Richmond, KY 40405 Frost Dates
40405, near Richmond, KY: the frost window
The last spring frost here typically falls around 04/15, about 230 days from today. Fall's first freeze usually shows up around 10/22, roughly 190 days after the last spring frost.
Richmond sits in USDA Zone 6b (-5 to 0°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
Richmond's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Richmond's last frost
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 04/30 and only about 1 year in 10 sees frost after that.
Richmond against the rest of the dataset
Richmond's growing season runs about 190 days, ranking 21,033 of 40,283 US ZIP codes measured here, longest to shortest. Within KY, it ranks 529 of 909.
Learn more
Two guides worth reading on 40405: the frost range, on how to read the range around Richmond's dates instead of trusting one, and local microclimates, on what one yard in Richmond can differ from the 40405 normal.