WILLOW RESERVOIR, WI

Total of Precipitation (Inches)

(479236)

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
1934	-----	z	-----	z	-----	z	3.14		1.67		3.67		1.43		4.11		9.15		3.26		4.66		1.26		32.35	c
1935	1.96		0.57		1.25	a	1.16		1.80		5.49		8.32		4.09		1.95		4.01		1.28		0.72		32.60
1936	1.48		1.39	s	2.99		1.29	o	3.38		1.69		1.40		5.37		3.00		1.92		1.07		1.79		24.09	b
1937	1.33	u	2.31	a	0.18	a	2.49		2.66	s	1.27		5.09		1.61		3.36	n	2.63	t	1.99	p	0.80	s	12.95	f
1938	1.10	a	0.89	p	2.72		2.68	s	5.95		4.43	s	7.71	q	2.06	x	3.52	u	1.65		3.00	p	1.14	p	11.42	h
1939	1.89	i	1.73	q	0.45	y	2.49		2.80	w	4.17	u	1.87	t	2.30		1.40	w	1.48	t	0.15		0.58	y	4.94	i
1940	0.51		1.40		0.77	a	2.30		3.62	a	5.07		3.90		5.22		1.97		1.56		3.52		1.43		31.27
1941	0.68		0.64		0.49		1.36		3.82		1.50		4.00		7.51		5.63		4.30	s	1.11		1.00		27.74	a
1942	0.45		0.52		3.36	l	1.57		7.53		4.02		4.45		2.21		8.72		1.57		1.73		1.51	a	34.28	a
1943	1.12	a	0.72		1.78	a	1.31		4.80		7.59		1.82	s	4.94		2.30		3.00		1.80	v	0.00		27.56	b
1944	0.93		0.67		1.93		1.25		5.11		4.69		1.19		1.98		3.17		0.89		1.23		0.50		23.54
1945	0.60		2.31		1.76		4.64		3.35		4.73		3.70		5.35		2.34		1.10		2.85		1.28		34.01
1946	1.94	a	1.00	n	1.01		0.48		2.05		10.18		3.01		2.73		3.36	t	3.66		2.06	v	1.18		26.24	c
1947	0.61	a	0.60		0.56		4.12		2.37		2.79	u	0.92	x	3.84		3.42		1.18		2.71	l	0.62		17.32	c
1948	0.63		1.21		1.01		2.13		0.57		2.32		3.22		3.35		2.75		0.97		2.75		0.91		21.82
1949	1.57		0.32		-----	z	1.49		2.44	y	6.41		8.21		1.65		3.02		2.22		1.78		0.96		27.63	b
1950	2.92		0.40		2.20		2.18		2.72		3.37		3.89		3.28		1.06		1.87		1.65		1.13		26.67
1951	0.26		1.91		2.39		2.11		4.24		3.89		7.61		5.42		6.94		3.67		1.36		1.32		41.12
1952	1.03		0.52		1.42		1.46		3.60		5.09		5.60		4.74		0.41		0.21		0.86		1.03		25.97
1953	0.73		1.47		1.96		2.73		2.47		6.53		2.88		1.65		0.94		0.12		1.34		1.98		24.80
1954	0.70		0.64		1.76		2.74		4.76		4.03		2.61		3.43		5.24		3.57		0.61		0.25		30.34
1955	0.94		0.79		2.08		2.26		4.60		2.02		4.02		4.18		1.33		3.34		1.22		1.02		27.80
1956	0.39		0.23		1.27		0.99		2.71		6.99		4.42		4.99		1.31		0.64		2.81		0.31		27.06
1957	0.33		0.86		0.66		1.06		2.56		4.56		3.69		6.43		2.80		1.31		2.05		0.54		26.85
1958	0.73		0.07		0.58		1.65		2.96		3.13		6.00		5.11		4.05		2.55		1.48		0.35		28.66
1959	0.48		0.53		0.91		2.47		2.70		3.59		5.05		8.61		7.12		3.79		0.90		2.12		38.27
1960	0.85		0.58		0.41		3.45		8.18		3.72		1.93		6.96		3.00		1.56		2.77		0.56		33.97
1961	0.14		1.69		1.91		1.54		4.21		2.41		4.42		2.24		2.93		4.09		2.13		1.50		29.21
1962	1.00		1.63		0.65		1.46		4.87		2.12		2.99		4.66		3.93		2.51		0.84		0.75		27.41
1963	0.41		0.49		1.30		2.04		3.02		3.92		1.77		3.33		3.15		1.87		0.82		1.18		23.30
1964	0.91		0.38		1.17		2.82		3.47		1.53		3.64		5.85		3.86		0.46		4.65		1.76		30.50
1965	0.70		1.50		2.28		3.15		5.25		2.73		2.85		1.53		4.53		0.67		3.27		1.57		30.03
1966	1.02		0.78		3.42		2.00		0.68		2.92		2.25		8.76		2.45		3.62		1.21		1.75		30.86
1967	2.64		0.83		1.42		4.26		1.53		4.64		1.63		5.55		2.91		3.11		0.30		0.57		29.39
1968	0.99		0.33		1.01		2.62		6.44		10.27		6.21		0.99		7.22		2.60		0.85		3.02		42.55
1969	2.47		0.17		0.65		1.52		2.99		4.70		4.31		0.85		2.06		3.18		1.08		1.30		25.28
1970	0.79		0.21		0.95		1.10		4.84		4.18		4.30		0.38		5.67		4.42		2.03		1.21		30.08
1971	2.18		2.76		1.10		0.82		2.90		4.89		4.43		3.06		6.11		3.15		1.55		1.65		34.60
1972	1.22		0.92		2.36		2.37		1.24		2.97		3.25		7.07		4.20		2.87		2.06		2.24		32.77
1973	0.78		0.55		3.06		2.28		7.32		3.43		3.44		6.10		4.19		1.84		1.26		1.16		35.41
1974	0.48		0.70		0.46		2.76		3.70		2.96		3.12		6.58		2.92		1.10		2.11		0.68		27.57
1975	1.73		0.85		1.27		3.16		2.49		4.19		1.93		5.51		2.46		1.23		4.66		1.50		30.98
1976	1.54		1.19		2.50		1.60		1.20		1.53		1.70		1.58		0.51		0.36		0.39		0.48		14.58
1977	0.58		0.52		3.56		4.72		1.43		3.99		5.00		6.97		4.90		1.78		1.58		1.38		36.41
1978	0.79		0.37		0.22		2.61		5.05		3.75		6.88		6.41		4.15		1.46		2.00		1.37		35.06
1979	1.06		1.74		3.18		1.27		3.25		4.16		3.27		3.03		0.87		4.65		2.05		0.63		29.16
1980	1.48		0.13		0.45		1.02		2.01		6.57		3.89		8.23		5.70	a	2.22		0.78		0.86		33.34
1981	0.17		1.44		0.61		3.34		3.95		11.05		1.70		1.26		1.46		2.36		0.15		0.83		28.32
1982	1.68		0.22		1.28		4.37		3.69		1.86		6.66		3.34	a	4.70		3.03		1.37		2.02		34.22
1983	1.44	a	0.70		1.62		0.98		4.04		1.70		4.22		4.32		5.77		3.86		3.89	e	1.14	c	33.68
1984	0.69	b	1.50		1.22		2.96		1.28		3.33		1.69		3.46		5.52		2.76		1.03		2.73	a	28.17
1985	0.35		1.29		2.31		3.27	c	4.82		3.28	i	4.06		4.12		9.91		4.08		4.49	a	1.47		40.17	a
1986	0.60		0.76		1.86		2.22		0.56		5.70		4.56		4.27		7.25		2.48		1.10		0.31		31.67
1987	0.61		0.02		0.79		0.88		2.14		2.70		4.37		1.48		1.61		2.61		2.58		1.29		21.08
1988	0.76		0.10		1.83		0.99		1.02		1.68		3.33		5.75		3.78		1.57		3.34		0.90		25.05
1989	0.71		0.27		1.31		1.34		3.14		2.21		1.21		4.70		1.39		1.42		1.18		0.59		19.47
1990	0.51		0.60		1.96		2.67		4.08		3.38		2.45		6.85	c	7.24	a	3.88		0.88		0.71		35.21
1991	0.28		0.74		3.08		3.35		4.66		-----	z	7.16		2.45		4.65		2.79		6.25		0.78	m	35.41	b
1992	0.42		0.64		1.40		1.91		3.57		2.14		2.40		2.32		3.87		1.81		2.63		1.41		24.52
1993	1.16	b	0.04		0.27	m	2.85		5.20		5.91		2.31		2.36	a	2.82		2.24		1.75		0.49		27.13	a
1994	0.82		0.59		0.70		2.54		2.88		3.86		2.95		2.75		10.67		2.66		1.90		0.30	a	32.62
1995	0.55		0.43		1.76		1.51		3.39		1.87		4.13		10.59		2.58		5.45		1.29	n	1.12		33.38	a
1996	2.88		0.57		2.00		2.32		1.14		4.77		6.47		5.14		2.84		4.22		2.85		2.35		37.55
1997	2.93		0.34		1.37	l	0.56		2.54		5.72		6.36	a	3.14		4.11		2.96		0.72	a	0.56		29.94	a
1998	1.33		0.93		0.65		1.49		3.08		4.68		1.02		1.87		1.59		1.47		1.38		0.78	a	20.27
1999	2.11	a	1.58		0.60		1.76		6.51		4.32		7.35		2.77		2.07		1.56		1.22		0.55	a	32.40
2000	0.96		1.59		1.12		2.41		2.40		5.48		7.23		1.92		2.92		1.27		1.82	b	0.99		30.11
2001	1.11		1.09		0.45		4.95		4.87		4.45		3.12		2.97		2.50		2.55		2.64		1.57	d	32.27
2002	0.32		1.94	a	3.09	c	5.04		2.28		3.93		6.44		4.83		6.10	a	4.51	h	-----	z	0.85	a	34.82	b
2003	0.36	a	0.61	d	1.76		4.13		3.81		4.04		3.30		1.82		2.44		1.43		2.28		1.44		27.42
2004	0.83		2.09		3.49		2.23		4.37		2.27		2.14		2.92		2.22		5.09		0.10	q	1.58	a	29.23	a
2005	1.30		1.04		1.25		1.61		1.68		3.84		1.82		1.05		3.27		6.78		2.36	a	0.92		26.92
2006	0.98		0.57		1.81	l	1.27		3.08		0.92		6.89		4.38		1.77		2.08		1.99		1.69		25.62	a
2007	0.33	a	0.43		1.19	b	1.74		2.92		4.36		3.00	b	2.77		2.73		4.76		0.89		1.80		26.92
2008	0.77	b	0.73	a	0.84		3.71	b	2.63		2.32		2.92		1.51		2.65		1.74		1.38		1.91		23.11
2009	0.72		0.71		1.04		3.37		2.31		1.84		2.37		4.05		0.44		5.38		0.43		1.78		24.44
2010	0.98		0.49	c	0.37	j	0.86		2.91		11.38		6.56		5.67		7.61		2.98		1.48		1.49	c	42.41	a
2011	0.82	v	0.24	x	1.92	v	2.70	r	3.31	u	4.78	u	2.52	x	3.71	v	1.67	s	-----	z	-----	z	1.53	v	0.00	l
2012	1.21	v	1.40	x	0.54	k	2.10		4.60		4.12	c	3.96	a	1.54		1.18		3.24		1.38	c	1.01		23.13	c
2013	1.62	a	1.08		1.49	b	4.82		4.00		5.87	b	1.23	c	5.19	c	1.34	a	5.01	e	2.03		1.94		35.62
2014	1.30		1.23		0.86	a	4.60		3.52		5.70	l	3.15		5.29	c	5.87		3.56		2.77		1.83		33.98	a
2015	0.53		0.28		0.77		2.47		4.64		3.85		2.49		3.73		2.68		3.20		3.89		2.98	f	28.53	a
2016	1.06		0.94		2.88	g	2.78	a	3.98		6.84		5.56		5.23		6.56		4.70	f	1.90		1.68		36.53	b
2017	1.66	a	1.40		1.39		5.11		6.00		6.26		2.02		6.65	e	3.70		4.86		1.11		1.56		41.72
2018	1.57		1.20		1.50	d	2.48		0.79		6.87		4.37		2.74		3.60		5.95		2.10		0.56		33.73
2019	0.81		4.64		0.85		3.37		6.48		2.70		5.18		3.27		4.99		2.67		1.53		3.37		39.86
2020	1.13		0.25		2.65		2.86		2.13		3.92		10.40		2.67		3.72		1.44		1.44		0.43		33.04
2021	0.42		1.32		1.94		5.16		1.92		5.22		4.72		4.49		2.05		1.16		1.51		2.30		32.21
2022	0.74		0.76		2.67		3.63		3.49		2.04		1.93		4.34		1.16		1.35		3.23		1.75		27.09
2023	1.56		1.55		2.03		4.31		1.48		1.98		3.51		1.83		3.34		4.34		0.52		0.70		27.15
2024	0.50		0.55		2.55		2.08	k	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	3.60	i
Period of Record Statistics
MEAN	1.02		0.91		1.54		2.47		3.41		4.15		3.95		4.02		3.71		2.63		1.88		1.23		29.99
S.D.	0.64		0.71		0.85		1.19		1.64		2.14		1.95		2.06		2.22		1.42		1.17		0.65		5.49
SKEW	1.28		2.15		0.59		0.58		0.56		1.30		0.80		0.60		0.98		0.53		1.27		0.70		-0.05
MAX	2.93		4.64		3.56		5.16		8.18		11.38		10.40		10.59		10.67		6.78		6.25		3.37		42.55
MIN	0.14		0.02		0.18		0.48		0.56		0.92		1.02		0.38		0.41		0.12		0.15		0.00		14.58
YRS	86		84		80		87		86		83		85		88		85		84		81		84		65