Jellico, TN 37819 Frost Dates
Frost dates for Jellico, TN, ZIP 37819
Typically, the last spring freeze lands around 04/18, roughly 233 days out. The first fall frost typically arrives around 10/24, about 187 frost-free days later.
Jellico 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.
What to do before the first frost
Zone 7a around Jellico has about 8 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 04/18 isn't a guarantee
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Jellico compares
At roughly 187 frost-free days, Jellico places 22,419 of 40,283 ZIP codes in this dataset. Within TN, it ranks 703 of 770.
Learn more
local microclimates explains what one yard in Jellico can differ from the 37819 normal, and zone vs. frost date explains why Zone 7a and Jellico's frost date answer different questions.