KEYSTONE, SD

Minimum of Minimum Temperature (Degrees Fahrenheit)

(394556)

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
1990	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	30.00	c	20.00		8.00		-31.00	a	-----	z
1991	-17.00	a	4.00		3.00	a	16.00		26.00	a	41.00	a	45.00		47.00	a	24.00		-4.00	a	-7.00	d	-0.00	a	-17.00	k
1992	-6.00	a	6.00	b	11.00		13.00	a	27.00	a	35.00		38.00		33.00		27.00		11.00	c	3.00		-17.00	b	-17.00	j
1993	-17.00		-23.00	a	-2.00	a	18.00		27.00	b	34.00	b	39.00		44.00		23.00	a	3.00	a	-12.00	a	2.00	a	-23.00	j
1994	-7.00	c	-23.00	a	7.00	a	10.00		25.00		36.00	b	40.00		41.00		31.00		22.00	b	9.00	b	3.00		-23.00	k
1995	-12.00		-11.00		-16.00	a	13.00	b	28.00		32.00		39.00		41.00		21.00		18.00		-5.00		-14.00		-16.00	c
1996	-24.00		-32.00		-17.00		17.00		24.00		38.00		42.00		44.00		28.00		12.00		-2.00		-21.00		-32.00
1997	-17.00		3.00		-3.00		2.00		23.00	d	42.00		38.00		46.00		33.00		-----	z	-----	z	-----	z	-----	z
Period of Record Statistics
MEAN	-14.29		-10.86		-2.43		12.71		25.71		36.86		40.14		42.29		27.13		11.71		-0.86		-11.14		-24.00
S.D.	6.37		15.49		10.77		5.47		1.80		3.67		2.54		4.68		4.19		9.46		7.86		13.11		11.31
SKEW	-0.01		-0.11		-0.31		-1.09		-0.28		0.23		1.07		-1.12		-0.09		-0.56		0.01		-0.20		0.00
MAX	-6.00		6.00		11.00		18.00		28.00		42.00		45.00		47.00		33.00		22.00		9.00		3.00		-16.00
MIN	-24.00		-32.00		-17.00		2.00		23.00		32.00		38.00		33.00		21.00		-4.00		-12.00		-31.00		-32.00
YRS	7		7		7		7		7		7		7		7		8		7		7		7		2