Washington
December
Weather in Washington for December 2025
Your guide to Washington weather in December - trends and predictions
With an average of 3 snowy days, Washington usually enjoys a light touch of snow in December.
In general, the average temperature in Washington at the beginning of December is 10.1 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 9.4 °F by the end of December.
The climate of Washington in December is notably wet, with an average of 14 rainy days, and a total of 141.6 mm of precipitation.
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14
Dry days
14
Rainy days
3
Snow days
9°/2°
Temperatures
15 km/h
Avg max wind
68 %
Avg humidity
Washington in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  9° | 2  12° | 3 13° | 4  10° | 5 8° | 6  10° | |
| 7 9° | 8 12° | 9 9° | 10 12° | 11 12° | 12 9° | 13  10° |
| 14 7° | 15 8° | 16 9° | 17 10° | 18 9° | 19 7° | 20 6° |
| 21 7° | 22 8° | 23 7° | 24 7° | 25 9° | 26 6° | 27 7° |
| 28 10° | 29 11° | 30 11° | 31  12° |
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Temperatures trend during December in Washington
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 |
|---|---|---|---|---|---|
| Dec. 1 | Overcast | 9° /1° | 0.3 mm | 0 cm | |
| Dec. 2 | Sunny | 12° /3° | 0.1 mm | 0 cm | |
| Dec. 3 | Sunny | 13° /4° | 5.9 mm | 0 cm | |
| Dec. 4 | Partly cloudy | 10° /2° | 0 mm | 0 cm | |
| Dec. 5 | Overcast | 8° /0° | 0 mm | 0 cm | |
| Dec. 6 | Moderate rain at times | 10° /2° | 4.1 mm | 0 cm | |
| Dec. 7 | Overcast | 9° /2° | 0.3 mm | 0 cm | |
| Dec. 8 | Overcast | 12° /3° | 0.3 mm | 0 cm | |
| Dec. 9 | Overcast | 9° /1° | 4.5 mm | 0 cm | |
| Dec. 10 | Overcast | 12° /4° | 7.8 mm | 0 cm | |
| Dec. 11 | Overcast | 12° /4° | 25.7 mm | 0 cm | |
| Dec. 12 | Overcast | 9° /2° | 0 mm | 0 cm | |
| Dec. 13 | Cloudy | 10° /1° | 0.1 mm | 0 cm | |
| Dec. 14 | Overcast | 7° /0° | 7.5 mm | 0 cm | |
| Dec. 15 | Overcast | 8° /0° | 8.9 mm | 1 cm | |
| Dec. 16 | Overcast | 9° /3° | 8.9 mm | 0 cm | |
| Dec. 17 | Overcast | 10° /4° | 11.1 mm | 2 cm | |
| Dec. 18 | Overcast | 9° /2° | 4.9 mm | 0 cm | |
| Dec. 19 | Sunny | 7° /0° | 0.7 mm | 0 cm | |
| Dec. 20 | Sunny | 6° /-1° | 0.2 mm | 0 cm | |
| Dec. 21 | Partly cloudy | 7° /-1° | 0.3 mm | 0 cm | |
| Dec. 22 | Overcast | 8° /-1° | 6.3 mm | 0.1 cm | |
| Dec. 23 | Overcast | 7° /-4° | 0.6 mm | 0 cm | |
| Dec. 24 | Overcast | 7° /-1° | 7.1 mm | 0.2 cm | |
| Dec. 25 | Partly cloudy | 9° /0° | 3.9 mm | 0 cm | |
| Dec. 26 | Sunny | 6° /0° | 0.7 mm | 0 cm | |
| Dec. 27 | Partly cloudy | 7° /2° | 9.7 mm | 0 cm | |
| Dec. 28 | Partly cloudy | 10° /3° | 2.5 mm | 0 cm | |
| Dec. 29 | Sunny | 11° /3° | 1.9 mm | 0 cm | |
| Dec. 30 | Partly cloudy | 11° /4° | 5.4 mm | 0 cm | |
| Dec. 31 | Patchy rain possible | 12° /4° | 2.9 mm | 0 cm | |
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Important Notice
Our weather forecast for Washington 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 Washington forecast closer to your planned date for the most up-to-date weather information.
Washington in December - FAQ
What are the expected maximum and minimum temperatures in Washington during December?
Prepare for cooler days with highs just around 9° and colder nights, dipping below 2°.
How much rainfall should be expected in Washington during December?
Significant rainfall exceeding 141.6 mm is expected in Washington during December, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Washington in December 2025?
Washington experiences an average snowfall of 3.8 cm during December, occurring over 3 days.
What are the typical wind conditions in Washington during December?
The average wind speed in Washington during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
Washington snow forecast December 2025
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December rainfall patterns in Washington
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