County Hazards

States › Wisconsin › Vernon County

Vernon County, Wisconsin

Recorded hazard history: storm events since 1950, federal disaster declarations since 1953, flood insurance claims since 1978, and FEMA's risk index.

FIPS 55123 · 30,915 residents (2021) · 792 sq mi · dominant hazard Wind

Hail · 151Tornado · 25Flood · 155Wind · 222Winter · 101
1961-07-15: Hail1963-07-17: Hail1973-10-03: Hail1974-08-06: Hail1975-07-03: Hail1975-08-24: Hail1975-04-17: Hail1977-06-05: Hail1980-07-15: Hail1980-07-15: Hail1980-06-05: Hail1984-09-24: Hail1985-08-12: Hail1986-04-25: Hail1988-05-08: Hail1989-07-08: Hail1989-04-24: Hail1989-08-04: Hail1996-05-18: Hail1997-07-05: Hail1997-08-03: Hail1997-08-03: Hail1998-06-20: Hail1998-05-28: Hail1998-05-28: Hail1998-05-28: Hail1998-05-28: Hail1998-06-20: Hail1998-07-20: Hail1998-08-14: Hail1998-06-24: Hail1998-06-24: Hail1998-06-24: Hail1998-06-20: Hail2000-05-31: Hail2000-05-18: Hail2000-05-18: Hail2000-05-12: Hail2000-09-11: Hail2001-04-06: Hail2001-05-10: Hail2001-05-10: Hail2001-06-11: Hail2002-04-18: Hail2002-05-30: Hail2003-07-31: Hail2003-07-31: Hail2004-05-21: Hail2004-05-21: Hail2004-05-21: Hail2004-05-21: Hail2004-05-21: Hail2004-06-23: Hail2004-07-19: Hail2004-07-19: Hail2006-05-24: Hail2006-06-06: Hail2006-07-01: Hail2006-07-01: Hail2006-07-01: Hail2006-07-01: Hail2006-06-25: Hail2006-08-23: Hail2006-08-25: Hail2006-08-23: Hail2006-08-23: Hail2006-08-25: Hail2006-08-24: Hail2006-08-24: Hail2006-08-23: Hail2006-08-23: Hail2007-09-21: Hail2007-05-24: Hail2008-05-30: Hail2008-05-06: Hail2008-05-30: Hail2008-06-28: Hail2008-06-28: Hail2008-06-28: Hail2008-06-28: Hail2008-06-28: Hail2008-06-28: Hail2008-06-28: Hail2008-06-07: Hail2008-07-25: Hail2009-04-24: Hail2009-07-23: Hail2010-06-06: Hail2012-09-04: Hail2012-09-04: Hail2012-09-04: Hail2013-04-30: Hail2013-07-22: Hail2013-07-22: Hail2014-04-12: Hail2014-04-12: Hail2014-04-12: Hail2014-04-12: Hail2014-04-12: Hail2014-04-12: Hail2014-04-12: Hail2014-04-12: Hail2014-04-12: Hail2014-04-12: Hail2014-06-25: Hail2014-07-07: Hail2015-04-09: Hail2015-04-09: Hail2015-04-09: Hail2015-04-09: Hail2015-07-13: Hail2015-07-13: Hail2015-07-13: Hail2016-05-25: Hail2016-05-25: Hail2017-07-12: Hail2017-03-06: Hail2018-10-09: Hail1957-09-19: Tornado1964-05-08: Tornado1966-04-19: Tornado1967-03-31: Tornado1967-06-08: Tornado1968-08-06: Tornado1968-08-06: Tornado1978-07-01: Tornado1978-07-01: Tornado1978-07-01: Tornado1979-08-09: Tornado1980-06-05: Tornado1980-06-05: Tornado1992-04-20: Tornado1998-06-18: Tornado2000-07-26: Tornado2005-08-18: Tornado2005-08-18: Tornado2008-06-07: Tornado2016-07-05: Tornado2019-05-24: Tornado2019-07-18: Tornado2022-06-15: Tornado2025-06-26: Tornado2026-04-14: Tornado2007-08-18: Flood2007-08-19: Flood2007-08-19: Flood2007-08-19: Flood2007-08-19: Flood2007-08-27: Flood2007-08-27: Flood2007-08-21: Flood2008-06-08: Flood2008-06-08: Flood2008-06-07: Flood2008-06-08: Flood2008-06-08: Flood2008-06-08: Flood2008-07-16: Flood2008-06-08: Flood2008-06-07: Flood2008-06-07: Flood2008-06-08: Flood2008-06-08: Flood2008-06-07: Flood2010-06-23: Flood2010-06-23: Flood2010-06-23: Flood2010-08-09: Flood2010-08-09: Flood2010-08-13: Flood2010-08-13: Flood2010-08-13: Flood2010-08-13: Flood2010-08-13: Flood2010-08-14: Flood2010-08-13: Flood2010-07-14: Flood2010-07-15: Flood2010-07-16: Flood2010-07-15: Flood2010-09-23: Flood2010-09-23: Flood2010-09-23: Flood2010-07-07: Flood2010-05-25: Flood2010-09-24: Flood2011-03-23: Flood2011-03-22: Flood2011-06-19: Flood2011-06-18: Flood2011-06-19: Flood2011-06-19: Flood2011-06-19: Flood2011-06-19: Flood2011-06-19: Flood2012-07-18: Flood2013-06-21: Flood2013-06-21: Flood2013-06-22: Flood2013-06-22: Flood2013-04-10: Flood2013-04-10: Flood2013-04-10: Flood2014-03-27: Flood2014-03-28: Flood2014-06-01: Flood2014-06-01: Flood2014-06-01: Flood2014-03-28: Flood2014-04-14: Flood2014-06-01: Flood2014-06-01: Flood2014-06-01: Flood2015-12-14: Flood2015-12-14: Flood2015-12-15: Flood2016-09-07: Flood2016-09-07: Flood2016-09-22: Flood2016-09-07: Flood2016-09-07: Flood2016-09-22: Flood2016-09-22: Flood2016-09-22: Flood2016-09-22: Flood2016-09-22: Flood2016-09-09: Flood2017-07-20: Flood2017-07-20: Flood2017-07-20: Flood2017-07-20: Flood2017-07-20: Flood2017-07-12: Flood2017-07-20: Flood2018-04-14: Flood2018-05-03: Flood2018-05-02: Flood2018-09-03: Flood2018-09-03: Flood2018-09-03: Flood2018-09-04: Flood2018-09-03: Flood2018-09-04: Flood2018-09-03: Flood2018-09-03: Flood2018-08-28: Flood2018-08-27: Flood2018-08-28: Flood2018-08-27: Flood2026-06-24: Wind2025-09-22: Wind2025-08-09: Wind2025-07-28: Wind2025-07-28: Wind2025-06-23: Wind2024-09-21: Wind2024-07-13: Wind2024-07-13: Wind2024-05-21: Wind2024-05-21: Wind2024-05-21: Wind2023-08-11: Wind2023-08-11: Wind2022-07-23: Wind2022-07-23: Wind2022-07-23: Wind2022-07-23: Wind2022-07-23: Wind2022-07-23: Wind2022-06-15: Wind2022-06-15: Wind2021-12-15: Wind2021-12-15: Wind2021-12-15: Wind2021-08-27: Wind2020-06-02: Wind2020-06-02: Wind2020-06-02: Wind2020-06-02: Wind2020-06-02: Wind2019-06-27: Wind2018-08-28: Wind2018-06-30: Wind2017-07-19: Wind2017-07-19: Wind2017-07-19: Wind2017-07-19: Wind2017-07-19: Wind2017-07-12: Wind2017-07-12: Wind2017-06-16: Wind2017-06-16: Wind2017-06-16: Wind2017-06-16: Wind2017-06-14: Wind2017-06-14: Wind2017-05-17: Wind2017-05-17: Wind2017-05-17: Wind2017-05-17: Wind2017-05-17: Wind2017-03-06: Wind2017-03-06: Wind2017-03-06: Wind2017-03-06: Wind2017-03-06: Wind2017-03-06: Wind2016-07-05: Wind2016-06-30: Wind2016-06-30: Wind2016-05-25: Wind2016-05-25: Wind2016-05-25: Wind2016-05-01: Wind2014-06-16: Wind2014-06-16: Wind2013-07-22: Wind2013-06-21: Wind2013-05-30: Wind2013-05-29: Wind2013-05-19: Wind2012-09-05: Wind2012-09-04: Wind2012-09-04: Wind2012-08-02: Wind2012-08-02: Wind2011-09-02: Wind2011-09-02: Wind2011-09-02: Wind2011-09-02: Wind2011-04-10: Wind2010-08-31: Wind2010-07-14: Wind2010-07-14: Wind2010-07-14: Wind2010-07-14: Wind2010-07-14: Wind2010-06-23: Wind2009-07-27: Wind2008-07-10: Wind2008-07-10: Wind2008-07-10: Wind2008-07-10: Wind2008-05-30: Wind2008-05-30: Wind2007-09-21: Wind2007-09-21: Wind2007-09-21: Wind2007-08-21: Wind2007-08-21: Wind2007-08-21: Wind2007-08-21: Wind2007-08-21: Wind2007-08-14: Wind2007-08-14: Wind2007-08-13: Wind2007-07-03: Wind2007-05-23: Wind2006-07-20: Wind2006-07-01: Wind2006-07-01: Wind2005-09-13: Wind2005-09-13: Wind2005-07-25: Wind2005-07-25: Wind
Vernon County within Wisconsin. Dots: HailTornadoFloodWind event locations in the kept record. Boundaries: US Census Bureau.

NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. NCEI storm records through 30 Jun 2026; OpenFEMA declarations refreshed 1 Oct 2026; NFIP claims as of 8 Sep 2026.

Between 1950 and 2026, NCEI recorded 758 storm events in Vernon County, Wisconsin, led by damaging wind.

That is 95.8 events per 100 square miles, in line with the Wisconsin figure of 85.6, and 245.2 per 10,000 residents against 78.6 statewide.

23 events fall in the 12 months to 30 Jun 2026. NCEI attributes 13 deaths and 12 injuries to events in the county, with property damage estimated at $140M and crop damage at $15M.

FEMA has designated the county in 23 federal disaster declarations since 1953; the most recent is Severe Storms, Tornadoes, And Flooding (major disaster, 30 Jun 2026).

National Flood Insurance Program policyholders in the county filed 178 claims since 1978, of which 145 were paid, totalling $4.3M (about $29K per paid claim). FEMA counts 39 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Relatively Low" and its expected annual loss as "Relatively Low" ($25M a year across 18 hazards).

23events, last 12 monthsto 30 Jun 2026
758events since 195013 deaths, 12 injuries recorded
23disaster declarationslast 30 Jun 2026
178NFIP flood claims$4.3M paid

Compared with Wisconsin and the United States

MeasureVernon CountyWisconsinUS
Recorded events since 195075846,3621,977,440
Events per 100 square miles95.885.656.0
Events per 10,000 residents245.278.659.6
Events in the last 12 months231,62462,008
Deaths recorded by NCEI1353026,435
Property damage (NCEI estimates)$140M$4.1B$575B
NFIP claims per 1,000 residents5.81.68.1
Average paid NFIP claim$29K$20K$43K
Claims per 100 policies in force, last 10 years148.723.416.1

County-recorded events plus zone-recorded events whose forecast zone is named for the county. State and US rows include events recorded only by forecast zone. Rates use 2021 Census population and land area.

Events by decade

Tornado: 1
Hail: 2Tornado: 6Wind: 3
Hail: 6Tornado: 4Wind: 6
Hail: 10Tornado: 2Wind: 16
Hail: 18Tornado: 2Flood: 4Wind: 50Winter: 11Heat: 3Cold: 3Other: 2
Hail: 53Tornado: 4Flood: 31Wind: 54Winter: 35Heat: 2Cold: 6Other: 2
Hail: 33Tornado: 3Flood: 106Wind: 60Winter: 32Heat: 5Cold: 6Drought: 6Wildfire: 1Lightning: 4Fog: 2Other: 35
Hail: 29Tornado: 3Flood: 14Wind: 33Winter: 23Heat: 3Cold: 6Drought: 13Fog: 1Other: 4
11950s111960s161970s281980s931990s1872000s2932010s1292020s
Recorded events in Vernon County by decade and hazard group. HailTornadoFloodWindWinterHeatColdDroughtWildfireLightningFogOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 512 events in the 20 years to 2025 against 184 in the 20 years before. Reporting practice changed in 1996 and again with automated reports in the 2000s, so decade totals measure the record as much as the weather.

Events by type

Wind222
Flood155
Hail151
Winter101
Other43
Tornado25
Cold21
Drought19
Heat13
Lightning4
Fog3
Wildfire1
HazardEventsDeathsShare of state's events
■ Wind22211.5%detail
■ Flood15546.0%detail
■ Hail151—1.6%detail
■ Winter10131.0%detail
■ Other4314.3%
■ Tornado25—1.4%detail
■ Cold2121.2%
■ Drought19—1.3%
■ Heat1311.0%
■ Lightning4—0.6%
■ Fog310.2%
■ Wildfire1—3.2%

Hazard pages exist for hail, tornado, flood, wind and winter where the county has at least 10 recorded events. "Other" covers heavy rain, debris flow, dust, funnel clouds and similar reports.

Largest recorded events

DateEvent typeGroupMagnitudeProperty damageCrop damageDeathsInjuriesGeography
3 Feb 2018Winter WeatherWinter—$20K—11Forecast zone
10 Mar 2013Winter WeatherWinter—$10K—11Forecast zone
22 Sep 2016Flash FloodFlood—$8.9M—1—County
22 Sep 2016FloodFlood—$986K—1—County
10 Nov 1998High WindWind71 mph$150K—1—Forecast zone
26 Jul 2020Heavy RainOther—$20K—1—County
8 May 2004Flash FloodFlood—$15K—1—County
22 Mar 2011Winter WeatherWinter—$2K—1—Forecast zone
2 Jul 2012HeatHeat———1—Forecast zone
7 Mar 2013Cold/Wind ChillCold———1—Forecast zone
29 Mar 2019FloodFlood———1—County
6 Feb 2021Cold/Wind ChillCold———1—Forecast zone
3 Dec 2023Dense FogFog———1—Forecast zone
11 Jan 2013Dense FogFog—$15K——4Forecast zone
18 Aug 2007Flash FloodFlood—$28M$500K——County
27 Aug 2018Flash FloodFlood—$28M$250K——County
14 Apr 2026HailHail2.75 in$27M———County
23 Jul 2022Thunderstorm WindWind70 mph$175K——2County
15 Jun 1997Thunderstorm WindWind81 mph$35K——2County
5 Jun 1980TornadoTornadoF3$2.5M——1County

Ranked by deaths, then injuries, then NCEI's damage estimate. Deaths and injuries are NCEI counts (direct plus indirect); no personal details are recorded here.

Federal disaster declarations

DeclaredNumberTypeIncidentTitlePrograms
30 Jun 2026DR-4923Major disasterFloodSevere Storms, Tornadoes, And FloodingIndividual assistance, Public assistance
4 Apr 2020DR-4520Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3454EmergencyBiologicalCovid-19Public assistance
27 Aug 2019DR-4459Major disasterFloodSevere Storms, Tornadoes, Straight-Line Winds, And FloodingPublic assistance
18 Oct 2018DR-4402Major disasterFloodSevere Storms, Tornadoes, Straight-Line Winds, Flooding, And LandslidesIndividual assistance, Public assistance
7 Oct 2017DR-4343Major disasterSevere StormSevere Storms, Straight-Line Winds, Flooding, Landslides, And MudPublic assistance
20 Oct 2016DR-4288Major disasterFloodSevere Storms, Flooding, And MudslidesPublic assistance
8 Aug 2013DR-4141Major disasterSevere StormSevere Storms, Flooding, And MudslidesPublic assistance
14 Jun 2008DR-1768Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance, Public assistance
26 Aug 2007DR-1719Major disasterSevere StormSevere Storms And FloodingIndividual assistance, Public assistance
13 Sep 2005EM-3249EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
18 Jun 2004DR-1526Major disasterSevere StormSevere Storms And FloodingIndividual assistance, Public assistance
11 May 2001DR-1369Major disasterFloodFlooding, Severe Storms And TornadoesIndividual assistance, Public assistance
24 Jun 2000DR-1332Major disasterSevere StormSevere Storms, Tornadoes, And FloodingIndividual assistance, Public assistance
24 Jul 1998DR-1236Major disasterSevere StormSevere Storms,Straigh Line Winds, Tornadoes,Rain,And FloodiPublic assistance
2 Jul 1993DR-994Major disasterSevere StormSevere Storms, Tornadoes & FloodingIndividual assistance, Public assistance
30 Sep 1992DR-964Major disasterFloodSevere Storms & FloodingIndividual assistance, Public assistance
13 Jul 1990DR-874Major disasterSevere StormSevere Storms, Tornadoes & FloodingIndividual assistance, Public assistance
7 Jul 1978DR-559Major disasterSevere StormSevere Storms, Flooding, Hail & TornadoesIndividual assistance, Public assistance
17 Jun 1976EM-3014EmergencyDroughtDroughtPublic assistance
23 Mar 1976DR-496Major disasterFloodSevere Storms, Icing, Wind & FloodingIndividual assistance, Public assistance
1 May 1969DR-260Major disasterFloodFloodingIndividual assistance, Public assistance
21 Apr 1965DR-192Major disasterTornadoTornadoes, Severe Storms & FloodingIndividual assistance, Public assistance

Declarations in which FEMA designated this county, from the OpenFEMA Disaster Declarations Summaries (v2). DR: major disaster; EM: emergency; FM: fire management assistance. Programs show whether individual or public assistance was made available.

Flood insurance claims

197820022026
NFIP claims by year of loss in Vernon County, 1978 to 2026 (hover for the amount paid).
Claims since 1978178
Paid claims145
Total paid$4.3M
Average paid claim$29K
Repetitive-loss properties211 severe
Residential policies in force390.3% of 12,245 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202321$19,328$19,328
202142$64,285$32,143
202033$2,770$923
201943$71,704$23,901
20183634$2,165,399$63,688
201796$162,402$27,067
201685$363,264$72,653
201521$1,509$1,509
201111$6,203$6,203
201098$37,765$4,721
20083128$602,383$21,514
20072421$576,658$27,460
200411$1,644$1,644
200166$90,427$15,071
200020$0—
199743$22,817$7,606
199620$0—
199311$1,670$1,670
199276$15,979$2,663
199033$40,396$13,465
198610$0—
198484$5,174$1,293
198311$467$467
198121$136$136
198021$100$100

OpenFEMA NFIP claims (v3, as of 8 Sep 2026), aggregated by year of loss; amounts are building, contents and increased-cost-of-compliance payments as recorded. Repetitive-loss counts from the NFIP Multiple Loss Properties file (2 Aug 2026); policies in force from the NFIP Residential Penetration Rates file (3 Aug 2026).

National Risk Index

Overall riskRelatively Lowscore 75.0 of 100
Expected annual loss$25MRelatively Low
Social vulnerabilityRelatively High
Community resilienceRelatively High
Hazard (NRI)Risk ratingExpected annual loss
Cold waveRelatively High$9,991,615
Inland floodingRelatively Low$9,764,866
TornadoRelatively Moderate$1,847,533
HailRelatively Moderate$1,053,253
LandslideRelatively High$992,177
Strong windRelatively Moderate$843,128
Heat waveRelatively Low$587,001
LightningRelatively Low$89,668
DroughtRelatively Low$69,036
Ice stormRelatively Low$58,942
Winter weatherRelatively Low$28,333
EarthquakeVery Low$10,108
WildfireVery Low$4,554
HurricaneVery Low$1,303

FEMA National Risk Index, December 2025 release. Ratings are FEMA's relative comparison of counties; expected annual loss is FEMA's modelled estimate of average yearly building, population and agriculture loss. See how to read the NRI.

Hurricane and tropical storm passes

No HURDAT2 track at tropical-storm strength passes within 100 miles of the county's centre point (through the 2025 season).

ZIP codes with flood claims

ZIP codes whose NFIP claims carry this county's code, with the number of claims. Five or more claims are needed for a ZIP page to be indexed.

Questions and answers

How often does it hail in Vernon County, WI?

NCEI records 151 hail events in Vernon County since 1950, in 41 different years; that is about 2.0 recorded events a year. 30 reports were golf-ball size (1.75 in) or larger.

Has Vernon County had a tornado?

Yes. NCEI records 25 tornadoes in Vernon County since 1950, 7 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Vernon County?

30 Jun 2026: Severe Storms, Tornadoes, And Flooding, a major disaster declaration for flood. The county appears in 23 declarations since 1953.

How many flood insurance claims have been filed in Vernon County, and how much was paid?

178 NFIP claims since 1978, 145 of them paid, for $4.3M in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Vernon County in the National Risk Index's high-risk band?

FEMA's National Risk Index (December 2025) rates the county "Relatively Low" for overall risk, "Relatively Low" for expected annual loss, "Relatively High" for social vulnerability and "Relatively High" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Vernon County compare with the rest of Wisconsin?

95.8 recorded events per 100 square miles against 85.6 statewide, and 5.8 NFIP claims per 1,000 residents against 1.6. The comparison table on this page shows each measure beside the state and national figures.

Provenance

Storm events: NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026 (public domain). Declarations: OpenFEMA DisasterDeclarationsSummaries v2, refreshed 1 Oct 2026. Flood claims: OpenFEMA NfipClaims v3 as of 8 Sep 2026; NfipMultipleLossProperties v1 (2 Aug 2026); NfipResidentialPenetrationRates v1 (3 Aug 2026). Risk index: FEMA National Risk Index, December 2025. Hurricane tracks: NHC HURDAT2 through 2025. Population and area: US Census Bureau, 2021 vintage. Built 1 Oct 2026; see the methodology and corrections pages. Hazard hubs: Hail · Tornado · Flood · Wind · Winter.