Delaware climate

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.

StationElevationLast freezeFirst freezeSeason, daysTown page
Dover30 ftApril 4November 4214Dover
Georgetown Sussex CO AP51 ftApril 4November 6216Georgetown
Greenwood 2NE45 ftApril 11October 30202Greenwood
Lewes10 ftMarch 29November 14230Lewes
Newark Ag Farm106 ftApril 7November 2209Brookside
Wilmington New Castle CO AP79 ftApril 7November 1208Wilmington Manor
Wilmington Porter Rsch270 ftApril 7November 4211Wilmington

Sources

NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal freeze probabilities. Public domain.