Champlain, NY 12959 Frost Dates
Frost dates for Champlain, NY, ZIP 12959
Typically, the last spring freeze lands around 04/30, roughly 245 days out. The first fall frost typically arrives around 10/12, about 164 frost-free days later.
Zone 4b (-25 to -20°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 Champlain, not a forecast for this year.
What to do before the first frost
Zone 4b around Champlain 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.
How much risk comes with planting early here
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Champlain compares
About 164 days separate Champlain's last and first frost, putting it 31,049 of 40,283 ZIP codes nationally. Within NY, it ranks 923 of 1,951.
Learn more
local microclimates explains what one yard in Champlain can differ from the 12959 normal, and zone vs. frost date explains why Zone 4b and Champlain's frost date answer different questions.