Roslyn Harbor, NY 11548 Frost Dates
When can you plant in Roslyn Harbor, NY?
Around 04/02 is the usual last spring frost, about 217 days away. The first fall frost typically arrives around 11/12, about 224 frost-free days later.
The USDA Plant Hardiness Zone Map puts Roslyn Harbor 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
About 11 weeks of growing season left in Roslyn Harbor before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Roslyn Harbor's last frost
04/02 is the middle of 30 years of NOAA records, not a promise. Plant by 03/18 and you're betting against frost in roughly 9 years out of 10. 04/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Roslyn Harbor compares
At roughly 224 frost-free days, Roslyn Harbor places 11,930 of 40,283 ZIP codes in this dataset. Within NY, it ranks 185 of 1,951.
Learn more
local microclimates covers what one yard in Roslyn Harbor can differ from the 11548 normal. zone vs. frost date covers why Zone 7b and Roslyn Harbor's frost date answer different questions.