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Tornado in Jasper County, Iowa
45 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.
Jasper County, Iowa, has 45 tornado events in the NCEI record since 1950, with at least one in 23 different years.
May is the busiest month, with 11 of the recorded events. The last 20 years account for 23 events against 12 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.3% of the 3,501 tornado events recorded in Iowa; its 6.2 per 100 square miles compares with 6.3 statewide.
NCEI attributes 2 deaths in the county to tornadoes.
By rating: 24 at (E)F0, 7 at (E)F1, 7 at (E)F2, 2 at (E)F3, 1 at (E)F4, 0 at (E)F5 and 4 unrated. Tornadoes before 2007 carry the original Fujita rating.
Compared with Iowa
| Measure | Jasper County | Iowa | US |
|---|---|---|---|
| Tornado events since 1950 | 45 | 3,501 | 81,281 |
| Per 100 square miles | 6.2 | 6.3 | 2.3 |
| Per 10,000 residents | 11.9 | 11.0 | 2.4 |
| Deaths recorded | 2 | 100 | 6,410 |
| Busiest month | May | May | May |
By year
Seasonality
0Feb
0Mar
3Apr
5May
11Jun
8Jul
8Aug
3Sep
4Oct
2Nov
0Dec
1
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 45 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 |
|---|---|---|---|---|---|---|---|
| 25 Jun 2024 | Tornado | EF unrated | — | — | — | — | County |
| 25 Jun 2024 | Tornado | EF unrated | — | — | — | — | County |
| 7 May 2024 | Tornado | EF0 | $25K | — | — | — | County |
| 26 Apr 2024 | Tornado | EF unrated | — | — | — | — | County |
| 26 Apr 2024 | Tornado | EF1 | $250K | — | — | 1 | County |
| 13 Oct 2023 | Tornado | EF0 | $1K | — | — | — | County |
| 5 Mar 2022 | Tornado | EF2 | $50M | — | — | — | County |
| 5 Mar 2022 | Tornado | EF2 | $500K | — | — | — | County |
| 15 Dec 2021 | Tornado | EF0 | $50K | — | — | — | County |
| 22 Sep 2019 | Tornado | EF unrated | — | $100 | — | — | County |
| 19 Jul 2018 | Tornado | EF0 | — | $1K | — | — | County |
| 19 Jul 2018 | Tornado | EF0 | — | $800 | — | — | County |
| 19 Jul 2018 | Tornado | EF0 | $8K | $2K | — | — | County |
| 3 May 2018 | Tornado | EF0 | — | — | — | — | County |
| 3 May 2018 | Tornado | EF0 | — | — | — | — | County |
| 6 Jul 2014 | Tornado | EF0 | — | $50K | — | — | County |
| 6 Jul 2014 | Tornado | EF0 | — | $1K | — | — | County |
| 27 Jul 2008 | Tornado | EF0 | — | — | — | — | County |
| 27 Jul 2008 | Tornado | EF0 | — | — | — | — | County |
| 5 Jun 2008 | Tornado | EF1 | $250K | $5K | — | 2 | County |
| 5 Jun 2008 | Tornado | EF1 | $75K | — | — | — | County |
| 5 Jun 2008 | Tornado | EF0 | $25K | — | — | — | County |
| 30 Sep 2007 | Tornado | EF2 | $1.0M | $500K | — | — | County |
| 22 May 2004 | Tornado | F0 | — | — | — | — | County |
| 22 May 2004 | Tornado | F0 | — | — | — | — | County |
| 22 May 2004 | Tornado | F0 | $5K | $2K | — | — | County |
| 22 May 2004 | Tornado | F0 | — | — | — | — | County |
| 22 May 2004 | Tornado | F0 | — | — | — | — | County |
| 11 Apr 2001 | Tornado | F1 | $10K | — | — | — | County |
| 8 Apr 1999 | Tornado | F2 | $1.0M | — | — | 1 | County |
| 9 Jul 1998 | Tornado | F0 | — | $500 | — | — | County |
| 12 May 1997 | Tornado | F0 | — | — | — | — | County |
| 16 Jun 1990 | Tornado | F0 | $3K | — | — | — | County |
| 13 Jun 1990 | Tornado | F0 | $3K | — | — | — | County |
| 8 May 1988 | Tornado | F1 | $250K | — | — | — | County |
| 28 Sep 1986 | Tornado | F4 | $2.5M | — | — | — | County |
| 8 May 1986 | Tornado | F1 | $25K | — | — | — | County |
| 26 Aug 1979 | Tornado | F1 | $25K | — | — | — | County |
| 19 Aug 1979 | Tornado | F0 | — | — | — | — | County |
| 16 Sep 1978 | Tornado | F3 | $250K | — | 2 | 2 | County |
| 4 Jun 1973 | Tornado | F2 | $250K | — | — | — | County |
| 3 Apr 1968 | Tornado | F2 | $25K | — | — | — | County |
| 30 Mar 1968 | Tornado | F0 | $3K | — | — | — | County |
| 14 Oct 1966 | Tornado | F3 | $25K | — | — | — | County |
| 26 Aug 1965 | Tornado | F2 | $25K | — | — | — | County |
Questions and answers
How many tornado events has Jasper County had?
45 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 Jasper County?
25 Jun 2024 (Tornado, EF unrated). Records reach NCEI about 120 days after the month ends.
What was the most damaging tornado event recorded in Jasper County?
The tornado of 5 Mar 2022, with property damage estimated by NCEI at $50M.
How does Jasper County compare with Iowa for tornado?
6.2 events per 100 square miles against 6.3 statewide; the county holds 45 of the state's 3,501 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.