About

Snow Day Calculator is a small, fast web tool for families and students who want a quick snow day probability without extra apps or logins. It runs entirely in your browser and uses public forecast data. The design is compact and mobile‑first so you can check a location in seconds.

We built it after noticing many “snow day calc” sites were slow or opaque about their method. Our approach is transparent: we show the inputs we use, display a sparkline of the next 24 hours, and summarize the last seven days at your location.