Youngstown, OH 44509 Frost Dates
Frost dates for Youngstown, OH, ZIP 44509
The last spring frost here typically falls around 05/01, about 246 days from today. The first fall frost typically arrives around 10/17, about 167 frost-free days later.
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 Youngstown, not a forecast for this year.
What to do before the first frost
Zone 6a 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.
How much risk comes with planting early here
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/16 and you're betting against frost in roughly 9 years out of 10. 05/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Youngstown compares
About 167 days separate Youngstown's last and first frost, putting it 29,851 of 40,283 ZIP codes nationally. Within OH, it ranks 1,218 of 1,383.
Learn more
zone vs. frost date explains why Zone 6a and Youngstown's frost date answer different questions, and the frost range explains how to read the range around Youngstown's dates instead of trusting one.