Lowest Daily High Temperatures in Boulder History

This is a list of the coldest daily high temperatures ever recorded in Boulder, Colorado history from 1893–2024 based on data from the NOAA.
Record for the lowest daily high temperature in Boulder
The lowest high temperature for a calendar day in Boulder, Colorado history was -12 °F which happened on Saturday, February 4, 1989.
Rank Temperature Date
1 -12 °F February 4, 1989
2 -8 °F December 21, 1990
3 -5 °F February 3, 1989
3 -5 °F February 9, 1933
5 -4 °F January 7, 1937
6 -3 °F January 29, 1951
6 -3 °F February 7, 1933
8 -2 °F December 24, 1983
8 -2 °F December 21, 1983
8 -2 °F January 11, 1963
8 -2 °F December 9, 1932
12 0 °F December 22, 1983
12 0 °F January 21, 1937
14 1 °F January 12, 1997
14 1 °F February 11, 1899
14 1 °F February 2, 1899
17 2 °F January 15, 2024
17 2 °F December 22, 1990
17 2 °F December 23, 1983
17 2 °F January 8, 1937
17 2 °F February 3, 1899