Get the monthly weather forecast for Seattle, WA, including daily high low, historical averages, to help you plan ahead.
Seattle records a steady low temperature average of 37.4°F (3°C) during March. The average relative humidity in March is 82%. In Seattle, in March, during 8.9 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, there are 84.2 rainfall days, and 5.2" (132mm) of precipitation is accumulated.
Check accurate weather in March in Seattle (WA). Expect Seattle March temperature around 12°C (53°F). Read clothing tips & recommended activities.
March Weather in Seattle Washington, United States Daily high temperatures increase by 4°F, from 53°F to 57°F, rarely falling below 46°F or exceeding 66°F. Daily low temperatures increase by 2°F, from 40°F to 43°F, rarely falling below 32°F or exceeding 49°F.
March marks the beginning of spring in Seattle, with temperatures ranging from 39°F to 54°F (4°C to 12°C). Days continue to lengthen, with around 12 hours of daylight. While rain showers are still common, they begin to decrease, with an average of 3 inches (76 mm) of precipitation.
This page gives detailed information on the typical March temperature, precipitation, sun, humidity, wind and storms for Seattle. The weather measurements are averages based on climate data gathered at Seattle — Tacoma International Airport, located south of the city center.
The chart illustrates March temperature patterns in Seattle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
The average daily temperature expected in Seattle in this month is 12°C (54°F), dropping to an average temperature of 3°C (37°F). Seattle sees up to 5 hours of sunshine per day throughout the month.
These charts show the evolution of average minimum maximum temperatures as well as average daily precipitation volume in Seattle in march. In march in Seattle, the climate is wet (with 2.8in of rainfall over 5 days).
This page contains a list of the average monthly high and low temperatures in Seattle, Washington for the month of March each year between 1894 and 2025. It is based on NOAA data. What Was the Hottest March Ever in Seattle? 1941 was the warmest March in the history of Seattle, Washington.
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