PRIEST RAPIDS DAM, WA

Average of Minimum Temperature (Degrees Fahrenheit)

(456747)

File last updated on April 20, 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
1956	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	28.53	p	-----	z
1957	12.41	i	25.95	h	34.25	k	46.18	h	57.96	h	60.55	h	61.30	h	61.92	g	54.95	k	42.54	e	30.16	k	30.05	k	42.54	k
1958	29.41	i	36.35	h	33.88	o	40.59	h	55.86	i	63.57	i	68.90	j	67.71	j	52.00	k	41.65	h	31.47	m	28.45	k	-----	z
1959	23.81	j	26.10	h	33.27	e	41.05	h	48.16	l	57.18	h	65.26	h	61.43	j	53.35	j	43.32	i	28.94	l	30.14	i	33.27	k
1960	17.11	l	29.55		36.55		43.07		49.16		59.57		68.52		62.68		57.23		44.87		33.83		25.26		46.39	a
1961	28.13		36.04		36.84		45.33		51.03		61.93		68.10		69.13		55.21	b	43.74		29.39	b	28.77		46.14
1962	24.63	a	31.00		34.26		45.52	a	51.35		58.50		-----	z	64.32		55.67		45.23		38.37		34.52		43.94	a
1963	20.74		32.82		38.32		42.07		51.58		56.37		62.48		64.87		60.20		49.35		38.23		29.55		45.55
1964	30.84		30.24		35.77		41.55	a	50.48		56.60		63.23		61.03		54.73		46.03		35.67		22.23		44.03
1965	27.77		33.57		34.55		46.00		51.90		58.27		64.48		65.16		54.37		48.32		40.67		29.19		46.19
1966	27.94		33.43		36.87		44.83		51.39		55.67		62.90		66.74		60.00		43.55		38.83		34.68		46.40
1967	33.03		34.54		34.29		40.30		50.00		59.20		63.42		69.74		60.77		47.03		38.00	a	26.61		46.41
1968	30.23		33.90		40.97		39.83		51.45		58.86	b	66.65		62.61		58.33		43.90		38.03	a	28.03	a	46.07
1969	16.81		26.36		35.97		44.07		53.93	a	62.57		65.26		62.52		59.97		43.61		34.80		32.90		44.90
1970	28.29		34.89		37.39		40.83		51.00		60.23		65.84		65.29		53.64	b	44.77		35.83		24.59	b	45.22
1971	29.26	d	31.58	b	32.07	c	42.10		52.92	g	54.80		63.68		68.17	a	51.67		42.54	e	34.83	a	26.06		43.34	a
1972	22.22	d	26.76	d	35.93	a	38.80		54.00		58.93		63.97		65.35		-----	z	-----	z	37.57		22.77		42.63	b
1973	25.77		32.68		40.52		45.27		53.13		57.77		66.87		64.42		56.80		45.74		35.00		35.03		46.58
1974	23.61		34.14		37.29		44.00		50.42		60.67		63.32		66.68		58.43		44.77		38.40		31.90		46.14
1975	27.77		28.68		34.65		39.30		51.63	a	58.17		68.19		62.84		59.23		47.23		33.70		30.58		45.16
1976	27.42		31.00		33.48		42.33		50.00		55.73		62.97		61.48		59.67		41.88	o	34.77		26.45		44.12	a
1977	22.45		32.93		36.35	h	47.93		50.90		62.20		63.61		67.81		54.80		45.32		33.67		30.19		46.53	a
1978	29.61		33.29		39.03		43.23		50.35		59.93		64.84		62.84		55.23		41.64	i	-----	z	23.32		46.17	b
1979	10.00		27.32		37.42		42.70		52.54	c	60.85	d	66.06		64.87		59.20		48.30	a	32.57		33.16		44.58
1980	21.48		31.69		37.29		46.40		52.64	c	56.85	d	64.00		58.61		55.93		44.10		35.96	c	32.03		44.75
1981	35.90		32.68		39.33	a	43.10	a	51.74		55.27		61.58		66.03		54.90		41.42		35.72	a	28.13		45.48
1982	22.23	a	29.25		36.77	a	38.07	a	50.39		61.07		62.90		64.84		56.21	b	42.81		31.83		27.94		43.69
1983	31.87		35.04		40.45		42.23		53.97		57.10		62.58		64.97		52.90	a	44.26		38.67		20.53	a	45.38
1984	27.42		32.93		39.10		42.53		48.06		55.86	a	63.26		62.68		51.90		39.03		33.03		18.10		42.83
1985	22.03		20.00		33.27	a	42.73		50.48		57.30		67.97		60.35		49.30		40.35		19.17		17.03	b	40.00
1986	28.84		32.71		40.23		43.17		52.90		62.60		61.32		68.71		55.13		44.77		37.60		28.83	a	46.40
1987	27.00		34.07	a	39.23		46.50		53.71		59.40		63.39		62.47	a	-----	z	43.43	a	-----	z	25.87	a	45.51	b
1988	25.68		30.21		35.74		44.93		49.39		57.33		64.26		61.93	a	51.80		46.13		35.33		25.33	a	44.01
1989	28.00		18.46		34.19		43.77		45.90		59.97	a	61.32		61.42		51.57		41.16		31.23		25.97		41.91
1990	30.70	a	25.96		38.77		46.97		49.23		57.37		67.94		66.06		60.87		-----	z	38.34	a	19.30	a	45.59	a
1991	23.43	a	35.15	a	35.90	b	43.77		47.79	b	51.71	b	64.80	a	67.10		57.50		44.16		37.10		32.26		45.06
1992	32.93	a	36.17		41.65		45.57		54.70	a	64.27		65.23	a	62.97		53.62	a	44.97	a	34.80		23.52		46.70
1993	19.23	a	24.44	a	33.61		41.63		51.35		56.47		59.23		59.97	a	50.41	a	42.48		24.17		28.86	b	40.99
1994	29.84		25.48	a	34.55		45.17		53.86	b	57.70		66.90	a	65.39		57.53		42.77	a	31.17	a	28.28	b	44.89
1995	28.81		32.96	a	34.53	a	40.30		50.69	b	54.10		62.40	a	58.87		55.86	a	41.68		32.77		26.94		43.33
1996	21.43	a	23.03		31.55		41.63		48.00	d	55.89	b	61.77		58.97	a	50.20		40.45		32.59	a	26.35	e	40.99
1997	26.14	b	30.75		-----	z	42.33	c	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	29.18	c	32.10	h
1998	28.88	g	36.08	c	39.65		44.11	b	52.48	b	59.93		68.71		67.34	b	59.14	a	-----	z	39.85	c	27.20	a	49.45	b
1999	30.77	a	33.50	b	36.93	a	42.96	b	48.13		57.83		62.83	a	64.23	a	53.00	a	41.52		39.17		31.93	a	45.23
2000	28.07	b	32.59	b	35.20	a	43.50	d	50.96	f	58.45	a	63.19		63.39		51.50	d	43.05	j	30.07		26.70	a	43.27	b
2001	29.30	a	28.67	a	38.00	b	43.00	b	51.65		56.31	a	65.74	d	65.23		58.23		42.89	d	37.82	b	30.97	a	45.65
2002	31.41	b	29.88	b	34.35		43.83		51.97	a	59.24	a	66.26		64.28	b	57.12	d	42.10	a	35.03	a	35.03	a	45.88
2003	35.13	a	33.54	b	40.06		43.16	k	50.68		63.24	i	68.19	e	66.61		60.07		48.90		32.67		31.65		46.75	b
2004	29.11	d	32.34		40.77	a	44.54	b	52.68		60.60		69.03		67.84		58.40		48.10		33.83		33.06		47.53
2005	27.77		29.86		39.65		44.86	b	54.71		58.73		65.83	a	68.55	t	56.90	a	48.03		35.21	b	26.55		44.37	a
2006	33.48		30.00	a	37.94		43.67		52.16		60.59	a	68.74		65.20	a	55.50		44.77	a	35.10		26.68		46.15
2007	25.84		32.82		39.74	d	43.87		52.81		59.20		68.19		64.10	a	57.19	d	44.33	a	34.33		29.37	a	45.98
2008	23.52		34.33	b	35.26		40.24	a	53.13	a	57.67		65.83	b	63.81		56.38	a	44.84	f	38.83		22.03		44.64	a
2009	27.84		30.76	c	33.45		43.27		50.97	a	61.04	c	67.84		66.13		57.67		44.48		35.87		22.60	a	45.16
2010	36.19		36.64		38.94		45.47		50.10		58.27		65.03		64.03		57.27		47.55		33.77		31.84		47.09
2011	29.32		28.07		36.87		42.07		49.27	a	56.67		62.52		65.94		59.07		47.42		32.53		27.29		44.75
2012	26.37	a	31.78	b	37.55		44.13		49.55		55.73		64.35		65.74		57.39	b	45.06		39.10		34.23		45.92
2013	28.47	a	33.32		39.19		45.33		54.70	h	60.46	b	69.06		68.29	c	62.04	d	45.52		36.03		24.00	g	48.77	b
2014	32.55		29.36		38.58		45.75	b	54.57	c	60.90		69.74		69.14	b	61.37		53.20	a	35.30		35.40	a	48.82
2015	32.70	a	38.79		42.00		46.00		57.30	a	67.00	f	69.92	g	68.69	b	57.37		53.55		38.24	a	32.21	b	46.68	b
2016	32.42		37.25	a	41.77	a	50.17		56.25	g	61.16	e	66.67	d	66.79	b	57.52	e	50.40	a	42.64	h	26.15	d	49.03	b
2017	21.45		29.10	g	39.36	f	44.96	b	52.81	d	60.17	f	69.21	b	68.31	b	59.21	b	45.74		39.07	b	30.06		47.87	c
2018	35.07	d	32.57	e	37.92	f	44.00	b	57.43	a	60.91	h	68.67	a	67.35	e	57.93		46.86	c	39.63	c	34.81	d	48.43	b
2019	32.74	h	24.59	a	32.68	c	47.76	a	56.07	b	61.47		66.50	c	69.32		58.38	a	42.80	a	35.13		33.03	b	47.98	a
2020	34.30	a	35.48	b	39.13		46.79	a	53.33	a	60.41	a	66.26	d	67.34	b	59.21	b	48.71		38.07		33.24	b	48.52
2021	35.50	g	30.78	e	39.39	h	46.12	e	54.59	i	65.88	f	71.81	d	67.31	b	58.64	e	48.33	m	45.00	w	-----	z	54.93	g
2022	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	69.22	d	63.95	k	57.62	r	31.43		24.19		41.62	i
2023	31.62	b	30.68		35.54	e	44.92	f	57.07	c	63.21	b	69.48	b	69.32		60.63		50.19		36.72	a	36.83	a	49.21	a
2024	28.93	c	38.48		40.94		44.39	l	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	36.12	i
Period of Record Statistics
MEAN	27.69		31.39		37.10		43.71		51.75		58.68		65.42		65.08		56.63		45.14		35.16		28.44		45.16
S.D.	4.91		4.04		2.69		2.33		2.37		2.48		2.67		2.84		3.05		3.04		3.72		4.53		1.87
SKEW	-0.86		-0.94		-0.07		-0.05		0.28		-0.16		0.11		-0.38		-0.54		0.61		-1.72		-0.36		-0.86
MAX	36.19		38.79		42.00		50.17		57.43		64.27		71.81		69.74		62.04		53.55		40.67		36.83		48.82
MIN	10.00		18.46		31.55		38.07		45.90		51.71		59.23		58.61		49.30		39.03		19.17		17.03		40.00
YRS	60		63		60		61		57		57		60		62		60		55		59		62		40