About Snow Day Calculator
Snow Day Calculator estimates whether schools in the United States and Canada may close the next morning. Enter a ZIP code, postal code or city to get a percentage based on hourly forecasts, with results updated every hour.
It focuses on conditions from 3 AM to 7 AM, including snow, freezing rain, wind and cold, then adjusts for regional differences in how schools handle winter weather. A live map compares forecasts across cities, and location-specific results can include winter weather alerts.
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