Weather & Climate in Corn Creek, SD

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Corn Creek experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 24°F in January while summers reach 76°F in July. The area gets 291 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 20.4 inches (drier than the 38-inch national average). The area receives 40.0 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 35. The city sits at an elevation of 2,405 feet.

Temperature

24°F Jan (-5°C) 76°F Jul (24°C)

Annual Average	48.9°F
	9% below US avg
January Average	24°F (-5°C)
July Average	76°F (24°C)
Sunny Days	291 days/yr

Geography

Elevation	2,405 ft (733 m)
Area	2.1 sq mi (5.4 km²)
Population Density	72/sq mi
Coordinates	43.5757°N, 101.2085°W
Timezone	America/Chicago
County	Jackson County County
Nearest Airport	Pierre Regional (PIR) 72 miles away

Precipitation & Snow

Annual Rainfall 20.4"

46% below US avg

Snowfall 40.0"

Wettest Month (Jun) 3.35"

Driest Month (Jan) 0.28"

Air Quality

AQI Median	35.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	10.2 / 100
Social Vulnerability	99.7 / 100
Community Resilience	0.4 / 100

Hazard Breakdown

Tornado	Very Low
Earthquake	Very Low
Wildfire	Relatively 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 Moderate
Drought	Relatively Low
Cold Wave	Relatively Low
Landslide	Very Low

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

Earthquake History

18 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.

Jan 28, 1990	8 km N of Manderson-White Horse Creek, South Dakota	M4.0	109 km	5 km
May 25, 2003	10 km SSW of Martin, South Dakota	M4.0	72 km	5 km
May 30, 2024	38 km NNW of Pierre, South Dakota	M3.7	134 km	15 km
Jan 25, 1994	8 km E of Wood Lake, Nebraska	M3.3	137 km	5 km
Aug 9, 2011	2 km S of Fort Pierre, South Dakota	M3.3	107 km	5 km
Jun 18, 2015	15 km SSE of Valentine, Nebraska	M3.3	110 km	5 km
Mar 2, 1990	7 km N of Manderson-White Horse Creek, South Dakota	M3.2	109 km	5 km
Aug 5, 2022	4 km ENE of Draper, South Dakota	M3.2	70 km	9 km
Feb 7, 2007	11 km WSW of Wasta, South Dakota	M3.1	121 km	5 km
Feb 20, 1993	21 km WSW of Cody, Nebraska	M3.1	85 km	5 km
Jul 12, 1998	7 km E of Corn Creek, South Dakota	M3.1	8 km	5 km
Jan 16, 2012	25 km E of Buffalo Gap, South Dakota	M3.0	144 km	5 km
Jul 3, 1995	9 km SSW of Fort Thompson, South Dakota	M2.8	145 km	5 km
Apr 4, 2024	19 km SW of Interior, South Dakota	M2.8	78 km	9 km
Mar 20, 2010	9 km NNW of Springview, Nebraska	M2.7	137 km	5 km
Jul 7, 2024	11 km NNW of Merriman, Nebraska	M2.6	76 km	11 km
Jun 16, 2021	15 km N of Quinn, South Dakota	M2.6	94 km	5 km
Jun 8, 2025	19 km NW of Wasta, South Dakota	M2.6	131 km	5 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

226 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 12 injuries.

Date	Rating	Distance	Path	Fatalities
Jun 6, 1963	EF3	77 km	24.4 mi	0
Jun 15, 1962	EF3	72 km	0.1 mi	0
Aug 6, 1956	EF3	80 km	28.3 mi	0
Jun 12, 2022	EF2	51 km	3.9 mi	0
Jun 12, 2022	EF2	42 km	0.5 mi	0
May 22, 2016	EF2	88 km	4.6 mi	0
Jul 13, 2009	EF2	91 km	0.1 mi	0
Jul 3, 2003	EF2	50 km	3.0 mi	0
Jun 15, 1992	EF2	63 km	2.0 mi	0
Mar 29, 1982	EF2	75 km	0.2 mi	0
Sep 7, 1979	EF2	53 km	1.0 mi	0
Jul 10, 1977	EF2	80 km	15.9 mi	0
Jul 19, 1975	EF2	74 km	20.9 mi	0
Jul 2, 1974	EF2	55 km	18.5 mi	0
May 19, 1974	EF2	78 km	2.7 mi	0
May 19, 1974	EF2	87 km	5.6 mi	0
Jul 8, 1973	EF2	47 km	1.0 mi	0
Jun 15, 1971	EF2	55 km	0.1 mi	0
Jun 4, 1971	EF2	59 km	0.3 mi	0
Jun 4, 1971	EF2	81 km	0.1 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: COTTONWOOD CA (41,775 acres, 2016).

Year	Name	Acres Burned	Distance
2016	COTTONWOOD CA	41,775	64 km
2012	LONGHORN COMPLEX	41,443	46 km
1985	YELLOWBEAR	19,212	79 km
1988	LIGHTNING	18,426	41 km
2024	POWER DAM ROAD	15,047	34 km
2012	CROOKSTON	14,962	71 km
2000	HASNOHORSE	13,420	90 km
2011	OKREEK	11,115	75 km
2000	DECKER	10,883	84 km
1987	BIG FIRE	9,107	42 km
2021	DRY CREEK CA	8,123	48 km
2023	MCCANN	7,110	83 km
2002	COTTONWOOD	6,696	94 km
2006	RED WATER	5,407	74 km
2017	WANBLEE TIMBER	4,982	27 km
2003	PAPA	4,746	66 km
1991	YELLOWROBE	4,679	41 km
2000	HAYES	4,627	99 km
2012	TOWER	4,599	30 km
2020	ADAMSON CA	4,175	92 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	24°F (-5°C)	0.3 in	Coldest, Driest
February	27°F (-3°C)	0.4 in
March	36°F (2°C)	1.3 in
April	47°F (8°C)	2.0 in
May	58°F (14°C)	2.9 in
June	68°F (20°C)	3.4 in	Wettest
July	76°F (24°C)	2.6 in	Warmest
August	73°F (23°C)	1.8 in
September	63°F (17°C)	1.3 in
October	50°F (10°C)	1.1 in
November	35°F (1°C)	0.5 in
December	25°F (-4°C)	0.4 in

Corn Creek has a seasonal temperature swing of 52°F / from 24°F in January to 76°F in July. Total annual precipitation is 18.0 inches, with June being the wettest month (3.4") and January the driest (0.3").

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