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Climate in Mercer Island, Washington

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Climate
ClimateMercer Island, WAUnited States
Rainfall (in.)35.936.5
Snowfall (in.)1125
Precipitation Days155100
Sunny Days156205
Avg. July High7586.5
Avg. Jan. Low36.720.5
Comfort Index (higher=better)7144
UV Index2.64.3
Elevation ft.131,060

Mercer Island, WA, gets 36 inches of rain per year. The US average is 37. Snowfall is 11 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 155.

On average, there are 156 sunny days per year in Mercer Island, WA. The July high is around 75 degrees. The January low is 37. Our comfort index, which is based on humidity during the hot months, is a 71 out of 100, where higher is more comfortable. The US average on the comfort index is 44.


Mercer Island Climate SperlingViews

Nice place to live with great schools: Mercer Island is a wonderful family community. It feels much more "small town" than a city even though it has a population of 20,000+. People say hello and watch out... (read more)Mercer Island - Is there a "there" there?: Mercer Island is a suburb of Seattle, located on an island in Lake Washington. The best thing about Mercer Island is its strategically central location relative to the... (read more)Mercer Island, WA - a suburb on an island: Mercer Island is a suburb of Seattle, located on an island in Lake Washington. The best thing about Mercer Island is its strategically central location relative to the... (read more)Have an opinion about Mercer Island? Leave a commentTo See All SperlingViews for Mercer Island Click Here