Newark, DE 19702 Frost Dates
Frost dates for Newark, DE, ZIP 19702
Around 04/07 is the usual last spring frost, about 222 days away. The first fall frost typically arrives around 11/01, 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 Newark, not a forecast for this year.
What to do before the first frost
Zone 7b around Newark has about 9 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.
Why 04/07 isn't a guarantee
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. 04/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Newark compares
About 209 days separate Newark's last and first frost, putting it 15,146 of 40,283 ZIP codes nationally. Within DE, it ranks 33 of 96.
Learn more
the frost range explains how to read the range around Newark's dates instead of trusting one, and local microclimates explains what one yard in Newark can differ from the 19702 normal.