Illinois

Heavy Snow in Illinois

1,512 heavy snow events since 1997

Every heavy snow event the National Weather Service has filed in Illinois, year by year, with the most significant episodes. Snowfall reaching the local warning threshold without the other hazards of a winter storm.

The most significant on the map

The most significant heavy snow episodes in Illinois.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar

The record

Events
1,512
Deaths
16
Injuries
31
Damage
$460,000

Every year

The most significant

Ranked by deaths, injuries, damage and size together.

More

Heavy Snow everywhereEvery kind of event 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.