New Columbus, PA 18622 Frost Dates
18622, near New Columbus, PA: the frost window
The last spring frost here typically falls around 05/06, about 251 days from today. Fall's first freeze usually shows up around 10/07, roughly 154 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 New Columbus, not a forecast for this year.
Stretching the season past the first frost
New Columbus's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around New Columbus's last frost
05/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 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.
New Columbus against the rest of the dataset
New Columbus's growing season runs about 154 days, ranking 34,451 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,914 of 2,088.
Learn more
Two guides worth reading on 18622: the frost range, on how to read the range around New Columbus's dates instead of trusting one, and local microclimates, on what one yard in New Columbus can differ from the 18622 normal.