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Illinois · County tornado history

Montgomery County, Illinois tornadoes

NOAA’s Storm Prediction Center has recorded 51 tornadoes in Montgomery County, Illinois from 1950 through 2024, about one every 1.5 years. That ranks it 18 of 102 counties in Illinois with a recorded tornado. The most recent was an EF0 on March 31, 2023.

Tornadoes since 1950
51
Since 2000
28
Strongest
F3, June 1, 1999
Most recent
EF0, March 31, 2023
Peak month
April (14)
Per 1,000 sq mi
72
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 Montgomery County

April has brought the most, 14 of 51. About 73% touched down between 1 pm and 7 pm (Central Standard Time, as the Storm Prediction Center records it). Winter tornadoes (December to February) make up 16% 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) 19
F1 / EF1 Moderate: 86 to 110 mph 14
F2 / EF2 Considerable: 111 to 135 mph 12
F3 / EF3 Severe: 136 to 165 mph 4
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) 2

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 Montgomery County

Date Rating Path length Path width Deaths Injuries
June 1, 1999 F3 10 mi 200 yd 1 4
May 29, 1982 F3 10 mi 200 yd 7
March 20, 1976 F3 8.8 mi 27 yd 4
January 3, 1950 F3 3.6 mi 130 yd 3
April 2, 1964 F2 4.9 mi 20 yd 4
May 12, 1978 F2 34.1 mi 700 yd 1
February 20, 2014 EF2 22.4 mi 200 yd 1
December 10, 2021 EF2 41.5 mi 690 yd 1
August 4, 1959 F2 26.7 mi 10 yd
October 10, 1959 F2 48.7 mi 33 yd

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

The deadliest

The deadliest tornado to touch Montgomery County was an F1 on April 28, 1956. It killed 2 people and injured 0 along its 4.7-mile path.

Most recent tornadoes

Date Rating Path length Path width Deaths Injuries
March 31, 2023 EF0 6.3 mi 150 yd
March 5, 2022 EF1 3.9 mi 40 yd
December 10, 2021 EF2 41.5 mi 690 yd 1
July 21, 2020 EF-U 0.2 mi 10 yd
July 15, 2020 EF0 4.5 mi 300 yd
July 15, 2020 EF0 0.6 mi 50 yd
July 15, 2020 EF0 3.2 mi 75 yd
May 28, 2020 EF-U 2.9 mi 100 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 Montgomery County as relatively moderate, with a score of 71 out of 100 compared with every other U.S. county. It estimates about 0.69 tornadoes a year here and an expected annual loss of about $2,372,349 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 Montgomery County had?

51 from 1950 through 2024 in NOAA’s Storm Prediction Center database, 28 of them since 2000.

When was the last tornado in Montgomery County?

The most recent in the official record was an EF0 on March 31, 2023. Later storms are not yet in the final database.

What was the strongest tornado in Montgomery County?

An F3 on June 1, 1999, with a 10-mile path.

When is tornado season in Montgomery County?

April 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.