Heating and Wind Design Conditions for Saudi Arabia

City Lat. Long. Elev. Std. Pres. Heating Dry Bulb, °F Extreme Wind Speed, mph Coldest Month WS / MCDB MCWS / MCWD to DB Annual Extreme Daily
0.4% 1% 99.6% 0.4% Mean DB Std. DB
°N °W Feet psia 99.6% 99% 1% 2.5% 5% WS MCDB WS MCDB MCWS PWD MCWS PWD Max Min Max Min
Abha 18.23 N 42.65 E 6837 11.413 41 44 23 21 19 25 59 22 60 2 180 13 20 92 35 5.6 2.9
Al Jawf 29.78 N 40.10 E 2244 13.546 32 35 26 22 19 26 49 22 52 5 50 9 320 111 28 4.5 3.6
Al Madinah 24.55 N 39.70 E 2070 13.633 48 50 20 18 16 19 65 17 67 7 60 9 300 114 42 2.2 4.0
Al Wajh 26.20 N 36.47 E 52 14.672 53 55 28 25 23 27 68 24 69 7 20 13 270 105 47 3.4 4.7
Ar’ar 30.90 N 41.13 E 1811 13.763 32 34 22 19 17 21 51 18 52 4 270 7 240 111 28 2.0 3.1
At Ta’if 21.48 N 40.55 E 4753 12.344 42 45 23 21 19 24 65 22 66 5 90 10 50 101 35 3.2 2.9
Az Zahran 26.27 N 50.15 E 55 14.67 45 47 26 23 20 22 61 19 61 9 290 13 360 116 40 2.3 3.8
Ha’il 27.43 N 41.68 E 3323 13.018 31 34 23 20 18 23 57 20 60 4 180 8 180 108 25 3.6 4.9
Hafar Al Batin 28.33 N 46.17 E 1165 14.092 36 39 27 23 21 24 56 22 56 6 270 10 240 117 31 2.3 1.8
Jiddah 21.67 N 39.15 E 39 14.679 59 61 23 21 19 23 78 21 77 6 30 13 330 114 54 4.5 3.4
Jizan 16.90 N 42.58 E 9 14.695 68 70 20 18 16 17 82 16 82 5 100 10 230 107 58 4.5 10.3
Khamis Mushayt 18.30 N 42.80 E 6738 11.456 40 43 21 18 16 22 61 20 61 2 150 10 30 97 35 6.8 4.1
Makkah 21.48 N 39.83 E 1017 14.168 59 62 14 12 11 15 77 13 78 4 20 8 300 118 53 2.0 4.3
Qasim 26.30 N 43.77 E 2132 13.602 37 39 21 18 16 20 60 17 57 2 30 8 90 115 32 3.8 3.2
Rafha 29.63 N 43.48 E 1466 13.937 33 35 25 22 20 24 54 22 56 4 270 9 300 115 27 2.7 2.7
Riyadh 24.72 N 46.72 E 2007 13.664 41 44 22 19 17 21 60 18 60 4 320 11 360 115 35 1.4 2.7
Tabuk 28.37 N 36.63 E 2526 13.407 34 37 25 20 17 25 60 20 60 2 110 10 270 107 30 2.2 2.3
Turayf 31.68 N 38.67 E 2667 13.337 29 32 25 22 20 26 46 22 46 6 270 9 270 106 25 2.3 3.4
Yanbu’al Bahr 24.15 N 38.07 E 3 14.698 52 54 26 23 21 25 72 22 72 3 10 17 270 114 47 1.8 2.0