Snow Day Calculator
Estimate the probability your school will be closed based on forecast snow, temperature, region, school type, day of week, and storm timing.
LIFESTYLEEstimate the probability your school will close based on forecast snow, overnight temperature, region snow-experience, public vs private school, day of week, ice presence, and storm timing.
Weights snow accumulation most heavily (0-2 in: low, 4-6 in: moderate, 6-12 in: high, 12+ in: very high), then adjusts for region tolerance, day-of-week tendencies (Friday closures slightly more common), school type (private + rural closes faster than urban public), ice and freezing-rain presence (high impact), and storm timing (overnight peaking before sunrise drives more closures than afternoon storms). Displays the probability bar plus a verdict (Open, Delay, Half-Day, Closed) and the contribution of each factor.
Snow Day Calculator
Estimate the probability your school will be closed tomorrow based on forecast snow, temperature, region, school type, and the day of the week. Have a backpack-ready answer in seconds.
What Drives the Probability
How School Districts Decide
Superintendents typically make the call between 4-6 AM after reviewing the National Weather Service forecast, road conditions from the highway department, bus driver reports, and parking-lot temperatures. Heavy snow (6+ inches), ice on roads, or sub-10°F wind chills are the most common triggers.
Geography matters more than the absolute snow total. Two inches shuts down Atlanta and Dallas because plow trucks and salt budgets are minimal. Two inches barely registers in Buffalo or Minneapolis where the city has 100+ plows on standby. Mountain districts (Colorado, Vermont, Alaska) routinely run on days that would close down southern schools entirely.
Friday closures are slightly more common (long weekend bonus), and storms timed overnight produce more closures than ones that hit during the school day. Private schools close more readily than public schools because they cannot fall back on federal busing infrastructure. None of this guarantees anything - the model gives a probability, not a forecast.
Educational tool only. Actual closure decisions depend on local road conditions, bus route safety, building heat, and district-specific policy. Always check your school district website and local news in the morning.