Weather & Climate in Montréal-Ouest, QC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Montréal-Ouest has a cool climate with an average annual temperature of 44°F (7°C). Winters average 14°F in January while summers reach 70°F in July. Annual precipitation totals 38.6 inches. The area receives 11.1 inches of snow annually. The city sits at an elevation of 167 feet.
Temperature
14°F Jan (-10°C)
70°F Jul (21°C)
| Annual Average | 43.8°F |
| 19% below US avg | |
| January Average | 14°F (-10°C) |
| July Average | 70°F (21°C) |
Geography
| Elevation | 167 ft (51 m) |
| Area | 0.5 sq mi (1.4 km²) |
| Population Density | 9,681/sq mi |
| Coordinates | 45.4529°N, 73.6492°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
138 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.4.
| Jun 23, 2010 | 29 km NNE of Val-des-Monts, Canada | M5.4 | 150 km | 19 km |
| Apr 20, 2002 | 8 km NNW of Au Sable Forks, New York | M5.3 | 105 km | 5 km |
| Mar 14, 1996 | 7 km WNW of Saint-Adolphe-d'Howard, Canada | M4.5 | 85 km | 18 km |
| May 17, 1991 | 7 km WNW of Rigaud, Canada | M4.4 | 59 km | 18 km |
| Oct 31, 1999 | 7 km SW of Morin-Heights, Canada | M4.2 | 68 km | 18 km |
| May 24, 1997 | 6 km W of Saint-Adolphe-d'Howard, Canada | M4.2 | 84 km | 10 km |
| Apr 18, 1998 | 4 km N of Plantagenet, Canada | M4.1 | 105 km | 18 km |
| Nov 17, 1992 | 16 km ENE of Saint-André-Avellin, Canada | M4.0 | 101 km | 18 km |
| Aug 6, 2000 | 7 km SSW of La Minerve, Canada | M4.0 | 131 km | 18 km |
| Feb 25, 2006 | 4 km NE of Thurso, Canada | M4.0 | 122 km | 11 km |
| Oct 10, 2012 | 7 km ESE of Verchères, Canada | M3.9 | 45 km | 9 km |
| Jul 30, 1993 | 1 km NE of Salaberry-de-Valleyfield, Canada | M3.9 | 43 km | 8 km |
| Mar 16, 2011 | 6 km ENE of Hawkesbury, Canada | M3.9 | 72 km | 10 km |
| Sep 18, 2011 | 1 km E of Thurso, Canada | M3.8 | 125 km | 5 km |
| Sep 23, 1993 | 11 km SE of La Conception, Canada | M3.8 | 101 km | 18 km |
| Jul 30, 1998 | 0 km ENE of Lac-Simon, Canada | M3.8 | 115 km | 10 km |
| Oct 6, 2000 | 1 km WSW of Ormstown, Canada | M3.8 | 46 km | 18 km |
| Nov 16, 1993 | 5 km SSE of Saint-Édouard, Canada | M3.8 | 32 km | 17 km |
| Feb 11, 2002 | 2 km WNW of Notre-Dame-des-Prairies, Canada | M3.8 | 69 km | 10 km |
| Jul 5, 1991 | 7 km WSW of Sainte-Martine, Canada | M3.8 | 31 km | 18 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Wildfire History
1 wildfire (100+ acres) recorded within 100 km. Largest: FLAT ROCK FIRE (658 acres, 2018).
| Year | Name | Acres Burned | Distance |
| 2018 | FLAT ROCK FIRE | 658 | 65 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 14°F (-10°C) | 2.8 in | Coldest |
| February | 17°F (-8°C) | 2.3 in | Driest |
| March | 28°F (-2°C) | 2.7 in | |
| April | 42°F (6°C) | 3.0 in | |
| May | 56°F (13°C) | 3.2 in | |
| June | 65°F (18°C) | 3.4 in | |
| July | 70°F (21°C) | 3.7 in | Warmest |
| August | 68°F (20°C) | 3.7 in | Wettest |
| September | 60°F (15°C) | 3.7 in | |
| October | 48°F (9°C) | 3.2 in | |
| November | 36°F (2°C) | 3.6 in | |
| December | 22°F (-6°C) | 3.3 in |
Montréal-Ouest has a seasonal temperature swing of 56°F / from 14°F in January to 70°F in July. Total annual precipitation is 38.6 inches, with August being the wettest month (3.7") and February the driest (2.3").