Earliest and Latest Days of 100° F in Springfield

This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in Springfield, Illinois history. It is based on NOAA data from the years 1901–2024.

Also see:

Earliest 100 degree day in Springfield?

The earliest in the year that Springfield, Illinois had a high temperature of at least 100 °F is May 31 which happened in 1934.

Latest 100 degree day in Springfield?

The latest in the year that Springfield, Illinois had a high temperature of at least 100 °F is September 29 which happened in 1953.

Earliest Days ≥ 100 °F

Date	Year	Temperature
May 31	1934	101 °F
June 1	1934	104 °F
June 3	1911	100 °F
June 5	1977	100 °F
June 9	1911	101 °F
June 10	1911	101 °F
June 14	1987	100 °F
June 15	1987	100 °F
June 16	1918	100 °F
June 17	1944	100 °F
June 19	1953	101 °F
June 20	1953	102 °F
June 20	1936	100 °F
June 24	1937	100 °F
June 25	1988	101 °F
June 25	1971	100 °F
June 25	1954	100 °F
June 25	1937	100 °F
June 25	1934	102 °F
June 26	1971	100 °F
June 26	1954	103 °F
June 26	1934	102 °F
June 26	1933	100 °F
June 26	1914	100 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
September 29	1953	100 °F
September 16	1939	100 °F
September 15	1939	100 °F
September 14	1939	100 °F
September 13	1939	100 °F
September 9	1925	100 °F
September 7	1939	100 °F
September 6	1954	100 °F
September 6	1925	100 °F
September 4	1954	100 °F
September 3	2011	100 °F
September 2	2011	101 °F
September 1	2011	102 °F
September 1	1984	101 °F
August 26	1936	103 °F
August 25	1936	100 °F
August 24	1947	101 °F
August 24	1943	100 °F
August 24	1936	101 °F
August 24	1922	100 °F