2025 Compare Cities Climate:
American Canyon, CA vs Castro Valley, CA

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Highlights
- Castro Valley has 12.0% less rainy days than American Canyon.
- Castro Valley has 1.5% less Sunny Days than American Canyon.
- On the BestPlaces comfort index, Castro Valley scores 1.2% better than American Canyon
 American Canyon, CACastro Valley, CAUnited States
 Rainfall  Unlock2138
 Snowfall0  Unlock28
 Precipitation  Unlock66106
 Sunny265  Unlock205
 Avg. July High  Unlock7686
 Avg. Jan. Low39  Unlock22
 Comfort Index (higher=better)  Unlock8.67
 UV Index5.4  Unlock4.3
 Elevation  Unlock1612443
Reviews for American Canyon    5 Reviews

Over 3 years ago

I moved to American Canyon from Vallejo and resided there for 7 years. We recently moved only 1 exit up and slightly regret leaving when we did. It's only been 18 months  More

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Over 6 years ago

Lived here 30+ years. Great climate and schools. Easy freeway access in all directions. Laid back living with close access to great restaurants and live entertainment. A  More

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I am a long time resident, (approx. 25 years), & I initially moved out here when this was considered "out in the Boonies". Having grown up mostly in Vallejo, and  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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