Delaware planting calendars
Planting calendars, USDA hardiness zones, and average frost dates for 10 Delaware locations (Bethel, DE, Dewey Beach, DE, Hockessin, DE, Lewes, DE, Millsboro, DE, Millville, DE, Selbyville, DE, Smyrna, DE, Wilmington, DE, Woodside, DE). Pick a location to see its zone, average last and first frost dates, growing-season length, and a printable per-crop planting calendar, all from public NOAA and USDA data.
Locations in Delaware
| Location | USDA zone | Last frost | First frost | Season (days) |
|---|---|---|---|---|
| Bethel | 7b 5 to 10 °F | Apr 2 | Nov 10 | 222 |
| Dewey Beach | 8a 10 to 15 °F | Mar 29 | Nov 14 | 231 |
| Hockessin | 7a 0 to 5 °F | Apr 7 | Nov 4 | 209 |
| Lewes | 7b 5 to 10 °F | Mar 29 | Nov 14 | 231 |
| Millsboro | 7b 5 to 10 °F | Apr 4 | Nov 6 | 217 |
| Millville | 8a 10 to 15 °F | Apr 4 | Nov 6 | 217 |
| Selbyville | 7b 5 to 10 °F | Apr 7 | Nov 2 | 209 |
| Smyrna | 7b 5 to 10 °F | Apr 4 | Nov 4 | 214 |
| Wilmington | 7b 5 to 10 °F | Apr 7 | Nov 4 | 209 |
| Woodside | 7a 0 to 5 °F | Apr 4 | Nov 4 | 214 |
Data: NOAA NCEI U.S. Climate Normals 1991–2020 (public domain) and USDA Plant Hardiness Zone Map 2023. Planting windows synthesized from U.S. Cooperative Extension guides.
More ways to explore
Browse by USDA hardiness zone, see when to plant common crops, or read the methodology behind every figure. This site lists 10 Delaware locations, mapping every ZIP in the state to its nearest weather station with a full 30-year record.