FLANDREAU, SOUTH DAKOTA

Monthly Total Snowfall (Inches)

(392984)

File last updated on Apr 4, 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 2.50 0.00 z 5.60 10.50 p 0.00 z 0.00 w 8.10
1893-94 0.00 y 0.00 x 0.00 z 0.00 z 2.00 10.10 o 5.30 0.00 3.00 1.80 x 0.00 z 0.00 z 10.30
1894-95 0.00 z 0.00 z 0.00 z 2.00 0.00 1.00 4.80 1.00 1.00 0.00 z 0.00 z 0.00 z 9.80
1895-96 0.00 z 0.00 z 0.00 z 0.00 z 8.00 0.80 2.80 3.50 22.80 1.00 z 0.00 z 0.00 z 37.90
1896-97 0.00 z 0.00 z 0.00 z 2.80 8.80 0.00 z 15.00 5.50 7.00 3.50 0.00 z 0.00 z 42.60
1897-98 0.00 z 0.00 z 0.00 z 0.00 z 3.00 4.80 v 0.00 5.30 5.30 0.00 z 0.00 z 0.00 z 13.60
1898-99 0.00 z 0.00 z 0.00 z 6.10 z 3.50 0.00 0.90 9.40 u 6.80 t 4.10 y 0.00 0.00 z 4.40
1899-00 0.00 z 9.90 z 0.00 z 0.00 0.00 4.10 x 1.50 0.00 z 20.80 q 0.00 0.00 z 0.00 z 1.50
1900-01 0.00 z 0.00 z 0.00 z 0.00 z 7.20 u 5.00 0.60 5.60 t 3.10 q 6.00 0.00 z 0.00 z 11.60
1901-02 0.00 z 0.00 z 0.00 z 0.00 2.50 3.50 a 4.50 2.50 1.90 0.00 0.00 z 0.00 z 14.90
1902-03 0.00 z 0.00 z 0.00 z 0.00 0.30 12.10 1.50 2.80 0.70 2.00 0.00 z 0.00 z 19.40
1903-04 0.00 z 0.00 z 0.00 z 0.00 3.80 5.30 2.30 4.30 0.00 0.00 0.00 z 0.00 z 15.70
1904-05 0.00 z 0.00 z 0.00 z 0.00 z 0.00 3.00 a 2.50 9.30 4.50 2.30 y 0.00 0.00 z 19.30
1905-06 0.00 0.00 0.00 z 8.00 3.00 2.00 2.50 1.00 13.40 0.00 0.00 0.00 29.90
1906-07 0.00 0.00 0.00 z 2.50 14.50 y 2.20 8.00 3.30 2.00 12.00 8.00 0.00 z 38.00
1907-08 0.00 z 0.00 z 0.00 z 0.00 0.80 z 4.50 1.00 13.80 13.30 4.00 0.00 0.00 z 36.60
1908-09 0.00 z 0.00 z 0.00 0.00 1.50 7.30 8.00 10.00 3.70 8.00 0.00 0.00 z 38.50
1909-10 0.00 z 0.00 z 0.00 z 0.00 8.50 14.50 7.00 5.00 0.00 4.00 0.00 z 0.00 z 39.00
1910-11 0.00 z 0.00 0.00 z 0.50 0.00 z 1.00 8.00 6.00 0.00 z 5.50 z 0.00 0.00 15.50
1911-12 0.00 0.00 0.00 0.00 2.10 z 8.30 y 0.00 2.40 10.00 0.00 0.00 0.00 12.40
1912-13 0.00 0.00 0.30 0.00 0.00 5.00 0.50 2.50 4.00 8.00 0.00 0.00 20.30
1913-14 0.00 0.00 0.00 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
1914-15 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
1915-16 0.00 z 0.00 z 0.00 z 0.00 0.80 4.60 w 17.70 2.20 5.00 0.70 0.00 0.00 26.40
1916-17 0.00 z 0.00 z 0.00 z 2.20 0.50 4.90 15.40 1.50 14.20 0.00 0.00 z 0.00 z 38.70
1917-18 0.00 z 0.00 z 0.00 z 0.00 0.80 2.00 1.60 0.00 3.20 0.00 z 0.00 z 0.00 z 7.60
1918-19 0.00 z 0.00 z 0.00 z 1.50 z 0.00 3.10 2.70 6.80 u 1.30 z 3.00 0.00 z 0.00 z 8.80
1919-20 0.00 z 0.00 z 0.00 z 3.50 3.00 0.80 0.80 4.30 a 11.50 1.50 0.00 0.00 z 25.40
1920-21 0.00 z 0.00 z 0.00 z 0.50 0.20 2.00 1.00 0.00 0.20 0.00 0.00 z 0.00 z 3.90
1921-22 0.00 z 0.00 z 0.00 z 0.00 z 4.70 0.00 z 11.80 9.10 v 1.00 z 0.00 0.00 z 0.00 z 16.50
1922-23 0.00 z 0.00 z 0.00 z 0.00 14.50 4.00 4.50 0.00 7.50 4.00 a 0.00 0.00 z 34.50
1923-24 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 z 3.00 y 0.00 z 6.40 0.00 z 0.00 0.00 z 6.40
1924-25 0.00 z 0.00 z 0.00 z 0.00 z 6.50 10.50 7.00 v 1.70 0.00 0.00 0.00 0.00 z 18.70
1925-26 0.00 z 0.00 z 0.00 z 2.00 1.00 3.70 3.40 0.20 2.20 0.20 0.00 z 0.00 z 12.70
1926-27 0.00 z 0.00 z 0.00 z 0.00 2.00 5.50 2.00 4.50 1.50 2.00 0.00 0.00 z 17.50
1927-28 0.00 z 0.00 z 0.00 0.00 4.00 10.50 0.00 1.00 0.00 4.00 0.00 z 0.00 z 19.50
1928-29 0.00 z 0.00 z 0.00 z 0.00 3.00 4.00 7.30 11.00 r 2.00 7.00 0.00 0.00 z 23.30
1929-30 0.00 z 0.00 z 0.00 z 1.00 1.40 1.00 6.50 1.50 1.20 0.00 0.00 z 0.00 z 12.60
1930-31 0.00 z 0.00 z 0.00 z 0.00 1.50 0.00 z 2.50 0.00 z 0.00 z 0.00 0.00 z 0.00 z 4.00
1931-32 0.00 0.00 z 0.00 z 0.00 2.00 7.50 14.50 7.10 4.20 0.00 0.00 z 0.00 z 35.30
1932-33 0.00 z 0.00 z 0.00 z 1.70 z 11.70 3.40 5.20 5.50 10.00 0.00 0.00 0.00 z 35.80
1933-34 0.00 z 0.00 z 0.00 z 0.00 1.50 7.30 3.20 0.50 7.70 0.00 0.00 z 0.00 z 20.20
1934-35 0.00 z 0.00 z 0.00 0.00 1.00 5.60 5.70 1.50 1.50 10.00 0.00 0.00 25.30
1935-36 0.00 0.00 0.00 0.20 5.20 7.70 12.00 23.50 9.70 2.00 0.00 0.00 60.30
1936-37 0.00 z 0.00 z 0.00 2.50 6.00 8.60 16.90 6.50 9.50 10.50 0.00 z 0.00 60.50
1937-38 0.00 0.00 0.00 2.70 3.40 15.70 6.50 9.00 8.00 6.00 0.00 0.00 z 51.30
1938-39 0.00 0.00 0.00 0.00 0.50 6.50 5.50 15.50 3.40 0.00 z 0.00 0.00 31.40
1939-40 0.00 0.00 0.00 0.00 0.00 1.70 0.80 9.20 18.10 0.00 0.50 0.00 30.30
1940-41 0.00 0.00 0.00 0.00 20.00 10.10 4.80 9.50 7.30 0.00 0.00 0.00 51.70
1941-42 0.00 0.00 0.00 0.00 2.30 9.30 4.00 2.80 10.00 0.00 3.00 0.00 31.40
1942-43 0.00 0.00 0.00 0.00 2.90 3.50 14.00 5.60 8.10 0.00 0.00 0.00 34.10
1943-44 0.00 0.00 0.00 0.00 11.00 0.60 0.60 5.30 9.40 1.50 2.60 0.00 31.00
1944-45 0.00 z 0.00 0.00 0.00 4.60 0.50 5.60 5.50 5.50 8.50 0.50 0.00 30.70
1945-46 0.00 0.00 0.00 0.00 0.50 8.50 2.10 10.10 1.20 0.00 0.00 0.00 22.40
1946-47 0.00 0.00 0.00 0.50 6.70 1.30 4.90 4.10 1.40 7.00 0.00 0.00 25.90
1947-48 0.00 0.00 0.00 0.00 12.00 2.50 3.10 9.40 3.80 0.00 0.00 0.00 30.80
1948-49 0.00 0.00 0.00 0.00 8.40 0.20 4.20 0.50 8.40 3.50 0.00 0.00 25.20
1949-50 0.00 0.00 0.00 0.00 0.60 1.70 8.80 7.50 14.70 16.00 0.00 0.00 49.30
1950-51 0.00 0.00 0.00 0.00 4.20 5.00 6.00 9.80 36.20 1.50 0.00 0.00 62.70
1951-52 0.00 0.00 0.00 4.10 1.80 19.00 6.20 13.20 10.00 0.50 0.00 0.00 54.80
1952-53 0.00 0.00 a 0.00 0.00 3.60 4.90 5.10 8.00 13.00 3.50 0.00 0.00 38.10
1953-54 0.00 0.00 0.00 0.00 7.10 9.20 1.00 10.00 6.90 0.00 2.40 0.00 36.60
1954-55 0.00 0.00 0.00 0.00 4.10 1.00 2.50 11.50 0.40 0.00 0.00 0.00 19.50
1955-56 0.00 0.00 0.00 0.00 0.80 13.20 6.90 3.20 13.90 4.00 0.00 0.00 42.00
1956-57 0.00 0.00 0.00 0.00 2.50 2.00 0.00 4.50 13.00 6.20 0.00 0.00 28.20
1957-58 0.00 0.00 0.00 0.00 0.50 0.70 0.00 1.10 4.90 1.00 0.00 0.00 8.20
1958-59 0.00 0.00 0.00 0.00 3.00 5.00 3.00 8.30 1.00 0.00 a 0.00 0.00 20.30
1959-60 0.00 0.00 0.00 0.00 9.90 3.60 5.10 2.00 5.50 8.00 0.00 0.00 34.10
1960-61 0.00 0.00 0.00 0.00 0.00 7.50 2.10 8.00 7.50 0.00 0.00 0.00 25.10
1961-62 0.00 0.00 0.00 0.00 1.20 4.70 2.10 17.30 16.20 4.00 0.00 0.00 45.50
1962-63 0.00 0.00 0.00 0.00 0.00 1.90 5.80 6.00 6.30 1.00 0.00 0.00 21.00
1963-64 0.00 0.00 0.00 0.00 0.00 5.60 0.80 1.60 10.80 0.00 0.00 0.00 18.80
1964-65 0.00 0.00 0.00 0.00 2.50 6.00 2.50 13.50 13.70 0.00 0.00 0.00 38.20
1965-66 0.00 0.00 0.00 0.00 5.00 0.00 3.80 3.10 4.80 4.00 0.50 0.00 21.20
1966-67 0.00 0.00 0.00 0.00 1.00 2.00 3.00 15.00 1.00 0.00 0.00 0.00 22.00
1967-68 0.00 0.00 0.00 0.00 1.00 0.00 2.50 0.90 0.00 1.00 0.00 0.00 5.40
1968-69 0.00 0.00 0.00 0.00 1.10 26.00 12.00 23.50 6.00 0.00 0.00 0.00 68.60
1969-70 0.00 0.00 0.00 0.00 a 3.00 0.00 z 3.80 0.50 13.00 0.00 b 0.00 0.00 20.30
1970-71 0.00 0.00 0.00 8.50 3.50 8.00 1.00 6.10 2.00 0.00 0.00 0.00 29.10
1971-72 0.00 0.00 0.00 0.00 b 5.20 10.00 2.50 5.00 4.00 2.00 0.00 0.00 28.70
1972-73 0.00 0.00 0.00 2.50 1.50 4.00 4.50 7.00 0.00 0.00 0.00 0.00 19.50
1973-74 0.00 0.00 0.00 0.00 0.00 14.00 0.00 4.50 6.00 0.00 0.00 0.00 24.50
1974-75 0.00 0.00 0.00 0.00 1.00 1.00 0.00 z 2.60 21.00 a 0.00 a 0.00 0.00 25.60
1975-76 0.00 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 3.00 7.00 0.00 0.00 0.00 10.00
1976-77 0.00 0.00 0.00 2.50 0.50 8.00 4.00 2.00 a 16.00 0.00 z 0.00 0.00 33.00
1977-78 0.00 0.00 0.00 0.00 13.00 7.80 2.00 7.00 5.00 0.00 0.00 0.00 34.80
1978-79 0.00 0.00 0.00 0.00 1.50 0.00 z 23.50 3.00 8.00 0.00 0.00 0.00 36.00
1979-80 0.00 0.00 0.00 0.00 5.00 0.00 2.50 4.00 5.80 0.00 0.00 0.00 17.30
1980-81 0.00 0.00 0.00 2.00 0.00 4.00 0.50 3.00 0.00 0.00 0.00 0.00 9.50
1981-82 0.00 0.00 0.00 0.00 6.00 10.00 18.00 b 0.00 6.50 7.00 0.00 0.00 47.50
1982-83 0.00 0.00 0.00 0.30 5.00 a 14.00 6.00 6.00 16.00 6.00 0.00 0.00 53.30
1983-84 0.00 0.00 0.00 0.00 11.90 7.00 7.00 4.00 12.00 a 0.00 0.00 0.00 41.90
1984-85 0.00 0.00 0.00 0.00 0.00 4.00 5.00 1.00 19.00 0.00 0.00 0.00 29.00
1985-86 0.00 0.00 0.00 0.00 8.50 b 9.00 6.00 6.00 a 2.00 0.00 0.00 0.00 31.50
1986-87 0.00 0.00 0.00 0.00 5.00 a 0.00 0.00 z 1.50 0.00 0.00 0.00 0.00 6.50
1987-88 0.00 0.00 0.00 0.00 2.00 12.00 a 16.00 0.00 z 4.00 3.00 0.00 0.00 37.00
1988-89 0.00 0.00 0.00 0.00 7.00 2.50 2.00 0.00 z 21.00 0.00 0.00 0.00 32.50
1989-90 0.00 0.00 0.00 0.00 2.00 2.00 0.00 6.20 0.00 0.00 0.00 0.00 10.20
1990-91 0.00 0.00 0.00 3.00 8.00 7.80 1.00 5.80 0.80 0.00 0.00 0.00 26.40
1991-92 0.00 0.00 0.00 8.00 b 9.50 b 0.00 4.00 3.00 b 2.50 0.60 0.00 0.00 27.60
1992-93 0.00 0.00 0.00 0.00 3.80 a 5.90 b 6.30 9.50 a 8.00 0.00 c 0.00 0.00 33.50
1993-94 0.00 0.00 0.00 0.00 13.80 5.90 14.40 a 7.00 0.90 8.30 0.00 0.00 50.30
1994-95 0.00 0.00 0.00 0.00 7.00 3.50 0.00 2.50 a 12.90 b 14.50 0.00 0.00 40.40
1995-96 0.00 0.00 0.00 2.50 8.30 2.00 a 15.80 a 4.30 0.00 c 1.00 0.00 0.00 33.90
1996-97 0.00 z 0.00 0.00 0.00 14.50 a 19.50 e 1.40 d 10.10 a 2.50 a 6.80 a 0.00 0.00 54.80
1997-98 0.00 0.00 0.00 0.50 5.90 1.20 8.30 b 4.10 6.10 b 8.00 0.00 0.00 34.10
1998-99 0.00 0.00 0.00 0.00 14.00 4.50 11.60 a 0.60 7.80 a 2.00 0.00 0.00 40.50
1999-00 0.00 0.00 0.00 4.50 0.00 3.60 5.90 b 2.40 a 2.90 10.60 0.00 0.00 29.90
2000-01 0.00 0.00 0.00 0.00 14.10 10.50 d 12.60 d 13.20 7.10 a 0.00 0.00 0.00 57.50
2001-02 0.00 0.00 0.00 0.00 z 14.00 1.60 2.50 a 2.40 17.10 a 5.00 0.00 0.00 42.60
2002-03 0.00 0.00 0.00 6.40 0.00 0.40 4.90 c 3.80 a 6.10 a 4.20 a 0.00 0.00 25.80
2003-04 0.00 0.00 0.00 0.30 7.10 11.30 9.50 12.40 4.20 0.00 0.00 0.00 44.80
2004-05 0.00 0.00 0.00 0.00 0.00 0.40 1.40 c 4.90 12.20 0.00 0.00 0.00 18.90
2005-06 0.00 0.00 0.00 0.00 6.00 14.80 1.40 4.20 7.00 0.00 0.00 0.00 33.40
2006-07 0.00 0.00 0.00 2.00 0.00 1.70 a 5.00 15.80 13.70 7.50 0.00 0.00 45.70
2007-08 0.00 0.00 0.00 0.00 0.50 11.50 1.60 2.30 9.80 15.90 0.00 0.00 41.60
2008-09 0.00 0.00 0.00 0.00 4.00 a 14.20 7.10 3.60 b 1.20 7.20 0.00 z 0.00 37.30
2009-10 0.00 0.00 0.00 3.50 0.00 24.40 6.60 a 17.20 a 0.00 0.00 0.00 0.00 51.70
2010-11 0.00 0.00 0.00 0.00 1.50 a 19.60 a 20.80 a 19.80 t 4.70 x 0.00 z 0.00 z 0.00 z 41.90
2011-12 0.00 z 0.00 z 0.00 z 0.00 z 1.00 z 0.00 z 7.60 u 8.90 x 0.30 z 0.00 z 0.00 z 0.00 z 0.00
2012-13 0.00 z 0.00 z 0.00 z 2.20 z 0.00 z 14.70 z 0.30 z 12.00 0.00 z 0.00 z 0.00 z 0.00 z 12.00
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.78 4.11 5.96 5.32 5.73 6.95 2.68 0.19 0.00 33.37
S.D. 0.00 0.00 0.03 1.76 4.33 5.43 5.01 4.88 6.19 3.84 0.96 0.00 13.84
SKEW 0.00 0.00 8.89 2.78 1.29 1.38 1.44 1.39 1.44 1.56 6.60 0.00 0.37
MAX 0.00 0.00 0.30 8.50 20.00 26.00 23.50 23.50 36.20 16.00 8.00 0.00 68.60
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 5.40
NO YRS 79 81 82 104 110 104 112 106 109 104 91 80 61