August weather in Knoxville, TN
The average temperature in Knoxville in August is 76.4°F (64.8°F–87.9°F). Average precipitation: 3.42 inches.
August is a summer month in Knoxville, and is warmer than the annual average of 57.9°F. Daily temperatures swing about 23.1°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 13h 22m. For travel, August is a comfortable month to visit.
Avg High
87.9°F
Avg Low
64.8°F
Precipitation
3.42 in
Daylight
13h 22m
August records in Knoxville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 98.1°F (1995) | 53.1°F (1993) | 1.92 in (1996) |
| August 2 | 96.1°F (1999) | 53.1°F (1993) | 1.75 in (2022) |
| August 3 | 95.0°F (1995) | 55.9°F (1998) | 2.46 in (1969) |
| August 4 | 96.1°F (2016) | 55.9°F (1998) | 1.37 in (1971) |
| August 5 | 95.0°F (1981) | 55.9°F (1998) | 1.87 in (1990) |
| August 6 | 95.0°F (2005) | 59.0°F (1969) | 1.31 in (1993) |
| August 7 | 96.1°F (1991) | 52.0°F (2004) | 1.86 in (1992) |
| August 8 | 96.1°F (1968) | 51.1°F (1989) | 1.84 in (2017) |
| August 9 | 97.0°F (2007) | 52.0°F (1989) | 1.23 in (1991) |
| August 10 | 97.0°F (2007) | 55.0°F (1989) | 2.20 in (2012) |
| August 11 | 97.0°F (2006) | 55.9°F (1989) | 2.99 in (2023) |
| August 12 | 97.0°F (2010) | 54.0°F (1982) | 3.00 in (1980) |
| August 13 | 96.1°F (2007) | 55.0°F (1979) | 2.11 in (2017) |
| August 14 | 99.0°F (2010) | 55.9°F (2004) | 2.52 in (2012) |
| August 15 | 97.0°F (1995) | 55.9°F (2004) | 0.93 in (1998) |
| August 16 | 98.1°F (1995) | 52.0°F (1979) | 1.12 in (2024) |
| August 17 | 102.0°F (2007) | 53.1°F (1979) | 2.88 in (1982) |
| August 18 | 99.0°F (1988) | 57.0°F (1979) | 3.10 in (2021) |
| August 19 | 98.1°F (1988) | 60.1°F (1982) | 1.21 in (2015) |
| August 20 | 100.0°F (1983) | 57.0°F (1991) | 2.03 in (1966) |
| August 21 | 102.0°F (1983) | 50.0°F (1982) | 2.14 in (1993) |
| August 22 | 100.9°F (1983) | 54.0°F (1982) | 2.65 in (1969) |
| August 23 | 100.0°F (1968) | 52.0°F (1997) | 1.33 in (2021) |
| August 24 | 100.9°F (2007) | 51.1°F (1997) | 1.25 in (1989) |
| August 25 | 100.0°F (2007) | 55.0°F (1982) | 1.18 in (1985) |
| August 26 | 97.0°F (1995) | 55.0°F (1966) | 1.41 in (2004) |
| August 27 | 96.1°F (2016) | 54.0°F (1966) | 1.12 in (1967) |
| August 28 | 97.0°F (2016) | 50.0°F (1968) | 1.17 in (1992) |
| August 29 | 97.0°F (2024) | 48.0°F (1968) | 1.63 in (2006) |
| August 30 | 97.0°F (2024) | 51.1°F (1968) | 1.19 in (2023) |
| August 31 | 96.1°F (1995) | 51.1°F (1992) | 2.12 in (2020) |