Duncombe, IA
Full City Profile · Iowa · Hamilton County County
3.4
/5.0
B
Good
382
Population
195/sq mi density
$63,125
Median Income
$32,555 per capita
$108,200
Home Value
$189,289 Zillow
$542
Median Rent
13.5% income on rent
46°F
Avg Temperature
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$63,125 median income, 6.9% unemployment
A+
Affordability
5.0 / 5.0
$108,200 home value, $542/mo rent
D
Education
1.7 / 5.0
9.0% bachelor's degree or higher
Duncombe experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 17°F in January while summers reach 72°F in July. Annual precipitation totals 37.2 inches. The area receives 32.9 inches of snow annually.
Temperature
17°F Jan (-9°C)
72°F Jul (22°C)
| Annual Average | 46.1°F |
| 15% below US avg | |
| January Average | 17°F (-9°C) |
| July Average | 72°F (22°C) |
Geography
| Elevation | 1,109 ft (338 m) |
| Area | 2.0 sq mi (5.1 km²) |
| Population Density | 195/sq mi |
| Coordinates | 42.4698°N, 93.9968°W |
| Timezone | America/Chicago |
| County | Hamilton County County |
| Nearest Airport | Fort Dodge Regional (FOD) 11 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 42.9 / 100 |
| Social Vulnerability | 22.4 / 100 |
| Community Resilience | 71.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively High |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-9°C) | 0.9 in | Coldest, Driest |
| February | 21°F (-6°C) | 1.3 in | |
| March | 34°F (1°C) | 2.1 in | |
| April | 46°F (8°C) | 3.7 in | |
| May | 58°F (15°C) | 5.3 in | |
| June | 68°F (20°C) | 5.8 in | Wettest |
| July | 72°F (22°C) | 4.4 in | Warmest |
| August | 69°F (21°C) | 4.8 in | |
| September | 62°F (17°C) | 3.4 in | |
| October | 49°F (10°C) | 2.7 in | |
| November | 35°F (2°C) | 1.7 in | |
| December | 23°F (-5°C) | 1.4 in |
Duncombe has a seasonal temperature swing of 55°F / from 17°F in January to 72°F in July. Total annual precipitation is 37.2 inches, with June being the wettest month (5.8") and January the driest (0.9").