COLVILLE AIRPORT, WA

Average of Maximum Temperature (Degrees Fahrenheit)

(451650)

File last updated on April 23, 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	56.45		56.57		72.58		76.90		87.58		82.26		77.63		63.55		43.45	a	34.71		65.17	b
1938	33.45		38.04		48.16		62.43		71.35		83.17		89.90		83.94		83.76	a	60.70	a	38.69	a	33.26		60.57
1939	35.16		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	35.16	k
1940	32.06		38.31		53.13		59.87		73.06		82.70		86.39		87.94		77.03		59.10		36.90		35.13		60.13
1941	34.77		42.82		55.15	r	66.17		65.97		75.48	a	90.03		81.90		64.57		56.81		46.20		36.84		60.14	a
1942	29.58		38.57		50.77		62.73		63.48		71.17	a	84.55		87.65		79.30		63.29		38.80		34.65	n	60.90	a
1943	23.81		39.64		44.42		62.87		64.29		72.00		86.19		82.29		80.07		58.10		42.23		33.42		57.44
1944	32.58		37.38		46.58		60.23		69.74		75.13		86.42		82.11	c	77.13		66.10		40.70		31.35		58.79
1945	34.16		38.75		45.94		55.00		69.13		72.73		87.94		86.79	c	70.23		61.32		38.97		33.06		57.83
1946	32.71		39.39		48.90		62.93		73.19		72.33		84.97		84.81		71.43		54.06		39.97		33.94		58.22
1947	29.35		42.57		53.55		61.21	a	74.00		71.57		85.19		81.06		71.73		55.71		38.83		34.39		58.26
1948	31.45		35.83		46.90		54.53		63.74		78.37		-----	z	78.10		73.31	a	59.52		41.37		26.38	b	53.59	a
1949	18.52		32.46		47.16		64.43		73.42		77.19	d	83.81		84.03	a	75.80		55.87	a	-----	z	-----	z	61.27	b
1950	16.92	f	36.04		42.55		-----	z	65.97	a	75.67		85.71		86.06		79.31	a	52.79	c	40.60		37.55		60.22	b
1951	32.03		37.29		43.13		62.62	a	69.23		75.54	b	86.00	i	84.19	d	74.40		53.16		40.77		26.40	a	54.43	a
1952	29.13		38.10		43.58		63.53		71.70	a	75.23		87.79	b	85.71		80.40		69.65		40.87		36.16		60.15
1953	42.45		42.86		50.68		56.77		67.52		69.70	c	86.13		83.48		74.00	f	63.23		46.60		37.00	a	58.76	a
1954	31.06		40.96	a	47.81		55.97		69.84		71.37		84.20	a	77.90		69.57		57.35		46.57		35.39		57.33
1955	32.32		35.00		39.97	a	52.50		61.48		77.27		80.26		86.35		75.03		56.00		34.23		30.71		55.09
1956	32.94		30.83		45.81		64.10		74.94		72.37		87.81		84.19		77.00		56.81		38.30		34.19		58.27
1957	18.28	f	36.35	b	46.74		61.40		73.42		74.43		83.19		81.65		80.68	b	54.48		41.63		37.69	b	61.06	a
1958	36.52		45.21		50.45		57.50		79.19		81.52	a	90.39		92.52		72.93		61.48		39.21	a	33.35		61.69
1959	31.57	a	36.32		48.87		61.97		64.13		75.30		88.84		80.74		68.34	a	55.57	a	37.76	a	33.03		56.87
1960	28.32		38.89	a	48.55		59.45	a	63.81		78.37		94.68		79.77		77.50		60.94		41.70		31.71		58.64
1961	37.29	n	42.57		51.03		57.37		66.52		82.60		87.77		90.00		70.67		55.39		38.70		32.00		61.33	a
1962	29.07	b	38.30	a	45.97		63.60		63.90		75.67		84.71		79.87		77.45	a	57.74		44.93	b	38.03	a	58.27
1963	28.74		43.11		51.87		57.17	a	69.03		74.73		81.77		85.61		81.20		62.35		42.34	a	32.26		59.18
1964	34.90		39.55		44.81		57.30		66.29		73.77		83.23		77.16		69.13		60.97		40.53		28.00		56.30
1965	33.23		39.21		46.52		61.10		67.19		75.80		86.27	a	81.71		68.33		63.45		44.03	a	35.94		58.57
1966	33.29		40.50		49.84		60.14	a	71.03		71.47		82.77		83.87		78.80		57.68		44.53		37.84		59.31
1967	37.94		45.39		47.42		54.77		66.52		79.67		87.19		93.10		83.03		57.84		43.20		31.61		60.64
1968	33.16		46.82	a	53.35		56.73		67.55		73.57		88.74		78.32		72.37		54.45		41.27		29.32		57.97
1969	23.19		36.71		50.42		58.47		72.13		79.00		82.52		84.10		72.50		55.58		42.77		33.26		57.55
1970	31.58		43.14		48.74		54.83		70.00		79.57		87.48		88.48		68.60		56.90		40.93		32.10		58.53
1971	33.52		38.57		44.10		58.60		70.10		70.47		84.68		90.23		67.97		55.61		41.17		29.29		57.02
1972	29.61		38.55		51.55		55.20		70.03		73.03	a	81.19		86.45		68.87		58.77		41.60		30.55		57.12
1973	31.97		41.43		52.00		61.03		70.94		76.37		88.77		86.87		74.27		55.74		37.73		36.19		59.44
1974	31.65		40.93		48.07	a	58.37		63.03		82.23		82.84		86.16		79.27		64.29		42.80		37.13	a	59.73
1975	30.55		35.43		43.73	a	55.23		67.68		73.07		88.10	a	74.73	i	76.70		55.23		40.93		35.65		54.75	a
1976	33.26		38.83		44.94		57.93		67.97		71.87		80.81	e	76.26		78.27		58.90		43.73		33.55	b	57.19
1977	27.26		42.36		48.84		66.67		63.97		81.23		83.74		78.53	p	67.52	c	58.35		39.07		30.29		55.39	a
1978	32.58		38.71		50.06		59.73	h	64.77	a	77.79	a	84.10		79.26		66.97		-----	z	33.00	u	24.65		57.65	c
1979	19.90		34.43		52.23		59.10		69.68		78.43		86.58		85.71		76.73		61.60	a	36.90		38.87		58.35
1980	26.32		37.00		47.19		63.87		67.58		71.40		82.61		77.39		71.17		65.58	l	39.04	g	36.13		58.07	b
1981	38.19		42.39		54.16		58.63		65.23		69.17		78.26		86.68		73.63		54.58		43.37		33.32	c	58.13
1982	30.90	a	36.89	a	49.58		56.53		68.13		80.07		79.74		82.16		71.97	a	56.60	a	38.67		32.00	b	56.94
1983	37.30	a	42.68		52.23		59.67		72.17	a	72.82	b	75.48		84.32		68.13		57.35		42.93	a	23.68		57.40
1984	32.71		38.54	e	49.41	d	56.30		61.84		71.17	a	83.45		83.84		68.67		53.55		40.10		23.93	c	55.29
1985	27.77		32.41	a	47.29		61.30		71.80	a	76.60		93.23		80.55		64.77		54.82	c	27.34	a	26.33	a	55.35
1986	35.00	a	38.57		53.03		56.48	a	69.87		80.33		78.17	a	90.03	a	66.53		60.58		41.90		33.33	a	58.65
1987	33.32		41.82		51.90		64.83		72.06		81.00	d	81.83	a	83.03	a	79.97		62.42		-----	z	-----	z	65.22	b
Period of Record Statistics
MEAN	31.51		39.11		48.58		59.50		68.64		75.77		85.17		83.89		73.89		58.47		40.78		32.79		58.18
S.D.	4.39		3.38		3.46		3.45		3.82		3.82		3.78		3.97		5.07		3.71		3.32		3.86		1.51
SKEW	-0.71		-0.07		-0.13		0.15		0.18		0.27		-0.05		0.18		0.01		0.74		-1.30		-0.71		0.03
MAX	42.45		46.82		56.45		66.67		79.19		83.17		94.68		93.10		83.76		69.65		46.60		38.87		61.69
MIN	18.52		30.83		39.97		52.50		61.48		69.17		75.48		76.26		64.57		52.79		27.34		23.68		55.09
YRS	47		49		49		48		50		50		48		48		49		48		46		47		35