Southampton, NY 11948 Frost Dates
Frost dates for Southampton, NY, ZIP 11948
The last spring frost here typically falls around 04/19, about 234 days from today. The first fall frost typically arrives around 11/01, about 196 frost-free days later.
The USDA Plant Hardiness Zone Map puts Southampton 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 Southampton 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.
Why 04/19 isn't a guarantee
04/19 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. 05/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Southampton compares
About 196 days separate Southampton's last and first frost, putting it 18,964 of 40,283 ZIP codes nationally. Within NY, it ranks 345 of 1,951.
Learn more
the frost range explains how to read the range around Southampton's dates instead of trusting one, and local microclimates explains what one yard in Southampton can differ from the 11948 normal.