Frankfort, SD

Full City Profile · South Dakota · Spink County County

3.8 /5.0
B+ Good
142 Population 180/sq mi density
$61,875 Median Income $38,224 per capita
$54,600 Home Value $194,661 Zillow
44°F Avg Temperature
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.9 / 5.0
$61,875 median income, 4.2% unemployment
A+
Affordability
5.0 / 5.0
$54,600 home value, /mo rent
C
Education
2.4 / 5.0
18.0% bachelor's degree or higher
Frankfort has a cool climate with an average annual temperature of 44°F (7°C). Winters average 13°F in January while summers reach 72°F in July. Annual precipitation totals 22.3 inches. The area receives 23.3 inches of snow annually.

Temperature

13°F Jan (-11°C) 72°F Jul (22°C)
Annual Average44.0°F
19% below US avg
January Average13°F (-11°C)
July Average72°F (22°C)

Geography

Elevation1,297 ft (395 m)
Area0.8 sq mi (2.0 km²)
Population Density180/sq mi
Coordinates44.8777°N, 98.3092°W
TimezoneAmerica/Chicago
CountySpink County County
Nearest AirportHuron Regional (HON)
34 miles away

Precipitation & Snow

Annual Rainfall 22.3"
41% below US avg
Snowfall 23.3"
Wettest Month (Jun) 4.20"
Driest Month (Jan) 0.46"

Air Quality

Natural Hazard Risk

Overall RiskVery Low
Risk Score17.7 / 100
Social Vulnerability10.6 / 100
Community Resilience61.7 / 100

Hazard Breakdown

Tornado Relatively Low
Earthquake Very Low
Wildfire Relatively Low
Flood Very Low
Hail Relatively Low
Strong Wind Very Low
Heat Wave Very Low
Winter Weather Relatively Moderate
Lightning Very Low
Ice Storm Relatively Low
Drought Relatively Low
Cold Wave Relatively Moderate
Landslide Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

5 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.6. Most recent: M2.5 on Jan 16, 2022.

Oct 25, 1990 8 km N of Plankinton, South Dakota M3.6 121 km
Jul 26, 2002 0 km WSW of Huron, South Dakota M3.1 58 km
Aug 15, 2017 8 km E of Agar, South Dakota M3.0 130 km
Jul 3, 1995 9 km SSW of Fort Thompson, South Dakota M2.8 136 km
Jan 16, 2022 9 km NE of Plankinton, South Dakota M2.5 124 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

414 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 5 fatalities, 59 injuries.

Date Rating Distance Fatalities
Jun 18, 2014 EF4 94 km 0
Jun 24, 2003 EF4 79 km 0
Jun 23, 2002 EF4 90 km 0
Aug 24, 2006 EF3 62 km 0
Jun 24, 2003 EF3 98 km 0
Jun 24, 2003 EF3 61 km 0
Jun 23, 2002 EF3 98 km 0
May 31, 1996 EF3 67 km 0
Jun 7, 1993 EF3 35 km 0
May 12, 1984 EF3 46 km 0
Jul 18, 1983 EF3 90 km 0
Jul 1, 1973 EF3 44 km 1
Jul 3, 1971 EF3 99 km 0
Jun 25, 1969 EF3 66 km 0
Jun 21, 1961 EF3 66 km 1
Jun 9, 1957 EF3 67 km 0
Aug 30, 2020 EF2 57 km 1
Jul 4, 2020 EF2 96 km 0
Jun 18, 2014 EF2 92 km 0
Jun 18, 2014 EF2 99 km 0
Source: NOAA SPC (EF0+, 1950-2024)

Wildfire History

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

Year Name Acres Distance
2000 GANN VALLEY 2,534 90 km
2004 TACOMA PARK PLACE 1,336 72 km
2000 PHEASANT OPENER 1,206 60 km
2005 N HYDE 1,204 91 km
2009 TAHOHPI WUI RX 1,166 56 km
1992 SPRING LK 1,001 99 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 13°F (-11°C) 0.5 in Coldest, Driest
February 17°F (-8°C) 0.5 in
March 31°F (-1°C) 1.0 in
April 44°F (7°C) 2.1 in
May 57°F (14°C) 2.6 in
June 67°F (19°C) 4.2 in Wettest
July 72°F (22°C) 3.0 in Warmest
August 70°F (21°C) 2.5 in
September 61°F (16°C) 2.6 in
October 46°F (8°C) 2.0 in
November 31°F (-0°C) 0.7 in
December 19°F (-7°C) 0.6 in

Frankfort has a seasonal temperature swing of 59°F / from 13°F in January to 72°F in July. Total annual precipitation is 22.3 inches, with June being the wettest month (4.2") and January the driest (0.5").

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