Worthville, PA 15770 Frost Dates
15770, near Worthville, PA: the frost window
Typically, the last spring freeze lands around 05/10, roughly 255 days out. Fall's first freeze usually shows up around 10/12, roughly 155 days after the last spring frost.
Worthville sits in USDA Zone 6a (-10 to -5°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
Worthville's growing season runs out in roughly 6 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
05/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/28 and only about 1 year in 10 sees frost after that.
Worthville against the rest of the dataset
About 155 days separate Worthville's last and first frost, putting it 34,186 of 40,283 ZIP codes nationally. Within PA, it ranks 1,854 of 2,088.
Learn more
Two guides worth reading on 15770: local microclimates, on what one yard in Worthville can differ from the 15770 normal, and zone vs. frost date, on why Zone 6a and Worthville's frost date answer different questions.