London, KY 40742 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.
London sits in USDA Zone 7a (0 to 5°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
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.
How much risk comes with planting early here
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 20,245 of 40,283 US ZIP codes measured here, longest to shortest. Within KY, it ranks 441 of 909.
Learn more
Before leaning on 40742's figures: zone vs. frost date explains why Zone 7a and London's frost date answer different questions, while the frost range explains how to read the range around London's dates instead of trusting one.