Rockville Centre, NY 11570 Frost Dates
Frost dates for Rockville Centre, NY, ZIP 11570
Around 04/07 is the usual last spring frost, about 222 days away. The first fall frost typically arrives around 11/08, about 212 frost-free days later.
Zone 7b (5 to 10°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 Rockville Centre, not a forecast for this year.
What to do before the first frost
Zone 7b around Rockville Centre has about 10 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 04/07 isn't a guarantee
04/07 is the middle of 30 years of NOAA records, not a promise. Plant by 03/24 and you're betting against frost in roughly 9 years out of 10. 04/26 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Rockville Centre compares
Rockville Centre's growing season runs about 212 days, ranking 14,574 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 270 of 1,951.
Learn more
the frost range explains how to read the range around Rockville Centre's dates instead of trusting one, and local microclimates explains what one yard in Rockville Centre can differ from the 11570 normal.