BURLINGTON, CO

Average of Minimum Temperature (Degrees Fahrenheit)

(051121)

File last updated on April 18, 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
1903	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	16.68		16.68	k
1904	11.71		16.04	a	24.77		31.23		43.35		50.46	b	55.10		55.55		48.20		37.81		25.21	b	17.55		34.75
1905	13.87	a	7.43	e	30.70	a	32.74	c	41.93	a	55.29	b	54.90	a	57.65		50.38	a	30.65		26.78	c	14.10	a	34.70
1906	19.57	a	16.82		16.53	a	32.71	f	39.65		47.83		54.04	c	54.03	b	47.97	a	34.74		23.43		22.55		34.29	a
1907	15.33	a	20.54		29.03	b	29.50	b	37.37	a	49.73		58.19		57.81		48.43	b	-----	z	-----	z	-----	z	38.44	c
1908	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	59.15	r	57.65		51.63		35.58	e	24.10	a	13.48		36.49	g
1909	17.52		20.54		25.47	a	29.93		40.27	a	53.53		60.81		61.32		-----	z	38.13		28.43		7.32		34.84	a
1910	15.94		14.25		32.45	b	36.56	l	42.23		54.13		60.13		56.45		51.41	a	39.87		28.03		19.65		37.69	a
1911	19.13		17.18		28.35		33.17		44.67	a	56.83		59.26		57.03		53.83		35.06		20.63		12.77		36.49
1912	10.48		20.24		17.30	a	33.47		45.00		50.80		58.74		57.06		44.30		35.03		26.00	a	17.39		34.65
1913	14.35		10.79		21.32		34.86	a	45.35		53.90		59.45		60.57	a	46.83		33.94		29.83		14.97		35.51
1914	22.06		15.11		24.90		34.57		45.42		57.00		59.71		57.42		51.47		38.16		28.27		11.26		37.11
1915	13.84		23.61		20.39		40.23		41.19		50.10		55.97		53.53	a	49.03		38.32		28.27		18.45		36.08
1916	9.06		20.69		27.93	a	32.57		41.17	a	52.27		61.52		58.16		46.93		35.65		22.79	a	9.52		34.85
1917	12.29		17.36		20.26		31.17		39.32		50.10		59.77		55.16		51.50		31.81		30.70		15.40	a	34.57
1918	9.45		18.18		30.68		30.73		43.10		56.00		58.48	d	57.03		44.03		41.84		22.57		18.71		35.90
1919	12.55		13.67	a	28.77		35.36	b	42.74		52.37		60.32		58.65	e	53.57		33.97		20.78	c	15.40	a	35.68
1920	18.84		19.72		22.16		27.97		44.90		52.70		56.94		53.94		48.47		38.13		23.87		18.16		35.48
1921	21.06		22.68		28.35		32.60		44.29	c	59.33		62.85	k	58.87		-----	z	38.32		29.23		20.26		35.50	b
1922	11.48		15.46	b	25.23		-----	z	-----	z	58.32	h	57.89	m	60.50	e	56.15	q	33.88	f	27.33		18.40	a	26.40	f
1923	21.42		13.00		19.13	a	33.87		43.81		57.33	i	60.58		57.59	b	49.30		36.45		27.93		17.43	a	34.59	a
1924	13.37	a	24.39	a	18.80	a	33.00		38.77		52.73		57.77		59.97		46.83		41.06		26.00		7.52		35.02
1925	9.68		27.93		27.77	a	38.23		46.65		56.90		61.55		56.85	k	53.37		32.42		27.07		20.71		36.57	a
1926	18.40	a	25.25		25.42		32.13		47.74		54.50		59.35		59.00		48.48	c	39.55		25.90		15.87		37.63
1927	15.72	b	21.00		23.58		35.47		46.90		53.10		58.61		56.32		50.77		40.03	a	26.87		9.60	a	36.50
1928	20.35		17.97		25.52		30.60		46.43	a	49.52	a	58.19		57.13		45.27		37.68		26.59	a	18.55		36.15
1929	10.83	a	7.29		25.19		33.30		41.77		50.83		61.06		59.94		46.90		38.45		18.90	a	20.84		34.61
1930	1.84		25.46		-----	z	38.40		42.42		49.79	b	59.77	a	59.90	b	49.00		38.61		22.83		16.74		36.80	a
1931	18.81		25.75		22.13		32.37		40.45		56.00		61.87		56.61		53.63		37.97		23.90		18.52		37.33
1932	14.61		24.38		18.77		36.27		45.94		53.03		61.71		60.58		49.37		33.84		25.59	a	9.27	a	36.11
1933	19.06		9.42	b	26.94		32.53		43.90	a	59.23		61.88	f	57.87	a	52.10		38.32		28.63		26.35		35.85	a
1934	22.39		24.32		27.10		36.54	b	50.53	a	57.10		63.90		61.61		45.53		40.94		29.17		20.10	a	39.94
1935	19.52		23.07		30.00		32.90		42.42		53.27		62.31	b	61.13		51.03		38.97		23.43		20.39		38.20
1936	14.97		6.54	a	25.57	a	34.57		49.61		59.20		64.97		58.68	c	51.40		34.50	a	24.00	c	20.16		37.01
1937	4.35		16.57		23.16		33.47		46.00		54.21	a	62.17	a	63.00		53.23		39.29		23.71	b	18.26		36.45
1938	20.65		21.79		30.81		35.10		43.19		52.83		57.13		59.32		53.04	c	43.65		24.20		20.55		38.52
1939	22.81		11.29		27.45		35.43		47.35		53.47		61.58		57.90	a	53.27		36.97	a	26.17		23.29		38.08
1940	7.61		22.66		28.00		34.27		44.32		54.37		61.19		57.70	a	54.17		40.06		23.93		22.39		37.56
1941	20.71		21.86		26.00		36.10		48.77		54.10		60.37	a	59.74		49.20		40.48		28.45	a	19.84		38.80
1942	13.29		15.89		25.26		38.17		41.90		54.47		58.68		58.14	c	47.50		40.16		27.48	c	22.58	g	38.27	a
1943	17.58		23.00		19.74		39.25	b	41.23		53.10		60.10		61.52		47.63		35.32		26.47		19.06		37.00
1944	17.42		20.38		21.87		31.50		45.58		53.70		59.16		57.32		47.67		39.23		28.07		18.42		36.69
1945	18.42		22.89		27.35		30.77		41.42		48.73		58.77		59.35		46.28	a	38.03	a	27.63		15.13		36.23
1946	16.94		20.36		29.45		40.37		40.00	w	55.00	n	60.94		58.10		50.73		35.77		22.83		22.90		35.84	b
1947	16.58		16.21		21.93	a	32.90		42.77		51.67		59.94		61.26		51.93		42.90	j	23.10		19.74		36.19	a
1948	16.00		15.31		17.00	d	38.20		46.13		54.43		59.06		58.70	a	51.93	a	36.19	d	22.36	e	19.08	e	36.20
1949	5.56	d	16.64	c	26.07	d	35.97		47.00	a	55.10		60.52		56.80	a	48.56	c	36.87	a	30.53		16.87		36.37
1950	11.45		22.32		21.97		32.55	a	39.90		52.83		57.26		55.58		49.40		40.65		22.60		20.42		35.58
1951	13.04	c	19.89		19.37	a	30.53		45.20	a	49.70		59.87		57.58		45.21	a	35.55		22.57		13.61		34.34
1952	17.81		21.00		21.03		33.60		43.42		57.37		58.45		59.16		49.43		34.45		21.87		17.52		36.26
1953	23.23		17.46		27.39		30.67		42.32		57.23		61.29		58.81		50.60		40.65		28.90		18.48		38.09
1954	18.32		28.68		22.06		36.70		42.58		55.10		63.94		58.90	a	52.93		37.77		28.63		19.77		38.78
1955	16.42		13.89		19.87		35.37		45.90		50.57		61.61		59.97		49.57		38.71		19.97		17.58		35.79
1956	15.74		15.34		22.42		28.70		45.87		56.00		53.32		52.97		45.67		37.39		25.24	a	21.53	a	35.02
1957	8.55	b	22.89		24.55		32.43		42.19		51.67		60.94		56.55		43.03		37.48		21.97	a	22.42		35.39
1958	18.13		20.50		20.03		31.80		47.84		53.69	a	55.13		57.45		49.37		34.37	a	24.30		19.35		36.00
1959	12.58		15.18		23.45		32.23		43.42		53.77		54.71		57.52	b	45.87		33.84		20.90	a	20.90		34.53
1960	11.68		8.24		19.39		37.13		41.90		51.93		58.19		57.84		48.63		38.87		25.80		18.39		34.83
1961	17.42		20.32		29.06		30.87		41.74		52.47		57.58		55.65		42.14	a	34.71		22.13		14.58		34.89
1962	9.39		19.39		21.94		35.21	a	-----	z	-----	z	57.63	a	57.87		48.93		39.35		-----	z	21.42		34.57	c
1963	5.61		23.21		-----	z	35.41	a	46.63	a	55.60		64.10		59.23		54.40		43.52		28.20		14.89	d	39.16	a
1964	19.58		18.62		23.45	b	35.37		46.61		53.87		63.63	a	56.13		50.45	a	37.74		27.13		18.58		37.60
1965	22.13		17.04		16.74		39.17		46.81		55.33		61.52		58.29		44.17		42.53	a	31.93		24.61		38.36
1966	12.48		19.68		29.84		35.10		46.35		55.17		65.35		56.87	a	50.79	a	38.30	a	28.37		18.74		38.09
1967	21.60	a	22.14		28.39		35.31	a	43.50	a	54.14	a	60.70	a	56.42		49.37		38.42		25.63		14.16		37.48
1968	18.33	a	20.34		26.65		32.27		41.16		55.62	a	59.16		56.35		47.73		38.87	a	27.07		14.61		36.51
1969	19.13		21.50		19.68		37.67		46.55		50.60		60.52	b	59.61		52.83		34.90		26.37		22.81		37.68
1970	15.80	a	20.86		21.03		31.27		45.77		53.27		62.10		61.94		46.37		34.90		27.50		17.81		36.55
1971	16.30	a	18.43		24.60	a	35.80		43.55		56.07		56.16		58.90		47.70		39.26		27.43		22.06		37.19
1972	16.00	a	19.76		28.39		-----	z	45.90	a	56.57		58.68		56.90		50.97		-----	z	24.50		14.23		37.19	b
1973	19.65		23.61		-----	z	32.70		44.60	a	54.40		58.93	a	61.58		49.40		41.42		28.39	b	19.93	b	39.51	a
1974	15.94		25.33	a	29.35		36.53		47.45		54.53		62.39		56.13		45.20		40.48		27.63		-----	z	40.09	a
1975	18.73	a	17.07		-----	z	33.83		42.80	a	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	23.07	a	27.10	g
1976	18.58		26.41		24.55		38.03		44.29		54.20		-----	z	58.77	a	50.52	a	34.45		24.47		20.90	b	35.92	a
1977	11.32		23.68		24.67	a	40.83	a	49.55	k	-----	z	61.87	a	60.23		55.11	b	40.52		26.41	a	20.32		36.49	b
1978	10.39	c	15.39		-----	z	39.59	c	47.26		57.77		60.97	b	55.65		51.50		37.03	b	25.23		11.56	d	37.49	a
1979	2.13		16.21		26.81		32.22	c	41.55		54.73		62.50	a	58.58		52.50	b	41.33	a	23.20		23.48		36.27
1980	15.52		22.45		22.32		34.17		44.00		56.93	a	63.90		61.35		52.97		36.48		26.93	c	22.93	c	38.33
1981	21.35		21.36		29.32		41.53		44.87		56.47		61.30	a	59.03		51.97		39.68		31.79	b	20.42		39.92
1982	12.41	b	15.61		27.39		31.07		43.84		50.23		60.35		60.87		51.40		37.52		24.23		18.27	a	36.10
1983	22.45		25.00		26.60	a	31.14	a	41.42		52.41	a	60.84		62.67	a	49.73		37.77		25.93	a	6.80	a	36.90
1984	16.16		23.14		24.87		29.59	a	44.00		54.17		59.90		61.26		48.50		38.55		28.13		21.29		37.46
1985	15.42		16.86		28.55		39.13		48.23		54.93		62.10		59.19		49.20		38.84		22.07		17.83	a	37.70
1986	26.32		22.68		32.97	a	37.57		46.10	a	58.17		62.74		59.61		51.87		40.07	a	26.60		21.58		40.52
1987	20.77		26.54		26.26		37.67		50.16		56.57		60.42		58.74		50.43		38.23	a	30.17	a	20.74		39.73
1988	15.42		21.46	a	25.60	a	36.43		48.13	a	59.47		61.00		61.65		50.10		39.29		28.77		21.84		39.10
1989	20.90		11.29		25.90		36.97	a	44.00	h	-----	z	-----	z	58.55	b	47.73	o	36.55		27.00		22.32	l	31.02	e
1990	20.34	b	20.86		28.63	a	35.63		42.18	i	58.55	a	59.47	a	58.74		53.12	d	37.21	g	30.26	k	11.50	e	38.54	c
1991	14.79	b	25.50		27.74	d	36.41	a	48.74		59.20	j	60.42		58.29		50.03		35.28	b	26.08	d	24.00	d	37.03	a
1992	22.13		27.97		31.26	l	36.93	c	45.13	a	52.33		56.61	c	55.04	c	48.59	c	38.13		23.31	a	12.86	b	38.09	a
1993	13.30	a	15.67	a	27.57	c	33.73	d	44.82	c	52.41	a	58.07	c	58.29		44.56	e	37.17	b	20.45	a	21.37	a	35.62
1994	17.84		13.80	c	28.00	a	32.52	c	46.57	a	58.21	b	57.16		59.79	c	50.69	a	38.37	a	25.61	b	24.52	b	37.76
1995	19.89	c	22.82		26.35		30.38	a	40.94		52.57	b	58.17	b	60.41	b	49.55	a	35.32		26.71	b	19.80	a	36.91
1996	12.77	a	19.18	a	17.69	b	31.93		50.20	a	63.11	c	63.95	k	57.00	g	48.34	a	35.10	b	21.57	b	15.10	a	31.50	b
1997	13.35		17.42	b	24.97	a	28.33		41.38	b	54.88	e	59.13		58.07	b	50.80		36.45		22.39	b	20.10		35.61
1998	20.00	a	25.57		22.81		32.07		47.50	a	50.78	c	62.48		58.93	d	53.59	a	38.13		30.57		16.47	a	38.24
1999	18.55		22.00	a	25.37	a	33.20		42.73	a	52.79	a	61.21	c	58.59	i	46.61	b	35.73	a	31.14	b	20.71	c	35.46	a
2000	19.10		23.07		28.83	b	32.47		44.87	a	52.60	j	60.77		60.00		48.41	c	37.45		19.76	a	12.00		35.16	a
2001	16.50	a	17.64	c	26.00	i	36.21	a	45.32		54.33		63.71		58.00	c	49.80		35.26		27.60		18.71		38.46	a
2002	16.39		17.21		17.93	a	34.18	b	42.04	f	58.96	b	61.11	d	58.32		49.62	a	31.70	d	25.93		20.03		35.58	a
2003	19.19		16.11		27.10		37.73		45.26		52.73		62.16		60.06		45.70		39.81		23.43		19.32		37.38
2004	17.23		17.62		29.86	i	33.97		45.16		52.28	a	58.00	a	54.42		51.07		37.77		26.69	a	21.13		37.76	a
2005	19.97		23.21		27.55		35.72	a	44.68		54.70		61.14	c	58.52	d	52.40		39.06		28.67		17.77	a	38.62
2006	23.43	a	17.00		23.88	f	35.04	d	46.23	e	55.71	w	64.20	k	59.40	a	44.76	i	31.89	m	25.93		17.80	a	32.12	e
2007	7.00	j	17.67	d	30.96	c	29.27	o	45.30	a	57.58	k	59.71	g	62.23		51.10	j	40.20	k	25.43	b	13.67	g	36.32	g
2008	14.53	l	17.57	a	25.00	p	-----	z	-----	z	-----	z	-----	z	-----	z	47.97		37.84		28.77		14.42		29.31	g
2009	18.42		22.54		24.35		33.27		45.61		54.17		58.58		56.06		48.97		30.06		30.00		12.45		36.21
2010	17.55		16.36		27.06		35.27		41.81		56.63		61.32		59.65		51.13		39.65		26.10		20.23		37.73
2011	15.71		13.29		25.55		33.93		40.42		54.97		62.97		61.48		47.90		37.74		25.23		18.42		36.47
2012	19.13		19.17		33.90		39.57		46.32		58.73		63.61		57.58		50.40		35.35		28.90		17.90		39.21
2013	15.87		17.86		21.29		28.47		44.71		55.60		59.81		60.77		54.23		36.29		26.12	e	18.60	k	38.27	a
2014	16.42		13.29		24.10		34.10		44.03		53.40		60.55		58.52		50.67		40.58		21.87		18.65		36.35
2015	18.55		19.25		29.65		36.57		43.65		58.63		59.97		58.97		54.40		41.58		27.00		20.68		39.07
2016	19.77		23.59		28.14	c	34.87		42.77		57.90		61.19		57.58		51.33		40.90		30.70		12.77		38.46
2017	18.03		24.04		28.42		35.40		43.39		56.03		62.00		56.45		49.87		35.97		28.17		17.68		37.95
2018	17.10		13.14		26.84		28.97		49.39		57.21	a	60.52		57.71		52.47		34.97		24.57		19.94		36.90
2019	18.00		12.00		22.45		34.67		41.23		53.47		61.29		60.55		55.73		30.61		24.43		22.61		36.42
2020	20.52		17.34		29.03		30.50		44.32		57.47		60.94		60.13		47.93		32.55		29.93		21.03		37.64
2021	19.55		11.61		27.71		31.30		44.74		57.90		61.13		59.32		53.67		39.29		29.47		22.23		38.16
2022	15.10		14.61		23.00		32.00		43.94		56.27		63.10		60.55		52.33		38.48		23.23		14.39		36.42
2023	16.48		16.39		20.97		31.57		46.74		54.97		60.39		59.35		52.40		38.58		28.47		23.84		37.51
2024	14.03		26.48		26.52		34.00	l	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	22.34	i
Period of Record Statistics
MEAN	16.24		19.09		25.10		34.18		44.38		54.42		60.12		58.50		49.79		37.50		25.93		18.17		36.89
S.D.	4.50		4.69		3.86		2.99		2.63		2.76		2.34		2.01		2.81		2.71		2.88		3.94		1.44
SKEW	-0.84		-0.38		-0.30		0.21		0.01		0.14		-0.49		-0.25		-0.33		-0.41		-0.20		-0.77		0.26
MAX	26.32		28.68		33.90		41.53		50.53		63.11		65.35		63.00		55.73		43.65		31.93		26.35		40.52
MIN	1.84		6.54		16.53		27.97		37.37		47.83		53.32		52.97		42.14		30.06		18.90		6.80		34.34
YRS	118		120		110		113		111		107		109		115		113		112		116		115		83