Whitesboro, NY 13492 Frost Dates
Frost dates for Whitesboro, NY, ZIP 13492
Around 05/06 is the usual last spring frost, about 251 days away. The first fall frost typically arrives around 10/13, about 157 frost-free days later.
Zone 5b (-15 to -10°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 Whitesboro, not a forecast for this year.
What to do before the first frost
Zone 5b around Whitesboro 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 05/06 isn't a guarantee
05/06 is the middle of 30 years of NOAA records, not a promise. Plant by 04/22 and you're betting against frost in roughly 9 years out of 10. 05/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Whitesboro compares
About 157 days separate Whitesboro's last and first frost, putting it 33,315 of 40,283 ZIP codes nationally. Within NY, it ranks 1,218 of 1,951.
Learn more
zone vs. frost date explains why Zone 5b and Whitesboro's frost date answer different questions, and the frost range explains how to read the range around Whitesboro's dates instead of trusting one.