Lexington, TN 38345 Frost Dates
38345, near Lexington, TN: the frost window
Typically, the last spring freeze lands around 04/05, roughly 220 days out. Fall's first freeze usually shows up around 10/30, roughly 208 days after the last spring frost.
Lexington sits in USDA Zone 7b (5 to 10°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
Lexington'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
04/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/21 and only about 1 year in 10 sees frost after that.
Lexington against the rest of the dataset
About 208 days separate Lexington's last and first frost, putting it 15,565 of 40,283 ZIP codes nationally. Within TN, it ranks 357 of 770.
Learn more
Two guides worth reading on 38345: local microclimates, on what one yard in Lexington can differ from the 38345 normal, and zone vs. frost date, on why Zone 7b and Lexington's frost date answer different questions.