Thunder Bay District (Thunder Bay)
December
Weather in Thunder Bay District for December 2025
Your guide to Thunder Bay District weather in December - trends and predictions
Thunder Bay District typically experiences moderate snowfall in December, with an average of 8 snowy days.
In general, the average temperature in Thunder Bay District at the beginning of December is -0.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 1.1 °C by the end of December.
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Snow Forecast ❄️
Temperatures
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16
Dry days
7
Rainy days
8
Snow days
1°/-5°
Temperatures
19 km/h
Avg max wind
77 %
Avg humidity
Thunder Bay District in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  1° | 2  -2° | 3  -1° | 4 -1° | 5  -2° | 6 -1° | |
| 7 1° | 8  2° | 9 1° | 10 -3° | 11 -4° | 12 -7° | 13 -5° |
| 14 3° | 15  4° | 16  3° | 17 1° | 18  -4° | 19 -4° | 20 -4° |
| 21 -4° | 22  0° | 23 0° | 24 3° | 25  3° | 26 1° | 27 2° |
| 28 2° | 29 1° | 30 -0° | 31 -1° |
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Temperatures trend during December in Thunder Bay District
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. | Partly cloudy | 1° /-7° | 0 mm | 0 cm | |
| 2 Dec. | Overcast | -2° /-8° | 0 mm | 0 cm | |
| 3 Dec. | Light snow showers | -1° /-6° | 5.7 mm | 1 cm | |
| 4 Dec. | Overcast | -1° /-7° | 6.9 mm | 5 cm | |
| 5 Dec. | Light snow | -2° /-7° | 0.2 mm | 0.1 cm | |
| 6 Dec. | Light snow | -1° /-7° | 0.9 mm | 0 cm | |
| 7 Dec. | Overcast | 1° /-6° | 5.9 mm | 3.3 cm | |
| 8 Dec. | Fog | 2° /-2° | 7.4 mm | 5.3 cm | |
| 9 Dec. | Light snow | 1° /-5° | 30 mm | 0 cm | |
| 10 Dec. | Partly cloudy | -3° /-9° | 0 mm | 0 cm | |
| 11 Dec. | Overcast | -4° /-16° | 0 mm | 0 cm | |
| 12 Dec. | Light snow | -7° /-15° | 0 mm | 0 cm | |
| 13 Dec. | Partly cloudy | -5° /-13° | 0 mm | 0 cm | |
| 14 Dec. | Overcast | 3° /-6° | 0 mm | 0 cm | |
| 15 Dec. | Light rain | 4° /-1° | 2.2 mm | 0 cm | |
| 16 Dec. | Moderate snow | 3° /-1° | 0.9 mm | 0.1 cm | |
| 17 Dec. | Light snow | 1° /-4° | 0.2 mm | 0.1 cm | |
| 18 Dec. | Cloudy | -4° /-11° | 0 mm | 0 cm | |
| 19 Dec. | Overcast | -4° /-12° | 0 mm | 0 cm | |
| 20 Dec. | Overcast | -4° /-10° | 0 mm | 0 cm | |
| 21 Dec. | Light snow | -4° /-11° | 0.1 mm | 0.1 cm | |
| 22 Dec. | Light freezing rain | 0° /-5° | 0 mm | 0 cm | |
| 23 Dec. | Fog | 0° /-3° | 0.1 mm | 0 cm | |
| 24 Dec. | Fog | 3° /-4° | 1.7 mm | 0 cm | |
| 25 Dec. | Light sleet | 3° /-2° | 5.1 mm | 0 cm | |
| 26 Dec. | Light freezing rain | 1° /-1° | 3.4 mm | 0 cm | |
| 27 Dec. | Light freezing rain | 2° /0° | 0.1 mm | 0 cm | |
| 28 Dec. | Cloudy | 2° /0° | 24 mm | 0 cm | |
| 29 Dec. | Partly cloudy | 1° /-1° | 0 mm | 0 cm | |
| 30 Dec. | Cloudy | 0° /-3° | 0 mm | 0 cm | |
| 31 Dec. | Moderate snow | -1° /-5° | 0.2 mm | 0.1 cm | |
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Important Notice
Our weather forecast for Thunder Bay District 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 Thunder Bay District forecast closer to your planned date for the most up-to-date weather information.
Thunder Bay District in December - FAQ
What are the expected maximum and minimum temperatures in Thunder Bay District 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 Thunder Bay District during December?
Moderate rainfall is anticipated in Thunder Bay District during December, with a total of 85.4 mm spread over approximately 7 days. Considering plans for rainy days is advisable.
Will it snow in Thunder Bay District in December 2025?
Thunder Bay District experiences an average snowfall of 15.535 cm during December, occurring over 8 days.
What are the typical wind conditions in Thunder Bay District during December?
The average wind speed in Thunder Bay District during December is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
Thunder Bay District snow forecast December 2025
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December rainfall patterns in Thunder Bay District
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Where is Thunder Bay District?Get accurate weather forecasts for Thunder Bay District, located at latitude 48.382 and longitude -89.25. Stay updated with localized weather information tailored for Thunder Bay District.
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