St. Bernard, OH 45262 Frost Dates
Frost dates for St. Bernard, OH, ZIP 45262
Typically, the last spring freeze lands around 04/16, roughly 231 days out. The first fall frost typically arrives around 10/28, about 193 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 St. Bernard, not a forecast for this year.
What to do before the first frost
Zone 6b around St. Bernard 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.
Why 04/16 isn't a guarantee
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 04/02 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How St. Bernard compares
About 193 days separate St. Bernard's last and first frost, putting it 19,901 of 40,283 ZIP codes nationally. Within OH, it ranks 188 of 1,383.
Learn more
zone vs. frost date explains why Zone 6b and St. Bernard's frost date answer different questions, and the frost range explains how to read the range around St. Bernard's dates instead of trusting one.