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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. The area gets 261 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 41.4 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) |
| Sunny Days | 261 days/yr |
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").