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Weather & Climate in Lac-Mégantic, QC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Lac-Mégantic has a cool climate with an average annual temperature of 43°F (6°C). Winters average 22°F in January while summers reach 67°F in July. The area gets 221 sunny days per year, above the national average. Annual precipitation totals 52.0 inches (wetter than the 38-inch national average). The area receives 87.9 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 1,306 feet.
Temperature
22°F Jan (-6°C)
67°F Jul (20°C)
| Annual Average | 42.7°F |
| 21% below US avg | |
| January Average | 22°F (-6°C) |
| July Average | 67°F (20°C) |
| Sunny Days | 221 days/yr |
Geography
| Elevation | 1,306 ft (398 m) |
| Area | 8.5 sq mi (22.0 km²) |
| Population Density | 677/sq mi |
| Coordinates | 45.5834°N, 70.8823°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
29 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 | 141 km | 23 km |
| Jan 17, 2000 | 4 km NNE of Dixfield, Maine | M3.6 | 118 km | 16 km |
| Jul 23, 2010 | 18 km S of Saint-Antoine-de-Tilly, Canada | M3.5 | 117 km | 18 km |
| Apr 3, 1997 | 9 km ENE of Saint-Cyrille-de-Wendover, Canada | M3.5 | 121 km | 5 km |
| Aug 27, 2011 | 24 km SSW of Montmagny, Canada | M3.5 | 134 km | 18 km |
| Jan 4, 2018 | 18 km SSE of Beaupré, Canada | M3.4 | 147 km | 18 km |
| Apr 29, 2009 | 7 km SSE of L'Ange-Gardien, Canada | M3.4 | 142 km | 18 km |
| Dec 25, 1999 | 4 km NE of Saint Albans, Maine | M3.0 | 138 km | 5 km |
| Apr 15, 2010 | 7 km WNW of Valcourt, Canada | M3.0 | 119 km | 18 km |
| Nov 6, 1997 | 4 km SSW of L'Ancienne-Lorette, Canada | M2.9 | 136 km | 18 km |
| Jan 3, 2018 | 18 km SSE of Beaupré, Canada | M2.9 | 147 km | 18 km |
| Nov 9, 2009 | southern Quebec, Canada | M2.9 | 119 km | 18 km |
| Nov 8, 1997 | 2 km SW of L'Ancienne-Lorette, Canada | M2.9 | 138 km | 23 km |
| Feb 4, 2022 | 0 km SSW of Gorham, New Hampshire | M2.9 | 135 km | 8 km |
| Nov 6, 1997 | St. Lawrence Valley region, Quebec, Canada | M2.8 | 139 km | 18 km |
| Apr 21, 2010 | 7 km WNW of Valcourt, Canada | M2.7 | 118 km | 18 km |
| Apr 15, 2010 | 9 km W of Valcourt, Canada | M2.7 | 121 km | 18 km |
| Aug 9, 2021 | 12 km E of Bécancour, Canada | M2.7 | 138 km | 20 km |
| Mar 29, 2017 | 3 km NNE of Bécancour, Canada | M2.7 | 147 km | 18 km |
| Aug 13, 2016 | southern Quebec, Canada | M2.7 | 136 km | 1 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-6°C) | 3.5 in | |
| February | 12°F (-11°C) | 3.0 in | Coldest, Driest |
| March | 23°F (-5°C) | 3.4 in | |
| April | 36°F (2°C) | 3.2 in | |
| May | 50°F (10°C) | 4.0 in | |
| June | 59°F (15°C) | 4.8 in | |
| July | 67°F (20°C) | 4.5 in | Warmest |
| August | 62°F (17°C) | 5.2 in | Wettest |
| September | 54°F (12°C) | 4.1 in | |
| October | 43°F (6°C) | 3.9 in | |
| November | 31°F (-0°C) | 4.1 in | |
| December | 17°F (-8°C) | 3.8 in |
Lac-Mégantic has a seasonal temperature swing of 55°F / from 12°F in February to 67°F in July. Total annual precipitation is 47.4 inches, with August being the wettest month (5.2") and February the driest (3.0").