Biglerville, PA 17375 Frost Dates
Biglerville, PA: when does the frost end?
Typically, the last spring freeze lands around 04/15, roughly 230 days out. Fall's first freeze usually shows up around 10/27, roughly 194 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Biglerville in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 9 weeks until Biglerville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/15 isn't a guarantee
04/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/04 and only about 1 year in 10 sees frost after that.
Biglerville against the rest of the dataset
At roughly 194 frost-free days, Biglerville places 19,528 of 40,283 ZIP codes in this dataset. Within PA, it ranks 387 of 2,088.
Learn more
Before leaning on 17375's figures: the frost range explains how to read the range around Biglerville's dates instead of trusting one, while local microclimates explains what one yard in Biglerville can differ from the 17375 normal.