Earliest and Latest Days of 80° F in Sioux City

This is a list of the earliest and latest days in the year with a high temperature of at least 80 °F in Sioux City, Iowa history. It is based on NOAA data from the years 1948–2024.

Also see:

Earliest 80 degree day in Sioux City?

The earliest in the year that Sioux City, Iowa had a high temperature of at least 80 °F is March 6 which happened in 2017.

Latest 80 degree day in Sioux City?

The latest in the year that Sioux City, Iowa had a high temperature of at least 80 °F is November 8 which has happened twice, most recently in 2006.

Earliest Days ≥ 80 °F

Date	Year	Temperature
March 6	2017	80 °F
March 7	2016	80 °F
March 11	2024	80 °F
March 13	2012	81 °F
March 15	2015	80 °F
March 16	2015	90 °F
March 16	2012	83 °F
March 16	1966	80 °F
March 17	2012	85 °F
March 18	2012	86 °F
March 24	2012	81 °F
March 24	2004	81 °F
March 24	1967	82 °F
March 24	1963	81 °F
March 26	2012	83 °F
March 26	2007	84 °F
March 26	1998	80 °F
March 26	1991	81 °F
March 26	1989	83 °F
March 26	1968	82 °F

Latest Days ≥ 80 °F

Date	Year	Temperature
November 8	2006	82 °F
November 8	1999	81 °F
November 6	2004	80 °F
November 3	2008	80 °F
November 3	1978	81 °F
November 2	2005	80 °F
October 31	1950	80 °F
October 30	1950	85 °F
October 29	1990	80 °F
October 27	1999	86 °F
October 27	1983	81 °F
October 27	1966	84 °F
October 27	1955	81 °F
October 26	1955	84 °F
October 25	1992	80 °F
October 25	1989	80 °F
October 25	1971	80 °F
October 25	1955	81 °F
October 24	1989	82 °F
October 24	1952	82 °F