|
Typical Montreal September Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 21.3 °C | |
| Average daily low | 11.1 °C | |
| Average monthly precipitation | 8.4 cm | |
| Average monthly snow | none | |
| Daily chance of precipitation | 37.9% | |
| Daily chance of snow | 0% | |
|
Montreal September Weather Records 1871–2024 |
||
|---|---|---|
| Highest temperature | 33.5 °C | September 3, 2010 |
| Lowest temperature | -2.2 °C | September 30, 1951 |
| Highest daily low | 23.3 °C | September 11, 1961 |
| Lowest daily high | 6.1 °C | September 29, 1911 |
| Hottest average high temperature | 24.4 °C | 1961 |
| Coldest average high temperature | 16.2 °C | 1918 |
| Most daily precipitation | 8.2 cm | September 14, 1979 |
| Most monthly precipitation | 22.8 cm | 1975 |
| Most daily snow | 6.1 cm | September 30, 1946 |
| Most monthly snow | 6.1 cm | 1946 |
| Day | Average (°C) | Record (°C) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| September 1 | 23.8 | 13.5 | 32.2 | 5.6 |
| September 2 | 23.6 | 13.3 | 31.1 | 5.2 |
| September 3 | 23.5 | 13.2 | 33.5 | 4.4 |
| September 4 | 23.3 | 13.0 | 33.5 | 4.5 |
| September 5 | 23.2 | 12.8 | 33.3 | 4.4 |
| September 6 | 23.1 | 12.7 | 32.8 | 3.9 |
| September 7 | 23.0 | 12.6 | 32.4 | 1.8 |
| September 8 | 22.8 | 12.4 | 32.2 | 3.0 |
| September 9 | 22.6 | 12.2 | 33.5 | 3.3 |
| September 10 | 22.4 | 12.0 | 32.0 | 3.5 |
| September 11 | 22.2 | 11.8 | 32.2 | 2.8 |
| September 12 | 22.0 | 11.6 | 28.9 | 3.3 |
| September 13 | 21.9 | 11.5 | 31.7 | 2.2 |
| September 14 | 21.7 | 11.4 | 30.8 | 2.7 |
| September 15 | 21.4 | 11.1 | 31.1 | 2.8 |
| September 16 | 21.2 | 10.9 | 30.6 | 0.6 |
| September 17 | 20.9 | 10.8 | 29.6 | 1.4 |
| September 18 | 20.7 | 10.6 | 30.0 | 1.7 |
| September 19 | 20.4 | 10.3 | 29.4 | 1.1 |
| September 20 | 20.2 | 10.1 | 31.4 | 0.2 |
| September 21 | 19.9 | 9.9 | 28.9 | 0.6 |
| September 22 | 19.6 | 9.6 | 30.6 | 0.0 |
| September 23 | 19.4 | 9.4 | 30.0 | -1.7 |
| September 24 | 19.1 | 9.2 | 30.2 | -1.7 |
| September 25 | 18.9 | 9.1 | 31.6 | -0.2 |
| September 26 | 18.7 | 8.9 | 29.7 | -1.5 |
| September 27 | 18.4 | 8.7 | 30.9 | -1.2 |
| September 28 | 18.2 | 8.4 | 29.4 | -1.7 |
| September 29 | 18.0 | 8.2 | 30.0 | -1.7 |
| September 30 | 17.8 | 8.0 | 26.7 | -2.2 |