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Weather in Snohomish County for January 2026

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

    Temperatures

  • In general, the average temperature in Snohomish County at the beginning of January is 6.3 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 4.1 °F by the end of January.

  • Rain 🌧️

  • Snohomish County experiences moderate rainfall in January, with an average of 8 rainy days and a total precipitation of 136.8 mm.

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Average dry days
23
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
5°/1°
Temperatures
Average wind speed
7 km/h
Avg max wind
Average humidity
83 %
Avg humidity

Snohomish County Weather January

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Temperatures trend during January in Snohomish County

See the weather trend as well as the moving average line

January weather day by day

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Date Weather Temperatures Rain UV More
Jan. 1 Moderate or heavy sleet
Moderate or heavy sleet
4° /1° 22.8 mm 1
Jan. 2 Moderate or heavy rain shower
Moderate or heavy rain shower
4° /2° 10.2 mm 1
Jan. 3 Heavy rain at times
Heavy rain at times
7° /5° 23.3 mm 2
Jan. 4 Heavy rain at times
Heavy rain at times
7° /6° 18.2 mm 2
Jan. 5 Mist
Mist
8° /7° 13.2 mm 2
Jan. 6 Fog
Fog
7° /3° 0 mm 2
Jan. 7 Sunny
Sunny
7° /1° 0 mm 3
Jan. 8 Overcast
Overcast
7° /2° 0 mm 2
Jan. 9 Mist
Mist
9° /0° 0 mm 2
Jan. 10 Moderate or heavy rain shower
Moderate or heavy rain shower
7° /4° 30.2 mm 2
Jan. 11 Mist
Mist
5° /4° 0 mm 2
Jan. 12 Fog
Fog
4° /2° 0 mm 1
Jan. 13 Mist
Mist
3° /0° 0 mm 1
Jan. 14 Cloudy
Cloudy
4° /2° 0 mm 1
Jan. 15 Mist
Mist
5° /0° 0 mm 2
Jan. 16 Mist
Mist
4° /2° 0 mm 1
Jan. 17 Overcast
Overcast
4° /0° 0 mm 1
Jan. 18 Mist
Mist
2° /-2° 0 mm 1
Jan. 19 Sunny
Sunny
7° /0° 0 mm 3
Jan. 20 Partly cloudy
Partly cloudy
4° /0° 0 mm 2
Jan. 21 Cloudy
Cloudy
4° /1° 0 mm 1
Jan. 22 Sunny
Sunny
6° /0° 0 mm 3
Jan. 23 Overcast
Overcast
4° /1° 0 mm 1
Jan. 24 Fog
Fog
2° /0° 0 mm 1
Jan. 25 Sunny
Sunny
6° /0° 0 mm 3
Jan. 26 Sunny
Sunny
4° /0° 0 mm 2
Jan. 27 Cloudy
Cloudy
2° /-1° 0 mm 1
Jan. 28 Mist
Mist
4° /0° 0 mm 1
Jan. 29 Cloudy
Cloudy
4° /-1° 0 mm 1
Jan. 30 Mist
Mist
3° /3° 3.5 mm 1
Jan. 31 Moderate rain
Moderate rain
6° /2° 15.3 mm 2
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Important Notice
Our weather forecast for Snohomish County in January 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 January - FAQ

What are the expected maximum and minimum temperatures in Snohomish County during January?
During January, expect a variety of temperatures with highs around 5° and lows near 1°, suitable for diverse activities and preferences.
How much rainfall should be expected in Snohomish County during January?
Significant rainfall exceeding 136.8 mm is expected in Snohomish County during January, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Snohomish County in January 2026?
Snohomish County typically sees 0 cm of snowfall during January.
What are the typical wind conditions in Snohomish County during January?
The average wind speed in Snohomish County during January is 7 km/h, suggesting breezy to windy conditions, depending on your activities.

January rainfall patterns in Snohomish County

Explore the daily rainfall trends and prepare for Snohomish Countys January weather 💧
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Location coordinates 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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