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Saint-Mathias-sur-Richelieu, Quebec has a continental climate, with cold winters and warm summers.
In the winter (December to February), the average temperature is -8.3°C (17.1°F), with temperatures dipping as low as -25°C (-13°F). Snowfall is common, with an average of 98.7 cm (38.9 in) of snow per year.
In the spring (March to May), the temperatures start to warm up, averaging 6.7°C (44.1°F) in March and 13.4°C (56.2°F) in May. Rainfall is more common than snowfall, with an average of 83.1 cm (32.7 in) of rain per year.
In the summer (June to August), temperatures stay warm, averaging 22.2°C (72°F) in June and 25.9°C (78.6°F) in August. There is an average of 87.5 cm (34.4 in) of rain per year, with occasional thunderstorms.
In the fall (September to November), temperatures start to cool off, averaging 13.4°C (56.2°F) in September and 6.5°C (43.7°F) in November. Rainfall is more common than snowfall, with an average of 89.4 cm (35.2 in) of rain per year.
As of 2020, the city population is 4618.
This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Saint-Mathias-sur-Richelieu, Quebec.