LOWER GRANITE DAM, WA

Average of Maximum Temperature (Degrees Fahrenheit)

(454835)

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
1965	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	45.85	e	45.85	k
1966	45.92	f	50.33	d	57.35	e	-----	z	81.41	i	-----	z	92.29	g	92.26		83.47		-----	z	53.69	a	48.39		64.25	f
1967	49.90	a	53.18		54.13		59.47		71.84		85.30		96.32		100.97		91.53		69.61		53.20		44.39		69.15
1968	46.52		53.52		62.48		63.63		74.90		82.93		96.61		87.26		80.90		65.39		51.80		42.68		67.39
1969	30.94		45.04		58.23		64.67		76.48		86.97		92.03		91.03		82.63		63.77		54.03		42.57	a	65.70
1970	41.26		52.82		55.61		59.90		74.71		83.97		91.77	a	92.39	h	75.90	i	63.63	d	51.31	d	44.52	j	63.89	c
1971	45.60	k	51.95	h	51.50	i	65.50	h	75.20	k	74.62	i	88.77		95.65		74.13		63.03	a	49.29	f	44.95	k	80.40	h
1972	-----	z	45.62		57.37	a	59.20		73.26		79.30		88.72	b	91.97		74.60		65.81		51.17		39.29	c	66.03	a
1973	40.47	a	49.04	b	56.06		63.17		74.13		79.37		93.32		89.68		78.20		63.71		47.07		47.32		65.13
1974	39.17	a	51.29		55.06		61.70		68.26		83.87		87.35		87.35		83.70		69.03		53.30		48.68		65.73
1975	43.94		44.11	a	51.58		56.93		67.37	a	73.33		89.10		83.19	d	82.30		63.32		-----	z	-----	z	65.52	b
Period of Record Statistics
MEAN	41.74		49.44		56.43		61.08		72.62		81.88		91.56		91.04		81.27		65.26		51.95		44.89		66.62
S.D.	6.05		3.69		3.02		2.64		3.26		4.36		3.38		5.17		5.29		2.49		2.26		3.28		1.65
SKEW	-0.50		-0.33		0.48		-0.10		-0.64		-0.86		0.38		0.47		0.37		0.92		-1.30		-0.38		0.74
MAX	49.90		53.52		62.48		64.67		76.48		86.97		96.61		100.97		91.53		69.61		54.03		48.68		69.15
MIN	30.94		44.11		51.58		56.93		67.37		73.33		87.35		83.19		74.13		63.03		47.07		39.29		65.13
YRS	7		9		9		8		8		8		9		9		9		9		8		8		5