Sheboygan County, Wisconsin

County storm and disaster record · FIPS 55117 · population 117,195 · 512 sq mi

NOAA's Storm Events Database holds 734 records for Sheboygan County, Wisconsin from 1950 through June 30, 2026, on 611 days; the most frequent are winter storm records (216 records). 455 of them are forecast-zone records, which the National Weather Service files once per zone: a county covered by several zones receives each one, so a single storm can add several records on the same day. The deadliest single record is the October 11, 2002 dense fog, filed for the forecast zone Sheboygan, which covers the county: 10 deaths. FEMA has issued 11 declarations naming the county since 1973, 9 of them for natural hazards; the latest for a natural hazard was “Severe Storms, Tornadoes, and Flooding” on June 14, 2008.

The record, 1950 to 2026

Storm records filed for the county each year (2026 to June 30, 2026). Before 1996 NOAA recorded only tornadoes (from 1950), thunderstorm wind and hail (from 1955).

  • recorded, no damage figure
  • under $100,000
  • $100,000 or more
  • $1 million or more
  • $10 million or more, or a death
  • $100 million or more, or 10 deaths
  • a year's colour: its recorded damage or deaths
  • a year with a death
  • 1955: wind and hail recorded from 1955
  • 1996: all 48 event types from 1996
Storm records
734on 611 days, 1950 to June 30, 2026
Deaths recorded
1835 injuries
Damage, 2025 dollars
$158Mas filed (scale steps before 1993)
Tornadoes
10strongest F3
FEMA declarations
11latest 2020

Source: NOAA NCEI Storm Events Database, records through June 30, 2026 (file revision 20260918); damage converted to 2025 dollars with the BLS CPI-U. Search the record at NCEI. BLS consumer price index.

What hazards hit Sheboygan County most?

The most frequent records are winter storm records: 216 since 1996. 53% of its winter storm records since 1996 fell in January and February. The rank column places the county among Wisconsin's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

Sheboygan County: records by hazard, 1950 to June 30, 2026
HazardRecordsDaysFirst, lastKilledInjuredDamageRank in state
Winter storms 216 216 1996-2026 4 17 $137K 9 of 72
Severe thunderstorm wind 145 104 1957-2026 0 1 $6.0M 21 of 72
Fog, smoke and funnel clouds 88 82 1996-2021 12 0 $22K 6 of 72
Hail 69 48 1961-2026 0 0 $2K 39 of 72
High wind and dust storms 62 60 1996-2026 0 1 $2.1M 7 of 72
Extreme cold 37 36 1996-2026 1 3 $13K 8 of 72
Heat 37 37 1997-2026 0 3 – 13 of 72
Floods 36 30 1996-2025 0 0 $130M 19 of 72
Drought 15 15 2002-2012 0 0 $235K 28 of 72
Lightning 14 13 1996-2011 0 2 $636K 14 of 72
Tornadoes 10 9 1966-2018 1 8 $19M 52 of 72
Heavy rain 5 5 2003-2020 0 0 $1K 27 of 72

Source: NOAA NCEI Storm Events Database (county and forecast-zone records attributed to the county; a zone record shows its own totals on each county it covers). Days: dates with at least one record of the hazard in the county. Ranks: days with a record per 1,000 square miles of land (Census Bureau 2024 Gazetteer), since 1950 for tornadoes, 1955 for hail and thunderstorm wind, 1996 for the rest.

How many tornadoes has Sheboygan County had?

NOAA records 10 tornadoes in Sheboygan County from 1966 to 2018, the strongest rated F3, with 1 death and 8 injuries recorded in the county. A tornado that crossed a county line is counted in each county it touched, with the length of its path inside the county.

Counted as whole tornadoes rather than county records, the Storm Prediction Center's database holds 11 tornadoes whose track touched Sheboygan County since 1950 (NOAA's county records number 10: they file a crossing tornado once per county segment, and the two databases differ on some tracks); along their whole tracks they killed 2 people, 1 of them in Sheboygan County.

The deadliest and strongest tornadoes that touched Sheboygan County, whole tracks
DateTornadoRatingPathKilled
1974-04-21 15:30, as SPC files itKekoskeeF358.6 mi2

Map of the strongest tornado tracks in Wisconsin.

Every tornado record filed for Sheboygan County (10)
Every tornado recorded in Sheboygan County, newest first
DatePlaceCharacterKilledInjuredDamage
2018-08-28 Kohler Andrae State Park, Sheboygan County EF0 0.3 mi x 75 yd 0 0 –
2018-08-28 Parnell, Sheboygan County EF1 5.33 mi x 100 yd 0 0 –
2010-07-18 Howards Grove, Sheboygan County EF0 3.31 mi x 50 yd 0 0 $7K
2008-07-16 Sheboygan Co Ar, Sheboygan County EF1 1.5 mi x 75 yd 0 0 $481K
1996-07-18 Beechwood, Sheboygan County F1 0.9 mi x 150 yd 0 0 $471K
1987-07-26 Sheboygan County F1 0.2 mi x 50 yd 0 0 $250K step
1981-08-29 Sheboygan County F0 0 0 $3K step
1974-04-21 Sheboygan County F3 28.1 mi x 200 yd 1 7 $2.5M step
1973-07-30 Sheboygan County F1 0.3 mi x 50 yd 0 0 $25K step
1966-08-08 Sheboygan County F1 8.9 mi x 100 yd 0 1 $250K step

A damage figure marked "step" is a record from before 1993: NOAA then filed damage by category, and the figure is the category as entered, in the dollars of that year, not an estimate of the loss.

Source: NOAA NCEI Storm Events Database, tornado records by county (path length in the county, maximum width); ratings as published: F scale before February 1, 2007, EF scale after. Whole-track figures: NOAA Storm Prediction Center tornado database (1950-2025). SPC severe weather database.

When was the last damaging storm in Sheboygan County?

The most recent record with damage, injuries or deaths is the June 10, 2026 thunderstorm wind ($10,000 in damage in 2025 dollars).

The 12 most recent records kept for Sheboygan County
DateRecordCharacterKilledInjuredDamage
2026-06-30 Excessive HeatSheboygan County · forecast zone Sheboygan 0 0 –
2026-06-29 HeatSheboygan County · forecast zone Sheboygan 0 0 –
2026-06-11 Thunderstorm WindSheboygan Co Ar, Sheboygan County 51 kt wind 0 0 –
2026-06-10 Thunderstorm WindFranklin, Sheboygan County 52 kt wind 0 0 $10K
2026-05-17 Thunderstorm WindHowards Grove, Sheboygan County 61 kt wind 0 0 $4K
2026-03-31 HailMillersville, Sheboygan County 1.25 in hail 0 0 –
2026-03-31 HailMosel, Sheboygan County 1.00 in hail 0 0 –
2026-03-30 HailSheboygan County 1.00 in hail 0 0 –
2026-03-15 BlizzardSheboygan County · forecast zone Sheboygan 0 0 –
2026-03-14 Winter WeatherSheboygan County · forecast zone Sheboygan 0 0 –
2026-03-13 High WindSheboygan County · forecast zone Sheboygan 55 kt wind 0 0 $25K
2026-01-23 Extreme Cold/Wind ChillSheboygan County · forecast zone Sheboygan 0 0 –

Source: NOAA NCEI Storm Events Database; every record of 2025-2026 is listed, earlier ones when they caused deaths, injuries or $250,000 of damage (2025 dollars), and every tornado.

The deadliest and costliest records

Records with deaths or injuries in Sheboygan County, most deaths first
DateRecordCharacterKilledInjuredDamage
2002-10-11 Dense FogSheboygan County · forecast zone Sheboygan Shallow dense fog developed over parts of Sheboygan and Ozaukee counties during the overnight hours, and persisted to about 0830CST. The dense fog, reducing visibilities to zero to 1/4 mile, was a factor in three closely-spaced, but separate multi-vehicle accidents in Sheboygan County (total of 50 vehicles), and one ... 10 0 –
2019-01-18 Winter WeatherSheboygan County · forecast zone Sheboygan Two to five inches of snow accumulation with highest amounts near Lake MI. Two people were killed and two injured in a single vehicle accident in the village of Kohler. 2 2 –
2021-09-30 Dense FogSheboygan County · forecast zone Sheboygan Dense fog was a contributing factor in a deadly two vehicle accident at the intersection of highway 23 & TT just south of the Sheboygan County Memorial Airport. An eastbound mini-van struck a northbound tractor trailer. The two women in the mini-van were killed. 2 0 $22K
1974-04-21 TornadoSheboygan County F3 28.1 mi x 200 yd 1 7 $2.5M step
2017-03-01 Winter StormSheboygan County · forecast zone Sheboygan Five to seven inches of wet snow with the highest totals in the northern half of the county. One fatality occurred when a motorist slid and crossed the centerline striking another vehicle on highway 32 in the Town of Lima. Heavy snow was occurring at the time. 1 0 –
2017-01-03 Winter WeatherSheboygan County · forecast zone Sheboygan Areas of icy roads from light freezing drizzle and fog. A pickup truck slid off the road and hit some trees. One fatality occurred. 1 0 –
2008-12-21 Cold/Wind ChillSheboygan County · forecast zone Sheboygan Yet another bitter cold air mass pushed across southern Wisconsin in the wake of a winter storm. West winds of 13 to 17 knots (15 to 20 mph) with gusts to 26 to 35 knots (30 to 40 mph) generated wind chills of -20 to -34. Actual air temperatures at the start of this event ranged from -7 at Mineral Point (Iowa Co.) to ... 1 0 –
2008-12-01 Winter StormSheboygan County · forecast zone Sheboygan The first winter storm of the 2008-09 winter season over south-central and southeast Wisconsin started during the afternoon hours of November 30th, but continued to 0400 CST in the pre-dawn hours of December 1st. Snow accumulations of 3 to 10 inches were accompanied by northeast winds gusting to 25 to 30 mph, which ... 0 5 –

A damage figure marked "step" is a record from before 1993: NOAA then filed damage by category, and the figure is the category as entered, in the dollars of that year, not an estimate of the loss.

The costliest records in Sheboygan County since 1993, damage in 2025 dollars
DateRecordCharacterKilledInjuredDamage
1998-08-06 Flash FloodSheboygan County 0 0 $73M
1996-06-17 FloodSheboygan County · forecast zone Sheboygan 0 0 $30M
2004-06-01 FloodSheboygan County · forecast zone Sheboygan 0 0 $25M
2018-08-28 Thunderstorm WindParnell, Sheboygan County 87 kt wind 0 0 $1.7M
1998-05-31 Thunderstorm WindCountywide, Sheboygan County 0 0 $1.4M
1998-11-10 High WindSheboygan County · forecast zone Sheboygan 0 1 $1.4M
2008-06-12 Flash FloodWaldo, Sheboygan County 0 0 $963K
2001-04-07 Thunderstorm WindGreenbush, Sheboygan County 78 kt wind 0 0 $667K

Before 1993 NOAA filed damage by category, not amount, so the list above starts in 1993. The highest category filed here before then (entered as $2.5M, in the dollars of the day) holds: April 21, 1974 (tornado, Sheboygan County, 1 killed).

Source: NOAA NCEI Storm Events Database: deaths and injuries direct and indirect; damage is property plus crops as estimated by the National Weather Service, converted to 2025 dollars.

Is it getting more frequent?

Records per decade for Sheboygan County's most frequent hazards. Counts rose everywhere after 1996, when NOAA began recording every event type, so compare decades within a hazard's complete period only (the shaded cells come before it).

Sheboygan County: records per decade (the 2020s to June 30, 2026)
Hazard1950s1960s1970s1980s1990s2000s2010s2020-26
Winter storms––––11638557
Severe thunderstorm wind2351925313228
Fog, smoke and funnel clouds––––665161
Hail0522522249
High wind and dust storms––––426284
Extreme cold––––513127

Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).

What time of year?

53% of its winter storm records since 1996 fell in January and February. The two busiest months are in violet.

The values, month by month

Jan 92 · Feb 77 · Mar 60 · Apr 56 · May 43 · Jun 70 · Jul 92 · Aug 73 · Sep 36 · Oct 28 · Nov 30 · Dec 77 (records).

Source: NOAA NCEI Storm Events Database, records by the month they began.

Federal disaster declarations for Sheboygan County

FEMA's register lists 11 declarations that include Sheboygan County: 8 major disasters, 3 emergencies and 0 fire management assistance declarations. Most were for severe storm (3) and flood (3).

Declarations including Sheboygan County, newest first
DeclaredNumberTypeTitle
2020-04-04DR-4520BiologicalCovid-19 Pandemic
2020-03-13EM-3454BiologicalCovid-19
2008-06-14DR-1768Severe StormSevere Storms, Tornadoes, and Flooding
2005-09-13EM-3249HurricaneHurricane Katrina Evacuation
2004-06-18DR-1526Severe StormSevere Storms and Flooding
2001-01-24EM-3163SnowstormSnow
1998-08-12DR-1238Severe StormSevere Storms and Flooding
1986-10-07DR-775FloodSevere Storms & Flooding
1976-03-23DR-496FloodSevere Storms, Icing, Wind & Flooding
1974-04-26DR-431TornadoTornadoes
1973-04-27DR-376FloodSevere Storms & Flooding

Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), declarations through October 2, 2026; one declaration is counted once however many areas it names. OpenFEMA dataset page.

How many floods has Sheboygan County had?

NOAA's Storm Events Database holds 36 flood or flash flood records for Sheboygan County from 1996 to 2025, on 30 days, with 0 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Sheboygan County ranks 1648th of 2,942 U.S. counties.

The National Flood Insurance Program has paid $551,000 on 52 claims filed in Sheboygan County; the most in one year was 10 in 1998. Claims count insured losses only: uninsured flood damage is not in this file.

The values, year by year

1978: 1 · 1979: 3 · 1980: 3 · 1981: 1 · 1984: 1 · 1985: 1 · 1986: 5 · 1987: 2 · 1988: 1 · 1989: 1 · 1996: 1 · 1997: 1 · 1998: 10 · 1999: 1 · 2001: 2 · 2004: 2 · 2005: 1 · 2008: 3 · 2013: 3 · 2015: 1 · 2018: 1 · 2019: 1 · 2020: 6; the other years: 0.

Source: FEMA OpenFEMA NFIP Redacted Claims, as of September 8, 2026; claims by year of loss, payments in the dollars of the year paid. OpenFEMA dataset page.

FEMA's modeled risk for Sheboygan County

FEMA's National Risk Index rates Sheboygan County Relatively Low overall, with an expected annual loss of $36.2 million. These are FEMA's model estimates of future loss from 18 hazards, not a count of what happened; they can differ from the record above.

National Risk Index ratings for Sheboygan County (December 2025 release), by FEMA's rating, then score
HazardRisk ratingExpected annual lossModeled frequency
HailRelatively Moderate$2.4M2.4 a year (modeled)
Cold WaveRelatively Moderate$7.2M5.6 a year (modeled)
TornadoRelatively Moderate$6.4Monce in about 2 years (modeled)
Winter WeatherRelatively Moderate$147K16 a year (modeled)
LightningRelatively Moderate$474K32 a year (modeled)
Riverine FloodingRelatively Low$18Mabout once a year (modeled)
Heat WaveRelatively Low$1.1M2.1 modeled event-days a year
Strong WindRelatively Low$664K2.5 a year (modeled)

Source: FEMA National Risk Index, county table, December 2025 release. FEMA's National Risk Index map.

Counties that share a border with Sheboygan County

  1. Washington County 882
  2. Fond du Lac County 873
  3. Sheboygan County 734
  4. Ozaukee County 670
  5. Manitowoc County 458
  6. Calumet County 431
  7. Oceana County, MI 263
  8. Mason County, MI 258

Source: U.S. Census Bureau county adjacency file; NOAA NCEI Storm Events Database, records since 1950. The Census Bureau's adjacency file.

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