Weather on May 18 in Montreal
Historical weather data for May 18 in Montreal, Canada
Based on 50 years of data from MONTREAL MCGILL
About This Date
May 18th in Montreal, Canada typically brings mild spring weather, with average highs around 19°C and lows near 9°C. Over 50 years of records, the warmest May 18th was in 2017 (25°C average), while the coldest was 2002 (6°C) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 32% of May 18th dates historically, with the wettest May 18th recording 3.26" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 18th in Montreal? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 18°C (64°F) | 11°C (51°F) | -- |
| 2023 | 15°C (59°F) | 1°C (34°F) | 0" |
| 2022 | 17°C (63°F) | 7°C (44°F) | 0" |
| 2021 | 26°C (78°F) | 16°C (60°F) | 0" |
| 2020 | 18°C (65°F) | 9°C (48°F) | 0" |
| 2019 | 15°C (59°F) | 8°C (47°F) | 0" |
| 2018 | 17°C (62°F) | 6°C (43°F) | 0" |
| 2017 | 31°C (87°F) | 19°C (67°F) | 0.08" |
| 2016 | 18°C (64°F) | 6°C (42°F) | 0" |
| 2015 | 29°C (84°F) | 13°C (55°F) | 3.18" |
| 2014 | 17°C (62°F) | 7°C (45°F) | 0" |
| 2013 | 22°C (72°F) | 9°C (48°F) | 0" |
| 2012 | 21°C (70°F) | 9°C (49°F) | 0" |
| 2011 | 17°C (63°F) | 8°C (47°F) | 0" |
| 2010 | 26°C (79°F) | 12°C (54°F) | 0" |
| 2009 | 13°C (56°F) | 4°C (40°F) | 0" |
| 2008 | 17°C (63°F) | 8°C (46°F) | 0.58" |
| 2007 | 13°C (56°F) | 5°C (41°F) | 0" |
| 2006 | 16°C (60°F) | 9°C (48°F) | 0.44" |
| 2005 | 14°C (57°F) | 9°C (48°F) | 0" |
| 2004 | 21°C (69°F) | 12°C (53°F) | 1.1" |
| 2003 | 24°C (76°F) | 11°C (51°F) | 0.1" |
| 2002 | 8°C (47°F) | 4°C (40°F) | 0" |
| 2001 | 18°C (64°F) | 13°C (55°F) | 1.2" |
| 2000 | 14°C (58°F) | 5°C (41°F) | 3.26" |
| 1999 | 27°C (81°F) | 15°C (59°F) | 0.1" |
| 1998 | 24°C (76°F) | 13°C (56°F) | 0" |
| 1997 | 16°C (61°F) | 7°C (44°F) | 0" |
| 1992 | 18°C (64°F) | 13°C (55°F) | 0" |
| 1991 | 15°C (59°F) | 4°C (40°F) | 0" |
| 1990 | 15°C (59°F) | 10°C (50°F) | 0.2" |
| 1989 | 30°C (86°F) | 17°C (63°F) | 0" |
| 1988 | 16°C (61°F) | 9°C (48°F) | 0.02" |
| 1987 | 14°C (58°F) | 9°C (48°F) | 0" |
| 1986 | 29°C (84°F) | 16°C (61°F) | 0.14" |
| 1985 | 15°C (59°F) | 8°C (47°F) | 0" |
| 1984 | 18°C (64°F) | 7°C (45°F) | 0" |
| 1983 | 16°C (61°F) | 5°C (41°F) | 0" |
| 1982 | 23°C (73°F) | 11°C (51°F) | 0" |
| 1981 | 11°C (52°F) | 3°C (37°F) | 0" |
| 1980 | 15°C (59°F) | 11°C (52°F) | 3.08" |
| 1979 | 24°C (75°F) | 11°C (52°F) | 0" |
| 1978 | 20°C (68°F) | 13°C (56°F) | 0" |
| 1977 | 24°C (75°F) | 15°C (59°F) | 0" |
| 1976 | 9°C (48°F) | 7°C (44°F) | 1.3" |
| 1975 | 27°C (80°F) | 14°C (57°F) | 0" |
| 1974 | 18°C (64°F) | 9°C (48°F) | 0" |
| 1973 | 13°C (55°F) | 6°C (43°F) | 1.22" |
| 1972 | 25°C (77°F) | 14°C (57°F) | 0.03" |
| 1971 | 25°C (77°F) | 12°C (53°F) | 0" |