Wellsville, PA 17365 Frost Dates
When can you plant in Wellsville, PA?
Typically, the last spring freeze lands around 04/27, roughly 242 days out. The first fall frost typically arrives around 10/18, about 174 frost-free days later.
Zone 7a (0 to 5°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 Wellsville, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Wellsville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/12 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Wellsville compares
About 174 days separate Wellsville's last and first frost, putting it 27,617 of 40,283 ZIP codes nationally. Within PA, it ranks 1,312 of 2,088.
Learn more
zone vs. frost date covers why Zone 7a and Wellsville's frost date answer different questions. the frost range covers how to read the range around Wellsville's dates instead of trusting one.