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La Plant, SD
Full City Profile · South Dakota · Dewey County County
2.3
/5.0
C
Fair
266
Population
28/sq mi density
$18,629
Median Income
$4,896 per capita
$467
Median Rent
24.1% income on rent
46°F
Avg Temperature
311 sunny days/yr
226
Violent Crime/100K
2,317 property/100K
C
Overall
2.3 / 5.0
Fair overall score based on economy, affordability, safety and education
F
Economy
1.0 / 5.0
$18,629 median income, 39.3% unemployment
B+
Affordability
3.7 / 5.0
F
Safety
1.0 / 5.0
226 violent crimes/100K
B
Education
3.4 / 5.0
0.0% bachelor's degree or higher
La Plant experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 19°F in January while summers reach 74°F in July. The area gets 311 sunny days per year. Annual precipitation totals 17.4 inches. Air quality is rated Good with a median AQI of 35.
Temperature
19°F Jan (-7°C)
74°F Jul (23°C)
| Annual Average | 46.2°F |
| 14% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 311 days/yr |
Geography
| Elevation | 2,021 ft (616 m) |
| Area | 9.5 sq mi (24.6 km²) |
| Population Density | 28/sq mi |
| Coordinates | 45.1282°N, 100.6409°W |
| Timezone | America/Chicago |
| County | Dewey County County |
| Nearest Airport | Pierre Regional (PIR) 54 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 35.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 78.7 / 100 |
| Social Vulnerability | 98.7 / 100 |
| Community Resilience | 6.9 / 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 High |
| Lightning | Very Low |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | Very High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 0.4 in | Coldest, Driest |
| February | 22°F (-6°C) | 0.5 in | |
| March | 32°F (0°C) | 1.2 in | |
| April | 45°F (7°C) | 2.0 in | |
| May | 58°F (14°C) | 2.7 in | |
| June | 67°F (20°C) | 3.0 in | Wettest |
| July | 74°F (23°C) | 2.2 in | Warmest |
| August | 72°F (22°C) | 1.9 in | |
| September | 61°F (16°C) | 1.3 in | |
| October | 48°F (9°C) | 1.1 in | |
| November | 31°F (-0°C) | 0.5 in | |
| December | 19°F (-7°C) | 0.5 in |
La Plant has a seasonal temperature swing of 55°F / from 19°F in January to 74°F in July. Total annual precipitation is 17.2 inches, with June being the wettest month (3.0") and January the driest (0.4").