WILLMAR WWTP, MN

Average of Average Temperature (Degrees Fahrenheit)

(219004)

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	-----	z	19.79		36.93		54.19		70.53		72.27		66.81		62.16	k	44.50	b	28.25	d	9.24	h	49.16	d
1894	5.61	d	12.67	d	31.52	c	46.14	b	56.86	b	70.17		73.24		69.81		60.75	d	45.61		24.90	f	22.40		44.98	a
1895	-0.59	h	4.86	c	28.08	e	51.15		56.92		64.07		68.13		67.16		61.48	d	40.77		28.02	c	17.78	b	44.40	a
1896	13.02	f	18.72	b	21.79	b	44.35		61.38	b	66.62		68.56		67.53		55.10		42.50		16.57		20.35		43.95	a
1897	6.29		13.15	d	18.48	b	44.07		55.31	b	62.75		72.05		64.45		65.22		49.71		26.43		12.40		40.86
1898	20.16		15.98		32.94	n	47.28	e	56.15	a	66.68		70.35	a	67.66		59.77		42.60		25.72		12.76		44.10	a
1899	10.94		4.34		14.22	b	43.69	a	55.19		65.56	c	70.76		68.68		56.70		48.23		38.22		17.76		41.19
1900	18.34		6.58	b	22.25	e	50.14	a	60.12	a	66.58		69.69		74.84		59.74	e	55.56		25.15		18.03		43.92
1901	13.02		10.02	b	28.89		47.38		58.73		65.57		75.08		70.95		56.26	g	48.97		28.63		12.29	b	41.77	a
1902	16.85		18.46	c	33.66		43.79	a	58.23		62.18	b	69.42	g	-----	z	-----	z	-----	z	-----	z	-----	z	38.86	f
1903	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1904	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1905	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1906	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1907	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1908	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1909	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1910	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1911	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1912	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1913	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1914	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1915	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1916	-----	z	-----	z	-----	z	41.68		54.53		61.22		76.76		69.03		58.00		45.79	b	31.77		8.91	b	49.74	c
1917	6.18		3.77		24.79		40.68		53.11		61.70		72.05		65.80	a	58.83		38.48		37.18		8.15		39.23
1918	2.19		16.04		38.37		43.15		59.44		65.62		70.16		69.08		54.14	a	49.66		35.60		24.69		44.01
1919	20.11		14.87	a	28.98	a	44.97		56.31		68.22		72.65		68.19		62.83		42.05		24.32		10.00	b	42.79
1920	6.05		15.17		28.89	d	36.95		55.10		63.68		68.29		65.71		61.55		52.92		29.35		19.76		41.95
1921	18.79		21.71		31.95		47.33		57.05	a	70.68		73.08		67.42	a	59.53	a	47.89		21.83	a	18.39		44.64
1922	10.82		4.73		27.68	a	43.32		58.38	a	66.93		66.35		69.65		63.53		50.02		36.05		14.69		42.68
1923	12.82		7.78	a	20.19		41.12		55.66		67.27		72.82		66.15		60.58	f	44.37		33.88		23.93	a	40.54	a
1924	4.94	f	19.30	a	26.65		40.97	a	46.60		60.17	a	65.92	a	64.92		53.65		49.85		28.97		4.44		41.95	a
1925	8.20	a	19.38		33.10	a	51.03		52.24		64.38		67.45		69.79		60.57		34.10		28.22		12.32	k	44.41	a
1926	14.69		21.55		26.00		42.58		58.33	a	61.77		71.24		67.71		55.80		44.84		26.30		12.40		41.94
1927	14.18	a	19.32		33.48		45.15		52.67	a	63.92		66.92	a	65.23		61.80		49.94		27.55	a	4.87		42.09
1928	15.15	a	20.20	a	31.44		38.93		60.34		61.30		70.84		69.15		57.05		48.65		34.83		24.57	a	44.37
1929	0.32		7.73		32.71		45.00		53.03		64.77		72.42	a	70.18	a	57.82		48.35		26.95		15.37		41.22
1930	3.72	a	26.36		30.66		48.02		57.18		66.37		72.65	d	71.95		59.75		45.60		33.84	b	21.73		44.82
1931	24.10		29.59		29.89		45.42		54.48		72.03		74.31		68.87		67.12		52.21		35.43		24.42		48.16
1932	13.98		18.71	a	20.81		45.28		58.15		69.93		72.81		70.02		58.84	a	45.71		27.62	a	13.18	a	42.92
1933	19.44		11.67	a	29.31		41.77		56.32	c	75.37		74.84		68.52		66.37		45.68	a	28.00		13.58		44.24
1934	17.38	a	18.62		27.27		43.47		67.71		70.55		74.15		67.05	a	54.70		50.98		35.78		12.87		45.05
1935	8.24		25.59		32.50		41.35		52.71		62.02		77.11		70.13		59.90	a	45.82		24.35		15.02		42.89
1936	-1.84		-5.82	a	27.53		38.52		62.63		65.97		78.61		72.60		63.75		44.79		27.20		18.90		41.07
1937	-0.87		9.72	a	24.81		42.55		58.92		64.73		73.76		75.29		61.73		44.32		29.25		14.05		41.52
1938	9.26		16.71		34.69		46.25		54.19		67.23		72.05	a	73.39		62.13		55.37		29.86	a	19.55		45.06
1939	17.40	a	8.86		29.21		42.09	a	63.16		67.90		72.79		69.95		63.33		46.16		36.27		27.79		45.41
1940	4.03		18.34		22.65		42.58		56.44		67.63		74.71		67.65	a	64.57		53.48		25.65		19.92		43.14
1941	15.02		12.20		27.16		50.73		62.97		66.83		72.90		70.73	a	61.38		49.05		34.60		23.87		45.62
1942	18.76		18.36		34.37		50.88		53.85		64.23		69.53		69.60		56.52		48.61		32.07		13.21		44.17
1943	2.27	a	15.20		21.98		45.32		53.69		68.30		73.92		71.10		57.55		48.58		27.93		22.34		42.35
1944	25.70	a	17.62		23.74		41.15		60.60		69.03		70.56		70.03		61.07		51.11		35.57		19.50		45.47
1945	12.18		15.57		38.02		43.05		52.27		60.53		69.66		70.58		58.67	a	47.55		29.38		8.69		42.18
1946	11.98		14.64		38.61		50.22		54.00		66.53		71.68		67.05		59.52		47.89		29.98		17.77		44.16
1947	20.50		11.89		27.21		40.98		53.00		63.52		72.26		76.44		61.43		57.13		24.32		14.58		43.60
1948	6.26		10.78		23.79		48.52		57.69		66.48		74.40		70.74		66.10		49.82		31.72		16.02		43.53
1949	10.34		9.66		28.00		45.97		61.52		69.28		74.23		73.06		57.62		49.71		36.07		17.10		44.38
1950	2.55		14.88		22.94		35.03		54.24		67.70		69.03		65.98		61.58		51.40		26.17		9.81		40.11
1951	5.71		16.71		17.95	b	40.72		61.33	a	63.17		70.48		66.87		55.97	a	47.08	a	23.83		12.21		40.17
1952	8.34		20.05		21.44		47.28		58.79		68.93		72.82		68.58		62.92		44.44		33.91	a	21.42	a	44.08
1953	14.06		16.04		30.43	b	40.65		56.92		68.70		71.24		72.43	a	61.80		55.82		36.52		17.34		45.16
1954	5.45	a	29.36		26.69		45.05		52.73	a	69.48		73.29		68.82		59.63		46.94		37.55		21.97		44.75
1955	12.50		11.66		24.74		52.83		63.37		67.05		76.58		73.79		60.14	b	50.18		23.15		9.63		43.80
1956	9.05		11.16		24.29		40.40		57.56		71.82		68.55		69.29		58.37		55.44		32.08		22.53	a	43.38
1957	7.55		18.46		28.47		44.35		55.71		65.12		75.69		68.84		60.31	f	47.92	a	34.36	p	23.65	g	45.79	c
1958	20.27		13.07		30.44		47.00		60.69		61.75		68.73	a	71.35		62.45		52.44		34.33		14.05		44.72
1959	9.12	a	15.32		33.89		45.20		59.68		70.60		72.56		73.69		61.60		42.98		23.87		28.18		44.72
1960	12.35		14.71		17.55		43.95		57.76		64.82		72.24		71.35		62.07		50.31		34.18		17.45		43.23
1961	14.40		24.55		34.81		39.13		55.50		68.98		70.65		72.74		60.08		50.60		32.27		13.82		44.79
1962	9.40		12.93		24.76		42.12		60.39		65.97		68.24		70.13		58.45		52.60		37.13		20.69		43.57
1963	5.44		14.80		34.20	a	48.08		56.27		70.27		72.79		69.84		63.52		59.26		37.87		11.08		45.28
1964	19.81		23.84		23.81		46.98	a	61.87		68.85		75.21		67.73		60.20		49.71		32.78		11.61		45.20
1965	6.71		10.04		16.13		41.97		58.34		66.98		70.82		68.92		51.98		51.26		31.28	a	25.56		41.67
1966	0.84		13.66		35.13		40.23		54.03		67.98		75.47		67.37		60.95		48.89		27.90		15.85		42.36
1967	13.48		7.09		28.76		44.42		52.29		65.80		70.15		67.92		60.83		47.56		31.90		20.56		42.56
1968	13.08		13.91		38.55		48.05		53.39		67.53		70.55		70.11		60.80		50.58	a	33.68		15.16		44.62
1969	4.55		16.59		20.18		47.37		59.53		60.90		71.37		72.76		62.03		45.26		32.92		17.38	a	42.57
1970	2.71		14.18		22.79		43.07		58.06		70.30		73.47		70.94		61.43		48.16		30.33		15.87		42.61
1971	4.98		15.91		27.69		46.68		56.05		70.20		67.34		69.55		61.33		51.89		31.78		15.26		43.22
1972	5.84		9.41		26.52		41.17	a	60.32		67.37		69.50		70.35		59.32		45.47		31.05		10.77		41.42
1973	16.94		21.55		38.69		44.53		56.60		69.18		71.31		71.89		59.55		54.74		33.53		15.48		46.17
1974	10.06		15.00		28.00		46.97		54.37		67.05		75.77		66.50		57.90		51.05		33.22		22.19		44.01
1975	12.74		12.95		20.94		37.47		60.92		66.93		75.11		70.08		57.87		50.94		34.02		17.89		43.15
1976	9.81		26.10		29.76		50.15		57.40		70.30		73.76		71.92		61.07		43.02		25.07		10.50		44.07
1977	-2.52		21.34		34.11		52.72		66.32		68.13		73.24		66.39		61.15		48.13		29.52		12.73		44.27
1978	3.23		9.59		27.52		43.73		60.37		67.60		70.85		70.98		66.25		49.71		29.50		2.55	u	45.39	a
1979	-----	z	-----	z	24.65	e	39.92		53.98		67.00		71.29		67.44		62.90		47.61		30.82		24.92		49.05	b
1980	14.44		14.79		26.13		49.60		62.19		67.50		73.08		68.63		60.03		45.79		36.35		17.69		44.69
1981	16.76		21.86		37.50		49.57		56.92		65.83		70.82		67.87		60.27		46.58		36.65		13.65		45.36
1982	-2.00		13.43		27.18		42.13		59.05		60.00	b	70.07	b	67.69		58.43		48.00	a	25.88	a	22.13	a	41.00
1983	15.84		22.25		31.52		40.87		53.48		65.30		73.30	a	75.05	a	61.09	a	46.64	b	30.81	c	-1.16		42.92
1984	9.85	a	24.40		22.19		45.23	b	53.91	b	67.10	a	70.90	a	71.10		53.31	c	49.07	a	32.19	d	14.93	b	42.85
1985	6.32	a	12.64	c	34.55	b	48.37	d	62.12	a	62.72	a	70.17	a	63.80	c	55.94	e	43.50	b	20.87	d	4.10	b	40.42
1986	14.60	a	11.80		31.17	a	47.43		58.05		69.25		72.73		66.19		58.80		48.05	a	25.98		22.97		43.92
1987	18.89		30.77		35.15		53.28		62.35	a	71.05		73.94		67.58		61.13		42.58		37.35		21.39		47.95
1988	6.48		9.47		31.53		45.43		65.73	a	74.12		76.08		72.97	a	60.53		43.48	b	29.98		17.32	a	44.43
1989	17.81		4.94	a	23.45	a	42.60		57.44		66.78		75.03		69.75	a	58.98		48.18		27.69	a	7.97	a	41.72
1990	23.11		19.11		31.66		45.55		54.60		68.21	a	69.95		68.03	a	62.85		45.58		34.63		12.77		44.67
1991	9.03		22.46		31.11		47.12		60.87	a	71.10		71.05		70.32		58.58		45.00		23.00		17.61		43.94
1992	19.68	a	25.22		32.23		40.28		60.37	a	65.16	a	64.34		64.76		57.85		45.87		28.48		15.84		43.34
1993	9.29		12.14		25.52		42.12		56.53		63.00		68.64	b	69.16		53.92		44.93	a	27.30		17.95	a	40.87
1994	-0.39		6.79		30.45		43.43	a	60.47		68.22		68.92		66.57	a	62.65		49.39		35.08		19.90	a	42.62
1995	13.74		15.39	a	30.55		39.23		55.02		70.73		71.19		71.71	b	58.03	a	45.56		24.55		16.35	a	42.67
1996	4.02		13.11	a	21.58		38.66	a	53.05	c	67.75	b	69.35		68.16		59.33	c	47.52		22.22	a	10.45		39.60
1997	5.35	a	16.98	a	24.45	a	41.34	b	51.84	b	70.67		70.11	c	67.55		62.74	c	49.32		25.50	a	23.90		42.48
1998	13.08	a	28.20		28.73	a	48.47		63.34		64.02		71.85		70.73		65.64	a	49.97		33.90	a	22.94		46.74
1999	8.48		-----	z	32.25	c	45.97		59.33	a	66.70		73.82		68.48		58.05	a	46.78	b	40.29	a	23.44		47.60	a
2000	11.31		22.40		37.00	c	43.53		59.87		64.88		71.00		70.48	a	58.48	a	49.90		29.12		3.90		43.49
2001	15.15	a	5.68		22.47	a	44.53	a	59.31		67.50		73.21		71.86	c	59.95		46.94		42.91	a	22.62	a	44.34
2002	20.16		27.21		18.81		41.87		53.00	b	70.12	a	74.95	b	68.53		62.66	a	39.92		30.58		22.84		44.22
2003	12.20	a	11.04		26.55		46.57	b	55.35	a	65.48	b	71.22	a	71.59	b	58.88	b	49.58	a	27.72	a	21.55	a	43.14
2004	9.18		16.14		33.71		47.20		53.93	a	63.52		69.50		63.50		65.08		48.79		35.95		20.67	d	43.93
2005	11.11		22.18		28.14	b	48.86	b	54.13		70.86	a	73.17	a	67.98	e	63.60		50.08	a	34.59	b	16.10		45.07
2006	24.12	a	13.63	a	31.08	a	50.03		59.56		68.82		75.24		70.24		58.41	a	44.61		34.47		25.85	a	46.34
2007	17.42		9.71		33.42		43.43		61.18		70.17		74.00		68.81		61.82		51.08		32.05		12.27		44.61
2008	8.66		12.10		24.87		41.32		54.53	a	66.03	a	72.50		69.73		60.78		47.37		32.27		10.48		41.72
2009	3.82		16.55		27.77		44.35		57.47		66.07		67.65		67.10		64.50		40.89		39.93		14.26		42.53
2010	9.53		12.20		35.50		52.38		58.02		67.08		73.05	j	-----	z	-----	z	-----	z	-----	z	-----	z	39.12	f
2011	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
2012	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	10.95		15.45		28.15		44.57		57.38		66.85		71.84		69.33		60.23		47.93		30.74		16.59		43.46
S.D.	6.47		6.46		5.49		3.85		3.61		3.09		2.63		2.55		3.01		3.97		4.85		5.75		1.72
SKEW	0.04		0.00		-0.14		0.13		0.24		-0.11		-0.16		0.25		-0.22		-0.15		-0.15		-0.38		-0.03
MAX	25.70		30.77		38.69		53.28		67.71		75.37		78.61		76.44		67.12		59.26		42.91		28.18		48.16
MIN	-2.52		-5.82		14.22		35.03		46.60		60.00		64.34		63.50		51.98		34.10		16.57		-1.16		39.23
YRS	99		101		103		105		105		105		103		103		99		103		101		99		89