Wetonka, SD
Full City Profile · South Dakota · Brown County County
5.0
/5.0
A+
Excellent
14
Population
56/sq mi density
42°F
Avg Temperature
A+
Overall
5.0 / 5.0
Strong
A+
Education
5.0 / 5.0
60.0% bachelor's degree or higher
Wetonka has a cool climate with an average annual temperature of 42°F (6°C). Winters average 11°F in January while summers reach 71°F in July. Annual precipitation totals 21.8 inches. The area receives 44.3 inches of snow annually. Air quality is rated Good with a median AQI of 24.
Temperature
11°F Jan (-12°C)
71°F Jul (22°C)
| Annual Average | 42.2°F |
| 22% below US avg | |
| January Average | 11°F (-12°C) |
| July Average | 71°F (22°C) |
Geography
| Elevation | 1,470 ft (448 m) |
| Area | 0.3 sq mi (0.6 km²) |
| Population Density | 56/sq mi |
| Coordinates | 45.6242°N, 98.7717°W |
| Timezone | America/Chicago |
| County | Brown County County |
| Nearest Airport | Aberdeen Regional (ABR) 21 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 24.0 |
| Rating | Good |
| Good Days % | 85.7% |
| Unhealthy Days | 4 |
Air Pollutants (EPA 2023)
| PM2.5 (Fine Particles) | 7.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 73.5 / 100 |
| Social Vulnerability | 24.1 / 100 |
| Community Resilience | 85.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Very High |
| Lightning | Very Low |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 11°F (-12°C) | 0.6 in | Coldest |
| February | 16°F (-9°C) | 0.7 in | |
| March | 28°F (-2°C) | 1.0 in | |
| April | 42°F (6°C) | 1.9 in | |
| May | 55°F (13°C) | 3.2 in | |
| June | 66°F (19°C) | 3.7 in | Wettest |
| July | 71°F (22°C) | 3.1 in | Warmest |
| August | 68°F (20°C) | 3.0 in | |
| September | 59°F (15°C) | 1.8 in | |
| October | 44°F (7°C) | 1.8 in | |
| November | 29°F (-2°C) | 0.7 in | |
| December | 17°F (-8°C) | 0.5 in | Driest |
Wetonka has a seasonal temperature swing of 60°F / from 11°F in January to 71°F in July. Total annual precipitation is 21.8 inches, with June being the wettest month (3.7") and December the driest (0.5").