McComb, OH 45858 Frost Dates
Frost dates for McComb, OH, ZIP 45858
The last spring frost here typically falls around 04/24, about 239 days from today. The first fall frost typically arrives around 10/21, about 179 frost-free days later.
McComb 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
Zone 6a around McComb has about 8 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 McComb's last frost
04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How McComb compares
At roughly 179 frost-free days, McComb places 25,373 of 40,283 ZIP codes in this dataset. Within OH, it ranks 805 of 1,383.
Learn more
the frost range explains how to read the range around McComb's dates instead of trusting one, and local microclimates explains what one yard in McComb can differ from the 45858 normal.