SISTERS, OR

Average of Average Temperature (Degrees Fahrenheit)

(357857)

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
1958	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	65.05	u	54.38		47.76		38.87		37.95		44.74	h
1959	33.68		32.83	a	38.63		43.70		45.78	a	56.73		63.74		58.90	a	53.02	a	47.45		38.37		31.38	a	45.35
1960	26.00		31.28	b	38.74		43.32		46.90		57.30		65.95	a	59.06		56.00		47.45		35.40		31.11		44.88
1961	34.48		39.35	a	38.28	f	43.64	a	48.15		60.83		63.26		66.19	b	50.46	d	45.62	a	34.23		31.50	c	47.06	a
1962	28.66		33.36		36.61		46.32		46.15		55.08		60.63		59.35		56.88		46.03		40.05		35.29		45.37
1963	27.29		41.39		36.72	b	40.23		50.16		54.45		58.03		61.55		60.88		47.66		38.97	a	32.32		45.81
1964	33.23		36.24	f	36.76		40.45		46.76		54.40		61.38	c	58.47	a	51.45		46.55		33.95	b	29.90		44.84	a
1965	32.87		37.61		36.43	a	43.57		46.03		55.03		62.66		61.26		50.33		50.39		39.60		30.23		45.50
1966	33.40		33.77		38.79		43.77		50.92		54.66	a	60.08		60.89		57.20	c	47.95		39.30		34.06		46.23
1967	36.18		37.86		36.42		37.80		49.61		57.60		63.95		67.21		60.45		48.44		38.60		29.92		47.00
1968	31.34		37.97		41.32		41.13		49.47	a	58.00		64.45		59.94		55.60		45.29		36.68		31.82	i	47.38	a
1969	25.35		29.48		37.94		42.78		54.05		59.75		61.06		59.40		-----	z	42.82		38.10		32.08		43.89	a
1970	32.05		36.36		38.29		39.47		50.13		60.78		64.95		62.77		51.58		44.00		37.17		30.37		45.66
1971	34.52		34.54	b	34.47		41.83		51.05		53.93		64.68		66.16		51.52		43.94		38.00		30.52		45.43
1972	30.23		35.93		42.44		40.05		52.18		58.25		64.47		63.50		-----	z	44.24		38.17		23.92		44.85	a
1973	27.27		34.56	a	37.98	b	43.93		52.35		57.52		63.60	a	60.31		55.52		46.45		35.28	a	36.35		45.93
1974	25.27		34.70	a	38.16		42.75		47.32		61.50		61.74		62.50		57.00	a	45.63		40.40		32.90		45.82
1975	33.10		31.72	a	34.73		38.72		47.79	g	53.76	a	65.18		58.39		54.93		46.27		34.73		34.77		44.21	a
1976	33.37		33.66		37.66		41.75		50.87		53.00		63.76		59.21		56.18		46.34		39.65		30.68		45.51
1977	26.85		38.69	d	38.13		46.53		46.02		61.35		61.71	b	67.42		52.30		45.39	d	36.71	a	33.63		46.23
1978	32.72	b	35.26	a	41.59	b	38.72	a	47.08		58.52		63.67	b	60.47		53.42		47.37	d	26.58	e	28.32	i	45.95	a
1979	-----	z	33.93	f	39.03	a	41.83		-----	z	57.29	d	63.48		60.52	a	58.05	b	52.61	i	32.88	f	35.54	c	50.82	e
1980	25.25	i	-----	z	-----	z	-----	z	-----	z	54.08	k	62.73	a	59.09	b	56.91	g	47.56	m	39.47	n	35.26	n	60.91	j
1981	32.21	n	33.80	m	39.69	m	45.36	l	49.21	e	56.27	f	59.10	g	64.84	f	51.67	l	43.90	j	37.72	l	32.85	k	49.21	k
1982	25.79	n	28.40	m	36.96	h	38.82	h	46.24	j	57.53		60.63	a	61.85		54.19	a	43.80	d	33.00	f	29.73	c	51.29	f
1983	34.48	c	36.50	f	41.85	a	40.72	e	50.56	m	53.33	g	59.55	a	64.73	a	51.71	a	47.79	e	39.25	f	23.47	n	48.69	e
1984	26.71	n	30.40	n	37.77	g	38.30	g	45.32	c	50.55	i	64.00	e	62.57	i	52.74	c	42.79	e	35.48	a	27.50	c	44.64	f
1985	27.34	b	30.97	j	37.89		45.76	a	49.32	c	58.27	b	67.69		59.87		49.52	a	44.91	h	27.13	g	20.45		46.23	c
1986	33.43	c	35.65	b	43.02	c	41.62		49.22	b	61.77		58.90	a	65.87		50.60	a	46.77	a	38.91	g	28.67	j	48.68	b
1987	29.31	m	32.92	j	40.45	j	51.48	j	-----	z	59.32	e	59.70	h	60.89	i	57.57	g	48.13	l	38.00	n	29.80	k	59.32	k
1988	28.89	m	34.69	m	38.33	h	45.42	k	48.79	l	56.29	i	63.62	k	62.17	h	54.88	j	52.06	m	38.65	f	30.36	f	-----	z
1989	32.00	b	22.60	b	38.66	f	47.48		49.37		57.78		61.08		59.65	a	55.38	a	46.04	c	37.91	b	31.10	e	45.49	a
1990	34.08	g	32.40	c	39.67	b	48.68		48.73		57.10	a	65.44		64.13		59.05		45.56	d	38.26	e	23.83	g	49.90	b
1991	29.00	b	38.96	c	36.72	b	42.22	a	47.23		53.90		64.48		66.53	b	57.90		47.04	c	38.31	a	32.56	d	46.24
1992	34.62	a	38.48		42.11		47.20		55.42		-----	z	61.98		63.92		56.28		48.60	a	35.98		26.22	a	46.44	a
1993	19.74	b	23.64		39.16	b	42.83	a	54.52	b	54.41	a	56.53	a	59.89	c	56.79	b	48.39	c	28.75	b	32.02	c	43.06
1994	35.57	a	32.65	b	41.10	a	46.62		52.10	b	55.90		65.83	b	61.97	a	58.10		44.34	b	31.04	c	31.08	a	46.36
1995	31.67	a	38.98	e	37.14	b	41.79	b	50.35		54.58		62.74		58.98		58.90	a	45.40	a	41.41	c	30.81	g	47.45	a
1996	32.60	b	33.83	c	38.95	b	45.17		47.71		56.20		66.13		64.61		53.57		46.16		38.27		31.54	c	46.23
1997	31.28	b	33.21		40.08	a	40.90	a	54.35	a	56.48	c	63.45	a	64.84	b	56.78	a	45.96	c	38.35	d	31.13	d	46.40
1998	33.29	e	35.63	e	40.69		42.62	a	49.00	a	57.22		68.96	c	65.98	d	60.37		44.66	b	38.36	a	31.11	c	47.32
1999	35.21	e	34.78	e	37.21	c	40.78	c	47.83	b	54.98	c	63.06		64.71	b	53.98	d	47.69	e	41.64	b	34.52	b	46.37
2000	29.42	e	33.80	a	36.10	a	45.30	b	45.70	a	53.84	b	62.10		62.98		55.18		43.36	b	29.19	a	26.95	a	43.66
2001	27.28	a	27.82	c	41.62	c	40.56	e	54.12	e	53.96	c	62.17	d	64.98	b	58.14	e	45.57	c	37.79	a	32.61	i	46.73	a
2002	32.48	e	34.65	b	36.62	b	43.40	d	47.92	e	59.07	a	66.23	e	60.09	c	55.50	b	41.50	d	36.95	j	34.39	d	46.53	a
2003	36.52	a	33.13	a	41.34		42.34	a	49.67	g	60.43	a	69.44		64.73	a	59.65	c	49.93	b	33.73	b	32.35	k	49.12	b
2004	27.86	f	33.07	f	43.16	i	45.65	c	50.19	o	59.05	a	66.42		65.47	a	53.72		46.11		37.05		34.47		50.99	d
2005	33.18	f	33.70	f	41.29	b	43.79	d	51.79	e	54.72		65.95	b	63.98	b	53.40	e	46.10	e	33.69	d	27.30	f	50.52	c
2006	35.29	e	37.43	m	34.76	h	43.89	b	52.84		59.05		66.50	a	62.18		56.59	a	43.87	d	38.30	b	29.32	c	48.78	b
2007	26.87	d	36.44	c	43.12	f	43.00	e	52.78	a	57.00	b	68.58		62.20	a	53.90	d	43.92	e	37.19	c	31.02	g	48.19	b
2008	27.91	i	35.02	e	35.17	d	39.19	d	52.71	b	55.55	b	65.10	a	64.11		56.12	a	46.68	f	40.26	c	25.18	f	49.25	c
2009	31.55	a	32.55		34.19		42.52		51.68	a	58.50		67.13		64.60		58.07	a	41.93	a	37.29	b	24.45	b	45.37
2010	35.50		34.39	e	37.93	c	41.28	e	47.17	d	54.06	c	65.47	m	61.65		55.64	b	46.40		35.55		31.66	b	43.75	a
2011	34.32	c	30.11		38.16		38.86	b	45.90		55.25		61.11		64.65		60.32		46.81		35.80		29.92		45.10
2012	34.15		34.16		36.94		45.42		50.26		53.27	j	64.40	b	64.79		56.43	b	45.61		39.10		31.23		45.68	a
2013	29.15	a	34.24	a	38.73		43.30		51.58	e	58.07		68.26		65.02	c	56.95		43.73	p	34.65		26.74		46.06	a
2014	32.77		31.91		39.90	e	43.45		51.90	a	56.10		68.52		65.35		57.85		50.05		32.26	a	32.98		46.92
2015	35.58	a	38.29		42.82		41.42	d	52.34		65.23		66.00		65.34		54.53		49.29		33.47		31.08		47.95
2016	29.21		38.29		38.73		48.72		51.97		59.18		62.77	a	64.79		53.62		45.45		41.58		21.89		46.35
2017	20.48		31.68		40.08		40.98		52.48		58.55		67.50		66.24		57.37		43.28	a	37.38		27.58		45.30
2018	35.00		30.86		36.19		44.12		54.80	a	58.27		67.23		65.26		52.83		44.98		36.10		31.44	f	47.79	a
2019	-----	z	27.89	f	29.14	f	45.95	i	51.75	o	58.22	e	62.48		65.21		55.73		38.81		37.23		30.98	b	49.81	e
2020	34.76		33.46	b	35.56		33.93	w	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	34.60	i
2021	-----	z	-----	z	-----	z	-----	z	-----	z	63.29	i	68.87	a	64.55	c	56.69	a	45.50		39.77	b	32.00		51.23	f
2022	33.08	a	36.70	h	38.69	r	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	33.08	k
2023	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2024	36.18	l	37.12	u	43.03	m	42.43	g	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	31.40		34.21		38.56		42.85		49.97		57.21		64.01		62.90		55.46		45.86		36.79		30.83		45.83
S.D.	3.86		3.67		2.29		2.56		2.79		2.55		2.86		2.63		2.78		2.20		3.16		3.54		1.01
SKEW	-1.10		-0.92		0.17		0.33		0.06		0.57		-0.18		-0.21		-0.12		-0.45		-1.14		-0.85		-0.64
MAX	36.52		41.39		43.02		48.72		55.42		65.23		69.44		67.42		60.88		50.39		41.64		37.95		47.95
MIN	19.74		22.60		34.19		37.80		45.32		53.00		56.53		58.39		49.52		38.81		26.58		20.45		43.06
YRS	51		48		50		54		51		54		58		58		57		55		53		47		27