Earliest and Latest Days of 80° F in West Yellowstone

This is a list of the earliest and latest days in the year with a high temperature of at least 80 °F in West Yellowstone, Montana history. It is based on NOAA data from the years 1924–2024.

Also see:

Earliest 80 degree day in West Yellowstone?

The earliest in the year that West Yellowstone, Montana had a high temperature of at least 80 °F is May 6 which happened in 1992.

Latest 80 degree day in West Yellowstone?

The latest in the year that West Yellowstone, Montana had a high temperature of at least 80 °F is October 11 which happened in 1934.

Earliest Days ≥ 80 °F

Date	Year	Temperature
May 6	1992	80 °F
May 11	1960	80 °F
May 13	1936	81 °F
May 13	1932	81 °F
May 16	1988	80 °F
May 19	1958	82 °F
May 19	1954	83 °F
May 20	1958	83 °F
May 22	1942	80 °F
May 24	1934	83 °F
May 25	1969	80 °F
May 26	1994	81 °F
May 26	1966	81 °F
May 26	1936	84 °F
May 26	1934	80 °F
May 27	1983	80 °F
May 27	1966	81 °F
May 27	1958	81 °F
May 27	1934	82 °F
May 28	2003	83 °F
May 28	1986	80 °F
May 28	1961	80 °F
May 28	1958	80 °F
May 28	1934	84 °F

Latest Days ≥ 80 °F

Date	Year	Temperature
October 11	1934	83 °F
October 6	2003	89 °F
October 5	2003	85 °F
October 3	2010	80 °F
October 3	2003	85 °F
October 2	2010	80 °F
September 29	1957	80 °F
September 28	2010	80 °F
September 28	1938	81 °F
September 27	2010	80 °F
September 27	1963	80 °F
September 27	1960	80 °F
September 27	1938	80 °F
September 26	1963	80 °F
September 26	1954	80 °F
September 26	1952	81 °F
September 25	2015	81 °F
September 25	2001	80 °F
September 25	1952	80 °F
September 24	2011	81 °F
September 24	2009	82 °F
September 24	2001	81 °F
September 24	1987	83 °F
September 24	1952	80 °F
September 24	1943	81 °F