Dedham, IA
Full City Profile · Iowa · Audubon County County
3.9
/5.0
B+
Good
262
Population
476/sq mi density
$87,083
Median Income
$30,550 per capita
$132,400
Home Value
$206,226 Zillow
48°F
Avg Temperature
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$87,083 median income, 1.4% unemployment
A+
Affordability
5.0 / 5.0
$132,400 home value, /mo rent
C+
Education
2.5 / 5.0
18.8% bachelor's degree or higher
Dedham experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 19°F in January while summers reach 74°F in July. Annual precipitation totals 33.7 inches. The area receives 31.7 inches of snow annually.
Temperature
19°F Jan (-7°C)
74°F Jul (23°C)
| Annual Average | 48.3°F |
| 11% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 74°F (23°C) |
Geography
| Elevation | 1,270 ft (387 m) |
| Area | 0.6 sq mi (1.5 km²) |
| Population Density | 476/sq mi |
| Coordinates | 41.9084°N, 94.8233°W |
| Timezone | America/Chicago |
| County | Audubon County County |
| Nearest Airport | Fort Dodge Regional (FOD) 55 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 38.6 / 100 |
| Social Vulnerability | 48.2 / 100 |
| Community Resilience | 90.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively High |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 0.9 in | Coldest, Driest |
| February | 24°F (-5°C) | 1.1 in | |
| March | 36°F (2°C) | 1.9 in | |
| April | 48°F (9°C) | 3.4 in | |
| May | 60°F (16°C) | 4.5 in | |
| June | 71°F (22°C) | 5.1 in | Wettest |
| July | 74°F (23°C) | 4.4 in | Warmest |
| August | 72°F (22°C) | 4.1 in | |
| September | 64°F (18°C) | 3.0 in | |
| October | 51°F (11°C) | 2.7 in | |
| November | 37°F (3°C) | 1.4 in | |
| December | 25°F (-4°C) | 1.4 in |
Dedham has a seasonal temperature swing of 55°F / from 19°F in January to 74°F in July. Total annual precipitation is 33.7 inches, with June being the wettest month (5.1") and January the driest (0.9").