Delaware frost dates

Across Delaware, the average last spring frost is around April 14 and the average first fall frost around October 22 — roughly 191 frost-free days. USDA zones 7a, 7b.

Risk you accept	Last spring frost by	First fall frost by
Cautious (~10%)	April 28	October 8
Average (~50%)	April 14	October 22
Gambler (~90%)	March 31	November 5

→ Turn these into sowing dates with the Delaware planting calendar, or look up an exact ZIP code.

Statewide average from NOAA/NCEI freeze normals. Cautious/gambler dates are about two weeks either side of the average.