Baton Rouge, LA: September

30 September 2026: September 2026 averaged 82.8°F in Baton Rouge, LA, the warmest September since 2023, 4th warmest of 133.

September 2026

Mean temperature: 82.8°F; Warmest since 2023; 4th warmest of 133
Precipitation: 1.91 in; Driest since 2022; 23rd driest of 133

A normal September in Baton Rouge, LA (1991 to 2020): a mean temperature of 78.6°F, between 76.2°F and 81.3°F in eight years of ten and 3.86 in of precipitation, between 1.48 in and 8.56 in in eight years of ten.

The mean temperature of every September in Baton Rouge, LA since 1893: 82.8°F in 2026; the highest is 83.8°F, in 1921.

Normal range, 76.2 to 81.3°F

Every year, ranked, as a table

Every September in Baton Rouge, LA from 1893 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	82.8	4	93.8	4	71.9	11	1.91	109	0
2025	80.2	26	91.4	20	69	52	3.82	63	0
2024	81.5	13	90.5	28	72.5	3	7.37	18	0
2023	83.1	2	94.9	2	71.2	20	2.98	89	0
2022	78.6	61	89.3	47	67.9	68	0.86	128	0
2021	76.7	105	85.6	120	67.8	72	8.35	15	0
2020	78.7	59	87.4	88	70	33	1.81	114	0
2019	83	3	93.8	4	72.1	8	2.54	98	0
2018	81.3	14	89.6	42	73	1	3.38	73	0
2017	78.2	68	89	55	67.4	79	0.08	132	0
2016	81.7	10	91.2	22	72.1	8	2.48	100	0
2015	79.5	41	89.8	39	69.1	50	2.21	104	0
2014	79.6	36	89.3	47	69.8	34	3.06	84	0
2013	80.7	21	90.7	26	70.6	29	6.90	21	0
2012	78.2	68	88.1	72	68.4	63	5.41	36	0
2011	75.9	119	86.6	104	65.2	120	9.90	6	0
2010	79.7	33	90.4	30	68.9	53	1.90	112	0
2009	79.2	48	87.4	88	71	21	5.55	32	0
2008	77.7	78	86.1	115	69.4	42	8.77	13	0
2007	80.4	25	90.1	33	70.8	23	3.63	65	0
2006	77.9	73	88.8	58	67	89	4.51	50	0
2005	82	6	92.4	9	71.6	13	11.69	4	0
2004	79.3	45	90	34	68.7	56	1.47	119	0
2003	76.8	102	87	98	66.6	94	4.47	53	0
2002	79.6	36	87.6	83	71.6	13	6.20	28	0
2001	75.9	119	85.4	124	66.3	104	7.11	19	0
2000	77.6	80	88.6	61	66.6	94	3.04	86	0
1999	76	117	87.9	74	64.2	128	4.08	60	0
1998	80.8	18	89.1	53	72.5	3	8.54	14	0
1997	78.5	62	89.7	41	67.3	81	1.18	123	0
1996	76.2	114	86	116	66.4	101	6.57	23	0
1995	78.9	56	90.9	25	66.9	91	2.70	93	0
1994	76.5	107	86.5	108	66.5	99	4.13	57	0
1993	78	71	88.6	61	67.3	81	1.48	117	0
1992	78.5	62	87.9	74	69.1	50	1.50	116	0
1991	77.6	80	87.8	78	67.3	81	6.31	26	0
1990	79.5	41	90.5	28	68.6	58	5.06	41	0
1989	77.2	90	86.5	108	67.9	68	4.51	50	0
1988	79	54	87.4	88	70.6	29	9.48	9	0
1987	77.5	83	87.8	78	67.2	88	0.78	129	0
1986	82	6	91.7	16	72.3	5	1.91	109	0
1985	76.5	107	85.5	122	67.4	79	6.31	26	0
1984	75.9	119	85.6	120	66.1	110	2.37	103	0
1983	75.2	127	85.1	125	65.3	118	4.47	53	0
1982	77	93	87.1	96	66.9	91	2.47	101	0
1981	76.3	112	87.2	94	65.4	116	3.95	61	0
1980	80.1	27	88.9	57	71.4	19	7.74	17	0
1979	76	117	84.5	130	67.5	77	3.55	67	0
1978	78.8	58	87.8	78	69.8	34	3.83	62	0
1977	79.6	36	87.3	91	72	10	13.95	1	0
1976	76.9	99	87.2	94	66.6	94	1.46	120	0
1975	74.7	132	84.7	129	64.6	125	3.54	68	0
1974	75.7	124	85	127	66.5	99	2.19	105	0
1973	79.9	30	87.5	87	72.2	7	13.08	2	0
1972	81.7	10	91.7	16	71.7	12	4.12	58	0
1971	78.7	59	86.7	101	70.7	25	10.94	5	0
1970	79.2	48	87.8	78	70.7	25	4.34	55	0
1969	77.3	86	88.3	68	66.2	108	2.99	88	0
1968	76.7	105	87.3	91	66	112	1.68	115	0
1967	74.5	133	84.5	130	64.5	127	3.48	70	0
1966	76.9	99	86.4	110	67.3	81	2.62	95	0
1965	78	71	86.4	110	69.7	40	5.20	40	0
1964	77.4	84	86.7	101	68.1	66	3.52	69	0
1963	79	54	88.8	58	69.2	48	1.90	112	0
1962	79.4	43	89.4	46	69.3	45	4.29	56	0
1961	76.9	99	85.9	117	67.9	68	9.67	7	0
1960	77.3	86	86.8	100	67.9	68	1.17	124	0
1959	77.8	76	87.1	96	68.5	60	3.21	81	0
1958	79.6	36	88.3	68	70.8	23	3.32	75	0
1957	75.9	119	84.2	132	67.7	75	6.48	25	0
1956	77	93	88.8	58	65.3	118	1.97	108	0
1955	80.5	23	89.9	35	71	21	3.57	66	0
1954	79.7	33	91.3	21	68.1	66	3.21	81	0
1953	77.9	73	89.9	35	65.8	113	0.09	131	0
1952	76.4	111	87.6	83	65.2	120	0.94	127	0
1951	78.5	62	88.2	70	68.8	54	4.58	49	0
1950	77.6	80	87.7	82	67.5	77	0.57	130	0
1949	76.1	115	84.9	128	67.3	81	2.66	94	0
1948	74.9	130	83.7	134	66.1	110	5.43	34	0
1947	79.8	31	91.2	22	68.5	60	4.85	43	0
1946	77.9	73	87.6	83	68.3	64	1.38	121	0
1945	79.2	48	89.9	35	68.6	58	5.43	34	1
1944	79.2	48	89.3	47	69.3	45	3.48	70	1
1943	75	129	84.1	133	66.2	108	12.53	3	1
1942	76.1	115	86.3	113	65.8	113	5.88	30	0
1941	79.8	31	88	73	71.6	13	3.29	77	0
1940	74.9	130	85.9	117	63.9	130	2.56	97	0
1939	79.2	48	89.2	51	69.3	45	2.38	102	0
1938	77.1	92	89.3	47	64.6	125	1.25	122	1
1937	77.2	90	87.9	74	66.4	101	4.12	58	0
1936	80	29	90.3	31	69.7	40	5.63	31	0
1935	77	93	87.6	83	66.3	104	3.02	87	0
1934	75.7	124	86.6	104	64.9	124	2.08	106	1
1933	81.3	14	92.8	7	69.8	34	3.05	85	0
1932	77.7	78	86.2	114	69.2	48	5.44	33	1
1931	80.8	18	91	24	70.7	25	2.00	107	1
1930	78.5	62	86.7	101	70.2	31	9.27	11	1
1929	77.3	86	86.4	110	68.3	64	9.65	8	0
1928	76.3	112	85.1	125	67.3	81	5.40	37	1
1927	78.9	56	88.5	64	69.4	42	4.63	48	0
1926	80.7	21	89.8	39	71.6	13	7.75	16	0
1925	82.5	5	92	14	73	1	3.39	72	0
1924	79.7	33	92.3	11	67	89	0.00	133	0
1923	78.1	70	89.6	42	66.6	94	3.13	83	2
1922	79.2	48	88.5	64	69.8	34	4.70	46	0
1921	83.8	1	95.2	1	72.3	5	4.64	47	0
1920	81.9	9	92.4	9	71.5	17	3.37	74	0
1919	79.6	36	90.6	27	68.8	54	2.49	99	1
1918			88.2	70			1.48	117	14
1917	75.8	123	85.9	117	65.2	120	4.80	44	1
1916	77.3	86	89.6	42	65	123	5.39	38	0
1915	79.3	45	91.7	16	66.8	93	3.25	79	0
1914	78.3	67	90.3	31	66.3	104	2.93	90	0
1913	77	93	86.6	104	67.3	81	8.84	12	0
1912	80.9	17	91.5	19	69.8	34	6.63	22	1
1911	80.1	27	92.5	8	67.8	72	2.60	96	0
1910	79.4	43	89	55	69.8	34	3.29	77	0
1909	77.4	84	88.4	66	66.4	101	6.16	29	0
1908	76.5	107	89.1	53	64	129	4.95	42	1
1907	76.8	102	89.6	42	63.9	130	3.24	80	0
1906	81.2	16	94.6	3	67.8	72	3.32	75	0
1905	80.5	23	92.3	11	68.7	56	4.75	45	0
1904	82	6	93.2	6	70.7	25	5.37	39	0
1903	75.1	128	87.3	91	62.9	132	2.73	92	0
1902	76.8	102	87	98	66.6	94	6.51	24	0
1901	76.5	107	86.6	104	66.3	104	2.87	91	1
1900	81.7	10	91.8	15	71.5	17	3.82	63	0
1899	75.4	126	87.9	74	62.8	133	1.13	125	0
1898	79.3	45	88.4	66	70.1	32	9.32	10	1
1897	77	93	88.6	61	65.4	116	1.91	109	0
1896	77.8	76	89.9	35	65.8	113			0
1895	80.8	18	92.2	13	69.4	42	1.00	126	0
1894	78.5	62	89.2	51	67.7	75	4.50	52	0
1893	77	93	85.5	122	68.5	60	7.03	20	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1921	83.8
2023	83.1
2019	83
2026	82.8
1925	82.5
2005	82
1986	82
1904	82
1920	81.9
2016	81.7
More years share the last value

Coldest
Year	Mean, °F
1967	74.5
1975	74.7
1948	74.9
1940	74.9
1943	75
1903	75.1
1983	75.2
1899	75.4
1974	75.7
1934	75.7

Wettest
Year	Precipitation, in
1977	13.95
1973	13.08
1943	12.53
2005	11.69
1971	10.94
2011	9.90
1961	9.67
1929	9.65
1988	9.48
1898	9.32

Driest
Year	Precipitation, in
1924	0.00
2017	0.08
1953	0.09
1950	0.57
1987	0.78
2022	0.86
1952	0.94
1895	1.00
1899	1.13
1960	1.17

The hottest, coldest and wettest days

Hottest day: 98°F; 23 September 2026
Coldest night: 64°F; 26 September 2026
Wettest day: 0.45 in; 5 September 2026, 1 September 2026

Every month, season and year

Months

Seasons

Years

Baton Rouge, LA the day's answers

All-time records

Every answer in words

September 2026 brought 1.91 in of precipitation in Baton Rouge, LA, the driest September since 2022, tied 23rd driest of 133 (with 1986 and 1897).
The hottest day of September 2026 in Baton Rouge, LA: 98°F on Wednesday 23 September 2026.
The coldest night of September 2026 in Baton Rouge, LA: a low of 64°F on Saturday 26 September 2026.
The wettest day of September 2026 in Baton Rouge, LA: 0.45 in on Saturday 5 September 2026 and Tuesday 1 September 2026.