Clearfield, PA 16855 Frost Dates
Clearfield, PA: when does the frost end?
The last spring frost here typically falls around 05/04, about 249 days from today. Fall's first freeze usually shows up around 10/11, roughly 161 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Clearfield in Zone 6a (-10 to -5°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
With roughly 6 weeks until Clearfield's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Clearfield's last frost
05/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/22 and only about 1 year in 10 sees frost after that.
Clearfield against the rest of the dataset
At roughly 161 frost-free days, Clearfield places 32,023 of 40,283 ZIP codes in this dataset. Within PA, it ranks 1,675 of 2,088.
Learn more
Before leaning on 16855's figures: the frost range explains how to read the range around Clearfield's dates instead of trusting one, while local microclimates explains what one yard in Clearfield can differ from the 16855 normal.