Old Washington, OH 43768 Frost Dates
Old Washington, OH: when does the frost end?
The last spring frost here typically falls around 04/30, about 245 days from today. Fall's first freeze usually shows up around 10/14, roughly 167 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Old Washington 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 7 weeks until Old Washington's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/20 and only about 1 year in 10 sees frost after that.
Old Washington against the rest of the dataset
About 167 days separate Old Washington's last and first frost, putting it 30,203 of 40,283 ZIP codes nationally. Within OH, it ranks 1,354 of 1,383.
Learn more
Before leaning on 43768's figures: the frost range explains how to read the range around Old Washington's dates instead of trusting one, while local microclimates explains what one yard in Old Washington can differ from the 43768 normal.