Clay City, KY 40312 Frost Dates
40312, near Clay City, KY: the frost window
Around 04/19 is the usual last spring frost, about 234 days away. Fall's first freeze usually shows up around 10/20, roughly 184 days after the last spring frost.
Clay City sits in USDA Zone 6b (-5 to 0°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
Clay City'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.
The actual range around Clay City's last frost
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Clay City against the rest of the dataset
Clay City's growing season runs about 184 days, ranking 23,585 of 40,283 US ZIP codes measured here, longest to shortest. Within KY, it ranks 707 of 909.
Learn more
Two guides worth reading on 40312: zone vs. frost date, on why Zone 6b and Clay City's frost date answer different questions, and the frost range, on how to read the range around Clay City's dates instead of trusting one.