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Duncombe, IA
Full City Profile · Iowa · Hamilton County County
2.9
/5.0
C+
Fair
382
Population
195/sq mi density
$63,125
Median Income
$32,555 per capita
$108,200
Home Value
$174,984 Zillow
$542
Median Rent
13.5% income on rent
46°F
Avg Temperature
260 sunny days/yr
319
Violent Crime/100K
1,838 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$63,125 median income, 4.8% unemployment
A+
Affordability
5.0 / 5.0
$108,200 home value, $542/mo rent
F
Safety
1.0 / 5.0
319 violent crimes/100K
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. The area gets 260 sunny days per year. Annual precipitation totals 37.2 inches. The area receives 32.9 inches of snow annually. Air quality is rated Good with a median AQI of 43.
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) |
| Sunny Days | 260 days/yr |
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
| AQI Median | 43.0 |
| Rating | Good |
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) | 0.8 in | Coldest, Driest |
| February | 23°F (-5°C) | 0.8 in | |
| March | 35°F (2°C) | 1.9 in | |
| April | 48°F (9°C) | 3.0 in | |
| May | 60°F (16°C) | 3.9 in | |
| June | 70°F (21°C) | 4.8 in | Wettest |
| July | 72°F (22°C) | 4.3 in | Warmest |
| August | 71°F (22°C) | 4.1 in | |
| September | 63°F (17°C) | 3.4 in | |
| October | 51°F (11°C) | 2.4 in | |
| November | 35°F (2°C) | 1.5 in | |
| December | 22°F (-6°C) | 1.2 in |
Duncombe has a seasonal temperature swing of 55°F / from 17°F in January to 72°F in July. Total annual precipitation is 32.0 inches, with June being the wettest month (4.8") and January the driest (0.8").