MOUNT VERNON 3 WNW, WA

Average of Average Temperature (Degrees Fahrenheit)

(455678)

File last updated on April 25, 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
1956	39.47		35.29		41.82		48.79	b	55.25	a	56.25		61.50		60.15		56.17		49.56		41.67		39.58		48.79
1957	29.76		37.38		44.55		50.05		57.03		59.47		60.29		61.17	b	60.00		50.34		43.00		43.76		49.73
1958	43.92		47.66		44.85		49.53		58.40		63.53		66.77		64.48		58.31	a	51.89		42.90		44.89		53.10
1959	41.02	b	40.66		44.72	f	49.28		53.95		60.00		63.31		60.42		56.68		50.81		42.52	a	40.44		50.83	a
1960	38.79		42.67	h	43.85		49.78		53.66		58.07		63.06		61.30	a	55.80		52.56		43.67		39.73	a	50.94	a
1961	43.68	a	45.59		46.55		48.48		54.63		60.75		63.77		64.27		55.75		48.42		41.60		39.87		51.11
1962	38.66		43.05		42.52		49.72		52.03		58.28		60.71		61.95		58.38		52.35		46.57		42.66		50.57
1963	33.56		46.80		44.35		48.58		54.61		58.45	a	60.24	b	62.55		60.98	c	54.02		45.02	b	42.03		50.93
1964	41.48	b	40.12		43.03		45.33		51.27		57.17		60.23		59.68		54.78		50.43	a	40.67		35.21	c	48.28
1965	38.26		40.70	c	42.74		48.85		50.92		56.88		61.87		61.97	a	53.71	b	53.00	a	47.16	a	39.56		49.64
1966	40.38	a	41.85	a	44.37		48.05		52.11		56.83	a	59.66		61.03		59.30		49.18		45.58		44.43	a	50.23
1967	42.55		42.19	a	42.25	a	45.98		53.52	a	60.65		61.98		64.77		60.22	a	52.82		44.53		39.90		50.95
1968	40.10		44.05		46.90		46.68		54.42		57.50		63.18		61.10		56.53	a	49.61		44.73		35.90		50.06
1969	30.15		40.04		44.32		48.05	a	55.63	a	61.92		60.13		58.97		57.33		49.23		45.07		42.17	a	49.42
1970	38.95		44.06	a	43.81		46.17		52.11		58.95		60.95		60.40	b	54.58		47.66		43.47	a	38.69	b	49.15
1971	38.74	d	40.81	a	41.34		47.93	a	53.08		55.43		61.02		64.23		55.33	a	47.89		44.81	a	35.53		48.84
1972	34.40		40.52		45.81		45.67		55.08		57.17		61.29		62.72	b	54.00	c	48.30	a	45.07	a	36.89		48.91
1973	38.78	a	42.70		45.13		48.07		54.98		58.58		61.18	a	59.73		59.15		50.98		42.05		43.27	a	50.38
1974	37.65	a	42.27		44.79		49.03		51.27		58.32		60.24		62.00		60.73		50.77		46.33		43.21		50.55
1975	38.76		39.81	a	42.90		45.45		53.73		56.70		62.06		60.73	a	58.00		51.06		44.63		41.26		49.59
1976	41.90		41.00		41.79		48.63		54.08		55.97		62.00		60.27		59.30		50.95		44.43		42.83	a	50.26
1977	36.47	a	45.50	a	43.35		49.52	a	52.74	b	59.12	a	60.47	a	64.92		56.27		50.32		42.52		40.67	a	50.15
1978	41.19		44.61		46.94		49.79	b	53.58	a	61.29	a	63.74	b	63.34		57.42		51.34		39.57		36.32	a	50.76
1979	32.58		40.38		45.87		48.42		55.11		57.58		62.85		61.82		60.70		52.44		41.60		44.11		50.29
1980	34.24		44.03		43.98		50.50		53.27		56.62		60.45		59.50		56.55		51.02		45.81	a	43.11		49.92
1981	43.21		42.57		47.11		48.10		53.66		56.13		61.05		63.42		58.03		49.31		46.97		40.26		50.82
1982	37.19		41.43		43.18		46.07		52.71		60.07	a	59.63		60.98		58.90		51.53	b	41.74	a	40.38	b	49.48
1983	44.00		44.94	b	48.27		48.72		55.97		58.65		61.03		63.21		56.27		49.50		47.45		34.43	c	51.04
1984	41.85		44.35	b	47.63		48.70		52.97		58.33		61.55		62.27		56.55		48.32		43.97		34.03		50.04
1985	33.84	b	38.59		42.74		48.70		54.10		57.75		64.71		62.05		55.78		50.58		33.03		35.35		48.10
1986	45.84		40.91		48.53		46.77		54.76		59.40		59.71		64.32		57.08		51.61		43.97		40.95		51.15
1987	39.95	b	45.36		48.35		50.72		54.82		59.40		61.47		62.10		58.55		50.18		48.27	b	39.31	b	51.54
1988	39.15		42.16		43.61		48.15		53.71		57.47		60.68		61.37		56.17		52.40		44.62		41.19		50.06
1989	39.67	a	33.85	b	43.55	a	50.78		53.44		59.83		60.44		61.15		58.02		50.53		45.45		40.94		49.80
1990	41.19		37.07		44.97		50.50		53.84		58.48		64.19		64.06		58.37		49.77		45.04	b	34.10		50.13
1991	38.29	b	46.50		42.47		47.93		53.15		56.22		61.79		62.97		58.28		48.02		45.65		44.25	a	50.46
1992	43.95	a	45.66		48.15		-----	z	57.27		61.90		63.24		63.03		56.82		52.61		44.58		37.20	d	52.22	a
1993	33.61		39.88		46.69		51.30		59.19		60.05	i	60.61		62.47		57.12		53.06		39.30	c	40.69		49.45	a
1994	44.77		40.50		46.65		51.35		56.48		57.77		63.89		63.79		60.50		50.00		41.38	a	41.16		51.52
1995	42.52	a	43.88		46.18		49.33		56.24		60.62		64.39		61.50		61.57		51.19		48.95		41.83	a	52.35
1996	39.24		41.98	a	46.29		51.93		52.73		58.65		63.71		63.39		56.68		50.32		43.12		37.65		50.47
1997	41.42		42.07		45.85		49.93		57.95		59.97		62.84		65.89		61.10		51.68		47.63		41.97		52.36
1998	42.65		46.46		47.10		49.20		55.00		59.58		-----	z	64.34		59.93		51.60		47.48		39.95		51.21	a
1999	42.61		43.75		44.92		47.68		51.95		57.72		60.97		62.92		57.50	a	50.05		48.17		41.37		50.80
2000	40.26		-----	z	45.11		50.63		54.16		59.97		-----	z	61.71		58.25		-----	z	-----	z	40.08		51.27	d
2001	42.45	b	39.45		45.16		47.72	a	54.31		57.37		-----	z	63.29		57.85		49.76		47.28		40.82		49.59	a
2002	41.26		-----	z	40.95		48.58		53.02		-----	z	62.74		62.92	a	58.00		49.65		47.20		44.02	h	51.59	c
2003	44.06	d	40.77		46.84		49.65		54.97		61.62		-----	z	-----	z	60.07		54.53		41.00	b	42.43	a	49.59	b
2004	41.24		43.90		47.92		52.47		56.50		61.55		65.00	f	66.47		57.62	a	50.79		43.43		40.98		51.17	a
2005	39.56	d	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	39.56	k
Period of Record Statistics
MEAN	39.58		42.11		44.92		48.78		54.27		58.72		61.85		62.36		57.78		50.71		44.18		40.15		50.30
S.D.	3.70		2.98		2.04		1.67		1.83		1.84		1.61		1.71		1.93		1.59		2.87		2.89		1.06
SKEW	-0.84		-0.47		0.01		-0.16		0.58		0.42		0.80		0.19		0.03		0.17		-1.17		-0.59		0.30
MAX	45.84		47.66		48.53		52.47		59.19		63.53		66.77		66.47		61.57		54.53		48.95		44.89		53.10
MIN	29.76		33.85		40.95		45.33		50.92		55.43		59.63		58.97		53.71		47.66		33.03		34.03		48.10
YRS	50		46		48		48		49		47		44		48		49		48		48		48		39