2025 Compare Cities Climate:
Fountain Valley, CA vs Castro Valley, CA

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Highlights
- Castro Valley has 77.5% more rainy days than Fountain Valley.
- Castro Valley has 5.4% less Sunny Days than Fountain Valley.
- On the BestPlaces comfort index, Castro Valley scores 7.5% worse than Fountain Valley
 Fountain Valley, CACastro Valley, CAUnited States
 Rainfall  Unlock2138
 Snowfall0  Unlock28
 Precipitation  Unlock66106
 Sunny276  Unlock205
 Avg. July High  Unlock7686
 Avg. Jan. Low48  Unlock22
 Comfort Index (higher=better)  Unlock8.67
 UV Index5.9  Unlock4.3
 Elevation  Unlock1612443
Reviews for Fountain Valley    3 Reviews

We are just average home gardeners and having lived in Fountain Valley for over 40 years, my wife and I have found the climate excellent for growing nearly ever kind of  More

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Over 18 years ago

fountain valley is nice but very expensive. Average home price will run you around $700,000.Beaches are close by. People are okay but no sense of community or sense of  More

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The weather is very moderate year-around. Warm summers, comfortable spring-time, cool  More

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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 11 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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