Heating and Wind Design Conditions for Idaho

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
Boise 43.57 116.22 2867 13.235 2 9 24 21 18 22 37 19 37 6 130 11 320 103 -4 2.7 9.1
Burley 42.55 113.77 4150 12.621 -5 2 23 21 19 23 30 22 28 7 60 8 280 98 -11 4.0 8.5
Idaho Falls 43.52 112.07 4741 12.346 -12 -6 27 23 21 28 32 23 29 7 360 12 180 96 -20 3.6 9.0
Lewiston 46.38 117.02 1437 13.948 6 15 20 17 14 24 38 20 40 5 280 7 310 103 3 2.7 9.9
Mountain Home, AFB 43.05 115.87 2995 13.173 0 5 23 21 18 23 33 21 31 2 90 8 350 105 -6 3.2 8.5
Mullan 47.47 115.80 3317 13.017 -1 7 10 10 9 11 18 9 21 2 10 4 10 92 -7 2.0 7.9
Pocatello 42.92 112.60 4478 12.468 -7 0 29 25 23 30 36 27 36 6 50 11 250 98 -15 2.3 9.1