Niagara Falls, NY 14305 Frost Dates
Frost dates for Niagara Falls, NY, ZIP 14305
Typically, the last spring freeze lands around 05/01, roughly 246 days out. The first fall frost typically arrives around 10/19, about 167 frost-free days later.
Zone 6b (-5 to 0°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 Niagara Falls, not a forecast for this year.
What to do before the first frost
Zone 6b around Niagara Falls has about 7 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 05/01 isn't a guarantee
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Niagara Falls compares
Niagara Falls's growing season runs about 167 days, ranking 29,862 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 841 of 1,951.
Learn more
zone vs. frost date explains why Zone 6b and Niagara Falls's frost date answer different questions, and the frost range explains how to read the range around Niagara Falls's dates instead of trusting one.