Hartleton, PA 17829 Frost Dates
Hartleton, PA: when does the frost end?
Typically, the last spring freeze lands around 04/25, roughly 240 days out. Fall's first freeze usually shows up around 10/19, roughly 175 days after the last spring frost.
Zone 6b (-5 to 0°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Hartleton, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Hartleton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/25 isn't a guarantee
04/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/11 and only about 1 year in 10 sees frost after that.
Hartleton against the rest of the dataset
Hartleton's growing season runs about 175 days, ranking 27,245 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,268 of 2,088.
Learn more
Before leaning on 17829's figures: the frost range explains how to read the range around Hartleton's dates instead of trusting one, while local microclimates explains what one yard in Hartleton can differ from the 17829 normal.