Adelphi, OH 43152 Frost Dates
43152, near Adelphi, OH: the frost window
The last spring frost here typically falls around 04/30, about 245 days from today. Fall's first freeze usually shows up around 10/14, roughly 167 days after the last spring frost.
Zone 6b (-5 to 0°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Adelphi, not a forecast for this year.
Stretching the season past the first frost
Adelphi'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.
How much risk comes with planting early here
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
Adelphi against the rest of the dataset
At roughly 167 frost-free days, Adelphi places 30,182 of 40,283 ZIP codes in this dataset. Within OH, it ranks 1,340 of 1,383.
Learn more
Two guides worth reading on 43152: the frost range, on how to read the range around Adelphi's dates instead of trusting one, and local microclimates, on what one yard in Adelphi can differ from the 43152 normal.