FrostDateCheck

Clinton, NJ 08557 Frost Dates

When can you plant in Clinton, NJ?

Zone 7a

Around 04/24 is the usual last spring frost, about 239 days away. The first fall frost typically arrives around 10/21, about 179 frost-free days later.

The USDA Plant Hardiness Zone Map puts Clinton in Zone 7a (0 to 5°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 8 weeks of growing season left in Clinton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

Why 04/24 isn't a guarantee

04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/09 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Clinton compares

Clinton's growing season runs about 179 days, ranking 25,311 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 758 of 906.

Learn more

the frost range covers how to read the range around Clinton's dates instead of trusting one. local microclimates covers what one yard in Clinton can differ from the 08557 normal.