Earliest and Latest Days of 90° F in Rochester

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Rochester, Massachusetts history. It is based on NOAA data from the years 1900–2024.

Also see:

Earliest 90 degree day in Rochester?

The earliest in the year that Rochester, Massachusetts had a high temperature of at least 90 °F is April 8 which happened in 2010.

Latest 90 degree day in Rochester?

The latest in the year that Rochester, Massachusetts had a high temperature of at least 90 °F is September 24 which happened in 1970.

Earliest Days ≥ 90 °F

Date	Year	Temperature
April 8	2010	90 °F
April 18	2002	94 °F
April 19	1976	92 °F
April 20	1976	92 °F
April 28	1990	90 °F
April 29	1990	90 °F
May 3	2001	93 °F
May 4	2001	94 °F
May 5	2001	92 °F
May 9	2000	92 °F
May 10	2000	90 °F
May 11	1979	94 °F
May 11	1965	90 °F
May 12	1993	93 °F
May 13	2001	90 °F
May 19	2017	93 °F
May 20	2017	90 °F
May 21	1996	91 °F
May 22	1996	97 °F
May 22	1975	90 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
September 24	1970	91 °F
September 23	1980	90 °F
September 23	1970	90 °F
September 21	1983	92 °F
September 17	1991	90 °F
September 13	1961	91 °F
September 12	2013	92 °F
September 12	1983	97 °F
September 11	1989	92 °F
September 10	2016	92 °F
September 9	2015	94 °F
September 9	1985	90 °F
September 8	2023	93 °F
September 8	1983	95 °F
September 7	2018	91 °F
September 7	1983	92 °F
September 6	1983	90 °F
September 6	1971	90 °F
September 6	1961	90 °F
September 5	1973	93 °F