Lowest Daily High Temperatures in Great Falls History

This is a list of the coldest daily high temperatures ever recorded in Great Falls, Montana history from 1892–2024 based on data from the NOAA.

Lowest temperatures all-time

Record for the lowest daily high temperature in Great Falls

The lowest high temperature for a calendar day in Great Falls, Montana history was -26 °F which happened on Sunday, December 29, 1968.

Rank	Temperature	Date
1	-26 °F	December 29, 1968
2	-25 °F	December 24, 1983
2	-25 °F	January 21, 1943
2	-25 °F	January 27, 1916
5	-24 °F	December 16, 1924
5	-24 °F	January 29, 1916
7	-23 °F	January 12, 1911
8	-22 °F	January 12, 2024
8	-22 °F	February 2, 1989
8	-22 °F	January 14, 1950
8	-22 °F	February 7, 1936
8	-22 °F	January 28, 1929
8	-22 °F	January 28, 1916
14	-21 °F	February 3, 1989
14	-21 °F	January 28, 1969
14	-21 °F	January 24, 1950
14	-21 °F	February 15, 1936
14	-21 °F	January 19, 1935
14	-21 °F	January 29, 1929
20	-20 °F	December 19, 1990
20	-20 °F	February 1, 1989
20	-20 °F	December 16, 1964
20	-20 °F	January 13, 1950
20	-20 °F	January 22, 1943
20	-20 °F	February 16, 1936
20	-20 °F	January 18, 1935
20	-20 °F	January 12, 1916
20	-20 °F	January 11, 1911
20	-20 °F	January 8, 1909
20	-20 °F	February 2, 1893
20	-20 °F	January 31, 1893