Earliest and Latest Days of 80° F in Missoula

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

Also see:

Earliest 80 degree day in Missoula?

The earliest in the year that Missoula, Montana had a high temperature of at least 80 °F is April 8 which has happened twice, most recently in 1996.

Latest 80 degree day in Missoula?

The latest in the year that Missoula, Montana had a high temperature of at least 80 °F is October 21 which happened in 2003.

Earliest Days ≥ 80 °F

Date	Year	Temperature
April 8	1996	80 °F
April 8	1977	82 °F
April 10	2023	80 °F
April 12	1913	80 °F
April 14	1988	80 °F
April 15	1988	81 °F
April 15	1926	83 °F
April 16	1984	81 °F
April 16	1936	81 °F
April 17	1994	82 °F
April 17	1980	83 °F
April 17	1936	86 °F
April 17	1926	80 °F
April 18	1952	80 °F
April 18	1943	81 °F
April 18	1936	88 °F
April 18	1923	81 °F
April 18	1910	83 °F
April 19	1980	80 °F
April 19	1962	81 °F
April 19	1910	83 °F

Latest Days ≥ 80 °F

Date	Year	Temperature
October 21	2003	80 °F
October 15	1991	81 °F
October 14	1918	82 °F
October 13	1918	84 °F
October 11	1934	80 °F
October 10	2015	82 °F
October 9	1942	80 °F
October 9	1910	81 °F
October 9	1904	80 °F
October 8	1980	80 °F
October 8	1910	81 °F
October 7	2020	80 °F
October 7	2014	80 °F
October 6	2020	80 °F
October 6	1942	82 °F
October 5	2021	84 °F
October 5	1979	81 °F
October 5	1958	80 °F
October 4	2021	83 °F
October 4	1993	80 °F
October 4	1980	85 °F
October 4	1970	83 °F
October 4	1947	80 °F
October 4	1943	82 °F
October 4	1935	81 °F