Weather & Climate in Caledon, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Caledon has a cool climate with an average annual temperature of 45°F (7°C). Winters average 21°F in January while summers reach 68°F in July. Annual precipitation totals 34.6 inches. The area receives 62.6 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 1,440 feet.
Temperature
21°F Jan (-6°C)
68°F Jul (20°C)
| Annual Average | 45.3°F |
| 16% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 68°F (20°C) |
Geography
| Elevation | 1,440 ft (439 m) |
| Area | 266.0 sq mi (688.8 km²) |
| Population Density | 288/sq mi |
| Coordinates | 43.8654°N, 79.9932°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
17 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Feb 6, 2023 | 1 km NE of West Seneca, New York | M3.8 | 148 km | 6 km |
| Nov 26, 1999 | 14 km ESE of Centennial Scarborough, Canada | M3.8 | 82 km | 13 km |
| May 24, 2000 | 4 km ENE of Centennial Scarborough, Canada | M3.1 | 72 km | 18 km |
| Aug 4, 2004 | 30 km SSW of Cobourg, Canada | M3.0 | 141 km | 5 km |
| May 25, 1995 | 3 km NW of Amherst, New York | M3.0 | 135 km | 5 km |
| May 8, 2018 | 14 km SSE of Ajax, Canada | M3.0 | 85 km | 5 km |
| Jul 19, 2007 | 27 km S of Cobourg, Canada | M3.0 | 145 km | 5 km |
| Jun 16, 2004 | 11 km NNW of Angola on the Lake, New York | M2.9 | 144 km | 6 km |
| Mar 28, 2005 | 16 km NW of Virgil, Canada | M2.8 | 83 km | 7 km |
| Mar 8, 2008 | 5 km ENE of Clarence Center, New York | M2.7 | 148 km | 6 km |
| Dec 21, 2009 | 10 km NNE of Olcott, New York | M2.7 | 118 km | 8 km |
| Mar 29, 2020 | 11 km N of Lyndonville, New York | M2.6 | 140 km | 5 km |
| Sep 20, 2009 | 20 km ESE of Oakville, Canada | M2.6 | 69 km | 4 km |
| Jul 11, 2017 | 11 km NNW of Barker, New York | M2.5 | 123 km | 5 km |
| May 17, 2010 | 19 km WNW of Gravenhurst, Canada | M2.5 | 132 km | 5 km |
| Jul 29, 2012 | 17 km SSW of Parry Sound, Canada | M2.5 | 148 km | 5 km |
| Feb 13, 2014 | 34 km N of Lyndonville, New York | M2.5 | 131 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 2.7 m (9 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1855 | OWEN SOUND, LAKE HURON | Unknown | 2.7 m | - | 149 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 2.4 in | |
| February | 18°F (-8°C) | 2.0 in | Coldest, Driest |
| March | 27°F (-3°C) | 2.1 in | |
| April | 40°F (4°C) | 2.7 in | |
| May | 52°F (11°C) | 3.2 in | |
| June | 61°F (16°C) | 3.1 in | |
| July | 68°F (20°C) | 3.2 in | Warmest |
| August | 66°F (19°C) | 3.3 in | Wettest |
| September | 59°F (15°C) | 3.2 in | |
| October | 47°F (8°C) | 2.8 in | |
| November | 36°F (2°C) | 3.3 in | |
| December | 25°F (-4°C) | 2.4 in |
Caledon has a seasonal temperature swing of 50°F / from 18°F in February to 68°F in July. Total annual precipitation is 33.7 inches, with August being the wettest month (3.3") and February the driest (2.0").