Weather on April 21 in Montreal
Historical weather data for April 21 in Montreal, Canada
Based on 52 years of data from MONTREAL MCGILL
About This Date
April 21st in Montreal, Canada typically brings cool spring weather, with average highs around 13°C and lows near 4°C. Over 52 years of records, the warmest April 21st was in 1987 (22°C average), while the coldest was 1981 (-2°C) — a 42°F range across recorded history. Rain or other precipitation has occurred on about 46% of April 21st dates historically, with the wettest April 21st recording 2.92" of rain. The last decade has been 3.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.9°F cooler on this date compared to 20-30 years ago.
Planning for April 21st in Montreal? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 9°C (48°F) | -1°C (30°F) | -- |
| 2025 | 13°C (56°F) | 3°C (37°F) | -- |
| 2024 | 8°C (47°F) | 1°C (33°F) | 2 mm |
| 2023 | 14°C (58°F) | 2°C (36°F) | 0 mm |
| 2022 | 12°C (53°F) | 1°C (34°F) | 8 mm |
| 2021 | 4°C (39°F) | -2°C (28°F) | 15 mm |
| 2020 | 8°C (47°F) | -2°C (29°F) | 5 mm |
| 2019 | 17°C (63°F) | 6°C (42°F) | 0 mm |
| 2018 | 12°C (53°F) | 3°C (37°F) | 0 mm |
| 2017 | 11°C (52°F) | 7°C (44°F) | 18 mm |
| 2016 | 21°C (70°F) | 5°C (41°F) | 0 mm |
| 2015 | 13°C (55°F) | 7°C (44°F) | 41 mm |
| 2014 | 19°C (67°F) | 9°C (49°F) | 0 mm |
| 2013 | 7°C (44°F) | -2°C (28°F) | 0 mm |
| 2012 | 6°C (43°F) | 1°C (34°F) | 43 mm |
| 2011 | 6°C (43°F) | 0°C (32°F) | 3 mm |
| 2010 | 17°C (63°F) | 7°C (45°F) | 0 mm |
| 2009 | 9°C (49°F) | 4°C (40°F) | 19 mm |
| 2008 | 19°C (67°F) | 7°C (44°F) | 0 mm |
| 2007 | 20°C (68°F) | 11°C (52°F) | 0 mm |
| 2006 | 19°C (66°F) | 4°C (40°F) | 0 mm |
| 2005 | 10°C (50°F) | 1°C (34°F) | -- |
| 2004 | 18°C (64°F) | 5°C (41°F) | 0 mm |
| 2003 | 16°C (60°F) | 9°C (49°F) | 35 mm |
| 2002 | 6°C (42°F) | -1°C (30°F) | 0 mm |
| 2001 | 21°C (69°F) | 7°C (44°F) | 0 mm |
| 2000 | 7°C (45°F) | 3°C (38°F) | 37 mm |
| 1999 | 16°C (60°F) | 6°C (43°F) | -- |
| 1998 | 17°C (62°F) | 5°C (41°F) | -- |
| 1997 | 13°C (56°F) | 4°C (39°F) | 0 mm |
| 1992 | 24°C (76°F) | 13°C (55°F) | 24 mm |
| 1991 | 7°C (45°F) | 3°C (38°F) | 74 mm |
| 1990 | 13°C (56°F) | -- | 1 mm |
| 1989 | 13°C (55°F) | 3°C (37°F) | 0 mm |
| 1988 | 9°C (49°F) | 1°C (34°F) | 0 mm |
| 1987 | 28°C (82°F) | 16°C (61°F) | 0 mm |
| 1986 | 13°C (55°F) | 9°C (48°F) | 16 mm |
| 1985 | 18°C (64°F) | 8°C (46°F) | 3 mm |
| 1984 | 6°C (42°F) | 1°C (34°F) | 0 mm |
| 1983 | 6°C (42°F) | 2°C (35°F) | 1 mm |
| 1982 | 8°C (46°F) | 3°C (37°F) | 0 mm |
| 1981 | 3°C (37°F) | -6°C (21°F) | 0 mm |
| 1980 | 10°C (50°F) | 4°C (39°F) | 0 mm |
| 1979 | 19°C (67°F) | 5°C (41°F) | 1 mm |
| 1978 | 8°C (46°F) | 2°C (36°F) | 3 mm |
| 1977 | 26°C (78°F) | 14°C (58°F) | 10 mm |
| 1976 | 22°C (71°F) | 7°C (44°F) | 3 mm |
| 1975 | 5°C (41°F) | -4°C (25°F) | 0 mm |
| 1974 | 21°C (69°F) | 6°C (43°F) | 2 mm |
| 1973 | 23°C (73°F) | 6°C (43°F) | 13 mm |
| 1972 | 10°C (50°F) | 1°C (34°F) | 0 mm |
| 1971 | 5°C (41°F) | 3°C (38°F) | 26 mm |