River Edge, NJ 07661 Frost Dates
Frost dates for River Edge, NJ, ZIP 07661
Typically, the last spring freeze lands around 04/15, roughly 230 days out. The first fall frost typically arrives around 10/28, about 195 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 River Edge, not a forecast for this year.
What to do before the first frost
Zone 7b around River Edge 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 River Edge'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 River Edge compares
River Edge's growing season runs about 195 days, ranking 19,222 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 506 of 906.
Learn more
local microclimates explains what one yard in River Edge can differ from the 07661 normal, and zone vs. frost date explains why Zone 7b and River Edge's frost date answer different questions.