London, KY 40755 Frost Dates
London, KY: when does the frost end?
Typically, the last spring freeze lands around 04/15, roughly 230 days out. Fall's first freeze usually shows up around 10/25, roughly 192 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 8 weeks until London's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/15 isn't a guarantee
04/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/03 and only about 1 year in 10 sees frost after that.
London against the rest of the dataset
London's growing season runs about 192 days, ranking 20,249 of 40,283 US ZIP codes measured here, longest to shortest. Within KY, it ranks 445 of 909.
Learn more
Before leaning on 40755's figures: local microclimates explains what one yard in London can differ from the 40755 normal, while zone vs. frost date explains why Zone 7a and London's frost date answer different questions.