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Seattle (WA) Precipitation: Average Monthly Rainfall and Snowfall

This graph shows the average amount of rainfall per month in Seattle (Washington State). The numbers are calculated over a 30-year period to provide a reliable average.

  • A lot of rain (rainy season) falls in the months: January, March, November and December.
  • Seattle has dry periods in July and August.
  • On average, November is the wettest month with 166 mm of precipitation.
  • On average, July is the driest month with 14 mm of precipitation.
  • The average amount of annual precipitation is 1009 mm.

Current rainfall in Seattle (WA)

Thu   Nov 21
10°C | 4°C
E 11 km/h
1.1 mm
broken clouds and rain

broken clouds and rain

Fri   Nov 22
13°C | 7°C
S 22 km/h
9.1 mm
partly cloudy and rain

partly cloudy and rain

Sat   Nov 23
9°C | 5°C
SW 18 km/h
4.3 mm
broken clouds and rain

broken clouds and rain

Interested in more climate information?

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