Earliest and Latest Days of 90° F in Plymouth

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Plymouth, Wisconsin history. It is based on NOAA data from the years 1910–2024.

Also see:

Earliest 90 degree day in Plymouth?

The earliest in the year that Plymouth, Wisconsin had a high temperature of at least 90 °F is May 2 which happened in 1959.

Latest 90 degree day in Plymouth?

The latest in the year that Plymouth, Wisconsin had a high temperature of at least 90 °F is September 24 which happened in 2017.

Earliest Days ≥ 90 °F

Date	Year	Temperature
May 2	1959	90 °F
May 6	1934	91 °F
May 9	1934	92 °F
May 22	1925	90 °F
May 27	2018	90 °F
May 27	1978	92 °F
May 28	2018	94 °F
May 29	2018	90 °F
May 30	2006	90 °F
May 30	1939	91 °F
May 31	1988	91 °F
May 31	1934	90 °F
May 31	1925	90 °F
June 1	1988	92 °F
June 1	1934	100 °F
June 2	1988	90 °F
June 2	1944	90 °F
June 3	2020	92 °F
June 3	1934	92 °F
June 4	1977	90 °F
June 4	1934	90 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
September 24	2017	91 °F
September 23	2017	91 °F
September 23	1937	90 °F
September 21	1920	90 °F
September 19	1947	90 °F
September 19	1932	90 °F
September 18	1955	91 °F
September 16	1955	90 °F
September 16	1948	91 °F
September 15	1939	95 °F
September 15	1927	91 °F
September 14	1998	92 °F
September 14	1939	96 °F
September 14	1927	92 °F
September 13	2005	90 °F
September 13	1939	94 °F
September 12	2005	92 °F
September 12	1952	91 °F
September 12	1948	90 °F
September 12	1931	91 °F