All Countries
Groton, SD
Full City Profile · South Dakota · Brown County County
4.4
/5.0
A
Great
1,794
Population
1,025/sq mi density
$82,083
Median Income
$38,361 per capita
$173,000
Home Value
$241,049 Zillow
$954
Median Rent
26.3% income on rent
44°F
Avg Temperature
276 sunny days/yr
A
Overall
4.4 / 5.0
Strong
A+
Economy
4.6 / 5.0
$82,083 median income, 0.5% unemployment
A+
Affordability
5.0 / 5.0
$173,000 home value, $954/mo rent
B
Education
3.5 / 5.0
31.2% bachelor's degree or higher
Groton 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. The area gets 276 sunny days per year. Annual precipitation totals 21.8 inches. The area receives 42.7 inches of snow annually. Air quality is rated Good with a median AQI of 35.
Temperature
13°F Jan (-11°C)
72°F Jul (22°C)
| Annual Average | 44.1°F |
| 18% below US avg | |
| January Average | 13°F (-11°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 276 days/yr |
Geography
| Elevation | 1,303 ft (397 m) |
| Area | 1.8 sq mi (4.5 km²) |
| Population Density | 1,025/sq mi |
| Coordinates | 45.4517°N, 98.1001°W |
| Timezone | America/Chicago |
| County | Brown County County |
| Nearest Airport | Aberdeen Regional (ABR) 16 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 35.0 |
| Rating | Good |
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 | 13°F (-11°C) | 0.4 in | Coldest, Driest |
| February | 18°F (-8°C) | 0.5 in | |
| March | 30°F (-1°C) | 1.1 in | |
| April | 45°F (7°C) | 1.9 in | |
| May | 58°F (15°C) | 2.6 in | |
| June | 67°F (20°C) | 3.4 in | Wettest |
| July | 72°F (22°C) | 2.8 in | Warmest |
| August | 70°F (21°C) | 2.4 in | |
| September | 60°F (16°C) | 1.8 in | |
| October | 47°F (8°C) | 1.4 in | |
| November | 29°F (-2°C) | 0.7 in | |
| December | 16°F (-9°C) | 0.4 in |
Groton has a seasonal temperature swing of 60°F / from 13°F in January to 72°F in July. Total annual precipitation is 19.4 inches, with June being the wettest month (3.4") and January the driest (0.4").