Louisville, KY: September

30 September 2026: September 2026 averaged 77.9°F in Louisville, KY, the warmest September since 2019, 2nd warmest of 155.

September 2026

Mean temperature: 77.9°F; Warmest since 2019; 2nd warmest of 155
Precipitation: 1.16 in; Driest since 2023; 27th driest of 155

A normal September in Louisville, KY (1991 to 2020): a mean temperature of 71.1°F, between 66.8°F and 75.1°F in eight years of ten and 2.94 in of precipitation, between 0.48 in and 6.76 in in eight years of ten.

The mean temperature of every September in Louisville, KY since 1872: 77.9°F in 2026; the highest is 79.7°F, in 2019.

Normal range, 66.8 to 75.1°F

Every year, ranked, as a table

Every September in Louisville, KY from 1872 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
2026	77.9	2	87.7	5	68	2	1.16	129
2025	73	41	84	30	62	49	4.17	31
2024	75.1	11	84.6	21	65.5	10	6.71	6
2023	74	22	84.6	21	63.4	26	0.74	143
2022	72	52	81.7	58	62.2	46	2.04	107
2021	73.4	35	83.1	37	63.8	21	4.76	21
2020	71.3	62	80.8	78	61.8	55	3.18	57
2019	79.7	1	91.4	1	68	2	0.04	155
2018	74.9	13	82.7	48	67	5	10.91	1
2017	71.3	62	81.4	64	61.3	62	5.47	15
2016	75.5	8	85.7	14	65.3	12	2.28	100
2015	73.7	28	84.3	27	63.2	28	2.45	93
2014	71.2	65	81.6	61	60.7	68	3.31	54
2013	72.4	45	82.1	55	62.7	37	2.70	81
2012	69.7	90	79.4	97	60	84	5.83	11
2011	68.6	116	77.3	130	59.9	87	5.73	12
2010	75.1	11	87.8	3	62.4	42	0.12	154
2009	71	68	79.6	95	62.4	42	5.70	14
2008	73.8	25	84.5	23	63.2	28	1.31	127
2007	76.4	5	87.7	5	65	14	1.95	109
2006	66.6	141	74.8	151	58.3	114	9.79	3
2005	71.8	55	82.5	51	61	64	1.90	111
2004	69.8	87	80.8	78	58.9	102	0.18	153
2003	66.3	144	76.2	139	56.4	138	6.63	7
2002	72.7	43	83.4	34	62.1	48	7.88	5
2001	66.8	137	77.5	126	56.1	142	2.97	69
2000	67	135	77.1	133	57	129	5.34	16
1999	70.5	75	85.4	18	55.6	145	0.53	147
1998	74.2	20	86.5	11	61.8	55	0.51	148
1997	67.9	122	79	106	56.7	135	2.25	102
1996	66.6	141	76.7	137	56.5	137	6.55	8
1995	68.7	113	79.1	104	58.3	114	1.32	126
1994	68.6	116	79.3	101	58	118	2.91	72
1993	68	121	77.3	130	58.6	106	3.90	38
1992	69.1	103	79.2	103	58.9	102	3.50	49
1991	71.7	58	81.7	58	61.7	57	2.74	79
1990	71.7	58	81.5	63	62	49	2.57	89
1989	69.3	98	78.6	111	60.1	82	2.42	96
1988	70.1	83	80.4	84	59.8	88	1.48	118
1987	71.2	65	82.8	44	59.6	90	1.15	130
1986	73.1	38	82.4	52	63.8	21	2.75	77
1985	69.2	101	80.4	84	58	118	1.48	118
1984	67.2	134	77.5	126	56.9	132	3.70	39
1983	71	68	82.6	49	59.4	96	1.13	131
1982	66.8	137	76	142	57.6	123	3.46	53
1981	67.7	126	78.1	120	57.3	128	3.22	56
1980	73.5	32	83.9	31	63.1	31	3.17	58
1979	69.4	93	79.1	104	59.6	90	10.49	2
1978	73.6	30	84.3	27	63	34	0.96	137
1977	72.5	44	81.3	66	63.6	23	3.67	41
1976	66.8	137	77.4	128	56.1	142	3.10	60
1975	66.2	145	75.5	147	56.9	132	2.64	85
1974	63.2	154	71.7	155	54.6	151	3.52	48
1973	73.6	30	83.1	37	64.1	17	2.34	98
1972	72.3	46	81.2	68	63.3	27	4.24	30
1971	72.2	47	80.9	76	63.5	25	4.72	22
1970	73.4	35	82.9	41	63.9	18	3.57	43
1969	67.5	128	78	122	57	129	1.08	133
1968	68.9	107	79.9	89	58	118	2.61	87
1967	65.7	149	77.1	133	54.3	152	1.73	116
1966	67.4	130	75.9	143	58.9	102	2.59	88
1965	70.5	75	80.6	81	60.4	78	8.41	4
1964	69.1	103	81.2	68	57	129	4.16	32
1963	66.8	137	78.9	108	54.7	149	3.48	52
1962	65	151	75.3	149	54.7	149	3.56	45
1961	73	41	84.5	23	61.5	60	1.48	118
1960	70.5	75	81.2	68	59.7	89	3.00	67
1959	73.7	28	85.6	15	61.7	57	0.48	149
1958	70.2	82	81.2	68	59.2	99	4.07	35
1957	69.9	86	79.4	97	60.3	79	2.80	75
1956	66.2	145	78.1	120	54.3	152	3.70	39
1955	73.4	35	86.8	10	60	84	4.47	25
1954	74.1	21	87.6	7	60.7	68	5.16	18
1953	70.4	80	85.8	13	55	147	0.27	152
1952	68.8	109	82.6	49	55	147	1.75	114
1951	67.4	130	79.4	97	55.4	146	3.15	59
1950	67.6	127	77.1	133	58	118	3.06	62
1949	64.6	153	76.8	136	52.4	155	0.91	138
1948	70.4	80	81.9	57	58.8	105	1.47	121
1947	69.8	87	81.7	58	57.9	122	2.86	73
1946	69	105	81.6	61	56.4	138	1.34	125
1945	72.2	47	82.8	44	61.6	59	3.49	51
1944	69.4	93	78.3	118	60.5	74	4.94	19
1943	67.4	130	76.2	139	58.6	106	1.92	110
1942	68.6	116	77.9	124	59.2	99	3.55	47
1941	74.3	19	85.6	15	62.9	35	0.64	144
1940	68.3	119	79.7	93	56.8	134	0.97	136
1939	75.7	6	87.4	8	63.9	18	1.20	128
1938	71.2	65	79.8	90	62.6	41	2.99	68
1937	67.9	122	78.4	115	57.4	127	1.09	132
1936	73.9	24	82.9	41	64.9	15	3.50	49
1935	69.3	98	79.3	101	59.3	98	1.75	114
1934	69.4	93	78.8	110	60	84	3.07	61
1933	75.6	7	84.7	20	66.5	6	4.66	23
1932	69.6	91	78.5	113	60.7	68	3.01	66
1931	75.2	10	84.5	23	65.9	9	3.56	45
1930	71.9	54	81.1	72	62.7	37	2.35	97
1929	69.3	98	77.7	125	60.8	67	3.26	55
1928	65.8	148	75.7	144	55.9	144	0.78	141
1927	73.5	32	83.4	34	63.6	23	3.02	64
1926	71.8	55	80.5	82	63.2	28	5.34	16
1925	77.5	3	87	9	68	2	2.14	106
1924	65.3	150	74.3	152	56.3	141	4.83	20
1923	70.8	72	79.5	96	62	49	3.61	42
1922	73.5	32	84.4	26	62.7	37	1.39	123
1921	74.7	16	83	39	66.3	7	4.29	29
1920	71.3	62	80.4	84	62.2	46	1.79	113
1919	73.1	38	83.8	32	62.3	45	2.53	90
1918	62.7	155	72.6	154	52.8	154	2.19	103
1917	68.8	109	79	106	58.5	110	2.27	101
1916	68.3	119	78.4	115	58.2	116	4.12	33
1915	71.7	58	81	74	62.4	42	2.34	98
1914	69	105	78.5	113	59.5	92	1.35	124
1913	70.1	83	79.4	97	60.7	68	1.85	112
1912	72.1	49	82.3	53	61.9	53	3.03	63
1911	74.9	13	84.3	27	65.5	10	4.66	23
1910	72.1	49	81.4	64	62.7	37	2.18	104
1909	69.2	101	79.8	90	58.6	106	2.18	104
1908	74.9	13	87.8	3	62	49	0.59	146
1907	70.9	71	80.9	76	60.9	65	1.46	122
1906	73.8	25	82.8	44	64.8	16	4.12	33
1905	71	68	81	74	60.9	65	2.95	71
1904	72.1	49	82.3	53	61.9	53	2.65	84
1903	70.7	73	82.9	41	58.5	110	0.83	140
1902	67.9	122	78.4	115	57.5	125	4.03	36
1901	70	85	80.5	82	59.4	96	2.78	76
1900	75.4	9	85.5	17	65.2	13	1.05	134
1899	69.8	87	81.1	72	58.5	110	0.89	139
1898	73.8	25	83.7	33	63.9	18	2.97	69
1897	74.5	17	88.5	2	60.5	74	0.75	142
1896	68.7	113	79.8	90	57.5	125	4.36	28
1895	74	22	85.2	19	62.8	36	0.41	150
1894	73.1	38	83	39	63.1	31	2.64	85
1893	71.7	58	82	56	61.5	60	4.00	37
1892	69.4	93	80.3	87	58.6	106	2.43	95
1891	71.8	55	83.4	34	60.2	81	1.99	108
1890	67.8	125	76.1	141	59.5	92	2.71	80
1889	67	135	76.5	138	57.6	123	4.38	26
1888	66.1	147	75.7	144	56.6	136	2.75	77
1887	70.5	75	80.3	87	60.6	73	2.84	74
1886	70.7	73	81.3	66	60.1	82	1.63	117
1885	68.8	109	77.4	128	60.3	79	5.71	13
1884	74.5	17	82.8	44	66.2	8	5.90	9
1883	68.7	113	78.9	108	58.5	110	0.32	151
1882	68.9	107	77.2	132	60.5	74	3.57	43
1881	77.1	4	86	12	68.1	1	2.70	81
1880	67.4	130	75.7	144	59.1	101	2.44	94
1879	65	151	73.5	153	56.4	138	5.88	10
1878	69.5	92	78.6	111	60.5	74	2.52	91
1877	69.4	93	78	122	60.7	68	3.02	64
1876	67.5	128	75.5	147	59.5	92	2.66	83
1875	66.6	141	75.1	150	58.1	117	1.05	134
1874	72	52	80.8	78	63.1	31	0.62	145
1873	68.8	109	78.2	119	59.5	92	2.47	92
1872	70.5	75	79.7	93	61.3	62	4.38	26

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2019	79.7
2026	77.9
1925	77.5
1881	77.1
2007	76.4
1939	75.7
1933	75.6
2016	75.5
1900	75.4
1931	75.2

Coldest
Year	Mean, °F
1918	62.7
1974	63.2
1949	64.6
1962	65
1879	65
1924	65.3
1967	65.7
1928	65.8
1888	66.1
1975	66.2
More years share the last value

Wettest
Year	Precipitation, in
2018	10.91
1979	10.49
2006	9.79
1965	8.41
2002	7.88
2024	6.71
2003	6.63
1996	6.55
1884	5.90
1879	5.88

Driest
Year	Precipitation, in
2019	0.04
2010	0.12
2004	0.18
1953	0.27
1883	0.32
1895	0.41
1959	0.48
1998	0.51
1999	0.53
1908	0.59

The hottest, coldest and wettest days

Hottest day: 100°F; 4 September 2026
Coldest night: 50°F; 27 September 2026
Wettest day: 0.38 in; 11 September 2026

Every month, season and year

Months

Seasons

Years

Louisville, KY the day's answers

All-time records

Every answer in words

September 2026 brought 1.16 in of precipitation in Louisville, KY, the driest September since 2023, 27th driest of 155.
The hottest day of September 2026 in Louisville, KY: 100°F on Friday 4 September 2026.
The coldest night of September 2026 in Louisville, KY: a low of 50°F on Sunday 27 September 2026.
The wettest day of September 2026 in Louisville, KY: 0.38 in on Friday 11 September 2026.