Titan Archive
StateIL1950 → 2025

Illinois

Every recorded Illinois tornado since 1950: 3,149 tornadoes, 37 rated F4/EF4 or stronger, by year, month and county.

Counts use the part of each tornado inside this state. A tornado that crossed a state line is counted in each state it touched.

3,149
Tornadoes
37
F/EF4 or stronger
235
Tornado deaths
12,763
Miles of track
102
Counties with a tornado
Fewer to more tornadoesClick a legend item to show or hide it, or "only" to see just that. Select anything on the map to open its record.

Tornadoes by month

Jan: 43Feb: 81Mar: 236Apr: 614May: 664Jun: 625Jul: 294Aug: 230Sep: 95Oct: 65Nov: 100Dec: 102
JanFebMarAprMayJunJulAugSepOctNovDec

Strongest

Ranked by rating, then deaths, then path length.
#DateRatingTornadoStateLengthWidthDeathsInjuries
108/28/90F5Oswego to Rockdale, IllinoisIL16.4 mi600 yd29350
212/18/57F5Tamaroa, IllinoisIL5.4 mi200 yd16
304/21/67F4Palos Heights to Whiting, IllinoisIL15.0 mi200 yd33500
404/21/67F4Cherry Valley to Woodstock, IllinoisIL25.5 mi1,200 yd24450
502/10/59F4Eureka, MO to Venice, ILMO, IL0.1 mi200 yd0345
612/18/57F4Grand Tower to Zeigler, IllinoisIL28.3 mi300 yd11200
705/29/82F4Cambria to Pittsburg, IllinoisIL17.0 mi400 yd10181
802/29/12EF4Carrier Mills to Ridgway, IllinoisIL26.1 mi325 yd8108
902/24/56F4Union, MO to Breese, ILMO, IL42.3 mi500 yd636
1004/11/65F4Lakewood to Island Lake, IllinoisIL9.1 mi400 yd675

Deadliest

Deaths in this state.
#DateRatingTornadoStateLengthWidthDeathsInjuries
104/21/67F4Palos Heights to Whiting, IllinoisIL15.0 mi200 yd33500
208/28/90F5Oswego to Rockdale, IllinoisIL16.4 mi600 yd29350
304/21/67F4Cherry Valley to Woodstock, IllinoisIL25.5 mi1,200 yd24450
412/18/57F4Grand Tower to Zeigler, IllinoisIL28.3 mi300 yd11200
505/29/82F4Cambria to Pittsburg, IllinoisIL17.0 mi400 yd10181
604/20/04F3Mark to North Utica, IllinoisIL15.8 mi880 yd812
702/29/12EF4Carrier Mills to Ridgway, IllinoisIL26.1 mi325 yd8108
802/24/56F4Union, MO to Breese, ILMO, IL42.3 mi500 yd636
904/11/65F4Lakewood to Island Lake, IllinoisIL9.1 mi400 yd675
1008/21/77F3Windsor to Greenup, IllinoisIL26.9 mi77 yd656

Longest tracks in Illinois

Length on the ground inside this state.
#DateRatingTornadoStateLengthWidthDeathsInjuries
107/21/61F1Quincy to Tampico, IllinoisIL147 mi10 yd00
205/14/61F3Hannibal to Wyoming, IllinoisIL127 mi100 yd08
303/06/61F1Jerseyville to Greenup, IllinoisIL118 mi77 yd01
403/06/61F2Chester, IL to Albion, ILIL, MO110 mi50 yd00
501/18/73F1Benton to Mount Vernon, IllinoisIL95.9 mi10 yd00
607/17/72F3Wyoming to Joliet, IllinoisIL81.5 mi200 yd00
710/09/58F2Davis to Waukegan, IllinoisIL81.0 mi10 yd10
805/03/58F1Red Bud to Iuka, IllinoisIL75.9 mi100 yd00
908/15/58F2Dixon to Rockdale, IllinoisIL74.5 mi100 yd00
1005/10/03F2Canton to Roseville, IllinoisIL69.2 mi300 yd04

Widest since 1995

Maximum path width.
#DateRatingTornadoStateLengthWidthDeathsInjuries
105/16/25EF2Clayton, MO to Edwardsville, ILMO, IL14.3 mi1,750 yd038
204/19/96F3Ogden, IllinoisIL2.0 mi1,500 yd113
306/22/15EF3Mazon to Essex, IllinoisIL16.3 mi1,320 yd07
403/14/25EF2Florissant, MO to Alton, ILMO, IL2.5 mi1,320 yd00
506/13/24EF1Colfax to Gibson City, IllinoisIL7.6 mi1,300 yd00
604/02/25EF2Toledo, IL to St. Mary of the Woods, INIL, IN44.5 mi1,200 yd00
705/30/03F2Clinton, IllinoisIL12.8 mi1,100 yd04
802/28/17EF4Perryville, MO to Christopher, ILMO, IL36.1 mi1,100 yd012
905/13/95F4Fort Madison to Abingdon, IllinoisIL50.0 mi1,000 yd07
1005/06/03F4Dongola to Golconda, IllinoisIL33.0 mi1,000 yd233

Widest 1950 to 1994

Mean path width.
#DateRatingTornadoStateLengthWidthDeathsInjuries
107/23/75F3Cuba to Canton, IllinoisIL11.1 mi2,630 yd00
207/23/75F3Cuba to Glasford, IllinoisIL14.0 mi2,630 yd269
306/13/76F4Lemont to Burr Ridge, IllinoisIL3.3 mi1,760 yd223
408/03/91F1Olney, IllinoisIL0.5 mi1,733 yd00
504/22/63F3Tuscola, IL to Dana, INIL, IN38.6 mi1,600 yd040
606/13/75F3Avon to Farmington, IllinoisIL6.6 mi1,300 yd00
704/21/67F4Cherry Valley to Woodstock, IllinoisIL25.5 mi1,200 yd24450
805/15/68F1Atlanta to Farmer City, IllinoisIL25.4 mi1,000 yd450
905/05/77F4Atlanta to McLean, IllinoisIL7.3 mi1,000 yd02
1005/01/83F3East St. Louis, IL to Edwardsville, ILMO, IL15.0 mi1,000 yd03

Counties

select a column to sort
CountyTornadoesF/EF4+DeathsYearsStrongest
McLean County 122 0 0 1950–2025 F3
Will County 100 2 34 1955–2025 F5
Sangamon County 93 1 4 1954–2025 F4
Champaign County 87 1 3 1953–2025 F4
Cook County 87 2 41 1954–2025 F4
Macon County 79 1 2 1951–2025 F4
Logan County 73 1 1 1951–2025 F4
Tazewell County 73 1 3 1951–2025 EF4
Henry County 72 0 0 1956–2025 F2
Vermilion County 72 1 1 1953–2025 F4
LaSalle County 66 1 13 1955–2024 EF4
Madison County 65 3 9 1950–2025 F4
Kankakee County 61 1 3 1950–2024 F4
St. Clair County 60 1 12 1952–2025 F4
Christian County 58 0 0 1955–2025 EF3
Iroquois County 58 0 0 1954–2025 EF3
Livingston County 54 1 5 1950–2025 EF4
Woodford County 54 2 3 1954–2024 EF4
Montgomery County 51 0 3 1950–2023 F3
Fulton County 50 1 2 1960–2024 F4
Macoupin County 49 0 1 1950–2024 EF3
Bureau County 48 0 1 1951–2025 F3
DuPage County 46 1 4 1955–2025 F4
Kane County 46 0 0 1955–2024 F2
Mercer County 46 0 0 1952–2025 F3
Randolph County 45 1 1 1950–2025 EF4
McDonough County 44 0 0 1957–2025 F3
Morgan County 44 0 1 1955–2025 F3
Whiteside County 44 1 0 1961–2024 F4
Mason County 41 0 1 1951–2025 F3
Monroe County 41 0 0 1957–2025 F3
Jackson County 40 3 11 1951–2025 F4
Lee County 40 1 3 1956–2024 EF4
Rock Island County 40 0 0 1959–2025 F3
Coles County 39 0 0 1958–2025 F3
Ford County 39 0 1 1954–2025 F3
Peoria County 39 1 0 1960–2024 F4
Marion County 38 0 2 1953–2024 F2
Warren County 38 1 1 1959–2025 F4
Piatt County 37 1 1 1956–2025 F4
Adams County 36 0 0 1955–2025 F3
Knox County 35 0 0 1961–2025 F3
Pike County 35 0 0 1956–2021 F3
Shelby County 35 0 6 1955–2025 F3
Washington County 35 1 2 1953–2023 EF4
Edgar County 34 0 0 1958–2025 F3
Jefferson County 33 1 4 1953–2024 F4
Ogle County 33 1 4 1959–2024 EF4
Kendall County 32 1 30 1954–2025 F5
DeKalb County 30 1 2 1958–2024 EF4
Douglas County 30 0 0 1956–2025 F3
McHenry County 30 3 32 1958–2024 F4
Wayne County 30 2 2 1957–2024 F4
Hancock County 29 1 0 1955–2023 F4
Clinton County 28 1 9 1956–2025 F4
Effingham County 27 0 2 1959–2025 F3
Fayette County 27 0 1 1954–2025 F3
White County 27 0 1 1957–2025 EF3
De Witt County 26 1 4 1955–2025 F4
Grundy County 26 0 2 1955–2024 F3
Boone County 25 2 28 1958–2025 F4
Union County 25 0 1 1955–2025 F3
Bond County 24 0 3 1950–2025 F3
Perry County 24 1 1 1951–2025 F5
Schuyler County 24 0 1 1957–2021 F3
Winnebago County 24 0 2 1958–2024 F2
Lake County 23 3 8 1957–2024 F4
Williamson County 23 3 21 1957–2025 F4
Greene County 22 0 0 1952–2024 F3
Carroll County 21 0 0 1950–2024 F3
Crawford County 21 0 3 1956–2025 EF3
Jersey County 21 0 1 1961–2024 EF2
Jo Daviess County 21 0 0 1956–2024 F3
Stephenson County 21 0 1 1958–2024 F2
Cass County 20 0 1 1955–2025 F2
Franklin County 20 2 12 1957–2022 F4
Johnson County 20 0 1 1957–2025 F3
Clay County 19 1 0 1957–2024 F4
Massac County 19 1 5 1973–2025 F4
Saline County 19 1 8 1957–2025 EF4
Wabash County 19 2 1 1958–2024 F4
Alexander County 18 0 0 1957–2025 F2
Cumberland County 18 0 6 1960–2025 F3
Jasper County 18 1 3 1957–2025 F4
Marshall County 18 0 0 1965–2024 F3
Scott County 18 0 1 1955–2025 F3
Richland County 17 1 0 1956–2022 F4
Stark County 17 0 0 1959–2025 F3
Menard County 16 0 1 1954–2025 F3
Henderson County 15 1 0 1967–2015 F4
Moultrie County 15 0 0 1956–2025 F3
Pope County 15 1 8 1972–2025 F4
Gallatin County 14 1 8 1963–2025 EF4
Clark County 13 0 0 1970–2025 EF2
Hamilton County 13 1 1 1957–2020 F4
Brown County 12 0 0 1955–2023 F2
Pulaski County 12 1 2 1957–2025 F4
Putnam County 12 0 8 1965–2024 F3
Edwards County 11 1 1 1957–2015 F4
Lawrence County 11 0 0 1956–2024 F3
Calhoun County 10 0 0 1958–2025 F3
Hardin County 5 0 0 1959–2016 F1
  • Reporting changed over time. Tornado counts rose from the 1990s on as Doppler radar, spotter networks and cameras caught more weak tornadoes. Counts from different decades are not directly comparable, especially for the weakest ratings.
  • F and EF ratings. The Enhanced Fujita (EF) Scale replaced the Fujita (F) Scale on 02/01/07. Both estimate wind speed from damage, but they use different damage indicators, so each rating is shown with its own scale.
  • Ratings before the mid 1970s. The F Scale came into use in the early 1970s. Tornadoes from 1950 until then were rated afterward from newspaper accounts, photos and records, which tends to make those ratings less certain.
Titan Archive · a Tornado Titans project Data: NOAA Storm Prediction Center severe weather database · updated 10/03/26