2025 Compare Cities Climate:
Walnut Creek, CA vs Mercer Island, WA

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Highlights
- Mercer Island has 100.0% more rainy days than Walnut Creek.
- Mercer Island has 40.5% less Sunny Days than Walnut Creek.
- On the BestPlaces comfort index, Mercer Island scores 11.8% worse than Walnut Creek
 Walnut Creek, CAMercer Island, WAUnited States
 Rainfall  Unlock3938
 Snowfall0  Unlock28
 Precipitation  Unlock153106
 Sunny262  Unlock205
 Avg. July High  Unlock7686
 Avg. Jan. Low40  Unlock22
 Comfort Index (higher=better)  Unlock7.57
 UV Index5.4  Unlock4.3
 Elevation  Unlock3352443
Reviews for Walnut Creek    16 Reviews

Apart from the congestion, Walnut Creek is one of the best places in the San Francisco Bay Area to live. It is one of the most compact/walkable cities in the entire area  More

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Over 7 years ago

Almost all of Walnut Creek water comes from Pardee dam through an enclosed pipeline. That water is direct from the high Sierras. Among the best water quality in the  More

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Over 7 years ago

I grew up in Southern California and am no stranger to a more inland California climate. Before moving to WC I lived in San Francisco for 15 years where it is obviously  More

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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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