National Weather Service United States Department of Commerce

***Latest Information on Ongoing River Flooding***

Widespread heavy rainfall has produced considerable flooding across the region. Several rivers will rise into Moderate or even Major flood stage over the upcoming days. Here is the latest information on the ongoing flooding. Read More >

        Wettest and Driest Seasons for Sioux City, IA

Sioux City                Winter...Dec+Jan+Feb  Spring...Mar+Apr+May 
Precipitation by Seasons  Summer...Jun+Jul+Aug  Autumn...Sep+Oct+Nov


Wettest Seasons...Total Inches and Year

Rank     Winter          Spring          Summer          Autumn

 1.   5.62 1914-15    16.02  1903     30.38  2014     13.91  1970
 2.   5.33 2006-07    14.53  1892     20.13  2010     12.44  1906
 3.   4.84 1911-12    14.06  1984     17.37  1993     12.42  1905
 4.   4.70 2015-16    13.66  1927     16.89  1903     12.21  1941
 5.   4.68 2009-10    13.57  2007     16.60  1900     11.07  2009
 6.   4.51 1918-19    13.05  1896     16.54  1969     10.78  1901
 7.   4.50 1968-69    12.94  1998     16.41  1996     10.74  1946
 8.   4.21 1935-36    12.91  1959     16.39  1962     10.59  1938
 9.   4.20 1931-32    12.55  1920     16.21  1972     10.44  1957
10.   4.18 1970-71    12.13  2013     15.84  2015     10.43  1965


Driest Seasons...Total Inches and Year

Rank     Winter          Spring          Summer          Autumn

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


updated 3/26/2016