MUD MOUNTAIN DAM, WA

Average of Maximum Temperature (Degrees Fahrenheit)

(455704)

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
1939	43.90	j	41.63	a	50.16		59.37	c	63.53	a	62.43	b	73.42		76.03	a	68.68	b	59.97	b	57.97		50.69	b	60.35	a
1940	48.04	c	47.39	a	54.77		58.28	a	67.70	a	72.33		72.97		74.39		69.27		61.97	a	48.00	b	48.79	c	60.32
1941	50.10		53.70	a	59.97		60.93	a	62.07	b	66.75	b	77.87		72.37	a	63.69	d	58.97	b	53.78	c	45.07	b	60.44
1942	46.17	b	46.89		51.10		57.66	a	59.23		65.10	a	74.19		75.47	a	69.57		61.39		48.37		44.77		58.33
1943	39.90		51.25		49.16		57.70		58.32		63.03		71.68		69.42		71.07		58.97		53.70		48.26		57.70
1944	45.71		44.66		48.23		54.33		60.55		64.03		72.19		69.45		69.63		64.42		50.43		45.81		57.45
1945	46.61		45.07		47.71		49.67		62.13		63.70		75.26		73.06		64.30		60.83	a	47.30		44.57	a	56.68
1946	44.26		45.36		48.70	a	54.32	b	64.94		62.63		71.03		72.16		65.70	c	53.00	c	48.70		44.26		56.26
1947	40.71		48.93		54.29		57.83		65.94		63.90		70.26		70.19		67.97		57.58		47.10		47.03		57.64
1948	44.52		42.48		47.06		50.67		56.97	a	68.82	b	68.13		66.13		65.37		58.65		45.27		39.19		54.44
1949	35.52		42.21		50.29		56.33		63.52		65.17		69.84		70.50	e	69.03		53.81		57.90	a	42.35		56.37
1950	31.16		43.71		45.55		51.77		58.45		65.15	c	72.81		74.61		69.27		54.65		48.13		48.03		55.27
1951	40.41	b	44.82		43.50	a	60.00		60.65		69.03		74.77		72.29		70.40		56.65		49.53		41.24	b	56.94
1952	39.58		44.00		45.23		56.70		61.45		61.37		73.77	a	72.52		71.60		65.65		49.77		46.19		57.32
1953	49.10		47.14		47.77		52.03		58.81		59.97		70.80	a	70.48		68.53		59.81		52.50	b	46.29		56.94
1954	40.55		49.18		47.74		51.07	a	61.00		59.90		65.45	b	64.19		63.17		58.03		54.30		44.97	a	54.96
1955	41.23		40.89		40.61		48.50		55.90		62.53		63.65		69.81	d	63.73		56.81		43.23		42.74		52.47
1956	41.77		40.03		45.90		56.87		64.94		61.17		73.94		70.66	b	66.50		54.29		50.50		45.94		56.04
1957	36.94		43.25		47.55		54.30		63.10		65.10		67.81		67.42		72.63		57.35		49.80		47.32		56.05
1958	48.68		50.96		49.52		55.13		68.06		68.97		79.68		77.13		67.07		61.84		48.33		49.63	a	60.42
1959	44.81		42.14		47.81		55.03		58.71		64.43		74.32		70.84		60.80		57.26		50.73		44.97		55.99
1960	40.74		45.17		48.81		54.13		56.29		65.77		76.52		67.81		64.83		58.97	a	49.17		46.16		56.20
1961	52.10		47.43		50.26		50.87		59.19		71.30		74.87		78.13		64.80		56.90		47.63		43.06		58.05
1962	43.61		48.18		46.55		56.20		53.32		65.33		70.42		68.97		67.53		57.97		51.63		47.32		56.42
1963	38.23		54.46		48.42		51.37		62.23		62.23		66.42		68.94		70.30		59.68		49.57		47.10		56.58
1964	43.68		46.59		46.55		50.10		57.71		61.70		68.81		67.65		62.97		62.58		45.72	a	39.23		54.44
1965	44.68		45.14		51.90		54.83		57.23		65.77		74.23		71.39		64.20		62.74		52.10		43.00		57.27
1966	43.06		45.96		49.84		55.07		61.45		63.73		67.58		70.90		67.83		57.42		51.20		46.45		56.71
1967	45.32		46.82		46.26		49.47		59.90		70.17		74.00		81.71		74.13		58.81		51.73		42.97		58.44
1968	44.39		53.72		53.52		51.80		60.42		64.30		73.90		68.68		66.27		57.23		50.27		39.06		56.96
1969	35.81		44.11		52.00		53.90		64.58		69.17		70.94		68.77		66.10		56.39		51.30		46.65		56.64
1970	42.32		52.18		50.58		48.87		60.35		70.57		72.71		71.81		63.07		56.84		50.23		41.39		56.74
1971	42.29		45.57		44.87		53.47		60.74		58.83		73.26		76.68		64.83		54.94		46.73		39.32		55.13
1972	38.81		45.86		49.29		50.60		63.32		64.07		73.26		74.32		63.27		57.00		50.27		40.29		55.86
1973	41.16		48.71		49.00		55.30		62.65		64.07		72.97		68.68		68.30		56.26		44.13		47.87		56.59
1974	40.65		44.36		48.48		52.10		55.90		67.17		69.48		73.94		74.40		62.19		48.50		45.81		56.91
1975	41.94		43.25		47.42		49.90		60.90		63.43		72.48		67.06		70.13		55.65		48.13		46.52		55.57
1976	45.84		45.45		46.61		54.13		61.94		63.07		70.26		65.65		67.00		59.42		53.73		47.68		56.73
1977	43.94		53.07		46.74		58.17		56.45		67.20		69.65		77.35		63.67		58.26		46.90		44.39		57.15
1978	45.23		47.96		51.68		53.60		58.48		70.87		72.26		71.03		62.47		62.55		45.83		39.65		56.80
1979	37.65		44.29		53.87		53.87		62.71		68.43		74.00		70.55		69.43		60.29		49.37		48.97	a	57.78
1980	38.29		47.45		47.58		58.41	a	59.29		62.43		72.52		70.65		66.73		62.03		51.27		48.23		57.07
1981	50.97		48.57		54.23		54.67		59.06		62.57		68.29		77.65		68.27		56.19		53.53		46.00		58.33
1982	41.27	a	45.32		49.35		53.10	a	60.03		70.37		68.35		71.23		66.57		58.68		47.83		-----	z	57.46	a
1983	49.26		51.07		53.55		56.23		63.39		63.50		66.48		70.35		63.73		57.13		50.80		37.68		56.93
1984	46.93	a	49.28		51.84		53.10		57.00		62.97		73.29		73.35		66.13		55.39		49.07		40.35		56.56
1985	44.97		43.36		48.61		54.80		61.06		66.97		81.10		74.19		64.83		57.84		39.00		45.03		56.81
1986	50.73	a	48.04		55.87		53.67		61.23		71.60		67.65		79.68		65.23		63.65		49.10		46.55		59.42
1987	45.39		51.43		52.00	a	59.33		63.32		69.77		70.45		74.87		72.27		67.29		52.57		43.97		60.22
1988	45.68		49.17		50.97		55.77		60.48		65.40		72.55		73.77		69.00		60.32		49.97		47.74		58.40
1989	44.61		39.61		48.19		59.93		61.26		70.14	a	70.10		70.94		73.30		59.94		50.93		46.81		57.98
1990	46.97		45.11	a	53.94		57.27		59.26		65.60		77.13		75.52		71.97		58.52		50.79	a	38.47	a	58.38
1991	43.50	a	56.32		48.35		54.07		58.68		63.10		74.52		77.29		72.13		62.10		50.37		46.72	b	58.93
1992	49.77	a	53.62		56.45		59.77		68.52		72.57		72.55		76.74		68.70		59.06		48.33	c	41.87		60.66
1993	41.19	d	47.39		53.03		53.80		65.61		65.37		65.77		72.74		73.53		62.68		46.43	b	46.97		57.88
1994	48.38	b	44.72	c	55.52	b	57.48	a	65.00		66.30		77.42		75.48		73.63		59.10		45.18	h	44.54	e	60.69	a
1995	49.87		50.35	e	54.75	c	56.77		66.61		67.90	a	75.93	d	71.03		74.28	a	56.35		54.57		46.79	c	60.43
1996	44.00	d	50.96	c	52.35		57.33		55.70	a	66.79	b	77.71		76.68		65.36	b	58.68		47.68	b	44.52		58.15
1997	46.21	c	48.33	a	50.61		54.83	a	66.16		64.90		71.94		76.86	b	70.57		57.42		55.07		48.96	d	59.32
1998	47.41	b	51.00		51.77		56.07		58.10		64.85	d	75.42		74.52		74.07		61.13		50.45	a	44.53	a	59.11
1999	45.38	b	41.25		48.13	a	56.23		57.03		62.93	a	69.68		70.00	b	68.40		57.55	b	54.31	a	40.96	e	55.99
2000	36.81	d	41.38		41.03	b	-----	z	56.32		61.90		65.32		68.77		61.47		54.57	a	43.00	b	41.19		51.98	a
2001	43.27	a	42.78	a	47.48		48.97	a	57.45		59.77		66.29		68.16		63.77		52.87		46.40		37.77		52.91
2002	36.74		39.54		37.13		46.69	a	50.97		61.80		69.00		73.71		70.57		56.94		54.13		46.77	a	53.66
2003	49.33	a	44.54		49.29		51.20		58.68		69.73		78.35		76.84		71.90		60.32		40.72	a	40.19		57.59
2004	39.33	d	42.55		47.77		55.23		59.32		65.48	a	72.13		70.90		59.43		53.65		44.31	a	41.84		54.33
2005	41.97		46.39		50.35		49.27		57.55		58.55	a	67.94		70.55		60.53		52.87		43.83		41.16		53.41
2006	43.90		45.04		48.58		55.77		62.26		69.37		76.53	a	73.84		71.63		59.19		50.40		45.58		58.51
2007	43.65		46.89		49.03		50.70		59.58		64.27		74.90		71.94		65.67		56.84		50.13		42.16		56.31
2008	42.19		46.17		46.48		49.43		61.13		63.50		72.39		72.06		67.97		58.07	a	52.83		38.19		55.87
2009	42.94		46.57		44.55		53.27		62.52		72.04	d	78.11	d	73.42		74.50		61.84		55.67		39.52		58.74
2010	44.39		49.71		52.52		52.53		56.45		61.27		72.74		72.84		64.20		57.58		46.13		43.35		56.14
2011	42.87		40.75		47.65		47.03		53.65		61.43		67.23		73.42		73.00		56.23		47.47		41.87		54.38
2012	43.94		45.10		45.90		54.80		60.61		61.50		69.06		74.68		70.03		59.39		50.20		42.65		56.49
2013	39.97		42.68		48.71		53.17		62.19		68.30		75.58		74.52		68.33		54.39		48.93		38.90		56.31
2014	45.94		39.79		50.81		55.37		64.42		65.77		77.42		77.45		71.40		62.84		48.93		45.55		58.81
2015	48.39		51.96		55.48		55.73		62.77		77.57		79.77		79.52		65.53		60.81		44.80		42.23		60.38
2016	44.52		50.62		51.97		63.10		65.16		70.13		72.19		76.39		65.73		57.13		54.23		38.00		59.10
2017	40.84		43.86		48.74		54.20		63.55		67.83		76.55		82.58		72.10		58.39	c	47.67		43.19		58.29
2018	46.81		41.29		49.45		54.50		64.90		67.23		79.13		78.32		67.83		58.61		50.60		45.48		58.68
2019	48.97		38.46		53.19		55.53		66.71		67.80		72.00		76.61		67.57		56.10		49.57		43.23		57.98
2020	45.06		46.19	c	47.90		57.37		64.23		65.30		73.13		76.71		73.03		59.90		49.21	a	47.97		58.83
2021	45.84		40.21		49.06		59.87		62.32		74.73		78.39		77.19		70.13		57.13		51.13		37.97		58.67
2022	46.58		44.89		50.10		50.23		57.58		66.77		79.15	e	80.96	d	74.15	d	67.03		47.27		40.32		58.75
2023	45.58		43.11		49.55		51.83		69.35		68.90		78.03		79.00		68.93		60.06		52.30		51.42		59.84
2024	45.58		49.93		52.10	a	54.75	n	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	49.20	i
Period of Record Statistics
MEAN	43.80		46.24		49.50		54.34		60.92		65.76		72.61		73.09		68.02		58.68		49.54		44.10		57.23
S.D.	3.98		3.93		3.60		3.36		3.61		3.74		3.88		3.84		3.73		3.03		3.46		3.40		1.81
SKEW	-0.41		0.30		-0.22		-0.01		-0.01		0.52		-0.04		0.17		-0.07		0.47		-0.24		-0.19		-0.25
MAX	52.10		56.32		59.97		63.10		69.35		77.57		81.10		82.58		74.50		67.29		57.97		51.42		60.66
MIN	31.16		38.46		37.13		46.69		50.97		58.55		63.65		64.19		59.43		52.87		39.00		37.68		52.47
YRS	85		86		86		84		85		85		85		85		85		85		84		84		81