Middletown, OH 45042 Frost Dates
45042, near Middletown, OH: the frost window
Around 04/24 is the usual last spring frost, about 239 days away. Fall's first freeze usually shows up around 10/19, roughly 178 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Middletown 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
Middletown'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.
The actual range around Middletown's last frost
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/11 and only about 1 year in 10 sees frost after that.
Middletown against the rest of the dataset
At roughly 178 frost-free days, Middletown places 25,570 of 40,283 ZIP codes in this dataset. Within OH, it ranks 827 of 1,383.
Learn more
Two guides worth reading on 45042: zone vs. frost date, on why Zone 6b and Middletown's frost date answer different questions, and the frost range, on how to read the range around Middletown's dates instead of trusting one.