Hyden, KY 40827 Frost Dates
40827, near Hyden, KY: the frost window
Around 04/15 is the usual last spring frost, about 230 days away. Fall's first freeze usually shows up around 10/30, roughly 197 days after the last spring frost.
Hyden 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
Hyden'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.
Why 04/15 isn't a guarantee
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 05/01 and only about 1 year in 10 sees frost after that.
Hyden against the rest of the dataset
Hyden's growing season runs about 197 days, ranking 18,827 of 40,283 US ZIP codes measured here, longest to shortest. Within KY, it ranks 338 of 909.
Learn more
Two guides worth reading on 40827: the frost range, on how to read the range around Hyden's dates instead of trusting one, and local microclimates, on what one yard in Hyden can differ from the 40827 normal.