Highest Temperatures in Sioux City History

This is a list of the 20 highest temperatures ever recorded in Sioux City, Iowa history from 1948–2024 based on data from the NOAA.
What's the hottest it has ever gotten in Sioux City?
The hottest temperature in Sioux City, Iowa history is 108 °F which has happened twice, most recently on Wednesday July 12, 1995.
Rank Temperature Date
1 108 °F July 12, 1995
1 108 °F June 21, 1988
3 107 °F July 31, 1955
4 106 °F May 14, 2013
4 106 °F July 7, 1980
6 105 °F July 13, 1995
6 105 °F July 11, 1954
6 105 °F June 18, 1953
9 104 °F July 22, 2012
9 104 °F July 3, 1990
9 104 °F June 24, 1988
9 104 °F July 14, 1980
9 104 °F July 11, 1980
9 104 °F June 30, 1961
9 104 °F July 12, 1957
9 104 °F August 27, 1955
9 104 °F August 26, 1955
9 104 °F July 30, 1955
19 103 °F July 23, 2012
19 103 °F September 2, 2000
19 103 °F June 28, 1988
19 103 °F June 19, 1988
19 103 °F June 8, 1985
19 103 °F July 19, 1974
19 103 °F July 18, 1974
19 103 °F July 13, 1954
Weather Station Details
Years Station Coordinates
1948–2024 Sioux City Gateway Airport location