Frost dates · 1 cities · zones 7b–7b
Delaware frost dates, city by city
Wilmington's median last spring frost is April 7.
| City | Zone | Last frost median | First frost median | Season | Jan → Dec |
|---|---|---|---|---|---|
| Wilmington | 7b | Apr 7 | Nov 4 | 209 d |
Medians from NOAA NCEI 1991–2020 U.S. Climate Normals at each city's nearest qualifying station; zones from the 2023 USDA Plant Hardiness Zone Map. Open a city for the 1-in-10-year dates, the station, and a planting calendar for every sauce crop.