Peoria, IL: December

31 December 2025: December 2025 averaged 28.1°F in Peoria, IL, the coldest December since 2013, 54th coldest of 142.

December 2025

Mean temperature: 28.1°F; Coldest since 2013; 54th coldest of 142
Precipitation: 2.00 in; Wettest since 2024; 63rd wettest of 141

A normal December in Peoria, IL (1991 to 2020): a mean temperature of 31.5°F, between 24.2°F and 34.9°F in eight years of ten and 1.95 in of precipitation, between 1.05 in and 3.80 in in eight years of ten.

The mean temperature of every December in Peoria, IL since 1883: 28.1°F in 2025; the lowest is 15.2°F, in 1983.

Normal range, 24.2 to 34.9°F

Every year, ranked, as a table

Every December in Peoria, IL from 1883 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	28.1	89	36.8	73	19.5	99	2.00	63	0
2024	33.7	31	40.7	33	26.7	25	2.50	38	0
2023	39.9	3	46.2	4	33.5	3	3.05	22	0
2022	30.2	67	38.2	58	22.2	75	2.72	30	0
2021	39.5	4	49.1	2	30	10	1.54	87	0
2020	32.3	43	40.9	31	23.8	57	1.27	101	0
2019	34.9	16	43.8	10	26.1	29	2.39	43	0
2018	34	27	42.1	21	25.9	30	3.19	19	0
2017	28.4	85	36.7	76	20.1	93	0.80	125	0
2016	28.4	85	34.8	96	22	78	1.22	105	0
2015	41.1	2	48	3	34.2	2	6.31	2	0
2014	33.5	32	39.6	45	27.4	19	1.23	104	0
2013	24.6	115	33.1	110	16.2	118	1.49	89	0
2012	35.3	14	42.5	19	28.2	15	1.98	64	0
2011	35.4	13	42.6	17	28.1	16	2.88	27	0
2010	23.3	124	30	130	16.6	117	3.77	11	0
2009	27.8	91	34.4	99	21.2	89	4.17	6	0
2008	24.2	116	33.3	109	15.2	126	4.05	9	0
2007	28.7	83	34.8	96	22.6	71	3.40	16	0
2006	34.1	24	42.2	20	25.9	30	3.14	20	0
2005	24	119	30.3	125	17.8	110	1.31	99	0
2004	31	58	39.2	51	22.7	70	1.40	91	0
2003	32.9	37	40.1	39	25.7	34	1.92	66	0
2002	32.1	46	40.1	39	24	53	2.21	55	0
2001	34.5	19	42	23	27	24	1.35	95	0
2000	16.1	140	24.1	141	8.1	141	0.96	117	0
1999	31.5	52	40	41	23	65	2.55	36	0
1998	33.3	33	41.8	27	24.8	44	1.75	74	0
1997	30.8	63	35.3	89	26.4	28	1.69	78	0
1996	28.6	84	35.8	84	21.5	83	1.06	116	0
1995	27.5	96	35.5	88	19.5	99	0.32	139	0
1994	34.6	18	42	23	27.3	20	2.21	55	0
1993	31.4	53	38.1	60	24.7	46	1.19	106	0
1992	29.5	76	36.8	73	22.2	75	2.99	24	0
1991	32	47	39.8	43	24.1	52	2.06	60	0
1990	27.7	94	36.1	81	19.3	104	3.70	12	0
1989	16.2	139	25.3	140	7.1	143	0.87	123	0
1988	29.6	75	39.5	47	19.8	96	2.23	54	0
1987	32.4	42	38.2	58	26.6	26	4.15	7	0
1986	30.9	60	37.2	69	24.6	50	2.60	34	0
1985	18.5	138	28	136	9.1	139	2.24	53	0
1984	33.9	29	42.8	12	25	40	3.82	10	0
1983	15.2	142	21.8	143	8.5	140	2.65	31	0
1982	37.4	8	44.5	8	30.2	8	5.45	3	0
1981	27.2	98	35.1	92	19.4	102	1.24	103	0
1980	28.9	81	36.3	80	21.5	83	2.25	51	0
1979	31.8	49	40.5	35	23	65	2.33	47	0
1978	26.8	100	34.4	99	19.2	105	3.54	15	0
1977	22.8	127	30.3	125	15.3	124	2.25	51	0
1976	21	132	31.8	120	10.1	138	0.38	136	0
1975	30.2	67	36.6	77	23.8	57	2.04	62	0
1974	29.9	70	35.8	84	23.9	55	1.93	65	0
1973	24.8	114	32.1	116	17.5	112	4.11	8	0
1972	23.7	120	30.1	127	17.4	113	2.48	40	0
1971	34.3	21	40.9	31	27.7	18	4.96	4	0
1970	29.9	70	37.9	64	21.8	80	1.30	100	0
1969	25.7	109	32.1	116	19.4	102	1.13	110	0
1968	27.6	95	35.2	91	20	94	2.80	28	0
1967	29.8	72	36.6	77	22.9	67	2.63	32	0
1966	29.2	80	35.9	82	22.5	73	3.00	23	0
1965	35.3	14	43.4	11	27.3	20	3.35	17	0
1964	25.7	109	32.6	112	18.8	107	1.12	112	0
1963	15.4	141	23.4	142	7.5	142	0.78	126	0
1962	23.6	121	32.8	111	14.4	130	0.33	138	0
1961	24.1	117	32	119	16.1	122	1.69	78	0
1960	23.6	121	32.5	113	14.7	128	0.53	131	0
1959	34.7	17	40.7	33	28.7	13	1.89	68	0
1958	23	126	31.6	121	14.4	130	0.49	132	0
1957	34.1	24	42.7	14	25.5	37	3.55	14	0
1956	31.7	50	38.4	57	25.1	38	1.90	67	0
1955	26.3	103	34.3	101	18.2	108	0.36	137	0
1954	31	58	37.2	69	24.9	41	1.80	72	0
1953	31.1	57	39.6	45	22.5	73	2.33	47	0
1952	32.3	43	38.7	54	25.9	30	1.89	68	0
1951	26.1	106	35.9	82	16.2	118	1.16	108	0
1950	20.8	133	28.7	133	12.8	135	0.95	118	0
1949	33.3	33	42	23	24.6	50	6.34	1	0
1948	31.4	53	39.5	47	23.3	62	2.61	33	0
1947	31.3	55	39.1	52	23.5	61	3.13	21	0
1946	33	35	42	23	24	53	1.76	73	0
1945	21.6	131	28.7	133	14.5	129	2.39	43	0
1944	22.2	129	29.1	132	15.3	124	0.90	121	0
1943	26.2	104	34.6	98	17.9	109	0.58	130	0
1942	23.6	121	31.1	124	16.1	122	2.58	35	0
1941	36.4	11	42.8	12	30.1	9	1.38	93	0
1940	34	27	40	41	27.9	17	1.67	80	0
1939	33.9	29	42.7	14	25.1	38	0.61	129	0
1938	30	69	37.2	69	22.8	68	1.43	90	0
1937	26.7	102	32.2	115	21.3	88	2.06	60	0
1936	34.1	24	42.6	17	25.6	36	3.26	18	0
1935	23.1	125	30.1	127	16.2	118	1.39	92	0
1934	26	107	32.5	113	19.5	99	1.34	96	0
1933	32.5	41	40.4	37	24.7	46	1.18	107	0
1932	27.8	91	35.7	87	20	94	4.46	5	0
1931	38.6	5	44.8	6	32.3	4	2.26	49	0
1930	29.8	72	36.6	77	23.1	64	0.29	141	0
1929	28.2	88	35.1	92	21.4	87	1.07	115	0
1928	32	47	39.4	50	24.7	46	2.53	37	0
1927	25.9	108	35.1	92	16.7	116	2.91	25	0
1926	26.8	100	33.7	105	19.8	96	1.12	112	0
1925	24.9	113	32.1	116	17.6	111	1.12	112	0
1924	21.7	130	30.1	127	13.4	132	2.40	42	0
1923	38	7	45.6	5	30.4	7	2.21	55	0
1922	28.8	82	38.1	60	19.6	98	1.38	93	0
1921	32.2	45	39.7	44	24.7	46	2.91	25	0
1920	30.9	60	38.5	55	23.2	63	1.87	70	0
1919	20.6	135	27.9	137	13.4	132	0.30	140	0
1918	36.6	10	44.3	9	28.9	12	2.80	28	0
1917	19.9	136	27.8	138	12	136	0.63	128	0
1916	25.2	112	34.3	101	16.2	118	1.75	74	0
1915	27.8	91	34.1	103	21.5	83	1.66	82	0
1914	20.8	133	28.6	135	13	134	1.81	71	0
1913	35.7	12	41.7	28	29.7	11	0.74	127	0
1912	32.6	38	41.6	29	23.7	59	1.13	110	0
1911	33	35	40.2	38	25.8	33	2.13	58	0
1910	25.4	111	33.7	105	17.1	114	1.25	102	0
1909	19.2	137	26.7	139	11.6	137	2.50	38	0
1908	29.4	77	37.9	64	20.9	91	0.82	124	0
1907	32.6	38	39.5	47	25.7	34	1.66	82	0
1906	30.6	65	37.5	67	23.6	60	1.65	84	0
1905	29.8	72	38.1	60	21.5	83	1.60	85	0
1904	30.6	65	37.6	66	23.9	55	1.33	97	1
1903	24.1	117	31.4	122	16.9	115	0.95	118	0
1902			35.3	89	20.8	92	1.54	87	4
1901	26.2	104	33.6	107	18.9	106	2.26	49	1
1900	31.2	56	37.5	67	24.9	41	0.39	135	0
1899	29.4	77	36.8	73	21.9	79	2.12	59	0
1898	28.4	85	35	95	22.1	77	0.93	120	1
1897	27.4	97	33.6	107	21.1	90	1.16	108	0
1896	36.8	9	42.7	14	30.7	6	0.40	134	1
1895	32.6	38	38	63	27.2	22			0
1894	34.2	23	41.2	30	27.2	22	1.58	86	0
1893	30.8	63	38.8	53	21.7	82	1.74	77	2
1892	27.9	90	33.9	104	21.8	80	1.75	74	0
1891	38.3	6	44.8	6	31.7	5	2.39	43	0
1890	34.3	21	42.1	21	26.6	26	0.41	133	0
1889	43.1	1	50.1	1	36	1	1.33	97	0
1888	34.5	19	40.5	35	28.4	14	2.39	43	0
1887	29.3	79	35.8	84	22.8	68	3.65	13	0
1886	22.3	128	29.4	131	15.2	126	0.89	122	0
1885	30.9	60	37	72	24.8	44	2.44	41	0
1884	26.9	99	31.2	123	22.6	71			0
1883	31.7	50	38.5	55	24.9	41	1.67	80	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1889	43.1
2015	41.1
2023	39.9
2021	39.5
1931	38.6
1891	38.3
1923	38
1982	37.4
1896	36.8
1918	36.6

Coldest
Year	Mean, °F
1983	15.2
1963	15.4
2000	16.1
1989	16.2
1985	18.5
1909	19.2
1917	19.9
1919	20.6
1950	20.8
1914	20.8

Wettest
Year	Precipitation, in
1949	6.34
2015	6.31
1982	5.45
1971	4.96
1932	4.46
2009	4.17
1987	4.15
1973	4.11
2008	4.05
1984	3.82

Driest
Year	Precipitation, in
1930	0.29
1919	0.30
1995	0.32
1962	0.33
1955	0.36
1976	0.38
1900	0.39
1896	0.40
1890	0.41
1958	0.49

The hottest, coldest and wettest days

Hottest day: 61°F; 28 December 2025
Coldest night: -7°F; 14 December 2025
Wettest day: 0.87 in; 28 December 2025

Every month, season and year

Months

Seasons

Years

Peoria, IL the day's answers

All-time records

Every answer in words

December 2025 brought 2.00 in of precipitation in Peoria, IL, the wettest December since 2024, 63rd wettest of 141.
The hottest day of December 2025 in Peoria, IL: 61°F on Sunday 28 December 2025.
The coldest night of December 2025 in Peoria, IL: a low of -7°F on Sunday 14 December 2025.
The wettest day of December 2025 in Peoria, IL: 0.87 in on Sunday 28 December 2025.