Darlington, PA 16115 Frost Dates
16115, near Darlington, PA: the frost window
Typically, the last spring freeze lands around 04/22, roughly 237 days out. Fall's first freeze usually shows up around 10/28, roughly 186 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Darlington in Zone 6b (-5 to 0°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
Darlington's growing season runs out in roughly 9 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
04/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/08 and only about 1 year in 10 sees frost after that.
Darlington against the rest of the dataset
About 186 days separate Darlington's last and first frost, putting it 22,945 of 40,283 ZIP codes nationally. Within PA, it ranks 685 of 2,088.
Learn more
Two guides worth reading on 16115: zone vs. frost date, on why Zone 6b and Darlington's frost date answer different questions, and the frost range, on how to read the range around Darlington's dates instead of trusting one.