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Decorah, IA
Full City Profile · Iowa · Winneshiek County County
3.6
/5.0
B+
Good
7,597
Population
1,049/sq mi density
$62,177
Median Income
$34,046 per capita
$234,600
Home Value
$298,078 Zillow
$788
Median Rent
26.9% income on rent
49°F
Avg Temperature
260 sunny days/yr
120
Violent Crime/100K
983 property/100K
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.2 / 5.0
$62,177 median income, 2.5% unemployment
A+
Affordability
4.6 / 5.0
$234,600 home value, $788/mo rent
F
Safety
1.0 / 5.0
120 violent crimes/100K
A+
Education
4.7 / 5.0
46.1% bachelor's degree or higher
Decorah experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 19°F in January while summers reach 74°F in July. The area gets 260 sunny days per year. Annual precipitation totals 37.6 inches. The area receives 37.5 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
19°F Jan (-7°C)
74°F Jul (23°C)
| Annual Average | 48.5°F |
| 10% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 869 ft (265 m) |
| Area | 7.0 sq mi (18.2 km²) |
| Population Density | 1,049/sq mi |
| Coordinates | 43.3016°N, 91.7848°W |
| Timezone | America/Chicago |
| County | Winneshiek County County |
| Nearest Airport | Northeast Iowa Regional (CCY) 45 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 36.2 / 100 |
| Social Vulnerability | 12.2 / 100 |
| Community Resilience | 91.6 / 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 | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 0.8 in | Coldest, Driest |
| February | 21°F (-6°C) | 0.9 in | |
| March | 33°F (0°C) | 2.0 in | |
| April | 46°F (8°C) | 3.4 in | |
| May | 58°F (15°C) | 3.9 in | |
| June | 68°F (20°C) | 4.3 in | Wettest |
| July | 74°F (23°C) | 4.0 in | Warmest |
| August | 69°F (21°C) | 4.2 in | |
| September | 61°F (16°C) | 3.8 in | |
| October | 49°F (10°C) | 2.4 in | |
| November | 34°F (1°C) | 1.8 in | |
| December | 20°F (-7°C) | 1.3 in |
Decorah has a seasonal temperature swing of 55°F / from 19°F in January to 74°F in July. Total annual precipitation is 32.8 inches, with June being the wettest month (4.3") and January the driest (0.8").