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Clark Colony, SD

Full City Profile · South Dakota · Clark County County

1.6 /5.0
D Poor
63 Population 252/sq mi density
43°F Avg Temperature 276 sunny days/yr
386 Violent Crime/100K 2,427 property/100K
D
Overall
1.6 / 5.0
Below average overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
386 violent crimes/100K (1% above avg)
C
Education
2.2 / 5.0
0.0% bachelor's degree or higher
Clark Colony has a cool climate with an average annual temperature of 43°F (6°C). Winters average 12°F in January while summers reach 71°F in July. The area gets 276 sunny days per year. Annual precipitation totals 24.0 inches. Air quality is rated Good with a median AQI of 35.

Temperature

12°F Jan (-11°C) 71°F Jul (21°C)
Annual Average43.0°F
20% below US avg
January Average12°F (-11°C)
July Average71°F (21°C)
Sunny Days276 days/yr

Geography

Elevation1,419 ft (433 m)
Area0.3 sq mi (0.6 km²)
Population Density252/sq mi
Coordinates44.7914°N, 97.9815°W
TimezoneAmerica/Chicago
CountyClark County County
Nearest AirportHuron Regional (HON)
31 miles away

Precipitation & Snow

Annual Rainfall 24.0"
37% below US avg
Wettest Month (Jun) 3.50"
Driest Month (Dec) 0.43"

Air Quality

AQI Median35.0
RatingGood

Natural Hazard Risk

Overall RiskVery Low
Risk Score4.6 / 100
Social Vulnerability10.6 / 100
Community Resilience61.2 / 100

Hazard Breakdown

Tornado Very Low
Earthquake Very Low
Wildfire Very 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 No Rating
Cold Wave Relatively Low
Landslide Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

5 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.7. Most recent: M2.5 on Jan 16, 2022.

Oct 20, 1995 8 km SSE of New Effington, South Dakota M3.7 141 km
Oct 25, 1990 8 km N of Plankinton, South Dakota M3.6 118 km
Jul 26, 2002 0 km WSW of Huron, South Dakota M3.1 51 km
Jul 3, 1995 9 km SSW of Fort Thompson, South Dakota M2.8 149 km
Jan 16, 2022 9 km NE of Plankinton, South Dakota M2.5 119 km
Source: USGS (M2.5+, 1990–2025)

Tornado History

448 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 5 fatalities, 78 injuries.

Date Rating Distance Fatalities
Jun 18, 2014 EF4 90 km 0
Jun 24, 2003 EF4 59 km 0
May 30, 2022 EF3 91 km 0
Aug 24, 2006 EF3 75 km 0
Jun 24, 2003 EF3 47 km 0
Jun 24, 2003 EF3 92 km 0
May 31, 1996 EF3 85 km 0
Jun 7, 1993 EF3 53 km 0
Jun 16, 1992 EF3 81 km 0
Jun 16, 1992 EF3 87 km 0
May 12, 1984 EF3 22 km 0
Jul 18, 1983 EF3 65 km 0
Jul 1, 1973 EF3 65 km 1
Jun 25, 1969 EF3 74 km 0
Jun 21, 1961 EF3 78 km 1
Jun 9, 1957 EF3 94 km 0
May 30, 2022 EF2 92 km 0
May 12, 2022 EF2 94 km 0
May 12, 2022 EF2 76 km 0
Aug 30, 2020 EF2 80 km 1
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

5 wildfires (100+ acres) within 100 km. Largest: GANN VALLEY (2,534 ac, 2000).

Year Name Acres Distance
2000 GANN VALLEY 2,534 100 km
2004 TACOMA PARK PLACE 1,336 85 km
2000 PHEASANT OPENER 1,206 60 km
2009 TAHOHPI WUI RX 1,166 56 km
1992 SPRING LK 1,001 88 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 12°F (-11°C) 0.5 in Coldest
February 19°F (-7°C) 0.6 in
March 31°F (-0°C) 1.3 in
April 46°F (8°C) 2.1 in
May 58°F (15°C) 2.9 in
June 68°F (20°C) 3.5 in Wettest
July 71°F (21°C) 2.9 in
August 71°F (22°C) 2.4 in Warmest
September 61°F (16°C) 1.8 in
October 48°F (9°C) 1.6 in
November 30°F (-1°C) 0.9 in
December 17°F (-8°C) 0.4 in Driest

Clark Colony has a seasonal temperature swing of 59°F / from 12°F in January to 71°F in August. Total annual precipitation is 20.8 inches, with June being the wettest month (3.5") and December the driest (0.4").

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