Temperature in Washington State in December
Washington State is a region in the United States of America. December in has maximum daytime temperatures ranging from very low in Mount Rainier National Park with -6°C to low temperatures in Ilwaco with 9°C. Nighttime temperatures generally drop to 3°C in Ilwaco and -13°C in Mount Rainier National Park . In December, it is winter. On average, it is one of the coldest months of the year.
What is the temperature of the different cities in Washington State in December?
Discover the typical December temperatures for the most popular locations of Washington State on the map below. Detailed insights are just a click away.
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Select a Month of Interest
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Washington State's climate page.
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