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Glenham, SD
Full City Profile · South Dakota · Walworth County County
3.0
/5.0
B
Good
119
Population
361/sq mi density
$56,250
Median Income
$37,973 per capita
$76,900
Home Value
$168,894 Zillow
46°F
Avg Temperature
311 sunny days/yr
226
Violent Crime/100K
2,317 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$56,250 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$76,900 home value, /mo rent
F
Safety
1.0 / 5.0
226 violent crimes/100K
C
Education
2.1 / 5.0
13.2% bachelor's degree or higher
Glenham experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 17°F in January while summers reach 75°F in July. The area gets 311 sunny days per year. Annual precipitation totals 18.0 inches. The area receives 31.0 inches of snow annually. Air quality is rated Good with a median AQI of 35.
Temperature
17°F Jan (-8°C)
75°F Jul (24°C)
| Annual Average | 46.4°F |
| 14% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 311 days/yr |
Geography
| Elevation | 1,686 ft (514 m) |
| Area | 0.3 sq mi (0.9 km²) |
| Population Density | 361/sq mi |
| Coordinates | 45.5330°N, 100.2711°W |
| Timezone | America/Chicago |
| County | Walworth County County |
| Nearest Airport | Pierre Regional (PIR) 79 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 35.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 39.5 / 100 |
| Social Vulnerability | 66.0 / 100 |
| Community Resilience | 82.3 / 100 |
Hazard Breakdown
| Tornado | Relatively 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 | Very 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 | 17°F (-8°C) | 0.4 in | Driest |
| February | 19°F (-7°C) | 0.4 in | |
| March | 31°F (-1°C) | 1.1 in | |
| April | 45°F (7°C) | 2.1 in | |
| May | 58°F (14°C) | 2.6 in | |
| June | 67°F (19°C) | 3.1 in | Wettest |
| July | 75°F (24°C) | 2.2 in | Warmest |
| August | 71°F (22°C) | 1.9 in | |
| September | 60°F (16°C) | 1.4 in | |
| October | 47°F (8°C) | 1.1 in | |
| November | 29°F (-2°C) | 0.6 in | |
| December | 16°F (-9°C) | 0.4 in | Coldest |
Glenham has a seasonal temperature swing of 58°F / from 16°F in December to 75°F in July. Total annual precipitation is 17.1 inches, with June being the wettest month (3.1") and January the driest (0.4").