Earliest and Latest Days of 90° F in Galesburg

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Galesburg, Illinois history. It is based on NOAA data from the years 1895–2024.

Also see:

Earliest 90 degree day in Galesburg?

The earliest in the year that Galesburg, Illinois had a high temperature of at least 90 °F is April 25 which happened in 1986.

Latest 90 degree day in Galesburg?

The latest in the year that Galesburg, Illinois had a high temperature of at least 90 °F is October 6 which happened in 1963.

Earliest Days ≥ 90 °F

Date	Year	Temperature
April 25	1986	91 °F
April 29	1952	91 °F
May 4	1959	90 °F
May 4	1952	90 °F
May 5	1959	91 °F
May 5	1952	90 °F
May 5	1949	90 °F
May 8	1963	90 °F
May 9	1963	91 °F
May 11	2011	92 °F
May 11	2007	90 °F
May 11	1956	91 °F
May 12	2022	94 °F
May 12	1956	95 °F
May 13	2022	93 °F
May 14	2022	92 °F
May 14	2007	90 °F
May 15	2013	91 °F
May 16	2001	90 °F
May 17	1996	91 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
October 6	1963	91 °F
October 4	1897	90 °F
October 3	2006	94 °F
October 3	1997	91 °F
October 3	1897	90 °F
October 2	2006	90 °F
October 2	1953	91 °F
October 2	1897	90 °F
October 1	1897	92 °F
September 30	1994	90 °F
September 30	1971	90 °F
September 30	1952	90 °F
September 29	1953	97 °F
September 28	1953	93 °F
September 28	1952	91 °F
September 28	1939	90 °F
September 26	1897	92 °F
September 25	2017	90 °F
September 25	2007	90 °F
September 24	2017	92 °F
September 24	2007	90 °F