Statistics for EGY_Helwan.623780_ETMY Location -- Helwan Al Qahirah EGY {N 29° 52'} {E 31° 19'} {GMT +2.0 Hours} Elevation -- 141m above sea level Standard Pressure at Elevation -- 99643Pa Data Source -- ETMY WMO Station 623780 - Using Design Conditions calculated from this weather file. - The following design temperature statistics are calculated based on THIS weather file ONLY - and may not be representative of a long-term period of record normally used for - design temperatures. Also, note that dew point temperatures are listed where - wet-bulb temperatures are normally presented. Design Stat Coldest Month HDB 99.6% HDB 99% Units {} {C} {C} Heating 2 5.1 6.3 Design Stat Hottest Month CDB .4% CDB 1% CDB 2% CDP .4% CDP 1% CDP 2% Units {} {C} {C} {C} {C} {C} {C} Cooling 6 40.1 38.0 37.3 22.3 21.3 20.8 Design Stat Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Units {m/s} {m/s} {m/s} {m/s} {m/s} {m/s} {m/s} {m/s} {m/s} {m/s} {m/s} {m/s} Max WS 9.3 9.8 12.9 12.3 15.4 11.3 9.3 10.3 8.7 11.3 11.3 9.3 - Monthly Statistics for Dry Bulb temperatures °C Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Maximum 22.8 27.3 32.2 40.9 42.2 44.3 37.9 37.8 34.6 37.2 30.0 25.9 Day:Hour 31:15 24:16 25:15 24:14 25:14 13:17 15:14 13:15 8:14 1:15 15:15 21:17 Minimum 5.2 3.8 5.6 3.9 13.0 13.9 20.0 20.3 17.1 13.8 4.4 5.0 Day:Hour 26:11 27:06 13:06 4:06 2:06 5:06 25:08 8:06 26:08 28:06 26:06 10:06 Daily Avg 13.7 14.8 17.5 21.5 24.7 27.4 28.4 27.8 26.4 25.1 18.5 15.3 - Maximum Dry Bulb temperature of 44.3°C on Jun 13 - Minimum Dry Bulb temperature of 3.8°C on Feb 27 - Average Hourly Statistics for Dry Bulb temperatures °C Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0:01- 1:00 12.2 12.9 14.8 18.4 21.6 24.3 25.6 25.1 23.5 22.4 16.8 13.5 1:01- 2:00 11.8 12.4 14.1 17.6 20.8 23.3 24.5 24.2 23.0 21.8 16.3 13.1 2:01- 3:00 11.2 11.9 13.4 16.8 19.9 22.2 23.4 23.3 22.5 21.2 15.7 12.6 3:01- 4:00 11.2 11.7 13.5 17.4 20.4 22.7 23.7 23.6 22.0 21.6 15.9 12.7 4:01- 5:00 11.1 11.4 13.6 17.9 20.9 23.1 24.0 23.9 21.6 22.0 16.0 12.7 5:01- 6:00 11.0 11.3 13.4 17.2 21.5 22.6 23.8 23.1 21.0 21.2 16.3 12.4 6:01- 7:00 11.0 11.7 13.9 17.9 21.7 23.1 23.9 23.3 21.4 21.7 16.7 12.3 7:01- 8:00 11.0 12.0 14.7 18.9 22.2 23.9 24.4 24.0 22.7 22.5 16.8 12.5 8:01- 9:00 11.0 12.3 15.5 20.1 22.9 25.0 25.3 25.1 24.6 23.5 16.6 13.0 9:01-10:00 11.8 13.4 17.2 22.1 23.8 27.4 28.1 28.3 27.5 25.3 17.2 14.7 10:01-11:00 12.9 14.8 18.7 23.7 25.1 29.4 30.2 30.6 29.4 26.9 17.9 16.2 11:01-12:00 14.4 16.5 20.1 24.7 26.4 30.9 31.4 31.8 29.9 28.1 19.0 17.4 12:01-13:00 16.0 17.8 21.3 25.3 27.8 31.8 32.2 32.2 30.4 29.0 20.4 18.4 13:01-14:00 17.4 18.9 22.3 26.0 29.1 32.5 33.2 32.5 30.7 29.6 22.2 19.1 14:01-15:00 18.3 19.6 23.4 27.2 30.3 33.4 34.8 33.6 31.8 30.4 23.8 19.9 15:01-16:00 17.8 19.2 22.6 26.1 30.1 32.1 33.9 31.9 30.4 29.4 23.2 19.1 16:01-17:00 17.2 18.7 21.8 25.4 29.7 31.3 33.0 31.1 30.2 28.8 22.3 18.4 17:01-18:00 16.7 18.2 21.1 24.9 29.0 30.9 31.8 30.5 30.6 28.3 21.1 17.7 18:01-19:00 16.1 17.2 19.9 24.1 27.9 30.5 30.6 30.1 30.3 27.6 19.9 17.0 19:01-20:00 15.1 16.4 18.9 22.5 26.1 29.3 30.8 29.4 28.3 25.7 19.5 15.9 20:01-21:00 14.4 15.5 17.7 21.6 25.3 28.5 30.1 28.6 27.1 24.8 18.6 15.1 21:01-22:00 13.9 15.0 17.0 20.9 24.5 27.5 29.0 27.7 26.1 24.2 18.1 14.7 22:01-23:00 13.3 14.2 16.3 20.0 23.6 26.4 27.9 26.8 25.0 23.6 17.6 14.3 23:01-24:00 12.8 13.4 15.6 19.3 22.8 25.3 26.8 25.9 24.0 23.0 17.2 13.9 Max Hour 15 15 15 15 15 15 15 15 15 15 15 15 Min Hour 9 6 3 3 3 3 3 6 6 3 3 7 - Monthly Statistics for Extreme temperatures °C #Days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Max >= 32 1 10 9 22 30 28 19 12 Max <= 0 Min <= 0 Min <=-18 - Monthly Statistics for Dew Point temperatures °C Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Maximum 12.2 12.2 13.9 17.2 17.2 20.0 31.1 22.2 21.1 20.2 17.8 13.9 Day:Hour 1:08 26:03 26:21 7:21 19:03 24:03 14:15 25:03 11:24 2:08 9:03 1:21 Minimum 0.3 0.2 -0.1 -0.4 0.0 1.1 3.9 7.2 6.1 4.9 -0.1 0.0 Day:Hour 5:14 16:08 4:18 21:16 4:03 1:15 13:15 12:15 8:14 27:08 16:16 5:21 Daily Avg 6.1 6.2 4.6 6.6 8.1 12.5 15.5 16.4 15.1 13.8 10.0 6.9 - Maximum Dew Point temperature of 31.1°C on Jul 14 - Minimum Dew Point temperature of -0.4°C on Apr 21 - Monthly Statistics for Relative Humidity % Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Maximum 105 120 99 106 87 103 94 96 98 97 103 113 Day:Hour 29:11 27:03 7:07 4:06 19:06 5:06 9:07 25:03 1:07 30:06 3:10 11:11 Minimum 25 19 14 12 8 8 14 17 17 19 16 26 Day:Hour 23:15 24:16 25:15 26:12 25:14 1:15 13:15 26:15 8:14 3:15 16:16 5:21 Daily Avg 63 59 46 42 39 44 50 54 53 53 60 60 - Average Hourly Relative Humidity % Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0:01- 1:00 69 66 55 51 48 53 59 65 68 64 67 65 1:01- 2:00 71 69 57 55 52 59 65 70 70 67 69 67 2:01- 3:00 73 72 60 59 57 65 72 75 73 71 72 69 3:01- 4:00 73 72 60 57 55 63 70 74 75 69 72 68 4:01- 5:00 73 72 59 55 53 62 69 72 76 67 72 68 5:01- 6:00 73 72 60 59 52 66 73 77 78 71 72 70 6:01- 7:00 73 71 58 56 51 65 73 77 78 68 71 70 7:01- 8:00 73 71 55 53 50 62 70 73 73 65 71 69 8:01- 9:00 73 70 51 48 47 57 65 67 65 60 71 68 9:01-10:00 70 66 46 41 43 47 52 53 51 52 67 62 10:01-11:00 66 61 41 36 38 39 43 43 43 46 63 58 11:01-12:00 60 55 38 33 33 33 37 37 38 41 57 54 12:01-13:00 53 49 34 30 28 29 33 34 35 36 50 51 13:01-14:00 49 44 31 28 25 26 30 31 33 34 44 48 14:01-15:00 46 41 28 26 23 24 27 29 30 32 39 46 15:01-16:00 47 42 29 28 23 27 28 32 32 34 41 48 16:01-17:00 49 44 31 29 24 28 30 35 33 36 44 50 17:01-18:00 51 46 33 31 25 29 33 38 34 38 48 52 18:01-19:00 54 49 37 33 27 30 36 41 35 42 53 54 19:01-20:00 57 51 40 36 31 34 38 45 42 48 55 57 20:01-21:00 60 54 44 39 34 36 41 50 46 52 59 60 21:01-22:00 62 56 47 42 36 40 45 53 52 55 61 61 22:01-23:00 64 60 49 45 40 44 49 57 58 57 62 63 23:01-24:00 66 64 52 48 43 49 54 61 65 60 65 64 Max Hour 3 5 6 3 3 6 7 6 6 3 6 7 Min Hour 15 15 15 15 15 15 15 15 15 15 15 15 - Monthly Indicators for Precipitation/Moisture (kPa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0.9 0.9 0.8 0.9 0.9 1.2 1.5 1.5 1.4 1.3 1.1 1.1 - Monthly Statistics for Wind Chill/Heat Index temperatures °C ** Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Minimum WC -3 -5 4 6 1 -2 Day:Hour 26:10 27:06 19:10 5:01 26:06 11:11 Average WC 5 4 6 7 4 5 Avg Del WC 3 4 3 2 4 3 # Hours WC 35 36 27 4 8 24 Maximum HI 28 32 58 36 33 34 Day:Hour 26:12 23:12 14:15 28:12 20:11 2:12 Average HI 27 29 30 30 29 29 Avg Del HI 0 0 1 1 0 0 # Hours HI 3 66 170 198 102 55 - **WindChill/HeatIndex Temps -- statistics...only those different from Air Temps - Monthly Wind Direction % {N=0 or 360,E=90,S=180,W=270} Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec North 14 21 21 18 42 38 51 45 57 31 38 8 NorthEast 13 15 21 30 19 16 8 22 20 31 35 41 East 7 10 17 13 6 6 2 0 3 1 4 10 SouthEast 11 8 5 4 2 1 0 0 1 1 4 5 South 20 5 5 8 4 1 0 0 2 4 1 12 SouthWest 15 10 5 3 4 1 0 0 2 1 3 10 West 6 14 14 4 6 8 6 8 3 7 2 2 NorthWest 13 16 13 21 17 30 33 25 12 24 13 11 - Monthly Statistics for Wind Speed m/s Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Maximum 9.3 9.8 12.9 12.3 15.4 11.3 9.3 10.3 8.7 11.3 11.3 9.3 Day:Hour 29:15 18:24 6:21 3:03 22:21 12:21 4:21 17:21 5:21 1:01 29:15 10:15 Minimum 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Day:Hour 1:01 1:01 1:03 4:03 1:03 3:09 3:09 1:03 8:06 4:09 1:03 2:09 Daily Avg 2.4 3.2 4.0 4.6 5.1 4.9 4.4 4.5 3.4 4.0 4.5 3.4 - Maximum Wind Speed of 15.4 m/s on May 22 - Minimum Wind Speed of 0.0 m/s on Jan 1 - Monthly Statistics for Solar Radiation (Direct Normal, Diffuse, Global Horizontal) Wh/m² Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Direct Avg 3730 4289 5829 6582 7597 7249 6332 5623 5528 5376 4314 3428 Direct Max 7118 7597 9202 10373 11994 12165 7913 8366 7223 8502 6448 5713 Day 5 24 9 23 12 13 30 17 1 18 16 21 Diffuse Avg 1082 1413 1589 1831 1916 2025 2150 2118 1831 1354 1121 1062 Global Avg 3013 3937 5456 6628 7523 7774 7246 6604 5795 4721 3326 2765 - Maximum Direct Normal Solar of 12165 Wh/m² on Jun 13 - Average Hourly Statistics for Direct Normal Solar Radiation Wh/m² Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0:01- 1:00 0 0 0 0 0 0 0 0 0 0 0 0 1:01- 2:00 0 0 0 0 0 0 0 0 0 0 0 0 2:01- 3:00 0 0 0 0 0 0 0 0 0 0 0 0 3:01- 4:00 0 0 0 0 0 0 0 0 0 0 0 0 4:01- 5:00 0 0 0 0 0 0 0 0 0 0 0 0 5:01- 6:00 0 0 0 5 63 39 4 0 0 0 0 0 6:01- 7:00 0 0 30 224 354 237 154 69 29 11 0 0 7:01- 8:00 18 115 264 355 406 304 202 140 179 175 127 27 8:01- 9:00 144 241 377 480 437 432 243 229 374 354 170 150 9:01-10:00 274 344 534 702 553 674 594 602 712 549 305 351 10:01-11:00 400 455 660 825 701 882 829 856 851 704 425 497 11:01-12:00 531 578 704 828 769 966 885 925 771 777 509 590 12:01-13:00 607 635 728 746 853 888 753 736 623 746 606 553 13:01-14:00 657 650 744 655 872 754 675 579 513 697 741 508 14:01-15:00 582 585 708 642 850 750 753 623 622 667 803 457 15:01-16:00 415 448 598 539 756 572 612 429 445 477 571 279 16:01-17:00 102 236 423 420 617 461 438 316 357 218 58 15 17:01-18:00 0 1 59 162 361 277 183 119 52 0 0 0 18:01-19:00 0 0 0 0 5 14 5 0 0 0 0 0 19:01-20:00 0 0 0 0 0 0 0 0 0 0 0 0 20:01-21:00 0 0 0 0 0 0 0 0 0 0 0 0 21:01-22:00 0 0 0 0 0 0 0 0 0 0 0 0 22:01-23:00 0 0 0 0 0 0 0 0 0 0 0 0 23:01-24:00 0 0 0 0 0 0 0 0 0 0 0 0 Max Hour* 14 14 14 12 14 12 12 12 11* 12 15 12 Min Hour 1 1 1 1 1 1 1 1 1 1 1 1 - Monthly Calculated "undisturbed" Ground Temperatures** °C Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0.5 m 18.0 15.7 15.1 15.7 18.7 22.2 25.4 27.7 28.4 27.3 24.7 21.3 2.0 m 20.1 17.9 16.9 16.9 18.5 20.8 23.4 25.5 26.7 26.5 25.0 22.7 4.0 m 21.4 19.7 18.7 18.4 19.0 20.4 22.1 23.7 24.9 25.1 24.5 23.1 - **These ground temperatures should NOT BE USED in the GroundTemperatures object to compute building floor losses. - The temperatures for 0.5 m depth can be used for GroundTemperatures:Surface. - The temperatures for 4.0 m depth can be used for GroundTemperatures:Deep. - Calculations use a standard soil diffusivity of 2.3225760E-03 {m**2/day} - Monthly Heating/Cooling Degree Days/Hours Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec HDD base 10C 0 2 0 0 0 0 0 0 0 0 0 0 HDD base 18C 132 92 49 20 0 0 0 0 0 0 29 89 CDD base 10C 116 137 234 345 457 522 571 551 493 469 256 164 CDD base 18C 0 3 35 125 209 282 323 303 253 221 45 5 CDH base 20C 29 132 778 2488 3782 5343 6270 5779 4640 3870 691 181 CDH base 23C 0 28 318 1508 2245 3387 4130 3615 2749 2075 202 13 CDH base 27C 0 0 70 699 864 1522 1948 1520 1038 694 14 0 - 4314 annual cooling degree-days (10°C baseline) - 2 annual heating degree-days (10°C baseline) - 1803 annual cooling degree-days (18°C baseline) - 411 annual heating degree-days (18°C baseline) - Climate type "BSh" (Köppen classification)** - Hot subtropical steppe (lat. 15-30°N) - Unbearably hot dry periods in summer, but passive cooling is possible - **Note that the Köppen classification shown here is derived algorithmically from the source weather data. - It may not be indicative of the long term climate for this location. - Climate type "2B" (ASHRAE Standards 90.1-2004 and 90.2-2004 Climate Zone)** - Hot - Dry, Probable Köppen classification=BWh, Arid Subtropical - **Note that the ASHRAE classification shown here is derived algorithmically from the source weather data. - It may not be indicative of the long term climate for this location. - Typical/Extreme Period Determination - No discernible wet period..... Week closest to average annual temperature selected for Typical Period Typical Week Period selected: Apr 30:May 6, Average Temp= 21.81°C, Deviation=| 0.023|°C - Summer is May:Jul Extreme Summer Week (nearest maximum temperature for summer) Extreme Hot Week Period selected: Jul 10:Jul 16, Maximum Temp= 44.30°C, Deviation=|15.117|°C Typical Summer Week (nearest average temperature for summer) Typical Week Period selected: Jun 19:Jun 25, Average Temp= 26.85°C, Deviation=| 0.213|°C - Winter is Nov:Jan Extreme Winter Week (nearest minimum temperature for winter) Extreme Cold Week Period selected: Jan 11:Jan 17, Minimum Temp= 4.40°C, Deviation=| 8.712|°C Typical Winter Week (nearest average temperature for winter) Typical Week Period selected: Dec 20:Dec 26, Average Temp= 15.83°C, Deviation=| 0.408|°C - Autumn is Aug:Oct Typical Autumn Week (nearest average temperature for autumn) Typical Week Period selected: Oct 17:Oct 23, Average Temp= 26.43°C, Deviation=| 0.047|°C - Spring is Feb:Apr Typical Spring Week (nearest average temperature for spring) Typical Week Period selected: Mar 22:Mar 28, Average Temp= 18.03°C, Deviation=| 0.118|°C