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Weather & Climate in Grenville, QC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grenville has a cool climate with an average annual temperature of 42°F (5°C). Winters average 11°F in January while summers reach 68°F in July. The area gets 262 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 41.1 inches. The area receives 14.7 inches of snow annually. The city sits at an elevation of 161 feet.
Temperature
11°F Jan (-12°C)
68°F Jul (20°C)
| Annual Average | 41.5°F |
| 23% below US avg | |
| January Average | 11°F (-12°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 262 days/yr |
Geography
| Elevation | 161 ft (49 m) |
| Area | 1.1 sq mi (2.8 km²) |
| Population Density | 1,670/sq mi |
| Coordinates | 45.6240°N, 74.5994°W |
| Timezone | America/Montreal |
Precipitation & Snow
Air Quality
Earthquake History
188 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 | 74 km | 19 km |
| Apr 20, 2002 | 8 km NNW of Au Sable Forks, New York | M5.3 | 143 km | 5 km |
| May 17, 2013 | 20 km NNE of Shawville, Canada | M5.1 | 137 km | 13 km |
| Oct 19, 1990 | 11 km SW of Mont-Laurier, Canada | M4.6 | 121 km | 13 km |
| Mar 14, 1996 | 7 km WNW of Saint-Adolphe-d'Howard, Canada | M4.5 | 43 km | 18 km |
| May 17, 1991 | 7 km WNW of Rigaud, Canada | M4.4 | 21 km | 18 km |
| Dec 25, 1993 | 9 km WSW of Mont-Laurier, Canada | M4.3 | 125 km | 18 km |
| May 24, 1997 | 6 km W of Saint-Adolphe-d'Howard, Canada | M4.2 | 42 km | 10 km |
| Oct 31, 1999 | 7 km SW of Morin-Heights, Canada | M4.2 | 33 km | 18 km |
| Apr 18, 1998 | 4 km N of Plantagenet, Canada | M4.1 | 31 km | 18 km |
| Aug 6, 2000 | 7 km SSW of La Minerve, Canada | M4.0 | 69 km | 18 km |
| Nov 17, 1992 | 16 km ENE of Saint-André-Avellin, Canada | M4.0 | 26 km | 18 km |
| Feb 25, 2006 | 4 km NE of Thurso, Canada | M4.0 | 47 km | 11 km |
| Oct 10, 2012 | 7 km ESE of Verchères, Canada | M3.9 | 104 km | 9 km |
| Oct 7, 1990 | 21 km WNW of La Minerve, Canada | M3.9 | 90 km | 18 km |
| Jul 30, 1993 | 1 km NE of Salaberry-de-Valleyfield, Canada | M3.9 | 55 km | 8 km |
| Mar 16, 2011 | 6 km ENE of Hawkesbury, Canada | M3.9 | 5 km | 10 km |
| Sep 18, 2011 | 1 km E of Thurso, Canada | M3.8 | 50 km | 5 km |
| Sep 23, 1993 | 11 km SE of La Conception, Canada | M3.8 | 49 km | 18 km |
| Oct 6, 2000 | 1 km WSW of Ormstown, Canada | M3.8 | 71 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 | 79 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 11°F (-12°C) | 2.9 in | Coldest |
| February | 14°F (-10°C) | 2.4 in | Driest |
| March | 25°F (-4°C) | 2.4 in | |
| April | 40°F (4°C) | 3.2 in | |
| May | 54°F (12°C) | 3.4 in | |
| June | 63°F (17°C) | 4.2 in | Wettest |
| July | 68°F (20°C) | 3.8 in | Warmest |
| August | 67°F (19°C) | 3.9 in | |
| September | 58°F (14°C) | 4.0 in | |
| October | 46°F (8°C) | 3.9 in | |
| November | 35°F (1°C) | 3.9 in | |
| December | 19°F (-7°C) | 3.0 in |
Grenville has a seasonal temperature swing of 58°F / from 11°F in January to 68°F in July. Total annual precipitation is 41.1 inches, with June being the wettest month (4.2") and February the driest (2.4").