7 4 1 5 0 0 0 0 0 2 1 27 GREATEST DAILY PRECIPITATION 4.0 10.0 4.0 0.3 5.0 0.0 0.0 0.0 0.0 0.0 3.0 0.1 10.0 DAY 24 2 24 13 27 ** ** ** ** ** 11 30 DAY WITH THUNDER STORM 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH SNOW OR SLEET 4 1 0 0 0 0 0 0 0 0 0 0 5 DAYS WITH DUST 1 6 14 9 1 10 10 14 5 6 0 2 78 WIND DIRECTION (PREVAILING) 360 180 180 225 360 360 360 360 360 360 180 180 360 PREVAILING WIND SPEED(KNOTS) 9.6 17.8 15.5 17.9 8.8 10.9 11.2 12.1 10.2 9.0 12.6 14.5 10.2 PREVAILING WIND PERCENT 14.5 20.5 14.1 23.3 30.0 42.5 41.9 42.7 30.8 23.4 12.5 21.0 23.3 CALMS PERCENT OF WIND 69.0 40.2 44.0 24.2 49.0 41.7 39.1 49.2 54.2 60.5 58.8 48.0 48.2 NO. OF WIND OBSERVATION 248 224 248 240 247 240 248 248 240 248 240 248 2919 VECTOR WIND DIRECTION (MEAN) 360 204 210 226 359 1 351 357 351 4 161 167 329 VECTOR WIND MAGNITUDE(KNOTS) 0.9 5.0 2.4 5.3 3.0 5.3 6.0 5.7 4.2 2.3 1.1 3.7 1.2 WIND STEADINESES (MEAN %) 25.0 57.5 36.4 50.5 63.8 86.9 88.2 95.0 89.4 62.2 25.6 59.7 20.0 WIND SPEED (MEAN KNOTS) 3.6 8.7 6.6 10.5 4.7 6.1 6.8 6.0 4.7 3.7 4.3 6.2 6.0 FASTEST WIND DIRECTION 190 210 190 230 350 360 360 360 330 360 180 190 210 FASTEST WIND SPEED (KNOTS) 35 45 25 45 20 20 25 30 20 18 20 30 45 DAY 14 8 21 14 11 25 3 21 11 12 11 20 DAYS WITH SKY CLEAR (0-2)/8 21 14 15 13 14 24 29 30 30 31 16 15 252 DAYS WITH P.CLOUDY (3-6)/8 7 10 7 14 15 6 1 1 0 0 10 15 86 DAYS WITH CLOUDY (7-8)/8 3 4 9 3 2 0 1 0 0 0 4 1 27 DAYS WITH VISIBILITY =< 2 KM 2 3 3 2 0 1 0 2 0 0 1 1 15 DURATION OF SUNSHINE HOURS 236.9 207.2 216.4 256.8 287.0 309.8 324.1 307.7 318.6 309.6 240.6 241.7 3256.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 866.0 862.2 864.6 861.7 859.8 854.8 855.0 856.6 861.9 866.0 867.5 865.2 861.8 MAX. QFE PRESSURE IN HPA 875.0 870.4 870.3 868.7 864.7 859.1 859.4 860.1 866.0 870.5 874.1 871.2 875.0 DAY-HOUR 4- 6 4- 6 17- 6 21- 6 2- 6 9- 3 6- 6 24- 6 15- 6 22- 6 21- 6 12- 6 MIN. QFE PRESSURE IN HPA 856.6 855.0 856.0 856.0 853.5 849.2 851.4 852.5 856.3 859.4 861.4 856.4 849.2 DAY-HOUR 14- 0 8-12 20-12 26- 9 11-12 5-12 21-12 9-12 2-12 1-12 5-12 20-12 MEAN QNH PRESSURE IN HPA 1020.8 1016.5 1019.2 1015.9 1013.7 1008.0 1008.2 1010.1 1016.1 1020.8 1022.5 1019.9 1016.0 MAX. QNH PRESSURE IN HPA 1031.1 1025.8 1025.7 1023.9 1019.3 1012.9 1013.3 1014.1 1020.8 1026.0 1030.1 1026.8 1031.1 DAY-HOUR 4- 6 4- 6 17- 6 21- 6 2- 6 9- 3 6- 6 24- 6 15- 6 22- 6 21- 6 12- 6 MIN. QNH PRESSURE IN HPA 1010.1 1008.2 1009.4 1009.4 1006.5 1001.6 1004.1 1005.4 1009.7 1013.3 1015.6 1009.8 1001.6 DAY-HOUR 14- 0 8-12 20-12 26- 9 11-12 5-12 21-12 9-12 2-12 1-12 5-12 20-12 MEAN QFF PRESSURE IN HPA 1021.9 1014.2 1013.9 1007.3 1002.3 995.1 995.5 998.2 1007.6 1015.0 1018.4 1017.7 1008.9 MAX. QFF PRESSURE IN HPA 1033.4 1029.4 1022.6 1016.3 1012.0 1002.2 1002.2 1002.3 1015.0 1023.6 1026.5 1026.9 1033.4 DAY-HOUR 4- 3 4- 3 4- 3 21- 6 1- 3 9- 3 6- 6 24- 3 23- 3 22- 3 21- 6 31-18 MIN. QFF PRESSURE IN HPA 1006.2 1002.2 1000.3 998.2 994.0 987.8 991.0 994.1 997.8 1006.3 1009.8 1005.2 987.8 DAY-HOUR 14- 0 8-12 21- 0 26- 9 30-12 5-21 12- 0 1-12 2-12 7-12 5-15 20- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 865.9 861.8 864.3 861.4 859.8 854.8 855.1 856.5 861.6 865.6 867.3 864.7 861.6 MAX. QFE PRESSURE IN HPA 873.3 868.2 868.4 866.2 864.4 858.6 858.2 859.0 865.0 868.8 872.7 869.5 873.3 DAY 5 5 11 21 2 2 6 21 23 23 21 12 MIN. QFE PRESSURE IN HPA 856.6 855.7 856.1 858.1 855.7 850.0 852.8 853.0 857.6 860.9 863.1 857.2 850.0 DAY 14 28 21 26 31 6 1 9 3 1 12 21 MEAN QNH PRESSURE IN HPA 1020.6 1016.1 1018.8 1015.6 1013.7 1008.1 1008.3 1010.0 1015.8 1020.3 1022.3 1019.4 1015.8 MAX. QNH PRESSURE IN HPA 1029.2 1023.3 1023.6 1021.0 1019.0 1012.4 1011.9 1012.8 1019.7 1024.0 1028.5 1024.8 1029.2 DAY 5 5 11 21 2 2 6 21 23 23 21 12 MIN. QNH PRESSURE IN HPA 1010.1 1009.0 1009.5 1011.8 1009.0 1002.5 1005.7 1006.0 1011.2 1015.0 1017.5 1010.8 1002.5 DAY 14 28 21 26 31 6 1 9 3 1 12 21 MEAN QFF PRESSURE IN HPA 1021.1 1013.6 1013.5 1007.0 1002.5 995.4 995.8 998.1 1007.3 1014.4 1018.0 1016.7 1008.6 MAX. QFF PRESSURE IN HPA 1029.5 1026.9 1020.5 1013.9 1010.8 1001.2 1002.0 1000.8 1012.3 1020.2 1024.2 1022.6 1029.5 DAY 4 3 4 10 2 9 6 16 23 23 21 12 MIN. QFF PRESSURE IN HPA 1006.2 1003.3 1000.3 1000.0 995.4 988.7 991.0 995.2 999.4 1008.2 1012.0 1006.5 988.7 DAY 14 28 21 26 31 6 12 9 3 1 6 21 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 866.5 862.6 865.1 862.3 860.9 855.7 856.0 857.4 862.5 866.6 868.2 865.6 862.4 MAX. QFE PRESSURE IN HPA 873.9 869.1 869.3 867.6 864.5 859.1 859.0 859.7 866.0 869.5 873.0 870.6 873.9 DAY 5 4 11 21 2 9 6 21 23 22 21 12 MIN. QFE PRESSURE IN HPA 858.6 856.7 857.1 858.2 857.3 851.4 853.8 853.4 859.0 862.2 864.0 859.9 851.4 DAY 14 28 21 26 26 6 23 9 2 1 12 21 MEAN QNH PRESSURE IN HPA 1021.3 1016.9 1019.8 1016.6 1015.0 1009.1 1009.4 1011.0 1016.9 1021.5 1023.3 1020.4 1016.8 MAX. QNH PRESSURE IN HPA 1029.8 1024.4 1024.6 1022.6 1019.1 1012.9 1012.8 1013.6 1020.8 1024.8 1028.8 1026.1 1029.8 DAY 5 4 11 21 2 9 6 21 23 22 21 12 MIN. QNH PRESSURE IN HPA 1012.4 1010.2 1010.6 1011.9 1010.9 1004.1 1006.9 1006.4 1012.8 1016.5 1018.5 1013.8 1004.1 DAY 14 28 21 26 26 6 23 9 2 1 12 21 MEAN QFF PRESSURE IN HPA 1024.2 1015.9 1015.6 1008.8 1004.4 996.9 997.3 999.9 1009.6 1017.2 1020.5 1019.7 1010.8 MAX. QFF PRESSURE IN HPA 1033.4 1029.4 1022.6 1015.5 1012.0 1002.2 1001.4 1002.3 1015.0 1023.6 1026.1 1026.6 1033.4 DAY 4 4 4 21 1 9 5 24 23 22 21 12 MIN. QFF PRESSURE IN HPA 1009.9 1004.7 1002.7 1000.4 997.6 989.5 994.7 996.1 1002.0 1009.9 1013.4 1011.1 989.5 DAY 14 14 21 26 30 6 12 8 3 7 6 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ZAHEDAN (40856) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 29 28 N LONGITUDE 60 53 E DATA PROCESSING CENTER ELEVATION 1370.0 M MEANS AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 867.5 863.4 865.9 863.0 861.2 855.8 856.1 857.7 863.1 867.4 869.1 866.7 863.1 MAX. QFE PRESSURE IN HPA 875.0 870.4 870.3 868.7 864.7 859.1 859.4 860.1 866.0 870.5 874.1 871.2 875.0 DAY 4 4 17 21 2 9 6 24 15 22 21 12 MIN. QFE PRESSURE IN HPA 860.0 857.4 858.4 858.3 856.7 851.2 853.8 853.4 859.4 862.4 864.7 860.0 851.2 DAY 14 28 21 26 11 6 23 9 2 1 9 20 MEAN QNH PRESSURE IN HPA 1022.5 1017.9 1020.7 1017.3 1015.3 1009.2 1009.5 1011.3 1017.5 1022.4 1024.3 1021.7 1017.5 MAX. QNH PRESSURE IN HPA 1031.1 1025.8 1025.7 1023.9 1019.3 1012.9 1013.3 1014.1 1020.8 1026.0 1030.1 1026.8 1031.1 DAY 4 4 17 21 2 9 6 24 15 22 21 12 MIN. QNH PRESSURE IN HPA 1014.0 1011.0 1012.1 1012.0 1010.2 1003.9 1006.9 1006.4 1013.3 1016.7 1019.3 1014.0 1003.9 DAY 14 28 21 26 11 6 23 9 2 1 9 20 MEAN QFF PRESSURE IN HPA 1023.7 1015.7 1015.2 1008.6 1003.7 995.9 996.5 998.9 1008.5 1016.4 1020.0 1019.4 1010.2 MAX. QFF PRESSURE IN HPA 1031.8 1029.0 1021.7 1016.3 1011.5 1001.0 1002.2 1001.9 1013.3 1021.5 1026.5 1024.7 1031.8 DAY 5 4 8 21 1 9 6 15 21 22 21 29 MIN. QFF PRESSURE IN HPA 1011.4 1005.3 1004.2 1000.8 997.0 989.6 993.6 995.3 1001.4 1008.8 1014.5 1009.5 989.6 DAY 14 28 21 26 25 6 12 9 3 7 9 20 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 865.6 862.2 864.7 861.6 859.9 854.7 855.0 856.6 861.8 866.0 867.5 864.9 861.7 MAX. QFE PRESSURE IN HPA 873.1 869.6 869.1 867.0 863.6 858.1 858.7 859.5 865.3 869.0 872.5 869.3 873.1 DAY 4 4 17 21 1 1 6 24 23 23 20 12 MIN. QFE PRESSURE IN HPA 858.3 857.1 857.5 856.0 855.7 850.6 852.6 853.0 857.7 861.1 863.3 856.7 850.6 DAY 14 8 21 26 11 6 23 9 3 1 8 20 MEAN QNH PRESSURE IN HPA 1020.4 1016.5 1019.3 1015.8 1013.9 1007.9 1008.2 1010.1 1016.1 1020.8 1022.5 1019.6 1015.9 MAX. QNH PRESSURE IN HPA 1028.9 1024.9 1024.4 1022.0 1018.1 1011.8 1012.5 1013.4 1020.0 1024.2 1028.2 1024.6 1028.9 DAY 4 4 17 21 1 1 6 24 23 23 20 12 MIN. QNH PRESSURE IN HPA 1012.0 1010.6 1011.1 1009.4 1009.0 1003.2 1005.5 1006.0 1011.3 1015.2 1017.7 1010.2 1003.2 DAY 14 8 21 26 11 6 23 9 3 1 8 20 MEAN QFF PRESSURE IN HPA 1020.4 1013.5 1013.3 1006.6 1001.9 994.4 995.0 997.5 1006.7 1014.1 1017.4 1016.3 1008.1 MAX. QFF PRESSURE IN HPA 1028.6 1027.0 1019.5 1014.3 1009.9 999.4 1001.0 1000.9 1012.6 1019.4 1023.4 1021.4 1028.6 DAY 4 4 4 21 1 9 6 15 23 22 21 12 MIN. QFF PRESSURE IN HPA 1008.1 1005.0 1002.1 998.2 995.0 988.5 991.6 995.1 998.6 1006.9 1012.3 1005.2 988.5 DAY 14 14 21 26 30 6 12 9 3 7 5 20 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 864.7 861.0 863.2 860.3 858.4 853.5 853.7 855.4 860.5 864.5 866.0 864.0 860.4 MAX. QFE PRESSURE IN HPA 872.1 869.0 867.4 865.0 862.2 857.0 856.9 857.7 863.5 868.1 871.4 868.3 872.1 DAY 4 4 10 21 2 1 25 24 22 23 20 12 MIN. QFE PRESSURE IN HPA 858.3 855.0 856.0 856.2 853.5 849.2 851.4 852.5 856.3 859.4 861.4 856.4 849.2 DAY 14 8 20 26 11 5 21 9 2 1 5 20 MEAN QNH PRESSURE IN HPA 1019.3 1015.1 1017.6 1014.3 1012.1 1006.5 1006.7 1008.7 1014.5 1019.1 1020.9 1018.5 1014.4 MAX. QNH PRESSURE IN HPA 1027.8 1024.2 1022.4 1019.7 1016.5 1010.5 1010.4 1011.3 1018.0 1023.2 1027.0 1023.4 1027.8 DAY 4 4 10 21 2 1 25 24 22 23 20 12 MIN. QNH PRESSURE IN HPA 1012.0 1008.2 1009.4 1009.6 1006.5 1001.6 1004.1 1005.4 1009.7 1013.3 1015.6 1009.8 1001.6 DAY 14 8 20 26 11 5 21 9 2 1 5 20 MEAN QFF PRESSURE IN HPA 1019.7 1012.3 1012.1 1005.6 1000.7 993.8 994.1 996.8 1006.0 1013.2 1016.4 1015.9 1007.2 MAX. QFF PRESSURE IN HPA 1028.2 1026.5 1018.9 1013.