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January Rainfall Precipitation in Washington State

Washington State is a region in the United States of America. In January precipitation ranges from low in Ephrata with 22 mm of snow/rainfall to heavy in Mount Rainier National Park with 512 mm of snowfall. January is a winter month in Washington State.

Where and how much does it rain in Washington State in January?

Find the average total precipitation in January for the most popular destinations in Washington State on the map below. Click on a destination dot for more detailed information.

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Legend heavy rainfall high moderate low almost none
Heavy rainfall has been defined as more than 160 mm precipitation. High: 90 mm to 160 mm. Moderate: 30 mm to 90 mm. Low: 5 mm to 30 mm.

  • How much rainfall does Washington State receive in January?
  • In January, Seattle typically experiences high rainfall, averaging about 141 mm. This translates to a mix of wet and dry days throughout the month.

  • What is the wettest city in January in Washington State?
  • Our data indicates that Mount Rainier National Park holds the record for the most average rainfall with 512 mm.

  • What is the driest city in January in Washington State?
  • The driest place is Ephrata with an average precipitation of 22 mm according to our data.

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