Highest Daily Low Temperatures in Wilmington History

This is a list of the hottest daily low temperatures ever recorded in Wilmington, Delaware history from 1894–2024 based on data from the NOAA.

Highest temperatures all-time

Record for the highest daily low temperature in Wilmington

The highest low temperature for a calendar day in Wilmington, Delaware history was 84 °F which happened on Wednesday, August 7, 1918.

Rank	Temperature	Date
1	84 °F	August 7, 1918
2	83 °F	July 14, 1894
3	82 °F	July 22, 2011
3	82 °F	July 29, 1894
5	81 °F	August 13, 2016
5	81 °F	July 19, 2013
5	81 °F	July 24, 2010
8	80 °F	July 14, 2023
8	80 °F	July 23, 2011
8	80 °F	August 8, 2007
8	80 °F	July 5, 1999
8	80 °F	July 10, 1993
13	79 °F	July 20, 2020
13	79 °F	July 20, 2019
13	79 °F	September 9, 2016
13	79 °F	August 14, 2016
13	79 °F	August 12, 2016
13	79 °F	July 20, 2015
13	79 °F	August 3, 2006
13	79 °F	August 2, 2006
13	79 °F	July 8, 1994
13	79 °F	September 3, 1993
13	79 °F	July 10, 1936
13	79 °F	August 5, 1930
13	79 °F	September 3, 1921
13	79 °F	July 5, 1896