Mount Washington, KY 40047 Frost Dates
40047, near Mount Washington, KY: the frost window
Around 04/06 is the usual last spring frost, about 221 days away. Fall's first freeze usually shows up around 11/01, roughly 209 days after the last spring frost.
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 Mount Washington, not a forecast for this year.
Stretching the season past the first frost
Mount Washington's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/23 and only about 1 year in 10 sees frost after that.
Mount Washington against the rest of the dataset
Mount Washington's growing season runs about 209 days, ranking 15,155 of 40,283 US ZIP codes measured here, longest to shortest. Within KY, it ranks 137 of 909.
Learn more
Two guides worth reading on 40047: the frost range, on how to read the range around Mount Washington's dates instead of trusting one, and local microclimates, on what one yard in Mount Washington can differ from the 40047 normal.