Orillia
December
Weather in Orillia for December 2025
Your guide to Orillia weather in December - trends and predictions
The climate of Orillia in December is quite snowy, averaging 14 snowy days.
In general, the average temperature in Orillia at the beginning of December is 0.3 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 2.6 °C by the end of December.
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Snow Forecast ❄️
Temperatures
More
9
Dry days
8
Rainy days
14
Snow days
2°/-1°
Temperatures
20 km/h
Avg max wind
85 %
Avg humidity
Orillia 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  -2° | |
| 7 1° | 8 3° | 9  5° | 10 4° | 11  1° | 12  2° | 13 -1° |
| 14 1° | 15  4° | 16  4° | 17 5° | 18 3° | 19 -1° | 20 -0° |
| 21 -3° | 22 -3° | 23 1° | 24 1° | 25 1° | 26 2° | 27  3° |
| 28 3° | 29 4° | 30  4° | 31 1° |
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Temperatures trend during December in Orillia
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. | Moderate snow | 1° /-3° | 3 mm | 2.3 cm | |
| 2 Dec. | Light sleet | 1° /-2° | 1.7 mm | 0 cm | |
| 3 Dec. | Heavy snow | 1° /-2° | 7.1 mm | 5.5 cm | |
| 4 Dec. | Overcast | 0° /-3° | 13.9 mm | 6.3 cm | |
| 5 Dec. | Mist | 0° /-8° | 8.4 mm | 4.4 cm | |
| 6 Dec. | Patchy light snow | -2° /-8° | 4.7 mm | 3.4 cm | |
| 7 Dec. | Heavy snow | 1° /-6° | 2.1 mm | 1.6 cm | |
| 8 Dec. | Fog | 3° /-2° | 8 mm | 5.8 cm | |
| 9 Dec. | Light drizzle | 5° /0° | 5 mm | 1.4 cm | |
| 10 Dec. | Moderate snow | 4° /0° | 3 mm | 1.9 cm | |
| 11 Dec. | Moderate or heavy snow showers | 1° /-2° | 0.3 mm | 0.2 cm | |
| 12 Dec. | Light snow showers | 2° /-3° | 12.6 mm | 8.9 cm | |
| 13 Dec. | Moderate or heavy snow showers | -1° /-5° | 8 mm | 5.5 cm | |
| 14 Dec. | Overcast | 1° /-5° | 0 mm | 0 cm | |
| 15 Dec. | Partly cloudy | 4° /0° | 0 mm | 0 cm | |
| 16 Dec. | Patchy rain possible | 4° /1° | 5.1 mm | 0 cm | |
| 17 Dec. | Light rain | 5° /2° | 6.6 mm | 0 cm | |
| 18 Dec. | Light snow showers | 3° /-2° | 10.2 mm | 7 cm | |
| 19 Dec. | Overcast | -1° /-6° | 0.9 mm | 0 cm | |
| 20 Dec. | Overcast | 0° /-3° | 0 mm | 0 cm | |
| 21 Dec. | Partly cloudy | -3° /-8° | 0 mm | 0 cm | |
| 22 Dec. | Overcast | -3° /-11° | 0 mm | 0 cm | |
| 23 Dec. | Light rain | 1° /-4° | 19.3 mm | 11.7 cm | |
| 24 Dec. | Fog | 1° /-3° | 9.5 mm | 6.8 cm | |
| 25 Dec. | Fog | 1° /-3° | 0.1 mm | 0 cm | |
| 26 Dec. | Light rain | 2° /-1° | 1.8 mm | 0 cm | |
| 27 Dec. | Moderate rain | 3° /1° | 13.2 mm | 0 cm | |
| 28 Dec. | Light drizzle | 3° /1° | 1.4 mm | 0 cm | |
| 29 Dec. | Light drizzle | 4° /2° | 21.3 mm | 0 cm | |
| 30 Dec. | Sunny | 4° /0° | 6.9 mm | 1.4 cm | |
| 31 Dec. | Moderate snow | 1° /-1° | 3.3 mm | 1.1 cm | |
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Important Notice
Our weather forecast for Orillia 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 Orillia forecast closer to your planned date for the most up-to-date weather information.
Orillia in December - FAQ
What are the expected maximum and minimum temperatures in Orillia 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 Orillia during December?
Significant rainfall exceeding 120.9 mm is expected in Orillia during December, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Orillia in December 2025?
Orillia experiences an average snowfall of 37.645 cm during December, occurring over 14 days.
What are the typical wind conditions in Orillia during December?
The average wind speed in Orillia during December is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
Orillia snow forecast December 2025
Track daily snowfall levels and discover Orillia’s snowy potential this December ❄️
December rainfall patterns in Orillia
Explore the daily rainfall trends and prepare for Orillias December weather 💧
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