Earliest and Latest Days of 90° F in Zion National Park

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Zion National Park, Utah history. It is based on NOAA data from the years 1904–2024.

Also see:

Earliest 90 degree day in Zion National Park?

The earliest in the year that Zion National Park, Utah had a high temperature of at least 90 °F is February 10 which happened in 1907.

Latest 90 degree day in Zion National Park?

The latest in the year that Zion National Park, Utah had a high temperature of at least 90 °F is November 14 which happened in 1999.

Earliest Days ≥ 90 °F

Date	Year	Temperature
February 10	1907	97 °F
March 17	2007	91 °F
March 20	2004	90 °F
March 21	2004	90 °F
April 7	1989	90 °F
April 8	2000	93 °F
April 8	1989	90 °F
April 9	2022	90 °F
April 9	1904	92 °F
April 10	1904	91 °F
April 11	1934	92 °F
April 11	1904	90 °F
April 13	1904	90 °F
April 14	2002	90 °F
April 15	1936	90 °F
April 15	1904	90 °F
April 16	1904	91 °F
April 17	1946	91 °F
April 17	1936	90 °F
April 18	1989	93 °F
April 18	1962	90 °F
April 18	1954	90 °F
April 18	1946	91 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
November 14	1999	90 °F
October 30	1906	99 °F
October 29	1906	99 °F
October 26	2008	90 °F
October 24	1959	91 °F
October 23	2003	94 °F
October 22	2003	96 °F
October 21	2023	91 °F
October 21	2003	95 °F
October 20	2003	92 °F
October 20	1921	96 °F
October 19	2003	95 °F
October 19	1950	92 °F
October 19	1921	93 °F
October 18	2008	90 °F
October 18	2003	94 °F
October 18	1991	90 °F
October 18	1958	90 °F
October 17	2003	92 °F
October 17	1991	91 °F
October 17	1988	91 °F
October 17	1973	90 °F
October 17	1958	90 °F
October 17	1955	92 °F