Indianapolis, IN: December

31 December 2025: December 2025 averaged 32.1°F in Indianapolis, IN, the coldest December since 2017, 68th coldest of 154.

December 2025

Mean temperature: 32.1°F; Coldest since 2017; 68th coldest of 154
Precipitation: 2.39 in; Driest since 2023; 59th driest of 155

A normal December in Indianapolis, IN (1991 to 2020): a mean temperature of 33.8°F, between 28.4°F and 38.4°F in eight years of ten and 2.71 in of precipitation, between 1.44 in and 5.27 in in eight years of ten.

The mean temperature of every December in Indianapolis, IN since 1872: 32.1°F in 2025; the lowest is 18.5°F, in 1963.

Normal range, 28.4 to 38.4°F

Every year, ranked, as a table

Every December in Indianapolis, IN from 1871 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	32.1	87	39.8	73	24.5	90	2.39	96	0
2024	36.1	31	43.2	36	29.1	34	4.73	23	0
2023	40.8	7	47.6	7	34	8	1.26	136	0
2022	33.4	68	40.5	66	26.3	70	2.63	82	0
2021	42.1	5	51.6	3	32.5	13	4.23	35	0
2020	34.7	49	42.3	47	27.1	59	1.63	125	0
2019	37	25	45.5	18	28.6	38	3.05	60	0
2018	36.5	28	43.8	31	29.2	33	3.79	44	0
2017	30.2	105	38.5	93	22	113	1.12	139	0
2016	30.3	104	37	109	23.7	97	1.52	129	0
2015	42.6	3	49.3	5	35.9	3	5.59	9	0
2014	33.3	70	38.8	91	27.8	46	2.55	87	0
2013	29.9	109	37.4	104	22.5	109	4.44	28	0
2012	38.4	19	44.9	21	31.8	16	2.58	84	0
2011	37.8	22	44.7	23	30.9	20	5.10	17	0
2010	25.4	135	31.8	143	19	134	1.86	117	0
2009	31.1	95	37.7	99	24.4	93	3.30	53	0
2008	30.7	100	39.5	80	21.9	116	5.58	10	0
2007	34.1	62	40.4	68	27.7	48	5.55	11	0
2006	38.7	15	47	10	30.5	25	5.24	14	0
2005	27.1	128	33.4	133	20.8	123	2.69	80	0
2004	31.8	89	39.6	78	24	94	1.95	110	0
2003	34.4	55	41.1	59	27.6	51	3.48	47	0
2002	33	74	39.9	71	26.1	74	3.02	64	0
2001	38.1	21	45.2	20	31.1	19	3.01	65	0
2000	19.7	152	27.6	153	11.9	152	2.76	76	0
1999	34.6	51	42.6	39	26.6	65	2.61	83	0
1998	36.5	28	44.6	24	28.3	40	1.00	145	0
1997	33.4	68	39.3	86	27.5	53	1.33	135	0
1996	34.4	55	41.2	58	27.6	51	2.75	78	0
1995	28.5	121	37.2	106	19.9	130	2.72	79	0
1994	38.8	13	45.4	19	32.3	14	1.66	123	0
1993	32.4	82	38.3	96	26.5	68	2.18	102	0
1992	33.3	70	39.7	77	26.9	61	1.89	114	0
1991	35.7	41	43.5	32	27.9	44	1.45	131	0
1990	34.6	51	43.9	30	25.3	82	7.72	1	0
1989	18.7	153	28.1	152	9.4	154	1.90	113	0
1988	31.7	91	40.9	62	22.5	109	2.50	90	0
1987	35.8	37	42	51	29.5	29	4.77	22	0
1986	32.3	83	38	98	26.5	68	1.71	121	0
1985	22.4	149	31	146	13.9	149	3.30	53	0
1984	38.8	13	47	10	30.7	22	4.33	31	0
1983	20.1	151	27.4	154	12.9	151	3.43	48	0
1982	40.2	12	46.7	13	33.6	10	5.78	7	0
1981	27.7	127	35.2	124	20.3	127	3.40	49	0
1980	31.8	89	38.9	89	24.6	89	0.78	150	0
1979	34.8	47	43.4	35	26.3	70	2.57	86	0
1978	34.3	57	41.5	55	27.2	57	4.03	40	0
1977	29.2	116	37.3	105	21.1	122	4.31	33	0
1976	24.5	139	34.7	126	14.4	147	0.45	155	0
1975	32.8	77	39.5	80	26	75	3.71	46	0
1974	32.9	75	38.3	96	27.5	53	2.81	74	0
1973	30.8	98	38.5	93	23.2	103	4.27	34	0
1972	31.9	88	38.9	89	24.8	88	2.83	73	0
1971	38.4	19	46.4	16	30.4	27	6.02	5	0
1970	34.7	49	43.5	32	25.8	78	2.07	108	0
1969	28.1	126	34.5	128	21.8	117	2.04	109	0
1968	30.6	101	37.6	100	23.6	99	4.18	36	0
1967	33.7	65	40.7	65	26.6	65	4.92	19	0
1966	32.7	80	39.4	85	26	75	5.23	15	0
1965	38.6	17	46.5	15	30.6	24	2.97	69	0
1964	32.2	84	39.8	73	24.5	90	3.05	60	0
1963	18.5	154	26.8	155	10.2	153	0.86	147	0
1962	25.4	135	34.6	127	16.3	140	1.09	142	0
1961	29	119	36.1	122	22	113	3.05	60	0
1960	24.5	139	32.9	136	16.2	142	1.88	115	0
1959	35.9	36	42.9	37	28.9	36	2.90	71	0
1958	24.2	142	33.7	131	14.7	146	0.47	154	0
1957	36.2	30	44.6	24	27.8	46	6.70	2	0
1956	38.7	15	45.6	17	31.9	15	3.86	43	0
1955	28.6	120	36.8	113	20.5	125	0.70	151	0
1954	32.2	84	39	88	25.4	81	2.10	104	0
1953	32.8	77	42.5	44	23	105	2.42	95	0
1952	34.8	47	41	61	28.7	37	3.01	65	0
1951	30.6	101	39.5	80	21.7	118	4.68	25	0
1950	23.4	146	32.5	138	14.3	148	3.00	67	0
1949	35.8	37	44.9	21	26.8	63	4.32	32	0
1948	34.3	57	42.6	39	26	75	3.36	52	0
1947	31.7	91	39.5	80	23.8	96	1.61	126	0
1946	35.5	42	44	29	26.9	61	3.03	63	0
1945	23.9	144	31.6	144	16.2	142	2.49	92	0
1944	25.3	137	32.3	140	18.3	136	1.11	140	0
1943	28.5	121	37.5	102	19.6	131	1.05	144	0
1942	28.3	124	34.3	130	22.2	111	1.70	122	0
1941	38.5	18	44.5	27	32.6	12	1.58	127	0
1940	37.7	23	44.6	24	30.7	22	2.58	84	0
1939	36.1	31	42.8	38	29.4	30	1.13	137	0
1938	34.3	57	40.9	62	27.7	48	1.46	130	0
1937	29.5	114	35.1	125	23.9	95	3.77	45	0
1936	35.8	37	43.5	32	28.2	42	3.20	58	0
1935	25.9	132	32.4	139	19.4	132	1.84	118	0
1934	30.2	105	36.7	115	23.6	99	1.87	116	0
1933	36	33	44.2	28	27.9	44	2.17	103	0
1932	32.5	81	39.8	73	25.1	85	4.70	24	0
1931	41.2	6	47.3	8	35.1	5	4.41	29	0
1930	31.1	95	37	109	25.2	83	0.80	149	0
1929	31.7	91	38.5	93	24.9	87	4.14	37	0
1928	35.4	43	42.4	46	28.4	39	2.19	101	0
1927	30.8	98	38.8	91	22.7	108	2.99	68	0
1926	29.7	112	36.4	118	22.9	106	1.95	110	0
1925	28.5	121	35.5	123	21.5	119	1.09	142	0
1924	28.2	125	36.5	117	20	128	5.53	12	0
1923	42.4	4	49.6	4	35.3	4	5.60	8	0
1922	33.5	66	41.4	57	25.5	79	4.45	27	0
1921	35.2	46	41.5	55	29	35	3.27	55	0
1920	33.2	72	39.6	78	26.8	63	3.27	55	0
1919	26.1	131	33.3	134	18.9	135	0.85	148	0
1918	40.3	11	46.6	14	34	8	6.19	3	0
1917	22.8	148	30.3	149	15.3	145	1.10	141	0
1916	29.5	114	37.5	102	21.5	119	2.50	90	0
1915	30.9	97	36.8	113	25.1	85	5.15	16	0
1914	25.7	134	32.1	142	19.4	132	3.37	50	0
1913	37.2	24	42.5	44	31.8	16	0.49	153	0
1912	34.6	51	42.6	39	26.6	65	1.43	133	0
1911	36.7	26	42.6	39	30.8	21	2.54	88	0
1910	26.9	129	33.5	132	20.4	126	1.73	120	0
1909	23.4	146	30.5	148	16.3	140	2.90	71	0
1908	34.5	54	41.7	52	27.3	56	1.54	128	0
1907	34.3	57	40.4	68	28.3	40	3.23	57	0
1906	34.1	62	40.8	64	27.5	53	3.37	50	0
1905	33.5	66	39.9	71	27.2	57	2.20	99	0
1904	29.2	116	37	109	21.4	121	4.85	21	0
1903	24.2	142	32.2	141	16.2	142	0.58	152	0
1902	29.8	110	36.3	119	23.3	101	4.06	39	0
1901	26.9	129	33.2	135	20.6	124	4.09	38	0
1900	32.9	75	39.5	80	26.3	70	1.41	134	0
1899	29.8	110	36.7	115	22.9	106	2.67	81	0
1898	29.2	116	36.3	119	22	113	2.08	107	0
1897	31.2	94	37.1	107	25.2	83	3.09	59	0
1896	36	33	42.3	47	29.6	28	1.13	137	0
1895	34.1	62	40.5	66	27.7	48	4.86	20	0
1894	35.8	37	42.2	49	29.4	30	2.09	106	0
1893	32.8	77	40.1	70	25.5	79	2.23	98	0
1892	30	108	36.3	119	23.7	97	1.84	118	0
1891	40.5	10	48	6	33.1	11	2.96	70	0
1890	33.2	72	39.2	87	27.1	59	1.64	124	0
1889	46.2	1	54.4	1	38	2	2.76	76	0
1888	35.3	44	41.1	59	29.4	30	1.91	112	0
1887	30.4	103	37.6	100	23.2	103	4.52	26	0
1886	24.9	138	32.9	136	16.9	138	2.20	99	0
1885	32.2	84	39.8	73	24.5	90	2.45	93	0
1884	29.7	112	37.1	107	22.2	111	6.05	4	0
1883	34.2	61	42.1	50	26.3	70	4.34	30	0
1882	30.1	107	36.9	112	23.3	101	2.53	89	0
1881	40.6	9	47	10	34.2	6	5.40	13	0
1880	24.3	141	30.8	147	17.8	137	1.44	132	0
1879	35.3	44	42.6	39	28	43	5.10	17	0
1878	25.8	133	31.6	144	20	128	3.95	42	0
1877	45.6	2	51.8	2	39.4	1	2.45	93	0
1876	21	150	28.9	151	13.1	150	0.90	146	0
1875	40.7	8	47.3	8	34.2	6	4.01	41	0
1874	36	33	41.6	54	30.5	25	2.79	75	0
1873	36.7	26	41.7	52	31.6	18	5.90	6	0
1872	23.5	145	30.1	150	16.9	138	2.10	104	0
1871			34.4	129			2.39	96	30

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1889	46.2
1877	45.6
2015	42.6
1923	42.4
2021	42.1
1931	41.2
2023	40.8
1875	40.7
1881	40.6
1891	40.5

Coldest
Year	Mean, °F
1963	18.5
1989	18.7
2000	19.7
1983	20.1
1876	21
1985	22.4
1917	22.8
1950	23.4
1909	23.4
1872	23.5

Wettest
Year	Precipitation, in
1990	7.72
1957	6.70
1918	6.19
1884	6.05
1971	6.02
1873	5.90
1982	5.78
1923	5.60
2015	5.59
2008	5.58

Driest
Year	Precipitation, in
1976	0.45
1958	0.47
1913	0.49
1903	0.58
1955	0.70
1980	0.78
1930	0.80
1919	0.85
1963	0.86
1876	0.90

The hottest, coldest and wettest days

Hottest day: 67°F; 28 December 2025
Coldest night: -4°F; 15 December 2025, 14 December 2025
Wettest day: 0.87 in; 18 December 2025

Every month, season and year

Months

Seasons

Years

Indianapolis, IN the day's answers

All-time records

Every answer in words

December 2025 brought 2.39 in of precipitation in Indianapolis, IN, the driest December since 2023, tied 59th driest of 155 (with 1871).
The hottest day of December 2025 in Indianapolis, IN: 67°F on Sunday 28 December 2025.
The coldest night of December 2025 in Indianapolis, IN: a low of -4°F on Monday 15 December 2025 and Sunday 14 December 2025.
The wettest day of December 2025 in Indianapolis, IN: 0.87 in on Thursday 18 December 2025.