Hermitage, PA 16148 Frost Dates
16148, near Hermitage, PA: the frost window
Around 05/01 is the usual last spring frost, about 246 days away. Fall's first freeze usually shows up around 10/17, roughly 167 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Hermitage in Zone 6a (-10 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
Hermitage's growing season runs out in roughly 7 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 Hermitage's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 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.
Hermitage against the rest of the dataset
About 167 days separate Hermitage's last and first frost, putting it 29,894 of 40,283 ZIP codes nationally. Within PA, it ranks 1,510 of 2,088.
Learn more
Two guides worth reading on 16148: local microclimates, on what one yard in Hermitage can differ from the 16148 normal, and zone vs. frost date, on why Zone 6a and Hermitage's frost date answer different questions.