Franklin, NJ 07460 Frost Dates
Frost dates for Franklin, NJ, ZIP 07460
The last spring frost here typically falls around 04/25, about 240 days from today. The first fall frost typically arrives around 10/17, about 174 frost-free days later.
Franklin sits in USDA Zone 6b (-5 to 0°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
Zone 6b around Franklin has about 7 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.
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. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Franklin compares
Franklin's growing season runs about 174 days, ranking 27,449 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 831 of 906.
Learn more
local microclimates explains what one yard in Franklin can differ from the 07460 normal, and zone vs. frost date explains why Zone 6b and Franklin's frost date answer different questions.