Greenville, KY 42345 Frost Dates
42345, near Greenville, KY: the frost window
Around 04/15 is the usual last spring frost, about 230 days away. Fall's first freeze usually shows up around 10/20, roughly 187 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Greenville 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
Greenville'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 04/15 isn't a guarantee
04/15 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 05/03 and only about 1 year in 10 sees frost after that.
Greenville against the rest of the dataset
Greenville's growing season runs about 187 days, ranking 22,363 of 40,283 US ZIP codes measured here, longest to shortest. Within KY, it ranks 649 of 909.
Learn more
Two guides worth reading on 42345: the frost range, on how to read the range around Greenville's dates instead of trusting one, and local microclimates, on what one yard in Greenville can differ from the 42345 normal.