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2024 Compare Cities Climate:
Castro Valley, CA vs Sunnyvale, CA

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Highlights
- Sunnyvale has 27.7% less rainy days than Castro Valley.
- Sunnyvale has 0.4% less Sunny Days than Castro Valley.
- On the BestPlaces comfort index, Sunnyvale scores 2.3% better than Castro Valley
Climate
 Castro Valley, CASunnyvale, CAUnited States
 Rainfall211538
 Snowfall0028
 Precipitation6663106
 Sunny261260205
 Avg. July High768086
 Avg. Jan. Low424222
 Comfort Index (higher=better)8.68.87
 UV Index5.45.14.3
 Elevation1611252443

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Reviews for Castro Valley    7 Reviews
Ken · Walnut Creek, CA
2015 review of Castro Valley, CA
Over 9 years ago

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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Doug · Castro Valley, CA
Close to the big cities
Over 10 years ago

Kind of rural but close to Oakland and San  More

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Curmudgeon · Castro Valley, CA
Castro Valley Needs to Incorporate
Over 11 years ago

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 Sunnyvale    14 Reviews
Peter · Sunnyvale, CA
high tech jobs -vs- high cost housing
Over 5 years ago

At this point, I would only recommend moving to silicon valley for the job market. Sure, the weather is great and the restaurants offer huge variety. But the costs of  More

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Vefa · Sunnyvale, CA
Bad things happen to a once great city
Over 6 years ago

Like previous reviewer, tech company's tyranny over city gov and quality of living has negatively impacted a fantastic place to live. Climate, while super, is grossly  More

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Vefa · Sunnyvale, CA
Quality of life reduction
Over 6 years ago

I've lived here for 40 years. While the weather is fabulous, For the past ten years of high density housing mostly needed to house thousands of a young up coming tech  More

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ZIPS IN CASTRO VALLEY, CALIFORNIA
94546 94552
ZIPS IN SUNNYVALE, CALIFORNIA
94087 94086 94085 94089
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