Green Island, NY 12183 Frost Dates
12183, near Green Island, NY: the frost window
Around 04/19 is the usual last spring frost, about 234 days away. Fall's first freeze usually shows up around 10/26, roughly 190 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Green Island in Zone 6a (-10 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
Green Island's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/19 isn't a guarantee
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/03 and only about 1 year in 10 sees frost after that.
Green Island against the rest of the dataset
About 190 days separate Green Island's last and first frost, putting it 21,169 of 40,283 ZIP codes nationally. Within NY, it ranks 372 of 1,951.
Learn more
Two guides worth reading on 12183: zone vs. frost date, on why Zone 6a and Green Island's frost date answer different questions, and the frost range, on how to read the range around Green Island's dates instead of trusting one.