Greenville, PA 16125 Frost Dates
16125, near Greenville, PA: the frost window
Typically, the last spring freeze lands around 05/15, roughly 260 days out. Fall's first freeze usually shows up around 10/03, roughly 140 days after the last spring frost.
Greenville 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
Greenville'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.
Why 05/15 isn't a guarantee
05/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/01 and only about 1 year in 10 sees frost after that.
Greenville against the rest of the dataset
At roughly 140 frost-free days, Greenville places 37,046 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,981 of 2,088.
Learn more
Two guides worth reading on 16125: the frost range, on how to read the range around Greenville's dates instead of trusting one, and local microclimates, on what one yard in Greenville can differ from the 16125 normal.