Knox County · Tennessee
Knoxville, TN weather averages
NOAA climate normals for 1991-2020, measured at Knoxville Ap, 17 km from the city centre — month by month temperature, rain and snow.
Quick answer
Knoxville averages a daily high of 69.6°F and a daily low of 48.8°F across the year, with 47.86 inches of precipitation. July is the warmest month at 88.2°F and January the coldest at 29.2°F.
- Average annual high
- 69.6°FWarmest month July
- Average annual low
- 48.8°FColdest month January
- Precipitation per year
- 47.86 inWettest month July
- Snowfall per year
- 6.5 in67 days at or below 32°F
Knoxville weather month by month
Normal daily high and low, precipitation and snowfall for each month, 1991-2020.
| Month | High °F | Low °F | Precip in | Snow in | Range |
|---|---|---|---|---|---|
| January | 47.3 | 29.2 | 4.32 | 2.7 | 29.2 to 47.3 degrees |
| February | 52.3 | 32.4 | 4.26 | 1.6 | 32.4 to 52.3 degrees |
| March | 61.4 | 39.2 | 4.34 | 0.9 | 39.2 to 61.4 degrees |
| April | 70.3 | 47.3 | 4.01 | 0.5 | 47.3 to 70.3 degrees |
| May | 78.1 | 56.2 | 4.51 | 0 | 56.2 to 78.1 degrees |
| June | 85.4 | 64.7 | 3.81 | 0 | 64.7 to 85.4 degrees |
| July | 88.2 | 68.7 | 5.08 | 0 | 68.7 to 88.2 degrees |
| August | 87.8 | 67.8 | 3.27 | 0 | 67.8 to 87.8 degrees |
| September | 81.8 | 60.4 | 3.24 | 0 | 60.4 to 81.8 degrees |
| October | 71.2 | 48.5 | 2.51 | 0 | 48.5 to 71.2 degrees |
| November | 60.4 | 39 | 4.01 | 0 | 39 to 60.4 degrees |
| December | 49.8 | 31.7 | 4.5 | 0.8 | 31.7 to 49.8 degrees |
Source: NOAA NCEI, U.S. Climate Normals 1991-2020 — station USW00013891, Knoxville Ap · rates as published for 1991-2020 normals
How to read Knoxville climate normals
What a climate normal is, and what it is not.
A normal is the average of thirty years of daily observations at one station — here Knoxville Ap, 17 km from the centre of Knoxville. It describes a typical year, so any single year will run warmer, cooler, wetter or drier. Readings taken at an airport on the edge of town usually sit a degree or two below a dense downtown on summer nights. Knoxville sees about 31.4 days a year at or above 90°F and about 84.2 days with a tenth of an inch of precipitation or more.
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Other Knoxville data on this site.