Lowest Daily High Temperatures in Sioux City History

This is a list of the coldest daily high temperatures ever recorded in Sioux City, Iowa history from 1948–2024 based on data from the NOAA.
Record for the lowest daily high temperature in Sioux City
The lowest high temperature for a calendar day in Sioux City, Iowa history was -13 °F which happened on Thursday, December 21, 1989.
Rank Temperature Date
1 -13 °F December 21, 1989
2 -12 °F December 22, 1989
3 -11 °F December 24, 1983
4 -10 °F December 23, 1983
5 -9 °F January 14, 2024
5 -9 °F January 10, 1982
7 -8 °F February 16, 1979
7 -8 °F January 29, 1966
9 -7 °F January 10, 1997
9 -7 °F February 3, 1989
9 -7 °F December 22, 1983
12 -6 °F December 21, 1990
12 -6 °F December 19, 1983
14 -5 °F December 22, 2022
14 -5 °F December 31, 2017
14 -5 °F February 2, 1996
14 -5 °F February 7, 1994
14 -5 °F January 16, 1982
14 -5 °F January 14, 1979
14 -5 °F January 18, 1970
14 -5 °F January 28, 1966