Weather on June 18
Chattanooga, TN
55 Years of Data
Avg High
88°F
Avg Low
67°F
Warmest
2009
84°F avg
Coldest
1974
62°F avg
About This Date
June 18th 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 18th was in 2009 (84°F average), while the coldest was 1974 (62°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 38% of June 18th dates historically, with the wettest June 18th recording 3.81" of rain. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for June 18th in Chattanooga, TN? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 89° | 70° | 79° | — | — |
| 2024 | 91° | 75° | 83° | — | — |
| 2023 | 88° | 61° | 74° | — | — |
| 2022 | 91° | 71° | 81° | — | — |
| 2021 | 93° | 65° | 79° | — | — |
| 2020 | 85° | 63° | 74° | — | — |
| 2019 | 84° | 72° | 78° | 1.8" | — |
| 2018 | 93° | 69° | 81° | — | — |
| 2017 | 88° | 71° | 79° | 0.28" | — |
| 2016 | 88° | 72° | 80° | — | — |
| 2015 | 94° | 74° | 84° | — | — |
| 2014 | 92° | 72° | 82° | — | — |
| 2013 | 84° | 69° | 77° | 1.85" | — |
| 2012 | 88° | 63° | 75° | — | — |
| 2011 | 89° | 68° | 79° | 1.02" | — |
| 2010 | 93° | 70° | 81° | — | — |
| 2009warmest | 95° | 74° | 84° | 0.71" | — |
| 2008 | 84° | 59° | 72° | — | — |
| 2007 | 94° | 69° | 81° | 0.03" | — |
| 2006 | 88° | 64° | 76° | — | — |
| 2005 | 84° | 59° | 72° | — | — |
| 2004 | 89° | 73° | 81° | 0.03" | — |
| 2003 | 77° | 69° | 73° | 2.18" | — |
| 2002 | 90° | 60° | 75° | — | — |
| 2001 | 91° | 66° | 79° | — | — |
| 2000 | 87° | 68° | 78° | 0.15" | — |
| 1999 | 83° | 62° | 72° | — | — |
| 1998 | 93° | 67° | 80° | — | — |
| 1997 | 81° | 68° | 74° | 0.15" | — |
| 1996 | 89° | 69° | 79° | — | — |
| 1995 | 85° | 57° | 71° | — | — |
| 1994 | 90° | 68° | 79° | 0.13" | — |
| 1993 | 94° | 69° | 81° | — | — |
| 1992 | 79° | 65° | 72° | 3.81" | — |
| 1991 | 88° | 70° | 79° | — | — |
| 1990 | 93° | 70° | 81° | — | — |
| 1989 | 86° | 61° | 73° | 0.91" | — |
| 1988 | 89° | 66° | 78° | 0.97" | — |
| 1987 | 88° | 69° | 78° | 0.15" | — |
| 1986 | 86° | 64° | 75° | — | — |
| 1985 | 72° | 66° | 69° | 1.52" | — |
| 1984 | 95° | 66° | 81° | — | — |
| 1983 | 76° | 67° | 71° | 0.03" | — |
| 1982 | 87° | 63° | 75° | — | — |
| 1981 | 89° | 61° | 75° | — | — |
| 1980 | 81° | 65° | 73° | — | — |
| 1979 | 91° | 63° | 77° | — | — |
| 1978 | 87° | 63° | 75° | — | — |
| 1977 | 90° | 73° | 81° | 0.48" | — |
| 1976 | 86° | 69° | 78° | 2.13" | — |
| 1975 | 89° | 64° | 77° | 2.21" | — |
| 1974coldest | 76° | 48° | 62° | — | — |
| 1973 | 90° | 70° | 80° | — | — |
| 1972 | 87° | 66° | 77° | 0.03" | — |
| 1971 | 85° | 70° | 77° | — | — |
55 years of data from CHATTANOOGA AP