Earliest and Latest Days of 90° F in Kennewick

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Kennewick, Washington history. It is based on NOAA data from the years 1894–2024.

Also see:

Earliest 90 degree day in Kennewick?

The earliest in the year that Kennewick, Washington had a high temperature of at least 90 °F is April 17 which happened in 1910.

Latest 90 degree day in Kennewick?

The latest in the year that Kennewick, Washington had a high temperature of at least 90 °F is October 6 which happened in 2020.

Earliest Days ≥ 90 °F

Date	Year	Temperature
April 17	1910	90 °F
April 18	1910	95 °F
April 19	1910	90 °F
April 20	1934	91 °F
April 20	1906	91 °F
April 21	1934	93 °F
April 22	1934	94 °F
April 23	2012	91 °F
April 24	1981	90 °F
April 25	1910	95 °F
April 28	1980	90 °F
April 28	1939	91 °F
April 28	1926	93 °F
April 29	1987	91 °F
April 29	1968	90 °F
April 29	1926	95 °F
April 30	1906	90 °F
May 1	1998	92 °F
May 1	1981	91 °F
May 2	2014	90 °F
May 2	1937	90 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
October 6	2020	90 °F
September 26	1952	92 °F
September 26	1942	92 °F
September 26	1899	91 °F
September 26	1897	92 °F
September 25	2021	91 °F
September 25	2003	91 °F
September 25	1974	91 °F
September 25	1952	90 °F
September 25	1943	91 °F
September 25	1942	93 °F
September 25	1940	90 °F
September 24	2001	93 °F
September 24	1942	91 °F
September 24	1899	92 °F
September 23	2011	93 °F
September 23	1999	91 °F
September 23	1942	93 °F
September 23	1939	91 °F
September 23	1896	90 °F