Tionesta, PA 16353 Frost Dates
Frost dates for Tionesta, PA, ZIP 16353
The last spring frost here typically falls around 05/22, about 267 days from today. The first fall frost typically arrives around 09/30, about 131 frost-free days later.
Tionesta 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 Tionesta has about 5 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
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 Tionesta compares
Tionesta's growing season runs about 131 days, ranking 38,328 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 2,082 of 2,088.
Learn more
the frost range explains how to read the range around Tionesta's dates instead of trusting one, and local microclimates explains what one yard in Tionesta can differ from the 16353 normal.