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Snohomish County (Everett)
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United States weather

Weather in Snohomish County, Washington for December 2026

Your guide to Snohomish County weather in December - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Snohomish County during December is quite rare, with fewer than 2 snowy days on average.

    • Rain 🌧️

  • Snohomish County in December brings notable rainfall, with an average of 19 rainy days and a total precipitation of 393.1 mm.

    • More

  • Is December a good time to visit Snohomish County? check out the best time to travel to Snohomish County page.

  • ✨ Is December a good time to visit Snohomish County? – Ask the AI Weatherman

Average dry days
11
Dry days
Average rainy days
19
Rainy days
Average snowy days
1
Snow days
Average temperatures
8°/4°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
84 %
Avg humidity

Snohomish County Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Fog
6°
2
Mist
6°
3
Cloudy
5°
4
Heavy rain
7°
5
Moderate rain
8°
6
Overcast
11°
7
Heavy rain
10°
8
Thundery outbreaks possible
9°
9
Moderate rain
8°
10
Heavy rain
7°
11
Light rain
10°
12
Light rain
9°
13
Light rain
10°
14
Light rain
10°
15
Light rain
9°
16
Moderate rain
7°
17
Moderate rain
8°
18
Moderate or heavy rain with thunder
9°
19
Moderate rain at times
7°
20
Light rain
9°
21
Moderate rain
8°
22
Moderate rain
8°
23
Light rain
8°
24
Moderate rain
9°
25
Moderate or heavy rain shower
7°
26
Heavy rain
7°
27
Moderate rain
6°
28
Light rain
6°
29
Moderate or heavy rain shower
5°
30
Patchy rain possible
6°
31
Mist
7°

Temperatures trend during December in Snohomish County

See the weather trend as well as the moving average line

December weather in Snohomish County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Fog
Fog
 6° /3° 0 mm 0 cm
Dec. 2 Mist
Mist
 6° /2° 0 mm 0 cm
Dec. 3 Cloudy
Cloudy
 5° /2° 0 mm 0 cm
Dec. 4 Heavy rain
Heavy rain
 7° /1° 25.6 mm 0 cm
Dec. 5 Moderate rain
Moderate rain
 8° /5° 14.3 mm 0 cm
Dec. 6 Overcast
Overcast
 11° /8° 0 mm 0 cm
Dec. 7 Heavy rain
Heavy rain
 10° /6° 53 mm 0 cm
Dec. 8 Thundery outbreaks possible
Thundery outbreaks possible
 9° /7° 46.5 mm 0 cm
Dec. 9 Moderate rain
Moderate rain
 8° /5° 15.6 mm 0 cm
Dec. 10 Heavy rain
Heavy rain
 7° /4° 25.1 mm 0 cm
Dec. 11 Light rain
Light rain
 10° /5° 7.8 mm 0 cm
Dec. 12 Light rain
Light rain
 9° /7° 2.5 mm 0 cm
Dec. 13 Light rain
Light rain
 10° /7° 4.6 mm 0 cm
Dec. 14 Light rain
Light rain
 10° /7° 8 mm 0 cm
Dec. 15 Light rain
Light rain
 9° /6° 7.6 mm 0 cm
Dec. 16 Moderate rain
Moderate rain
 7° /5° 9.7 mm 0 cm
Dec. 17 Moderate rain
Moderate rain
 8° /3° 13.4 mm 0 cm
Dec. 18 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 9° /5° 22.1 mm 0 cm
Dec. 19 Moderate rain at times
Moderate rain at times
 7° /4° 9.2 mm 0 cm
Dec. 20 Light rain
Light rain
 9° /7° 9.1 mm 0 cm
Dec. 21 Moderate rain
Moderate rain
 8° /6° 21.3 mm 0 cm
Dec. 22 Moderate rain
Moderate rain
 8° /6° 10.1 mm 0 cm
Dec. 23 Light rain
Light rain
 8° /5° 1.7 mm 0 cm
Dec. 24 Moderate rain
Moderate rain
 9° /5° 12.6 mm 0 cm
Dec. 25 Moderate or heavy rain shower
Moderate or heavy rain shower
 7° /5° 5.9 mm 0 cm
Dec. 26 Heavy rain
Heavy rain
 7° /4° 42.2 mm 2.1 cm
Dec. 27 Moderate rain
Moderate rain
 6° /4° 13.6 mm 3.3 cm
Dec. 28 Light rain
Light rain
 6° /3° 4.3 mm 0 cm
Dec. 29 Moderate or heavy rain shower
Moderate or heavy rain shower
 5° /3° 5.9 mm 0 cm
Dec. 30 Patchy rain possible
Patchy rain possible
 6° /3° 1.3 mm 0 cm
Dec. 31 Mist
Mist
 7° /3° 0 mm 0 cm
Next
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.
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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 393.1 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 2026?
Snohomish County typically sees 5.4 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 14 km/h, suggesting breezy to windy conditions, depending on your activities.

Snohomish County snow forecast December 2026

Track daily snowfall levels and discover Snohomish County’s snowy potential this December ❄️
On average, Snohomish County sees 1 snowy days during December, with approximately 5.4 cm of total snowfall.

December rainfall patterns in Snohomish County

Explore the daily rainfall trends and prepare for Snohomish Countys December weather 💧
Typically, Snohomish County has 19 rainy days in December with a total of 393.1 mm of rainfall.
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Everett
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