Harpers Ferry, IA
Full City Profile · Iowa · Allamakee County County
3.4
/5.0
B
Good
210
Population
328/sq mi density
$37,813
Median Income
$35,426 per capita
$165,100
Home Value
$306,499 Zillow
$700
Median Rent
23.8% income on rent
47°F
Avg Temperature
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.6 / 5.0
$37,813 median income, 1.1% unemployment
A
Affordability
4.2 / 5.0
$165,100 home value, $700/mo rent
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. Annual precipitation totals 36.5 inches. The area receives 35.5 inches of snow annually.
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) |
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
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) | 1.3 in | Coldest |
| February | 22°F (-5°C) | 1.2 in | Driest |
| March | 35°F (1°C) | 2.0 in | |
| April | 48°F (9°C) | 3.8 in | |
| May | 59°F (15°C) | 4.7 in | |
| June | 69°F (21°C) | 5.5 in | Wettest |
| July | 73°F (23°C) | 4.5 in | Warmest |
| August | 71°F (22°C) | 3.8 in | |
| September | 63°F (17°C) | 3.8 in | |
| October | 51°F (10°C) | 2.5 in | |
| November | 37°F (3°C) | 2.0 in | |
| December | 24°F (-4°C) | 1.5 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 36.5 inches, with June being the wettest month (5.5") and February the driest (1.2").