Quarryville, PA 17560 Frost Dates
Frost dates for Quarryville, PA, ZIP 17560
The last spring frost here typically falls around 04/18, about 233 days from today. The first fall frost typically arrives around 10/25, about 186 frost-free days later.
Quarryville sits in USDA Zone 7a (0 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 7a around Quarryville 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.
The actual range around Quarryville's last frost
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/04 and you're betting against frost in roughly 9 years out of 10. 05/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Quarryville compares
About 186 days separate Quarryville's last and first frost, putting it 22,827 of 40,283 ZIP codes nationally. Within PA, it ranks 677 of 2,088.
Learn more
zone vs. frost date explains why Zone 7a and Quarryville's frost date answer different questions, and the frost range explains how to read the range around Quarryville's dates instead of trusting one.