Dannemora, NY 12935 Frost Dates
When can you plant in Dannemora, NY?
Typically, the last spring freeze lands around 05/06, roughly 251 days out. 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
About 6 weeks of growing season left in Dannemora before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
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 33,331 of 40,283 ZIP codes nationally. Within NY, it ranks 1,225 of 1,951.
Learn more
local microclimates covers what one yard in Dannemora can differ from the 12935 normal. zone vs. frost date covers why Zone 5a and Dannemora's frost date answer different questions.