Weather on August 11 in Montreal
Historical weather data for August 11 in Montreal, Canada
Based on 51 years of data from MCTAVISH
About This Date
August 11th in Montreal, Canada typically brings pleasant summer weather, with average highs around 26°C and lows near 18°C. Over 51 years of records, the warmest August 11th was in 2025 (29°C average), while the coldest was 2006 (16°C) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 33% of August 11th dates historically, with the wettest August 11th recording 5.24" of rain. The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
Planning for August 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 | 34°C (94°F) | 24°C (75°F) | -- |
| 2023 | 23°C (73°F) | 16°C (61°F) | 0 mm |
| 2022 | 26°C (78°F) | 16°C (60°F) | 11 mm |
| 2021 | 32°C (89°F) | 23°C (73°F) | 6 mm |
| 2020 | 33°C (91°F) | 22°C (71°F) | 11 mm |
| 2019 | 26°C (79°F) | 15°C (59°F) | 0 mm |
| 2018 | 28°C (82°F) | 17°C (62°F) | 0 mm |
| 2017 | 28°C (83°F) | 18°C (65°F) | 0 mm |
| 2016 | 32°C (89°F) | 23°C (73°F) | 0 mm |
| 2015 | 20°C (68°F) | 17°C (63°F) | 133 mm |
| 2014 | 31°C (87°F) | 20°C (68°F) | 0 mm |
| 2013 | 24°C (76°F) | 16°C (60°F) | 0 mm |
| 2012 | 28°C (83°F) | 17°C (62°F) | 24 mm |
| 2011 | 22°C (71°F) | 17°C (62°F) | 0 mm |
| 2010 | 26°C (78°F) | 18°C (65°F) | 0 mm |
| 2009 | 26°C (79°F) | 19°C (66°F) | 19 mm |
| 2008 | 23°C (74°F) | 17°C (63°F) | 0 mm |
| 2007 | 28°C (83°F) | 19°C (66°F) | 0 mm |
| 2006 | 20°C (68°F) | 13°C (55°F) | 0 mm |
| 2005 | 28°C (82°F) | 20°C (68°F) | 0 mm |
| 2004 | 27°C (80°F) | 18°C (65°F) | 3 mm |
| 2003 | 28°C (82°F) | 20°C (68°F) | 28 mm |
| 2002 | 32°C (89°F) | 21°C (69°F) | 0 mm |
| 2001 | 26°C (79°F) | 17°C (62°F) | 0 mm |
| 2000 | 22°C (72°F) | 17°C (62°F) | 0 mm |
| 1999 | 24°C (76°F) | 14°C (57°F) | 0 mm |
| 1998 | 26°C (79°F) | 19°C (66°F) | 19 mm |
| 1997 | 24°C (76°F) | 14°C (58°F) | 26 mm |
| 1994 | 22°C (72°F) | 14°C (58°F) | 0 mm |
| 1992 | 24°C (75°F) | 21°C (69°F) | 1 mm |
| 1991 | 24°C (76°F) | 17°C (63°F) | 6 mm |
| 1990 | 27°C (80°F) | 20°C (68°F) | 0 mm |
| 1989 | 28°C (82°F) | 18°C (64°F) | 0 mm |
| 1988 | 28°C (83°F) | 21°C (69°F) | 0 mm |
| 1987 | 24°C (76°F) | 15°C (59°F) | 0 mm |
| 1986 | 23°C (73°F) | 19°C (66°F) | 0 mm |
| 1985 | 28°C (82°F) | 22°C (72°F) | 0 mm |
| 1984 | 24°C (76°F) | 22°C (71°F) | 0 mm |
| 1983 | 23°C (74°F) | 13°C (56°F) | 0 mm |
| 1982 | 20°C (68°F) | 16°C (60°F) | 0 mm |
| 1981 | 22°C (72°F) | 19°C (67°F) | 57 mm |
| 1980 | 27°C (81°F) | 17°C (62°F) | 37 mm |
| 1979 | 21°C (69°F) | 13°C (56°F) | 0 mm |
| 1978 | 27°C (80°F) | 16°C (61°F) | 0 mm |
| 1977 | 23°C (74°F) | 16°C (60°F) | 3 mm |
| 1976 | 28°C (82°F) | 18°C (64°F) | 0 mm |
| 1975 | 28°C (82°F) | 21°C (70°F) | 0 mm |
| 1974 | 27°C (81°F) | 14°C (58°F) | 0 mm |
| 1973 | 29°C (85°F) | 22°C (71°F) | 10 mm |
| 1972 | 23°C (74°F) | 11°C (52°F) | 0 mm |
| 1971 | 27°C (80°F) | 18°C (65°F) | 20 mm |