Weather on August 20
Knoxville, TN
55 Years of Data
Avg High
88°F
Avg Low
66°F
Warmest
1983
86°F avg
Coldest
2024
69°F avg
About This Date
August 20th in Knoxville, TN typically brings warm summer weather, with average highs around 88°F and lows near 66°F. Over 55 years of records, the warmest August 20th was in 1983 (86°F average), while the coldest was 2024 (69°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 29% of August 20th dates historically, with the wettest August 20th recording 2.49" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 20th in Knoxville, TN? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 68° | 81° | — | — |
| 2024coldest | 79° | 59° | 69° | — | — |
| 2023 | 87° | 60° | 74° | — | — |
| 2022 | 89° | 64° | 77° | — | — |
| 2021 | 88° | 69° | 78° | — | — |
| 2020 | 87° | 64° | 76° | — | — |
| 2019 | 95° | 66° | 81° | — | — |
| 2018 | 87° | 70° | 78° | — | — |
| 2017 | 89° | 65° | 77° | — | — |
| 2016 | 88° | 71° | 79° | — | — |
| 2015 | 85° | 71° | 78° | 1.27" | — |
| 2014 | 84° | 67° | 75° | 0.38" | — |
| 2013 | 80° | 67° | 73° | — | — |
| 2012 | 81° | 60° | 70° | 0.05" | — |
| 2011 | 89° | 65° | 77° | 1.09" | — |
| 2010 | 85° | 69° | 77° | 0.05" | — |
| 2009 | 84° | 68° | 76° | 2.49" | — |
| 2008 | 91° | 63° | 77° | — | — |
| 2007 | 97° | 69° | 83° | — | — |
| 2006 | 92° | 68° | 80° | — | — |
| 2005 | 92° | 72° | 82° | — | — |
| 2004 | 87° | 64° | 76° | — | — |
| 2003 | 89° | 67° | 78° | — | — |
| 2002 | 88° | 68° | 78° | 1.09" | — |
| 2001 | 87° | 65° | 76° | 1.8" | — |
| 2000 | 87° | 65° | 76° | — | — |
| 1999 | 97° | 66° | 81° | 0.46" | — |
| 1998 | 85° | 62° | 73° | — | — |
| 1997 | 90° | 64° | 77° | 1.24" | — |
| 1996 | 90° | 67° | 78° | — | — |
| 1995 | 98° | 71° | 85° | 0.08" | — |
| 1994 | 87° | 63° | 75° | 0.3" | — |
| 1993 | 91° | 67° | 79° | — | — |
| 1992 | 82° | 62° | 72° | — | — |
| 1991 | 85° | 57° | 71° | 2.16" | — |
| 1990 | 94° | 65° | 79° | — | — |
| 1989 | 83° | 61° | 72° | — | — |
| 1988 | 93° | 71° | 82° | 1.14" | — |
| 1987 | 93° | 61° | 77° | — | — |
| 1986 | 88° | 67° | 77° | 0.1" | — |
| 1985 | 89° | 65° | 77° | — | — |
| 1984 | 85° | 63° | 74° | — | — |
| 1983warmest | 100° | 71° | 86° | — | — |
| 1982 | 87° | 69° | 78° | — | — |
| 1981 | 82° | 64° | 73° | — | — |
| 1980 | 92° | 70° | 81° | 2.06" | — |
| 1979 | 88° | 71° | 79° | — | — |
| 1978 | 88° | 74° | 81° | — | — |
| 1977 | 80° | 61° | 70° | — | — |
| 1976 | 85° | 61° | 73° | — | — |
| 1975 | 87° | 69° | 78° | — | — |
| 1974 | 86° | 65° | 75° | — | — |
| 1973 | 84° | 67° | 75° | — | — |
| 1972 | 92° | 71° | 81° | — | — |
| 1971 | 87° | 67° | 77° | — | — |
55 years of data from KNOXVILLE UNIV OF TENN