Illinois, 1974

Tornadoes and Hail in Illinois, June 21, 1974

June 21, 1974 · 17 events in 11 counties and zones

9 hail, 6 thunderstorm wind, 2 tornado, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
17

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Event by event

9 hail, 6 thunderstorm wind, 2 tornado. Local standard time, as filed.

Thunderstorm Wind, Henry

When
June 21, 3:00 AM CST
Where
Henry County
Coordinates
41.300, -90.200

Thunderstorm Wind, Warren

When
June 21, 3:30 AM CST
Where
Warren County
Coordinates
40.920, -90.630

Hail,

When
June 21, 6:20 PM CST
Where
County
Measured
0.75 in hail
Coordinates
40.630, -91.170

Hail, Woodford

When
June 21, 6:30 PM CST
Where
Woodford County
Measured
0.75 in hail
Coordinates
40.780, -89.350

Hail, McDonough

When
June 21, 6:40 PM CST
Where
McDonough County
Measured
1.75 in hail
Coordinates
40.580, -90.870

Hail, McDonough

When
June 21, 6:55 PM CST
Where
McDonough County
Measured
2.75 in hail
Coordinates
40.470, -90.670

Tornado, McDonough

When
June 21, 7:05 PM CST
Where
McDonough County
Rating
F1
Path width
33 yd
Coordinates
40.430, -90.670

Thunderstorm Wind, Tazewell

When
June 21, 7:25 PM CST
Where
Tazewell County
Coordinates
40.370, -89.550

Hail, McLean

When
June 21, 7:30 PM CST
Where
McLean County
Measured
0.75 in hail
Coordinates
40.320, -89.170

Thunderstorm Wind, McLean

When
June 21, 7:30 PM CST
Where
McLean County
Coordinates
40.320, -89.170

Hail, Fulton

When
June 21, 7:59 PM CST
Where
Fulton County
Measured
1.75 in hail
Coordinates
40.230, -90.350

Thunderstorm Wind, Fulton

When
June 21, 7:59 PM CST
Where
Fulton County
Coordinates
40.230, -90.350

Hail, Adams

When
June 21, 8:00 PM CST
Where
Adams County
Measured
0.75 in hail
Coordinates
40.120, -91.020

Hail, McDonough

When
June 21, 8:15 PM CST
Where
McDonough County
Measured
0.75 in hail
Coordinates
40.280, -90.650

Tornado, Schuyler

When
June 21, 8:17 PM CST
Where
Schuyler County
Rating
F1
Path width
33 yd
Coordinates
40.250, -90.670

Hail, Warren

When
June 21, 8:44 PM CST
Where
Warren County
Measured
0.75 in hail
Coordinates
40.730, -90.670

Thunderstorm Wind, Macon

When
June 21, 8:47 PM CST
Where
Macon County
Measured
50 kt (58 mph)
Coordinates
39.830, -88.870

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Illinois in 1974Every state in 1974This day in weather historyThe tornado archive for Illinois, 1974

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 10008028, 10008029, 10008030, 10008031, 10008032, 10008033, 10008034, 10008035, 10008036, 10008037, 10008038, 10008889, 10009105, 10009106, 10009107, 10009108, 10009109.