San Mateo, California
Will San Mateo Union High 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
San Mateo County averages 0 inches of snow a year, and its average winter temperature is 50.7°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 San Mateo Union High 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 (650)558-2299.
District facts
| Students | 8,942 |
| Schools | 7 |
| Teachers | 454 |
| Grades | 9 to 12 |
| Area type | City |
| County | San Mateo County, CA |
| District office | 650 N. Delaware St., San Mateo |
| Phone | (650)558-2299 |
From the U.S. Department of Education's Common Core of Data (2022–23 school year).
Nearby districts
- Bayshore Elementary Daly City
- Belmont-Redwood Shores Elementary Belmont
- Brisbane Elementary Brisbane
- Burlingame Elementary Burlingame
- Cabrillo Unified Half Moon Bay
- Cupertino Union Sunnyvale
- Fremont Union High Sunnyvale
- Hillsborough City Elementary Hillsborough
- Jefferson Elementary Daly City
- Jefferson Union High Daly City
- La Honda-Pescadero Unified Pescadero
- Las Lomitas Elementary Menlo Park
Forecast details: National Weather Service MTR office, point forecast for San Mateo. How we calculate the chance.