Lowest October Temperatures in Ottumwa

A list of the lowest temperatures ever recorded in the month of October in Ottumwa, Iowa from 1894–2024.
What's the coldest it has ever gotten in Ottumwa in October?
The coldest October temperature in Ottumwa, Iowa history was 5 °F which occurred on October 30, 1925.
Rank Temperature Date
1 5 °F October 30, 1925
2 12 °F October 28, 1925
3 15 °F October 29, 1925
3 15 °F October 30, 1895
5 16 °F October 31, 1925
6 17 °F October 19, 1972
6 17 °F October 30, 1917
6 17 °F October 13, 1917
6 17 °F October 31, 1913
6 17 °F October 29, 1895
11 18 °F October 26, 1942
11 18 °F October 21, 1930
13 19 °F October 19, 2022
13 19 °F October 27, 1936
15 20 °F October 24, 2006
15 20 °F October 27, 1997
15 20 °F October 31, 1993
15 20 °F October 29, 1952
15 20 °F October 14, 1937
15 20 °F October 27, 1925
15 20 °F October 21, 1913
15 20 °F October 29, 1910
15 20 °F October 23, 1895