Illinois

Storm History: Washington County, Illinois

344 episodes, 441 events since 1953

Every storm the National Weather Service has filed in Washington 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
441
Deaths
4
Injuries
15
Damage
$2.9 million
Episodes
344

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 Washington 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
Hail13301$214,000
Tornado10324$1.6 million
Thunderstorm Wind6300$1.0 million
Winter Storm3000
Heat27110
Excessive Heat2600
Flash Flood2200$51,000
Heavy Snow900
Flood600
Drought400
High Wind300$2,000
Ice Storm200
Heavy Rain200
Winter Weather200
Sleet200
Cold/Wind Chill200
Extreme Cold/Wind Chill100
Frost/Freeze100
Strong Wind100$1,000
Blizzard100
Lightning110

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 Washington County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Washington CountyEvery warning in Washington 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.