CHARLESTON, IL

Average of Maximum Temperature (Degrees Fahrenheit)

(111436)

File last updated on April 17, 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	36.48		40.00	b	43.41	b	71.33		80.61		82.23		85.13		84.97		75.50	b	63.23	a	53.46	f	43.10	a	64.18	a
1897	32.44	d	38.29	d	49.52	b	58.82	b	68.06		80.60		86.00		83.94		85.03		74.97		50.52	a	35.58		61.98
1898	38.39		39.36		52.81		59.33		72.42		85.03		87.55		85.06		79.87		60.81		47.43		36.00		62.00
1899	35.10		28.54		43.32		63.93		73.50	a	84.97		87.42		88.68		77.60		71.87		55.03		37.94		62.32
1900	39.53	a	33.56	a	45.29		65.28	a	77.67	a	80.10		-----	z	88.26		79.97		74.37	a	51.52	e	39.37	a	61.35	a
1901	39.54	e	33.96		49.07	a	-----	z	72.00		-----	z	-----	z	-----	z	-----	z	-----	z	46.83		32.69	e	45.68	f
1902	35.55		29.00	a	52.86	b	60.14	b	79.00		81.79	a	87.87		81.58		74.70		68.77		57.87		37.20	f	64.47	a
1903	34.19		35.93		56.33	a	62.70		78.32		78.00		87.16		82.86	b	77.83		66.19		47.83		34.43	a	61.82
1904	30.30	a	33.18	a	48.55		57.43		73.39		81.17		85.39		84.13		78.87		65.94		53.40		38.90		60.89
1905	30.24	b	30.77	b	56.35		63.73		75.13		85.86	a	84.19		87.06		80.00		65.06		53.00		39.55		62.58
1906	42.69	b	38.04	a	37.57	a	68.60		77.35		80.87		86.71		87.90		82.10		65.55		50.17		41.84		63.28
1907	41.87		39.43		58.81		53.83		68.84		79.37		86.94		83.29		76.66	a	64.58		49.77		40.71		62.01
1908	39.84		36.93		57.27	a	63.60		74.52		82.30		87.13	a	87.48		85.07		69.13		54.76	a	43.81		65.15
1909	39.94		44.93		50.52		63.77		71.65		84.20		83.13		89.39		76.53		62.94		61.90		32.06		63.41
1910	35.87		37.86		64.68		64.83		69.13		82.43		84.71		83.23		77.03		69.68		49.37		35.74		62.88
1911	41.19		44.50		54.26		61.43		82.52		89.37		89.94		85.71		80.00		64.29		46.00		42.77		65.16
1912	25.19		31.79		40.52		66.80		76.55		79.79	a	85.48		82.81		78.67		70.28	b	53.00		45.27	a	61.35
1913	41.52	d	36.89		50.35		63.80		78.55		89.50		93.06		-----	z	-----	z	62.88	f	57.76	a	44.53	a	61.77	c
1914	43.26		33.36		48.81		63.97	a	80.32		93.17		96.16		89.81		78.97		68.87		57.37		32.77		65.57
1915	34.61		45.46		45.42		71.28	a	71.57	a	79.53		82.44	d	76.65		80.13		70.90	a	57.90		38.27	a	62.85
1916	42.77		39.14		51.94		62.93		78.13		80.40		94.84		91.13		79.23		69.35		57.53		40.35		65.65
1917	42.06		38.79		55.61		62.90		69.04	e	81.73		88.00		84.29		79.43		60.06		54.03		32.19		62.35
1918	23.58		43.64		59.21	b	56.69	d	82.11	c	87.87		86.84		91.94		72.37		69.52		52.50		49.77	a	64.67
1919	43.55		43.04	b	55.29		66.53		71.65		87.50		93.74		87.03		85.30		71.23		51.07		35.48		65.95
1920	31.65		39.97		53.97		58.23		73.39		85.30		88.32		86.29		82.13		74.00		50.93		41.16		63.78
1921	42.29		46.11		64.23		67.86	a	77.58		88.57		94.29		85.10		82.77		68.29		53.97		43.84		67.91
1922	36.94		42.79		54.29		66.57		78.23		87.73		87.61		89.48		86.70		72.77		55.14	a	43.74		66.83
1923	42.23		36.11		52.74		63.93	a	73.03		83.73		89.40	a	86.58		77.43		63.87		54.60		51.26		64.58
1924	32.71		39.52		44.87		68.31	a	68.84		82.33		85.58		87.32		74.27		75.70	a	54.53		36.48		62.54
1925	37.65		49.04		57.81		73.47		76.52		88.33		89.39		87.97		87.10		56.19		50.20		38.84		66.04
1926	38.58		43.29		38.24	n	58.43		79.77		80.97		92.29		88.13		79.07		65.48		48.47		37.42		64.72	a
1927	34.81	d	50.82		54.61		64.21	a	73.84		79.83		88.29		82.00		84.90		74.68		57.87		40.29		65.51
1928	39.87		43.38		53.32		61.24	a	77.83	a	77.67		89.84		89.48		81.04	f	68.52		52.60		44.52		63.48	a
1929	35.68		35.89		61.13		68.40		72.58		83.43		89.71	c	87.31	b	80.17		66.23		47.80		39.45		63.98
1930	32.45		51.43		52.06		70.30		77.52		86.00		94.35		91.13		83.47		66.52		54.45	a	40.03		66.64
1931	42.77		48.50		46.87		67.27		72.68		88.63		94.13		87.71		86.07		71.84		62.80		49.00		68.19
1932	46.00		51.24		47.06		67.43		77.90		88.07		93.45		90.03		82.67		69.35		48.73		42.19		67.01
1933	49.45		43.14		52.90		65.43		77.10		94.33		94.58		88.19		89.50		68.97		54.00		46.48		68.67
1934	43.94		37.25		50.55		66.97		83.90		95.90		96.48		88.00		77.93		73.32		56.37		36.90		67.29
1935	40.61		43.68		59.32		60.27		68.87		79.33		91.23		87.58		80.43		67.55		50.30		34.03		63.60
1936	30.71		32.24		56.77	a	61.00		79.61		88.97		99.03		94.35		82.60		66.00		50.00		44.16		65.45
1937	40.13		38.89		48.33	a	63.07		75.55		82.40		86.87		88.39		78.27		63.32		49.63		36.03		62.57
1938	37.65		47.75		59.42		65.77		74.42		82.63		88.61		87.81		81.31	a	73.48		56.10		41.94		66.41
1939	43.68		41.75		54.97		60.67		78.81		84.07		87.71		84.68		86.27		71.74		52.80		45.74		66.07
1940	24.03		37.86		49.29		62.93		71.77		84.77		90.13		88.65		79.40		72.90		50.13		44.87		63.06
1941	38.90		37.86		48.06		69.20		80.06		85.90		89.29		89.03		81.73		69.19		53.93		45.32		65.71
1942	39.81		37.11		56.77		70.60		73.74		83.27		86.32		83.42		77.70		70.26		56.10		36.32		64.28
1943	38.94		48.57		49.39		64.10		72.84		86.27		90.39		91.00		77.87		68.06		50.13		38.39		64.66
1944	42.87		44.03		48.29		61.83		79.32		-----	z	-----	z	-----	z	-----	z	-----	z	44.53	m	34.90		51.88	f
1945	33.32		42.93		63.06		64.23		69.39		79.60		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	58.76	f
1946	38.36	t	46.57		65.58		69.10		70.06		84.20		88.16		81.32		80.73		74.55		55.70		45.81		69.25	a
1947	41.77		34.00		43.90		63.87		71.68		78.80		83.97		94.52		80.17		75.90		45.43		42.39		63.03
1948	33.68		42.10		52.74		68.50		74.16		84.79	a	86.38	b	88.06		80.90		65.67	a	55.23		44.21	b	64.70
1949	40.07	a	45.11		53.03		64.79	b	79.69	b	86.08	f	90.03	b	85.54	e	76.13		70.53	a	55.97		47.59	b	64.41	a
1950	49.85	d	42.50	b	50.19		59.17	a	79.59	d	84.35	d	85.61	c	84.44	d	75.82	m	73.16		50.28	e	32.03		62.83	a
1951	39.42		41.50		46.56	f	61.85	d	-----	z	81.46	f	87.00	c	86.76	f	76.92	d	70.72	b	45.29	b	39.61		57.79	d
1952	42.13		46.31		50.68		65.17		74.96	c	90.23		89.77	e	86.59	d	82.67	u	65.27	e	52.21	b	41.58		64.08	a
1953	41.00		47.43		53.06		60.56	e	75.04	c	89.85	c	91.32	l	89.29	c	85.92	d	75.10		55.97		43.13		65.12	a
1954	40.26		48.74	a	48.19		68.93	b	69.75	c	89.33		94.23		87.10		85.67		67.48		52.90		39.19		65.98
1955	37.00	a	40.39		50.90		70.10		76.58		77.40		90.94		90.45		85.19	c	67.97	b	47.97		37.39		64.36
1956	36.32		39.90		51.61		63.37		77.16		85.79	a	85.39		86.32		82.17		77.00		53.00		44.97		65.25
1957	32.58		45.04		51.94		63.67		74.10		83.30		87.87		87.42		77.67		63.61		50.67		46.90	a	63.73
1958	36.71		35.07		43.77	a	65.10		75.39		79.67		83.13		85.03		78.73		69.32		55.83		36.03		61.98
1959	33.19		41.21		53.06		65.27		77.13		87.20		88.28	b	88.13		81.60		66.16		45.57		43.71		64.21
1960	36.73	a	35.00		33.63	a	68.29	b	70.35		81.67		85.61		87.87		84.67		69.74		53.57		35.23		61.86
1961	35.55		45.48	a	53.71		58.57		71.13		82.63		87.23		84.48		83.23		68.94		52.07	b	37.94		63.41
1962	31.19		43.57		46.81		63.57		83.06		85.07		86.06		86.84		77.17		70.68		52.47		36.90		63.62
1963	28.35		34.86		57.29		70.00		74.16		87.03	a	86.39		83.13		81.77		79.35		56.63		28.65		63.97
1964	41.52		39.86		51.65		66.17		80.00		87.37		88.23		88.06		81.30		67.59	b	58.28	a	38.90		65.74
1965	39.13		41.89		42.39		67.20		81.39		83.30		85.48		85.03		78.67		66.81		57.20		47.23		64.64
1966	31.81		40.04		54.52		60.40		71.37	a	84.80		92.77	a	85.10		76.40		65.10		54.20		39.77		63.02
1967	41.23		39.37	a	54.87		68.20		70.48		83.90		84.77		80.74		76.30		64.68		47.77		40.77		62.76
1968	33.84		37.07		55.48		65.07		70.87	a	85.17		86.29		85.61		79.80		65.23	a	49.13		37.68		62.60
1969	33.55		40.04		46.23		66.33		76.13		81.23		87.23		85.10		77.73		65.74		48.73		35.81		61.99
1970	29.10		38.68		47.45		66.17	a	78.48		80.93	a	87.26		85.16		84.55	s	63.71	c	49.27		43.32		60.87	a
1971	33.29		38.36		48.53	a	65.77		71.03	a	86.37		81.19		82.84		80.27		72.24	b	53.33		46.04	c	63.27
1972	36.55		40.17		51.77		63.17		76.58		81.17		84.06		83.52		78.40		61.13		45.07		37.10		61.56
1973	39.23		42.00		58.45		60.33		70.58	g	82.63		85.55		83.77		78.73		71.74		54.96	b	37.00	d	63.13	a
1974	39.17	a	44.32		56.68		66.47		71.39		78.57		89.40	a	83.19		71.20		67.00		51.37		40.84		63.30
1975	40.10		38.36		47.45		63.00		77.03		84.03	a	84.68		85.23		74.10		71.17	a	57.40		40.94		63.62
1976	33.90	b	51.17		59.00		68.67		71.55		82.67		87.77		83.26		78.03		60.42		46.53		37.16		63.34
1977	21.19		39.39		57.35		70.53		81.90		81.17		89.48		83.10		79.63		63.81		51.17		37.39		63.01
1978	26.00		28.79		43.84		66.17		71.77		83.70		86.00		82.71		83.24	a	65.84		56.33		41.16		61.30
1979	24.19		29.54		52.94		61.90		74.53	a	84.97		83.65		82.77		80.47		67.94		51.03		45.55		61.62
1980	35.74		32.43	a	45.84		62.43		75.71		83.17		91.23		88.35		80.60		63.90		51.00	a	40.61		62.58
1981	34.19		43.15	a	52.48		70.00		68.32		83.67		84.61		81.39		75.00		65.68		55.03		36.81	e	62.53
1982	29.46	c	35.14		52.16		59.59	a	79.74		77.38	a	84.48		82.03	a	76.23		67.55		53.23		47.42		62.04
1983	35.97		45.00		51.26		58.10		69.87		83.07		89.77		90.35		81.03		67.32		55.17		26.77	a	62.81
1984	31.32		46.79		42.29		60.47		72.13		86.70		85.39		86.29		75.14	a	69.50	a	51.52	a	48.94		63.04
1985	28.60	a	35.89		56.61		70.17	a	76.55		79.86	a	84.68		79.68		78.40		69.07	a	53.43		32.26		62.10
1986	41.23		40.15	a	57.77	a	70.34	a	76.16		84.57		87.13		81.26		81.68	b	65.71		47.10	a	39.90		64.42
1987	34.50	a	46.21		57.26		67.47		82.29		85.87		85.70	a	85.47	a	80.93	a	62.39		56.76	a	40.90	a	65.48
1988	35.52		37.93		52.57	a	67.17		79.97		88.50		90.26		90.16		81.83		61.55		54.00		41.94		65.12
1989	45.84		34.12	d	54.71	c	63.40		71.04	c	81.43		83.61		82.55		74.13		69.80	a	52.83		27.93	b	61.78
1990	47.52		46.33	a	56.83	a	62.86	a	69.19		81.57		83.81		81.16		78.40		65.94		58.40		41.90	a	64.49
1991	31.42		44.22	a	55.89	c	67.31	a	78.81		85.00		86.84		86.00		79.87		69.13		47.83		43.52	b	64.65
1992	39.86	b	48.14	a	54.19		63.79	a	74.06		82.38	a	84.58		80.90	a	76.67		66.40	a	51.00	c	41.27	a	63.60
1993	37.81		38.29	d	47.03		60.83		75.45		83.30		87.55		86.57	a	73.07	a	64.32		50.00		38.71		61.91
1994	29.94		37.93		52.71		65.77		73.58		87.59	a	85.77	a	82.65		79.18	b	68.29		57.57		46.26		63.93
1995	36.77		40.25		55.77		65.45	a	72.26		84.93		88.71		90.29		77.30		70.50	a	47.23		37.13		63.88
1996	34.43	a	41.97		46.74		61.59	a	74.65		83.86	a	86.13		85.66	b	75.87		67.73	a	44.86	a	41.13		62.05
1997	32.61		42.50		56.14	b	61.30		69.37	a	80.27		87.57	a	81.57	a	79.69	a	67.00		46.50		39.71		62.02
1998	41.68		49.07		50.47	a	64.67		79.40	a	82.76	a	85.45		86.29		85.40		69.03		55.33		44.40	a	66.16
1999	38.10	b	45.57		49.06		65.47		77.07	a	83.24	a	90.90		84.26		82.10		68.35		60.70		42.43	a	65.61
2000	37.43	a	48.75	a	58.52		65.72	a	76.81		81.63		83.52		85.26		77.80		70.26		48.34	a	27.23	a	63.44
2001	34.62	b	43.41	a	48.48		72.23		77.39		81.47		87.35		85.97		78.23		66.06		61.20		44.52		65.08
2002	43.93	a	44.81	a	49.10		66.97		72.94		86.10		90.97	a	86.84		84.13		64.42		49.33		41.17	a	65.06
2003	31.16		35.85	a	57.00	a	67.73		73.00		80.69	a	87.03		86.42		76.50		67.58		56.20		41.68		63.40
2004	34.32		40.97		55.16		66.90	a	78.68		82.63		82.77	a	80.90		81.63		65.86	b	55.07	a	41.61		63.88
2005	37.77	a	45.56	a	49.73	a	67.70		75.65		87.17		88.52	b	87.52	b	84.57		67.16		56.47		34.94		65.23
2006	48.61		43.39		52.55		71.00		73.23		83.60		88.35		84.90		75.80		64.00		54.50		46.26		65.52
2007	39.32		30.14		62.16		63.79	a	80.77		86.30		84.40	a	91.13		83.70		72.20	a	54.31	a	40.19		65.70
2008	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	83.45	t	80.25	n	67.37	l	49.67	c	41.46	c	45.57	j
2009	32.55		44.67	a	61.71	q	64.90	a	75.77		84.96	b	81.90		83.20	a	78.27		60.83	a	57.73		38.84		63.97	a
2010	29.69	b	35.41	a	54.86	b	73.93	a	76.07	b	86.57	b	89.10	b	90.32		81.43		72.97		56.20		33.29		64.99
2011	32.39		43.25		53.87		70.00	a	74.30	a	85.38	a	91.63	d	88.90		76.97		69.47	a	57.07		44.77	a	65.67
2012	42.81		46.14		70.30	a	69.43		83.93	b	87.14	a	97.48		88.87	a	77.97		65.13		54.23		47.27	a	69.22
2013	41.97	b	42.22	a	45.61		65.69	a	77.35		83.47		84.17	a	85.90		84.97		68.30	a	52.85	c	40.54	c	64.42
2014	35.79	g	35.59	a	51.40	a	68.90	a	76.43	c	86.15	d	83.00	c	85.94		79.43		68.04	f	48.79	b	40.57	c	65.62	b
2015	37.10	a	31.81	a	51.52	d	67.41	a	78.76	b	83.20		85.61		85.47	a	81.36	b	68.87	a	60.69	a	51.32		65.26
2016	38.23	a	45.28		60.93	a	66.52	a	75.31	b	88.85	c	87.35	e	87.62	e	84.61	b	73.89	d	60.64	b	37.97	a	67.27
2017	43.29	c	57.12	c	56.50	g	73.21	a	76.23	e	85.92	d	89.72	f	84.45	b	85.21	f	73.88	g	56.85	d	41.50	c	64.82	d
2018	33.88	g	48.70	e	50.73	a	60.14	a	86.26	d	86.92	d	86.50	c	86.34	b	85.32	h	68.83	a	46.62	d	46.00	d	66.70	b
2019	36.06		42.77	b	49.81	d	67.87		78.45		84.31	a	90.63	d	88.55		85.75	b	68.07	b	47.93	c	48.11	c	65.69
2020	42.81	d	43.08	d	53.46	e	63.80	e	73.80	a	86.60		89.19		84.27	a	79.86	a	67.32		59.37		45.27	a	65.74
2021	39.53	a	33.04		59.50	a	65.79	a	73.83	a	85.27		86.97		90.06		82.13		73.68		51.93	a	54.71		66.37
2022	32.81		45.83	e	59.17	a	63.17		78.57	c	86.93		87.52		84.90		79.93	a	68.53	a	54.79	a	44.56	d	65.56
2023	44.61		53.42	b	56.53	a	70.96	f	78.81		86.13		87.97		86.69	b	83.27		70.06		57.96	c	49.30	a	68.61	a
2024	37.10	a	56.04	a	63.50	a	67.33	o	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	52.21	i
Period of Record Statistics
MEAN	37.02		41.09		52.57		65.05		75.47		84.19		87.88		86.08		80.04		68.18		52.92		40.63		64.17
S.D.	5.48		5.75		5.79		3.83		3.91		3.41		3.43		3.08		3.48		3.93		4.06		5.10		1.78
SKEW	-0.31		0.07		-0.08		-0.13		0.16		0.49		0.84		-0.00		0.15		0.04		0.03		-0.19		0.41
MAX	49.85		57.12		70.30		73.93		86.26		95.90		99.03		94.52		89.50		79.35		62.80		54.71		69.22
MIN	21.19		28.54		33.63		53.83		68.06		77.38		81.19		76.65		71.20		56.19		44.86		26.77		60.89
YRS	125		128		124		125		125		123		121		122		117		121		125		126		105