Charter Oak, IA
Full City Profile · Iowa · Crawford County County
3.6
/5.0
B+
Good
489
Population
959/sq mi density
$58,068
Median Income
$29,903 per capita
$81,600
Home Value
$199,839 Zillow
$710
Median Rent
22.7% income on rent
47°F
Avg Temperature
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.9 / 5.0
$58,068 median income, 1.5% unemployment
A+
Affordability
5.0 / 5.0
$81,600 home value, $710/mo rent
D
Education
1.8 / 5.0
9.8% bachelor's degree or higher
Charter Oak experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 18°F in January while summers reach 73°F in July. Annual precipitation totals 32.2 inches. The area receives 31.1 inches of snow annually.
Temperature
18°F Jan (-8°C)
73°F Jul (23°C)
| Annual Average | 47.2°F |
| 13% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 73°F (23°C) |
Geography
| Elevation | 1,295 ft (395 m) |
| Area | 0.5 sq mi (1.2 km²) |
| Population Density | 959/sq mi |
| Coordinates | 42.0678°N, 95.5895°W |
| Timezone | America/Chicago |
| County | Crawford County County |
| Nearest Airport | Sioux Gateway/Brig General Bud Day Field (SUX) 47 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 60.9 / 100 |
| Social Vulnerability | 28.2 / 100 |
| Community Resilience | 23.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | No Rating |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively 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 | 18°F (-8°C) | 0.8 in | Coldest, Driest |
| February | 23°F (-5°C) | 0.9 in | |
| March | 35°F (2°C) | 1.8 in | |
| April | 47°F (8°C) | 3.4 in | |
| May | 59°F (15°C) | 4.8 in | Wettest |
| June | 69°F (21°C) | 4.6 in | |
| July | 73°F (23°C) | 4.2 in | Warmest |
| August | 70°F (21°C) | 3.8 in | |
| September | 63°F (17°C) | 3.1 in | |
| October | 50°F (10°C) | 2.3 in | |
| November | 35°F (2°C) | 1.5 in | |
| December | 23°F (-5°C) | 1.1 in |
Charter Oak has a seasonal temperature swing of 55°F / from 18°F in January to 73°F in July. Total annual precipitation is 32.2 inches, with May being the wettest month (4.8") and January the driest (0.8").