Jersey City, NJ 07302 Frost Dates
Frost dates for Jersey City, NJ, ZIP 07302
Around 03/30 is the usual last spring frost, about 214 days away. The first fall frost typically arrives around 11/20, about 236 frost-free days later.
Jersey City 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 Jersey City has about 12 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 03/30 isn't a guarantee
03/30 is the middle of 30 years of NOAA records, not a promise. Plant by 03/14 and you're betting against frost in roughly 9 years out of 10. 04/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Jersey City compares
At roughly 236 frost-free days, Jersey City places 9,209 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 22 of 906.
Learn more
the frost range explains how to read the range around Jersey City's dates instead of trusting one, and local microclimates explains what one yard in Jersey City can differ from the 07302 normal.