TWIN LAKES RESERVOIR, CO

Minimum of Minimum Temperature (Degrees Fahrenheit)

(058501)

File last updated on April 23, 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	12.00		28.00		35.00		31.00		27.00	e	12.00		-11.00		-23.00	e	-----	z
1968	-18.00	b	-14.00		-11.00		-0.00		15.00	a	24.00		26.00		27.00		21.00		10.00		-13.00		-11.00	e	-18.00	h
1969	-24.00		-27.00		-20.00	k	-0.00		18.00		24.00		31.00		29.00		26.00		5.00		1.00		-31.00		-31.00	k
1970	-24.00	o	-15.00	l	-22.00		-11.00		12.00		23.00		33.00		35.00		18.00		5.00		2.00	a	-14.00		-----	z
1971	-30.00		-27.00		-19.00		6.00		15.00		20.00		23.00		30.00		15.00		3.00	k	-7.00		-20.00		-30.00	k
1972	-30.00		-17.00	k	-18.00		6.00	a	12.00		18.00		28.00		28.00		24.00	f	6.00	c	-7.00		-30.00	a	-30.00	v
1973	-24.00	a	-15.00		-12.00		-11.00		7.00	a	15.00		30.00		27.00	a	16.00		-0.00		-0.00		-10.00	d	-24.00	g
1974	-40.00		-19.00		-15.00	c	-0.00		8.00		14.00		33.00		32.00		17.00		14.00		-12.00		-21.00	a	-40.00	d
1975	-30.00	e	-18.00	g	-29.00	e	-19.00		2.00	b	21.00	m	29.00		22.00		18.00		5.00		-7.00		-3.00		-----	z
1976	-21.00		-20.00		-----	z	-16.00		1.00	a	13.00		34.00		30.00		25.00	a	-0.00		-18.00		-12.00		-----	z
1977	-15.00		-26.00		-22.00		-3.00		18.00		28.00		31.00		26.00		20.00		7.00		-1.00		-11.00		-26.00
1978	-32.00	b	-15.00		-1.00	h	1.00	j	14.00	i	32.00	i	36.00	k	30.00	h	17.00		14.00	j	-2.00	j	-27.00	k	-----	z
1979	-31.00	i	-24.00	i	-10.00	j	-6.00	i	15.00	f	23.00		35.00	d	35.00	h	24.00	k	4.00	i	-12.00	j	-5.00	l	-----	z
1980	-18.00	i	-28.00	i	-13.00	j	-5.00	h	24.00	j	28.00	i	39.00	i	32.00	j	27.00	i	9.00	j	-3.00	f	4.00	j	-----	z
1981	-6.00	k	-6.00	i	-10.00	j	3.00	f	20.00	g	28.00	d	37.00	h	37.00	f	32.00		17.00	j	5.00	k	-13.00	j	-----	z
1982	-21.00	k	-18.00	i	-1.00	i	3.00	h	17.00	a	27.00		35.00		40.00		28.00		13.00	k	-5.00	k	-13.00	k	-----	z
1983	-10.00	j	-9.00	i	-4.00	h	-14.00	a	19.00	g	27.00		35.00		39.00		24.00		19.00	j	-0.00	k	-20.00	n	-----	z
1984	-21.00	j	-13.00	j	-18.00	i	-1.00	h	14.00	d	24.00		36.00		34.00	d	24.00	k	8.00	i	-3.00	k	-13.00	l	-----	z
1985	-23.00	i	-37.00		-4.00	j	-1.00	h	24.00		32.00		37.00	h	36.00	i	21.00	k	21.00	i	3.00	l	-13.00	l	-----	z
1986	-5.00	j	-12.00	i	2.00	j	15.00	h	21.00	a	31.00		39.00		38.00	j	28.00	i	11.00	i	6.00	l	-12.00	j	-----	z
1987	-23.00	d	-15.00	i	-12.00	i	3.00		26.00	d	33.00	a	35.00	i	35.00	j	27.00	i	25.00	j	-3.00	k	-10.00	j	-----	z
1988	-23.00	l	-10.00	i	-3.00	i	3.00	i	21.00	c	31.00		38.00	h	37.00	h	21.00	i	22.00	k	1.00	k	-25.00	j	-----	z
1989	-25.00	k	-45.00	j	-6.00	h	3.00	j	17.00	b	31.00		33.00	k	34.00	h	27.00	j	10.00	j	-6.00	j	-12.00	l	-----	z
1990	-15.00	k	-10.00	i	5.00	i	14.00	i	18.00	f	26.00		38.00	j	35.00	h	31.00	k	12.00	i	3.00	j	-24.00	l	-----	z
1991	-15.00	j	-4.00	i	-2.00	j	-3.00	i	14.00	d	30.00		35.00	i	36.00	i	24.00	j	7.00	i	-8.00	k	-10.00	j	-----	z
1992	-6.00	j	-8.00	j	-4.00	j	7.00	j	27.00	b	30.00		33.00	d	28.00	k	26.00	f	16.00	c	-7.00		-13.00	e	-----	z
1993	-11.00	c	-15.00	b	-7.00	d	10.00	b	21.00	b	28.00	a	33.00	c	34.00		24.00	e	4.00	b	-6.00	a	-7.00	b	-----	z
1994	-13.00	c	-21.00	c	1.00	b	9.00	b	22.00	a	32.00	a	34.00	b	38.00	c	29.00	c	16.00	b	-2.00	c	-12.00	d	-----	z
1995	-14.00	e	-15.00	b	-8.00	d	6.00	i	18.00	a	30.00	b	34.00		39.00	c	19.00	p	14.00	r	3.00	s	-10.00	g	-----	z
1996	-14.00	l	-26.00	l	-10.00	n	8.00	k	23.00	e	31.00		40.00	f	33.00	j	13.00	a	8.00	d	7.00	a	-21.00	b	-----	z
1997	-18.00	a	-14.00	c	-5.00	b	-3.00		11.00	b	33.00		33.00	a	37.00	f	32.00	a	9.00	b	-4.00	c	-5.00	b	-18.00	w
1998	-11.00	c	-9.00	a	-6.00	e	-2.00	g	23.00	a	26.00	a	42.00	b	35.00	b	31.00	c	21.00	b	10.00	a	-10.00	b	-----	z
1999	-16.00	j	-24.00	c	6.00	a	8.00	a	13.00	d	29.00	b	42.00	f	37.00	f	20.00	b	11.00	b	-1.00	a	-1.00	a	-----	z
2000	-15.00	a	-12.00	c	2.00	a	12.00	h	19.00	b	32.00	d	40.00		40.00	e	22.00	e	21.00	a	-6.00	b	-6.00	e	-----	z
2001	-11.00	e	-9.00	b	-8.00	a	4.00		17.00	a	25.00	a	32.00	a	35.00	a	24.00	a	12.00	c	-5.00	a	-8.00		-11.00	q
2002	-9.00	c	-8.00	b	-23.00	d	15.00	d	21.00		34.00		41.00		36.00	c	31.00	c	12.00	c	-0.00	a	-2.00	d	-----	z
2003	3.00	c	-16.00	b	-5.00	f	10.00	b	17.00		27.00		38.00		38.00		24.00	b	19.00	b	-5.00	b	-4.00		-16.00	s
2004	-22.00		-17.00	d	-4.00	b	12.00	a	24.00	b	19.00	a	33.00	p	27.00	b	22.00	i	14.00	b	-11.00	b	-14.00	c	-----	z
2005	-12.00	b	-16.00	b	-7.00		11.00	a	20.00	b	25.00		37.00		34.00	b	27.00	b	21.00	c	2.00		-12.00	b	-16.00	p
2006	-18.00	b	-14.00	b	-3.00	b	12.00	c	19.00	a	32.00		35.00	b	33.00	b	-----	z	13.00	d	-13.00	e	-7.00	g	-----	z
2007	-20.00	b	-13.00	c	-18.00	c	9.00	b	20.00		22.00		39.00		38.00	a	22.00	b	10.00	e	1.00	b	-18.00	c	-20.00	w
2008	-19.00	e	-11.00	a	-21.00		-4.00	c	13.00	a	26.00	c	36.00		35.00		30.00	a	12.00	a	10.00		-11.00		-21.00	o
2009	-5.00		-2.00		2.00		6.00		26.00		30.00		36.00		31.00		20.00		5.00		1.00		-12.00		-12.00
2010	-11.00		-18.00		-11.00		5.00		12.00		31.00		34.00		37.00		25.00		9.00	i	-3.00	a	-0.00		-18.00	j
2011	-15.00		-27.00		-0.00		15.00		14.00		29.00		38.00		38.00		27.00		8.00		5.00		-17.00		-27.00
2012	-10.00		-18.00		-3.00		17.00		24.00		25.00		38.00		36.00		26.00	a	6.00		8.00		-15.00		-18.00	a
2013	-23.00		-14.00		-15.00		1.00		-7.00		26.00		35.00	a	33.00		19.00		15.00		4.00	h	-17.00		-23.00	i
2014	-9.00		-20.00		-8.00	a	2.00		11.00		26.00		34.00		34.00		28.00		20.00		-4.00		-20.00		-20.00	a
2015	-17.00		-8.00		-6.00	a	16.00		24.00		33.00		38.00		35.00		31.00		14.00		1.00		-16.00		-17.00	a
2016	-23.00		-12.00		-2.00	a	6.00		22.00		33.00		39.00		35.00		26.00		18.00		-1.00		-13.00		-23.00	a
2017	-24.00		-2.00		-3.00		7.00		22.00		30.00		35.00	a	33.00		23.00		15.00		3.00		-5.00		-24.00	a
2018	-9.00		-21.00		-0.00		10.00		21.00		30.00		35.00		34.00		22.00		8.00		3.00		-6.00		-21.00
2019	-12.00		-17.00		-1.00		10.00		22.00		24.00		32.00		33.00		26.00		-2.00		-6.00		-11.00		-17.00
2020	-11.00		-15.00		-2.00		-0.00		25.00		30.00		38.00		38.00		21.00		-0.00		5.00		-8.00		-15.00
2021	-8.00		-11.00		-1.00		11.00		24.00		31.00		41.00		36.00		27.00		18.00		-0.00	a	-1.00		-11.00	a
2022	-9.00		-21.00		-11.00		8.00		22.00		31.00		42.00		40.00		31.00		14.00		-0.00		-6.00		-21.00
2023	-3.00		-9.00	a	-9.00		1.00		26.00	a	32.00		37.00		37.00		31.00		1.00		-1.00		2.00		-9.00	b
2024	-2.00		-12.00		-3.00		14.00	l	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	-16.29		-16.02		-8.47		3.82		17.45		27.26		34.93		33.86		24.19		10.57		-2.24		-11.59		-20.07
S.D.	8.90		6.96		8.37		8.86		6.96		4.98		4.01		4.27		5.08		6.38		6.40		7.60		7.68
SKEW	-0.37		-0.55		-0.59		-0.88		-1.23		-1.11		-0.58		-0.69		-0.25		-0.14		-0.23		-0.52		-0.94
MAX	3.00		-2.00		6.00		17.00		27.00		34.00		42.00		40.00		32.00		21.00		10.00		2.00		-9.00
MIN	-40.00		-37.00		-29.00		-19.00		-7.00		13.00		23.00		22.00		13.00		-2.00		-18.00		-31.00		-40.00
YRS	41		40		38		39		51		54		45		42		42		40		41		41		15