CHARLESTON, IL

Average of Average Temperature (Degrees Fahrenheit)

(111436)

File last updated on April 19, 2024
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.

YEAR(S)	JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC		ANN
1896	30.81		33.52	d	35.86	c	60.88		70.58		72.55		75.73		74.65		65.50	d	51.07	b	44.84	k	36.50	b	55.24	a
1897	25.31	g	31.27	h	42.28	d	51.11	c	58.40		71.82		77.37		72.74		71.55		62.29		42.23	b	29.94		57.97	b
1898	32.73		32.75		44.95		50.30		63.77		74.92		77.40		75.66		71.03		53.44		38.95		28.73		53.72
1899	27.69		20.61		35.71		54.97		64.88	b	75.08		76.61		77.89		66.63		61.06		47.62		30.73		53.29
1900	32.26	b	24.37	b	36.71		54.12	b	66.86	b	71.82		-----	z	79.45		70.90		62.43	c	43.14	i	33.14	b	53.21	b
1901	30.10	j	25.26	c	42.43	b	-----	z	62.32		-----	z	-----	z	-----	z	-----	z	-----	z	38.05		24.93	i	42.02	h
1902	28.94		19.88	c	45.32	c	48.94	d	68.98		71.91	a	77.23		72.21		64.90		58.81		51.42		31.30	k	55.32	a
1903	28.15		29.16		47.14	b	52.47	a	67.85		67.63		76.63		73.19	b	66.58		56.11		39.87		26.28	b	52.59
1904	22.88	c	25.75	a	41.34		48.18		63.68		71.10		74.23		72.79		68.77		55.47		43.25		31.29		51.56
1905	23.27	e	22.52	b	47.39		53.43		65.52		74.48	a	74.65		76.15		69.63		55.40		43.17		32.66		53.19
1906	34.72	d	29.06	a	31.33	b	57.12		64.98		70.63		73.58		76.50		70.90		54.65		40.90	a	34.17	a	53.21
1907	34.24		31.24	a	49.76		43.87		57.73		68.25		76.23		72.81		65.67	a	53.32		39.35		33.83	a	52.19
1908	31.29		29.79		47.33	b	53.21	a	64.60		71.30		75.73	a	74.76		70.67		55.15		44.67	a	34.50	a	54.42
1909	32.10		35.73		41.21		52.48		60.71		73.22		73.08		76.60		64.83		51.39		52.22		23.93	a	53.12
1910	29.31		28.30		52.31		53.15		58.32		69.60		75.11		71.97	a	67.17		57.74		38.67		27.47		52.43
1911	32.61		36.43		42.42		51.10		69.12	a	76.23		76.73		73.95		70.52		54.87		37.75		36.27		54.83
1912	16.94		24.10		32.40		55.43		65.55		68.33	a	75.77		72.60		67.83		56.80	c	42.69	a	35.60	a	51.17
1913	33.85	e	27.72	a	40.05	a	52.70		66.08	a	76.12	a	79.87		-----	z	-----	z	51.73	g	48.64	a	38.29	b	51.48	c
1914	35.60		23.27		39.19		53.17	a	66.32		78.83		80.50		76.89		66.97		58.02		45.30		25.30	c	54.11
1915	25.15		38.21		36.48		58.21	a	60.93	a	68.93		71.90	g	67.52		69.30		58.00	c	46.40		30.98	a	50.92	a
1916	33.12	a	29.43		40.24		50.83		65.68		68.25		80.71		78.03		65.58		55.26		45.88		29.74		53.56
1917	31.53		27.39		43.94		51.85		56.62	e	69.45		75.39		71.44		65.40		47.48		43.45		22.65		50.55
1918	13.44		32.68		45.84	c	47.58	d	69.73	c	73.63		73.71		79.32		59.75		58.53		42.92		40.10	e	53.10
1919	33.29		33.18	c	44.19		54.52		60.69		76.02		79.24		73.90		70.95		60.32		41.73		26.28	a	54.53
1920	23.21		31.55		43.08		47.80		62.18		72.02		75.11		73.40		69.88		60.57	a	41.58		33.39		52.81
1921	34.85		37.96		51.98		55.82	b	65.06		77.00		80.68		74.13		72.42		56.24		44.37		35.87		57.20
1922	26.13		34.02		44.63		55.42		66.56		74.28		75.40		75.37		71.65		59.44		45.33	a	33.73		55.16
1923	35.19		27.57		40.60		51.48	a	61.29		72.62		76.82	a	74.60		67.13		51.84		44.62		42.24		53.83
1924	22.76		31.05		37.03		55.52	a	56.69		71.33		72.60		74.95		62.47		61.17	b	44.05		27.40		51.42
1925	27.85		38.48		44.74		59.72		60.53		76.00		76.06		74.27		74.83		47.21		40.82		29.77		54.19
1926	30.32		35.46		28.62	n	46.80		65.95		68.23		78.31		77.02		69.67		55.61		38.90		29.97		54.20	a
1927	26.48	d	40.04	a	45.37		54.05	a	62.52		68.05		75.05		69.26		72.40		60.35		47.35		30.34		54.27
1928	30.32		34.34		42.32		48.93	a	63.33	a	66.57		77.24		76.90		66.96	f	57.76		44.42		35.39		52.50	a
1929	25.03		26.34		49.43	a	56.88		61.08		70.80		78.02	c	73.05	b	67.17	a	55.15		38.77		31.19		52.74
1930	23.56		41.95		40.79		57.20		65.13		72.18		80.40		77.00		70.68		54.48	d	44.66	a	32.60		55.05
1931	34.18		38.95		37.90		54.82		60.71		75.93		80.39		75.37		73.40		60.56		52.33	a	41.24		57.15
1932	37.89		41.03		36.03		54.43	a	64.68		75.10		78.97		76.15	a	68.55		56.73		37.73		32.68		55.00
1933	39.76		31.82		42.47		53.72		66.39		79.00		79.89		74.53		75.35		56.08		42.62		37.40		56.59
1934	35.05		27.00		39.13		54.02		68.27		80.75		82.50		75.71		66.85		59.68		47.43		29.90		55.52
1935	31.53	a	35.38		49.18		50.57		59.02		68.93		79.53		76.50		67.53		56.87		42.37		26.16		53.63
1936	22.18		22.34		46.07	a	49.43		67.06		73.98		84.66		81.18		71.22		55.65		39.82		35.55		54.09
1937	30.95		30.70		38.52	a	52.20		64.24		71.70		74.69		76.84		65.58		53.13		39.43		29.24		52.27
1938	29.15		40.07		49.29		55.00		63.02		71.28		76.89		76.81		70.12	a	59.71		45.05		33.23		55.80
1939	35.38	a	31.75		44.06		49.98		66.74		74.27		76.63		73.24		72.80		58.61		42.58		36.44		55.21
1940	16.26		32.07		40.00		51.77		60.55		73.80		77.24		76.71		66.07		60.37		41.15		37.32		52.78
1941	32.13		29.07		37.35		57.57	a	67.76		74.63		77.11		76.29		70.40		59.94		44.87		38.52		55.47
1942	30.06		29.71		46.29		58.23		63.50		73.38		76.63		73.58		66.77		58.16		46.43		28.48		54.27
1943	30.37		36.50		38.29		51.98		63.15		76.23		78.13		78.55		65.18		56.05		40.24	a	29.79		53.71
1944	34.37		35.09		38.90		51.76	a	68.69		-----	z	-----	z	-----	z	-----	z	-----	z	39.18	m	26.29	b	42.52	f
1945	25.42	a	32.85	a	51.92		54.25		58.08		67.36	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	48.31	f
1946	26.09	t	36.27		54.60		56.42		60.55		73.05		76.19		70.27		67.60		60.82		46.38		37.00		58.10	a
1947	33.73		25.52		35.16		52.83	a	60.26		69.35		72.19		82.23		68.60		63.42		38.37		34.42		53.01
1948	24.05		32.66		42.76		57.43		62.16		72.84	a	75.74	b	75.03		69.28		53.72	a	46.17		36.16	b	54.00
1949	32.72	a	35.75		42.52		52.98	b	66.62	b	75.31	f	80.17	b	74.50	e	62.95		59.75	a	45.33		37.86	b	53.74	a
1950	40.13	d	33.37	b	40.06		48.31	a	66.78	d	72.62	d	73.30	c	71.76	d	67.32	m	61.05		41.10	e	23.05		51.96	a
1951	31.23		33.16		38.26	f	51.31	d	-----	z	70.65	f	75.89	c	74.42	f	64.46	d	58.74	b	36.80	b	31.24		47.85	d
1952	33.71		37.74		40.73		53.20		63.80	c	78.30		78.46	e	73.83	d	67.89	u	50.23	e	42.86	b	35.05		53.45	a
1953	34.23		37.46		43.42		49.96	e	63.79	c	77.57	c	78.82	l	75.43	c	69.85	d	60.42		44.98		33.85		53.72	a
1954	31.34		38.41	a	37.71		57.36	b	57.91	c	76.73		80.61		75.71		72.00		57.08		42.68		32.34		54.99
1955	28.12	a	30.80		40.31		58.62		64.77		67.27		79.74		77.26		69.88	d	56.07	b	37.97		27.81		53.22
1956	26.53		32.09		40.52		50.67		64.85		73.29	a	74.10		74.02		66.17		61.40		41.31	a	37.68		53.55
1957	24.05		37.20		41.25	a	54.28		62.52	a	72.37		76.19		74.19		65.03		51.35		41.00		37.18	a	53.05
1958	28.22	b	24.73		36.07	a	52.53		62.21		67.32		73.31		73.58		66.69	a	55.74	b	45.43		26.06		50.99
1959	24.05		31.98		41.66		52.81	a	66.65		74.24	e	75.58	f	77.05		68.34	a	54.53		35.92		36.61		51.26	a
1960	29.57	a	27.74		24.07	a	56.52	b	60.81		71.72		74.89		76.85		73.13		58.13		44.30		27.23		52.08
1961	26.71		36.57	a	45.29		49.03		59.55		71.15		76.13		73.97		71.48		58.18		43.98	b	30.58		53.55
1962	22.90		34.29		38.61		52.60		71.69		73.68		75.05		75.00		66.33		60.11		43.97		28.35		53.55
1963	20.21		24.84		46.90		57.98		62.98		74.64	a	75.37		72.61		68.87		66.03		47.22		20.63		53.19
1964	33.06		31.81		41.58		56.08		68.35		75.63		76.98		75.21		68.98		54.79	b	48.38	a	31.84		55.23
1965	30.31		32.09		34.08		56.50		69.95		72.42		74.84		73.84		69.07		56.45		47.88		39.97	a	54.78
1966	24.24		31.88		44.29		51.45		60.43	a	73.37		80.97	a	73.77		66.10		54.18		45.25		33.18		53.26
1967	32.94		29.52	a	45.27		57.30		60.15		74.03		74.00		70.44		65.43		55.18		40.37		34.10		53.23
1968	26.29		27.91		45.21		54.77		61.22	a	74.87		76.48		76.13		68.70		55.95	a	43.25		31.48		53.52
1969	26.26		33.45		37.05		55.82		65.48		71.43	a	78.15		74.05		66.62		56.15	a	40.08		29.62	a	52.85
1970	20.84		30.05		39.39		56.10	a	67.63		71.67	a	76.45		75.03		74.05	s	55.43	c	41.73		35.56		51.81	a
1971	24.52		30.41		39.23	a	53.45		62.34	f	76.68		72.85		72.92		69.92		62.22	b	44.38		39.41	h	54.66	b
1972	27.82		31.36	a	42.34		53.42		66.50		70.33		75.05		74.42		69.30		52.66		40.00		30.94		52.84
1973	31.61		34.04		50.52		52.70		61.83	g	73.43		77.06		75.61		70.75		61.92		46.29	b	29.36	f	57.39	b
1974	30.38	a	35.30		46.76		56.78		63.55		68.78		77.70	a	73.00	a	60.91	b	55.26		43.07		34.18		53.81
1975	32.42		30.69	a	38.45	a	51.78		66.35		73.98	a	73.84		75.39		63.62		58.42	a	47.55	a	32.95	a	53.79
1976	24.91	b	40.48		47.35		55.87		59.87		71.20		76.06		71.58		65.48		50.06		35.73		26.85		52.12
1977	12.98	a	29.86		47.60	a	59.10		70.13		70.80		78.47		73.84		69.53	a	53.48	a	43.60		28.39		53.15
1978	17.66		19.12		35.15		54.87		61.35		72.79	a	75.69		73.21		71.09	a	54.42		47.28	a	33.26		51.32
1979	16.19		20.20		42.48	a	51.58		62.12	b	72.73		73.81		73.61		67.87		56.23	a	42.33		36.68		51.32
1980	28.42		23.98	b	37.66		51.75		64.44		71.68		80.19		78.15		69.29	a	52.77		42.09	a	33.29		52.81
1981	25.79		33.26	a	41.73		58.98		58.87		74.32		75.81		72.50		65.37		55.10		45.53		29.00	e	53.02
1982	19.29	c	26.12		41.90	a	48.60	a	68.79		67.34	a	75.87		71.40	b	66.03		56.63		45.03		40.66	b	52.31
1983	30.24		36.36		42.35		49.00		60.19		72.38		78.92		79.45		69.03		57.95	a	46.57		20.12	a	53.55
1984	23.42	a	38.09		34.32		51.37		61.32		76.30		74.39		75.68		65.02	b	61.05	a	42.71	a	39.75	a	53.62
1985	20.23	a	27.39	a	46.40	b	59.48	a	65.89		70.17	a	74.82	a	71.58		67.97		59.37	a	45.78		23.48		52.71
1986	31.52		31.92	b	46.43	a	58.05	a	66.03		74.60		78.34		70.69		71.82	b	56.65		39.97	a	32.95		54.91
1987	27.03	a	36.95		46.40	b	54.53		70.21		75.43		76.70	a	76.05	a	69.21	a	50.84		48.36	b	34.90	a	55.55
1988	26.23		27.67		42.58	a	54.02		66.02		74.13		78.44		78.73		70.16	b	50.37		44.83		32.50		53.81
1989	37.48		26.89	f	44.00	c	52.95		60.59	c	71.68		75.27	a	73.40		64.25		58.47	a	42.80		19.07	b	54.54	a
1990	38.78	a	38.41	a	47.40	a	52.55	a	60.37		72.38		74.39		71.53	a	68.57		54.29		48.48		32.58	a	54.98
1991	25.19		35.63	a	45.86	c	57.88	a	69.66		74.80		76.53		75.35		68.32		58.87	a	40.38	a	35.32	c	55.32
1992	33.55	b	39.39	b	45.08	a	52.62	d	63.10		70.45	a	75.00		69.88	a	65.97		54.95	a	44.72	c	33.32	a	54.00
1993	29.63		30.78	e	38.98		51.23		64.82		72.95		78.32	a	76.30	a	63.90	a	53.40		41.68		33.10		52.92
1994	22.63		29.64		42.73		54.76	a	61.13		75.95	a	74.93	a	71.87		67.21	b	57.67	a	48.52		38.82		53.82
1995	29.75	a	30.96		45.73		54.64	b	62.26		73.23		78.08		79.92		65.43		58.27	a	37.60		28.94		53.73
1996	25.90	a	32.41	a	36.29		50.43	a	64.48		73.41	a	74.37		74.95	b	65.30		56.77	a	37.07	a	34.00		52.12
1997	24.10	a	35.80		45.41	b	49.65		58.35	a	71.45		76.45	a	72.23	a	68.24	a	56.32		39.67		33.18		52.57
1998	34.72	a	41.70		42.38	b	54.82		68.55	a	73.34	a	75.92		76.21		72.88		57.92		46.70		35.82	a	56.75
1999	29.48	c	37.93		39.39		55.88		64.82	a	73.21	b	80.05		72.82		67.05		56.26		49.72		34.28	b	55.07
2000	29.37	a	40.05	a	47.10	b	54.25	b	65.73		71.72		73.55		75.33	a	66.68		58.98		40.91	a	19.38	b	53.59
2001	26.68	c	34.00	c	38.48		60.80		65.95		70.83		76.61		75.19		66.10		55.42		49.98		36.82		54.74
2002	34.90	b	35.33	a	40.00		55.57	a	61.42		75.17		79.40	b	76.63		71.32		54.11		41.02	b	33.77	a	54.89
2003	23.58		27.39	a	45.43	b	56.30		62.61		68.95	a	75.84		75.48		65.03		56.18	a	47.52		34.65		53.25
2004	26.52	a	32.55		46.03		55.78	a	68.47		71.53		73.62	b	69.73		68.70		56.41	b	47.50	a	33.31		54.18
2005	30.88	c	36.98	a	39.95	a	56.28		62.21		75.13		77.21	b	77.14	b	72.66	a	56.47		46.15		28.35	a	54.95
2006	40.20	a	33.50		43.45		58.88		63.15		72.45		78.06		75.44		65.52	a	53.12	a	45.32		37.82		55.58
2007	31.85	a	22.25		51.63		51.79	a	69.34		74.32		73.35	a	80.16		70.97		62.10	a	44.17	a	33.48	b	55.45
2008	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	73.61	v	69.50	n	58.39	m	41.46	c	31.82	f	41.46	k
2009	23.50		34.22	c	51.19	r	55.41	c	64.40		74.81	c	72.40	b	72.78	a	67.34	a	51.90	a	48.92		32.27	a	54.36	a
2010	23.12	c	27.83	a	45.14	b	61.55	b	66.05	b	76.37	c	78.93	b	78.89		70.27		58.81	b	45.53	a	26.74		54.94
2011	25.26		34.43		44.80	a	58.90	e	64.34	b	75.38	a	81.58	e	77.26		66.40		57.28	a	48.53	a	38.07	a	56.02
2012	33.68		37.90		59.11	d	57.70		71.74	b	74.07	a	84.42		75.88	a	66.79	a	55.00		43.43	a	39.85	a	58.30
2013	32.26	b	33.71	b	37.24		55.20	b	67.31		73.12		73.93	a	74.25	a	71.72		57.07	a	43.02	e	30.95	c	54.15
2014	24.65	g	24.46	a	38.88	b	57.90	a	65.93	c	77.87	d	73.98	d	75.44		66.87		56.36	f	38.32	b	33.67	d	55.33	b
2015	27.69	b	22.09	a	40.44	d	55.81	a	67.81	b	74.02		75.81		74.22	a	69.79	b	57.57	b	49.76	a	43.84		54.90
2016	29.60	a	36.06	b	51.85	a	55.67	a	64.09	b	76.81	c	77.29	e	77.94	e	72.91	b	62.33	e	49.86	b	30.87	a	57.11
2017	33.90	e	46.16	c	46.10	g	61.41	a	65.13	e	73.93	g	78.82	f	73.52	b	71.48	f	63.11	h	44.58	e	30.55	c	50.75	e
2018	24.73	g	36.17	e	38.65	a	45.68	b	73.59	d	76.65	d	76.12	c	76.76	b	73.95	h	57.73	a	38.35	d	38.09	d	55.78	b
2019	27.87		34.23	b	40.00	d	55.98	a	66.53	a	73.59	a	78.67	d	76.92		73.84	b	55.34	c	37.93	c	38.52	c	54.95
2020	34.91	d	35.12	d	44.79	g	51.84	e	62.72	a	74.25		78.37		73.38	a	67.67	a	54.22	a	48.48	a	35.98	a	56.09	a
2021	31.42	a	22.96		47.47	a	54.12	a	61.97	a	72.52		77.24		79.02		72.00		64.37	a	44.19	a	46.13		56.12
2022	24.87	a	32.15	e	47.17	a	53.57	a	67.89	c	74.75		76.83	a	74.43	a	67.90	a	55.08	a	44.30	c	36.28	f	56.27	a
2023	37.27		41.48	d	45.74	b	55.74	i	66.16		72.95		77.24		76.03	b	69.68		58.23		46.31	d	41.58	a	57.52	a
2024	30.40	a	43.95	a	52.12	a	58.32	m	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	42.15	i
Period of Record Statistics
MEAN	28.79		32.16		42.63		53.96		64.25		72.97		76.75		74.90		68.33		56.78		43.62		32.68		53.91
S.D.	5.48		5.49		5.15		3.39		3.51		2.80		2.45		2.53		2.91		3.37		3.65		5.07		1.47
SKEW	-0.44		-0.20		-0.01		-0.18		0.07		-0.09		0.64		0.06		-0.09		-0.12		0.02		-0.31		0.33
MAX	40.20		46.16		59.11		61.55		73.59		80.75		84.66		82.23		75.35		66.03		52.33		46.13		58.30
MIN	12.98		19.13		24.07		43.87		56.62		66.57		72.19		67.52		59.75		47.21		35.73		19.07		50.55
YRS	123		126		123		125		124		122		119		122		117		121		124		121		98