FrostDateCheck

London, KY 40745 Frost Dates

Frost dates for London, KY, ZIP 40745

Zone 7a

The last spring frost here typically falls around 04/15, about 230 days from today. The first fall frost typically arrives around 10/25, about 192 frost-free days later.

The USDA Plant Hardiness Zone Map puts London 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 London 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 London's last frost

04/15 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.

How London compares

At roughly 192 frost-free days, London places 20,248 of 40,283 ZIP codes in this dataset. Within KY, it ranks 444 of 909.

Learn more

the frost range explains how to read the range around London's dates instead of trusting one, and local microclimates explains what one yard in London can differ from the 40745 normal.