Fishkill, NY 12533 Frost Dates
12533, near Fishkill, NY: the frost window
Typically, the last spring freeze lands around 04/21, roughly 236 days out. Fall's first freeze usually shows up around 10/25, roughly 185 days after the last spring frost.
Zone 6b (-5 to 0°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 Fishkill, not a forecast for this year.
Stretching the season past the first frost
Fishkill'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 04/21 isn't a guarantee
04/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/04 and only about 1 year in 10 sees frost after that.
Fishkill against the rest of the dataset
At roughly 185 frost-free days, Fishkill places 23,185 of 40,283 ZIP codes in this dataset. Within NY, it ranks 454 of 1,951.
Learn more
Two guides worth reading on 12533: local microclimates, on what one yard in Fishkill can differ from the 12533 normal, and zone vs. frost date, on why Zone 6b and Fishkill's frost date answer different questions.