Weather on October 20
Chattanooga, TN
55 Years of Data
Avg High
71°F
Avg Low
46°F
Warmest
2016
77°F avg
Coldest
1989
43°F avg
About This Date
October 20th in Chattanooga, TN typically brings pleasant fall weather, with average highs around 71°F and lows near 46°F — a 25°F daily swing. Over 55 years of records, the warmest October 20th was in 2016 (77°F average), while the coldest was 1989 (43°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 25% of October 20th dates historically, with the wettest October 20th recording 2.29" 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 October 20th in Chattanooga, TN? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 42° | 58° | — | — |
| 2024 | 78° | 42° | 60° | — | — |
| 2023 | 75° | 54° | 64° | 0.53" | — |
| 2022 | 62° | 31° | 47° | — | — |
| 2021 | 77° | 48° | 63° | — | — |
| 2020 | 82° | 53° | 68° | — | — |
| 2019 | 73° | 56° | 64° | — | — |
| 2018 | 66° | 51° | 59° | 0.33" | — |
| 2017 | 77° | 44° | 61° | — | — |
| 2016warmest | 89° | 64° | 77° | 0.2" | — |
| 2015 | 70° | 40° | 55° | — | — |
| 2014 | 72° | 43° | 57° | — | — |
| 2013 | 68° | 40° | 54° | — | — |
| 2012 | 68° | 45° | 56° | — | — |
| 2011 | 56° | 44° | 50° | 0.08" | — |
| 2010 | 76° | 49° | 62° | 0.08" | — |
| 2009 | 72° | 38° | 55° | — | — |
| 2008 | 68° | 39° | 54° | — | — |
| 2007 | 77° | 49° | 63° | — | — |
| 2006 | 63° | 40° | 51° | — | — |
| 2005 | 83° | 58° | 70° | — | — |
| 2004 | 73° | 61° | 67° | — | — |
| 2003 | 79° | 47° | 63° | — | — |
| 2002 | 69° | 58° | 63° | 0.08" | — |
| 2001 | 76° | 44° | 60° | — | — |
| 2000 | 76° | 54° | 65° | — | — |
| 1999 | 68° | 45° | 56° | 0.03" | — |
| 1998 | 74° | 57° | 65° | — | — |
| 1997 | 72° | 41° | 56° | — | — |
| 1996 | 68° | 33° | 51° | — | — |
| 1995 | 63° | 42° | 52° | 0.58" | — |
| 1994 | 74° | 55° | 64° | 0.46" | — |
| 1993 | 83° | 65° | 74° | — | — |
| 1992 | 65° | 33° | 49° | — | — |
| 1991 | 71° | 45° | 58° | — | — |
| 1990 | 70° | 39° | 54° | — | — |
| 1989coldest | 48° | 37° | 43° | — | — |
| 1988 | 58° | 41° | 49° | 0.33" | — |
| 1987 | 63° | 51° | 57° | 2.29" | — |
| 1986 | 71° | 44° | 58° | — | — |
| 1985 | 83° | 57° | 70° | — | — |
| 1984 | 82° | 64° | 73° | 0.18" | — |
| 1983 | 76° | 60° | 68° | — | — |
| 1982 | 67° | 51° | 59° | 0.03" | — |
| 1981 | 68° | 32° | 50° | — | — |
| 1980 | 63° | 41° | 52° | — | — |
| 1979 | 80° | 56° | 68° | — | — |
| 1978 | 73° | 40° | 56° | — | — |
| 1977 | 66° | 37° | 52° | — | — |
| 1976 | 60° | 49° | 54° | 0.64" | — |
| 1975 | 66° | 35° | 51° | — | — |
| 1974 | 65° | 33° | 49° | — | — |
| 1973 | 79° | 38° | 58° | — | — |
| 1972 | 55° | 32° | 44° | — | — |
| 1971 | 79° | 56° | 67° | — | — |
55 years of data from CHATTANOOGA AP