Youngstown, PA 15693 Frost Dates
Frost dates for Youngstown, PA, ZIP 15693
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 Youngstown 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 Youngstown 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 Youngstown compares
Youngstown's growing season runs about 164 days, ranking 31,199 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,626 of 2,088.
Learn more
the frost range explains how to read the range around Youngstown's dates instead of trusting one, and local microclimates explains what one yard in Youngstown can differ from the 15693 normal.