Heating and Wind Design Conditions for Thailand

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
Bangkok 13.92 N 100.60 E 39 14.679 65 68 19 16 14 14 82 12 81 4 40 11 180 102 61 3.1 2.7
Chiang Mai 18.78 N 98.98 E 1030 14.161 53 56 17 13 11 13 72 10 75 1 360 7 190 103 48 1.6 1.8
Chiang Rai 19.92 N 99.83 E 1295 14.025 49 52 10 8 7 9 69 7 71 0 20 5 180 102 44 1.6 2.5
Chumphon 10.48 N 99.18 E 16 14.691 66 68 18 15 13 19 83 17 83 0 30 9 120 100 63 2.0 2.3
Hat Yai 6.92 N 100.43 E 114 14.639 70 71 18 16 14 19 83 16 83 0 330 7 240 100 67 2.0 1.4
Phetchabun 16.43 N 101.15 E 380 14.499 56 59 10 9 8 10 79 9 79 0 360 6 180 104 46 1.3 19.1
Phrae 18.17 N 100.17 E 531 14.42 55 58 10 8 7 7 76 7 79 0 30 5 240 105 48 2.0 5.8
Tak 16.88 N 99.15 E 406 14.485 57 60 18 14 12 8 80 7 80 0 270 5 270 106 52 1.3 2.9