Youngsville, PA 16340 Frost Dates
When can you plant in Youngsville, PA?
Around 05/22 is the usual last spring frost, about 267 days away. 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 6a (-10 to -5°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.
How much risk comes with planting early here
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
At roughly 131 frost-free days, Youngsville places 38,292 of 40,283 ZIP codes in this dataset. Within PA, it ranks 2,068 of 2,088.
Learn more
zone vs. frost date covers why Zone 6a 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.