GANN VALLEY 4NW, SD

Total of Snowfall (Inches)

(393217)

File last updated on April 24, 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)	JUL		AUG		SEP		OCT		NOV		DEC		JAN		FEB		MAR		APR		MAY		JUN		ANN
1897-98	-----	z	-----	z	-----	z	2.50		4.00		5.00		0.00		1.00		2.00		-----	z	-----	z	-----	z	14.50	f
1898-99	-----	z	-----	z	-----	z	2.00		-----	z	0.00		0.00		2.00		17.00		5.00		-----	z	-----	z	26.00	f
1899-00	-----	z	-----	z	-----	z	-----	z	0.00		5.00		-----	z	-----	z	13.00		-----	z	-----	z	-----	z	18.00	i
1900-01	-----	z	-----	z	-----	z	-----	z	2.00		1.30	x	3.00		2.50		-----	z	-----	z	-----	z	-----	z	7.50	i
1901-02	-----	z	-----	z	-----	z	-----	z	-----	z	6.50		4.00		8.00		4.00		-----	z	-----	z	-----	z	22.50	h
1902-03	-----	z	-----	z	-----	z	-----	z	0.50		20.50		5.00		13.50		1.00		2.00		-----	z	-----	z	42.50	f
1903-04	-----	z	-----	z	-----	z	0.00		12.00		9.00		5.00		7.00		1.00		10.00		-----	z	-----	z	44.00	e
1904-05	-----	z	-----	z	-----	z	-----	z	0.00		3.00		6.00		2.00		3.00		3.00		0.50		-----	z	17.50	e
1905-06	0.00		-----	z	-----	z	3.00		1.00		0.00		7.00	a	2.00		19.00		-----	z	-----	z	0.00		32.00	d
1906-07	0.00		-----	z	0.00		-----	z	-----	z	3.00		-----	z	3.00		3.00		7.00		1.00		-----	z	17.00	e
1907-08	-----	z	-----	z	-----	z	-----	z	0.00		-----	z	-----	z	5.00		8.00		6.00		-----	z	-----	z	19.00	h
1908-09	-----	z	-----	z	-----	z	-----	z	3.50		8.00		12.00		7.00		1.50		2.00		-----	z	-----	z	34.00	f
1909-10	-----	z	-----	z	-----	z	-----	z	17.00		25.00		12.80	x	3.00		-----	z	-----	z	-----	z	-----	z	45.00	i
1910-11	-----	z	-----	z	0.00		0.00		-----	z	-----	z	7.00		9.00		2.00		4.00		0.00		0.00		22.00	d
1911-12	0.00		0.00		0.00		5.00		3.00		5.00		0.00	x	-----	z	-----	z	-----	z	-----	z	-----	z	13.00	f
1912-13	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00		6.00		15.00	x	-----	z	0.00		0.00		6.00	h
1913-14	0.00		0.00		0.00		0.00		3.00		5.50		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	8.50	f
1914-15	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1915-16	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	2.50		0.00		0.00		2.50	i
1916-17	0.00		-----	z	0.00		2.50		-----	z	5.50		4.00		1.00		7.00		2.00		-----	z	-----	z	22.00	d
1917-18	-----	z	-----	z	-----	z	0.00		0.20		5.50		9.40		4.70		-----	z	0.00		-----	z	-----	z	19.80	f
1918-19	-----	z	-----	z	-----	z	0.00		6.00		3.60	x	0.00		18.00		2.00		1.00		-----	z	-----	z	27.00	f
1919-20	-----	z	-----	z	-----	z	0.50		21.00	a	1.00		2.00		4.50		17.00	a	0.00		0.00		0.00		46.00	c
1920-21	0.00		0.00		0.00		5.00		10.00		10.00		3.20		0.00		2.00		0.00		0.00		0.00		30.20
1921-22	0.00		0.00		0.00		0.00		4.10		6.00		12.00		14.00		3.50		0.00		0.00		0.00		39.60
1922-23	0.00		0.00		0.00		0.00		15.00		6.00		4.00		0.00		-----	z	0.00	a	0.00		0.00		25.00	a
1923-24	0.00		0.00	a	0.00		0.00		0.00	f	2.50		1.00		11.50		4.50		0.00		0.00		0.00		19.50	a
1924-25	0.00		0.00		0.00		0.00		2.00		11.50		6.00		1.40	a	0.00	a	0.00		0.00		0.00		20.90
1925-26	0.00		0.00		0.00		2.00		2.00		3.00		12.50		0.00		1.00		3.00		0.00		0.00		23.50
1926-27	0.00		0.00		0.00		0.00		3.00		2.00		0.00		2.00		7.00		5.00	a	0.00		0.00		19.00
1927-28	0.00		0.00		0.00		0.00		4.00		7.50		0.50		1.50		3.00		1.00		0.00		0.00		17.50
1928-29	0.00		0.00		0.00		0.00		1.00	b	0.50		17.00		5.40		0.00	e	0.00		0.00		0.00		23.90
1929-30	0.00		0.00		0.00		4.00		3.50		0.00		3.00		2.00		7.00		0.00		0.00		0.00		19.50
1930-31	0.00		0.00		0.00		0.00		0.00		0.00		0.70		0.00		4.20		0.00		0.00		0.00		4.90
1931-32	0.00		0.00		0.00		0.00		5.50		5.00		5.40		3.00		10.70		0.00		0.00		0.00		29.60
1932-33	0.00		0.00		0.00		4.00		0.50	a	4.20		0.00		3.00		8.50		0.00		0.00		0.00		20.20
1933-34	0.00		0.00		0.00		0.50		1.50		3.70		2.00		1.00		6.50		0.00		0.00		0.00		15.20
1934-35	0.00		0.00		0.00		0.00		0.00		2.50		3.00		1.10		0.80	a	15.00		0.00		0.00		22.40
1935-36	0.00		0.00		0.00		2.00		0.00		3.00		7.50		12.00	a	6.00		1.00		0.00		0.00		31.50
1936-37	0.00		0.00		0.00		1.00		6.00		3.50	c	11.50	a	5.00		10.00		5.00		0.00		0.00		42.00
1937-38	0.00		0.00		0.00		0.00		2.00		7.00		3.50		11.00		10.00		13.00		0.00		0.00		46.50
1938-39	0.00		0.00		0.00		0.00		0.00		0.00		3.40		8.50		2.50		0.00		0.00		0.00		14.40
1939-40	0.00		0.00		1.00		0.00		0.00		4.20		2.00		3.50		10.00		0.00		0.00		0.00		20.70
1940-41	0.00		0.00		0.00		0.00		7.50		4.00		2.00	a	3.00		6.50		0.00		0.00		0.00		23.00
1941-42	0.00		0.00		0.00		0.00		0.20		1.00		0.00		12.00		7.00		0.00		1.00		0.00		21.20
1942-43	0.00		0.00		0.00		0.00		0.50		3.00		3.00		0.00		-----	z	0.00		0.00		0.00		6.50	a
1943-44	0.00		0.00		0.00		0.00		2.10		0.00		2.00		0.00	e	7.50		0.00		0.00		0.00		11.60
1944-45	0.00		0.00		0.00		0.00		5.00		1.00		3.00		0.00	d	3.00		0.00		0.00		0.00		12.00
1945-46	0.00		0.00		0.00		0.00		0.00		6.00		0.50		4.00		8.00		0.00		0.00		0.00		18.50
1946-47	0.00		0.00		0.00		0.00		5.50		1.50		6.50		4.50		1.30		5.50		0.00		0.00		24.80
1947-48	0.00		0.00		0.00		0.00		14.50		0.70		0.00		4.50	a	3.90		0.00		0.00		0.00		23.60
1948-49	0.00		0.00		0.00		0.00		0.50		3.20		10.00		-----	z	-----	z	-----	z	-----	z	-----	z	13.70	e
1949-50	-----	z	-----	z	0.00		0.00		0.00		0.00		4.50		13.00		9.00		8.00		4.00		0.00		38.50	b
1950-51	0.00		0.00		0.00		0.00		0.00		3.00		3.00		4.00		7.00		9.20		0.00		0.00		26.20
1951-52	0.00		0.00		0.00		1.00		4.00		16.00		10.00		3.00		5.00		0.00		0.00		0.00		39.00
1952-53	0.00		0.00		0.00		0.00		0.20		2.00		3.50		8.50	a	1.50	a	4.00		0.00		0.00		19.70
1953-54	0.00		0.00		0.00		0.00		3.30		6.00		1.00		3.00		6.00		0.00		2.00		0.00		21.30
1954-55	0.00		0.00		0.00		3.00		3.00		2.00		3.00		10.00		1.00		0.00		0.00		0.00		22.00
1955-56	0.00		0.00		0.00		1.00		4.00		12.00		5.00		6.00		5.00		7.00		0.00		0.00		40.00
1956-57	0.00		0.00		0.00		0.00		1.00		4.00		4.50		7.00		3.50		5.00		0.00		0.00		25.00
1957-58	0.00		0.00		0.00		0.00		3.00		0.00		0.50		2.00		6.00		0.00		0.00		0.00		11.50
1958-59	0.00		0.00		0.00		0.00		1.50		3.00		2.00		7.50		1.00		0.50	a	0.00		0.00		15.50
1959-60	0.00		0.00		0.00		2.00		8.50		7.30		7.50		5.30		14.10		4.00		0.00		0.00		48.70
1960-61	0.00		0.00		0.00		0.00		0.00	b	4.30		2.00		3.00		5.60		2.00		0.00		0.00		16.90
1961-62	0.00		0.00		0.00		0.00		0.50		1.70		3.30		17.50		12.00		3.00		0.00		0.00		38.00
1962-63	0.00		0.00		0.00		0.00		0.00		4.00		7.50		2.00		6.00		2.00		0.00		0.00		21.50
1963-64	0.00		0.00		0.00		0.00		1.00		4.00		2.00		2.50		8.00		0.00		0.00		0.00		17.50
1964-65	0.00		0.00		0.00		0.00		0.00		8.00		0.60		3.50		10.00		0.00		0.00		0.00		22.10
1965-66	0.00		0.00		0.00		0.00		3.00		0.00		4.50		4.00		8.00		5.00		0.00		0.00	a	24.50
1966-67	0.00		0.00		0.00		0.00		2.00		-----	z	5.00		4.00		3.00		1.00		0.00		0.00		15.00	a
1967-68	0.00		0.00		0.00		0.00		0.00		1.00		0.00	a	0.50		0.00		3.00		0.00		0.00		4.50
1968-69	0.00		0.00		0.00		0.00		1.20	d	-----	z	5.00		20.30		1.50		0.00		0.00		0.00		28.00	a
1969-70	0.00		0.00		0.00		-----	z	0.50		6.00		3.50		1.00		10.00		15.50		0.00		0.00		36.50	a
1970-71	0.00		0.00		0.00		3.00		4.50		5.00		1.00		4.00		5.00		0.00		0.00		0.00		22.50
1971-72	0.00		0.00		0.00		4.00	a	2.80		10.80		1.00		3.50		0.00		5.00		0.00		0.00		27.10
1972-73	0.00		0.00		0.00		2.00		10.00		7.50		5.50		3.00		0.00		0.00		0.00		0.00		28.00
1973-74	0.00		0.00		0.00		0.00		6.00		5.00		0.50		4.00		2.00	b	0.00		0.00		0.00		17.50
1974-75	0.00		0.00		0.00		0.00		2.10		2.50		12.30		1.80		14.30		0.00		0.00		0.00		33.00
1975-76	0.00		0.00		0.00		2.50		4.00		2.00		4.30		4.10		7.20		0.00		0.00		0.00		24.10
1976-77	0.00		0.00		0.00		4.50		1.70		3.00		1.80		5.20		4.40		0.20		0.00		0.00		20.80
1977-78	0.00		0.00		0.00		0.00		5.50		8.40		3.30		7.50		1.00		7.00		0.00		0.00		32.70
1978-79	0.00		0.00		0.00		0.00		2.10		3.20		6.70		2.00		1.10		8.20		0.90		0.00		24.20
1979-80	0.00		0.00		0.00		0.00	d	2.00		0.00		1.00		2.10		6.00		0.00		0.00		0.00		11.10
1980-81	0.00		0.00		0.00		3.00		1.00		3.50		0.50		1.00		0.00		0.00		0.00		0.00		9.00
1981-82	0.00		0.00		0.00		0.00		4.00		3.50		10.80		0.30		7.00		10.00		0.00		0.00		35.60
1982-83	0.00		0.00		0.00		2.00		1.50		3.00		0.50		0.00		7.50		2.30		0.00		0.00		16.80
1983-84	0.00		0.00		0.00		0.00		9.50		7.00		1.50		7.00		11.50	b	0.00		0.00		0.00		36.50
1984-85	0.00		0.00		0.00		0.00		0.00		3.50		8.80		3.30		13.80		2.50		0.00		0.00		31.90
1985-86	0.00		0.00		0.00		0.00		17.50		9.00		4.00		2.50		6.00		6.00		0.00		0.00		45.00
1986-87	0.00		0.00		0.00		0.00		5.00		0.10		2.40	c	2.60	a	8.60		0.00		0.00		0.00		18.70
1987-88	0.00		0.00		0.00		0.00		7.40		17.00	a	4.00		5.70		7.70		2.50		0.00		0.00		44.30
1988-89	0.00		0.00		0.00		0.00		2.20		8.10		0.00		8.70		18.00		2.00		0.00		0.00		39.00
1989-90	0.00		0.00		0.00		0.00		6.00	a	2.00		0.00	a	13.50		0.00	d	0.00	a	0.00		0.00		21.50
1990-91	0.00		0.00		0.00		0.00	a	0.00		7.00		2.00	b	11.00		0.00	d	0.00	c	0.00		0.00		20.00
1991-92	0.00		0.00		0.00		0.00		6.00		0.00	a	0.00	c	11.00	a	0.00	a	1.00		0.00		0.00		18.00
1992-93	0.00		0.00		0.00		0.00		3.00	a	1.00		4.00		12.00	a	0.00	b	3.00	b	0.00		0.00		23.00
1993-94	0.00		0.00		0.00		0.00		14.00	a	7.00		12.00		16.00		0.00	c	6.00		0.00	a	0.00		55.00
1994-95	0.00		0.00		0.00		0.00		3.00		8.00		3.00		1.10		8.00	a	30.00		0.00		0.00		53.10
1995-96	0.00		0.00		0.00		0.00	b	6.00		4.00		12.00		7.00		9.00		3.00		0.00		0.00		41.00
1996-97	0.00		0.00		0.00		0.00		0.00	d	0.00	g	2.00	e	13.00		1.00	d	0.00	b	0.00		0.00		16.00	a
1997-98	0.00		0.00		0.00		0.00	a	1.50		1.00		10.00	a	0.00	b	0.00	f	0.00	a	0.00		0.00		12.50	a
1998-99	0.00		0.00		0.00		0.00	b	0.00	b	0.00	c	0.00	f	0.00	d	0.00	b	0.00	a	0.00		0.00		0.00	a
1999-00	0.00	a	0.00		0.00		0.00	b	0.00	a	3.00	a	0.00	e	0.00	c	0.00		0.00	c	0.00		0.00		3.00
2000-01	0.00		0.00		0.00		0.00		0.00	f	0.00	i	0.00	e	0.00	h	0.00	a	0.00	d	0.00		0.00	a	0.00	c
2001-02	0.00		0.00		0.00		0.00		0.00	d	0.00	c	0.00	d	0.00	b	0.00	g	0.00	c	0.00		0.00		0.00	a
2002-03	0.00		0.00		0.00		7.00		0.10		0.00	b	5.00	a	0.00	e	0.00	d	0.00	b	0.00		0.00		12.10
2003-04	0.00		0.00		0.00		0.00		9.00		4.00		3.00	b	3.00		6.00		0.00		0.00		0.00		25.00
2004-05	0.00		0.00		0.00		0.00		0.00		0.00	a	7.00	e	3.50	a	0.00	c	0.00		0.00		0.00		10.50
2005-06	0.00		0.00		0.00		0.00		9.00		5.00	a	0.00		9.00		9.00		2.00		0.00		0.00		34.00
2006-07	0.00		0.00		0.00		1.00		0.00		9.50		0.00		13.00		7.00		4.00		0.00		0.00		34.50
2007-08	0.00		0.00	u	0.00		0.00		0.00		8.00		4.00		4.00		10.00		6.00		0.00		0.00		32.00	a
2008-09	0.00		0.00		0.00		0.00		3.00		10.00		7.00		7.00		15.00		12.00		0.00		0.00	j	54.00	a
2009-10	0.00	i	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
Period of Record Statistics
MEAN	0.00		0.00		0.01		0.71		3.48		4.61		3.97		5.08		5.50		2.72		0.10		0.00		25.12
S.D.	0.00		0.00		0.10		1.43		4.32		4.36		3.72		4.62		4.71		4.46		0.49		0.00		11.35
SKEW	0.00		0.00		9.54		2.17		1.88		1.89		1.12		1.15		0.79		3.04		6.35		0.00		0.56
MAX	0.00		0.00		1.00		7.00		21.00		25.00		17.00		20.30		19.00		30.00		4.00		0.00		55.00
MIN	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		3.00
YRS	93		89		94		99		102		101		103		105		99		101		94		92		74