Weather & Climate in Rideau Lakes, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rideau Lakes has a cool climate with an average annual temperature of 43°F (6°C). Winters average 15°F in January while summers reach 68°F in July. Annual precipitation totals 36.5 inches. The area receives 10.3 inches of snow annually. The city sits at an elevation of 463 feet.
Temperature
15°F Jan (-10°C)
68°F Jul (20°C)
| Annual Average | 43.1°F |
| 20% below US avg | |
| January Average | 15°F (-10°C) |
| July Average | 68°F (20°C) |
Geography
| Elevation | 463 ft (141 m) |
| Area | 274.8 sq mi (711.8 km²) |
| Population Density | 40/sq mi |
| Coordinates | 44.6957°N, 76.2571°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
80 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 | 146 km | 19 km |
| May 17, 2013 | 20 km NNE of Shawville, Canada | M5.1 | 118 km | 13 km |
| Apr 18, 1998 | 4 km N of Plantagenet, Canada | M4.1 | 139 km | 18 km |
| Feb 25, 2006 | 4 km NE of Thurso, Canada | M4.0 | 133 km | 11 km |
| Sep 18, 2011 | 1 km E of Thurso, Canada | M3.8 | 129 km | 5 km |
| May 17, 2013 | 20 km NNE of Shawville, Canada | M3.6 | 118 km | 11 km |
| Oct 20, 2013 | 34 km SSW of Petawawa, Canada | M3.6 | 138 km | 18 km |
| Apr 23, 2023 | New York | M3.6 | 94 km | 9 km |
| May 28, 2002 | 11 km WNW of Shawville, Canada | M3.4 | 108 km | 18 km |
| Jun 23, 2010 | 28 km NNE of Val-des-Monts, Canada | M3.3 | 144 km | 23 km |
| Jun 29, 2024 | 14 km W of Ellisburg, New York | M3.3 | 108 km | 5 km |
| Jun 11, 2008 | 6 km NNE of Buckingham, Canada | M3.3 | 125 km | 18 km |
| Jun 24, 2010 | 27 km NNE of Val-des-Monts, Canada | M3.2 | 143 km | 17 km |
| Jul 31, 1997 | 0 km WSW of Lyons Falls, New York | M3.2 | 139 km | 5 km |
| Aug 24, 2011 | 13 km ENE of Saint Regis Falls, New York | M3.2 | 148 km | 5 km |
| Sep 9, 2015 | 20 km NNE of Shawville, Canada | M3.2 | 120 km | 10 km |
| Jun 23, 2010 | 29 km NNE of Val-des-Monts, Canada | M3.1 | 145 km | 18 km |
| May 8, 2009 | 9 km E of Constance Bay, Canada | M3.1 | 92 km | 21 km |
| Jul 31, 2017 | 30 km NNE of Val-des-Monts, Canada | M3.1 | 146 km | 22 km |
| May 17, 2013 | 21 km NNE of Shawville, Canada | M3.1 | 119 km | 18 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 | 130 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 15°F (-10°C) | 2.8 in | Coldest |
| February | 17°F (-9°C) | 2.3 in | Driest |
| March | 27°F (-3°C) | 2.4 in | |
| April | 41°F (5°C) | 2.8 in | |
| May | 54°F (12°C) | 3.2 in | |
| June | 63°F (17°C) | 3.3 in | |
| July | 68°F (20°C) | 3.0 in | Warmest |
| August | 67°F (19°C) | 3.3 in | |
| September | 59°F (15°C) | 3.9 in | Wettest |
| October | 48°F (9°C) | 3.2 in | |
| November | 37°F (3°C) | 3.5 in | |
| December | 23°F (-5°C) | 2.8 in |
Rideau Lakes has a seasonal temperature swing of 54°F / from 15°F in January to 68°F in July. Total annual precipitation is 36.5 inches, with September being the wettest month (3.9") and February the driest (2.3").