January Rainfall and Precipitation in Washington State

Average rainfall, rainy days and the driest cities in Washington State, the United States of America in January.

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Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Washington State, check out our Washington State's climate page.

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.

Conditions Temperatures Precipitation
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.

See all January weather averages, cities and regions in Washington State

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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