ROCK RAPIDS, :

Monthly Total Snowfall (Inches)

(137147)

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 13.20 w 0.00 0.00 0.00
1893-94 0.00 0.00 0.00 0.00 3.00 4.00 6.50 0.00 3.00 0.00 0.00 0.00 16.50
1894-95 0.00 0.00 0.00 0.50 0.00 0.00 10.00 0.00 3.50 0.00 0.00 0.00 14.00
1895-96 0.00 0.00 0.00 0.00 6.00 1.00 0.00 0.50 8.50 a 0.00 j 0.00 0.00 16.00
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 11.50 j 17.00 4.50 0.00 z 4.00 b 0.00 0.00 0.00 z 25.50
1898-99 0.00 a 0.00 z 0.00 z 1.00 0.00 z 0.00 z 0.00 z 3.50 0.00 z 0.00 z 0.00 z 0.00 z 4.50
1899-00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1900-01 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1901-02 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1902-03 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1903-04 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3.00 4.00 3.00 0.00 0.00 0.00 10.00
1904-05 0.00 a 0.00 0.00 0.00 0.00 2.50 t 7.00 6.00 23.50 a 3.50 0.00 0.00 40.00
1905-06 0.00 0.00 0.00 10.00 3.50 0.00 7.50 3.50 5.20 0.00 0.00 z 0.00 29.70
1906-07 0.00 0.00 0.00 3.00 2.50 3.00 4.00 17.00 a 4.00 0.50 5.50 a 0.00 39.50
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 0.00 z 0.00 z 0.00 z 0.00 z 4.00 b 6.00 0.00 z 0.00 0.00 10.00
1909-10 0.00 0.00 0.00 0.00 20.00 8.00 15.00 b 1.00 0.00 6.00 0.00 z 0.00 50.00
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 0.00 z 4.00 2.10 1.90 0.00 0.00 z 10.00
1913-14 0.00 z 0.00 0.00 1.00 2.00 0.00 5.70 5.50 0.00 z 0.50 0.00 0.00 14.70
1914-15 0.00 0.00 0.00 0.00 0.00 13.00 1.00 0.00 z 11.20 0.00 0.00 0.00 25.20
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 20.70 4.20 18.00 0.60 0.00 0.00 52.90
1917-18 0.00 0.00 0.00 0.00 4.00 15.50 12.00 2.50 3.00 1.50 0.00 0.00 38.50
1918-19 0.00 0.00 0.00 2.80 0.20 2.10 2.80 32.00 10.00 7.40 0.00 0.00 57.30
1919-20 0.00 0.00 0.00 0.50 18.20 3.20 2.00 15.20 a 29.70 0.50 0.00 0.00 69.30
1920-21 0.00 0.00 0.00 0.00 5.00 15.30 a 3.50 2.30 2.80 0.00 0.00 0.00 28.90
1921-22 0.00 0.00 0.00 0.00 4.00 4.10 18.50 11.90 5.00 6.00 0.00 0.00 49.50
1922-23 0.00 0.00 0.00 0.00 1.00 6.10 8.20 0.80 23.70 0.50 0.00 0.00 40.30
1923-24 0.00 0.00 0.00 2.70 0.50 4.60 6.20 8.50 17.80 a 0.00 1.00 0.00 41.30
1924-25 0.00 0.00 0.00 0.00 2.50 24.30 19.20 4.10 1.90 0.00 0.00 0.00 52.00
1925-26 0.00 0.00 0.00 4.80 14.00 5.50 15.90 a 0.70 5.90 0.60 0.00 0.00 47.40
1926-27 0.00 0.00 0.00 0.00 6.40 12.90 0.80 19.00 8.00 4.50 0.00 0.00 51.60
1927-28 0.00 0.00 0.00 0.00 2.20 13.20 1.00 0.00 a 3.70 4.10 0.00 0.00 24.20
1928-29 0.00 0.00 0.00 0.00 4.00 2.00 21.50 15.00 6.20 10.00 0.00 0.00 58.70
1929-30 0.00 0.00 a 0.00 3.50 0.50 2.60 21.50 5.00 0.80 0.00 0.00 0.00 33.90
1930-31 0.00 0.00 0.00 1.00 0.00 1.00 0.20 0.00 3.00 0.00 0.00 0.00 5.20
1931-32 0.00 0.00 0.00 0.00 2.50 a 6.20 18.80 12.00 13.30 0.00 0.00 0.00 52.80
1932-33 0.00 0.00 0.00 0.00 14.20 5.50 1.00 11.50 16.50 0.00 0.00 0.00 48.70
1933-34 0.00 0.00 0.00 0.00 0.00 3.50 14.00 2.00 9.00 0.00 0.00 0.00 28.50
1934-35 0.00 0.00 0.00 0.00 0.00 9.80 4.30 6.50 2.00 0.00 0.00 0.00 22.60
1935-36 0.00 0.00 0.00 0.00 3.20 5.70 12.10 48.10 11.40 0.50 0.00 0.00 81.00
1936-37 0.00 0.00 0.00 0.00 2.40 11.30 8.80 2.60 6.20 13.50 0.00 0.00 44.80
1937-38 0.00 0.00 0.00 3.00 3.00 8.20 5.70 13.00 3.00 5.50 0.00 0.00 41.40
1938-39 0.00 0.00 0.00 0.00 0.00 8.00 1.80 19.30 3.70 0.00 0.00 0.00 32.80
1939-40 0.00 0.00 0.00 0.00 0.00 3.90 0.30 15.00 20.10 0.00 0.50 0.00 39.80
1940-41 0.00 0.00 0.00 0.00 20.70 11.80 2.50 10.20 6.50 0.00 0.00 0.00 51.70
1941-42 0.00 0.00 0.00 0.00 1.50 10.70 3.50 5.00 14.00 0.00 0.00 0.00 34.70
1942-43 0.00 0.00 0.00 0.00 3.50 9.40 13.30 1.80 10.00 0.00 0.50 0.00 38.50
1943-44 0.00 0.00 0.00 0.00 9.50 0.50 2.00 2.00 a 9.00 0.50 1.00 0.00 24.50
1944-45 0.00 0.00 0.00 0.00 4.50 0.00 8.70 11.80 6.50 10.00 0.00 0.00 41.50
1945-46 0.00 0.00 0.00 0.00 1.00 25.50 4.00 4.00 7.00 0.00 0.00 0.00 41.50
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 19.50 16.00 0.00 0.00 0.00 47.70
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 0.00 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
1970-71 0.00 0.00 0.00 4.00 0.00 10.00 0.50 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 0.00 z 9.00 1.00 1.40 2.00 1.00 0.00 0.00 14.40
1974-75 0.00 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
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 0.00 z 2.00 0.00 z 16.00 0.00 0.00 0.00 18.00
1977-78 0.00 0.00 0.00 0.00 8.20 3.50 a 0.00 z 0.00 z 0.00 z 0.00 0.00 0.00 11.70
1978-79 0.00 0.00 0.00 0.00 0.00 z 2.00 z 13.50 1.00 g 0.00 z 0.00 z 0.00 0.00 13.50
1979-80 0.00 0.00 0.00 0.00 0.00 z 0.50 0.00 z 0.00 z 1.00 a 0.00 b 0.00 0.00 1.50
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 0.00 z 1.00 5.00 0.00 0.00 27.50
1982-83 0.00 0.00 0.00 7.00 1.00 12.00 2.00 9.00 12.00 5.00 0.00 0.00 48.00
1983-84 0.00 0.00 0.00 0.00 9.50 5.00 4.00 6.00 a 9.60 4.00 0.00 0.00 38.10
1984-85 0.00 0.00 0.00 0.00 0.00 2.80 a 3.40 a 0.50 10.50 0.00 0.00 0.00 17.20
1985-86 0.00 0.00 0.00 0.00 8.30 c 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 1.00 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 a 0.00 a 5.00 0.00 0.00 25.00
1988-89 0.00 0.00 0.00 0.00 1.50 b 2.50 1.00 3.00 e 11.00 0.00 0.00 0.00 19.00
1989-90 0.00 0.00 0.00 0.00 0.00 2.00 0.00 4.00 6.00 0.00 0.00 0.00 12.00
1990-91 0.00 0.00 0.00 1.50 8.50 7.50 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 b 15.00 a 0.00 a 0.00 e 8.50 a 8.50 0.50 0.00 0.00 32.50
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 c 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 b 7.00 g 2.50 a 4.00 c 1.00 0.00 0.00 a 15.00
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
2001-02 0.00 0.00 0.00 0.00 6.10 a 1.00 a 0.00 f 4.50 2.50 c 3.00 a 0.00 0.00 17.10
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
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
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
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
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 0.60 z 0.50 z 0.00 z 0.00 z 19.30
2011-12 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2.00 z 6.10 x 8.00 y 0.30 z 0.00 z 0.00 z 0.00 0.00
2012-13 0.00 0.00 0.00 0.00 0.00 6.00 1.50 8.20 0.00 z 0.00 z 0.00 z 0.00 z 15.70
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.60 3.94 6.45 6.69 7.23 7.65 1.83 0.11 0.00 36.01
S.D. 0.00 0.00 0.00 1.48 4.66 5.71 5.64 7.97 6.11 2.75 0.59 0.00 15.43
SKEW 0.00 0.00 0.00 3.65 1.66 1.41 0.96 2.38 1.10 1.80 7.55 0.00 0.47
MAX 0.00 0.00 0.00 10.00 20.70 29.00 21.50 48.10 29.70 13.50 5.50 0.00 81.00
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 5.20
NO YRS 112 112 113 113 108 107 105 106 109 109 111 112 87