Clark, PA 16113 Frost Dates
When can you plant in Clark, PA?
Typically, the last spring freeze lands around 05/15, roughly 260 days out. The first fall frost typically arrives around 10/03, about 140 frost-free days later.
Clark 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 5 weeks of growing season left in Clark before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Clark's last frost
05/15 is the middle of 30 years of NOAA records, not a promise. Plant by 04/30 and you're betting against frost in roughly 9 years out of 10. 06/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Clark compares
Clark's growing season runs about 140 days, ranking 37,126 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 2,015 of 2,088.
Learn more
the frost range covers how to read the range around Clark's dates instead of trusting one. local microclimates covers what one yard in Clark can differ from the 16113 normal.