Earliest and Latest Days of 80° F in Casper

This is a list of the earliest and latest days in the year with a high temperature of at least 80 °F in Casper, Wyoming history. It is based on NOAA data from the years 1900–2024.

Also see:

Earliest 80 degree day in Casper?

The earliest in the year that Casper, Wyoming had a high temperature of at least 80 °F is April 2 which happened in 1911.

Latest 80 degree day in Casper?

The latest in the year that Casper, Wyoming had a high temperature of at least 80 °F is November 1 which happened in 1912.

Earliest Days ≥ 80 °F

Date	Year	Temperature
April 2	1911	80 °F
April 8	1930	80 °F
April 16	1994	80 °F
April 17	1994	81 °F
April 18	2001	80 °F
April 19	1994	80 °F
April 19	1962	81 °F
April 20	1989	81 °F
April 20	1980	81 °F
April 20	1962	81 °F
April 21	1994	81 °F
April 21	1989	83 °F
April 21	1980	80 °F
April 22	1994	81 °F
April 22	1989	80 °F
April 22	1939	80 °F
April 23	2012	82 °F
April 23	1994	81 °F
April 23	1989	82 °F
April 23	1969	80 °F

Latest Days ≥ 80 °F

Date	Year	Temperature
November 1	1912	80 °F
October 23	2003	81 °F
October 22	2003	80 °F
October 21	1934	83 °F
October 18	1934	80 °F
October 16	1991	83 °F
October 15	1991	80 °F
October 15	1958	80 °F
October 14	1958	80 °F
October 13	1958	80 °F
October 12	1996	80 °F
October 12	1991	81 °F
October 12	1950	80 °F
October 11	1999	81 °F
October 11	1996	84 °F
October 11	1991	81 °F
October 11	1936	80 °F
October 11	1934	80 °F
October 10	2020	80 °F
October 10	2015	85 °F
October 10	1996	82 °F
October 10	1991	82 °F
October 10	1971	81 °F
October 10	1953	80 °F
October 10	1934	85 °F
October 10	1911	82 °F