Union City, NJ 07086 Frost Dates
When can you plant in Union City, NJ?
Typically, the last spring freeze lands around 03/30, roughly 214 days out. The first fall frost typically arrives around 11/20, about 236 frost-free days later.
The USDA Plant Hardiness Zone Map puts Union City in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 12 weeks of growing season left in Union City before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
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 Union City compares
About 236 days separate Union City's last and first frost, putting it 9,233 of 40,283 ZIP codes nationally. Within NJ, it ranks 26 of 906.
Learn more
local microclimates covers what one yard in Union City can differ from the 07086 normal. zone vs. frost date covers why Zone 7b and Union City's frost date answer different questions.