Weather on June 21
Chattanooga, TN
55 Years of Data
Avg High
88°F
Avg Low
67°F
Warmest
2009
88°F avg
Coldest
1992
66°F avg
About This Date
June 21st in Chattanooga, TN typically brings warm summer weather, with average highs around 88°F and lows near 67°F. Over 55 years of records, the warmest June 21st was in 2009 (88°F average), while the coldest was 1992 (66°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 40% of June 21st dates historically, with the wettest June 21st recording 3.81" of rain. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
Planning for June 21st in Chattanooga, TN? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 67° | 79° | — | — |
| 2024 | 97° | 71° | 84° | — | — |
| 2023 | 78° | 68° | 73° | 0.41" | — |
| 2022 | 96° | 63° | 79° | — | — |
| 2021 | 93° | 73° | 83° | 2.06" | — |
| 2020 | 90° | 68° | 79° | 1.37" | — |
| 2019 | 92° | 68° | 80° | 0.36" | — |
| 2018 | 86° | 74° | 80° | 0.71" | — |
| 2017 | 84° | 69° | 77° | — | — |
| 2016 | 92° | 67° | 79° | — | — |
| 2015 | 93° | 72° | 82° | — | — |
| 2014 | 93° | 70° | 81° | 0.41" | — |
| 2013 | 87° | 68° | 78° | — | — |
| 2012 | 94° | 70° | 82° | — | — |
| 2011 | 93° | 70° | 81° | 0.53" | — |
| 2010 | 95° | 71° | 83° | — | — |
| 2009warmest | 98° | 79° | 88° | — | — |
| 2008 | 86° | 66° | 76° | 0.3" | — |
| 2007 | 91° | 61° | 76° | — | — |
| 2006 | 97° | 69° | 83° | — | — |
| 2005 | 83° | 62° | 72° | — | — |
| 2004 | 86° | 71° | 79° | 0.25" | — |
| 2003 | 81° | 59° | 70° | — | — |
| 2002 | 89° | 65° | 77° | — | — |
| 2001 | 89° | 66° | 78° | 0.58" | — |
| 2000 | 90° | 71° | 80° | — | — |
| 1999 | 87° | 62° | 75° | — | — |
| 1998 | 90° | 66° | 78° | 0.1" | — |
| 1997 | 84° | 66° | 75° | 1.63" | — |
| 1996 | 91° | 70° | 80° | — | — |
| 1995 | 81° | 61° | 71° | 0.94" | — |
| 1994 | 94° | 71° | 82° | — | — |
| 1993 | 80° | 72° | 76° | 0.36" | — |
| 1992coldest | 75° | 58° | 66° | — | — |
| 1991 | 88° | 71° | 79° | 0.56" | — |
| 1990 | 80° | 70° | 75° | 1.91" | — |
| 1989 | 81° | 67° | 74° | 1.3" | — |
| 1988 | 98° | 67° | 82° | — | — |
| 1987 | 88° | 69° | 78° | 3.81" | — |
| 1986 | 94° | 68° | 81° | — | — |
| 1985 | 83° | 56° | 69° | — | — |
| 1984 | 86° | 68° | 77° | 0.13" | — |
| 1983 | 87° | 65° | 76° | — | — |
| 1982 | 86° | 58° | 72° | — | — |
| 1981 | 94° | 69° | 81° | — | — |
| 1980 | 81° | 59° | 70° | — | — |
| 1979 | 80° | 71° | 76° | 0.18" | — |
| 1978 | 85° | 69° | 77° | — | — |
| 1977 | 88° | 67° | 77° | — | — |
| 1976 | 74° | 60° | 67° | 1.32" | — |
| 1975 | 88° | 64° | 76° | — | — |
| 1974 | 89° | 65° | 77° | — | — |
| 1973 | 88° | 71° | 79° | 0.28" | — |
| 1972 | 77° | 62° | 70° | — | — |
| 1971 | 91° | 68° | 80° | — | — |
55 years of data from CHATTANOOGA AP