SILVERTON, OR

Minimum of Minimum Temperature (Degrees Fahrenheit)

(357823)

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
1962	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	44.00		36.00		27.00		23.00		-----	z
1963	7.00		28.00		27.00		31.00		38.00		44.00		46.00		47.00		45.00		33.00		28.00		22.00		7.00
1964	31.00		26.00		29.00		30.00		33.00		42.00	a	46.00		46.00		41.00		32.00		24.00		5.00		5.00	a
1965	29.00		28.00		26.00		33.00		34.00		40.00		45.00		45.00		34.00		37.00		28.00		14.00		14.00
1966	23.00		27.00		26.00		34.00		37.00		37.00		47.00		46.00		45.00		32.00		30.00		29.00		23.00
1967	32.00		29.00		26.00		29.00		37.00		45.00		47.00		51.00		41.00		35.00		28.00		20.00		20.00
1968	22.00		28.00		28.00		29.00		36.00		43.00		48.00		45.00		42.00		32.00		30.00		7.00		7.00
1969	10.00		27.00		26.00		31.00		36.00		47.00		45.00		46.00		42.00		32.00		25.00		22.00		10.00
1970	20.00		31.00		31.00		31.00		35.00		43.00		44.00		45.00		36.00		30.00		27.00		22.00		20.00
1971	19.00		24.00		19.00		30.00		38.00		43.00		43.00		45.00		40.00		23.00		25.00		23.00		19.00
1972	15.00		17.00		28.00		29.00		34.00	a	41.00		45.00		46.00		35.00		28.00		30.00		-0.00		-0.00	a
1973	14.00		29.00		32.00		33.00		37.00		39.00		44.00		43.00		40.00		36.00		27.00		29.00		14.00
1974	9.00		29.00		25.00		32.00		36.00		43.00		45.00		45.00		40.00		33.00		30.00		22.00		9.00
1975	19.00		24.00	a	28.00		29.00		37.00		42.00		46.00		46.00		45.00		36.00		27.00		27.00		19.00	a
1976	24.00		21.00		24.00		29.00		39.00		38.00		45.00		45.00		42.00		33.00		25.00		27.00		21.00
1977	17.00		23.00		29.00		31.00		35.00		43.00		47.00		47.00		39.00		38.00		16.00		26.00	a	16.00	a
1978	27.00		27.00		30.00		31.00		38.00		46.00		47.00		47.00		42.00	a	30.00		19.00		11.00		11.00	a
1979	4.00		13.00		32.00		37.00		37.00		40.00		46.00		48.00		42.00		37.00		25.00		27.00		4.00
1980	8.00		24.00		32.00		31.00		38.00		43.00		48.00		40.00		41.00	a	33.00		28.00		22.00		8.00	a
1981	28.00		25.00		28.00		29.00		37.00		42.00		42.00		44.00		40.00		34.00		26.00		27.00		25.00
1982	16.00	a	18.00		29.00		28.00		36.00		42.00	a	45.00		40.00		37.00	a	32.00	b	25.00	a	22.00	b	16.00	h
1983	24.00	d	28.00	a	34.00		32.00		39.00		44.00		46.00		46.00		36.00		35.00	a	29.00		6.00	a	6.00	g
1984	20.00		30.00	a	32.00		34.00		37.00	a	39.00		46.00		48.00	a	37.00		35.00		31.00		15.00		15.00	c
1985	23.00		-----	z	27.00		34.00		32.00		42.00		50.00		42.00		38.00		28.00	b	13.00	b	20.00	a	-----	z
1986	29.00	b	27.00	a	31.00	a	31.00		35.00	b	45.00		45.00	a	49.00		40.00	a	36.00	b	28.00	b	26.00	a	26.00	m
1987	21.00		-----	z	32.00		34.00		40.00		44.00		49.00		45.00	a	43.00	b	37.00		26.00		24.00	a	-----	z
1988	22.00	c	21.00	a	27.00	a	31.00	a	38.00		43.00	a	43.00		47.00		39.00		32.00		31.00		26.00	a	21.00	h
1989	24.00	b	6.00		28.00		36.00	a	39.00	a	45.00		47.00	a	48.00	a	41.00		29.00		21.00	c	25.00	a	6.00	j
1990	25.00		19.00	b	-----	z	35.00		35.00		46.00		46.00	a	47.00	c	49.00		33.00	b	31.00	c	3.00		-----	z
1991	21.00		33.00	a	29.00	a	34.00	a	39.00		38.00	a	47.00	b	46.00	b	40.00	a	26.00	b	28.00	e	27.00	f	21.00	v
1992	28.00	g	32.00	d	34.00	a	32.00	e	35.00	d	46.00	c	51.00	a	47.00	a	40.00	a	33.00		28.00	b	23.00		-----	z
1993	17.00		20.00		34.00		34.00	a	40.00		45.00		46.00		44.00	c	38.00	b	37.00		15.00		22.00	a	15.00	g
1994	26.00	a	18.00	b	31.00		33.00	a	37.00	a	42.00		48.00	c	50.00	a	45.00		33.00		25.00		23.00	a	18.00	j
1995	25.00	b	19.00	b	27.00	a	32.00		40.00		44.00		48.00		46.00	a	47.00		27.00		26.00		25.00		19.00	f
1996	16.00		12.00	a	27.00		34.00		33.00		41.00		45.00		48.00		41.00		33.00		28.00		26.00		12.00	a
1997	21.00		27.00	a	32.00		29.00		36.00		44.00		48.00		51.00		44.00	a	34.00		34.00		28.00		21.00	b
1998	25.00	a	29.00	a	28.00		34.00		40.00	a	45.00		53.00		48.00		41.00		34.00		32.00	a	10.00		10.00	d
1999	27.00		28.00		27.00		31.00		36.00		41.00		46.00		50.00		36.00		33.00	a	32.00		24.00	a	24.00	b
2000	26.00		30.00		28.00	a	30.00	a	35.00		46.00	a	47.00		45.00		35.00		34.00		20.00		26.00	a	20.00	d
2001	25.00	b	27.00		30.00		29.00		36.00		39.00	a	48.00		49.00	a	43.00		31.00	a	31.00		29.00		25.00	e
2002	29.00		28.00		28.00		35.00		34.00	a	43.00		46.00	a	49.00	a	45.00	b	25.00		28.00		28.00		25.00	e
2003	29.00	a	25.00		30.00		32.00		37.00		47.00	a	47.00	b	49.00		45.00	a	31.00		25.00	a	23.00	a	23.00	g
2004	19.00	a	30.00		33.00		33.00	a	41.00		44.00		49.00		52.00		44.00	b	37.00	a	29.00		27.00	a	19.00	f
2005	24.00	b	25.00	a	33.00	b	37.00		41.00	a	45.00		49.00	a	50.00		41.00		35.00		25.00	a	19.00		19.00	h
2006	31.00		20.00		28.00		34.00	a	-----	z	47.00		48.00	a	46.00	a	43.00		26.00		28.00		22.00	a	-----	z
2007	18.00	a	24.00		30.00		31.00		37.00		42.00		51.00		49.00		41.00	a	34.00	a	27.00	a	27.00		18.00	d
2008	20.00	a	30.00	a	29.00		30.00		37.00		41.00		49.00	a	49.00	a	40.00		34.00		29.00		17.00	a	17.00	e
2009	24.00		27.00		26.00		29.00		36.00		46.00		48.00		47.00		45.00		35.00		34.00		10.00		10.00
2010	33.00		30.00		30.00		33.00		37.00		45.00		48.00		47.00		45.00		36.00		17.00		27.00		17.00
2011	21.00		15.00		31.00		31.00		36.00		42.00		46.00		51.00		43.00		34.00		30.00		25.00		15.00
2012	26.00		31.00		27.00		30.00		35.00		41.00		45.00		46.00		43.00		39.00		31.00		29.00		26.00
2013	22.00		30.00		28.00		35.00		34.00		44.00		48.00		52.00		46.00		32.00		24.00		10.00		10.00
2014	27.00		18.00		31.00		34.00		38.00		45.00		50.00		50.00		48.00		44.00		23.00		20.00		18.00
2015	21.00		29.00		29.00		33.00		42.00		46.00		52.00		50.00		43.00		39.00		23.00		23.00		21.00
2016	20.00		31.00		34.00		37.00		42.00		42.00		51.00		49.00		43.00		38.00		35.00		20.00		20.00
2017	15.00		29.00		32.00		33.00		38.00		41.00		49.00		49.00		46.00		34.00		31.00		25.00		15.00
2018	29.00		23.00		29.00		30.00		41.00		42.00		49.00		48.00		43.00		40.00		30.00		22.00		22.00
2019	27.00		23.00		21.00		34.00		39.00		45.00		52.00		52.00		36.00		26.00		23.00		23.00		21.00
2020	28.00		28.00		29.00		33.00		37.00		45.00		49.00		47.00		49.00	s	27.00		29.00	i	26.00	g	-----	z
2021	22.00	f	24.00	r	30.00		33.00		38.00		43.00		51.00		45.00		42.00		47.00		30.00	i	18.00		-----	z
2022	20.00		20.00	o	-----	z	31.00	l	36.00		44.00		50.00		52.00		46.00		39.00		24.00		21.00		-----	z
2023	19.00		18.00		28.00		33.00		44.00		43.00		51.00		50.00		44.00		29.00		26.00		29.00		18.00
2024	14.00		30.00		28.00		37.00	t	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	21.78		24.97		28.95		32.10		37.17		43.03		47.34		47.25		41.61		33.44		26.68		21.22		15.39
S.D.	6.36		5.60		2.94		2.27		2.40		2.37		2.40		2.71		3.39		4.37		4.51		7.05		6.37
SKEW	-0.67		-1.14		-0.65		0.24		0.42		-0.46		0.22		-0.35		-0.26		0.17		-0.94		-1.32		-0.44
MAX	33.00		33.00		34.00		37.00		44.00		47.00		53.00		52.00		49.00		47.00		35.00		29.00		26.00
MIN	4.00		6.00		19.00		28.00		32.00		37.00		42.00		40.00		34.00		23.00		13.00		-0.00		-0.00
YRS	60		58		60		60		60		61		61		61		61		62		60		60		38