New Cumberland, PA 17122 Frost Dates
Frost dates for New Cumberland, PA, ZIP 17122
Around 04/09 is the usual last spring frost, about 224 days away. The first fall frost typically arrives around 11/01, about 205 frost-free days later.
The USDA Plant Hardiness Zone Map puts New Cumberland in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 7a around New Cumberland has about 9 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around New Cumberland's last frost
04/09 is the middle of 30 years of NOAA records, not a promise. Plant by 03/27 and you're betting against frost in roughly 9 years out of 10. 04/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How New Cumberland compares
At roughly 205 frost-free days, New Cumberland places 16,229 of 40,283 ZIP codes in this dataset. Within PA, it ranks 140 of 2,088.
Learn more
zone vs. frost date explains why Zone 7a and New Cumberland's frost date answer different questions, and the frost range explains how to read the range around New Cumberland's dates instead of trusting one.