Adamsburg, PA 15691 Frost Dates
15691, near Adamsburg, PA: the frost window
Around 05/02 is the usual last spring frost, about 247 days away. Fall's first freeze usually shows up around 10/20, roughly 170 days after the last spring frost.
Adamsburg sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Adamsburg's growing season runs out in roughly 8 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
05/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/20 and only about 1 year in 10 sees frost after that.
Adamsburg against the rest of the dataset
At roughly 170 frost-free days, Adamsburg places 29,254 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,509 of 2,088.
Learn more
Two guides worth reading on 15691: zone vs. frost date, on why Zone 6b and Adamsburg's frost date answer different questions, and the frost range, on how to read the range around Adamsburg's dates instead of trusting one.