SUPERIOR, WI

Average of Maximum Temperature (Degrees Fahrenheit)

(478349)

File last updated on April 23, 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
1909	-----	z	-----	z	-----	z	45.38	v	50.88	f	68.89	b	75.52		73.65		64.53		50.77		41.63	c	21.21	c	56.60	e
1910	23.04	c	19.71	d	44.83	a	47.47		55.74		75.21	a	77.45		72.65		65.73	d	57.07	b	31.43	b	22.93	b	49.44
1911	18.77		26.64		40.33	a	43.23		59.35		68.59	a	74.04	g	71.62	b	63.32	e	50.76	b	33.59	h	29.57	c	47.22	b
1912	2.21	b	18.30	b	30.11	d	45.68	b	57.00	k	71.67	f	72.59	d	64.90	b	63.64	b	57.81	e	41.93	c	33.05	l	44.13	c
1913	19.20	f	17.65	e	29.19	e	51.64	e	57.96	f	73.35	d	71.96	e	73.40	f	63.92	e	48.96	d	45.52	c	36.88	e	48.79	c
1914	29.89	l	15.31	b	32.78	d	41.39	g	67.64	f	69.56	e	76.42	e	71.55	b	65.63	c	58.92	f	39.96	d	18.60	f	53.03	e
1915	19.96	g	28.59	f	35.59	d	55.42	d	52.32	f	63.54	d	70.59	d	71.89	c	65.71	b	51.86	c	38.96	g	28.32	f	59.23	e
1916	18.44	f	18.00	c	28.68	c	47.20	e	56.38	e	63.46	d	81.88	f	76.62	b	62.60		52.69	e	39.74	c	19.44	f	49.49	c
1917	14.76	f	12.14		32.89	c	39.41	c	56.27	e	61.00	b	75.74	d	70.62	b	63.62	d	43.77	e	43.24	e	16.42	g	49.87	b
1918	10.90	b	20.26	a	40.87		42.30		56.55		68.69	a	72.32		74.32		59.83		53.52		41.73		31.97		47.77
1919	27.48		23.81	a	33.40	a	45.68	b	57.13		62.79	a	75.68		74.63	a	64.54	d	48.75	c	32.03	a	17.07	c	46.92
1920	13.80	a	22.25	a	33.94		39.00	a	57.74		65.77		74.16		73.06		69.47		60.19		35.97		28.61		47.83
1921	26.87		28.46		34.74		48.83		56.94		71.77		81.76	b	72.63	a	67.87		53.97		31.73		25.23		50.07
1922	21.07	b	19.50		34.39		43.17		55.55		71.60		73.32		73.97		66.87		54.81		41.66	a	23.13		48.25
1923	22.52		17.11		26.19		45.68	e	57.20	a	71.40		73.74		71.70	a	65.70		54.77		44.87		34.84		48.81
1924	13.19		28.59		33.45		43.03		57.74		69.90		75.42		73.39		61.76	a	57.90		38.37		14.81		47.30
1925	21.55	b	25.07		35.32		48.07		57.77		70.97		76.67	a	77.52		65.77		42.73	a	37.79	a	22.16		48.45
1926	24.20	f	26.21		29.23		49.66	a	54.33	a	67.17	a	71.43	c	71.81		58.70		49.97	a	32.00		23.20	a	48.52	a
1927	18.48		26.33	a	37.97		44.70		50.13	a	66.79	a	71.93	a	69.61		64.55	a	54.26		34.70		15.50	a	46.25
1928	21.19		24.31		33.83	a	43.13		63.40	a	64.50		72.81		73.06		60.40		52.45		42.27		29.10		48.37
1929	9.30	a	15.82		37.94		46.20		54.80	a	67.67		76.61		74.74		63.86	a	56.35		35.03		23.33	a	46.81
1930	13.70	a	28.67	a	35.19		47.37		57.00	a	75.60		77.13		79.74		65.90		48.19		40.52	a	29.48		49.87
1931	29.87	a	36.27	b	34.03		51.17		60.17	a	67.64	b	80.00	a	73.26		69.54	b	61.16		44.43		34.52		53.50
1932	27.10		24.25	a	27.42		43.13		60.48	b	67.20		75.55		76.71		67.03		50.61		36.57		24.40	a	48.37
1933	28.55		17.89		32.48		44.10		54.77		75.20		75.00		73.58		68.17		50.52		33.53		21.97		47.98
1934	27.39		20.07		31.19		45.39	b	63.48		67.90		74.93	a	71.65		59.40		56.10		42.30		22.03		48.49
1935	16.73	a	29.93		33.77		40.73		55.68		66.17		76.58		72.65		63.47		52.81		34.00		25.03		47.30
1936	14.68		9.10		33.65		43.13		59.87		69.97		78.68		75.58		66.20		49.84		35.30		27.23		46.93
1937	15.53	a	22.57		31.58		42.57		56.45		71.33		76.10		79.65		65.97		50.52		35.00	a	23.32		47.55
1938	19.06		25.50		40.40	a	47.77		53.77		71.04	b	72.94		79.35		67.23		57.97		36.83		27.13		49.92
1939	24.48		18.61		32.45		43.33		59.61		65.27		77.42		73.87		65.93		52.13		43.30		35.58		49.33
1940	17.00		27.76		28.65		42.77		55.00		67.97		76.52		72.33	a	68.67		57.84		35.00		28.06		48.13
1941	22.84		23.57		32.10		49.97		62.94		68.67		81.06		74.58		65.37		55.61		39.70		32.55		50.75
1942	27.13		25.79		37.65		53.43		56.06		63.17		73.90		73.81		62.93		53.68		39.90	a	22.06		49.13
1943	17.23		25.89		27.32		47.53		59.65		66.40		80.52		75.16		61.70		55.00		33.73		27.77		48.16
1944	30.84		25.24		31.84		42.70		57.48		68.20		75.52		74.77		63.87		56.77		41.37		26.33	a	49.58
1945	19.93	c	27.46	d	43.89	c	44.79	b	54.74	d	66.61	b	74.72	b	75.47	a	64.30	c	54.43	c	37.52	g	22.23	i	52.63	b
1946	25.65	h	23.04	c	44.64	f	53.46	d	57.08	f	71.20	e	79.08	e	74.53	a	65.42	d	55.69	e	41.38	d	27.91	h	57.98	d
1947	29.88	g	25.04	d	39.93	b	45.56	c	58.43	j	-----	z	79.46	e	79.85	e	71.85	d	65.47	a	33.81	c	27.81	d	52.09	c
1948	21.93	a	24.96	a	35.52		53.57		67.40	a	74.23		78.06		80.45		76.50		61.84		40.47		28.39		53.61
1949	25.45		24.18		34.52		59.53		64.65		77.55	a	79.39		79.48		66.50		56.84		41.87		26.55		53.04
1950	17.39		26.32		29.84		39.31	d	56.39		73.67		75.03		72.42		68.79	a	58.81		34.79	a	21.10		47.82
1951	19.23		25.21		30.87	a	50.48	a	66.55		69.80		80.32		71.55		63.57		54.06		33.13		22.27	a	48.92
1952	22.69	b	31.46	a	35.06		60.73		67.42	g	74.97		79.72	b	77.10		70.07		56.40	a	42.07		31.16		52.86	a
1953	25.84		26.89		37.48		47.23		62.40	a	71.10	a	78.65		79.74		68.24	e	64.27	a	46.80		29.32		53.16
1954	19.35		37.61		34.90		50.53		55.63	a	73.90		78.74		77.71		65.13		53.68		43.90		30.71		51.82
1955	22.89	d	25.71		32.06		59.20		68.07	a	75.50		81.43	a	82.42		68.17		58.55		33.90		22.10		52.50
1956	25.68		27.07		34.10		47.27		63.84		72.73		73.84		74.23		65.57		65.84		39.60		28.77	a	51.54
1957	16.52		25.86		36.61		53.40		63.10		69.57		79.81		78.58		67.10		56.61		38.80		30.58		51.38
1958	27.48		23.96		38.10		55.27		68.58		69.83		76.10		78.39		69.33		58.55		41.93		20.33	a	52.32
1959	16.81		25.11		40.55		53.93		65.06		75.57		82.58		78.65		68.60		50.68		31.30		34.42		51.94
1960	23.32		26.72		30.90		52.17		59.26		74.00		81.26		78.71		69.40		59.13		41.90		24.87		51.80
1961	21.29		34.39		41.87		47.53		66.26		77.76	a	79.52		84.48		70.00		60.23		40.97		24.13		54.04
1962	17.65		21.82		35.29		48.97		60.42		69.80		74.71		76.74		66.33		58.45		43.77		27.84		50.15
1963	13.81		21.89		40.58		54.97		63.80	a	74.73		83.35		77.03		70.70		67.84		46.03		19.71		52.87
1964	30.42		31.79		36.16		48.00		67.48		71.43		82.65		72.13		-----	z	57.71		40.87		21.23		50.90	a
1965	20.39		21.64		29.45		49.77		63.38	b	69.43		74.87	a	75.77		60.07		57.74		38.97		31.87		49.45
1966	14.23		-----	z	39.03		45.83		62.94		77.13		84.10		75.77		68.00		57.58		36.96	b	26.39		53.45	a
1967	25.48	b	19.00	c	38.90	a	50.63		61.13		-----	z	-----	z	71.55	t	69.67		55.90		38.40		28.32		43.05	c
1968	22.52		25.14		46.16		54.80		56.35		66.57		77.83	a	-----	z	68.13		58.45		40.57		25.39		49.26	a
1969	19.61		26.71		35.13		48.93		61.94		62.67		71.81		82.58		67.97		49.26		38.03		29.23		49.49
1970	15.39		24.86		-----	z	44.53		52.16		68.40		79.42		78.48		66.00		52.58		37.83		24.16		49.44	a
1971	14.65		23.04	a	32.77		47.67		55.26		66.13		74.71		74.39		67.33		58.10		37.87		24.87		48.06
1972	14.81		20.10		27.45		39.83		54.00		66.34	a	71.71		71.32		63.93		50.61		35.67		19.03		44.57
1973	24.32		26.57		37.58		47.97		52.71		66.53		77.45		74.00		66.60		57.81		40.77		25.26		49.80
1974	19.87		19.88	l	30.29		43.37		52.13		68.77		76.19		70.74		61.73		53.97		40.17		32.06		49.94	a
1975	23.61		25.82		32.35		39.67		62.19		64.73		83.16		74.77		63.07		55.90		43.93		24.10		49.44
1976	19.90		34.69		-----	z	52.03		60.03		71.13		78.77		77.23		69.60		50.06		35.47		17.19		51.47	a
1977	11.81		29.21		38.26		48.23		61.77		66.00	a	76.00		70.65		60.80		56.10		38.20		22.74		48.31
1978	17.77	a	22.79		38.00		44.43		59.06		71.13		74.20	a	73.43	a	68.90		57.97		37.10		21.23		48.83
1979	11.17	a	13.04		32.03		41.67		53.06		66.20		73.87		70.00		67.97		50.84		37.50		33.74		45.92
1980	21.73	a	24.52		32.03		49.90		64.06		70.97		80.10		73.16		64.13		51.84		41.57		24.61		49.89
1981	26.26		26.11		41.81		50.13		61.29		69.23		-----	z	-----	z	65.86	a	52.87		45.70		25.97		46.52	b
1982	11.65		23.39		34.13		45.90		52.97		66.19	d	75.10		71.13		67.52	a	54.48		35.83		30.33	a	47.39
1983	24.58		30.54		33.39		45.93		53.79	c	65.90		80.65		82.71		66.73		53.71		37.55	a	12.81		49.02
1984	18.94		33.68	a	28.90		47.40		59.37	a	67.33		79.13		76.06		64.63		53.80	a	40.07		25.30	a	49.55
1985	21.20	a	23.39		41.33	a	48.05	h	62.26	h	65.63		77.13		70.26		64.17		55.32		32.10	a	16.06		46.66	b
1986	23.73	a	23.39		40.55		49.30		58.77		68.80		73.90		73.47	a	61.17		54.32		35.70		29.10	a	49.35
1987	26.83	a	34.14		38.17	a	54.34	a	58.29		73.17		76.13	a	74.84		68.07		51.35		42.52	a	30.39		52.35
1988	17.94		20.83		35.39		50.93		62.23	a	73.63		81.13		74.00		65.43		49.84		37.72	a	27.07	a	49.68
1989	26.97		18.48	a	28.06		44.47		58.10		64.83		76.00	a	75.68		68.40		53.93	a	34.31	a	16.00		47.10
1990	31.16		28.15	a	35.65		48.50		54.23		71.00		-----	z	74.32		67.80		53.80	a	42.60		25.39		48.42	a
1991	18.10		32.04		33.61		48.47		56.16		65.43		73.06		77.16		63.59	a	50.16		30.50		27.77	a	48.00
1992	25.81		30.38		34.68		43.53		62.39		64.73		70.06		72.55		66.47		51.39		34.87		27.68		48.71
1993	22.84		25.86		33.94		41.90		56.90	a	62.33		70.77		74.33	a	59.66	a	50.74		35.31	a	26.32		46.74
1994	10.06		19.04	b	38.45		49.67		61.37	a	68.60		72.74		72.23		66.40		55.61		43.50		31.32		49.08
1995	24.42		24.18		33.81		40.79	b	59.97		67.13		74.77		73.58		65.38	a	53.23		29.87		22.52		47.47
1996	16.67	a	22.50	a	28.84		43.20		54.19	d	-----	z	71.43	a	74.39		63.73		55.81		31.83		21.87		44.04	a
1997	18.16		27.93		32.52		45.31	d	52.71		69.50		70.68		71.81		68.10	a	53.52		35.69	a	33.61		48.29
1998	26.17	a	35.59	a	35.32		52.53		60.87		64.60		77.58		76.74		71.53		56.68		42.52	a	30.60	a	52.56
1999	19.90		32.25		38.61		47.33		60.21	c	67.63		77.72	b	72.35		70.50	v	49.06		45.27		32.16		49.32	a
2000	24.23		31.90		42.03		44.80		60.00		66.55	a	72.73	a	75.13		67.03		55.16		37.87		15.90	b	49.44
2001	28.77		22.26	a	36.68		47.37		58.97		68.63		73.87	a	78.13		65.97		54.06		49.43	b	32.35		51.37
2002	29.77		33.54		30.48		45.47		56.00		68.93		78.50	a	71.87		67.47		46.35		36.30		30.45		49.59
2003	21.35		22.46		31.77		44.90		55.65		63.97		79.06		78.84		66.97		53.68		38.13		31.16		49.00
2004	16.55		29.41		38.61		48.37		52.52		66.87		73.03		68.97		66.10		53.97	a	44.23		27.13		48.81
2005	20.16		31.19	a	35.06		46.45	a	53.65		67.10		75.19		74.50	a	69.50		54.97		40.97		26.93	a	49.64
2006	34.06		26.41	a	37.71		50.43		56.42		71.10		83.39		76.10	a	65.62	a	50.19		41.20		33.42		52.17
2007	26.53	a	19.54		38.90		-----	z	57.42		69.33		77.39		-----	z	67.10		56.52		39.43		23.97		47.61	b
2008	-----	z	-----	z	34.87		46.87		57.10		70.97	a	76.29		75.68		-----	z	54.03		37.90		20.58		52.70	c
2009	17.00		27.46		33.06		46.86	a	60.48		67.00	a	73.69	r	71.74		69.53		48.77		46.40		23.42		46.52	a
2010	22.55		28.79		45.10		52.32	b	58.87		66.53		78.93	d	75.68		61.03		56.55		40.46	b	23.80	a	50.88
2011	18.58		28.04		35.42		46.57		53.48		59.46	d	80.00		78.94		64.97		55.58		42.60		33.19		49.74
2012	30.56	f	33.21		43.77		47.80		62.03		73.40		82.48		77.43	a	68.07		49.20	a	39.83		29.00		55.11	a
2013	23.03		25.59	a	32.10	a	40.97	a	52.00		64.37		74.58		78.58		69.43		53.90		38.77		16.81		47.51
2014	15.52		14.36	n	29.76	j	42.03		56.48		63.97		76.16		69.87		73.60	y	-----	z	27.43	i	28.77	a	50.40	e
2015	22.90	a	18.33	a	41.68		50.47		56.45		63.00	p	80.68		74.73	a	70.90	a	56.37	a	46.07		34.23		50.25	a
2016	23.55		29.52		37.35		41.04	d	60.13	a	68.63		76.73	a	78.00		68.21	a	56.58		49.50		25.32		51.21
2017	26.19		33.52	a	35.26		46.83		54.83	b	72.45	a	77.16		71.32		68.97		57.13		37.37		20.80	a	50.15
2018	23.27	a	23.50		35.37	a	41.74	c	63.13	a	65.57		80.13		76.23		66.97		48.94		31.43		30.03		48.86
2019	17.97		21.04		36.19		46.54	b	55.74		65.07		78.90		75.97		64.80		51.74		34.17		27.35		47.96
2020	27.00		29.55		38.74		44.07		55.48		69.37		78.77		76.23		65.40		48.35		45.60		30.32		50.74
2021	27.77		20.04		43.65		47.87		61.03		75.27		79.19		79.19		70.10		57.61		41.63		30.55		52.83
2022	18.03		20.61		34.35		39.23		55.87		71.73		75.97		73.87		68.23		56.90		40.27		23.65		48.23
2023	26.52		29.21		34.23		44.37		55.61		64.70		75.00		74.71		68.73		54.68		42.77		37.39		50.66
2024	26.42		36.41		41.00		49.77	h	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	34.61	i
Period of Record Statistics
MEAN	21.11		25.21		35.26		47.14		58.48		68.88		76.72		74.93		66.17		54.45		39.06		26.27		49.48
S.D.	5.58		5.41		4.32		4.51		4.04		3.81		3.28		3.27		3.00		4.15		4.33		5.21		1.98
SKEW	-0.38		-0.11		0.28		0.54		0.43		0.22		0.12		0.28		-0.10		0.27		-0.01		-0.25		0.35
MAX	34.06		37.61		46.16		60.73		68.58		77.76		84.10		84.48		76.50		67.84		49.50		37.39		54.04
MIN	2.21		9.10		26.19		39.00		50.13		59.46		70.06		64.90		58.70		42.73		29.87		12.81		44.57
YRS	105		110		111		111		106		110		109		110		111		113		111		108		84