Delaware Frost Dates
Delaware is relatively gardener-friendly, with a fairly long season and maritime influence that moderates much of the state. Frost usually lifts sooner in southern and bayside areas, while inland spots can cool more quickly and deserve extra caution in spring and fall.
Look up your exact frost dates
Frost timing shifts across Delaware with elevation and distance from water. Enter your ZIP code for dates from your nearest weather station.
Delaware locations
| ZIP | Area | Hardiness zone |
|---|---|---|
| 19702 | Glasgow | 7b |
| 19703 | Claymont | 7b |
| 19710 | Greenville | 7b |
| 19711 | Newark | 7b |
| 19713 | Brookside | 7b |
| 19716 | Newark | 7b |
| 19717 | Newark | 7b |
| 19720 | New Castle | 7b |
| 19732 | Greenville | 7b |
| 19801 | Wilmington | 7b |
| 19802 | Wilmington | 7b |
| 19803 | Wilmington | 7b |
| 19804 | Newport | 7b |
| 19805 | Elsmere | 7b |
| 19806 | Wilmington | 7b |
| 19809 | Edgemoor | 7b |
| 19901 | Dover | 7b |
| 19902 | Dover | 7b |
| 19947 | Georgetown | 7b |
| 19950 | Greenwood | 7b |
| 19701 | Glasgow | 7b |
| 19706 | Delaware City | 7b |
| 19707 | Hockessin | 7a |
| 19709 | Middletown | 7b |
| 19730 | Odessa | 7b |
| 19731 | Port Penn | 7b |
| 19733 | St. Georges | - |
| 19734 | Townsend | 7b |
| 19735 | Greenville | 7b |
| 19736 | Hockessin | - |
| 19807 | Greenville | 7b |
| 19808 | Pike Creek | 7b |
| 19810 | Ardentown | 7b |
| 19904 | Dover | 7b |
| 19930 | Bethany Beach | 8a |
| 19931 | Bethel | 7b |
| 19933 | Bridgeville | 7b |
| 19934 | Camden | 7b |
| 19936 | Cheswold | 7b |
| 19938 | Kenton | 7b |
| 19939 | Dagsboro | 7b |
| 19940 | Delmar | 7b |
| 19941 | Ellendale | 7b |
| 19943 | Felton | 7b |
| 19944 | Fenwick Island | 8a |
| 19945 | Frankford | 7b |
| 19946 | Frederica | 7b |
| 19951 | Long Neck | 7b |
| 19952 | Harrington | 7b |
| 19953 | Hartly | 7b |
| 19954 | Houston | 7b |
| 19955 | Kenton | 7b |
| 19956 | Laurel | 7b |
| 19958 | Lewes | 7b |
| 19960 | Lincoln | 7b |
| 19962 | Magnolia | 7b |
| 19963 | Slaughter Beach | 7b |
| 19964 | Marydel | 7b |
| 19966 | Millsboro | 7b |
| 19967 | Millville | 7b |
Source: NOAA 1991–2020 U.S. Climate Normals (public domain) and USDA 2023 Plant Hardiness Zone Map. Page updated Aug 4, 2026.