States › Ohio › Brown County › Tornado
Tornado in Brown County, Ohio
27 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.
Brown County, Ohio, has 27 tornado events in the NCEI record since 1950, with at least one in 21 different years.
April is the busiest month, with 9 of the recorded events. The last 20 years account for 14 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 1,565 tornado events recorded in Ohio; its 5.5 per 100 square miles compares with 3.8 statewide.
NCEI attributes 1 death in the county to tornadoes.
By rating: 13 at (E)F0, 10 at (E)F1, 1 at (E)F2, 0 at (E)F3, 2 at (E)F4, 0 at (E)F5 and 1 unrated. Tornadoes before 2007 carry the original Fujita rating.
Compared with Ohio
| Measure | Brown County | Ohio | US |
|---|---|---|---|
| Tornado events since 1950 | 27 | 1,565 | 81,281 |
| Per 100 square miles | 5.5 | 3.8 | 2.3 |
| Per 10,000 residents | 6.2 | 1.3 | 2.4 |
| Deaths recorded | 1 | 200 | 6,410 |
| Busiest month | April | June | May |
By year
Seasonality
0Feb
1Mar
3Apr
9May
4Jun
3Jul
4Aug
1Sep
0Oct
0Nov
2Dec
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 27 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 |
|---|---|---|---|---|---|---|---|
| 3 Apr 2025 | Tornado | EF0 | $15K | — | — | — | County |
| 6 Jul 2022 | Tornado | EF1 | $500K | — | — | — | County |
| 8 Jun 2022 | Tornado | EF0 | $40K | — | — | — | County |
| 8 Apr 2020 | Tornado | EF0 | $15K | — | — | — | County |
| 8 Apr 2020 | Tornado | EF0 | $4K | — | — | — | County |
| 8 Apr 2020 | Tornado | EF0 | $15K | — | — | — | County |
| 24 Jun 2019 | Tornado | EF0 | $10K | — | — | — | County |
| 21 May 2018 | Tornado | EF0 | $10K | — | — | — | County |
| 25 Feb 2018 | Tornado | EF1 | $65K | — | — | — | County |
| 17 Aug 2016 | Tornado | EF0 | $30K | — | — | — | County |
| 2 Mar 2012 | Tornado | EF1 | $500K | — | — | — | County |
| 27 Jun 2011 | Tornado | EF1 | $90K | — | — | — | County |
| 21 May 2010 | Tornado | EF1 | $10K | — | — | — | County |
| 26 Apr 2007 | Tornado | EF0 | $50K | — | — | — | County |
| 6 Nov 2005 | Tornado | F0 | $5K | — | — | — | County |
| 27 May 2004 | Tornado | F1 | $100K | — | — | — | County |
| 4 Jul 2000 | Tornado | F0 | — | — | — | — | County |
| 22 Nov 1992 | Tornado | F1 | $2.5M | — | — | — | County |
| 10 Mar 1986 | Tornado | F2 | $2.5M | — | — | — | County |
| 2 Jul 1978 | Tornado | F0 | $25K | — | — | 1 | County |
| 2 Apr 1977 | Tornado | F0 | $25K | — | — | — | County |
| 3 Apr 1974 | Tornado | F1 | — | — | — | — | County |
| 26 Jul 1973 | Tornado | F1 | $250 | — | — | — | County |
| 23 Apr 1968 | Tornado | F4 | $2.5M | — | — | 1 | County |
| 23 Apr 1968 | Tornado | F4 | $2.5M | — | 1 | 4 | County |
| 8 May 1961 | Tornado | F1 | $3K | — | — | — | County |
| 6 Mar 1961 | Tornado | — | $25K | — | — | — | County |
Questions and answers
How many tornado events has Brown County had?
27 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 Brown County?
3 Apr 2025 (Tornado, EF0). Records reach NCEI about 120 days after the month ends.
What was the most damaging tornado event recorded in Brown County?
The tornado of 23 Apr 1968, with property damage estimated by NCEI at $2.5M.
How does Brown County compare with Ohio for tornado?
5.5 events per 100 square miles against 3.8 statewide; the county holds 27 of the state's 1,565 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.