TORNADOES MAP · HISTORICAL ARCHIVE
Iowa Tornado History & Map: Last Recorded & Total Count
The most recent Iowa tornado in NOAA's archive is dated Aug 18, 2025 (unrated, Grundy County, Iowa). 3,079 tornadoes touched down in Iowa from 1950–2025.
When was the last tornado in Iowa?
The most recent tornado on record in Iowa is dated Aug 18, 2025: an unrated tornado that touched down in Grundy County, Iowa. This archive ends on Dec 28, 2025 and is not a live feed.
How many tornadoes has Iowa had?
NOAA's SPC archive lists 3,079 tornadoes that touched down in Iowa during 1950–2025, the earliest dated May 4, 1950. The archive has entries in 76 of 76 covered calendar years. 2024 has the largest annual count, with 124 records.
Open this selection on the map ↗- Single-track records
- 3,079
- Tracks affecting more than one state
- 26
- Unrated records
- 146
- Records without a start position
- 0
When were Iowa tornadoes recorded?
June has the largest pooled count, with 779 records across the archive. This pools all covered years; individual dates can strongly influence the total. It is not a forecast or an adjusted monthly average.
- January14
- February2
- March165
- April397
- May739
- June779
- July386
- August268
- September126
- October69
- November62
- December72
Recorded tornadoes by archive month. Counts include records with missing coordinates or ratings. Source: NOAA SPC single-track archive.
Recorded damage ratings
F labels remain on earlier records and EF labels on records from February 1, 2007 onward. Unrated means unavailable, not EF0. Read the rating definitions.
| Rating number | F records | EF records |
|---|---|---|
| 0 | 817 | 493 |
| 1 | 640 | 320 |
| 2 | 395 | 100 |
| 3 | 100 | 19 |
| 4 | 37 | 6 |
| 5 | 5 | 1 |
| Unrated | 146 | |
Recent years in Iowa
| Year | Records | Explore |
|---|---|---|
| 2025 | 32 | Map for 2025 |
| 2024 | 124 | Map for 2024 |
| 2023 | 72 | Map for 2023 |
| 2022 | 42 | Map for 2022 |
| 2021 | 119 | Map for 2021 |
Selected records to explore
5 rated records, ordered by rating number, then most recent date and archive ID. These are examples to inspect, not a ranking of financial loss, measured winds, or casualties.
| Date | Touchdown | Rating | Length (mi) |
|---|---|---|---|
| May 25, 2008 | Grundy County, Iowa | EF5 | 40.97 |
| Jun 13, 1976 | Boone County, Iowa | F5 | 21.3 |
| May 15, 1968 | Franklin County, Iowa | F5 | 62.1 |
| May 15, 1968 | Fayette County, Iowa | F5 | 13.1 |
| Oct 14, 1966 | Wright County, Iowa | F5 | 9.7 |
How to interpret this page
These are whole tracks selected by their recorded touchdown area, not all tornadoes that affected that area. The linked map also includes tracks recorded as ending in or crossing the selected state, so its count may be higher. A border-crossing track's rating and dimensions describe the whole event and may reflect conditions beyond that border. Earlier reporting was less complete, especially for weaker tornadoes.
Source: NOAA SPC 1950–2025 single-track CSV. Latest event date: 2025-12-28. Processing and limitations explain missing values, approximate track lines, and why monetary losses are not totaled here.
Continue exploring
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Adjacent entries in the alphabetical directory.