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Weather & Climate in Lac-Supérieur, QC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Lac-Supérieur has a cool climate with an average annual temperature of 37°F (3°C). Winters average 6°F in January while summers reach 63°F in July. The area gets 256 sunny days per year, above the national average. Annual precipitation totals 44.3 inches. The area receives 18.8 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 1,483 feet.
Temperature
6°F Jan (-14°C)
63°F Jul (17°C)
| Annual Average | 36.6°F |
| 32% below US avg | |
| January Average | 6°F (-14°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 256 days/yr |
Geography
| Elevation | 1,483 ft (452 m) |
| Area | 141.3 sq mi (366.0 km²) |
| Population Density | 14/sq mi |
| Coordinates | 46.2921°N, 74.4902°W |
| Timezone | America/Montreal |
Precipitation & Snow
Air Quality
Earthquake History
161 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 | 89 km | 19 km |
| Oct 19, 1990 | 11 km SW of Mont-Laurier, Canada | M4.6 | 87 km | 13 km |
| Mar 14, 1996 | 7 km WNW of Saint-Adolphe-d'Howard, Canada | M4.5 | 34 km | 18 km |
| May 17, 1991 | 7 km WNW of Rigaud, Canada | M4.4 | 88 km | 18 km |
| Dec 25, 1993 | 9 km WSW of Mont-Laurier, Canada | M4.3 | 89 km | 18 km |
| May 24, 1997 | 6 km W of Saint-Adolphe-d'Howard, Canada | M4.2 | 35 km | 10 km |
| Oct 31, 1999 | 7 km SW of Morin-Heights, Canada | M4.2 | 51 km | 18 km |
| Apr 18, 1998 | 4 km N of Plantagenet, Canada | M4.1 | 89 km | 18 km |
| Nov 17, 1992 | 16 km ENE of Saint-André-Avellin, Canada | M4.0 | 65 km | 18 km |
| Aug 6, 2000 | 7 km SSW of La Minerve, Canada | M4.0 | 39 km | 18 km |
| Feb 25, 2006 | 4 km NE of Thurso, Canada | M4.0 | 92 km | 11 km |
| Oct 10, 2012 | 7 km ESE of Verchères, Canada | M3.9 | 112 km | 9 km |
| Jul 30, 1993 | 1 km NE of Salaberry-de-Valleyfield, Canada | M3.9 | 118 km | 8 km |
| Oct 7, 1990 | 21 km WNW of La Minerve, Canada | M3.9 | 54 km | 18 km |
| Mar 16, 2011 | 6 km ENE of Hawkesbury, Canada | M3.9 | 75 km | 10 km |
| Sep 18, 2011 | 1 km E of Thurso, Canada | M3.8 | 96 km | 5 km |
| Oct 6, 2000 | 1 km WSW of Ormstown, Canada | M3.8 | 134 km | 18 km |
| Jul 30, 1998 | 0 km ENE of Lac-Simon, Canada | M3.8 | 24 km | 10 km |
| Sep 23, 1993 | 11 km SE of La Conception, Canada | M3.8 | 27 km | 18 km |
| Jul 5, 1991 | 7 km WSW of Sainte-Martine, Canada | M3.8 | 127 km | 18 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 | 104 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 6°F (-14°C) | 3.0 in | Coldest |
| February | 9°F (-13°C) | 2.7 in | |
| March | 20°F (-6°C) | 2.6 in | Driest |
| April | 35°F (1°C) | 2.9 in | |
| May | 49°F (10°C) | 4.0 in | |
| June | 58°F (15°C) | 4.5 in | Wettest |
| July | 63°F (17°C) | 4.3 in | Warmest |
| August | 61°F (16°C) | 4.5 in | |
| September | 53°F (12°C) | 4.2 in | |
| October | 41°F (5°C) | 4.1 in | |
| November | 29°F (-2°C) | 3.9 in | |
| December | 14°F (-10°C) | 3.5 in |
Lac-Supérieur has a seasonal temperature swing of 57°F / from 6°F in January to 63°F in July. Total annual precipitation is 44.3 inches, with June being the wettest month (4.5") and March the driest (2.6").