Lowest Daily High Temperatures in St. Catharines History

This is a list of the coldest daily high temperatures ever recorded in St. Catharines, Ontario history from 1882–2024 based on data from the NOAA.

Lowest temperatures all-time

Record for the lowest daily high temperature in St. Catharines

The lowest high temperature for a calendar day in St. Catharines, Ontario history was -20.6 °C which happened on Thursday, February 8, 1934.

Rank	Temperature	Date
1	-20.6 °C	February 8, 1934
2	-18.9 °C	January 14, 1914
3	-18.3 °C	February 12, 1914
4	-18.0 °C	January 19, 1994
5	-17.8 °C	December 29, 1933
6	-17.2 °C	February 9, 1934
7	-16.0 °C	January 15, 1994
8	-15.6 °C	January 15, 1972
8	-15.6 °C	February 15, 1943
8	-15.6 °C	February 18, 1936
11	-15.0 °C	January 31, 1971
11	-15.0 °C	February 11, 1914
13	-14.4 °C	January 7, 1942
13	-14.4 °C	January 27, 1925
13	-14.4 °C	January 21, 1924
16	-14.0 °C	February 15, 2015
16	-14.0 °C	January 26, 1994
16	-14.0 °C	January 18, 1994
16	-14.0 °C	January 11, 1981
20	-13.9 °C	February 16, 1973
20	-13.9 °C	February 1, 1971
20	-13.9 °C	January 18, 1971
20	-13.9 °C	January 8, 1968
20	-13.9 °C	January 14, 1965
20	-13.9 °C	January 21, 1943
20	-13.9 °C	December 20, 1942
20	-13.9 °C	January 29, 1934
20	-13.9 °C	February 9, 1933
20	-13.9 °C	January 10, 1912
20	-13.9 °C	February 18, 1903