2025 Compare Cities Climate:
Newcastle, WA vs Mercer Island, WA

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Highlights
- Mercer Island has 13.8% less rainy days than Newcastle.
- Mercer Island has 2.0% more Sunny Days than Newcastle.
- On the BestPlaces comfort index, Mercer Island scores 2.7% better than Newcastle
 Newcastle, WAMercer Island, WAUnited States
 Rainfall  Unlock3938
 Snowfall6  Unlock28
 Precipitation  Unlock153106
 Sunny153  Unlock205
 Avg. July High  Unlock7686
 Avg. Jan. Low36  Unlock22
 Comfort Index (higher=better)  Unlock7.57
 UV Index2.6  Unlock4.3
 Elevation  Unlock3352443
Reviews for Newcastle    1 Reviews

Over 19 years ago

I've lived all over the world. Few other places I've lived in that have 4 distinct seasons and sports to fit all those seasons. You can ski in the winter, hike in the  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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