Average monthly snow and rainfall in Seattle (Washington State) in inches
This is the mean monthly precipitation over the year, including rain, snow, hail etc.
Show average precipitation in Seattle in Millimeter »
- A lot of rain (rainy season) falls in the months: January, February, March, April, May, October, November and December.
- On average, January is the wettest month with 9.8 inches (248 mm) of precipitation.
- On average, July is the driest month with 1.2 inches (31 mm) of precipitation.
- The average amount of annual precipitation is: 68.5 inches (1739 mm)