Youngstown, OH 44503 Frost Dates
When can you plant in Youngstown, OH?
Typically, the last spring freeze lands around 05/01, roughly 246 days out. The first fall frost typically arrives around 10/17, about 167 frost-free days later.
Youngstown sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 7 weeks of growing season left in Youngstown before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/01 isn't a guarantee
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
Youngstown's growing season runs about 167 days, ranking 29,846 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 1,213 of 1,383.
Learn more
zone vs. frost date covers why Zone 6a and Youngstown's frost date answer different questions. the frost range covers how to read the range around Youngstown's dates instead of trusting one.