National Weather Service United States Department of Commerce

Sioux City, IA Wettest and Driest Seasons
 

 

Wettest Seasons      Total (inches) and Year(s)

 

Rank

Amount

Winter

 

Rank

Amount

Spring

 

Rank

Amount

Summer

 

Rank

Amount

Autumn

1 5.62 1914-15   1 16.02 1903   1 30.38 2014   1 13.91 1970
2 5.33 2006-07 2 14.53 1892 2 20.13 2010 2 12.44 1906
3 4.84 1911-12 3 14.06 1984 3 17.73 1993 3 12.42 1905
4 4.70 2015-16 4 13.89 2016 4 16.89 1903 4 11.21 1941
5 4.68 2009-10 5 13.66 1927 5 16.60 1900 5 11.19 2018
6 4.51 1918-19 6 13.57 2007 6 16.54 1969 6 11.07 2009
7 4.50 1968-69 7 13.05 1896 7 16.41 1996 7 10.78 1901
8 4.21 1935-36 8 12.94 1998 8 16.39 1962 8 10.74 1946
9 4.20 1931-32 9 12.91 1959 9 16.21 1972 9 10.59 1938
10 4.18 1970-71 10 12.55 1920 10 15.84 2015 10 10.44 1957

 

 

Driest Seasons      Total (inches) and Year(s)

 

Rank

Amount

Winter

 

Rank

Amount

Spring

 

Rank

Amount

Summer

 

Rank

Amount

Autumn

1 0.58 1895-96   1 2.51 1934   1 2.55 1976   1 0.59 2011
2 0.63 1903-04 2 2.84 1910 2 3.88 1936 2 0.60 1939
3 0.66 1898-99 3 3.06 1902 3 4.55 1913 3 1.38 1958
4 0.74 1930-31 4 3.29 1994 4 4.65 2012 4 1.43 1999
5 0.85 1986-87 5 3.31 1989 5 5.25 1985 5 1.58 1950
6 0.91 1980-81 6 3.55 1907 6 5.34 1971 6 1.75 1955
  0.91 1976-77 7 3.60 1966 7 5.53 1970   1.75 1917
8 0.95 2013-14 8 3.80 1969 8 5.55 1995 8 1.99 1956
  0.95 1956-57 9 3.84 1955 9 5.66 1997 9 2.05 1892
10 0.96 1922-23 10 4.06 2009 10 5.80 1905 10 2.19 1952

 

Wettest   7-Day Period on record -  10.18 inches   6/14/2014 - 6/20/2014
Wettest 14-Day Period on record - 12.35 inches  6/14/2014 - 6/27/2014
Wettest 31-Day Period on record - 18.24 inches  6/12/2014 - 7/12/2014

      Wettest 3 Month Period on record -  30.38 inches Jun-Aug 2014
2nd Wettest 3 Month Period on record - 23.00 inches May-Jul 1903
3rd Wettest 3 Month Period on record -  22.29 inches May-Jul 2014

Wettest 6-Month Period on record - 37.27 inches   April 2014 - September 2014
Wettest 12-Month Period on record - 44.01 inches  June 2014 - May 2015

Wettest 365-Day Period on record - 44.63 inches 5/25/2014 - 5/24/2015

Updated Nov '20

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