Knoxville, TN 37927 Frost Dates
When can you plant in Knoxville, TN?
The last spring frost here typically falls around 04/01, about 216 days from today. The first fall frost typically arrives around 11/02, about 215 frost-free days later.
Knoxville 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.
What to do before the first frost
About 9 weeks of growing season left in Knoxville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Knoxville's last frost
04/01 is the middle of 30 years of NOAA records, not a promise. Plant by 03/14 and you're betting against frost in roughly 9 years out of 10. 04/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Knoxville compares
About 215 days separate Knoxville's last and first frost, putting it 14,001 of 40,283 ZIP codes nationally. Within TN, it ranks 217 of 770.
Learn more
local microclimates covers what one yard in Knoxville can differ from the 37927 normal. zone vs. frost date covers why Zone 7b and Knoxville's frost date answer different questions.