WATERLOO, OR

Total of Precipitation (Inches)

(359083)

File last updated on April 17, 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
1923	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	1.55		6.95	d	2.95	b	7.06		18.51	h
1924	2.57	f	4.61		2.36		1.39		0.70		-----	z	-----	z	-----	z	-----	z	6.66	q	10.04		3.99		23.09	f
1925	4.94		5.66		3.10		3.95		1.86		1.11		-----	z	0.99		-----	z	0.00		5.54		4.07		31.22	b
1926	3.52		8.96		0.85		0.93		2.87		0.33		0.15		1.90		1.80		4.67		11.02	i	4.86		30.84	a
1927	9.56		8.49	j	4.27		2.32		2.95		2.82	v	0.00		0.42		5.94		-----	z	-----	z	1.30		26.76	d
1928	4.47		1.76		7.71	r	5.21		1.06		0.33		-----	z	0.00		1.49		2.58		7.99		8.40		33.29	b
1929	2.03	a	0.52		3.70		4.77	n	0.80		2.26		0.00		0.04		0.22		1.32		0.62		10.79	l	11.51	b
1930	1.37		4.74		1.75		3.55		3.39		1.78		0.02		0.00		1.96		2.49		3.85		3.61		28.51
1931	4.45		3.13		6.14		3.41		0.96		3.79		0.00		0.00		1.65		4.03		8.47		9.69		45.72
1932	6.80		2.80	a	6.74		3.94		4.38		0.43		0.21		0.48		0.23		3.70		4.25		5.53		39.49
1933	5.87	e	4.99		5.78		1.58		3.83		1.37		0.00		0.45		2.41	a	2.86		1.90		9.94		40.98
1934	3.13	n	1.24		4.15		3.68		2.89		1.43		0.23		0.52		1.15		4.35		9.91		7.50		37.05	a
1935	-----	z	3.49		5.37		3.05		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	5.38		17.29	h
1936	8.72		5.42	j	2.99		2.12		-----	z	-----	z	-----	z	0.00		-----	z	0.29		0.30		5.53		19.95	e
1937	5.32		10.66		3.49	i	9.18	f	2.44		5.82		0.01		0.97		0.92		4.93		10.35		10.09		51.51	b
1938	5.29		7.45		10.44		3.86		1.79		0.24		0.35		0.05		1.50		3.32	s	5.44		4.86		41.27	a
1939	5.71		5.56		3.62		0.69		2.18		1.81		1.03		0.94		1.34		3.30		1.33		7.75		35.26
1940	3.72		12.43		5.35		1.96		1.66		0.26		0.65		0.01		4.58		5.25		6.46		5.59	j	42.33	a
1941	4.81		1.75		2.35		2.16	o	5.09		1.78		0.08		1.53		4.27		3.83		8.27		10.58		44.34	a
1942	4.90		4.73		2.36		1.91		5.27		2.23		0.89		0.09		0.03		1.77		13.82		11.36		49.36
1943	7.31		4.36		4.81		5.51		1.91		3.62		0.56		2.05		0.15		6.35		2.98		2.18		41.79
1944	3.77		3.87		2.21	a	3.99		1.47		1.74		0.07		0.02		2.23		1.07		6.14		2.56		29.14
1945	4.51		5.72		7.90		4.35		4.77		0.31		0.41		0.37		3.10		1.94		12.76		6.62		52.76
1946	6.05		5.34	h	6.80		1.97		1.06		1.88		0.72		0.20		1.67		4.82		8.70		4.90		38.77	a
1947	3.49	k	2.80		5.82		3.71		0.28		5.51		-----	z	0.69		1.26		11.97		6.12		4.53		42.69	b
1948	9.69	u	7.03	a	5.71	g	4.86		4.55		1.24		-----	z	-----	z	-----	z	2.79		7.16		10.72		38.35	e
1949	0.51		14.88		3.93		2.06		2.90		0.66		-----	z	-----	z	-----	z	0.00		5.20	a	4.22		34.36	c
1950	9.71	a	4.61		3.30		-----	z	-----	z	0.02	g	0.05		-----	z	-----	z	-----	z	10.36		4.78		32.81	f
1951	7.62		5.70		5.83		1.01		-----	z	-----	z	-----	z	-----	z	-----	z	7.23		8.05		8.42		43.86	e
1952	5.06		4.88		4.80		1.48		0.99		-----	z	-----	z	0.02		0.66		0.45		1.15		8.24		27.73	b
1953	12.16		6.26		4.72		2.48		6.20		2.65		0.00		2.08		0.63		4.98		8.84		9.10		60.10
1954	12.22		4.63		3.36		3.83		1.43		2.96		0.30		1.70		2.06		3.87		5.89		7.32		49.57
1955	2.96		2.49		5.84		6.50		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	5.40	q	15.75		33.54	g
1956	10.88		5.68		5.75		1.68		3.38		2.75		0.03		0.67		1.18		7.88		1.53		4.47		45.88
1957	3.32		6.23		8.04		2.62		4.29		1.43		0.28		0.62		1.13		4.02		3.13		11.46		46.57
1958	9.93		7.10		2.88		3.84		1.43		4.43		0.00		0.13		2.25		2.03		10.09		5.22		49.33
1959	13.09		4.39		4.94		1.89		4.95		1.52		0.82		0.07		2.96		2.94	c	2.66		4.23		44.46
1960	4.64	d	6.01		8.76		4.50		6.08		0.42		0.00		1.02		0.39		2.75		11.56		3.19		49.32
1961	5.09		11.92		8.21		2.32		2.81		0.95		0.66		0.20		1.76		3.72		6.94		6.74		51.32
1962	1.79		3.65		6.54		3.58		3.60		0.92		0.00		1.48		1.96		4.78		6.63		3.69		38.62
1963	1.66		5.91		6.85		5.04		4.84		2.21		1.11		0.44		1.65		3.61		8.40		3.27		44.99
1964	11.77		1.48		4.18		2.07		1.41		-----	z	0.71		1.68		0.51		1.45		7.92		15.48		48.66	a
1965	9.77		1.83		0.75		3.41		1.80		0.41		0.29		1.49		0.08		3.13		7.17		8.19		38.32
1966	8.84		2.20		5.91		1.02		0.87		1.04		0.71		0.05		1.54		2.89		8.83		7.19		41.09
1967	8.49		2.37		4.13		3.08		1.52		1.01		0.00		0.00		1.29		6.80	a	2.94		6.35		37.98
1968	6.68		7.06		3.02		1.63		4.10		1.60		0.14		5.52		2.79		4.85		6.84		9.20		53.43
1969	9.43		3.34		3.16		2.55		1.83		4.57		0.18		0.04		1.80		5.20		3.04		8.73		43.87
1970	11.32		4.80		3.03		3.49		1.45		0.77		0.06		0.05		2.23		3.17		7.52		9.24		47.13
1971	8.49		5.44		7.46		4.98		1.91		3.50		0.09		1.53		3.84		3.53		8.74		6.31		55.82
1972	7.47		5.75		7.77		6.57		3.20		1.19		0.06		1.12		2.48		1.29		4.18		9.63		50.71
1973	5.71		2.02		4.17		1.82		1.33		2.12		0.00		0.80		2.77		2.34		16.35		10.73		50.16
1974	9.43		7.06		8.82		2.52		1.37		0.81		1.29		0.52		0.28		2.30		5.81		8.60		48.81
1975	5.84		5.79		5.34		2.14		2.63		1.15		0.33		2.34		0.00		6.62		6.05		5.69		43.92
1976	6.81		5.99		4.42		3.28		2.62		1.01		0.77		2.52		1.37		1.38		2.22		1.77		34.16
1977	1.27		3.28		5.18		1.43		4.59		1.39		0.42		2.34		2.11		2.44		7.44		9.56		41.45
1978	6.92		3.11		1.30		5.06		2.62		1.32		0.84		3.52		2.71		0.82		5.13		4.11		37.46
1979	2.47		8.71		2.93		3.72		2.10		0.50		0.21		1.87		0.78		7.38		5.13		6.88		42.68
1980	5.92	b	4.41		4.64		3.56		1.53		3.34		0.34		0.08		1.54		1.90		6.55		11.52		45.33
1981	2.04		5.61		4.06		2.83		3.38		3.55	b	0.16		0.00		2.21		4.88		5.91		12.18		46.81
1982	7.02		6.72		3.69		3.33		0.72		2.53		0.97		1.13		2.37		3.98		5.01		9.22		46.69
1983	6.94		10.32		7.74		2.75		2.05		3.42		2.84	l	2.60		0.33		2.00		9.73		4.63	i	47.88	b
1984	2.45		5.81		5.16		4.73		4.38		5.07		0.15		0.00		1.10		4.97		14.78		3.64		52.24
1985	0.59		4.70		4.51		1.59		0.53		-----	z	-----	z	-----	z	-----	z	-----	z	4.38		3.83		20.13	e
1986	7.63		9.87		3.42		2.72		-----	z	-----	z	-----	z	-----	z	4.57		2.24		9.41		2.86		42.72	d
1987	6.68		3.84		5.49		2.21		3.19		0.56		2.14		0.10		0.35		0.15		4.52		10.16	f	29.23	a
1988	7.67		1.35		4.58		6.37		4.00		2.53		0.42		0.00		1.73		0.28		12.32		3.41		44.66
1989	4.77		2.78		8.52		1.49		2.61		1.37		0.39		1.90		1.04		2.36		3.70		2.46		33.39
1990	8.01		4.40		2.98		2.00		2.79		1.81		0.95		1.92		0.62		7.23		6.63		3.66		43.00
1991	2.74		4.03		6.39		3.82		5.86		2.35		0.29		0.66		0.40		3.06		7.49		4.79		41.88
1992	4.58		4.74		1.45		6.13		0.56		2.24		0.69		0.33		1.29		3.19		6.36		7.38		38.94
1993	4.88		2.37		6.62		7.59		5.76		4.03		1.54		0.74		0.00		1.67		2.13		5.59		42.92
1994	4.72		3.82		4.17		3.00		1.21		2.50		0.09		0.01		1.26		5.15		10.62		5.64		42.19
1995	8.98		4.03		5.11		5.24		2.27		2.65		0.78		1.06		2.93		4.20		6.38		9.44		53.07
1996	10.02		11.02		1.98		5.93		4.86		1.46		1.16		0.23		2.10		6.22		10.86		15.58		71.42
1997	7.49		3.52		8.17		3.19		2.13		2.45		0.57		1.32		3.86		5.26		4.33		2.19		44.48
1998	8.67		5.86		4.81		3.31		6.91		1.52		0.16		0.00		0.88		3.40		10.46		10.15		56.13
1999	8.42		10.07		5.58		2.49		3.47		1.21		0.10		0.74		0.00		2.55		8.23		5.32		48.18
2000	8.50		7.12		3.63		2.16		3.21		1.54		0.22		0.05		0.80		3.38		2.47		4.66		37.74
2001	2.76		1.78		3.82		3.23		1.69		2.19		0.34		0.19		0.68		3.95		8.65		7.77		37.05
2002	8.65		4.01		5.36		2.66		1.93		1.67		0.05		0.24		1.01		1.71		4.24		12.26		43.79
2003	7.41		3.95		6.92		6.86		1.31		0.31		0.00		0.37		1.67		2.57		5.74		11.02		48.13
2004	7.69		4.71		1.92		2.21		2.00		3.15		0.33		2.72		2.28		4.03		3.62		4.34		39.00
2005	1.45		1.34		4.43		4.16		5.47		3.06		0.29		0.42		0.94		4.37		6.82		6.28	b	39.03
2006	13.80		3.40		4.76		3.73		-----	z	1.07		0.19		0.00		1.36		1.75		15.98		8.94		54.98	a
2007	4.02		6.12		2.06	b	3.27		1.38		0.97		0.58		0.78		1.91		5.40		4.97		7.76		39.22
2008	9.69		2.97		6.01		3.88		1.26		1.53		0.00		1.34		0.86		-----	z	6.87		6.58		40.99	a
2009	4.20	a	4.28		4.28		2.14		3.42		1.17		0.18		0.13		1.81		-----	z	7.11		5.57		34.29	a
2010	6.23		4.03		6.75		6.21		3.65		3.77		0.14		0.62		2.93		5.53	a	8.71	a	8.97		57.54
2011	3.29		3.82		9.09		4.48		4.31		1.68		1.50		0.10		0.32		2.68		5.94		4.92		42.13
2012	8.44		4.42		11.66		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	24.52	i
Period of Record Statistics
MEAN	6.32		5.05		4.93		3.32		2.77		1.94		0.40		0.83		1.62		3.56		6.73		6.93		44.83
S.D.	3.06		2.71		2.19		1.53		1.58		1.28		0.44		0.99		1.18		2.11		3.39		3.21		7.48
SKEW	0.19		1.19		0.51		0.66		0.60		0.98		1.55		1.93		1.11		0.88		0.52		0.61		0.64
MAX	13.80		14.88		11.66		7.59		6.91		5.82		2.14		5.52		5.94		11.97		16.35		15.75		71.42
MIN	0.51		0.52		0.75		0.69		0.28		0.24		0.00		0.00		0.00		0.00		0.30		1.30		28.51
YRS	84		86		86		84		81		77		74		79		79		80		85		85		59