Weather on September 11 in Montreal
Historical weather data for September 11 in Montreal, Canada
Based on 51 years of data from MCTAVISH
About This Date
September 11th in Montreal, Canada typically brings pleasant fall weather, with average highs around 22°C and lows near 13°C. Over 51 years of records, the warmest September 11th was in 1983 (25°C average), while the coldest was 1979 (12°C) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 37% of September 11th dates historically, with the wettest September 11th recording 3.58" of rain. The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
Planning for September 11th in Montreal? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 23°C (73°F) | 16°C (61°F) | -- |
| 2023 | 23°C (73°F) | 16°C (60°F) | 0 mm |
| 2022 | 29°C (84°F) | 18°C (65°F) | 1 mm |
| 2021 | 23°C (73°F) | 15°C (59°F) | 0 mm |
| 2019 | 26°C (79°F) | 14°C (57°F) | 6 mm |
| 2018 | 19°C (67°F) | 13°C (55°F) | 29 mm |
| 2017 | 23°C (73°F) | 13°C (55°F) | 0 mm |
| 2016 | 23°C (73°F) | 14°C (57°F) | 3 mm |
| 2015 | 26°C (78°F) | 15°C (59°F) | 0 mm |
| 2014 | 23°C (74°F) | 11°C (51°F) | 18 mm |
| 2013 | 31°C (87°F) | 18°C (65°F) | -- |
| 2012 | 22°C (71°F) | 11°C (51°F) | 0 mm |
| 2011 | 22°C (71°F) | 10°C (50°F) | 0 mm |
| 2010 | 23°C (73°F) | 13°C (55°F) | 0 mm |
| 2009 | 22°C (71°F) | 13°C (55°F) | 0 mm |
| 2008 | 21°C (69°F) | 9°C (48°F) | 0 mm |
| 2007 | 19°C (67°F) | 14°C (57°F) | 39 mm |
| 2006 | 17°C (63°F) | 8°C (46°F) | 0 mm |
| 2005 | 22°C (72°F) | 11°C (52°F) | 0 mm |
| 2004 | 23°C (74°F) | 12°C (54°F) | 0 mm |
| 2003 | 27°C (80°F) | 16°C (61°F) | 3 mm |
| 2002 | 21°C (69°F) | 10°C (50°F) | 44 mm |
| 2001 | 22°C (72°F) | 15°C (59°F) | -- |
| 2000 | 20°C (68°F) | 18°C (65°F) | 51 mm |
| 1999 | 22°C (72°F) | 14°C (58°F) | 0 mm |
| 1998 | 23°C (73°F) | 13°C (55°F) | 3 mm |
| 1997 | 22°C (71°F) | 17°C (62°F) | 17 mm |
| 1996 | 24°C (75°F) | 14°C (58°F) | 0 mm |
| 1994 | 20°C (68°F) | 11°C (51°F) | 0 mm |
| 1992 | 18°C (65°F) | 13°C (55°F) | 0 mm |
| 1991 | 16°C (61°F) | 11°C (52°F) | 0 mm |
| 1990 | 20°C (68°F) | 13°C (56°F) | 0 mm |
| 1989 | 19°C (67°F) | 17°C (62°F) | 0 mm |
| 1988 | 18°C (64°F) | 12°C (54°F) | 0 mm |
| 1987 | 23°C (73°F) | 14°C (57°F) | 51 mm |
| 1986 | 21°C (70°F) | 14°C (57°F) | 39 mm |
| 1985 | 16°C (61°F) | 8°C (46°F) | 0 mm |
| 1984 | 18°C (65°F) | 15°C (59°F) | 6 mm |
| 1983 | 28°C (83°F) | 22°C (71°F) | 0 mm |
| 1982 | 28°C (82°F) | 18°C (64°F) | 0 mm |
| 1981 | 17°C (62°F) | 11°C (52°F) | 0 mm |
| 1980 | 23°C (73°F) | 13°C (55°F) | 0 mm |
| 1979 | 17°C (62°F) | 7°C (44°F) | 0 mm |
| 1978 | 17°C (63°F) | 13°C (55°F) | 12 mm |
| 1977 | 16°C (61°F) | 12°C (53°F) | 0 mm |
| 1976 | 16°C (61°F) | 11°C (52°F) | 13 mm |
| 1975 | 25°C (77°F) | 13°C (55°F) | 91 mm |
| 1974 | 26°C (78°F) | 13°C (56°F) | 0 mm |
| 1973 | 22°C (71°F) | 13°C (55°F) | 1 mm |
| 1972 | 23°C (73°F) | 13°C (55°F) | 0 mm |
| 1971 | 26°C (78°F) | 17°C (62°F) | 43 mm |