Quincy, IL: December

31 December 2025: December 2025 averaged 30.9°F in Quincy, IL, the coldest December since 2022, tied 60th coldest of 122 (with 1997).

December 2025

Mean temperature: 30.9°F; Coldest since 2022; 60th coldest of 122
Precipitation: 0.88 in; Driest since 2017; 24th driest of 125

A normal December in Quincy, IL (1991 to 2020): a mean temperature of 33°F, between 26.6°F and 36°F in eight years of ten and 1.55 in of precipitation, between 0.67 in and 3.11 in in eight years of ten.

The mean temperature of every December in Quincy, IL since 1901: 30.9°F in 2025; the lowest is 15.8°F, in 2000.

Normal range, 26.6 to 36°F

Every year, ranked, as a table

Every December in Quincy, IL from 1901 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	30.9	62	40.5	49	21.2	79	0.88	102	0
2024	35.3	26	42.2	36	28.4	18	2.47	29	0
2023	40.3	6	47.1	8	33.5	3	2.26	39	0
2022	30.3	67	39.3	57	22.1	72	1.65	64	1
2021	40.4	5	51.9	1	29.6	10	1.32	78	1
2020	33.3	43	42.6	33	23.9	53	1.24	85	0
2019	36.4	15	45.3	12	27.5	26	1.15	90	0
2018	34.3	33	42.4	35	26.2	38	2.63	24	0
2017	29.8	74	38.3	66	21.4	77	0.17	123	0
2016	28.9	81	36.4	84	21.4	77	1.03	95	0
2015	40.8	3	47.6	4	34	2	5.82	2	0
2014	33.7	40	39.3	57	28.1	19	1.31	80	0
2013	26.6	101	35.6	94	17.5	105	1.08	92	0
2012	35.6	22	43.4	27	27.8	23	1.55	68	0
2011	36.5	14	43.9	20	29	13	2.73	22	0
2010	26.1	106	33.3	107	18.9	95	1.74	61	0
2009	28.7	83	35.7	92	21.7	73	2.33	34	0
2008	26.3	104	36	88	16.6	108	3.19	11	0
2007	29	79	35.8	90	22.3	70	2.71	23	0
2006	35.1	27	43.8	22	26.4	35	1.33	77	0
2005	26.9	97	33.5	106	20.3	88	0.70	108	0
2004	32.3	55	40.7	46	23.9	53	1.55	68	0
2003	33.4	42	40.8	45	26	41	3.10	13	0
2002	33.1	46	42.5	34	23.8	57	1.32	78	0
2001	35.9	19	44.1	19	27.6	25	1.28	84	0
2000	15.8	122	24	121	7.6	122	0.40	117	0
1999	33.2	45	41.2	44	25.2	46	3.33	10	0
1998	33.8	37	41.8	40	25.8	44	1.86	57	0
1997	30.9	62	35.8	90	26	41	1.89	53	0
1996	29.9	71	37.7	71	22.2	71	1.00	97	0
1995	29.2	78	36.7	81	21.6	74	0.36	119	0
1994	35.5	23	41.9	39	29.1	12	2.06	43	0
1993	32.8	50	39.3	57	25.6	45	1.12	91	1
1992	30.1	69	37.1	75	23.1	66	2.91	16	0
1991	33.8	37	41.5	43	26.1	40	1.79	58	0
1990	28.8	82	36.8	80	20.8	82	3.69	9	0
1989	18.4	120	28	119	8.7	121	0.64	111	0
1988	31.5	59	42	38	20.9	81	1.90	50	0
1987	34.1	34	40.1	54	28.1	19	3.81	8	0
1986	32.2	56	38	69	26.3	36	1.92	48	0
1985	20.7	118	30.1	117	11.3	118	2.39	31	0
1984	35.5	23	44.4	17	26.6	31	4.66	4	0
1983	16.1	121	22.7	122	9.4	120	3.10	13	0
1982	37.3	11	43.8	22	30.9	7	8.62	1	0
1981	26.6	101	33.9	104	19.4	94	0.61	113	0
1980	30.6	65	38.1	68	23.2	62	2.78	20	0
1979	34.9	32	43.4	27	26.5	34	1.18	86	0
1978	30.2	68	37.2	74	23.2	62	2.14	41	0
1977	25.8	108	33.3	107	18.4	101	1.04	94	0
1976	24.1	113	34.9	99	13.3	114	0.16	124	0
1975	32.9	48	39.2	61	26.6	31	2.23	40	0
1974	30.4	66	36.2	86	24.7	49	2.38	32	0
1973	26.8	98	33.9	104	19.7	90	3.88	7	0
1972	25.7	109	31.9	114	19.5	92	2.29	37	0
1971	35.1	27	41.8	40	28.5	14	4.96	3	0
1970	33.3	43	40.7	46	25.9	43	1.67	62	0
1969	27.4	91	33.3	107	21.6	74	1.02	96	0
1968	28.3	85	35.9	89	20.6	85	2.53	28	0
1967	32.6	53	38.9	62	26.2	38	2.32	35	0
1966	29.9	71	37	76	22.8	68	2.82	17	0
1965	38.8	7	47.3	5	30.3	9	2.44	30	0
1964	28.1	86	35.6	94	20.5	86	0.80	103	0
1963	18.6	119	27.3	120	9.9	119	0.29	120	0
1962	27.1	93	35.7	92	18.5	99	0.68	109	0
1961	26.7	100	34.9	99	18.5	99	1.39	75	0
1960	27.1	93	35.6	94	18.6	98	0.77	105	0
1959	35.9	19	42.2	36	29.5	11	1.43	73	0
1958	26.8	98	36.1	87	17.6	103	0.26	121	0
1957	35.9	19	44.9	14	26.8	30	2.62	25	0
1956	32.7	52	40.3	52	25.1	47	1.91	49	0
1955	28.1	86	37.6	72	18.7	97	0.15	125	0
1954	31.8	58	39.5	56	24.1	52	1.05	93	0
1953	32.9	48	42.8	31	22.9	67	1.17	88	0
1952	32.8	50	40.7	46	25	48	1.75	59	0
1951	26	107	36.5	83	15.5	112	1.47	72	0
1950	22.7	115	32	113	13.5	113	0.37	118	0
1949	33.6	41	43.8	22	23.4	59	4.13	6	0
1948	33	47	42.8	31	23.2	62	0.55	115	1
1947	35	30	42.9	30	27.1	28	2.82	17	0
1946	37.6	10	46.6	9	28.5	14	1.90	50	0
1945	24.8	111	32.5	112	17.1	106	1.87	56	0
1944	26.5	103	33.3	107	19.6	91	1.35	76	0
1943	29	79	37.3	73	20.7	83	2.01	46	0
1942	28.7	83	37	76	20.4	87	3.19	11	0
1941	38.4	8	46.3	10	30.5	8	1.60	66	0
1940	36.1	17	43.7	25	28.5	14	1.41	74	0
1939	36.9	12	47.2	7	26.3	36	1.18	86	1
1938	32.2	56	40.5	49	23.9	53	2.30	36	0
1937	29.8	74	35.6	94	23.9	53	1.88	54	0
1936	36.3	16	44.7	15	27.9	22	2.09	42	0
1935	28	88	35.4	98	20.7	83	0.92	99	0
1934	30	70	36.7	81	23.4	59	1.31	80	0
1933	36.9	12	45.9	11	27.8	23	1.63	65	0
1932	29.9	71	38.3	66	21.6	74	4.36	5	0
1931	40.9	2	47.3	5	34.6	1	1.94	47	0
1930	33.8	37	40.1	54	27.5	26	0.62	112	0
1929	32.6	53	40.4	51	24.7	49	0.75	106	0
1928	36	18	43.9	20	28	21	1.50	71	0
1927	29.6	76	39.3	57	20	89	2.95	15	0
1926	31.1	61	38.8	63	23.4	59	0.91	100	0
1925	29.5	77	37.9	70	21	80	2.04	44	0
1924	27.3	92	36.9	78	16.3	111	2.78	20	3
1923	41.4	1	49.7	2	33.1	4	1.90	50	0
1922	34	36	44.2	18	23.7	58	0.51	116	0
1921	35.5	23	44.5	16	26.6	31	1.30	82	0
1920	35	30	43	29	27.1	28	0.90	101	0
1919	26.2	105	34.4	102	18.1	102	0.22	122	0
1918	40.8	3	49.1	3	32.6	5	2.02	45	0
1917	21.6	116	30.6	116	12.5	117	0.68	109	0
1916	27	96	36.9	78	17	107	0.98	98	0
1915	30.8	64	38.4	65	23.2	62	2.57	27	1
1914	24.2	112	31.9	114	16.6	108	1.88	54	0
1913	38.4	8	45	13	31.7	6	1.60	66	0
1912	34.1	34	43.7	25	24.5	51	0.60	114	0
1911	35.1	27	41.7	42	28.5	14	2.60	26	0
1910	27.5	90	36.3	85	18.8	96	0.72	107	0
1909	20.8	117	28.8	118	12.8	115	2.36	33	0
1908							0.80	103	10
1907							1.75	59	4
1906	31.4	60	40.3	52	22.5	69	1.54	70	0
1905							1.29	83	7
1904	28	88	38.5	64	17.6	103	1.67	62	0
1903	23.6	114	34.4	102	12.7	116	1.17	88	0
1902	27.1	93	34.7	101	19.5	92	2.80	19	1
1901	24.9	110	33.2	111	16.5	110	2.27	38	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1923	41.4
1931	40.9
2015	40.8
1918	40.8
2021	40.4
2023	40.3
1965	38.8
1941	38.4
1913	38.4
1946	37.6

Coldest
Year	Mean, °F
2000	15.8
1983	16.1
1989	18.4
1963	18.6
1985	20.7
1909	20.8
1917	21.6
1950	22.7
1903	23.6
1976	24.1

Wettest
Year	Precipitation, in
1982	8.62
2015	5.82
1971	4.96
1984	4.66
1932	4.36
1949	4.13
1973	3.88
1987	3.81
1990	3.69
1999	3.33

Driest
Year	Precipitation, in
1955	0.15
1976	0.16
2017	0.17
1919	0.22
1958	0.26
1963	0.29
1995	0.36
1950	0.37
2000	0.40
1922	0.51

The hottest, coldest and wettest days

Hottest day: 68°F; 28 December 2025
Coldest night: -5°F; 14 December 2025
Wettest day: 0.37 in; 18 December 2025

Every month, season and year

Months

Seasons

Years

Quincy, IL the day's answers

All-time records

Every answer in words

December 2025 brought 0.88 in of precipitation in Quincy, IL, the driest December since 2017, 24th driest of 125.
The hottest day of December 2025 in Quincy, IL: 68°F on Sunday 28 December 2025.
The coldest night of December 2025 in Quincy, IL: a low of -5°F on Sunday 14 December 2025.
The wettest day of December 2025 in Quincy, IL: 0.37 in on Thursday 18 December 2025.