Lanesboro, PA 18847 Frost Dates
Frost dates for Lanesboro, PA, ZIP 18847
Around 05/12 is the usual last spring frost, about 257 days away. The first fall frost typically arrives around 10/09, about 152 frost-free days later.
The USDA Plant Hardiness Zone Map puts Lanesboro in Zone 5b (-15 to -10°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 5b around Lanesboro has about 6 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 Lanesboro's last frost
05/12 is the middle of 30 years of NOAA records, not a promise. Plant by 04/26 and you're betting against frost in roughly 9 years out of 10. 05/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lanesboro compares
Lanesboro's growing season runs about 152 days, ranking 34,863 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,922 of 2,088.
Learn more
zone vs. frost date explains why Zone 5b and Lanesboro's frost date answer different questions, and the frost range explains how to read the range around Lanesboro's dates instead of trusting one.