Mount Kisco, NY 10526 Frost Dates
Frost dates for Mount Kisco, NY, ZIP 10526
The last spring frost here typically falls around 04/30, about 245 days from today. The first fall frost typically arrives around 10/17, about 172 frost-free days later.
Zone 7a (0 to 5°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 Mount Kisco, not a forecast for this year.
What to do before the first frost
Zone 7a around Mount Kisco has about 7 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/16 and you're betting against frost in roughly 9 years out of 10. 05/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mount Kisco compares
About 172 days separate Mount Kisco's last and first frost, putting it 28,229 of 40,283 ZIP codes nationally. Within NY, it ranks 702 of 1,951.
Learn more
the frost range explains how to read the range around Mount Kisco's dates instead of trusting one, and local microclimates explains what one yard in Mount Kisco can differ from the 10526 normal.