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Kennebec, SD
Full City Profile · South Dakota · Lyman County County
3.3
/5.0
B
Good
367
Population
432/sq mi density
$71,667
Median Income
$37,292 per capita
$145,100
Home Value
$180,256 Zillow
48°F
Avg Temperature
291 sunny days/yr
176
Violent Crime/100K
847 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.2 / 5.0
$71,667 median income, 0.4% unemployment
A+
Affordability
5.0 / 5.0
$145,100 home value, /mo rent
F
Safety
1.0 / 5.0
176 violent crimes/100K
C+
Education
2.9 / 5.0
23.5% bachelor's degree or higher
Kennebec experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 20°F in January while summers reach 76°F in July. The area gets 291 sunny days per year. Annual precipitation totals 20.8 inches. The area receives 39.6 inches of snow annually. Air quality is rated Good with a median AQI of 35.
Temperature
20°F Jan (-6°C)
76°F Jul (24°C)
| Annual Average | 48.1°F |
| 11% below US avg | |
| January Average | 20°F (-6°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 291 days/yr |
Geography
| Elevation | 1,690 ft (515 m) |
| Area | 0.9 sq mi (2.2 km²) |
| Population Density | 432/sq mi |
| Coordinates | 43.9035°N, 99.8620°W |
| Timezone | America/Chicago |
| County | Lyman County County |
| Nearest Airport | Pierre Regional (PIR) 39 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 35.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 26.5 / 100 |
| Social Vulnerability | 86.2 / 100 |
| Community Resilience | 28.6 / 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)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-6°C) | 0.3 in | Coldest, Driest |
| February | 24°F (-4°C) | 0.4 in | |
| March | 34°F (1°C) | 1.2 in | |
| April | 47°F (8°C) | 2.1 in | |
| May | 59°F (15°C) | 3.0 in | Wettest |
| June | 69°F (20°C) | 3.0 in | |
| July | 76°F (24°C) | 2.7 in | Warmest |
| August | 74°F (23°C) | 2.0 in | |
| September | 63°F (17°C) | 1.5 in | |
| October | 50°F (10°C) | 1.5 in | |
| November | 33°F (1°C) | 0.6 in | |
| December | 22°F (-6°C) | 0.4 in |
Kennebec has a seasonal temperature swing of 55°F / from 20°F in January to 76°F in July. Total annual precipitation is 18.6 inches, with May being the wettest month (3.0") and January the driest (0.3").