Lima, OH 45802 Frost Dates
45802, near Lima, OH: the frost window
Around 04/22 is the usual last spring frost, about 237 days away. Fall's first freeze usually shows up around 10/22, roughly 181 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 Lima, not a forecast for this year.
Stretching the season past the first frost
Lima'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.
The actual range around Lima's last frost
04/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/07 and only about 1 year in 10 sees frost after that.
Lima against the rest of the dataset
Lima's growing season runs about 181 days, ranking 24,443 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 756 of 1,383.
Learn more
Two guides worth reading on 45802: zone vs. frost date, on why Zone 6b and Lima's frost date answer different questions, and the frost range, on how to read the range around Lima's dates instead of trusting one.