WINTHROP 1 WSW, WA

Average of Average Temperature (Degrees Fahrenheit)

(459376)

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
1906	-----	z	-----	z	33.10		-----	z	55.44		59.00	v	76.28	a	68.12	a	60.18		-----	z	32.48	a	-----	z	54.27	f
1907	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	59.79	d	-----	z	-----	z	-----	z	59.79	k
1908	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1909	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	42.19	v	11.48	j	-----	z
1910	18.75	a	18.11		39.52		44.42	x	-----	z	-----	z	-----	z	60.06	w	-----	z	50.33	y	25.21	p	23.41	b	24.95	h
1911	14.55	c	20.26	a	37.79		47.70		54.58		-----	z	-----	z	-----	z	53.19	i	46.18	c	27.02	a	20.55		33.58	d
1912	17.37		29.91		33.80	a	47.62		56.38	a	65.32		68.22	d	63.02	b	55.52		43.71		34.53		23.00		44.87
1913	13.83	a	18.57		32.76		48.50	b	54.19		61.98	a	66.68	a	67.66		57.28		44.24		35.12		24.38	a	43.77
1914	25.55	a	21.86		35.56		50.57		56.48		60.67		69.65		69.62	a	55.67		49.76		35.68		17.35		45.70
1915	18.06		30.62		41.24		52.12	a	54.00		61.54	b	66.68	a	72.52		58.18		48.63		27.55		21.42		46.05
1916	6.84		22.59		33.19		47.16	a	51.76	b	60.88		63.56		67.82		58.47		47.61		29.25		13.44		41.88
1917	16.34		22.32		28.76		43.62		55.05		57.80		70.42	a	75.38	b	59.52		52.34		41.16	b	28.39	v	47.52	a
1918	27.94		22.23		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	65.78	a	53.61		36.37		27.42		38.89	f
1919	23.47		22.96	a	32.50	a	48.70		53.07	c	60.08		68.78	v	68.85	d	60.08		39.88	w	32.64	b	17.50	e	41.99	b
1920	23.77	r	31.80	f	39.11		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	43.88	r	36.33	g	39.11	k
1921	-----	z	-----	z	-----	z	-----	z	56.00	a	61.82		67.31		68.08		53.33		49.50		32.77		20.18		51.12	d
1922	10.74		15.62		29.63	a	44.90		53.00		66.70		71.29		68.26		60.63		50.56		31.85		16.10		43.27
1923	20.76		20.57		33.87		48.22	a	54.11		61.07		70.00		68.79		61.60		49.00	a	37.00		22.23		45.60
1924	14.63		31.34		39.03		45.42		59.52	a	63.07		71.02	a	67.90		59.30		46.13		30.38		15.62	a	45.28
1925	19.63		31.88		40.15		49.22		57.55		63.13		72.35		66.77		58.90		46.16		34.28		31.26		47.61
1926	22.32	a	34.30		44.23		52.00		54.58	a	66.18		72.83	a	67.94		52.85		48.19		38.08		23.24		48.06
1927	19.37		26.38		36.03		45.67	a	52.15		62.68		69.45		68.77	a	55.30		45.53	a	32.05		16.05	a	44.12
1928	23.94		30.29		38.79		44.17		57.97		62.18		70.74		67.35		57.97		44.79		34.38		18.42	a	45.92
1929	8.87		13.07	a	39.81		43.52		54.53		60.93	a	67.19		67.89		55.42		47.22	a	30.88		22.87		42.68
1930	2.11		26.73		38.90		50.30		53.05		58.59	a	72.44		67.34		58.18		44.97	a	30.26	a	22.95	b	43.82
1931	25.23	a	25.07	a	37.90		47.50		57.13		62.52		70.32		68.58		57.52		47.39		29.92		22.63		45.98
1932	16.40		22.00		35.55		49.37		54.94		65.57		65.52		67.73		58.70		46.90		35.08		21.06		44.90
1933	21.16		18.20		35.58		47.53		50.81		60.18		68.31		68.11		54.10		46.29		36.92		27.68		44.57
1934	24.06		29.72	a	40.40		54.20		56.82		63.65		67.92		68.79		55.97		47.91	b	38.37		23.19		47.58
1935	19.84		26.02		33.00	a	44.53		54.21		61.57	a	67.32		65.03		60.07		45.39		28.25		22.81		44.00
1936	19.62	a	6.21		32.65		49.40	a	59.10		61.85		68.61		68.61		56.42		49.37		29.23		23.53	a	43.72
1937	3.90	a	17.73	b	35.35		42.97		53.34		61.40		70.55		63.69		60.13		49.16		36.00		24.42	a	43.22
1938	-----	z	28.27	q	-----	z	-----	z	54.68		64.33	a	71.65	a	65.10		63.43		48.53		32.62	a	21.28	a	52.70	d
1939	25.66		23.11	a	36.69		49.79	b	55.85		59.90		69.29		68.92		59.65		47.79		35.92		29.22	a	46.82
1940	23.08	a	28.64		40.44		49.77		56.85		64.95		69.13		67.58		62.85		50.13		30.30		26.33	a	47.50
1941	23.87		29.89		42.84		51.80		54.39		61.92		70.73		65.73		54.03		46.94		37.35		25.19		47.06
1942	18.83	a	27.80		36.47		49.50		52.81		58.83		68.05		69.13		60.93		48.98		29.96	b	21.25	a	45.21
1943	11.97		25.54		30.90		49.43		51.35	d	58.37		68.02		65.43	h	60.83		48.35		35.68		25.16		42.33	a
1944	20.10	b	27.05		35.35		48.20		54.82		62.32		68.23		65.31		60.57		52.08		35.17		19.58		45.73
1945	23.87	d	30.67	a	36.10		43.26	i	55.17	a	60.18		69.07	a	68.06		56.92		49.40	a	29.37		22.35	a	45.56	a
1946	22.44		24.52		36.34	f	47.63		57.24		57.83		66.35		66.45		56.97		43.45		27.91	b	21.33	a	44.74	a
1947	16.82		25.66		39.68		49.48	b	58.71		60.72		66.91	c	-----	z	58.76	a	48.16		35.32		26.40	a	44.24	a
1948	18.03		23.50		31.67	a	43.03	a	52.67	d	64.95	a	64.84	b	62.98	a	57.22	e	44.76	b	32.32		12.55		42.38
1949	5.40		19.27		36.30	a	48.95		58.55		60.78		67.42	a	66.08		59.53		43.81		39.36	a	22.00		43.95
1950	0.97		25.11		35.00		43.53		53.34		61.52	a	68.13	a	67.85	a	60.09	b	44.92		32.57		29.07	a	43.51
1951	20.15	a	23.52		29.87		46.98		55.27		61.42		68.85	a	67.03		59.57		46.53	a	32.33		15.18	a	43.89
1952	14.74		24.10		34.85		49.22		55.60		60.68		68.10		67.47		61.65		51.81		31.68		28.44		45.69
1953	28.03		29.11	a	39.12	a	46.07		53.60		57.32		66.61		66.05		59.10		49.03		35.93		27.13		46.42
1954	16.61		29.70	a	32.57	d	42.87		54.41	b	56.20	b	64.52	a	63.29		56.40		44.00	a	39.92		21.89		43.53
1955	19.55		23.43	a	26.94		41.33		50.98	b	61.47		65.43	b	65.63		58.38		44.55		22.79	a	15.27	a	41.31
1956	20.58	a	14.33		29.13	a	46.68		56.93	a	58.31	a	69.29		67.19		57.47	a	44.95		28.08		21.85		42.90
1957	7.90		21.04		37.24	l	48.27		60.06		62.47		65.66		62.08		61.62		45.71		33.92		26.02		44.98	a
1958	25.06		34.93		38.26		46.25		60.73		66.35		71.61		71.05		56.73		47.26		27.00		24.18		47.45
1959	19.43	a	23.73		34.92		46.80		53.15		60.52		67.90		62.64	c	55.32		46.00		29.97		24.31		43.72
1960	17.90		26.68	a	34.05		46.03		51.87		60.52		71.32		64.60		57.20		47.68		29.93		17.61		43.78
1961	21.79		31.73		36.90		46.38		54.66		65.05		70.26		70.76		55.48		43.11		26.63		19.76		45.21
1962	16.35	a	30.55		34.65		49.07		52.15		59.80		66.06		64.08		58.77		46.68		35.75		27.32		45.10
1963	19.32		32.79		39.55		45.34	b	54.21		62.07		65.24		67.27	a	62.45	a	48.68		33.32		22.76		46.08
1964	21.29		23.64	a	33.95		45.50		53.10		60.20		-----	z	61.14	t	55.67		46.45		32.75	b	17.30	a	38.98	b
1965	23.08		25.36		32.95		47.57		51.68		61.75		67.44		66.35		53.18		47.45	b	34.95		22.08		44.49
1966	15.89		27.48		33.32		45.07		55.53		57.88		62.11	i	65.07	h	62.13		44.78	a	36.13		28.18		40.64	b
1967	26.05		33.18		36.98		42.23		53.21		62.93		66.84		69.19		62.59	a	45.79		34.20		20.69		46.16
1968	22.39		29.04	e	-----	z	43.08		52.40	b	58.93	b	67.87	a	61.97		57.18		42.87		32.40	a	18.75	c	44.26	a
1969	4.05	a	21.25		32.89	c	45.22		56.94		66.28		64.93	a	63.56		57.33	d	43.81	b	32.70	b	23.60	a	42.71
1970	16.87		28.21		-----	z	42.95		54.48		65.85		70.15	a	66.92		54.32		44.19		30.48		17.80	c	44.75	a
1971	20.98		26.20		30.13	a	44.00		57.26		-----	z	68.34	c	70.02	a	52.33	d	43.73	c	32.10	a	14.00	c	41.74	a
1972	15.42		24.07	f	35.69		41.93		56.15		-----	z	63.37	e	66.69	b	51.84	a	45.15	e	35.21	b	-----	z	45.72	c
1973	18.00	b	28.57		39.56		-----	z	-----	z	-----	z	68.92		67.52		59.50		45.43	a	28.42		26.38	a	42.48	c
1974	16.74	b	29.66		35.86	c	-----	z	50.87		63.50		64.94		67.27		59.80		47.61		-----	z	25.39		46.16	b
1975	17.84		21.86		32.92		43.93		53.94		60.05		70.95		63.94		59.12		46.24	b	31.32		24.84		43.91
1976	21.78	a	26.72		33.02		46.18		54.48		57.78		66.63		64.15		60.72		46.89		33.68		24.27	c	44.69
1977	17.50	b	33.46		39.15		49.52		52.34		65.73		67.39		71.15	a	55.97		45.44		32.00	b	20.57	a	45.85
1978	23.58		30.45		38.77		46.97		53.27		63.58		69.24		65.44		55.71	b	46.02		28.17	a	15.09	b	44.69
1979	9.87		24.59		37.78	b	44.47		55.50		63.00		69.61		68.25	g	59.53		49.45	b	29.36	a	28.35	d	42.86	a
1980	12.65		28.50		36.55	a	48.73		55.36	b	58.25		66.13		64.05		57.58		46.98		33.70		24.58		44.42
1981	30.63		29.57		41.66		45.13		53.31		56.68		65.05		69.29		58.17		44.82		35.70		19.56		45.80
1982	19.44		25.12		36.61		42.00		52.65		-----	z	64.92		65.18		57.27		45.22	a	28.47		20.13	a	41.55	a
1983	27.20	a	30.84		40.23		46.13		55.71		60.42		62.50		67.18		54.13		45.69		35.31	a	10.24		44.63
1984	21.34		28.79		40.00		43.53		50.39		59.23		67.55		67.15		53.08		42.60		30.13		11.53		42.94
1985	18.92		18.77		34.72	a	46.35		56.03		61.38		71.42	a	65.00		53.91	a	44.55		20.10		15.81		42.25
1986	24.71		26.66		40.61		45.72		55.95		66.35		65.05		71.76		56.05		49.42		34.86	a	23.71		46.74
1987	21.58		32.11		40.29		51.50		57.26		65.29	a	67.84		67.15		62.80		50.11		37.23		20.40		47.80
1988	18.44		27.57		39.82		49.83		55.16		61.45		67.92		67.21		59.45		51.32		33.65		23.27		46.26
1989	22.58		21.74	a	35.14	b	49.73		54.24		64.92		67.34		64.80	a	59.77		47.19		37.12		27.69		46.02
1990	26.07	a	24.04		40.26		51.17		53.81		60.58		-----	z	68.52		63.00		44.18	a	35.93		16.69		44.02	a
1991	20.74		37.54		38.06		46.79	a	54.56		58.67		67.76		69.31		62.20		45.97		32.97	a	26.10		46.72
1992	26.10		35.48		45.18		48.43	a	58.32		67.95		67.27		67.75	a	56.28		48.42	a	34.78		17.19		47.76
1993	16.34		25.88		36.29		45.78		60.57	a	60.32		62.45		64.73		59.77		50.21		28.43		23.98		44.56
1994	27.23	a	26.63	a	40.65	a	51.48		56.79		59.97	a	70.87		-----	z	62.55		47.60	a	24.95		22.37	a	44.64	a
1995	22.47		30.31	a	35.74		46.33		57.95		61.50		68.44		62.05		61.69	a	45.48	a	33.32		24.19		45.79
1996	19.50		23.74	b	37.47	a	47.52	a	51.35		60.28		68.60		67.18		57.17		45.16		31.18		16.34		43.79
1997	20.85	a	25.91		35.47		44.85		56.66		59.53		65.23		67.92		60.48		45.27		37.09	a	25.11		45.36
1998	23.89		35.04	a	41.45	a	47.59	b	58.32		62.45		71.90		70.12	a	63.78		46.82	a	37.78	a	22.44		48.46
1999	27.62	a	29.64		36.03		46.27		51.84		59.75		65.71		69.18		57.47		45.28	a	39.60	a	29.37		46.48
2000	22.50		29.20	a	39.50	a	49.65		54.18		61.92		66.06		66.65	a	58.05		46.61		29.58		21.92		45.49
2001	26.26		26.79		40.68		46.03		56.10	a	59.62		68.69		69.43	a	61.47		45.52	b	37.35		24.35	a	46.86
2002	25.37	a	28.55		33.42	a	47.43		52.88	a	63.52		69.40		66.90		58.59	a	46.39		36.47	a	30.15		46.59
2003	26.87		28.89		39.53	b	47.16	b	54.12	a	64.38		70.97	a	69.52		61.41	a	50.35	a	29.68		20.27		46.93
2004	23.61		28.87	b	42.07	a	50.57		54.87		64.24	a	70.89		70.13	a	57.47	a	48.35		35.53	a	28.20	a	47.90
2005	22.47		31.00		42.45		48.52		57.80	a	61.39	b	67.83	a	68.76		57.67		48.62	b	29.94	f	20.98		47.95	a
2006	28.60		26.21		37.45	a	48.20		55.39		63.33		71.79		66.84	b	60.52		48.36	b	30.82	b	21.63		46.60
2007	17.50		30.62		39.20	a	46.90		56.19		61.53		72.58		66.25	a	59.43	a	45.56		31.93	a	19.13	a	45.57
2008	16.16		28.37	c	36.50	a	43.11	b	58.53	a	61.22		68.45	a	67.18	a	57.88	a	47.52	f	37.56	d	18.40	b	44.85	a
2009	18.97		27.22	a	34.15		46.50	a	55.21		63.59	b	70.47	a	69.52		62.62	a	45.02	d	35.21	a	20.92	a	45.78
2010	30.54	c	35.91	a	40.97	b	46.90		51.37		60.18		67.90		66.40		58.18		50.08		31.57		25.16		47.10
2011	23.40		25.71		36.90		42.32		52.15		59.70		64.81		68.71		61.57		46.60	a	29.83		22.18	a	44.49
2012	20.03		28.95		35.66		47.27		53.65		58.08		69.15		68.50		60.45		46.69		35.68		25.15		45.77
2013	17.18		30.50		39.10		47.13		55.87		61.43		71.13		68.44		60.90		45.61		32.95		19.58		45.82
2014	27.13		25.68		36.94		45.22		55.32		60.02	e	71.65		69.13		59.75		51.08		31.22		25.10		46.52
2015	24.92		34.86		44.68		47.18		58.05		68.55		72.02		68.45		56.87		50.69		30.63		21.87		48.23
2016	24.40		30.05		38.97		53.70		58.08		62.72		66.65		68.10		57.40		45.92		41.12		16.52	b	46.97
2017	17.00		23.09		36.52		45.18		56.18		62.68		70.81		69.76		59.18		44.42		33.85		21.66		45.03
2018	27.68		25.71		35.95		45.79	a	61.44		61.12		69.98		67.06		56.92		47.00		34.70		24.75	a	46.51
2019	24.39		17.66		32.32		47.68		58.52		63.33		67.18		69.27		58.78		41.82		33.37		24.97		44.94
2020	26.55		29.34		37.82		47.72		55.87		61.28		68.48		69.73		61.83		46.79		31.60		24.55		46.80
2021	25.65		26.80		37.73		48.40		54.92		67.48		74.87		69.71		58.62		46.18		36.63		20.69		47.31
2022	20.50		27.25		40.61		42.75		51.93	a	61.05		70.81		72.05		62.70		53.02		22.83		14.15		44.97
2023	26.69		26.38		34.40		44.13		62.77		64.92		70.56		69.53		60.05		48.42		34.54	b	30.16		47.71
2024	24.08		35.09		40.89		47.00	f	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	33.35	i
Period of Record Statistics
MEAN	20.02		26.52		36.79		46.95		55.12		61.79		68.48		67.43		58.59		46.97		32.88		22.04		45.38
S.D.	5.98		5.16		3.57		2.70		2.48		2.57		2.56		2.37		2.77		2.38		3.82		4.34		1.62
SKEW	-1.01		-0.74		-0.20		0.16		0.48		0.37		0.10		-0.07		-0.18		0.48		-0.48		-0.34		-0.26
MAX	30.63		37.54		45.18		54.20		62.77		68.55		76.28		75.38		65.78		53.61		41.16		31.26		48.46
MIN	0.97		6.21		26.94		41.33		50.39		56.20		62.45		61.97		51.84		41.82		20.10		10.24		41.31
YRS	112		111		109		106		111		106		107		105		113		110		111		111		87