SUPERIOR, WI

Maximum of Maximum Temperature (Degrees Fahrenheit)

(478349)

File last updated on April 16, 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	67.00	v	67.00	f	88.00	b	86.00		88.00		78.00		76.00		59.00	c	42.00	c	-----	z
1910	34.00	c	36.00	d	70.00	a	65.00		71.00		96.00	a	95.00		86.00		84.00	d	79.00	b	53.00	b	36.00	b	96.00	s
1911	38.00		44.00		61.00	a	54.00		82.00		92.00	a	88.00	g	86.00	b	79.00	e	66.00	b	42.00	h	42.00	c	-----	z
1912	21.00	b	36.00	b	55.00	d	76.00	b	76.00	k	93.00	f	87.00	d	78.00	b	82.00	b	82.00	e	56.00	c	49.00	l	-----	z
1913	40.00	f	33.00	e	51.00	e	80.00	e	82.00	f	91.00	d	85.00	e	90.00	f	78.00	e	78.00	d	63.00	c	52.00	e	-----	z
1914	41.00	l	45.00	b	52.00	d	60.00	g	88.00	f	83.00	e	89.00	e	94.00	b	83.00	c	79.00	f	55.00	d	40.00	f	-----	z
1915	40.00	g	39.00	f	49.00	d	81.00	d	81.00	f	80.00	d	88.00	d	87.00	c	83.00	b	63.00	c	60.00	g	41.00	f	-----	z
1916	39.00	f	47.00	c	41.00	c	67.00	e	73.00	e	76.00	d	97.00	f	88.00	b	77.00		71.00	e	68.00	c	45.00	f	-----	z
1917	36.00	f	39.00		49.00	c	47.00	c	82.00	e	81.00	b	95.00	d	86.00	b	80.00	d	64.00	e	62.00	e	38.00	g	-----	z
1918	29.00	b	45.00	a	68.00		61.00		86.00		80.00	a	90.00		90.00		74.00		75.00		57.00		49.00		90.00	d
1919	42.00		39.00	a	59.00	a	69.00	b	90.00		84.00	a	90.00		86.00	a	78.00	d	76.00	c	51.00	a	40.00	c	90.00	q
1920	35.00	a	35.00	a	62.00		59.00	a	76.00		86.00		87.00		88.00		90.00		79.00		48.00		43.00		90.00	c
1921	45.00		45.00		61.00		75.00		88.00		90.00		99.00	b	92.00	a	89.00		73.00		56.00		43.00		99.00	c
1922	37.00	b	39.00		48.00		57.00		82.00		94.00		86.00		90.00		84.00		82.00		55.00	a	43.00		94.00	c
1923	36.00		40.00		50.00		77.00	e	80.00	a	87.00		92.00		84.00	a	82.00		76.00		59.00		54.00		92.00	g
1924	47.00		44.00		44.00		61.00		77.00		86.00		91.00		92.00		77.00	a	72.00		59.00		37.00		92.00	a
1925	45.00	b	54.00		68.00		71.00		87.00		92.00		92.00	a	91.00		87.00		59.00	a	64.00	a	41.00		92.00	e
1926	37.00	f	41.00		56.00		75.00	a	82.00	a	95.00	a	90.00	c	89.00		78.00		69.00	a	48.00		38.00	a	95.00	n
1927	43.00		45.00	a	53.00		76.00		72.00	a	94.00	a	85.00	a	84.00		83.00	a	72.00		51.00		36.00	a	94.00	f
1928	45.00		41.00		62.00	a	71.00		84.00	a	86.00		88.00		89.00		78.00		69.00		60.00		42.00		89.00	b
1929	29.00	a	37.00		60.00		73.00		77.00	a	87.00		94.00		91.00		92.00	a	80.00		55.00		44.00	a	94.00	d
1930	37.00	a	55.00	a	51.00		62.00		80.00	a	86.00		96.00		94.00		85.00		80.00		60.00	a	50.00		96.00	d
1931	40.00	a	55.00	b	42.00		77.00		88.00	a	93.00	b	94.00	a	93.00		92.00	b	80.00		65.00		49.00		94.00	i
1932	45.00		54.00	a	42.00		64.00		91.00	b	88.00		95.00		91.00		82.00		74.00		61.00		48.00	a	95.00	d
1933	43.00		44.00		47.00		73.00		77.00		97.00		92.00		88.00		80.00		72.00		48.00		42.00		97.00
1934	46.00		42.00		51.00		62.00	b	91.00		88.00		90.00	a	93.00		68.00		77.00		64.00		40.00		93.00	c
1935	39.00	a	46.00		47.00		64.00		79.00		81.00		90.00		90.00		78.00		70.00		48.00		40.00		90.00	a
1936	36.00		39.00		48.00		63.00		81.00		89.00		105.00		94.00		84.00		75.00		60.00		40.00		105.00
1937	32.00	a	55.00		50.00		62.00		74.00		84.00		94.00		94.00		83.00		75.00		57.00	a	42.00		94.00	b
1938	39.00		47.00		65.00	a	72.00		73.00		93.00	b	88.00		94.00		83.00		81.00		66.00		39.00		94.00	c
1939	37.00		39.00		69.00		75.00		96.00		86.00		92.00		92.00		89.00		71.00		61.00		56.00		96.00
1940	30.00		36.00		44.00		59.00		86.00		86.00		93.00		89.00	a	83.00		72.00		48.00		47.00		93.00	a
1941	36.00		36.00		43.00		76.00		88.00		92.00		97.00		91.00		87.00		67.00		56.00		56.00		97.00
1942	55.00		39.00		47.00		82.00		85.00		79.00		92.00		90.00		78.00		75.00		59.00	a	36.00		92.00	a
1943	40.00		46.00		58.00		77.00		81.00		88.00		89.00		86.00		82.00		80.00		48.00		43.00		89.00
1944	44.00		44.00		45.00		61.00		90.00		87.00		88.00		91.00		81.00		73.00		62.00		38.00	a	91.00	a
1945	36.00	c	43.00	d	69.00	c	66.00	b	71.00	d	89.00	b	95.00	b	90.00	a	90.00	c	74.00	c	45.00	g	41.00	i	-----	z
1946	38.00	h	36.00	c	80.00	f	74.00	d	83.00	f	89.00	e	91.00	e	88.00	a	80.00	d	67.00	e	57.00	d	47.00	h	-----	z
1947	49.00	g	48.00	d	48.00	b	75.00	c	80.00	j	-----	z	96.00	e	99.00	e	94.00	d	85.00	a	53.00	c	37.00	d	-----	z
1948	40.00	a	45.00	a	58.00		79.00		86.00	a	94.00		99.00		99.00		93.00		73.00		63.00		46.00		99.00	c
1949	46.00		34.00		50.00		81.00		80.00		93.00	a	92.00		96.00		84.00		74.00		68.00		50.00		96.00	a
1950	35.00		40.00		44.00		61.00	d	74.00		86.00		91.00		90.00		86.00	a	79.00		50.00	a	40.00		91.00	f
1951	37.00		46.00		47.00	a	80.00	a	83.00		86.00		92.00		87.00		79.00		74.00		55.00		54.00	a	92.00	c
1952	48.00	b	40.00	a	43.00		92.00		91.00	g	91.00		89.00	b	91.00		86.00		76.00	a	64.00		45.00		92.00	m
1953	40.00		40.00		55.00		70.00		90.00	a	90.00	a	89.00		94.00		92.00	e	89.00	a	74.00		46.00		94.00	h
1954	35.00		49.00		45.00		69.00		78.00	a	89.00		91.00		89.00		85.00		68.00		64.00		42.00		91.00	a
1955	35.00	d	37.00		62.00		81.00		89.00	a	91.00		93.00	a	95.00		83.00		84.00		47.00		37.00		95.00	f
1956	39.00		41.00		50.00		64.00		80.00		94.00		87.00		88.00		82.00		84.00		60.00		45.00	a	94.00	a
1957	37.00		40.00		55.00		87.00		85.00		81.00		90.00		92.00		79.00		74.00		55.00		46.00		92.00
1958	40.00		54.00		50.00		81.00		86.00		86.00		88.00		95.00		85.00		80.00		66.00		43.00	a	95.00	a
1959	36.00		42.00		60.00		71.00		89.00		91.00		91.00		94.00		86.00		72.00		48.00		48.00		94.00
1960	36.00		39.00		50.00		77.00		83.00		88.00		95.00		90.00		91.00		80.00		56.00		48.00		95.00
1961	42.00		60.00		55.00		68.00		86.00		96.00	a	91.00		96.00		92.00		88.00		64.00		45.00		96.00	a
1962	41.00		44.00		47.00		78.00		89.00		90.00		84.00		88.00		81.00		82.00		54.00		60.00		90.00
1963	42.00		40.00		68.00		75.00		85.00	a	96.00		95.00		93.00		84.00		83.00		62.00		42.00		96.00	a
1964	47.00		49.00		53.00		69.00		94.00		91.00		97.00		88.00		-----	z	79.00		65.00		36.00		-----	z
1965	38.00		40.00		42.00		87.00		83.00	b	83.00		89.00	a	91.00		79.00		70.00		68.00		39.00		91.00	c
1966	29.00		-----	z	50.00		68.00		88.00		89.00		93.00		89.00		80.00		83.00		58.00	b	42.00		-----	z
1967	42.00	b	37.00	c	70.00	a	70.00		76.00		-----	z	-----	z	83.00	t	82.00		78.00		54.00		42.00		-----	z
1968	47.00		39.00		68.00		81.00		74.00		80.00		88.00	a	-----	z	80.00		81.00		56.00		42.00		-----	z
1969	36.00		39.00		50.00		64.00		94.00		78.00		90.00		91.00		86.00		63.00		63.00		48.00		94.00
1970	35.00		45.00		-----	z	68.00		88.00		90.00		92.00		93.00		87.00		74.00		59.00		45.00		-----	z
1971	30.00		46.00	a	41.00		67.00		79.00		87.00		87.00		91.00		89.00		73.00		56.00		36.00		91.00	a
1972	38.00		35.00		48.00		62.00		77.00		90.00	a	86.00		91.00		77.00		70.00		53.00		35.00		91.00	a
1973	52.00		46.00		49.00		72.00		82.00		82.00		95.00		92.00		85.00		77.00		54.00		40.00		95.00
1974	40.00		38.00	l	50.00		67.00		74.00		87.00		95.00		87.00		78.00		78.00		58.00		46.00		95.00	l
1975	38.00		40.00		55.00		57.00		84.00		84.00		97.00		90.00		79.00		81.00		74.00		41.00		97.00
1976	41.00		59.00		-----	z	74.00		78.00		92.00		90.00		98.00		97.00		83.00		55.00		42.00		-----	z
1977	35.00		49.00		57.00		75.00		91.00		85.00	a	94.00		81.00		78.00		70.00		60.00		40.00		94.00	a
1978	30.00	a	35.00		65.00		68.00		85.00		90.00		90.00	a	90.00	a	93.00		77.00		73.00		39.00		93.00	c
1979	29.00	a	34.00		49.00		65.00		85.00		84.00		88.00		86.00		81.00		68.00		52.00		44.00		88.00	a
1980	42.00	a	40.00		42.00		84.00		91.00		94.00		95.00		89.00		79.00		84.00		59.00		44.00		95.00	a
1981	53.00		59.00		58.00		70.00		89.00		84.00		-----	z	-----	z	88.00	a	67.00		66.00		38.00		-----	z
1982	35.00		45.00		50.00		82.00		72.00		86.00	d	87.00		87.00		83.00	a	73.00		58.00		50.00	a	87.00	f
1983	39.00		46.00		46.00		73.00		73.00	c	92.00		96.00		99.00		94.00		74.00		56.00	a	32.00		99.00	d
1984	44.00		54.00	a	46.00		70.00		86.00	a	87.00		91.00		95.00		90.00		71.00	a	62.00		45.00	a	95.00	d
1985	40.00	a	54.00		56.00	a	78.00	h	85.00	h	85.00		88.00		89.00		87.00		69.00		51.00	a	39.00		89.00	s
1986	44.00	a	35.00		71.00		75.00		94.00		90.00		89.00		88.00	a	75.00		75.00		53.00		38.00	a	94.00	c
1987	43.00	a	52.00		72.00	a	85.00	a	84.00		91.00		95.00	a	93.00		82.00		75.00		57.00	a	41.00		95.00	e
1988	40.00		46.00		51.00		73.00		87.00	a	96.00		100.00		94.00		77.00		68.00		47.00	a	47.00	a	100.00	c
1989	44.00		37.00	a	42.00		65.00		83.00		84.00		94.00	a	93.00		84.00		82.00	a	48.00	a	42.00		94.00	d
1990	49.00		46.00	a	63.00		82.00		79.00		89.00		-----	z	89.00		87.00		68.00	a	67.00		52.00		-----	z
1991	40.00		55.00		52.00		82.00		86.00		85.00		92.00		95.00		82.00	a	74.00		52.00		41.00	a	95.00	b
1992	40.00		45.00		51.00		67.00		86.00		90.00		82.00		86.00		79.00		89.00		48.00		38.00		90.00
1993	48.00		45.00		54.00		64.00		84.00	a	89.00		83.00		92.00	a	75.00	a	80.00		49.00	a	41.00		92.00	d
1994	29.00		50.00	b	57.00		81.00		89.00	a	85.00		87.00		86.00		84.00		73.00		57.00		46.00		89.00	c
1995	39.00		42.00		60.00		57.00	b	86.00		98.00		97.00		88.00		86.00	a	84.00		46.00		36.00		98.00	c
1996	41.00	a	47.00	a	55.00		64.00		84.00	d	-----	z	88.00	a	85.00		76.00		77.00		56.00		36.00		-----	z
1997	38.00		48.00		54.00		70.00	d	76.00		90.00		90.00		90.00		83.00	a	75.00		51.00	a	48.00		90.00	f
1998	44.00	a	53.00	a	64.00		78.00		84.00		80.00		93.00		90.00		88.00		73.00		56.00	a	57.00	a	93.00	d
1999	41.00		50.00		59.00		72.00		89.00	c	89.00		97.00	b	89.00		79.00	v	62.00		69.00		50.00		-----	z
2000	37.00		58.00		59.00		58.00		85.00		82.00	a	90.00	a	86.00		86.00		71.00		62.00		35.00	b	90.00	d
2001	39.00		32.00	a	57.00		82.00		78.00		92.00		92.00	a	96.00		85.00		74.00		69.00	b	46.00		96.00	d
2002	47.00		50.00		50.00		67.00		89.00		94.00		91.00	a	86.00		91.00		72.00		60.00		46.00		94.00	a
2003	51.00		47.00		60.00		85.00		81.00		83.00		93.00		92.00		84.00		81.00		54.00		44.00		93.00
2004	34.00		51.00		51.00		62.00		73.00		83.00		91.00		88.00		84.00		78.00	a	59.00		43.00		91.00	a
2005	37.00		48.00	a	56.00		65.00	a	72.00		95.00		95.00		95.00	a	90.00		69.00		60.00		40.00	a	95.00	d
2006	50.00		40.00	a	56.00		71.00		83.00		85.00		101.00		88.00	a	84.00	a	77.00		57.00		44.00		101.00	c
2007	41.00	a	45.00		60.00		-----	z	88.00		88.00		93.00		-----	z	90.00		74.00		56.00		37.00		-----	z
2008	-----	z	-----	z	51.00		73.00		73.00		86.00	a	91.00		91.00		-----	z	69.00		70.00		36.00		-----	z
2009	44.00		40.00		54.00		76.00	a	89.00		87.00	a	83.00	r	88.00		81.00		59.00		62.00		40.00		89.00	t
2010	40.00		40.00		74.00		75.00	b	80.00		85.00		88.00	d	91.00		73.00		75.00		56.00	b	38.00	a	91.00	i
2011	27.00		55.00		51.00		69.00		77.00		81.00	d	94.00		88.00		87.00		82.00		55.00		47.00		94.00	d
2012	48.00	f	44.00		70.00		73.00		82.00		90.00		94.00		89.00	a	85.00		68.00	a	55.00		49.00		94.00	h
2013	46.00		39.00	a	54.00	a	70.00	a	79.00		86.00		94.00		95.00		88.00		74.00		51.00		36.00		95.00	c
2014	37.00		24.00	n	47.00	j	66.00		85.00		86.00		92.00		85.00		79.00	y	-----	z	41.00	i	41.00	a	-----	z
2015	43.00	a	28.00	a	65.00		78.00		85.00		78.00	p	91.00		91.00	a	85.00	a	86.00	a	66.00		48.00		91.00	u
2016	44.00		57.00		55.00		62.00	d	95.00	a	92.00		93.00	a	88.00		83.00	a	75.00		71.00		42.00		95.00	g
2017	46.00		57.00	a	54.00		70.00		76.00	b	92.00	a	89.00		86.00		87.00		73.00		50.00		47.00	a	92.00	e
2018	49.00	a	48.00		53.00	a	74.00	c	89.00	a	86.00		91.00		93.00		83.00		68.00		46.00		46.00		93.00	f
2019	40.00		33.00		61.00		73.00	b	83.00		86.00		90.00		88.00		83.00		73.00		50.00		43.00		90.00	b
2020	37.00		48.00		57.00		57.00		79.00		88.00		88.00		89.00		77.00		82.00		79.00		50.00		89.00
2021	39.00		46.00		68.00		68.00		87.00		96.00		95.00		91.00		89.00		73.00		67.00		47.00		96.00
2022	37.00		37.00		51.00		55.00		81.00		92.00		93.00		87.00		90.00		80.00		70.00		39.00		93.00
2023	40.00		47.00		47.00		78.00		87.00		86.00		87.00		91.00		93.00		85.00		67.00		51.00		93.00
2024	49.00		53.00		65.00		69.00	o	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	39.85		44.23		54.53		70.88		82.95		88.02		91.50		90.18		83.70		75.09		58.20		43.29		93.79
S.D.	5.98		6.89		8.11		8.27		6.02		4.60		3.89		3.63		5.24		6.17		7.06		5.42		3.20
SKEW	-0.15		0.29		0.44		-0.10		-0.17		-0.11		0.37		-0.01		0.04		-0.11		0.39		0.59		0.70
MAX	55.00		60.00		74.00		92.00		96.00		98.00		105.00		99.00		97.00		89.00		79.00		60.00		105.00
MIN	21.00		28.00		41.00		47.00		71.00		76.00		82.00		78.00		68.00		59.00		46.00		32.00		88.00
YRS	105		110		111		111		106		110		109		110		111		113		111		108		68