Glens Falls, NY 12804 Frost Dates
Frost dates for Glens Falls, NY, ZIP 12804
Around 05/17 is the usual last spring frost, about 262 days away. The first fall frost typically arrives around 09/29, about 135 frost-free days later.
Glens Falls sits in USDA Zone 5a (-20 to -15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 5a around Glens Falls has about 5 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 05/17 isn't a guarantee
05/17 is the middle of 30 years of NOAA records, not a promise. Plant by 05/01 and you're betting against frost in roughly 9 years out of 10. 05/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Glens Falls compares
Glens Falls's growing season runs about 135 days, ranking 37,830 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 1,839 of 1,951.
Learn more
the frost range explains how to read the range around Glens Falls's dates instead of trusting one, and local microclimates explains what one yard in Glens Falls can differ from the 12804 normal.