IRON MTN-KINGSFORD WWTP, MI

Average of Average Temperature (Degrees Fahrenheit)

(204090)

File last updated on April 26, 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
1899	-----	z	8.17	b	16.87		44.13		53.35		62.53		67.03		67.03	b	52.48		49.37		38.97		19.61		43.60	a
1900	20.34		8.96		20.37		47.40		54.47	b	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	30.31	g
1901	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	54.50	j	47.82		29.55	b	16.81	d	31.40	i
1902	16.15		18.11	a	35.22	b	41.84	a	53.98		58.42	d	67.77		62.23	c	54.48	b	44.81	b	34.98	c	19.36	b	42.28
1903	14.13	a	16.76	a	34.38	a	40.65		54.03		61.00	a	66.40	a	60.69		56.16	b	46.56		27.70		12.66		40.93
1904	8.90		4.48	a	24.66		36.27		53.43	a	62.03	a	65.27	a	61.18		54.63		44.17	a	34.87		16.83	a	38.89
1905	9.40		11.36		27.89		39.83		50.63		61.16	a	64.66		65.52		59.89	b	44.79	b	32.78	c	23.32	a	40.94
1906	21.45	a	14.62		18.68		44.83		50.66		62.43		66.31		67.03		61.83		44.81		33.00	c	22.50	e	42.35
1907	10.93	a	14.50		29.42		31.62		44.20	a	64.78		66.25	a	64.29		57.20		43.61	c	31.48		23.38	a	40.14
1908	19.89		17.80	a	26.50	a	42.38		54.53	b	62.92	f	69.50	c	66.02		65.35		49.07	c	33.64	a	18.82	a	42.14	a
1909	17.47		20.21		25.53	b	35.47	a	55.73	g	66.57	b	66.93	a	67.91	c	58.20		45.22	d	36.64	a	21.80	f	44.02	b
1910	14.96	e	13.64		40.50	a	44.15	f	50.40	b	68.95	j	74.25	s	66.00		57.62		50.95	a	30.16	a	18.52	d	38.08	c
1911	15.98	b	22.81	b	29.70	i	43.36	b	59.08	a	68.70		68.61		63.98		57.35		44.68		29.00		27.35	a	45.54	a
1912	-1.90		12.62	a	22.74		42.95		54.06		61.81	a	67.37	a	61.34		58.70		48.24		34.31	a	23.87	a	40.51
1913	17.20	c	10.11		23.02		44.78		52.74		66.95		66.98	b	68.40	b	56.82	b	45.48	a	39.05	a	31.93	a	43.62
1914	21.76		10.07		27.39		39.18		57.95		62.32		70.55	a	65.29	b	58.16	a	51.91	c	32.20		16.32		42.76
1915	12.92		24.54	b	27.39		51.05		50.13		58.67	a	65.17	a	61.15		59.29	a	47.65		34.13		22.02		42.84
1916	15.40		13.19		22.26		40.75		53.03		59.37		74.52		68.27		56.27		46.26		31.53		16.43	b	41.44
1917	10.40		6.15	b	25.98	a	37.23		48.65	a	59.00		69.19		61.90		55.70		37.97		35.17		12.31		38.31
1918	5.26		12.06	a	34.35		40.07		56.11		61.22		67.47		66.94		52.28		47.90		36.10		25.69	e	42.12
1919	20.50	c	20.30		28.08	a	42.66	b	53.03	a	69.53	a	72.00		65.44		59.57	a	43.90	a	29.21	f	10.27		44.12	a
1920	7.39		15.20	b	28.19		36.07		51.90		65.67	a	65.61		65.10		61.67		56.24		-----	z	29.92		43.91	a
1921	20.42	a	19.07	a	26.97	a	51.90	a	59.20	a	71.12	a	76.03		66.76		62.29	a	47.37		27.68		19.82		45.72
1922	12.89		14.00		27.95		40.62		60.45		64.30		66.19		66.48		61.67	a	47.11		36.10		19.22	d	43.08
1923	15.73		10.00		19.87		39.07		54.18		67.18		68.77		63.06		58.70		45.05		36.28		30.22	a	42.34
1924	5.84	b	20.43		27.74		40.00		46.13		60.58		64.24		63.47		54.10	a	52.19		33.37		12.56		40.06
1925	14.83	a	20.32		30.56		47.42		50.75	a	66.12		67.19		67.74		60.70		38.03		31.75		19.90		42.94
1926	17.47	a	18.98		21.69		37.83		55.06		59.40		67.06		64.47		54.30		43.05		27.00		15.02		40.11
1927	12.65		19.57	a	33.77		42.07		49.05		59.83		64.45		60.95		62.13		49.52	a	32.86	b	16.69	d	41.96
1928	20.68	c	17.40		26.55		36.70		54.92		58.70	b	67.23		65.72	a	50.10		47.24		34.52		24.34		42.01
1929	5.67	a	10.21		30.72	a	43.25		50.32		60.21	a	66.94		64.29		57.87		46.77		28.83		18.15		40.27
1930	10.10	a	22.20		27.63		43.28		55.63		64.95		66.87	a	67.56		59.27		45.53		35.83	a	21.48		43.36
1931	21.90		27.66		28.65		43.29	a	54.30	a	66.52	a	70.61		63.68		64.50		51.26		39.25		28.94		46.71
1932	22.90	e	20.57		21.61		39.93		54.02		65.03		68.56		67.26		56.97		43.40		27.86	a	18.88	a	42.25
1933	22.26		12.85	a	24.71		39.70		55.06		69.82		69.63		65.45		62.37		43.10	a	26.27	b	16.15		42.28
1934	22.18		10.86		21.69		38.85		59.47		66.52		68.53		62.55		56.28		48.83	a	34.80		16.72	b	42.27
1935	12.13		17.21		28.08		39.68		49.18		58.40		72.00		66.68	c	55.00		46.03		29.80		18.90	a	41.09
1936	11.25	a	3.12	a	28.48	b	35.57		57.77	a	60.92		71.05		65.57	c	60.60		42.37		27.41	b	22.50		40.55
1937	11.89		15.91	a	22.23		37.81	a	53.97	a	62.00		68.07	b	68.70	a	53.26	e	44.76	d	36.85		17.03	b	41.04
1938	12.85	a	20.77		32.95		43.55		54.42		62.47		67.98		67.82	a	55.58		49.65		32.62		19.81		43.37
1939	17.38	a	10.88		23.85	a	37.60		55.90		64.03		68.08		65.43	a	58.30		45.19		33.87		27.26		42.31
1940	11.43	a	19.05	a	20.34		36.33		50.29		62.58		67.06		64.03		59.30		47.92		31.27	b	22.71		41.03
1941	17.60		18.46		23.19		46.87		57.95		66.32		68.58		63.69		59.33		46.15		34.60		26.56		44.11
1942	17.19	b	16.95		30.77		47.55		51.52	a	61.97		65.00		64.31		54.10		46.52		31.62	a	16.39		41.99
1943	11.18		16.96	a	20.08		37.62		51.95		65.00		69.40		65.50		51.85		45.61		29.11	c	20.89		40.43
1944	24.07	b	18.89	b	22.53		37.08		56.39		63.08		66.40		66.32		56.69	a	46.16		36.88		18.53		42.75
1945	11.45	a	17.11		37.27	a	40.95		47.29		58.15		63.44		64.34		55.70		43.21		30.63		16.16		40.47
1946	16.08	a	14.75		37.74		42.62		51.52		61.58		66.10		62.29		55.47		49.60		33.45		19.74		42.58
1947	17.83	a	16.36		25.65		37.47		48.18		59.88		68.44		72.39		58.33		55.85		28.53		20.23		42.43
1948	8.37		14.83		24.52		44.30		52.02		62.18		68.15		66.74		61.18		45.45		35.23		20.82		41.98
1949	19.82		17.41		26.47		44.53		54.66		68.43		69.48		67.44		55.23		50.21		32.25		19.92		43.82
1950	12.92		15.70		22.45		32.30		51.47		62.77		64.29		60.32		56.33		50.18		27.35		13.81		39.16
1951	11.82		26.25	x	24.92		40.32		57.26	f	60.02		66.76		61.42		54.67		45.80	a	25.25		18.03		40.90	b
1952	15.66		20.48		24.27		45.31	a	53.11		63.95		68.11		64.44		57.90		40.23		34.33		25.53		42.78
1953	19.92		17.96		28.79		38.45		53.77		63.52		66.73		66.90		57.18		51.03		37.35		23.06		43.72
1954	13.52		25.88		23.90		41.32		47.06		65.08		65.81		63.11		54.28		45.18		35.17		21.39		41.81
1955	14.02		16.18		23.76		47.65		56.90		62.97		72.34		68.90		56.82		47.68		27.85		15.11		42.51
1956	17.60		17.02		22.76		38.38		51.58		64.23		62.94		63.95		52.82		51.94		36.33	i	21.29		42.23	a
1957	7.87		18.48		26.79		42.43		52.90		62.65		68.66		64.65		54.45		45.18		33.13	g	21.24		42.30	a
1958	19.48		14.88		29.34		42.90		51.45		57.57		65.16		64.44		57.03		47.87		33.63		10.45		41.18
1959	7.98		12.45		25.69		40.60	j	60.95	t	64.70		67.27		68.65		57.55		42.40		23.62		25.87		39.62	b
1960	16.48		17.88		18.61		42.05		52.40		60.18		64.76		65.15		56.87		46.08		34.95		17.11		41.04
1961	13.15		22.98		29.98		38.35		50.29		62.18		66.38	a	65.69		57.65		48.45		32.72		17.97		42.15
1962	10.76		12.04		28.31		40.27		57.94		61.40		63.79		64.32		53.47		47.74		32.67		18.60		40.94
1963	5.89		9.39		28.23		42.97		51.87		64.13		67.66		63.02		55.85		55.18		37.97		14.21		41.36
1964	20.40		19.84		25.90		42.77		58.05		63.05		68.87		61.84		55.00		45.71		35.95		16.32		42.81
1965	12.47		13.22	a	22.15		38.53		56.69		60.90		63.37	a	63.84		52.65		47.44		32.43		26.00		40.81
1966	10.05		19.89		31.35		38.60		48.68		65.53		71.23		63.97		56.63		45.13		31.12		20.76		41.91
1967	17.32		10.62		27.26		41.70		47.95		63.48		65.18		62.63		56.45		45.18		29.32		20.73		40.65
1968	14.03		15.66		34.37		44.43		50.98		62.40		66.68		64.61		59.03	a	49.19		32.83		19.65		42.82
1969	16.03		18.77		24.42		43.42		53.98		55.93		66.18		68.89		57.27		43.48		31.47		21.98		41.82
1970	9.68		15.18		24.84		43.13		52.55		64.27		69.50		65.56		57.92		48.61		32.55		19.16		41.91
1971	9.11		16.23		23.68		40.32		50.58		66.38		64.27		63.32		59.17		52.95		32.80		21.16		41.66
1972	8.65		11.98		22.53		36.02		56.87		60.80		65.44		65.31		54.88		42.40		31.40		15.05	b	39.28
1973	18.97		18.88		35.82		40.80		49.85		63.38		68.05		68.13		56.85		51.71		32.90		18.60		43.66
1974	13.66		13.89		26.32		42.92		50.32		59.77		68.71		64.52		51.68		45.63		34.17		24.71		41.36
1975	16.23		18.82		23.69		36.07		59.06		64.13		70.18		65.92		53.12		48.98		37.22		19.16		42.72
1976	11.66		23.88		26.84		45.00		51.89		66.43		67.85		65.76		56.28		41.27		26.05		9.74		41.06
1977	5.34		18.84		33.85		46.90		62.42		61.67		70.19		62.34		56.60		45.97		32.17		17.95		42.85
1978	12.80	a	13.73		25.34		38.17		56.73		62.33		65.89		66.21		59.88		45.98		31.92		15.23		41.18
1979	6.98		8.64		27.03		37.65		50.35		61.68		68.19		63.94		58.83		42.92		30.50		25.06		40.15
1980	15.35		14.90		24.85		43.68		57.97		61.83		69.02		67.19		56.40		41.44		33.52		17.39		41.96
1981	14.76		22.05		32.16		43.98		51.98		63.23		67.40		66.05		54.92		42.84		36.35		20.97		43.06
1982	5.63		15.62		26.30	c	37.10		59.48	b	56.87		68.18	a	63.26		56.27		47.78	a	32.52		24.24	b	41.10
1983	19.70	a	25.77		29.53		38.77		48.90		63.25		72.65		70.31		59.82	b	45.31	d	32.87	g	10.13	d	44.01	a
1984	7.45		26.52	c	22.69	b	44.29	a	50.13		64.76	a	66.68	a	68.18		54.38	b	48.57	a	30.95	a	18.69		41.94
1985	10.19		13.09		31.33	a	43.92		56.03		59.03		65.79		63.61		55.70		45.06		26.47		8.94		39.93
1986	13.33	a	14.38		27.52	b	46.18		56.66		61.10		69.16		62.21		57.00		44.34		27.03	a	22.00		41.74
1987	-----	z	24.25		31.89		46.55		55.72	a	66.73		69.92		65.45		57.98		39.43	a	33.81	a	24.24		46.91	a
1988	9.42		11.20	a	26.58		41.67	a	56.98		66.15		69.52		69.10		56.75		39.84		33.18		17.48		41.49
1989	18.55	a	9.30		20.10		38.48		52.98		61.03		69.23		66.50		56.42		46.29		26.17		8.16	c	39.43
1990	21.57	c	16.82		29.53		44.37		49.26		62.85		65.89		64.92		56.62		42.71		34.30		18.18		42.25
1991	8.08		19.93		29.27	a	44.57		59.08		67.35		67.65	a	68.82		55.80		43.53		27.80		20.65		42.71
1992	18.52		20.36		26.90		39.12		-----	z	60.38	a	62.19		62.73	a	55.42		44.47		29.58		20.27	a	39.99	a
1993	13.76		16.04		28.97	a	38.15		53.15		60.33		67.82		67.52	a	52.10		42.31		28.10	a	21.00	a	40.77
1994	1.35		10.20	a	29.92		40.75		53.84		65.33		66.37		63.77		59.43		48.40		35.23		26.02		41.72
1995	18.16		16.95		30.15		35.68		52.21		68.97		68.40		70.06		55.60		47.00		23.38	a	14.74		41.78
1996	8.40		11.98		20.92		36.23		50.19		63.88		64.40	a	66.81		58.98		45.08		27.48		19.61		39.50
1997	12.53	a	18.98		25.23	a	39.18		46.79		65.97		66.63		62.30	a	58.95		45.35	a	29.50	a	27.31		41.56
1998	18.45	a	29.69	a	29.40		45.47		60.60		62.64	a	68.89		68.73		61.92		47.81		36.10		24.52		46.18
1999	11.19		21.93		29.85		44.32		56.65	a	64.95		71.19		65.58		57.65		42.87		38.53		20.27		43.75
2000	11.77		19.69		35.74		39.88		56.50		62.07		65.77		65.85	a	56.05	a	48.63		33.58		11.11		42.22
2001	19.75	a	15.33	a	27.18		44.72		56.65		64.18		67.90		70.16		57.22		44.74		41.08		27.56		44.71
2002	23.73		24.57	a	22.00	a	39.98		48.52		65.25		72.92	a	67.13		60.70		39.43	c	29.50		23.53		43.10
2003	12.52	a	9.50		25.19		38.78		51.98		62.20		68.35		68.79		58.93		44.79		32.18		24.02	b	41.44
2004	8.06		17.97		29.09	b	39.90	a	51.10		59.84	b	65.53		62.11		61.93	a	46.95		34.60		17.85	a	41.24
2005	11.48		23.21		24.98		44.73		51.35	a	69.12		70.44		68.17	a	62.78	a	49.16		32.45		19.94		43.98
2006	23.79		16.36		29.21		46.93		55.84		64.05		71.79		66.63		55.28		42.06		34.98	a	25.77		44.39
2007	18.58		12.25		30.60		39.87		56.87	a	66.72		68.95		-----	z	60.88		51.16		31.50		17.97		41.39	a
2008	16.16		11.45		23.34		40.93		51.00		63.90		68.92		66.50		59.83		46.92	k	32.05	a	12.82		40.63	a
2009	5.24		18.82		27.03		40.38		52.44		61.58		63.15		64.16		61.35		41.24		38.45		16.58		40.87
2010	17.73		20.79		35.90		47.43		57.94		63.53		70.58		69.68		54.92		48.02		33.98		18.71		44.93
2011	12.13		18.54		27.65		38.37	c	52.71		62.37		72.08		68.58		56.93		48.31		35.13		23.74		43.04
2012	19.47		25.64		41.63		42.90		58.19		66.32		73.02		66.76		56.00		44.15		33.02		24.98		46.01
2013	16.48		14.36		23.56		36.07		53.55		63.00		68.50		66.76		58.53		45.95		30.35		11.23		40.69
2014	4.39		5.93		17.40		36.90		53.89		64.23		65.03		65.68		57.48		44.52		24.65		21.97		38.51
2015	12.08		4.23		27.29		41.82		55.13		61.45		68.61		65.77		63.85		46.84		37.73		30.56		42.95
2016	16.34		21.31		33.24		38.77		55.27		64.28		69.63		70.10		61.77		48.31		40.37		19.60		44.91
2017	18.77		24.27		27.11		43.42		51.61		64.50		68.26		63.81		61.18		48.94		30.70		15.95		43.21
2018	14.18		14.50		26.92		32.87		61.00		64.45		70.39		68.65		59.92		41.35		26.80		23.77		42.07
2019	11.08		11.52		23.39		39.53		50.09	b	62.85		70.76		64.61		60.43		44.31		28.05		21.08		40.64
2020	21.31		19.41		32.21		37.40		52.44		65.08		71.52		67.84		56.20		39.50		37.63		24.37		43.74
2021	21.03		11.50		33.45		43.38		52.69		67.77		68.58		69.77		60.18		53.27		32.97		22.89		44.79
2022	8.94		12.39		26.50		37.40		56.00		64.35		68.85		67.61		59.88		46.11		35.65		20.35		42.00
2023	23.10		21.21		27.48		40.30		54.94		65.35		67.53		65.52		61.17		46.98		33.68		30.56		44.82
2024	20.19		29.31		33.08	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	27.53	i
Period of Record Statistics
MEAN	14.23		16.47		27.19		41.07		53.52		63.24		67.90		65.59		57.49		46.24		32.44		20.00		42.06
S.D.	5.29		5.26		4.67		3.72		3.51		2.89		2.49		2.44		2.91		3.47		3.71		4.87		1.62
SKEW	-0.27		0.01		0.47		0.17		0.09		0.13		0.36		0.06		0.16		0.25		-0.19		-0.03		0.35
MAX	24.07		29.69		41.63		51.90		62.42		71.12		76.03		72.39		65.35		56.24		41.08		31.93		46.71
MIN	-1.90		3.13		16.87		31.62		44.20		55.93		62.19		60.32		50.10		37.97		23.38		8.16		38.31
YRS	123		124		124		122		120		121		122		122		123		123		119		123		107