Grayson, KY 41168 Frost Dates
41168, near Grayson, KY: the frost window
Around 04/27 is the usual last spring frost, about 242 days away. Fall's first freeze usually shows up around 10/17, roughly 172 days after the last spring frost.
Grayson 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
Grayson's growing season runs out in roughly 7 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
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/15 and only about 1 year in 10 sees frost after that.
Grayson against the rest of the dataset
Grayson's growing season runs about 172 days, ranking 28,292 of 40,283 US ZIP codes measured here, longest to shortest. Within KY, it ranks 857 of 909.
Learn more
Two guides worth reading on 41168: local microclimates, on what one yard in Grayson can differ from the 41168 normal, and zone vs. frost date, on why Zone 6b and Grayson's frost date answer different questions.