Climate in Washington

Washington, Washington gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Washington averages 18 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 165 sunny days per year in Washington. The US average is 205 sunny days.

Washington gets some kind of precipitation, on average, 137 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 79 degrees
Winter Low: the January low is 31
Rain: averages 38 inches of rain a year
Snow: averages 18 inches of snow a year

SPERLING'S COMFORT INDEX

Washington ranks 74/100 for Comfort Index

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 54. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.

August is the hottest month for Washington with an average high temperature of 79.4°, which ranks it as one of the coolest states. In Washington, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Washington are July, August and September.

December has the coldest nighttime temperatures for Washington with an average of 29.4°. This is warmer than most of the U.S. states.

Washington has 11.4 days annually when the high temperature is over 90°, which is cooler than most states in the U.S.

Washington has 79.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most states in the U.S.

Washington averages 1.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most states in the U.S.

November is the wettest month in Washington with 6.0 inches of rain, and the driest month is July with 0.9 inches. The wettest season is Spring with 38% of yearly precipitation and 10% occurs in Autumn, which is the driest season. Washington's average annual rainfall of 37.6 inches indicates that it is drier than most states in the United States.

November is the rainiest month in Washington with 16.7 days of rain, and August is the driest month with only 4.6 rainy days. Washington's annual average of 137.4 days with measurable rain is one of the rainiest states in the United States. The rainiest season is Spring when it rains 33% of the time and the driest is Autumn with only a 14% chance of a rainy day.

Washington's average annual snowfall of 18.4 inches indicates that it is less snowy than most states in the United States.

December is the snowiest month in Washington with 6.4 inches of snow, and 5 months of the year have significant snowfall.

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