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Castro Valley, California

Will Castro Valley Unified have a snow day?

Chance of a snow day

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Delay or closing

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How much snow it takes here

Alameda County averages 0.1 inches of snow a year, and its average winter temperature is 50°F (NOAA 1991–2020 normals). Schools in places like this typically close at less than an inch of snow, sooner if there is ice or the snow falls during the morning commute. Even a light glaze of ice can shut schools down in an area that rarely sees snow.

Where to check for an official closing

Only Castro Valley Unified can close its schools. Districts usually post closings and delays on their website and social media, send texts, emails or robocalls to families, and report them to local TV and radio stations, often by 5:30 or 6 a.m. The district office's number is (510)537-3000.

District facts

Students9,207
Schools16
Teachers400
GradesKindergarten to 12
Area typeSuburb
CountyAlameda County, CA
District office4400 Alma Ave., Castro Valley
Phone(510)537-3000

From the U.S. Department of Education's Common Core of Data (2022–23 school year).

Nearby districts

Forecast details: National Weather Service MTR office, point forecast for Castro Valley. How we calculate the chance.