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Illinois · County tornado history

Jefferson County, Illinois tornadoes

NOAA’s Storm Prediction Center has recorded 33 tornadoes in Jefferson County, Illinois from 1950 through 2024, about one every 2.3 years. That ranks it 43 of 102 counties in Illinois with a recorded tornado. The most recent was an EF1 on March 14, 2024.

Tornadoes since 1950
33
Since 2000
18
Strongest
F4, December 18, 1957
Most recent
EF1, March 14, 2024
Peak month
March (8)
Per 1,000 sq mi
56
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 Jefferson County

March has brought the most, 8 of 33. About 73% touched down between 3 pm and 9 pm (Central Standard Time, as the Storm Prediction Center records it). Winter tornadoes (December to February) make up 15% of the total, a sign of the cool-season storms common in the South.

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) 8
F1 / EF1 Moderate: 86 to 110 mph 12
F2 / EF2 Considerable: 111 to 135 mph 10
F3 / EF3 Severe: 136 to 165 mph 2
F4 / EF4 Devastating: 166 to 200 mph 1
F5 / EF5 Incredible: over 200 mph 0

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 Jefferson County

Date Rating Path length Path width Deaths Injuries
December 18, 1957 F4 16.8 mi 250 yd 1 45
April 21, 2002 F3 31.5 mi 500 yd 1 42
April 19, 1996 F3 17 mi 400 yd
March 30, 1982 F2 0.8 mi 100 yd 1 3
March 23, 2012 EF2 2.6 mi 100 yd 1 2
December 18, 1957 F2 4.5 mi 10 yd 2
February 9, 1960 F2 24 mi 77 yd 1
April 15, 1998 F2 5.5 mi 250 yd 1
March 14, 1953 F2 42.3 mi 200 yd
December 18, 1957 F2 11.6 mi 200 yd

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

The deadliest

The deadliest tornado to touch Jefferson County was an F4 on December 18, 1957. It killed 1 person and injured 45 along its 16.8-mile path.

Most recent tornadoes

Date Rating Path length Path width Deaths Injuries
March 14, 2024 EF1 0.5 mi 150 yd
March 19, 2020 EF1 2.9 mi 300 yd
August 2, 2017 EF0 0.5 mi 40 yd
October 13, 2014 EF1 0.7 mi 50 yd
October 13, 2014 EF1 3.5 mi 100 yd
November 17, 2013 EF1 0.1 mi 25 yd
March 23, 2012 EF2 2.6 mi 100 yd 1 2
May 25, 2011 EF2 13.5 mi 250 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 Jefferson County as relatively moderate, with a score of 79 out of 100 compared with every other U.S. county. It estimates about 0.45 tornadoes a year here and an expected annual loss of about $3,448,599 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 Jefferson County had?

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

When was the last tornado in Jefferson County?

The most recent in the official record was an EF1 on March 14, 2024. Later storms are not yet in the final database.

What was the strongest tornado in Jefferson County?

An F4 on December 18, 1957, with a 16.8-mile path.

When is tornado season in Jefferson County?

March 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.