Illinois

Storm History: Monroe County, Illinois

351 episodes, 451 events since 1957

Every storm the National Weather Service has filed in Monroe 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
451
Deaths
1
Injuries
8
Damage
$4.2 million
Episodes
351

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 Monroe 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
Hail11300$117,000
Tornado10402$2.7 million
Thunderstorm Wind5800$554,000
Flash Flood3400$13,000
Excessive Heat3100
Heat3006
Winter Storm2900$750,000
Flood1100
Heavy Snow1100
High Wind700$3,000
Drought400
Ice Storm300
Winter Weather300
Cold/Wind Chill300
Heavy Rain200
Sleet200
Blizzard200
Extreme Cold/Wind Chill100
Frost/Freeze100
Strong Wind100$1,000
Dense Fog110$19,000

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 Monroe County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Monroe CountyEvery warning in Monroe 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.