DELTA, CO

Average of Minimum Temperature (Degrees Fahrenheit)

(052192)

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	7.74		17.44	a	23.58		31.77		37.81		42.07		53.00		51.26		39.37		30.42		22.20		19.00		31.30
1894	9.61		8.39		25.48		31.77		41.58		43.87		53.81		54.39	c	39.30		30.55		20.87		19.00		31.55
1895	18.16		13.57		23.74		30.10		38.65		44.87		52.94		53.87		44.69	a	33.93	b	19.00		5.40	a	31.58
1896	14.45		16.38		23.16		31.45	a	44.63	a	45.11	b	-----	z	40.50	q	38.10	a	-----	z	-----	z	8.65		27.74	d
1897	10.48		18.96		24.23	a	34.93		44.71		47.73		53.23		53.45		51.37		37.61		23.57		10.69	b	34.25
1898	5.53	a	16.43		21.81		34.07		39.71		48.67		56.87		55.32		40.63		28.68		21.53		6.52		31.31
1899	8.19		16.00		28.39		31.00		38.55		46.79	k	53.55		50.45		40.23		31.45		23.70		11.23	a	30.25	a
1900	17.00		16.64		25.90		35.43		41.68		46.93		50.65		46.90		41.03		30.48		22.27		12.81		32.31
1901	12.35		21.39		21.16		32.87		42.84		46.57		55.23		56.58		40.97		35.06		21.13		15.26		33.45
1902	11.74		17.89		21.68		33.20		39.68		45.86	a	49.29		53.26		37.00	a	28.10		22.80		6.68		30.60
1903	-1.94		1.89		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-0.02	j
1904	-----	z	-----	z	-----	z	31.77		38.35		44.43		48.61		50.53	a	41.83	a	27.61		-----	z	-----	z	40.45	e
1905	-----	z	-----	z	-----	z	-----	z	42.81		50.40		54.74		51.58		43.70		24.45		20.13		6.74		36.82	d
1906	4.90		18.25		28.65		36.27		42.77		48.07	a	56.13	a	53.87		45.33		-----	z	-----	z	-----	z	37.14	c
1907	-----	z	25.14		31.65		35.67		38.71		47.87		55.90		56.23		44.33		37.97	a	21.87		17.13		37.50	a
1908	16.39		26.21		26.00		34.40		38.84		46.57		54.73	a	54.26		43.33		30.71		18.03		15.35		33.74
1909	19.97		20.25		26.23	a	31.57		37.77		49.40		56.57	a	57.35		46.60		31.94		25.13		5.19		34.00
1910	12.74		19.39		28.48		33.77		41.35		50.03		56.52		53.06		46.27		32.84		25.77		14.74		34.58
1911	19.10		24.32		30.68		32.83		39.94		48.30		54.03		50.23		47.17		31.84		19.10		7.13		33.72
1912	10.68		14.34		29.13		28.21	a	40.32		47.54	q	52.94		49.03		34.93		29.26		19.03		6.91	h	30.79	b
1913	-0.16		18.11		23.47	a	31.90		42.68		48.53		58.55		52.94		42.00		30.42		26.90		6.97		31.86
1914	14.00		19.57		26.65		37.50		44.42		48.10		56.65		53.35		44.73		34.19		18.87		7.61		33.80
1915	3.26		20.64		25.81		38.67		40.16		46.87		54.60	a	49.84		44.63		29.42		24.00		19.94		33.15
1916	11.19		17.55		26.80	u	33.43		38.13		44.63		54.23		51.68		41.62	a	34.61		20.27		14.97		32.94	a
1917	5.23		17.46		18.65		31.73		38.71		43.33		54.68		48.84		42.47		28.90		24.83		17.65		31.04
1918	5.97		15.32		29.87		33.30		39.03		54.07		52.84		50.45		41.97		37.40	a	21.37		14.19		32.98
1919	0.81		18.11		25.32		35.00		43.80	a	46.47		57.35		52.10		47.34	a	30.68		19.43		3.23	a	31.64
1920	7.71		23.97		26.42		30.27		42.58		48.90		53.84		50.68		41.53		33.61		24.73		13.74		33.16
1921	18.45		21.86		29.06		32.93		42.68		50.33		56.26		54.45		43.62	a	36.10		25.17	a	23.77		36.22
1922	12.19		19.46		25.35		32.00		40.71		50.83		53.68		56.26		44.40		30.65		23.33		23.06		34.33
1923	17.97		15.64		22.55		34.28	a	42.68		46.27		56.87		53.68		42.53		30.84		21.57		15.03		33.32
1924	-1.39		20.93		23.47	a	33.52	a	41.39		49.63		53.68		50.03		41.30		33.48		21.57		9.67	a	31.44
1925	2.16		19.86		29.00	a	-----	z	44.10		49.93		56.45		53.32		46.10		34.07	a	20.17		16.45		33.78	a
1926	12.19		23.07		27.47	a	37.90		44.26		49.07	a	53.29		53.00		43.97		34.52		25.53		17.16		35.12
1927	17.68		24.85	b	26.94		36.03		42.03		50.97		54.68		52.52		46.43		32.26		26.73		13.39		35.37
1928	15.03		18.48		30.94		32.47		45.48		47.30		52.19		51.45		43.30		36.48		27.97		12.03		34.43
1929	7.60	a	13.00		25.61		33.33		41.45		47.07	a	57.81		55.40	a	45.70		34.13		18.07		12.06		32.60
1930	6.48		17.50		25.65		37.72	a	40.71		46.47		55.87		53.97		44.67		31.48		16.83		3.23		31.71
1931	7.90		25.50		23.71		33.43		40.03		51.47		55.87		52.90		47.70		37.53	a	21.70		9.27	a	33.92
1932	9.26		24.90		25.10	a	34.97		43.55		47.03		56.32		54.45		41.43		31.97		20.80		11.77		33.46
1933	7.32		5.68		26.10		29.50		39.32		52.17		58.39		53.84		49.07		36.19		23.27		19.29		33.34
1934	19.16		27.43		31.16		38.07		47.35		47.73		58.29		56.58		43.50		33.35		25.33		17.97		37.16
1935	18.90		19.21		25.32		36.93		44.16		48.73		57.39		55.97		45.23		34.84		23.03		15.50	a	35.44
1936	17.77		24.59		27.06		35.13		42.87		52.47		57.26		55.81		45.20		34.35		18.33		18.13		35.75
1937	4.00		19.64		26.97		33.20		44.19		49.33		57.65		54.13		47.07		35.06		26.40		21.94		34.96
1938	18.55		-----	z	30.94		34.97		42.65		52.66	a	52.19		54.81		47.20		35.68		16.73		15.84		36.56	a
1939	14.33	a	11.82		26.90	a	36.34	a	43.77		48.70		55.30	h	54.39		50.14	b	32.23		22.13		16.58		32.49	a
1940	17.87		25.76		27.29		36.60		45.16		51.87		56.00		53.00		50.10		35.84		23.77		19.84		36.92
1941	19.58		26.18		29.06		35.73		45.00		48.43		53.47	a	53.81		44.76	a	39.19		23.67		20.16		36.59
1942	12.81		16.04		23.23		37.67		40.29		47.47		55.42		52.97		42.67		35.16		25.93		18.74		34.03
1943	16.26		19.86		26.00		37.57		42.48		49.63		55.61		56.35		44.27		35.29		21.83		20.68		35.49
1944	12.61		22.21		25.71		33.47		43.48		46.97		53.52		51.65		44.47		36.87	h	26.90		14.87		34.17	a
1945	16.13		26.00		24.23		30.43		44.61		45.03		55.03		56.26		43.40		36.74		21.40		12.03		34.27
1946	10.58		15.43		27.13		39.87		41.39		47.27		54.94		55.29		44.30		34.19		23.60		16.10		34.17
1947	8.39		18.82		26.90		35.72	a	44.71		48.13		54.42		55.16		45.73		38.39		23.07		17.06		34.71
1948	9.65		16.79		23.77		36.43		42.93	a	49.03		53.26		52.42		45.13		32.06		20.43		19.68		33.47
1949	10.94		12.21		29.00		36.67		44.03		50.73		56.71		51.94		45.27		33.13		21.70		15.87		34.02
1950	12.55		21.25		25.94		35.33		39.10		46.33		54.97		49.90		46.70		35.77		23.97		20.00		34.32
1951	12.97		18.29		24.23		33.83		42.39		44.87		53.23		50.65		39.97		32.48		20.00		12.90		32.15
1952	17.90		16.90		23.26		33.03		43.74		49.72	a	53.45		52.94		43.87		29.13		16.97		13.10		32.83
1953	19.29		15.36		24.06		30.67		37.35		51.20		54.97		49.45		39.63		30.32		22.57		10.19		32.09
1954	15.65		17.07		22.10		33.03		40.58		48.00		58.32		51.06		47.43		35.29		23.00		11.39		33.58
1955	14.16		10.46		24.52		30.70		41.58		48.33		54.77		56.71		44.30		31.90		21.70		21.58		33.39
1956	22.61		15.76		20.35		32.03		40.84		47.83		52.39		49.58		41.63		33.35		15.43		6.94		31.56
1957	16.71		20.93		26.58		32.80		38.90		47.03		53.68		54.61		39.57		36.65		21.93		15.71		33.76
1958	9.73	a	23.07		23.97		29.23		43.97		50.62	a	52.10		54.58		46.70		33.23		23.34	a	17.74		34.02
1959	14.94		22.36		24.10		33.77		44.32		52.27		56.00		54.32		44.67		33.84		19.50		18.16		34.85
1960	13.19		18.83		27.61		34.03		40.74		49.37		53.55		51.45		46.97		35.77		24.03		12.26		33.98
1961	7.55		20.54		29.03		33.60		43.71		50.67		54.13		56.26		42.90		35.00	a	22.93		10.53	a	33.90
1962	8.55		25.39		21.90		36.20		42.77		48.50		52.29		51.06		45.03		35.97		26.87		15.61		34.18
1963	3.45		22.93		25.42		33.83		44.13		48.63		55.77		56.29		47.13		39.52		26.13		12.29		34.63
1964	8.23		11.31		20.32		33.30		41.94		47.03		55.06		52.94		44.10		33.45		23.43		19.23		32.53
1965	20.90		18.54		23.45		33.77		40.77		46.97		54.55		51.03		43.37		33.10		29.73		20.58		34.73
1966	11.42		15.79		22.97		32.30		43.45		50.63		58.10		53.42		45.83		33.00		27.17	a	16.10		34.18
1967	15.65		19.39		30.90		33.80		40.81		48.17		56.00		53.19		47.60		34.52		22.97		11.84		34.57
1968	5.84		23.97		24.90		30.13		40.87		47.70		56.35		51.48		41.00		30.90		21.80		7.45		31.87
1969	18.74		18.29		19.45		29.20		40.16		43.40		52.74		51.90		43.40		30.68		18.83		18.65		32.12
1970	15.10		17.50		24.06		26.20		38.84		47.20		52.74		52.13		40.60		29.03	a	23.67		15.84		31.91
1971	11.71		15.43		19.19		27.38	a	37.94		46.13		52.81		55.00		38.60		32.74		22.17	a	13.39		31.04
1972	12.16		13.54	a	23.77	a	31.77		36.84		48.80		50.42		52.65		42.40		-----	z	24.20		-----	z	33.65	b
1973	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1974	5.37	a	2.46		28.13	a	29.77		40.00		45.37		54.90		47.58		39.73		35.23		22.03		10.90		30.12
1975	4.00		16.30	a	-----	z	-----	z	-----	z	-----	z	53.42		48.55		40.87		26.71		19.47		11.45		27.59	d
1976	5.71		23.97		21.32		31.43		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	19.60		8.55		18.43	f
1977	10.81		16.25		21.26		35.30		43.74		52.93		58.26		53.16		46.10		33.94		23.53		19.94		34.60
1978	-----	z	24.04		33.16		38.40		41.23		48.93		51.58		48.42		41.90		31.29		25.80		-----	z	38.47	b
1979	5.97		-----	z	26.55		33.10		43.69	b	49.07		53.45		50.81		41.87		33.65		18.97		11.84		33.54	a
1980	22.19		23.93		27.26		33.17		43.00		49.30		56.65		53.97		44.90		32.58		22.93		23.97		36.15
1981	17.74		16.59	a	28.32		37.23		44.13		51.70		58.68		55.32		49.83		38.06		26.17		19.47	a	36.94
1982	15.54	c	19.52	a	31.39		33.40		43.77		49.70		54.96	e	58.52		49.53		30.29		27.00	a	19.19		36.07
1983	16.45		24.00	a	31.55		35.97		41.13		47.88	d	56.03		58.55		48.37		35.81		28.50		22.61		37.24
1984	8.00		16.52		27.30	a	34.07		40.27	i	59.60	t	58.33	a	53.16		48.77		38.03		25.57		20.61		33.04	b
1985	19.97		17.46		29.29		36.33		46.87		50.73		56.84		-----	z	46.87		36.97	a	30.30		18.48		35.47	a
1986	17.37	a	25.36		29.65		36.63		41.30	a	50.45	a	52.58		52.03	a	44.23		35.97		26.76	m	20.30	a	36.90	a
1987	17.39	c	25.71		23.45		33.72	a	43.23		49.76	a	-----	z	51.60	a	40.43		32.16		24.47		18.19	e	32.74	a
1988	10.10	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	10.70	h	10.10	k
1989	7.71		16.43		26.61	c	32.69	a	37.32	c	45.28	a	50.03	a	45.45		35.62	a	36.81	d	24.72	l	10.57	h	33.40	b
1990	12.33	a	16.04		28.55		36.13		39.45		47.67		53.45		48.81		47.73		33.70	a	24.45	a	6.48		32.90
1991	1.77		14.46		28.32		32.00		43.29	c	50.37		55.35		55.84		45.34	a	33.32		25.90	a	13.17	a	33.26
1992	3.72	b	22.48		31.06		39.30		47.16		50.83		54.47	a	56.45	t	45.00		36.17	b	22.90		14.77		33.44	a
1993	23.13		27.46		29.29		35.03		44.71		49.55	a	51.13		49.52		38.39	b	30.29		15.80		11.42		33.81
1994	10.60	a	17.33	a	23.74		32.20		40.61		53.48	a	56.03	a	57.90	b	46.23		35.77	a	26.21	a	20.77	a	35.07
1995	22.58		25.46		32.07	a	34.77		42.32		48.80		53.84		57.77	a	46.87		31.55		25.77		20.00		36.82
1996	15.87		23.96	a	28.20	a	33.83		45.47	a	51.69	a	57.45		54.81		45.92	d	33.93	b	27.96	e	19.57	c	36.56
1997	20.90		20.92	b	26.40	a	31.60	e	44.90	b	51.77	d	53.79	l	55.50	g	49.89	c	33.46	c	24.96	f	14.95	i	34.98	d
1998	22.65	h	23.15	h	26.00	e	34.06	n	-----	z	48.00	d	59.38	g	53.89	m	52.91	s	34.56	m	26.61	l	9.67	j	37.00	j
1999	19.93	d	20.95	g	29.60	a	34.32	b	40.93	d	48.79	b	58.92	f	56.54	c	44.43	b	29.55	b	21.39	b	14.50	a	34.00	b
2000	15.62	g	26.16	d	31.38	w	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	26.16	k
2001	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	12.17		19.02		26.08		33.76		41.92		48.50		54.74		53.04		44.05		33.35		22.79		14.74		33.77
S.D.	5.93		5.01		3.15		2.63		2.38		2.37		2.16		2.66		3.25		2.91		3.09		4.98		1.68
SKEW	-0.25		-0.79		-0.06		-0.15		-0.09		-0.14		-0.30		-0.24		-0.29		-0.28		-0.07		-0.35		0.09
MAX	23.13		27.46		33.16		39.87		47.35		54.07		58.68		58.55		51.37		39.52		30.30		23.97		37.24
MIN	-1.94		1.89		18.65		26.20		36.84		42.07		48.61		45.45		34.93		24.45		15.43		3.23		30.12
YRS	101		100		100		100		100		99		97		98		102		98		97		96		78