Winter Storm Warnings in Wilmington, Delaware
Wilmington sits in a transitional climate zone where winter precipitation can flip between rain, sleet, freezing rain, and heavy snow within a matter of hours. The city averages roughly 17.8 inches (45.3 cm) of snowfall per year, based on data spanning 13 winters from 2012 through 2024. That total is modest by northeastern standards, but it can arrive in concentrated bursts rather than steady, manageable dustings.
The snowiest stretch of the season typically runs through February, March, and January, in that order — a reminder that late-winter storms are often more impactful here than early-season events. Truly heavy snow days, where accumulations reach warning-level thresholds, average only about 0.4 days per year, meaning a significant snowstorm is a real but relatively infrequent event for the area.
A winter storm warning issued for Wilmington signals that forecasters expect dangerous conditions capable of disrupting travel and daily life. The specific snowfall or ice thresholds that trigger a warning vary by region across the country — what qualifies in the South differs substantially from what the National Weather Service requires here in the mid-Atlantic. Average winter low temperatures hover near 29.6 °F (−1.3 °C), meaning frozen precipitation can persist longer than residents might expect.
| Years analyzed | 13 winters (2012–2024) |
|---|---|
| Avg. annual snowfall | 17.8 in (45.3 cm) |
| Snowiest months | February, March, January |
| Avg. winter overnight low | 29.6°F (−1.3°C) |
| Heavy-snow days per year | 0.4 |
Climatology figures are approximate estimates for the period shown and may differ from official local records.
Watch vs warning: a winter storm watch means a major storm is possible in Wilmington within 12–48 hours (be prepared); a winter storm warning means it is happening or about to (take action now). For full definitions, see the complete winter storm warning guide.
Wilmington winter storm FAQ
Is there a winter storm warning in Wilmington right now?
The live status at the top of this page shows whether a winter storm warning, watch, or advisory is currently in effect for Wilmington, Delaware. It checks live forecast and alert data automatically and refreshes every time the page loads.
Does Wilmington get winter storm warnings often?
Wilmington sees moderate snowfall in a typical winter, with winter storm warnings during the stronger systems. The frequency varies year to year with the track of major storm systems.
How much snow triggers a winter storm warning in Wilmington?
There is no single national trigger: warning criteria are set by each local National Weather Service office, ranging from a couple of inches of snow in areas where snow is rare up to 6 inches or more in snow-belt regions, and significant ice accumulation can warrant a warning on its own.
What should I do during a winter storm warning in Wilmington?
Avoid travel if possible, stay indoors and keep warm, prepare for power outages, keep an emergency kit, and check on elderly or vulnerable neighbours. Follow guidance from Delaware authorities and the National Weather Service (NWS).
Winter storm warnings in nearby locations
- Winter storm warning in Philadelphia, PA
- Winter storm warning in Dover, DE
- Winter storm warning in Allentown, PA
- Winter storm warning in Trenton, NJ
- Winter storm warning in Baltimore, MD
- Winter storm warning in Atlantic City, NJ
See all locations, read the latest winter weather news, or the full winter storm warning guide. Definitions follow the National Weather Service (NWS) criteria; thresholds vary by region.