CORVALLIS STATE UNIVERSITY, OR

Total of Precipitation (Inches)

(351862)

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
1893	2.37	u	5.40		4.55	l	4.48	k	3.41	p	0.60	y	0.00		0.09		3.24	r	5.67	s	8.28	m	3.92	n	5.49	i
1894	12.38	g	5.29	o	8.62	o	2.81		1.90		2.94		0.10		0.05		1.20		4.45		2.10		5.26		20.81	c
1895	11.65		1.55		4.45		3.06		4.36		0.28		-----	z	0.00		2.15	t	0.00		4.64		11.21		41.20	b
1896	8.35		3.34	j	3.13		6.98		5.71		0.98		0.00		1.16		0.41		3.30		16.69	i	7.81	g	30.02	c
1897	2.84	b	6.98		-----	z	1.73		1.09		2.09		0.09		0.38		1.57		2.38		11.66		7.09		37.90	a
1898	3.82		5.48		2.34		2.44		2.26		-----	z	0.23		0.12		3.15		1.59		8.63		3.62	a	33.68	a
1899	6.26		5.61		5.16		3.64		2.26		0.42		0.07		2.76		1.04		3.97		10.93		7.57		49.69
1900	4.74		4.01		4.66		1.72		3.16		2.03		0.26		0.20		2.51		5.88		3.46		5.99		38.62
1901	8.47		6.28		3.59	l	3.09		1.86		1.19	o	0.00		0.18		2.72		2.23		6.21		5.08		36.12	b
1902	4.44	a	11.89	b	6.96		3.94	l	2.86		0.27		1.44		0.00		1.16		1.71		11.24	h	9.92		40.65	b
1903	7.24		1.64		2.68		2.67		0.95		1.09		0.34		0.44		0.37		1.73		11.84	g	3.10	r	19.15	b
1904	5.56		15.23		11.70		1.82		0.76		0.32		0.85		0.11		0.59		2.74		7.48		8.90	l	47.16	a
1905	4.97		2.95		7.05		0.67		2.52	q	1.42		0.00		0.00		1.25		4.75		3.05		6.36	i	26.11	b
1906	7.22		6.76		2.42		2.38		3.07		3.42	n	0.00		0.00		2.24		2.70	q	9.35		6.75		40.19	b
1907	8.97		3.83	q	5.39		2.98		1.27		0.74	s	0.24		1.15		1.17		1.32		7.62	m	13.30	g	22.49	d
1908	4.44	l	4.10		4.83		1.99		2.89		1.38		0.00		1.00		0.23		4.34		4.06	q	5.46	p	20.76	c
1909	13.61		9.10	e	1.93		0.26		1.39		0.30		1.10		0.11		1.16		4.51		11.53		-----	z	45.00	a
1910	4.52		7.54		1.21		2.47		0.83		1.73		0.00		0.01		0.85		2.56		10.45		4.33		36.50
1911	11.34	a	2.61		0.75		3.00		4.21		1.05		0.03		0.02		4.27		1.33		4.58		5.27		38.46
1912	8.71		5.23		3.66		2.00		2.14		1.49		0.18		2.18		-----	z	3.41	s	8.90		6.52		41.01	b
1913	6.36		1.22		4.27		2.76		1.89		2.88		0.93		0.37		2.33		3.57		6.01		3.11		35.70
1914	11.47		4.42		2.65	q	4.37		1.59		2.15		0.00		0.00		3.84		4.97		4.56		3.64		41.01	a
1915	6.19		3.60	j	1.83		1.40		2.39		0.54		1.09		0.00		0.39		1.29		9.80		8.30		33.22	a
1916	6.28		6.66	o	10.81		1.91		2.77		1.45		2.34		0.03		0.60		1.11		6.62		5.71		39.63	a
1917	3.14		3.75		4.85		4.85		1.50		0.86		0.00		0.01		2.19		0.00		4.85		13.66		39.66
1918	7.26		7.69		3.20	a	1.26		1.21	m	0.00		-----	z	0.43		0.56		2.60		4.69		4.27		31.96	b
1919	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1920	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1921	7.15		5.38		4.23		1.99		1.57		0.94		0.00		0.08		1.99		3.63		10.71		3.48		41.15
1922	3.80		4.85		5.81		1.77		0.76		0.02		0.00		0.87		2.01	a	4.88		3.07		11.11		38.95
1923	10.30		2.16		2.57		2.71		0.99		1.09		1.08		0.19		0.71		2.39		3.98	n	8.32		32.51	a
1924	4.28		3.75		2.92		0.72		0.47		0.66		0.00		1.08		2.22		7.60		8.90		5.80		38.40
1925	7.29		7.76		1.44		3.12		2.04		1.16		0.06		0.87		1.05		0.05		5.11		4.12		34.07
1926	3.48		10.30		0.43		0.80		1.81		0.09		0.00		1.66		0.81		4.27		9.86		6.53		40.04
1927	11.69		9.01		2.95		1.56		1.83		2.45		0.02		0.21		2.53		2.96		8.04		4.62		47.87
1928	5.06		1.64		7.95		3.97		0.48		0.40		0.03		0.00		1.69		1.60		9.43		7.02		39.27
1929	3.60		0.36		2.49		3.63		0.40		1.28		0.00		0.03		0.26		0.66		0.30		11.44		24.45
1930	2.99		5.07		1.47		2.97		1.14		0.94		0.00		0.00		2.01		1.43		3.33		2.33		23.68
1931	4.72		2.83		5.72		1.28		0.19		3.35		0.00		0.00		1.50		3.82		6.58		9.12		39.11
1932	6.55		2.08		5.06		2.36		2.24		0.24		0.61		0.83		0.00		3.35		4.89		8.09		36.30
1933	7.93		5.14		4.03		0.76		3.70		0.84		0.00		0.69		1.68		2.67		1.00		14.37	h	28.44	a
1934	5.60		0.98		2.13		1.94		1.28		0.24		0.26		0.10		0.57		4.57		9.71		8.10		35.48
1935	4.21		3.37		4.52		2.00		0.52		0.21		0.51		0.10		1.28		2.61		2.26		4.76		26.35
1936	10.82		5.35		1.97		1.43		3.41		1.70		0.32		0.00		0.89		0.16		0.24		5.82	a	32.11
1937	7.61		7.55		3.95		7.99		2.32		3.58		0.08		0.45		1.06		2.59		9.71		11.17		58.06
1938	4.03		6.33		7.42		1.51		0.64		0.08		0.17		0.00		1.35		2.92		4.10		3.49		32.04
1939	3.92		3.60		2.44		0.22		1.71		0.70		0.43		1.14		0.43		3.26	a	0.31		8.53		26.69
1940	4.41		9.80		4.93		2.26		2.62		0.12		0.16		0.00		2.75		4.14		4.46		4.71		40.36
1941	4.38		1.65		1.22		2.01		2.42		1.03		0.00		1.09		3.96		-----	z	5.56		7.99		31.31	a
1942	4.95		3.36		1.04		1.62		2.56	a	1.11		0.28		0.00		0.00		1.22		12.69		10.37	c	39.20
1943	5.09		3.78		5.60		2.01		1.16		1.32		0.22		1.62		0.02		5.54		2.51		2.66		31.53
1944	3.06		2.25		2.23		2.93		0.85		0.62		0.14		0.00		2.18		1.36		4.63		2.74		22.99
1945	4.34		4.97	k	5.60		2.33		3.10		0.22		0.14		0.08		0.94		0.89		10.08		5.03		32.75	a
1946	4.79		4.28		4.59		0.68		0.59		0.98		0.57		0.01		2.17		4.22		6.78		3.76		33.42
1947	2.26		2.97		4.86		1.67		0.16		2.55		2.72		0.46		0.66		9.05		3.10		3.45		33.91
1948	7.08		5.10		3.86		2.64		2.67		0.39		0.70		0.06		1.87		2.34		5.97		7.46		40.14
1949	-----	z	10.58		2.19		0.55		2.06		0.68		0.03		0.27		1.56		1.72		4.89		4.19		28.72	a
1950	12.17		5.23	a	4.16		0.99		0.65		0.88		0.21		0.76		0.97		9.70		7.73		5.13		48.58
1951	7.36		4.62		4.16		0.65		1.32	a	0.02		0.11		0.08		1.23		6.78		5.84		6.13		38.30
1952	5.08		5.54		1.75		0.92		0.35		3.84		0.00		0.16		0.40		1.02		1.49		7.13		27.68
1953	12.23		5.43		4.50		1.97		3.31		1.83		0.00		1.74		0.49		3.93		6.96		7.82		50.21
1954	11.86		5.25		2.91		2.71		0.78		3.11		0.53		0.64		1.60		3.56		5.79	a	6.92		45.66
1955	3.02	a	2.29		6.12		4.00	a	1.01		0.85		0.62		0.00	a	1.97		6.59		7.12	a	12.64		46.23
1956	11.89		5.48		5.89		0.93		1.98		1.14		0.02		0.34		1.12		5.86		1.38		4.56		40.59
1957	2.78		4.89		7.01		2.11		3.21	a	1.07		0.17		0.22		1.50	a	3.14		2.81		10.38		39.29
1958	8.15		7.81		2.55		3.66		1.12		2.91		0.02		0.02		1.30		2.54		8.49		4.15		42.72
1959	10.52		4.56		2.00	f	0.84		2.20		1.31		0.32		0.00		1.60		1.57		2.58		3.35		28.85	a
1960	4.38		6.49		7.18		3.29		3.92		0.22		0.00		0.64		0.52		2.52		10.50		3.32		42.98
1961	4.80		9.91		7.46		2.23		2.05		0.41		0.59		0.33		1.18		3.84		5.79		5.58		44.17
1962	1.21		3.82		6.37		2.90		2.31		0.39		0.00		0.57		1.60		4.62		7.89		2.90		34.58
1963	1.64		5.23		6.30		4.64		3.94		0.96		0.52		0.65		0.94		2.77		7.04		3.91		38.54
1964	11.68		0.79		4.33		1.61		0.55		0.88		0.57		0.23		0.31		1.25		9.23		13.27		44.70
1965	11.45		1.56		0.59		2.00		1.08		0.52		0.39		0.98		0.04		2.12		8.70		7.69		37.12
1966	10.21		1.78		7.21		0.95		0.49		0.76		0.49		0.27		1.71		3.18		5.27		7.67		39.99
1967	9.50		1.78		4.23		1.60		0.85		0.77		0.00		0.00		0.84		6.19		3.46		6.32		35.54
1968	7.14		7.11		3.91		1.51		3.45		0.79		0.34		5.24		1.99		6.32		6.52		14.42		58.74
1969	9.35		4.27		1.81		1.94		1.64		2.46		0.05		0.00		3.62		2.92		2.86		11.59		42.51
1970	15.51		5.97		2.29		2.66		1.12		0.53		0.12		0.00		1.07		4.04		7.30		12.47		53.08
1971	10.71		5.35		6.16		4.38		2.33		2.48		0.02		0.48		3.10		2.80		9.21		10.13		57.15
1972	10.10		5.13		6.46		4.27		2.36		1.01		0.08		0.24		2.28		0.88		4.92		9.33		47.06
1973	5.56		1.65		3.63		1.75		0.85		1.38		0.02		0.70		2.52		2.70		18.28		12.40		51.44
1974	11.59		7.52		8.87		2.39		1.46		0.61		1.81		0.00		0.07		1.41		6.88		8.15		50.76
1975	4.66		5.48		4.64		2.40		2.07		1.14		0.62		1.68		0.00		4.30		5.51		6.47		38.97
1976	6.59		6.71		4.45		1.98		1.14		0.47		0.90		2.08		1.27		1.25		1.42		1.47		29.73
1977	0.96		2.97		5.09		1.02		3.43		1.13		0.12		1.89		3.58		2.58		8.11		11.03		41.91
1978	7.34		4.28		2.15		4.94		3.61		0.94		0.29		2.34		3.40		0.98		3.14		4.23		37.64
1979	2.57		8.35		2.89		2.93		2.11		0.38		0.43		2.67		2.15		7.21		4.11		6.26		42.06
1980	6.69		3.88		4.02		3.63		1.46		1.75		0.24		0.01		0.96		1.87		6.29		11.33		42.13
1981	2.27		4.44		3.00		2.37		2.99		2.58		0.10		0.01		3.09		5.52		6.73		13.98		47.08
1982	7.21		7.12		3.54		4.57		0.49		1.51		0.43		0.28		1.89		3.64		5.51		10.56		46.75
1983	6.91		10.31		8.78		3.01		1.51		1.39		2.55		2.21		0.53		1.05		9.93		7.35		55.53
1984	3.26		6.92		3.82		3.41		3.67		4.34		0.20		0.00		0.74		4.65		13.55		4.01		48.57
1985	0.25		3.65		4.94		1.05		0.94		2.22		0.54		0.48		0.78		3.89		4.69		3.72		27.15
1986	6.53		9.90		3.04		1.84		2.50		0.31		1.15		0.00		3.56		2.80		8.62		3.50		43.75
1987	8.22		4.50		3.70		1.56		1.40		0.29		2.23		0.17		0.05		0.27		3.90		11.42		37.71
1988	7.12		1.70		3.90		3.33		3.84		1.83		0.09		0.00		0.73		0.14		10.87		3.97		37.52
1989	4.18		3.21		6.80		1.42		1.46		1.14		0.33		0.87		0.60		2.66		3.90		3.07		29.64
1990	9.50		5.79		2.21		2.38		1.43		1.53		0.45		1.72		0.83		4.56		4.87		3.54		38.81
1991	2.68		3.22		5.85		3.47		3.91		1.52		0.38		0.72		0.19		2.55		5.12		4.38		33.99
1992	4.52		4.54		1.04		4.08		0.00		1.18		1.18		0.44		0.55		3.52		4.99		7.38		33.42
1993	4.15		2.20		4.86		6.82		4.51		2.11		0.79		0.31		0.07		1.07		1.03		7.98		35.90
1994	3.89		5.59		3.46		1.94		1.13		1.89		0.01		0.00		0.89		3.84		9.03		6.26		37.93
1995	9.90		4.29		4.74		5.30		1.43		2.36		0.52		0.82		3.14		3.96		7.72		10.12		54.30
1996	10.37		13.63		3.54		4.93		3.98		0.85		0.92		0.14		2.22		5.32		10.20		17.11		73.21
1997	9.08		2.20		6.43		3.60		2.20		2.42		0.38		1.25		3.39		5.50		5.18		3.02		44.65
1998	9.05		7.70		6.69		1.83		5.80		0.97		0.10		0.00		0.88		3.79		12.80		10.40		60.01
1999	9.67		12.61		5.31		1.07		1.99		0.82		0.06		0.35		0.07		2.92		8.99		5.94		49.80
2000	8.13		6.34		3.64		1.63		2.99		1.22		0.16		0.02		0.64		2.97		2.77		4.41		34.92
2001	1.60		1.20		2.85		2.33		1.11		2.02		0.28		0.96		0.54		3.09		8.23		9.34		33.55
2002	9.18		3.77		5.64		1.85		1.75		1.20		0.02		0.29		1.13		0.72		5.41		12.51		43.47
2003	7.22		3.59		7.52		6.48		1.33		0.36		0.00		0.11		1.01		1.98		6.04		11.23		46.87
2004	-----	z	4.95		-----	z	-----	z	1.30		1.51		0.04		1.79		2.42		4.08		2.52		4.57		23.18	c
2005	2.79		0.47		4.34		2.63		4.24		2.02		0.12		0.16		0.39		3.55		6.57		11.84		39.12
2006	13.95		3.15		4.00		2.50		2.45		0.83		0.14		0.05		0.67		1.10		16.18		8.38		53.40
2007	3.90		5.70		2.70		2.00		1.61		0.64		0.43		0.80		1.74		4.34		4.34		9.44		37.64
2008	8.72		2.68		4.50		2.38		0.38		1.04		0.05		1.23		0.85		1.49		4.71		6.01		34.04
2009	3.70		3.31		3.81		1.29		3.65		0.62		0.79		0.25		1.19		2.94		8.14		5.45		35.14
2010	6.76		4.38		6.08		4.38		3.30		2.75		0.10		0.53		2.59		4.85		5.52		10.25		51.49
2011	4.01		3.30		7.69		4.06		3.57		1.18		-----	z	0.03		0.38		2.74		5.51		4.26	a	36.73	a
2012	11.34		3.70		11.47		4.52		2.79		2.27		0.50		0.04		0.33		4.51	d	8.75		8.56		58.78
2013	1.71		1.99		2.58		1.99		2.46		1.28		0.00		0.33		7.06		1.17		2.71	a	2.04		25.32
2014	2.78		8.08		7.44		3.02		2.62		0.67		0.63		0.20		1.36		5.23		6.03		7.90		45.96
2015	3.59		5.21		4.27		1.79		0.81		0.76		0.00		0.42		1.92		2.42		5.81		13.98		40.98
2016	8.73		3.62		8.11		3.19		0.87		0.50		0.50		0.11		0.71		12.15		7.78		5.16		51.43
2017	5.33	a	12.48		8.11		4.14		1.73		1.55		0.00		0.19		1.92		5.66		8.91		3.55		53.57
2018	6.41		2.09		4.55		4.64		0.20		0.79		0.00		0.00		1.15		2.03		4.26		6.93		33.05
2019	3.74		6.22		1.99		6.50		1.92		0.76		0.69		0.12		3.23		2.53		1.20		4.73		33.63
2020	9.39		1.77		3.34		2.12		3.16		1.92		0.82		0.13		1.96		2.26		7.11		7.11		41.09
2021	8.76		6.30		2.53		1.42		0.87		1.75		0.00		0.00		2.84		2.70	a	5.01		10.54	c	42.72
2022	4.67		1.52		4.35		5.75		4.44		2.37		0.16		0.00		0.33		1.02		8.79		6.30		39.70
2023	3.16		2.23		4.68		6.17		0.44		0.09	b	0.00		0.02		2.83		3.06		5.15		8.10		35.93
2024	9.99		5.12		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	15.11	j
Period of Record Statistics
MEAN	6.61		4.99		4.42		2.64		2.00		1.23		0.36		0.51		1.47		3.19		6.36		7.10		40.91
S.D.	3.23		2.87		2.21		1.50		1.22		0.88		0.52		0.76		1.13		2.01		3.26		3.27		8.88
SKEW	0.38		1.02		0.77		1.12		0.68		1.02		2.51		2.81		1.40		1.24		0.61		0.59		0.60
MAX	15.51		15.23		11.70		7.99		5.80		4.34		2.72		5.24		7.06		12.15		18.28		17.11		73.21
MIN	0.25		0.36		0.43		0.22		0.00		0.00		0.00		0.00		0.00		0.00		0.24		1.47		22.99
YRS	125		124		122		126		126		124		126		129		126		125		122		120		101