New Brunswick (Fredericton)
December
Weather in New Brunswick for December 2025
Your guide to New Brunswick weather in December - trends and predictions
New Brunswick typically experiences moderate snowfall in December, with an average of 10 snowy days.
According to New Brunswick snow forecast for December 2025, 8 snowy days are expected in the next 2 weeks. The closest date with snow is Sunday, 14 December.Until now, December 2025 in New Brunswick is cooler than usual, with temperatures averaging -0.3 °C, this is -2.3 °C below the typical seasonal average.
The forecast for the next days in New Brunswick predicts a temperature of -3.9 °C, which is cooler than the historical average.
In general, the average temperature in New Brunswick at the beginning of December is 1.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of -3.3 °C by the end of December.
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Snow Forecast ❄️
Temperatures
More
15
Dry days
6
Rainy days
10
Snow days
2°/-4°
Temperatures
18 km/h
Avg max wind
74 %
Avg humidity
New Brunswick Weather December
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What’s the Weather Like in New Brunswick This December?
Discover the average temperatures and weather trends across New Brunswick’s cities this December.
Temperatures trend during December in New Brunswick
See the weather trend as well as the moving average line
December weather in New Brunswick day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. |  Overcast | 6° /-2° | 6.5 mm | 0 cm | |
| 2 Dec. |  Light sleet | 1° /-3° | 7.8 mm | 4.6 cm | |
| 3 Dec. |  Moderate snow | 1° /-4° | 16.7 mm | 8.5 cm | |
| 4 Dec. |  Heavy snow | 1° /-5° | 3.3 mm | 2.8 cm | |
| 5 Dec. |  Light snow | 0° /-7° | 18.9 mm | 0.7 cm | |
| 6 Dec. |  Partly cloudy | 0° /-9° | 0 mm | 0 cm | |
| 7 Dec. | Overcast | -1° /-8° | 0 mm | 0 cm | |
| 8 Dec. |  Sunny | -3° /-9° | 8.7 mm | 6.3 cm | |
| 9 Dec. |  Cloudy | -1° /-10° | 0 mm | 0 cm | |
| 10 Dec. | Moderate snow | 5° /-5° | 7.8 mm | 2.4 cm | |
| 11 Dec. |  Light rain shower | 11° /-1° | 31 mm | 0 cm | |
| 12 Dec. | Sunny | 3° /-4° | 4.8 mm | 0 cm | |
| 13 Dec. |  Moderate or heavy snow showers | 0° /-6° | 0.1 mm | 0 cm | |
| 14 Dec. |  Light freezing rain | -3° /-10° | 0.2 mm | 0 cm | |
| 15 Dec. | Partly cloudy | -4° /-8° | 0 mm | 0 cm | |
| 16 Dec. | Cloudy | -2° /-9° | 0 mm | 0 cm | |
| 17 Dec. | Light freezing rain | 3° /-8° | 0.1 mm | 0 cm | |
| 18 Dec. | Light freezing rain | -3° /-6° | 0.2 mm | 0.1 cm | |
| 19 Dec. | Patchy rain possible | 6° /-3° | 1.8 mm | 0.4 cm | |
| 20 Dec. | Light freezing rain | -4° /-6° | 0.3 mm | 0.2 cm | |
| 21 Dec. |  Light drizzle | 3° /-4° | 5.1 mm | 3 cm | |
| 22 Dec. | Partly cloudy | -7° /-11° | 0 mm | 0 cm | |
| 23 Dec. | Heavy snow | 0° /-12° | 5 mm | 1.9 cm | |
| 24 Dec. |  Blowing snow | -10° /-21° | 0.2 mm | 0 cm | |
| 25 Dec. | Sunny | -13° /-20° | 0 mm | 0 cm | |
| 26 Dec. | Light freezing rain | -11° /-16° | 0.4 mm | 0.3 cm | |
| 27 Dec. | Moderate snow | -9° /-15° | 1.1 mm | 0.8 cm | |
| 28 Dec. | Light freezing rain | 1° /-4° | 2.1 mm | 0 cm | |
| 29 Dec. | Moderate snow | 1° /-2° | 0.8 mm | 0.6 cm | |
| 30 Dec. | Heavy snow | 5° /1° | 7.7 mm | 1.9 cm | |
| 31 Dec. | Light freezing rain | 3° /-1° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for New Brunswick 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 New Brunswick forecast closer to your planned date for the most up-to-date weather information.
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New Brunswick in December - FAQ
What are the expected maximum and minimum temperatures in New Brunswick 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 New Brunswick during December?
Significant rainfall exceeding 170.8 mm is expected in New Brunswick during December, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
Will it snow in New Brunswick in December 2025?
New Brunswick experiences an average snowfall of 33.51 cm during December, occurring over 10 days.
What are the typical wind conditions in New Brunswick during December?
The average wind speed in New Brunswick during December is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
New Brunswick snow forecast December 2025
Track daily snowfall levels and discover New Brunswick’s snowy potential this December ❄️
On average, New Brunswick sees 10 snowy days during December, with approximately 33.5 cm of total snowfall.
December rainfall patterns in New Brunswick
Explore the daily rainfall trends and prepare for New Brunswicks December weather 💧
Typically, New Brunswick has 6 rainy days in December with a total of 170.8 mm of rainfall.
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