Jeannette, PA 15634 Frost Dates
Frost dates for Jeannette, PA, ZIP 15634
Around 05/01 is the usual last spring frost, about 246 days away. The first fall frost typically arrives around 10/13, about 164 frost-free days later.
The USDA Plant Hardiness Zone Map puts Jeannette in Zone 6b (-5 to 0°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 6b around Jeannette has about 7 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.
Why 05/01 isn't a guarantee
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 and you're betting against frost in roughly 9 years out of 10. 05/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Jeannette compares
About 164 days separate Jeannette's last and first frost, putting it 30,888 of 40,283 ZIP codes nationally. Within PA, it ranks 1,559 of 2,088.
Learn more
zone vs. frost date explains why Zone 6b and Jeannette's frost date answer different questions, and the frost range explains how to read the range around Jeannette's dates instead of trusting one.