King County (Seattle)
March
Weather in King County for March 2025
Your guide to King County weather in March - trends and predictions
With an average of 4 snowy days, King County usually enjoys a light touch of snow in March.
In general, the average temperature in King County at the beginning of March is 8.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 12.3 °F by the end of March.
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Snow Forecast ❄️
Temperatures
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5
Dry days
22
Rainy days
4
Snow days
11°/3°
Temperatures
12 km/h
Avg max wind
77 %
Avg humidity
King County in March average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  8° | 2  7° | |||||
| 3  8° | 4  8° | 5 9° | 6  10° | 7 9° | 8 9° | 9 11° |
| 10 8° | 11 11° | 12 13° | 13 11° | 14 10° | 15 12° | 16 13° |
| 17 15° | 18 15° | 19 14° | 20 12° | 21 9° | 22 12° | 23 11° |
| 24 11° | 25 11° | 26 12° | 27 14° | 28 12° | 29 13° | 30 12° |
| 31 12° |
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Temperatures trend during March in King County
See the weather trend as well as the moving average line
March weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Mar. 1 | Overcast | 8° /2° | 3.4 mm | 1.3 cm | |
| Mar. 2 | Patchy rain possible | 7° /1° | 2.1 mm | 0 cm | |
| Mar. 3 | Partly cloudy | 8° /1° | 3.3 mm | 0.2 cm | |
| Mar. 4 | Heavy rain at times | 8° /1° | 2.6 mm | 0.2 cm | |
| Mar. 5 | Heavy rain at times | 9° /1° | 3.6 mm | 0 cm | |
| Mar. 6 | Moderate rain at times | 10° /0° | 0.5 mm | 0 cm | |
| Mar. 7 | Moderate rain at times | 9° /1° | 1.5 mm | 0 cm | |
| Mar. 8 | Overcast | 9° /1° | 0.8 mm | 0 cm | |
| Mar. 9 | Patchy rain possible | 11° /1° | 2.3 mm | 0 cm | |
| Mar. 10 | Patchy rain possible | 8° /1° | 4.5 mm | 0 cm | |
| Mar. 11 | Partly cloudy | 11° /1° | 3.2 mm | 0 cm | |
| Mar. 12 | Partly cloudy | 13° /2° | 3.3 mm | 0 cm | |
| Mar. 13 | Patchy rain possible | 11° /3° | 8.9 mm | 0 cm | |
| Mar. 14 | Heavy rain at times | 10° /2° | 8.4 mm | 0 cm | |
| Mar. 15 | Patchy rain possible | 12° /2° | 2.2 mm | 0 cm | |
| Mar. 16 | Partly cloudy | 13° /2° | 0.4 mm | 0 cm | |
| Mar. 17 | Overcast | 15° /3° | 1 mm | 0 cm | |
| Mar. 18 | Moderate or heavy rain shower | 15° /4° | 1.9 mm | 0 cm | |
| Mar. 19 | Moderate rain at times | 14° /4° | 5.1 mm | 0 cm | |
| Mar. 20 | Moderate rain at times | 12° /4° | 5.4 mm | 0 cm | |
| Mar. 21 | Moderate rain at times | 9° /4° | 6.9 mm | 0 cm | |
| Mar. 22 | Moderate rain at times | 12° /4° | 6.9 mm | 0 cm | |
| Mar. 23 | Light rain shower | 11° /4° | 7.4 mm | 0 cm | |
| Mar. 24 | Light rain shower | 11° /3° | 7.5 mm | 1.7 cm | |
| Mar. 25 | Patchy rain possible | 11° /4° | 1.5 mm | 0 cm | |
| Mar. 26 | Overcast | 12° /4° | 1.4 mm | 0.1 cm | |
| Mar. 27 | Overcast | 14° /3° | 3.7 mm | 0 cm | |
| Mar. 28 | Moderate or heavy rain shower | 12° /4° | 4.8 mm | 0 cm | |
| Mar. 29 | Partly cloudy | 13° /2° | 0.2 mm | 0 cm | |
| Mar. 30 | Overcast | 12° /3° | 2.7 mm | 0 cm | |
| Mar. 31 | Overcast | 12° /3° | 0.8 mm | 0 cm | |
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Important Notice
Our weather forecast for King County in March 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 King County forecast closer to your planned date for the most up-to-date weather information.
King County in March - FAQ
What are the expected maximum and minimum temperatures in King County during March?
Prepare for cooler days with highs just around 11° and colder nights, dipping below 3°.
How much rainfall should be expected in King County during March?
Significant rainfall exceeding 108.2 mm is expected in King County during March, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
Will it snow in King County in March 2025?
King County experiences an average snowfall of 3.51 cm during March, occurring over 4 days.
What are the typical wind conditions in King County during March?
The average wind speed in King County during March is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
King County snow forecast March 2025
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March rainfall patterns in King County
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Where is King County?Get accurate weather forecasts for King County, located at latitude 47.606 and longitude -122.332. Stay updated with localized weather information tailored for King County.
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