Quarryville, PA 17532 Frost Dates
Quarryville, PA: when does the frost end?
Typically, the last spring freeze lands around 04/03, roughly 218 days out. Fall's first freeze usually shows up around 11/06, roughly 217 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 10 weeks until Quarryville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/18 and only about 1 year in 10 sees frost after that.
Quarryville against the rest of the dataset
At roughly 217 frost-free days, Quarryville places 13,492 of 40,283 ZIP codes in this dataset. Within PA, it ranks 47 of 2,088.
Learn more
Before leaning on 17532's figures: zone vs. frost date explains why Zone 7a and Quarryville's frost date answer different questions, while the frost range explains how to read the range around Quarryville's dates instead of trusting one.