Delaware Frost Dates
The median last spring freeze and first fall freeze (32°F) at 7 NOAA stations in Delaware, 1991-2020, with the growing season between them.
Every station
A median date has an even chance of a later freeze in spring or an earlier one in fall. Each town page gives the dates at 36, 32 and 28°F and every probability from 10 to 90 percent.
| Station | Elevation | Last freeze | First freeze | Season, days | Town page |
|---|---|---|---|---|---|
| Dover | 30 ft | April 4 | November 4 | 214 | Dover |
| Georgetown Sussex CO AP | 51 ft | April 4 | November 6 | 216 | Georgetown |
| Greenwood 2NE | 45 ft | April 11 | October 30 | 202 | Greenwood |
| Lewes | 10 ft | March 29 | November 14 | 230 | Lewes |
| Newark Ag Farm | 106 ft | April 7 | November 2 | 209 | Brookside |
| Wilmington New Castle CO AP | 79 ft | April 7 | November 1 | 208 | Wilmington Manor |
| Wilmington Porter Rsch | 270 ft | April 7 | November 4 | 211 | Wilmington |
Sources
NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal freeze probabilities. Public domain.