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

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Highlights
- Castro Valley has 18.3% more rainy days than Cupertino.
- Castro Valley has 1.5% less Sunny Days than Cupertino.
- On the BestPlaces comfort index, Castro Valley scores 1.1% worse than Cupertino
 Cupertino, CACastro Valley, CAUnited States
 Rainfall  Unlock2138
 Snowfall0  Unlock28
 Precipitation  Unlock66106
 Sunny265  Unlock205
 Avg. July High  Unlock7686
 Avg. Jan. Low41  Unlock22
 Comfort Index (higher=better)  Unlock8.67
 UV Index5.1  Unlock4.3
 Elevation  Unlock1612443
Reviews for Cupertino    7 Reviews

I love this city. Cupertino has everything to offer. We have the best schools, weather, health care, and everything is close by. Absolutely everything is here.   More

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Over 3 years ago

I’ve lived here for 24 years. Cupertino is totally convenient. Literally library, parks, grocery stores, all shopping, bakery’s, restaurants, all within walking  More

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I look at the pros and cons listed here about Cupertino and I just laugh. I’ve lived here for 21 years. Here’s what I can tell you.The pros:-The weather is good year  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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