September weather in Montreal, Canada
Averages from 150 days in September across 2020–2024.
Typical conditions
| Average high | 21.3°C |
|---|---|
| Average low | 13°C |
| Average mean | 16.9°C |
| Total precipitation | 399.1 mm |
| Rainy days | 69 |
| Average precipitation hours | 3 h |
| Average max wind speed | 17.4 km/h |
| Average sunshine | 9.3 h/day |
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