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Tornado in Clark County, Wisconsin
44 tornadoes events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Tornado.
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. Storm records through 30 Jun 2026.
Clark County, Wisconsin, has 44 tornado events in the NCEI record since 1950, with at least one in 21 different years.
May is the busiest month, with 11 of the recorded events. The last 20 years account for 23 events against 3 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 2.4% of the 1,820 tornado events recorded in Wisconsin; its 3.6 per 100 square miles compares with 3.4 statewide.
NCEI attributes 2 deaths in the county to tornadoes.
By rating: 8 at (E)F0, 18 at (E)F1, 14 at (E)F2, 3 at (E)F3, 1 at (E)F4, 0 at (E)F5. Tornadoes before 2007 carry the original Fujita rating.
Compared with Wisconsin
| Measure | Clark County | Wisconsin | US |
|---|---|---|---|
| Tornado events since 1950 | 44 | 1,820 | 81,281 |
| Per 100 square miles | 3.6 | 3.4 | 2.3 |
| Per 10,000 residents | 12.7 | 3.1 | 2.4 |
| Deaths recorded | 2 | 98 | 6,410 |
| Busiest month | May | June | May |
By year
Seasonality
0Feb
0Mar
0Apr
0May
11Jun
11Jul
7Aug
3Sep
6Oct
0Nov
1Dec
5
Magnitude distribution
Enhanced Fujita scale wind estimates
- EF0/F0
- 65–85 mph (EF0)
- EF1/F1
- 86–110 mph (EF1)
- EF2/F2
- 111–135 mph (EF2)
- EF3/F3
- 136–165 mph (EF3)
- EF4/F4
- 166–200 mph (EF4)
- EF5/F5
- over 200 mph (EF5)
- Unrated
- no rating recorded
Tornado rating as recorded (Fujita scale before February 2007, Enhanced Fujita after).
Recorded events
All 44 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 15 May 2025 | Tornado | EF0 | $1K | — | — | — | County |
| 15 May 2025 | Tornado | EF2 | $725K | $100K | — | — | County |
| 15 May 2025 | Tornado | EF1 | $45K | $15K | — | — | County |
| 15 May 2025 | Tornado | EF1 | — | — | — | — | County |
| 17 Jun 2024 | Tornado | EF0 | $20K | — | — | — | County |
| 17 Jun 2024 | Tornado | EF1 | — | — | — | — | County |
| 17 Jun 2024 | Tornado | EF0 | $15K | $5K | — | — | County |
| 21 May 2024 | Tornado | EF0 | $33K | $3K | — | — | County |
| 21 May 2024 | Tornado | EF1 | $330K | $14K | — | — | County |
| 21 May 2024 | Tornado | EF1 | $140K | $10K | — | — | County |
| 21 May 2024 | Tornado | EF1 | $88K | $6K | — | — | County |
| 21 May 2024 | Tornado | EF1 | $70K | $5K | — | — | County |
| 21 May 2024 | Tornado | EF1 | $270K | $18K | — | — | County |
| 15 Dec 2021 | Tornado | EF2 | $50K | — | — | — | County |
| 15 Dec 2021 | Tornado | EF2 | $200K | — | — | — | County |
| 15 Dec 2021 | Tornado | EF2 | $200K | — | — | — | County |
| 15 Dec 2021 | Tornado | EF1 | $160K | — | — | — | County |
| 15 Dec 2021 | Tornado | EF2 | $120K | — | — | — | County |
| 24 Sep 2019 | Tornado | EF1 | $255K | — | — | — | County |
| 19 Jul 2019 | Tornado | EF1 | $30K | — | — | — | County |
| 19 Jul 2019 | Tornado | EF0 | $30K | — | — | — | County |
| 23 Aug 2011 | Tornado | EF2 | $1.4M | $91K | 1 | 2 | County |
| 14 Jul 2010 | Tornado | EF1 | $5K | — | — | — | County |
| 4 Jun 2005 | Tornado | F1 | $600K | $10K | — | — | County |
| 30 Sep 2002 | Tornado | F0 | — | — | — | — | County |
| 25 Jun 2002 | Tornado | F1 | $100K | — | — | 2 | County |
| 26 Sep 1986 | Tornado | F1 | $250K | — | — | — | County |
| 12 Aug 1985 | Tornado | F1 | — | — | — | — | County |
| 7 Jun 1984 | Tornado | F2 | $250K | — | — | — | County |
| 16 Aug 1983 | Tornado | F0 | $250K | — | — | — | County |
| 19 Jul 1983 | Tornado | F2 | $3K | — | — | — | County |
| 3 Jul 1983 | Tornado | F2 | $250K | — | — | — | County |
| 15 Jul 1980 | Tornado | F1 | — | — | — | — | County |
| 28 Sep 1971 | Tornado | F3 | $250K | — | — | — | County |
| 28 Sep 1971 | Tornado | F3 | $250K | — | — | 1 | County |
| 26 Jun 1969 | Tornado | F2 | $2.5M | — | — | 2 | County |
| 22 Jul 1967 | Tornado | F2 | $250K | — | — | — | County |
| 30 Jun 1967 | Tornado | F1 | $25K | — | — | — | County |
| 23 Jun 1962 | Tornado | F2 | $3K | — | — | — | County |
| 15 Nov 1960 | Tornado | F2 | $25K | — | — | — | County |
| 22 Sep 1959 | Tornado | F0 | $3K | — | — | — | County |
| 26 May 1959 | Tornado | F3 | $250K | — | — | 2 | County |
| 4 Jun 1958 | Tornado | F4 | $2.5M | — | — | — | County |
| 25 Jun 1950 | Tornado | F2 | $25K | — | 1 | — | County |
Questions and answers
How many tornado events has Clark County had?
44 events in the NCEI Storm Events record between 1950 and 2026. Reporting of tornadoes became far more complete after 1996, so early decades undercount.
When was the last recorded tornado event in Clark County?
15 May 2025 (Tornado, EF1). Records reach NCEI about 120 days after the month ends.
What was the most damaging tornado event recorded in Clark County?
The tornado of 4 Jun 1958, with property damage estimated by NCEI at $2.5M.
How does Clark County compare with Wisconsin for tornado?
3.6 events per 100 square miles against 3.4 statewide; the county holds 44 of the state's 1,820 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Tornado hub and the county page.