Highest Daily Low Temperatures in Dayton History

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

Highest temperatures all-time

Record for the highest daily low temperature in Dayton

The highest low temperature for a calendar day in Dayton, Ohio history was 82 °F which happened on Saturday, July 21, 1934.

Rank	Temperature	Date
1	82 °F	July 21, 1934
2	81 °F	July 22, 1934
3	80 °F	July 16, 1988
3	80 °F	July 28, 1941
3	80 °F	July 26, 1940
3	80 °F	July 26, 1934
3	80 °F	July 25, 1934
3	80 °F	June 29, 1934
9	79 °F	July 18, 1942
9	79 °F	July 30, 1941
9	79 °F	July 29, 1941
9	79 °F	July 27, 1940
13	78 °F	June 16, 2022
13	78 °F	July 7, 2012
13	78 °F	July 23, 2011
13	78 °F	July 22, 2011
13	78 °F	July 19, 2011
13	78 °F	July 30, 1999
13	78 °F	June 28, 1998
13	78 °F	June 18, 1944
13	78 °F	July 30, 1940
13	78 °F	July 25, 1940
13	78 °F	July 23, 1940
13	78 °F	July 8, 1939
13	78 °F	August 22, 1936
13	78 °F	July 15, 1936
13	78 °F	July 11, 1936
13	78 °F	August 10, 1896
13	78 °F	July 27, 1896