Arden, DE 19810 Frost Dates
Frost dates for Arden, DE, ZIP 19810
The last spring frost here typically falls around 04/07, about 222 days from today. The first fall frost typically arrives around 11/04, about 209 frost-free days later.
Zone 7b (5 to 10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Arden, not a forecast for this year.
What to do before the first frost
Zone 7b around Arden has about 10 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Arden's last frost
04/07 is the middle of 30 years of NOAA records, not a promise. Plant by 03/26 and you're betting against frost in roughly 9 years out of 10. 04/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Arden compares
Arden's growing season runs about 209 days, ranking 15,385 of 40,283 US ZIP codes measured here, longest to shortest. Within DE, it ranks 82 of 96.
Learn more
local microclimates explains what one yard in Arden can differ from the 19810 normal, and zone vs. frost date explains why Zone 7b and Arden's frost date answer different questions.