SUPERIOR, WI

Average of Average Temperature (Degrees Fahrenheit)

(478349)

File last updated on April 24, 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	36.93	w	43.64	f	58.63	c	65.11	c	65.76		55.55	b	43.34	b	34.24	c	13.30	f	53.77	f
1910	14.31	e	9.98	e	35.63	d	40.15		46.69		63.17	c	67.39		64.63	a	56.63	d	48.05	c	26.15	c	13.95	b	40.56
1911	6.95		18.27	b	29.70	c	36.40		49.94		58.79	b	64.10	j	61.88	b	54.48	f	43.27	c	25.73	o	22.70	d	36.43	c
1912	-7.54	g	8.08	d	19.29	e	37.54	c	46.95	k	60.04	g	62.69	e	58.64	b	55.88	f	48.41	i	33.68	h	24.67	s	37.25	g
1913	7.92	g	6.72	e	17.38	e	40.94	f	46.79	g	60.40	d	62.30	f	64.05	k	55.90	f	43.55	j	35.90	d	29.52	g	30.10	h
1914	22.50	o	3.48	b	23.84	f	34.09	g	55.06	f	58.38	f	65.90	e	62.82	c	56.91	c	49.66	f	32.27	d	10.54	f	44.28	g
1915	10.79	g	20.70	f	26.67	d	45.15	d	44.70	f	53.81	f	60.63	e	61.36	c	56.80	b	44.95	c	31.36	i	20.48	g	49.26	f
1916	6.98	f	8.06	c	18.98	c	38.34	e	46.90	e	53.96	d	69.62	g	66.38	b	53.35		43.58	e	31.31	d	10.00	f	40.10	c
1917	4.04	f	1.66		23.52	c	32.83	c	45.35	e	51.00	b	65.17	d	60.34	b	54.52	d	36.44	e	36.35	f	7.17	g	41.20	c
1918	2.67	b	10.40	b	31.38	a	34.58		47.03		57.97	a	62.84		64.77		50.25		45.34		35.10		25.84		39.02
1919	19.29		15.07	a	25.17	a	38.52	b	48.94		55.59	b	66.69		65.45	b	55.05	h	40.56	d	23.87	d	9.30	c	37.13	a
1920	4.83	a	14.02	a	25.24		31.83	a	48.74		57.12		64.35		64.16		60.10		50.89		29.34	a	22.29	b	39.41
1921	18.74		19.59		25.97		41.02		48.69		62.15		72.28	b	64.10	a	58.88		46.05		25.03		18.26	b	41.73
1922	11.76	b	9.27		26.00		37.02		48.23		59.75		63.56		65.18	a	58.08		46.61		36.74	c	13.73	a	39.66
1923	13.71		6.38		15.60		35.62	i	48.13	a	60.55		64.85		62.08	a	57.70		45.79		36.60		26.66		39.82	a
1924	2.47		19.72		26.31		36.00		47.39		58.07		64.23		63.25	a	53.88	a	50.45		30.20		6.27		38.19
1925	12.52	b	16.95		26.40		41.12		48.45		60.28		66.98	b	68.35		58.09	a	36.60	b	29.18	b	15.29		40.02
1926	14.67	g	18.02		21.02		38.97	a	47.59	c	57.60	a	62.85	d	64.79		52.42		42.90	a	25.70		13.82	c	40.52	a
1927	10.45	a	17.13	a	31.16		38.55		43.98	a	57.28	a	63.10	a	60.82		57.71	a	46.42		27.95		7.03	a	38.47
1928	13.21		15.83		25.55	a	35.13		53.20	a	55.72		63.90		64.89		53.53		45.31		35.67		23.00	a	40.41
1929	-0.07	b	7.20		29.45		39.28		46.30	a	57.98		67.13		66.03		55.53	a	47.37		27.42		15.97	a	38.30
1930	4.22	a	20.70	a	25.94		39.83		48.43	a	64.43		66.89		69.29		56.67		41.69		32.05	b	21.42		40.96
1931	21.72	b	27.37	b	27.89		41.76	a	50.08	a	58.21	b	69.17	a	64.98	a	60.93	b	52.37		37.32		28.40		45.02
1932	20.12	b	14.45	a	18.20	a	36.72		49.83	d	58.76	a	66.18		67.90		57.43		43.24		28.25		15.08	a	39.68
1933	18.85	a	9.31	b	24.98		37.32		47.65		63.92		66.08		64.94		60.07		42.26		26.48		12.47		39.53
1934	18.19		10.38		22.37	a	38.25	b	53.03		57.82		65.57	a	62.60		53.07		48.81		35.90		13.93	b	39.99
1935	6.88	a	22.21		26.68		35.27		47.74		57.03		68.03		65.52		54.28		45.00		26.50		18.03		39.43
1936	5.73		-0.62		26.39		34.78		50.34		59.45		69.74		67.95		58.83		41.18		27.28	a	19.79	b	38.40
1937	4.65	a	13.02		23.92		37.28		48.74		60.87		66.89		70.76		56.76	a	43.15		29.05	a	14.97		39.17
1938	11.26		18.21		32.45	a	39.42		47.03		61.25	b	64.63	a	69.90		58.82		50.00		29.88		18.94		41.82
1939	16.79		8.64	c	24.10		36.07		49.90		56.02		67.73		66.55		57.77		44.84		35.63		28.67	a	41.06
1940	9.02		20.69		21.92		36.35		46.95		58.10		67.18	a	65.30	a	60.80		50.65		29.45		20.27		40.56
1941	15.85		15.68		24.90		42.82		53.37		59.62		71.13		66.71		58.52		47.74		33.67		25.58		42.97
1942	18.68		18.20		32.23		44.10		48.16		56.13		64.98		65.73		55.23		46.35		31.29	a	14.35		41.29
1943	7.77		15.88		18.45		38.90		49.97		57.38		70.21		67.10		53.23		47.15		28.00		19.82		39.49
1944	23.81		16.31		24.02		36.40		49.82		58.40		66.82		66.69		57.23		48.02		37.24	a	18.63	a	41.95
1945	13.09	c	17.67	d	35.12	c	37.91	b	46.74	d	57.61	b	65.88	b	66.92	a	56.13	c	45.75	c	31.67	g	14.55	i	44.28	b
1946	17.27	i	12.98	c	36.66	f	43.92	d	48.40	f	59.76	e	68.60	e	65.53	a	56.75	d	47.87	e	32.71	d	21.76	n	48.51	d
1947	16.26	l	13.31	g	27.60	e	37.15	d	46.78	m	-----	z	66.73	e	67.79	e	60.33	i	54.63	a	25.73	d	19.21	e	42.69	e
1948	9.19	d	13.33	b	25.88	b	42.38	a	52.62	a	61.25		66.20	a	67.03		61.85		47.58		33.53		18.39		41.60
1949	15.94		12.39		25.29		45.30		51.56		64.05	a	67.89		68.02		54.43		46.82		34.47		17.08		41.94
1950	4.48		14.80		19.48		31.50	d	45.19		58.48		61.35		58.48		55.57	a	47.00		25.14	a	10.56		36.00
1951	8.00		15.89		21.47	a	39.66	a	53.69		57.68		66.06		61.05		53.27		44.52		23.26	a	13.88	a	38.20
1952	10.88	b	21.89	b	24.68		45.65		52.50	h	61.47		67.50	b	64.76		57.67		42.83	a	33.40		24.39		41.37	a
1953	15.56		16.33	a	28.18		38.02		49.43	a	59.38	a	65.60		68.31		56.62	e	50.65	a	36.33		19.87		42.02
1954	8.45		28.00		25.42		39.85		45.82	a	60.83		66.48		65.02		56.12		44.26		35.62		22.74		41.55
1955	12.37	d	13.46		19.21		45.85		52.17	a	61.58		69.68	a	69.97		56.77		47.55		24.78		12.35		40.48
1956	14.35		13.69		22.50		36.38	b	49.42		59.30		61.08		62.24		53.40		51.61		31.33		19.18	a	39.54
1957	5.24		12.98	a	23.48		40.25		49.47		56.62		66.66		65.80	a	54.93		44.55		32.10		20.94		39.42
1958	18.29		11.61		27.73		41.03	a	51.63	a	55.12		63.32		63.97		58.13		47.44		32.70		9.60	a	40.05
1959	4.47		12.16		27.95		40.78		51.74		61.33		67.28	a	67.10		57.88		42.76		22.53		26.74		40.23
1960	13.31		14.95		17.82		40.92		47.13		58.88		66.02		67.27		57.82		46.73		34.32		15.77		40.08
1961	10.55		22.27		32.11		36.98		49.94		61.22	a	65.79		68.84		57.37		48.29		32.38		15.98		41.81
1962	6.92		12.11	a	25.67	b	36.98		49.00		56.17		61.97		63.24		54.87		47.81		35.90		17.77		39.03
1963	3.23	a	9.32		28.79		40.77		49.88	a	59.00		68.92		63.48		58.20		54.21		36.28		11.11		40.27
1964	19.16		18.71		24.00		37.60		53.27		57.23		66.63		60.90		-----	z	46.76		32.63		11.48		38.94	a
1965	7.35		8.95		18.03		39.25		50.14	c	55.73		60.92	a	62.47		50.67		46.82		30.53		24.39		37.94
1966	1.97		-----	z	28.79		36.28		48.02		60.80		68.66		63.89		55.20		45.22	b	27.80	b	16.40	a	41.18	a
1967	14.40	b	5.68	c	27.65	a	38.93		46.68		-----	z	-----	z	61.55	t	58.33		46.66		30.32		20.08		32.08	c
1968	13.03		13.98		34.92		43.73		47.68		56.58		66.14	b	-----	z	58.65		49.55		33.75		17.47		39.59	a
1969	11.18		17.59		25.42		40.22		51.06		53.55		62.63		70.10	a	58.72		41.92		31.05	a	21.95		40.45
1970	5.52		11.96	b	-----	z	37.63		45.55		58.12	a	68.97		67.53		56.15		45.23		30.92		15.15		40.25	a
1971	4.63		13.00	b	24.66		38.93		46.48		57.25		63.44		63.66		57.40		49.62	a	31.95	a	16.56		38.97
1972	2.65	a	8.88		19.08		33.58		46.10		55.64	a	61.53	a	62.42		54.08		41.63		30.93		10.95		35.62
1973	14.18		17.07		32.40		39.18		45.45		57.33		66.81		65.73		56.57		49.63		32.75		16.35		41.12
1974	9.89		9.81	l	23.05	a	36.15		44.76		58.63		66.28	a	62.16		51.45		43.77		33.23		23.88	a	41.21	a
1975	13.74		15.95		21.88	a	33.76	a	52.34		56.60	a	71.79		65.12	a	54.28		47.13		35.07		15.19		40.24
1976	8.50		23.74		-----	z	42.85		50.26		61.37		67.78	a	65.98	c	56.98	a	40.15		25.82		5.29	b	40.79	a
1977	1.12	a	18.61	a	30.73		39.67		51.71		56.30	b	64.69		59.42	a	52.60		44.98	b	28.97	a	13.88	a	38.56
1978	6.50	c	11.02	a	25.56		36.07		48.40		59.68		64.17	b	63.63	a	59.16	a	47.24		28.08		10.97	a	38.37
1979	1.00	a	3.23		23.73	a	34.28	a	44.71		56.07		64.06		61.58		57.97		43.00	a	30.50		23.60		36.98
1980	11.78	a	14.21		22.40		40.38		52.66		58.85		67.92		63.84		54.68		42.10		32.10		14.45		39.61
1981	14.44		17.21		30.76		39.67		48.03		56.82		-----	z	-----	z	56.70	b	44.45		37.63		18.29		36.40	b
1982	0.21		14.71	d	25.11		37.07	b	46.70	a	55.33	f	64.92	a	61.76		57.21	a	46.13	a	27.41	a	22.24	b	36.68	a
1983	15.67	a	23.50	a	27.19		36.05	a	45.11	c	55.59	a	69.02	a	71.90		56.78		45.44		31.44	c	2.42	a	40.01
1984	8.61	c	25.18	a	20.73		38.60		48.73	a	55.87	d	66.45	b	66.53		53.32	b	44.77	a	29.71	b	14.00	d	39.37
1985	10.62	b	13.69	b	33.09	b	39.02	i	51.53	l	55.67	a	65.66	b	61.31		53.67	c	44.67	a	24.11	b	4.27	e	36.67	b
1986	14.03	b	13.09		29.12	b	38.88	d	49.00		58.92		65.31		64.22	a	54.50		45.87	a	27.65		21.72	a	40.19
1987	17.95	a	26.43		31.98	a	44.21	a	50.15		62.10	a	67.98	c	65.97	a	59.42		42.26		34.45	a	24.21	b	43.92
1988	8.42		10.19		27.88	a	40.85	c	51.80	a	63.36	a	70.62	a	66.03	a	57.21	a	41.58		32.84	a	18.17	b	40.75
1989	17.16		7.02	b	20.79		37.02	b	48.77		55.88		67.32	a	66.79		58.05		44.72	a	26.62	a	7.17	a	38.11
1990	21.94		18.02	a	28.35		39.47		46.27	a	60.32		-----	z	65.69		59.27		44.20	a	34.20		16.60		39.48	a
1991	8.87		22.17	a	26.69		40.37		48.77		57.43		64.92		68.50		56.18	b	42.90		23.77		18.92	a	39.96
1992	18.16		23.81		27.87		37.12		51.53		56.20		61.18		63.29		56.33		43.66		29.80		19.63		40.72
1993	14.40		17.23		26.90		36.45		48.62	a	54.50		62.63		65.95	a	50.55	b	41.56		27.84	a	19.84		38.87
1994	0.98		9.56	c	30.60		40.25		50.93	b	59.52		64.56		63.40		58.92		48.32	a	35.70		22.90	a	40.47
1995	16.78	a	14.46		27.77	a	34.11	b	50.27		57.91	a	64.45		66.71		55.97	a	45.85		23.17		14.45	b	39.33
1996	5.59	b	12.48	a	21.25	a	34.98	a	45.91	d	-----	z	62.48	b	65.87		58.07		46.44		25.32		14.58		35.72	a
1997	10.26		17.71		25.23		36.94	d	45.53		60.12		63.42		63.90		60.03	a	46.31	b	30.06	c	27.58		40.59
1998	20.21	b	30.77	b	29.21		44.18		52.80	a	57.20	g	69.93	h	69.35		63.04	b	49.60	a	37.00	a	23.37	a	41.95	b
1999	11.02		24.13	a	30.84		40.33		51.55	c	59.25		68.78	b	65.29	b	59.60	y	41.57	q	37.70	c	23.65		41.25	b
2000	15.06		24.21		34.50		38.53		51.15		57.14	b	65.05	a	67.81		57.75		47.92		32.98		8.66	c	41.73
2001	20.67	a	12.26	a	28.50		40.15		50.92		58.88		65.75	a	68.90		58.03		46.19		42.25	b	26.19		43.23
2002	21.45		25.61	a	22.60		38.17	a	47.27		59.48	a	70.00	a	64.91	b	59.27		40.10		29.92		24.18		41.91
2003	13.55	a	11.21	b	23.76	b	38.12	b	47.77		56.22		68.63		68.81	g	58.38		46.08		31.03	a	23.90	a	38.06	a
2004	7.02	a	20.55	a	31.72	b	40.50	a	45.85	a	56.93	a	64.83	a	61.04	d	59.35		47.77	a	37.08		18.55		40.93
2005	11.48		23.76	a	26.68		40.57	a	47.05		58.73		67.38	a	64.36	b	61.07		48.37		34.35		22.08	a	42.16
2006	27.52		17.78	a	31.97		43.47		50.53		62.37		73.35		68.38	a	57.60	a	42.23		34.82		27.37		44.78
2007	19.20	a	12.48	a	30.89		-----	z	49.76		60.37		68.19		-----	z	58.95		49.81		33.32		16.77	a	39.97	b
2008	-----	z	-----	z	26.24		39.43		48.53		61.02	a	66.06		66.71		-----	z	47.34		31.88		12.05	a	44.36	c
2009	6.02		16.09		25.82		40.14	a	50.77		57.86	a	64.96	r	62.84		61.92		42.84		39.79	a	17.26		38.30	a
2010	14.82		19.95		37.08		44.80	b	51.44		59.47		70.78	d	67.94		54.07		48.34		33.75	b	17.18	a	43.30
2011	11.11		18.52		27.79		39.90		46.29		53.40	d	70.10		69.48		56.77		48.35		35.32		25.61		41.89
2012	23.16	f	26.41		37.26		41.33		52.71		62.17		71.34		67.73	a	56.92		42.53	a	32.62	a	20.35		46.49	a
2013	13.52		17.27	b	22.46	c	34.05	a	44.42	a	55.58		64.94		68.29		59.87		47.05		30.32		8.90		38.89
2014	5.10		5.21	n	22.60	k	35.17		47.44		55.37		65.77		63.90		64.70	y	-----	z	19.76	i	23.55	a	42.33	e
2015	15.62	a	8.87	a	31.68		41.85		48.29		54.54	p	71.19		66.12	b	62.67	a	48.45	a	39.07		29.71		42.14	a
2016	16.18		21.82	a	32.18		36.40	d	50.92	a	60.27		68.35	a	69.77		61.34	a	49.50		42.17		19.13		44.00
2017	18.97		25.70	a	27.50		40.35		48.38	b	60.52	a	66.40		64.18		60.88		49.39		29.87		13.98	a	42.18
2018	13.52	a	13.30		28.12	a	33.22	c	52.53	a	57.50		69.82		67.92		59.97		42.71		25.62		23.71		40.66
2019	10.23		12.36		26.53		39.66	b	47.11		56.65		69.87		66.95		57.20		44.87		28.42		20.13		40.00
2020	20.26		19.40		32.39		37.33		48.58		61.07		70.15		68.39		56.62		41.48		37.07		23.02		42.98
2021	20.81		11.48		35.61		40.93		51.69		65.75		70.02		70.56		61.75		51.97		33.80		22.27		44.72
2022	8.29		10.54		26.95		34.45		48.39		60.68		66.65		66.61		60.32		48.26		34.10		17.06		40.19
2023	20.48		19.80		26.27		37.62		48.34		57.52		66.26		67.23		63.15		48.89		35.05		32.45		43.59
2024	20.79		28.76		32.87		43.00	g	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	27.47	i
Period of Record Statistics
MEAN	11.94		15.54		26.58		38.72		48.90		58.56		66.42		65.44		57.07		45.91		31.57		18.17		40.46
S.D.	6.13		6.15		4.62		3.09		2.36		2.57		2.73		2.76		2.73		3.28		4.28		5.92		1.87
SKEW	0.01		0.09		0.03		0.15		0.09		0.15		0.08		-0.20		-0.17		-0.09		-0.03		-0.24		0.22
MAX	27.52		30.77		37.26		45.85		53.69		65.75		73.35		71.90		63.15		54.63		42.25		32.45		45.02
MIN	-0.07		-0.62		15.60		31.50		43.98		51.00		60.63		58.48		50.25		36.44		22.53		2.42		35.62
YRS	104		109		110		109		106		106		107		109		106		110		109		106		79