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Charter Oak, IA
Full City Profile · Iowa · Crawford County County
2.9
/5.0
C+
Fair
489
Population
959/sq mi density
$58,068
Median Income
$29,903 per capita
$81,600
Home Value
$183,883 Zillow
$710
Median Rent
22.7% income on rent
47°F
Avg Temperature
260 sunny days/yr
411
Violent Crime/100K
1,984 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.9 / 5.0
$58,068 median income, 0.7% unemployment
A+
Affordability
5.0 / 5.0
$81,600 home value, $710/mo rent
F
Safety
1.0 / 5.0
411 violent crimes/100K (8% above avg)
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. The area gets 260 sunny days per year. Annual precipitation totals 32.2 inches. The area receives 31.1 inches of snow annually. Air quality is rated Good with a median AQI of 43.
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) |
| Sunny Days | 260 days/yr |
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
| AQI Median | 43.0 |
| Rating | Good |
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) | 0.7 in | Coldest, Driest |
| February | 25°F (-4°C) | 0.8 in | |
| March | 36°F (2°C) | 2.1 in | |
| April | 49°F (10°C) | 2.8 in | |
| May | 61°F (16°C) | 4.2 in | |
| June | 71°F (21°C) | 4.4 in | Wettest |
| July | 73°F (23°C) | 3.5 in | Warmest |
| August | 72°F (22°C) | 3.7 in | |
| September | 64°F (18°C) | 3.4 in | |
| October | 52°F (11°C) | 2.4 in | |
| November | 35°F (2°C) | 1.3 in | |
| December | 23°F (-5°C) | 0.9 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 30.2 inches, with June being the wettest month (4.4") and January the driest (0.7").