Columbiana, OH 44452 Frost Dates
44452, near Columbiana, OH: the frost window
Typically, the last spring freeze lands around 05/01, roughly 246 days out. Fall's first freeze usually shows up around 10/17, roughly 167 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Columbiana 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
Columbiana'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 Columbiana's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 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.
Columbiana against the rest of the dataset
Columbiana's growing season runs about 167 days, ranking 29,942 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 1,256 of 1,383.
Learn more
Two guides worth reading on 44452: the frost range, on how to read the range around Columbiana's dates instead of trusting one, and local microclimates, on what one yard in Columbiana can differ from the 44452 normal.