Lyons, OH 49248 Frost Dates
49248, near Lyons, OH: the frost window
Around 04/27 is the usual last spring frost, about 242 days away. Fall's first freeze usually shows up around 10/20, roughly 173 days after the last spring frost.
Lyons sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Lyons'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 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Lyons against the rest of the dataset
Lyons's growing season runs about 173 days, ranking 28,033 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 1,101 of 1,383.
Learn more
Two guides worth reading on 49248: local microclimates, on what one yard in Lyons can differ from the 49248 normal, and zone vs. frost date, on why Zone 6a and Lyons's frost date answer different questions.