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Tornado in Grant County, Wisconsin
56 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.
NCEI records 56 tornado events in Grant County, Wisconsin, between 1950 and 2026, spread over 28 years.
June is the busiest month, with 21 of the recorded events. The last 20 years account for 21 events against 11 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 3.1% of the 1,820 tornado events recorded in Wisconsin; its 4.9 per 100 square miles compares with 3.4 statewide.
By rating: 18 at (E)F0, 24 at (E)F1, 12 at (E)F2, 2 at (E)F3, 0 at (E)F4, 0 at (E)F5. Tornadoes before 2007 carry the original Fujita rating.
Compared with Wisconsin
| Measure | Grant County | Wisconsin | US |
|---|---|---|---|
| Tornado events since 1950 | 56 | 1,820 | 81,281 |
| Per 100 square miles | 4.9 | 3.4 | 2.3 |
| Per 10,000 residents | 10.7 | 3.1 | 2.4 |
| Deaths recorded | 0 | 98 | 6,410 |
| Busiest month | June | June | May |
By year
Seasonality
0Feb
0Mar
2Apr
3May
18Jun
21Jul
2Aug
4Sep
5Oct
1Nov
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 56 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 |
|---|---|---|---|---|---|---|---|
| 17 Jun 2026 | Tornado | EF1 | $90K | $130K | — | — | County |
| 15 Jul 2024 | Tornado | EF1 | $35K | $10K | — | — | County |
| 22 Jun 2024 | Tornado | EF0 | — | $10K | — | — | County |
| 7 Aug 2021 | Tornado | EF3 | $430K | $25K | — | — | County |
| 10 Aug 2020 | Tornado | EF0 | $15K | — | — | — | County |
| 28 Mar 2020 | Tornado | EF1 | $180K | — | — | — | County |
| 26 Jun 2018 | Tornado | EF0 | — | — | — | — | County |
| 9 May 2018 | Tornado | EF0 | $25K | — | — | — | County |
| 29 Jun 2014 | Tornado | EF1 | $410K | $6K | — | — | County |
| 16 Jun 2014 | Tornado | EF2 | $21M | $2K | — | 5 | County |
| 16 Jun 2014 | Tornado | EF1 | $540K | $1K | — | — | County |
| 29 May 2013 | Tornado | EF0 | — | — | — | — | County |
| 4 Sep 2012 | Tornado | EF2 | $420K | $8K | — | — | County |
| 26 Apr 2009 | Tornado | EF0 | — | — | — | — | County |
| 12 Jun 2008 | Tornado | EF0 | $3K | $10K | — | — | County |
| 7 Jun 2008 | Tornado | EF0 | $750 | — | — | — | County |
| 3 Jun 2007 | Tornado | EF0 | $1K | — | — | — | County |
| 3 Jun 2007 | Tornado | EF0 | — | $500 | — | — | County |
| 3 Jun 2007 | Tornado | EF0 | $800 | $2K | — | — | County |
| 26 May 2007 | Tornado | EF0 | — | — | — | — | County |
| 31 Mar 2007 | Tornado | EF0 | $8K | — | — | — | County |
| 18 Aug 2005 | Tornado | F1 | $100K | $20K | — | — | County |
| 18 Jun 1998 | Tornado | F0 | $200K | $20K | — | 1 | County |
| 16 Jun 1996 | Tornado | F0 | — | — | — | — | County |
| 8 Apr 1991 | Tornado | F0 | $250 | — | — | — | County |
| 8 May 1988 | Tornado | F1 | $25K | — | — | — | County |
| 8 May 1988 | Tornado | F1 | — | — | — | — | County |
| 8 May 1988 | Tornado | F1 | — | — | — | — | County |
| 8 May 1988 | Tornado | F2 | $250K | — | — | — | County |
| 8 May 1988 | Tornado | F1 | $250 | — | — | — | County |
| 8 May 1988 | Tornado | F1 | — | — | — | — | County |
| 8 May 1988 | Tornado | F2 | $250K | — | — | — | County |
| 30 May 1985 | Tornado | F3 | $2.5M | — | — | 2 | County |
| 30 May 1985 | Tornado | F2 | $250K | — | — | — | County |
| 19 Aug 1980 | Tornado | F1 | $250K | — | — | — | County |
| 26 Jun 1973 | Tornado | F1 | $250K | — | — | 2 | County |
| 28 Sep 1972 | Tornado | F1 | $3K | — | — | — | County |
| 1 May 1972 | Tornado | F0 | $3K | — | — | — | County |
| 30 Oct 1971 | Tornado | F1 | $3K | — | — | — | County |
| 9 Sep 1971 | Tornado | F1 | — | — | — | — | County |
| 24 Jun 1971 | Tornado | F1 | $25K | — | — | — | County |
| 7 Jun 1971 | Tornado | F1 | $25K | — | — | — | County |
| 18 May 1971 | Tornado | F1 | — | — | — | — | County |
| 18 May 1971 | Tornado | F1 | $25K | — | — | — | County |
| 9 Sep 1970 | Tornado | F2 | $250K | — | — | — | County |
| 9 Sep 1970 | Tornado | F1 | $25K | — | — | — | County |
| 29 Jun 1969 | Tornado | F1 | $25K | — | — | — | County |
| 26 Jun 1969 | Tornado | F2 | $25K | — | — | 2 | County |
| 4 Jun 1969 | Tornado | F2 | $250K | — | — | — | County |
| 4 Jun 1969 | Tornado | F2 | $250K | — | — | — | County |
| 31 May 1969 | Tornado | F1 | $3K | — | — | — | County |
| 7 Jun 1967 | Tornado | F0 | — | — | — | — | County |
| 13 Jul 1966 | Tornado | F2 | $250K | — | — | — | County |
| 19 May 1959 | Tornado | F2 | $25K | — | — | — | County |
| 25 May 1957 | Tornado | F2 | $25K | — | — | — | County |
| 26 Apr 1954 | Tornado | F1 | $3K | — | — | — | County |
Questions and answers
How many tornado events has Grant County had?
56 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 Grant County?
17 Jun 2026 (Tornado, EF1). Records reach NCEI about 120 days after the month ends.
What was the most damaging tornado event recorded in Grant County?
The tornado of 16 Jun 2014, with property damage estimated by NCEI at $21M and crop damage at $2K.
How does Grant County compare with Wisconsin for tornado?
4.9 events per 100 square miles against 3.4 statewide; the county holds 56 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.