Heating and Wind Design Conditions for New Hampshire

City Lat. Long. Elev. Std. Pres. Heating Dry Bulb, °C Extreme Wind Speed, m/s Coldest Month WS / MCDB MCWS / MCWD to DB Annual Extreme Daily
0.4% 1% 99.6% 0.4% Mean DB Std. DB
°N °W Meters kPa 99.6% 99% 1% 2.5% 5% WS MCDB WS MCDB MCWS PWD MCWS PWD Max Min Max Min
Concord 43.20 71.50 105 100.07 -21.9 -18.9 10.0 8.7 7.7 10.0 -6.6 9.0 -6.2 2.0 320 4.6 230 34.9 -27.9 1.6 3.1
Lebanon 43.63 72.30 182 99.16 -21.8 -19.3 7.9 6.9 6.1 8.0 -3.8 7.0 -3.4 1.1 360 4.1 220 34.2 -27.3 1.1 2.9
Mount Washington 44.27 71.30 1910 80.39 -30.8 -28.2 39.4 36.1 32.6 44.4 -25.3 41.1 -26.0 32.4 280 9.3 270 18.2 -36.0 1.3 2.3
Portsmouth, Pease AFB 43.08 70.82 31 100.95 -15.5 -12.9 9.4 8.1 7.1 10.0 -3.2 8.9 -2.6 3.4 280 3.7 270 34.2 -18.7 1.2 1.8