Earliest and Latest Days of 80° F in Flagstaff

This is a list of the earliest and latest days in the year with a high temperature of at least 80 °F in Flagstaff, Arizona history. It is based on NOAA data from the years 1893–2024.

Also see:

Earliest 80 degree day in Flagstaff?

The earliest in the year that Flagstaff, Arizona had a high temperature of at least 80 °F is April 7 which happened in 1989.

Latest 80 degree day in Flagstaff?

The latest in the year that Flagstaff, Arizona had a high temperature of at least 80 °F is October 15 which happened in 2020.

Earliest Days ≥ 80 °F

Date	Year	Temperature
April 7	1989	80 °F
April 23	1898	80 °F
April 26	1898	81 °F
April 27	1898	83 °F
April 28	1992	80 °F
April 28	1898	82 °F
May 2	1943	80 °F
May 6	1989	81 °F
May 7	2020	80 °F
May 7	2009	80 °F
May 7	1989	81 °F
May 8	2018	82 °F
May 8	2009	80 °F
May 8	1989	85 °F
May 9	2018	80 °F
May 9	1974	80 °F
May 9	1934	81 °F
May 10	1934	82 °F
May 11	1996	86 °F
May 11	1993	80 °F
May 11	1974	81 °F
May 11	1960	81 °F
May 11	1934	81 °F
May 11	1898	82 °F

Latest Days ≥ 80 °F

Date	Year	Temperature
October 15	2020	81 °F
October 14	2020	81 °F
October 12	1950	83 °F
October 11	1965	80 °F
October 11	1950	80 °F
October 10	1996	81 °F
October 10	1980	80 °F
October 9	1996	81 °F
October 9	1980	81 °F
October 8	1980	80 °F
October 8	1965	80 °F
October 8	1934	80 °F
October 7	1965	80 °F
October 6	1991	80 °F
October 6	1987	81 °F
October 6	1934	80 °F
October 5	2020	80 °F
October 5	1991	80 °F
October 5	1975	80 °F
October 4	2020	80 °F
October 4	1980	82 °F