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Wisconsin · County tornado history

Green County, Wisconsin tornadoes

NOAA’s Storm Prediction Center has recorded 35 tornadoes in Green County, Wisconsin from 1950 through 2024, about one every 2.1 years. That ranks it 18 of 72 counties in Wisconsin with a recorded tornado. The most recent was an EF2 on June 22, 2024.

By Twisters.us · Updated · How we count

Tornadoes since 1950
35
Since 2000
18
Strongest
F3, April 16, 1967
Most recent
EF2, June 22, 2024
Peak month
June (17)
Per 1,000 sq mi
60
FEMA tornado risk
Relatively Moderate

F0/EF0 1 2 3 4 5 · Lines run from where each tornado touched down to where it lifted; dots are short paths. Neighboring counties are outlined.

When tornadoes hit Green County

June has brought the most, 17 of 35. About 69% touched down between 1 pm and 7 pm (Central Standard Time, as the Storm Prediction Center records it).

By decade

More tornadoes in recent decades mostly reflects better detection and reporting (Doppler radar, storm spotters, damage surveys), especially for weak EF0 tornadoes, not necessarily more storms. The 2020s bar covers only 2020 to 2024.

How strong they were

Rating Estimated 3-second gust Tornadoes
F0 / EF0 Light damage: 65 to 85 mph (EF scale) 10
F1 / EF1 Moderate: 86 to 110 mph 16
F2 / EF2 Considerable: 111 to 135 mph 6
F3 / EF3 Severe: 136 to 165 mph 2
F4 / EF4 Devastating: 166 to 200 mph 0
F5 / EF5 Incredible: over 200 mph 0
EF-U Unknown: no damage to rate (mostly since 2016) 1

Tornadoes before February 2007 were rated on the original Fujita (F) scale; since then the National Weather Service uses the Enhanced Fujita (EF) scale. Wind speeds above are EF-scale estimates from damage, not measurements. See what the EF scale means.

The strongest tornadoes in Green County

Date Rating Path length Path width Deaths Injuries
January 24, 1967 F3 24.9 mi 200 yd
April 16, 1967 F3 27.8 mi 500 yd
March 27, 1991 F2 32 mi 440 yd 1 5
June 9, 1979 F2 2.5 mi 50 yd 5
April 18, 1955 F2 9.2 mi 100 yd
September 2, 1963 F2 9.9 mi 100 yd
June 12, 1969 F2 0.3 mi 50 yd
June 22, 2024 EF2 6.9 mi 500 yd
April 11, 1965 F1 27.1 mi 167 yd 40
September 2, 1963 F1 70.7 mi 10 yd

Deaths and injuries are for each tornado’s whole path, which can cross other counties.

The deadliest

The deadliest tornado to touch Green County was an F2 on March 27, 1991. It killed 1 person and injured 5 along its 32-mile path.

Most recent tornadoes

Date Rating Path length Path width Deaths Injuries
June 22, 2024 EF2 6.9 mi 500 yd
February 8, 2024 EF1 8.3 mi 50 yd
September 25, 2023 EF-U 0 mi 25 yd
March 31, 2023 EF0 5.8 mi 75 yd
March 31, 2023 EF1 10.2 mi 50 yd
March 31, 2023 EF0 3 mi 75 yd
June 28, 2017 EF1 2.2 mi 300 yd
June 28, 2017 EF1 0.6 mi 150 yd

The official database ends with 2024. For storms since then, see the Storm Prediction Center’s reports and your local National Weather Service office.

FEMA’s tornado risk rating

FEMA’s National Risk Index rates the tornado risk in Green County as relatively moderate, with a score of 66 out of 100 compared with every other U.S. county. It estimates about 0.46 tornadoes a year here and an expected annual loss of about $2,636,906 to buildings, people and farming. The index mixes how often tornadoes strike with what is exposed and how well a community can recover, so a busy rural county can rate lower than a less active city.

Neighboring counties

Staying safe

When a tornado warning is issued, act at once. Go to a basement, storm shelter or safe room. With none, use a small windowless room on the lowest floor, as far from outside walls as you can, and cover your head and neck. Mobile homes and cars are not safe places to ride out a tornado: leave early for a sturdy building or shelter. Read the full tornado safety guide and the National Weather Service advice linked below.

Sources

Sources last checked 1 November 2026.

Frequently asked questions

How many tornadoes has Green County had?

35 from 1950 through 2024 in NOAA’s Storm Prediction Center database, 18 of them since 2000.

When was the last tornado in Green County?

The most recent in the official record was an EF2 on June 22, 2024. Later storms are not yet in the final database.

What was the strongest tornado in Green County?

An F3 on April 16, 1967, with a 27.8-mile path.

When is tornado season in Green County?

June has had the most tornadoes here. Across the U.S. the peak runs from spring into early summer, and the South also sees tornadoes in late fall and winter.