Illinois

Storm History: Saint Clair County, Illinois

680 episodes, 1,047 events since 1952

Every storm the National Weather Service has filed in Saint Clair County, Illinois: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
1,047
Deaths
33
Injuries
302
Damage
$32 million
Episodes
680

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.

Open the live radar over Saint Clair County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Hail319220$35,000
Tornado26312132$13 million
Thunderstorm Wind23011$895,000
Flash Flood6800$10 million
Heat3612147
Excessive Heat3550
Winter Storm3201
Flood1300$8.3 million
Heavy Snow1100
High Wind1000$78,000
Lightning611$50,000
Drought400
Ice Storm300
Heavy Rain300
Winter Weather300
Cold/Wind Chill300
Sleet200
Blizzard200
Extreme Cold/Wind Chill100
Funnel Cloud100
Frost/Freeze100
Strong Wind100$1,000

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Saint Clair County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Saint Clair CountyEvery warning in Saint Clair County since 1986Every county in Illinois

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.