Earliest and Latest Days of 80° F in Great Sand Dunes National Park

This is a list of the earliest and latest days in the year with a high temperature of at least 80 °F in Great Sand Dunes National Park, Colorado history. It is based on NOAA data from the years 1950–2024.

Also see:

Earliest 80 degree day in Great Sand Dunes National Park?

The earliest in the year that Great Sand Dunes National Park, Colorado had a high temperature of at least 80 °F is May 8 which happened in 1962.

Latest 80 degree day in Great Sand Dunes National Park?

The latest in the year that Great Sand Dunes National Park, Colorado had a high temperature of at least 80 °F is October 5 which happened in 1963.

Earliest Days ≥ 80 °F

Date	Year	Temperature
May 8	1962	80 °F
May 9	1989	80 °F
May 13	1984	80 °F
May 14	1996	82 °F
May 16	1996	81 °F
May 16	1964	80 °F
May 17	1996	82 °F
May 18	2020	80 °F
May 19	1996	82 °F
May 20	1996	81 °F
May 21	2008	80 °F
May 21	2005	83 °F
May 21	1964	80 °F
May 22	2005	83 °F
May 22	1984	81 °F
May 23	2005	84 °F
May 23	1989	82 °F
May 23	1967	80 °F
May 24	2005	83 °F
May 24	2000	89 °F
May 24	1989	85 °F
May 24	1984	82 °F
May 24	1967	80 °F
May 24	1964	80 °F

Latest Days ≥ 80 °F

Date	Year	Temperature
October 5	1963	80 °F
September 23	1966	80 °F
September 22	2014	80 °F
September 22	1966	87 °F
September 21	2014	80 °F
September 21	1983	84 °F
September 20	2018	81 °F
September 20	2014	82 °F
September 20	2010	80 °F
September 20	1980	80 °F
September 19	2021	80 °F
September 19	2018	83 °F
September 19	2010	80 °F
September 19	1954	80 °F
September 18	2018	81 °F
September 18	2000	80 °F
September 18	1954	81 °F
September 17	2018	80 °F
September 17	2000	82 °F
September 16	2018	80 °F
September 16	2000	81 °F
September 16	1990	83 °F
September 16	1956	80 °F