Nicholson, PA 18446 Frost Dates
Nicholson, PA: when does the frost end?
Around 05/14 is the usual last spring frost, about 259 days away. Fall's first freeze usually shows up around 10/01, roughly 140 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 Nicholson, not a forecast for this year.
Stretching the season past the first frost
With roughly 5 weeks until Nicholson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/14 isn't a guarantee
05/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/29 and only about 1 year in 10 sees frost after that.
Nicholson against the rest of the dataset
At roughly 140 frost-free days, Nicholson places 37,108 of 40,283 ZIP codes in this dataset. Within PA, it ranks 2,003 of 2,088.
Learn more
Before leaning on 18446's figures: the frost range explains how to read the range around Nicholson's dates instead of trusting one, while local microclimates explains what one yard in Nicholson can differ from the 18446 normal.