SANDY LAKE DAM LIBBY, MN

Average of Average Temperature (Degrees Fahrenheit)

(217460)

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
1892	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1893	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1894	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1895	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1896	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1897	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	62.40		46.74		24.56	c	7.40	b	35.27	h
1898	13.29		12.98		27.34		39.78		50.97		61.77		66.19		62.58		57.38		39.56		24.78		7.81		38.70
1899	3.85		-1.17	a	10.19		40.12		49.76	b	62.05	b	67.37		65.39		53.53		45.73		37.93		14.67	b	37.45
1900	14.55		6.23	m	11.50	y	47.80		55.52	b	63.90		64.47		71.52		57.68		54.02		23.60		16.26	d	46.93	b
1901	4.90	k	5.30	c	22.93	d	42.95	a	57.24	b	62.54	b	70.98		67.18		55.70		46.47		25.72		10.23		42.47	a
1902	10.77	a	13.06	b	30.77	a	39.25		55.35	a	59.30	b	67.76		63.32		52.98	b	44.05	a	31.48	a	9.45	i	42.55	a
1903	5.95	b	6.72	a	25.95	b	41.07	a	55.11		61.02		64.79	b	60.29		52.98	a	45.87		25.41	a	4.77	c	37.49
1904	-0.38	a	-1.50	b	15.00	u	36.37	d	52.05		60.65		63.87		62.84		53.57	a	44.09	b	34.64	a	13.27		38.13	a
1905	2.27	a	6.56	a	30.00		38.91	a	49.58	a	59.87		66.65	a	67.31		60.35		41.04	e	30.33		17.33	a	39.18
1906	14.03		7.36		17.65		45.65		52.02		63.23		67.45		67.19		63.12		45.50		31.48	d	13.03		40.64
1907	1.58		12.00		25.08		32.87		43.24		63.37		66.73		64.55		54.82		44.90		31.28	a	20.69		38.43
1908	14.90		17.07	b	26.08		44.02		51.73		62.05		67.50		63.42		62.33		47.21		33.15		16.47		42.16
1909	8.87		12.12		24.24	b	33.38		49.79		64.02		67.96	d	67.62	a	56.43		43.66		34.57	b	10.98		39.47
1910	10.55		5.29		36.87		-----	z	50.02		66.62		67.61		62.90		56.23		48.76		24.43		11.92		40.11	a
1911	3.50		14.59		27.50		39.10		53.87		64.28		63.90		60.48		54.38		42.37	a	19.63		19.40	a	38.58
1912	-9.66		6.93		17.15	a	42.78		52.62	a	60.65		65.98	a	60.47		56.00		46.32		32.18		17.40	a	37.40
1913	3.63		5.14		16.16		44.05		48.42		64.25		64.34		65.55		55.67		40.73		34.83		25.84		39.05
1914	14.18		-1.02	c	23.18		37.90		55.89		60.95		69.97		63.53		57.86	a	50.44		29.18		7.05	a	39.09
1915	7.80	a	19.93		26.45	a	49.75		48.55		56.85		62.21		62.31		56.55		46.15		29.60	a	17.82		40.33
1916	1.77		6.09		19.85		37.86	a	50.77	a	57.87		73.27		65.77		51.23	h	40.28	b	24.97		3.28	a	34.71	a
1917	-0.81		-2.31	a	20.40		34.28		46.60	a	55.10	a	67.45		60.40		55.22		34.16		34.00		2.45		33.91
1918	-0.55		10.82		32.29		40.15		54.23		63.17		66.95		66.76		49.63		44.44		32.08		20.02		40.00
1919	14.98		10.88		22.85		41.00		53.63	a	66.03	a	69.10		63.63		57.23		38.27		20.35		4.15		38.51
1920	0.43	a	8.98		23.82	a	32.27		52.90		61.69	a	65.29		64.65	a	59.07		48.26		24.70		16.24		38.19
1921	13.00		16.62		24.22	b	42.50		54.19		67.00		73.93	a	67.11		57.62		46.08		25.78		19.78	a	42.32
1922	8.19		7.12		26.80	a	40.62		60.03		65.00		65.81		67.98		60.05		48.73		34.43		12.15		41.41
1923	12.23	a	3.84		14.68		40.13		55.00		67.85		70.60		62.28	a	57.92		45.66		35.55	a	23.37		40.76
1924	0.79		16.98		25.26		39.13		45.66		58.28	a	65.53	a	62.11		52.88		51.24	b	28.43	b	2.75	a	37.42
1925	8.19		15.14		28.47		47.82		52.26		60.36	a	65.81		67.45		57.91	a	33.77		30.58		12.77		40.05
1926	11.76		15.20		18.45	a	38.90		55.23	a	58.05		66.60		63.74		51.67		41.69		22.17		9.48		37.74
1927	6.92		14.36		28.68		39.72		46.90		60.08		63.37		59.52		58.35		46.92		23.18		1.65		37.47
1928	8.56		14.18	a	22.45	a	34.85		56.02		57.93		65.94		64.87		53.22		46.65		34.62		22.27		40.13
1929	-3.35		4.80		27.48	a	41.48		48.92	a	60.53		68.95		65.39		54.05		45.40		24.45		11.23		37.44
1930	-0.44		18.55		24.60		42.07		53.03		63.63		68.71		67.60		56.93	b	43.21		31.42		17.63		40.58
1931	17.69		25.04		26.06		42.93		52.00		65.95		69.55		64.15		61.65		50.47		35.43		25.61		44.71
1932	15.35		12.93		16.87		39.98		54.60		65.90		68.11		66.03		53.98		40.37		24.78		11.65	a	39.21
1933	15.11		4.55		22.69		38.18		53.24		69.38		68.97		63.82		59.57		39.87		23.73		8.29		38.95
1934	15.27	a	8.73		20.15		38.98	d	58.66		62.81	a	65.47		59.98		51.20		46.15		32.17		8.87		39.04
1935	1.87		19.52		24.52		36.83	a	49.00		57.60		71.44		64.60		53.83		42.82		22.05		13.79		38.16
1936	-1.23		-5.88		23.81		32.12		56.68		60.02		71.87		64.94		58.28		39.39		23.48		15.45		36.58
1937	-2.47		7.48		18.77		36.82		53.87		60.62		67.37		68.94		56.00		40.16		25.36	a	10.74		36.97
1938	5.76		15.34		31.52		39.57		50.58		62.55		65.39		67.60		54.88	a	48.40		25.62		13.66		40.07
1939	11.65	a	1.55		19.55		36.55		57.31		63.03		68.53		65.61		57.68		42.97		32.97		25.29		40.22
1940	4.11		15.28		17.82		37.90		51.13		60.55		66.84		63.76		59.68		48.71		24.35		17.47		38.97
1941	11.31		11.62		21.82		46.83		58.19		63.82		69.71		65.02		57.93		46.31		31.77		20.77		42.09
1942	16.39		13.71		30.71		47.57		51.11		61.35		65.23		65.71		53.48		46.05		28.77		11.02		40.92
1943	3.65		13.57		17.06		40.27		51.39		63.68		70.68		66.84		54.23		46.10	b	24.88		17.89		39.19
1944	21.35		13.09		21.85		38.37		55.77		63.68		67.29		66.56		56.77		48.00		34.58		15.13		41.87
1945	9.02		13.48		33.65		38.80		48.73		57.80		65.92		66.47		54.78		43.42		26.75		10.15		39.08
1946	10.16		8.23		35.55		44.63		50.60		62.05		67.84		63.44		55.50		44.81		28.22		13.13		40.35
1947	13.48		8.55		22.03		37.15		48.90		59.97		68.95		70.87		55.40		54.21		22.95		13.21		39.64
1948	2.79		8.66		22.68		43.68		53.73		61.03		67.56		66.32		60.90		46.68		29.75		13.75	a	39.79
1949	10.77		7.18		21.52		43.73		55.32		65.70		68.00		68.15	a	53.98		46.58	a	32.85		14.00		40.65
1950	-0.39		11.21		18.11		31.38	a	49.47	a	62.55		65.02		61.71		57.07	a	48.25	a	24.52		7.81		36.39
1951	5.31		13.20		19.23		38.40		57.13	a	60.05	a	66.23		61.74		52.72		43.81		22.67		11.00	a	37.62
1952	6.87	d	20.21		21.37	a	45.13		53.90		64.82		67.03	a	63.37	a	57.57		41.05		31.52		20.95		41.15
1953	11.60		13.80	a	26.21		37.87		53.02		64.77		67.24		68.38	c	57.07		52.68		34.90		15.88	a	41.95
1954	3.37		25.12		21.94		39.60		48.38	a	63.98		67.10		63.74		55.14	a	44.27		33.52	b	21.16		40.61
1955	10.34		8.96		17.08		47.45	a	57.65		63.57		71.68		69.79		56.40		47.33	a	21.82		7.77	c	39.99
1956	10.50		8.14		20.63	a	37.14	a	51.60		65.63		63.32	a	63.98		53.45		52.17	b	31.05		16.19		39.48
1957	1.60		11.95		22.13		40.57		53.32		61.40		70.29		65.02		54.43		44.60	e	29.95	b	18.88	a	39.51
1958	16.58		10.77		28.00		44.08		54.12	a	56.20		64.66		65.44		57.52	a	46.36	b	30.87		6.84		40.12
1959	2.34		10.80		27.21		41.03		54.87		63.58		68.11		68.03		56.45		40.77		19.52		23.65	a	39.70
1960	9.73		12.33		16.69		41.03		53.76		60.77		67.40		67.66	l	56.67	a	46.08	a	32.02		13.31		37.25	a
1961	7.85		21.45		33.24		36.22		52.24		65.32		67.50		69.92		56.73		47.95		29.80		13.68		41.83
1962	4.69		11.02		27.56		38.52		55.50		62.15		64.39		66.00		54.30		48.00		34.03		15.76		40.16
1963	1.10		8.41		30.45		44.10		52.73		65.22		69.48		65.00		58.80		56.89		34.88		8.05		41.26
1964	17.23		17.71		21.68		42.20		58.35		63.43	a	70.81		62.34		55.78		46.13		31.68		8.60	a	41.33
1965	4.84		7.32		16.06		40.68		55.66		61.90		65.66		64.76		49.34	a	47.92		29.58		22.95		38.89
1966	-1.85		12.61		30.87		37.58		50.82		65.03		71.98		64.11		56.95		45.21		26.35		13.94		39.47
1967	11.44		4.87	a	26.74		40.48		48.24		62.35		66.77		64.47		58.52		43.95		28.15		16.60	a	39.38
1968	9.85		11.41		33.89		43.62		51.50		62.28		66.67	a	65.23		57.70		48.39		30.93		12.58		41.17
1969	6.03		16.14		22.90		43.65		54.77		56.85		67.29		69.84		58.02		41.97		30.02		18.26		40.48
1970	3.37		13.38		20.55		39.07		51.10		65.14	a	70.53		67.58		57.30		46.03		27.80		10.89		39.39
1971	0.89		13.82		23.63		41.93		52.06		66.47		63.50		64.40		58.35		49.52		29.02		13.87		39.79
1972	1.31		6.91		21.90		37.05		58.94		63.48		65.48		65.82		54.32		42.35	a	27.67		7.97		37.77
1973	13.19		16.02		35.55		41.52		52.23		63.92		67.37		69.60	a	57.23		51.74		30.55		15.67	a	42.88
1974	7.58		13.28	a	23.95		41.80		51.10		63.93		72.18		63.69		53.28		47.26		32.08		22.98		41.09
1975	11.34		14.32		19.97	a	35.27		58.29		63.80		72.29		66.58		54.65		49.77		32.43	a	13.40	a	41.01
1976	7.30	c	23.17		25.90	b	47.22		55.24		67.12		69.39		67.97		58.20		39.89		23.03		3.67	a	40.67
1977	-2.53	a	17.86		33.34		47.80		63.02		63.62		68.79		59.74		55.83		46.11		29.43		11.82		41.24
1978	5.15		8.27		27.08		41.75		58.18		63.57		67.32		66.73		61.53		47.71		28.21	a	10.32		40.48
1979	-2.21		6.18		25.02		36.71	a	49.52		61.05		68.63		64.26		59.50		43.68	a	29.72		20.68		38.56
1980	8.56		13.16		22.13		45.66	a	59.48		63.48	b	70.10	a	65.90		54.63		41.52	a	32.48		10.79	b	40.66
1981	12.55		20.30	a	33.45		44.75		53.79		61.91	a	67.42		66.50	a	56.07	b	43.29		35.67		14.60		42.52
1982	-4.05		13.16	c	22.02		38.21	a	56.66		57.18		66.39		61.43	c	55.45		46.69	b	26.21	b	18.58		38.16
1983	11.69	b	20.41		27.75	a	38.13		50.85	a	63.17		72.66		72.18		59.57	a	47.55	b	30.70		1.27	a	41.33
1984	9.70	a	25.23	a	22.18	a	44.70		53.13		65.12		68.74	b	71.30	a	53.14	b	48.13	a	29.45	a	13.38	b	42.02
1985	8.42	a	13.63	a	33.86	c	46.43	b	58.90		60.02		67.85		62.87	a	56.25		46.10	a	23.41	a	4.98		40.23
1986	14.80	a	14.38	b	31.76	b	46.31	a	56.36	b	63.88	a	69.35		64.03	a	56.67	a	47.28	a	26.16	b	19.16		42.51
1987	16.68		27.91		34.56		49.88	a	56.66	b	68.28	a	71.00	a	66.21	c	59.72	c	42.38	a	34.53	a	21.73	a	45.80
1988	6.31		7.56	b	26.58		43.09	a	60.30	a	68.62	d	72.24	d	68.57	a	57.64	a	41.98	b	30.78		14.12	a	41.48
1989	14.28	a	5.09		21.24		38.68		56.02	b	63.53	a	71.56		67.28	a	58.77		47.23		25.88		5.57	d	39.60
1990	21.88	a	17.18		29.55		40.34	a	52.17	b	65.88	b	67.08		66.58	a	58.78	c	43.17	g	33.63	o	12.68	i	46.60	c
1991	4.67	g	20.23	h	26.94	m	44.91	g	58.07	b	66.83	a	67.13		68.98	a	56.57	c	41.87	l	21.00	n	14.25	k	63.52	g
1992	16.80	i	21.36	k	-----	z	36.28	l	56.76	f	59.76	e	60.78	b	63.81	m	53.86	l	43.00	n	27.68	p	14.18	l	60.27	j
1993	6.32	l	9.28	l	26.57	k	38.82	e	52.68	c	61.00	e	65.61		67.15		51.73	f	42.07	j	25.89	l	14.79	l	57.05	g
1994	-3.61	m	4.95	h	28.12	k	41.89	g	57.77	e	64.62		66.06		63.73	a	59.50	e	47.31	m	35.08	l	18.70	k	62.34	g
1995	10.59	h	9.29	k	25.05	i	33.58	l	53.47	b	69.10		67.03	b	69.30	a	57.60	d	46.08	m	20.25	n	9.41	n	63.30	g
1996	-3.59	i	10.68	j	16.43	k	35.74	c	51.77		64.37	d	66.10		68.20	a	59.32	e	44.00	f	21.11	l	-----	z	57.58	f
1997	5.53	k	14.95	i	24.60	j	39.28		49.07	b	65.97	a	67.54	f	63.98	a	59.71	a	45.07	j	23.03	n	24.98	j	55.60	g
1998	13.21	j	27.92	i	26.45	j	44.50	h	60.17	b	61.70		68.23		68.32	c	62.35	c	46.43	j	31.00	m	19.55	k	64.15	g
1999	2.97	m	19.64	j	29.96	h	45.64	h	57.04	f	63.78	a	70.48	f	66.24	h	57.61	b	43.80	k	37.73	j	20.98	i	60.69	j
2000	7.08	k	19.06	k	34.97	m	40.88	j	54.93	b	59.43	a	67.90	a	67.37	a	55.74	e	50.52	j	30.92	k	3.47	l	61.07	g
2001	16.93	k	3.06	j	24.95	i	44.47	k	58.25	y	64.63		69.05		70.52	b	57.45	h	46.30	i	40.72	n	26.24	n	68.07	i
2002	15.03	k	21.40	h	17.43	k	38.48	h	50.22	d	65.95	a	71.44		66.08	a	61.27	f	36.39	i	28.27	o	-----	z	63.42	h
2003	7.84	l	-----	z	23.12	j	40.03	k	53.12	f	63.02		68.44		70.21		58.50	b	45.57	i	27.26	m	17.29	j	65.04	h
2004	2.28	m	13.45	j	27.98	i	41.59	h	50.50	e	59.67		66.16		60.34		61.12	a	46.48	k	35.87	k	14.44	n	59.56	g
2005	3.48	k	15.44	k	22.83	h	48.47	n	50.88	c	66.04	b	69.84		66.90	b	60.08	e	47.75	k	32.78	n	16.44	m	62.75	g
2006	22.47	o	12.81	j	29.30	i	47.63	k	54.79	g	65.28		73.81		67.61		57.60	i	40.52	j	31.38	m	22.55	k	68.90	i
2007	12.24	l	7.47	i	29.23	i	41.59	m	57.88	e	67.50		70.34		65.94		57.59	a	48.16	i	29.68	m	9.61	m	63.85	g
2008	6.66	l	5.92	i	21.52	k	40.24	i	50.52	f	61.77	b	67.69	b	67.09	d	57.20	g	45.10		34.47	k	4.11	c	49.15	g
2009	-0.77	a	13.90	g	23.70	i	41.80	j	52.18	n	61.62	a	61.95	l	64.13	a	63.46	g	40.13	h	38.29	p	10.85	k	41.66	i
2010	8.06	m	11.71	i	35.75	i	48.75	h	55.90	e	60.78	a	69.95	a	69.15	a	53.81	c	48.30	k	31.90	j	11.05	k	61.92	g
2011	4.58	r	14.75	l	23.15	h	40.72	g	52.88	e	61.55	a	72.33	b	68.34	f	58.02	e	49.13	l	33.17	c	20.82	l	55.59	g
2012	17.27	k	22.84	j	39.05	j	41.50	l	56.80	c	66.48	a	73.77		67.18		56.41	a	42.98	e	30.21	d	17.26	n	56.26	e
2013	12.75	o	12.00	o	19.24	n	32.68	m	52.05	b	62.42		68.63	d	67.81		60.40	a	44.19	j	28.11	l	3.08	m	62.26	g
2014	-3.25	m	2.53	k	17.79	j	34.89	h	53.86	b	64.25		67.11		66.63		57.52		44.12	j	21.87	o	20.23		54.93	f
2015	11.68		3.59	a	26.54	h	43.43	g	52.52	d	64.67		70.40		65.43	a	63.33		46.73		39.94	e	23.96	c	44.23	b
2016	11.97		17.40		32.98		40.13		55.31		63.22		69.06		68.32		59.63		47.52		40.02		15.68		43.44
2017	12.13		20.55		27.16	i	42.20	e	49.86	m	63.68		67.95		62.71		60.15		45.73	a	25.35		10.47		41.09	b
2018	7.92		5.82		25.98		30.85		59.65		63.97	a	69.68		66.68		58.08		39.35		22.10		19.65		39.14
2019	4.16		5.21		21.98		38.72		48.79		62.58		70.44		65.26		58.45		42.44		24.60		15.15		38.15
2020	13.19		13.17		28.19		37.88		52.94		65.10		71.02		67.73		54.33		38.63		33.92	l	19.18		41.94	a
2021	15.95		5.07		33.13		40.55	a	53.97		68.38		70.03		68.87		60.30		50.79		30.42		15.71		42.76
2022	0.39		2.52		23.18		33.50		53.98		64.18		67.81		66.76		58.65		45.69		29.77		11.65		38.17
2023	15.15		12.18		19.82		36.05		57.63		67.32		66.79		65.98		62.62		46.45		30.28		28.39		42.39
2024	15.18		26.74		28.18		41.59	h	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	23.37	i
Period of Record Statistics
MEAN	7.72		11.63		24.79		40.39		53.50		62.96		68.02		65.68		56.94		45.40		29.08		14.03		39.91
S.D.	6.29		6.48		5.44		4.07		3.51		2.86		2.55		2.71		2.78		3.88		4.50		5.98		1.87
SKEW	-0.17		0.07		0.14		0.08		0.00		-0.25		0.10		-0.12		-0.06		-0.14		-0.01		-0.02		0.11
MAX	21.88		27.91		36.87		49.88		63.02		69.38		73.93		72.18		63.33		56.89		40.02		28.39		45.80
MIN	-9.66		-5.88		10.19		30.85		43.24		55.10		60.78		59.52		49.34		33.77		19.52		1.27		33.91
YRS	103		102		99		103		118		126		123		122		119		104		103		103		91