SILVERTON, OR

Average of Average Temperature (Degrees Fahrenheit)

(357823)

File last updated on April 22, 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
1962	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	63.05		52.87		47.30		41.35	k	54.41	i
1963	34.27		48.62		45.19		47.37		55.92		59.77		61.82		65.58		64.87		54.87		46.65		40.03		52.08
1964	42.06		40.93		43.60		47.32		52.16		58.17	a	64.58		63.68		58.93		54.10		42.22		38.76		50.54
1965	39.74		42.64		46.98		51.12		52.48		58.73		66.97		66.39		59.50		55.35		47.23		37.39		52.04
1966	39.15		41.27		44.24		51.37		55.53		60.70		64.32		66.29		62.20		52.48		46.98		44.74		52.44
1967	43.98		43.29		43.79		45.77		55.21		63.77		67.85		72.00		65.87		53.65		46.05		40.97		53.52
1968	39.85		47.93		47.71		47.40		54.32		60.40		66.40		64.53		60.27		51.35		46.13		37.65		52.00
1969	33.69		40.38		46.23		48.95		57.79		64.05		64.42		63.92		61.83		50.55		45.48		42.13		51.62
1970	40.19		45.86		46.27		46.62		54.44		63.87		66.35		65.50		58.07		51.56		45.78		39.61		52.01
1971	38.92		40.86		42.40		47.80		55.00		56.97		65.79		68.18		58.55		49.89		43.65		38.63		50.55
1972	37.82		42.59		47.66		46.12		56.90	a	60.63		68.68		68.77		59.45		51.69		46.18		35.89		51.87
1973	38.00		44.07		46.23		50.35		57.28	a	61.12		67.42		63.18		62.17		51.85		43.37		43.47		52.37
1974	36.26		40.96		45.89		49.03		53.05		61.80		65.16		67.37		67.13		54.45		46.30		42.53		52.50
1975	41.66		40.83	a	43.66		45.87		55.77		60.08		66.85		62.95		64.63		52.97		44.43		42.35		51.84
1976	41.15		41.10		42.79		47.72		54.95		58.23		64.95		63.82		62.75		53.52		46.87		38.00		51.32
1977	37.05		44.11		43.48		51.40		51.81		61.57		64.63		70.90		60.02		53.60		44.38		42.87	a	52.15
1978	41.61		45.38		49.68		49.63		53.97		63.80		67.02		66.19		60.09	a	55.15		40.00		35.35		52.32
1979	30.42		41.82		48.90		50.43		56.81		62.58		67.66		65.45		64.45		56.66		42.60		44.02		52.65
1980	36.02		43.67		45.19		51.85		55.18		58.02		66.29		63.55		62.24	a	54.44		47.02		42.90	a	52.20
1981	41.19		42.82		48.13		51.03		55.50		59.05		65.60		69.87		63.05		52.27		47.12		42.45		53.17
1982	38.15	a	41.66		45.34		46.27		55.15		63.21	a	65.18		66.33	a	61.39	b	54.55	b	43.48	a	41.03	b	51.81
1983	41.73	e	46.38	b	49.00		50.17		58.02		59.63		63.16		66.97		59.62		52.47	a	47.66	b	36.26	b	52.59
1984	42.48		45.23	a	48.76		47.80		53.38	a	58.23		65.73		66.33	a	61.07		50.66		44.95		36.69		51.78
1985	34.03		-----	z	44.32		52.00	a	55.92		61.57		70.37		65.40		59.08		52.98	c	37.69	c	33.30	a	51.52	a
1986	43.98	c	44.29	b	51.30	a	49.42		56.60	b	65.47		63.53	a	70.52		58.78	a	54.88	b	46.78	c	39.33	a	53.74
1987	39.66		-----	z	48.05		54.00		58.87		64.02		65.15		67.83	a	64.21	b	57.92		47.98		39.00	d	55.15	a
1988	37.88	e	43.50	a	46.95	b	51.28	a	54.92		60.26	a	67.40		66.55		62.97		57.55		47.48		39.86	b	53.05
1989	41.43	b	35.95		45.94		54.79	a	56.10	a	63.43		64.32	a	64.74	b	64.20		53.13		46.85	d	37.71	b	52.38
1990	42.68		40.67	e	-----	z	53.58		55.53		61.80		69.22	a	68.65	d	65.70		52.21	b	47.74	c	34.10		53.81	a
1991	40.02	b	48.48	a	45.14	b	49.88	a	53.37		57.91	a	68.20	c	68.12	b	65.19	a	54.74	b	46.95	k	40.00	j	55.10	b
1992	44.78	h	47.14	d	51.12	a	53.57	g	61.48	e	66.33	c	68.67	a	68.48	a	61.69	a	55.92		45.48	b	39.28	a	56.56	b
1993	35.00	b	39.30		48.72	a	51.10	a	59.35		60.53		62.44		66.80	c	63.79	b	56.48		39.08		38.48	a	51.76
1994	42.42	a	41.13	b	49.29		52.09	a	57.58	a	60.15		68.54	c	66.47	a	65.45		52.05		40.53		41.87	a	53.13
1995	43.52	b	47.60	c	47.25	a	49.37		58.13		61.55		67.79		64.40	a	64.70		52.95		50.75	b	41.48		54.12
1996	41.63		41.20	a	47.35		52.36	a	53.23		60.40		69.48		67.92		59.68		52.66		45.52		41.72	b	52.76
1997	40.66		42.59	a	46.50	a	49.37		60.94		60.97		65.69		68.68		62.93	a	51.58		48.60		39.29		53.15
1998	43.71	b	45.69	b	47.63		50.65		54.47	a	60.80		67.94		67.50		64.40		52.68		47.00	c	38.43	d	53.41
1999	41.71	c	42.96		44.40		49.02		53.00		58.98		64.76		67.06		62.78		53.98	a	48.93	a	41.90	b	52.46
2000	39.62	f	43.34	a	44.30	a	51.98	a	55.39		62.91	a	65.02		65.18		61.80		53.28	a	40.68		40.14	b	53.09	a
2001	40.19	b	41.74	a	46.90		48.47		57.10		59.19	a	65.18		66.88	a	62.73		52.73	a	48.26	a	40.75	a	52.51
2002	40.81		43.41		43.34		50.52		53.48	a	62.67		68.03	a	67.10	a	63.52	b	52.87		47.15		43.16		53.00
2003	45.03	a	43.71		48.56		48.83		55.42		63.93	a	68.91	b	68.03	a	64.55	a	57.37		42.34	a	41.43	b	54.01
2004	38.68	a	44.24		49.40		53.26	a	57.50		62.95		69.45		69.13		60.46	b	54.67	a	43.72		42.15	a	53.80
2005	41.34	b	41.46	a	49.28	b	51.05		58.50	a	59.23		67.98	a	69.06		60.77		54.42		42.74	a	38.43	a	52.86
2006	44.11		41.20		44.44		51.17	a	-----	z	63.68		68.60	a	66.52	a	63.32		52.13		46.17		38.72	a	52.73	a
2007	37.30	a	43.62		48.66		49.58		55.90		60.70		68.56		66.52		61.09	a	51.15	a	42.72	a	39.84		52.14
2008	36.15	a	42.57	a	43.18		46.30		56.11		58.73		67.42	a	66.90	a	62.33		52.11		47.42		37.25	a	51.37
2009	38.69		40.88		43.40		49.27		56.56		62.72		70.19		67.45		63.97		52.26		46.68		35.74		52.32
2010	45.39		45.73		46.85		48.87		52.94		58.72		65.74		66.08		62.35		54.10		44.78		43.15		52.89
2011	40.61		39.79		45.27		46.12		51.74		59.18		63.68		67.05		65.25		53.35		43.28		37.02		51.03
2012	40.37		42.52		42.82		51.47		54.87		58.88		65.15		68.23		63.50		54.45		47.18		41.47		52.58
2013	35.26		42.93		46.85		51.52		57.34		62.57		67.97		68.66		62.78		50.23		44.18		33.89		52.01
2014	39.39		39.89		48.00		51.33		59.37		61.13		70.10		70.45		65.23		58.63		45.62		43.63		54.40
2015	41.98		47.68		50.37		50.35		58.00		67.35		71.23		69.84		61.45		57.56		44.02		42.02		55.15
2016	42.16		47.36		47.73		55.35		58.60		63.42		66.34		69.35		61.27		54.23		50.42		36.15		54.36
2017	34.47		41.64		46.98		49.27		57.79		62.90		67.77		71.44		65.35		52.98		46.87		39.06		53.04
2018	44.42		41.45		44.56		50.95		59.40		62.35		70.81		69.02		61.67		55.06		46.23		41.97		53.99
2019	41.29		36.71		44.06		51.68		58.37		63.23		67.34		69.03		62.20		49.24		44.32		41.08		52.38
2020	44.65		42.21		44.05		51.83		57.81		61.63		67.71		68.45		67.64	s	54.16		44.36	i	41.77	g	54.72	c
2021	41.56	f	39.35	r	44.37		52.90		57.60		68.33		70.16		69.34		66.82		69.00		48.60	i	37.89		59.60	c
2022	38.79		36.73	o	-----	z	46.81	l	53.37		61.40		70.10		70.53		65.68		58.18		40.07		39.11		55.25	c
2023	41.11		39.04		41.74		49.15		60.97		63.22		70.13		71.76		62.57		54.77		45.05		44.03		53.63
2024	40.98		44.22		46.89		49.70	t	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	44.03	i
Period of Record Statistics
MEAN	39.95		42.94		46.29		50.03		56.07		61.47		66.95		67.36		62.58		53.90		45.29		39.79		52.60
S.D.	3.19		2.72		2.33		2.27		2.33		2.39		2.21		2.19		2.21		2.84		2.69		2.76		0.97
SKEW	-0.66		0.12		0.12		-0.02		0.18		0.50		-0.12		0.01		-0.09		2.50		-0.69		-0.35		0.29
MAX	45.39		48.62		51.30		55.35		61.48		68.33		71.23		72.00		67.13		69.00		50.75		44.74		55.15
MIN	30.42		35.95		41.74		45.77		51.74		56.97		61.82		62.95		58.07		49.24		37.69		33.30		50.54
YRS	59		58		60		59		60		61		61		61		61		62		59		59		51