2026 Compare Cities Climate:
Columbia, SC vs Castro Valley, CA

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Highlights
- Castro Valley has 53.2% less rainy days than Columbia.
- Castro Valley has 20.3% more Sunny Days than Columbia.
- On the BestPlaces comfort index, Castro Valley scores 19.4% better than Columbia
 Columbia, SCCastro Valley, CAUnited States
 Rainfall  Unlock2138
 Snowfall1  Unlock28
 Precipitation  Unlock66106
 Sunny217  Unlock205
 Avg. July High  Unlock7686
 Avg. Jan. Low35  Unlock22
 Comfort Index (higher=better)  Unlock8.67
 UV Index4.9  Unlock4.3
 Elevation  Unlock1612443
Reviews for Columbia    50 Reviews

Over 3 years ago

I love living in Columbia! I recently graduated from USC and plan to stay. I read the reviews posted here and it shows that like many cities, your experience will depend  More

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Loved living in Columbia, SC prior to my job transfer. It's the perfect size - plenty to do, but still a laid back place. People are extremely friendly, there are  More

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Columbia is such a unique and underrated place. It has a lot of character and history, and good nature trails. Everything feels accessible (by car) and you can get from  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 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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