Carbondale, IL: May

31 May 2026: May 2026 averaged 66°F in Carbondale, IL, the coldest May since 2025, tied 53rd coldest of 115 (with 1928).

May 2026

Mean temperature: 66°F; Coldest since 2025; 53rd coldest of 115
Precipitation: 2.37 in; Driest since 2012; 24th driest of 118

A normal May in Carbondale, IL (1991 to 2020): a mean temperature of 65.7°F, between 63.2°F and 69.7°F in eight years of ten and 4.35 in of precipitation, between 2.44 in and 7.65 in in eight years of ten.

The mean temperature of every May in Carbondale, IL since 1899: 66°F in 2026; the lowest is 60.1°F, in 1981.

Normal range, 63.2 to 69.7°F

Every year, ranked, as a table

Every May in Carbondale, IL from 1899 to 2026, 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
2026	66	62	75.7	82	56.2	40	2.37	95	0
2025	65.5	69	74.2	96	56.8	28	4.87	46	0
2024	70.5	10	80.2	31	60.7	4	5.57	33	0
2023	67.6	38	78.8	45	56.4	35	2.58	91	0
2022	68.3	28	78.5	48	58	15	5.08	41	0
2021	63.9	83	74.4	94	53.4	80	3.58	69	0
2020	63.9	83	73.8	102	54.1	65	4.36	51	0
2019	67.3	41	76.7	70	57.9	16	6.63	26	0
2018	73	2	83.9	6	62.1	1	5.14	40	0
2017	65.9	64	76.4	74	55.3	48	3.33	74	0
2016	64	82	74.4	94	53.6	76	6.54	27	0
2015	67.2	45	77.4	63	57.1	24	3.88	61	0
2014	67.1	51	77.5	58	56.7	30	4.35	52	0
2013	65.6	67	76.5	72	54.7	59	4.09	55	0
2012	70.8	8	84	4	57.6	19	1.33	114	0
2011	65.4	71	74.9	90	55.8	43	6.99	22	0
2010	68.8	24	78.5	48	59.1	10	3.79	64	0
2009	66.4	57	76.6	71	56.3	37	4.90	45	3
2008	63.4	97	73.9	99	52.8	84	6.25	30	0
2007	69.5	16	80.7	28	58.2	14	2.71	88	0
2006	65	73	75.7	82	54.2	63	3.49	71	0
2005	63.9	83	76.8	69	51	102	1.88	103	0
2004	70.4	11	79.8	33	61.1	3	8.59	9	2
2003	64.5	76	74	98	54.9	54	3.92	60	0
2002	63.5	91	74.5	92	52.5	85	7.53	15	0
2001	66.5	56	78	55	55	53	6.38	28	0
2000	68	32	78.2	53	57.7	17	4.83	47	1
1999	65.7	66	77.1	66	54.4	61	3.34	73	0
1998	69.3	17	79.6	35	59.1	10	4.33	53	0
1997	60.9	109	72.8	114	49	107	7.37	17	1
1996	68.1	30	77.9	56	58.3	13	9.02	6	1
1995	63.5	91	73.4	105	53.5	78	8.13	11	0
1994	60.9	109	73.5	103	48.1	114	1.05	116	1
1993	64.3	78	74.6	91	54	67	3.96	59	0
1992	62.5	103	73.9	99	51.1	101	2.58	91	0
1990	62.7	102	72.2	115	53	83	10.88	3	1
1989	60.8	112	73.5	103	48	115	2.70	89	1
1988	64.3	78	80	32	48.8	111	3.14	82	1
1987	70.6	9	83.8	8	57.4	21	1.32	115	1
1983	62.8	101	73.2	108	52.3	88	6.78	25	2
1982	68.9	23	81.8	14	56	41	5.34	35	0
1981	60.1	115	71.3	117	49	107	10.94	2	0
1980	64.3	78	77.4	63	51.3	99	3.26	78	0
1979	62.4	104	73.4	105	51.4	97	3.32	75	0
1978	63.7	89	75.1	88	52.4	87	1.75	106	1
1977	69.6	14	82.7	10	56.6	33	1.55	110	0
1976	60.3	114	73	111	47.6	116	3.67	67	0
1975	67.4	40	79.4	39	55.5	46	4.53	49	0
1974	65.8	65	76.9	68	54.8	56	6.05	31	0
1973	62.2	105	72.9	113	51.5	94	7.05	21	0
1972	66.6	55	79.6	35	53.7	73	1.75	106	0
1971	63.3	98	75.5	86	51	102	5.72	32	0
1970	69.2	19	81.2	21	57.1	24	4.05	57	0
1969	66.8	52	79	44	54.6	60	3.70	66	0
1968	64.7	74	76.2	77	53.1	82	4.79	48	1
1967	64.4	77	76.4	74	52.5	85	3.21	81	1
1966	64.6	75	77.5	58	51.6	92	4.99	43	0
1965	71.5	5	84.2	3	58.8	12	2.29	96	0
1964	69.3	17	81.8	14	56.7	30	2.19	98	0
1963	65.5	69	77.5	58	53.5	78	2.38	94	0
1962	74.5	1	87.3	1	61.8	2	3.45	72	0
1961	61.8	106	74.1	97	49.4	106	10.16	5	0
1960	63.5	91	76.3	76	50.8	104	5.47	34	0
1959	70.4	11	81.3	19	59.5	6	5.27	36	0
1958	66.1	59	78.5	48	53.7	73	3.88	61	0
1957	67.2	45	77.8	57	56.6	33	12.59	1	0
1956			79.8	33			4.02	58	4
1955	67.3	41	79.5	37	55.2	52	5.20	38	0
1954	60.9	109	73.4	105	48.3	112	3.87	63	0
1953			79.4	39			4.29	54	6
1952	66.1	59	78.5	48	53.7	73	3.13	83	1
1951	66.8	52	81.8	14	51.7	91	1.00	118	0
1950	67.7	36	78.5	48	56.8	28	5.18	39	0
1949	67.9	34	81	25	54.8	56	2.44	93	1
1948	63.8	86	75.9	79	51.6	92	7.15	19	0
1947	65.6	67	77.1	66	53.8	72	3.75	65	2
1946	63.5	91	73	111	54.1	65	6.91	24	2
1945	61.6	107	71.7	116	51.5	94	3.22	80	0
1944	71	7	81.8	14	60.1	5	2.84	86	0
1943	66.8	52	75.9	79	57.7	17	8.68	8	0
1942	65.4	71	76	78	54.8	56	5.21	37	0
1941	69.8	13	81.9	13	57.6	19	2.00	101	0
1940	63.1	99	76.5	72	49.7	105	3.53	70	0
1939	68.5	26	81.1	22	56	41	1.94	102	0
1938	67.7	36	79.2	43	56.3	37	4.06	56	0
1937	67.2	45	78.8	45	55.5	46	4.44	50	0
1936	69.6	14	84	4	55.3	48	1.58	109	0
1935	63.5	91	73.1	110	53.9	69	7.07	20	0
1934	67.9	34	81.6	18	54.3	62	2.62	90	0
1933	68.2	29	77.2	65	59.2	9	10.29	4	0
1932	67.3	41	81.1	22	53.6	76	1.02	117	0
1931	63.1	99	75	89	51.3	99	6.28	29	0
1930	67.2	45	79.5	37	55.3	48	1.48	112	2
1929	63.8	86	75.6	85	52	90	7.19	18	0
1928	66	62	78.8	45	53.3	81	3.11	84	0
1927	66.1	59	75.8	81	56.4	35	8.09	12	0
1926	69.1	21	82.7	10	55.6	45	1.83	104	0
1925	63.5	91	78.1	54	49	107	1.80	105	0
1924	61.4	108	73.9	99	49	107	4.99	43	0
1923	63.8	86	75.5	86	52.2	89	7.41	16	0
1922	68.6	25	80.9	27	56.3	37	3.25	79	0
1921	67.5	39	80.7	28	54.2	63	2.24	97	0
1920	66.2	58	77.5	58	54.9	54	8.89	7	0
1919	64.3	78	74.5	92	54	67	7.73	14	0
1918	71.4	6	83.3	9	59.4	7	7.93	13	0
1917	60.7	113	73.2	108	48.2	113	6.98	23	0
1916	69.2	19	81.3	19	57.2	22	3.60	68	0
1915	67.3	41	79.3	42	55.3	48	8.19	10	0
1914	68	32	82.2	12	53.9	69	1.52	111	0
1913	67.2	45	80.5	30	53.9	69	2.10	99	0
1912	69.1	21	81	25	57.2	22	3.04	85	0
1911	71.8	3	86.8	2	56.7	30	1.47	113	0
1910	63.6	90	75.7	82	51.5	94	2.81	87	0
1903	68.1	30	79.4	39	56.9	27	1.67	108	0
1902	71.8	3	83.9	6	59.4	7	5.01	42	3
1901					51.4	97	2.03	100	4
1900	68.4	27	81.1	22	55.7	44	3.27	77	1
1899	67.2	45	77.5	58	57	26	3.30	76	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1962	74.5
2018	73
1911	71.8
1902	71.8
1965	71.5
1918	71.4
1944	71
2012	70.8
1987	70.6
2024	70.5

Coldest
Year	Mean, °F
1981	60.1
1976	60.3
1917	60.7
1989	60.8
1997	60.9
1994	60.9
1954	60.9
1924	61.4
1945	61.6
1961	61.8

Wettest
Year	Precipitation, in
1957	12.59
1981	10.94
1990	10.88
1933	10.29
1961	10.16
1996	9.02
1920	8.89
1943	8.68
2004	8.59
1915	8.19

Driest
Year	Precipitation, in
1951	1.00
1932	1.02
1994	1.05
1987	1.32
2012	1.33
1911	1.47
1930	1.48
1914	1.52
1977	1.55
1936	1.58

The hottest, coldest and wettest days

Hottest day: 88°F; 17 May 2026
Coldest night: 37°F; 3 May 2026
Wettest day: 0.76 in; 5 May 2026

Every month, season and year

Months

Seasons

Years

Carbondale, IL the day's answers

All-time records

Every answer in words

May 2026 brought 2.37 in of precipitation in Carbondale, IL, the driest May since 2012, 24th driest of 118.
The hottest day of May 2026 in Carbondale, IL: 88°F on Sunday 17 May 2026.
The coldest night of May 2026 in Carbondale, IL: a low of 37°F on Sunday 3 May 2026.
The wettest day of May 2026 in Carbondale, IL: 0.76 in on Tuesday 5 May 2026.