Hightstown, NJ 08520 Frost Dates
When can you plant in Hightstown, NJ?
Typically, the last spring freeze lands around 04/25, roughly 240 days out. The first fall frost typically arrives around 10/16, about 173 frost-free days later.
Zone 7a (0 to 5°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 Hightstown, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Hightstown before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/25 isn't a guarantee
04/25 is the middle of 30 years of NOAA records, not a promise. Plant by 04/12 and you're betting against frost in roughly 9 years out of 10. 05/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Hightstown compares
At roughly 173 frost-free days, Hightstown places 27,856 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 839 of 906.
Learn more
the frost range covers how to read the range around Hightstown's dates instead of trusting one. local microclimates covers what one yard in Hightstown can differ from the 08520 normal.