Weather on August 31 in Montreal
Historical weather data for August 31 in Montreal, Canada
Based on 51 years of data from MCTAVISH
About This Date
August 31st in Montreal, Canada typically brings pleasant summer weather, with average highs around 23°C and lows near 15°C. Over 51 years of records, the warmest August 31st was in 2010 (27°C average), while the coldest was 1976 (13°C) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 39% of August 31st dates historically, with the wettest August 31st recording 9.47" of rain. The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
Planning for August 31st in Montreal? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 24°C (76°F) | 14°C (57°F) | -- |
| 2023 | 21°C (69°F) | 11°C (52°F) | 0 mm |
| 2022 | 23°C (74°F) | 16°C (60°F) | 2 mm |
| 2021 | 27°C (80°F) | 18°C (64°F) | 0 mm |
| 2020 | 22°C (71°F) | 12°C (53°F) | 0 mm |
| 2019 | 22°C (71°F) | 14°C (57°F) | 0 mm |
| 2018 | 24°C (76°F) | 12°C (53°F) | 0 mm |
| 2017 | 20°C (68°F) | 9°C (49°F) | 1 mm |
| 2016 | 26°C (79°F) | 18°C (65°F) | 0 mm |
| 2015 | 26°C (78°F) | 19°C (67°F) | 0 mm |
| 2014 | 26°C (78°F) | 19°C (67°F) | 27 mm |
| 2013 | 24°C (75°F) | 19°C (67°F) | 0 mm |
| 2012 | 26°C (78°F) | 19°C (67°F) | 3 mm |
| 2011 | 23°C (73°F) | 15°C (59°F) | 0 mm |
| 2010 | 32°C (90°F) | 22°C (72°F) | 0 mm |
| 2009 | 20°C (68°F) | 11°C (51°F) | 0 mm |
| 2008 | 26°C (78°F) | 17°C (62°F) | 0 mm |
| 2007 | 23°C (73°F) | 13°C (56°F) | 0 mm |
| 2006 | 21°C (70°F) | 12°C (53°F) | 0 mm |
| 2005 | 22°C (72°F) | 18°C (64°F) | 241 mm |
| 2004 | 24°C (75°F) | 14°C (58°F) | 10 mm |
| 2003 | 21°C (70°F) | 12°C (54°F) | 3 mm |
| 2002 | 25°C (77°F) | 12°C (54°F) | 3 mm |
| 2001 | 28°C (83°F) | 18°C (64°F) | 52 mm |
| 2000 | 29°C (85°F) | 20°C (68°F) | 0 mm |
| 1999 | 26°C (78°F) | 12°C (53°F) | 0 mm |
| 1998 | 22°C (71°F) | 15°C (59°F) | 3 mm |
| 1997 | 26°C (78°F) | 14°C (58°F) | 0 mm |
| 1994 | 14°C (58°F) | 12°C (53°F) | 0 mm |
| 1992 | 19°C (67°F) | 16°C (60°F) | 8 mm |
| 1991 | 21°C (69°F) | 17°C (63°F) | 1 mm |
| 1990 | 26°C (78°F) | 17°C (63°F) | 0 mm |
| 1989 | 22°C (71°F) | 12°C (54°F) | 4 mm |
| 1988 | 22°C (72°F) | 13°C (55°F) | 1 mm |
| 1987 | 27°C (80°F) | 17°C (62°F) | 37 mm |
| 1986 | 23°C (73°F) | 12°C (54°F) | 0 mm |
| 1985 | 18°C (64°F) | 9°C (49°F) | 0 mm |
| 1984 | 23°C (74°F) | 16°C (61°F) | 2 mm |
| 1983 | 23°C (73°F) | 16°C (60°F) | 0 mm |
| 1982 | 21°C (70°F) | 14°C (58°F) | 0 mm |
| 1981 | 24°C (75°F) | 19°C (66°F) | 20 mm |
| 1980 | 24°C (76°F) | 20°C (68°F) | 77 mm |
| 1979 | 20°C (68°F) | 12°C (54°F) | 0 mm |
| 1978 | 21°C (69°F) | 16°C (60°F) | 0 mm |
| 1977 | 26°C (78°F) | 13°C (56°F) | 0 mm |
| 1976 | 18°C (64°F) | 8°C (46°F) | 46 mm |
| 1975 | 22°C (72°F) | 11°C (51°F) | 0 mm |
| 1974 | 24°C (76°F) | 16°C (61°F) | 3 mm |
| 1973 | 31°C (87°F) | 22°C (72°F) | 0 mm |
| 1972 | 28°C (82°F) | 19°C (66°F) | 0 mm |
| 1971 | 20°C (68°F) | 11°C (52°F) | 0 mm |