Greater Sudbury
December
Weather in Greater Sudbury for December 2025
Your guide to Greater Sudbury weather in December - trends and predictions
Greater Sudbury typically experiences moderate snowfall in December, with an average of 10 snowy days.
In general, the average temperature in Greater Sudbury at the beginning of December is -1.4 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 1 °C by the end of December.
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Snow Forecast ❄️
Temperatures
More
18
Dry days
3
Rainy days
10
Snow days
0°/-4°
Temperatures
15 km/h
Avg max wind
81 %
Avg humidity
Greater Sudbury in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  -1° | 2 -0° | 3  -1° | 4 -1° | 5  -1° | 6 -4° | |
| 7  -2° | 8  -0° | 9  3° | 10  2° | 11  -2° | 12  -3° | 13 -4° |
| 14 0° | 15 1° | 16  1° | 17 3° | 18 2° | 19  -4° | 20 -3° |
| 21 -7° | 22 -6° | 23 -1° | 24 -1° | 25  1° | 26 1° | 27 1° |
| 28 2° | 29 3° | 30 0° | 31 -1° |
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Temperatures trend during December in Greater Sudbury
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. | Overcast | -1° /-4° | 0 mm | 0 cm | |
| 2 Dec. | Overcast | 0° /-4° | 0 mm | 0 cm | |
| 3 Dec. | Light freezing rain | -1° /-4° | 1.3 mm | 1.1 cm | |
| 4 Dec. | Overcast | -1° /-5° | 16.7 mm | 12.1 cm | |
| 5 Dec. | Partly cloudy | -1° /-8° | 3.6 mm | 2.1 cm | |
| 6 Dec. | Partly cloudy | -4° /-10° | 0 mm | 0 cm | |
| 7 Dec. | Heavy snow | -2° /-8° | 3.1 mm | 2.3 cm | |
| 8 Dec. | Freezing fog | 0° /-6° | 5.2 mm | 3.7 cm | |
| 9 Dec. | Light drizzle | 3° /-4° | 7.6 mm | 5.1 cm | |
| 10 Dec. | Light snow showers | 2° /-3° | 0.1 mm | 0.1 cm | |
| 11 Dec. | Light snow | -2° /-9° | 0.1 mm | 0 cm | |
| 12 Dec. | Moderate or heavy snow showers | -3° /-8° | 0.8 mm | 0.6 cm | |
| 13 Dec. | Light freezing rain | -4° /-9° | 0.1 mm | 0 cm | |
| 14 Dec. | Overcast | 0° /-10° | 0 mm | 0 cm | |
| 15 Dec. | Light drizzle | 1° /-4° | 0.2 mm | 0 cm | |
| 16 Dec. | Moderate snow | 1° /-2° | 2.8 mm | 0.1 cm | |
| 17 Dec. | Light drizzle | 3° /0° | 2.1 mm | 0 cm | |
| 18 Dec. | Light snow showers | 2° /-6° | 3.4 mm | 2.3 cm | |
| 19 Dec. | Cloudy | -4° /-11° | 0 mm | 0 cm | |
| 20 Dec. | Cloudy | -3° /-7° | 0 mm | 0 cm | |
| 21 Dec. | Cloudy | -7° /-13° | 0 mm | 0 cm | |
| 22 Dec. | Overcast | -6° /-13° | 0 mm | 0 cm | |
| 23 Dec. | Heavy snow | -1° /-6° | 16 mm | 12 cm | |
| 24 Dec. | Freezing fog | -1° /-5° | 0 mm | 0 cm | |
| 25 Dec. | Fog | 1° /-6° | 0 mm | 0 cm | |
| 26 Dec. | Light rain | 1° /-1° | 2 mm | 0 cm | |
| 27 Dec. | Light drizzle | 1° /-1° | 1 mm | 0 cm | |
| 28 Dec. | Overcast | 2° /-1° | 2.8 mm | 0.5 cm | |
| 29 Dec. | Light freezing rain | 3° /-1° | 0.1 mm | 0 cm | |
| 30 Dec. | Partly cloudy | 0° /-3° | 19.7 mm | 14.2 cm | |
| 31 Dec. | Overcast | -1° /-3° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Greater Sudbury 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 Greater Sudbury forecast closer to your planned date for the most up-to-date weather information.
Greater Sudbury in December - FAQ
What are the expected maximum and minimum temperatures in Greater Sudbury during December?
Brace for cold days with temperatures not exceeding 0° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Greater Sudbury during December?
Moderate rainfall is anticipated in Greater Sudbury during December, with a total of 59.5 mm spread over approximately 3 days. Considering plans for rainy days is advisable.
Will it snow in Greater Sudbury in December 2025?
Greater Sudbury experiences an average snowfall of 34.885 cm during December, occurring over 10 days.
What are the typical wind conditions in Greater Sudbury during December?
The average wind speed in Greater Sudbury during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
Greater Sudbury snow forecast December 2025
Track daily snowfall levels and discover Greater Sudbury’s snowy potential this December ❄️
December rainfall patterns in Greater Sudbury
Explore the daily rainfall trends and prepare for Greater Sudburys December weather 💧
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