DAYTON 1 WSW, WA

Average of Maximum Temperature (Degrees Fahrenheit)

(452030)

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
1893	-----	z	-----	z	-----	z	53.63		66.45		74.07		83.00	e	-----	z	73.60		60.90		48.60		47.43	a	63.46	d
1894	41.42		40.64		51.16		-----	z	-----	z	73.83		90.74		89.06		71.37		-----	z	-----	z	-----	z	65.46	e
1895	-----	z	-----	z	-----	z	66.23		-----	z	-----	z	-----	z	85.39		67.33		67.94		48.20		-----	z	67.02	g
1896	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	41.27		46.42		43.84	j
1897	38.77	a	45.54		46.58		64.45	a	76.00		74.17		-----	z	89.74		72.53		65.03		47.08	d	40.90		60.07	a
1898	37.32		52.04		48.94		64.10		69.32		76.73		-----	z	-----	z	77.53		62.10		44.93		33.55		56.66	b
1899	42.32		37.22	a	49.20	a	59.27	o	63.61		74.13		87.90		75.17	a	78.50		57.48		57.90		45.00		60.77	a
1900	49.23		41.00		58.42		64.80		73.97		82.13		87.97		80.10	a	75.20		65.52		50.14	a	48.39		64.74
1901	39.45		42.15	a	55.30	a	60.60		70.32		74.47		89.90		95.38	e	-----	z	-----	z	-----	z	-----	z	65.95	d
1902	38.13		48.68		-----	z	60.40		65.94		75.13		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	57.66	g
1903	-----	z	-----	z	52.29		58.20		68.81		81.80		80.48		81.52		71.63		67.48		50.77		39.39		65.24	b
1904	44.43	a	46.17		48.06		65.27		-----	z	74.47		81.74		87.52		78.90		68.13		59.76	a	44.87	a	63.57	a
1905	39.90	a	43.23	b	56.74		64.10		65.29		72.77		87.55		84.97		75.20		57.57	a	53.73		41.65		61.89
1906	45.32		43.86		51.03		68.13		67.81		73.13		92.00		83.77		-----	z	-----	z	-----	z	-----	z	65.63	d
1907	-----	z	-----	z	-----	z	-----	z	69.94		70.87		80.97	a	75.57	a	70.62	a	68.50	a	53.83		44.70	a	66.87	d
1908	43.23		44.52	d	51.78	d	62.46	f	66.55	b	73.92	e	88.41	d	83.54	e	76.93		61.61		56.50		40.06		62.46	a
1909	34.94		46.89		56.55		58.40		66.81		76.30		80.84		83.71		75.43		64.26		51.50		33.00		60.72
1910	39.07	a	37.29		60.60	a	-----	z	72.71		75.13		86.03		80.74		72.87		65.53	a	48.63		42.42		61.91	a
1911	42.23		39.46		58.71		61.50		64.77		74.67		85.20	a	81.68		68.47		63.97		49.77		42.77		61.10
1912	40.42		44.97		49.61		59.97		69.19		75.60		81.16		77.87		70.50		59.42		52.97		43.87		60.46
1913	38.52		36.68		48.23		62.03		69.48		73.37		81.77		83.23		75.73		58.52		51.63		38.65		59.82
1914	49.97		40.79		55.29		61.37		69.77		71.63		88.10		85.29		70.57		62.90		51.50		33.58		61.73
1915	36.68		52.11		60.13		66.55	a	68.97		78.70		85.13		93.58		74.37		65.39		48.73		45.52		64.65
1916	27.10		38.41		54.19		62.77		65.23		77.17		82.16		88.23		76.60		65.03		43.60		37.27	a	59.81
1917	39.10		41.07		45.03		55.37		67.42		77.90		91.61		91.74		80.62	f	69.71		56.70		49.58		62.29	a
1918	44.65		43.57		56.29		63.57		64.61		86.67		88.23		82.80	a	83.41	a	67.06		48.53		42.06		64.29
1919	46.29		42.18		54.77		64.33		71.74		79.67		91.48		90.35		75.86	a	58.42		45.77		32.35		62.77
1920	37.67	a	45.10		50.74		57.23		68.03		76.90		91.74		87.87		75.13		63.06		50.17		45.00		62.39
1921	43.32		48.07		55.07	a	59.90		72.68		82.77		88.90		88.90		69.90		70.42		52.37		37.17	a	64.12
1922	31.77	a	38.48	a	50.32		57.57		71.61		89.37		93.67	a	82.94		78.97		64.42		40.83		36.26		61.35
1923	42.87		34.68		53.35		63.93		68.97		72.14	a	86.50	a	85.21	b	76.30		59.61	c	48.17	a	39.25	c	60.91
1924	34.28	b	51.83		49.61		61.47		78.48	b	79.41	a	85.25	c	82.07	a	74.71	b	61.87	a	43.37		33.00		61.28
1925	46.17	b	50.96		54.93	a	65.55	a	72.39		80.10		90.83	a	83.35		72.77		61.45		47.73		44.74		64.25
1926	38.65		52.61		59.16		69.07	a	70.10		83.07	b	89.47	a	88.10		68.33		64.45		51.37		42.30	a	64.72
1927	36.23		46.89		50.74		59.60		63.48		77.87		87.19		84.77		67.83		63.65		50.90		36.48		60.47
1928	37.60	a	43.79		54.81		58.30		77.39		78.53		88.60	a	83.61		77.23		62.48		50.07		38.93	a	62.61
1929	28.06		33.32		54.27	a	58.24	a	72.06		80.83		85.47	a	89.23		73.48	a	67.90		51.93	a	47.10		61.82
1930	23.07	a	50.79		54.00		67.37		67.42		76.38	a	87.00		88.81		76.00	a	56.61		47.03		36.48		60.91
1931	43.67	a	43.86		52.57	a	60.23		73.74		76.50		88.58		87.32		73.60		64.00		43.50		40.00		62.30
1932	39.23		41.82	a	49.74		61.93		67.94		79.69	a	82.97		83.58		78.03		64.45		53.57		36.90		61.65
1933	41.81		36.82		53.52		60.10		63.61		76.70		87.77		86.74		72.03		68.67	a	50.50		48.58		62.24
1934	50.23		51.00		61.10		70.07		74.97	a	79.27		88.16		89.00		74.10		64.32		49.72	a	39.48		65.95
1935	43.61		45.68		48.84		57.60		70.68	c	78.07		86.84		85.70	a	82.53		67.30	a	44.60		37.33	a	62.40
1936	41.67	a	28.55		52.48		66.23		76.68		79.70		87.81		85.71		76.31	a	69.94		48.93		46.45		63.37
1937	26.39		43.89		56.77		58.57		72.48		77.70		88.68		82.10		79.03		68.42		53.57		43.06		62.56
1938	40.61		43.18		52.42		62.47		70.00		80.73		88.97		83.55	b	83.37		65.10		45.77		43.48		63.30
1939	46.55		41.86		53.81		66.07	a	72.93	a	73.93	b	87.68		88.48		78.90		65.00		57.17		49.10		65.12
1940	39.55		47.55		58.10		61.03		75.45		83.21	a	85.81		87.55	b	76.80		66.32		42.90		44.55		64.07
1941	41.39		50.61		60.26		64.57		67.35		74.20		89.55		83.16		68.10		58.68		54.80		44.81		63.12
1942	29.94		42.93	a	54.55		64.55	a	65.83	a	72.93		87.76	b	89.26		80.17	a	68.23	a	46.57		44.81		62.29
1943	33.97	a	43.86		50.26		64.40		64.71		73.60		87.97		84.03		82.43		64.97		47.24	a	37.65		61.26
1944	40.94		42.62		51.13		62.90		71.48		76.80		88.76	b	86.06		81.03	a	72.68		47.47		34.50	a	63.03
1945	41.58		46.07		49.35		57.77		70.39		75.68	b	89.61		88.16		72.40		67.65		48.86	a	40.58		62.34
1946	43.71		47.75		51.77		64.27		71.73	a	74.60		86.23		87.61		73.87		57.29		47.62	a	43.90		62.53
1947	39.55	b	48.61		57.61		62.87		77.13	a	74.76	a	86.06		83.52		76.37		63.03		46.30		43.65		63.29
1948	40.94		42.86		49.52		56.50		64.71		79.27		81.90		81.29		75.10		63.65		48.97		36.06		60.06
1949	26.00		41.32		52.39		67.07		74.55		77.50		85.06		84.94		77.17		59.16		54.77		42.10		61.83
1950	25.43	a	43.86		49.06		58.37		67.94		73.57		86.10		86.39		78.63		62.61		48.63		44.77		60.45
1951	39.26		44.71		48.74		65.53		71.90		77.57		90.10		86.74		78.57		59.32		48.93		36.87		62.35
1952	37.58		46.55		51.32		68.67		72.87		77.60		90.55		87.71		82.63		73.29		44.10		42.13		64.58
1953	52.10		48.04		54.65		59.77		67.97		71.73		89.74		86.19		82.37		67.16		54.53		45.55		64.98
1954	40.90	a	44.00		51.55		60.43		73.00		74.00		87.77	a	81.60	a	75.97		63.16		55.07		42.19		62.47
1955	39.74		43.18		47.00		55.77		64.71		77.60		82.10		84.90		75.20		63.42		40.97		39.13		59.48
1956	41.81		35.07		52.03		65.41	a	71.42		74.43		87.68		83.50	a	77.27		59.77		43.17		44.03	a	61.30
1957	26.90		42.43		52.00		62.17		71.32		76.53		82.68		80.13		78.33		57.35		51.03		48.10		60.75
1958	43.97		55.64		53.32		58.00		76.00		79.97		92.19		92.94		75.30		67.97		50.28	a	43.26		65.74
1959	43.03		41.32		52.55		61.97		64.39		76.87		88.45		81.30	a	70.93		62.52		48.55	a	41.26		61.09
1960	33.39		46.59		52.94		60.23		65.26		78.33		93.16		80.45		77.97		65.61		51.10		36.58		61.80
1961	43.13		51.33	a	53.87	a	58.70		67.26		85.87		90.10		92.90		72.83		62.39		46.60		42.06		63.92
1962	40.33	a	46.75		49.74		63.97		61.26		76.00		85.26		80.19		78.47		62.87		51.83		45.13		61.82
1963	35.13		50.86		55.40	a	57.03		70.42		75.90		81.74		86.97		82.03		68.81		51.87		37.00		62.76
1964	46.55		48.66		49.84		57.53		66.68		74.93		86.23		80.16		73.59	a	64.35		46.30		39.90		61.23
1965	40.13		48.39		51.42		62.93		67.39		76.87		86.55		84.48		71.93		70.68		53.47		44.19		63.20
1966	42.80	a	46.54		54.71		62.33		73.16		74.27		83.13		85.45		79.70		64.45		53.86	a	47.06		63.96
1967	48.00	a	50.21		50.87		54.80		67.29		80.23		89.71		94.16		84.20		66.03		50.17		42.48		64.85
1968	45.32		49.72		58.55		57.30		69.94		77.77		90.77		80.39		75.63		62.13		49.40		40.74		63.14
1969	29.29		42.18		54.32		60.90		72.55		81.50		85.68		84.19		77.60		59.32		53.50		41.06		61.84
1970	42.64	i	47.21		50.97		54.17		69.27	a	82.23		89.35		89.55		70.03		62.00		50.13		43.94		64.44	a
1971	45.32		49.07		48.32		58.63		71.16		69.17		88.77		93.68		71.37		61.94		49.77		43.97		62.60
1972	-----	z	43.24		55.26		57.10		72.16		78.00		85.55		89.29		73.00		63.58		51.21	a	36.03		64.04	a
1973	39.77		47.21		54.10		61.10		73.29		-----	z	89.33	d	84.81		75.43		63.45		46.93		47.74		62.11	a
1974	35.84		49.82		53.26		58.33		64.13		81.60		86.00		86.77		82.10		-----	z	51.37		45.26		63.13	a
1975	40.80	a	42.93		49.58		54.80		67.55		73.67		89.45		80.68		80.73		61.42		50.20		44.65		61.37
1976	45.03		45.14		49.42		59.23		71.68		73.93		86.19		80.52		82.03		67.03		49.77		43.57	a	62.80
1977	31.58		48.18		50.10		66.87		63.35		83.50		84.39		90.35		71.03		63.03		48.67		41.10		61.85
1978	39.74		46.36		56.42		58.50		65.13		80.27		86.10		81.97		71.77		67.55		43.93		37.97		61.31
1979	23.71		44.18		56.10		59.03		70.19		80.43		88.55		87.29		82.18	b	68.43	c	44.63		46.97		62.64
1980	34.94		45.59		50.03		66.31	a	69.00		71.52	a	87.55		83.26		77.10		65.52		50.17		46.94		62.33
1981	41.94		47.00		56.94		59.60		67.10		70.53		85.25	c	93.00		79.60		62.52		54.17		44.52		63.51
1982	41.17	a	45.43		52.97		57.80		69.29		80.48	a	85.94		86.06		75.53		62.35		44.27		41.87		61.93
1983	49.06		51.79		56.19		61.53		72.39		75.67		81.65		89.13		72.34	a	64.81		52.90		31.23		63.22
1984	42.71		45.62		54.50	a	58.63		64.87		72.87		88.84		88.77		73.67		60.61		48.83		35.45		61.28
1985	28.77	a	40.89		53.32		63.97		71.97		79.30		93.81		81.52		67.34	a	60.26		33.90		25.42		58.37
1986	41.48		45.11		57.43	a	59.00		68.52		84.43		80.45		92.29		70.10		67.48		47.97	a	37.48		62.65
1987	38.06		47.71		55.48		67.80		73.26		81.90		83.16		85.13		83.03		70.29		52.90		40.32		64.92
1988	38.68		49.68	a	54.23		62.97		69.45		76.07		86.94		86.48		76.83		72.26		51.73		39.84		63.76
1989	43.45		32.96	a	50.65		64.30		67.45		80.67		86.48		81.61		79.40		63.81		52.53		39.19		61.88
1990	44.74		44.50		55.87		65.70		66.23		75.70		90.58		85.68		84.13		61.06		52.93		35.26		63.53
1991	37.97		54.25		50.39		60.37		63.97		71.50		85.71		89.16		81.10		65.84		47.40		42.55		62.52
1992	44.90		51.00		59.23		64.13		76.10		83.83		82.90		87.00		72.23		65.00		45.43		40.29		64.34
1993	32.29		37.46		51.42		59.33		73.81		73.60		75.74		81.97		78.97		67.61		44.63		41.81		59.89
1994	48.58		42.11		58.87		64.37		71.61		77.27		89.87		86.39		80.93		62.26		46.43		43.94		64.39
1995	41.45		51.00		54.48		59.40		70.03		74.00		85.16		81.39		79.43		59.03		52.83		40.43	a	62.39
1996	41.48		40.78	b	51.32		62.50		63.26		76.33		89.35		86.87		72.70		62.39		47.63		43.28	b	61.49
1997	40.20	a	44.96		53.74		58.60		72.06		75.43		84.00		88.32		78.40		63.19		50.67		40.87		62.54
1998	45.77		51.89		55.16		61.20		66.84		77.77		93.19		89.43	a	82.60		64.42		52.07		43.00	a	65.28
1999	47.81		49.00		54.45		60.23		68.29		77.00		86.23		87.84		78.70		65.35		56.60		44.00		64.63
2000	41.32		47.22	b	54.00	a	66.97	a	70.13		77.37		86.26		82.00		73.50		62.65		42.83		37.03		61.77
2001	38.00		43.64		56.87		58.10		73.39		74.73		85.45		89.97		81.47		63.32		52.93		42.40	a	63.36
2002	44.00		48.96		48.45		61.50		68.74		79.77		90.74		84.03		77.43		61.81		50.33		44.90		63.39
2003	45.23		47.68		55.35		60.67		68.94		82.00		92.58		87.87		79.20		68.68		47.43		42.80	a	64.87
2004	34.10		47.62		60.42		65.83		68.87		79.67		89.71		88.23		73.97		64.65		50.77		44.45		64.02
2005	44.94		51.61		58.94		63.63		71.45		75.33		-----	z	90.72	m	75.11	u	64.00	q	52.40	t	-----	z	60.98	f
2006	53.62	w	-----	z	-----	z	60.35	m	-----	z	79.57	w	96.64	t	89.55	t	77.00	t	63.86	q	51.07	o	40.25	w	-----	z
2007	38.50	a	44.70	a	58.29		56.43	g	65.67	j	66.36	e	81.94	m	70.95	l	60.82	h	50.45	b	36.04	b	31.50	u	49.06	f
2008	-----	z	39.96	a	37.43	c	45.48	e	58.48	b	60.08	f	79.31	o	-----	z	54.71	f	44.91	t	54.47		37.97	a	45.63	f
2009	39.07	b	43.82		47.74		60.10		70.35		76.90		89.20	a	86.06		80.79	a	57.48		51.63		33.74		61.41
2010	45.55		50.54		56.52		59.35	d	64.84		72.60		87.61		85.13		73.63		65.68	c	45.30		42.16		62.41
2011	41.55		42.18		52.06		53.90		63.97		70.32	e	83.16		86.90		81.33	i	61.10		49.53		38.84		58.50	a
2012	43.06		44.10		51.23		63.43		67.45		72.57		86.94		89.29		79.20		62.58		60.04	c	43.17	b	63.59
2013	34.87		46.75		54.77		59.83		71.03		75.60		91.17	a	87.61		77.00		59.77		46.66	a	37.35		61.87
2014	39.97		37.43		55.20	a	61.95	i	71.70	a	77.07	a	91.81		87.55		77.48	a	68.42		47.93		41.81		63.31	a
2015	43.41	b	52.93		59.87		61.97		72.61		86.47		89.48		87.35		73.48	a	67.84		46.40		41.84		65.30
2016	41.26		52.41		55.74		67.37		70.32		79.57		84.35		86.94		72.10		61.68		56.30		34.84		63.57
2017	28.20	a	41.36		53.97		59.83		70.84		76.37		90.81		90.17	a	76.17		59.81		51.36	b	34.52		61.12
2018	44.13		42.11	a	53.45		60.90	a	73.68		75.67		89.77		85.48		73.60		60.65		48.67		42.48	d	62.55
2019	41.10		32.71		42.74		60.13		71.39		77.90		83.58		86.16		72.90		55.52		47.40		41.90		59.45
2020	45.84		48.52		51.29		61.50		69.10		74.30		85.74		87.16		78.23		62.87		50.43		41.61		63.05
2021	44.77		39.32		54.97		63.83		70.29		84.83		91.87		84.90		74.97		61.65		51.60		41.29		63.69
2022	39.00		45.79		54.77		53.73		61.71		73.67		89.42		90.77		78.80		68.00		40.30		33.39		60.78
2023	44.52		43.21		49.90		58.03		74.71		78.77		89.68		84.97		74.27		62.26		45.90		43.26		62.46
2024	36.19		47.17		54.55		59.80	o	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	45.97	i
Period of Record Statistics
MEAN	39.92		44.97		53.21		61.28		69.47		77.05		87.20		85.85		76.09		63.87		49.35		41.15		62.55
S.D.	5.85		4.91		3.79		3.88		3.75		3.87		3.33		3.77		4.06		3.83		4.34		4.32		1.53
SKEW	-0.84		-0.54		-0.51		-0.41		-0.13		0.44		-0.48		-0.06		-0.04		-0.17		-0.43		-0.61		-0.03
MAX	52.10		55.64		61.10		70.07		78.48		89.37		93.81		95.38		84.20		73.29		60.04		49.58		65.95
MIN	23.07		28.55		37.43		45.48		58.48		66.36		75.74		75.17		67.33		50.45		33.90		25.42		58.37
YRS	123		126		126		122		125		126		122		123		121		122		125		123		105