753
Recorded events
95
Counties affected
0
Direct deaths
$0
Property damage
Iowa funnel cloud history: 753 recorded events across 95 counties between 1996 and 2026.
Decade by decade
Iowa funnel cloud history by decade
The 2010s are the busiest decade on record with 377 reported funnel cloud events across Iowa. 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 funnel cloud events in Iowa
| Rank | County | Events | Deaths | Damage | Span |
|---|---|---|---|---|---|
| #1 | Polk County | 24 | 0 | $0 | 1996–2024 |
| #2 | Hardin County | 21 | 0 | $0 | 2010–2024 |
| #3 | Kossuth County | 21 | 0 | $0 | 2010–2024 |
| #4 | Marshall County | 19 | 0 | $0 | 2010–2025 |
| #5 | Linn County | 19 | 0 | $0 | 2000–2025 |
| #6 | Hamilton County | 19 | 0 | $0 | 1996–2021 |
| #7 | Warren County | 19 | 0 | $0 | 2010–2024 |
| #8 | Dallas County | 19 | 0 | $0 | 2011–2024 |
| #9 | Johnson County | 19 | 0 | $0 | 1998–2015 |
| #10 | Story County | 17 | 0 | $0 | 2009–2025 |
| #11 | Madison County | 17 | 0 | $0 | 1996–2024 |
| #12 | Marion County | 17 | 0 | $0 | 2010–2024 |
| #13 | Pocahontas County | 16 | 0 | $0 | 2008–2025 |
| #14 | Franklin County | 14 | 0 | $0 | 2010–2025 |
| #15 | Cerro Gordo County | 14 | 0 | $0 | 1996–2021 |
| #16 | Webster County | 14 | 0 | $0 | 2010–2024 |
| #17 | Grundy County | 13 | 0 | $0 | 2007–2022 |
| #18 | Jasper County | 13 | 0 | $0 | 2008–2024 |
| #19 | Tama County | 13 | 0 | $0 | 1996–2024 |
| #20 | Benton County | 13 | 0 | $0 | 2000–2020 |
| #21 | Winnebago County | 13 | 0 | $0 | 1996–2024 |
| #22 | Union County | 13 | 0 | $0 | 1996–2024 |
| #23 | Sac County | 13 | 0 | $0 | 2010–2022 |
| #24 | Boone County | 12 | 0 | $0 | 2007–2023 |
| #25 | Hancock County | 12 | 0 | $0 | 1996–2021 |