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Lake Geneva, WI

Full City Profile · Wisconsin · Walworth County County

3.4 /5.0
B Good
8,443 Population 1,231/sq mi density
$73,199 Median Income $46,359 per capita
$323,000 Home Value $403,760 Zillow
$1,250 Median Rent 28.0% income on rent
49°F Avg Temperature 260 sunny days/yr
112 Violent Crime/100K 1,837 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$73,199 median income, 3.2% unemployment
A
Affordability
4.2 / 5.0
$323,000 home value, $1,250/mo rent
F
Safety
1.0 / 5.0
112 violent crimes/100K
A
Education
4.5 / 5.0
43.2% bachelor's degree or higher
Lake Geneva experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 23°F in January while summers reach 74°F in July. The area gets 260 sunny days per year. Annual precipitation totals 37.0 inches. The area receives 40.1 inches of snow annually. Air quality is rated Good with a median AQI of 38.

Temperature

23°F Jan (-5°C) 74°F Jul (24°C)
Annual Average49.4°F
9% below US avg
January Average23°F (-5°C)
July Average74°F (24°C)
Sunny Days260 days/yr

Geography

Elevation944 ft (288 m)
Area6.6 sq mi (17.0 km²)
Population Density1,231/sq mi
Coordinates42.5833°N, 88.4285°W
TimezoneAmerica/Chicago
CountyWalworth County County
Nearest AirportKenosha Regional (ENW)
26 miles away

Precipitation & Snow

Annual Rainfall 37.0"
3% below US avg
Snowfall 40.1"
Wettest Month (Jul) 4.21"
Driest Month (Feb) 1.30"

Air Quality

AQI Median38.0
RatingGood

Air Pollutants (EPA 2023)

Ozone (O₃)0.0501 ppm

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score74.8 / 100
Social Vulnerability20.8 / 100
Community Resilience80.3 / 100

Hazard Breakdown

Tornado Relatively Moderate
Hurricane Very Low
Earthquake Very Low
Wildfire Very Low
Flood Relatively Moderate
Hail Relatively High
Strong Wind Relatively Moderate
Heat Wave Relatively Low
Winter Weather Relatively Low
Lightning Relatively Moderate
Ice Storm Relatively Low
Drought Relatively Low
Cold Wave Relatively Moderate
Landslide Relatively Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

7 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.2. Most recent: M3.1 on Jul 15, 2024.

Jun 28, 2004 12 km NW of Dayton, Illinois M4.2 131 km
Feb 10, 2010 2 km NW of Lily Lake, Illinois M3.8 69 km
Sep 2, 1999 8 km W of Amboy, Illinois M3.5 127 km
Nov 4, 2013 1 km SSW of Lyons, Illinois M3.2 100 km
Jul 15, 2024 2 km WNW of Somonauk, Illinois M3.1 107 km
Mar 25, 2015 3 km WNW of Lake in the Hills, Illinois M2.9 44 km
Jun 10, 2013 4 km NNE of Virgil, Illinois M2.6 66 km
Source: USGS (M2.5+, 1990–2025)

Tornado History

528 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 46 fatalities, 1,411 injuries.

Date Rating Distance Fatalities
Apr 27, 1984 EF4 44 km 1
Apr 4, 1981 EF4 96 km 3
Sep 28, 1972 EF4 57 km 0
Apr 21, 1967 EF4 57 km 24
Apr 21, 1967 EF4 50 km 1
Apr 11, 1965 EF4 41 km 6
Aug 22, 1964 EF4 98 km 0
Jun 20, 2021 EF3 95 km 0
Jan 7, 2008 EF3 9 km 0
Jan 7, 2008 EF3 39 km 0
Aug 18, 2005 EF3 90 km 1
Jun 17, 1992 EF3 96 km 0
Jun 5, 1980 EF3 67 km 0
Jun 4, 1975 EF3 97 km 0
Jan 24, 1967 EF3 77 km 0
Jul 19, 1963 EF3 15 km 0
Jun 22, 2024 EF2 56 km 0
Feb 8, 2024 EF2 76 km 0
Jun 16, 2014 EF2 100 km 0
Nov 22, 2010 EF2 53 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

3 wildfires (100+ acres) within 100 km. Largest: IBSP SOUTH F1 RX (690 ac, 2024).

Year Name Acres Distance
2024 IBSP SOUTH F1 RX 690 54 km
2024 RX-HWY Y - SOUTH 553 50 km
2009 COLD SPRINGS 552 99 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 23°F (-5°C) 1.6 in Coldest
February 24°F (-5°C) 1.3 in Driest
March 34°F (1°C) 2.6 in
April 46°F (8°C) 3.5 in
May 58°F (14°C) 3.3 in
June 67°F (20°C) 3.9 in
July 74°F (24°C) 4.2 in Warmest, Wettest
August 70°F (21°C) 4.0 in
September 62°F (17°C) 3.9 in
October 50°F (10°C) 2.6 in
November 37°F (3°C) 2.6 in
December 25°F (-4°C) 2.1 in

Lake Geneva has a seasonal temperature swing of 52°F / from 23°F in January to 74°F in July. Total annual precipitation is 35.7 inches, with July being the wettest month (4.2") and February the driest (1.3").

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