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Harpers Ferry, IA
Full City Profile · Iowa · Allamakee County County
3.2
/5.0
B
Good
210
Population
328/sq mi density
$37,813
Median Income
$35,426 per capita
$165,100
Home Value
$280,371 Zillow
$700
Median Rent
23.8% income on rent
47°F
Avg Temperature
260 sunny days/yr
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.6 / 5.0
$37,813 median income, 0.5% unemployment
A
Affordability
4.2 / 5.0
$165,100 home value, $700/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
C
Education
2.5 / 5.0
18.6% bachelor's degree or higher
Harpers Ferry 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 36.5 inches. The area receives 35.5 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 | 47.4°F |
| 12% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 651 ft (198 m) |
| Area | 0.7 sq mi (1.7 km²) |
| Population Density | 328/sq mi |
| Coordinates | 43.2008°N, 91.1522°W |
| Timezone | America/Chicago |
| County | Allamakee County County |
| Nearest Airport | La Crosse Regional (LSE) 47 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 38.2 / 100 |
| Social Vulnerability | 55.9 / 100 |
| Community Resilience | 40.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 18°F (-8°C) | 1.1 in | Coldest, Driest |
| February | 22°F (-6°C) | 1.1 in | |
| March | 34°F (1°C) | 2.0 in | |
| April | 47°F (8°C) | 3.2 in | |
| May | 59°F (15°C) | 3.3 in | |
| June | 68°F (20°C) | 4.0 in | Wettest |
| July | 73°F (23°C) | 3.5 in | Warmest |
| August | 70°F (21°C) | 4.0 in | |
| September | 62°F (17°C) | 3.5 in | |
| October | 50°F (10°C) | 2.2 in | |
| November | 35°F (2°C) | 2.3 in | |
| December | 22°F (-6°C) | 1.6 in |
Harpers Ferry has a seasonal temperature swing of 55°F / from 18°F in January to 73°F in July. Total annual precipitation is 31.9 inches, with June being the wettest month (4.0") and January the driest (1.1").