Andover, SD
Full City Profile · South Dakota · Day County County
2.8
/5.0
C+
Fair
36
Population
133/sq mi density
$49,200
Home Value
$241,049 Zillow
44°F
Avg Temperature
C+
Overall
2.8 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Education
2.8 / 5.0
21.9% bachelor's degree or higher
Andover has a cool climate with an average annual temperature of 44°F (7°C). Winters average 13°F in January while summers reach 72°F in July. Annual precipitation totals 24.0 inches. The area receives 32.3 inches of snow annually.
Temperature
13°F Jan (-11°C)
72°F Jul (22°C)
| Annual Average | 44.2°F |
| 18% below US avg | |
| January Average | 13°F (-11°C) |
| July Average | 72°F (22°C) |
Geography
| Elevation | 1,481 ft (451 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 133/sq mi |
| Coordinates | 45.4102°N, 97.9037°W |
| Timezone | America/Chicago |
| County | Day County County |
| Nearest Airport | Aberdeen Regional (ABR) 25 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 27.6 / 100 |
| Social Vulnerability | 74.7 / 100 |
| Community Resilience | 84.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Very Low |
| Ice Storm | Relatively Moderate |
| Drought | Very 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 | 13°F (-11°C) | 0.6 in | Coldest, Driest |
| February | 18°F (-8°C) | 0.6 in | |
| March | 31°F (-1°C) | 0.9 in | |
| April | 44°F (7°C) | 2.0 in | |
| May | 57°F (14°C) | 3.2 in | |
| June | 67°F (19°C) | 3.9 in | Wettest |
| July | 72°F (22°C) | 3.8 in | Warmest |
| August | 70°F (21°C) | 2.7 in | |
| September | 61°F (16°C) | 2.5 in | |
| October | 47°F (8°C) | 2.2 in | |
| November | 32°F (0°C) | 0.8 in | |
| December | 19°F (-7°C) | 0.8 in |
Andover has a seasonal temperature swing of 59°F / from 13°F in January to 72°F in July. Total annual precipitation is 24.0 inches, with June being the wettest month (3.9") and January the driest (0.6").