Alliston
December
Weather in Alliston for December 2025
Your guide to Alliston weather in December - trends and predictions
The climate of Alliston in December is quite snowy, averaging 13 snowy days.
In general, the average temperature in Alliston at the beginning of December is 0.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 2.4 °C by the end of December.
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Snow Forecast ❄️
Temperatures
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11
Dry days
7
Rainy days
13
Snow days
2°/-1°
Temperatures
19 km/h
Avg max wind
86 %
Avg humidity
Alliston in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  1° | 2  1° | 3 1° | 4  0° | 5  0° | 6  -1° | |
| 7 1° | 8 3° | 9  6° | 10  5° | 11  0° | 12  1° | 13 -1° |
| 14 1° | 15  3° | 16 3° | 17  5° | 18 3° | 19  -1° | 20 -0° |
| 21 -3° | 22 -3° | 23  0° | 24 1° | 25 1° | 26 2° | 27  3° |
| 28 3° | 29 4° | 30  3° | 31 1° |
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Temperatures trend during December in Alliston
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. | Heavy snow | 1° /-1° | 4.4 mm | 3.5 cm | |
| 2 Dec. | Light sleet | 1° /-1° | 7.3 mm | 3.2 cm | |
| 3 Dec. | Heavy snow | 1° /-2° | 7.3 mm | 4.7 cm | |
| 4 Dec. | Overcast | 0° /-2° | 0 mm | 0 cm | |
| 5 Dec. | Mist | 0° /-6° | 2.9 mm | 0.9 cm | |
| 6 Dec. | Patchy light snow | -1° /-6° | 9.3 mm | 6.7 cm | |
| 7 Dec. | Heavy snow | 1° /-4° | 1.7 mm | 1.4 cm | |
| 8 Dec. | Overcast | 3° /-2° | 2.1 mm | 0.6 cm | |
| 9 Dec. | Thundery outbreaks possible | 6° /0° | 2.3 mm | 0.7 cm | |
| 10 Dec. | Moderate snow | 5° /0° | 3.3 mm | 2 cm | |
| 11 Dec. | Moderate or heavy snow showers | 0° /-2° | 1.6 mm | 1.3 cm | |
| 12 Dec. | Light snow showers | 1° /-3° | 14 mm | 10.1 cm | |
| 13 Dec. | Patchy light snow | -1° /-5° | 0.2 mm | 0 cm | |
| 14 Dec. | Overcast | 1° /-6° | 0 mm | 0 cm | |
| 15 Dec. | Partly cloudy | 3° /0° | 1.9 mm | 0.6 cm | |
| 16 Dec. | Mist | 3° /1° | 0.9 mm | 0 cm | |
| 17 Dec. | Light drizzle | 5° /1° | 2.7 mm | 0 cm | |
| 18 Dec. | Light snow showers | 3° /-2° | 12 mm | 7 cm | |
| 19 Dec. | Cloudy | -1° /-5° | 0.9 mm | 0 cm | |
| 20 Dec. | Overcast | 0° /-3° | 0 mm | 0 cm | |
| 21 Dec. | Cloudy | -3° /-7° | 0 mm | 0 cm | |
| 22 Dec. | Overcast | -3° /-10° | 0 mm | 0 cm | |
| 23 Dec. | Light freezing rain | 0° /-4° | 10.4 mm | 5.6 cm | |
| 24 Dec. | Fog | 1° /-3° | 8.7 mm | 6.3 cm | |
| 25 Dec. | Fog | 1° /-2° | 0 mm | 0 cm | |
| 26 Dec. | Light drizzle | 2° /-1° | 0.7 mm | 0 cm | |
| 27 Dec. | Moderate rain | 3° /1° | 13.7 mm | 0 cm | |
| 28 Dec. | Light drizzle | 3° /1° | 0.9 mm | 0 cm | |
| 29 Dec. | Light drizzle | 4° /2° | 20.5 mm | 0 cm | |
| 30 Dec. | Sunny | 3° /-1° | 6.5 mm | 1.4 cm | |
| 31 Dec. | Moderate snow | 1° /-1° | 2.5 mm | 1.9 cm | |
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Important Notice
Our weather forecast for Alliston 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 Alliston forecast closer to your planned date for the most up-to-date weather information.
Alliston in December - FAQ
What are the expected maximum and minimum temperatures in Alliston 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 Alliston during December?
Moderate rainfall is anticipated in Alliston during December, with a total of 95 mm spread over approximately 7 days. Considering plans for rainy days is advisable.
Will it snow in Alliston in December 2025?
Alliston experiences an average snowfall of 26.88 cm during December, occurring over 13 days.
What are the typical wind conditions in Alliston during December?
The average wind speed in Alliston during December is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
Alliston snow forecast December 2025
Track daily snowfall levels and discover Alliston’s snowy potential this December ❄️
December rainfall patterns in Alliston
Explore the daily rainfall trends and prepare for Allistons December weather 💧
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