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Weather & Climate in Brethour, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Brethour has a cool climate with an average annual temperature of 36°F (2°C). Winters average 3°F in January while summers reach 64°F in July / a wide seasonal temperature swing of 61°F. The area gets 276 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 33.0 inches. The area receives 12.8 inches of snow annually. The city sits at an elevation of 745 feet.
Temperature
3°F Jan (-16°C)
64°F Jul (18°C)
| Annual Average | 36.1°F |
| 33% below US avg | |
| January Average | 3°F (-16°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 276 days/yr |
Geography
| Elevation | 745 ft (227 m) |
| Area | 31.7 sq mi (82.0 km²) |
| Population Density | 3/sq mi |
| Coordinates | 47.7190°N, 79.5746°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.7.
| Jan 1, 2000 | 17 km NNE of Notre-Dame-du-Lac, Canada | M4.7 | 104 km | 18 km |
| May 2, 2015 | 12 km NE of Notre-Dame-du-Lac, Canada | M3.3 | 111 km | 18 km |
| Apr 1, 2020 | 3 km NE of Saint-Isidore, Canada | M2.9 | 37 km | 10 km |
| Jul 25, 2020 | 33 km NW of Malartic, Canada | M2.9 | 108 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 3°F (-16°C) | 2.1 in | Coldest |
| February | 7°F (-14°C) | 1.6 in | Driest |
| March | 19°F (-7°C) | 2.1 in | |
| April | 35°F (2°C) | 2.2 in | |
| May | 50°F (10°C) | 3.0 in | |
| June | 59°F (15°C) | 3.3 in | |
| July | 64°F (18°C) | 3.4 in | Warmest |
| August | 62°F (17°C) | 3.7 in | Wettest |
| September | 53°F (12°C) | 3.7 in | |
| October | 42°F (6°C) | 3.2 in | |
| November | 28°F (-2°C) | 2.5 in | |
| December | 12°F (-11°C) | 2.3 in |
Brethour has a seasonal temperature swing of 61°F / from 3°F in January to 64°F in July. Total annual precipitation is 33.0 inches, with August being the wettest month (3.7") and February the driest (1.6").