ROCK RAPIDS, IA

Total of Snowfall (Inches)

(137147)

File last updated on April 19, 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
1892-93	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	13.20	w	0.00		0.00		0.00	j
1893-94	0.00		0.00		0.00		0.00		2.00	a	4.00		6.50		0.00		3.00		0.00		0.00		0.00		15.50
1894-95	0.00		0.00		0.00		0.50		0.00		0.00		10.00		0.00		0.50	a	0.00		0.00		0.00		11.00
1895-96	0.00		0.00		0.00		0.00		6.00		1.00		0.00		0.50		6.50	b	0.00	j	0.00		0.00		14.00	a
1896-97	0.00		0.00		0.00		0.00		12.00		0.00		10.50		5.00		8.00		0.00	a	0.00		0.00		35.50
1897-98	0.00		0.00		0.00		0.00	a	0.00	n	4.00	b	4.50		-----	z	4.00	b	0.00		0.00		-----	z	12.50	c
1898-99	0.00	a	-----	z	-----	z	1.00		-----	z	-----	z	-----	z	3.50		-----	z	-----	z	-----	z	-----	z	4.50	i
1899-00	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1900-01	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1901-02	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1902-03	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	0.00	l
1903-04	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	3.00		4.00		3.00		0.00		0.00		0.00		10.00	f
1904-05	0.00	a	0.00		0.00		0.00		0.00		2.50	t	7.00		6.00		1.50	d	3.50		0.00		0.00		18.00	a
1905-06	0.00		0.00		0.00		10.00		3.50		0.00		7.50		3.50		5.20		0.00		-----	z	0.00		29.70	a
1906-07	0.00		0.00		0.00		3.00		2.50		3.00		4.00		2.00	b	4.00		0.00	a	5.50	a	0.00		24.00
1907-08	0.00		0.00		0.00		0.00		1.00		6.50		2.00		12.50		7.00		0.50		0.00		0.00		29.50
1908-09	0.00		0.00		0.00		-----	z	-----	z	-----	z	-----	z	0.00	c	6.00		-----	z	0.00		0.00		6.00	e
1909-10	0.00		0.00		0.00		0.00		20.00		8.00		15.00	b	1.00		0.00		6.00		-----	z	0.00		50.00	a
1910-11	0.00		0.00	a	0.00		0.50		0.50		1.00		5.00		1.00		1.00		3.00		2.50		0.00		14.50
1911-12	0.00		0.00		0.00		2.50		2.20		11.50		11.50		0.50		8.70		0.00		0.00		0.00		36.90
1912-13	0.00		0.00		0.00		0.00		0.00		2.00		-----	z	4.00		2.10		1.90		0.00		-----	z	10.00	b
1913-14	-----	z	0.00		0.00		1.00		2.00		0.00		5.70		5.50		-----	z	0.50		0.00		0.00		14.70	b
1914-15	0.00		0.00		0.00		0.00		0.00		13.00		0.60	a	-----	z	11.20		0.00		0.00		0.00		24.80	a
1915-16	0.00		0.00		0.00		0.00		6.00		4.70		12.50		5.30		3.00		5.00		0.00		0.00		36.50
1916-17	0.00		0.00		0.00		3.00		0.70		5.70		16.00	c	4.20		18.00		0.60		0.00		0.00		48.20
1917-18	0.00		0.00		0.00		0.00		4.00		5.50	a	0.00	f	0.00	c	0.00	a	1.50		0.00		0.00		11.00	a
1918-19	0.00		0.00		0.00		0.00	a	0.20		0.30	c	0.00	b	0.50	g	4.00	b	4.00	a	0.00		0.00		8.50	a
1919-20	0.00		0.00		0.00		0.50		0.20	f	0.70	d	0.20	c	1.70	e	10.50	b	0.00	a	0.00		0.00		13.60	a
1920-21	0.00		0.00		0.00		0.00		0.00	a	10.80		0.10	c	0.00	c	1.10	a	0.00		0.00		0.00		12.00
1921-22	0.00		0.00		0.00		0.00		0.00	d	0.00	c	0.00	e	0.00	f	0.50	b	6.00		0.00		0.00		6.50	a
1922-23	0.00		0.00		0.00		0.00		0.00	a	0.30	c	0.00	d	0.00	b	0.40	g	0.00	a	0.00		0.00		0.30	a
1923-24	0.00		0.00		0.00		0.50	a	0.00	a	0.30	b	2.00	c	0.00	f	4.30	f	0.00		1.00		0.00		3.80	b
1924-25	0.00		0.00		0.00		0.00		0.20	a	5.00	g	0.20	e	1.60	c	0.00	a	0.00		0.00		0.00		2.00	a
1925-26	0.00		0.00		0.00		0.30	a	0.00	b	0.00	c	0.10	g	0.00	b	2.50	b	0.00	a	0.00		0.00		2.80	a
1926-27	0.00		0.00		0.00		0.00		0.00	e	9.60	a	0.00	b	0.00	d	1.00	b	2.50	a	0.00		0.00		13.10
1927-28	0.00		0.00		0.00		0.00		0.00	c	13.20		1.00		0.00	a	2.70	a	4.10		0.00		0.00		21.00
1928-29	0.00		0.00		0.00		0.00		4.00		2.00		21.50		15.00		1.20	a	10.00		0.00		0.00		53.70
1929-30	0.00		0.00	a	0.00		0.00	a	0.00	a	0.10	b	0.00	e	2.00	b	0.80		0.00		0.00		0.00		2.90
1930-31	0.00		0.00		0.00		1.00		0.00		0.00	b	0.00	a	0.00		0.00	c	0.00		0.00		0.00		1.00
1931-32	0.00		0.00		0.00		0.00		0.00	c	5.00	b	0.00	h	1.50	d	0.00	f	0.00		0.00		0.00		6.50	b
1932-33	0.00		0.00		0.00		0.00		12.40		0.00	b	0.00	a	0.00	c	10.50	b	0.00		0.00		0.00		22.90
1933-34	0.00		0.00		0.00		0.00		0.00		0.00	a	0.00	c	0.00	b	0.00	c	0.00		0.00		0.00		0.00
1934-35	0.00		0.00		0.00		0.00		0.00		7.80	a	0.00	c	0.00	c	1.00	a	0.00		0.00		0.00		8.80
1935-36	0.00		0.00		0.00		0.00		0.00	b	0.00	d	0.00	h	20.20		0.00	c	0.50		0.00		0.00		20.70	a
1936-37	0.00		0.00		0.00		0.00		0.00	c	0.00	d	3.40	d	2.10	a	1.00	a	0.00	c	0.00		0.00		6.50
1937-38	0.00		0.00		0.00		0.00	a	0.00	a	0.00	d	0.20	c	0.00	d	0.00	b	5.50		0.00		0.00		5.70
1938-39	0.00		0.00		0.00		0.00		0.00		0.20	d	0.00	a	0.00	d	0.50	c	0.00		0.00		0.00		0.70
1939-40	0.00		0.00		0.00		0.00		0.00		0.40	c	0.00	a	0.00	f	5.50	f	0.00		0.50		0.00		0.90	b
1940-41	0.00		0.00		0.00		0.00		0.50	e	0.00	e	0.00	b	0.00	e	1.50	c	0.00		0.00		0.00		2.00
1941-42	0.00		0.00		0.00		0.00		0.00	b	0.00	d	0.00	a	0.00	c	2.00	e	0.00		0.00		0.00		2.00
1942-43	0.00		0.00		0.00		0.00		0.00	c	0.00	d	2.80	e	0.00	b	0.50	d	0.00		0.50		0.00		3.80
1943-44	0.00		0.00		0.00		0.00		0.00	b	0.00	a	2.00		0.50	c	0.60	d	0.50		1.00		0.00		4.60
1944-45	0.00		0.00		0.00		0.00		2.00	a	0.00		0.00	e	0.00	d	0.00	b	4.00	a	0.00		0.00		6.00
1945-46	0.00		0.00		0.00		0.00		0.00	a	14.00	e	4.00		4.00		7.00		0.00		0.00		0.00		29.00
1946-47	0.00		0.00		0.00		0.00		8.50		4.00		13.20		2.60		0.40		4.70		1.00		0.00		34.40
1947-48	0.00		0.00		0.00		0.00		7.50		3.90	a	1.20		8.50	S	4.50		0.00		0.00		0.00		25.60
1948-49	0.00		0.00		0.00		0.00		9.20		6.50		6.50		1.00		15.80		2.00		0.00		0.00		41.00
1949-50	0.00		0.00		0.00		0.00		0.00		5.50		8.50		12.50		12.10		5.00		0.00		0.00		43.60
1950-51	0.00		0.00		0.00		0.00		0.00		3.00		4.50		19.50		25.50		2.00		0.00		0.00		54.50
1951-52	0.00		0.00		0.00		1.00		2.80		12.00	a	7.50		11.50		10.00		1.00		0.00		0.00		45.80
1952-53	0.00		0.00		0.00		0.00		3.50		4.00		8.50		8.50		9.50		2.50		0.00		0.00		36.50
1953-54	0.00		0.00		0.00		0.00		1.00		6.00		1.80		4.00		9.00		0.00		0.00		0.00		21.80
1954-55	0.00		0.00		0.00		0.00		8.80		0.50		2.70		9.80		5.30		0.00		0.00		0.00		27.10
1955-56	0.00		0.00		0.00		0.00		3.50		12.00		7.40		4.50		11.30		8.00		0.00		0.00		46.70
1956-57	0.00		0.00		0.00		0.00		5.20		3.40		1.70		4.80		14.50		6.00		0.00		0.00		35.60
1957-58	0.00		0.00		0.00		0.00		5.00		0.50		0.30		2.50		6.50		0.00		0.00		0.00		14.80
1958-59	0.00		0.00		0.00		0.00		0.50		3.50		3.20		12.80		6.50		0.50		0.00		0.00		27.00
1959-60	0.00		0.00		0.00		1.00		16.00		1.50		7.50		3.00		13.50		2.00		0.00		0.00		44.50
1960-61	0.00		0.00		0.00		0.00		0.00		6.80		2.50		16.50		14.50		0.20		0.00		0.00		40.50
1961-62	0.00		0.00		0.00		0.00		1.00		12.10		3.50		39.30		18.10		5.50		0.00		0.00		79.50
1962-63	0.00		0.00		0.00		0.50		0.00		3.80		8.30		4.80		4.10		0.00		0.00		0.00		21.50
1963-64	0.00		0.00		0.00		0.00		0.00		5.80		2.30		0.80		9.80		0.00		0.00		0.00		18.70
1964-65	0.00		0.00		0.00		0.00		1.00		6.70		4.50		17.50		16.00		0.00		0.00		0.00		45.70
1965-66	0.00		0.00		0.00		0.00		1.00		0.00		8.30		2.40		7.00		1.50		0.00		0.00		20.20
1966-67	0.00		0.00		0.00		1.00		4.00		10.50		8.00		12.50		1.00		0.00		0.00		0.00		37.00
1967-68	0.00		0.00		0.00		1.00		0.50		1.50		6.50		0.50		0.00		1.00		0.00		0.00		11.00
1968-69	0.00		0.00		0.00		0.00		1.50		29.00		16.50		24.50		3.00		0.00		0.00		0.00		74.50
1969-70	-----	z	0.00		0.00		0.00		1.80		14.00		5.90		0.50		19.40		0.00		0.00		0.00		41.60	a
1970-71	0.00		0.00		0.00		4.00		0.00		10.00		0.50	a	1.00		9.00		0.00		0.00		0.00		24.50
1971-72	0.00		0.00		0.00		0.00		7.90		10.00		0.50		8.50		3.00		1.50		0.00		0.00		31.40
1972-73	0.00		0.00		0.00		1.00		0.00		3.20		8.50		10.00		0.00		0.00		0.00		0.00		22.70
1973-74	0.00		0.00		0.00		0.00		-----	z	9.00		1.00		1.40		2.00		1.00		0.00		0.00		14.40	a
1974-75	0.00		-----	z	0.00		0.00		2.00		2.00		20.50		3.50		11.00		0.00		0.00		0.00		39.00	a
1975-76	0.00		0.00		0.00		0.00		11.00		2.00		2.00		1.50		7.50		0.00		0.00		0.00		24.00
1976-77	0.00		0.00		0.00		0.00		0.00		-----	z	2.00		-----	z	16.00		0.00		0.00		0.00		18.00	b
1977-78	0.00		0.00		0.00		0.00		8.20		3.50	a	-----	z	-----	z	-----	z	0.00		0.00		0.00		11.70	c
1978-79	0.00		0.00		0.00		0.00		-----	z	-----	z	13.50		1.00	g	-----	z	-----	z	0.00		0.00		13.50	e
1979-80	0.00		0.00		0.00		0.00		-----	z	0.50		-----	z	-----	z	1.00	a	0.00	b	0.00		0.00		1.50	c
1980-81	0.00		0.00		0.00		1.00		0.50		4.00		0.00		3.20		0.00		0.00		0.00		0.00		8.70
1981-82	0.00		0.00		0.00		0.00	a	4.00		4.50		13.00		-----	z	1.00		5.00		0.00		0.00		27.50	a
1982-83	0.00		0.00		0.00		7.00		1.00	a	12.00		2.00		2.00	b	12.00		5.00		0.00		0.00		41.00
1983-84	0.00		0.00		0.00		0.00		9.50	a	5.00		4.00		6.20	a	9.60	a	4.00		0.00		0.00		38.30
1984-85	0.00		0.00		0.00		0.00		0.00		2.80	c	2.00	a	0.50		10.50		0.00		0.00		0.00		15.80
1985-86	0.00		0.00		0.00		0.00		8.30	d	5.50	a	3.00	b	0.00		5.00		0.50		0.00		0.00		22.30
1986-87	0.00		0.00		0.00		0.00		4.00	a	1.00	a	1.00	b	0.00		2.00		0.00		0.00		0.00		8.00
1987-88	0.00		0.00		0.00		0.00		4.00		6.00		7.00		3.00	b	0.00	a	5.00		0.00	a	0.00		25.00
1988-89	0.00		0.00		0.00		0.00		1.50	b	-----	z	1.00		3.00	e	11.00	a	0.00		0.00		0.00		16.50	a
1989-90	0.00		0.00		0.00		0.00		0.00		2.00		0.00		4.00	b	6.00		0.00		0.00		0.00		12.00
1990-91	0.00		0.00		0.00		1.50		8.50		7.50	a	7.00		5.00		0.50	b	0.00		0.00		0.00		30.00
1991-92	0.00		0.00		0.00		0.00	c	15.00	a	0.00	a	0.00	e	8.50	a	8.50		0.00	a	0.00		0.00		32.00
1992-93	0.00		0.00		0.00		0.00		1.50	a	9.00		5.00	d	9.00		9.00		0.00		0.00		0.00		33.50
1993-94	0.00		0.00		0.00		0.00		8.30		7.00		18.00	a	12.00	b	0.00		10.00	a	0.00		0.00		55.30
1994-95	0.00		0.00		0.00		0.00		14.00		5.20		0.00		2.30		8.00	a	4.00		0.00		0.00		33.50
1995-96	0.00		0.00		0.00		1.50		2.00		6.00	e	15.20		2.00	a	8.10	a	3.50		0.00		0.00		38.30
1996-97	0.00		0.00		0.00		0.00		3.30	e	14.60	b	8.30	e	14.60	a	0.00	c	4.00	a	0.00		0.00		44.80
1997-98	0.00		0.00		0.00		0.00		6.00		1.50	c	7.00	g	2.50	a	4.00	c	1.00		0.00		0.00	a	15.00	a
1998-99	0.00		0.00		0.00		0.00		6.50		6.00	c	10.00	c	3.50	b	9.00		0.00	a	0.00		0.00		35.00
1999-00	0.00		0.00		0.00		0.00		0.50		3.00	a	5.00	e	1.50		3.00		3.00		0.00		0.00	a	16.00
2000-01	0.00		0.00	a	0.00		0.00		6.00	a	13.00	h	5.00	e	2.30	b	3.50		2.00	a	0.00		0.00		18.80	a
2001-02	0.00		0.00		0.00		0.00		6.10		1.00	a	0.00	f	4.50		2.70	b	3.00	a	0.00		0.00		17.30	a
2002-03	0.00		0.00		0.00		4.00	a	0.00		0.00	c	0.00	i	5.00	c	5.00	a	7.00		0.00		0.00		21.00	a
2003-04	0.00		0.00		0.00		0.00		5.00	a	13.00		10.50	a	13.50	c	2.00	a	0.00		0.00	a	0.00		44.00
2004-05	0.00	a	0.00		0.00		0.00		0.00		0.00	b	6.00	f	1.50		11.00	a	0.00		0.00		0.00		12.50	a
2005-06	0.00		0.00		0.00		0.00		2.50	a	9.00	f	2.00	a	3.00	c	8.50		0.00		0.00		0.00		16.00	a
2006-07	0.00		0.00		0.00		2.00		3.00		1.00		9.00	c	8.50	f	9.50	a	2.50		0.00		0.00		27.00	a
2007-08	0.00		0.00		0.00		0.00		0.00	a	12.00	a	7.00	a	8.00		13.80		3.00		0.00	a	0.00		43.80
2008-09	0.00		0.00		0.00		0.00		2.50		10.00		6.50		1.00	a	5.00	a	5.00		0.00		0.00		30.00
2009-10	0.00		0.00		0.00		2.00		0.00	a	19.10	a	8.60	a	17.50	b	0.00		0.00		0.00		0.00	a	47.20
2010-11	0.00		0.00		0.00	a	0.00		3.00	a	16.30		10.80	w	12.40	x	-----	z	-----	z	-----	z	-----	z	19.30	f
2011-12	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	6.10	x	8.00	y	-----	z	-----	z	-----	z	0.00		0.00	k
2012-13	0.00		0.00		0.00		0.00		0.00		6.00		1.50		8.20		0.80		16.40		3.00		0.00		35.90
2013-14	0.00		0.00		0.00		0.00		3.20		8.50		5.50		8.60		4.00		5.00		0.00		0.00		34.80
2014-15	0.00		0.00		0.00		0.00		5.10	b	3.80		5.60		6.80		0.00	a	0.00		0.00		0.00		21.30
2015-16	0.00		0.00		0.00		0.00		15.00	a	24.90		3.70		10.10		4.80		0.00		0.00		0.00		58.50
2016-17	0.00		0.00		0.00		0.00		3.10		8.00		7.00		5.00		8.40		0.00		0.00		0.00		31.50
2017-18	0.00		0.00		0.00		0.00		0.00		6.50		7.00		13.00		6.30		17.60		0.00		0.00		50.40
2018-19	0.00		0.00		0.00		2.50		0.50		2.70		3.50		24.30		3.00		2.50		0.00		0.00		39.00
2019-20	0.00		0.00		0.00		0.00		4.70		6.30		9.80		2.00		7.50		5.90		0.00		0.00		36.20
2020-21	0.00		0.00		0.00		4.10		4.00	a	7.00		4.50		4.40		8.00		0.50		0.00		0.00		32.50
2021-22	0.00		0.00		0.00		0.00		0.10		8.00		4.00		1.50		0.00		0.20		0.00		0.00		13.80
2022-23	0.00		0.00		0.00		0.00		2.60		12.90		23.70		8.00		7.90		0.50		0.00		0.00		55.60
2023-24	0.00		0.00		0.00		1.00		0.30		0.00		16.10		1.00		0.50		0.00	k	-----	z	-----	z	18.90	c
Period of Record Statistics
MEAN	0.00		0.00		0.00		0.48		3.04		5.18		5.27		5.22		5.54		1.83		0.12		0.00		28.62
S.D.	0.00		0.00		0.00		1.35		4.11		5.39		5.27		6.43		5.24		3.05		0.62		0.00		16.99
SKEW	0.00		0.00		0.00		4.41		1.77		1.53		1.26		2.22		1.05		2.62		6.64		0.00		0.35
MAX	0.00		0.00		0.00		10.00		20.00		29.00		23.70		39.30		25.50		17.60		5.50		0.00		79.50
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		0.00
YRS	123		123		124		124		118		116		112		113		117		120		122		123		86