Dekorra, WI
Full City Profile · Wisconsin · Columbia County County
4.3
/5.0
A
Great
137
Population
113/sq mi density
$97,250
Median Income
$94,701 per capita
$239,600
Home Value
$390,764 Zillow
47°F
Avg Temperature
A
Overall
4.3 / 5.0
Strong
A+
Economy
4.9 / 5.0
$97,250 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$239,600 home value, /mo rent
B
Education
3.1 / 5.0
26.5% bachelor's degree or higher
Dekorra experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 18°F in January while summers reach 72°F in July. Annual precipitation totals 38.3 inches. The area receives 39.3 inches of snow annually. Air quality is rated Good with a median AQI of 38.
Temperature
18°F Jan (-8°C)
72°F Jul (22°C)
| Annual Average | 46.5°F |
| 14% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 72°F (22°C) |
Geography
| Elevation | 866 ft (264 m) |
| Area | 1.2 sq mi (3.1 km²) |
| Population Density | 113/sq mi |
| Coordinates | 43.4539°N, 89.4603°W |
| Timezone | America/Chicago |
| County | Columbia County County |
| Nearest Airport | Dane County Regional/Truax Field (MSN) 23 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
| Good Days % | 91.6% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0501 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 81.4 / 100 |
| Social Vulnerability | 24.0 / 100 |
| Community Resilience | 91.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very High |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| 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) | 1.4 in | Coldest |
| February | 22°F (-6°C) | 1.4 in | Driest |
| March | 33°F (1°C) | 2.2 in | |
| April | 46°F (8°C) | 4.2 in | |
| May | 58°F (14°C) | 4.6 in | |
| June | 68°F (20°C) | 5.6 in | Wettest |
| July | 72°F (22°C) | 4.5 in | Warmest |
| August | 70°F (21°C) | 4.1 in | |
| September | 62°F (16°C) | 3.6 in | |
| October | 49°F (10°C) | 2.9 in | |
| November | 36°F (2°C) | 2.2 in | |
| December | 24°F (-4°C) | 1.7 in |
Dekorra has a seasonal temperature swing of 54°F / from 18°F in January to 72°F in July. Total annual precipitation is 38.3 inches, with June being the wettest month (5.6") and February the driest (1.4").