Earliest and Latest Days of 80° F in Dillon

This is a list of the earliest and latest days in the year with a high temperature of at least 80 °F in Dillon, Montana history. It is based on NOAA data from the years 1895–2024.

Also see:

Earliest 80 degree day in Dillon?

The earliest in the year that Dillon, Montana had a high temperature of at least 80 °F is April 19 which happened in 1962.

Latest 80 degree day in Dillon?

The latest in the year that Dillon, Montana had a high temperature of at least 80 °F is October 22 which happened in 2003.

Earliest Days ≥ 80 °F

Date	Year	Temperature
April 19	1962	80 °F
April 25	1946	82 °F
April 25	1903	80 °F
April 26	1992	80 °F
April 27	1987	85 °F
April 28	2007	80 °F
April 28	1987	84 °F
April 28	1939	82 °F
April 29	1992	80 °F
April 29	1939	81 °F
April 30	2021	81 °F
May 1	1981	81 °F
May 2	1966	80 °F
May 2	1947	85 °F
May 3	1966	84 °F
May 3	1947	82 °F
May 4	2004	81 °F
May 4	1966	85 °F
May 4	1947	81 °F
May 5	2017	82 °F
May 5	1992	81 °F
May 5	1966	86 °F

Latest Days ≥ 80 °F

Date	Year	Temperature
October 22	2003	80 °F
October 20	1921	81 °F
October 19	1921	80 °F
October 18	1927	80 °F
October 17	1927	80 °F
October 15	1991	80 °F
October 15	1909	80 °F
October 14	1958	81 °F
October 14	1909	80 °F
October 13	1918	82 °F
October 12	1950	80 °F
October 12	1934	80 °F
October 12	1918	80 °F
October 11	1991	83 °F
October 11	1936	81 °F
October 10	2015	82 °F
October 10	1910	82 °F
October 9	2015	80 °F
October 9	1965	80 °F
October 9	1953	82 °F
October 9	1942	82 °F
October 9	1911	82 °F
October 9	1910	81 °F
October 9	1906	80 °F