Alaska (Juneau)
December
Weather in Alaska for December 2025
Your guide to Alaska weather in December - trends and predictions
Alaska is transformed into a snow paradise in December, with more than 20 snowy days on average.
According to Alaska snow forecast for December 2025, 9 snowy days are expected until the end of the month. The closest date with snow is Monday, December 15.Until now, December 2025 in Alaska has been significantly cooler than historical averages by -5.5 °F, with average temperature of -8.3 °F.
An exceptional deviation from the historical average is forecasted for next days of December 2025 in Alaska with the forecasted temperature being -19.1 °F, much lower than usual.
In general, the average temperature in Alaska at the beginning of December is -0.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of -12.3 °F by the end of December.
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Snow Forecast ❄️
Temperatures
More
0
Dry days
1
Rainy days
30
Snow days
-2°/-6°
Temperatures
12 km/h
Avg max wind
90 %
Avg humidity
Alaska Weather December
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What’s the Weather Like in Alaska This December?
Discover the average temperatures and weather trends across Alaska’s cities this December.
Juneau-2 °F / -6 °F
Ketchikan4 °F / 1 °F
Anchorage-6 °F / -11 °FSkagway-5 °F / -10 °FFairbanks-15 °F / -23 °FSitka4 °F / 2 °FDenali National Park-15 °F / -20 °F
Glacier Bay National Park and Preserve2 °F / -1 °FWhittier-1 °F / -4 °FSeward0 °F / -3 °FWainwright-21 °F / -25 °FValdez-1 °F / -5 °FMore LocationsTemperatures trend during December in Alaska
See the weather trend as well as the moving average line
December weather in Alaska day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Heavy snow | -3° /-8° | 22.3 mm | 14.7 cm | |
| Dec. 2 |  Patchy light snow | -2° /-6° | 18 mm | 8.7 cm | |
| Dec. 3 | Moderate snow | 0° /-3° | 17.6 mm | 3.5 cm | |
| Dec. 4 | Heavy snow | 1° /-1° | 15.1 mm | 5.2 cm | |
| Dec. 5 |  Moderate or heavy snow with thunder | 2° /-2° | 28 mm | 12.6 cm | |
| Dec. 6 |  Moderate or heavy snow showers | 2° /-1° | 24.6 mm | 12.5 cm | |
| Dec. 7 | Moderate or heavy snow showers | -2° /-7° | 9.4 mm | 7.3 cm | |
| Dec. 8 | Moderate or heavy snow with thunder | -5° /-10° | 10.5 mm | 8.8 cm | |
| Dec. 9 | Heavy snow | -7° /-12° | 6.5 mm | 5.5 cm | |
| Dec. 10 | Moderate or heavy snow showers | -7° /-11° | 5 mm | 2.3 cm | |
| Dec. 11 | Heavy snow | -6° /-10° | 9.9 mm | 6.2 cm | |
| Dec. 12 | Heavy snow | -5° /-9° | 23.9 mm | 19.8 cm | |
| Dec. 13 | Moderate or heavy snow with thunder | -5° /-11° | 9.3 mm | 7.7 cm | |
| Dec. 14 | Heavy snow | -5° /-10° | 13.1 mm | 10.5 cm | |
| Dec. 15 | Heavy snow | -15° /-17° | 10.8 mm | 7.7 cm | |
| Dec. 16 | Heavy snow | -15° /-19° | 6.2 mm | 4.5 cm | |
| Dec. 17 |  Patchy moderate snow | -15° /-19° | 0.7 mm | 0.5 cm | |
| Dec. 18 |  Light freezing rain | -19° /-21° | 0.3 mm | 0.2 cm | |
| Dec. 19 |  Overcast | -21° /-24° | 0 mm | 0 cm | |
| Dec. 20 |  Sunny | -23° /-27° | 0 mm | 0 cm | |
| Dec. 21 |  Partly cloudy | -22° /-26° | 0 mm | 0 cm | |
| Dec. 22 | Sunny | -27° /-30° | 0 mm | 0 cm | |
| Dec. 23 | Light freezing rain | -24° /-27° | 0.2 mm | 0.1 cm | |
| Dec. 24 | Heavy snow | -13° /-17° | 3.7 mm | 2.7 cm | |
| Dec. 25 | Light freezing rain | -14° /-18° | 0.3 mm | 0.3 cm | |
| Dec. 26 | Partly cloudy | -19° /-21° | 0 mm | 0 cm | |
| Dec. 27 | Light freezing rain | -20° /-23° | 0.5 mm | 0.3 cm | |
| Dec. 28 | Partly cloudy | -20° /-23° | 0 mm | 0 cm | |
| Dec. 29 | Heavy snow | -3° /-7° | 10.1 mm | 2.1 cm | |
| Dec. 30 | Light freezing rain | -4° /-7° | 13.5 mm | 0 cm | |
| Dec. 31 | Light snow | -6° /-10° | 0.5 mm | 0.4 cm | |
| Next | |||||
Important Notice
Our weather forecast for Alaska 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 Alaska forecast closer to your planned date for the most up-to-date weather information.
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Alaska in December - FAQ
What are the expected maximum and minimum temperatures in Alaska 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 Alaska during December?
Significant rainfall exceeding 413.2 mm is expected in Alaska during December, occurring over more than 1 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Alaska in December 2025?
Alaska experiences an average snowfall of 260.91 cm during December, occurring over 30 days.
What are the typical wind conditions in Alaska during December?
The average wind speed in Alaska during December is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
Alaska snow forecast December 2025
Track daily snowfall levels and discover Alaska’s snowy potential this December ❄️
On average, Alaska sees 30 snowy days during December, with approximately 260.9 cm of total snowfall.
December rainfall patterns in Alaska
Explore the daily rainfall trends and prepare for Alaskas December weather 💧
Typically, Alaska has 1 rainy days in December with a total of 413.2 mm of rainfall.
Counties in Alaska
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Top locations in Alaska
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AnchorageDenali National ParkFairbanksGlacier Bay National Park and PreserveJuneauKetchikanSewardSitkaSkagwayWhittier
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