St Louis, MO: December

31 December 2025: December 2025 averaged 36.1°F in St Louis, MO, the warmest December since 2024, 72nd warmest of 150.

December 2025

Mean temperature: 36.1°F; Warmest since 2024; 72nd warmest of 150
Precipitation: 0.74 in; Driest since 1989; 12th driest of 145

A normal December in St Louis, MO (1991 to 2020): a mean temperature of 37.2°F, between 32.5°F and 40.9°F in eight years of ten and 1.98 in of precipitation, between 1.10 in and 4.01 in in eight years of ten.

The mean temperature of every December in St Louis, MO since 1874: 36.1°F in 2025; the highest is 49.8°F, in 1889.

Normal range, 32.5 to 40.9°F

Every year, ranked, as a table

Every December in St Louis, MO from 1874 to 2025, 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
2025	36.1	72	46.1	47	26.1	94	0.74	134	0
2024	40.7	20	48.5	24	32.9	19	2.88	38	0
2023	45	5	52.7	5	37.4	4	2.29	59	0
2022	35.9	73	43.9	73	27.8	74	1.96	78	0
2021	47	3	57.9	1	36.1	6	2.75	42	0
2020	38.1	47	47.4	30	28.8	62	1.60	100	0
2019	39.7	27	49.5	16	30	51	1.86	84	0
2018	39	32	47.4	30	30.5	44	3.98	16	0
2017	34.8	84	43.6	74	26.1	94	0.84	131	0
2016	34.7	88	42.9	82	26.6	88	1.13	123	0
2015	45.4	4	53.2	4	37.7	3	11.74	1	0
2014	38.9	34	44.6	63	33.1	17	2.72	45	0
2013	33.4	100	42.6	85	24.2	113	1.96	78	0
2012	41.7	11	49.9	12	33.5	16	2.00	74	0
2011	40.8	18	48.7	22	32.8	20	3.12	34	0
2010	30.3	126	37.1	134	23.4	120	1.30	115	0
2009	33.7	95	40.5	103	26.9	83	4.25	15	0
2008	32.5	108	41.8	92	23.1	124	4.55	12	0
2007	35.5	75	43.1	81	27.8	74	2.75	42	0
2006	40.6	23	49.1	18	32.2	23	2.04	69	0
2005	32	114	38.8	121	25.1	107	1.22	119	0
2004	36.9	66	45.5	55	28.3	69	1.77	93	0
2003	38.6	37	45.9	48	31.4	33	2.34	56	0
2002	37.4	58	45.9	48	29	60	2.02	71	0
2001	39.9	25	47.4	30	32.3	22	3.46	26	0
2000	21.6	149	29.3	149	13.9	149	1.35	111	0
1999	38.2	45	47.4	30	29.1	59	1.84	87	0
1998	37.2	60	45.8	52	28.6	66	0.83	132	0
1997	35	81	40.7	101	29.4	57	1.85	85	0
1996	35.5	75	44.2	71	26.8	85	0.86	130	0
1995	33.8	94	40.5	103	27.1	80	2.85	39	0
1994	41.5	15	48.5	24	34.4	12	1.52	102	0
1993	37.2	60	43.5	76	30.9	41	1.48	104	0
1992	35.6	74	42.7	83	28.6	66	3.66	22	0
1991	39.2	30	46.8	41	31.6	30	2.10	65	0
1990	34.6	90	43.3	78	26	96	6.52	4	0
1989	24.1	147	33.1	146	15.1	147	0.69	135	0
1988	37.2	60	47	39	27.4	78	3.24	31	0
1987	38	49	44.3	69	31.7	29	7.46	3	0
1986	35.4	78	42.1	89	28.6	66	1.06	125	0
1985	27.3	142	36.7	136	17.9	144	3.69	21	0
1984	40.7	20	49.6	14	31.8	28	4.89	9	0
1983	20.5	150	26.6	150	14.3	148	3.75	19	0
1982	41.6	12	49	19	34.1	15	7.82	2	0
1981	31	122	38.7	122	23.4	120	2.01	72	0
1980	36.5	70	45.4	56	27.7	77	0.66	137	0
1979	38.6	37	47.5	28	29.8	53	1.85	85	0
1978	35	81	44.5	66	25.5	101	1.81	89	0
1977	30.6	124	39.1	117	22	129	2.34	56	0
1976	28.5	138	40	109	17	145	1.13	123	0
1975	35.5	75	43.2	79	27.8	74	2.28	60	0
1974	34	91	41.3	97	26.7	87	1.71	97	0
1973	30	130	38.5	124	21.5	135	4.36	14	0
1972	30.3	126	37.4	132	23.3	123	3.54	23	0
1971	40.5	24	49.6	14	31.5	32	6.50	5	0
1970	37	63	47.4	30	26.5	89	1.40	107	0
1969	32.1	113	39	119	25.1	107	1.99	75	0
1968	32.2	111	40.6	102	23.9	114	2.63	49	0
1967	34.8	84	42.7	83	26.9	83	6.20	6	0
1966	34.8	84	42.5	86	27	81	2.49	51	0
1965	41.6	12	51.1	8	32.2	23	3.17	33	0
1964	31.9	115	40.4	105	23.4	120	1.24	118	0
1963	22.2	148	30.6	148	13.7	150	0.67	136	0
1962	31.1	121	40.4	105	21.9	130	1.99	75	0
1961	31.9	115	39.5	114	24.4	111	1.95	80	0
1960	30.9	123	39.3	116	22.5	127	2.13	64	0
1959	39.2	30	45.4	56	33.1	17	1.93	81	0
1958	30.3	126	38.4	128	22.1	128	0.32	143	0
1957	40.7	20	49.4	17	32.1	25	2.78	41	0
1956	38.5	40	45.7	54	31.2	35	3.80	18	0
1955	33.1	101	41.8	92	24.4	111	0.03	145	0
1954	36.7	67	43.5	76	29.9	52	1.90	82	0
1953	37.6	54	47.1	37	28.2	71	0.48	140	0
1952	37	63	44.4	67	29.6	54	1.38	109	0
1951	33.6	97	41.9	90	25.3	104	1.82	88	0
1950	28.8	135	37.2	133	20.5	141	0.58	139	0
1949	39.7	27	48.7	22	30.7	42	4.52	13	0
1948	37.6	54	46.4	44	28.7	65	1.49	103	0
1947	38	49	46.4	44	29.5	55	2.44	52	0
1946	39.8	26	48.8	20	30.7	42	2.35	55	0
1945	27.6	141	34.5	141	20.7	140	1.72	96	0
1944	28	140	34.7	140	21.3	137	1.75	95	0
1943	30.6	124	38.5	124	22.8	125	1.77	93	0
1942	31.2	120	38.9	120	23.5	118	3.24	31	0
1941	39.7	27	46.9	40	32.5	21	1.00	129	0
1940	38.5	40	45.9	48	31.2	35	2.69	46	0
1939	36.2	71	46.6	43	25.8	97	1.25	116	0
1938	34.8	84	42.5	86	27	81	2.56	50	0
1937	31.4	119	36.9	135	25.8	97	3.05	36	0
1936	37.3	59	45.8	52	28.8	62			0
1935	28.8	135	35.7	138	21.9	130			0
1934	31.8	117	38.3	129	25.3	104			0
1933	38.5	40	47.7	26	29.3	58			0
1932	32.4	110	40.8	100	23.9	114			0
1931	43.1	8	50.5	10	35.7	8			0
1930	33.9	93	41	99	26.8	85			0
1929	37.5	56	44.6	63	30.4	45	3.07	35	0
1928	38.7	36	46.3	46	31	39	2.22	62	0
1927	32.5	108	41.4	95	23.5	118	2.31	58	0
1926	33.5	99	41.4	95	25.5	101	1.15	122	0
1925	32.8	104	40.2	108	25.4	103	1.46	105	0
1924	30	130	38.3	129	21.7	132	4.63	11	0
1923	44.4	6	51.8	7	37	5	3.30	30	0
1922	36.7	67	45.2	58	28.2	71	4.98	8	0
1921	38.5	40	45.9	48	31.2	35	2.89	37	0
1920	37.5	56	44.8	60	30.2	49	2.41	54	0
1919	29.7	134	37.6	131	21.7	132	1.22	119	0
1918	43.1	8	50.1	11	36	7	2.69	46	0
1917	26.8	144	34.2	143	19.5	142	0.78	133	0
1916	33.7	95	41.5	94	25.8	97	2.16	63	0
1915	35.3	79	41.9	90	28.8	62	3.34	28	0
1914	28.6	137	34.5	141	22.6	126	2.23	61	0
1913	41.1	16	46.7	42	35.6	9	1.62	99	0
1912	38.6	37	47.1	37	30.1	50	0.42	141	0
1911	38.5	40	44.8	60	32.1	25	1.67	98	0
1910	32.2	111	39.6	113	24.8	110	1.18	121	0
1909	26.4	145	33.3	145	19.4	143	1.89	83	0
1908	38.9	34	47.4	30	30.4	45	0.64	138	0
1907	38	49	44.4	67	31.6	30	2.06	67	0
1906	36.6	69	43.6	74	29.5	55	2.09	66	0
1905	35.3	79	42.3	88	28.3	69	2.06	67	0
1904	34.7	88	43.2	79	26.2	92	1.36	110	0
1903	29.8	133	38.5	124	21	139	1.25	116	0
1902	34	91	39.9	110	28	73	3.81	17	0
1901	30.2	129	36.7	136	23.7	116	3.72	20	0
1900	38	49	44.6	63	31.4	33	0.40	142	0
1899	33	102	39.7	112	26.3	91	1.55	101	0
1898	32.6	106	40.3	107	24.9	109	1.03	127	0
1897	32.8	104	39.1	117	26.5	89	3.45	27	0
1896	40.8	18	47.5	28	34.2	14	1.05	126	0
1895	37	63	44	72	30.4	45	4.66	10	2
1894							2.73	44	9
1893							1.32	112	9
1892	33	102	38.7	122	27.2	79	1.99	75	0
1891	42.8	10	50.8	9	34.7	11	1.32	112	0
1890	37.7	53	44.3	69	31	39	1.32	112	0
1889	49.8	1	57.9	1	41.6	2	1.03	127	0
1888	38.2	45	45.1	59	31.2	35	2.01	72	0
1887	31.8	117	39.9	110	23.7	116	3.54	23	0
1886	29.9	132	38.5	124	21.4	136	2.65	48	0
1885	39	32	47.7	26	30.3	48	2.03	70	0
1884	33.6	97	41.1	98	26.2	92	6.18	7	0
1883	40.9	17	49.8	13	31.9	27	1.78	92	0
1882	32.6	106	39.5	114	25.7	100	1.81	89	0
1881	41.6	12	48.8	20	34.4	12	1.40	107	0
1880	28.3	139	34.9	139	21.6	134	1.80	91	0
1879	35	81	44.7	62	25.3	104	2.84	40	0
1878	26.9	143	32.5	147	21.3	137	3.48	25	0
1877	48.3	2	53.9	3	42.7	1	3.34	28	0
1876	24.7	146	33.7	144	15.7	146	0.18	144	0
1875	43.5	7	52.2	6	34.8	10	2.42	53	0
1874	38.1	47	47.2	36	29	60	1.46	105	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1889	49.8
1877	48.3
2021	47
2015	45.4
2023	45
1923	44.4
1875	43.5
1931	43.1
1918	43.1
1891	42.8

Coldest
Year	Mean, °F
1983	20.5
2000	21.6
1963	22.2
1989	24.1
1876	24.7
1909	26.4
1917	26.8
1878	26.9
1985	27.3
1945	27.6

Wettest
Year	Precipitation, in
2015	11.74
1982	7.82
1987	7.46
1990	6.52
1971	6.50
1967	6.20
1884	6.18
1922	4.98
1984	4.89
1895	4.66

Driest
Year	Precipitation, in
1955	0.03
1876	0.18
1958	0.32
1900	0.40
1912	0.42
1953	0.48
1950	0.58
1908	0.64
1980	0.66
1963	0.67

The hottest, coldest and wettest days

Hottest day: 78°F; 28 December 2025
Coldest night: 7°F; 14 December 2025
Wettest day: 0.45 in; 18 December 2025

Every month, season and year

Months

Seasons

Years

St Louis, MO the day's answers

All-time records

Every answer in words

December 2025 brought 0.74 in of precipitation in St Louis, MO, the driest December since 1989, 12th driest of 145.
The hottest day of December 2025 in St Louis, MO: 78°F on Sunday 28 December 2025.
The coldest night of December 2025 in St Louis, MO: a low of 7°F on Sunday 14 December 2025.
The wettest day of December 2025 in St Louis, MO: 0.45 in on Thursday 18 December 2025.