Riverlea, OH 43214 Frost Dates
43214, near Riverlea, OH: the frost window
Typically, the last spring freeze lands around 04/20, roughly 235 days out. Fall's first freeze usually shows up around 10/24, roughly 185 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Riverlea 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
Riverlea's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/20 isn't a guarantee
04/20 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 05/07 and only about 1 year in 10 sees frost after that.
Riverlea against the rest of the dataset
Riverlea's growing season runs about 185 days, ranking 23,273 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 576 of 1,383.
Learn more
Two guides worth reading on 43214: zone vs. frost date, on why Zone 6b and Riverlea's frost date answer different questions, and the frost range, on how to read the range around Riverlea's dates instead of trusting one.