Jersey City, NJ 07306 Frost Dates
Frost dates for Jersey City, NJ, ZIP 07306
Typically, the last spring freeze lands around 04/04, roughly 219 days out. The first fall frost typically arrives around 11/06, about 216 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 Jersey City, not a forecast for this year.
What to do before the first frost
Zone 7b around Jersey City 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.
How much risk comes with planting early here
04/04 is the middle of 30 years of NOAA records, not a promise. Plant by 03/23 and you're betting against frost in roughly 9 years out of 10. 04/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Jersey City compares
About 216 days separate Jersey City's last and first frost, putting it 13,678 of 40,283 ZIP codes nationally. Within NJ, it ranks 276 of 906.
Learn more
local microclimates explains what one yard in Jersey City can differ from the 07306 normal, and zone vs. frost date explains why Zone 7b and Jersey City's frost date answer different questions.