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New Effington, SD
Full City Profile · South Dakota · Roberts County County
3.1
/5.0
B
Good
236
Population
908/sq mi density
$48,558
Median Income
$24,636 per capita
$56,700
Home Value
$204,001 Zillow
$525
Median Rent
19.4% income on rent
42°F
Avg Temperature
276 sunny days/yr
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
C+
Economy
2.9 / 5.0
$48,558 median income, 2.9% unemployment
A+
Affordability
5.0 / 5.0
$56,700 home value, $525/mo rent
F
Education
1.4 / 5.0
4.7% bachelor's degree or higher
New Effington has a cool climate with an average annual temperature of 42°F (6°C). Winters average 10°F in January while summers reach 71°F in July. The area gets 276 sunny days per year. Annual precipitation totals 25.8 inches. The area receives 49.3 inches of snow annually. Air quality is rated Good with a median AQI of 35.
Temperature
10°F Jan (-12°C)
71°F Jul (21°C)
| Annual Average | 42.3°F |
| 22% below US avg | |
| January Average | 10°F (-12°C) |
| July Average | 71°F (21°C) |
| Sunny Days | 276 days/yr |
Geography
| Elevation | 1,085 ft (331 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 908/sq mi |
| Coordinates | 45.8576°N, 96.9150°W |
| Timezone | America/Chicago |
| County | Roberts County County |
| Nearest Airport | Watertown Regional (ATY) 66 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 35.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 37.8 / 100 |
| Social Vulnerability | 77.3 / 100 |
| Community Resilience | 24.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Very Low |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 10°F (-12°C) | 0.6 in | Coldest |
| February | 17°F (-8°C) | 0.6 in | |
| March | 29°F (-2°C) | 1.1 in | |
| April | 45°F (7°C) | 2.1 in | |
| May | 58°F (15°C) | 2.7 in | |
| June | 67°F (20°C) | 3.4 in | Wettest |
| July | 71°F (21°C) | 3.0 in | Warmest |
| August | 70°F (21°C) | 2.5 in | |
| September | 60°F (15°C) | 2.1 in | |
| October | 47°F (8°C) | 1.5 in | |
| November | 29°F (-2°C) | 0.8 in | |
| December | 16°F (-9°C) | 0.5 in | Driest |
New Effington has a seasonal temperature swing of 60°F / from 10°F in January to 71°F in July. Total annual precipitation is 20.8 inches, with June being the wettest month (3.4") and December the driest (0.5").