Carbondale, IL: December

31 December 2025: December 2025 averaged 37.5°F in Carbondale, IL, the warmest December since 2024, tied 48th warmest of 110 (with 1996).

December 2025

Mean temperature: 37.5°F; Warmest since 2024; 48th warmest of 110
Precipitation: 0.59 in; Driest since 1955; 2nd driest of 116

A normal December in Carbondale, IL (1991 to 2020): a mean temperature of 37.6°F, between 33.3°F and 40.3°F in eight years of ten and 2.67 in of precipitation, between 1.30 in and 5.63 in in eight years of ten.

The mean temperature of every December in Carbondale, IL since 1899: 37.5°F in 2025; the highest is 47.6°F, in 2021.

Normal range, 33.3 to 40.3°F

Every year, ranked, as a table

Every December in Carbondale, IL from 1898 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	37.5	48	46.7	52	28.3	48	0.59	115	0
2024	39.6	27	47.6	41	31.7	21	2.50	72	2
2023	43.1	9	52.1	12	34.1	10	1.18	102	0
2022	36	59	44.5	69	27.6	58	3.37	46	0
2021	47.6	1	58.9	1	36.3	3	3.64	41	0
2020	38	43	47.7	38	28.3	48	1.96	82	0
2019	39.7	24	50.2	19	29.3	39	1.73	89	0
2018	39.7	24	47.9	35	31.4	25	5.18	16	1
2017	34.3	83	44.5	69	24	91	1.82	86	0
2016	34.5	82	43.3	87	25.6	78	0.91	108	0
2015	46.4	2	55.3	3	37.6	1	6.37	9	0
2014	38.6	37	44.5	69	32.6	19	2.69	61	0
2013	33.4	92	42.3	94	24.5	88			0
2012	41.8	12	50.8	14	32.8	17	2.53	70	0
2011	40.3	21	48.9	26	31.7	21	4.49	27	0
2010	30.4	105	38.1	111	22.6	102	1.67	92	0
2009	35.5	66	43.3	87	27.6	58	4.75	19	0
2008	35	78	45	65	25	81	2.45	75	0
2007	38.5	38	46.4	54	30.6	32	7.05	5	0
2006	40.6	18	49.9	20	31.3	26	3.08	50	0
2005	33.3	93	41.8	98	24.9	84	0.61	114	0
2004	34.3	83	44.6	68	24	91	1.36	100	0
2003	39.6	27	47.6	41	31.6	24	1.77	88	0
2002	35.5	66	43.8	79	27.1	66	6.13	10	0
2001	39.7	24	47.6	41	31.7	21	5.50	14	0
2000	23	110	31.1	115	15	112	2.49	74	0
1999	38.1	42	47.7	38	28.5	46	4.92	17	2
1998	37.6	47	46.3	56	29	42	2.67	62	0
1997	36.2	58	43.1	90	29	42	2.88	57	1
1996	37.5	48	46.8	51	28.2	52	2.75	59	0
1995	33	94	43	92	23.1	100	3.30	48	0
1994	39.2	30	48.4	29	30.2	34	2.58	66	1
1993	35.7	62	43.1	90	28.9	44	2.39	76	1
1992	35	78	43.5	85	26.3	74	1.06	103	1
1991	38.3	40	47.5	45	29.2	40	3.64	41	0
1990	36.5	55	48.2	32	24.5	88	7.90	2	2
1989			35.1	114			1.43	97	5
1988	35.1	75	48.1	33	21.9	106	3.27	49	2
1987	38.7	35	47.3	46	29.7	36	7.30	3	2
1986	35.1	75	44.2	75	25.9	76	2.86	58	1
1982	42.4	10	50.3	18	34.5	7	12.23	1	0
1981	31.6	101	42	97	21.2	108	3.03	52	0
1980	35.6	65	46	57	25.2	80	0.76	110	0
1979	35.5	66	45.9	59	25	81	2.54	69	0
1978	35.4	70	44.9	66	25.8	77	4.47	28	0
1977	32.2	97	41.1	104	23.3	99	3.91	36	0
1976	29.5	107	42.3	94	16.7	110	0.63	113	0
1975	36.4	56	44.9	66	27.8	55	4.55	26	1
1974	36	59	44.4	72	27.6	58	2.52	71	0
1973	35.1	75	43.7	80	26.5	72	3.77	40	0
1972	32.4	96	40.3	106	24.8	85	4.16	33	1
1971							3.83	38	23
1970	40.7	17	50.4	16	31	30	1.92	84	0
1969	33.8	88	41.1	104	26.5	72	3.43	45	0
1968	35.4	70	44.1	76	26.8	70	4.60	24	0
1967	38.2	41	46.9	49	29.4	38	7.05	5	0
1966	37.2	51	45.4	62	29.1	41	4.63	22	0
1965	43.5	7	52.7	8	34.3	9	1.40	98	0
1964	36.3	57	45.5	60	27.5	61	2.57	67	1
1963	26.7	109	36.5	113	16.8	109	1.52	95	0
1962			43.9	77			2.90	56	11
1961	35.7	62	43.9	77	27.5	61	4.30	30	0
1960	32.2	97	41.5	101	23	101	3.78	39	0
1959	41.2	14	49.6	23	32.7	18	4.44	29	0
1958	32.2	97	42.1	96	22.4	103	0.74	112	0
1957	43.3	8	52.5	9	34.1	10	5.63	12	0
1956			53.1	6	34.4	8	3.01	53	4
1955	33.8	88	43.7	80	24	91	0.27	116	0
1954	38	43	46.4	54	29.5	37	6.68	8	0
1953	37.1	52	48.4	29	25	81	0.98	107	2
1952	38.9	33	46.6	53	31.1	29	2.34	77	0
1951	37.8	46	47.1	48	28.5	46	3.62	43	0
1950	31.7	100	41.3	102	22.1	105	1.56	93	0
1949	41.7	13	52.3	10	31	30	5.92	11	1
1948	40.6	18	48.9	26	32.2	20	2.56	68	0
1947			48.1	33			5.31	15	4
1946			53	7	33.5	13	2.72	60	6
1945	30.4	105	39.1	108	21.6	107	1.30	101	0
1944	31.2	104	38.4	109	24	91	2.61	64	2
1943	33.9	86	41.6	99	26.2	75	1.68	91	0
1942	34.7	81	41.6	99	27.8	55	1.40	98	0
1941	41.2	14	48.4	29	34	12	3.46	44	0
1940	43.9	6	52.2	11	35.6	5	2.92	55	0
1939	39	31	49.9	20	28	54	2.14	80	0
1938	37.3	50	47.9	35	26.7	71	1.69	90	0
1937	34.2	85	41.3	102	27.2	65	2.93	54	0
1936	40.6	18	50.7	15	30.5	33	3.05	51	0
1935	31.6	101	39.5	107	23.6	97	1.03	105	0
1934	36	59	43.6	82	28.3	48	1.78	87	0
1933	42.4	10	51.9	13	32.9	14	1.95	83	0
1932	35.7	62	44.3	73	27	68	7.07	4	0
1931	45.9	4	54.7	4	37	2	4.75	19	0
1930	36.8	54	45.3	63	28.3	48	1.05	104	0
1929	38.9	33	47.8	37	30	35	5.57	13	0
1928	39	31	49.2	25	28.8	45	2.62	63	0
1927	35	78	45.5	60	24.6	86	4.70	21	0
1926	35.3	74	43.6	82	27	68	2.59	65	0
1925	35.4	70	45.3	63	25.5	79	1.01	106	0
1924	33.9	86	44.3	73	23.5	98	4.10	34	0
1923	46.3	3	56.8	2	35.8	4	4.60	24	0
1922	38.7	35	49.7	22	27.7	57	3.86	37	0
1921	40.8	16	50.4	16	31.2	28	3.36	47	0
1920	39.3	29	47.2	47	31.3	26	4.30	30	0
1919	33.6	91	43.4	86	23.8	96	0.90	109	0
1918	44.8	5	53.9	5	35.6	5	4.63	22	1
1917	26.9	108	37.7	112	16.1	111	1.54	94	0
1916	35.5	66	46.9	49	24.1	90	4.25	32	0
1915	37.1	52	46	57	28.1	53	6.88	7	0
1914	31.4	103	38.2	110	24.6	86	4.03	35	0
1913	40.3	21	47.6	41	32.9	14	2.05	81	0
1912	37.9	45	48.7	28	27.1	66	0.75	111	0
1911	40.3	21	47.7	38	32.9	14	2.50	72	1
1910	32.7	95	43.2	89	22.2	104	2.24	78	0
1902	35.4	70	42.9	93	27.3	64	4.79	18	2
1901									14
1900	38.5	38	49.5	24	27.5	61	1.87	85	0
1899	33.8	88	43.6	82	24	91	2.15	79	0
1898							1.52	95	31

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2021	47.6
2015	46.4
1923	46.3
1931	45.9
1918	44.8
1940	43.9
1965	43.5
1957	43.3
2023	43.1
1982	42.4
More years share the last value

Coldest
Year	Mean, °F
2000	23
1963	26.7
1917	26.9
1976	29.5
2010	30.4
1945	30.4
1944	31.2
1914	31.4
1981	31.6
1935	31.6

Wettest
Year	Precipitation, in
1982	12.23
1990	7.90
1987	7.30
1932	7.07
2007	7.05
1967	7.05
1915	6.88
1954	6.68
2015	6.37
2002	6.13

Driest
Year	Precipitation, in
1955	0.27
2025	0.59
2005	0.61
1976	0.63
1958	0.74
1912	0.75
1980	0.76
1919	0.90
2016	0.91
1953	0.98

The hottest, coldest and wettest days

Hottest day: 73°F; 26 December 2025
Coldest night: 8°F; 14 December 2025
Wettest day: 0.26 in; 28 December 2025

Every month, season and year

Months

Seasons

Years

Carbondale, IL the day's answers

All-time records

Every answer in words

December 2025 brought 0.59 in of precipitation in Carbondale, IL, the driest December since 1955 (1983 excluded: 31 of 31 days missing; 1984 excluded: 31 of 31 days missing; 1985 excluded: 31 of 31 days missing; 1 more year excluded for missing days), 2nd driest of 116.
The hottest day of December 2025 in Carbondale, IL: 73°F on Friday 26 December 2025.
The coldest night of December 2025 in Carbondale, IL: a low of 8°F on Sunday 14 December 2025.
The wettest day of December 2025 in Carbondale, IL: 0.26 in on Sunday 28 December 2025.