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Of all the provinces in Canada, Québec is the largest, measuring 1.5 million square kilometers in size. Not surprising then are the ranges in climate throughout the province. In the northern and central portions of Quebec the winters are cold and lengthy and the summers are the opposite. In contrast, the north shore of the Gulf of St. Lawrence can be categorized as more of a Marine climate. Here, the winters are stormy and wet and summers are quite cool. Heavy snow and plenty of fog are commonplace. Southern Québec experiences more of a continental climate. Winters are chilly and the land is covered with snow. Summers are warm, with periodic episodes of hot, humid weather. The St. Lawrence Valley experiences arid, cold air masses from the north that intersect with warm, moist air from the south resulting in stormy weather.
Average Monthly Temperatures| | J | F | M | A | M | J | J | A | S | O | N | D |
|---|
| Average Monthly Temperatures (°C) – Montréal, Pierre Elliott Trudeau International Airport |
| Avg: | -10.2 | -8.4 | -2.3 | 5.7 | 13.4 | 18.2 | 20.9 | 19.6 | 14.6 | 8.1 | 1.6 | -6.3 |
| Max: | -5.7 | -3.9 | 2.2 | 10.7 | 19 | 23.6 | 26.2 | 24.8 | 19.7 | 12.7 | 5.3 | -2.2 |
| Min: | -14.2 | -12.9 | -6.7 | 0.6 | 7.7 | 12.7 | 15.6 | 14.3 | 9.4 | 3.4 | -2.1 | -10.4 |
For current weather conditions please visit
Environment Canada Weather Office.