Earliest and Latest Days of 100° F in Greeley

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

Also see:

Earliest 100 degree day in Greeley?

The earliest in the year that Greeley, Colorado had a high temperature of at least 100 °F is May 29 which happened in 2003.

Latest 100 degree day in Greeley?

The latest in the year that Greeley, Colorado had a high temperature of at least 100 °F is September 9 which happened in 2021.

Earliest Days ≥ 100 °F

Date	Year	Temperature
May 29	2003	101 °F
June 2	2006	102 °F
June 3	2006	102 °F
June 5	2006	103 °F
June 6	2006	100 °F
June 6	2004	100 °F
June 7	2006	105 °F
June 7	2004	106 °F
June 8	1985	100 °F
June 10	2013	101 °F
June 10	1918	101 °F
June 11	2022	102 °F
June 11	1952	100 °F
June 13	2022	102 °F
June 13	2006	102 °F
June 13	1952	100 °F
June 13	1918	103 °F
June 14	2006	110 °F
June 14	1956	100 °F
June 14	1918	101 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
September 9	2021	100 °F
September 8	2022	100 °F
September 7	2022	100 °F
September 6	2022	101 °F
September 6	2020	100 °F
September 5	2022	100 °F
September 5	2020	105 °F
September 5	2019	101 °F
September 2	2019	103 °F
September 1	2019	101 °F
August 31	1919	102 °F
August 27	2010	101 °F
August 27	1937	100 °F
August 25	2020	102 °F
August 24	1936	102 °F
August 23	2006	101 °F
August 23	2003	100 °F
August 23	1938	101 °F
August 23	1919	102 °F
August 22	2003	102 °F
August 22	1948	100 °F
August 22	1919	100 °F