Earliest and Latest Days of 90° F in Thermopolis

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Thermopolis, Wyoming history. It is based on NOAA data from the years 1899–2024.

Also see:

Earliest 90 degree day in Thermopolis?

The earliest in the year that Thermopolis, Wyoming had a high temperature of at least 90 °F is May 7 which happened in 1934.

Latest 90 degree day in Thermopolis?

The latest in the year that Thermopolis, Wyoming had a high temperature of at least 90 °F is October 19 which happened in 2003.

Earliest Days ≥ 90 °F

Date	Year	Temperature
May 7	1934	90 °F
May 8	1934	91 °F
May 12	1960	90 °F
May 13	2013	92 °F
May 13	2001	91 °F
May 13	1960	91 °F
May 14	2013	91 °F
May 14	2001	91 °F
May 15	2013	90 °F
May 15	1936	93 °F
May 16	1936	96 °F
May 17	1901	91 °F
May 18	2009	90 °F
May 18	1934	90 °F
May 18	1901	95 °F
May 19	2020	92 °F
May 19	2009	92 °F
May 19	1992	90 °F
May 19	1954	93 °F
May 19	1937	92 °F
May 19	1901	92 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
October 19	2003	90 °F
October 3	1917	92 °F
October 1	2011	91 °F
September 30	1963	90 °F
September 30	1957	90 °F
September 30	1917	91 °F
September 29	2010	93 °F
September 29	1938	93 °F
September 28	2023	90 °F
September 28	2021	92 °F
September 28	2010	92 °F
September 28	2001	90 °F
September 28	1957	91 °F
September 28	1938	90 °F
September 28	1909	90 °F
September 27	2021	93 °F
September 27	2015	92 °F
September 27	2014	91 °F
September 27	1938	90 °F
September 26	2021	90 °F
September 26	2015	94 °F
September 26	2014	90 °F
September 26	2010	93 °F
September 26	2009	91 °F
September 26	2001	91 °F
September 26	1952	90 °F