Youngsville, PA 16371 Frost Dates
When can you plant in Youngsville, PA?
Typically, the last spring freeze lands around 05/22, roughly 267 days out. The first fall frost typically arrives around 09/30, about 131 frost-free days later.
The USDA Plant Hardiness Zone Map puts Youngsville 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
About 5 weeks of growing season left in Youngsville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Youngsville's last frost
05/22 is the middle of 30 years of NOAA records, not a promise. Plant by 05/06 and you're betting against frost in roughly 9 years out of 10. 06/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Youngsville compares
About 131 days separate Youngsville's last and first frost, putting it 38,297 of 40,283 ZIP codes nationally. Within PA, it ranks 2,073 of 2,088.
Learn more
zone vs. frost date covers why Zone 5b and Youngsville's frost date answer different questions. the frost range covers how to read the range around Youngsville's dates instead of trusting one.