Ontario, California
Will Chaffey Joint 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
Orange County averages 0 inches of snow a year, and its average winter temperature is 56.6°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 Chaffey Joint 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 (909)988-8511.
District facts
| Students | 23,145 |
| Schools | 11 |
| Teachers | 952 |
| Grades | 9 to 12 |
| Area type | Suburb |
| County | Orange County, CA |
| District office | 211 W. Fifth St., Ontario |
| Phone | (909)988-8511 |
From the U.S. Department of Education's Common Core of Data (2022–23 school year).
Nearby districts
- ABC Unified Cerritos
- Alta Loma Elementary Alta Loma
- Alvord Unified Corona
- Anaheim Elementary Anaheim
- Anaheim Union High Anaheim
- Beaumont Unified Beaumont
- Brea-Olinda Unified Brea
- Buena Park Elementary Buena Park
- Capistrano Unified San Juan Capistrano
- Central Elementary Rancho Cucamonga
- Centralia Elementary Buena Park
- Chino Valley Unified Chino
Forecast details: National Weather Service SGX office, point forecast for Ontario. How we calculate the chance.