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Tornado in Green County, Wisconsin
31 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.
Green County, Wisconsin, has 31 tornado events in the NCEI record since 1950, with at least one in 19 different years.
June is the busiest month, with 17 of the recorded events. The last 20 years account for 16 events against 4 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.7% of the 1,820 tornado events recorded in Wisconsin; its 5.3 per 100 square miles compares with 3.4 statewide.
By rating: 10 at (E)F0, 15 at (E)F1, 3 at (E)F2, 1 at (E)F3, 0 at (E)F4, 0 at (E)F5 and 2 unrated. Tornadoes before 2007 carry the original Fujita rating.
Compared with Wisconsin
| Measure | Green County | Wisconsin | US |
|---|---|---|---|
| Tornado events since 1950 | 31 | 1,820 | 81,281 |
| Per 100 square miles | 5.3 | 3.4 | 2.3 |
| Per 10,000 residents | 8.4 | 3.1 | 2.4 |
| Deaths recorded | 0 | 98 | 6,410 |
| Busiest month | June | June | May |
By year
Seasonality
1Feb
1Mar
4Apr
1May
2Jun
17Jul
3Aug
0Sep
2Oct
0Nov
0Dec
0
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 31 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 |
|---|---|---|---|---|---|---|---|
| 22 Jun 2024 | Tornado | EF0 | — | — | — | — | County |
| 8 Feb 2024 | Tornado | EF1 | $500K | — | — | — | County |
| 25 Sep 2023 | Tornado | EF unrated | — | — | — | — | County |
| 31 Mar 2023 | Tornado | EF0 | $400K | — | — | — | County |
| 31 Mar 2023 | Tornado | EF1 | $600K | — | — | — | County |
| 31 Mar 2023 | Tornado | EF0 | $200K | — | — | — | County |
| 28 Jun 2017 | Tornado | EF1 | $145K | — | — | — | County |
| 28 Jun 2017 | Tornado | EF1 | $325K | — | — | — | County |
| 26 May 2015 | Tornado | EF0 | — | — | — | — | County |
| 25 Jun 2014 | Tornado | EF0 | — | — | — | — | County |
| 17 Jun 2014 | Tornado | EF1 | $300K | — | — | — | County |
| 16 Jun 2014 | Tornado | EF1 | $50K | — | — | — | County |
| 16 Jun 2014 | Tornado | EF1 | $200K | — | — | — | County |
| 12 Jun 2008 | Tornado | EF1 | — | — | — | — | County |
| 12 Jun 2008 | Tornado | EF0 | — | — | — | — | County |
| 12 Jun 2008 | Tornado | EF1 | — | — | — | — | County |
| 6 Jul 2004 | Tornado | F0 | — | — | — | — | County |
| 30 May 2003 | Tornado | F1 | — | — | — | — | County |
| 17 Jun 1992 | Tornado | F1 | $25K | — | — | — | County |
| 27 Mar 1991 | Tornado | F2 | — | — | — | — | County |
| 22 Jun 1984 | Tornado | F0 | $3K | — | — | — | County |
| 9 Jun 1984 | Tornado | F0 | — | — | — | — | County |
| 15 Jun 1981 | Tornado | F0 | $3K | — | — | — | County |
| 5 Jun 1980 | Tornado | F1 | $3K | — | — | — | County |
| 9 Jun 1979 | Tornado | F2 | $250K | — | — | 5 | County |
| 20 Jul 1978 | Tornado | — | — | — | — | — | County |
| 28 Sep 1972 | Tornado | F1 | $250K | — | — | — | County |
| 12 Jun 1969 | Tornado | F2 | $250K | — | — | — | County |
| 29 Jul 1967 | Tornado | F1 | $25K | — | — | — | County |
| 24 Jan 1967 | Tornado | F3 | $250K | — | — | — | County |
| 11 Apr 1965 | Tornado | F1 | $2.5M | — | — | 40 | County |
Questions and answers
How many tornado events has Green County had?
31 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 Green County?
22 Jun 2024 (Tornado, EF0). Records reach NCEI about 120 days after the month ends.
What was the most damaging tornado event recorded in Green County?
The tornado of 11 Apr 1965, with property damage estimated by NCEI at $2.5M.
How does Green County compare with Wisconsin for tornado?
5.3 events per 100 square miles against 3.4 statewide; the county holds 31 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.