Illinois

Storm History: McLean County, Illinois

512 episodes, 943 events since 1950

Every storm the National Weather Service has filed in McLean 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
943
Deaths
19
Injuries
48
Damage
$110 million
Episodes
512

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 McLean 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
Tornado384015$23 million
Hail22014$6.2 million
Flash Flood9600$13 million
Thunderstorm Wind9101$833,000
Winter Storm2311$400,000
Heavy Snow2121
High Wind1900$5,000
Drought1600$66 million
Ice Storm12312$1.3 million
Heat1140
Extreme Cold/Wind Chill1110
Winter Weather8213
Excessive Heat700
Dust Storm700
Cold/Wind Chill530
Blizzard510$500,000
Flood300
Dense Fog211
Frost/Freeze100
Lightning100$30,000

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 McLean County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in McLean CountyEvery warning in McLean 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.