Heating and Wind Design Conditions for Ontario

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
Armstrong A 50.30 89.03 351 97.18 -36.3 -34.4 9.6 8.5 7.5 9.4 -19.1 8.2 -19.2 1.2 270 5.5 0 31.2 -44.8 1.8 2.7
Atikokan 48.75 91.62 393 96.69 -35.2 -32.8 7.2 6.3 5.5 7.1 -14.2 6.1 -14.6 0.3 270 3.4 230 31.8 -40.9 2.0 2.1
Big Trout Lake 53.83 89.87 224 98.66 -35.8 -34.4 10.4 9.2 8.2 10.5 -18.1 9.3 -18.9 2.5 290 4.0 200 29.7 -40.9 1.8 2.7
Earlton A 47.70 79.85 243 98.44 -32.6 -29.6 9.6 8.4 7.7 10.6 -10.1 9.3 -10.9 1.8 320 5.2 200 32.6 -38.6 2.1 2.8
Geraldton 49.78 86.93 351 97.18 -35.7 -33.5 9.2 7.9 7.1 9.7 -16.2 8.6 -15.6 0.7 270 4.7 0 30.7 -42.5 2.3 3.7
Gore Bay A 45.88 82.57 193 99.03 -24.3 -21.4 12.0 10.4 9.2 13.1 -5.3 11.4 -5.8 3.1 0 4.8 180 29.7 -29.6 2.5 3.3
Kapuskasing A 49.42 82.47 227 98.63 -34.4 -31.7 8.7 7.6 6.9 9.5 -15.0 8.6 -15.0 1.8 270 4.6 230 32.3 -39.4 1.5 2.8
Kenora A 49.78 94.37 411 96.48 -32.7 -30.2 9.2 8.2 7.5 9.3 -14.0 8.4 -14.7 3.6 320 4.9 180 31.7 -35.8 1.9 2.8
London A 43.03 81.15 278 98.03 -19.3 -16.7 11.2 9.9 8.7 13.2 -6.2 11.4 -6.3 3.8 250 5.1 250 32.2 -23.9 1.9 3.1
Mount Forest 43.98 80.75 415 96.44 -21.5 -19.3 11.0 9.5 8.4 12.4 -7.1 11.0 -7.6 2.7 90 4.4 250 30.4 -26.4 1.2 2.5
Muskoka A 44.97 79.30 282 97.98 -27.0 -24.0 9.4 8.5 7.8 10.3 -6.0 9.0 -5.9 2.9 320 4.1 270 30.8 -34.3 1.2 3.1
North Bay A 46.35 79.43 371 96.95 -27.9 -25.1 8.8 7.7 7.0 10.4 -8.7 9.1 -8.9 2.8 0 4.4 230 30.0 -32.3 1.8 3.0
Ottawa Int’l A 45.32 75.67 114 99.96 -24.8 -22.2 10.0 8.8 7.7 11.9 -8.5 10.3 -9.3 3.9 290 4.5 250 33.0 -28.4 1.5 2.8
Sault Ste. Marie A 46.48 84.52 192 99.04 -25.2 -22.3 11.8 10.2 8.8 12.5 -8.0 10.6 -7.9 1.9 90 3.9 220 31.3 -31.9 1.8 3.3
Simcoe 42.85 80.27 241 98.46 -18.6 -16.2 10.6 9.1 8.1 12.5 -4.8 10.6 -4.2 4.6 270 5.0 230 32.5 -23.2 1.6 2.6
Sioux Lookout A 50.12 91.90 390 96.73 -34.5 -31.9 7.5 6.7 6.1 8.4 -16.6 7.5 -16.7 1.9 270 4.0 200 31.9 -39.3 1.8 2.7
Sudbury A 46.62 80.80 348 97.21 -28.4 -25.6 13.2 11.7 10.4 13.4 -10.6 12.1 -10.6 4.6 0 6.2 230 31.8 -32.7 2.2 2.9
Thunder Bay A 48.37 89.32 199 98.96 -30.2 -27.6 10.8 9.2 7.9 11.3 -12.8 9.8 -14.2 3.8 250 5.1 200 32.4 -34.9 2.1 2.6
Timmins A 48.57 81.37 295 97.83 -33.5 -30.5 9.4 8.5 7.6 9.8 -14.3 8.7 -14.1 2.0 180 4.4 250 32.7 -39.3 2.0 2.6
Toronto Int’l A 43.67 79.63 173 99.26 -19.9 -17.2 11.6 10.0 8.8 13.0 -5.8 11.4 -5.1 4.1 340 5.3 270 33.1 -24.0 1.6 3.1
Trenton A 44.12 77.53 86 100.30 -22.1 -19.6 11.5 9.9 8.6 13.4 -5.3 11.7 -4.6 2.8 50 5.5 230 31.4 -26.7 1.7 3.1
Wiarton A 44.75 81.10 222 98.69 -20.3 -17.6 11.3 10.0 8.7 11.9 -3.0 10.5 -4.0 3.2 340 5.4 230 30.9 -25.9 1.3 3.9
Windsor A 42.27 82.97 190 99.06 -16.9 -14.6 12.4 10.8 9.4 13.2 -5.4 11.8 -5.7 5.3 230 5.5 250 34.4 -20.5 1.5 3.0