Earliest and Latest Days of 100° F in Eugene

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

Also see:

Earliest 100 degree day in Eugene?

The earliest in the year that Eugene, Oregon had a high temperature of at least 100 °F is June 17 which happened in 1961.

Latest 100 degree day in Eugene?

The latest in the year that Eugene, Oregon had a high temperature of at least 100 °F is September 5 which happened in 1944.

Earliest Days ≥ 100 °F

Date	Year	Temperature
June 17	1961	100 °F
June 22	1992	102 °F
June 25	1925	100 °F
June 26	2021	103 °F
June 27	2021	111 °F
June 29	1951	100 °F
July 2	2015	101 °F
July 3	2015	100 °F
July 6	1960	100 °F
July 10	2007	101 °F
July 10	1926	104 °F
July 11	1961	103 °F
July 11	1951	102 °F
July 12	1961	105 °F
July 14	1941	102 °F
July 14	1938	100 °F
July 15	2023	100 °F
July 15	1941	102 °F
July 16	1979	102 °F
July 17	1979	101 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
September 5	1944	101 °F
September 2	1988	103 °F
August 31	1987	102 °F
August 29	1944	100 °F
August 27	2019	101 °F
August 20	2016	100 °F
August 19	2016	104 °F
August 19	2009	101 °F
August 19	1939	100 °F
August 16	2023	105 °F
August 16	1977	101 °F
August 15	2023	105 °F
August 15	2020	101 °F
August 14	2023	103 °F
August 14	2010	101 °F
August 14	2008	100 °F
August 14	2002	100 °F
August 14	1942	100 °F
August 13	2023	102 °F
August 13	2002	104 °F