Châteauguay
December
Weather in Châteauguay for December 2026
Your guide to Châteauguay weather in December - trends and predictions
Expect heavy snowfall in Châteauguay during December, with an average of 19 snowy days.
In general, the average temperature in Châteauguay at the beginning of December is -0.3 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of -1.3 °C by the end of December.
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Snow Forecast ❄️
Temperatures
More
10
Dry days
2
Rainy days
19
Snow days
-1°/-6°
Temperatures
20 km/h
Avg max wind
83 %
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° /-2° | 0.6 mm | 0 cm | |
| 2 Dec. |  Light sleet | 0° /-4° | 3.4 mm | 1.6 cm | |
| 3 Dec. |  Light freezing rain | 1° /-4° | 5.9 mm | 0.4 cm | |
| 4 Dec. |  Overcast | 0° /-6° | 7.6 mm | 6.4 cm | |
| 5 Dec. | Light freezing rain | -1° /-7° | 6.9 mm | 5 cm | |
| 6 Dec. |  Freezing fog | -2° /-11° | 1.3 mm | 0.9 cm | |
| 7 Dec. | Freezing fog | -2° /-11° | 0.9 mm | 0.6 cm | |
| 8 Dec. | Freezing fog | -2° /-11° | 7.3 mm | 5.3 cm | |
| 9 Dec. | Freezing fog | -1° /-8° | 5.9 mm | 4.2 cm | |
| 10 Dec. |  Heavy rain | 2° /-3° | 36.4 mm | 11.9 cm | |
| 11 Dec. |  Heavy snow | -1° /-4° | 18.9 mm | 2.4 cm | |
| 12 Dec. | Overcast | -1° /-7° | 5.7 mm | 0.1 cm | |
| 13 Dec. |  Partly cloudy | -1° /-8° | 0.1 mm | 0 cm | |
| 14 Dec. | Partly cloudy | -2° /-9° | 0 mm | 0 cm | |
| 15 Dec. |  Cloudy | -1° /-6° | 0 mm | 0 cm | |
| 16 Dec. | Overcast | 1° /-5° | 0 mm | 0 cm | |
| 17 Dec. |  Light drizzle | 3° /-1° | 7.7 mm | 1 cm | |
| 18 Dec. |  Moderate rain | 3° /-2° | 21.9 mm | 3.5 cm | |
| 19 Dec. |  Moderate or heavy snow showers | 3° /-5° | 14.7 mm | 5.4 cm | |
| 20 Dec. |  Sunny | -2° /-6° | 0 mm | 0 cm | |
| 21 Dec. | Sunny | -1° /-7° | 1.3 mm | 1 cm | |
| 22 Dec. | Partly cloudy | -5° /-10° | 0 mm | 0 cm | |
| 23 Dec. |  Patchy moderate snow | -3° /-8° | 3.9 mm | 2.5 cm | |
| 24 Dec. | Light freezing rain | -1° /-6° | 8.8 mm | 6.2 cm | |
| 25 Dec. | Mist | -2° /-9° | 2.3 mm | 1.6 cm | |
| 26 Dec. | Overcast | -4° /-9° | 0.8 mm | 0 cm | |
| 27 Dec. | Light rain | -3° /-7° | 3.9 mm | 0 cm | |
| 28 Dec. | Light drizzle | -1° /-7° | 0.8 mm | 0 cm | |
| 29 Dec. | Light drizzle | 2° /-2° | 20.5 mm | 2 cm | |
| 30 Dec. |  Moderate snow | 1° /-4° | 5.3 mm | 0.4 cm | |
| 31 Dec. | Sunny | -2° /-5° | 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 -1° 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 192.6 mm is expected in Châteauguay during December, occurring over more than 2 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Châteauguay in December 2026?
Châteauguay experiences an average snowfall of 62.4367 cm during December, occurring over 19 days.
What are the typical wind conditions in Châteauguay during December?
The average wind speed in Châteauguay during December is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
Châteauguay snow forecast December 2026
Track daily snowfall levels and discover Châteauguay’s snowy potential this December ❄️
On average, Châteauguay sees 19 snowy days during December, with approximately 62.4 cm of total snowfall.
December rainfall patterns in Châteauguay
Explore the daily rainfall trends and prepare for Châteauguays December weather 💧
Typically, Châteauguay has 2 rainy days in December with a total of 192.6 mm of rainfall.
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