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Weather & Climate in Lac-Sainte-Marie, QC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Lac-Sainte-Marie has a cool climate with an average annual temperature of 40°F (4°C). Winters average 8°F in January while summers reach 66°F in July. The area gets 264 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 39.7 inches. The area receives 14.6 inches of snow annually. The city sits at an elevation of 512 feet.
Temperature
8°F Jan (-13°C)
66°F Jul (19°C)
| Annual Average | 39.5°F |
| 27% below US avg | |
| January Average | 8°F (-13°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 264 days/yr |
Geography
| Elevation | 512 ft (156 m) |
| Area | 79.4 sq mi (205.7 km²) |
| Population Density | 9/sq mi |
| Coordinates | 45.9519°N, 75.9461°W |
| Timezone | America/Montreal |
Precipitation & Snow
Air Quality
Earthquake History
162 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 | 37 km | 19 km |
| May 17, 2013 | 20 km NNE of Shawville, Canada | M5.1 | 38 km | 13 km |
| Oct 19, 1990 | 11 km SW of Mont-Laurier, Canada | M4.6 | 64 km | 13 km |
| Mar 14, 1996 | 7 km WNW of Saint-Adolphe-d'Howard, Canada | M4.5 | 117 km | 18 km |
| Jun 16, 1991 | 78 km NW of Saint-Boniface, Canada | M4.5 | 130 km | 18 km |
| May 17, 1991 | 7 km WNW of Rigaud, Canada | M4.4 | 130 km | 18 km |
| Dec 25, 1993 | 9 km WSW of Mont-Laurier, Canada | M4.3 | 67 km | 18 km |
| Oct 31, 1999 | 7 km SW of Morin-Heights, Canada | M4.2 | 126 km | 18 km |
| May 24, 1997 | 6 km W of Saint-Adolphe-d'Howard, Canada | M4.2 | 118 km | 10 km |
| Oct 12, 2003 | 63 km NNW of Saint-Boniface, Canada | M4.2 | 122 km | 18 km |
| Apr 18, 1998 | 4 km N of Plantagenet, Canada | M4.1 | 86 km | 18 km |
| Nov 15, 1990 | 72 km NNW of Saint-Boniface, Canada | M4.1 | 132 km | 18 km |
| Nov 17, 1992 | 16 km ENE of Saint-André-Avellin, Canada | M4.0 | 87 km | 18 km |
| Aug 6, 2000 | 7 km SSW of La Minerve, Canada | M4.0 | 80 km | 18 km |
| Feb 25, 2006 | 4 km NE of Thurso, Canada | M4.0 | 68 km | 11 km |
| Mar 19, 2001 | 65 km NNW of Saint-Boniface, Canada | M3.9 | 125 km | 18 km |
| Oct 7, 1990 | 21 km WNW of La Minerve, Canada | M3.9 | 71 km | 18 km |
| Mar 6, 1991 | 49 km NNW of Fort-Coulonge, Canada | M3.9 | 80 km | 18 km |
| Mar 16, 2011 | 6 km ENE of Hawkesbury, Canada | M3.9 | 116 km | 10 km |
| Sep 18, 2011 | 1 km E of Thurso, Canada | M3.8 | 68 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 15.0 m (49 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1908 | NOTRE DAME DE LA SALETTE | Meteorological | 15.0 m | 33 | 34 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 8°F (-13°C) | 2.7 in | Coldest |
| February | 11°F (-12°C) | 2.6 in | Driest |
| March | 23°F (-5°C) | 2.8 in | |
| April | 38°F (3°C) | 3.0 in | |
| May | 52°F (11°C) | 3.5 in | |
| June | 61°F (16°C) | 3.7 in | |
| July | 66°F (19°C) | 3.7 in | Warmest |
| August | 65°F (18°C) | 4.0 in | Wettest |
| September | 56°F (14°C) | 3.5 in | |
| October | 45°F (7°C) | 3.6 in | |
| November | 33°F (0°C) | 3.4 in | |
| December | 17°F (-8°C) | 3.2 in |
Lac-Sainte-Marie has a seasonal temperature swing of 58°F / from 8°F in January to 66°F in July. Total annual precipitation is 39.7 inches, with August being the wettest month (4.0") and February the driest (2.6").