Nassau, NY 12063 Frost Dates
Frost dates for Nassau, NY, ZIP 12063
Around 04/27 is the usual last spring frost, about 242 days away. The first fall frost typically arrives around 10/14, about 171 frost-free days later.
Nassau sits in USDA Zone 6a (-10 to -5°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 6a around Nassau 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.
The actual range around Nassau's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 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 Nassau compares
Nassau's growing season runs about 171 days, ranking 28,725 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 741 of 1,951.
Learn more
local microclimates explains what one yard in Nassau can differ from the 12063 normal, and zone vs. frost date explains why Zone 6a and Nassau's frost date answer different questions.