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Weather & Climate in Brock, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Brock has a cool climate with an average annual temperature of 43°F (6°C). Winters average 16°F in January while summers reach 67°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 37.4 inches. The area receives 14.7 inches of snow annually. The city sits at an elevation of 843 feet.
Temperature
16°F Jan (-9°C)
67°F Jul (20°C)
| Annual Average | 42.5°F |
| 21% below US avg | |
| January Average | 16°F (-9°C) |
| July Average | 67°F (20°C) |
| Sunny Days | 268 days/yr |
Geography
| Elevation | 843 ft (257 m) |
| Area | 163.2 sq mi (422.6 km²) |
| Population Density | 77/sq mi |
| Coordinates | 44.3477°N, 79.1002°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
15 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Nov 26, 1999 | 14 km ESE of Centennial Scarborough, Canada | M3.8 | 71 km | 13 km |
| Dec 25, 1998 | 23 km SE of Cobourg, Canada | M3.6 | 110 km | 18 km |
| May 24, 2000 | 4 km ENE of Centennial Scarborough, Canada | M3.1 | 60 km | 18 km |
| May 8, 2018 | 14 km SSE of Ajax, Canada | M3.0 | 69 km | 5 km |
| Aug 4, 2004 | 30 km SSW of Cobourg, Canada | M3.0 | 99 km | 5 km |
| Nov 7, 2002 | 13 km SSW of Belleville, Canada | M3.0 | 137 km | 18 km |
| Jul 19, 2007 | 27 km S of Cobourg, Canada | M3.0 | 101 km | 5 km |
| Mar 28, 2005 | 16 km NW of Virgil, Canada | M2.8 | 115 km | 7 km |
| Dec 21, 2009 | 10 km NNE of Olcott, New York | M2.7 | 108 km | 8 km |
| Mar 29, 2020 | 11 km N of Lyndonville, New York | M2.6 | 118 km | 5 km |
| Sep 20, 2009 | 20 km ESE of Oakville, Canada | M2.6 | 110 km | 4 km |
| Jul 11, 2017 | 11 km NNW of Barker, New York | M2.5 | 110 km | 5 km |
| Jul 29, 2012 | 17 km SSW of Parry Sound, Canada | M2.5 | 122 km | 5 km |
| May 17, 2010 | 19 km WNW of Gravenhurst, Canada | M2.5 | 83 km | 5 km |
| Feb 13, 2014 | 34 km N of Lyndonville, New York | M2.5 | 97 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 16°F (-9°C) | 3.3 in | Coldest |
| February | 17°F (-8°C) | 2.3 in | Driest |
| March | 27°F (-3°C) | 2.4 in | |
| April | 40°F (5°C) | 2.8 in | |
| May | 53°F (12°C) | 3.4 in | |
| June | 62°F (17°C) | 3.6 in | |
| July | 67°F (20°C) | 2.9 in | Warmest |
| August | 66°F (19°C) | 3.3 in | |
| September | 58°F (14°C) | 3.6 in | |
| October | 47°F (8°C) | 3.2 in | |
| November | 35°F (2°C) | 3.7 in | Wettest |
| December | 23°F (-5°C) | 3.0 in |
Brock has a seasonal temperature swing of 52°F / from 16°F in January to 67°F in July. Total annual precipitation is 37.4 inches, with November being the wettest month (3.7") and February the driest (2.3").