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Weather & Climate in Brentwood, AB
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Brentwood has a cool climate with an average annual temperature of 42°F (5°C). Winters average 23°F in January while summers reach 63°F in July. The area gets 295 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 17.6 inches (drier than the 38-inch national average). The area receives 29.0 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 3,648 feet.
Temperature
23°F Jan (-5°C)
63°F Jul (17°C)
| Annual Average | 41.6°F |
| 23% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 295 days/yr |
Geography
| Elevation | 3,648 ft (1,112 m) |
| Area | 329.8 sq mi (854.3 km²) |
| Population Density | 22/sq mi |
| Coordinates | 51.0981°N, 114.1332°W |
| Timezone | America/Edmonton |
Precipitation & Snow
Air Quality
Earthquake History
17 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.1.
| Feb 14, 2021 | 5 km N of Banff, Canada | M4.1 | 100 km | 17 km |
| Nov 19, 1994 | 27 km SW of Rocky Mountain House, Canada | M4.0 | 142 km | 5 km |
| Oct 19, 1996 | 26 km SW of Rocky Mountain House, Canada | M3.9 | 145 km | 0 km |
| Mar 4, 2019 | 9 km NW of Red Deer, Canada | M3.8 | 137 km | 5 km |
| Aug 9, 2014 | 27 km SW of Rocky Mountain House, Canada | M3.8 | 139 km | 5 km |
| Jan 26, 2025 | 58 km NNW of Banff, Canada | M3.7 | 134 km | 4 km |
| Oct 19, 1996 | 30 km SW of Rocky Mountain House, Canada | M3.6 | 136 km | 0 km |
| Jul 28, 2002 | 29 km SSE of Canmore, Canada | M3.6 | 76 km | 1 km |
| Nov 11, 1990 | 33 km SSW of Rocky Mountain House, Canada | M3.6 | 127 km | 5 km |
| Aug 13, 1998 | 67 km NNW of Banff, Canada | M3.6 | 149 km | 0 km |
| Oct 29, 1998 | 36 km SW of Rocky Mountain House, Canada | M3.5 | 140 km | 0 km |
| Jun 18, 1991 | 15 km SW of Black Diamond, Canada | M3.5 | 61 km | 5 km |
| Apr 23, 1999 | 34 km SW of Rocky Mountain House, Canada | M3.0 | 140 km | 0 km |
| Apr 24, 1996 | 33 km SW of Rocky Mountain House, Canada | M2.9 | 141 km | 10 km |
| Apr 10, 2011 | 16 km SE of Invermere, Canada | M2.9 | 142 km | 1 km |
| Dec 14, 1990 | 27 km NNE of Elkford, Canada | M2.8 | 101 km | 5 km |
| Jun 7, 2023 | 16 km NNW of Elkford, Canada | M2.7 | 118 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 0.5 in | |
| February | 21°F (-6°C) | 0.4 in | Driest |
| March | 28°F (-2°C) | 0.7 in | |
| April | 40°F (4°C) | 1.0 in | |
| May | 49°F (10°C) | 2.2 in | |
| June | 57°F (14°C) | 3.5 in | Wettest |
| July | 63°F (17°C) | 2.7 in | Warmest |
| August | 61°F (16°C) | 2.3 in | |
| September | 51°F (11°C) | 1.9 in | |
| October | 42°F (5°C) | 0.6 in | |
| November | 27°F (-3°C) | 0.5 in | |
| December | 19°F (-7°C) | 0.5 in | Coldest |
Brentwood has a seasonal temperature swing of 44°F / from 19°F in December to 63°F in July. Total annual precipitation is 16.8 inches, with June being the wettest month (3.5") and February the driest (0.4").