Brentford, SD

Full City Profile · South Dakota · Brown County County

2.0 /5.0

C Fair

84 Population 525/sq mi density

44°F Avg Temperature 276 sunny days/yr

282 Violent Crime/100K 1,976 property/100K

Overall

2.0 / 5.0

Fair overall score based on economy, affordability, safety and education

Safety

1.0 / 5.0

282 violent crimes/100K

Education

3.1 / 5.0

25.8% bachelor's degree or higher

Brentford has a cool climate with an average annual temperature of 44°F (7°C). Winters average 12°F in January while summers reach 72°F in July. The area gets 276 sunny days per year. Annual precipitation totals 24.1 inches. The area receives 28.0 inches of snow annually. Air quality is rated Good with a median AQI of 35.

Temperature

12°F Jan (-11°C) 72°F Jul (22°C)

Annual Average	43.6°F
	19% below US avg
January Average	12°F (-11°C)
July Average	72°F (22°C)
Sunny Days	276 days/yr

Geography

Elevation	1,299 ft (396 m)
Area	0.2 sq mi (0.4 km²)
Population Density	525/sq mi
Coordinates	45.1592°N, 98.3226°W
Timezone	America/Chicago
County	Brown County County
Nearest Airport	Aberdeen Regional (ABR) 20 miles away

Precipitation & Snow

Annual Rainfall 24.1"

36% below US avg

Snowfall 28.0"

Wettest Month (Jun) 3.27"

Driest Month (Jan) 0.35"

Air Quality

AQI Median	35.0
Rating	Good

Air Pollutants (EPA 2023)

PM2.5 (Fine Particles)	7.1 μg/m³

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	73.5 / 100
Social Vulnerability	24.1 / 100
Community Resilience	85.6 / 100

Hazard Breakdown

Tornado	Relatively Moderate
Earthquake	Very Low
Wildfire	Relatively Low
Flood	Relatively Low
Hail	Relatively Moderate
Strong Wind	Relatively Moderate
Heat Wave	Relatively Low
Winter Weather	Very High
Lightning	Very Low
Ice Storm	Relatively Moderate
Drought	Very Low
Cold Wave	Relatively High
Landslide	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

3 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.7. Most recent: M3.0 on Aug 15, 2017.

Oct 20, 1995	8 km SSE of New Effington, South Dakota	M3.7	134 km
Jul 26, 2002	0 km WSW of Huron, South Dakota	M3.1	89 km
Aug 15, 2017	8 km E of Agar, South Dakota	M3.0	134 km

Source: USGS (M2.5+, 1990–2025)

Tornado History

394 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 5 fatalities, 54 injuries.

Date	Rating	Distance	Fatalities
Jun 23, 2002	EF4	59 km	0
Aug 24, 2006	EF3	89 km	0
Jun 24, 2003	EF3	91 km	0
Jun 23, 2002	EF3	68 km	0
May 31, 1996	EF3	37 km	0
Jun 7, 1993	EF3	61 km	0
May 12, 1984	EF3	56 km	0
Jul 18, 1983	EF3	95 km	0
Jul 1, 1973	EF3	17 km	1
Jun 25, 1969	EF3	38 km	0
May 20, 1965	EF3	86 km	0
Jun 21, 1961	EF3	35 km	1
Jun 9, 1957	EF3	65 km	0
Aug 30, 2020	EF2	72 km	1
Jul 4, 2020	EF2	68 km	0
May 22, 2010	EF2	78 km	0
May 22, 2010	EF2	68 km	0
Aug 24, 2006	EF2	92 km	0
Aug 24, 2006	EF2	94 km	0
Jun 24, 2003	EF2	98 km	0

Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

6 wildfires (100+ acres) within 100 km. Largest: ROHRBACH (2,887 ac, 2022).

Year	Name	Acres	Distance
2022	ROHRBACH	2,887	92 km
2004	TACOMA PARK PLACE	1,336	41 km
2016	SLR 2016 RX MICHELL	1,242	82 km
2000	PHEASANT OPENER	1,206	39 km
2009	TAHOHPI WUI RX	1,166	87 km
1992	SPRING LK	1,001	84 km

Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	12°F (-11°C)	0.4 in	Coldest, Driest
February	18°F (-8°C)	0.6 in
March	31°F (-1°C)	1.1 in
April	46°F (8°C)	1.9 in
May	58°F (15°C)	2.7 in
June	67°F (20°C)	3.3 in	Wettest
July	72°F (22°C)	2.7 in	Warmest
August	71°F (21°C)	2.4 in
September	61°F (16°C)	1.8 in
October	47°F (8°C)	1.4 in
November	30°F (-1°C)	0.7 in
December	16°F (-9°C)	0.4 in

Brentford has a seasonal temperature swing of 60°F / from 12°F in January to 72°F in July. Total annual precipitation is 19.3 inches, with June being the wettest month (3.3") and January the driest (0.4").

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