Earliest and Latest Days of 100° F in Thermopolis

This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in Thermopolis, Wyoming history. It is based on NOAA data from the years 1899–2024.

Also see:

Earliest 100 degree day in Thermopolis?

The earliest in the year that Thermopolis, Wyoming had a high temperature of at least 100 °F is June 9 which happened in 1902.

Latest 100 degree day in Thermopolis?

The latest in the year that Thermopolis, Wyoming had a high temperature of at least 100 °F is September 8 which happened in 2022.

Earliest Days ≥ 100 °F

Date	Year	Temperature
June 9	1902	100 °F
June 10	1918	101 °F
June 10	1902	100 °F
June 11	1918	101 °F
June 14	2021	101 °F
June 14	1918	102 °F
June 15	2021	104 °F
June 16	2021	104 °F
June 19	1940	102 °F
June 20	1940	101 °F
June 21	1900	102 °F
June 22	1900	103 °F
June 23	2012	100 °F
June 23	2007	100 °F
June 23	1990	100 °F
June 23	1954	105 °F
June 24	2012	103 °F
June 24	1954	100 °F
June 24	1936	102 °F
June 24	1902	100 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
September 8	2022	102 °F
September 7	2022	104 °F
September 6	2020	102 °F
September 5	2022	103 °F
September 5	2020	101 °F
September 4	2022	102 °F
August 31	1954	102 °F
August 30	1954	102 °F
August 28	1937	100 °F
August 28	1924	100 °F
August 26	1913	100 °F
August 25	2020	101 °F
August 24	2020	100 °F
August 24	1917	101 °F
August 23	1903	106 °F
August 22	1938	100 °F
August 18	2023	100 °F
August 18	2020	100 °F
August 17	2023	100 °F
August 17	2020	100 °F