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Weather in Juneau, Alaska for December 2025

Your guide to Juneau weather in December - trends and predictions

    Snow Forecast ❄️

  • Juneau is transformed into a snow paradise in December, with more than 20 snowy days on average.
    According to Juneau snow forecast for December 2025, 5 snowy days are expected in the next 2 weeks. The closest date with snow is Sunday, December 14.

    • Temperatures

  • Until now, December 2025 in Juneau has been significantly cooler than historical averages by -5.2 °F, with average temperature of -7.8 °F.

  • An exceptional deviation from the historical average is forecasted for next days of December 2025 in Juneau with the forecasted temperature being -18.9 °F, much lower than usual.

  • In general, the average temperature in Juneau at the beginning of December is -0.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of -8.9 °F by the end of December.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
0
Dry days
Average rainy days
1
Rainy days
Average snowy days
30
Snow days
Average temperatures
-2°/-6°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
90 %
Avg humidity

Juneau Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Heavy snow
-3°
2
Patchy light snow
-2°
3
Moderate snow
-0°
4
Heavy snow
1°
5
Moderate or heavy snow with thunder
2°
6
Moderate or heavy snow showers
2°
7
Moderate or heavy snow showers
-2°
8
Moderate or heavy snow with thunder
-5°
9
Heavy snow
-7°
10
Moderate or heavy snow showers
-7°
11
Heavy snow
-6°
12
Heavy snow
-5°
13
Moderate or heavy snow with thunder
-5°
14
Heavy snow
-14°
15
Heavy snow
-15°
16
Heavy snow
-16°
17
Partly cloudy
-19°
18
Partly cloudy
-19°
19
Partly cloudy
-22°
20
Sunny
-21°
21
Sunny
-24°
22
Sunny
-24°
23
Sunny
-24°
24
Sunny
-20°
25
Sunny
-17°
26
Light freezing rain
-12°
27
Overcast
-18°
28
Heavy snow
-2°
29
Heavy snow
-3°
30
Light freezing rain
-4°
31
Light snow
-6°

Temperatures trend during December in Juneau

See the weather trend as well as the moving average line

December weather in Juneau day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Heavy snow
Heavy snow
 -3° /-8° 22.3 mm 14.7 cm
Dec. 2 Patchy light snow
Patchy light snow
 -2° /-6° 18 mm 8.7 cm
Dec. 3 Moderate snow
Moderate snow
 0° /-3° 17.6 mm 3.5 cm
Dec. 4 Heavy snow
Heavy snow
 1° /-1° 15.1 mm 5.2 cm
Dec. 5 Moderate or heavy snow with thunder
Moderate or heavy snow with thunder
 2° /-2° 28 mm 12.6 cm
Dec. 6 Moderate or heavy snow showers
Moderate or heavy snow showers
 2° /-1° 24.6 mm 12.5 cm
Dec. 7 Moderate or heavy snow showers
Moderate or heavy snow showers
 -2° /-7° 9.4 mm 7.3 cm
Dec. 8 Moderate or heavy snow with thunder
Moderate or heavy snow with thunder
 -5° /-10° 10.5 mm 8.8 cm
Dec. 9 Heavy snow
Heavy snow
 -7° /-12° 6.5 mm 5.5 cm
Dec. 10 Moderate or heavy snow showers
Moderate or heavy snow showers
 -7° /-11° 5 mm 2.3 cm
Dec. 11 Heavy snow
Heavy snow
 -6° /-10° 9.9 mm 6.2 cm
Dec. 12 Heavy snow
Heavy snow
 -5° /-9° 23.9 mm 19.8 cm
Dec. 13 Moderate or heavy snow with thunder
Moderate or heavy snow with thunder
 -5° /-11° 9.3 mm 7.7 cm
Dec. 14 Heavy snow
Heavy snow
 -14° /-16° 20 mm 14.5 cm
Dec. 15 Heavy snow
Heavy snow
 -15° /-16° 15.5 mm 11.1 cm
Dec. 16 Heavy snow
Heavy snow
 -16° /-18° 6.2 mm 4.5 cm
Dec. 17 Partly cloudy
Partly cloudy
 -19° /-24° 0 mm 0 cm
Dec. 18 Partly cloudy
Partly cloudy
 -19° /-23° 0 mm 0 cm
Dec. 19 Partly cloudy
Partly cloudy
 -22° /-24° 0 mm 0 cm
Dec. 20 Sunny
Sunny
 -21° /-26° 0 mm 0 cm
Dec. 21 Sunny
Sunny
 -24° /-26° 0 mm 0 cm
Dec. 22 Sunny
Sunny
 -24° /-27° 0 mm 0 cm
Dec. 23 Sunny
Sunny
 -24° /-26° 0 mm 0 cm
Dec. 24 Sunny
Sunny
 -20° /-23° 0 mm 0 cm
Dec. 25 Sunny
Sunny
 -17° /-22° 0 mm 0 cm
Dec. 26 Light freezing rain
Light freezing rain
 -12° /-16° 0.1 mm 0.1 cm
Dec. 27 Overcast
Overcast
 -18° /-21° 0 mm 0 cm
Dec. 28 Heavy snow
Heavy snow
 -2° /-7° 8.2 mm 6 cm
Dec. 29 Heavy snow
Heavy snow
 -3° /-7° 10.1 mm 2.1 cm
Dec. 30 Light freezing rain
Light freezing rain
 -4° /-7° 13.5 mm 0 cm
Dec. 31 Light snow
Light snow
 -6° /-10° 0.5 mm 0.4 cm
Next
Important Notice
Our weather forecast for Juneau 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 Juneau forecast closer to your planned date for the most up-to-date weather information.
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Juneau in December - FAQ

What are the expected maximum and minimum temperatures in Juneau 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 Juneau during December?
Significant rainfall exceeding 413.2 mm is expected in Juneau during December, occurring over more than 1 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Juneau in December 2025?
Juneau experiences an average snowfall of 260.91 cm during December, occurring over 30 days.
What are the typical wind conditions in Juneau during December?
The average wind speed in Juneau during December is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

Juneau snow forecast December 2025

Track daily snowfall levels and discover Juneau’s snowy potential this December ❄️
On average, Juneau sees 30 snowy days during December, with approximately 260.9 cm of total snowfall.

December rainfall patterns in Juneau

Explore the daily rainfall trends and prepare for Juneaus December weather 💧
Typically, Juneau has 1 rainy days in December with a total of 413.2 mm of rainfall.

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Get accurate weather forecasts for Juneau, located at latitude 58.302 and longitude -134.42. Stay updated with localized weather information tailored for Juneau.

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