CORVALLIS WATER BUREAU, OR

Average of Minimum Temperature (Degrees Fahrenheit)

(351877)

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
1936	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1937	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1938	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1939	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1940	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1941	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1942	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1943	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1944	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1945	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1946	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1947	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1948	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1949	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1950	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1951	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1952	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1953	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1954	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1955	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1956	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1957	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1958	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1959	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1960	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1961	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1962	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1963	-----	z	-----	z	-----	z	-----	z	-----	z	47.77	d	47.71		51.45		50.83		43.68		38.30		32.42		44.59	e
1964	32.74		31.70	b	34.10		37.86	a	39.55		47.57		53.10	a	51.20	a	46.20		41.74		33.72	a	33.72	b	40.27
1965	33.58	e	34.56	a	34.76	b	40.20		40.13	a	45.60		50.52		52.57	a	47.90	a	45.45		40.31	a	30.63	a	41.35
1966	32.42		32.57		35.67	a	38.77		40.52		46.48	a	49.97		50.74		49.24	a	41.13		37.90	a	36.40	a	40.98
1967	35.87		32.74	a	33.42		35.80		40.65		49.00		53.52		53.58		52.07		42.61		39.27		33.06		41.80
1968	32.52		37.34		40.84		37.07		42.00		47.41	a	50.26		50.23		47.53		40.03		38.77		31.61		41.30
1969	29.00	a	31.19	a	33.70	a	37.46	b	45.16		51.13		48.19		47.06		47.63		39.68		36.21	a	35.48	b	40.16
1970	35.34	b	34.39		35.23	a	35.50	b	41.29		47.97		47.42		47.48		43.93		37.97	b	36.37		31.48		39.53
1971	30.79	b	31.29		32.61		35.07		41.23	a	44.60		48.55		50.87		44.37		37.84		34.60		32.16		38.66
1972	30.61		33.76		38.03	a	33.67		43.81		47.17		51.39		50.97		45.07		38.90	a	37.45	a	27.83	a	39.89
1973	29.63	a	34.11	a	34.74		37.03		42.17	a	49.00	a	47.16		43.68		46.30		39.29		34.27		36.32		39.48
1974	26.97		32.50		34.97		37.72	a	40.71		47.50		50.16		51.26		48.97		39.10	b	37.63		36.23	a	40.31
1975	36.52		32.70	a	33.39		34.10		41.87		45.90		50.77		49.30	a	47.73		42.06		34.62	a	34.97	b	40.33
1976	32.83	a	31.66		32.87		36.00		40.68		44.27		50.03		51.63	a	49.17		40.35		37.07	a	30.74		39.78
1977	28.39		34.74	a	34.13		37.34	a	40.00	b	47.47		49.26		53.61		47.40		41.90		35.60		36.74		40.55
1978	36.55		38.04		37.73	a	39.38	a	42.21	b	49.97		50.66	b	51.24	b	49.30		41.35		31.33		28.29		41.34
1979	24.29		34.52	a	37.65		39.62	a	44.00	a	46.77		51.60	a	50.81		50.47		45.71		35.00	c	36.20	a	41.39
1980	27.67	a	35.31		35.77		39.53		42.16		46.37		50.68		47.03		47.10		41.16		37.46	b	35.33	a	40.47
1981	33.87		34.46		35.52		39.20		42.97		46.87		50.03	a	52.29		46.97		40.84		38.03	a	36.61		41.47
1982	30.58		32.33	a	34.23	a	33.87		41.23		49.45	a	48.71		50.50	a	47.18	b	40.59	b	32.10		31.70	a	39.37
1983	34.35		36.93		38.37	a	36.27		42.52		45.48	a	51.10		52.03		45.87		40.93	a	40.20		30.06		41.18
1984	33.61		35.03		39.03		38.07		41.90		45.33		49.13		48.20	a	45.77		40.39		36.17		29.03		40.14
1985	26.48		29.86		32.39		40.07		41.29		47.57		51.29		49.03		44.31	a	39.83	a	29.30		24.48		37.99
1986	34.03		36.11		38.29		37.03	a	41.39		49.33		48.19		50.23		44.72	a	40.87		37.47		30.71		40.70
1987	30.71		34.32		35.40	a	37.33		43.37	a	47.86	a	51.20	a	51.06		48.10		43.00		39.24	a	32.33	a	41.16
1988	31.61		33.17		35.10		39.37		41.83	a	46.90	a	50.47	a	49.61		45.93	a	46.07	b	38.62	a	32.23		40.91
1989	33.00		25.32		35.48	b	41.34	a	42.50	a	48.66	a	50.10		50.74		48.66	a	40.10		37.24	a	32.42		40.46
1990	34.30	a	30.71		35.03	b	40.00	b	41.77	a	48.63		52.37	a	52.77		50.50		38.19		36.57		23.73	a	40.38
1991	28.97	b	38.50		32.65		37.73		40.77		44.53		50.13		50.67	a	48.27		40.06		37.80		33.74		40.32
1992	34.67	a	36.97		37.13	a	41.97	a	45.33	a	48.24	a	51.32		49.19		45.27		41.23		37.21	b	33.52		41.84
1993	29.32		31.64		39.03	a	41.20		47.61		49.21	a	50.26		52.48		46.10		41.65		28.72	a	31.48		40.73
1994	34.71		31.29		35.74		38.80		44.35		46.00		49.97		48.68		50.79	a	39.50	e	33.53		35.00		40.70
1995	36.97		38.36		36.16		38.07	a	45.29		48.83		53.74		49.27	a	51.87		40.52		42.30		35.45		43.07
1996	35.61		33.03		36.19		40.40		40.70	a	46.03		52.48		51.00		45.80		40.13		35.40		33.97		40.90
1997	32.63	a	32.18		35.07	b	37.00		45.35		46.67		50.27	a	51.39		48.70		40.29		37.69	a	31.29		40.71
1998	36.43	a	35.89	a	37.30	a	36.90		44.87		48.43		54.00		51.68		48.50		40.68		38.83	a	32.94		42.20
1999	36.27	a	35.37	a	35.10		37.20		41.16		47.17		49.71		53.35		45.72	a	39.94		40.60		34.55		41.34
2000	32.52		34.97		33.48		39.40		44.47	a	48.47		50.37	a	49.47	a	48.03		41.03		32.28	a	33.20	a	40.64
2001	32.45		31.61		36.57	a	36.77		42.90		46.07	a	49.26		50.23		46.27		40.39		40.43		35.35		40.69
2002	35.61		33.71		33.65		39.13		42.06		48.07		52.10		-----	z	47.97		39.77		36.63		36.39		40.46	a
2003	37.74		33.64		40.39		39.00		43.29		50.23		51.81		51.61		48.70		45.10		34.77		36.13		42.70
2004	33.97		35.55		38.45		39.67		45.71		49.93	b	53.00		53.68		48.77		44.29		35.90		36.48		42.95
2005	34.61		31.89		38.03		39.90		47.16		48.52	a	53.19		50.77		45.40		43.29		33.50		32.26		41.54
2006	37.06		30.79		34.84		38.37	c	43.84		51.70		52.77	a	49.97		46.53		39.23		37.50		32.48		41.26
2007	29.33	a	35.61		37.52		37.03		42.39		46.48	a	54.47	a	51.84		46.53		40.65		34.03		33.07	a	40.75
2008	29.06		31.71	a	32.13		34.10	a	43.90		44.17		49.16		49.68		43.20		36.48		35.67		25.94		37.93
2009	27.19		27.57		28.27	a	32.13		37.77		45.00		47.58		44.58		41.17		33.06		28.00	a	20.45		34.40
2010	29.94		28.43		35.06		37.60		42.26		47.79	b	49.94		49.26		48.67		42.42		36.53		35.68		40.30
2011	34.00		30.86		36.32		35.23		40.23		46.67		49.39		50.53	a	48.93		42.39		33.00		28.48		39.67
2012	30.97		31.79		31.97		38.28	e	40.35		44.08	f	48.94		48.94		44.83		40.35		37.17		32.65		38.75	a
2013	26.94		30.74	a	33.45		36.70		41.77		45.67		47.10		49.10		46.77		35.19		31.53		23.03		37.33
2014	27.87		28.68		32.94		34.83		41.19		43.60		48.71		49.48		45.17		41.58		31.17		31.87		38.09
2015	29.06		33.04		32.58		31.90		39.81		44.57		46.77		46.42		41.27		39.26		27.17		29.16		36.75
2016	28.58		30.28		31.16		34.03		38.55		41.23		43.90		43.52		38.43		36.48		32.93		21.23		35.03
2017	18.74		26.11		29.42		31.13		36.10		40.20		40.81		44.40	a	40.83		31.52		27.10		19.50	y	33.30	a
2018	37.14	j	32.00		32.29		37.77		42.74		43.30		46.32		45.26		38.96	g	35.97		28.92	q	31.35		38.56	c
2019	26.42		24.93		27.45		37.83		41.52		43.07		44.77		46.19		40.83		26.64	c	-----	z	-----	z	35.97	b
2020	-----	z	-----	z	-----	z	-----	z	36.00		39.30		54.18	t	53.00		52.23		42.74		36.03		34.84		42.02	e
2021	36.03		33.57		33.16		38.40		44.00		52.40	e	52.68		53.84		49.23		41.77		39.77		34.13		42.42
2022	32.45		31.29		37.35		35.80		41.97		48.62	i	52.87	a	53.94		50.57		44.52		30.90		32.06		40.34	a
2023	33.97		29.43		31.42		37.10		46.23		46.77		51.52		55.26		49.00		42.45		36.27		37.74		41.43
2024	33.19		35.66		34.87		37.15	q	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	34.57	i
Period of Record Statistics
MEAN	31.89		32.81		34.93		37.39		42.18		46.89		50.05		50.16		46.99		40.35		35.61		32.18		40.32
S.D.	3.69		2.98		2.70		2.34		2.31		2.54		2.51		2.60		2.87		3.24		3.45		3.90		1.72
SKEW	-0.85		-0.45		-0.29		-0.57		-0.13		-0.64		-1.00		-0.74		-0.67		-1.56		-0.68		-1.22		-1.48
MAX	37.74		38.50		40.84		41.97		47.61		52.40		54.47		55.26		52.23		46.07		42.30		37.74		43.07
MIN	18.74		24.93		27.45		31.13		36.00		39.30		40.81		43.52		38.43		26.64		27.10		20.45		34.40
YRS	59		60		60		59		60		59		60		60		60		61		59		59		53