London, KY 40743 Frost Dates
When can you plant in London, KY?
Around 04/15 is the usual last spring frost, about 230 days away. The first fall frost typically arrives around 10/25, about 192 frost-free days later.
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 London, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in London before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
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
About 192 days separate London's last and first frost, putting it 20,246 of 40,283 ZIP codes nationally. Within KY, it ranks 442 of 909.
Learn more
the frost range covers how to read the range around London's dates instead of trusting one. local microclimates covers what one yard in London can differ from the 40743 normal.