SEATTLE UNIV OF WASHINGT, WA

Average of Average Temperature (Degrees Fahrenheit)

(457478)

File last updated on April 18, 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
1909	31.52	c	41.05		43.00		47.36	a	52.14	c	59.50		60.71		61.62	a	60.37		52.19		44.80		35.08		49.11
1910	36.82		36.83	a	47.08		48.61	c	56.39		57.25		62.00		59.06		56.59	g	50.44		42.35		41.65		48.95	a
1911	36.82		38.62	c	44.97		46.22		52.10		56.63		64.13		59.97		56.50		51.25	o	43.92		40.13		49.09	a
1912	41.19	d	42.78		43.26		48.85		57.19		59.84	b	64.27		60.66		58.95	a	50.58		46.27		41.74		51.30
1913	37.15		40.02		41.65		48.72		53.29		59.82		63.03		64.58		59.62		50.97		45.78		38.40	f	51.33	a
1914	44.85	d	40.38		42.58	g	50.43	a	57.33	b	58.25	d	-----	z	62.22	a	55.92		54.42		50.12	a	-----	z	52.66	c
1915	39.39	h	45.32		49.77		53.47		55.82	f	60.57		63.89		65.89		57.98		52.95		41.70		43.68		53.52	b
1916	31.66		41.10		43.16		48.30		51.15		59.02		61.18		63.52		57.95		49.60		43.33		38.00		49.00
1917	38.47		39.68		42.18		46.63		52.63		57.50		63.55		64.23		58.67		52.08		47.68		41.95		50.44
1918	41.00		36.25		41.44		49.10		-----	z	61.28		63.27		63.66		61.67		53.52	a	44.78		40.39		50.58	a
1919	41.40	b	42.14		46.44		52.10		55.61		-----	z	-----	z	-----	z	60.21	a	48.39	d	41.28		33.53		46.79	c
1920	32.90	a	30.31		35.88	a	36.78		44.42		52.36	h	60.52		59.58		53.78		-----	z	43.87		44.24		44.23	b
1921	41.94	g	43.31	d	45.05		48.18		54.32		61.27		61.47		63.13		57.93		53.55		46.57		39.90		52.24	a
1922	36.39		39.36		42.15		47.83		55.95		62.84	a	63.82		63.39		61.15		54.55		44.45		38.29		50.85
1923	40.81	d	37.64		44.30	a	51.75		54.87		61.00	a	65.10	a	65.22	b	61.27	b	55.02	a	48.02		42.76		52.31
1924	40.33	a	46.89	b	45.21	b	48.86	e	58.26	j	61.57	h	62.80	d	63.29	c	60.79	d	53.50		44.90		37.78	a	50.43	b
1925	42.63	a	45.21		45.21		51.70		58.52		60.98		65.08		62.89		60.13		51.55		45.53		45.69		52.93
1926	41.21		45.98		49.38	a	55.40		56.68		62.77		66.02		64.00		57.93		54.56		48.72	a	40.53	a	53.60
1927	39.92		43.11		43.58		48.82		52.24		61.16	a	64.50		65.50		58.58		53.35		46.33		37.45		51.21
1928	41.00		42.17		47.71		48.98		57.84		59.80		65.19		62.58		58.93		52.35	a	46.50		40.53	b	51.97
1929	33.61	d	34.48	a	44.50	a	47.14	b	54.35		58.83		63.60	f	64.45	a	61.07	b	55.68	l	44.26	a	42.81	e	48.55	b
1930	31.34	b	43.69	a	45.90	b	52.52	a	53.08	a	58.60		62.36	b	65.45	a	59.12	b	50.69	g	43.39	g	42.29	b	51.44	b
1931	45.55		44.52	a	47.24		-----	z	-----	z	61.02	a	65.81		65.50	a	60.47	a	53.24	b	43.05	a	41.60	b	52.80	b
1932	38.55	a	40.98	a	46.93	b	52.03	a	55.69	b	63.00	a	62.35	a	65.60	j	61.18		55.25	a	48.85		38.42		51.20	a
1933	39.71		38.05		45.77		50.30		53.38	a	59.71	a	63.27	a	66.44		57.47	a	54.26	b	46.57		44.19		51.59
1934	45.13		47.75		51.90	a	57.15		59.08		62.47		63.63		66.21		59.37		55.19		49.21	a	43.08		55.01
1935	40.84		45.18		43.17	a	49.48		56.15		61.62		64.52		64.16		62.47		51.65		43.16	b	43.89		52.19
1936	43.48		35.14		44.02		53.34	a	59.44		63.38		65.45		66.82		60.12	a	56.10		46.02		43.45		53.06
1937	30.44		40.55		48.58	a	49.13		56.82		63.48		65.29		64.55	a	61.70		56.50		48.07		44.34		52.45
1938	42.19		43.89		46.58	a	53.33		57.27	a	62.57		66.94		63.52		63.52		54.60		44.30		42.85		53.46
1939	43.89		40.04		46.00		53.50		56.94		58.85	c	65.60		66.26		60.05		53.32		50.31	a	46.34		53.42
1940	43.03	a	45.33		48.98		53.48		58.44		63.27		65.02		64.77	a	63.62		56.35		43.53		44.53	a	54.20
1941	43.88	a	46.34		51.21		54.33		56.61		61.95	a	69.11		65.24		59.12	b	52.50		49.22	a	42.58		54.34
1942	41.32		42.09		46.10	b	51.58		56.03	a	59.30		68.66		67.47		62.73		56.92	a	44.74	a	43.18	a	53.34
1943	34.82		44.34		45.28	b	53.00	b	54.40		59.67	a	63.94	d	64.77	c	63.64	a	55.12	a	47.52		41.62	b	52.34
1944	42.52	a	42.52		44.42		50.71	a	55.95		60.86	a	65.67	e	64.48	b	63.55		57.37		45.98		40.07	a	52.84
1945	42.63		43.00	b	44.09	c	47.52		58.00	a	59.98	a	66.87	a	64.82		58.33	a	54.27	a	44.42		41.33	a	52.10
1946	42.44		42.82		44.98	d	49.52		58.40	a	59.98	b	65.57	c	-----	z	60.12	j	49.82	c	42.27	j	42.62	j	51.69	d
1947	36.62	b	-----	z	49.18	c	53.17	c	59.22	a	61.70	b	65.39	d	64.34	i	-----	z	-----	z	44.88	b	43.98		51.77	d
1948	40.11		40.98		44.82		47.63		55.13	a	64.27		64.59	c	63.65	a	60.08		52.12	c	44.68		38.55		51.39
1949	32.69		38.73		46.57	a	52.37		59.16		61.27		64.20	a	64.63		61.78		49.76		50.32		41.08	a	51.88
1950	27.42	a	41.23		43.53		48.02		52.85		62.05		65.32		66.29		61.02		52.19		45.00	b	46.15	a	50.92
1951	38.79		42.34		41.85		52.40	a	56.87		64.00		67.44		65.50		62.23		53.19		45.87		38.40		52.41
1952	38.08		42.71		44.45		50.97		56.71		58.20	g	65.38	a	66.05		62.93		56.44		43.10		42.85	a	51.79	a
1953	45.98		44.00		46.60	a	48.97		57.19		59.07		66.81	b	66.03		61.27		54.74		48.57		43.16		53.53
1954	37.47		43.54		44.87	a	48.97		55.79	e	59.05		62.00		62.91	b	60.50		53.58		51.66	b	44.32	a	52.05
1955	40.71	c	40.68	c	41.62	a	47.13		53.27		59.88	a	62.95		64.02	a	60.62		53.91	c	40.00	a	39.45	a	50.35
1956	39.80	a	37.38		42.55	a	51.29	a	59.95		59.15		67.98		67.16		62.10		52.93	d	46.00	a	43.69		52.50
1957	35.72	a	41.34		46.55		52.29	a	61.16		63.85	f	-----	z	-----	z	66.21	i	54.92	g	46.92		46.43	c	47.20	e
1958	-----	z	49.91	a	46.33	a	51.75		61.98	a	65.50	c	70.95	b	67.95	c	61.65	g	54.90	e	45.83	i	-----	z	58.66	d
1959	42.18	a	42.42	d	46.25	a	51.88		55.65	a	60.87		67.83	g	64.22	b	58.55	a	52.91	b	44.59	a	41.62	b	51.01	a
1960	39.83	a	43.20	b	44.98		51.12		54.24	b	61.48	c	68.22	d	63.81	b	58.95		54.00	h	45.45	a	41.50	s	53.13	b
1961	43.70	h	43.11		45.00	e	-----	z	58.04	s	62.88	i	69.39	q	68.08	k	59.95	k	50.62	e	44.44	e	42.21	q	45.79	h
1962	39.59	d	43.98		42.98	k	52.38	b	53.61		59.50	j	63.32	f	65.00	m	61.64	l	54.57	b	48.50	d	44.50	a	48.16	e
1963	36.24		49.12		46.39	d	51.21	a	58.50		59.70	c	62.08	e	63.92	a	63.08	d	54.71	g	46.33	a	41.77	e	52.58	a
1964	-----	z	-----	z	45.50	b	48.84	a	54.45	a	59.69	a	-----	z	-----	z	58.72		53.65		40.88	i	37.61		51.21	e
1965	40.34		43.32		46.60		51.37		54.15		61.50		67.82	a	66.39		58.95		56.40		49.83		41.31		53.16
1966	41.24		43.39		45.60	a	51.18		56.24		60.97		64.21		66.27		63.23		53.58		46.95		45.65	a	53.21
1967	43.16		44.07		43.66		47.43		56.48		64.68		67.29		70.92		66.08		54.92		47.48		40.77		53.91
1968	40.08		46.71		48.63		49.13		57.11		61.07		67.84		65.03		60.17	a	52.65	a	46.82		37.45		52.72
1969	32.94		41.55		46.48		50.15		58.82		66.02		64.94		63.65		60.97		52.81		46.80		44.23		52.45
1970	41.26		46.89		46.22	a	47.87		55.40		64.30		65.68		64.97		58.43	c	51.90		46.88		39.77		52.46
1971	40.48		42.23		42.26		49.42		56.02		58.03		66.69		69.61		59.78		51.35		46.53		38.13		51.71
1972	36.81		42.09		47.29		47.40		58.52		60.53		67.06		68.58		59.12		52.16		47.22		38.53		52.11
1973	39.66		44.98		46.81		50.95		57.98		60.13		66.02		62.85		62.10		53.34		43.55		44.66		52.75
1974	39.19		43.00		45.37		49.22	a	53.61		61.42		64.68		66.97		65.72		54.79		47.37		44.08		52.95
1975	40.69		41.59		44.06		46.90		56.32		60.12		66.48		63.02		62.87		53.08		45.67		42.61		51.95
1976	43.16		42.38		43.29		50.90		56.85		58.98		65.50		63.05		62.58		54.42		47.83		43.79		52.73
1977	38.76		47.41		44.87		53.57		54.56		62.85		64.66		70.43	a	59.83		53.23		43.92		42.79		53.07
1978	43.65		46.64		49.40		51.40		56.74		66.88	f	67.73	a	66.34		60.05		55.97	b	41.75		40.03	b	52.70	a
1979	36.36	j	38.42	j	50.84		50.56	d	59.98		64.53		-----	z	66.97	m	65.93	a	56.77		45.87		45.44		54.99	d
1980	36.98	a	45.28		46.77		55.08		58.13	a	60.22	c	67.18		65.16		62.82		57.10		48.20		45.21		54.01
1981	45.22	b	44.08	d	50.89		51.46	b	57.26		60.77		65.80	d	71.53		63.55		52.24		48.13		41.92		54.40
1982	39.21		43.35	a	45.92		49.71	a	57.64	b	66.39	b	65.32	a	67.10		63.29	a	54.81	b	43.69	c	40.81		53.10
1983	44.55		47.91	a	49.25	a	53.38	a	61.73		62.17	a	66.15		-----	z	-----	z	-----	z	-----	z	-----	z	55.02	e
Period of Record Statistics
MEAN	39.42		42.51		45.59		50.32		56.17		61.05		65.07		64.89		60.64		53.53		45.96		41.77		52.44
S.D.	4.00		3.45		2.67		2.84		2.76		2.09		2.10		2.40		2.34		1.99		2.36		2.76		1.26
SKEW	-0.79		-0.71		-0.22		-1.20		-0.96		0.46		0.06		0.31		-0.02		-0.22		0.00		-0.57		-0.63
MAX	45.98		49.91		51.90		57.15		61.98		66.39		70.95		71.53		66.08		57.37		51.66		46.43		55.01
MIN	27.42		30.31		35.88		36.78		44.42		56.63		60.52		59.06		53.78		48.39		40.00		33.53		49.00
YRS	69		72		73		73		70		67		66		65		67		66		70		68		47