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Dellwood, WI
Full City Profile · Wisconsin · Adams County County
2.7
/5.0
C+
Fair
572
Population
110/sq mi density
$38,625
Median Income
$30,820 per capita
$160,400
Home Value
$233,979 Zillow
45°F
Avg Temperature
260 sunny days/yr
403
Violent Crime/100K
2,263 property/100K
C+
Overall
2.7 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.6 / 5.0
$38,625 median income, 0.0% unemployment
A
Affordability
4.3 / 5.0
$160,400 home value, /mo rent
F
Safety
1.0 / 5.0
403 violent crimes/100K (6% above avg)
D
Education
1.8 / 5.0
10.3% bachelor's degree or higher
Dellwood has a cool climate with an average annual temperature of 45°F (7°C). Winters average 16°F in January while summers reach 71°F in July. The area gets 260 sunny days per year. Annual precipitation totals 35.1 inches. The area receives 52.0 inches of snow annually. Air quality is rated Good with a median AQI of 38.
Temperature
16°F Jan (-9°C)
71°F Jul (22°C)
| Annual Average | 45.0°F |
| 17% below US avg | |
| January Average | 16°F (-9°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 909 ft (277 m) |
| Area | 5.3 sq mi (13.8 km²) |
| Population Density | 110/sq mi |
| Coordinates | 43.9451°N, 89.9280°W |
| Timezone | America/Chicago |
| County | Adams County County |
| Nearest Airport | Tri-County Regional (LNR) 52 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 70.9 / 100 |
| Social Vulnerability | 86.5 / 100 |
| Community Resilience | 21.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 16°F (-9°C) | 0.9 in | Coldest, Driest |
| February | 20°F (-7°C) | 1.0 in | |
| March | 31°F (-0°C) | 2.1 in | |
| April | 45°F (7°C) | 3.0 in | |
| May | 57°F (14°C) | 3.5 in | |
| June | 66°F (19°C) | 3.7 in | |
| July | 71°F (22°C) | 3.8 in | Warmest |
| August | 68°F (20°C) | 4.1 in | |
| September | 60°F (16°C) | 4.1 in | Wettest |
| October | 49°F (9°C) | 2.4 in | |
| November | 34°F (1°C) | 2.1 in | |
| December | 21°F (-6°C) | 1.3 in |
Dellwood has a seasonal temperature swing of 55°F / from 16°F in January to 71°F in July. Total annual precipitation is 32.0 inches, with September being the wettest month (4.1") and January the driest (0.9").