Bellport, NY 11950 Frost Dates
11950, near Bellport, NY: the frost window
Around 04/18 is the usual last spring frost, about 233 days away. Fall's first freeze usually shows up around 10/28, roughly 193 days after the last spring frost.
Zone 7a (0 to 5°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 Bellport, not a forecast for this year.
Stretching the season past the first frost
Bellport's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/18 isn't a guarantee
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/01 and only about 1 year in 10 sees frost after that.
Bellport against the rest of the dataset
About 193 days separate Bellport's last and first frost, putting it 19,940 of 40,283 ZIP codes nationally. Within NY, it ranks 355 of 1,951.
Learn more
Two guides worth reading on 11950: the frost range, on how to read the range around Bellport's dates instead of trusting one, and local microclimates, on what one yard in Bellport can differ from the 11950 normal.