Earliest and Latest Days of 90° F in Fairfield

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

Also see:

Earliest 90 degree day in Fairfield?

The earliest in the year that Fairfield, Illinois had a high temperature of at least 90 °F is March 23 which happened in 1910.

Latest 90 degree day in Fairfield?

The latest in the year that Fairfield, Illinois had a high temperature of at least 90 °F is October 26 which happened in 1940.

Earliest Days ≥ 90 °F

Date	Year	Temperature
March 23	1910	90 °F
March 24	1929	91 °F
April 11	1930	91 °F
April 17	2019	90 °F
April 23	1925	90 °F
April 24	1925	91 °F
April 25	1915	90 °F
April 28	1915	90 °F
April 29	1899	90 °F
April 30	2007	90 °F
May 2	2012	90 °F
May 2	1952	90 °F
May 3	1902	90 °F
May 4	1959	90 °F
May 5	1959	91 °F
May 5	1952	93 °F
May 5	1949	90 °F
May 5	1902	90 °F
May 6	2012	91 °F
May 6	1949	91 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
October 26	1940	90 °F
October 25	1940	90 °F
October 22	1947	92 °F
October 20	1947	91 °F
October 18	1938	90 °F
October 18	1908	90 °F
October 16	1947	90 °F
October 15	1947	91 °F
October 15	1897	91 °F
October 14	1935	91 °F
October 14	1899	92 °F
October 14	1897	90 °F
October 13	1989	90 °F
October 13	1940	92 °F
October 13	1928	90 °F
October 12	1963	90 °F
October 11	2010	90 °F
October 11	1963	93 °F
October 11	1938	91 °F
October 10	2010	93 °F