Highest Daily Low Temperatures in Iowa City History

This is a list of the hottest daily low temperatures ever recorded in Iowa City, Iowa history from 1893–2024 based on data from the NOAA.

Highest temperatures all-time

Record for the highest daily low temperature in Iowa City

The highest low temperature for a calendar day in Iowa City, Iowa history was 84 °F which happened on Saturday, July 26, 1997.

Rank	Temperature	Date
1	84 °F	July 26, 1997
2	81 °F	July 21, 1991
3	80 °F	July 19, 2019
3	80 °F	July 21, 1998
3	80 °F	August 6, 1996
3	80 °F	July 14, 1995
3	80 °F	August 17, 1983
8	79 °F	August 24, 2023
8	79 °F	July 22, 1991
8	79 °F	July 8, 1990
8	79 °F	June 22, 1988
8	79 °F	July 13, 1981
8	79 °F	July 26, 1930
8	79 °F	August 6, 1918
8	79 °F	August 6, 1896
16	78 °F	July 24, 2012
16	78 °F	July 20, 2011
16	78 °F	July 19, 2011
16	78 °F	July 18, 2011
16	78 °F	July 1, 2011
16	78 °F	July 18, 1996
16	78 °F	July 15, 1995
16	78 °F	July 23, 1993
16	78 °F	June 17, 1992
16	78 °F	July 11, 1989
16	78 °F	July 14, 1988
16	78 °F	August 2, 1987
16	78 °F	July 28, 1983
16	78 °F	June 25, 1937