Chattanooga, TN: records

4 October 2026: The hottest day on record in Chattanooga, TN: 107°F on Sunday 1 July 2012 and Saturday 30 June 2012.

The record begins: 1879

All-time records

Hottest day: 107°F; 1 July 2012, 30 June 2012
Coldest night: -10°F; 21 January 1985, 31 January 1966, 13 February 1899
Wettest day: 9.49 in; 5 September 2011
Warmest night: 86°F; 9 July 1888
Coldest day: 10°F; 11 January 1886

Daily records by decade

New daily records set in Chattanooga, TN by decade since the 1900s: the most record highs, 111, came in the 1930s; the most record lows, 94, in the 1940s.

Record highs
Record lows

Every decade as a table

Decade	Record highs	Record lows	Years in the record
1870s	0	0	1
1880s	0	0	10
1890s	0	0	10
1900s	17	11	10
1910s	68	76	10
1920s	90	50	10
1930s	111	34	10
1940s	66	94	10
1950s	73	73	10
1960s	36	83	10
1970s	24	50	10
1980s	34	39	10
1990s	25	16	10
2000s	32	6	10
2010s	53	2	10
2020s	22	1	7

Records by month

Month	Highest	Lowest	Wettest day
January	78°F 1 January 2022, 11 January 1949, 10 January 1949	-10°F 21 January 1985, 31 January 1966	3.79 in 6 January 2009
February	82°F 22 February 2023	-10°F 13 February 1899	3.48 in 28 February 2018
March	89°F 24 March 1929, 22 March 1907, 21 March 1907	2°F 7 March 1899	6.19 in 27 March 1994
April	93°F 30 April 1942	25°F 3 April 1992, 2 April 1881	5.99 in 4 April 1911
May	99°F 29 May 1941	34°F 4 May 1971, 1 May 1879	3.47 in 30 May 1903
June	107°F 30 June 2012	39°F 1 June 1889	4.85 in 15 June 1949
July	107°F 1 July 2012	51°F 7 July 1972, 15 July 1967	4.84 in 8 July 1916
August	105°F 23 August 2007, 4 August 1947	50°F 31 August 1946	6.42 in 12 August 2025
September	104°F 7 September 1925, 5 September 1925	36°F 30 September 1967	9.49 in 5 September 2011
October	100°F 3 October 2019, 2 October 2019	22°F 30 October 1952	4.04 in 16 October 1932
November	86°F 1 November 2016	4°F 25 November 1950	4.53 in 28 November 1948
December	78°F 27 December 2025, 7 December 1951	-2°F 25 December 1983, 13 December 1962	4.85 in 28 December 1942

Streaks, months and years

Longest heat streak	50 days	4 August to 22 September 2026	A high of 90°F or above
Longest cold streak	8 days	9 January to 16 January 1978	A high of 32°F or below
Wettest month	16.32 in	March 1980
Driest month	0.01 in	August 2011
Wettest year	73.70 in	1994
Driest year	32.68 in	1904

Every record in words

The coldest night on record in Chattanooga, TN: a low of -10°F on Monday 21 January 1985, Monday 31 January 1966 and Monday 13 February 1899.
The wettest day on record in Chattanooga, TN: 9.49 in on Monday 5 September 2011.
The warmest night on record in Chattanooga, TN: a low of 86°F on Monday 9 July 1888.
The coldest day on record in Chattanooga, TN: a high of 10°F on Monday 11 January 1886.
The longest run of days with a high of 90°F or above in Chattanooga, TN: 50 days, from Tuesday 4 August to Tuesday 22 September 2026; provisional.
The longest run of days with a high of 32°F or below in Chattanooga, TN: 8 days, from Monday 9 January to Monday 16 January 1978.
The wettest month on record in Chattanooga, TN: March 1980, with 16.32 in of precipitation.
The driest month on record in Chattanooga, TN: August 2011, with 0.01 in of precipitation.
The wettest year on record in Chattanooga, TN: 1994, with 73.70 in of precipitation.
The driest year on record in Chattanooga, TN: 1904, with 32.68 in of precipitation.

Chattanooga, TN the day's answers