Lewisburg, KY 42216 Frost Dates
42216, near Lewisburg, KY: the frost window
The last spring frost here typically falls around 04/03, about 218 days from today. Fall's first freeze usually shows up around 10/29, roughly 207 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Lewisburg in Zone 7a (0 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
Lewisburg's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/03 isn't a guarantee
04/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/21 and only about 1 year in 10 sees frost after that.
Lewisburg against the rest of the dataset
At roughly 207 frost-free days, Lewisburg places 15,858 of 40,283 ZIP codes in this dataset. Within KY, it ranks 174 of 909.
Learn more
Two guides worth reading on 42216: zone vs. frost date, on why Zone 7a and Lewisburg's frost date answer different questions, and the frost range, on how to read the range around Lewisburg's dates instead of trusting one.