Snow Day Predictor for San Ramon, CA
San Ramon is a mid-size city in California. Will San Ramon schools close or run late tomorrow? The live odds below are computed from tonight’s forecast for San Ramon with our transparent snow-day model — no account, no guesswork hidden behind the number.
Enter your town to see the odds of a snow day or 2-hour delay tomorrow — with the exact weather factors behind the number.
Do San Ramon schools close for snow?
San Ramon sees usually only a few inches a year in the lowlands. When snow does fall, it has an outsized effect on a region built for rain. Snow is rare and equipment is limited, so even 1–2" or any ice can close or delay schools. A dusting that would be ignored back east often triggers a delay here.
The percentage above updates with tonight's forecast — check back as a storm approaches, since timing and totals shift right up to the morning call.
Reading the San Ramon snow day odds
- Population
- 76,134
- Coordinates
- 37.78°N, 121.98°W
- Climate region
- Pacific lowland
- Typical winter snowfall
- usually only a few inches a year in the lowlands
San Ramon is a mid-size city of about 76,134 people that sits in the mid-latitudes, near 37.8°N in California. A winter here typically brings usually only a few inches a year in the lowlands. When snow does fall, it has an outsized effect on a region built for rain. Because the town falls in the Pacific lowland climate region, our model's closure threshold for San Ramon is tuned to close fairly easily, since snow-clearing equipment here is limited and roads ice quickly.
The percentage at the top of this page isn't a static guess — it's rebuilt each night from San Ramon's own Open-Meteo forecast. The model reads seven signals from the overnight-into-morning window: total snowfall, whether any of it is timed for the 2–6 a.m. commute, freezing rain or sleet, the coldest air temperature, the wind chill, the peak wind, and how much snow is already on the ground. Snow is rare and equipment is limited, so even 1–2" or any ice can close or delay schools. A dusting that would be ignored back east often triggers a delay here.
Because a 2-hour delay clears a lower bar than an outright cancellation, you'll often see delay odds for San Ramon even when the closure odds stay modest — that gap is the model flagging a borderline morning. The estimate shifts as the forecast firms up overnight, so it's worth re-checking San Ramon's odds the evening before school. Treat it as a well-informed second opinion for planning, never as an official California closing announcement.
Nearby snow day predictions
San Ramon snow day FAQ
Will there be a snow day in San Ramon tomorrow?
Tomorrow's odds for San Ramon are shown live above, computed from tonight's forecast with our transparent model. Treat it as a well-informed estimate and confirm with your district.
How much snow does it take to close San Ramon, California schools?
San Ramon sees usually only a few inches a year in the lowlands. When snow does fall, it has an outsized effect on a region built for rain. Snow is rare and equipment is limited, so even 1–2" or any ice can close or delay schools. A dusting that would be ignored back east often triggers a delay here.
Is this an official San Ramon school closing list?
No — this is an independent, probabilistic estimate and is not affiliated with any San Ramon-area district. Always confirm closures and delays with your school or district directly.