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Saint-Jérôme Weather by Month
Average temperatures, rainfall and humidity for Saint-Jérôme, Canada, month by month, built from OpenWeather's historical records. Use it to see what a typical Saint-Jérôme month looks like before you travel — then check the live Saint-Jérôme forecast for the days ahead.
Warmest month
July
27°C average high
Coolest month
January
-12°C average low
Wettest month
June
81 mm of rain
Driest month
February
17 mm of rain
Average temperature and rainfall in Saint-Jérôme by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | -4°C | -12°C | -29°C / 9°C | 31 mm | 79% | 14 km/h |
| February | -3°C | -12°C | -30°C / 14°C | 17 mm | 76% | 15 km/h |
| March | 3°C | -5°C | -28°C / 21°C | 39 mm | 70% | 15 km/h |
| April | 11°C | 2°C | -11°C / 26°C | 61 mm | 64% | 15 km/h |
| May | 20°C | 10°C | 0°C / 35°C | 76 mm | 62% | 13 km/h |
| June | 24°C | 15°C | 3°C / 35°C | 81 mm | 68% | 12 km/h |
| July | 27°C | 18°C | 10°C / 36°C | 49 mm | 71% | 12 km/h |
| August | 25°C | 16°C | 9°C / 35°C | 65 mm | 73% | 11 km/h |
| September | 22°C | 12°C | 1°C / 33°C | 45 mm | 74% | 11 km/h |
| October | 15°C | 7°C | -7°C / 30°C | 69 mm | 76% | 12 km/h |
| November | 6°C | -1°C | -18°C / 23°C | 51 mm | 77% | 14 km/h |
| December | 0°C | -7°C | -27°C / 17°C | 47 mm | 80% | 14 km/h |
Best time to visit Saint-Jérôme
The most comfortable time to visit Saint-Jérôme is generally June and August to September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around June, totalling about 629 mm a year.
Travellers who prefer heat should aim for July, when highs average 27°C. June is the month to avoid if rain would spoil your plans — it averages 81 mm, roughly 5× the rainfall of February.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Saint-Jérôme forecast for what is happening now.