N WILLAMETTE EXP STN, OR

Minimum of Minimum Temperature (Degrees Fahrenheit)

(356151)

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
1963	13.00	b	22.00		26.00		-----	z	33.00		40.00		44.00		45.00		44.00		30.00		25.00	a	23.00		-----	z
1964	29.00		24.00		28.00	a	26.00		29.00		40.00	a	42.00		43.00		39.00	b	31.00		23.00		8.00		8.00	d
1965	27.00		28.00	a	27.00		27.00		32.00		36.00		44.00		37.00		33.00		34.00		26.00		22.00	a	22.00	b
1966	24.00	a	24.00		28.00		33.00		33.00		34.00		44.00		44.00		43.00		28.00		29.00	a	30.00		24.00	b
1967	29.00		26.00		26.00		28.00		35.00		40.00		45.00		44.00		38.00	a	33.00		28.00		21.00		21.00	a
1968	21.00		23.00		26.00	a	26.00		37.00		39.00		43.00		45.00		42.00	a	32.00	a	24.00		23.00	e	21.00	h
1969	11.00		26.00	c	25.00		31.00		33.00	b	49.00	a	41.00	a	39.00	c	38.00	b	31.00	a	23.00	c	20.00	a	11.00	q
1970	25.00	b	29.00		28.00	a	29.00		35.00		42.00		41.00		41.00		32.00		28.00	a	22.00	a	24.00		22.00	e
1971	21.00	a	24.00		20.00	a	31.00		33.00		40.00		42.00		47.00	b	35.00	a	25.00		25.00		22.00		20.00	e
1972	16.00		20.00		26.00	a	29.00		34.00		40.00		44.00		47.00	b	30.00		30.00		27.00		5.00	a	5.00	d
1973	22.00		27.00		29.00	d	29.00		35.00		36.00		43.00		38.00		36.00		33.00	a	27.00		28.00		22.00	e
1974	8.00	d	26.00		23.00	a	36.00	b	34.00		42.00		46.00		45.00		38.00		30.00		29.00		28.00		8.00	g
1975	21.00		25.00	a	26.00	a	27.00		32.00		38.00		45.00	a	44.00		39.00		33.00		28.00		25.00		21.00	c
1976	25.00		24.00	a	25.00		31.00		34.00		35.00		44.00		46.00		44.00	a	30.00	c	21.00		22.00		21.00	e
1977	14.00		24.00	a	26.00		28.00		32.00		39.00		45.00		49.00		40.00		36.00		26.00	b	25.00		14.00	c
1978	26.00	a	28.00		29.00		29.00		31.00		45.00	b	46.00	a	47.00		39.00		29.00		19.00		13.00	c	13.00	g
1979	11.00		11.00		31.00		35.00		35.00		38.00	a	44.00		41.00		40.00		38.00		27.00	a	25.00		11.00	b
1980	11.00		26.00		29.00	a	29.00	a	35.00		41.00		48.00	b	43.00		41.00		32.00	a	26.00		22.00		11.00	e
1981	26.00	a	26.00		27.00	b	33.00	c	34.00		40.00		45.00	a	44.00	a	37.00		32.00		28.00	a	29.00		26.00	i
1982	14.00	a	17.00		29.00		30.00	b	34.00	b	43.00	a	43.00		44.00		38.00	a	31.00		25.00		22.00		14.00	g
1983	25.00		27.00		32.00		30.00		39.00		43.00		48.00		45.00		37.00		32.00		30.00		6.00		6.00
1984	20.00		28.00		30.00		29.00		35.00	a	40.00		44.00		44.00		37.00		33.00		29.00		15.00		15.00	a
1985	21.00		11.00		27.00		33.00		29.00		39.00		48.00		42.00		37.00		29.00		14.00	a	18.00		11.00	a
1986	29.00		25.00	a	32.00		29.00		33.00		44.00		42.00		45.00		37.00		34.00		30.00		25.00	a	25.00	b
1987	20.00		26.00		29.00		33.00		37.00	a	43.00		48.00		43.00	a	41.00		33.00		26.00		20.00		20.00	b
1988	22.00		20.00		27.00	a	29.00	b	35.00		39.00		42.00	b	44.00		36.00		33.00		32.00		20.00		20.00	e
1989	25.00		8.00		22.00		29.00		36.00	a	44.00		47.00		42.00		38.00		31.00		28.00		26.00		8.00	a
1990	25.00		20.00		27.00		32.00		33.00		46.00		48.00		45.00	a	47.00		31.00	a	30.00	a	-0.00	b	-0.00	e
1991	19.00		31.00		30.00		30.00		35.00	a	35.00		46.00		44.00		41.00		32.00		27.00	a	27.00	a	19.00	c
1992	25.00		28.00		31.00		32.00	b	35.00		45.00		51.00	a	46.00		39.00		32.00		26.00		20.00		20.00	c
1993	15.00	a	21.00	a	29.00		35.00		39.00		43.00	a	45.00		43.00	a	37.00		36.00		17.00		23.00		15.00	d
1994	26.00	a	21.00		30.00		34.00		38.00		42.00		46.00		48.00		42.00		31.00		25.00		25.00		21.00	a
1995	27.00	a	18.00	a	26.00		31.00	a	38.00		41.00	b	46.00	a	46.00		42.00		29.00		27.00		23.00	a	18.00	g
1996	18.00	a	16.00	a	26.00		34.00	a	31.00		41.00		44.00		47.00		40.00		33.00	a	27.00		25.00		16.00	d
1997	19.00		27.00	a	30.00		28.00		38.00		46.00		47.00		52.00		44.00	b	32.00	a	31.00		27.00	a	19.00	e
1998	23.00	a	29.00		27.00		32.00		43.00		47.00		53.00	a	48.00	a	44.00		34.00		35.00	a	-3.00	i	-3.00	m
1999	34.00	e	32.00		31.00		32.00		38.00		40.00		47.00		49.00		36.00		33.00		35.00		25.00		25.00	e
2000	28.00		30.00		30.00		32.00		37.00		44.00		47.00		44.00		-----	z	36.00		23.00		27.00		-----	z
2001	26.00		24.00		31.00		19.00		37.00		41.00		48.00		49.00		41.00		33.00		-----	z	-----	z	-----	z
2002	-----	z	-----	z	27.00		33.00		34.00		41.00		45.00		47.00		42.00		-----	z	22.00		27.00		-----	z
2003	27.00		27.00		30.00		34.00		34.00		45.00		46.00		47.00		43.00		33.00		24.00		25.00		24.00
2004	20.00		28.00		32.00		34.00		41.00		43.00		49.00		55.00		43.00		35.00		27.00		30.00		20.00
2005	22.00		27.00		30.00		34.00		41.00		44.00		49.00		47.00		36.00		38.00	a	28.00		20.00		20.00	a
2006	34.00		20.00		28.00		33.00		33.00		46.00		48.00		47.00		42.00		29.00		28.00		25.00		20.00
2007	21.00	a	25.00		30.00		30.00		36.00		43.00		50.00		47.00		-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	21.93		23.84		27.96		30.64		35.00		41.38		45.62		45.09		39.26		32.05		26.26		21.81		16.78
S.D.	6.05		5.24		2.63		3.12		2.97		3.35		2.67		3.29		3.52		2.63		4.07		6.71		6.03
SKEW	-0.36		-1.23		-0.72		-1.06		0.45		-0.14		0.42		0.16		-0.30		0.04		-0.56		-1.63		-0.60
MAX	34.00		32.00		32.00		36.00		43.00		49.00		53.00		55.00		47.00		38.00		35.00		30.00		25.00
MIN	8.00		8.00		20.00		19.00		29.00		34.00		41.00		37.00		30.00		25.00		14.00		-0.00		5.00
YRS	44		44		45		44		45		45		45		45		43		43		43		42		23