Highest Temperatures in St. Catharines History
This is a list of the 20 highest temperatures ever recorded in
St. Catharines, Ontario history from 1882–2024 based on data from the NOAA.
What's the hottest it has ever gotten in St. Catharines?
The hottest temperature in St. Catharines, Ontario history is 40.0 °C which happened on Friday, July 10, 1936.
| Rank |
Temperature |
Date |
| 1 |
40.0 °C |
July 10, 1936 |
| 2 |
39.4 °C |
July 9, 1936 |
| 3 |
38.3 °C |
August 27, 1948 |
| 3 |
38.3 °C |
July 13, 1936 |
| 5 |
37.8 °C |
August 26, 1948 |
| 5 |
37.8 °C |
July 11, 1936 |
| 5 |
37.8 °C |
July 8, 1936 |
| 8 |
37.5 °C |
July 7, 1988 |
| 9 |
37.2 °C |
July 3, 1949 |
| 9 |
37.2 °C |
July 23, 1933 |
| 11 |
37.0 °C |
July 8, 1988 |
| 12 |
36.7 °C |
August 3, 1955 |
| 12 |
36.7 °C |
September 3, 1953 |
| 12 |
36.7 °C |
August 9, 1949 |
| 12 |
36.7 °C |
August 28, 1948 |
| 12 |
36.7 °C |
August 25, 1948 |
| 12 |
36.7 °C |
July 30, 1933 |
| 12 |
36.7 °C |
August 7, 1918 |
| 19 |
36.1 °C |
August 1, 1975 |
| 19 |
36.1 °C |
July 27, 1955 |
| 19 |
36.1 °C |
July 21, 1955 |
| 19 |
36.1 °C |
September 13, 1952 |
| 19 |
36.1 °C |
July 27, 1941 |
| 19 |
36.1 °C |
June 28, 1933 |
Weather Station Details
| Years |
Station |
Coordinates |
| 1995–2024 |
Port Weller (AUT) |
location |
| 1882–1994 |
St Catherines |
location |