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Morristown, SD
Full City Profile · South Dakota · Corson County County
3.5
/5.0
B+
Good
58
Population
166/sq mi density
$37,917
Median Income
$32,790 per capita
$22,500
Home Value
$119,678 Zillow
44°F
Avg Temperature
311 sunny days/yr
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.0 / 5.0
$37,917 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$22,500 home value, /mo rent
C
Education
2.4 / 5.0
17.8% bachelor's degree or higher
Morristown has a cool climate with an average annual temperature of 44°F (7°C). Winters average 16°F in January while summers reach 70°F in July. The area gets 311 sunny days per year. Annual precipitation totals 16.5 inches. The area receives 51.2 inches of snow annually. Air quality is rated Good with a median AQI of 35.
Temperature
16°F Jan (-9°C)
70°F Jul (21°C)
| Annual Average | 43.5°F |
| 19% below US avg | |
| January Average | 16°F (-9°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 311 days/yr |
Geography
| Elevation | 2,249 ft (685 m) |
| Area | 0.4 sq mi (0.9 km²) |
| Population Density | 166/sq mi |
| Coordinates | 45.9386°N, 101.7188°W |
| Timezone | America/Chicago |
| County | Corson County County |
| Nearest Airport | Bismarck Municipal (BIS) 74 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 35.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 38.1 / 100 |
| Social Vulnerability | 91.2 / 100 |
| Community Resilience | 2.9 / 100 |
Hazard Breakdown
| Tornado | Very 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 | Relatively Low |
| 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 | 16°F (-9°C) | 0.3 in | Coldest, Driest |
| February | 21°F (-6°C) | 0.4 in | |
| March | 30°F (-1°C) | 0.8 in | |
| April | 44°F (6°C) | 1.9 in | |
| May | 56°F (13°C) | 2.8 in | |
| June | 65°F (19°C) | 3.2 in | Wettest |
| July | 70°F (21°C) | 2.2 in | Warmest |
| August | 70°F (21°C) | 1.7 in | |
| September | 60°F (15°C) | 1.4 in | |
| October | 47°F (8°C) | 0.9 in | |
| November | 31°F (-1°C) | 0.4 in | |
| December | 19°F (-7°C) | 0.4 in |
Morristown has a seasonal temperature swing of 55°F / from 16°F in January to 70°F in July. Total annual precipitation is 16.4 inches, with June being the wettest month (3.2") and January the driest (0.3").