Clarksville, OH 45054 Frost Dates
Clarksville, OH: when does the frost end?
Typically, the last spring freeze lands around 04/19, roughly 234 days out. Fall's first freeze usually shows up around 10/22, roughly 185 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Clarksville 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
With roughly 8 weeks until Clarksville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/19 isn't a guarantee
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Clarksville against the rest of the dataset
Clarksville's growing season runs about 185 days, ranking 23,284 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 579 of 1,383.
Learn more
Before leaning on 45054's figures: local microclimates explains what one yard in Clarksville can differ from the 45054 normal, while zone vs. frost date explains why Zone 6b and Clarksville's frost date answer different questions.