January Rainfall and Precipitation in Washington State
Washington State Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Washington State - and find the best time to visit. See also: Washington State weather by month.
Best Places to Visit in Washington State in January
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Washington State.
Monthly precipitation
0 mm (0 in) dry → 150 mm (5.9 in) wet
Marker color shows total monthly precipitation in January: pale blue is dry, deep blue is wet.
Washington State precipitation in January: frequently asked questions
How much rainfall does Washington State, the United States of America receive in January?
Seattle often experiences a notable amount of rain in January, with an average of about 141 mm (5.6 in). The city's weather is known to change unexpectedly because of these showers.
How many days does it rain in Washington State, the United States of America in January?
Expect around 19 days rainy days in Seattle during January.
Is January part of the rainy season in Washington State, the United States of America?
Not really. January is outside the wettest stretch of the year in Washington State, the United States of America.
What is the wettest city in January in Washington State, the United States of America?
Looking at our data, Mount Rainier National Park tops the wettest-cities list in Washington State, the United States of America for January, with monthly snowfall averaging 512 mm (20 in).
What is the driest city in January in Washington State, the United States of America?
Ephrata is the driest city we have data for in Washington State, the United States of America in January, with monthly snow/rainfall close to 22 mm (0.9 in).
Interested in more climate information?
We have much more information about the climate in Washington State.
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