All Countries
Weather & Climate in Brentwood Colony, SD
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Brentwood Colony has a cool climate with an average annual temperature of 44°F (7°C). Winters average 14°F in January while summers reach 72°F in July. The area gets 276 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 22.0 inches (drier than the 38-inch national average). The area receives 43.7 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 35. The city sits at an elevation of 1,716 feet.
Temperature
14°F Jan (-10°C)
72°F Jul (22°C)
| Annual Average | 44.0°F |
| 19% below US avg | |
| January Average | 14°F (-10°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 276 days/yr |
Geography
| Elevation | 1,716 ft (523 m) |
| Area | 0.9 sq mi (2.3 km²) |
| Population Density | 70/sq mi |
| Coordinates | 45.1548°N, 99.3022°W |
| Timezone | America/Chicago |
| County | Faulk County County |
| Nearest Airport | Aberdeen Regional (ABR) 47 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 35.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 8.0 / 100 |
| Social Vulnerability | 90.7 / 100 |
| Community Resilience | 48.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.7.
| May 30, 2024 | 38 km NNW of Pierre, South Dakota | M3.7 | 111 km | 15 km |
| Aug 9, 2011 | 2 km S of Fort Pierre, South Dakota | M3.3 | 125 km | 5 km |
| Jul 26, 2002 | 0 km WSW of Huron, South Dakota | M3.1 | 123 km | 5 km |
| Aug 15, 2017 | 8 km E of Agar, South Dakota | M3.0 | 63 km | 5 km |
| Jul 3, 1995 | 9 km SSW of Fort Thompson, South Dakota | M2.8 | 129 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
329 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 7 fatalities, 48 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 22, 2010 | EF4 | 48 km | 5.7 mi | 0 |
| Jun 23, 2002 | EF4 | 90 km | 9.0 mi | 0 |
| Aug 24, 2006 | EF3 | 64 km | 14.0 mi | 0 |
| Aug 24, 2006 | EF3 | 91 km | 24.5 mi | 0 |
| Jun 23, 2002 | EF3 | 83 km | 10.0 mi | 0 |
| May 31, 1996 | EF3 | 73 km | 32.0 mi | 0 |
| Jun 7, 1993 | EF3 | 78 km | 5.0 mi | 0 |
| Jul 1, 1973 | EF3 | 64 km | 0.3 mi | 1 |
| Jul 3, 1971 | EF3 | 99 km | 0.1 mi | 0 |
| Jun 20, 1968 | EF3 | 83 km | 8.8 mi | 0 |
| Jun 20, 1968 | EF3 | 69 km | 0.1 mi | 0 |
| Jul 31, 1966 | EF3 | 95 km | 26.4 mi | 2 |
| Jun 21, 1961 | EF3 | 91 km | 156.3 mi | 1 |
| Jun 9, 1957 | EF3 | 19 km | 1.0 mi | 0 |
| Aug 28, 2024 | EF2 | 94 km | 5.4 mi | 0 |
| Aug 30, 2020 | EF2 | 55 km | 1.6 mi | 1 |
| Jul 4, 2020 | EF2 | 69 km | 2.7 mi | 0 |
| May 22, 2010 | EF2 | 49 km | 18.6 mi | 0 |
| Aug 24, 2006 | EF2 | 73 km | 5.0 mi | 0 |
| Jul 18, 2001 | EF2 | 31 km | 1.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
9 wildfires (100+ acres) recorded within 100 km. Largest: ROHRBACH (2,887 acres, 2022).
| Year | Name | Acres Burned | Distance |
| 2022 | ROHRBACH | 2,887 | 24 km |
| 2006 | 1804 | 2,778 | 91 km |
| 2011 | MOUND CITY | 2,755 | 97 km |
| 2006 | FOUR BEAR | 2,179 | 84 km |
| 2003 | JOEL BERTSCH 2 | 1,460 | 85 km |
| 2004 | TACOMA PARK PLACE | 1,336 | 92 km |
| 2004 | ALLEN STUECKLE | 1,330 | 83 km |
| 2005 | N HYDE | 1,204 | 50 km |
| 2021 | FUZZY | 1,075 | 89 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 14°F (-10°C) | 0.4 in | Coldest |
| February | 19°F (-7°C) | 0.5 in | |
| March | 30°F (-1°C) | 1.3 in | |
| April | 45°F (7°C) | 2.0 in | |
| May | 57°F (14°C) | 2.8 in | |
| June | 66°F (19°C) | 3.2 in | Wettest |
| July | 72°F (22°C) | 2.6 in | Warmest |
| August | 71°F (21°C) | 2.4 in | |
| September | 60°F (16°C) | 1.6 in | |
| October | 47°F (8°C) | 1.5 in | |
| November | 30°F (-1°C) | 0.7 in | |
| December | 17°F (-8°C) | 0.4 in | Driest |
Brentwood Colony has a seasonal temperature swing of 57°F / from 14°F in January to 72°F in July. Total annual precipitation is 19.2 inches, with June being the wettest month (3.2") and December the driest (0.4").