The Snow Day Calculator Mark
TheSnowDayCalculator
Appalachian & Mid-Atlantic Region•Capital: Dover

Delaware Snow Day Predictor

DE

Delaware winter precipitation often involves the critical rain/snow freezing line traversing the Delmarva Peninsula, causing tricky transition storms.

Typical Closure Threshold
3 to 6 inches (or icing)
Climate Classification
Mid-Atlantic Coastal Plain
Average Annual Snow Days
3–6 days

Delaware Cities & School Districts

Select your city below for localized school closure probability forecasts and district contacts.

All US School Districts Directory →
❄️

Enter Any Delaware ZIP Code on the Homepage

Our national geocoding engine covers every school district in Delaware. Enter your 5-digit ZIP code on the home screen to see localized odds immediately.

🚜

Department of Transportation Plowing Operations

DelDOT utilizes automated vehicle location (AVL) snowplows to manage I-95, Route 1, and rural secondary roads.

🏫

School Closure Decision Framework

School districts in New Castle County face commuter congestion, while Kent and Sussex counties focus on rural bus safety.

Delaware Snow Day FAQs

Q:How quickly does Delaware announce school closures?

Superintendents typically issue cancellation or 2-hour delay notices between 5:00 AM and 6:00 AM after consulting with DelDOT traffic control.

Explore Winter Weather Science Guides