Earliest and Latest Days of 90° F in Port Huron

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Port Huron, Michigan history. It is based on NOAA data from the years 1933–2024.

Also see:

Earliest 90 degree day in Port Huron?

The earliest in the year that Port Huron, Michigan had a high temperature of at least 90 °F is May 5 which happened in 1949.

Latest 90 degree day in Port Huron?

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

Earliest Days ≥ 90 °F

Date	Year	Temperature
May 5	1949	91 °F
May 6	1949	91 °F
May 14	1962	90 °F
May 15	1998	90 °F
May 15	1962	93 °F
May 16	1991	91 °F
May 16	1962	93 °F
May 17	1962	93 °F
May 18	1998	91 °F
May 18	1996	90 °F
May 18	1962	92 °F
May 19	1998	95 °F
May 19	1962	90 °F
May 20	1977	91 °F
May 20	1962	90 °F
May 20	1934	90 °F
May 21	1977	90 °F
May 21	1941	90 °F
May 21	1934	92 °F
May 22	1994	90 °F
May 22	1977	90 °F
May 22	1964	90 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
October 8	2007	90 °F
October 6	1963	90 °F
October 5	1951	90 °F
September 27	1998	90 °F
September 26	2017	90 °F
September 26	1998	91 °F
September 25	2017	91 °F
September 25	1933	90 °F
September 23	2017	93 °F
September 22	2017	91 °F
September 22	1941	92 °F
September 20	1955	91 °F
September 19	1955	95 °F
September 18	1965	90 °F
September 18	1955	94 °F
September 17	1955	92 °F
September 16	1941	91 °F
September 15	1991	93 °F
September 15	1941	91 °F
September 13	1952	95 °F