National Weather Service United States Department of Commerce

Active Weather Pattern Continues for the Northwestern U.S.

A series of Pacific storm systems will bring periods of locally heavy rain, gusty winds, and mountain snow to portions of Washington and Oregon for the next couple days. In addition, much of the northwestern U.S. and Intermountain West will experience strong winds from these storm systems, particularly in Sierra Nevada, Great Basin, and the northern Rockies/High Plains. Read More >



Top Ten Snowfall for each month at Sioux Falls, SD

Rank... 1     2     3     4     5     6     7     8     9    10

Sep     .9    .2    .1    T     T     T     T     T     T     T
      1985  1939  1945  1985  1984  1961  1947  1929  1912  1908

Oct   10.0   7.4   6.5   6.3   6.1   6.0   5.1   4.0   4.0   3.5
      1991  1995  1905  2002  1898  1925  1970  1918  1916  2009

Nov   21.9  19.6  19.0  17.3  17.0  15.2  14.8  14.3  13.8  13.2
      1985  2000  1983  2015  1959  1979  1998  2005  2001  1975

Dec   41.1  27.8  23.8  20.6  19.8  17.9  17.6  17.3  17.2  16.0
      1968  2009  1924  1945  1996  2010  1982  1951  1955  1920

Jan   22.2  21.0  20.5  20.5  19.6  19.0  18.6  18.3  18.3  17.9
      1929  1897  1937  1910  1969  1979  1917  1975  1916  1988

Feb   48.4  28.5  25.5  21.1  20.3  19.4  18.6  18.1  17.8  16.9
      1962  1969  1909  1965  1936  1929  1952  1945  1940  2010

Mar   31.5  27.5  21.6  21.4  20.4  20.3  19.4  19.3  19.0  18.8
      1951  1917  1956  1998  1960  1940  1984  1970  1957  1983

Apr   18.4  14.9  14.8  12.5  11.3  11.0  10.7  10.5   9.0   8.9
      1983  1994  2013  1995  1988  1893  1957  1929  2003  1935

May    3.0   2.0   1.5    .2    .1    .1    .1  
      1944  1943  2013  1954  1976  1968  1967

Jun     T
      1998  


TOP 20 SNOWIEST MONTHS ON RECORD IN SIOUX FALLS...

 1   48.4  FEB 1962
 2   41.1  DEC 1968
 3   31.5  MAR 1951
 4   28.5  FEB 1969
 5   27.8  DEC 2009
 6   27.5  MAR 1917
 7   25.5  FEB 1909
 8   23.8  DEC 1924
 9   22.2  JAN 1929
10   21.9  NOV 1985
11   21.6  MAR 1956
12   21.4  MAR 1998
13   21.1  FEB 1965
14   21.0  JAN 1897
15   20.6  DEC 1945
16   20.5  JAN 1937
     20.5  JAN 1910
18   20.4  MAR 1960
19   20.3  MAR 1940
     20.3  FEB 1936
 
updated Jan '17