Lowest January Temperatures in Dubuque

A list of the lowest temperatures ever recorded in the month of January in Dubuque, Iowa from 1938–2024.
What's the coldest it has ever gotten in Dubuque in January?
The coldest January temperature in Dubuque, Iowa history was -31 °F which occurred on January 31, 2019.
Rank Temperature Date
1 -31 °F January 31, 2019
2 -30 °F January 16, 2009
3 -28 °F January 30, 2019
3 -28 °F January 21, 1970
5 -27 °F January 20, 1985
5 -27 °F January 19, 1985
7 -26 °F January 15, 2009
7 -26 °F January 16, 1977
9 -24 °F January 31, 1996
9 -24 °F January 19, 1994
9 -24 °F January 18, 1994
9 -24 °F January 21, 1984
9 -24 °F January 29, 1966
9 -24 °F January 23, 1963
15 -23 °F January 5, 1999
15 -23 °F January 31, 1994
15 -23 °F January 15, 1979
15 -23 °F January 6, 1970
15 -23 °F January 18, 1967
15 -23 °F January 21, 1963
15 -23 °F January 4, 1947