Earliest and Latest Days of 100° F in Moscow

This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in Moscow, Idaho history. It is based on NOAA data from the years 1893–2024.

Also see:

Earliest 100 degree day in Moscow?

The earliest in the year that Moscow, Idaho had a high temperature of at least 100 °F is June 28 which has happened twice, most recently in 2021.

Latest 100 degree day in Moscow?

The latest in the year that Moscow, Idaho had a high temperature of at least 100 °F is September 5 which happened in 1973.

Earliest Days ≥ 100 °F

Date	Year	Temperature
June 28	2021	101 °F
June 28	2015	102 °F
June 29	2021	105 °F
June 30	2021	104 °F
June 30	1924	100 °F
July 1	1924	100 °F
July 11	1926	100 °F
July 12	1967	103 °F
July 14	1935	100 °F
July 16	1925	100 °F
July 17	1960	100 °F
July 18	1992	100 °F
July 18	1960	103 °F
July 18	1918	100 °F
July 19	1979	100 °F
July 19	1960	102 °F
July 20	1931	104 °F
July 20	1905	100 °F
July 21	2006	100 °F
July 21	1936	100 °F
July 21	1908	100 °F
July 21	1905	102 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
September 5	1973	100 °F
August 31	2022	103 °F
August 31	1967	100 °F
August 29	2017	102 °F
August 28	2009	100 °F
August 24	1966	100 °F
August 22	1961	101 °F
August 20	1961	100 °F
August 19	1961	102 °F
August 18	2022	100 °F
August 18	2020	100 °F
August 17	2020	100 °F
August 17	2008	103 °F
August 15	2023	103 °F
August 14	2004	100 °F
August 14	1992	100 °F
August 13	2015	102 °F
August 13	1994	100 °F
August 12	2001	101 °F
August 11	2015	100 °F