Liberty, PA 17763 Frost Dates
Frost dates for Liberty, PA, ZIP 17763
The last spring frost here typically falls around 04/24, about 239 days from today. The first fall frost typically arrives around 10/23, about 180 frost-free days later.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Liberty, not a forecast for this year.
What to do before the first frost
Zone 6a around Liberty 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.
Why 04/24 isn't a guarantee
04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/12 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Liberty compares
About 180 days separate Liberty's last and first frost, putting it 25,066 of 40,283 ZIP codes nationally. Within PA, it ranks 864 of 2,088.
Learn more
zone vs. frost date explains why Zone 6a and Liberty's frost date answer different questions, and the frost range explains how to read the range around Liberty's dates instead of trusting one.