Kenilworth, NJ 07040 Frost Dates
Frost dates for Kenilworth, NJ, ZIP 07040
Typically, the last spring freeze lands around 04/18, roughly 233 days out. The first fall frost typically arrives around 10/27, about 189 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 Kenilworth, not a forecast for this year.
What to do before the first frost
Zone 7a around Kenilworth has about 9 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.
How much risk comes with planting early here
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 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 Kenilworth compares
Kenilworth's growing season runs about 189 days, ranking 21,486 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 626 of 906.
Learn more
local microclimates explains what one yard in Kenilworth can differ from the 07040 normal, and zone vs. frost date explains why Zone 7a and Kenilworth's frost date answer different questions.