IRON MTN-KINGSFORD WWTP, MI

Average of Maximum Temperature (Degrees Fahrenheit)

(204090)

File last updated on April 19, 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	18.74	a	27.48		56.27		64.87		75.10		79.23		77.83	a	63.70		59.84		47.13		26.58		54.25	a
1900	28.26		20.21		31.48		59.57		67.97	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	41.50	g
1901	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	63.65	j	58.45		37.36	b	24.79	c	40.20	i
1902	25.61		27.89	a	46.07	b	53.60		66.39		69.88	d	80.35		73.87	a	64.43	b	55.69	b	41.93	c	27.00	b	52.73
1903	23.20	a	27.00	a	43.87	a	51.23		65.74		73.93	a	77.73	a	70.13		67.21	a	57.87		36.17		20.13		51.18
1904	17.29		15.71	a	32.71		46.40		65.39		73.43		76.84		72.16		64.97		52.45		43.10		25.13		48.80
1905	19.03		22.00		38.26		50.13		61.74		72.48	a	75.13		77.26		71.25	b	54.27	a	39.31	a	31.84		51.06
1906	30.13		25.04		29.29		56.53		62.48		73.03		78.29		78.03		72.57		54.55		38.93	c	31.27	e	52.51
1907	20.30	a	27.14		39.74		40.53		55.55		77.73		79.53	a	77.45		66.43		55.97	b	39.40		32.67	a	51.04
1908	30.03		26.43	a	36.97	a	53.83		65.86	b	76.21	f	82.21	c	79.61		79.07		59.93	c	42.60		26.61		53.01	a
1909	26.84		27.64		35.32		44.38	a	67.04	g	80.07	b	79.60	a	79.96	c	69.93		55.81	d	45.21	a	29.12	f	54.48	b
1910	25.39		24.79		54.17	a	56.21	f	62.69	b	83.75	j	88.50	q	78.00		69.80		62.20	a	37.66	a	28.17	a	49.21	c
1911	29.20	a	33.41	a	39.03		57.07	b	73.10	a	82.40		82.06		76.77		68.53		53.68		39.30		35.77		55.86
1912	7.84		22.79		34.77		55.13		66.81		75.93	a	79.23	a	71.71		69.80		60.61		43.77		33.30	a	51.81
1913	26.43	a	19.79		34.19		57.43		65.77		80.67		79.38	b	81.67	a	68.66	a	55.58		48.73		42.07	a	55.03
1914	30.48		21.18		37.45		51.53		71.58		74.57		82.83	a	77.31	b	70.40		63.61		39.90		23.35		53.68
1915	23.13		32.54		37.90		63.73		61.58		70.83	a	76.57	a	72.90		71.21	a	57.74		40.70		29.68		53.21
1916	25.39		22.93		32.94		50.07		65.61		69.70		87.61		80.45		65.97		56.61		39.00		24.37	a	51.72
1917	20.03		17.04		35.37	a	46.70		60.70	a	71.33		81.90		73.74		66.87		45.16		44.77		20.19		48.65
1918	12.52		21.89	a	44.71		54.23		68.48		74.43		78.90		78.32		63.37		57.58		42.73		30.92	e	52.34
1919	28.68	c	27.96		38.03		53.76	a	66.71		79.97		83.45		76.35		70.24	a	52.43	a	36.46	f	19.06		54.24	a
1920	16.84		24.24		38.35		46.57		67.61		78.40		77.42		77.32		76.30		68.23		-----	z	41.35		55.69	a
1921	31.58		28.29		35.94		65.00		71.07	a	83.10	a	86.52		78.87		72.90	a	56.48		34.30		27.52		55.96
1922	23.84		24.25		38.90		50.90		72.81		76.67		75.81		79.29		73.90	a	57.26		41.50		27.00		53.51
1923	24.68		22.29		31.32		51.60		69.71		79.87		80.94		74.87		70.17		58.61		46.27		38.33	a	54.05
1924	17.16		28.79		36.23		50.57		57.61		74.03		77.00		74.81		65.24	a	64.74		42.30		22.06		50.88
1925	23.55		30.29		42.61		62.10		65.13	a	78.50		79.45		80.39		73.30		46.81		41.00		28.19		54.28
1926	29.03		28.43		32.42		50.53		71.06		72.13		79.42		74.97		63.83		52.94		33.40		24.52		51.06
1927	22.00		31.00		43.42		55.00		60.00		72.77		76.81		74.26		75.13		61.67	a	41.62	a	29.70	a	53.61
1928	29.69	b	27.45		37.39		47.63		68.19		70.57	b	78.16		77.10	a	63.60		56.32		41.53		31.65		52.44
1929	15.20	a	20.82		40.94		55.70		62.45		72.10	a	78.97		76.48		69.43		57.32		36.97		24.90		50.94
1930	18.61		32.14		38.10		56.43		67.32		76.90		79.17	a	81.58		72.57		54.90		45.87		28.77		54.36
1931	30.19		37.43		36.77		56.55	a	69.27	a	78.76	a	83.61		75.90		76.27		61.13		47.67		34.97		57.38
1932	29.77	e	30.24		30.19		51.77		66.35		77.23		80.77		79.48		68.77		51.71		36.03		26.71		52.42
1933	31.48		23.19	a	33.16		49.83		66.71		82.60		82.65		78.94		74.57		52.63	a	33.79	a	23.97		52.79
1934	29.84		21.36		31.13		48.13		74.00		79.60		80.58		75.32		65.93		59.35		41.50		24.69	b	52.62
1935	21.65		28.61		37.84		52.00		62.19		69.60		84.06		77.11	c	67.37		56.32		36.87		26.10		51.64
1936	20.10	a	14.66		38.03	b	46.37		72.07	a	75.33		85.58		77.41	b	72.23		52.71		35.79	a	31.10		51.78
1937	24.06		26.78	a	33.71		47.63		69.81		75.53		80.17	b	81.67	a	65.85	c	52.50	c	43.43		26.73	a	52.32
1938	24.17	a	31.93		45.39		55.87		67.10		75.10		79.97		80.30	a	66.90		62.06		40.87		27.90		54.80
1939	27.13	a	23.75		35.58		49.83		70.00		74.93		81.16		77.20	a	70.80		55.03		44.60		35.23		53.77
1940	20.77		28.75	a	31.32		47.90		63.45		74.27		79.35		73.58		71.03		57.55		38.97	a	30.84		51.48
1941	25.42		28.71		34.97		60.97		71.48		79.67		81.90		76.90		70.27		56.23		42.73		33.19		55.20
1942	26.65		26.61		40.00		62.83		65.16		74.93		77.32		75.97		65.43		60.16		41.97	a	23.45		53.37
1943	21.16		29.96		32.03		49.97		64.87		77.37		82.45		78.00		64.60		58.06		36.97	a	31.58		52.25
1944	34.43	a	29.69		32.84		49.77		69.84		75.53		80.23		80.19		67.30		59.13		43.10		26.13		54.01
1945	19.71		29.21		50.03		53.97		59.74		71.00		76.00		77.84		67.67		55.26		38.70		24.00		51.93
1946	26.03	a	25.64		49.71		56.07		66.26		74.23		79.45		75.16		68.77		62.06		42.43		28.68		54.54
1947	28.77		26.36		35.29		47.97		60.16		72.50		82.10		84.39		69.53		68.77		35.97		28.26		53.34
1948	20.74		27.24		37.68		57.00		66.39		75.87		80.84		79.06		76.57		58.13		40.57		30.13		54.18
1949	28.35		28.50		35.45		58.67		69.55		81.37		81.61		80.94		67.37		62.52		40.33		28.35		55.25
1950	24.55		26.64		33.68		41.30		65.71		76.63		76.61		72.87		67.87		61.03		35.10		23.13		50.43
1951	22.58		36.25	x	34.16		50.63		70.80	f	72.07		78.58		72.03		65.13		55.06		34.13		25.94		51.03	b
1952	25.97		31.76		35.03		59.59	a	66.58		76.27		79.77		76.00		70.63		52.84		42.57		31.26		54.02
1953	28.19		28.14		38.13		48.20		67.71		75.60		79.03		78.97		68.40		64.52		47.03		30.84		54.56
1954	23.13		35.32		34.00		53.10		58.84		76.87		78.35		75.23		62.47		54.13		42.47		29.10		51.92
1955	23.39		26.46		35.23		59.80		72.10		75.47		84.77		81.45		69.20		58.19		35.20		23.74		53.75
1956	27.23		28.59		34.32		49.63		65.97		77.87		74.10		75.23		64.50		64.77		43.48	i	30.00		53.84	a
1957	17.90		29.89		38.06		54.73		66.26		75.27		82.84		77.71		66.43		56.29		40.52	g	29.71		54.10	a
1958	27.29		23.64		38.68		56.60		66.39		71.23		77.77		77.32		68.07		57.13		42.67		20.94		52.31
1959	18.19		25.71		38.23		52.20	j	73.91	t	78.03		80.71		79.48		68.47		50.29		31.83		33.32		50.43	b
1960	25.06		27.48		32.03		52.73		64.06		73.40		78.13		77.45		67.93		56.84		43.57		26.48		52.10
1961	23.32		34.43		39.97		49.73		65.16		76.30		78.48		78.94		67.87		59.06		41.50		26.52		53.44
1962	20.00		23.54		39.55		52.83		70.06		74.73		76.65		77.42		64.53		57.68		40.67		27.06		52.06
1963	14.29		21.64		40.94		57.67		66.32		78.50		81.97		75.16		67.50		68.32		46.53		23.16		53.50
1964	30.52		32.17		36.55		55.07		71.68		77.37		81.94		72.52		65.13		57.58		45.37		25.71		54.30
1965	23.29		25.89	a	32.48		49.17		69.87		73.93		76.00	a	75.23		61.73		57.94		40.57		32.42		51.54
1966	21.68		28.93		41.23		49.13		61.48		78.73		84.58		74.90		68.80		56.39		37.50		28.29		52.64
1967	26.81		22.04		39.48		54.67		61.74		74.93		77.48		75.13		68.70		53.71		36.27		29.39		51.70
1968	23.71		27.66		47.29		57.13		63.19		73.23		78.13		77.00		68.34	a	58.81		40.03		27.42		53.50
1969	25.06		30.46		36.94		56.00		68.06		66.70		78.74		82.71		69.20		51.58		40.27		29.48		52.93
1970	20.26		28.61		37.13		54.87		64.29		77.83		82.23		78.55		68.47		58.55		40.10		27.87		53.23
1971	19.48		27.50		34.71		53.77		64.84		79.87		76.42		76.61		69.30		61.19		40.07		29.45		52.77
1972	21.42		23.97		33.65		48.10		71.81		74.53		76.58		76.87		66.37		52.42		37.27		23.17	a	50.51
1973	29.35		29.36		45.16		51.87		60.74		74.50		79.61		78.52		68.17		62.48		39.50		26.45		53.81
1974	22.90		26.93		35.90		55.27		62.48		72.47		80.61		75.61		63.03		56.03		41.93		33.00		52.18
1975	26.29		28.93		35.19		48.50		72.32		75.03		81.84		77.90		64.70		60.61		47.23		28.06		53.89
1976	22.16		34.90		37.39		58.20		66.06		79.73		81.55		79.87		70.97		52.45		35.50		20.03		53.23
1977	16.13		29.07		44.48		61.53		77.23		73.57		82.35		74.19		65.03		57.65		40.17		25.84		53.94
1978	22.74		25.89		38.87		49.50		71.00		76.43		77.06		78.03		70.00		56.00		41.50		24.58		52.63
1979	16.23		21.21		36.61		49.20		61.94		74.43		80.94		74.68		71.33		51.00		37.67		33.26		50.71
1980	24.35		25.97		36.45		56.27		73.03		75.37		82.06		77.26		67.33		51.00		40.77		25.42		52.94
1981	26.94		31.64		43.16		56.10		66.16		74.97		79.90		76.74		65.97		52.16		45.50		28.81		54.00
1982	17.81		27.68		36.29	c	49.17		72.83	a	70.43		80.10	a	75.19		66.17		58.07	a	40.30		30.86	b	52.07
1983	27.70	a	33.50		36.90		49.20		61.45		76.70		85.19		82.58		71.24	a	56.43	c	42.00	e	19.93	d	53.57
1984	20.32		36.85	b	33.90	b	56.03	a	62.74		77.07		80.23	a	79.81		65.87		58.81		40.27		28.19		53.34
1985	21.84		24.50		42.65		55.77		69.16		71.87		79.45		74.94		66.90		56.65		35.00		19.90		51.55
1986	25.39		26.89		39.23		58.20		70.65		74.90		81.35		74.61		67.13		56.00		37.43		31.03		53.57
1987	-----	z	36.21		44.71		60.47		69.94		81.00		82.84		77.81		71.40		50.19		43.13		32.68		59.13	a
1988	22.23		25.17		37.97		55.23		74.32		82.50		84.68		80.65		69.07		51.13		39.87		29.00		54.32
1989	30.26		23.61		34.03		51.27		67.90		73.53		83.84		80.00		70.90		59.81		35.37		18.48		52.42
1990	34.74		30.86		42.74		58.17		63.45		75.37		78.35		77.55		69.73		56.03		45.40		28.81		55.10
1991	21.87		33.29		40.73	a	56.63		70.61		80.40		78.35		82.29		66.97		54.84		37.43		30.58		54.50
1992	27.48		31.52		37.94		48.37		-----	z	74.10		73.48		75.55		66.30		56.00		37.37		29.29		50.67	a
1993	26.06		29.00		42.84		48.63		64.74		72.07		79.39		79.30	a	63.87		53.06		36.80		28.10		51.99
1994	13.77		22.75		40.84		54.23		68.55		78.73		77.74		74.94		70.53		59.42		44.63		34.94		53.42
1995	26.13		26.79		41.26		45.97		64.42		82.53		79.32		79.61		67.83		55.81		31.83		24.32		52.15
1996	22.97		25.86		32.03		46.63		62.68		74.10		75.45		78.45		69.33		56.74		34.60		26.10		50.41
1997	21.61		30.64		35.74		51.93		57.35		79.43		78.48		73.84		70.03		56.97		37.40		34.32		52.31
1998	26.10		37.79		39.16		58.73		75.39		74.27		82.13		80.68		76.37		58.71		43.13		34.84		57.27
1999	21.52		31.86		41.45		56.20		69.39		77.10		82.42		76.77		69.90		54.32		49.57		29.03		54.96
2000	24.42		32.76		47.10		51.27		69.16		73.37		77.68		77.37	a	68.00	a	60.81		40.27		20.29		53.54
2001	29.94		25.00		37.65		56.00		68.39		74.83		80.06		82.94		67.80		55.90		50.97		34.90		55.36
2002	31.58		34.18		32.48		49.77		59.68		76.43		85.90		78.06		71.47		48.00	b	37.70		31.45		53.06
2003	21.97		22.50		37.84		50.73		64.52		74.80		81.03		80.26		69.90		55.55		39.00		32.21	b	52.53
2004	17.45		30.97		38.90		52.70		62.16		72.67		77.16		73.61		75.17		57.45		43.93		28.16		52.53
2005	21.97		33.43		36.84		58.53		62.55		81.30		83.77		79.90		75.53		59.94		41.00		26.19		55.08
2006	32.19		26.96		40.10		61.03		66.58		77.27		85.58		78.52		67.13		52.48		43.23		33.13		55.35
2007	27.84		21.36		41.87		51.93		70.65		80.10		81.26		-----	z	73.23		61.45		39.30		27.19		52.38	a
2008	25.32		25.03		35.35		51.97		63.23		74.70		80.87		80.58		71.13		58.15	k	40.03	a	22.65		51.90	a
2009	18.39		29.43		38.87		51.43		64.81		73.57		74.65		75.52		74.93		48.81		48.00		25.29		51.97
2010	25.81		30.25		49.32		61.27		71.16		73.00		81.03		80.97		65.70		60.06		42.10		26.29		55.58
2011	20.87		27.82		37.55		48.64	b	62.94		73.73		84.23		81.26		68.57		59.94		43.10		31.61		53.35
2012	28.42		35.14		53.13		55.27		71.55		78.77		85.71		79.32		69.17		54.32		40.70		31.35		56.90
2013	25.68		25.68		33.94		45.53		66.00		74.50		79.81		78.84		70.87		56.00		38.03		20.13		51.25
2014	14.61		19.57		30.10		47.23		65.52		75.73		76.29		76.87		68.87		52.55		32.97		29.90		49.18
2015	21.29		16.36		39.13		53.73		67.58		73.57		80.65		75.58		75.10		57.45		46.87		36.23		53.63
2016	25.13		29.83		43.48		48.93		68.39		75.70		81.52		80.81		71.57		58.23		50.83		27.94		55.20
2017	27.39		34.14		35.90		54.57		62.68		75.83		80.23		74.87		72.57		60.29		37.40		23.94		53.32
2018	24.10		26.79		38.10		44.50		75.97		76.40		82.61		79.19		70.73		49.06		33.10		31.19		52.65
2019	20.06		22.43		37.00		49.43		61.52	b	75.47		82.71		76.81		69.60		53.68		34.73		28.97		51.03
2020	28.87		31.24		41.03		47.93		63.68		77.90		82.68		78.61		66.47		48.65		48.40		31.23		53.89
2021	28.48		23.54		44.74		54.17		64.39		79.57		80.58		81.65		72.37		62.94		42.00		31.52		55.49
2022	20.16		23.79		35.74		45.13		66.90		77.30		80.65		78.16		71.13		57.94		45.17		26.48		52.38
2023	28.35		31.21		37.74		50.97		68.32		78.53		79.65		76.68		71.13		56.06		42.30		37.77		54.89
2024	26.13		40.10		44.23	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	36.82	i
Period of Record Statistics
MEAN	24.04		27.40		38.08		52.88		66.53		75.78		80.21		77.52		69.00		56.80		40.65		28.33		53.08
S.D.	4.79		4.76		4.82		4.78		4.20		3.16		2.79		2.69		3.37		4.23		4.14		4.53		1.65
SKEW	-0.42		-0.07		0.78		0.10		0.04		0.13		0.14		-0.08		0.41		0.13		0.16		0.23		0.02
MAX	34.74		40.10		54.17		65.00		77.23		83.10		87.61		84.39		79.07		68.77		50.97		42.07		57.38
MIN	7.84		14.66		27.48		40.53		55.55		66.70		73.48		70.13		61.73		45.16		31.83		18.48		48.65
YRS	123		124		125		122		120		121		122		122		123		123		120		123		109