Allen, KY 41663 Frost Dates
Frost dates for Allen, KY, ZIP 41663
Typically, the last spring freeze lands around 04/23, roughly 238 days out. The first fall frost typically arrives around 10/23, about 183 frost-free days later.
The USDA Plant Hardiness Zone Map puts Allen in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 7a around Allen has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Allen's last frost
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/08 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Allen compares
Allen's growing season runs about 183 days, ranking 24,039 of 40,283 US ZIP codes measured here, longest to shortest. Within KY, it ranks 766 of 909.
Learn more
local microclimates explains what one yard in Allen can differ from the 41663 normal, and zone vs. frost date explains why Zone 7a and Allen's frost date answer different questions.