ALTON, UT

Average of Maximum Temperature (Degrees Fahrenheit)

(420086)

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
1915	-----	z	-----	z	-----	z	-----	z	61.24	b	71.96	f	75.87		77.80	a	68.30		65.26		47.47		39.00	a	62.13	e
1916	34.17	a	46.93		51.23		58.90		66.23		77.40		76.94		71.35		69.37		54.61		48.33		36.42		57.66
1917	33.94		39.11		42.55		52.57		56.58		76.00		83.29		78.55		69.83		65.94		54.25	b	50.32		58.58
1918	38.93	a	44.50		49.90	a	55.70		64.23		80.20		73.47	a	71.41	d	73.07		60.87		44.17		37.61		57.84
1919	40.00		37.46		44.74		59.63		71.00	p	78.62	a	78.10		80.83	a	71.10	a	52.84		50.69	d	42.74		57.89	a
1920	41.19		42.00	a	43.26		49.03		64.00		72.30		80.10		76.73	a	69.23		57.71		48.43	b	37.94		56.83
1921	39.23		44.29		51.07	a	54.17		61.29		74.67		79.03		74.58		71.60		64.97		54.11	b	45.06		59.50
1922	32.80	a	38.04		42.63	a	49.70		65.03		77.39	b	80.93	c	75.32		73.75	b	60.48		46.27	d	44.48	h	58.40	a
1923	43.58		38.56	a	44.32		55.07		66.80	a	72.34	a	78.72	m	73.90		68.30		56.33	a	49.40		40.71		55.39	a
1924	38.07	b	48.00		38.87		53.53		68.32		76.77		76.58		78.16		72.23		60.13		51.00		36.53	a	58.18
1925	35.77		42.93		47.45		54.10	a	67.87	a	64.24	a	75.39		70.32		65.93		50.03		49.00	b	47.10		55.84
1926	41.27	a	45.70	a	53.20	a	56.38	a	65.30	a	76.67		79.03		77.13		70.83	a	65.14	c	52.41	a	36.52		59.96
1927	41.71		40.82		42.66	b	55.83		66.67	a	75.03	a	79.70	a	74.20	a	67.00		62.35		50.17	a	34.53	a	57.56
1928	43.30	a	40.90		48.61		55.10		66.73	a	75.67		79.81		77.37	a	73.56	e	62.38	b	44.33	c	37.94		58.81
1929	36.90		33.68		44.00		51.66	a	66.27	a	75.00		78.87		75.29		67.20		61.03		52.27		49.06		57.60
1930	33.13		46.52	a	47.26		63.37		52.03	b	75.03		76.50	a	73.77		68.50		59.48		47.87		40.84		57.03
1931	40.73	a	40.04		49.16		58.21	b	67.30	a	75.59	a	82.81		79.10		71.37		61.40	a	42.00		33.16		58.41
1932	27.73	a	35.86	a	42.84		55.67		63.60	a	72.50		77.81		77.13		72.93		59.90		55.23		31.97		56.10
1933	31.81		32.93		47.84		51.27	d	57.97		77.10		80.29		77.54	c	73.27		65.23		54.69	a	45.90		57.99
1934	42.16		48.29		61.70	a	63.73		73.06		72.47		81.90		79.03		73.90		67.32		50.23		40.94		62.89
1935	40.71		43.08	d	41.71		56.07		60.94		77.33		79.00		77.94		71.97		60.60	a	47.17		40.42		58.08
1936	39.97		38.17		46.77		60.37	c	70.00		77.45	a	78.39	c	76.84		70.21	a	59.68		51.60		39.06		59.04
1937	24.00	b	36.46		42.39		52.83		70.19		73.67		76.82	c	79.74		72.93		62.39		52.97		40.11	d	57.04
1938	38.94		34.25		40.73	a	57.87		61.81		73.60		77.26		77.00		73.17		59.39		43.80		41.16		56.58
1939	36.61		29.93	a	45.48		60.77		66.03		74.86	a	81.26		80.43	c	67.83	a	59.42		54.90		50.16		58.97
1940	38.16		37.07		51.29		57.82	b	70.03		79.00		81.03		81.19		67.43		61.10	a	45.43		41.52		59.26
1941	37.97		42.86		45.32		47.57		67.23	a	71.31	a	82.06		78.39		70.87		54.40	a	52.67		39.65		57.52
1942	39.90		34.71		44.16		56.03		65.65		76.97		84.13		81.97		77.00		62.03	a	53.17		46.26		60.16
1943	39.97		42.61		46.45		60.97		67.81		71.17		81.13		77.52		75.63		62.58		54.93	a	38.14	j	61.89	a
1944	36.13		35.14		40.97		50.30		63.94		69.40		79.65		79.84		74.00		63.29		43.93		43.45		56.67
1945	41.00		40.43		40.81		51.77		64.87		70.00		78.74		75.45		72.00		60.65		47.77		39.23		56.89
1946	35.94		40.04		48.00		61.87		64.00		77.57		79.87		76.00		73.87		53.45		42.63		43.13		58.03
1947	37.74		47.93		49.10		56.97		69.06		70.10		81.10		76.55		76.07		61.26		43.30		37.19		58.86
1948	42.35		37.31		38.16		55.83		68.03		72.63		81.35		78.48		75.17		61.42		45.67		38.32		57.89
1949	27.23		34.86		42.77		60.31	a	63.52		70.83		79.77		79.16		74.33		57.55		59.87		37.65		57.32
1950	31.23		43.43		49.32		59.57		64.97		75.97		79.58		80.94		71.70		70.10		58.27		53.55		61.55
1951	40.84		44.32		48.00		57.53		65.10		74.87		84.90		77.43	a	75.77		61.13		48.53		38.77		59.77
1952	36.68		40.72		38.42		55.83		67.68		72.93		80.61		80.71		75.80		73.06		47.73		40.42		59.22
1953	47.39		45.82		51.87		56.23		58.06		77.07		83.29		78.19		78.63		62.87		53.27		44.13		61.40
1954	42.61		51.61		44.94		63.37		69.58		73.87		82.84		79.68		73.07		66.00		57.77		41.48		62.23
1955	37.06		38.00	a	47.84		56.50		-----	z	74.00		80.74		80.97		77.03		69.06		51.67		44.81		59.79	a
1956	45.63	a	40.07		53.90		57.63		68.60	a	81.47		82.74		81.39		81.03		64.52		55.45	a	46.35		63.23
1957	37.21	b	49.14		49.29		54.37		60.06		76.83		81.16		80.29		77.97		58.42		44.70		45.84		59.61
1958	43.45		46.07		41.29		53.13		71.35		77.57		82.29		85.10		72.57		65.81		51.60		52.58		61.90
1959	43.77		40.18		51.27	a	63.10	a	66.77		81.79	a	88.16		81.00		72.30		66.32		54.63		45.06		62.86
1960	34.87		36.76		52.29		61.17		69.19		82.70		88.10		85.74		77.63		60.65		50.80		42.52		61.87
1961	46.97		45.82		48.00		59.17		68.35		83.13		87.26		80.45		68.37		62.19		47.13		39.39		61.35
1962	40.58		40.89		42.35		64.50		65.77		77.33		83.74		85.61		77.87		65.26		55.93		49.06		62.41
1963	38.84		50.61		48.55		52.17		72.19		74.60		86.00		80.00	a	75.30		67.16		52.37		47.10		62.07
1964	39.73	a	39.52		43.13		54.37		64.13		75.07		85.71		81.48		73.50		71.48		45.63		38.42		59.35
1965	43.19		44.00		45.39		52.30		61.71		70.83		80.55		81.19		68.27		70.42		51.33		41.68		59.24
1966	38.97		37.07		53.37	a	62.83		71.35		78.63		84.00		83.35		74.07		62.61		52.40		41.26		61.66
1967	42.10		45.89		51.71		49.97		64.97		70.47		83.77		82.84		71.60		66.68		53.97		35.13		59.92
1968	40.16		47.97		50.39		54.80		66.26		78.07		81.40	a	73.84		73.00		64.52		50.20		38.65		59.94
1969	40.45		37.57		40.03		58.17		71.10		73.70		82.07	a	83.39		75.97	a	56.52		50.43		45.26		59.55
1970	42.23		49.32		46.39		54.20		70.94		77.23		82.90		82.35		71.73		60.58		51.41	a	39.10		60.70
1971	40.23		42.46		49.81		58.27		61.45		77.63		85.52		81.39		72.57		57.48		45.97		33.94		58.89
1972	40.84		49.34		60.23		60.43		70.65		77.76	a	87.55		81.52		70.93		54.10		41.77		36.58		60.97
1973	35.00		40.46		41.39		50.97	a	68.65		76.33		83.61		81.74		74.37		65.23		48.10		42.52		59.03
1974	34.90		42.50		52.97		57.67		72.93	a	83.62	i	83.32		83.13		75.63		63.10	a	49.80		38.68		59.51	a
1975	41.52		40.68		42.97		48.77		64.06		75.23		81.55		80.35		75.17		62.87		50.20		43.90		58.94
1976	44.74		45.93		46.32		56.53		71.42		77.47		84.23		80.29		71.27		63.23		55.67		48.19		62.11
1977	40.87		50.14		47.26		64.10		61.29		80.87		82.61		81.45		73.90		66.81		53.67		47.10		62.51
1978	40.52		41.46		50.23		56.63		67.10		79.90		85.81		82.55		73.53		69.16		46.43		36.19		60.79
1979	32.45		41.14		45.39		57.07		68.77		78.97		84.87		79.87		80.13		68.19		47.00		48.65		61.04
1980	40.16		45.24		43.45		57.47		62.97		79.50		83.42		80.00		74.50		64.23		55.00		52.42		61.53
1981	49.69	b	49.96		48.03		63.57		66.63	a	81.90		85.03		81.13		74.73		57.61		53.63		47.10		63.25
1982	38.77		44.29		45.86	c	57.38	a	68.40	a	77.00		81.90		78.57	a	69.97	a	60.07	a	45.23		38.68	c	58.84
1983	43.00	a	42.79		44.93	a	49.38	a	67.10	a	76.40		80.77	a	78.26		76.10		64.50	a	49.33	c	40.62	b	59.43
1984	41.29		44.81	b	-----	z	58.36	b	76.48		77.71	b	82.29		79.84		77.14	b	55.72	f	49.37	c	38.30	a	62.56	b
1985	37.33	a	39.85	a	45.93	a	63.28	a	70.54	c	81.36	b	83.74		83.60	a	69.57		63.64	c	45.24	a	42.48	b	60.55
1986	49.33	a	45.15	a	55.52		59.18	b	71.75	c	80.89	c	79.61	c	82.44	f	67.72	e	60.83	g	52.58	d	42.93	a	60.47	b
1987	39.10	a	41.81	a	46.28	b	63.93	a	65.13	a	80.03		80.10	b	78.50	a	75.48	e	67.90	b	48.08	e	37.11	d	60.29
1988	37.70	a	47.00	d	52.60	f	59.56	e	66.96	d	79.36	b	83.90		80.27	e	73.69	a	70.30	a	50.78	c	40.68		62.75	a
1989	36.37	a	39.52	a	56.14	b	66.93	b	68.33	d	77.96	b	86.83	a	78.57	c	74.21	a	62.10		53.59	a	46.96	d	62.29
1990	40.41	d	38.00	a	49.96	d	59.19	c	66.00	c	79.90	a	82.74	d	78.26		74.85	d	65.93	b	51.41	a	34.35		60.08
1991	38.72	b	50.14		41.37	a	56.93	a	65.69	b	74.79	b	84.42		81.97	a	74.96	b	66.69	b	48.89	b	41.42		60.50
1992	40.33	a	42.66		48.16		66.03		68.80	a	75.71	b	81.14	b	80.66	b	72.97		62.70	a	43.00	b	31.55	b	59.48
1993	32.97	a	36.41	a	43.97	a	56.41	a	66.00	c	72.15	c	78.48	b	81.43	x	76.00	u	61.83	a	47.15	c	42.67	a	53.80	b
1994	45.61	c	38.33	a	54.71	c	58.59	a	68.86	b	83.20		87.03	b	85.94		77.03	a	60.59	b	41.71	b	-----	z	63.78	a
1995	36.45		50.57		49.16		56.04	b	62.62	b	73.11	c	82.20	a	84.62	b	78.04	b	68.62	b	60.46	b	45.23	a	62.26
1996	43.03	a	47.71	a	53.61		63.07	c	72.87	a	82.66	a	86.47	a	84.32		73.24	a	61.17	b	50.50	b	40.59	b	63.27
1997	36.84		41.64	c	56.80	a	55.67		72.90	a	76.96	b	83.28	b	80.73	a	72.54	b	63.03	b	51.33	c	39.90	b	60.97
1998	41.03	a	36.42	b	48.20	a	52.86	b	64.14	b	73.48	a	84.10		83.00	a	72.07		59.62	b	48.52	a	42.90		58.86
1999	46.47	a	48.00	b	57.00		51.43	b	67.89	d	77.25	b	80.93	d	78.61		74.48	a	71.06		58.97		44.20	a	63.02
2000	44.32	c	44.72		49.57	a	67.14	a	75.21	b	82.04	f	89.10	k	83.42		77.43		59.03	b	42.25	b	45.55		58.86	b
2001	39.03	b	41.68		51.45	b	59.57	b	74.13	a	83.28	a	83.97	a	82.87	a	80.47		68.60	a	51.18	b	36.62	b	62.74
2002	40.00	a	47.33	a	50.71	c	65.93	a	72.81		85.48	a	89.13		86.55	b	73.11	b	60.41	b	51.00		37.97	a	63.37
2003	50.00		41.93	a	50.93	a	56.79	a	71.43	a	82.07	b	90.06		84.31	b	79.03	a	71.97	b	46.43	b	42.06		63.92
2004	39.80	a	35.12	c	56.71	c	59.60		72.61	c	80.79	a	85.23		81.87	a	75.31	a	56.69	b	45.48	c	41.83	a	60.92
2005	41.10	b	41.32		46.27	a	59.86	b	70.33	a	75.75	b	87.77		78.70	a	75.62	a	65.63	d	53.83		43.90		61.67
2006	41.81		48.32		44.07	b	61.14	b	74.00	a	84.07	a	84.77		83.19		72.43		60.77	a	52.48	a	41.90	a	62.41
2007	39.83	b	46.08	b	57.57	a	62.47		72.57	a	83.90		89.58		85.23		76.00	a	64.70	a	58.72	a	35.63	a	64.36
2008	34.28	b	40.45		50.39	c	59.85	c	66.00	c	80.93		86.83	a	85.47	a	77.70		67.17	b	-----	z	39.66	b	62.61	a
2009	43.10	b	41.08	c	52.85	d	59.64	e	74.60	a	75.30	c	86.14	b	85.37	a	77.90	a	61.50	c	54.96	b	34.17	a	62.22
2010	-----	z	39.68		47.10		56.83		65.35		80.27		86.39		82.77	a	80.67		61.53	a	45.50		43.74		62.71	a
2011	40.55		38.57		49.19		58.67		64.39		79.00		83.61		86.39		75.80		64.84		48.13		40.71		60.82
2012	46.45		40.79		54.10		62.60		73.74		84.63		83.10		83.10		76.00		66.45		55.27		38.32		63.71
2013	36.61		41.18		55.81		61.83		69.79	b	85.47		85.67	a	81.45		71.20		59.68		50.77		40.45		61.66
2014	47.71		47.29		53.90		59.50		70.32		82.67		84.94		76.90		74.70		66.83	a	54.73		41.23		63.39
2015	47.74		53.64		57.23		60.93		63.74		82.33		81.06		82.06		77.47		64.03		60.47	k	39.97		64.56	a
2016	39.48		50.34		55.94		59.93		65.81		86.50		88.10		78.97		71.63		65.68		55.50		42.10		63.33
2017	36.06		43.25		58.84		60.10		68.43	a	84.87		85.71		82.52		73.67		66.74		58.72	a	51.90	a	64.23
2018	48.10		45.61		51.10		64.63		71.77	e	85.43		88.26		83.77		79.86	b	58.52	b	52.03		40.16		64.10
2019	38.45		33.43		47.48		62.60		60.16		76.73		85.21	b	86.16		77.70		63.23		53.90		38.35		60.28
2020	40.55		44.69		49.39		60.70		73.13		80.83		87.32		89.68		82.19	c	71.81		52.93		42.90		64.68
2021	41.65		44.22	a	50.03		63.90		73.29		86.90		87.58		84.61		78.73		60.13	a	59.37		40.52	b	64.24
2022	41.10		41.75		51.65		62.70		71.74		83.27		87.00		80.19		76.50		64.29		43.37		38.00		61.80
2023	32.81		37.75		37.87		56.77		66.97		73.90		89.52		80.71		72.10		65.61		52.70		47.77		59.54
2024	39.71		41.69		48.61		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	43.34	i
Period of Record Statistics
MEAN	39.66		42.32		48.22		57.88		67.29		77.44		82.75		80.26		73.80		62.95		50.47		41.54		60.38
S.D.	4.57		4.77		5.14		4.37		4.33		4.30		3.49		3.53		3.40		4.42		4.46		4.59		2.22
SKEW	-0.40		-0.00		0.23		-0.16		-0.48		-0.00		-0.10		-0.27		0.00		-0.15		0.01		0.40		0.00
MAX	50.00		53.64		61.70		67.14		76.48		86.90		90.06		89.68		82.19		73.06		60.46		53.55		64.68
MIN	24.00		29.93		37.87		47.57		52.03		64.24		73.47		70.32		65.93		50.03		41.71		31.55		55.84
YRS	108		109		107		108		107		106		107		107		108		107		107		106		93