Earliest and Latest Days of 80° F in Idaho Falls

This is a list of the earliest and latest days in the year with a high temperature of at least 80 °F in Idaho Falls, Idaho history. It is based on NOAA data from the years 1948–2024.

Also see:

Earliest 80 degree day in Idaho Falls?

The earliest in the year that Idaho Falls, Idaho had a high temperature of at least 80 °F is April 15 which happened in 1985.

Latest 80 degree day in Idaho Falls?

The latest in the year that Idaho Falls, Idaho had a high temperature of at least 80 °F is October 14 which happened in 1958.

Earliest Days ≥ 80 °F

Date	Year	Temperature
April 15	1985	81 °F
April 16	1985	80 °F
April 19	1962	84 °F
April 20	1989	80 °F
April 22	2012	83 °F
April 22	1969	80 °F
April 23	2012	86 °F
April 23	1977	80 °F
April 24	2012	80 °F
April 24	1977	81 °F
April 25	1977	82 °F
April 25	1952	80 °F
April 26	2001	81 °F
April 26	1992	82 °F
April 26	1987	81 °F
April 27	2001	80 °F
April 27	1992	80 °F
April 27	1987	82 °F
April 27	1952	80 °F
April 28	1987	81 °F

Latest Days ≥ 80 °F

Date	Year	Temperature
October 14	1958	81 °F
October 11	1991	80 °F
October 10	2015	81 °F
October 10	1953	80 °F
October 10	1951	82 °F
October 9	1965	80 °F
October 9	1953	81 °F
October 8	1953	80 °F
October 6	1975	80 °F
October 6	1954	80 °F
October 5	2021	82 °F
October 5	1993	81 °F
October 5	1988	80 °F
October 4	2021	80 °F
October 4	1970	80 °F
October 3	2011	83 °F
October 3	2010	86 °F
October 3	1987	82 °F
October 3	1970	80 °F
October 3	1963	80 °F
October 3	1955	80 °F