Put-in-Bay, OH 43436 Frost Dates
43436, near Put-in-Bay, OH: the frost window
Around 04/10 is the usual last spring frost, about 225 days away. Fall's first freeze usually shows up around 11/05, roughly 209 days after the last spring frost.
Zone 7a (0 to 5°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 Put-in-Bay, not a forecast for this year.
Stretching the season past the first frost
Put-in-Bay's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/10 isn't a guarantee
04/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/23 and only about 1 year in 10 sees frost after that.
Put-in-Bay against the rest of the dataset
At roughly 209 frost-free days, Put-in-Bay places 15,434 of 40,283 ZIP codes in this dataset. Within OH, it ranks 59 of 1,383.
Learn more
Two guides worth reading on 43436: zone vs. frost date, on why Zone 7a and Put-in-Bay's frost date answer different questions, and the frost range, on how to read the range around Put-in-Bay's dates instead of trusting one.