Seattle averages 39.34 inches of precipitation a year, with the vast majority falling as rain instead of snow. Official precipitation totals for the city are measured at Sea-Tac Airport, which is actually …

Seattle experiences significant rain/snowfall throughout the year, averaging 1009 mm of precipitation annually. However, this abundant rainfall is not evenly distributed, with a distinct dry season during …

In an average year, at least 0.01 inches (0.25 mm) of precipitation falls on 150 days, more than nearly all U.S. cities east of the Rocky Mountains. In November, Seattle averages more rainfall than any other …

Jul 31, 2024 · Remarkably, despite being in a region known for its rainfall, the city observes just under nine days of rainfall on average per month, with the highest frequency in November at 9.1 days and …

Jan 7, 2025 · Graphical Climatology of Seattle: Daily Temperatures and Rainfall, by Year (1945 – Present) The following is a graphical climatology of Seattle, Washington (Seattle-Tacoma Int’l …

This page gives detailed information on the annual temperature, precipitation, sun, humidity, wind and storm averages for Seattle. The weather measurements are averages based on climate data …

Analyze Seattle's precipitation patterns and trends from 1978 to present. View monthly and yearly rainfall data, historical precipitation records, and climate change effects on Seattle's weather patterns.

Monthly temperature, precipitation and hours of sunshine. A climate graph showing rainfall, temperatures and normals.

Aug 12, 2013 · Seattle experiences extreme seasonal variation in monthly rainfall. Rain falls throughout the year in Seattle. The month with the most rain in Seattle is November, with an average rainfall of …

This page shows the average precipitation (including snowfall) in each month of the year in Seattle, Washington. It is based on NOAA data for the years 1991–2020.