Ontario (Toronto)
December
Weather in Ontario for December 2026
Your guide to Ontario weather in December - trends and predictions
Expect heavy snowfall in Ontario during December, with an average of 16 snowy days.
In general, the average temperature in Ontario at the beginning of December is 3.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 2.4 °C by the end of December.
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Snow Forecast ❄️
Temperatures
More
6
Dry days
9
Rainy days
16
Snow days
2°/-1°
Temperatures
22 km/h
Avg max wind
79 %
Avg humidity
Ontario Weather December
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What’s the Weather Like in Ontario This December?
Discover the average temperatures and weather trends across Ontario’s cities this December.
Temperatures trend during December in Ontario
See the weather trend as well as the moving average line
December weather in Ontario day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. |  Overcast | 3° /-1° | 2 mm | 0 cm | |
| 2 Dec. |  Moderate rain at times | 5° /0° | 2.7 mm | 0.4 cm | |
| 3 Dec. | Overcast | 4° /-1° | 4.8 mm | 0.5 cm | |
| 4 Dec. | Overcast | 3° /-2° | 0 mm | 0 cm | |
| 5 Dec. | Overcast | 3° /-2° | 2.7 mm | 0 cm | |
| 6 Dec. | Overcast | 4° /-1° | 2.5 mm | 0 cm | |
| 7 Dec. | Overcast | 2° /-1° | 3.5 mm | 2.6 cm | |
| 8 Dec. | Overcast | 2° /-2° | 0.2 mm | 0 cm | |
| 9 Dec. | Overcast | 4° /-1° | 9.6 mm | 0.3 cm | |
| 10 Dec. | Overcast | 5° /0° | 7.8 mm | 2.4 cm | |
| 11 Dec. | Overcast | 5° /0° | 4.7 mm | 0.2 cm | |
| 12 Dec. |  Cloudy | 3° /-2° | 1.9 mm | 0 cm | |
| 13 Dec. | Overcast | 2° /-2° | 0 mm | 0 cm | |
| 14 Dec. | Overcast | 2° /-3° | 0 mm | 0 cm | |
| 15 Dec. | Moderate or heavy rain shower | 3° /-2° | 5 mm | 0.2 cm | |
| 16 Dec. | Overcast | 5° /0° | 6.2 mm | 0 cm | |
| 17 Dec. | Overcast | 4° /0° | 0.7 mm | 0 cm | |
| 18 Dec. | Moderate or heavy rain shower | 3° /-2° | 8.2 mm | 3.1 cm | |
| 19 Dec. | Overcast | 1° /-3° | 4.4 mm | 0 cm | |
| 20 Dec. | Overcast | 2° /-3° | 1.7 mm | 1 cm | |
| 21 Dec. | Overcast | 1° /-3° | 0 mm | 0 cm | |
| 22 Dec. | Overcast | 1° /-4° | 1 mm | 0.2 cm | |
| 23 Dec. | Overcast | 3° /-3° | 7.6 mm | 3 cm | |
| 24 Dec. | Overcast | 2° /-2° | 4.4 mm | 1.5 cm | |
| 25 Dec. |  Fog | 1° /-3° | 3.9 mm | 1.6 cm | |
| 26 Dec. | Overcast | 0° /-4° | 6 mm | 0.4 cm | |
| 27 Dec. | Overcast | 1° /-3° | 3.3 mm | 0 cm | |
| 28 Dec. |  Patchy rain possible | 4° /0° | 5.4 mm | 0.1 cm | |
| 29 Dec. | Overcast | 4° /0° | 21.9 mm | 0 cm | |
| 30 Dec. | Overcast | 4° /-1° | 1.6 mm | 0.1 cm | |
| 31 Dec. | Overcast | 3° /-2° | 4.6 mm | 0.1 cm | |
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Important Notice
Our weather forecast for Ontario 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 Ontario forecast closer to your planned date for the most up-to-date weather information.
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Ontario in December - FAQ
What are the expected maximum and minimum temperatures in Ontario 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 Ontario during December?
Significant rainfall exceeding 128.4 mm is expected in Ontario during December, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Ontario in December 2026?
Ontario experiences an average snowfall of 17.6227 cm during December, occurring over 16 days.
What are the typical wind conditions in Ontario during December?
The average wind speed in Ontario during December is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
Ontario snow forecast December 2026
Track daily snowfall levels and discover Ontario’s snowy potential this December ❄️
On average, Ontario sees 16 snowy days during December, with approximately 17.6 cm of total snowfall.
December rainfall patterns in Ontario
Explore the daily rainfall trends and prepare for Ontarios December weather 💧
Typically, Ontario has 9 rainy days in December with a total of 128.4 mm of rainfall.
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