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 >


        Warmest and Coldest Seasons for Sioux City, IA

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

Warmest Seasons...Temperatures Average and Year

Rank    Winter     Rank    Spring   Rank   Summer   Rank   Autumn

 1. 32.1  1930-31   1. 57.8  2012    1. 80.1  1936   1. 56.6  1963
 2. 31.4  1991-92   2. 54.5  1977    2. 76.9  1934   2. 56.2  1931
 3. 29.5  1986-87   3. 53.9  1987    3. 76.8  1931   3. 55.1  1922
 4. 28.8  1997-98   4. 53.6  1985    4. 76.6  1955   4. 55.0  1938
 5. 28.4  2001-02   5. 52.8  1934    5. 76.3  1988   5. 54.9  1998
 6. 28.3  1918-19      52.8  1910       76.3  1937   6. 54.7  2015
 7. 28.1  1999-00   7. 52.7  1991       76.3  1933   7. 54.3  1939
    28.1  1920-21   8. 52.5  2000    8. 76.2  1901   8. 54.0  2005
 9. 27.9  2015-16      52.5  1946    9. 76.1  1938      54.0  1953
10. 27.3  2011-12  10. 52.4  1925   10. 75.5  1921  10. 53.6  1956
                                                        53.6  1914

Coldest Seasons...Temperature Average and Year

Rank    Winter     Rank  Spring    Rank   Summer   Rank   Autumn

 1.  9.5  1978-79   1. 42.9  1960   1. 67.0  1915   1. 42.7  1896
 2. 11.1  1935-36   2. 43.4  1950   2. 67.8  1992   2. 46.2  1985
 3. 13.4  1977-78   3. 43.6  1899   3. 69.0  2004      46.2  1976 
 4. 14.9  1917-18      43.6  1893   4. 69.1  1950   4. 46.6  1996
 5. 15.7  1904-05      43.6  1892   5. 69.2  1903      46.6  1993
 6. 15.8  1981-82   6. 43.8  1909   6. 69.4  1904      46.6  1951   
 7. 16.1  1909-10      43.8  1907   7. 69.6  1902   7. 46.7  1959
 8. 16.2  1892-93   8. 43.9  1951   8. 69.7  1945   8. 47.2  1991
 9. 16.3  2000-01   9. 44.1  1996      69.7  1908   9. 47.4  1995
    16.3  1916-17  10. 44.3  1947  10. 70.0  1951      47.4  1911
                                       70.0  1927

updated 3/26/2016