Clay Center, OH 43412 Frost Dates
Frost dates for Clay Center, OH, ZIP 43412
Typically, the last spring freeze lands around 04/20, roughly 235 days out. The first fall frost typically arrives around 10/27, about 188 frost-free days later.
Zone 6b (-5 to 0°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 Clay Center, not a forecast for this year.
What to do before the first frost
Zone 6b around Clay Center has about 9 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
04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Clay Center compares
At roughly 188 frost-free days, Clay Center places 22,206 of 40,283 ZIP codes in this dataset. Within OH, it ranks 413 of 1,383.
Learn more
zone vs. frost date explains why Zone 6b and Clay Center's frost date answer different questions, and the frost range explains how to read the range around Clay Center's dates instead of trusting one.