Gettysburg, PA 17325 Frost Dates
Gettysburg, PA: when does the frost end?
The last spring frost here typically falls around 04/15, about 230 days from today. 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 Gettysburg 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 Gettysburg's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Gettysburg's last frost
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.
Gettysburg against the rest of the dataset
At roughly 194 frost-free days, Gettysburg places 19,465 of 40,283 ZIP codes in this dataset. Within PA, it ranks 381 of 2,088.
Learn more
Before leaning on 17325's figures: zone vs. frost date explains why Zone 7a and Gettysburg's frost date answer different questions, while the frost range explains how to read the range around Gettysburg's dates instead of trusting one.