Highest Temperatures in Ottumwa History

This is a list of the 20 highest temperatures ever recorded in Ottumwa, Iowa history from 1894–2024 based on data from the NOAA.
What's the hottest it has ever gotten in Ottumwa?
The hottest temperature in Ottumwa, Iowa history is 115 °F which has happened twice, most recently on Wednesday July 15, 1936.
Rank Temperature Date
1 115 °F July 15, 1936
1 115 °F August 8, 1934
3 114 °F July 14, 1936
4 113 °F August 9, 1934
5 112 °F July 13, 1936
6 111 °F July 25, 1936
6 111 °F August 6, 1934
6 111 °F July 24, 1934
6 111 °F July 20, 1934
10 110 °F July 25, 1934
10 110 °F July 21, 1934
10 110 °F July 19, 1934
10 110 °F July 5, 1911
14 109 °F August 18, 1936
14 109 °F August 14, 1936
14 109 °F July 16, 1936
14 109 °F July 12, 1936
14 109 °F August 4, 1918
19 108 °F July 5, 1936
19 108 °F July 4, 1936
19 108 °F August 10, 1934
19 108 °F July 23, 1934
19 108 °F July 22, 1934
19 108 °F August 3, 1930
19 108 °F July 27, 1930
19 108 °F June 5, 1911
19 108 °F July 22, 1901
Weather Station Details
Years Station Coordinates
1949–2024 Ottumwa Industrial Airport location
1894–1948 Ottumwa 1 WSW location