Snow Day Calculator

It builds a playful 0-100% score primarily from forecast snowfall, then adjusts for cold temperatures, existing snow on the ground, and your school type. Heavy snowfall and dangerously low wind chills raise the estimated chance of school closing, while rural districts that routinely plow through winter weather bring the score down. The result is a fun estimate, not an official forecast, and actual closure decisions involve far more variables than any single formula can capture.

No, and it is not designed to be. It is a novelty estimator built for fun, not a substitute for an actual weather forecast or school-district announcement. Real closures depend on road conditions, bus route accessibility, wind chill warnings, ice formation on surfaces, and each district's specific policy. The calculator gives you a conversation-starter number to share with your kids, not a reliable prediction. Always check your school district's official website, app, or local news for the actual decision.

The threshold varies widely depending on geography and local infrastructure. In areas that rarely see snow, even two or three inches can trigger closures because plows, sand trucks, and driver experience are limited. In the Upper Midwest or mountain regions, districts may stay open through six or more inches because equipment and staff are prepared for it. Ice and dangerous wind chills often matter more than raw snowfall totals. A single inch of freezing rain frequently closes schools when a foot of fluffy snow would not.

The model applies a rough adjustment based on the observation that different school types tend to have different closure thresholds. Large public districts serving wide rural areas face more complex bus logistics and often tolerate more snow before calling a closure. Smaller private or charter schools may close more readily because they have fewer administrative layers and can notify families quickly. This is a simplification built into the scoring formula, not a statement about any specific school or district policy.