Weather & Climate in Lanark Highlands, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Lanark Highlands has a cool climate with an average annual temperature of 42°F (5°C). Winters average 12°F in January while summers reach 68°F in July. Annual precipitation totals 34.1 inches. The area receives 12.6 inches of snow annually. The city sits at an elevation of 591 feet.
Temperature
12°F Jan (-11°C)
68°F Jul (20°C)
| Annual Average | 41.6°F |
| 23% below US avg | |
| January Average | 12°F (-11°C) |
| July Average | 68°F (20°C) |
Geography
| Elevation | 591 ft (180 m) |
| Area | 398.3 sq mi (1,031.5 km²) |
| Population Density | 15/sq mi |
| Coordinates | 45.0876°N, 76.4856°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
89 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 | 119 km | 19 km |
| May 17, 2013 | 20 km NNE of Shawville, Canada | M5.1 | 75 km | 13 km |
| Apr 18, 1998 | 4 km N of Plantagenet, Canada | M4.1 | 129 km | 18 km |
| Nov 17, 1992 | 16 km ENE of Saint-André-Avellin, Canada | M4.0 | 147 km | 18 km |
| Feb 25, 2006 | 4 km NE of Thurso, Canada | M4.0 | 117 km | 11 km |
| Mar 6, 1991 | 49 km NNW of Fort-Coulonge, Canada | M3.9 | 136 km | 18 km |
| Sep 18, 2011 | 1 km E of Thurso, Canada | M3.8 | 113 km | 5 km |
| Feb 26, 1998 | 33 km SW of Saint-Raphaël, Canada | M3.7 | 110 km | 18 km |
| May 17, 2013 | 20 km NNE of Shawville, Canada | M3.6 | 75 km | 11 km |
| Apr 23, 2023 | New York | M3.6 | 141 km | 9 km |
| Oct 20, 2013 | 34 km SSW of Petawawa, Canada | M3.6 | 95 km | 18 km |
| Feb 15, 1995 | 13 km SSE of Notre-Dame-du-Mont-Carmel, Canada | M3.5 | 144 km | 18 km |
| Jan 16, 2013 | 28 km W of Notre-Dame-du-Mont-Carmel, Canada | M3.5 | 135 km | 18 km |
| May 14, 2016 | 8 km NW of Petawawa, Canada | M3.5 | 118 km | 18 km |
| May 28, 2002 | 11 km WNW of Shawville, Canada | M3.4 | 61 km | 18 km |
| Mar 31, 2005 | 27 km ESE of Maniwaki, Canada | M3.4 | 148 km | 18 km |
| Jun 23, 2010 | 28 km NNE of Val-des-Monts, Canada | M3.3 | 118 km | 23 km |
| Jun 11, 2008 | 6 km NNE of Buckingham, Canada | M3.3 | 106 km | 18 km |
| Jul 4, 2005 | 45 km NNW of Fort-Coulonge, Canada | M3.3 | 132 km | 13 km |
| Jun 24, 2010 | 27 km NNE of Val-des-Monts, Canada | M3.2 | 115 km | 17 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 | 103 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 12°F (-11°C) | 2.6 in | Coldest |
| February | 15°F (-10°C) | 2.0 in | Driest |
| March | 26°F (-4°C) | 2.3 in | |
| April | 40°F (4°C) | 2.6 in | |
| May | 53°F (12°C) | 3.0 in | |
| June | 62°F (17°C) | 3.3 in | |
| July | 68°F (20°C) | 3.2 in | Warmest |
| August | 66°F (19°C) | 3.0 in | |
| September | 58°F (14°C) | 3.5 in | Wettest |
| October | 46°F (8°C) | 3.0 in | |
| November | 35°F (1°C) | 3.2 in | |
| December | 20°F (-7°C) | 2.6 in |
Lanark Highlands has a seasonal temperature swing of 55°F / from 12°F in January to 68°F in July. Total annual precipitation is 34.1 inches, with September being the wettest month (3.5") and February the driest (2.0").