Unionville, NY 07418 Frost Dates
Frost dates for Unionville, NY, ZIP 07418
Around 05/01 is the usual last spring frost, about 246 days away. The first fall frost typically arrives around 10/12, about 164 frost-free days later.
The USDA Plant Hardiness Zone Map puts Unionville in Zone 6b (-5 to 0°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 6b around Unionville has about 6 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.
The actual range around Unionville's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Unionville compares
About 164 days separate Unionville's last and first frost, putting it 31,103 of 40,283 ZIP codes nationally. Within NY, it ranks 927 of 1,951.
Learn more
zone vs. frost date explains why Zone 6b and Unionville's frost date answer different questions, and the frost range explains how to read the range around Unionville's dates instead of trusting one.