LOWER GRANITE DAM, WA

Average of Average Temperature (Degrees Fahrenheit)

(454835)

File last updated on April 25, 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
1965	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	39.15	e	39.15	k
1966	39.44	f	41.93	e	47.31	e	-----	z	63.00	i	-----	z	76.38	g	77.66		70.95		-----	z	47.21	a	43.79		54.81	f
1967	43.83	a	44.18		45.06		48.75		58.87		69.77		78.56		81.63		74.57		57.48		44.00		37.00		56.98
1968	39.08		44.90		51.34		51.57		61.94		69.78	a	79.58		73.15		67.80		54.27		44.82		38.83	b	56.42
1969	25.27		38.98		47.11		53.68		62.68		72.62		75.15		74.37		68.92		53.34		45.75		37.90	a	54.65
1970	35.76		44.98		45.89		49.25		61.63		70.68		78.25	a	77.98	h	63.38	i	54.28	d	44.87	d	37.45	j	53.95	c
1971	38.37	l	43.58	h	43.09	i	53.90	i	62.97	l	63.77	j	75.13		81.45		63.35		53.57	a	43.40	f	37.53	m	68.37	h
1972	-----	z	39.14		49.13	a	50.55		62.03		68.10		75.55	b	78.57	a	63.33		55.98		46.12		33.07	c	56.51	a
1973	33.71	b	41.83	b	47.22	b	52.75		61.74		68.02		79.34		75.65		67.55		55.42		42.10		42.21		55.63
1974	34.75	c	44.30	a	46.71		53.38	a	58.48		70.03		74.52	a	75.05		70.07		58.26		47.00	c	42.44		56.25
1975	37.71		38.07	a	44.03		48.78	a	57.92	a	63.95		77.02		71.94	d	69.30		56.19		-----	z	-----	z	56.49	b
Period of Record Statistics
MEAN	35.73		42.03		47.09		51.09		60.66		69.12		77.01		76.61		68.43		55.42		45.23		39.30		55.98
S.D.	5.70		2.74		2.16		2.05		1.90		2.55		1.98		3.46		3.55		1.72		1.68		3.48		0.89
SKEW	-0.56		-0.29		0.61		0.05		-0.49		-0.86		0.06		0.29		-0.03		0.36		-0.60		-0.40		-0.54
MAX	43.83		44.98		51.34		53.68		62.68		72.62		79.58		81.63		74.57		58.26		47.21		43.79		56.98
MIN	25.27		38.07		44.03		48.75		57.92		63.95		74.52		71.94		63.33		53.34		42.10		33.07		54.65
YRS	7		9		9		8		8		8		9		9		9		9		8		8		5