2026 Compare Cities Climate:
Alexandria, VA vs Castro Valley, CA

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Highlights
- Castro Valley has 50.5% less rainy days than Alexandria.
- Castro Valley has 29.9% more Sunny Days than Alexandria.
- On the BestPlaces comfort index, Castro Valley scores 17.8% better than Alexandria
 Alexandria, VACastro Valley, CAUnited States
 Rainfall  Unlock2138
 Snowfall14  Unlock28
 Precipitation  Unlock66106
 Sunny201  Unlock205
 Avg. July High  Unlock7686
 Avg. Jan. Low27  Unlock22
 Comfort Index (higher=better)  Unlock8.67
 UV Index4.1  Unlock4.3
 Elevation  Unlock1612443
Reviews for Alexandria    49 Reviews

Old Town Alexandria is a charming port city, with lovely historic homes, fun restaurants and sweet shops. Its easy proximity to the hustle and bustle of DC offer  More

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Alexandria is different depending on what part of it you are in. There is a huge strata of rich and poor, with a few middle class neighborhoods in between. Old town is  More

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The mailing address in this area is Alexandria, or Engleside. Either way, it's SE Fairfax County between Fort Belvoir and Mount Vernon. The neighborhood has been here  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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