Harrisville, OH 43974 Frost Dates
Harrisville, OH: when does the frost end?
Around 04/18 is the usual last spring frost, about 233 days away. Fall's first freeze usually shows up around 11/01, roughly 196 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Harrisville 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 9 weeks until Harrisville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/18 isn't a guarantee
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 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.
Harrisville against the rest of the dataset
About 196 days separate Harrisville's last and first frost, putting it 19,097 of 40,283 ZIP codes nationally. Within OH, it ranks 128 of 1,383.
Learn more
Before leaning on 43974's figures: zone vs. frost date explains why Zone 6b and Harrisville's frost date answer different questions, while the frost range explains how to read the range around Harrisville's dates instead of trusting one.