Dannemora, NY 12924 Frost Dates
Frost dates for Dannemora, NY, ZIP 12924
Around 05/06 is the usual last spring frost, about 251 days away. The first fall frost typically arrives around 10/11, about 157 frost-free days later.
The USDA Plant Hardiness Zone Map puts Dannemora in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 5a around Dannemora 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.
The actual range around Dannemora's last frost
05/06 is the middle of 30 years of NOAA records, not a promise. Plant by 04/23 and you're betting against frost in roughly 9 years out of 10. 05/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dannemora compares
About 157 days separate Dannemora's last and first frost, putting it 33,330 of 40,283 ZIP codes nationally. Within NY, it ranks 1,224 of 1,951.
Learn more
the frost range explains how to read the range around Dannemora's dates instead of trusting one, and local microclimates explains what one yard in Dannemora can differ from the 12924 normal.