Waynesboro, PA 17272 Frost Dates
Waynesboro, PA: when does the frost end?
Around 04/07 is the usual last spring frost, about 222 days away. Fall's first freeze usually shows up around 11/04, roughly 209 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Waynesboro 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 10 weeks until Waynesboro's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Waynesboro's last frost
04/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/21 and only about 1 year in 10 sees frost after that.
Waynesboro against the rest of the dataset
Waynesboro's growing season runs about 209 days, ranking 15,174 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 81 of 2,088.
Learn more
Before leaning on 17272's figures: zone vs. frost date explains why Zone 7a and Waynesboro's frost date answer different questions, while the frost range explains how to read the range around Waynesboro's dates instead of trusting one.