2025 Compare Cities Climate:
Southborough, MA vs Castro Valley, CA

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Highlights
- Castro Valley has 56.2% less rainy days than Southborough.
- Castro Valley has 32.5% more Sunny Days than Southborough.
- On the BestPlaces comfort index, Castro Valley scores 24.6% better than Southborough
 Southborough, MACastro Valley, CAUnited States
 Rainfall  Unlock2138
 Snowfall44  Unlock28
 Precipitation  Unlock66106
 Sunny197  Unlock205
 Avg. July High  Unlock7686
 Avg. Jan. Low15  Unlock22
 Comfort Index (higher=better)  Unlock8.67
 UV Index3.3  Unlock4.3
 Elevation  Unlock1612443
Reviews for Southborough    3 Reviews

Over 5 years ago

My son has been a student at Fay School for 7 years and is now in the lower school. He is thriving at Fay academically, socially, and in the athletics program. I  More

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Over 8 years ago

As an alum of Fay, I can say that my experiences there have shaped my life forever. During the years that I spent at Fay, I became a more confident student, person and  More

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Over 8 years ago

Fay School has provided a rigorous and supportive environment. In addition to the academic challenge, students are encouraged to participate in extra-curricular  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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