Continental, OH 45831 Frost Dates
45831, near Continental, OH: the frost window
Around 04/28 is the usual last spring frost, about 243 days away. Fall's first freeze usually shows up around 10/17, roughly 170 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Continental in Zone 6a (-10 to -5°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
Continental's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/28 isn't a guarantee
04/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Continental against the rest of the dataset
Continental's growing season runs about 170 days, ranking 29,109 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 1,176 of 1,383.
Learn more
Two guides worth reading on 45831: the frost range, on how to read the range around Continental's dates instead of trusting one, and local microclimates, on what one yard in Continental can differ from the 45831 normal.