Weather & Climate in L'Islet, QC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
L'Islet has a cool climate with an average annual temperature of 40°F (4°C). Winters average 11°F in January while summers reach 66°F in July. Annual precipitation totals 41.4 inches. The area receives 14.5 inches of snow annually. The city sits at an elevation of 115 feet.
Temperature
11°F Jan (-12°C)
66°F Jul (19°C)
| Annual Average | 39.6°F |
| 27% below US avg | |
| January Average | 11°F (-12°C) |
| July Average | 66°F (19°C) |
Geography
| Elevation | 115 ft (35 m) |
| Area | 46.3 sq mi (119.9 km²) |
| Population Density | 82/sq mi |
| Coordinates | 47.1031°N, 70.3502°W |
| Timezone | America/Montreal |
Precipitation & Snow
Air Quality
Earthquake History
92 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Mar 6, 2005 | 15 km SE of Saint-Siméon, Canada | M4.9 | 86 km | 13 km |
| Oct 28, 1997 | 18 km E of La Malbaie, Canada | M4.8 | 71 km | 12 km |
| Nov 6, 1997 | 4 km W of L'Ancienne-Lorette, Canada | M4.8 | 87 km | 23 km |
| Dec 12, 2012 | 14 km WSW of Saint-Siméon, Canada | M4.4 | 79 km | 5 km |
| Jul 11, 2013 | 13 km WSW of Saint-Siméon, Canada | M4.4 | 82 km | 15 km |
| Jul 12, 2000 | 46 km W of Baie-Saint-Paul, Canada | M4.2 | 73 km | 10 km |
| Sep 25, 1994 | 10 km SW of Saint-Siméon, Canada | M4.1 | 80 km | 17 km |
| Jun 13, 2003 | 6 km NE of La Malbaie, Canada | M4.1 | 69 km | 11 km |
| Feb 24, 2012 | 6 km SW of La Malbaie, Canada | M4.0 | 58 km | 1 km |
| Jul 14, 2006 | 13 km SW of Winterville, Maine | M3.9 | 129 km | 14 km |
| Jun 16, 2011 | 11 km ENE of Sacré-Coeur, Canada | M3.8 | 140 km | 23 km |
| Dec 30, 1993 | 10 km E of Baie-Saint-Paul, Canada | M3.8 | 39 km | 7 km |
| Aug 4, 2012 | 24 km SSW of Baie-Saint-Paul, Canada | M3.8 | 24 km | 18 km |
| Aug 17, 2002 | 12 km S of Baie-Saint-Paul, Canada | M3.8 | 28 km | 13 km |
| Jan 21, 2015 | 13 km W of La Pocatière, Canada | M3.7 | 31 km | 15 km |
| Apr 7, 2006 | 16 km S of Baie-Saint-Paul, Canada | M3.7 | 23 km | 0 km |
| Aug 20, 1997 | 17 km SW of La Malbaie, Canada | M3.7 | 48 km | 18 km |
| Jun 15, 2000 | 16 km N of Saint-Pascal, Canada | M3.7 | 75 km | 11 km |
| Dec 8, 1991 | 17 km SSE of Saint-Siméon, Canada | M3.6 | 78 km | 18 km |
| Jul 23, 2010 | 18 km S of Saint-Antoine-de-Tilly, Canada | M3.5 | 118 km | 18 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 11°F (-12°C) | 2.9 in | Coldest |
| February | 13°F (-10°C) | 2.4 in | Driest |
| March | 23°F (-5°C) | 2.7 in | |
| April | 37°F (3°C) | 3.0 in | |
| May | 50°F (10°C) | 3.9 in | |
| June | 60°F (16°C) | 3.9 in | |
| July | 66°F (19°C) | 4.3 in | Warmest |
| August | 64°F (18°C) | 4.4 in | Wettest |
| September | 55°F (13°C) | 3.7 in | |
| October | 44°F (7°C) | 3.8 in | |
| November | 33°F (0°C) | 3.5 in | |
| December | 18°F (-8°C) | 3.1 in |
L'Islet has a seasonal temperature swing of 55°F / from 11°F in January to 66°F in July. Total annual precipitation is 41.4 inches, with August being the wettest month (4.4") and February the driest (2.4").