All Countries
Weather & Climate in Saint-Guillaume, QC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Saint-Guillaume 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 263 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 40.5 inches. The area receives 14.2 inches of snow annually. The city sits at an elevation of 144 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 | 263 days/yr |
Geography
| Elevation | 144 ft (44 m) |
| Area | 33.9 sq mi (87.9 km²) |
| Population Density | 44/sq mi |
| Coordinates | 45.8852°N, 72.7645°W |
| Timezone | America/Montreal |
Precipitation & Snow
Air Quality
Earthquake History
79 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Nov 6, 1997 | 4 km W of L'Ancienne-Lorette, Canada | M4.8 | 146 km | 23 km |
| Mar 14, 1996 | 7 km WNW of Saint-Adolphe-d'Howard, Canada | M4.5 | 129 km | 18 km |
| May 17, 1991 | 7 km WNW of Rigaud, Canada | M4.4 | 134 km | 18 km |
| Oct 31, 1999 | 7 km SW of Morin-Heights, Canada | M4.2 | 121 km | 18 km |
| May 24, 1997 | 6 km W of Saint-Adolphe-d'Howard, Canada | M4.2 | 129 km | 10 km |
| Oct 10, 2012 | 7 km ESE of Verchères, Canada | M3.9 | 42 km | 9 km |
| Jul 30, 1993 | 1 km NE of Salaberry-de-Valleyfield, Canada | M3.9 | 126 km | 8 km |
| Mar 16, 2011 | 6 km ENE of Hawkesbury, Canada | M3.9 | 141 km | 10 km |
| Sep 1, 2024 | 5 km SE of Pierreville, Canada | M3.8 | 18 km | 1 km |
| Oct 6, 2000 | 1 km WSW of Ormstown, Canada | M3.8 | 129 km | 18 km |
| Nov 16, 1993 | 5 km SSE of Saint-Édouard, Canada | M3.8 | 97 km | 17 km |
| Sep 23, 1993 | 11 km SE of La Conception, Canada | M3.8 | 144 km | 18 km |
| Jul 5, 1991 | 7 km WSW of Sainte-Martine, Canada | M3.8 | 114 km | 18 km |
| Feb 11, 2002 | 2 km WNW of Notre-Dame-des-Prairies, Canada | M3.8 | 57 km | 10 km |
| Nov 6, 2012 | Ontario-Quebec border region, Canada | M3.7 | 146 km | 11 km |
| Jan 9, 2006 | 2 km ESE of Franklin, Canada | M3.7 | 129 km | 13 km |
| Sep 12, 1995 | 8 km S of Brownsburg-Chatham, Canada | M3.7 | 133 km | 18 km |
| Jul 23, 2010 | 18 km S of Saint-Antoine-de-Tilly, Canada | M3.5 | 112 km | 18 km |
| Apr 3, 1997 | 9 km ENE of Saint-Cyrille-de-Wendover, Canada | M3.5 | 35 km | 5 km |
| Feb 28, 2010 | 5 km NNW of Brownsburg-Chatham, Canada | M3.4 | 132 km | 7 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 11°F (-12°C) | 2.8 in | Coldest |
| February | 13°F (-11°C) | 2.2 in | Driest |
| March | 24°F (-4°C) | 2.4 in | |
| April | 40°F (4°C) | 3.1 in | |
| May | 54°F (12°C) | 3.6 in | |
| June | 63°F (17°C) | 3.9 in | |
| July | 68°F (20°C) | 3.9 in | Warmest |
| August | 67°F (19°C) | 4.2 in | Wettest |
| September | 58°F (14°C) | 3.7 in | |
| October | 46°F (8°C) | 3.9 in | |
| November | 35°F (2°C) | 3.9 in | |
| December | 20°F (-7°C) | 2.9 in |
Saint-Guillaume has a seasonal temperature swing of 57°F / from 11°F in January to 68°F in July. Total annual precipitation is 40.5 inches, with August being the wettest month (4.2") and February the driest (2.2").