Heating and Wind Design Conditions for Massachusetts

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
Boston 42.37 71.03 30 14.680 7 12 29 25 23 30 30 27 28 17 320 14 270 96 0 2.7 4.7
East Falmouth, Otis Angb 41.65 70.52 131 14.626 11 14 26 22 20 26 34 23 33 9 300 10 240 90 5 2.5 3.8
Weymouth, S Weymth NAS 42.15 70.93 161 14.610 6 11 19 16 14 18 29 16 29 7 320 9 260 97 -2 3.8 3.8
Worcester 42.27 71.88 1010 14.167 0 5 27 23 20 29 22 26 21 14 270 10 270 90 -6 1.9 4.1