Mount Kisco, NY 10501 Frost Dates
Mount Kisco, NY: when does the frost end?
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/17, roughly 172 days after the last spring frost.
Mount Kisco sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 7 weeks until Mount Kisco's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
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 28,227 of 40,283 ZIP codes in this dataset. Within NY, it ranks 700 of 1,951.
Learn more
Before leaning on 10501's figures: zone vs. frost date explains why Zone 6b and Mount Kisco's frost date answer different questions, while the frost range explains how to read the range around Mount Kisco's dates instead of trusting one.