Mount Kisco, NY 10536 Frost Dates
10536, near Mount Kisco, NY: the frost window
Around 04/30 is the usual last spring frost, about 245 days away. 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 Mount Kisco 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
Mount Kisco'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 Mount Kisco'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.
Mount Kisco against the rest of the dataset
At roughly 172 frost-free days, Mount Kisco places 28,231 of 40,283 ZIP codes in this dataset. Within NY, it ranks 704 of 1,951.
Learn more
Two guides worth reading on 10536: the frost range, on how to read the range around Mount Kisco's dates instead of trusting one, and local microclimates, on what one yard in Mount Kisco can differ from the 10536 normal.