2025 Compare Cities Climate:
St. Charles, IL vs Castro Valley, CA

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Highlights
- Castro Valley has 43.5% less rainy days than St. Charles.
- Castro Valley has 38.1% more Sunny Days than St. Charles.
- On the BestPlaces comfort index, Castro Valley scores 24.6% better than St. Charles
 St. Charles, ILCastro Valley, CAUnited States
 Rainfall  Unlock2138
 Snowfall30  Unlock28
 Precipitation  Unlock66106
 Sunny189  Unlock205
 Avg. July High  Unlock7686
 Avg. Jan. Low15  Unlock22
 Comfort Index (higher=better)  Unlock8.67
 UV Index3.5  Unlock4.3
 Elevation  Unlock1612443
Reviews for St. Charles    6 Reviews

Over 13 years ago

good  More

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Moving to Saint Charles from Kansas City was quite to sticker shock from a cost of living standpoint. I did do my homework and knew this would be the case, but it  More

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Over 16 years ago

St. Charles, Illinois is a small, trendy river town. It hosts amenities that appeal to everyone. Biking, running, walking, hiking, camping, horseback riding, kayaking,  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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