MILBANK 4 NW, SD

Average of Average Temperature (Degrees Fahrenheit)

(395536)

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
1893	-----	z	13.67	y	23.53		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	10.75	c	17.14	j
1894	6.90	a	16.39		33.24		45.83		59.16		72.05	a	75.81	b	71.22	a	52.78	u	46.05		26.06	c	24.29	b	43.36	a
1895	3.09	o	9.98	c	31.17	b	46.87	o	57.15	a	64.19	a	67.33	e	67.12	a	60.25		41.33	h	28.00	c	17.29	b	44.72	c
1896	-----	z	17.30	d	16.44	d	43.98		60.82	a	66.28		68.55		69.21		56.86	b	-----	z	16.40	a	20.76	b	43.66	b
1897	5.37	d	13.22	e	19.98	d	44.53		56.90		62.58		71.73		65.02	a	66.64	b	49.98	b	27.32		14.12	g	43.93	a
1898	20.02		17.32	c	30.63	d	44.18		54.94		65.70		69.11		67.63		61.97		41.84		26.72	c	18.00	c	43.17
1899	12.93	c	6.29	b	14.42		43.79	a	55.55		64.72		71.58		68.55		57.13		49.73		40.13		19.59	b	42.03
1900	17.38	b	4.69	b	-----	z	49.43		59.90		66.88	a	69.35		75.29		60.70		55.58		29.72		24.35		46.66	a
1901	17.13	a	11.69	b	31.26		46.17		59.74		65.14	e	76.98		70.84		57.60		51.83	b	29.46	b	17.77		44.64
1902	19.50		17.86		35.74	b	44.08		58.24		61.52		70.73		66.79		56.40		49.47	a	33.67		12.92	e	43.91
1903	11.87	d	10.68		28.45		45.43	b	57.92		64.27		68.27		66.43	b	60.30	b	-----	z	-----	z	-----	z	45.96	c
1904	-1.45	t	2.94	d	29.07	b	40.28		57.50	b	62.67		66.08		66.10		58.38	b	49.18		40.00		16.56		44.43	a
1905	5.31		9.46	a	34.90		42.23		52.13		63.37		67.39		70.52		63.20		43.87		35.63		21.13	a	42.43
1906	19.18		16.25		19.82		46.98	a	54.47	a	63.28		68.63		69.23	a	63.52	d	46.64	b	29.73	d	14.61		42.70
1907	0.27		16.52	b	30.26		34.60		45.37		62.58		67.94		66.73		55.82		45.71		31.68		21.47	a	39.91
1908	21.00	a	16.75	a	24.90		44.82		54.29		62.57	a	70.30	a	65.27	a	65.53		45.74		35.57		16.65		43.62
1909	10.89		13.68		28.22	a	36.35		53.69		65.53		69.35		72.73		59.95		44.69		31.02		8.95		41.25
1910	11.98	c	10.05		43.08		47.28		52.31		66.28		70.42		66.31		58.42		52.97		-----	z	16.76		45.08	a
1911	4.91	c	16.80		33.83	a	42.35		59.79		70.45		69.13		64.61		58.55		43.74		18.67		21.15		42.00
1912	-3.10		14.39	a	21.61		46.33		57.00		62.28		69.10		64.95		55.65		47.58	a	35.66	b	22.63		41.17
1913	10.10		9.44	a	21.32	a	45.75		53.00		67.92		67.52		70.94		59.18		41.31		37.53		26.02		42.50
1914	16.68		4.85	b	27.45	c	41.31	a	56.22	a	65.29	a	72.47		66.48		60.25		52.65		36.83	c	8.55		42.42
1915	8.70	a	20.52		24.76		52.08		51.94		60.64	a	65.60		63.82		58.92		49.29		33.87		18.18		42.36
1916	2.03		9.74		24.97	a	41.68		53.58	a	60.62		76.82		69.02		57.63		43.73		31.14	a	7.52	b	39.87
1917	6.83	a	3.34		25.85		39.98	a	52.74		61.06	d	71.67	b	66.34		57.75		36.67	a	37.12		5.73		38.76
1918	1.60		13.75		36.29		40.85		55.76		-----	z	68.13		69.85	d	54.72	a	51.18		35.58		22.42		40.92	a
1919	22.02		15.07		28.74		44.70		57.18	a	68.37		73.58		69.89		62.47		40.69		23.43		13.84		43.33
1920	9.77		18.03		30.92		37.07		56.48		65.48		69.94		68.16		63.65		54.32		31.00		21.02		43.82
1921	21.85		25.98		31.43	a	47.98		57.19		71.85		74.13		70.35		61.80		49.95	a	22.46	b	22.55		46.46
1922	13.79		7.98		31.03	a	45.97		60.52	a	69.68		69.88	a	73.37		64.48		52.05		37.08		-----	z	47.80	a
1923	16.63		10.94	b	23.39		44.52		56.69	e	69.85		76.08	a	68.19		64.17	a	47.95		38.74	a	28.91	b	45.51
1924	10.82	c	22.97		29.22	b	46.18	b	50.31		63.07	a	69.08		69.72	a	58.27		55.80	a	32.92		7.22	b	42.96
1925	12.09	c	22.33	a	34.79	b	52.90		54.85		63.97		69.43	a	72.95		65.00	b	36.92	a	32.46	b	18.76		44.71
1926	15.52		23.81	d	27.34		45.23		63.03		63.63		72.32		68.24		56.48		46.60		26.23	b	14.48	a	43.58
1927	15.79	c	21.80		34.23	a	45.89	b	52.48	f	62.70		66.89		64.85		61.31	a	-----	z	25.45	a	3.27	c	40.22	b
1928	17.54	c	20.64	a	32.02		37.64	a	60.33	p	60.97		71.55		69.29	b	58.48		47.77		36.24	a	26.03	b	43.47	a
1929	1.23	a	6.93		34.60		45.52		52.65	a	65.48		73.22	a	69.87		55.53		46.31		25.47		14.50	b	40.94
1930	2.43	a	26.68		28.16		45.03		52.43	a	63.13		74.52	a	72.73		60.64	a	44.87	a	31.77		22.21		43.72
1931	24.03		30.16		29.62	a	48.27	b	56.05	t	72.62		76.61		69.58		67.52		52.69	b	36.68	b	22.83	j	50.78	b
1932	16.50	s	19.80	a	22.35	a	45.43		58.50		68.82		73.03	b	71.40		59.77		47.83	e	30.35		16.42	a	46.70	a
1933	21.90		15.32		32.55		44.83		57.58		74.21	r	80.05	t	72.23		67.60	a	48.48	a	31.93	a	17.05		40.95	b
1934	22.68	a	22.80		30.52		47.25		70.39		72.15		77.63		71.92	a	57.78	a	54.60		36.88		16.21		48.40
1935	9.65	a	28.46		34.50	a	41.80	b	52.19		63.42		79.35		72.82		61.15		45.96	e	23.72	a	17.72	b	44.23
1936	-2.90		-5.59		31.55		40.23		65.76		69.97		83.56		76.45		65.82		46.65		30.30		21.74	b	43.63
1937	2.02	a	13.30	a	27.60		42.62		60.52		67.00		75.87		77.60		63.40		47.10		30.82		15.60		43.62
1938	11.60		16.30		37.73	a	47.62		55.63		68.75		73.89		76.56		64.70		56.21		29.42		22.55		46.75
1939	18.73		7.91		32.32		44.95		65.21		69.43		75.00		72.19		65.53		48.77		39.67		31.08	a	47.57
1940	6.12	a	18.86		25.77		43.37		58.32		68.03		76.52		68.92		66.98		55.40	a	26.50		24.60		44.95
1941	16.18		16.45		30.39		49.97		63.92		68.55		75.63		72.73		63.30		50.80	a	35.95		27.21	b	47.59
1942	22.92		20.89		36.08		52.67		55.50		65.82		71.68		71.50		57.22		50.31		35.13		14.90		46.22
1943	4.63		20.39		24.89		48.68		55.45		68.42		75.84		72.39		60.70		51.13		31.48	a	24.73		44.89
1944	28.29		19.79		24.40		42.23		61.92		69.10		72.50		71.11		62.10		52.87		35.33		21.84		46.79
1945	16.52		20.30		40.53		43.73		53.50		62.70		71.69		70.81		60.40		50.68		30.20		11.73		44.40
1946	15.12	a	16.29		40.50		52.60		55.27		68.47		73.50		69.52		60.88		48.55		31.98		20.79		46.12
1947	23.73		14.54		28.74		42.57		54.15		64.72		73.63		78.03		63.33		57.68		26.30		17.19		45.38
1948	10.68		14.63	b	24.50		48.95		58.95		66.65		74.89		72.82		66.80		51.10		34.66	a	20.56		45.43
1949	10.32		13.09		30.52	a	49.42		62.35		69.57		74.52	a	75.37		58.53		50.60	a	39.80	b	18.31		46.03
1950	1.16		17.48		25.92		36.55		54.39		69.57		69.66		66.97		62.80		52.43	b	28.33		13.79		41.59
1951	8.53	a	20.46		18.21		41.45		60.60		61.88		70.90		67.79		56.16	a	47.00		25.97	a	13.05		41.00
1952	11.18		21.93		22.06		48.28		57.93	a	69.98		73.05		70.76		65.55		46.55		34.97		22.73		45.41
1953	16.31		20.77		31.24		41.18		56.84		68.17		71.35		72.50		62.02		56.29		38.43	b	21.15		46.35
1954	7.08		33.07		27.69		45.62		52.92	a	66.83		73.24		69.87		59.93		46.45		39.13		24.26		45.51
1955	16.44		11.55		25.98		53.80		64.37		66.32		76.45		74.77		61.53		52.08		23.32		9.45		44.67
1956	9.85	a	13.40		26.08		39.32		58.00		72.37		68.97		69.87		59.40		56.10		32.83		24.82		44.25
1957	6.78	a	19.93		31.19		45.62		55.61		65.81	a	76.21		69.42	a	58.78		48.30	a	33.77		27.03		44.87
1958	22.13	a	15.96	b	29.76		45.82		58.55	l	61.60		67.22	h	71.94		62.98		52.04	f	32.48	c	14.83	d	39.72	c
1959	8.42	a	13.65	b	34.30	c	-----	z	-----	z	-----	z	-----	z	75.82	a	62.79	d	42.56		24.59	b	29.70	c	36.48	d
1960	14.29	b	16.18	a	18.45	a	43.55	h	57.58		64.04	b	72.18		72.02		63.12		49.68		34.73	f	17.61		44.51	b
1961	14.80	c	23.05		33.84	l	40.05	a	54.77		70.47		71.16		75.77		61.42	d	53.12	e	32.28		13.05	a	46.36	a
1962	10.73		13.21	b	24.45	a	43.17	a	59.76		66.68		69.24		72.10		59.83		52.56		38.33		21.90		44.33
1963	7.53	a	17.98		36.00	a	48.65		57.43	a	71.22		72.55		70.68		63.57		58.65		38.05		12.48		46.23
1964	20.97		23.79		23.26		47.45		61.29		67.52		75.02		68.23		59.38		50.61		31.47	a	11.46	d	45.04
1965	7.03		13.41	a	18.07	a	43.72		58.24		67.27		72.00	b	69.66		50.77		52.32		32.92		27.63		42.75
1966	1.53	a	13.66		35.53		40.30		55.13	a	67.82		77.32		68.03		60.25		50.32		28.35		19.53		43.15
1967	15.79		10.61		33.11		45.08		53.47		65.77		70.60		68.55		62.27		48.42		32.60		20.22	b	43.87
1968	14.68		13.71	a	40.11		47.38	a	54.39		68.07		71.55		70.39		61.66	a	49.42	a	33.90		14.24		44.96
1969	3.61		16.34		20.40	a	46.67		60.13		61.12		71.75	a	73.82		62.80		43.83	a	33.83		20.34		42.89
1970	4.43	a	18.12		25.79		43.58		60.00		70.28		74.10	a	72.98		62.80		48.81		30.00		16.21		43.93
1971	6.26		17.34		31.32		48.12		56.00		72.45	a	69.42		72.21		62.10		51.31		31.55		17.05		44.59
1972	9.03		11.40		28.73		42.67		60.16		67.55		71.18		72.94		60.90		45.94		31.38		11.44		42.77
1973	18.03		-----	z	38.66		45.03		57.68		69.70		73.08		75.24		59.95		55.00	a	32.58		15.58	a	49.14	a
1974	13.22	d	17.72	a	28.88	a	47.15		55.80	a	67.88	a	77.79		69.03	a	59.25		51.32		34.24	a	24.23	a	45.54
1975	16.62	a	14.44	a	24.95		37.32		60.38	a	68.42		77.61		71.76		59.38		52.63		34.68		19.56		44.81
1976	11.14	c	25.97		28.18		48.23		55.18	a	70.07		73.98		74.34		60.53		42.90		26.62		13.63	a	44.23
1977	1.45		21.07		32.55		50.18		65.29		68.08		72.60		64.70	a	60.54	b	47.05		28.72	a	12.13		43.70
1978	1.17	a	7.46	b	33.36	i	41.78		57.16		64.71	a	69.50		68.50	a	63.92		46.94		28.25		13.93	a	42.12	a
1979	-1.71		1.57	a	21.92		36.96	b	49.89		63.30		69.55		65.71		61.05		44.82	a	28.95	a	24.53	b	38.88
1980	13.05	a	12.59		21.81		46.83		59.50	a	65.87		70.98	a	67.52		58.07		43.90		35.14	a	16.81		42.67
1981	16.12	a	21.04		34.39		48.36	a	54.77		64.71	d	70.47		69.81		58.47	a	45.98	a	37.11	c	13.42		44.55
1982	-5.65	k	15.76	k	27.48	e	41.28	a	-----	z	-----	z	71.50	a	67.50	g	57.56	d	46.24	j	27.59	c	-----	z	45.08	g
1983	-----	z	25.21	g	30.53	a	39.60		52.43	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	40.86	i
1984	13.37	e	-----	z	22.10	g	42.82	e	54.96	f	65.15	d	69.71	g	71.65	k	53.42	l	49.95	l	31.59	n	13.25	g	40.45	i
1985	8.50	e	12.38	b	33.32	a	-----	z	-----	z	-----	z	-----	z	64.21	e	55.87	d	44.96	d	-----	z	8.33	g	36.54	f
1986	-----	z	11.28	a	32.09	h	45.21	b	57.63	a	68.14	b	71.79	c	65.40	a	58.28		47.00	d	26.12	f	24.41	c	49.91	c
1987	20.05	c	31.30	a	32.22	a	51.02		61.14	b	69.71	a	73.22	d	67.63		61.00	f	43.87	a	35.65	d	24.14	b	46.36	a
1988	9.55		11.91	b	31.35		44.88		63.41	b	73.96	b	75.20	c	71.74		59.78		44.10		30.47	a	20.80	a	44.76
1989	18.86	b	7.59	a	21.95	a	43.52	a	56.94		65.00	c	75.31	b	69.07	a	59.41	b	48.71	b	25.45	j	7.47	a	43.07	a
1990	25.61	d	19.23		32.95	c	44.27		54.15		-----	z	68.12	b	67.07	d	63.09	b	45.88	b	33.93	a	17.20	c	42.86	a
1991	-----	z	-----	z	30.79		47.59	n	59.70	d	70.21	a	71.39		71.19	b	-----	z	-----	z	-----	z	24.13		54.57	f
1992	21.80	c	27.20	a	34.34		40.40		60.03		64.76	a	64.19		64.62	a	58.67	a	46.13	d	27.41	a	15.12	a	43.72
1993	8.05	c	11.65	a	29.19	d	42.33	a	55.67	b	62.59	b	67.77		69.27		53.95	b	44.90		26.63		16.78	b	40.73
1994	-0.35		6.98		33.35		44.52		60.93	b	67.83		69.22	a	66.73		62.62		50.27		35.40	e	22.94		43.37
1995	14.55	c	18.61		28.82	a	38.91	a	54.82	a	69.39	b	71.73		72.26		59.52	a	46.02	a	25.36	a	15.73	c	42.98
1996	4.98	e	15.98	d	21.63	a	40.10		52.53	a	68.57		-----	z	69.22	d	58.87		-----	z	15.46	f	-----	z	41.49	d
1997	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1998	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1999	13.81	j	26.13	a	-----	z	45.33	a	57.97	a	66.87		74.77	a	69.92		58.97	a	45.55	a	39.97		24.50	c	51.00	b
2000	12.50	a	25.00	b	36.47	m	43.46	b	59.48		65.63		71.40	a	70.33	a	58.46	c	49.45	c	26.93		3.71	c	44.22	a
2001	18.08		6.60	b	23.92	a	43.36	b	59.24		68.17		74.31		73.52	a	60.11	c	46.68		42.82		23.05		44.99
2002	20.24	b	27.67	b	18.32		42.43		51.90		70.48		75.43	a	69.40	a	64.79	a	40.13		31.78	a	24.52	d	44.76
2003	13.08	a	12.15	a	28.77		46.24	a	54.32		65.73		73.11		72.44		60.05		47.90	g	28.62	d	22.65		43.38	a
2004	9.47	a	18.25	a	35.05		46.62	a	53.37	a	63.53		69.94		64.58		64.13		48.50		36.68		21.97		44.34
2005	10.23		24.13	a	31.08		49.00	a	55.60		70.02		73.47		69.97		65.72		48.79		35.78	g	20.65	n	49.80	b
2006	26.61	c	19.05	f	31.54	c	51.84	a	58.66	b	67.98	b	76.34		71.89		57.40	a	43.13		32.26	c	26.48	d	49.47	a
2007	19.73	r	9.38	c	34.45	b	40.07	a	60.67	a	68.40		72.85		67.53	a	61.64	a	50.63		38.42	f	-----	z	51.74	c
2008	-----	z	13.52	h	25.12	b	39.55		52.89		63.60		70.24		68.24		59.73		46.21		30.93		8.85	a	46.54	b
2009	4.68		15.72	a	24.40	a	40.47	a	55.40		63.55		65.27		65.38	a	-----	z	-----	z	-----	z	-----	z	41.86	d
Period of Record Statistics
MEAN	12.01		15.97		28.90		44.49		57.08		66.59		72.11		69.98		60.68		48.47		31.83		18.34		43.89
S.D.	7.20		6.74		5.64		3.90		3.83		3.15		3.31		3.18		3.15		4.26		4.92		5.88		1.95
SKEW	-0.01		-0.07		-0.15		-0.01		0.38		0.03		0.29		0.20		-0.04		-0.08		-0.37		-0.33		-0.38
MAX	28.29		33.07		43.08		53.80		70.39		73.96		83.56		78.03		67.60		58.65		42.82		31.08		48.40
MIN	-3.10		-5.59		14.42		34.60		45.37		60.62		64.19		63.82		50.77		36.67		16.40		3.27		38.76
YRS	103		107		108		109		106		107		107		111		108		102		101		103		75