Jefferson City, MO: Summer

31 August 2026: Summer 2026 averaged 77.7°F in Jefferson City, MO, the warmest summer since 2025, tied 33rd warmest of 121 (with 2002 and 1956).

Summer 2026

Mean temperature: 77.7°F; Warmest since 2025; 33rd warmest of 121
Precipitation: 9.17 in; Driest since 2018; 35th driest of 123

A normal summer in Jefferson City, MO (1991 to 2020): a mean temperature of 76.4°F, between 74.6°F and 78.9°F in eight years of ten and 10.18 in of precipitation, between 7.19 in and 16.19 in in eight years of ten.

The mean temperature of every summer in Jefferson City, MO since 1895: 77.7°F in 2026; the highest is 83°F, in 1936.

Normal range, 74.6 to 78.9°F

Every year, ranked, as a table

Every summer 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	33	87	75	68.3	9	9.17	89	0
2025	78.4	18	88.1	59	68.7	8	9.77	81	0
2024	77.9	29	87.6	68	68.1	12	12.38	42	0
2023	78.4	18	89.5	32	67.3	21	12.08	47	0
2022	79.6	9	90.3	21	69	4	11.15	61	0
2021	78.8	14	88.7	46	69	4	13.01	35	0
2020	78	27	87.8	66	68.2	10	14.39	28	0
2019									50
2018	78.6	16	88.9	44	68.2	10	8.77	95	3
2017	76.5	55	86.8	80	66.2	35	12.28	44	0
2016	78.1	25	87.3	71	68.8	6	15.92	17	0
2015	76.1	65	85.4	107	66.9	27	13.82	30	0
2014	75.6	77	85.5	104	65.7	42	7.66	104	0
2013	75.5	79	85.7	101	65.4	50	8.46	98	0
2012	80	7	93	8	67	26	6.06	114	0
2011	80.7	4	90.5	18	70.9	1	7.45	106	0
2010	79.9	8	89.3	36	70.5	2	14.96	22	0
2009	74.4	103	84.2	116	64.5	68	12.07	49	0
2008	76.2	64	86	94	66.3	32	17.90	9	0
2007	78.2	22	88.7	46	67.6	16	6.58	111	0
2006	78.7	15	89.8	27	67.6	16	7.60	105	1
2005	78.4	18	89.7	29	67.1	23	11.64	52	3
2004	72.5	116	82.3	122	62.8	91	16.83	15	0
2003	75.9	67	86.6	85	65.2	55	9.49	84	0
2002	77.7	33	88.1	59	67.2	22	9.19	88	1
2001	76.4	58	86.3	89	66.5	29	11.64	52	2
2000	75.9	67	85.6	103	66.3	32	14.40	27	1
1999	76.4	58	86.8	80	65.9	39	6.05	115	1
1998	76.4	58	84.8	109	67.9	14	12.11	46	5
1997	74.7	95	84.5	112	64.9	62			1
1996	74.7	95	84	118	65.4	50	10.01	79	1
1995	77.5	37	87.2	73	67.9	14	8.83	93	1
1994	75.8	70	86	94	65.5	46	9.46	85	3
1993	76.8	51	86	94	67.6	16	30.93	1	0
1992	72.3	118	82	123	62.6	92	10.36	70	1
1991	77.2	42	88	61	66.4	31	9.13	90	0
1990	75.8	70	85.4	107	66.2	35	14.52	26	0
1989	74.8	93	86	94	63.6	81	15.11	18	0
1988	77.1	45	89.6	30	64.7	65	8.72	96	3
1987	75.4	82	90.3	21	60.3	118	9.22	87	6
1986	75.6	77	89.2	38	62	105	6.16	112	0
1985	73.3	112	84.2	116	62.4	99	18.11	8	4
1984			89	42			4.50	121	18
1983			89.4	35			6.99	109	18
1982			84	118			19.38	2	18
1981	75	89	85.9	100	64.2	73	18.17	7	0
1980	80.6	5	94.1	5	67.1	23	7.99	102	1
1979	75.3	86	86.8	80	63.8	78	8.29	100	0
1978	76.5	55	87.9	64	65.2	55	10.04	78	1
1977	75.9	67	88	61	63.8	78	10.47	68	0
1976									32
1975									70
1974									64
1973	76.1	65	89.5	32	62.6	92	14.21	29	1
1972	75.4	82	89.8	27	61	115	5.51	118	2
1971									33
1970	74.9	92	88	61	61.7	111	10.27	73	3
1969	75.3	86	88.2	57	62.5	96	14.84	25	0
1968									31
1967	71.9	120	85.7	101	58	121	12.14	45	0
1966									33
1965	74.1	108	86.5	87	61.8	108	18.36	6	1
1964	75.4	82	89.2	38	61.8	108	10.20	74	2
1963	76.4	58	89.9	25	62.9	90	8.19	101	1
1962	75.5	79	90.2	23	60.9	117	5.97	116	1
1961	73.1	113	86.2	92	60.1	119	13.48	33	0
1960	75	89	88.6	52	61.4	113	5.78	117	0
1959	75.8	70	89.6	30	62	105	7.42	107	7
1958	74.4	103	86.4	88	62.3	101	17.68	10	2
1957	76.3	62	89.3	36	63.4	85	14.99	21	1
1956	77.7	33	89.5	32	65.9	39	17.60	12	2
1955	77.1	45	88.7	46	65.6	43	10.83	65	0
1954	80.6	5	93.1	7	68	13	9.57	82	0
1953	78.9	13	92.8	9	65.1	59	4.51	120	0
1952	78.5	17	91.5	12	65.4	50	12.31	43	0
1951									28
1950	71.3	121	82.9	120	59.7	120	12.39	41	0
1949	75.8	70	86.7	83	64.9	62	16.49	16	0
1948	74.4	103	86.1	93	62.6	92	17.66	11	0
1947	76.5	55	88.6	52	64.4	70	10.29	72	0
1946	75	89	87.6	68	62.4	99	18.98	4	0
1945	73.5	111	84.6	111	62.6	92	12.08	47	7
1944	76.7	53	88.7	46	64.7	65	10.35	71	0
1943	78.2	22	89	42	67.4	20	11.27	59	0
1942	74.3	106	86	94	62.5	96	18.99	3	1
1941	76.7	53	89.2	38	64.2	73	12.58	38	0
1940	74.7	95	87.3	71	62.2	103	13.62	32	2
1939	75.7	75	87.9	64	63.5	83	8.34	99	0
1938	76.3	62	87.7	67	65	60	10.08	77	1
1937	76.9	49	88.5	54	65.4	50	9.27	86	1
1936	83	1	97.1	2	68.8	6	4.19	122	1
1935	75.4	82	85.5	104	65.3	54	11.28	58	1
1934	82.9	2	96.5	3	69.3	3	11.10	62	5
1933	78.2	22	90.9	15	65.5	46	8.99	92	1
1932	78	27	90.4	20	65.6	43	11.59	54	2
1931	78.3	21	90.5	18	65.9	39	8.83	93	3
1930	77.6	36	90.8	16	64.3	72	8.60	97	1
1929	77.8	31	91.3	14	64	77	11.41	56	2
1928	74.8	93	84.8	109	64.5	68	17.53	13	3
1927	72.4	117	82.5	121	62.3	101	12.50	39	2
1926	75.7	75	87	75	64.4	70	12.41	40	4
1925	77.2	42	88.8	45	65.6	43	12.66	37	1
1924	74.5	101	84.3	113	64.6	67	14.86	24	5
1923	76.9	49	87.4	70	66.2	35	15.03	19	4
1922	77.1	45	88.7	46	65.5	46	9.03	91	0
1921	77.9	29	88.7	46	67.1	23	12.92	36	0
1920	74.7	95	86.3	89	63.1	87	10.12	75	2
1919	77.1	45	89.1	41	65	60	10.80	66	0
1918	79.3	12	92.1	10	66.5	29	6.10	113	0
1917	74.5	101	86	94	63.1	87	7.73	103	1
1916	77.8	31	89.9	25	65.5	46	10.38	69	3
1915	72	119	82	123	62	105	13.33	34	6
1914	79.4	11	93.6	6	65.2	55	11.33	57	0
1913	79.6	9	95.5	4	63.7	80	7.14	108	0
1912	74.1	108	86.6	85	61.4	113	14.87	23	2
1911	77.4	39	91.7	11	63.1	87	6.87	110	1
1910	73.1	113	85.5	104	61	115	13.82	30	2
1909	76.8	51	90.2	23	63.5	83	5.39	119	0
1908	74.7	95	87.1	74	62.2	103	10.63	67	0
1907	74.7	95	86.9	77	62.5	96	12.03	50	1
1906	74.2	107	86.7	83	61.8	108	11.59	54	0
1905	75.2	88	86.9	77	63.6	81	10.12	75	2
1904	73	115	84.3	113	61.7	111	11.93	51	0
1903	73.8	110	84.3	113	63.2	86	9.57	82	0
1902	75.5	79	86.9	77	64.1	76	18.92	5	5
1901	82.9	2	98.2	1	67.5	19	3.61	123	2
1900	78.1	25	91.5	12	64.8	64	15.02	20	2
1899	77.4	39	90.7	17	64.2	73	9.99	80	0
1898	77.5	37	88.3	55	66.7	28	11.27	59	0
1897	77.2	42	88.2	57	66.2	35	10.85	64	0
1896	77.3	41	88.3	55	66.3	32	11.05	63	0
1895	75.8	70	86.3	89	65.2	55	17.36	14	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1936	83
1934	82.9
1901	82.9
2011	80.7
1980	80.6
1954	80.6
2012	80
2010	79.9
2022	79.6
1913	79.6

Coldest
Year	Mean, °F
1950	71.3
1967	71.9
1915	72
1992	72.3
1927	72.4
2004	72.5
1904	73
1961	73.1
1910	73.1
1985	73.3

Wettest
Year	Precipitation, in
1993	30.93
1982	19.38
1942	18.99
1946	18.98
1902	18.92
1965	18.36
1981	18.17
1985	18.11
2008	17.90
1958	17.68

Driest
Year	Precipitation, in
1901	3.61
1936	4.19
1984	4.50
1953	4.51
1909	5.39
1972	5.51
1960	5.78
1962	5.97
1999	6.05
2012	6.06

The hottest, coldest and wettest days

Hottest day: 99°F; 31 August 2026
Coldest night: 56°F; 3 June 2026
Wettest day: 2.16 in; 6 August 2026

Every month, season and year

Months

Seasons

Years

Jefferson City, MO the day's answers

All-time records

Every answer in words

Summer 2026 brought 9.17 in of precipitation in Jefferson City, MO, the driest summer since 2018 (2019 excluded: 37 of 92 days missing), 35th driest of 123.
The hottest day of summer 2026 in Jefferson City, MO: 99°F on Monday 31 August 2026.
The coldest night of summer 2026 in Jefferson City, MO: a low of 56°F on Wednesday 3 June 2026.
The wettest day of summer 2026 in Jefferson City, MO: 2.16 in on Thursday 6 August 2026.