Heating and Wind Design Conditions for New Hampshire

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
Concord 43.20 71.50 344 14.513 -8 -2 23 20 17 23 20 20 21 4 320 10 230 95 -18 2.9 5.5
Lebanon 43.63 72.30 597 14.381 -7 -3 18 15 14 18 25 16 26 2 360 9 220 94 -17 2.0 5.2
Mount Washington 44.27 71.30 6266 11.659 -23 -19 88 81 73 99 -14 92 -15 73 280 21 270 65 -33 2.3 4.1
Portsmouth, Pease AFB 43.08 70.82 102 14.642 4 9 21 18 16 22 26 20 27 8 280 8 270 94 -2 2.2 3.2