RALSTON RESERVOIR, CO

Minimum of Minimum Temperature (Degrees Fahrenheit)

(056816)

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
1978	-----	z	-----	z	-----	z	-----	z	18.00	a	38.00		50.00		42.00		31.00		-----	z	-----	z	-----	z	-----	z
1979	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1980	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1981	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1982	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1983	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1984	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1985	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1986	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1987	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1988	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1989	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1990	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1991	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1992	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1993	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1994	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1995	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1996	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1997	-----	z	-----	z	-----	z	3.00		28.00		47.00		49.00		50.00		41.00	a	13.00	a	2.00	a	4.00		-----	z
1998	5.00		17.00	a	1.00	a	22.00		35.00	a	32.00	a	54.00		53.00		44.00		32.00		-----	z	-11.00	a	-----	z
1999	4.00	b	14.00	a	17.00	a	15.00	b	30.00	b	44.00		52.00		52.00		28.00		18.00		13.00	b	12.00		4.00	j
2000	13.00	a	16.00		22.00		19.00	d	32.00	a	40.00		54.00	b	51.00		29.00		29.00	a	5.00		2.00		2.00	i
2001	5.00		-7.00		15.00		25.00	c	28.00		40.00	a	56.00		54.00		35.00		26.00	a	7.00		13.00	a	-7.00	f
2002	1.00	a	-0.00		-1.00	b	19.00		27.00	a	44.00		57.00		45.00	b	42.00		13.00	a	9.00		11.00		-1.00	g
2003	13.00		-5.00	a	7.00	a	18.00		31.00		40.00		55.00	c	50.00	d	35.00	c	22.00	b	-0.00		12.00		-5.00	n
2004	-6.00		-5.00	a	22.00		24.00		25.00		41.00	a	48.00		44.00		37.00		32.00		6.00		-5.00		-6.00	b
2005	-0.00		16.00		19.00		23.00		29.00		42.00		52.00		46.00		41.00		27.00		14.00		-7.00		-7.00
2006	17.00		-12.00		12.00		24.00		32.00		48.00		52.00		49.00		33.00		21.00	b	2.00		4.00		-12.00	b
2007	-3.00		-11.00		15.00	a	21.00		32.00		38.00		56.00		53.00	i	39.00		28.00		14.00		3.00		-11.00	j
2008	-3.00		7.00		15.00		17.00		26.00	a	45.00		54.00		46.00		41.00		25.00		19.00		-14.00		-14.00	a
2009	-5.00		11.00		10.00		16.00	a	38.00	a	43.00		47.00		48.00		36.00		14.00		19.00		-9.00	a	-9.00	c
2010	-5.00		-0.00	a	8.00		27.00	a	27.00	a	45.00		50.00		52.00		44.00		28.00		11.00		1.00		-5.00	c
2011	-3.00		-17.00		17.00		21.00		31.00	a	47.00		54.00		55.00		37.00		20.00		15.00		-2.00		-17.00	a
2012	1.00		6.00		17.00		28.00		33.00		47.00		57.00		50.00		45.00		23.00		12.00		2.00		1.00
2013	-1.00		9.00		6.00		2.00		20.00	a	43.00		54.00		51.00		37.00		27.00		11.00	c	-9.00		-9.00	d
2014	-3.00		-14.00		3.00		14.00		28.00	a	40.00	a	52.00		50.00		31.00		31.00		-9.00		-12.00		-14.00	b
2015	-0.00		1.00		2.00		22.00		25.00		51.00		53.00		45.00	h	42.00		33.00		3.00		3.00		-0.00	h
2016	5.00		6.00	h	18.00	e	24.00		29.00	a	48.00	a	57.00		47.00		40.00	a	29.00	a	16.00		-7.00	e	-7.00	v
2017	10.00	s	10.00	a	20.00	a	23.00	c	26.00	a	46.00		55.00		51.00	a	40.00		21.00		21.00		1.00	a	-----	z
2018	1.00		8.00	f	16.00		20.00		35.00		49.00		50.00	d	50.00	c	36.00	e	17.00	c	12.00	b	7.00		1.00	w
2019	1.00	a	-12.00		-6.00		14.00		28.00		41.00	a	56.00		53.00		44.00		1.00	b	6.00	c	14.00		-12.00	g
2020	11.00		-0.00		16.00	d	12.00		33.00		42.00		56.00		46.00		29.00		2.00		22.00		10.00		-0.00	d
2021	6.00	a	-13.00		18.00		8.00		32.00		44.00		57.00		51.00	e	39.00		31.00		17.00		9.00		-13.00	f
2022	1.00		-11.00		1.00	a	12.00		30.00		39.00	a	57.00		58.00		42.00		31.00		7.00		-15.00	a	-15.00	c
2023	-8.00		-12.00		17.00		9.00		39.00		46.00		52.00		53.00		42.00		13.00		9.00		12.00		-12.00
2024	-14.00		4.00		15.00		30.00	l	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	1.27		-0.32		11.93		17.85		29.54		43.21		53.43		49.88		37.86		22.48		10.12		1.07		-9.15
S.D.	6.99		10.85		7.72		6.86		4.66		4.12		2.94		3.64		4.99		8.77		7.22		9.10		5.61
SKEW	0.33		0.13		-0.72		-0.74		-0.30		-0.44		-0.51		-0.14		-0.52		-0.93		-0.50		-0.24		0.48
MAX	17.00		17.00		22.00		28.00		39.00		51.00		57.00		58.00		45.00		33.00		22.00		14.00		1.00
MIN	-14.00		-17.00		-6.00		2.00		18.00		32.00		47.00		42.00		28.00		1.00		-9.00		-15.00		-17.00
YRS	26		25		27		27		28		28		28		26		28		27		26		27		13