NHC HURDAT2 · SPC Tornado Database

Hurricanes and Tornadoes That Hit Kewaskum, WI

Every tropical system within 75 miles since 1851 and every tornado within 25 miles since 1950.

Data: NOAA NHC HURDAT2 and NOAA SPC tornado and hail reports, through 2025 · Updated October 26, 2026

1 tropical system has passed within 75 miles of Kewaskum, Wisconsin since 1851, 0 of them at hurricane strength; the most recent was an unnamed storm in 1900. Since 1950, 90 tornadoes have touched down within 25 miles, 7 of them rated EF3 or stronger.

Hurricanes: 0
Tropical storms: 1
Tornadoes: 90
EF3 or stronger: 7

What the records show for Kewaskum

None of the 1 tropical systems was at hurricane strength as it passed Kewaskum; the strongest was an unnamed storm in 1900, a tropical storm with 59 mph winds when its centre passed 57 miles away. Kewaskum is tied for the most tropical storms and hurricanes within 75 miles among the 416 Wisconsin cities on this site. The strongest of the 90 tornadoes within 25 miles was an F5 on July 18, 1996; its path came within 17 miles. The deadliest, an F4 on April 4, 1981, killed 3 people. Of the 90, 3 had paths within 5 miles of the city centre, and 40 have come since 2000. The most recent tornado was on July 16, 2025. Kewaskum has more tornadoes within 25 miles than 63% of the 416 Wisconsin cities. Hail has been reported within 10 miles 58 times since 1958, with stones up to 2.5 inches (tennis ball size). Kewaskum has more hail reports within 10 miles than 54% of the 416 Wisconsin cities.

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Tropical storms and hurricanes near Kewaskum

Tropical systems that passed within 75 miles of Kewaskum, Wisconsin, newest first
Year	Storm	Closest	Strength when closest	Peak
1900	Unnamed 1900 stormSep 11	57 mi	Tropical storm (59 mph)	Category 4

Strength is the sustained wind on the track at the closest point, which is not the wind felt in Kewaskum: a hurricane's worst winds sit within a few dozen miles of its centre, and inland cities are usually past that.

Tornadoes within 25 miles of Kewaskum

By decade

2020s6
2010s16
2000s18(1 EF3+)
1990s8(1 EF3+)
1980s16(1 EF3+)
1970s9(3 EF3+)
1960s15(1 EF3+)
1950s2

Strongest tornadoes near Kewaskum, Wisconsin
Date	Rating	Distance	Path	Killed / injured
Jul 18, 1996	F5	17 mi	13.3 mi	0 / 12
Apr 4, 1981	F4	7 mi	1.8 mi	3 / 53
Aug 22, 1964	F4	17 mi	2.2 mi	0 / 30
Apr 21, 1974	F3	12 mi	58.6 mi	2 / 18
Jun 23, 2004	F3	12 mi	33.3 mi	0 / 0
Jun 5, 1977	F3	15 mi	69.5 mi	0 / 8
Apr 21, 1974	F3	12 mi	22.2 mi	0 / 0
May 15, 2025	EF2	13 mi	8.28 mi	0 / 0
May 15, 2025	EF2	20 mi	11.48 mi	0 / 1
Aug 28, 2018	EF2	15 mi	3.91 mi	0 / 0
Jun 1, 2000	F2	13 mi	17 mi	0 / 0
Jun 2, 1990	F2	22 mi	1 mi	0 / 1

The strongest 12 of 90, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.

Hail in Kewaskum

The Storm Prediction Center has 58 hail reports within 10 miles of Kewaskum since 1958, made on 42 separate days. Of these, 26 were 1 inch across or larger, and 3 reached 2 inches. The largest size, 2.5 inches (tennis ball size), was reported on 2 days, most recently August 2, 2015. The most recent report is from May 15, 2025. August has the most reports, 13.

Source: NOAA Storm Prediction Center severe weather reports, data through 2025.

Weather by month in Kewaskum

The nearest NOAA station with 1991–2020 climate normals is West Bend, WI, 12 miles southeast of Kewaskum at 940 feet. July is the warmest, with an average high of 82°F and low of 59°F; January is the coolest, at 28°F and 13°F. June is the wettest at 4.7 inches of precipitation on average and February the driest at 1.5 inches; the year adds up to 33.4 inches over 71 days with at least a tenth of an inch. Highs reach 90°F on about 9 days a year, almost all from June to August. Lows fall below freezing on about 153 nights a year. That 33.4 inches is more than at 49 of the 165 Wisconsin stations used on this site (30%). Campbellsport, 7 miles northwest, has its own station (Fond Du Lac 2 SW, WI): 32.4 inches a year, 1.0 less than here, and the same July average high, 82°F.

Monthly climate normals 1991–2020 at West Bend, WI
Month	High °F	Low °F	Precip. in	Days ≥ 0.1"
Jan	28	13	1.9	6
Feb	32	16	1.5	4
Mar	43	24	2.0	5
Apr	55	34	3.2	8
May	66	45	3.6	7
Jun	78	54	4.7	8
Jul	82	59	3.7	7
Aug	79	58	3.7	7
Sep	73	51	2.7	5
Oct	60	40	2.7	6
Nov	45	28	2.0	5
Dec	33	19	1.7	4
Year	56	37	33.4	71

Averages for 1991–2020 at West Bend, WI (940 ft), from NOAA NCEI U.S. Climate Normals. Normals describe the station; the farther a place is from it, and the bigger the difference in height, the more its weather can differ.

Wisconsin weather by month, station by station →

Floods, thunderstorm wind and lightning near Kewaskum

Since 1996, the National Weather Service has logged 87 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Kewaskum: 77 thunderstorm wind reports, 7 lightning strikes and 3 flash floods. They killed 1 person and injured 1, and the NWS estimated $9.5 million in property and crop damage. The strongest thunderstorm gust on record here was 100 mph, on November 17, 2013.

September 22, 2025: lightning strike 2 miles from the centre of Kewaskum — 1 killed.
NWS: “An employee of the Wisconsin Department of Natural Resources was struck by lightning when working outside near the New Fane hiking trail. The lightning strike was fatal.”
June 24, 1997: thunderstorm wind 7 miles from the centre of Kewaskum — 1 injured, $4,000 damage.
June 8, 2008: flash flood 6 miles from the centre of Kewaskum — $8.6 million damage.

Source: NOAA NCEI Storm Events Database, events whose starting point is on record, 1996 to June 30, 2026. Damage is the NWS estimate in the dollars of the year, not insured losses, and NWS notes that some reports are unverified.

Flood insurance claims, disaster declarations and FEMA risk ratings

Washington County, which includes Kewaskum, has been named in 14 federal disaster or emergency declarations since 1976, 10 of them major disasters (by incident: 4 floods, 4 severe storms, 2 biological emergencies, 2 snowstorms). The latest major disaster declaration was Severe Storms, Tornadoes, and Flooding, on June 30, 2026. FEMA's National Risk Index gives Washington County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively Moderate for tornadoes, hail, strong wind and lightning; Relatively Low for inland flooding and heat waves; Very Low for hurricanes. It models the county's expected loss from all 18 hazards it covers at $48.4 million a year, the 13th highest of 72 Wisconsin counties; of the hazards above, the largest share, $20.0 million (41%), is from inland flooding.

Claims: FEMA, OpenFEMA Dataset FIMA NFIP Redacted Claims – v3, summed over ZIP codes; payments in the dollars of each year, not adjusted for inflation. Declarations: Disaster Declarations Summaries – v2, by county. Retrieved October 25, 2026. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

Risk ratings: FEMA, National Risk Index county table, December 2025 (v1.20), retrieved October 26, 2026; ratings compare counties nationwide, are meant for planning and are no substitute for a local risk assessment. This product uses the Federal Emergency Management Agency's National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

What counts as a pass, the distances and the sources: how this storm history is built.

Cities near Kewaskum

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