IRON MTN-KINGSFORD WWTP, MI

Maximum of Maximum Temperature (Degrees Fahrenheit)

(204090)

File last updated on April 20, 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	46.00	a	40.00		82.00		83.00		88.00		89.00		88.00	a	89.00		82.00		64.00		50.00		-----	z
1900	55.00		37.00		52.00		82.00		90.00	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1901	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	77.00	j	80.00		59.00	b	39.00	c	-----	z
1902	43.00		45.00	a	62.00	b	71.00		89.00		80.00	d	90.00		86.00	a	75.00	b	68.00	b	56.00	c	45.00	b	90.00	q
1903	44.00	a	50.00	a	64.00	a	70.00		84.00		86.00	a	89.00	a	85.00		81.00	a	73.00		72.00		33.00		89.00	f
1904	33.00		37.00	a	45.00		73.00		80.00		86.00		94.00		84.00		79.00		72.00		70.00		49.00		94.00	a
1905	39.00		49.00		68.00		72.00		77.00		87.00	a	95.00		90.00		88.00	b	83.00	a	60.00	a	47.00		95.00	e
1906	46.00		47.00		47.00		71.00		88.00		87.00		91.00		90.00		91.00		78.00		54.00	c	43.00	e	91.00	h
1907	36.00	a	46.00		61.00		59.00		68.00		93.00		86.00	a	88.00		85.00		74.00	b	50.00		49.00	a	93.00	e
1908	55.00		44.00	a	55.00	a	82.00		82.00	b	92.00	f	96.00	c	92.00		90.00		80.00	c	55.00		41.00		96.00	p
1909	45.00		43.00		49.00		55.00	a	81.00	g	93.00	b	88.00	a	93.00	c	83.00		80.00	d	63.00	a	49.00	f	93.00	y
1910	41.00		43.00		81.00	a	74.00	f	78.00	b	99.00	j	99.00	q	89.00		81.00		80.00	a	50.00	a	45.00	a	-----	z
1911	57.00	a	57.00	a	58.00		80.00	b	90.00	a	100.00		103.00		88.00		87.00		70.00		58.00		49.00		103.00	e
1912	37.00		44.00		55.00		74.00		84.00		93.00	a	94.00	a	87.00		92.00		81.00		62.00		46.00	a	94.00	c
1913	44.00	a	39.00		51.00		83.00		85.00		95.00		90.00	b	92.00	a	90.00	a	75.00		63.00		57.00	a	95.00	f
1914	44.00		49.00		52.00		80.00		90.00		93.00		92.00	a	90.00	b	90.00		78.00		62.00		46.00		93.00	c
1915	37.00		42.00		49.00		87.00		80.00		83.00	a	87.00	a	85.00		86.00	a	68.00		61.00		38.00		87.00	c
1916	43.00		51.00		55.00		70.00		79.00		82.00		98.00		96.00		79.00		82.00		56.00		47.00	a	98.00	a
1917	37.00		38.00		48.00	a	68.00		81.00	a	83.00		104.00		85.00		80.00		68.00		67.00		38.00		104.00	b
1918	23.00		47.00	a	71.00		71.00		87.00		86.00		95.00		88.00		80.00		80.00		55.00		40.00	e	95.00	f
1919	41.00	c	36.00		56.00		72.00	a	92.00		89.00		99.00		85.00		86.00	a	77.00	a	60.00	f	36.00		99.00	l
1920	32.00		35.00		59.00		60.00		86.00		90.00		85.00		86.00		88.00		79.00		-----	z	52.00		-----	z
1921	45.00		45.00		52.00		81.00		90.00	a	93.00	a	97.00		88.00		89.00	a	69.00		50.00		42.00		97.00	c
1922	36.00		36.00		55.00		70.00		87.00		92.00		84.00		92.00		88.00	a	86.00		53.00		53.00		92.00	a
1923	43.00		38.00		53.00		78.00		85.00		90.00		94.00		83.00		84.00		76.00		64.00		53.00	a	94.00	a
1924	46.00		48.00		50.00		64.00		77.00		84.00		88.00		89.00		75.00	a	75.00		67.00		41.00		89.00	a
1925	38.00		52.00		67.00		80.00		94.00	a	91.00		93.00		88.00		89.00		65.00		60.00		50.00		94.00	a
1926	46.00		40.00		51.00		80.00		88.00		88.00		93.00		89.00		75.00		74.00		52.00		38.00		93.00
1927	38.00		47.00		70.00		84.00		79.00		96.00		91.00		83.00		92.00		80.00	a	57.00	a	38.00	a	96.00	c
1928	43.00	b	40.00		62.00		69.00		82.00		84.00	b	90.00		90.00	a	78.00		85.00		56.00		46.00		90.00	e
1929	29.00	a	42.00		57.00		72.00		87.00		86.00	a	92.00		92.00		95.00		80.00		59.00		45.00		95.00	b
1930	41.00		62.00		63.00		77.00		87.00		86.00		90.00	a	92.00		86.00		81.00		62.00		46.00		92.00	a
1931	39.00		49.00		50.00		77.00	a	86.00	a	100.00	a	97.00		95.00		97.00		81.00		71.00		48.00		100.00	c
1932	39.00	e	49.00		46.00		76.00		87.00		85.00		93.00		90.00		81.00		78.00		58.00		54.00		93.00	e
1933	42.00		44.00	a	49.00		69.00		85.00		95.00		98.00		87.00		90.00		70.00	a	70.00	a	40.00		98.00	c
1934	44.00		41.00		46.00		84.00		100.00		99.00		92.00		92.00		77.00		79.00		62.00		36.00	b	100.00	b
1935	40.00		47.00		49.00		77.00		81.00		88.00		92.00		89.00	c	84.00		69.00		59.00		36.00		92.00	c
1936	36.00	a	40.00		55.00	b	71.00		87.00	a	85.00		103.00		91.00	b	86.00		75.00		56.00	a	47.00		103.00	g
1937	34.00		44.00	a	47.00		66.00		88.00		90.00		96.00	b	90.00	a	89.00	c	76.00	c	55.00		38.00	a	96.00	k
1938	45.00	a	45.00		71.00		84.00		80.00		90.00		93.00		93.00	a	82.00		84.00		66.00		35.00		93.00	b
1939	40.00	a	39.00		66.00		81.00		93.00		89.00		90.00		86.00	a	93.00		80.00		65.00		53.00		93.00	b
1940	38.00		38.00	a	52.00		63.00		82.00		86.00		91.00		86.00		85.00		76.00		56.00	a	47.00		91.00	b
1941	34.00		42.00		50.00		80.00		87.00		94.00		98.00		92.00		87.00		68.00		63.00		57.00		98.00
1942	55.00		35.00		53.00		83.00		83.00		85.00		94.00		94.00		85.00		75.00		58.00	a	40.00		94.00	a
1943	33.00		53.00		62.00		76.00		82.00		90.00		91.00		90.00		84.00		80.00		51.00	a	43.00		91.00	a
1944	55.00	a	49.00		55.00		72.00		90.00		92.00		89.00		96.00		84.00		75.00		72.00		36.00		96.00	a
1945	30.00		43.00		72.00		79.00		75.00		88.00		93.00		90.00		91.00		81.00		60.00		44.00		93.00
1946	43.00	a	44.00		76.00		79.00		85.00		89.00		88.00		90.00		83.00		79.00		61.00		51.00		90.00	a
1947	49.00		47.00		52.00		78.00		80.00		89.00		90.00		101.00		90.00		88.00		59.00		38.00		101.00
1948	36.00		48.00		62.00		80.00		87.00		93.00		93.00		95.00		90.00		73.00		69.00		49.00		95.00
1949	45.00		45.00		53.00		79.00		90.00		95.00		94.00		94.00		80.00		78.00		68.00		48.00		95.00
1950	39.00		38.00		49.00		61.00		83.00		90.00		87.00		85.00		81.00		84.00		61.00		39.00		90.00
1951	40.00		48.00	x	57.00		83.00		84.00	f	86.00		87.00		84.00		79.00		75.00		57.00		50.00		-----	z
1952	43.00		40.00		46.00		89.00	a	85.00		89.00		89.00		87.00		89.00		65.00		57.00		45.00		89.00	a
1953	38.00		42.00		57.00		71.00		88.00		86.00		90.00		90.00		93.00		80.00		70.00		48.00		93.00
1954	35.00		49.00		51.00		73.00		78.00		88.00		88.00		86.00		75.00		71.00		56.00		37.00		88.00
1955	36.00		39.00		64.00		79.00		90.00		87.00		102.00		96.00		90.00		83.00		49.00		39.00		102.00
1956	34.00		45.00		46.00		62.00		80.00		97.00		84.00		84.00		82.00		81.00		63.00	i	48.00		97.00	i
1957	38.00		42.00		52.00		84.00		80.00		89.00		96.00		93.00		81.00		68.00		56.00	g	42.00		96.00	g
1958	37.00		50.00		53.00		81.00		84.00		89.00		88.00		93.00		82.00		72.00		62.00		37.00		93.00
1959	34.00		44.00		57.00		73.00	j	81.00	t	91.00		91.00		90.00		86.00		67.00		50.00		48.00		-----	z
1960	35.00		38.00		53.00		78.00		80.00		85.00		87.00		89.00		90.00		78.00		56.00		52.00		90.00
1961	44.00		53.00		51.00		67.00		82.00		91.00		90.00		89.00		89.00		80.00		66.00		52.00		91.00
1962	40.00		43.00		56.00		88.00		90.00		88.00		89.00		87.00		80.00		76.00		54.00		57.00		90.00
1963	37.00		40.00		65.00		74.00		82.00		97.00		98.00		88.00		78.00		84.00		63.00		42.00		98.00
1964	45.00		49.00		52.00		76.00		92.00		95.00		93.00		94.00		81.00		76.00		66.00		37.00		95.00
1965	43.00		42.00	a	42.00		78.00		87.00		88.00		89.00	a	95.00		77.00		80.00		69.00		45.00		95.00	b
1966	38.00		43.00		67.00		65.00		83.00		91.00		93.00		88.00		86.00		80.00		49.00		41.00		93.00
1967	46.00		36.00		65.00		71.00		80.00		84.00		87.00		86.00		80.00		79.00		60.00		48.00		87.00
1968	40.00		45.00		66.00		82.00		81.00		92.00		90.00		93.00		81.00	a	80.00		58.00		45.00		93.00	a
1969	40.00		41.00		55.00		73.00		92.00		81.00		88.00		92.00		85.00		71.00		59.00		45.00		92.00
1970	42.00		45.00		56.00		81.00		86.00		93.00		92.00		88.00		84.00		74.00		58.00		47.00		93.00
1971	32.00		47.00		43.00		73.00		81.00		95.00		84.00		86.00		86.00		82.00		56.00		39.00		95.00
1972	37.00		38.00		49.00		70.00		88.00		87.00		91.00		89.00		75.00		70.00		47.00		34.00	a	91.00	a
1973	51.00		44.00		61.00		72.00		76.00		90.00		94.00		95.00		88.00		75.00		52.00		43.00		95.00
1974	38.00		46.00		58.00		81.00		85.00		87.00		97.00		85.00		76.00		72.00		63.00		44.00		97.00
1975	44.00		44.00		56.00		66.00		88.00		89.00		96.00		92.00		76.00		74.00		75.00		43.00		96.00
1976	34.00		61.00		65.00		84.00		79.00		88.00		88.00		95.00		96.00		85.00		53.00		41.00		96.00
1977	31.00		43.00		57.00		82.00		88.00		90.00		99.00		87.00		78.00		70.00		56.00		37.00		99.00
1978	34.00		38.00		53.00		73.00		90.00		88.00		87.00		90.00		90.00		76.00		75.00		39.00		90.00
1979	28.00		45.00		51.00		72.00		82.00		89.00		90.00		84.00		85.00		70.00		57.00		48.00		90.00
1980	42.00		39.00		53.00		94.00		90.00		90.00		95.00		88.00		82.00		72.00		57.00		40.00		95.00
1981	46.00		58.00		67.00		72.00		84.00		83.00		91.00		86.00		85.00		66.00		68.00		37.00		91.00
1982	32.00		52.00		51.00	c	76.00		83.00	a	83.00		87.00	a	87.00		84.00		76.00	a	60.00		59.00	b	87.00	h
1983	37.00	a	48.00		49.00		76.00		74.00		88.00		94.00		92.00		92.00	a	75.00	c	58.00	e	35.00	d	94.00	n
1984	38.00		60.00	b	50.00	b	72.00	a	82.00		85.00		88.00	a	88.00		80.00		71.00		55.00		49.00		88.00	f
1985	35.00		42.00		56.00		85.00		83.00		84.00		88.00		89.00		85.00		71.00		56.00		34.00		89.00
1986	48.00		38.00		67.00		84.00		95.00		90.00		98.00		88.00		86.00		74.00		55.00		44.00		98.00
1987	-----	z	45.00		73.00		85.00		87.00		96.00		97.00		89.00		85.00		72.00		60.00		42.00		-----	z
1988	40.00		49.00		55.00		69.00		90.00		98.00		100.00		97.00		84.00		78.00		57.00		52.00		100.00
1989	46.00		50.00		70.00		75.00		84.00		86.00		96.00		97.00		81.00		80.00		47.00		37.00		97.00
1990	49.00		50.00		64.00		90.00		86.00		90.00		89.00		87.00		87.00		73.00		71.00		55.00		90.00
1991	39.00		56.00		65.00	a	85.00		91.00		95.00		90.00		95.00		84.00		75.00		55.00		45.00		95.00	a
1992	41.00		46.00		50.00		69.00		-----	z	92.00		82.00		88.00		79.00		88.00		54.00		40.00		-----	z
1993	42.00		50.00		67.00		72.00		84.00		88.00		86.00		90.00	a	77.00		76.00		53.00		44.00		90.00	a
1994	28.00		49.00		64.00		80.00		92.00		94.00		86.00		89.00		83.00		73.00		58.00		53.00		94.00
1995	36.00		47.00		67.00		59.00		85.00		100.00		95.00		92.00		85.00		84.00		44.00		41.00		100.00
1996	43.00		49.00		55.00		69.00		86.00		96.00		87.00		85.00		85.00		76.00		53.00		38.00		96.00
1997	37.00		58.00		60.00		72.00		74.00		90.00		91.00		89.00		82.00		81.00		59.00		56.00		91.00
1998	42.00		47.00		69.00		75.00		89.00		88.00		93.00		88.00		98.00		75.00		59.00		64.00		98.00
1999	42.00		45.00		65.00		74.00		89.00		92.00		96.00		89.00		89.00		73.00		75.00		48.00		96.00
2000	40.00		57.00		77.00		76.00		89.00		92.00		87.00		84.00	a	90.00	a	78.00		66.00		35.00		92.00	b
2001	46.00		37.00		53.00		77.00		83.00		90.00		93.00		98.00		83.00		78.00		68.00		58.00		98.00
2002	51.00		49.00		54.00		86.00		81.00		90.00		96.00		89.00		92.00		71.00	b	56.00		49.00		96.00	b
2003	53.00		49.00		65.00		86.00		81.00		91.00		91.00		90.00		85.00		81.00		54.00		45.00	b	91.00	b
2004	34.00		52.00		57.00		78.00		83.00		90.00		87.00		85.00		84.00		79.00		59.00		44.00		90.00
2005	36.00		53.00		63.00		80.00		78.00		92.00		96.00		92.00		92.00		83.00		57.00		37.00		96.00
2006	52.00		37.00		59.00		75.00		91.00		92.00		100.00		98.00		82.00		82.00		54.00		44.00		100.00
2007	44.00		51.00		74.00		85.00		89.00		92.00		96.00		-----	z	90.00		86.00		57.00		41.00		-----	z
2008	41.00		45.00		47.00		74.00		77.00		86.00		87.00		88.00		90.00		78.00	k	73.00	a	40.00		90.00	l
2009	28.00		46.00		63.00		81.00		89.00		93.00		87.00		88.00		83.00		67.00		67.00		40.00		93.00
2010	47.00		40.00		66.00		78.00		91.00		88.00		88.00		91.00		79.00		84.00		59.00		43.00		91.00
2011	37.00		56.00		59.00		66.00	b	79.00		95.00		96.00		89.00		86.00		85.00		55.00		47.00		96.00	b
2012	48.00		47.00		82.00		74.00		88.00		91.00		95.00		92.00		84.00		73.00		62.00		54.00		95.00
2013	42.00		41.00		51.00		72.00		86.00		88.00		94.00		93.00		87.00		79.00		55.00		38.00		94.00
2014	33.00		44.00		57.00		72.00		87.00		87.00		86.00		85.00		83.00		62.00		53.00		47.00		87.00
2015	39.00		28.00		61.00		75.00		83.00		82.00		90.00		90.00		87.00		85.00		69.00		55.00		90.00
2016	45.00		58.00		67.00		82.00		90.00		88.00		94.00		92.00		83.00		70.00		71.00		43.00		94.00
2017	48.00		60.00		60.00		72.00		80.00		89.00		90.00		89.00		89.00		78.00		58.00		52.00		90.00
2018	41.00		52.00		54.00		69.00		91.00		92.00		95.00		90.00		86.00		70.00		52.00		49.00		95.00
2019	48.00		39.00		55.00		69.00		83.00	b	90.00		93.00		85.00		81.00		72.00		49.00		45.00		93.00	b
2020	39.00		53.00		59.00		63.00		85.00		92.00		92.00		88.00		82.00		74.00		77.00		48.00		92.00
2021	43.00		52.00		64.00		77.00		84.00		94.00		91.00		90.00		83.00		82.00		65.00		50.00		94.00
2022	34.00		40.00		59.00		73.00		89.00		96.00		92.00		89.00		86.00		77.00		73.00		43.00		96.00
2023	37.00		52.00		46.00		85.00		87.00		90.00		91.00		88.00		92.00		84.00		64.00		51.00		92.00
2024	41.00		65.00		68.00	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	40.46		45.71		57.71		75.56		84.91		89.79		91.90		89.59		84.88		76.51		59.81		44.76		93.91
S.D.	6.26		6.54		8.43		7.21		5.01		4.17		4.38		3.58		5.04		5.49		6.91		6.34		3.52
SKEW	0.22		0.44		0.49		-0.25		-0.24		0.23		0.40		0.53		0.09		-0.19		0.40		0.38		0.34
MAX	57.00		65.00		82.00		94.00		100.00		100.00		104.00		101.00		98.00		88.00		77.00		64.00		104.00
MIN	23.00		28.00		40.00		55.00		68.00		80.00		82.00		83.00		75.00		62.00		44.00		33.00		87.00
YRS	123		124		125		122		120		121		122		122		123		123		120		123		94