Coolville, OH 45723 Frost Dates
45723, near Coolville, OH: the frost window
Around 04/14 is the usual last spring frost, about 229 days away. Fall's first freeze usually shows up around 10/30, roughly 197 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Coolville in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Coolville's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/02 and only about 1 year in 10 sees frost after that.
Coolville against the rest of the dataset
Coolville's growing season runs about 197 days, ranking 18,797 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 106 of 1,383.
Learn more
Two guides worth reading on 45723: local microclimates, on what one yard in Coolville can differ from the 45723 normal, and zone vs. frost date, on why Zone 6b and Coolville's frost date answer different questions.