Earliest and Latest Days of 100° F in Ottawa

This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in Ottawa, Kansas history. It is based on NOAA data from the years 1895–2024.

Also see:

Earliest 100 degree day in Ottawa?

The earliest in the year that Ottawa, Kansas had a high temperature of at least 100 °F is May 28 which happened in 1895.

Latest 100 degree day in Ottawa?

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

Earliest Days ≥ 100 °F

Date	Year	Temperature
May 28	1895	100 °F
May 30	1934	100 °F
May 31	2000	101 °F
May 31	1934	100 °F
June 8	1911	100 °F
June 9	1911	100 °F
June 10	1933	100 °F
June 11	1953	105 °F
June 11	1918	100 °F
June 12	1953	104 °F
June 13	1953	105 °F
June 15	1953	102 °F
June 15	1952	100 °F
June 15	1946	101 °F
June 15	1918	100 °F
June 16	1918	101 °F
June 16	1911	101 °F
June 17	1953	100 °F
June 17	1918	102 °F
June 18	1953	104 °F
June 18	1952	102 °F
June 18	1936	102 °F
June 18	1918	102 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
September 29	1953	101 °F
September 28	1953	104 °F
September 19	1954	102 °F
September 18	1931	100 °F
September 17	1953	100 °F
September 16	1931	100 °F
September 15	1939	100 °F
September 14	1939	100 °F
September 13	1956	100 °F
September 13	1931	100 °F
September 13	1911	100 °F
September 12	1956	104 °F
September 11	2000	103 °F
September 11	1956	102 °F
September 11	1953	101 °F
September 11	1936	102 °F
September 10	1936	101 °F
September 10	1919	100 °F
September 9	1955	100 °F
September 8	1955	101 °F
September 8	1947	101 °F
September 8	1939	100 °F
September 8	1922	101 °F