Weather & Climate in Smooth Rock Falls, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Smooth Rock Falls has a cool climate with an average annual temperature of 33°F (1°C). Winters average -1°F in January while summers reach 62°F in July / a wide seasonal temperature swing of 63°F. Annual precipitation totals 33.9 inches. The area receives 13.4 inches of snow annually. The city sits at an elevation of 787 feet.
Temperature
-1°F Jan (-19°C)
62°F Jul (17°C)
| Annual Average | 33.1°F |
| 39% below US avg | |
| January Average | -1°F (-19°C) |
| July Average | 62°F (17°C) |
Geography
| Elevation | 787 ft (240 m) |
| Area | 77.1 sq mi (199.7 km²) |
| Population Density | 16/sq mi |
| Coordinates | 49.2835°N, 81.6331°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.7.
| Jan 3, 2006 | 68 km NNW of Iroquois Falls, Canada | M3.7 | 40 km | 15 km |
| Aug 16, 1996 | 42 km WSW of Kapuskasing, Canada | M3.5 | 94 km | 18 km |
| Mar 4, 2006 | 63 km E of Kapuskasing, Canada | M3.4 | 26 km | 18 km |
| Feb 1, 1999 | 58 km NNW of Iroquois Falls, Canada | M3.4 | 50 km | 18 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | -1°F (-19°C) | 2.2 in | Coldest |
| February | 3°F (-16°C) | 1.7 in | Driest |
| March | 15°F (-9°C) | 1.9 in | |
| April | 32°F (-0°C) | 2.1 in | |
| May | 47°F (8°C) | 2.6 in | |
| June | 57°F (14°C) | 3.1 in | |
| July | 62°F (17°C) | 4.2 in | Warmest, Wettest |
| August | 60°F (16°C) | 3.3 in | |
| September | 51°F (11°C) | 4.0 in | |
| October | 40°F (4°C) | 3.4 in | |
| November | 25°F (-4°C) | 2.8 in | |
| December | 7°F (-14°C) | 2.6 in |
Smooth Rock Falls has a seasonal temperature swing of 64°F / from -1°F in January to 62°F in July. Total annual precipitation is 33.9 inches, with July being the wettest month (4.2") and February the driest (1.7").