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Lake Delton, WI
Full City Profile · Wisconsin · Sauk County County
2.9
/5.0
C+
Fair
3,522
Population
463/sq mi density
$42,386
Median Income
$31,498 per capita
$144,100
Home Value
$320,418 Zillow
$980
Median Rent
31.3% income on rent
46°F
Avg Temperature
260 sunny days/yr
799
Violent Crime/100K
15,241 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$42,386 median income, 3.7% unemployment
A+
Affordability
4.8 / 5.0
$144,100 home value, $980/mo rent
F
Safety
1.0 / 5.0
799 violent crimes/100K (110% above avg)
C
Education
2.4 / 5.0
16.9% bachelor's degree or higher
Lake Delton experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 17°F in January while summers reach 71°F in July. The area gets 260 sunny days per year. Annual precipitation totals 37.5 inches. The area receives 40.7 inches of snow annually. Air quality is rated Good with a median AQI of 38.
Temperature
17°F Jan (-8°C)
71°F Jul (22°C)
| Annual Average | 45.7°F |
| 15% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 907 ft (276 m) |
| Area | 7.6 sq mi (19.8 km²) |
| Population Density | 463/sq mi |
| Coordinates | 43.5920°N, 89.7831°W |
| Timezone | America/Chicago |
| County | Sauk County County |
| Nearest Airport | Tri-County Regional (LNR) 33 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0488 ppm |
| PM2.5 (Fine Particles) | 9.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 72.1 / 100 |
| Social Vulnerability | 21.9 / 100 |
| Community Resilience | 82.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| 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 Moderate |
| Landslide | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-8°C) | 1.0 in | Coldest, Driest |
| February | 21°F (-6°C) | 1.0 in | |
| March | 32°F (0°C) | 2.2 in | |
| April | 45°F (7°C) | 3.0 in | |
| May | 57°F (14°C) | 3.4 in | |
| June | 66°F (19°C) | 3.9 in | |
| July | 71°F (22°C) | 3.8 in | Warmest |
| August | 68°F (20°C) | 4.2 in | Wettest |
| September | 60°F (16°C) | 3.9 in | |
| October | 49°F (9°C) | 2.4 in | |
| November | 34°F (1°C) | 2.0 in | |
| December | 21°F (-6°C) | 1.4 in |
Lake Delton has a seasonal temperature swing of 54°F / from 17°F in January to 71°F in July. Total annual precipitation is 32.2 inches, with August being the wettest month (4.2") and January the driest (1.0").