Last frost date in Knoxville, Tennessee
April 11
Average last frost in spring. In an early year (1 in 10) it's over by March 26; in a late year (1 in 10) it comes after April 29.
October 28
Average first frost in fall. 1 year in 10 it comes by October 13.
Source: NOAA U.S. Climate Normals 1991–2020, station Knoxville Exp Stn (USC00404946), 5 miles from Knoxville, elevation 830 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Mar 26 | Apr 11 | Apr 29 |
| First frost in fall | Oct 13 | Oct 28 | Nov 9 |
Frost-free days in an average year: 198
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 24 | Oct 19 |
| Frost (32°F) | Every year | Apr 11 | Oct 28 |
| Hard freeze (28°F) | Every year | Mar 31 | Nov 6 |
Nights at 32°F or colder in an average year: 87
What to plant now in Knoxville
- Corn saladSept 15 – Nov 1Now
- Upland cressSept 15 – Nov 1Now
- Rhubarb plantsNov 1 – Dec 1Soon
- Asparagus plantsNov 15 – Jan 1Soon
- Spring planting calendar for an average last frost around April 10 Knoxville: April 11
- Fall planting calendar for an average first frost around October 30 Knoxville: October 28
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Tennessee
- Clinton 13 mi · last frost Mar 31
- Farragut 14 mi · last frost Apr 5
- Maryville 15 mi · last frost Apr 1
- Oak Ridge 19 mi · last frost Apr 5
- Sevierville 21 mi · last frost Apr 6
Updated