St. Bernard, OH 45222 Frost Dates
Frost dates for St. Bernard, OH, ZIP 45222
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.
St. Bernard sits in USDA Zone 6b (-5 to 0°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 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.
The actual range around St. Bernard's last frost
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 19,894 of 40,283 ZIP codes nationally. Within OH, it ranks 181 of 1,383.
Learn more
local microclimates explains what one yard in St. Bernard can differ from the 45222 normal, and zone vs. frost date explains why Zone 6b and St. Bernard's frost date answer different questions.