Helmetta, NJ 08828 Frost Dates
Frost dates for Helmetta, NJ, ZIP 08828
The last spring frost here typically falls around 04/17, about 232 days from today. The first fall frost typically arrives around 10/23, about 190 frost-free days later.
The USDA Plant Hardiness Zone Map puts Helmetta in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 7a around Helmetta has about 8 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
04/17 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 Helmetta compares
At roughly 190 frost-free days, Helmetta places 21,182 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 589 of 906.
Learn more
the frost range explains how to read the range around Helmetta's dates instead of trusting one, and local microclimates explains what one yard in Helmetta can differ from the 08828 normal.