National Weather Service United States Department of Commerce

Sioux Falls, SD Wettest and Driest Seasons

 

Wettest Seasons      Total (inches) and Year(s)

 

Rank

Amount

Winter

 

Rank

Amount

Spring

 

Rank

Amount

Summer

 

Rank

Amount

Autumn

1 6.88 1968-69   1 15.25 2019   1 22.64 2010   1 12.45 2016
2 5.99 1961-62 2 14.65 1995 2 19.45 2014 2 12.35 1973
3 5.14 1918-19 3 14.24 1920 3 17.56 2018 3 12.26 1929
4 4.71 1951-52 4 13.51 1927 4 17.39 1993 4 11.61 1982
5 4.62 2009-10 5 13.20 1936 5 17.18 1909 5 11.37 1986
6 4.57 1908-09 6 13.15 1935 6 16.76 1944 6 10.96 2018
7 4.53 1908-09 7 12.91 1993 7 16.14 1992 7 10.78 1946
8 3.80 2011-12 8 12.27 1898 8 15.82 1900 8 10.65 1911
9 3.75 1945-46 9 12.06 1893 9 15.66 1934 9 10.19 1906
10 3.74 1953-54 10 11.73 1965 10 15.05 2015 10 10.03 2015

 

 

Driest Seasons      Total (inches) and Year(s)

 

Rank

Amount

Winter

 

Rank

Amount

Spring

 

Rank

Amount

Summer

 

Rank

Amount

Autumn

1 0.23 1930-31   1 1.62 1934   1 2.73 2012   1 0.87 2011
2 0.45 1986-87 2 1.97 1931 2 3.55 1894 2 1.02 1952
3 0.55 2001-02 3 3.05 1981 3 3.86 1976 3 1.19 1974
4 0.61 1941-42 4 3.32 2023 4 3.91 1996 4 1.26 1999
5 0.62 1956-57 5 3.36 1926 5 4.82 1927 5 1.29 1967
6 0.64 1994-95 6 3.49 1907 6 4.90 1893 6 1.52 1894
  0.64 1989-90 7 3.50 1971 7 5.42 1988 7 1.54 1976
8 0.65 1900-01 8 3.55 1922 8 5.61 1958 8 1.78 1956
9 0.69 1979-80 9 3.69 1969 9 5.68 1917 9 1.84 1955
10 0.74 1980-81 10 3.72 1928 10 5.83 1936 10 1.92 1936

 

 

Wettest   7-Day Period on record -  7.87 inches   6/14/2014 - 6/20/2014
Wettest 14-Day Period on record - 10.50 inches  6/3/2014 - 6/16/2014
Wettest 31-Day Period on record - 14.59 inches  5/31/2014 - 6/30/2014

      Wettest 3 Month Period on record -  22.64 inches Jun-Aug 2010
2nd Wettest 3 Month Period on record - 22.55 inches May-Jul 1993
3rd Wettest 3 Month Period on record -  20.73 inches May-Jul 1908

Wettest 6-Month Period on record - 31.78 inches   April 2010 - September 2010
Wettest 12-Month Period on record - 47.12 inches  June 2018 - May 2019

Wettest 365-Day Period on record - 47.33 inches 6/12/2018 - 6/11/2019

Updated Jun '23

Winter = Dec + Jan + Feb   Spring = Mar + Apr + May   Summer = Jun + Jul + Aug   Autumn = Sep + Oct + Nov