Trenton, NJ 08611 Frost Dates
When can you plant in Trenton, NJ?
Typically, the last spring freeze lands around 04/17, roughly 232 days out. The first fall frost typically arrives around 10/28, about 192 frost-free days later.
Trenton sits in USDA Zone 7a (0 to 5°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
About 9 weeks of growing season left in Trenton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Trenton's last frost
04/17 is the middle of 30 years of NOAA records, not a promise. Plant by 04/02 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Trenton compares
Trenton's growing season runs about 192 days, ranking 20,119 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 533 of 906.
Learn more
the frost range covers how to read the range around Trenton's dates instead of trusting one. local microclimates covers what one yard in Trenton can differ from the 08611 normal.