Bethany, PA 18469 Frost Dates
When can you plant in Bethany, PA?
Around 05/12 is the usual last spring frost, about 257 days away. The first fall frost typically arrives around 10/07, about 146 frost-free days later.
Bethany sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 6 weeks of growing season left in Bethany before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/12 isn't a guarantee
05/12 is the middle of 30 years of NOAA records, not a promise. Plant by 04/25 and you're betting against frost in roughly 9 years out of 10. 05/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bethany compares
About 146 days separate Bethany's last and first frost, putting it 36,131 of 40,283 ZIP codes nationally. Within PA, it ranks 1,927 of 2,088.
Learn more
zone vs. frost date covers why Zone 6a and Bethany's frost date answer different questions. the frost range covers how to read the range around Bethany's dates instead of trusting one.