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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. The area gets 268 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 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) |
| Sunny Days | 268 days/yr |
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").