Allen, KY 41642 Frost Dates
41642, near Allen, KY: the frost window
Around 04/23 is the usual last spring frost, about 238 days away. Fall's first freeze usually shows up around 10/23, roughly 183 days after the last spring frost.
Zone 7a (0 to 5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Allen, not a forecast for this year.
Stretching the season past the first frost
Allen'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
04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/08 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/10 and only about 1 year in 10 sees frost after that.
Allen against the rest of the dataset
About 183 days separate Allen's last and first frost, putting it 24,038 of 40,283 ZIP codes nationally. Within KY, it ranks 765 of 909.
Learn more
Two guides worth reading on 41642: local microclimates, on what one yard in Allen can differ from the 41642 normal, and zone vs. frost date, on why Zone 7a and Allen's frost date answer different questions.