Wallaceton, PA 16858 Frost Dates
16858, near Wallaceton, PA: the frost window
Around 05/13 is the usual last spring frost, about 258 days away. Fall's first freeze usually shows up around 10/01, roughly 142 days after the last spring frost.
Zone 6a (-10 to -5°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 Wallaceton, not a forecast for this year.
Stretching the season past the first frost
Wallaceton's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/29 and only about 1 year in 10 sees frost after that.
Wallaceton against the rest of the dataset
At roughly 142 frost-free days, Wallaceton places 36,816 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,964 of 2,088.
Learn more
Two guides worth reading on 16858: local microclimates, on what one yard in Wallaceton can differ from the 16858 normal, and zone vs. frost date, on why Zone 6a and Wallaceton's frost date answer different questions.