Smithfield, KY 40068 Frost Dates
Smithfield, KY: when does the frost end?
The last spring frost here typically falls around 04/12, about 227 days from today. Fall's first freeze usually shows up around 10/25, roughly 193 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Smithfield in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 8 weeks until Smithfield's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Smithfield's last frost
04/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/29 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.
Smithfield against the rest of the dataset
About 193 days separate Smithfield's last and first frost, putting it 20,085 of 40,283 ZIP codes nationally. Within KY, it ranks 420 of 909.
Learn more
Before leaning on 40068's figures: local microclimates explains what one yard in Smithfield can differ from the 40068 normal, while zone vs. frost date explains why Zone 6b and Smithfield's frost date answer different questions.