FrostDateCheck

Colonie, NY 12222 Frost Dates

12222, near Colonie, NY: the frost window

Zone 6a

Around 04/27 is the usual last spring frost, about 242 days away. Fall's first freeze usually shows up around 10/15, roughly 169 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Colonie 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

Colonie's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.

The actual range around Colonie's last frost

04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/11 and only about 1 year in 10 sees frost after that.

Colonie against the rest of the dataset

About 169 days separate Colonie's last and first frost, putting it 29,397 of 40,283 ZIP codes nationally. Within NY, it ranks 798 of 1,951.

Learn more

Two guides worth reading on 12222: the frost range, on how to read the range around Colonie's dates instead of trusting one, and local microclimates, on what one yard in Colonie can differ from the 12222 normal.