Earliest and Latest Days of 90° F in Wilmington

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Wilmington, Delaware history. It is based on NOAA data from the years 1894–2024.

Also see:

Earliest 90 degree day in Wilmington?

The earliest in the year that Wilmington, Delaware had a high temperature of at least 90 °F is April 10 which happened in 2013.

Latest 90 degree day in Wilmington?

The latest in the year that Wilmington, Delaware had a high temperature of at least 90 °F is October 7 which has happened twice, most recently in 2007.

Earliest Days ≥ 90 °F

Date	Year	Temperature
April 10	2013	90 °F
April 16	1896	92 °F
April 17	2002	92 °F
April 17	1896	97 °F
April 18	1896	97 °F
April 19	1985	92 °F
April 19	1896	94 °F
April 20	1985	90 °F
April 21	1985	92 °F
April 22	1985	94 °F
April 26	2009	91 °F
April 26	1990	92 °F
April 27	1990	91 °F
April 29	1974	91 °F
May 2	1894	90 °F
May 3	2018	90 °F
May 7	2000	91 °F
May 8	2000	90 °F
May 8	1936	90 °F
May 9	1963	92 °F
May 9	1896	94 °F
May 9	1895	92 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
October 7	2007	90 °F
October 7	1941	93 °F
October 6	1941	93 °F
October 5	1951	91 °F
October 5	1941	94 °F
October 2	2019	98 °F
October 1	1927	90 °F
September 27	2017	90 °F
September 27	1998	91 °F
September 26	2007	92 °F
September 26	1895	92 °F
September 25	2017	91 °F
September 25	1970	93 °F
September 24	2017	92 °F
September 24	2010	92 °F
September 24	1970	91 °F
September 24	1941	90 °F
September 23	2019	93 °F
September 23	2005	91 °F
September 23	1970	94 °F
September 23	1941	91 °F
September 23	1931	91 °F
September 23	1895	97 °F