Patton, PA 16668 Frost Dates
Frost dates for Patton, PA, ZIP 16668
Typically, the last spring freeze lands around 04/29, roughly 244 days out. The first fall frost typically arrives around 10/21, about 176 frost-free days later.
Patton 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
Zone 6a around Patton has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 and you're betting against frost in roughly 9 years out of 10. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Patton compares
Patton's growing season runs about 176 days, ranking 26,502 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,052 of 2,088.
Learn more
local microclimates explains what one yard in Patton can differ from the 16668 normal, and zone vs. frost date explains why Zone 6a and Patton's frost date answer different questions.