Heating and Wind Design Conditions for Ontario

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
Armstrong A 50.30 89.03 1152 14.09 -33 -30 22 19 17 21 -2 18 -3 3 270 12 0 88 -49 3.2 4.9
Atikokan 48.75 91.62 1289 14.02 -31 -27 16 14 12 16 6 14 6 1 270 8 230 89 -42 3.6 3.8
Big Trout Lake 53.83 89.87 735 14.31 -32 -30 23 21 18 24 -1 21 -2 6 290 9 200 86 -42 3.2 4.9
Earlton A 47.70 79.85 797 14.28 -27 -21 21 19 17 24 14 21 12 4 320 12 200 91 -38 3.8 5.0
Geraldton 49.78 86.93 1152 14.09 -32 -28 21 18 16 22 3 19 4 2 270 11 0 87 -45 4.1 6.7
Gore Bay A 45.88 82.57 633 14.36 -12 -7 27 23 21 29 23 26 22 7 0 11 180 86 -21 4.5 5.9
Kapuskasing A 49.42 82.47 745 14.30 -30 -25 20 17 16 21 5 19 5 4 270 10 230 90 -39 2.7 5.0
Kenora A 49.78 94.37 1348 13.99 -27 -22 21 18 17 21 7 19 6 8 320 11 180 89 -32 3.4 5.0
London A 43.03 81.15 912 14.22 -3 2 25 22 20 30 21 26 21 9 250 11 250 90 -11 3.4 5.6
Mount Forest 43.98 80.75 1362 13.99 -7 -3 25 21 19 28 19 25 18 6 90 10 250 87 -16 2.2 4.5
Muskoka A 44.97 79.30 925 14.21 -17 -11 21 19 18 23 21 20 21 7 320 9 270 87 -30 2.2 5.6
North Bay A 46.35 79.43 1217 14.06 -18 -13 20 17 16 23 16 20 16 6 0 10 230 86 -26 3.2 5.4
Ottawa Int’l A 45.32 75.67 374 14.50 -13 -8 23 20 17 27 17 23 15 9 290 10 250 91 -19 2.7 5.0
Sault Ste. Marie A 46.48 84.52 630 14.36 -13 -8 27 23 20 28 18 24 18 4 90 9 220 88 -25 3.2 5.9
Simcoe 42.85 80.27 791 14.28 -2 3 24 20 18 28 23 24 24 10 270 11 230 91 -10 2.9 4.7
Sioux Lookout A 50.12 91.90 1280 14.03 -30 -25 17 15 14 19 2 17 2 4 270 9 200 89 -39 3.2 4.9
Sudbury A 46.62 80.80 1142 14.10 -19 -14 30 26 23 30 13 27 13 10 0 14 230 89 -27 4.0 5.2
Thunder Bay A 48.37 89.32 653 14.35 -22 -18 24 21 18 25 9 22 6 9 250 11 200 90 -31 3.8 4.7
Timmins A 48.57 81.37 968 14.19 -28 -23 21 19 17 22 6 20 7 5 180 10 250 91 -39 3.6 4.7
Toronto Int’l A 43.67 79.63 568 14.40 -4 1 26 22 20 29 22 26 23 9 340 12 270 92 -11 2.9 5.6
Trenton A 44.12 77.53 282 14.55 -8 -3 26 22 19 30 23 26 24 6 50 12 230 89 -16 3.1 5.6
Wiarton A 44.75 81.10 728 14.31 -5 0 25 22 19 27 27 24 25 7 340 12 230 88 -15 2.3 7.0
Windsor A 42.27 82.97 623 14.37 2 6 28 24 21 30 22 26 22 12 230 12 250 94 -5 2.7 5.4