DETROIT DAM, OR

Average of Average Temperature (Degrees Fahrenheit)

(352292)

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
1954	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	48.73	q	38.27		38.27	k
1955	35.73		37.32		38.48		42.00		50.29		58.88	a	60.73		65.47		60.80		52.65		39.04	b	39.03		48.37
1956	37.69		34.62		38.90		48.53		55.35	a	57.07		68.05		64.56		62.22		49.84		43.08		39.32		49.94
1957	31.05		39.30		42.63		48.65		56.18		61.37		64.24		63.35		65.45		51.66		42.52		40.47		50.57
1958	40.02		44.59		42.60		46.93		60.45		63.12		70.45		70.50		61.08		56.03		44.02		43.97		53.65
1959	40.50		39.43	a	43.31		49.60		51.07	a	59.65		67.55		65.74		57.90		54.02		45.03		40.23		51.17
1960	34.69		40.09		43.15		47.50		50.47		62.13		69.53		63.37		61.33	a	54.03		44.05		40.03		50.86
1961	43.06		42.36		42.68		47.30		52.94		65.14	a	67.60		70.55		58.13		51.13		41.90		38.03		51.73
1962	36.13		40.11		40.13		49.87		48.65		59.97		65.95	a	63.82		62.83		53.13		45.73		41.89		50.68
1963	34.29		46.64		43.24		44.10	a	54.84		57.75		61.03		64.89		65.05		53.92		44.78		40.10		50.89
1964	38.40		39.53		41.05		44.85		50.65		57.30		64.63		63.08		58.80		54.52		41.60		38.27		49.39
1965	37.94		40.95		45.87		49.52		51.15		59.03		67.84		66.26		59.73		55.92		46.80		37.34		51.53
1966	37.60		40.04		42.98		50.47		55.53		59.27		63.94		66.50		62.88		53.24		46.17		40.53		51.60
1967	40.77		41.77		41.73		43.60		55.10		62.85		68.60		72.81		66.93		52.73		47.07		37.11		52.59
1968	36.58		46.93	a	46.50		46.28		53.32		60.27		67.10	a	64.31		61.78		51.35		45.27		36.40		51.34
1969	32.23		37.48		44.21		47.42		57.79		62.43		64.90		64.21		61.58		50.37		46.33		42.26		50.93
1970	40.21		44.59		44.39		43.87		54.69		64.35		67.98		67.32		57.50		52.15		45.90		37.47		51.70
1971	36.15	a	39.34		39.35		45.53		53.24		55.98		65.53	a	68.82		58.62		49.69		42.32		37.00		49.30
1972	35.10		40.29		44.02		44.50		55.61		60.08		67.89		68.39		58.33		52.23		45.25		36.62	b	50.69
1973	35.97	a	43.64		42.47		47.97		55.89		59.30		66.18		63.39		61.18		51.10		40.82	b	41.66		50.80
1974	35.18		38.98		42.50		46.47		50.85		60.70		64.24		66.48		66.75		54.95		45.23		41.47		51.15
1975	39.85		39.23		41.02	a	42.95		51.98		57.24	a	64.87		62.33	a	64.66	a	52.22	b	42.08		40.52	a	49.91
1976	39.13		38.57	a	40.18		46.00		53.94		55.98		63.50		62.56		62.30		53.94		48.17		40.66		50.41
1977	37.56		43.56	a	41.18	a	50.52	a	49.19		61.34	a	62.85		69.69		58.08		53.52		42.25		42.50	a	51.02
1978	41.63		43.21		48.34		47.05		51.11		61.30		65.87		64.31		58.07		55.55		39.65		35.39		50.96
1979	32.40		37.36		46.16		46.79	a	55.24		60.52	a	66.32		64.65		64.07		55.84		43.35		43.00	a	51.31
1980	36.84		43.09	a	42.73		49.11	b	51.52	a	55.21	a	65.05	b	62.00	b	59.90		54.76		46.42		41.48	a	50.67
1981	42.68		42.43		45.08		47.29	a	51.55		56.70	b	61.74	b	68.15		61.00	a	50.82	a	45.45		40.23	a	51.09
1982	36.21		38.83	a	43.17	a	45.14	b	53.91	d	60.90	a	62.65	a	64.62	a	59.63		52.28	b	42.12	a	39.65		49.92
1983	41.19		42.95		45.87	a	48.00	a	56.24		56.96	b	59.98	c	65.65	a	59.10	a	53.02	a	45.62		34.60		50.76
1984	39.61	d	41.55	a	46.77	c	45.21	a	51.10	b	56.76	a	65.81		65.68		60.33	a	49.87		42.92		36.37		50.16
1985	37.87		36.76	a	41.53	b	49.90		53.88	a	61.19	a	70.02	a	64.92		57.02		51.19		36.08		35.39		49.65
1986	42.81		41.27		48.21		47.05		53.97		63.57		61.71		69.44		57.69	f	55.40		45.13		40.63		51.74	a
1987	37.32		42.10	b	45.40		52.61	b	56.72	b	62.71	b	63.27		66.56		63.85		58.29	b	46.83	a	38.24		52.83
1988	36.98	a	42.36	a	44.94		49.38		52.85	a	59.46	d	66.68	a	66.89		63.20		59.73		45.43	a	40.25	a	52.35
1989	39.10	a	34.38	c	43.27	e	52.79	a	53.97	b	61.93	a	62.63		62.77		63.38	b	52.10		-----	z	40.52	a	51.53	a
1990	40.64	b	37.00	a	46.44		52.25	b	52.85		59.33		68.66		67.34	b	65.00		51.15		44.73		32.62	b	51.50
1991	36.93	a	46.48	a	43.19		46.70		50.95	a	55.71	a	67.26		67.92		65.68		54.98	b	46.25		41.56		51.97
1992	41.76		46.28		50.47		52.15		60.52		64.46	b	66.55		68.40		61.12	a	54.82		44.70		37.43	a	54.06
1993	34.47	a	38.73	b	45.73		47.50		57.79		57.85		60.42		65.15		64.10		55.88	a	39.48		39.48	a	50.55
1994	41.68		39.23		46.45		50.35		56.23	a	57.83		67.89		65.63		64.32		51.98	a	38.05		38.32	a	51.50
1995	42.31		44.39	a	44.35		47.97		56.40	a	60.18		66.76		64.02	a	64.65		52.77		48.97	a	42.15		52.91
1996	39.84		39.22		45.24		49.20		51.89		60.27		69.05	a	68.63	a	60.52		52.56		44.22	a	39.00		51.64
1997	38.56		41.55		43.90		48.05		59.16	b	59.47		65.60		69.47		63.42		52.29		48.48		39.90		52.49
1998	41.13		42.77		46.03	a	49.27		52.61		60.73		68.89		68.76		66.00		52.56		45.05		36.55		52.53
1999	39.24		39.07		42.27		47.40		51.40	a	58.45		65.13		66.53	a	63.77		54.65	a	47.48		40.80	a	51.35
2000	37.45	a	41.50		43.68		51.88		53.84		62.47	a	64.86	b	66.53	a	62.42		53.02	c	41.62		40.18		51.62
2001	40.40	b	41.34		46.08		47.10	a	57.19		57.72		64.58		66.26		62.83	a	51.68		44.68		38.41	b	51.52
2002	38.21		40.57	a	41.11		48.65		51.97		61.68	b	67.74		66.98	a	63.79	a	52.38	a	45.09	a	41.15	a	51.61
2003	43.35	a	40.89		44.95		46.77	b	54.87	a	63.12	a	69.52		68.87		64.22	a	55.28	a	41.25	b	39.90	a	52.75
2004	36.92		41.93	a	48.10	a	52.58		55.07	b	61.77		69.35		69.16		59.85		53.60	a	44.35		41.48		52.85
2005	39.10		41.86		47.05	a	49.03	a	56.08	a	57.21	a	67.93	a	69.34		59.71	a	53.35	a	42.47	a	37.76		51.74
2006	39.93	b	38.70	a	41.63		49.30	b	56.41	b	62.47	a	68.66		66.53	a	61.28	a	51.73	a	42.71	a	38.05		51.45
2007	35.38	b	39.71		43.40	e	47.55	b	55.05	a	-----	z	65.84	c	64.90	a	59.12		48.32	c	42.59	a	37.23		49.01	a
2008	33.41	d	38.80	a	38.80	c	42.10	a	52.05	b	56.43	a	66.50		66.02	b	61.38	a	51.95	c	46.00	b	36.40	g	50.31	a
2009	37.47	a	37.88	c	39.86	b	46.41	a	54.12	c	61.09	a	69.40		-----	z	63.43		50.16		41.73		33.94		48.68	a
2010	-----	z	42.79		43.48		45.72		49.69		56.80		66.38	a	65.44		59.70		50.90		41.58		38.39		50.99	a
2011	36.21		36.34		39.24		41.83		48.05		56.95		61.76		66.32		64.52		51.53		41.00		36.34		48.34
2012	36.95		39.17		38.29		47.07		52.35		55.08		63.87		66.92		62.95		51.61		43.35		36.74		49.53
2013	33.26		38.18		43.31	e	47.60		54.87	a	60.38		68.58		67.87		59.75		49.31		41.31	a	34.19	b	49.88
2014	38.34		37.02	a	44.63		48.68		56.45		58.82		69.42		71.00		64.28		55.90		44.48		42.52		52.63
2015	42.40		46.16		49.69		48.82		56.84		66.55		70.69		69.77		61.15		57.42		43.57	a	39.90		54.41
2016	39.85		44.17		44.97		54.47		56.87		62.53		65.55		68.76		59.72		51.44		47.93		34.76		52.58
2017	33.50		39.04		42.89		46.68		55.48		61.70		69.19		72.34		67.95	t	51.50	b	46.58	x	39.92		51.22	b
2018	41.72	a	36.11	s	42.44		49.52		59.87	a	61.60		71.44		70.57	b	60.45		53.65		48.15		41.37		54.61	a
2019	42.16		35.63	a	44.08		53.73		58.10		62.18		65.22	a	68.18		59.92		48.84	b	44.97		40.58		51.97
2020	39.00		40.84		42.97		50.12		56.87		61.48	a	69.21		69.11		64.75		54.65		43.28		41.53	a	52.82
2021	40.82		38.45		43.19		50.32		54.80	a	66.33		70.15		69.10		61.65		50.74		46.05		38.29		52.49
2022	37.77		39.41		44.95		43.07		49.63		59.43		69.16		71.03		66.05		57.58		41.00		36.23		51.28
2023	39.18		36.71		38.35		44.47		58.19		61.98		69.82		70.92		61.15		53.73		45.40		43.23		51.93
2024	37.79		41.34		43.08		47.33	l	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	40.74	i
Period of Record Statistics
MEAN	38.23		40.56		43.55		47.81		54.14		60.12		66.35		66.88		61.88		53.00		43.98		39.08		51.34
S.D.	2.88		2.88		2.68		2.81		2.89		2.68		2.78		2.58		2.51		2.27		2.60		2.47		1.24
SKEW	-0.30		0.25		0.11		0.02		0.07		0.12		-0.41		0.15		0.06		0.50		-0.49		-0.40		-0.05
MAX	43.35		46.93		50.47		54.47		60.52		66.55		71.44		72.81		66.93		59.73		48.97		43.97		54.41
MIN	31.05		34.38		38.29		41.83		48.05		55.08		59.98		62.00		57.02		48.32		36.08		32.62		48.34
YRS	69		69		70		69		69		68		69		68		67		69		67		69		61