Fountain Run, KY 42133 Frost Dates
42133, near Fountain Run, KY: the frost window
Typically, the last spring freeze lands around 04/03, roughly 218 days out. Fall's first freeze usually shows up around 11/01, roughly 213 days after the last spring frost.
Fountain Run sits in USDA Zone 7a (0 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
Fountain Run'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.
Fountain Run against the rest of the dataset
At roughly 213 frost-free days, Fountain Run places 14,543 of 40,283 ZIP codes in this dataset. Within KY, it ranks 91 of 909.
Learn more
Two guides worth reading on 42133: zone vs. frost date, on why Zone 7a and Fountain Run's frost date answer different questions, and the frost range, on how to read the range around Fountain Run's dates instead of trusting one.