Lenoir City, TN 37771 Frost Dates
Frost dates for Lenoir City, TN, ZIP 37771
Typically, the last spring freeze lands around 04/05, roughly 220 days out. The first fall frost typically arrives around 11/01, about 210 frost-free days later.
The USDA Plant Hardiness Zone Map puts Lenoir City in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 7b around Lenoir City has about 9 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 04/05 isn't a guarantee
04/05 is the middle of 30 years of NOAA records, not a promise. Plant by 03/19 and you're betting against frost in roughly 9 years out of 10. 04/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lenoir City compares
About 210 days separate Lenoir City's last and first frost, putting it 14,987 of 40,283 ZIP codes nationally. Within TN, it ranks 327 of 770.
Learn more
local microclimates explains what one yard in Lenoir City can differ from the 37771 normal, and zone vs. frost date explains why Zone 7b and Lenoir City's frost date answer different questions.