Highest Temperatures in Ottawa History
This is a list of the 20 highest temperatures ever recorded in
Ottawa, Ontario history from 1889–2024 based on data from the NOAA.
What's the hottest it has ever gotten in Ottawa?
The hottest temperature in Ottawa, Ontario history is 37.8 °C which has happened 5 times, most recently on Monday August 14, 1944.
| Rank |
Temperature |
Date |
| 1 |
37.8 °C |
August 14, 1944 |
| 1 |
37.8 °C |
July 13, 1921 |
| 1 |
37.8 °C |
August 1, 1917 |
| 1 |
37.8 °C |
July 30, 1916 |
| 1 |
37.8 °C |
July 4, 1913 |
| 6 |
37.3 °C |
August 9, 2001 |
| 7 |
37.2 °C |
August 1, 1955 |
| 7 |
37.2 °C |
August 11, 1944 |
| 7 |
37.2 °C |
July 2, 1931 |
| 7 |
37.2 °C |
July 4, 1919 |
| 7 |
37.2 °C |
July 16, 1901 |
| 12 |
37.0 °C |
July 10, 2020 |
| 13 |
36.7 °C |
July 22, 1955 |
| 13 |
36.7 °C |
August 15, 1944 |
| 13 |
36.7 °C |
September 11, 1931 |
| 13 |
36.7 °C |
July 1, 1931 |
| 13 |
36.7 °C |
July 7, 1921 |
| 13 |
36.7 °C |
June 22, 1921 |
| 13 |
36.7 °C |
July 30, 1917 |
| 13 |
36.7 °C |
August 22, 1916 |
| 13 |
36.7 °C |
August 20, 1916 |
| 13 |
36.7 °C |
July 25, 1916 |
| 13 |
36.7 °C |
July 24, 1916 |
| 13 |
36.7 °C |
August 1, 1911 |
| 13 |
36.7 °C |
July 3, 1911 |
Weather Station Details
| Years |
Station |
Coordinates |
| 1889–2024 |
Ottawa CDA |
location |