Sea Isle City, NJ 08243 Frost Dates
Frost dates for Sea Isle City, NJ, ZIP 08243
The last spring frost here typically falls around 04/24, about 239 days from today. The first fall frost typically arrives around 10/22, about 181 frost-free days later.
The USDA Plant Hardiness Zone Map puts Sea Isle City in Zone 7b (5 to 10°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 7b around Sea Isle City 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
04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sea Isle City compares
Sea Isle City's growing season runs about 181 days, ranking 24,559 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 731 of 906.
Learn more
the frost range explains how to read the range around Sea Isle City's dates instead of trusting one, and local microclimates explains what one yard in Sea Isle City can differ from the 08243 normal.