2026 Compare Cities Climate:
Castro Valley, CA vs Ketchum, ID

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Highlights
- Ketchum has 35.2% less rainy days than Castro Valley.
- Ketchum has 21.8% less Sunny Days than Castro Valley.
- On the BestPlaces comfort index, Ketchum scores 26.7% worse than Castro Valley
 Castro Valley, CAKetchum, IDUnited States
 Rainfall  Unlock1438
 Snowfall0  Unlock28
 Precipitation  Unlock78106
 Sunny261  Unlock205
 Avg. July High  Unlock8286
 Avg. Jan. Low42  Unlock22
 Comfort Index (higher=better)  Unlock6.37
 UV Index5.4  Unlock4.3
 Elevation  Unlock58532443
Reviews for Castro Valley    7 Reviews

CURMUDGEON - THANK YOU for your post. The most important part of your comment is your second paragraph. "Hodge-Podge" is the correct word for a lot of Castro  More

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Over 12 years ago

Kind of rural but close to Oakland and San  More

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Castro Valley is the largest unincorporated "city" in the Bay Area. Over the years, several attempts have been made to incorporate, but they have all been defeated at  More

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Reviews for Ketchum    1 Reviews

Over 11 years ago

Small town life with the mountains to enjoy all four seasons. Great restaurants and shopping available though knowing where to go helps in keeping the costs reasonable.   More

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