Curwensville, PA 16833 Frost Dates
Curwensville, 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.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Curwensville, not a forecast for this year.
Stretching the season past the first frost
With roughly 6 weeks until Curwensville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Curwensville'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.
Curwensville against the rest of the dataset
Curwensville's growing season runs about 161 days, ranking 32,055 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,677 of 2,088.
Learn more
Before leaning on 16833's figures: the frost range explains how to read the range around Curwensville's dates instead of trusting one, while local microclimates explains what one yard in Curwensville can differ from the 16833 normal.