Egan, SD

Full City Profile · South Dakota · Moody County County

4.0 /5.0
A Great
235 Population 220/sq mi density
$60,278 Median Income $28,910 per capita
$79,400 Home Value $218,315 Zillow
$583 Median Rent 29.5% income on rent
43°F Avg Temperature
A
Overall
4.0 / 5.0
Strong
A
Economy
4.2 / 5.0
$60,278 median income, 2.1% unemployment
A+
Affordability
5.0 / 5.0
$79,400 home value, $583/mo rent
C+
Education
2.8 / 5.0
22.5% bachelor's degree or higher
Egan has a cool climate with an average annual temperature of 43°F (6°C). Winters average 13°F in January while summers reach 71°F in July. Annual precipitation totals 28.5 inches. The area receives 40.4 inches of snow annually.

Temperature

13°F Jan (-11°C) 71°F Jul (21°C)
Annual Average43.3°F
20% below US avg
January Average13°F (-11°C)
July Average71°F (21°C)

Geography

Elevation1,530 ft (466 m)
Area1.1 sq mi (2.8 km²)
Population Density220/sq mi
Coordinates44.0003°N, 96.6485°W
TimezoneAmerica/Chicago
CountyMoody County County
Nearest AirportBrookings Regional (BKX)
23 miles away

Precipitation & Snow

Annual Rainfall 28.5"
25% below US avg
Snowfall 40.4"
Wettest Month (Jun) 4.53"
Driest Month (Jan) 0.54"

Air Quality

Natural Hazard Risk

Overall RiskVery Low
Risk Score26.9 / 100
Social Vulnerability40.7 / 100
Community Resilience59.6 / 100

Hazard Breakdown

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

Earthquake History

4 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 M3.6 148 km
Jul 26, 2002 0 km WSW of Huron, South Dakota M3.1 132 km
Jan 4, 2021 5 km N of Tyndall, South Dakota M3.1 145 km
Jan 16, 2022 9 km NE of Plankinton, South Dakota M2.5 143 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

572 tornadoes (EF0+) within 100 km since 1950. Strongest: EF5. Total: 21 fatalities, 468 injuries.

Date Rating Distance Fatalities
Jun 16, 1992 EF5 55 km 1
Jun 13, 1968 EF5 74 km 9
Jun 25, 2010 EF4 84 km 0
Jun 24, 2003 EF4 95 km 0
May 30, 1998 EF4 87 km 6
Mar 29, 1998 EF4 90 km 1
Jun 7, 1993 EF4 38 km 0
Jun 7, 1993 EF4 52 km 0
Jun 16, 1992 EF4 60 km 0
Jul 7, 1955 EF4 64 km 1
May 30, 2022 EF3 90 km 0
Aug 7, 1994 EF3 87 km 0
Jun 7, 1993 EF3 29 km 0
Jun 7, 1993 EF3 26 km 0
Jun 7, 1993 EF3 55 km 0
May 7, 1993 EF3 69 km 0
Jun 16, 1992 EF3 89 km 0
Jun 16, 1992 EF3 57 km 0
Jun 16, 1992 EF3 67 km 0
Jun 16, 1992 EF3 71 km 0
Source: NOAA SPC (EF0+, 1950-2024)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 13°F (-11°C) 0.5 in Coldest, Driest
February 17°F (-8°C) 0.8 in
March 30°F (-1°C) 1.3 in
April 43°F (6°C) 2.7 in
May 56°F (13°C) 4.1 in
June 66°F (19°C) 4.5 in Wettest
July 71°F (21°C) 3.8 in Warmest
August 68°F (20°C) 3.6 in
September 60°F (16°C) 3.1 in
October 46°F (8°C) 2.2 in
November 31°F (-0°C) 1.0 in
December 19°F (-7°C) 0.9 in

Egan has a seasonal temperature swing of 58°F / from 13°F in January to 71°F in July. Total annual precipitation is 28.5 inches, with June being the wettest month (4.5") and January the driest (0.5").

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