Earliest and Latest Days of 90° F in Seneca

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Seneca, Oregon history. It is based on NOAA data from the years 1908–2021.

Also see:

Earliest 90 degree day in Seneca?

The earliest in the year that Seneca, Oregon had a high temperature of at least 90 °F is June 2 which happened in 2021.

Latest 90 degree day in Seneca?

The latest in the year that Seneca, Oregon had a high temperature of at least 90 °F is October 2 which happened in 2010.

Earliest Days ≥ 90 °F

Date	Year	Temperature
June 2	2021	90 °F
June 3	2021	93 °F
June 4	2021	100 °F
June 6	1977	91 °F
June 7	1940	90 °F
June 12	1940	90 °F
June 13	1940	93 °F
June 13	1933	91 °F
June 14	1974	90 °F
June 14	1940	91 °F
June 15	1933	94 °F
June 16	1940	92 °F
June 17	1974	92 °F
June 17	1961	90 °F
June 17	1940	95 °F
June 18	2003	90 °F
June 18	1974	90 °F
June 18	1961	92 °F
June 18	1940	97 °F
June 19	1985	90 °F
June 19	1974	94 °F
June 19	1961	90 °F
June 19	1940	95 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
October 2	2010	90 °F
September 30	2020	95 °F
September 25	2009	90 °F
September 24	2009	92 °F
September 18	1981	91 °F
September 18	1935	91 °F
September 17	1935	90 °F
September 16	1995	91 °F
September 15	1995	90 °F
September 15	1951	90 °F
September 14	2020	92 °F
September 14	1953	90 °F
September 13	2009	92 °F
September 12	2009	90 °F
September 11	1990	90 °F
September 11	1953	90 °F
September 7	2020	100 °F
September 7	1955	92 °F
September 7	1944	90 °F
September 6	2006	92 °F
September 6	1988	93 °F
September 6	1957	95 °F
September 6	1955	94 °F