Heating and Wind Design Conditions for Pennsylvania

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
Allentown 40.65 75.43 117 99.93 -14.9 -12.3 11.9 10.4 9.2 12.7 -3.3 11.2 -4.6 4.2 270 4.9 240 34.9 -18.7 1.6 2.9
Altoona 40.30 78.32 458 95.94 -15.0 -12.3 9.1 8.2 7.4 10.1 -6.8 9.1 -5.8 4.0 270 3.4 250 33.5 -20.5 2.0 4.4
Bradford 41.80 78.63 653 93.72 -21.2 -18.3 8.5 8.0 7.1 9.6 -5.8 8.4 -6.0 3.1 270 4.2 240 30.6 -26.3 1.6 2.8
Du Bois 41.18 78.90 554 94.84 -17.8 -15.0 9.3 8.3 7.6 10.3 -6.8 9.3 -6.5 5.0 280 4.3 270 32.0 -22.8 1.7 3.9
Erie 42.08 80.18 225 98.65 -16.6 -14.1 11.9 10.7 9.7 12.7 -2.5 11.4 -2.5 6.1 200 5.4 250 32.3 -20.2 1.7 3.6
Harrisburg 40.20 76.77 94 100.20 -13.0 -10.7 10.0 8.7 7.9 10.9 -1.8 9.7 -1.9 3.7 270 4.2 250 36.0 -16.7 1.8 3.2
Philadelphia, Int’l Airport 39.88 75.25 9 101.22 -11.9 -9.7 10.9 9.6 8.5 11.7 -0.8 10.1 -1.4 5.2 290 4.8 230 35.7 -15.3 1.6 3.1
Philadelphia, Northeast A 40.08 75.02 37 100.88 -11.7 -9.5 9.3 8.3 7.6 9.8 -0.9 8.6 -1.4 4.5 300 4.4 260 36.2 -15.9 1.4 3.4
Philadelphia, Willow Gr NAS 40.20 75.15 110 100.01 -12.0 -9.8 7.9 6.8 5.9 8.3 -1.0 7.3 -1.2 2.4 300 2.8 250 37.2 -16.9 3.0 3.2
Pittsburgh, Allegheny Co. A 40.35 79.93 382 96.82 -15.3 -11.9 9.2 8.3 7.7 10.2 -4.2 9.2 -4.4 5.0 250 4.8 240 34.2 -20.2 1.7 5.2
Pittsburgh, Int’l Airport 40.50 80.22 373 96.92 -16.9 -14.1 10.9 9.5 8.4 11.7 -4.7 10.2 -3.9 4.5 260 4.9 230 33.8 -21.0 1.7 3.7
Wilkes-Barre/Scranton 41.33 75.73 289 97.90 -16.7 -14.2 9.1 8.0 7.3 9.5 -3.1 8.4 -4.2 3.8 230 4.8 220 33.5 -20.6 1.6 2.7
Williamsport 41.25 76.92 160 99.42 -16.6 -13.7 10.3 9.0 8.1 10.7 -4.9 9.5 -3.8 3.4 270 4.6 250 34.4 -21.3 1.7 3.3