2025 Compare Cities Climate:
Mercer Island, WA vs Potomac, MD

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Highlights
- Potomac has 7.1% more rainy days than Mercer Island.
- Potomac has 28.8% more Sunny Days than Mercer Island.
- On the BestPlaces comfort index, Potomac scores 2.7% worse than Mercer Island
 Mercer Island, WAPotomac, MDUnited States
 Rainfall  Unlock4238
 Snowfall5  Unlock28
 Precipitation  Unlock114106
 Sunny156  Unlock205
 Avg. July High  Unlock8686
 Avg. Jan. Low37  Unlock22
 Comfort Index (higher=better)  Unlock7.37
 UV Index2.6  Unlock4.3
 Elevation  Unlock3612443
Reviews for Mercer Island    4 Reviews

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  More

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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  More

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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  More

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Reviews for Potomac    2 Reviews

Over 17 years ago

Spring and Fall can be quite glorious when the leaves turn or the tulips pop out and the humidity is lower. Winter, while it has some splendid "snow days," goes on much  More

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Over 17 years ago

The Potomac area in Montgomery County, Maryland, has the best of everything. High schools rated in the top 5 in the State, easy access to the Nation's Capitol,  More

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