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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. The area gets 266 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. 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) |
| Sunny Days | 266 days/yr |
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").