Irvine, KY 40385 Frost Dates
40385, near Irvine, KY: the frost window
Around 04/20 is the usual last spring frost, about 235 days away. Fall's first freeze usually shows up around 10/19, roughly 182 days after the last spring frost.
Irvine 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
Irvine's growing season runs out in roughly 7 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
04/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/08 and only about 1 year in 10 sees frost after that.
Irvine against the rest of the dataset
Irvine's growing season runs about 182 days, ranking 24,178 of 40,283 US ZIP codes measured here, longest to shortest. Within KY, it ranks 773 of 909.
Learn more
Two guides worth reading on 40385: the frost range, on how to read the range around Irvine's dates instead of trusting one, and local microclimates, on what one yard in Irvine can differ from the 40385 normal.