ICE HARBOR DAM, WA

Minimum of Minimum Temperature (Degrees Fahrenheit)

(453883)

File last updated on April 24, 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
1957	-----	z	-----	z	29.00	u	31.00	c	48.00		50.00		47.00		48.00		32.00		31.00	b	22.00		18.00		-----	z
1958	17.00		26.00		21.00		33.00		40.00		50.00		50.00		54.00		36.00		21.00		9.00		20.00		9.00
1959	3.00		19.00		25.00		26.00		34.00		43.00		46.00		48.00		37.00		30.00		6.00		16.00		3.00
1960	6.00		8.00		13.00		29.00		37.00		41.00		50.00		45.00		36.00		32.00		23.00		16.00		6.00
1961	17.00		34.00	b	26.00		28.00	a	40.00		46.00		48.00		52.00		36.00	a	25.00		12.00		6.00		6.00	d
1962	3.00	a	9.00		20.00	a	32.00	a	37.00		41.00		45.00		49.00		38.00		39.00	a	25.00	a	15.00		3.00	e
1963	1.00		11.00		25.00		31.00		40.00		38.00		50.00		53.00		43.00		31.00		21.00		14.00		1.00
1964	22.00		19.00	c	19.00		28.00		36.00		45.00		50.00		38.00		38.00		26.00		24.00		-5.00		-5.00	c
1965	14.00		25.00		18.00		34.00		34.00	a	45.00		53.00	a	45.00		33.00		35.00		30.00		13.00		13.00	b
1966	20.00		22.00		19.00		24.00		36.00		42.00		53.00		50.00		43.00		36.00		25.00	a	25.00		19.00	a
1967	27.00		25.00		22.00		33.00		39.00		47.00		53.00		51.00		46.00		32.00		19.00		8.00	a	8.00	a
1968	15.00	a	17.00		27.00		30.00	a	39.00		44.00		51.00		52.00		41.00		33.00		27.00		-14.00		-14.00	b
1969	-7.00		-4.00		22.00		33.00		38.00		50.00		51.00		48.00		43.00		24.00		25.00		25.00		-7.00
1970	17.00		26.00		25.00		30.00		39.00		45.00		51.00		51.00		37.00		26.00		13.00		15.00		13.00
1971	11.00		18.00		21.00		32.00		36.00		46.00		46.00		49.00		36.00		20.00		18.00		10.00	b	10.00	b
1972	-4.00	a	-0.00	a	27.00		25.00		36.00		46.00		51.00		-----	z	33.00		26.00		27.00		-5.00		-----	z
1973	-1.00		19.00		31.00		26.00		35.00		45.00		49.00		49.00		40.00		36.00		26.00		19.00		-1.00
1974	-5.00		27.00		25.00	b	31.00		37.00		45.00		50.00		54.00		40.00		31.00	a	33.00		25.00		-5.00	c
1975	18.00		17.00		21.00		29.00		37.00		44.00		56.00	b	49.00	a	38.00	b	35.00		20.00		20.00		17.00	e
1976	19.00	a	13.00	a	14.00		29.00	a	39.00		41.00		47.00		47.00	b	39.00		25.00		13.00		15.00		13.00	e
1977	8.00		25.00		30.00		33.00		37.00		42.00	a	48.00		51.00		42.00		29.00		10.00		14.00		8.00	a
1978	-7.00		20.00	b	20.00	b	33.00	b	37.00		46.00		51.00		50.00	b	36.00	a	25.00		10.00		-2.00		-7.00	i
1979	1.00	d	-7.00		24.00		28.00	a	-----	z	44.00		-----	z	55.00		44.00		38.00		23.00	b	23.00	a	-----	z
1980	-----	z	-----	z	25.00		29.00		40.00		45.00	a	52.00	a	48.00		40.00	a	27.00	a	31.00		11.00		-----	z
1981	24.00		14.00	a	24.00		32.00		35.00	a	45.00	a	47.00		50.00		42.00	b	26.00	b	22.00		17.00		14.00	g
1982	1.00	e	13.00	b	25.00	c	30.00	a	35.00	b	46.00		49.00		55.00	a	40.00		26.00		21.00	b	17.00	a	1.00	q
1983	23.00	a	25.00		31.00	b	30.00		40.00	c	48.00	a	47.00	a	56.00		29.00	b	31.00		21.00		-10.00	b	-10.00	l
1984	8.00		25.00		22.00	b	33.00		-----	z	40.00	a	49.00		48.00		32.00	a	25.00	a	24.00		-2.00		-----	z
1985	10.00		-3.00	b	24.00	a	31.00	a	36.00	a	45.00	a	52.00		-----	z	27.00		24.00		-----	z	-5.00	a	-----	z
1986	18.00	a	19.00		30.00		22.00	a	37.00		49.00		44.00		48.00	b	40.00	a	25.00		18.00	a	20.00		18.00	f
1987	9.00	a	19.00	a	21.00	a	36.00		41.00		44.00		53.00	a	51.00		39.00		30.00		22.00		11.00		9.00	d
1988	14.00		11.00		24.00		31.00		38.00	a	47.00		48.00		50.00		37.00	b	26.00		26.00		12.00		11.00	c
1989	16.00	a	-7.00		15.00	b	31.00	b	39.00	a	49.00	a	52.00	a	53.00	a	43.00	f	29.00		25.00		21.00		-7.00	o
1990	25.00	b	5.00	b	23.00	l	36.00	c	39.00		45.00	b	49.00		53.00		47.00		34.00		27.00	a	-10.00		-10.00	v
1991	11.00	b	26.00		26.00		32.00		39.00		40.00		50.00		53.00		-----	z	22.00	a	25.00	a	22.00		-----	z
1992	24.00		25.00		-----	z	34.00	a	34.00	b	48.00		55.00	a	46.00	a	38.00		29.00		23.00	a	17.00	a	-----	z
1993	-1.00	c	7.00	a	10.00	n	33.00		42.00		-----	z	52.00	a	46.00		38.00		32.00	a	8.00		23.00		-----	z
1994	24.00		4.00		21.00	a	36.00	a	-----	z	46.00		53.00		56.00	b	45.00	a	33.00		21.00		14.00		-----	z
1995	12.00	d	11.00	a	17.00	a	31.00		39.00	a	46.00		54.00		50.00		39.00		29.00	b	19.00		18.00		11.00	i
1996	-8.00	a	-11.00	c	19.00		34.00		33.00		43.00		50.00		49.00	a	31.00		28.00		24.00	a	-1.00		-11.00	f
1997	9.00		21.00		29.00		25.00		35.00		48.00	a	52.00	a	52.00		42.00	a	30.00		29.00		22.00		9.00	c
1998	9.00		29.00	a	28.00	a	33.00		42.00		49.00		56.00		50.00		46.00		28.00	a	33.00	a	1.00		1.00	d
1999	22.00		27.00		25.00		26.00		35.00	a	45.00		49.00	a	42.00		36.00		26.00	a	28.00	a	25.00	a	22.00	e
2000	22.00		21.00	a	30.00	a	29.00	a	35.00		43.00	b	45.00	a	46.00	b	31.00	a	29.00		18.00		15.00		15.00	i
2001	24.00	a	19.00		23.00		30.00		37.00	a	44.00		53.00	b	52.00	a	39.00	a	33.00	b	26.00	b	21.00	d	19.00	n
2002	20.00	d	18.00	a	22.00	a	31.00	b	28.00	c	41.00	a	48.00		47.00		40.00		19.00		14.00		26.00		14.00	l
2003	29.00	b	16.00	a	31.00	a	34.00		36.00		48.00		52.00	a	51.00		44.00		26.00	a	13.00		14.00		13.00	f
2004	-6.00	a	28.00	b	28.00	d	30.00		44.00		47.00		51.00		54.00	a	44.00	a	36.00	b	24.00	a	22.00		-6.00	l
2005	9.00		16.00	d	28.00		-----	z	38.00	b	48.00		53.00		51.00	b	39.00		36.00	d	26.00		10.00	d	-----	z
2006	28.00	j	6.00		23.00	a	33.00		34.00		50.00		51.00	a	53.00		42.00		17.00		15.00	a	15.00	a	6.00	n
2007	8.00		18.00		29.00		30.00		40.00		46.00	a	53.00	a	51.00		42.00		25.00		23.00		23.00	a	8.00	c
2008	5.00		25.00		29.00		26.00		34.00	c	45.00	a	47.00	a	47.00	a	39.00		28.00		24.00		-1.00		-1.00	f
2009	10.00		21.00	a	17.00		29.00	b	35.00		49.00	b	50.00	c	50.00		40.00		22.00		28.00		-1.00		-1.00	h
2010	21.00	b	19.00		24.00		25.00		36.00		48.00	a	51.00	c	46.00	a	44.00		34.00	a	6.00		13.00	a	6.00	i
2011	10.00		7.00	b	28.00		29.00	b	37.00	c	45.00	a	49.00		52.00		38.00	b	30.00	b	24.00		15.00		7.00	l
2012	11.00		24.00	b	25.00		30.00		34.00	a	46.00	a	49.00		44.00		-----	z	30.00		-----	z	21.00	m	-----	z
2013	16.00		-----	z	23.00		-----	z	-----	z	-----	z	-----	z	52.00		43.00		-----	z	11.00		5.00		-----	z
2014	17.00		-----	z	24.00		-----	z	37.00	b	48.00		54.00		52.00		35.00	a	39.00	a	9.00		8.00		-----	z
2015	14.00		20.00		23.00		-----	z	-----	z	47.00	a	54.00		53.00		36.00		37.00		16.00		19.00		-----	z
2016	8.00		22.00		27.00		38.00		41.00	a	44.00	a	54.00		51.00	b	40.00		30.00		27.00		1.00		1.00	d
2017	-5.00		15.00		30.00	c	33.00		38.00		49.00	a	53.00		52.00		38.00		33.00		22.00		11.00		-5.00	d
2018	25.00		17.00		22.00		33.00		47.00	a	45.00	b	53.00		53.00	a	42.00	a	31.00		24.00	e	23.00		17.00	j
2019	21.00		3.00	a	4.00		33.00		32.00		46.00		48.00	a	49.00		46.00	a	16.00	a	14.00		23.00		3.00	d
2020	8.00		19.00		24.00		26.00		38.00		49.00		53.00		53.00		41.00		25.00		24.00		17.00	a	8.00	a
2021	21.00		11.00		25.00		29.00		40.00		46.00		55.00		47.00		42.00		29.00		28.00		13.00		11.00
2022	6.00		8.00		23.00		31.00		38.00		48.00		53.00		54.00	b	47.00		41.00		22.00		-----	z	-----	z
2023	-----	z	-----	z	-----	z	34.00		44.00	a	46.00		-----	z	50.00		-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	11.73		15.84		23.60		30.57		37.63		45.57		50.59		50.06		39.16		29.11		21.03		12.59		4.62
S.D.	9.74		9.81		4.92		3.21		3.36		2.72		2.80		3.36		4.39		5.33		6.68		9.97		7.48
SKEW	-0.34		-0.83		-1.14		-0.35		0.52		-0.48		-0.26		-0.84		-0.48		-0.10		-0.59		-0.87		-0.56
MAX	29.00		34.00		31.00		38.00		48.00		50.00		56.00		56.00		47.00		41.00		33.00		26.00		19.00
MIN	-8.00		-11.00		4.00		22.00		28.00		38.00		44.00		38.00		27.00		16.00		6.00		-14.00		-14.00
YRS	63		62		62		63		62		65		64		65		63		65		64		64		26