Weather on July 21 in Montreal
Historical weather data for July 21 in Montreal, Canada
Based on 48 years of data from MONTREAL MCGILL
About This Date
July 21st in Montreal, Canada typically brings warm summer weather, with average highs around 27°C and lows near 18°C. Over 48 years of records, the warmest July 21st was in 2011 (30°C average), while the coldest was 2000 (18°C) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 40% of July 21st dates historically, with the wettest July 21st recording 3.61" of rain. The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
Planning for July 21st in Montreal? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 24°C (76°F) | 14°C (58°F) | -- |
| 2023 | 24°C (76°F) | 18°C (65°F) | 37 mm |
| 2022 | 31°C (88°F) | 24°C (75°F) | 0 mm |
| 2021 | 24°C (76°F) | 16°C (61°F) | 8 mm |
| 2020 | 26°C (78°F) | 18°C (65°F) | 0 mm |
| 2019 | 30°C (86°F) | 21°C (69°F) | 0 mm |
| 2018 | 32°C (89°F) | 21°C (70°F) | 0 mm |
| 2017 | 28°C (83°F) | 19°C (66°F) | 15 mm |
| 2016 | 31°C (87°F) | 18°C (65°F) | 5 mm |
| 2015 | 24°C (76°F) | 17°C (62°F) | 27 mm |
| 2014 | 31°C (87°F) | 21°C (69°F) | -- |
| 2013 | 22°C (72°F) | -- | -- |
| 2012 | 27°C (81°F) | 16°C (60°F) | 0 mm |
| 2011 | 35°C (95°F) | 26°C (78°F) | 20 mm |
| 2010 | 28°C (82°F) | 17°C (63°F) | 42 mm |
| 2009 | 27°C (80°F) | 17°C (62°F) | 0 mm |
| 2008 | 24°C (76°F) | 18°C (64°F) | 33 mm |
| 2007 | 25°C (77°F) | 16°C (60°F) | 0 mm |
| 2006 | 28°C (82°F) | 20°C (68°F) | 3 mm |
| 2005 | 29°C (85°F) | 20°C (68°F) | 0 mm |
| 2004 | 29°C (84°F) | 19°C (66°F) | 3 mm |
| 2003 | 25°C (77°F) | 17°C (62°F) | 40 mm |
| 2002 | 29°C (85°F) | 17°C (63°F) | 0 mm |
| 2001 | 30°C (86°F) | 21°C (70°F) | 0 mm |
| 2000 | 22°C (71°F) | 15°C (59°F) | 0 mm |
| 1998 | 31°C (87°F) | 17°C (62°F) | 0 mm |
| 1997 | 24°C (76°F) | 17°C (63°F) | 0 mm |
| 1991 | 27°C (81°F) | 21°C (70°F) | 2 mm |
| 1990 | 27°C (81°F) | 19°C (66°F) | 6 mm |
| 1989 | 28°C (82°F) | 15°C (59°F) | 0 mm |
| 1988 | 23°C (73°F) | 19°C (66°F) | 0 mm |
| 1987 | 25°C (77°F) | 17°C (62°F) | 1 mm |
| 1986 | 23°C (73°F) | 16°C (60°F) | 0 mm |
| 1985 | 28°C (82°F) | 18°C (65°F) | 0 mm |
| 1984 | 28°C (83°F) | 19°C (66°F) | 0 mm |
| 1983 | 24°C (76°F) | 18°C (65°F) | 8 mm |
| 1982 | 28°C (82°F) | 15°C (59°F) | 0 mm |
| 1981 | 27°C (80°F) | 20°C (68°F) | 0 mm |
| 1980 | 23°C (73°F) | 18°C (64°F) | 92 mm |
| 1979 | 29°C (85°F) | 19°C (67°F) | 0 mm |
| 1978 | 28°C (83°F) | 22°C (72°F) | 1 mm |
| 1977 | 30°C (86°F) | 26°C (78°F) | 0 mm |
| 1976 | 26°C (78°F) | 18°C (64°F) | 0 mm |
| 1975 | 25°C (77°F) | 19°C (67°F) | 10 mm |
| 1974 | 27°C (80°F) | 17°C (62°F) | 0 mm |
| 1973 | 28°C (82°F) | 18°C (65°F) | 0 mm |
| 1972 | 32°C (89°F) | 23°C (74°F) | 3 mm |
| 1971 | 27°C (80°F) | 15°C (59°F) | 0 mm |