39 cities · avg annual temperature 6.9°C
| City | Population | Avg temp | Since 1900 |
|---|---|---|---|
| Toronto | 2,600,000 | 8.2°C | +2.2° |
| London | 346,765 | 7.7°C | +2.1° |
| Ottawa | 812,129 | 5.6°C | +2.5° |
| Mississauga | 668,549 | 7.6°C | +2.2° |
| North York | 636,000 | 7.0°C | +2.2° |
| Scarborough | 600,000 | 7.0°C | +2.2° |
| Hamilton | 519,949 | 7.6°C | +2.2° |
| Brampton | 433,806 | 6.8°C | +2.2° |
| Etobicoke | 347,948 | 7.6°C | +2.2° |
| Windsor | 278,013 | 9.2°C | +2.2° |
| Markham | 261,573 | 7.0°C | +2.2° |
| Oshawa | 247,989 | 7.3°C | +2.2° |
| Vaughan | 238,866 | 7.0°C | +2.2° |
| Kitchener | 233,700 | 6.7°C | +2.2° |
| Richmond Hill | 185,541 | 7.0°C | +2.2° |
| Barrie | 182,041 | 6.1°C | +2.3° |
| Oakville | 165,697 | 8.3°C | +2.1° |
| Burlington | 164,415 | 7.6°C | +2.2° |
| Greater Sudbury | 157,857 | 4.0°C | +2.4° |
| St. Catharines | 131,989 | 8.7°C | +2.1° |
| Cambridge | 120,372 | 6.9°C | +2.2° |
| Guelph | 115,760 | 6.2°C | +2.2° |
| East York | 115,365 | 8.2°C | +2.2° |
| Kingston | 114,195 | 7.3°C | +2.3° |
| Thunder Bay | 99,334 | 2.2°C | +2.5° |
| Waterloo | 97,475 | 6.7°C | +2.2° |
| Ajax | 90,167 | 7.2°C | +2.2° |
| Pickering | 87,838 | 7.2°C | +2.2° |
| Brantford | 87,759 | 7.6°C | +2.1° |
| Milton | 84,362 | 6.8°C | +2.2° |
| Sarnia | 82,998 | 8.4°C | +2.2° |
| Niagara Falls | 82,000 | 8.7°C | +2.1° |
| Willowdale | 79,440 | 7.0°C | +2.2° |
| Peterborough | 75,877 | 5.9°C | +2.3° |
| Sault Ste. Marie | 74,948 | 3.9°C | +2.3° |
| Newmarket | 74,295 | 6.4°C | +2.3° |
| Norfolk County | 60,847 | 7.9°C | +2.1° |
| Welland | 50,331 | 8.6°C | +2.1° |
| North Bay | 50,170 | 3.7°C | +2.5° |