Lowest Temperatures in Cornwall History

This is a list of the 20 lowest temperatures ever recorded in Cornwall, Ontario history from 1867–2024 based on data from the NOAA.

• Lowest temperatures by year
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Rank	Temperature	Date
1	-43.3 °C	January 15, 1957
2	-36.1 °C	February 2, 1874
3	-35.6 °C	February 10, 1951
3	-35.6 °C	February 11, 1868
5	-35.0 °C	January 4, 1981
5	-35.0 °C	January 15, 1884
7	-34.4 °C	January 17, 1957
7	-34.4 °C	January 9, 1887
7	-34.4 °C	December 21, 1879
7	-34.4 °C	January 8, 1878
11	-33.9 °C	February 13, 1954
11	-33.9 °C	February 3, 1885
11	-33.9 °C	January 24, 1882
11	-33.9 °C	December 25, 1872
15	-33.3 °C	December 22, 1955
15	-33.3 °C	December 28, 1951
15	-33.3 °C	February 8, 1868
18	-33.0 °C	February 3, 2023
19	-32.8 °C	January 29, 1954
19	-32.8 °C	January 8, 1887
19	-32.8 °C	December 26, 1884
19	-32.8 °C	February 1, 1874
19	-32.8 °C	January 26, 1874