Caledonia, OH 43314 Frost Dates
Frost dates for Caledonia, OH, ZIP 43314
Typically, the last spring freeze lands around 04/24, roughly 239 days out. The first fall frost typically arrives around 10/20, about 178 frost-free days later.
Caledonia 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 Caledonia 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.
How much risk comes with planting early here
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 Caledonia compares
Caledonia's growing season runs about 178 days, ranking 25,868 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 880 of 1,383.
Learn more
local microclimates explains what one yard in Caledonia can differ from the 43314 normal, and zone vs. frost date explains why Zone 6a and Caledonia's frost date answer different questions.