Catawissa, PA 17820 Frost Dates
Catawissa, PA: when does the frost end?
The last spring frost here typically falls around 04/27, about 242 days from today. Fall's first freeze usually shows up around 10/20, roughly 172 days after the last spring frost.
Catawissa sits in USDA Zone 6b (-5 to 0°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 8 weeks until Catawissa's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/15 and only about 1 year in 10 sees frost after that.
Catawissa against the rest of the dataset
About 172 days separate Catawissa's last and first frost, putting it 28,367 of 40,283 ZIP codes nationally. Within PA, it ranks 1,373 of 2,088.
Learn more
Before leaning on 17820's figures: local microclimates explains what one yard in Catawissa can differ from the 17820 normal, while zone vs. frost date explains why Zone 6b and Catawissa's frost date answer different questions.