Statistics for EGY_Cairo.Intl.Airport.623660_ETMY Location -- Cairo Intl Airport Al Qahirah EGY {N 30° 7'} {E 31° 23'} {GMT +2.0 Hours} Elevation -- 74m above sea level Standard Pressure at Elevation -- 100439Pa Data Source -- ETMY WMO Station 623660 - Using Design Conditions from "Climate Design Data 2009 ASHRAE Handbook" - If the design condition source is ASHRAE, the design conditions are carefully generated - from a period of record (typically 30 years) to be representative of that location and - be suitable for use in heating/cooling load calculations. If the source is not ASHRAE, - please consult the referenced source for the reasoning behind the data. Design Stat ColdestMonth DB996 DB990 DP996 HR_DP996 DB_DP996 DP990 HR_DP990 DB_DP990 WS004c DB_WS004c WS010c DB_WS010c WS_DB996 WD_DB996 Units {} {°C} {°C} {°C} {} {°C} {°C} {} {°C} {m/s} {°C} {m/s} {°C} {m/s} {deg} Heating 1 7.7 8.7 -3.9 2.7 20.2 -1.4 3.4 19.3 11.6 14.7 10.1 15.8 2.3 90 Design Stat HottestMonth DBR DB004 WB_DB004 DB010 WB_DB010 DB020 WB_DB020 WB004 DB_WB004 WB010 DB_WB010 WB020 DB_WB020 WS_DB004 WD_DB004 DP004 HR_DP004 DB_DP004 DP010 HR_DP010 DB_DP010 DP020 HR_DP020 DB_DP020 EN004 DB_EN004 EN010 DB_EN010 EN020 DB_EN020 #Hrs_8-4_&_DB-12.8/20.6 Units {} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {m/s} {deg} {°C} {} {°C} {°C} {} {°C} {°C} {} {°C} {kJ/kg} {°C} {kJ/kg} {°C} {kJ/kg} {°C} {} Cooling 7 11.5 38.1 21.1 36.7 21.3 35.2 21.5 24.9 31.8 24.2 31 23.7 30.3 5.4 350 23.1 18 27.3 22.3 17.1 26.6 21.9 16.8 26.4 76.1 32 73.4 31 71.3 30.3 930 Design Stat WS010 WS025 WS050 WBmax DBmin_mean DBmax_mean DBmin_stddev DBmax_stddev DBmin05years DBmax05years DBmin10years DBmax10years DBmin20years DBmax20years DBmin50years DBmax50years Units {m/s} {m/s} {m/s} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {°C} {°C} Extremes 9.4 8.1 7.2 28.8 5.1 42 2.1 1.4 3.6 43 2.3 43.8 1.1 44.6 -0.4 45.6 - Monthly Statistics for Dry Bulb temperatures °C Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Maximum 21.0 27.4 33.2 40.0 39.0 39.0 44.0 38.0 39.0 37.2 31.5 27.0 Day:Hour 6:13 23:16 28:16 15:16 18:16 5:16 1:16 19:14 17:14 13:15 3:14 8:13 Minimum 2.4 8.0 10.0 11.0 14.8 17.0 22.0 22.0 19.7 15.0 8.0 8.0 Day:Hour 22:03 28:08 2:05 2:07 9:06 1:06 11:04 29:07 29:06 30:07 28:07 23:08 Daily Avg 13.7 15.9 18.2 21.1 24.8 27.4 28.8 29.2 27.0 24.7 19.6 16.3 - Maximum Dry Bulb temperature of 44.0°C on Jul 1 - Minimum Dry Bulb temperature of 2.4°C on Jan 22 - 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 14.4 15.8 18.4 21.3 24.0 26.1 26.8 24.4 22.2 17.8 14.9 1:01- 2:00 11.7 14.0 15.3 18.0 20.6 23.2 25.6 26.3 24.0 21.7 17.3 14.7 2:01- 3:00 11.2 13.6 14.7 17.7 20.1 22.5 25.0 25.8 23.4 21.1 16.9 14.1 3:01- 4:00 11.0 13.1 14.5 17.3 19.7 21.9 24.5 25.4 23.1 20.7 16.6 13.9 4:01- 5:00 10.7 12.9 14.0 16.8 19.3 21.6 24.2 25.1 22.7 20.3 16.2 13.5 5:01- 6:00 10.3 12.5 13.6 16.3 19.0 21.3 23.8 24.6 22.3 20.0 15.8 13.2 6:01- 7:00 10.5 12.4 13.3 16.3 19.1 22.1 24.2 24.5 21.9 19.6 16.2 13.2 7:01- 8:00 10.3 12.3 13.8 17.3 20.6 23.3 25.0 25.3 22.8 20.2 16.7 13.0 8:01- 9:00 10.9 13.0 15.4 19.0 22.0 24.4 26.2 26.6 24.3 22.1 17.4 13.7 9:01-10:00 12.6 14.6 17.4 21.0 23.8 26.5 28.2 28.2 26.1 24.1 18.5 15.5 10:01-11:00 14.4 16.3 19.3 22.0 25.9 28.4 29.9 29.9 27.9 25.8 19.9 17.1 11:01-12:00 15.8 17.5 20.5 23.1 27.6 30.0 30.8 31.5 29.3 27.4 22.0 18.2 12:01-13:00 16.9 18.6 21.6 24.4 28.9 31.5 31.7 32.7 30.6 28.4 22.9 18.7 13:01-14:00 17.6 19.3 22.2 25.5 30.1 32.9 32.8 33.5 31.7 29.7 23.7 19.5 14:01-15:00 18.0 19.8 23.2 26.3 31.0 33.5 34.0 34.1 32.2 30.2 24.1 20.2 15:01-16:00 17.7 19.9 23.5 26.6 31.3 33.8 34.2 34.4 32.4 30.4 23.8 19.7 16:01-17:00 17.3 19.8 23.4 26.5 31.1 33.9 33.7 34.3 32.2 30.0 23.1 19.2 17:01-18:00 16.6 19.4 22.8 25.9 30.5 33.5 33.6 33.7 31.4 28.8 22.5 18.9 18:01-19:00 15.6 18.4 21.6 24.7 29.2 32.2 32.2 32.7 30.2 27.6 21.6 17.9 19:01-20:00 14.9 17.4 20.3 23.1 27.5 30.4 31.2 31.4 28.9 26.3 20.7 17.2 20:01-21:00 14.3 16.6 19.0 21.8 25.8 28.6 30.0 30.1 27.6 25.2 19.8 16.8 21:01-22:00 13.5 15.8 18.1 20.8 24.4 27.2 28.8 29.2 26.6 24.2 19.3 16.3 22:01-23:00 13.3 15.2 17.2 19.8 23.1 26.1 27.8 28.3 25.7 23.4 18.6 15.7 23:01-24:00 12.6 14.7 16.3 19.1 22.3 25.1 26.8 27.3 25.0 22.7 18.1 15.3 Max Hour 15 16 16 16 16 17 16 16 16 16 15 15 Min Hour 6 8 7 7 6 6 6 7 7 7 6 8 - Monthly Statistics for Extreme temperatures °C #Days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Max >= 32 2 4 14 27 30 30 14 11 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 12.0 13.1 15.3 18.0 18.3 20.4 24.0 24.7 25.1 22.4 20.0 14.6 Day:Hour 3:19 24:06 29:18 16:20 25:21 18:08 6:22 24:04 3:03 15:03 3:10 28:18 Minimum 1.0 -0.1 -0.7 0.0 2.8 8.1 5.0 12.4 11.4 7.5 2.0 0.0 Day:Hour 1:10 8:07 28:19 2:01 4:16 4:11 1:07 23:15 17:12 29:14 24:17 5:22 Daily Avg 7.7 6.8 7.9 9.4 12.1 15.3 19.1 20.0 18.0 15.6 11.8 8.3 - Maximum Dew Point temperature of 25.1°C on Sep 3 - Minimum Dew Point temperature of -0.7°C on Mar 28 - Monthly Statistics for Relative Humidity % Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Maximum 99 94 94 98 94 100 95 94 100 96 176 98 Day:Hour 22:03 17:04 7:04 11:06 3:05 13:05 19:07 8:07 3:08 9:03 19:11 1:07 Minimum 34 17 13 9 12 17 14 23 21 17 27 19 Day:Hour 28:14 23:16 28:18 15:17 4:16 5:16 1:15 23:15 11:14 13:15 24:17 8:13 Daily Avg 68 58 55 52 49 51 59 60 60 60 63 61 - Average Hourly Relative Humidity % Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0:01- 1:00 74 66 66 61 61 62 70 71 71 71 71 67 1:01- 2:00 75 67 68 64 66 66 74 72 74 72 72 68 2:01- 3:00 78 69 70 65 67 68 77 76 76 73 73 70 3:01- 4:00 77 70 72 68 68 71 79 78 77 75 75 70 4:01- 5:00 79 70 74 70 70 72 81 79 78 77 75 71 5:01- 6:00 80 71 75 72 71 74 82 81 80 79 77 72 6:01- 7:00 77 71 75 72 72 71 81 82 82 81 75 69 7:01- 8:00 79 71 74 69 68 69 77 78 78 79 74 70 8:01- 9:00 77 69 67 62 61 63 71 73 72 71 73 68 9:01-10:00 72 64 60 53 53 54 61 64 65 64 71 63 10:01-11:00 66 58 50 47 43 47 54 56 56 57 66 57 11:01-12:00 62 54 44 42 38 42 49 49 49 49 55 53 12:01-13:00 57 48 40 40 34 37 44 45 46 44 51 51 13:01-14:00 54 44 38 36 30 33 41 42 42 39 47 49 14:01-15:00 52 41 35 33 28 32 37 40 40 38 45 47 15:01-16:00 53 42 34 32 28 31 36 39 40 37 45 50 16:01-17:00 55 42 35 33 28 31 38 39 40 38 48 51 17:01-18:00 57 44 37 34 29 31 38 41 42 42 49 53 18:01-19:00 63 47 40 37 32 33 43 44 46 47 52 57 19:01-20:00 66 51 45 44 36 39 49 49 51 52 57 60 20:01-21:00 68 55 50 47 42 45 52 56 56 56 60 61 21:01-22:00 71 59 54 51 48 50 60 60 61 59 63 62 22:01-23:00 71 61 58 56 53 54 65 64 65 64 67 64 23:01-24:00 73 64 63 59 57 58 68 69 67 68 68 65 Max Hour 6 6 7 6 7 6 6 7 7 7 6 6 Min Hour 15 15 16 16 16 17 16 17 17 16 16 15 - Monthly Indicators for Precipitation/Moisture (kPa) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1.1 0.9 1.0 1.1 1.2 1.6 1.9 2.1 1.9 1.6 1.4 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 2 3 6 Day:Hour 22:03 28:08 23:06 Average WC 7 8 8 Avg Del WC 2 1 1 # Hours WC 39 10 7 Maximum HI 29 31 36 38 41 40 35 31 Day:Hour 16:16 25:17 23:16 6:19 21:15 12:16 13:12 2:15 Average HI 28 29 30 31 32 31 29 29 Avg Del HI 0 0 1 2 2 1 0 0 # Hours HI 8 31 132 320 415 293 132 27 - **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 19 20 26 28 34 35 38 51 59 35 26 8 NorthEast 9 14 24 28 32 20 10 15 20 38 18 8 East 4 8 12 6 10 5 2 3 3 9 10 5 SouthEast 6 6 4 3 3 1 1 0 1 3 7 4 South 17 9 4 3 1 1 1 0 0 1 5 16 SouthWest 16 17 4 7 2 0 1 0 0 1 9 27 West 19 11 13 12 5 6 6 1 1 4 12 16 NorthWest 12 16 13 12 14 33 42 30 16 10 14 15 - Monthly Statistics for Wind Speed m/s Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Maximum 21.6 12.9 11.6 12.3 20.0 8.2 26.2 7.7 8.2 8.7 18.5 26.7 Day:Hour 11:06 9:17 21:14 5:14 11:24 3:19 25:18 27:12 5:17 8:17 8:06 27:12 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 3:05 1:08 5:23 4:23 16:05 1:04 8:11 2:08 3:08 3:06 1:03 Daily Avg 2.8 3.7 3.7 4.5 4.2 3.5 3.5 3.1 3.5 3.3 2.8 3.2 - Maximum Wind Speed of 26.7 m/s on Dec 27 - 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 3474 4472 5416 6119 6998 6291 5508 4924 5157 4820 4023 3486 Direct Max 6332 9295 8697 11162 10670 9229 9035 6338 7006 7762 6506 6122 Day 31 23 18 5 18 5 1 28 17 14 9 8 Diffuse Avg 1155 1397 1630 1981 1992 2405 2630 2460 1861 1459 1199 1053 Global Avg 2976 4010 5305 6387 7387 7316 6893 6240 5595 4511 3373 2796 - Maximum Direct Normal Solar of 11162 Wh/m² on Apr 5 - 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 0 7 1 1 0 0 0 0 0 6:01- 7:00 0 0 3 58 93 116 72 26 11 1 0 0 7:01- 8:00 7 74 79 187 215 222 169 99 106 68 90 25 8:01- 9:00 102 182 239 390 396 334 283 206 212 198 196 142 9:01-10:00 242 335 434 631 612 524 490 394 504 460 305 292 10:01-11:00 472 552 710 671 758 634 588 536 650 666 453 529 11:01-12:00 569 622 769 693 795 696 611 649 707 708 651 680 12:01-13:00 629 652 726 644 847 744 579 653 733 705 701 576 13:01-14:00 586 631 636 685 828 774 589 625 713 674 697 532 14:01-15:00 439 609 667 708 797 695 662 576 611 606 526 396 15:01-16:00 340 496 607 669 727 638 633 525 520 517 381 304 16:01-17:00 89 315 476 555 594 537 491 434 351 215 24 11 17:01-18:00 0 4 70 228 330 369 334 202 39 0 0 0 18:01-19:00 0 0 0 0 0 7 8 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 13 13 12 15 13 14 15 13 13 12 13 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 15.9 15.2 16.3 18.1 22.6 26.1 28.5 29.2 28.0 25.3 21.6 18.2 2.0 m 18.2 17.0 17.3 18.2 21.2 24.0 26.2 27.4 27.1 25.6 23.1 20.4 4.0 m 20.1 18.9 18.7 19.0 20.7 22.6 24.3 25.5 25.8 25.1 23.6 21.8 - **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 0 0 0 0 0 0 0 0 0 0 0 HDD base 18C 132 67 29 3 0 0 0 0 0 0 18 58 CDD base 10C 116 165 254 334 458 522 581 597 509 455 287 194 CDD base 18C 0 8 35 97 210 282 333 349 269 207 65 4 CDH base 20C 1 171 846 1961 3850 5349 6513 6877 5008 3620 1038 165 CDH base 23C 0 49 358 1017 2340 3455 4287 4648 3044 1977 379 26 CDH base 27C 0 1 92 370 962 1658 1981 2140 1245 693 75 0 - 4472 annual cooling degree-days (10°C baseline) - 0 annual heating degree-days (10°C baseline) - 1859 annual cooling degree-days (18°C baseline) - 307 annual heating degree-days (18°C baseline) - Climate type "BSh" (Köppen classification)** - Hot subtropical steppe (lat. 15-30°N) - **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 - Wet Period=Jul:Aug Week closest to this period average temperature selected for Typical Period Typical Week Period selected: Aug 5:Aug 11, Average Temp= 29.00°C, Deviation=| 0.184|°C - Dry Period=Sep:Jun Week closest to this period average temperature selected for Typical Period Typical Week Period selected: Mar 31:Apr 6, Average Temp= 20.87°C, Deviation=| 0.168|°C - Summer is Jul:Sep Extreme Summer Week (nearest maximum temperature for summer) Extreme Hot Week Period selected: Aug 19:Aug 25, Maximum Temp= 44.00°C, Deviation=|13.208|°C Typical Summer Week (nearest average temperature for summer) Typical Week Period selected: Jul 15:Jul 21, Average Temp= 28.33°C, Deviation=| 0.043|°C - Winter is Jan:Mar Extreme Winter Week (nearest minimum temperature for winter) Extreme Cold Week Period selected: Jan 22:Jan 28, Minimum Temp= 2.40°C, Deviation=| 9.373|°C Typical Winter Week (nearest average temperature for winter) Typical Week Period selected: Feb 19:Feb 25, Average Temp= 15.95°C, Deviation=| 0.099|°C - Autumn is Oct:Dec Typical Autumn Week (nearest average temperature for autumn) Typical Week Period selected: Nov 12:Nov 18, Average Temp= 20.17°C, Deviation=| 0.435|°C - Spring is Apr:Jun Typical Spring Week (nearest average temperature for spring) Typical Week Period selected: May 20:May 26, Average Temp= 24.44°C, Deviation=| 1.309|°C