Hottest Canadian Cities in Summer
Southeastern Ontario is Canada's warmest region in summer. All but one of the country's eight major cities with daily average summer temperatures above 19 °C (66.2 °F) are in that province.
| City | Daily Average °C |
|---|---|
| Windsor | 21.5 |
| St. Catharines – Niagara | 20.5 |
| Montreal | 19.6 |
| Ottawa – Gatineau | 19.6 |
| Hamilton | 19.5 |
| Toronto | 19.5 |
| London | 19.3 |
| Oshawa | 19.0 |
Canadian cities with the highest daytime temperatures also tend to keep warm at night. Windsor clearly tops the list as having Canada's warmest weather throughout summer. It is the only large city with temperatures that, on average, rise above 26 °C (78.8 °F) each day, and don't go below 16 °C (60.8 °F) at night.
Listed below are the typical high and low temperatures for a summer's day in the country's hottest cities.
| City | Maximum °C |
Minimum °C |
|---|---|---|
| Windsor | 26.6 | 16.2 |
| St. Catharines – Niagara | 25.8 | 15.1 |
| Toronto | 25.4 | 13.6 |
| London | 25.1 | 13.5 |
| Ottawa – Gatineau | 25.1 | 14.1 |
| Hamilton | 25.0 | 14.0 |
| Montreal | 24.9 | 14.2 |
| Oshawa | 23.6 | 14.4 |
Where it Never Gets Cold
Some major cities in the country have never dropped down to freezing during summer. Notably, Vancouver, with it's balmy climate, has not reached temperatures below 6 °C (42.8 °F) during July or August.
| City | Lowest °C | Date |
|---|---|---|
| Vancouver | 3.9 | June 1, 1976 |
| Windsor | 2.8 | June 5, 1945 |
| Victoria | 2.1 | June 3, 1991 |
| St. Catharines – Niagara | 1.7 | June 11, 1972 |
| Abbotsford | 1.1 | June 3, 1976 |
| Hamilton | 1.1 | June 6, 1998 |
| Oshawa | 1.1 | June 11, 1972 |
