Donegal, PA 15462 Frost Dates
Donegal, PA: when does the frost end?
Around 05/01 is the usual last spring frost, about 246 days away. Fall's first freeze usually shows up around 10/13, roughly 164 days after the last spring frost.
Donegal 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
With roughly 7 weeks until Donegal's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Donegal's last frost
05/01 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 05/19 and only about 1 year in 10 sees frost after that.
Donegal against the rest of the dataset
About 164 days separate Donegal's last and first frost, putting it 31,244 of 40,283 ZIP codes nationally. Within PA, it ranks 1,636 of 2,088.
Learn more
Before leaning on 15462's figures: local microclimates explains what one yard in Donegal can differ from the 15462 normal, while zone vs. frost date explains why Zone 6a and Donegal's frost date answer different questions.