Green Tree, PA 15260 Frost Dates
15260, near Green Tree, PA: the frost window
The last spring frost here typically falls around 04/18, about 233 days from today. Fall's first freeze usually shows up around 10/28, roughly 193 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 Green Tree, not a forecast for this year.
Stretching the season past the first frost
Green Tree's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Green Tree's last frost
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Green Tree against the rest of the dataset
At roughly 193 frost-free days, Green Tree places 19,865 of 40,283 ZIP codes in this dataset. Within PA, it ranks 448 of 2,088.
Learn more
Two guides worth reading on 15260: zone vs. frost date, on why Zone 6b and Green Tree's frost date answer different questions, and the frost range, on how to read the range around Green Tree's dates instead of trusting one.