Newark, DE 19711 Frost Dates
Frost dates for Newark, DE, ZIP 19711
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.
Newark sits in USDA Zone 7b (5 to 10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
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
Newark's growing season runs about 209 days, ranking 15,147 of 40,283 US ZIP codes measured here, longest to shortest. Within DE, it ranks 34 of 96.
Learn more
local microclimates explains what one yard in Newark can differ from the 19711 normal, and zone vs. frost date explains why Zone 7b and Newark's frost date answer different questions.