COLVILLE AIRPORT, WA

Average of Average Temperature (Degrees Fahrenheit)

(451650)

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
1937	-----	z	-----	z	42.45		46.23		55.71		62.45		70.03		64.31		60.92		51.03		37.40	a	30.23		52.08	b
1938	28.44		30.91		39.21		47.70		55.26		65.53		71.97	b	64.90		66.02	a	48.59	b	30.76	a	27.32	a	48.05
1939	29.45		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	29.45	k
1940	25.40		31.91		42.06		48.33		57.85		65.50		69.90		68.61		62.28		48.77	i	30.28		29.13		48.30	a
1941	29.56		34.29		42.86	x	51.30		54.37		62.19	a	72.21		66.42		53.77		45.48		37.88		30.63		48.92	a
1942	22.06		31.30		38.74		48.50		52.06		59.04	b	68.34		69.13		60.18		47.66		31.73		28.68	n	48.07	a
1943	16.95		30.21		33.40		49.27		50.71		58.55		67.85		64.93	b	60.92		47.58		35.30		26.11		45.15
1944	23.94		28.79		35.84		47.48		56.08		62.03		68.32		66.98	d	60.47		51.69		35.28		25.19		46.84
1945	28.77		32.45		37.65		43.27		55.95		59.58		69.24		68.20	c	55.73		48.26		33.00		27.45		46.63
1946	25.94		30.04		39.50		49.58		56.87		58.78		67.21		66.95		57.00		42.53		31.98		27.65		46.17
1947	21.61		32.75		41.53		47.60	a	58.37		59.77		67.60		64.31		58.33		48.11		33.52		29.08		46.88
1948	23.85		27.53		36.52		44.25		53.98		65.35		-----	z	64.05		57.29	a	45.00		34.75		19.27	c	42.90	a
1949	7.56		22.09		37.34		49.22	a	58.66		61.73	d	66.98		69.27	a	61.52	a	43.82	a	-----	z	-----	z	47.82	b
1950	8.50	m	29.69	a	33.94		-----	z	52.58	a	61.53		69.24		69.27		61.72	a	45.45	c	34.20		32.29		48.99	b
1951	25.13		28.62		33.40		46.62	a	55.37		60.88	b	65.79	j	67.61	d	58.55		45.44		34.55		19.90	b	43.28	a
1952	23.47		29.00		34.48		48.63		56.85	a	61.03		68.91	b	67.58		62.30		51.45		31.23		31.11		47.17
1953	37.10		34.70		39.76		45.33		53.42		57.98	c	67.13		66.76		57.81	f	49.13		38.57		31.17	b	47.37	a
1954	24.24		34.20	a	36.31		43.60		54.58		57.47	a	66.65	a	63.19		56.45		44.32		40.42		29.35		45.90
1955	27.32		25.82		30.17	a	41.93		50.08		61.73		67.48	c	66.35		58.23		46.19		27.55		23.40		43.86
1956	26.85		22.84		35.55		49.55		58.56		59.13		69.44		66.24		59.17		46.23		31.13		28.66		46.11
1957	8.72	f	27.33	b	37.84		47.90		60.26		61.50		65.45		63.58	a	61.98	c	44.35		32.23		31.67	b	48.55	a
1958	30.79		37.75		39.13		45.20		62.23		66.62	a	71.68		72.29		56.72		46.82		30.83	a	29.06		49.09
1959	25.68	a	28.11		38.77	a	48.40		51.50		61.13		69.18		64.11		56.60	a	45.13	a	29.45	a	27.43	a	45.46
1960	20.89		30.29	a	38.08		46.66	a	51.71		62.22		73.10		64.37		59.33		48.31		34.47		26.92		46.36
1961	30.62	n	36.39		40.06		45.53		54.69		65.82		69.95		71.39		54.77		44.13		30.08		24.98		48.89	a
1962	19.43	c	30.80	a	35.13		49.13		52.31		59.93		66.19		63.95		59.31	a	47.00		39.05	b	33.70	a	46.33
1963	21.39		35.36		40.97		45.78	a	54.27		61.45		65.85		67.55		63.15		49.10		35.76	a	26.31		47.24
1964	28.05		27.55		34.26		44.45		52.55		60.35		66.53		61.71		53.48		46.02		33.60		21.63		44.18
1965	27.85		29.82		32.60		47.95		51.85		60.05		67.70	a	66.81		52.90		49.16		36.91	a	29.92		46.13
1966	26.34		32.16		38.77		45.86	a	55.39		57.55		66.31		66.26		62.82		45.60		36.77		33.29		47.26
1967	31.31		35.66		37.94		42.77		52.90		63.67		68.31		71.82		64.68		46.87		35.43		25.48		48.07
1968	26.35		35.80	a	41.74		43.65		52.69		59.42		69.42		64.29		57.45		43.27	a	35.03		22.63		45.98
1969	15.92		27.41		37.71		47.60		57.35		64.48		65.06		64.90		58.38		43.87		35.22		29.53		45.62
1970	24.79		33.11		37.76		43.63		54.95		64.83		70.15		68.27		53.37		43.84		33.12		25.39		46.10
1971	25.83	a	31.07		34.29		45.98		55.95		57.98		67.10		70.71		53.60		43.66		35.37		21.97		45.29
1972	21.53		29.91		40.77		42.62		56.23		60.31	a	64.00		68.23		53.25		44.84		36.52		24.60		45.23
1973	24.37		33.09		40.68		46.55		55.10		60.72		69.85		67.77		59.12		45.74		32.90		31.89		47.31
1974	24.23		34.14		38.72	a	47.68		50.81		65.10		66.35		66.74		58.05		45.98		36.90		31.91	d	47.22
1975	22.44		25.30	a	34.72	a	43.23		53.92		59.33		71.40	a	61.24	j	58.75		45.52		32.25	b	29.34		43.29	a
1976	27.13		30.29		34.21		45.42		53.45		57.60		65.56	e	63.48		60.28		45.02		33.95	a	26.45	b	45.24
1977	18.82		32.79		38.08		49.68		51.24		65.28		66.55		65.20	p	54.76	c	44.45		31.10		23.47		43.29	a
1978	24.19		31.55		39.02		47.57	h	51.70	a	61.84	a	67.76		64.24		54.92		-----	z	28.33	u	17.37		45.84	c
1979	11.55		27.88		39.95		45.73		55.35		63.50		70.73		70.26		61.22		49.92	a	30.30		34.48		46.74
1980	19.63		32.72		38.13		51.25		57.61		59.90		67.97		63.73		57.62		51.24	l	33.48	g	32.23		48.08	b
1981	32.97		35.02		42.97		46.83		54.71		58.05		65.10		69.73		58.63		44.53		37.42		28.16	c	47.84
1982	25.22	a	29.98	a	40.11		44.02		54.11		66.53		66.11		67.60		58.75	b	46.13	a	32.10		26.72	b	46.45
1983	32.78	a	37.00		43.61		47.55		57.69	b	60.84	b	63.00		69.21		54.37		46.28	a	39.09	a	17.56		47.42
1984	27.85		33.31	e	42.11	d	45.93		51.10		59.21	a	67.76		67.58		54.25		42.79		35.72		17.43	c	45.42
1985	22.97		24.63	a	36.98		48.55		57.57	a	62.55		74.66		65.92		54.37		45.09	c	19.77	b	21.50	a	44.55
1986	30.22	a	31.02	a	43.67	a	45.74	a	56.68		65.87		64.62	a	72.78	a	55.33		48.18		35.85		29.35	a	48.27
1987	28.55	a	35.54		43.07	a	52.63		58.65	a	66.63	d	68.62	a	67.22	a	62.83		47.95	a	-----	z	-----	z	53.17	b
Period of Record Statistics
MEAN	24.82		31.02		38.16		46.72		54.88		61.61		68.14		66.91		58.28		46.33		33.84		27.03		46.40
S.D.	5.32		3.60		3.16		2.45		2.71		2.73		2.41		2.61		3.32		2.26		3.58		4.44		1.19
SKEW	-0.78		-0.36		-0.25		0.12		0.33		0.37		0.40		0.31		0.17		0.58		-1.19		-0.56		-0.00
MAX	37.10		37.75		43.67		52.63		62.23		66.63		74.66		72.78		66.02		51.69		40.42		34.48		49.09
MIN	7.56		22.09		30.17		41.93		50.08		57.47		63.00		61.71		52.90		42.53		19.77		17.37		43.86
YRS	47		49		49		48		50		50		48		48		49		47		46		47		34