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Dane County, Wisconsin

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

Relatively Moderate overall risk
2nd of 72highest risk in Wisconsin
$182Mexpected losses a year
17federal declarations
1 in 250homes with flood insurance
Photo: Dori, CC BY 2.5

Dane County, Wisconsin has a moderate overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 94% of US counties. It ranks 2nd of 72 counties in Wisconsin. The costliest hazards here are inland flooding, cold waves and tornadoes. FEMA estimates about $182 million a year in expected losses, or roughly $324 per resident. Since 1976 it has been included in 17 federal disaster or emergency declarations for natural events (13 major disasters). The most recent was in October 2018 (severe storms, tornadoes, straight-line winds, flooding and landslides). Fewer than 1 in 100 homes here carry federal flood insurance (713 policies). Since 1978, federal flood insurance has paid about $8.7 million on 333 claims here, including $5.1 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 Dane County

$84 million a yearExpected losses. Damaging events about 2 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.

Cold wave

Very High
$44.1 million a yearExpected losses. Damaging events about 6 times a year.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.
$25.9 million a yearExpected losses. Damaging events about once a year.
  • 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
Inland floodingHigh94.3
$84M
Cold waveVery High99.0
$44M
TornadoHigh97.6
$26M
HailHigh98.9
$13M
Heat waveModerate95.3
$8M
Strong windHigh92.5
$3M
LightningHigh90.4
$2M
EarthquakeLow70.7
$1M
Winter weatherHigh93.6
$710K
Ice stormHigh83.4
$680K
WildfireVery Low60.2
$105K
DroughtLow39.9
$81K
LandslideModerate89.4
$67K
HurricaneVery Low29.2
$17K

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 very low and community resilience is very high in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

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

By type

Severe Storm8
Snowstorm3
Flood2
Tornado2
Drought1
Hurricane1

Most recent

Oct 18, 2018Severe Storms, Tornadoes, Straight-Line Winds, Flooding, and LandslidesMajor disaster
Apr 5, 2011Severe Winter Storm and SnowstormMajor disaster
Jun 14, 2008Severe Storms, Tornadoes, and FloodingMajor disaster
Mar 19, 2008Record Snow and Near Record SnowEmergency
Aug 26, 2007Severe Storms and FloodingMajor disaster
Sep 13, 2005Hurricane Katrina EvacuationEmergency
Jun 18, 2004Severe Storms and FloodingMajor disaster
Jan 24, 2001SnowEmergency
Jun 24, 2000Severe Storms, Tornadoes, and FloodingMajor disaster
Jul 2, 1993Severe Storms, Tornadoes & FloodingMajor disaster
Show all 17
Sep 18, 1992Severe Storms & TornadoesMajor disaster
Aug 6, 1991Severe Storms & HailMajor disaster
Jul 13, 1990Severe Storms, Tornadoes & FloodingMajor disaster
Jun 12, 1984Severe Storms & TornadoesMajor disaster
Jul 7, 1978Severe Storms, Flooding, Hail & TornadoesMajor disaster
Jun 17, 1976DroughtEmergency
Mar 23, 1976Severe Storms, Icing, Wind & FloodingMajor disaster

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

Storm history since 1955

Tornado risk by county ›

The National Weather Service has logged 1,286 storm reports in Dane County since 1955, with 9 deaths and 80 injuries and about $343 million in reported damage. The strongest on record here was an F3 tornado on August 2, 1967.

76tornadoes
555hail reports, largest 4 inches
490damaging thunderstorm winds
80floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Aug 2, 1967F3–5 / 2
Aug 18, 2005F3Fitchburg23 / 1
Jun 17, 1992F3–30 / 0
Jun 16, 2014EF3Verona0 / 0
Jun 4, 1975F3–0 / 0

Most damaging storms

DateTypeNearDamage
Jun 12, 2008Flash FloodCamp Randall Stadium$78M
Aug 18, 2005TornadoFitchburg$35M
Aug 20, 2018FloodWaunakee$33M
Jun 17, 1992Tornado–$25M
Jun 16, 2014TornadoVerona$14M
Aug 18, 2007Flash FloodMazomanie$12M

Source: NOAA Storm Events Database, county-based reports through Jul 2, 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 Dane County

Check your address flood zone ›
0.4%of homes have federal flood insurance (713 policies)
17.3%of homes in mapped high-risk flood zones are insured
$8.7 millionpaid on 333 flood claims since 1978
2018costliest year, with $5.1 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 Dane County

$394,800median home value (Wisconsin $266,500, US $332,700)
1986median year homes were built (Wisconsin 1975, US 1980)
43%of homes built before 1980, before many modern wind, quake and flood building rules
0.8%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; 261,061 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
Rock CountyModerate14
Dodge CountyLow11
Jefferson CountyLow12
Sauk CountyLow13
Columbia CountyModerate9
Green CountyLow15
Iowa CountyVery Low15

Common questions about Dane County

What is the biggest natural hazard in Dane County?

Inland flooding has the highest expected yearly losses in Dane County, about $84 million a year in FEMA's estimate. Cold wave is second at $44.1 million.

How many federal disasters has Dane County had?

Dane County has been included in 17 federal disaster or emergency declarations for natural events since 1976, including 13 major disasters. The most recent was Severe Storms, Tornadoes, Straight-Line Winds, Flooding, and Landslides in October 2018.

Is Dane County a high-risk place to live?

Its overall rating is Relatively Moderate, 2nd 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 Dane County?

Standard home insurance does not cover flooding. About 1 in 250 homes in Dane 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 Dane County had?

NOAA records list 76 tornadoes in Dane County since 1950. The strongest was an F3 tornado on August 2, 1967. The weather service has also logged 555 hail reports and 80 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.