Home › Wisconsin › Vernon County

Vernon County, Wisconsin

Natural disaster risk, federal disaster history and flood insurance facts.

Relatively Low overall risk
19th of 72highest risk in Wisconsin
$25Mexpected losses a year
21federal declarations
1 in 333homes with flood insurance
Photo: Bold Frontiers, CC BY 2.0

Vernon County, Wisconsin has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 75% of US counties. It ranks 19th of 72 counties in Wisconsin. The costliest hazards here are cold waves, inland flooding and tornadoes. FEMA estimates about $25 million a year in expected losses, or roughly $829 per resident. Since 1965 it has been included in 21 federal disaster or emergency declarations for natural events (19 major disasters). The most recent was in June 2026 (severe storms, tornadoes and flooding). Only 39 homes here carry federal flood insurance. Since 1978, federal flood insurance has paid about $4.3 million on 178 claims here, including $2.2 million for floods in 2018.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Vernon County

$10 million a yearExpected losses. Damaging events about 7 times a year.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.
$9.8 million a yearExpected losses. Damaging events about 3 times a year.
  • Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
  • Price a flood policy now. Most new federal policies take 30 days to start.

Tornado

Moderate
$1.8 million a yearExpected losses. Damaging events about once every 3 years.
  • Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
  • Turn on emergency alerts on your phone and keep a weather radio.
HazardRatingScoreExpected loss a year
Cold waveHigh96.0
$10M
Inland floodingLow70.2
$10M
TornadoModerate69.4
$2M
HailModerate87.3
$1M
LandslideHigh99.0
$992K
Strong windModerate75.6
$843K
Heat waveLow66.9
$587K
LightningLow32.7
$90K
DroughtLow43.7
$69K
Ice stormLow48.4
$59K
Winter weatherLow36.0
$28K
EarthquakeVery Low13.2
$10K
WildfireVery Low17.2
$5K
HurricaneVery Low9.6
$1K

Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is relatively high and community resilience is relatively high in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Vernon County. 2020s bar runs to November 2026.

By type

Severe Storm10
Flood8
Tornado1
Drought1
Hurricane1

Most recent

Jun 30, 2026Severe Storms, Tornadoes, and FloodingMajor disaster
Aug 27, 2019Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Oct 18, 2018Severe Storms, Tornadoes, Straight-Line Winds, Flooding, and LandslidesMajor disaster
Oct 7, 2017Severe Storms, Straight-Line Winds, Flooding, Landslides, and MudMajor disaster
Oct 20, 2016Severe Storms, Flooding, and MudslidesMajor disaster
Aug 8, 2013Severe Storms, Flooding, and MudslidesMajor disaster
Jun 14, 2008Severe Storms, Tornadoes, and FloodingMajor disaster
Aug 26, 2007Severe Storms and FloodingMajor disaster
Sep 13, 2005Hurricane Katrina EvacuationEmergency
Jun 18, 2004Severe Storms and FloodingMajor disaster
Show all 21
May 11, 2001Flooding, Severe Storms and TornadoesMajor disaster
Jun 24, 2000Severe Storms, Tornadoes, and FloodingMajor disaster
Jul 24, 1998Severe Storms,Straigh Line Winds, Tornadoes,Rain,And FloodiMajor disaster
Jul 2, 1993Severe Storms, Tornadoes & FloodingMajor disaster
Sep 30, 1992Severe Storms & FloodingMajor disaster
Jul 13, 1990Severe Storms, Tornadoes & FloodingMajor disaster
Jul 7, 1978Severe Storms, Flooding, Hail & TornadoesMajor disaster
Jun 17, 1976DroughtEmergency
Mar 23, 1976Severe Storms, Icing, Wind & FloodingMajor disaster
May 1, 1969FloodingMajor disaster
Apr 21, 1965Tornadoes, Severe Storms & FloodingMajor disaster

Wisconsin also had 8 statewide declarations that did not name single counties.

Storm history since 1957

Tornado risk by county ›

The National Weather Service has logged 585 storm reports in Vernon County since 1957, with 5 deaths and 6 injuries and about $153 million in reported damage. The strongest on record here was an F3 tornado on June 5, 1980.

25tornadoes
151hail reports, largest 2.75 inches
217damaging thunderstorm winds
151floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Jun 5, 1980F3–1 / 0
Apr 14, 2026EF3Hillsboro Kckapoo Ar0 / 0
Aug 18, 2005F2Liberty0 / 0
May 8, 1964F2–0 / 0
Apr 19, 1966F2–0 / 0

Most damaging storms

DateTypeNearDamage
Aug 18, 2007Flash FloodStoddard$29M
Aug 27, 2018Flash FloodVictory$29M
Apr 14, 2026HailEaston$27M
Sep 22, 2016Flash FloodViroqua Muni Arpt$9M
Aug 28, 2018FloodKickapoo Center$7M
Aug 28, 2018FloodReadstown$5M

Source: NOAA Storm Events Database, county-based reports through Jul 1, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.

Flood insurance in Vernon County

Check your address flood zone ›
0.3%of homes have federal flood insurance (39 policies)
9.6%of homes in mapped high-risk flood zones are insured
$4.3 millionpaid on 178 flood claims since 1978
2018costliest year, with $2.2 million paid

National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.

Homes in Vernon County

$223,800median home value (Wisconsin $266,500, US $332,700)
1974median year homes were built (Wisconsin 1975, US 1980)
58%of homes built before 1980, before many modern wind, quake and flood building rules
9.4%of homes are mobile homes, which are the least safe in tornadoes and high winds

Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 14,065 housing units.

Compare in Wisconsin

All 72 ›
Largest countiesOverall riskTop hazard
Milwaukee CountyHighCold wave
Dane CountyModerateInland flooding
Waukesha CountyModerateInland flooding
Brown CountyModerateInland flooding
Racine CountyModerateInland flooding
Outagamie CountyLowInland flooding
Winnebago CountyModerateInland flooding
Kenosha CountyModerateCold wave

Neighboring counties

CountyOverall riskDeclarations
La Crosse CountyLow16
Sauk CountyLow13
Monroe CountyLow13
Juneau CountyLow14
Houston County, MNVery Low19
Richland CountyLow17
Crawford CountyLow20
Allamakee County, IAVery Low20

Common questions about Vernon County

What is the biggest natural hazard in Vernon County?

Cold wave has the highest expected yearly losses in Vernon County, about $10 million a year in FEMA's estimate. Inland flooding is second at $9.8 million.

How many federal disasters has Vernon County had?

Vernon County has been included in 21 federal disaster or emergency declarations for natural events since 1965, including 19 major disasters. The most recent was Severe Storms, Tornadoes, and Flooding in June 2026.

Is Vernon County a high-risk place to live?

Its overall rating is Relatively Low, 19th highest of 72 in Wisconsin. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.

Do I need flood insurance in Vernon County?

Standard home insurance does not cover flooding. About 1 in 333 homes in Vernon County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.

How many tornadoes has Vernon County had?

NOAA records list 25 tornadoes in Vernon County since 1950. The strongest was an F3 tornado on June 5, 1980. The weather service has also logged 151 hail reports and 151 floods here.

Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.