Weather on June 21 in Montreal
Historical weather data for June 21 in Montreal, Canada
Based on 47 years of data from MONTREAL MCGILL
About This Date
June 21st in Montreal, Canada typically brings pleasant summer weather, with average highs around 26°C and lows near 17°C. Over 47 years of records, the warmest June 21st was in 2012 (28°C average), while the coldest was 1982 (14°C) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 38% of June 21st dates historically, with the wettest June 21st recording 3.34" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for June 21st in Montreal? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 26°C (79°F) | 16°C (60°F) | -- |
| 2023 | 27°C (80°F) | 15°C (59°F) | 0" |
| 2022 | 20°C (68°F) | 14°C (58°F) | 0.48" |
| 2021 | 30°C (86°F) | 19°C (67°F) | 0.36" |
| 2020 | 33°C (92°F) | 21°C (70°F) | 0" |
| 2019 | 25°C (77°F) | 16°C (60°F) | 0" |
| 2018 | 21°C (70°F) | 13°C (55°F) | 0" |
| 2017 | 22°C (72°F) | 16°C (60°F) | 0" |
| 2016 | 24°C (76°F) | 17°C (62°F) | 0" |
| 2015 | 25°C (77°F) | 19°C (66°F) | 0.2" |
| 2013 | 27°C (81°F) | 16°C (61°F) | 0" |
| 2012 | 33°C (91°F) | 24°C (75°F) | 0" |
| 2011 | 27°C (81°F) | 16°C (60°F) | 0.18" |
| 2010 | 26°C (78°F) | 17°C (63°F) | 0" |
| 2009 | 24°C (76°F) | 18°C (64°F) | 0" |
| 2008 | 25°C (77°F) | 14°C (58°F) | 0.12" |
| 2007 | 20°C (68°F) | 13°C (56°F) | 0" |
| 2006 | 24°C (75°F) | 13°C (56°F) | 0" |
| 2005 | 27°C (81°F) | 17°C (63°F) | 0.48" |
| 2004 | 23°C (74°F) | 14°C (57°F) | 0" |
| 2003 | 28°C (82°F) | 13°C (56°F) | 0" |
| 2002 | 29°C (84°F) | 18°C (65°F) | 0" |
| 2001 | 27°C (80°F) | 16°C (60°F) | 0" |
| 2000 | 22°C (71°F) | 18°C (64°F) | 0.94" |
| 1998 | 31°C (88°F) | 18°C (64°F) | 0.1" |
| 1997 | 27°C (80°F) | 19°C (67°F) | 3.34" |
| 1991 | 23°C (74°F) | 19°C (67°F) | 0" |
| 1990 | 19°C (66°F) | 14°C (58°F) | 0.42" |
| 1989 | 29°C (85°F) | 20°C (68°F) | 0" |
| 1988 | 28°C (82°F) | 20°C (68°F) | 0" |
| 1987 | 28°C (82°F) | 15°C (59°F) | 0" |
| 1986 | 24°C (75°F) | 13°C (56°F) | 0" |
| 1985 | 26°C (78°F) | 13°C (55°F) | 0" |
| 1984 | 25°C (77°F) | 14°C (57°F) | 0" |
| 1983 | 34°C (94°F) | 21°C (69°F) | 0" |
| 1982 | 17°C (63°F) | 12°C (54°F) | 1.26" |
| 1981 | 23°C (74°F) | 16°C (61°F) | 0.08" |
| 1980 | 23°C (73°F) | 13°C (56°F) | 0" |
| 1979 | 28°C (82°F) | 16°C (61°F) | 0" |
| 1978 | 27°C (80°F) | 16°C (61°F) | 1.12" |
| 1977 | 23°C (73°F) | 14°C (58°F) | 0.53" |
| 1976 | 25°C (77°F) | 19°C (66°F) | 0.03" |
| 1975 | 28°C (82°F) | 16°C (60°F) | 0" |
| 1974 | 22°C (71°F) | 18°C (64°F) | 0.15" |
| 1973 | 29°C (85°F) | 22°C (71°F) | 0" |
| 1972 | 23°C (73°F) | 20°C (68°F) | 2.54" |
| 1971 | 25°C (77°F) | 21°C (69°F) | 0.03" |