FrostDateCheck

Moraine, OH 45343 Frost Dates

45343, near Moraine, OH: the frost window

Zone 6b

Typically, the last spring freeze lands around 04/17, roughly 232 days out. Fall's first freeze usually shows up around 10/26, roughly 192 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Moraine 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

Moraine'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 04/17 isn't a guarantee

04/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/03 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.

Moraine against the rest of the dataset

At roughly 192 frost-free days, Moraine places 20,259 of 40,283 ZIP codes in this dataset. Within OH, it ranks 224 of 1,383.

Learn more

Two guides worth reading on 45343: local microclimates, on what one yard in Moraine can differ from the 45343 normal, and zone vs. frost date, on why Zone 6b and Moraine's frost date answer different questions.