Chattanooga, TN: September

30 September 2026: September 2026 averaged 80.7°F in Chattanooga, TN, the warmest September since 2019, 3rd warmest of 148.

September 2026

Mean temperature: 80.7°F; Warmest since 2019; 3rd warmest of 148
Precipitation: 0.68 in; Driest since 2023; 14th driest of 148

A normal September in Chattanooga, TN (1991 to 2020): a mean temperature of 73.7°F, between 70.9°F and 77.3°F in eight years of ten and 3.62 in of precipitation, between 1.11 in and 7.47 in in eight years of ten.

The mean temperature of every September in Chattanooga, TN since 1879: 80.7°F in 2026; the highest is 82.8°F, in 1925.

Normal range, 70.9 to 77.3°F

Every year, ranked, as a table

Every September in Chattanooga, TN from 1879 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	80.7	3	93.2	3	68.2	4	0.68	135	0
2025	75	35	85.9	30	64.1	42	1.70	105	0
2024	75.9	18	85.5	35	66.4	18	5.76	27	0
2023	75.3	28	86.1	28	64.5	34	0.13	146	0
2022	73.1	68	83.4	67	62.7	65	3.08	72	0
2021	72.8	71	82.5	85	63.1	60	6.67	17	0
2020	74.5	43	84	53	64.9	31	5.64	30	0
2019	81.1	2	94.4	1	67.8	7	0.56	139	0
2018	78.6	4	86.9	22	70.2	2	7.27	12	0
2017	72.4	77	83	73	61.7	84	3.64	59	0
2016	78.6	4	90.7	4	66.6	14	1.63	112	0
2015	73.9	55	83.8	59	63.9	49	2.38	87	0
2014	75.6	22	84.7	47	66.5	16	2.48	86	0
2013	74	49	83.8	59	64.2	40	2.11	93	0
2012	71.9	90	82.3	87	61.5	89	7.38	11	0
2011	70.9	112	80.7	114	61.2	97	10.85	5	0
2010	76.8	14	89.6	7	64	44	1.13	127	0
2009	73.3	64	80.5	117	66	20	12.38	2	0
2008	74.6	40	84.8	45	64.3	38	0.89	132	0
2007	76.3	16	88.1	12	64.5	34	1.93	99	0
2006	71	111	81.5	100	60.5	110	4.10	50	0
2005	75.5	25	87.2	20	63.7	53	1.92	100	0
2004	72.1	85	81.4	102	62.9	61	8.28	8	0
2003	71.2	107	81.7	96	60.8	106	6.01	23	0
2002	76.1	17	85.7	32	66.5	16	6.19	22	0
2001	71.1	109	80.8	112	61.3	93	4.51	43	0
2000	71.7	96	80.9	111	62.4	76	3.59	61	0
1999	73.4	61	87.7	16	59.1	132	0.62	136	0
1998	77.2	11	89.9	6	64.5	34	1.47	115	0
1997	72.5	76	83.5	65	61.4	92	5.56	32	0
1996	69.4	131	79.2	132	59.5	126	7.19	13	0
1995	70.3	118	79.6	126	60.9	105	5.52	33	0
1994	70.4	117	80.6	116	60.3	114	2.94	75	0
1993	74.4	44	87.3	18	61.5	89	1.68	106	0
1992	71.3	102	80.2	120	62.3	79	4.71	39	0
1991	74	49	85.5	35	62.5	72	2.37	88	0
1990	74.6	40	86.9	22	62.3	79	3.69	57	0
1989	71.7	96	79.6	126	63.7	53	11.22	4	0
1988	72.4	77	82.1	92	62.7	65	6.76	16	0
1987	71.4	101	83	73	59.8	118	4.07	51	0
1986	74	49	83.1	72	64.8	33	5.86	26	0
1985	69.4	131	81	109	57.7	139	0.93	131	0
1984	68	146	79.8	124	56.2	147	0.51	140	0
1983	71.2	107	81.9	94	60.4	112	1.15	126	0
1982	70	121	80.8	112	59.2	129	1.34	120	0
1981	69.7	123	81.3	103	58.1	137	2.74	81	0
1980	74	49	83.9	57	64	44	4.62	41	0
1979	72.4	77	79.7	125	65.1	29	7.75	10	0
1978	75.6	22	85.5	35	65.7	22	1.62	113	0
1977	75.3	28	83.7	62	66.8	11	14.18	1	0
1976	69.1	133	79.3	130	58.9	134	3.35	67	0
1975	68.4	141	76.9	147	59.8	118	10.31	6	0
1974	68.2	143	77.5	145	59	133	1.30	121	0
1973	75.8	20	86.2	27	65.4	25	5.38	36	0
1972	71.9	90	82.7	78	61	102	3.19	71	0
1971	75.5	25	84.9	43	66.1	19	3.68	58	0
1970	75.6	22	85.7	32	65.4	25	2.92	76	0
1969	68.2	143	78.9	135	57.6	140	4.70	40	0
1968	72.4	77	83.6	63	61.3	93	2.82	79	0
1967	67.4	148	78.4	136	56.5	145	2.08	94	0
1966	69.5	130	79.3	130	59.7	121	6.40	21	0
1965	71.9	90	81.7	96	62.1	82	4.47	44	0
1964	72.6	75	84.7	47	60.4	112	2.06	95	0
1963	72	88	84.4	51	59.7	121	1.27	122	0
1962	72.2	82	82.7	78	61.7	84	3.48	64	0
1961	74	49	85.4	39	62.5	72	0.61	137	0
1960	72.8	71	82.6	84	62.9	61	5.92	24	0
1959	73.1	68	82.7	78	63.4	57	3.33	68	0
1958	71.3	102	83	73	59.6	123	4.41	47	0
1957	72.7	73	82	93	63.3	58	12.19	3	0
1956	69.7	123	82.4	86	57	143	1.43	116	0
1955	75.3	28	87.9	13	62.6	70	0.89	132	0
1954	75.8	20	90.7	4	61	102	3.45	65	0
1953	72	88	85.8	31	58.2	136	2.85	78	0
1952	69.8	122	82.9	76	56.6	144	2.65	82	0
1951	73.4	61	85.1	41	61.7	84	5.57	31	0
1950	70.3	118	79.4	128	61.3	93	9.18	7	0
1949	68.7	137	80.3	119	57.1	142	2.33	90	0
1948	71.5	100	82.8	77	60.2	115	3.08	72	0
1947	74.6	40	86.6	26	62.5	72	1.37	119	0
1946	70.2	120	81.2	106	59.2	129	6.44	20	0
1945	75	35	86.8	24	63.3	58	1.26	123	0
1944	73.2	65	83.8	59	62.6	70	4.54	42	0
1943	68.6	138	80.7	114	56.4	146	4.91	38	0
1942	69.6	126	81.3	103	57.9	138	3.87	53	0
1941	74.4	44	89.3	8	59.6	123	0.34	144	0
1940	68.8	136	83.5	65	54.1	148	0.49	142	0
1939	77.3	10	88.8	10	65.7	22	1.80	102	0
1938	74.1	48	84.6	50	63.7	53	0.32	145	0
1937	72.1	85	82.3	87	62	83	2.30	91	0
1936	77.7	9	87.9	13	67.4	9	1.73	104	0
1935	75.3	28	86.8	24	63.8	50	0.47	143	0
1934	73.4	61	84	53	62.8	64	2.81	80	0
1933	77	12	87.4	17	66.6	14	1.20	125	0
1932	72.7	73	81.3	103	64.1	42	1.43	116	0
1931	78.1	7	89	9	67.3	10	0.51	140	0
1930	75.2	32	83.6	63	66.7	12	3.32	69	0
1929	72.1	85	79.9	122	64.2	40	5.66	29	0
1928	69.1	133	79	134	59.3	127	3.32	69	0
1927	75.2	32	86.1	28	64.3	38	1.68	106	0
1926	77	12	85.5	35	68.4	3	2.53	84	0
1925	82.8	1	94.2	2	71.3	1	1.80	102	0
1924	68.3	142	77	146	59.6	123	4.20	48	0
1923	73.2	65	82.7	78	63.8	50	2.90	77	0
1922	74.8	37	85.7	32	63.8	50	0.78	134	0
1921	78.2	6	88.2	11	68.2	4	4.04	52	0
1920	72.9	70	81.8	95	64	44	2.50	85	0
1919	73.7	57	84.7	47	62.7	65	0.04	148	0
1918	67.5	147	77.6	144	57.4	141	1.25	124	0
1917	69.7	123	78.3	139	61.1	98	4.16	49	0
1916	70.9	112	81.1	107	60.7	107	1.62	113	0
1915	73.5	60	83.2	68	63.7	53	6.91	15	0
1914	71.3	102	81	109	61.6	88	1.67	108	0
1913	71.1	109	80.4	118	61.7	84	3.74	55	0
1912	74.7	39	84.1	52	65.3	27	2.36	89	0
1911	77.9	8	87.9	13	67.8	7	2.97	74	0
1910	74.8	37	84	53	65.6	24	1.89	101	0
1909	71.3	102	80.1	121	62.4	76	4.44	45	0
1908	71.3	102	81.5	100	61.1	98	3.72	56	0
1907	72.2	82	81.6	98	62.7	65	5.90	25	0
1906	75.5	25	82.7	78	68.2	4	5.48	34	0
1905	74	49	84	53	64	44	1.67	108	0
1904	73.6	59	84.8	45	62.4	76	1.07	129	0
1903	71.6	99	82.7	78	60.5	110	0.60	138	0
1902	69.6	126	79.2	132	60.1	116	3.59	61	0
1901	69.6	126	78.4	136	60.7	107	3.77	54	0
1900	76.6	15	87.1	21	66	20	1.66	111	0
1899	70.8	114	81.6	98	60	117	1.42	118	0
1898	73.7	57	82.3	87	65	30	6.50	18	0
1897	74.4	44	87.3	18	61.5	89	0.07	147	0
1896	73.2	65	85.3	40	61.1	98	2.01	97	0
1895	75.1	34	84.9	43	65.3	27	1.00	130	0
1894	73.8	56	83.2	68	64.4	37	1.67	108	0
1893	71.8	95	82.3	87	61.3	93	2.19	92	0
1892	69.6	126	79.9	122	59.3	127	5.42	35	0
1891	72.2	82	83.2	68	61.1	98	2.06	95	0
1890	71.9	90	79.4	128	64	44	7.10	14	2
1889	69	135	78.1	141	59.8	118	7.87	9	0
1888	68.6	138	77.9	142	59.2	129	4.42	46	0
1887	71.9	90	83.2	68	60.7	107	3.60	60	0
1886	72.4	77	82.2	91	62.5	72	1.11	128	0
1885	70.5	115	78.2	140	62.9	61	6.48	19	0
1884	74.4	44	83.9	57	64.9	31	2.00	98	0
1883	71.7	96	81.1	107	62.2	81	3.40	66	0
1882	70.5	115	78.4	136	62.7	65	3.57	63	0
1881	75.9	18	85	42	66.7	12	5.74	28	0
1880	68.5	140	75.9	148	61	102	5.20	37	0
1879	68.2	143	77.8	143	58.5	135	2.54	83	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1925	82.8
2019	81.1
2026	80.7
2018	78.6
2016	78.6
1921	78.2
1931	78.1
1911	77.9
1936	77.7
1939	77.3

Coldest
Year	Mean, °F
1967	67.4
1918	67.5
1984	68
1974	68.2
1969	68.2
1879	68.2
1924	68.3
1975	68.4
1880	68.5
1943	68.6
More years share the last value

Wettest
Year	Precipitation, in
1977	14.18
2009	12.38
1957	12.19
1989	11.22
2011	10.85
1975	10.31
1950	9.18
2004	8.28
1889	7.87
1979	7.75

Driest
Year	Precipitation, in
1919	0.04
1897	0.07
2023	0.13
1938	0.32
1941	0.34
1935	0.47
1940	0.49
1984	0.51
1931	0.51
2019	0.56

The hottest, coldest and wettest days

Hottest day: 101°F; 5 September 2026, 4 September 2026
Coldest night: 51°F; 28 September 2026
Wettest day: 0.61 in; 23 September 2026

Every month, season and year

Months

Seasons

Years

Chattanooga, TN the day's answers

All-time records

Every answer in words

September 2026 brought 0.68 in of precipitation in Chattanooga, TN, the driest September since 2023, 14th driest of 148.
The hottest day of September 2026 in Chattanooga, TN: 101°F on Saturday 5 September 2026 and Friday 4 September 2026.
The coldest night of September 2026 in Chattanooga, TN: a low of 51°F on Monday 28 September 2026.
The wettest day of September 2026 in Chattanooga, TN: 0.61 in on Wednesday 23 September 2026.