Croton-on-Hudson, NY 10521 Frost Dates
10521, near Croton-on-Hudson, NY: the frost window
The last spring frost here typically falls around 04/30, about 245 days from today. Fall's first freeze usually shows up around 10/17, roughly 172 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Croton-on-Hudson 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
Croton-on-Hudson'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 Croton-on-Hudson's last frost
04/30 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 05/13 and only about 1 year in 10 sees frost after that.
Croton-on-Hudson against the rest of the dataset
At roughly 172 frost-free days, Croton-on-Hudson places 28,246 of 40,283 ZIP codes in this dataset. Within NY, it ranks 707 of 1,951.
Learn more
Two guides worth reading on 10521: zone vs. frost date, on why Zone 7a and Croton-on-Hudson's frost date answer different questions, and the frost range, on how to read the range around Croton-on-Hudson's dates instead of trusting one.