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

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Highlights
- Greenville has 139.0% more rainy days than Castro Valley.
- Greenville has 15.7% less Sunny Days than Castro Valley.
- On the BestPlaces comfort index, Greenville scores 12.8% worse than Castro Valley
 Castro Valley, CAGreenville, SCUnited States
 Rainfall  Unlock5138
 Snowfall0  Unlock28
 Precipitation  Unlock105106
 Sunny261  Unlock205
 Avg. July High  Unlock9086
 Avg. Jan. Low42  Unlock22
 Comfort Index (higher=better)  Unlock7.57
 UV Index5.4  Unlock4.3
 Elevation  Unlock9842443
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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Reviews for Greenville    94 Reviews

My wife and I were prospecting Greenville, looking for work and a place to raise our son and grow our family. There's nothing inherently wrong with Greenville. The  More

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Over 4 years ago

Thinking of moving there from Fl. The country and the mountains are the only place to be. Country southerners are God's people. I just hope all the liberal devils get  More

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I have been reading all the negative reviews on Greenville on this site because, as a SC native, I was curious as to why it only had a 2 star average rating from over 90  More

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