Monticello, NY 12778 Frost Dates
Frost dates for Monticello, NY, ZIP 12778
Typically, the last spring freeze lands around 05/07, roughly 252 days out. The first fall frost typically arrives around 10/07, about 152 frost-free days later.
Zone 6a (-10 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 Monticello, not a forecast for this year.
What to do before the first frost
Zone 6a around Monticello has about 6 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.
Why 05/07 isn't a guarantee
05/07 is the middle of 30 years of NOAA records, not a promise. Plant by 04/25 and you're betting against frost in roughly 9 years out of 10. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Monticello compares
At roughly 152 frost-free days, Monticello places 34,737 of 40,283 ZIP codes in this dataset. Within NY, it ranks 1,468 of 1,951.
Learn more
local microclimates explains what one yard in Monticello can differ from the 12778 normal, and zone vs. frost date explains why Zone 6a and Monticello's frost date answer different questions.