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Weather & Climate in French River / Rivière des Français, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
French River / Rivière des Français has a cool climate with an average annual temperature of 40°F (5°C). Winters average 11°F in January while summers reach 66°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 37.5 inches. The area receives 14.7 inches of snow annually. The city sits at an elevation of 741 feet.
Temperature
11°F Jan (-12°C)
66°F Jul (19°C)
| Annual Average | 40.2°F |
| 26% below US avg | |
| January Average | 11°F (-12°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 268 days/yr |
Geography
| Elevation | 741 ft (226 m) |
| Area | 277.2 sq mi (717.9 km²) |
| Population Density | 10/sq mi |
| Coordinates | 46.1489°N, 80.5003°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
11 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 | 146 km | 18 km |
| Mar 9, 1998 | Ontario, Canada | M3.9 | 58 km | 1 km |
| Aug 5, 2014 | 6 km NNW of Lively, Canada | M3.8 | 65 km | 5 km |
| Mar 13, 2005 | 5 km N of Greater Sudbury, Canada | M3.6 | 57 km | 18 km |
| Oct 10, 1995 | southern Quebec, Canada | M3.5 | 136 km | 18 km |
| May 25, 1998 | 3 km NW of Lively, Canada | M3.4 | 62 km | 1 km |
| Aug 5, 2014 | 5 km NNW of Lively, Canada | M3.3 | 64 km | 12 km |
| May 2, 2015 | 12 km NE of Notre-Dame-du-Lac, Canada | M3.3 | 142 km | 18 km |
| Feb 8, 2019 | 7 km SW of Azilda, Canada | M3.1 | 65 km | 2 km |
| Jul 29, 2012 | 17 km SSW of Parry Sound, Canada | M2.5 | 111 km | 5 km |
| May 17, 2010 | 19 km WNW of Gravenhurst, Canada | M2.5 | 146 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 | - | 134 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 11°F (-12°C) | 3.1 in | Coldest |
| February | 13°F (-10°C) | 2.3 in | Driest |
| March | 24°F (-5°C) | 2.4 in | |
| April | 38°F (3°C) | 2.5 in | |
| May | 51°F (11°C) | 3.5 in | |
| June | 61°F (16°C) | 2.9 in | |
| July | 66°F (19°C) | 2.9 in | Warmest |
| August | 65°F (18°C) | 3.2 in | |
| September | 56°F (14°C) | 3.9 in | Wettest |
| October | 45°F (7°C) | 3.8 in | |
| November | 33°F (1°C) | 3.6 in | |
| December | 19°F (-7°C) | 3.3 in |
French River / Rivière des Français has a seasonal temperature swing of 55°F / from 11°F in January to 66°F in July. Total annual precipitation is 37.5 inches, with September being the wettest month (3.9") and February the driest (2.3").