Weather & Climate in Bonfield, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Bonfield has a cool climate with an average annual temperature of 39°F (4°C). Winters average 9°F in January while summers reach 65°F in July. Annual precipitation totals 35.2 inches. The area receives 10.9 inches of snow annually. The city sits at an elevation of 784 feet.
Temperature
9°F Jan (-13°C)
65°F Jul (18°C)
| Annual Average | 38.9°F |
| 28% below US avg | |
| January Average | 9°F (-13°C) |
| July Average | 65°F (18°C) |
Geography
| Elevation | 784 ft (239 m) |
| Area | 79.6 sq mi (206.2 km²) |
| Population Density | 27/sq mi |
| Coordinates | 46.2309°N, 79.1469°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
9 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 | 75 km | 18 km |
| Mar 13, 2005 | 5 km N of Greater Sudbury, Canada | M3.6 | 145 km | 18 km |
| Oct 20, 2013 | 34 km SSW of Petawawa, Canada | M3.6 | 148 km | 18 km |
| Oct 10, 1995 | southern Quebec, Canada | M3.5 | 36 km | 18 km |
| May 14, 2016 | 8 km NW of Petawawa, Canada | M3.5 | 142 km | 18 km |
| May 2, 2015 | 12 km NE of Notre-Dame-du-Lac, Canada | M3.3 | 68 km | 18 km |
| Apr 1, 2020 | 3 km NE of Saint-Isidore, Canada | M2.9 | 136 km | 10 km |
| Jul 29, 2012 | 17 km SSW of Parry Sound, Canada | M2.5 | 137 km | 5 km |
| May 17, 2010 | 19 km WNW of Gravenhurst, Canada | M2.5 | 140 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 9°F (-13°C) | 2.0 in | Coldest |
| February | 11°F (-12°C) | 1.6 in | Driest |
| March | 22°F (-6°C) | 1.9 in | |
| April | 37°F (3°C) | 2.4 in | |
| May | 51°F (11°C) | 3.1 in | |
| June | 60°F (16°C) | 3.4 in | |
| July | 65°F (18°C) | 4.0 in | Warmest |
| August | 63°F (17°C) | 3.7 in | |
| September | 55°F (13°C) | 4.1 in | Wettest |
| October | 44°F (7°C) | 3.5 in | |
| November | 32°F (-0°C) | 3.1 in | |
| December | 17°F (-8°C) | 2.3 in |
Bonfield has a seasonal temperature swing of 56°F / from 9°F in January to 65°F in July. Total annual precipitation is 35.2 inches, with September being the wettest month (4.1") and February the driest (1.6").