Hail,
- When
- July 23, 2:30 PM CST
- Where
- County
- Measured
- 1.75 in hail
- Coordinates
- 40.630, -91.170
Tornadoes and Hail in Illinois, July 23, 1975
10 thunderstorm wind, 4 hail, 3 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
The toll
- Deaths
- 2
- Injuries
- 69
- Property damage
- $25 million
- 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
10 thunderstorm wind, 4 hail, 3 tornado. Local standard time, as filed.
Hail, Mercer
- When
- July 23, 3:25 PM CST
- Where
- Mercer County
- Measured
- 0.75 in hail
- Coordinates
- 41.330, -90.850
Thunderstorm Wind, Mercer
- When
- July 23, 3:25 PM CST
- Where
- Mercer County
- Coordinates
- 41.330, -90.850
Hail, Rock Island
- When
- July 23, 3:45 PM CST
- Where
- Rock Island County
- Measured
- 0.75 in hail
- Coordinates
- 41.430, -90.720
Thunderstorm Wind, Rock Island
- When
- July 23, 3:55 PM CST
- Where
- Rock Island County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.500, -90.520
Thunderstorm Wind, Mercer
- When
- July 23, 3:55 PM CST
- Where
- Mercer County
- Coordinates
- 41.320, -90.500
Thunderstorm Wind, McDonough
- When
- July 23, 4:00 PM CST
- Where
- McDonough County
- Coordinates
- 40.550, -90.550
Hail, Henry
- When
- July 23, 4:20 PM CST
- Where
- Henry County
- Measured
- 0.75 in hail
- Coordinates
- 41.500, -90.150
Thunderstorm Wind, Henry
- When
- July 23, 4:20 PM CST
- Where
- Henry County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.500, -90.150
Tornado, Fulton
- When
- July 23, 4:30 PM CST
- Where
- Fulton County
- Rating
- F3
- Path length
- 11.1 mi
- Path width
- 2,630 yd
- Property damage
- $250,000
- Coordinates
- 40.550, -90.330
Tornado, Fulton
- When
- July 23, 4:45 PM CST
- Where
- Fulton County
- Rating
- F3
- Path length
- 14 mi
- Path width
- 2,630 yd
- Deaths
- 2 direct, 0 indirect
- Injuries
- 69 direct, 0 indirect
- Property damage
- $25 million
- Coordinates
- 40.570, -90.180
Thunderstorm Wind, Whiteside
- When
- July 23, 4:45 PM CST
- Where
- Whiteside County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.820, -89.970
Thunderstorm Wind, Whiteside
- When
- July 23, 4:45 PM CST
- Where
- Whiteside County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.670, -89.930
Tornado, Stark
- When
- July 23, 5:05 PM CST
- Where
- Stark County
- Rating
- F0
- Path length
- 0.5 mi
- Path width
- 20 yd
- Property damage
- $3,000
- Coordinates
- 41.080, -89.880
Thunderstorm Wind, Pike
- When
- July 23, 5:30 PM CST
- Where
- Pike County
- Coordinates
- 39.830, -90.570
Thunderstorm Wind, Peoria
- When
- July 23, 5:40 PM CST
- Where
- Peoria County
- Measured
- 74 kt (85 mph)
- Coordinates
- 40.670, -89.680
Thunderstorm Wind, Cook
- When
- July 23, 7:02 PM CST
- Where
- Cook County
- Measured
- 50 kt (58 mph)
- Coordinates
- 41.980, -87.900
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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.
- 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
- Tornado and Hail in Colorado, July 23, 1975
- Hail and Damaging Winds in Iowa, July 23, 1975
- Damaging Winds in Missouri, July 23, 1975
- Hail and Damaging Wind in South Dakota, July 23, 1975
- Hail in West Virginia, July 23, 1975
- Damaging Wind in Oklahoma, July 23, 1975
- Damaging Wind in Minnesota, July 23, 1975
- Damaging Wind in Arizona, July 23, 1975
- Hail in Kansas, July 23, 1975
- Tornado in New Mexico, July 23, 1975
More
Every storm in Illinois in 1975Every state in 1975This day in weather historyThe tornado archive for Illinois, 1975
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: 10010353, 10010354, 10010355, 10010356, 10010357, 10010358, 10010359, 10010360, 10010361, 10010362, 10010363, 10010364, 10010365, 10010366, 10010367, 10010368, 10010369.