Sag Harbor, NY 11963 Frost Dates
Sag Harbor, NY: when does the frost end?
Around 04/23 is the usual last spring frost, about 238 days away. Fall's first freeze usually shows up around 10/24, roughly 182 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Sag Harbor in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 8 weeks until Sag Harbor's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Sag Harbor's last frost
04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/08 and only about 1 year in 10 sees frost after that.
Sag Harbor against the rest of the dataset
About 182 days separate Sag Harbor's last and first frost, putting it 24,172 of 40,283 ZIP codes nationally. Within NY, it ranks 525 of 1,951.
Learn more
Before leaning on 11963's figures: the frost range explains how to read the range around Sag Harbor's dates instead of trusting one, while local microclimates explains what one yard in Sag Harbor can differ from the 11963 normal.