Illinois

Storm History: Clark County, Illinois

226 episodes, 302 events since 1958

Every storm the National Weather Service has filed in Clark 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
302
Deaths
2
Injuries
3
Damage
$39 million
Episodes
226

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 Clark 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
Tornado8800$659,000
Hail7700$364,000
Flash Flood4200$2.2 million
Thunderstorm Wind2000$78,000
Winter Storm1310
Heavy Snow1300
Flood900$500,000
High Wind700
Heat700
Drought700$34 million
Excessive Heat600
Blizzard302$700,000
Extreme Cold/Wind Chill300
Cold/Wind Chill200
Ice Storm200
Frost/Freeze100
Dense Fog100
Winter Weather111

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 Clark County, with its track

Every episode, newest first

More

Tornadoes in Clark CountyEvery warning in Clark 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.