ICE HARBOR DAM, WA

Average of Maximum Temperature (Degrees Fahrenheit)

(453883)

File last updated on April 23, 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	59.30	u	69.04	c	77.32		85.13		89.32		86.68		84.13		61.62	b	52.17		49.52		72.77	c
1958	44.71		54.64		55.65		63.17		81.87		87.97		96.00		96.19		79.77		69.81		51.80		42.60	a	68.68
1959	42.77		45.89		59.29		67.00		70.90		83.23		94.10		87.00		75.80		66.16		48.57		40.39		65.09
1960	31.00		48.62		56.68		66.30		71.84		85.80		99.00		86.58		82.70		67.74		53.17		35.77		65.43
1961	41.94		53.92	b	57.03		64.90	a	72.71		90.70		95.06		96.55		77.47		64.90		46.13		42.71		67.00
1962	40.29		47.18		52.93	a	69.86	a	67.81		82.17		90.71		86.77		81.87		64.32		53.97		44.87		65.23
1963	36.87		46.04		58.65		61.50		73.77		82.53		86.16		90.48		86.10		70.87		54.33		37.84		65.43
1964	47.45		52.55		55.58		63.83		72.16		80.57		90.97		85.48		78.37		67.26		47.10		38.32		64.97
1965	41.16		51.89		54.74		68.47		73.16		80.10		89.55		87.55		76.47		71.81		53.57		42.87		65.94
1966	44.23		50.00		59.00		67.53		77.45		79.43		86.84		89.52		82.50		67.45		54.77		47.97		67.22
1967	51.26		55.46		57.42		60.73		73.39		84.20		92.81		96.32		87.13		69.10		52.27		43.90		68.67
1968	45.71		52.76		61.58		63.67		74.19		82.23		93.32		84.61		79.73		64.42		51.10	a	41.42		66.23
1969	29.26		41.29		57.29		63.90		76.68		85.50		88.74		87.16		79.80		63.16		53.47		41.23		63.96
1970	39.48		49.18		56.58		60.63		73.87		85.83		91.42		90.74		74.93		65.19		51.33		44.19		65.28
1971	47.94		51.79		53.26		63.83		74.94		74.97		90.52		94.65		74.90		65.32		52.50		44.52		65.76
1972	43.19		45.59		59.35		62.77		75.39		81.23		88.10		-----	z	76.48	a	66.39		50.03		37.48		62.36	a
1973	39.55		47.32		59.19		66.63		76.48		81.50		90.71		88.35		78.27		65.32		48.27		46.39		65.67
1974	36.45		52.89		56.97		63.17		69.94		84.17		86.55		87.77		83.03		67.90		52.27		48.13		65.77
1975	42.55		44.25		53.87		59.60		72.19		78.37		91.58		84.26		82.47		64.97		51.90	a	44.71		64.23
1976	44.97		49.07		55.42		63.40		75.10		78.20		87.52		83.19		83.00		67.77		51.83		41.68		65.10
1977	31.26		50.68		55.03		72.00		68.94		85.53		86.90		91.65		73.87		65.90		50.70		44.00		64.70
1978	38.87		47.39		59.67	a	62.97		70.90		82.53		88.19		85.23	a	75.20		68.03		43.93		40.58		63.63
1979	25.37	d	45.21		59.26		64.53		-----	z	82.90		-----	z	87.77		82.87		69.65		45.34	a	45.57	a	60.85	b
1980	-----	z	-----	z	55.52		68.67		71.71		75.17		87.58		84.00		79.27		64.68		50.93		45.19		68.27	b
1981	43.10		47.93		60.32		64.97		71.77		75.20		86.35		92.19		80.48	a	65.17	a	54.17		43.55		65.43
1982	40.26		49.11		57.10		61.93		72.35		82.33		87.00		87.45		77.50		63.97		47.38	a	42.30	a	64.06
1983	47.45		51.07		59.90		65.30		76.39	c	78.38	a	84.00		87.74		76.28	a	66.26		54.90		31.84		64.96
1984	41.68		49.07		58.90	a	63.00		-----	z	77.28	a	89.26		88.87		76.00		64.16		49.33		36.87		63.13	a
1985	31.68		42.57		57.19		68.63		75.84		83.03	a	94.65		-----	z	72.67		64.87		-----	z	27.03	a	61.82	b
1986	41.19		47.96		60.32		64.50		73.10		86.07		83.58		94.31	o	68.38	q	68.87		51.97		38.45		61.60	b
1987	38.74		49.79		58.97		70.63		77.87		84.10		86.29		88.26		84.53		70.10		54.60		40.97		67.07
1988	40.13		52.34		58.26		67.17		73.19		78.77		88.52		88.23		79.33		72.87		55.70		40.39		66.24
1989	45.97		34.89		54.42		67.40		71.77		82.70		87.23		84.32		80.68	e	66.26		54.73		39.94		64.19
1990	47.50	a	47.68		57.81	j	68.89	c	70.77		79.37		90.97		87.84		85.87		63.94		56.27		35.48		66.78	a
1991	37.48		55.11		54.97		65.27		69.29		75.23		88.52		90.35		-----	z	68.48		49.23		44.35		63.48	a
1992	45.90		50.48		-----	z	68.30		79.32		86.50		85.84		89.10		76.73		68.65		48.93		41.33	a	67.37	a
1993	30.10		38.00	a	51.05	k	64.00		77.23		-----	z	80.13		84.90		80.83		68.39		46.63		42.45		61.27	b
1994	46.81		44.29		61.52		67.83		-----	z	80.27		92.23		90.10		83.27		65.39		49.73		44.35		65.98	a
1995	39.86	c	52.82		57.39		63.77		73.35		76.73		86.52		83.84		81.63		62.94		55.17		41.43	a	64.62
1996	41.13		42.10		55.23		65.37		68.87		79.73		90.35		88.13		76.73		66.10	a	49.50		39.55		63.57
1997	41.90		48.32		57.74		63.07		74.94		77.69	a	86.84		89.35		79.47		65.23		51.57		43.87		65.00
1998	45.00		51.64		58.61		64.47		71.16		80.47		92.77		89.94		83.90		65.74		54.52	a	44.77		66.92
1999	48.52		52.04		57.65		64.43		69.97		78.70		85.26		88.23		80.43		66.48		56.10		47.26		66.25
2000	44.13		47.69		56.39		67.93		72.81		79.69	a	87.58		88.77		76.10		63.68		45.07		37.42		63.94
2001	38.65		45.61		59.06		62.63		76.10		78.00		87.52	b	89.67	a	83.20		65.65		53.07	a	46.00	c	65.43
2002	46.89	c	49.96		52.65		65.27		70.68		81.47		90.10		85.97		79.13		64.97		50.97		46.45		65.37
2003	46.32		50.61		60.39		64.53		72.48		83.97		92.84		90.03		82.60		70.68		49.83		42.83	a	67.26
2004	34.84		45.48		63.93	b	68.03		72.52		81.23		91.16		88.19		77.33		67.29		51.90		45.32		65.60
2005	39.35		51.70	a	61.97		-----	z	74.55		78.47		89.77		90.35		77.60		67.16		49.20		36.56	d	65.15	a
2006	50.32	i	47.61		56.45		64.83		74.00		80.17		92.17	a	87.94		79.53		65.65		52.03		39.06		67.22	a
2007	38.97		46.29		59.35		64.33		75.19		81.10	a	91.16		86.39		79.63		64.03		51.93		44.16		65.21
2008	39.84		50.10		55.39		61.07		73.06		77.83		89.10	a	86.74		78.77		65.35		52.70		38.45		64.03
2009	42.32		44.18		52.65		65.00		73.94		81.07	a	90.58		88.94		82.40		61.61		53.47		35.90		64.34
2010	46.06		50.89		60.35		62.80		68.87		76.80		87.07	c	86.83	a	76.73		65.45		49.40		41.30	a	64.38
2011	43.26		46.57		55.94		59.63		68.35		76.13		83.68		89.16		82.57		65.26		53.53		40.94		63.75
2012	44.68		46.83		57.35		65.77		71.87		75.60		87.90		89.23		-----	z	65.81		-----	z	42.61	m	67.23	c
2013	37.39		-----	z	57.77		-----	z	-----	z	-----	z	-----	z	89.68		80.53		-----	z	49.87		38.32		58.93	f
2014	42.23		-----	z	58.90		-----	z	75.07	b	80.10		92.03		89.45		80.97	a	70.40	a	50.17		45.84		68.52	b
2015	41.61		53.39		63.52		-----	z	-----	z	88.69	a	92.06		89.32		77.70		70.03		50.93		44.52		67.18	b
2016	40.84		53.54	a	58.73	a	72.13		76.10	a	83.03	a	87.29		90.10	b	77.60		64.48		57.57		39.42		66.74
2017	28.90		39.57		55.21	c	62.87		74.35		81.28	a	92.52		90.32		79.93		64.32		53.13		38.42		63.40
2018	45.16		49.71		57.23		64.17		77.63	a	79.54	b	91.45		88.43	a	79.07	a	64.77		50.56	e	45.10		66.07
2019	42.68		33.00	a	46.48		65.43		74.65		83.43		87.60	a	89.23		80.24	a	61.33	a	48.83		41.10		62.83
2020	46.74		52.79		57.45		66.53		74.16		79.93		89.55		90.52		80.33		67.48		51.97		42.55		66.67
2021	46.87		44.54		59.94		67.97		75.13		87.23		94.94		89.23		80.20		66.55		54.27		44.48		67.61
2022	38.42		49.11		59.65		58.80		66.74		78.37		92.87		94.31	b	83.87		71.87		46.77		-----	z	67.34	a
2023	-----	z	-----	z	-----	z	62.50		78.27	a	82.60		-----	z	88.90		-----	z	-----	z	-----	z	-----	z	78.07	h
Period of Record Statistics
MEAN	41.22		48.23		57.50		65.07		73.49		81.20		89.51		88.67		79.82		66.42		51.39		41.75		65.42
S.D.	5.37		4.59		2.87		2.92		2.99		3.55		3.34		2.84		3.15		2.54		2.93		4.00		1.33
SKEW	-0.89		-1.10		-0.73		0.26		0.11		0.32		0.08		0.73		0.06		0.46		-0.39		-0.91		0.44
MAX	51.26		55.46		63.93		72.13		81.87		90.70		99.00		96.55		87.13		72.87		57.57		49.52		68.68
MIN	25.37		33.00		46.48		58.80		66.74		74.97		80.13		83.19		72.67		61.33		43.93		27.03		62.83
YRS	63		62		62		63		62		65		64		64		63		65		64		64		47