1,807
Recorded events
72
Counties affected
97
Direct deaths
$1.1B
Property damage
Wisconsin tornado history: 1,807 recorded events across 72 counties between 1950 and 2026.
Decade by decade
Wisconsin tornado history by decade
The 2000s are the busiest decade on record with 290 reported tornado events across Wisconsin. Earlier decades are thinner because systematic reporting for this hazard expanded over time, not because the weather was calmer.
County ranking
Counties with the most tornado events in Wisconsin
| Rank | County | Events | Deaths | Damage | Span |
|---|---|---|---|---|---|
| #1 | Dane County | 75 | 4 | $93.8M | 1955–2026 |
| #2 | Dodge County | 69 | 0 | $35.8M | 1951–2026 |
| #3 | Marathon County | 63 | 0 | $25.1M | 1950–2026 |
| #4 | Fond du Lac County | 56 | 2 | $60.4M | 1954–2018 |
| #5 | Grant County | 55 | 0 | $27.9M | 1954–2024 |
| #6 | Jefferson County | 51 | 3 | $11.2M | 1965–2026 |
| #7 | Walworth County | 45 | 0 | $7.7M | 1955–2026 |
| #8 | Clark County | 44 | 1 | $12.0M | 1950–2025 |
| #9 | Barron County | 41 | 1 | $19.4M | 1957–2020 |
| #10 | Waukesha County | 40 | 1 | $43.1M | 1954–2026 |
| #11 | Columbia County | 39 | 1 | $12.3M | 1951–2025 |
| #12 | Rock County | 38 | 0 | $41.3M | 1955–2026 |
| #13 | Chippewa County | 35 | 5 | $39.9M | 1953–2021 |
| #14 | Lafayette County | 34 | 0 | $11.4M | 1958–2024 |
| #15 | Outagamie County | 34 | 0 | $37.7M | 1959–2024 |
| #16 | St. Croix County | 34 | 2 | $38.5M | 1953–2025 |
| #17 | Polk County | 34 | 4 | $8.9M | 1952–2024 |
| #18 | Green Lake County | 33 | 8 | $12.8M | 1950–2018 |
| #19 | Iowa County | 33 | 9 | $6.8M | 1954–2025 |
| #20 | Green County | 31 | 0 | $6.3M | 1965–2024 |
| #21 | Winnebago County | 31 | 1 | $9.8M | 1959–2020 |
| #22 | Brown County | 30 | 0 | $6.7M | 1957–2021 |
| #23 | Shawano County | 28 | 0 | $6.0M | 1964–2025 |
| #24 | Trempealeau County | 27 | 0 | $7.3M | 1959–2026 |
| #25 | Pierce County | 27 | 0 | $5.1M | 1953–2024 |
Significant events
Deadliest tornado events in Wisconsin
| Date | County | Scale | Deaths | Injuries |
|---|---|---|---|---|
| Jun 4, 1958 | Dunn County | F5 | 20 | 54 |
| Jun 8, 1984 | Iowa County | F5 | 9 | 200 |
| Apr 3, 1956 | Green Lake County | F4 | 7 | 50 |
| Sep 26, 1951 | Waupaca County | F4 | 6 | 3 |
| Jun 5, 1958 | Eau Claire County | F4 | 4 | 3 |
| Apr 4, 1981 | Washington County | F4 | 3 | 53 |
| Jun 5, 1958 | Chippewa County | F4 | 3 | 50 |
| Apr 11, 1965 | Jefferson County | F2 | 3 | 28 |
| Aug 13, 1985 | Juneau County | F2 | 2 | 22 |
| Apr 3, 1956 | Portage County | F2 | 2 | 2 |