TWIN LAKES RESERVOIR, CO

Average of Average Temperature (Degrees Fahrenheit)

(058501)

File last updated on April 26, 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
1949	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1950	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1951	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1952	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1953	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1954	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1955	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1956	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1957	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1958	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1959	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1960	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1961	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1962	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1963	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1964	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1965	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1966	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1967	-----	z	-----	z	-----	z	-----	z	41.42	a	49.58		58.31		54.16		49.92	e	42.47		29.78		15.31	e	42.62	d
1968	17.19	b	20.52		22.56		29.19	a	40.20	a	50.97		56.15		53.69		45.55		38.71		25.33		18.64	f	36.37	a
1969	21.77		15.30		14.20	k	35.37		45.19		48.32		57.79		58.15		49.50		32.66		28.15		20.45		37.51	a
1970	10.31	o	20.97	l	19.24		25.20		41.42		49.77		57.24		57.21		46.52		35.56		29.57	a	19.90		38.16	b
1971	21.26		18.32		22.31		33.37		39.61		49.20		54.65		55.45		45.45		37.89	l	26.75		15.95		34.76	a
1972	18.95		15.22	k	29.58	a	34.36	a	40.82		49.37		54.35		53.19		47.77	f	38.50	c	20.57		14.95	a	35.47	b
1973	14.72	a	16.07		20.20	a	25.47		38.67	a	47.47		53.08		52.20	a	43.42		38.72	a	30.17		22.50	h	34.56	a
1974	12.97		15.45		25.30	c	29.25		41.48		48.30		55.06		51.35		45.93		39.16		25.88		15.07	a	33.77
1975	14.44	f	12.53	j	19.10	g	23.70		35.74	b	51.26	m	55.69		52.32		46.10		35.08	a	23.38		23.00		36.88	d
1976	16.98		19.41		-----	z	29.73		38.55	a	46.40		55.39		51.89		47.59	a	34.00		26.40		18.58		34.99	a
1977	14.50		17.91		21.65		34.00		42.25	a	53.12		56.32		53.47		47.70		37.61		28.32		19.87	a	35.56
1978	15.22	b	15.68		26.80	h	34.95	j	41.25	i	53.07	i	58.48	k	55.28	h	49.28		40.74	n	27.82	k	15.35	k	26.73	i
1979	8.27	i	17.97	i	25.45	l	31.10	i	41.08	f	49.73		56.83	d	54.74	h	51.59	m	42.43	i	18.56	l	21.89	l	53.28	j
1980	18.00	k	19.67	k	19.76	l	28.71	i	41.31	j	54.33	i	60.44	m	57.67	j	50.76	i	38.98	k	29.52	h	29.88	k	-----	z
1981	21.77	k	21.85	k	23.50	j	38.08	f	43.80	h	55.56	d	58.70	i	55.32	f	50.98		41.00	j	32.79	k	20.79	j	53.27	j
1982	17.35	k	15.26	i	26.57	i	30.41	h	41.62	a	50.13		56.42		57.00		48.87		35.67	k	26.45	k	20.73	k	50.81	g
1983	22.38	j	20.84	i	23.20	h	24.67	a	39.56	g	49.00		57.58		58.37		51.80		40.33	j	28.66	k	14.32	n	48.28	g
1984	14.14	j	18.26	j	22.00	i	27.52	h	42.24	d	49.28		57.32		55.33	d	49.47	k	31.55	i	25.66	k	18.34	l	51.04	h
1985	13.59	i	13.71		25.71	j	35.39	h	45.19		53.77		57.63	h	58.09	i	47.79	k	40.55	i	26.69	l	22.61	l	37.56	i
1986	24.07	j	23.68	i	30.12	j	36.95	h	43.35	a	54.05		56.60		57.76	j	47.62	i	40.07	i	31.19	l	21.26	j	51.33	i
1987	15.07	d	19.69	j	21.93	i	34.50	a	44.70	d	53.53	a	57.98	i	56.29	j	49.76	i	43.31	j	29.89	k	20.62	j	36.95	h
1988	15.29	l	21.07	i	23.55	j	35.74	i	44.14	c	54.55		58.07	h	57.91	h	47.48	i	43.40	k	29.61	k	17.95	j	49.35	j
1989	16.07	k	14.61	j	31.07	h	37.00	j	45.19	b	50.77		59.12	k	55.85	h	50.08	j	39.64	j	29.23	j	19.18	l	47.98	j
1990	16.48	k	21.82	i	28.16	i	37.19	i	41.56	f	55.03		58.17	j	56.54	h	51.76	k	40.32	i	30.25	j	20.05	l	55.03	k
1991	15.36	j	23.45	i	22.48	j	31.57	i	42.78	d	51.07		55.57	i	55.32	i	48.80	j	40.48	i	26.92	k	19.98	j	46.92	j
1992	17.31	j	19.95	j	25.17	j	37.95	j	45.33	b	49.27		53.74	d	53.62	k	49.15	f	42.62	c	23.52	a	18.44	e	38.82	f
1993	19.29	c	17.02	b	29.23	e	31.91	b	43.67	b	51.00	a	56.02	c	56.08		48.12	e	39.28	b	24.47	a	19.60	b	36.31
1994	19.84	c	17.92	c	28.88	b	33.70	b	46.07	a	56.43	a	58.59	b	57.71	c	50.13	c	39.40	b	25.57	c	22.94	d	38.10
1995	18.46	e	25.74	c	25.11	d	29.05	i	38.60	a	49.71	b	54.69		58.82	c	49.68	p	38.77	r	32.55	s	21.50	g	38.73	e
1996	18.26	l	22.44	l	25.59	n	34.71	k	47.65	e	53.27		59.94	f	57.21	j	46.28	a	39.57	d	30.30	b	21.72	b	39.80	f
1997	19.83	b	18.22	c	29.64	b	30.87		44.60	b	53.15		57.85	a	57.44	f	52.93	a	38.76	b	27.83	d	20.74	b	35.86	a
1998	22.43	c	21.02	a	25.81	e	30.04	g	45.02	a	49.90	a	60.03	b	57.60	b	54.50	c	40.78	b	33.52	a	25.14	b	39.61	a
1999	22.76	j	18.90	g	31.53	a	32.18	b	41.46	d	51.05	b	59.24	f	56.76	f	48.54	c	41.24	b	35.16	a	22.22	a	37.92	d
2000	23.25	a	26.15	c	26.72	a	36.45	h	46.95	b	54.40	d	59.84		59.52	e	51.74	e	41.50	a	23.16	b	21.08	e	39.48	a
2001	17.87	e	19.42	b	26.67	a	35.10		44.60	a	54.62	a	57.85	a	56.48	a	49.64	a	40.02	c	30.81	a	20.15	a	37.77
2002	19.80	d	18.71	b	23.44	e	38.15	d	44.24		56.28		63.05		59.45	c	51.85	c	39.09	c	28.83	a	21.74	d	38.72
2003	27.89	c	19.83	b	31.48	g	35.43	b	45.81		51.43		61.61		58.47		48.48	b	44.50	b	28.81	c	23.84		40.55	a
2004	19.24		17.60	d	32.62	b	33.62	a	45.17	b	52.02	a	56.63	p	53.03	b	46.64	i	38.26	b	26.73	b	21.91	c	34.02	b
2005	22.03	b	20.71	b	24.27		34.17	a	44.19	b	51.88		62.23		56.72	b	52.62	b	41.57	c	31.77		20.60	b	38.57
2006	20.55	b	21.40	c	26.03	b	38.06	c	46.02	a	54.93	a	59.72	b	55.67	b	-----	z	38.93	d	33.86	e	23.98	h	39.52	b
2007	16.93	c	22.42	c	30.04	c	35.21	b	44.08		53.18		60.61		58.75	a	49.75	b	40.13	e	32.71	b	16.55	c	38.36
2008	11.85	g	18.11	a	20.98		27.69	c	40.63	a	52.87	c	59.35		57.52		50.34	a	41.53	a	33.82		21.44		38.57	a
2009	23.79		23.23		29.79		34.50		46.52		50.40		57.94		54.53		48.33		35.40		32.17		14.13		37.56
2010	19.10		12.95		22.47		32.95		41.35		54.65		59.11		56.42		50.93		39.68	i	28.36	a	27.03		36.85	a
2011	19.27		17.29		29.27		35.07		40.97		53.53		60.58		58.31		50.05		39.47		28.77		19.05		37.64
2012	22.18		15.83		29.94		38.52		45.89		57.12		59.03		55.42		48.95	a	38.87		31.82		19.27		38.57
2013	14.69		14.61		22.87		30.52		40.82		54.18		57.72	a	55.00		48.37		35.85		27.80	h	18.23		35.71	a
2014	18.21		20.95		24.38	a	30.77		41.11		51.68		57.73	a	52.58		50.78		42.03		29.08		22.87		36.85
2015	23.50		24.12		30.75	a	35.00		42.55		56.70		56.90		56.92		52.50		44.02		27.20		19.55		39.14
2016	16.94		24.41		29.92	a	35.08		42.24		58.18		59.90		54.85		50.40		43.18		33.67		20.82		39.13
2017	17.39		27.11		33.53		35.13		43.48		56.57		59.28	a	55.06		50.68		40.32		34.77		26.06		39.95
2018	24.39		24.16		28.48		37.42		46.27		55.95		59.27		56.47		51.62		38.98		25.87		18.63		38.96
2019	18.56		17.12		25.53		36.08		38.97		50.95		57.53		56.77		52.72		36.40		31.27		18.85		36.73
2020	18.34		17.78		28.55		36.57		47.95		55.80		59.84		61.85		51.43		43.81		32.35		21.19		39.62
2021	19.97		20.61		26.44		35.88		45.84		57.62		61.94		58.26		55.82		41.60		36.31	a	27.45		40.64
2022	22.66		18.75		27.73		35.27		45.69		56.22		60.35		58.95		55.28		42.10		28.10		20.34		39.29
2023	18.66		18.19	a	20.55		32.37		46.43	a	50.88		62.21		59.87		52.45		42.60		31.80		24.45		38.37
2024	18.95		20.64		25.47		33.61	l	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	21.69	i
Period of Record Statistics
MEAN	19.30		19.34		26.42		32.97		43.23		52.50		58.07		56.21		49.85		39.61		29.19		20.49		38.08
S.D.	3.13		3.45		3.71		3.78		2.73		2.91		2.39		2.48		2.72		2.78		3.67		3.19		1.58
SKEW	0.32		0.43		-0.13		-0.91		-0.46		0.06		0.03		-0.12		-0.06		-0.46		-0.15		0.10		-0.95
MAX	27.89		27.11		33.53		38.52		47.95		58.18		63.05		61.85		55.82		44.50		36.31		27.45		40.64
MIN	12.97		12.95		19.24		23.70		35.74		46.40		53.08		51.35		43.42		32.66		20.57		14.13		33.77
YRS	39		39		37		39		51		54		45		42		42		40		41		39		21