Earliest and Latest Days of 90° F in Detroit

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Detroit, Michigan history. It is based on NOAA data from the years 1896–2024.

Also see:

Earliest 90 degree day in Detroit?

The earliest in the year that Detroit, Michigan had a high temperature of at least 90 °F is April 23 which happened in 1925.

Latest 90 degree day in Detroit?

The latest in the year that Detroit, Michigan had a high temperature of at least 90 °F is October 8 which happened in 2007.

Earliest Days ≥ 90 °F

Date	Year	Temperature
April 23	1925	94 °F
April 24	1925	93 °F
April 24	1915	90 °F
April 25	1925	92 °F
May 6	1949	90 °F
May 15	1962	92 °F
May 16	1991	90 °F
May 16	1962	92 °F
May 17	1999	90 °F
May 17	1977	91 °F
May 17	1962	92 °F
May 18	1962	92 °F
May 19	1998	90 °F
May 19	1996	90 °F
May 19	1934	90 °F
May 19	1911	91 °F
May 19	1910	90 °F
May 20	1977	91 °F
May 20	1911	90 °F
May 21	1977	92 °F
May 21	1941	92 °F
May 21	1921	90 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
October 8	2007	90 °F
October 7	1963	90 °F
October 6	1963	91 °F
September 27	1916	91 °F
September 26	2017	93 °F
September 26	1998	91 °F
September 26	1900	90 °F
September 25	2017	90 °F
September 25	1900	92 °F
September 23	2017	91 °F
September 22	1914	90 °F
September 22	1908	91 °F
September 21	2010	90 °F
September 21	1970	91 °F
September 21	1931	92 °F
September 21	1914	91 °F
September 20	1978	91 °F
September 20	1940	90 °F
September 20	1931	92 °F
September 19	1955	93 °F