Snow Day Probability
☀️ Chance of school cancellation tomorrow
Data provided by Open-Meteo
The Wilmington area school districts in Delaware together serve thousands of students across many public, charter, and private campuses. The Wilmington area averages approximately 22 inches of snowfall per year, with the heaviest snowfall typically occurring between December and February.
School districts in Wilmington generally post closure decisions to district websites and notify parents through automated alerts and local broadcasters, typically before sunrise on storm days, after coordinating with bus contractors and transportation supervisors. Two-hour delays and remote-learning days are sometimes used in Wilmington as alternatives to a full closure when conditions are borderline.
Wilmington's geography plays a meaningful role in its winter weather: a coastal mid-Atlantic climate where ocean moisture fuels heavy nor'easter snowfall events. These factors directly influence how often Wilmington schools end up closed during a given winter. Geographically, Wilmington sits near 39.74°N, 75.55°W, which shapes how regional storm systems and Arctic air masses interact with the area.
Notable historic snow events in or near Wilmington include the Blizzard of 1996 that buried the Mid-Atlantic in over two feet of snow, which produced widespread closures across the region. Historically, schools in the Wilmington area close an average of approximately 2 days per winter season due to snow, ice, or extreme cold. Use our Snow Day Calculator above to check tomorrow's real-time school closure probability for Wilmington based on live weather forecast data from Open-Meteo.
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Our calculator pulls live weather forecast data for Wilmington from the Open-Meteo API and analyzes snowfall accumulation, temperature, wind chill, and 24-hour precipitation totals to generate a school closure probability percentage.
Check between 9 PM and midnight the evening before a potential storm. Weather models are most reliable within a 12–18 hour forecast window, giving you the most accurate prediction for the following morning.
Yes. Public schools close more readily than private schools, which close more readily than colleges and universities. Select your school type for the most accurate Wilmington prediction.