VASHON ISLAND, WA

Average of Maximum Temperature (Degrees Fahrenheit)

(458802)

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
1891	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	78.81		66.37		62.42		-----	z	-----	z	69.20	i
1892	-----	z	-----	z	56.68		58.07		67.93	a	70.90		76.06		78.72	b	71.10	a	56.23		53.00	f	-----	z	66.96	d
1893	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1894	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1895	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1896	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1897	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1898	43.23		49.79		50.58		57.40		66.13		69.28	a	74.10		75.13		68.90	a	57.03		48.43		44.93	a	58.74
1899	51.62	w	43.39		50.00		55.40		59.32		66.50		74.29		67.77		-----	z	56.52		54.53		47.19		57.49	b
1900	48.00		46.68		56.39		59.43		63.45		69.50		73.00		71.06		66.37		56.32		48.63		48.45		58.94
1901	43.45		47.07		51.39		55.17		62.23	a	62.71	b	70.39	c	73.88	n	64.27		62.33	d	51.65	g	45.97		56.50	b
1902	43.31	e	49.32	f	50.16		56.43		63.83	b	68.33		71.97		73.03		65.97		58.50	a	49.40		46.18	c	58.83	a
1903	45.79	c	45.11		48.58		54.73		62.20	a	69.24	a	69.74		70.81		64.17	a	57.45	b	49.83		45.97		56.97
1904	45.42		44.17		47.74		60.40		63.47	a	68.87		72.67	m	72.13	a	71.38	n	58.74		53.00		47.42		56.14	b
1905	43.81	d	48.85	a	54.81		60.60		62.63	a	68.13		74.10	a	72.03	a	66.20		54.03		49.27		45.32		58.32
1906	46.06		48.25		51.87		62.23		62.70	a	66.37		77.65		73.74		64.63		58.71		48.68	b	46.57	a	58.96
1907	39.07	b	46.54		48.81		57.63		67.45		69.97		76.10		71.58		64.97		57.13	a	52.37		46.77		58.20
1908	46.13		47.68	a	52.19		58.90		61.58		69.30		75.68		70.65		62.63		55.81		52.37		43.97		58.07
1909	39.13		46.89		50.35		55.93		61.39		70.23		71.10		70.16		67.93		56.65		49.87		40.65		56.69
1910	43.79	b	43.50		54.03		58.80		65.84		67.47		72.77	a	68.74		65.03		57.35		48.83		46.35		57.71
1911	42.42		45.18		52.06		55.87		61.90	a	65.97		73.90		69.00	f	62.67		56.94		48.83		44.74		55.50	a
1912	45.94		48.32	a	49.97		54.53		63.74		67.80		70.48		68.23		64.77		54.58		49.83		44.97		56.93
1913	40.26		45.18		48.29		57.53		61.52		67.63		71.06		72.90		65.14	a	54.81		49.72	a	45.68		56.64
1914	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1915	46.65		-----	z	-----	z	-----	z	-----	z	70.17		77.39		80.35		69.63		61.61		49.80	e	47.58		62.90	d
1916	36.45		48.67	b	51.48		59.17		62.58		70.27		71.52		76.52		71.70		60.68		49.80		44.46	g	59.89	a
1917	45.00		45.14		49.97	a	55.93	a	63.03		69.21	a	76.03		80.32		71.63		62.77	a	58.90	a	52.03	a	60.83
1918	50.77		47.37	i	56.83	m	60.20		63.00		74.00		74.77		74.03	a	74.93		60.10	b	52.07	a	46.63	a	63.05	b
1919	46.16		46.14		52.42		58.17		64.48		68.52	a	75.93	b	75.58		70.33		55.17	b	51.16	e	43.17	a	58.94
1920	45.19		45.83		52.55		54.70		62.94		69.13		75.97		77.45		66.53		56.57	a	53.90		46.87		58.97
1921	46.00	a	48.46		52.16		57.07	a	63.64	c	68.43		71.77		73.83	a	66.30		58.00	a	49.50		42.46	c	58.14
1922	40.45		43.31	b	44.90		51.87		58.83	b	68.97	a	75.39		73.00		70.20		59.84		50.20		43.17	b	56.68
1923	45.45	b	44.39		52.10	b	60.63		63.26		71.37		75.68		77.40	a	70.93	c	63.47	a	54.62	a	48.35		60.64
1924	46.00	a	52.04	b	51.81		58.21	a	67.86	b	71.69	a	75.34	b	70.39	c	69.75	b	57.07	d	49.00	j	43.10	a	60.30	a
1925	47.24	b	50.78	a	53.18	c	59.07	b	70.63	l	-----	z	-----	z	-----	z	-----	z	-----	z	46.43	w	-----	z	52.57	h
1926	47.19		52.57		59.10		66.63		67.43	a	74.33		78.68		75.83	a	67.53		61.23		54.28	a	44.68		62.46
1927	44.04	d	49.36		51.32		58.57		60.87		71.13		76.10		76.32		66.40		60.23		49.10		41.94		58.78
1928	46.10		48.59		54.90		57.40		67.74		68.80		74.84		74.13		67.60		57.61		51.23		45.00		59.50
1929	39.55		42.00		52.55		55.45	a	63.90		67.47		75.03		-----	z	-----	z	-----	z	-----	z	-----	z	56.56	e
1930	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1931	53.00	x	50.64		53.52		61.80		68.65		70.23		75.94	o	75.68		66.80		50.22	h	44.80	o	44.03	a	61.42	d
1932	41.80	a	46.04	b	51.16	l	59.04	d	63.63	a	72.03	a	71.41	b	70.94	o	69.47	k	60.77	i	50.09	s	49.29	x	58.99	f
1933	42.44	f	42.36	c	51.04	e	57.71	f	59.26	l	68.22	u	72.38	e	75.97		64.10	t	61.63	l	51.17	l	48.75	w	60.44	h
1934	49.08	g	52.33	y	56.70	a	62.81	c	65.65		70.76	a	72.91	h	72.67	p	70.11	u	60.52	d	51.97		46.47	n	61.40	f
1935	45.11	d	50.68	c	48.89	c	57.34	a	65.18	c	69.04	d	73.90	b	69.81		68.32	h	51.38	b	42.38	i	43.86	c	57.52	b
1936	-----	z	37.88	e	49.71		61.86	b	66.27	e	70.63		74.29		76.67	d	67.20	e	56.50	y	51.29	b	46.70	a	60.25	b
1937	34.26		46.30	e	55.16		56.62	a	64.64	c	70.22	c	74.27	a	72.00		70.29	f	62.67	a	52.00	c	47.52	d	57.79	a
1938	45.42		49.30	a	51.86	b	62.03	a	66.21	b	72.57		77.90	a	72.97		71.29	b	60.40	a	49.47		46.94		60.53
1939	46.52	b	44.38	b	52.03		59.33	o	-----	z	-----	z	76.07	d	76.26		68.27		59.83	a	56.42	d	50.59	d	58.93	c
1940	48.10		50.25	a	57.26		61.72	a	68.06		73.60	o	75.94		74.68		71.28	a	61.87	a	48.40		48.37	a	60.54	a
1941	48.52		53.61		61.33	a	63.66	a	66.20	a	71.17	a	79.74		73.81		65.50		59.23		54.21	a	46.90		61.99
1942	46.19		48.26	a	54.90		61.07		66.20	a	69.77		79.10	a	79.04	e	70.36	b	63.50	a	49.46	b	46.53	a	61.20
1943	40.13		51.19	a	52.71	c	62.04	c	64.14	b	70.21	a	75.70	a	73.68		71.63		58.69	r	52.90		46.68		60.09	a
1944	47.23	a	48.63	b	52.86	c	60.07		66.31	b	71.79	b	79.12	g	74.50	a	72.87		63.52		50.74	c	44.48	d	59.36	a
1945	47.10	k	48.43		50.81		55.79	a	66.47	a	69.27		76.23	a	73.52		66.00	a	59.46	g	48.94	l	45.33	a	61.32	c
1946	45.20	a	48.15	b	51.68		57.13		68.33	a	69.04	c	74.69	b	73.21	c	67.45	a	52.04	f	44.91	g	42.60	a	59.75	b
1947	40.18	i	48.11	i	53.39	h	57.70	g	64.10		65.63	k	-----	z	70.07	q	65.14	h	57.89	c	50.27		47.13	a	54.85	h
1948	-----	z	-----	z	-----	z	-----	z	-----	z	72.97		74.39		71.16		65.70	c	57.55		48.00	a	41.26		61.58	e
1949	37.32		43.82		52.87		60.63		69.26		71.43		74.26		75.28	b	71.17	a	56.65		56.27		44.87	a	59.49
1950	32.42		46.64		49.45		57.57		63.07	a	73.07		75.73	a	76.71		69.67		56.33	a	49.40		49.68		58.31
1951	43.29		47.39		47.34	b	62.43		66.03		75.60		78.17	b	75.03		70.14	a	57.83	a	50.97		41.94		59.68
1952	42.23		47.72		50.47	a	60.90		65.81		68.63		77.13		77.13		71.67		61.60	a	49.07		47.32		59.97
1953	49.06		48.07		50.77	i	57.50		65.16		67.40		75.23		74.77		69.83		61.35		52.60		47.92	f	62.10	b
1954	41.33	g	50.46		51.13	a	56.33		65.35		66.63		70.87	a	70.42		66.90		58.43	a	53.87		46.63	a	59.73	a
1955	44.45		45.78	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	45.11	j
Period of Record Statistics
MEAN	43.94		47.20		52.08		58.64		64.54		69.69		74.68		74.06		68.05		58.68		51.23		45.74		58.97
S.D.	3.82		3.00		3.02		2.84		2.41		2.29		2.39		3.04		2.88		2.80		2.49		2.34		1.59
SKEW	-1.07		-0.41		0.64		0.27		-0.11		-0.03		-0.18		0.02		0.16		-0.07		1.02		0.07		0.39
MAX	50.77		53.61		61.33		66.63		69.26		75.60		79.74		80.35		74.93		63.52		58.90		52.03		62.46
MIN	32.42		37.88		44.90		51.87		58.83		62.71		69.74		67.77		62.63		51.38		48.00		40.65		56.64
YRS	47		50		50		51		51		51		50		50		47		48		45		48		27