DAYTON 1 WSW, WA

Average of Average 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	44.75		54.34		58.93		67.37	e	-----	z	59.72		49.47		39.23		39.48	b	51.66	d
1894	33.40		32.14		42.47		-----	z	-----	z	61.88		73.06		73.37		59.25		-----	z	-----	z	-----	z	53.65	e
1895	-----	z	-----	z	-----	z	53.27		-----	z	-----	z	-----	z	69.35		54.75		51.31		38.72		-----	z	53.48	g
1896	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	33.95		39.73		36.84	j
1897	31.24	b	38.04		37.94		51.88	b	62.08		62.48		-----	z	72.89		60.03		51.27		39.27	d	34.31		49.22	a
1898	31.02		43.73		39.77		52.22		55.63		63.03		-----	z	-----	z	61.10		49.81		38.03		26.21		46.06	b
1899	34.81		28.96	b	40.41	b	45.45	s	51.89		59.10		69.12	a	61.98	a	62.27		46.84		47.28		37.18		49.08	a
1900	39.63		32.95		47.65	a	51.42		58.45		66.63		68.16		70.24	b	57.40	y	51.39		40.07	b	39.15		51.43	a
1901	30.85	a	33.06	a	45.09	c	46.24	a	57.48	b	58.15		68.42		72.44	e	-----	z	-----	z	-----	z	-----	z	51.47	d
1902	31.61		39.27		-----	z	48.53		53.77		62.34	b	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	47.11	g
1903	-----	z	-----	z	42.29		47.30		55.65		67.65		66.27		66.55		59.40		53.42		42.37		33.95		53.48	b
1904	37.53	b	38.31		40.11		53.67		-----	z	62.30		68.81		71.94		64.68		54.66		47.10	a	37.25	a	52.40	a
1905	34.15	a	30.96	d	46.55		52.22		53.90		62.12		72.18		68.63		62.12		47.00	a	41.30		34.73	a	50.49
1906	37.95		38.20		40.34		54.13		55.71		60.75		76.89		69.16		-----	z	-----	z	-----	z	-----	z	54.14	d
1907	-----	z	-----	z	-----	z	-----	z	58.06		60.53		68.47	b	64.02	a	59.36	a	55.60	b	44.00	a	38.14	b	56.02	d
1908	35.92	a	37.67	e	43.44	e	49.54	g	54.36	b	60.74	e	73.07	d	69.98	f	62.90		51.05		45.35		33.71		49.82	b
1909	25.98		40.43		44.84		46.92		54.50		63.23		66.90		67.82		62.37		52.03	a	43.47		27.73		49.68
1910	30.28	a	29.00		49.70	a	-----	z	60.18		62.60		70.58		69.00		62.13		56.71	b	42.43		36.48		51.74	a
1911	34.71		30.64		46.00		48.47		53.58		62.86	b	71.43	a	66.79		57.22		50.79		39.48		35.61		49.80
1912	33.00		38.60		39.65		49.05		57.31		63.62		67.95		65.35		58.07		47.79		44.20		36.50		50.09
1913	30.58		28.54		39.56		50.40		57.68		62.73		68.84		71.03		61.73		48.10		43.88		30.87		49.50
1914	42.52		35.04	a	46.13		50.40		57.87		60.92		73.48		70.40		58.92		51.35		42.28		26.48		51.32
1915	30.42		41.79		47.56		54.12	b	57.29		63.78		67.21	x	75.16		59.47		51.65	u	40.17	a	37.23		50.70	b
1916	17.82		31.97		44.92		50.95	a	53.76	b	63.25		69.00		71.68		62.35		51.03	a	35.33		30.02	a	48.51
1917	32.52		34.98		37.15		47.20		56.52		62.63		73.82		75.05		65.06	f	54.97		46.08		43.74		51.33	a
1918	38.27		36.45		46.45		50.93		52.55		70.10		72.26		68.20	a	67.28	a	56.75	a	40.28		35.38	a	52.91
1919	36.60		36.02		45.26		52.85		57.00		62.13		73.31		72.87		61.54	b	47.16		38.02		22.83	a	50.47
1920	31.08	a	36.62		41.92		46.78		54.18		62.62		73.95		71.65	a	61.15		51.52		40.86	a	38.13		50.87
1921	36.11		39.77		45.82	a	49.15		58.31		67.43		70.00		70.68		57.00		55.42	a	42.60		30.37	a	51.89
1922	24.25	a	31.67	a	41.27		46.82		56.97		71.83		75.63	a	69.45		65.50	a	53.62	a	35.12	a	30.13	a	50.19
1923	37.95		27.61		43.58	a	51.05		56.44		60.59	a	70.68	a	68.41	b	62.17		49.18	c	40.81	a	34.07	c	50.21
1924	27.21	b	43.97		40.87		48.66	a	63.29	b	64.97	a	67.89	c	66.30	a	60.91	b	51.48	a	38.00		25.83	a	49.95
1925	39.90	b	43.70		44.29	b	53.17	a	59.40		65.78		74.02	a	67.66		60.18		49.58		40.02	a	38.37		53.01
1926	33.63		44.18		46.65		55.86	a	57.34		67.77	b	72.62	a	70.16		55.23		52.92		42.67	a	34.67	a	52.81
1927	29.48		39.82		42.05	a	48.53		52.50		64.27		70.37		69.21		57.17		52.06		44.83		28.42		49.89
1928	31.40	a	35.34		45.44		47.67		62.08		63.75		71.88	b	67.85		60.93		51.55	a	41.30		31.95	a	50.93
1929	20.66		23.15	b	44.83	a	46.47	a	58.92	a	66.03	o	68.63	a	71.69		59.56	c	52.63		38.95	b	39.26		47.70	a
1930	11.85	a	42.87	a	44.52		55.10		54.69		61.81	a	70.58		71.82		62.26	a	46.63		38.09	a	30.74		49.25
1931	36.57	c	36.59		43.85	a	49.00		59.68		64.17	a	71.29		69.92		59.57	a	50.08		35.53	a	31.83	a	50.67
1932	31.95		33.09	b	42.23		50.48		55.87		64.79	a	67.68		67.79		61.85		52.10		45.40		29.03		50.19
1933	34.95	a	29.16		43.79		49.13		52.21		62.92		70.42		70.10		58.20		55.72	a	41.43	a	42.02		50.84
1934	42.37	a	41.77		49.74		57.67		60.77	a	65.13		70.39		71.69		59.73		53.45		44.93	a	35.42		54.42
1935	35.02		37.96		40.15		46.83		56.91	c	64.37		69.84		68.92	a	65.40		53.55	a	35.78	a	32.17	b	50.57
1936	35.60	b	20.98	a	42.84		54.65		62.77		66.32		70.95		70.16		60.88	a	54.23		35.63		38.50		51.13
1937	15.50		34.61	a	46.00		48.22		58.34		64.98		73.15		66.85		63.58		55.31		45.03		37.24		50.73
1938	34.42		36.50		43.52		50.92		56.90		66.25		73.16		67.09	b	67.25		53.19		37.45		36.11		51.90
1939	38.87		34.09		44.95		52.43	a	58.60	a	60.77	b	71.66		71.18		63.48		52.79		44.64	a	41.06		52.88
1940	32.98		40.95		47.74		50.98		61.08		67.84	a	70.79		70.05	b	64.64	a	54.92		34.83		35.77	a	52.72
1941	34.24		40.68		47.82		53.02		55.97		61.62		73.60		69.68		57.95		48.85		44.37		37.85		52.14
1942	21.44		35.56	a	43.84		52.33	a	54.47	a	60.60		71.86	b	72.53		64.21	a	53.68	a	39.65		37.92		50.67
1943	26.12	b	37.09		40.56		53.05		53.53		60.45		71.24		67.94		65.02		52.89		39.14	b	32.45		49.96
1944	32.90		35.69		41.08		50.83		57.87		63.22		71.34	b	69.50		65.47	a	56.44		39.09	b	30.15	a	51.13
1945	36.48		39.22	a	41.06		47.33		57.92		61.89	b	72.29		71.52	a	59.42		54.13		41.15	c	33.06		51.29
1946	36.58	a	39.95		43.58		51.68		57.50	a	61.73		70.24		70.16		60.43		47.27		39.31	a	36.90		51.28
1947	30.19	b	39.43		47.47		51.78		62.75	a	62.10	a	69.76		67.74		63.21	a	53.73		39.85		37.31		52.11
1948	33.76		34.57		39.82		47.13		54.37		66.52		66.89		66.27		60.42		49.58		40.97		29.15		49.12
1949	16.50		33.32		42.74		53.15		61.06		61.67		68.65		68.08		62.60		46.58	a	45.03		35.31		49.56
1950	16.20	a	34.86		41.21		46.98		54.77		62.32		70.34		70.79		62.98		52.06		41.30		38.47		49.36
1951	32.69		36.00		38.95		48.73		56.87		60.75		70.34		68.10		61.18		48.84		39.70		30.23		49.37
1952	29.18		38.28		41.79		52.85		57.65		61.92		69.84		68.77		63.80		54.85		33.60		36.02		50.71
1953	45.31		39.59		44.34		47.48		54.00		58.20		68.71		68.52		63.15		52.15		44.15		38.71		52.02
1954	32.60	a	38.18		39.24		47.48		56.66		58.98		67.82	a	64.30	a	59.22		48.11		45.50		34.29		49.37
1955	32.34		34.28	a	36.89		44.70		52.53		63.67		67.23		67.05		60.02		51.81		33.50		31.97		48.00
1956	34.16		27.53		42.55		51.84	a	58.82		61.02		70.90		67.90	a	60.88		49.52		36.12		36.93	b	49.85
1957	18.94		35.34		42.84		50.45		59.23		63.90		67.60		64.90		62.35		48.02		40.08		39.94		49.46
1958	37.39		47.02		42.44		48.55		62.82		67.37		75.21		74.98		61.33	a	52.89		41.71	a	37.40		54.09
1959	35.26		35.61		43.61		50.42		53.05		63.47		71.69		66.60	a	59.45		51.00		38.03	a	33.90		50.17
1960	24.53		37.47		43.02		49.55	a	53.66		63.17		75.03		66.52		61.22	a	52.85		41.68		30.63		49.94
1961	35.71		44.11	a	45.23	a	48.58		56.21		69.57		73.87	a	75.11		57.93		50.03		36.17		34.72	a	52.27
1962	32.00	a	37.68		40.28	a	51.43		51.68		61.27		68.27		66.31		62.17		50.97		43.22		37.87		50.26
1963	26.37	a	41.48		45.02	a	47.22		57.03		62.97		67.08		70.35		66.62		55.26		43.55		32.10		51.25
1964	39.27	a	38.50		40.84		46.65		54.27		62.38		70.48		65.45		58.71	a	50.85		39.07		31.97		49.87
1965	34.65		40.34		40.16		51.80		55.13		63.08		71.42		70.61		57.95		55.52	b	44.53		35.48		51.72
1966	36.70	a	38.39		44.13		49.83		58.82		60.90		68.60		69.73		65.07		51.65		44.31	a	39.98		52.34
1967	41.17	a	40.82		42.05		44.70		55.34		66.30		73.27		75.11		68.10		53.44		40.92		34.98		53.02
1968	36.37		41.53		47.56		46.28		56.95		64.02	a	73.85		67.00		62.83		49.50		41.50		32.73		51.68
1969	22.19		34.86		43.40		49.73		59.61		67.83		69.53		68.02		63.63		47.98		42.67		35.68		50.43
1970	36.36	i	39.80	a	41.77		44.42		56.67	a	68.00		73.71		71.66		57.10		49.28	a	41.32		36.23	a	52.72	a
1971	38.21		39.23		38.98		46.82		57.56		57.63		70.32	a	74.80	a	57.15		47.69		40.87		35.23		50.37
1972	-----	z	34.68	a	45.61		46.22		58.55		64.47		69.92		73.18		59.58		50.39		42.40	a	28.10		52.10	a
1973	30.92		38.05		44.45		48.77		59.10		-----	z	72.20	d	68.97		61.77		51.47		39.82		40.16		50.52	a
1974	27.58		41.30		43.44		48.97		53.18	a	66.50		70.45		71.31		64.60		-----	z	43.25		38.08		51.70	a
1975	33.92	a	34.88		40.03		44.58		55.27		61.03		74.15		66.47		63.37		51.81		40.48		37.35		50.28
1976	37.26		37.09		40.40		48.43		57.16		60.62		70.34		67.10		65.53		51.79		41.48		34.83	a	51.00
1977	26.18		39.52		41.89		52.60		52.98	a	68.35		69.53	a	73.95		58.78		50.18		39.40		35.39		50.73
1978	33.22	a	39.39		45.37		48.65		54.10		65.37		70.55		68.50		59.67		51.71		34.40		29.32	a	50.02
1979	16.34		36.07		45.44		49.02		57.97		65.92		72.19		71.40		65.39	b	55.04	c	36.77		39.00		50.88
1980	27.32		37.38		41.58		53.52	a	56.23	a	59.48	a	71.44		67.29	c	62.32		51.05		41.55	b	38.68		50.65
1981	36.58		39.14		45.27		49.12		55.98		59.15		69.23	c	73.97		63.17		50.08		43.97		36.74		51.87
1982	33.73	a	36.95		43.29		46.20		56.31		66.41	a	70.37		70.65		61.08		49.68		36.68		35.32		50.56
1983	40.21		42.91		46.18		48.95		58.48		62.48		67.53		73.18		57.95	a	51.27	a	44.88		23.98		51.50
1984	33.82		37.68	a	45.03	b	47.77		53.42		60.27		71.26		71.84		59.27		47.56		41.23		28.19		49.78
1985	24.95	a	31.41		41.65		51.67		58.26		63.90		75.95		66.82		55.50	a	48.73		27.50		19.47		47.15
1986	34.61		37.91		47.73	a	48.47		57.06		68.78		66.65	a	74.71		57.28		53.18		41.28	a	31.87		51.63
1987	29.70	a	38.96	a	46.18		54.78		60.11		66.82		69.21		68.61		65.48		53.18		43.08		33.15		52.44
1988	32.18		39.09	b	43.39		51.50		56.79		63.42		70.69		69.92		61.65		57.16		44.02		33.24		51.92
1989	36.13		24.48	b	42.29		52.82		56.12	a	66.52		70.19		68.34		63.05		51.05		44.35		33.79		50.76
1990	38.92		35.71		44.76		53.75		55.35		63.32		73.65		71.11		66.95		50.19		44.58		25.77		52.01
1991	30.98		43.78	c	41.05	b	49.03		53.55	a	59.77		70.18		73.00		64.67	a	51.17	b	40.70	c	36.87	a	51.23
1992	37.91	c	42.81	b	47.60		53.33	a	61.39		69.12		69.60		70.79		59.17	a	52.27	c	39.33	a	32.82	c	53.01
1993	24.62	e	29.30	c	42.34	b	50.13		61.45	a	62.88	a	64.35	a	67.42		62.87		54.22	a	32.83	d	36.27	a	49.06
1994	40.93	b	34.36	f	46.52		53.17		59.32		63.58		73.13		70.55	a	65.05	a	50.09	c	39.11	c	36.83	b	54.39	a
1995	34.00	e	41.91	a	44.37		48.72	a	57.82		61.93		70.97		66.44		64.93	a	48.71	b	44.84	b	34.81	d	51.62
1996	33.35	d	31.72	f	42.12	a	51.71	a	53.24		63.12		73.32		70.82		59.57		51.33	a	39.78		36.03	b	52.22	a
1997	33.05	a	38.48		44.83	a	48.10	a	60.35		63.33		69.58		72.69		64.45		51.32	c	42.98	a	34.25	a	51.95
1998	37.55	b	42.91		45.18		49.97		56.00		65.12		76.53		72.57	a	67.50		51.08		44.18	b	34.88	b	53.62
1999	40.39		40.61		44.26		48.38		54.74		63.43		69.32		72.87		61.37		51.16		46.65		38.39		52.63
2000	35.32		39.52	c	44.12	a	54.00	a	58.58		64.41	a	70.61		65.85		60.60		50.57	a	34.62		31.23		50.79
2001	32.65		35.68		45.95	a	48.17		59.34		62.38		70.45		73.05		65.75		51.08		43.25		35.43	a	51.93
2002	36.68		38.98		40.27		50.12		56.06		66.10		74.16		68.69		62.12		47.98		40.79	a	38.60		51.71
2003	39.74		38.62		47.21		49.83		57.23		66.75		75.00		71.85		64.70		55.61		37.58		35.12	a	53.27
2004	28.23		39.38		48.53		52.40		57.79		65.60		73.03		73.03		61.05		53.13	a	42.07	a	36.88	a	52.59
2005	35.92	a	38.32		47.40		51.30		59.97		62.35		-----	z	73.14	m	61.67	u	52.39	q	41.75	t	-----	z	49.21	f
2006	43.69	w	-----	z	-----	z	49.56	m	-----	z	65.57	w	78.59	t	71.95	t	61.40	t	51.39	q	42.87	o	33.62	w	-----	z
2007	31.26	b	37.79	b	47.15		41.67	g	48.20	k	49.56	e	58.64	t	54.13	p	44.95	h	37.60	b	27.50	b	26.30	u	38.48	f
2008	-----	z	31.88	a	29.41	c	34.12	e	45.66	b	45.94	f	66.56	w	-----	z	41.52	f	35.50	w	44.05		28.97	a	35.68	f
2009	31.69	b	35.12		38.32		48.22		56.92		63.43		72.72	a	70.90		63.57	a	46.40		41.40		26.95		49.64
2010	38.40		40.98		44.26		48.54	d	53.16		61.07		70.66		69.08		60.85		53.34	c	36.79	a	34.95		51.01
2011	34.03		33.55		42.85		44.28	a	52.44		58.86	e	67.29		70.47		65.33	i	51.24		39.68		31.16		47.81	a
2012	33.63		36.14		41.45		50.70		55.13		60.28		71.19		71.39		62.08		49.66		48.31	c	36.86	b	51.40
2013	29.29		38.29		43.87		48.53		57.52		63.20		73.18	a	71.61		64.53		47.23		38.43	a	28.84		50.38
2014	33.53		31.11		44.37	a	49.88	i	58.22	a	63.45	a	75.31		72.61		62.95	a	56.55		38.48		35.11		51.97	a
2015	36.12	b	43.20		47.84		49.45		59.37		71.13		73.81		71.61		60.17	a	54.50		37.87		35.84		53.41
2016	34.52		42.67		46.02		54.70		58.32		65.15		69.44		70.19		59.40		51.68		46.60		27.84		52.21
2017	21.68	a	33.41		45.34		49.50		58.11		63.78		73.40		73.58	a	62.58		48.23		42.07	b	29.29		50.08
2018	37.84		35.41	a	42.39		49.38	a	61.79		63.15		72.61		70.50		59.15		48.90		39.67		35.65	d	51.37
2019	34.61		26.25		34.21		50.10		58.42		64.47		68.94		71.08		61.10		44.39		37.98		34.74		48.86
2020	38.44		38.82	a	41.10		49.43		57.06		62.75		70.00		71.84		63.77		51.18		40.52		34.70	a	51.63
2021	37.56		33.52		43.18		50.32		57.55		70.88		75.84		71.37		61.60		50.31		43.45		34.74		52.53
2022	31.94		35.59		45.13		43.88		52.05		62.20		73.32		74.68		63.93		55.21		32.73		27.39		49.84
2023	35.95		34.80		40.55		47.22		62.08		64.77		73.35		71.31		61.95		51.21		38.75		37.15		51.59
2024	29.27		39.19		43.85		49.03	o	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	37.44	i
Period of Record Statistics
MEAN	32.57		36.84		43.34		49.72		56.84		63.46		71.01		69.98		61.66		51.33		40.58		34.18		51.01
S.D.	6.13		4.60		3.09		3.10		2.89		3.11		2.46		2.71		2.78		2.93		3.76		4.22		1.34
SKEW	-1.10		-0.79		-0.86		-0.86		-0.23		-0.22		0.08		-0.18		-0.01		-0.77		-0.75		-0.74		0.05
MAX	45.31		47.02		49.74		57.67		63.29		71.83		76.89		75.16		68.10		57.16		48.31		43.74		54.42
MIN	11.85		20.98		29.41		34.12		45.66		49.56		64.35		61.98		54.75		37.60		27.50		19.47		47.15
YRS	123		124		126		122		125		125		121		122		120		121		125		123		100