Châteauguay
December
Weather in Châteauguay for December 2025
Your guide to Châteauguay weather in December - trends and predictions
With an average of 2 snowy days, Châteauguay usually enjoys a light touch of snow in December.
In general, the average temperature in Châteauguay at the beginning of December is -0.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 0.7 °C by the end of December.
Châteauguay experiences moderate rainfall in December, with an average of 9 rainy days and a total precipitation of 442 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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20
Dry days
9
Rainy days
2
Snow days
2°/-7°
Temperatures
18 km/h
Avg max wind
85 %
Avg humidity
Châteauguay Weather December
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Temperatures trend during December in Châteauguay
See the weather trend as well as the moving average line
December weather in Châteauguay day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. |  Fog | 2° /0° | 0.9 mm | 0 cm | |
| 2 Dec. |  Light sleet | 1° /-2° | 1.8 mm | 0 cm | |
| 3 Dec. |  Light freezing rain | 1° /-2° | 8.1 mm | 0 cm | |
| 4 Dec. |  Moderate snow | 0° /-3° | 11.4 mm | 9.6 cm | |
| 5 Dec. | Light freezing rain | 0° /-5° | 10.3 mm | 7.5 cm | |
| 6 Dec. |  Freezing fog | -4° /-12° | 0 mm | 0 cm | |
| 7 Dec. | Freezing fog | -3° /-12° | 0 mm | 0 cm | |
| 8 Dec. | Freezing fog | 0° /-10° | 10 mm | 7.2 cm | |
| 9 Dec. | Freezing fog | 1° /-6° | 7.2 mm | 5.1 cm | |
| 10 Dec. |  Heavy rain | 3° /-1° | 40.7 mm | 7.8 cm | |
| 11 Dec. |  Heavy snow | 1° /-1° | 28.3 mm | 3.5 cm | |
| 12 Dec. |  Overcast | 2° /-4° | 8.6 mm | 0.1 cm | |
| 13 Dec. |  Partly cloudy | 0° /-6° | 0.1 mm | 0.1 cm | |
| 14 Dec. | Partly cloudy | 0° /-7° | 0 mm | 0 cm | |
| 15 Dec. |  Cloudy | 2° /-4° | 0 mm | 0 cm | |
| 16 Dec. | Overcast | 2° /-2° | 0 mm | 0 cm | |
| 17 Dec. |  Light drizzle | 4° /0° | 9.5 mm | 0 cm | |
| 18 Dec. |  Moderate rain | 4° /1° | 32.8 mm | 5.3 cm | |
| 19 Dec. |  Moderate or heavy snow showers | 2° /-5° | 11.1 mm | 8.1 cm | |
| 20 Dec. |  Sunny | -1° /-4° | 0 mm | 0 cm | |
| 21 Dec. | Sunny | -2° /-7° | 0 mm | 0 cm | |
| 22 Dec. | Partly cloudy | -5° /-10° | 0 mm | 0 cm | |
| 23 Dec. | Light freezing rain | -3° /-8° | 3.2 mm | 1.9 cm | |
| 24 Dec. | Light freezing rain | -1° /-4° | 11.8 mm | 8.4 cm | |
| 25 Dec. | Mist | -2° /-8° | 0.1 mm | 0 cm | |
| 26 Dec. | Overcast | 0° /-4° | 1.2 mm | 0 cm | |
| 27 Dec. | Light rain | -1° /-4° | 5.9 mm | 0 cm | |
| 28 Dec. | Light drizzle | 1° /-4° | 1.2 mm | 0 cm | |
| 29 Dec. | Light drizzle | 3° /1° | 8.8 mm | 0 cm | |
| 30 Dec. | Moderate snow | 3° /1° | 7.9 mm | 0.6 cm | |
| 31 Dec. | Sunny | 1° /-1° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Châteauguay in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Châteauguay forecast closer to your planned date for the most up-to-date weather information.
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Châteauguay in December - FAQ
What are the expected maximum and minimum temperatures in Châteauguay during December?
Brace for cold days with temperatures not exceeding 2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Châteauguay during December?
Significant rainfall exceeding 442 mm is expected in Châteauguay during December, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Châteauguay in December 2025?
Châteauguay experiences an average snowfall of 130.6 cm during December, occurring over 2 days.
What are the typical wind conditions in Châteauguay during December?
The average wind speed in Châteauguay during December is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
Châteauguay snow forecast December 2025
Track daily snowfall levels and discover Châteauguay’s snowy potential this December ❄️
December rainfall patterns in Châteauguay
Explore the daily rainfall trends and prepare for Châteauguays December weather 💧
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