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Weather & Climate in Rivière-Saint-Jean, QC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rivière-Saint-Jean has a cool climate with an average annual temperature of 35°F (2°C). Winters average 8°F in January while summers reach 59°F in July. The area gets 263 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 40.4 inches. The area receives 17.1 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 20 feet.
Temperature
8°F Jan (-13°C)
59°F Jul (15°C)
| Annual Average | 34.7°F |
| 36% below US avg | |
| January Average | 8°F (-13°C) |
| July Average | 59°F (15°C) |
| Sunny Days | 263 days/yr |
Geography
| Elevation | 20 ft (6 m) |
| Area | 198.2 sq mi (513.4 km²) |
| Population Density | 1/sq mi |
| Coordinates | 50.2912°N, 64.3311°W |
| Timezone | America/Montreal |
Precipitation & Snow
Air Quality
Earthquake History
10 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.
| Sep 21, 2013 | 53 km SSE of Maliotenam, Canada | M4.2 | 127 km | 18 km |
| Mar 24, 2001 | 29 km SE of Havre-Saint-Pierre, Canada | M4.2 | 76 km | 18 km |
| Oct 2, 2011 | 114 km NNW of Havre-Saint-Pierre, Canada | M4.0 | 103 km | 26 km |
| Sep 16, 2001 | 48 km NNE of Havre-Saint-Pierre, Canada | M3.7 | 81 km | 5 km |
| Jul 21, 2009 | 63 km SSE of Maliotenam, Canada | M3.5 | 117 km | 14 km |
| May 9, 2006 | 24 km SSE of Sept-Îles, Canada | M3.0 | 144 km | 18 km |
| Jan 3, 2019 | 77 km ENE of Maliotenam, Canada | M2.9 | 71 km | 15 km |
| Sep 28, 2017 | 10 km N of Havre-Saint-Pierre, Canada | M2.8 | 54 km | 1 km |
| Sep 28, 2017 | 3 km NE of Havre-Saint-Pierre, Canada | M2.7 | 54 km | 5 km |
| Jul 29, 2022 | eastern Quebec, Canada | M2.6 | 56 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 8°F (-13°C) | 2.7 in | Coldest |
| February | 10°F (-12°C) | 2.0 in | Driest |
| March | 20°F (-7°C) | 2.4 in | |
| April | 31°F (-0°C) | 2.8 in | |
| May | 42°F (6°C) | 3.4 in | |
| June | 52°F (11°C) | 3.7 in | |
| July | 59°F (15°C) | 3.8 in | Warmest |
| August | 58°F (15°C) | 4.1 in | |
| September | 50°F (10°C) | 4.0 in | |
| October | 40°F (4°C) | 4.4 in | Wettest |
| November | 29°F (-2°C) | 3.9 in | |
| December | 16°F (-9°C) | 3.4 in |
Rivière-Saint-Jean has a seasonal temperature swing of 51°F / from 8°F in January to 59°F in July. Total annual precipitation is 40.4 inches, with October being the wettest month (4.4") and February the driest (2.0").