WILLOW RESERVOIR, WI

Maximum of Maximum Temperature (Degrees Fahrenheit)

(479236)

File last updated on April 18, 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
1934	-----	z	-----	z	-----	z	79.00		106.00		101.00		105.00		93.00		78.00		75.00		59.00		33.00	a	-----	z
1935	45.00		40.00		62.00	a	78.00		82.00		87.00		98.00		94.00		85.00		71.00		45.00	b	49.00		98.00	c
1936	48.00		41.00		54.00	b	69.00		87.00		91.00		112.00		94.00		89.00	a	73.00		50.00		48.00		112.00	c
1937	31.00		42.00		50.00		62.00		87.00		93.00		96.00		92.00	a	89.00	a	67.00		54.00	b	38.00		96.00	d
1938	41.00	b	41.00	c	66.00	a	77.00	b	82.00	b	90.00	a	87.00		88.00	d	79.00	d	77.00	a	66.00	c	39.00	a	90.00	x
1939	41.00	b	40.00	b	67.00	d	80.00	d	88.00	c	85.00	f	88.00	a	87.00		91.00	a	69.00	a	62.00	e	48.00	f	-----	z
1940	27.00		39.00	d	48.00	a	66.00		82.00		87.00		92.00		87.00		83.00		73.00	a	56.00		44.00		92.00	f
1941	37.00	l	37.00		51.00	a	77.00		83.00		92.00		94.00		89.00		84.00		69.00	a	64.00		50.00	b	94.00	p
1942	48.00	a	37.00	b	51.00		79.00	a	81.00	d	82.00		91.00		92.00	a	83.00		75.00		57.00		31.00	a	92.00	j
1943	32.00		44.00		63.00	a	63.00		80.00	b	87.00	a	91.00		88.00		79.00	a	76.00		42.00		40.00		91.00	e
1944	50.00	a	39.00	a	37.00		68.00		88.00		90.00		89.00		93.00		81.00		71.00		75.00		34.00		93.00	b
1945	31.00		40.00		70.00		75.00		79.00		84.00		92.00		88.00		88.00		80.00		56.00		38.00	a	92.00	a
1946	40.00		44.00		71.00		76.00		85.00		84.00		89.00	b	86.00	b	79.00	e	75.00	d	57.00	e	50.00		89.00	r
1947	44.00		45.00		48.00		68.00		74.00	a	85.00		90.00		100.00		89.00		86.00		58.00		34.00	a	100.00	b
1948	35.00	a	42.00		57.00		79.00		81.00		87.00	a	93.00		96.00		89.00		77.00		68.00		48.00	k	96.00	m
1949	43.00		42.00		-----	z	79.00	a	87.00	y	90.00		92.00		90.00		77.00		74.00		63.00		48.00		-----	z
1950	38.00		38.00		46.00		58.00		80.00	a	84.00		84.00		87.00		80.00		80.00	d	73.00		36.00		87.00	e
1951	43.00		46.00		53.00		76.00		82.00		81.00		86.00		82.00		78.00		69.00		50.00		56.00	a	86.00	a
1952	45.00	a	45.00		50.00		88.00	a	84.00		88.00		88.00		84.00		88.00		69.00		68.00		44.00		88.00	b
1953	36.00	a	40.00		55.00		63.00		82.00		86.00		94.00		89.00	a	90.00	a	85.00	g	70.00		42.00	i	94.00	s
1954	33.00	d	53.00	a	47.00		71.00	a	78.00		88.00		94.00	a	84.00		78.00		70.00		60.00		38.00		94.00	g
1955	35.00		40.00		61.00		75.00		86.00		88.00		97.00		92.00	a	88.00		80.00		49.00		36.00	a	97.00	b
1956	36.00		39.00		49.00		59.00		79.00	a	95.00		84.00		81.00		78.00		81.00		66.00		45.00		95.00	a
1957	38.00		43.00		53.00		80.00		80.00		87.00		94.00		91.00		87.00		69.00		50.00	a	43.00		94.00	a
1958	37.00		55.00		53.00		75.00		80.00		88.00		86.00		89.00		81.00		75.00		61.00		38.00		89.00
1959	34.00		40.00		54.00		66.00		89.00		87.00		88.00		90.00		86.00		69.00		46.00		45.00		90.00
1960	36.00		40.00		52.00		78.00		78.00		84.00		89.00		87.00		89.00		74.00	a	53.00		49.00		89.00	a
1961	44.00		53.00		55.00		63.00		80.00		90.00		86.00		88.00		86.00		79.00		59.00		50.00		90.00
1962	37.00		40.00		58.00		82.00		86.00		87.00		86.00		85.00		76.00		76.00		54.00		55.00		87.00
1963	39.00		35.00		68.00		72.00		80.00		96.00		95.00		86.00		79.00		82.00		56.00		38.00		96.00
1964	44.00		47.00		48.00		78.00		89.00	b	89.00	a	93.00	a	95.00	b	77.00		73.00		68.00		34.00		95.00	f
1965	39.00	a	43.00		45.00		72.00		81.00	j	86.00		88.00		91.00		80.00	a	78.00		65.00		45.00		91.00	l
1966	24.00	m	43.00		67.00		59.00		81.00		92.00		91.00		82.00	a	81.00		77.00		51.00		39.00		92.00	n
1967	41.00	a	41.00		65.00		67.00		84.00		81.00		88.00		84.00		79.00		80.00		56.00		48.00		88.00	a
1968	45.00		45.00		65.00		75.00		84.00		87.00		87.00		90.00		77.00		78.00		53.00		44.00		90.00
1969	38.00		44.00		52.00		69.00		88.00		83.00		89.00		89.00		85.00		76.00		60.00		40.00		89.00
1970	34.00		42.00		50.00		87.00		83.00		92.00		91.00		90.00		86.00		74.00		53.00		46.00		92.00
1971	30.00		44.00		47.00		71.00		76.00		92.00		82.00		85.00		86.00		77.00		54.00		35.00		92.00
1972	38.00		37.00		53.00		68.00		88.00		84.00		87.00		87.00		77.00		66.00		48.00		32.00		88.00
1973	50.00		37.00		56.00		69.00		73.00		87.00		91.00		92.00		84.00		73.00		49.00		40.00		92.00
1974	39.00		43.00		54.00		77.00		84.00		84.00		95.00		85.00		77.00		73.00		60.00		39.00		95.00
1975	44.00		45.00		51.00		59.00		88.00		86.00		92.00		91.00		75.00		75.00		71.00		47.00		92.00
1976	32.00		59.00		63.00		79.00		77.00		90.00		90.00		94.00		93.00		85.00		48.00	b	39.00		94.00	b
1977	27.00		50.00		64.00		80.00		87.00		87.00		97.00		86.00		78.00		67.00		58.00		38.00		97.00
1978	30.00		29.00		53.00		72.00		86.00		83.00		85.00		87.00		89.00		70.00		70.00		34.00		89.00
1979	24.00		37.00		49.00		71.00		81.00		81.00		88.00		84.00		82.00		68.00		58.00		44.00		88.00
1980	41.00		36.00		49.00		87.00		87.00		87.00		90.00		85.00		70.00	n	75.00		55.00		38.00		90.00	n
1981	51.00		53.00		61.00		67.00		78.00		81.00		89.00		86.00		81.00		63.00		67.00		35.00		89.00
1982	29.00		45.00	b	51.00		71.00		82.00		83.00		88.00		87.00		82.00		75.00	a	57.00		59.00		88.00	c
1983	37.00	a	42.00		52.00		72.00		73.00		88.00		90.00		89.00		88.00		75.00		55.00	n	-----	z	-----	z
1984	30.00	g	-----	z	49.00		75.00	c	80.00		84.00	c	88.00	a	93.00	b	84.00		70.00		50.00	b	46.00	b	-----	z
1985	37.00		44.00	c	58.00	c	82.00	d	82.00		87.00	j	90.00		87.00		90.00		69.00	q	53.00	b	30.00		-----	z
1986	42.00		34.00		69.00		84.00		88.00		86.00		92.00		88.00		79.00		70.00		53.00		37.00		92.00
1987	47.00	a	45.00		70.00		87.00		80.00		89.00		87.00		85.00		85.00		70.00		58.00		37.00		89.00	a
1988	38.00		44.00		47.00		68.00		86.00	a	91.00		93.00		94.00		81.00		71.00	a	57.00		47.00	a	94.00	c
1989	43.00		42.00		63.00		72.00		79.00		83.00		88.00		88.00		78.00		74.00		45.00		35.00		88.00
1990	46.00		42.00		61.00		81.00		77.00	a	84.00		87.00		79.00	s	78.00	m	74.00	b	67.00		46.00		-----	z
1991	36.00		48.00		59.00		74.00		85.00		-----	z	83.00		88.00	a	79.00	b	67.00		50.00		40.00	m	-----	z
1992	38.00		45.00		50.00		65.00		79.00		86.00	a	79.00		86.00		75.00		84.00		50.00	a	34.00		86.00	b
1993	40.00		46.00		53.00	m	64.00		79.00		82.00		80.00		85.00		72.00		69.00		49.00		44.00		85.00	m
1994	27.00		49.00		56.00	k	74.00		86.00		86.00		83.00		85.00		80.00		67.00	m	54.00	f	49.00		-----	z
1995	36.00		44.00		60.00		57.00		79.00		93.00	a	96.00		85.00		82.00		77.00	a	38.00	n	37.00		96.00	p
1996	43.00		46.00		51.00		62.00		78.00		88.00		83.00		83.00		78.00		71.00		49.00		33.00	a	88.00	a
1997	36.00		50.00	a	37.00	l	66.00		70.00		83.00		86.00		85.00		79.00		77.00		55.00		46.00	a	86.00	n
1998	42.00		46.00		44.00	l	72.00		84.00		81.00		88.00		88.00		91.00		71.00		62.00		59.00	a	91.00	m
1999	42.00		44.00		60.00		75.00		84.00		87.00		91.00		86.00		83.00		70.00		69.00		49.00		91.00
2000	40.00		52.00		71.00		74.00		84.00		89.00		85.00		87.00		88.00		73.00	a	65.00		31.00		89.00	a
2001	40.00		33.00		47.00		74.00		80.00		87.00		89.00		91.00		81.00		74.00		64.00		56.00		91.00
2002	48.00		44.00		48.00	d	77.00		83.00		84.00		92.00		86.00		86.00	a	76.00	h	44.00	l	45.00		92.00	y
2003	44.00		44.00		62.00		78.00		77.00		81.00		86.00		89.00		87.00		76.00		50.00	a	43.00	a	89.00	b
2004	31.00	a	46.00		52.00		74.00		76.00		82.00		84.00		83.00		84.00		75.00		61.00	q	44.00	a	84.00	s
2005	35.00		51.00		61.00	c	75.00		74.00		89.00		91.00		87.00		90.00		79.00		56.00		38.00		91.00	c
2006	47.00		35.00		55.00	l	69.00		86.00		87.00		99.00		92.00		84.00		79.00		57.00		42.00	d	99.00	p
2007	39.00		47.00		71.00	j	80.00		85.00		87.00		89.00	c	87.00		86.00	a	82.00		52.00		34.00	a	89.00	o
2008	41.00		39.00		45.00		74.00	a	72.00		82.00		83.00		85.00	a	87.00		76.00		69.00	a	41.00	a	87.00	d
2009	24.00		44.00	a	57.00		78.00		84.00		94.00		82.00		84.00		82.00		61.00		63.00		41.00		94.00	a
2010	38.00		37.00		66.00	j	77.00		90.00		84.00		84.00		86.00		74.00		79.00		63.00	c	41.00	c	90.00	p
2011	36.00	a	50.00		51.00		70.00		78.00		90.00		90.00		85.00		81.00	a	80.00		57.00	c	41.00		90.00	e
2012	44.00		44.00		75.00	k	69.00		85.00		85.00	c	92.00	a	89.00		86.00		73.00		57.00	d	53.00		92.00	s
2013	43.00	a	35.00		49.00	b	70.00		82.00		82.00	c	87.00	d	89.00	e	85.00	b	74.00	e	52.00	c	34.00	a	-----	z
2014	34.00		39.00		54.00	c	65.00		84.00	b	83.00	m	83.00	a	80.00	f	76.00		61.00		48.00	a	41.00		-----	z
2015	35.00	b	28.00		57.00		71.00		78.00		77.00	a	85.00		87.00		84.00	a	78.00	a	69.00	b	46.00	g	87.00	n
2016	39.00	b	49.00		64.00	h	73.00	b	84.00		85.00	a	88.00	a	85.00		76.00	c	69.00	g	68.00	c	38.00		-----	z
2017	41.00	b	57.00		55.00	p	68.00	f	72.00		85.00		85.00		84.00	g	85.00		73.00		53.00		53.00		-----	z
2018	42.00		47.00		47.00	e	62.00		90.00		90.00		90.00		84.00		82.00		68.00		45.00		44.00		90.00	e
2019	39.00		37.00		49.00		63.00		78.00		85.00		84.00		82.00		77.00		71.00		46.00		43.00		85.00
2020	34.00		45.00		51.00		64.00		80.00		87.00		90.00		85.00		79.00		71.00		71.00		48.00		90.00
2021	34.00		45.00		60.00		78.00		77.00		92.00		89.00		83.00		82.00		78.00		60.00		55.00		92.00
2022	33.00		42.00		55.00		65.00		90.00		91.00		89.00		82.00		83.00		72.00		72.00		39.00		91.00
2023	34.00		47.00		43.00		79.00		84.00		89.00		91.00		89.00		91.00		82.00		64.00		51.00		91.00
2024	36.00		63.00		64.00		68.00	l	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	38.44		43.27		55.24		72.45		82.13		86.85		89.36		87.75		82.68		73.99		57.84		42.26		91.46
S.D.	5.90		5.96		7.51		7.12		5.23		4.00		5.02		3.64		4.77		5.02		7.88		6.88		4.47
SKEW	-0.19		0.45		0.36		-0.09		0.79		0.53		1.26		0.67		0.09		-0.10		0.20		0.43		2.09
MAX	51.00		63.00		71.00		88.00		106.00		101.00		112.00		100.00		93.00		86.00		75.00		59.00		112.00
MIN	24.00		28.00		37.00		57.00		70.00		77.00		79.00		81.00		72.00		61.00		42.00		30.00		85.00
YRS	87		89		79		89		88		86		90		87		88		85		85		84		50