FOSTER DAM, OR

Average of Average Temperature (Degrees Fahrenheit)

(353047)

File last updated on April 18, 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
1969	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	44.62	d	44.32		44.47	j
1970	42.68		46.48		46.81		46.03		55.24		63.48		66.00		64.11		57.63		51.45		46.57		40.34		52.24
1971	39.02	d	42.34		42.71		48.07		55.10		57.43		65.32	a	67.66		58.62		50.42		44.80		39.68	a	50.93
1972	38.33	a	42.91		47.70	a	46.50		56.18		60.03		67.44		67.10		58.07		51.53		47.43		36.69		51.66
1973	39.12	a	46.11		45.15	a	50.52		55.98		60.48		65.76		61.79		60.32		52.38	a	44.22		44.34		52.18
1974	36.79		41.34		45.58		48.62		52.42		60.55		64.37	a	65.11		63.65		53.15		47.20		44.47		51.94
1975	42.73		42.43		43.56		44.60		54.34		58.45		65.23		61.85		61.80		53.55		44.82		42.66		51.33
1976	41.50		41.31		43.18		47.40		54.50	a	56.17		63.87		63.47		61.98	a	53.05		47.38		39.68		51.12
1977	38.39		45.46		44.05		51.47		51.37		61.22		63.13		69.02		58.95		53.32		45.84	b	44.60		52.23
1978	44.15		46.14		50.07	a	48.95		52.98		62.45		65.55		64.95		59.30		53.37		40.70		37.05	a	52.14
1979	31.65		41.84		48.68		49.63		55.95		61.03		65.68		64.00		62.73		56.24		43.23		44.65		52.11
1980	37.29		45.16		45.35		51.85		53.66		57.52		64.69		62.08		60.50		54.40		48.28		44.61		52.12
1981	42.56		44.61		47.82		50.47		55.05		58.93		64.11		68.13		61.73		51.37		47.47		43.31		52.96
1982	38.61		42.30	a	45.27		48.02	a	53.87		62.02		63.35		64.73		59.40		53.39		43.43		40.82		51.27
1983	43.97		46.21		48.66		50.30		56.77		58.55		62.60		65.31		58.38		52.63		48.50		37.69		52.46
1984	40.89		44.81		49.06		48.50		53.29		57.78	a	64.53		65.18		60.32		50.84		45.36	a	37.95		51.54
1985	36.45	c	39.94	a	43.50		51.70		55.41	b	61.27		68.81		63.80	a	56.83		52.00		37.93		35.48		50.26
1986	44.42	a	44.67	a	50.58		48.87		55.56		64.15		62.17	b	68.90		57.82		54.77		47.03		41.34		53.36
1987	40.85		45.41	a	47.76		53.62		57.62	a	62.82		64.23		65.15		61.70		55.63		47.12		40.18		53.51
1988	40.35		44.33		46.92		51.20		54.18	a	60.58		66.02		64.77		60.88		56.95		46.65		40.79		52.80
1989	41.18		35.68		46.44		54.48		55.50		62.43		63.02		63.63	a	62.84	a	52.65	a	46.70		40.13	a	52.06
1990	42.32		39.57		48.37		53.10		54.44		61.08		68.23	a	66.84	b	63.48		52.68	a	46.84	a	34.47	a	52.62
1991	38.39		47.96		44.40		48.87		52.83	a	56.81	a	66.63		66.87		63.42		53.63		47.10		41.77		52.39
1992	42.77	a	48.26		51.00		54.81	a	59.90		65.20		67.08		66.27		60.67	a	54.97		45.74	a	40.02	a	54.72
1993	36.88	a	40.44	a	48.31	b	50.34	b	58.63		59.83		61.76		64.82		62.11	b	56.13	a	39.72	a	39.66		51.55
1994	42.98		41.41		48.50	b	52.35	d	56.81		58.60		66.28	a	65.08	a	63.37		52.65		40.63	c	42.24		52.57
1995	43.58	a	46.80		46.76	b	49.40		56.32		60.45		67.16		63.63	a	64.07		52.45	a	49.98		43.05	a	53.64
1996	42.55		42.13	b	47.78	a	52.00	a	53.40		59.72		68.55		66.47		59.00	b	52.77		46.23		42.66		52.77
1997	41.58		43.18		46.32	a	50.52		60.48		59.98		65.25	a	68.00		63.12	a	51.92		49.71	a	39.44		53.29
1998	45.02	a	46.80		47.56		50.22		53.70	a	59.86	a	68.69	b	66.42	a	63.55		52.77		47.52		39.26		53.45
1999	42.03	a	43.11	a	44.07	a	49.05	a	52.40	a	59.41	a	64.10		66.42	a	61.40		52.87		49.83		41.74		52.20
2000	39.74		43.86		44.47	a	52.42		55.53		62.34	a	64.10		64.28	a	61.15		53.31	b	42.13		41.63		52.08
2001	41.72	a	42.17	a	46.60	b	48.08		56.78	b	57.81	a	64.53	b	66.37	a	62.13	d	52.55	c	47.73	b	42.10	b	52.38
2002	41.11		44.00	a	42.66	c	49.54	b	52.55		60.10	e	66.73	c	64.75	a	61.52		51.02		46.61	b	43.98	b	52.05
2003	45.70	a	43.11		48.55	c	48.24	a	54.72	a	62.41	b	68.57	b	67.50	b	63.12		56.84		43.50	b	42.57	b	53.74
2004	40.93	c	44.03		49.26	b	51.96	d	56.50		61.12	b	68.24	d	68.83	a	59.38		53.32		43.79	b	41.87		53.27
2005	41.95	a	41.61	a	49.83	b	49.79	a	57.03	b	57.95		66.25	a	67.34		59.17	a	54.31		43.37		40.20	a	52.40
2006	43.22	b	41.56	d	43.95	b	50.05		55.39	c	61.34	b	67.44	e	64.62	a	61.41	b	51.27		44.64	a	39.52		52.03
2007	36.50	a	42.38		47.18	a	48.97		53.71	e	59.15	c	67.55		64.92		58.93		50.45	a	42.28	a	39.63		50.97
2008	35.70	a	41.59	a	42.73	c	44.54	e	54.07	d	56.50	b	65.47	b	-----	z	59.67	d	52.02	d	46.88	d	38.52	d	48.88	a
2009	38.18	c	41.06	c	42.86	f	48.31	d	-----	z	61.48	c	68.81		66.15		63.32	e	51.60		45.27		35.94		52.01	b
2010	46.48	f	46.13	a	46.32		48.77	b	52.77		58.88		66.35	e	66.56		61.65		54.73		45.55	a	43.87		53.78	a
2011	42.06		41.25		46.03		46.34	a	52.18		59.72		63.05		65.89		65.00		54.02		44.22		37.42		51.43
2012	41.31		43.03		42.65		51.08		53.90		58.13		64.58		67.06		62.41	a	53.58		48.42		42.24		52.37
2013	37.23		42.32		48.85		52.73		57.27		63.33		68.85		69.90	a	63.58		52.03		45.60		35.69		53.12
2014	39.48		42.00		49.08	a	51.58		59.08		60.57	a	69.55	a	69.67	a	64.90		59.00		46.37		44.61		54.66
2015	42.82		47.59		52.15		50.25		57.62	a	66.92		70.58		68.69		60.42		58.08		43.53		43.31		55.16
2016	43.13		47.03		48.31		55.05		57.45		63.47		64.90		68.06		60.12		54.38	a	51.47		37.89		54.27
2017	37.34		42.73		47.52		49.75		57.90		62.77		67.31		70.47		65.02		52.91	b	48.16	a	38.89		53.40
2018	43.97		41.65	a	44.90		51.23		58.23		61.88		68.82		68.68		61.43		54.66		45.18		42.69		53.61
2019	41.85		37.65	b	43.79		50.85		56.55		61.73		65.60		68.32		61.52		49.10		44.40		41.85		51.93
2020	43.82		41.74		44.42		51.82		56.98		60.13		66.21		67.52		64.10		54.05		44.63		41.68		53.09
2021	43.52		42.00		43.92	a	50.73		55.68		66.47		69.11		68.98		62.92		52.73		48.53		41.06		53.80
2022	40.82		40.96		47.21		46.08		52.21		60.65		68.69		69.39		64.62		57.68		40.98		39.44		52.39
2023	41.65		39.57		41.18		47.47		58.84		61.76	a	68.29		69.97		61.42		54.37	a	45.35		43.97	a	52.82
2024	41.11		45.02		46.34		48.14	l	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	44.16	i
Period of Record Statistics
MEAN	40.81		43.19		46.48		49.95		55.41		60.65		66.10		66.33		61.42		53.41		45.59		40.83		52.56
S.D.	2.79		2.58		2.48		2.37		2.15		2.34		2.13		2.18		2.08		2.00		2.68		2.65		1.02
SKEW	-0.80		-0.16		-0.01		-0.09		0.25		0.43		-0.01		-0.09		-0.19		0.70		-0.51		-0.43		0.37
MAX	45.70		48.26		52.15		55.05		60.48		66.92		70.58		70.47		65.02		59.00		51.47		44.65		55.16
MIN	31.65		35.68		41.18		44.54		51.37		56.17		61.76		61.79		56.83		49.10		37.93		34.47		50.26
YRS	54		55		54		54		53		54		54		53		54		54		55		55		51