Pennington, NJ 08534 Frost Dates
When can you plant in Pennington, NJ?
The last spring frost here typically falls around 04/17, about 232 days from today. The first fall frost typically arrives around 10/28, about 192 frost-free days later.
Pennington 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 Pennington before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/17 isn't a guarantee
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 Pennington compares
At roughly 192 frost-free days, Pennington places 20,363 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 546 of 906.
Learn more
the frost range covers how to read the range around Pennington's dates instead of trusting one. local microclimates covers what one yard in Pennington can differ from the 08534 normal.