Bluff City, TN 37669 Frost Dates
When can you plant in Bluff City, TN?
Typically, the last spring freeze lands around 04/16, roughly 231 days out. The first fall frost typically arrives around 10/24, about 190 frost-free days later.
The USDA Plant Hardiness Zone Map puts Bluff 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
About 8 weeks of growing season left in Bluff City before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/16 isn't a guarantee
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 03/30 and you're betting against frost in roughly 9 years out of 10. 05/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bluff City compares
About 190 days separate Bluff City's last and first frost, putting it 21,201 of 40,283 ZIP codes nationally. Within TN, it ranks 663 of 770.
Learn more
local microclimates covers what one yard in Bluff City can differ from the 37669 normal. zone vs. frost date covers why Zone 7b and Bluff City's frost date answer different questions.