Earliest and Latest Days of 90° F in Jackson Hole

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Jackson Hole, Wyoming history. It is based on NOAA data from the years 1905–2024.

Also see:

Earliest 90 degree day in Jackson Hole?

The earliest in the year that Jackson Hole, Wyoming had a high temperature of at least 90 °F is May 29 which happened in 2003.

Latest 90 degree day in Jackson Hole?

The latest in the year that Jackson Hole, Wyoming had a high temperature of at least 90 °F is September 18 which happened in 1956.

Earliest Days ≥ 90 °F

Date	Year	Temperature
May 29	2003	90 °F
June 15	1974	92 °F
June 17	1974	90 °F
June 18	1974	90 °F
June 18	1940	91 °F
June 19	1940	91 °F
June 21	1994	90 °F
June 23	1988	91 °F
June 24	1988	91 °F
June 24	1941	94 °F
June 25	1988	94 °F
June 26	2002	90 °F
June 26	1994	91 °F
June 26	1988	95 °F
June 26	1970	90 °F
June 27	1990	92 °F
June 27	1927	93 °F
June 27	1926	93 °F
June 28	2002	90 °F
June 28	1990	91 °F
June 28	1986	91 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
September 18	1956	93 °F
September 9	1934	93 °F
September 6	1950	90 °F
September 5	1967	90 °F
September 5	1955	92 °F
September 5	1950	90 °F
September 4	1955	91 °F
September 4	1950	90 °F
September 4	1924	92 °F
September 3	1950	90 °F
September 2	1978	90 °F
September 2	1950	90 °F
August 31	1955	90 °F
August 30	1954	92 °F
August 29	1934	94 °F
August 28	1934	93 °F
August 28	1924	93 °F
August 27	1934	91 °F
August 27	1924	94 °F
August 26	1988	91 °F
August 26	1985	91 °F