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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. The area gets 274 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 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) |
| Sunny Days | 274 days/yr |
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").