Hardinsburg, KY 40178 Frost Dates
40178, near Hardinsburg, KY: the frost window
Around 04/11 is the usual last spring frost, about 226 days away. Fall's first freeze usually shows up around 10/26, roughly 196 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Hardinsburg in Zone 6b (-5 to 0°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
Hardinsburg'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.
How much risk comes with planting early here
04/11 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 04/28 and only about 1 year in 10 sees frost after that.
Hardinsburg against the rest of the dataset
At roughly 196 frost-free days, Hardinsburg places 18,992 of 40,283 ZIP codes in this dataset. Within KY, it ranks 383 of 909.
Learn more
Two guides worth reading on 40178: local microclimates, on what one yard in Hardinsburg can differ from the 40178 normal, and zone vs. frost date, on why Zone 6b and Hardinsburg's frost date answer different questions.