Weather & Climate in South Bruce, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
South Bruce has a cool climate with an average annual temperature of 44°F (7°C). Winters average 21°F in January while summers reach 67°F in July. Annual precipitation totals 37.4 inches. The area receives 12.6 inches of snow annually. The city sits at an elevation of 686 feet.
Temperature
21°F Jan (-6°C)
67°F Jul (19°C)
| Annual Average | 44.0°F |
| 19% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 67°F (19°C) |
Geography
| Elevation | 686 ft (209 m) |
| Area | 188.0 sq mi (486.9 km²) |
| Population Density | 31/sq mi |
| Coordinates | 44.6834°N, 81.2164°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M2.5.
| Jul 29, 2012 | 17 km SSW of Parry Sound, Canada | M2.5 | 105 km | 5 km |
| May 17, 2010 | 19 km WNW of Gravenhurst, Canada | M2.5 | 135 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 | - | 39 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 3.7 in | Coldest |
| February | 21°F (-6°C) | 2.5 in | |
| March | 29°F (-2°C) | 2.4 in | Driest |
| April | 40°F (5°C) | 2.5 in | |
| May | 52°F (11°C) | 2.7 in | |
| June | 61°F (16°C) | 2.8 in | |
| July | 67°F (19°C) | 2.6 in | Warmest |
| August | 66°F (19°C) | 3.2 in | |
| September | 59°F (15°C) | 3.8 in | |
| October | 48°F (9°C) | 3.4 in | |
| November | 38°F (3°C) | 3.7 in | |
| December | 27°F (-3°C) | 4.0 in | Wettest |
South Bruce has a seasonal temperature swing of 46°F / from 21°F in January to 67°F in July. Total annual precipitation is 37.4 inches, with December being the wettest month (4.0") and March the driest (2.4").