South Dayton, NY 14751 Frost Dates
Frost dates for South Dayton, NY, ZIP 14751
Around 05/17 is the usual last spring frost, about 262 days away. The first fall frost typically arrives around 10/01, about 136 frost-free days later.
The USDA Plant Hardiness Zone Map puts South Dayton in Zone 5b (-15 to -10°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 5b around South Dayton 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.
How much risk comes with planting early here
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 South Dayton compares
About 136 days separate South Dayton's last and first frost, putting it 37,759 of 40,283 ZIP codes nationally. Within NY, it ranks 1,833 of 1,951.
Learn more
zone vs. frost date explains why Zone 5b and South Dayton's frost date answer different questions, and the frost range explains how to read the range around South Dayton's dates instead of trusting one.