WINTHROP 1 WSW, WA

Average of Maximum Temperature (Degrees Fahrenheit)

(459376)

File last updated on April 24, 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	44.45		-----	z	68.90		72.44	u	94.58		86.90		77.60		-----	z	40.48	a	-----	z	68.82	f
1907	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	71.44	c	-----	z	-----	z	-----	z	71.44	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	52.62	v	23.71	j	-----	z
1910	30.07	a	35.07		55.77		63.67	x	-----	z	-----	z	-----	z	78.50	w	-----	z	68.83	y	39.07	p	31.20	a	38.03	h
1911	27.07	c	38.81	a	54.74		66.50		72.10		81.25	j	87.13		83.57	a	67.00	f	62.40	a	37.45	a	31.06		56.08	b
1912	27.68		42.93		48.16		61.70		72.13		82.33		84.61	c	77.81		72.63		56.13		40.93		31.39		58.20
1913	24.45		31.71		44.10		64.07		68.87		77.28	a	85.10	a	85.77		75.37		58.35		44.33		30.90		57.53
1914	33.10	a	31.43		46.87		64.67		73.16		76.30		89.45		90.00	a	70.73		62.84		42.47		26.39		58.95
1915	28.58		39.79		54.61		68.24	a	67.48		77.43	b	82.90	a	92.90		76.10		62.77		37.50		30.87		59.93
1916	18.26		33.72		45.19		63.00	a	68.03	a	76.83		80.19		88.13		77.87		66.10		42.07		24.16		56.96
1917	30.16		33.57		43.13		57.80		71.03		74.30		90.48		92.19		79.87		72.87		61.71	b	49.56	v	64.28	a
1918	39.10		33.61		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	89.31	a	70.74		47.77		36.03		52.76	f
1919	34.55		36.85	a	46.27	a	65.97		73.32		81.67		93.90	u	92.10		80.57		59.38	w	45.96	b	30.63	d	58.79	b
1920	35.46	r	45.13	f	53.90		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	52.08	r	44.52	f	53.90	k
1921	-----	z	-----	z	-----	z	-----	z	73.00	a	77.30		85.42		86.13		69.17		65.16		43.43		29.16		66.10	d
1922	22.39		28.75		41.19		58.03		69.29		85.23		89.58		85.90		78.70		65.84		39.63		24.13		57.39
1923	30.19		32.43		47.13		63.13		69.32		75.43		88.23		86.65		81.50		65.27	a	47.90		30.87		59.84
1924	24.97		40.41		51.03		61.27		78.63	a	78.90		88.83	a	84.42		76.67		58.58		39.00		24.94		58.97
1925	29.84		40.61		52.29		64.17		74.55		80.13		91.26		84.77		75.23		62.71		42.83		35.81		61.18
1926	29.35		42.75		60.19		69.70		71.43	a	85.10		91.70	a	85.55		67.97		61.81		46.20		31.35		61.93
1927	28.06		37.36		47.97		60.41	a	66.48		78.13		87.13		87.67	a	68.70		59.03	a	39.80		25.37	a	57.18
1928	30.77		41.69		52.19		58.47		76.87		77.93		88.71		86.16		77.63		59.87		45.30		27.29		60.24
1929	19.77		27.11		53.32		58.50		72.03		76.59	a	88.06		88.84		73.57		64.81		45.60		32.68		58.41
1930	15.10		38.82		54.23		67.93		69.65		74.90	a	92.55		87.52		75.53		58.43	a	40.10	a	30.53	a	58.77
1931	31.87		36.96		50.13		64.53		75.45		77.60		89.90		88.23		71.20		61.87		39.37		29.29		59.70
1932	25.87		33.14		47.13		63.37		70.65		83.03		82.26		85.52		78.07		60.81		42.90		31.42		58.68
1933	30.45		30.36		46.81		63.77		64.74		77.93		87.87		88.35		68.60		60.39		45.63		33.58		58.21
1934	33.68		41.07	a	55.19		73.03		74.65		80.27		86.84		88.16		71.30		60.10	b	46.47		30.26		61.75
1935	27.90		37.46		44.48		60.90		71.77		78.40		85.16		84.39		78.63		60.39		37.57		29.42		58.04
1936	28.81		19.76		44.84		66.33		76.55		77.30		87.71		87.90		73.77		67.26		42.37		32.23		58.73
1937	16.13		30.36		47.65		57.57		70.58		76.23		87.68		80.32		76.67		63.55		43.20		31.68		56.80
1938	-----	z	38.18	q	-----	z	-----	z	70.74		82.76	a	90.10	a	83.81		82.13		62.61		42.72	a	30.13	a	68.13	d
1939	34.23		34.79		49.74		66.29	b	72.32		74.83		87.03		88.68		77.97		61.77		46.83		35.43	a	60.83
1940	31.58		38.07		52.58		63.13		73.16		82.27		85.52		86.81		79.60		61.65		39.53		33.29		60.60
1941	30.77		40.14		57.35		66.87		68.61		75.70		87.74		81.65		67.10		59.84		46.97		33.52		59.69
1942	26.48		37.39		48.32		64.87		66.00		72.87		85.45		87.32		80.97		65.84		37.21	a	28.81		58.46
1943	21.87		37.00		43.68		64.50		64.85	d	72.87		84.94		82.26	h	81.20		61.42		43.47		34.87		55.51	a
1944	32.00	a	39.24		48.13		62.10		70.71		76.83		85.39		82.71		78.80		69.94		41.47		27.84		59.60
1945	31.74	d	39.82		46.74		56.19	i	71.10		75.13		86.48		86.81		72.70		65.73	a	38.90		29.37	a	58.59	a
1946	32.26		35.96		47.36	f	61.73		74.26		71.53		83.74		84.52		73.00		56.74		38.03	a	28.77		58.23	a
1947	27.00		39.36		54.23		65.54	b	76.52		74.67		84.93	a	-----	z	76.97	a	59.52		45.53		34.81		58.10	a
1948	31.68		36.45		46.90	a	57.60		66.63	d	81.21	a	81.83	b	80.10	a	75.07	a	60.66	b	42.00		22.87		56.92
1949	18.58		31.36		48.63	a	66.07		76.48		78.17		85.70	a	84.90		78.30		59.06		50.34	a	32.71		59.19
1950	13.65		36.00		45.35		57.13		67.97		76.62	a	85.43	a	87.17	a	80.29	b	55.35		40.47		35.20	a	56.72
1951	28.57	a	35.39		42.55		64.30		70.87		78.00		88.67	a	84.84		77.63		57.57	a	42.20		25.00		57.97
1952	23.74		36.48		46.97		64.97		72.39		76.70		87.26		86.00		81.37		71.42		43.10		34.55		60.41
1953	36.10		42.07	a	52.07	a	59.40		69.16		71.07		85.61		83.58		78.07		66.84		45.60		36.55		60.51
1954	26.10		39.44	a	47.21	b	57.67		71.31	b	71.46	b	82.83	a	79.52		72.20		59.27	a	48.90		30.06		57.16
1955	28.03		34.56	a	39.68		54.33		65.00	b	77.50		81.17	b	85.90		77.23		58.58		31.83	a	25.03	a	54.90
1956	28.35		25.34		40.80	a	63.53		74.10	a	72.93	a	88.48		85.52		75.72	a	58.19		37.30		29.58		56.66
1957	18.35		33.07		49.63	l	63.40		75.48		78.60		83.35		79.74		82.10		58.32		44.53		33.13		59.10	a
1958	33.23		42.11		50.55		59.83		79.48		82.40		90.55		91.10		73.63		63.39		36.30		31.55		61.18
1959	29.43	a	35.50		47.77		63.33		69.87		76.73		88.68		81.18	c	70.80		59.87		41.13		32.68		58.08
1960	27.45		37.93		47.97		61.17		66.32		78.47		93.00		81.81		78.53		64.58		40.73		26.42		58.70
1961	30.29		40.36		49.13		61.07		69.29		84.50		90.19		92.19		73.90		58.97		37.47		28.32		59.64
1962	26.68		39.43		48.00		66.03		66.35		77.87		85.77		81.77		80.33		62.55		43.80		35.23		59.48
1963	30.58		45.93		53.52		57.69	a	71.77		78.17		81.58		86.33	a	82.28	a	63.10		41.70		30.42		60.26
1964	29.35		36.24		46.68		60.77		69.71		75.93		-----	z	77.73	t	74.50		64.55		41.86	b	26.23	a	52.58	b
1965	30.87		39.04		48.55		63.53		69.58		80.03		88.16		84.26		73.30		67.66	b	44.47		30.32		59.98
1966	25.55		37.29		48.10		63.43		74.45		75.33		80.32	i	85.26	h	81.90		60.53	a	45.57		35.06		54.72	b
1967	35.32		46.43		49.55		56.70		70.94		81.03		88.03		93.97		85.00	a	59.45		46.43		31.61		62.04
1968	31.39		40.69		-----	z	60.20		70.83	b	77.71	b	89.37	a	80.52		77.10		58.45		40.70		27.07	c	59.46	a
1969	14.47	a	32.89		47.19		60.53		76.45		84.83		85.00	a	84.90		76.92	d	60.79	b	44.54	b	30.60	a	58.26
1970	25.65		40.36		-----	z	57.60		72.84		84.47		89.53	a	88.87		72.47		61.55		40.20		26.32	c	59.99	a
1971	29.61		37.93		42.57	a	58.87		74.52		-----	z	89.79	c	92.57	a	70.46	d	58.25	c	39.62	a	23.71	c	56.17	a
1972	25.81		34.58	c	48.19		56.17		72.71		-----	z	83.30	d	86.73	a	69.41	a	64.85	d	41.68	b	-----	z	58.34	b
1973	28.70	a	40.18		52.94		-----	z	-----	z	-----	z	89.74		87.90		77.40		59.07	a	36.80		33.53	a	56.25	c
1974	26.77	a	40.18		47.10	b	-----	z	66.87		83.77		82.71		87.84		81.97		66.29		-----	z	32.55		61.60	b
1975	27.55		33.36		44.97		59.13		70.90		76.93		89.65		80.03		80.23		58.38	b	40.43		33.06		57.89
1976	30.90	a	37.90		46.03		61.60		71.65		75.37		85.10		79.94		80.90		63.42		45.43		32.86	c	59.26
1977	27.57	a	45.14		51.45		68.43		67.39		83.83		85.74		90.47	a	71.60		61.48		39.28	a	28.73	a	60.09
1978	30.55		38.21		51.16		59.87		68.68		82.30		87.90		82.87		70.00	b	65.48		38.03	a	27.14	b	58.52
1979	22.13		36.32		53.34	b	61.80		74.10		82.40		89.65		86.62	g	79.57		66.77	a	38.83	a	35.26		58.20	a
1980	22.90		36.31		48.53	a	64.83		70.13	a	73.80		86.45		82.94		76.10		65.42		42.43		31.45		58.44
1981	37.23		39.79		56.94		62.07		68.74		72.67		83.52		91.39		78.10		60.32		44.43		28.77		60.33
1982	28.23		36.71		50.13		57.83		70.00		-----	z	82.48		84.42		75.70		60.30	a	37.80		28.20	a	55.62	a
1983	34.45		39.14		51.68		62.37		74.87		76.87		80.32		86.16		72.27		62.32		41.83	a	19.61		58.49
1984	31.42		38.34		52.55		57.90		65.26		74.53		87.94		86.45		72.23		57.68		38.13		21.77		57.02
1985	27.00		33.57		49.63	a	63.70		73.90		79.87		94.87	a	84.39		69.83	a	57.39		30.17		24.39		57.39
1986	33.00		37.64		53.84		59.87		72.16		84.47		81.19		92.16		70.43		67.74		42.90		30.13		60.46
1987	29.84		41.64		52.45		68.17		73.71		83.34	a	84.32		86.16		84.87		70.26		47.27		27.48		62.46
1988	27.94		40.00		52.94		65.37		70.87		76.93		86.39		87.29		78.93		69.26		41.27		31.13		60.69
1989	32.10		32.56	a	45.86	b	66.30		70.23		81.20		86.06		81.87	a	80.57		62.94		45.63		33.29		59.88
1990	34.23	a	36.25		54.10		66.87		67.29		74.93		-----	z	86.16		84.13		58.27	a	45.83		23.55		57.42	a
1991	29.61		48.50		50.87		62.45	a	68.61		73.63		85.77		86.35		82.67		63.32		39.10	a	32.81		60.31
1992	32.26		43.00		61.19		64.17	a	76.77		84.53		82.61		86.20	a	73.27		63.27	a	41.57		25.71		61.21
1993	23.61		35.43		47.74		58.27		77.63	a	74.47		75.77		80.87		79.87		67.23		41.40		29.90		57.68
1994	35.07	a	34.70	a	55.90	a	65.97		72.45		75.66	a	89.42		-----	z	82.33		62.67	a	33.13		29.50	a	57.89	a
1995	30.00		40.59	a	47.68		60.30		74.55		76.60		84.74		79.10		80.66	a	59.03	a	41.03		30.10		58.70
1996	26.52		34.39	a	49.67	a	61.34	a	65.13		76.17		87.35		85.97		73.83		58.52		38.33		23.55		56.73
1997	29.33	a	37.29		45.68		57.80		72.16		73.80		81.58		85.39		76.97		57.97		45.97	a	32.26		58.02
1998	30.68		41.78	a	52.47	a	61.61	b	72.48		77.13		89.03		89.47	a	84.00		62.43	a	44.93	a	29.55		61.30
1999	34.73	a	38.64		47.68		62.43		66.77		74.03		83.16		86.19		76.80		60.80	a	45.76	a	35.13		59.34
2000	29.74		38.25	a	50.61		66.10		68.23		77.10		83.61		85.17	a	75.23		61.65		37.03		28.45		58.43
2001	33.03		37.71		54.16		60.17		73.70	a	74.13		85.61		87.30	a	79.23		59.52	b	45.50		30.27	a	60.03
2002	32.97		39.21		44.53	a	61.93		67.30	a	80.30		87.16		85.13		76.55	a	65.13		46.10		33.90		60.02
2003	33.32		41.04		51.55	b	59.89	b	68.63	a	81.00		89.67	a	88.48		80.03	a	64.73	a	38.60		27.65		60.38
2004	29.68		38.25	a	55.93	a	67.80		69.90		80.97		88.39		86.27	a	74.10	a	64.10		45.52	a	34.58		61.29
2005	27.87		45.71		56.03		63.23		73.42		76.14	b	85.93	a	88.58		75.17		61.03	b	36.92	f	27.74		61.90	a
2006	34.77		37.86		48.63	a	61.90		71.87		78.23		89.97		85.48	b	79.03		64.55	b	37.41	a	28.45		59.85
2007	27.97		38.50		50.73	a	61.37		73.65		76.87		90.55		84.30	a	77.31	a	59.06		41.00	a	27.39		59.06
2008	25.81		39.63	b	48.03	a	56.75	b	74.00	a	76.50		86.30	a	85.03	a	77.45	a	62.36	f	45.62	d	26.00	b	58.28	a
2009	27.61		37.67	a	45.74		61.90	a	72.26		80.43	b	89.23	a	87.42		80.93	a	57.26	d	43.38	a	28.97	a	59.40
2010	35.41	b	45.00	a	54.14	b	60.00		65.13		74.67		86.74		84.16		73.07		64.74		40.80		31.48		59.61
2011	30.97		36.11		47.55		55.60		66.19		74.40		81.84		88.13		81.67		60.03	a	40.30		31.93	a	57.89
2012	28.42		39.14		47.26		62.07		69.03		71.00		86.81		88.03		80.87		59.74		41.80		32.16		58.86
2013	24.87		40.89		52.10		61.67		72.16		75.90		89.65		84.94		76.37		62.68		41.67		27.87		59.23
2014	35.29		35.00		49.06		60.67		72.77		76.47		90.00		86.32		77.63		63.42		41.20		31.29		59.93
2015	30.94		44.50		59.03		62.53		75.42		86.33		89.39		86.42		74.27		65.19		39.90		27.84		61.81
2016	30.23		39.21		50.84		71.07		73.55		79.07		82.13		87.03		74.50		55.81		48.47		26.23		59.84
2017	24.06		32.32		47.35		57.37		72.42		78.67		89.52		89.58		76.93		59.13		39.40		27.90		57.89
2018	33.48		36.82		47.16		58.72	a	77.65		76.73		88.84		85.26		73.13		62.10		44.43		31.10	a	59.62
2019	32.00		28.61		45.23		61.53		73.68		79.13		83.00		87.39		71.83		55.03		44.83		29.84		57.68
2020	32.71		41.28		51.68		63.10		70.45		75.63		86.00		88.35		80.27		61.26		39.23		31.48		60.12
2021	33.39		35.04		51.29		65.37		71.81		84.87		92.97		87.13		75.20		60.16		44.07		28.45		60.81
2022	27.52		38.46		52.77		55.33		64.48		75.27		89.77		91.45		81.07		71.32		31.33		21.58		58.36
2023	32.97		36.93		45.55		57.43		79.10		80.80		88.19		87.03		76.10		62.32		42.36	b	34.68		60.29
2024	29.55		43.69		54.81		62.26	g	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	42.68	i
Period of Record Statistics
MEAN	28.87		37.50		49.61		62.14		71.29		77.98		86.78		86.08		76.69		62.14		42.06		29.90		59.19
S.D.	4.79		4.41		4.17		3.62		3.44		3.59		3.30		3.27		4.26		3.72		4.17		3.54		1.48
SKEW	-0.99		-0.67		0.25		0.28		0.06		0.40		-0.28		-0.11		-0.00		0.63		0.52		-0.42		-0.14
MAX	39.10		48.50		61.19		73.03		79.48		86.33		94.87		93.97		89.31		72.87		61.71		36.55		62.46
MIN	13.65		19.76		39.68		54.33		64.48		71.00		75.77		77.81		67.10		55.03		30.17		19.61		54.90
YRS	112		112		109		106		111		106		108		106		113		110		111		111		87