Earliest and Latest Days of 90° F in Boonton

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Boonton, New Jersey history. It is based on NOAA data from the years 1893–2024.

Also see:

Earliest 90 degree day in Boonton?

The earliest in the year that Boonton, New Jersey had a high temperature of at least 90 °F is April 17 which happened in 1896.

Latest 90 degree day in Boonton?

The latest in the year that Boonton, New Jersey had a high temperature of at least 90 °F is October 3 which happened in 2019.

Earliest Days ≥ 90 °F

Date	Year	Temperature
April 17	1896	91 °F
April 18	2002	93 °F
April 18	1976	90 °F
April 18	1896	92 °F
April 19	1976	91 °F
April 20	1976	92 °F
April 25	1915	93 °F
April 27	2009	91 °F
April 27	1915	91 °F
April 28	2009	90 °F
April 28	1990	90 °F
April 29	1990	90 °F
May 2	2010	90 °F
May 5	2001	92 °F
May 7	1949	91 °F
May 8	1934	90 °F
May 9	1936	92 °F
May 9	1896	94 °F
May 9	1895	90 °F
May 10	1936	91 °F
May 10	1896	94 °F
May 10	1895	95 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
October 3	2019	90 °F
September 26	2017	90 °F
September 26	1984	92 °F
September 26	1895	90 °F
September 25	2017	91 °F
September 25	1970	90 °F
September 24	1970	92 °F
September 24	1941	90 °F
September 23	1980	91 °F
September 23	1970	90 °F
September 23	1931	91 °F
September 23	1895	95 °F
September 22	1895	96 °F
September 21	1895	96 °F
September 20	1946	90 °F
September 20	1895	94 °F
September 18	1991	91 °F
September 17	1991	91 °F
September 17	1915	91 °F
September 16	1927	91 °F
September 16	1915	90 °F