Watterson Park, KY 40289 Frost Dates
Watterson Park, KY: when does the frost end?
Typically, the last spring freeze lands around 04/03, roughly 218 days out. Fall's first freeze usually shows up around 11/03, roughly 214 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 Watterson Park, not a forecast for this year.
Stretching the season past the first frost
With roughly 10 weeks until Watterson Park's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/03 isn't a guarantee
04/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/19 and only about 1 year in 10 sees frost after that.
Watterson Park against the rest of the dataset
At roughly 214 frost-free days, Watterson Park places 14,312 of 40,283 ZIP codes in this dataset. Within KY, it ranks 64 of 909.
Learn more
Before leaning on 40289's figures: the frost range explains how to read the range around Watterson Park's dates instead of trusting one, while local microclimates explains what one yard in Watterson Park can differ from the 40289 normal.