Jefferson City, MO: September

30 September 2026: September 2026 averaged 77.7°F in Jefferson City, MO, the warmest September on record, in 122 years since 1895 (1903 excluded: 4 of 30 days missing; 1918 excluded: 15 of 30 days missing; 1963 excluded: 30 of 30 days missing; 7 more years excluded for missing days); provisional.

September 2026

Mean temperature: 77.7°F; Warmest on record; Warmest of 122, provisional
Precipitation: 1.10 in; Driest since 2023; 15th driest of 127

A normal September in Jefferson City, MO (1991 to 2020): a mean temperature of 68.7°F, between 65.4°F and 72.4°F in eight years of ten and 3.27 in of precipitation, between 1.23 in and 7.34 in in eight years of ten.

The mean temperature of every September in Jefferson City, MO since 1895: 77.7°F in 2026, the highest of them all.

Normal range, 65.4 to 72.4°F

Every year, ranked, as a table

Every September in Jefferson City, MO from 1895 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	77.7	1	88.4	7	67	2	1.10	113	0
2025	71.6	33	84.4	25	58.9	31	2.56	80	0
2024	71.2	37	82.9	50	59.5	25	2.93	70	0
2023	72.2	26	85.5	18	58.9	31	0.55	124	0
2022	70.2	47	82.7	54	57.8	48	1.19	109	0
2021	73.4	9	85.9	15	60.9	13	2.76	74	0
2020	69	62	79.6	94	58.3	41	4.13	45	0
2019	76.8	2	86.2	14	67.4	1	2.73	75	0
2018	73.2	13	84.4	25	61.9	9	1.51	102	0
2017	70.4	46	82.9	50	58.4	39	2.23	83	1
2016	72.4	22	83.1	46	61.6	11	6.94	15	0
2015	72.4	22	83.8	36	60.9	13	0.56	123	0
2014	68	83	79.9	93	56	69	1.84	96	0
2013	70.6	45	82.5	58	58.8	33	2.64	78	0
2012	68.1	81	79.6	94	56.6	63	1.25	108	0
2011	65.6	111	76.6	121	54.6	94	3.27	63	0
2010	69.2	60	79.6	94	58.8	33	6.75	18	0
2009	67.6	92	77.8	107	57.5	52	6.12	22	0
2008	68.7	70	78.3	106	59	30	8.95	9	0
2007	71.7	31	83.3	43	60	22	1.41	105	0
2006	65.7	109	77.8	107	53.7	103	1.04	115	0
2005	72.1	27	83.1	46	61.1	12	6.12	22	0
2004	68.7	70	81.1	74	56.3	66	1.62	99	0
2003	64.6	117	76.2	123	52.9	107	9.65	6	0
2002	70.2	47	82.3	61	58.2	43	2.05	88	0
2001	66.4	98	78.5	105	54.2	97	3.71	57	0
2000	68.7	70	82.1	64	55.2	81	3.36	60	0
1999	65.4	113	79.4	99	51.4	119	1.15	110	0
1998							4.07	50	5
1997	68.8	67	79.5	97	58.1	45			1
1996	65.2	114	75	125	55.5	75	4.94	36	0
1995	66	104	77	117	55	87	1.32	107	0
1994	66.5	95	77.4	112	55.5	75	1.93	92	0
1993	63.2	121	72.3	127	54.1	98	12.83	1	0
1992	66.3	100	77.4	112	55.2	81	4.34	41	0
1991	67.8	86	77.3	115	57.6	51	4.53	39	1
1990	72.7	16	84.9	21	60.4	18	1.93	92	0
1989	64.8	116	77.8	107	51.7	116	1.37	106	0
1988	67.8	86	82.6	56	53.3	105	2.20	85	2
1987	64.1	118	81	76	47.5	124	2.05	88	2
1986	68.8	67	82.4	59	55.5	75	9.18	8	1
1985	68.9	65	81.4	72	56.3	66	1.13	112	0
1984			79.3	101			5.41	29	16
1983			83.4	40			2.07	87	8
1982			77.3	115			5.00	33	4
1981	66.9	93	80.8	80	53	106	0.63	121	0
1980	71	41	84.9	21	57.1	57	1.51	102	0
1979	67.7	91	82.6	56	52.8	108	0.62	122	0
1978	73.4	9	86.5	12	60.2	20	1.86	94	0
1977	68.7	70	81.6	70	55.8	72	5.81	27	0
1976	68.9	65	83.2	44	54.7	92	0.45	125	1
1974							3.13	69	4
1973			81	76			5.50	28	10
1972	71.1	38	83.4	40	58.7	36	5.89	24	1
1971	70.8	43	84.2	29	57.5	52	4.11	47	2
1970	71.9	29	85	20	58.7	36	11.49	3	0
1969	68.2	79	81.2	73	55.2	81	7.95	11	0
1968	66.5	95	81.5	71	51.5	118	5.37	31	0
1967	65.7	109	79.4	99	52	114	3.43	58	0
1966	65.9	106	80.1	92	51.6	117	1.48	104	0
1965	68.5	75	80.8	80	56.2	68	6.42	20	1
1964	69.4	55	84	32	54.7	92	4.08	49	0
1962	65.8	108	77.6	111	53.9	101	6.35	21	0
1961	67.8	86	81	76	54.5	95	4.22	44	0
1960	72.6	19	89.3	3	55.9	70	0.65	119	0
1959	70.2	47	83.6	38	56.8	60	4.95	35	0
1958	68.7	70	80.8	80	56.5	64	3.89	54	0
1957	66.7	94	80.8	80	52.7	109	2.30	82	1
1956	72.8	15	88.7	5	56.9	58	0.93	117	0
1955	73	14	87.1	11	58.8	33	3.18	66	2
1954	73.5	8	89.2	4	57.8	48	3.30	62	0
1953	72.3	25	88	10	56.7	62	2.89	72	1
1952	66.5	95	82.8	52	50.1	120	1.06	114	0
1951	65.9	106	76.9	119	54.8	90	7.50	12	0
1950	66.4	98	77.4	112	55.3	79	0.65	119	1
1949	61.5	122	74.5	126	48.4	123	7.38	14	0
1948	69.6	54	82.3	61	56.8	60	2.04	90	0
1947	71.6	33	85.5	18	57.9	46	3.89	54	1
1946	67.8	86	80.5	88	55.1	86	1.60	100	0
1945	69.4	55	81.9	67	57.4	55	7.48	13	1
1944	68.8	67	80.7	87	57.2	56	3.98	51	2
1943	65.6	111	78.8	102	52.5	112	5.39	30	0
1942	66.1	102	78.7	103	53.6	104	4.73	38	1
1941	70.2	47	81.9	67	58.6	38	6.87	16	1
1940	68.4	77	84.1	31	52.6	110	0.05	127	1
1939	75.4	5	91.4	1	59.5	25	0.66	118	0
1938	70.8	43	84.4	25	57.5	52	2.59	79	1
1937	69.4	55	83.4	40	55.2	81	2.23	83	1
1936	72.6	19	82.7	54	62.2	6	10.02	4	3
1935	69	62	80.8	80	56.9	58	2.82	73	2
1934	66.3	100	76.9	119	55.5	75	9.55	7	3
1933	75.5	4	88.3	8	62.6	5	3.20	65	0
1932	69	62	83.5	39	54.5	95	1.79	97	0
1931	75.1	7	88.7	5	60.8	16	8.27	10	2
1930	71.3	36	83.1	46	59.2	29	4.76	37	1
1929	69.3	58	83.1	46	55.7	73	2.92	71	1
1928	65	115	77.8	107	51.9	115	1.56	101	1
1927	72.7	16	84.9	21	60.1	21	4.38	40	1
1926	70.2	47	79.5	97	60.3	19	9.71	5	3
1925	75.4	5	86.4	13	64.2	3	4.24	43	1
1924	64.1	118	75.6	124	52.6	110	3.90	52	1
1923	69.3	58	80.2	91	58.4	39	3.22	64	0
1922	71.8	30	85.6	17	58.3	41	3.37	59	1
1921	73.3	11	83.7	37	62.9	4	6.60	19	1
1920	71	41	82.4	59	59.9	23	3.32	61	2
1919	71.1	38	84	32	58.2	43	4.10	48	0
1918					49.6	122	5.85	25	15
1917	68	83	81.1	74	55.2	81	1.98	91	1
1916	68.3	78	81.7	69	54.9	88	1.14	111	1
1915	71.6	33	82	65	60.6	17	3.18	66	1
1914	70.1	52	81	76	59.4	27	5.16	32	1
1913	67.8	86	80.8	80	54.8	90			1
1912	66	104	78.7	103	53.8	102	2.18	86	1
1911	72.7	16	84.5	24	60.9	13	5.00	33	0
1910	68	83	80.8	80	55.3	79	5.82	26	1
1909	68.1	81	82.2	63	54	100	2.35	81	0
1908	71.1	38	85.9	15	55.9	70	2.66	76	1
1907	68.5	75	82.8	52	54.1	98	1.86	94	1
1906	72	28	84.2	29	59.7	24	4.12	46	0
1905	69.2	60	80.5	88	57.9	46	11.73	2	0
1904	69.7	53	82	65	57.7	50	3.90	52	1
1903			80.3	90	54.9	88	2.65	77	4
1902	63.4	120	77	117	49.8	121	3.80	56	0
1901	72.4	22	88.1	9	56.4	65	1.02	116	1
1900	71.7	31	83.9	34	59.3	28	4.29	42	3
1899	68.2	79	83.9	34	52.5	112	3.16	68	0
1898	72.6	19	83.2	44	62	8	6.79	17	0
1897	76.1	3	89.6	2	61.9	9	0.20	126	2
1896	66.1	102	76.4	122	55.7	73	1.65	98	0
1895	73.3	11	84.4	25	62.2	6			0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2026	77.7
2019	76.8
1897	76.1
1933	75.5
1939	75.4
1925	75.4
1931	75.1
1954	73.5
2021	73.4
1978	73.4

Coldest
Year	Mean, °F
1949	61.5
1993	63.2
1902	63.4
1987	64.1
1924	64.1
2003	64.6
1989	64.8
1928	65
1996	65.2
1999	65.4

Wettest
Year	Precipitation, in
1993	12.83
1905	11.73
1970	11.49
1936	10.02
1926	9.71
2003	9.65
1934	9.55
1986	9.18
2008	8.95
1931	8.27

Driest
Year	Precipitation, in
1940	0.05
1897	0.20
1976	0.45
2023	0.55
2015	0.56
1979	0.62
1981	0.63
1960	0.65
1950	0.65
1939	0.66

The hottest, coldest and wettest days

Hottest day: 100°F; 5 September 2026
Coldest night: 53°F; 29 September 2026
Wettest day: 0.52 in; 10 September 2026

Every month, season and year

Months

Seasons

Years

Jefferson City, MO the day's answers

All-time records

Every answer in words

September 2026 brought 1.10 in of precipitation in Jefferson City, MO, the driest September since 2023, 15th driest of 127.
The hottest day of September 2026 in Jefferson City, MO: 100°F on Saturday 5 September 2026.
The coldest night of September 2026 in Jefferson City, MO: a low of 53°F on Tuesday 29 September 2026.
The wettest day of September 2026 in Jefferson City, MO: 0.52 in on Thursday 10 September 2026.