Snohomish County (Everett)
December
Weather in Snohomish County for December 2025
Your guide to Snohomish County weather in December - trends and predictions
In general, the average temperature in Snohomish County at the beginning of December is 7.6 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 6.3 °F by the end of December.
Snohomish County in December brings notable rainfall, with an average of 19 rainy days and a total precipitation of 325.1 mm.
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Temperatures
Rain 🌧️
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12
Dry days
19
Rainy days
0
Snow days
8°/4°
Temperatures
13 km/h
Avg max wind
83 %
Avg humidity
Snohomish County Weather December
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  6° | 2 6° | 3  5° | 4 7° | 5  7° | 6 12° | |
| 7  10° | 8  7° | 9 6° | 10 3° | 11  8° | 12  7° | 13 8° |
| 14 8° | 15 6° | 16  4° | 17 7° | 18  11° | 19 10° | 20 12° |
| 21 11° | 22 9° | 23  9° | 24 8° | 25 6° | 26 8° | 27 8° |
| 28 8° | 29 5° | 30 4° | 31 5° |
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Temperatures trend during December in Snohomish County
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 | Fog | 6° /3° | 0 mm | 2 | |
| Dec. 2 | Mist | 6° /-1° | 0 mm | 2 | |
| Dec. 3 | Cloudy | 5° /0° | 0 mm | 1 | |
| Dec. 4 | Cloudy | 7° /-1° | 0 mm | 2 | |
| Dec. 5 | Overcast | 7° /4° | 0 mm | 2 | |
| Dec. 6 | Overcast | 12° /9° | 0 mm | 3 | |
| Dec. 7 | Heavy rain | 10° /5° | 100.5 mm | 3 | |
| Dec. 8 | Thundery outbreaks possible | 7° /5° | 14.2 mm | 2 | |
| Dec. 9 | Cloudy | 6° /2° | 0 mm | 2 | |
| Dec. 10 | Mist | 3° /0° | 0 mm | 1 | |
| Dec. 11 | Partly cloudy | 8° /3° | 0 mm | 3 | |
| Dec. 12 | Moderate rain at times | 7° /5° | 5.1 mm | 2 | |
| Dec. 13 | Moderate rain at times | 8° /5° | 9.1 mm | 2 | |
| Dec. 14 | Overcast | 8° /5° | 12.5 mm | 2 | |
| Dec. 15 | Overcast | 6° /4° | 8.5 mm | 2 | |
| Dec. 16 | Moderate rain | 4° /2° | 11.9 mm | 1 | |
| Dec. 17 | Cloudy | 7° /2° | 4.1 mm | 2 | |
| Dec. 18 | Moderate or heavy rain with thunder | 11° /6° | 30.6 mm | 3 | |
| Dec. 19 | Moderate rain at times | 10° /6° | 6.7 mm | 3 | |
| Dec. 20 | Overcast | 12° /9° | 0 mm | 3 | |
| Dec. 21 | Moderate or heavy rain shower | 11° /8° | 10.2 mm | 3 | |
| Dec. 22 | Moderate or heavy rain shower | 9° /7° | 11.4 mm | 2 | |
| Dec. 23 | Light rain | 9° /7° | 3.5 mm | 2 | |
| Dec. 24 | Overcast | 8° /5° | 0 mm | 2 | |
| Dec. 25 | Moderate or heavy rain shower | 6° /5° | 6.9 mm | 2 | |
| Dec. 26 | Moderate rain | 8° /5° | 48.9 mm | 2 | |
| Dec. 27 | Moderate or heavy rain shower | 8° /6° | 18 mm | 2 | |
| Dec. 28 | Overcast | 8° /5° | 8.7 mm | 2 | |
| Dec. 29 | Moderate or heavy rain shower | 5° /4° | 11.8 mm | 2 | |
| Dec. 30 | Mist | 4° /3° | 2.5 mm | 1 | |
| Dec. 31 | Mist | 5° /2° | 0 mm | 2 | |
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Important Notice
Our weather forecast for Snohomish County 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 Snohomish County forecast closer to your planned date for the most up-to-date weather information.
Snohomish County in December - FAQ
What are the expected maximum and minimum temperatures in Snohomish County during December?
Prepare for cooler days with highs just around 8° and colder nights, dipping below 4°.
How much rainfall should be expected in Snohomish County during December?
Significant rainfall exceeding 325.1 mm is expected in Snohomish County during December, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Snohomish County in December 2025?
Snohomish County typically sees 0 cm of snowfall during December.
What are the typical wind conditions in Snohomish County during December?
The average wind speed in Snohomish County during December is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Snohomish County
Explore the daily rainfall trends and prepare for Snohomish Countys December weather 💧
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Where is Snohomish County?Get accurate weather forecasts for Snohomish County, located at latitude 47.979 and longitude -122.202. Stay updated with localized weather information tailored for Snohomish County.
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