Haddonfield, NJ 08033 Frost Dates
Frost dates for Haddonfield, NJ, ZIP 08033
The last spring frost here typically falls around 04/15, about 230 days from today. The first fall frost typically arrives around 10/31, about 199 frost-free days later.
Haddonfield 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 Haddonfield 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.
The actual range around Haddonfield's last frost
04/15 is the middle of 30 years of NOAA records, not a promise. Plant by 04/01 and you're betting against frost in roughly 9 years out of 10. 05/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Haddonfield compares
About 199 days separate Haddonfield's last and first frost, putting it 18,062 of 40,283 ZIP codes nationally. Within NJ, it ranks 436 of 906.
Learn more
zone vs. frost date explains why Zone 7b and Haddonfield's frost date answer different questions, and the frost range explains how to read the range around Haddonfield's dates instead of trusting one.