Storms in Illinois in 2021
Every storm the National Weather Service filed in Illinois in 2021, with each episode’s narrative and every event in it. 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.
Illinois in 2021 on the map
Every episode with a place to put it, colored by kind of event.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The year
- Events
- 1,618
- Deaths
- 21
- Injuries
- 21
- Damage
- $39 million
- Episodes
- 213
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.
By kind of event
| Kind of event | Events | Deaths | Injuries | Damage |
|---|---|---|---|---|
| Thunderstorm Wind | 573 | 2 | 2 | $237,000 |
| Winter Weather | 171 | 1 | 0 | |
| Hail | 99 | 0 | 0 | $2.6 million |
| Winter Storm | 97 | 1 | 1 | $20,000 |
| Tornado | 82 | 6 | 15 | $10 million |
| Cold/Wind Chill | 77 | 3 | 0 | |
| Flash Flood | 66 | 1 | 0 | $26 million |
| Dense Fog | 63 | 0 | 0 | |
| Frost/Freeze | 57 | 0 | 0 | |
| Heat | 57 | 0 | 0 | |
| Flood | 51 | 0 | 0 | $39,000 |
| Drought | 45 | 0 | 0 | |
| Heavy Snow | 43 | 0 | 0 | |
| Strong Wind | 41 | 0 | 1 | $40,000 |
| High Wind | 36 | 0 | 0 | |
| Ice Storm | 18 | 0 | 0 | |
| Heavy Rain | 13 | 4 | 1 | |
| Funnel Cloud | 12 | 0 | 0 | |
| Extreme Cold/Wind Chill | 10 | 0 | 0 | |
| Rip Current | 3 | 3 | 1 | |
| Excessive Heat | 2 | 0 | 0 | |
| Lightning | 1 | 0 | 0 | |
| Lakeshore Flood | 1 | 0 | 0 |
Every episode, month by month
January 2021
- Winter Weather in Illinois, January 1, 2021
- Winter Storm in Illinois, January 1, 2021
- Ice Storm and Winter Weather in Illinois, January 1, 2021
- Winter Storm and Winter Weather in Illinois, January 1 to 2, 2021
- Ice Storm and Winter Weather in Illinois, January 1, 2021
- Heavy Snow in Illinois, January 2 to 3, 2021
- Cold in Illinois, January 18 to 19, 2021
- Winter Weather in Illinois, January 19, 2021
- Cold in Illinois, January 20, 2021
- Winter Storm and Winter Weather in Illinois, January 25 to 26, 2021
- Winter Storm and Winter Weather in Illinois, January 25 to 26, 2021
- Winter Weather in Illinois, January 25 to 26, 2021
- Winter Weather in Illinois, January 27, 2021
- Winter Weather in Illinois, January 27, 2021
- Winter Storm and Winter Weather in Illinois, January 30 to 31, 2021
- Winter Storm and Winter Weather in Illinois, January 30 to 31, 2021
February 2021
- Cold in Illinois, February 3, 2021
- Winter Storm in Illinois, February 4, 2021
- Winter Storm and Winter Weather in Illinois, February 4 to 5, 2021
- Winter Weather in Illinois, February 8 to 9, 2021
- Winter Storm and Winter Weather in Illinois, February 10 to 11, 2021
- Extreme Cold and Cold in Illinois, February 13 to 14, 2021
- Extreme Cold in Illinois, February 13 to 15, 2021
- Cold in Illinois, February 14, 2021
- Cold in Illinois, February 14 to 15, 2021
- Heavy Snow in Illinois, February 14 to 16, 2021
- Heavy Snow in Illinois, February 14 to 15, 2021
- Winter Storm in Illinois, February 14 to 15, 2021
- Winter Storm and Winter Weather in Illinois, February 15 to 16, 2021
- Cold in Illinois, February 16, 2021
- Winter Weather in Illinois, February 17 to 18, 2021
- Flood in Illinois, February 28, 2021
March 2021
- Flooding in Illinois, March 1 to 31, 2021
- Strong Wind in Illinois, March 10, 2021
- High Wind in Illinois, March 10 to 11, 2021
- Flash Flood and Flood in Illinois, March 11, 2021
- Flooding in Illinois, March 15 to 31, 2021
- Winter Storm and Winter Weather in Illinois, March 15, 2021
- High Wind in Illinois, March 15, 2021
- Dense Fog in Illinois, March 16, 2021
- Flooding in Illinois, March 18 to 27, 2021
- Tornado in Illinois, March 23, 2021
- Tornado in Illinois, March 23, 2021
- Strong Wind in Illinois, March 25, 2021
- Tornado and Hail in Illinois, March 27, 2021
- Hail and Damaging Winds in Illinois, March 27, 2021
April 2021
- Flooding in Illinois, April 1 to 10, 2021
- Frost and Freeze in Illinois, April 1 to 3, 2021
- Damaging Winds in Illinois, April 7, 2021
- Damaging Winds in Illinois, April 7, 2021
- Damaging Winds in Illinois, April 7, 2021
- Hail and Damaging Wind in Illinois, April 9, 2021
- Damaging Wind in Illinois, April 9, 2021
- Frost and Freeze in Illinois, April 19 to 21, 2021
- Dense Fog in Illinois, April 25, 2021
- Strong Wind in Illinois, April 27, 2021
- Damaging Wind in Illinois, April 28, 2021
- Tornado in Illinois, April 28, 2021
- Damaging Winds in Illinois, April 29, 2021
May 2021
- High Wind in Illinois, May 1, 2021
- Hail and Damaging Wind in Illinois, May 3, 2021
- Tornadoes and Hail in Illinois, May 3, 2021
- Tornadoes and Hail in Illinois, May 6, 2021
- Tornado and Hail in Illinois, May 6, 2021
- Hail and Damaging Wind in Illinois, May 9, 2021
- Strong Wind in Illinois, May 9, 2021
- Damaging Wind in Illinois, May 16, 2021
- Drought in Illinois, May 18 to 31, 2021
- Damaging Wind in Illinois, May 25, 2021
- Tornadoes and Damaging Winds in Illinois, May 27, 2021
- Hail and Damaging Winds in Illinois, May 27, 2021
- Damaging Winds in Illinois, May 27, 2021
- Strong Wind in Illinois, May 28, 2021
June 2021
- Drought in Illinois, June 1 to 30, 2021
- Flash Flood in Illinois, June 3, 2021
- Funnel Clouds in Illinois, June 8, 2021
- Damaging Winds and Heavy Rain in Illinois, June 11, 2021
- Flood and Hail in Illinois, June 12, 2021
- Damaging Winds in Illinois, June 12, 2021
- Hail and Damaging Winds in Illinois, June 12, 2021
- Hail and Damaging Winds in Illinois, June 18, 2021
- Tornado and Hail in Illinois, June 18 to 19, 2021
- Damaging Winds in Illinois, June 18, 2021
- Damaging Wind in Illinois, June 19, 2021
- Flash Flooding and Hail in Illinois, June 19, 2021
- Hail and Damaging Winds in Illinois, June 20, 2021
- Tornadoes and Flooding in Illinois, June 20 to 21, 2021
- Flood and Heavy Rain in Illinois, June 24, 2021
- Tornado and Damaging Wind in Illinois, June 24, 2021
- Damaging Wind in Illinois, June 24, 2021
- Tornadoes in Illinois, June 25, 2021
- Tornado in Illinois, June 25, 2021
- Flash Flooding in Illinois, June 25 to 26, 2021
- Tornado and Flash Flood in Illinois, June 25 to 26, 2021
- Tornadoes and Flash Flooding in Illinois, June 26, 2021
- Tornado and Damaging Winds in Illinois, June 26, 2021
- Flood in Illinois, June 27 to 28, 2021
- Damaging Winds in Illinois, June 28, 2021
- Damaging Wind in Illinois, June 29, 2021
- Flood in Illinois, June 29, 2021
- Flood in Illinois, June 30, 2021
- Flash Flood in Illinois, June 30, 2021
July 2021
- Drought in Illinois, July 1 to 31, 2021
- Funnel Clouds in Illinois, July 7, 2021
- Heavy Rain in Illinois, July 7, 2021
- Damaging Wind in Illinois, July 8, 2021
- Hail and Damaging Winds in Illinois, July 9, 2021
- Hail and Damaging Winds in Illinois, July 9 to 10, 2021
- Damaging Wind in Illinois, July 9, 2021
- Tornadoes and Flash Flood in Illinois, July 10, 2021
- Damaging Winds in Illinois, July 10, 2021
- Damaging Winds in Illinois, July 10, 2021
- Flash Flooding in Illinois, July 11, 2021
- Flash Flooding in Illinois, July 11, 2021
- Tornado in Illinois, July 12, 2021
- Flash Flooding and Flooding in Illinois, July 12 to 13, 2021
- Damaging Winds in Illinois, July 14, 2021
- Damaging Winds in Illinois, July 14 to 15, 2021
- Flash Flooding in Illinois, July 15, 2021
- Hail in Illinois, July 15, 2021
- Hail in Illinois, July 15, 2021
- Damaging Wind in Illinois, July 15, 2021
- Flash Flooding in Illinois, July 15 to 16, 2021
- Flash Flood in Illinois, July 16, 2021
- Flood in Illinois, July 16 to 17, 2021
- Flash Flooding and Flooding in Illinois, July 16 to 24, 2021
- Flood and Damaging Winds in Illinois, July 24, 2021
- Flash Flood in Illinois, July 25, 2021
- Damaging Winds and Lightning Strike in Illinois, July 28, 2021
- Damaging Winds in Illinois, July 29, 2021
- Heat in Illinois, July 29, 2021
- Tornadoes in Illinois, July 29, 2021
- Damaging Wind in Illinois, July 29, 2021
- Flash Flood in Illinois, July 31, 2021
August 2021
- Drought in Illinois, August 1 to 31, 2021
- Damaging Winds in Illinois, August 8, 2021
- Flash Flood and Damaging Winds in Illinois, August 8, 2021
- Flash Flood in Illinois, August 9, 2021
- Flood in Illinois, August 9, 2021
- Heat in Illinois, August 9 to 12, 2021
- Tornadoes and Flooding in Illinois, August 9, 2021
- Tornadoes and Damaging Wind in Illinois, August 9, 2021
- Excessive Heat in Illinois, August 10 to 12, 2021
- Damaging Winds in Illinois, August 10, 2021
- Tornado and Flood in Illinois, August 10, 2021
- Hail and Damaging Winds in Illinois, August 11, 2021
- Damaging Winds in Illinois, August 11, 2021
- Damaging Winds in Illinois, August 11 to 12, 2021
- Flash Flood and Flood in Illinois, August 12 to 13, 2021
- Flash Flooding and Hail in Illinois, August 12, 2021
- Damaging Winds in Illinois, August 12, 2021
- Damaging Winds in Illinois, August 12, 2021
- Flood in Illinois, August 18, 2021
- Funnel Cloud in Illinois, August 19, 2021
- Flash Flood in Illinois, August 21, 2021
- Damaging Wind in Illinois, August 21, 2021
- Dense Fog in Illinois, August 22, 2021
- Rip Currents in Illinois, August 22, 2021
- Damaging Wind in Illinois, August 23, 2021
- Damaging Wind in Illinois, August 23, 2021
- Damaging Wind in Illinois, August 23, 2021
- Damaging Winds in Illinois, August 23, 2021
- Heat in Illinois, August 24 to 29, 2021
- Damaging Winds in Illinois, August 24, 2021
- Flash Flooding and Flooding in Illinois, August 24, 2021
- Damaging Winds in Illinois, August 24, 2021
- Hail and Damaging Wind in Illinois, August 25, 2021
- Tornadoes and Hail in Illinois, August 25, 2021
- Flood and Hail in Illinois, August 25, 2021
- Damaging Winds in Illinois, August 26, 2021
- Flash Flood and Damaging Wind in Illinois, August 26, 2021
- Damaging Wind in Illinois, August 29, 2021
- Flash Flood in Illinois, August 30, 2021
- Flash Flood in Illinois, August 30, 2021
- Flash Flood in Illinois, August 31, 2021
September 2021
- Drought in Illinois, September 1 to 30, 2021
- Flash Flood in Illinois, September 1, 2021
- Hail and Damaging Winds in Illinois, September 7, 2021
- Hail in Illinois, September 7, 2021
- Hail and Damaging Winds in Illinois, September 7, 2021
- Damaging Wind in Illinois, September 14, 2021
- Rip Current in Illinois, September 18, 2021
October 2021
- Drought in Illinois, October 1 to 31, 2021
- Tornado in Illinois, October 3, 2021
- Flash Flood and Hail in Illinois, October 7, 2021
- Dense Fog in Illinois, October 8, 2021
- Tornado and Damaging Winds in Illinois, October 10 to 11, 2021
- Strong Wind in Illinois, October 11, 2021
- Tornado and Damaging Wind in Illinois, October 11, 2021
- Tornadoes and Flood in Illinois, October 11, 2021
- Tornadoes and Hail in Illinois, October 11, 2021
- Hail in Illinois, October 24, 2021
- Flash Flooding and Flood in Illinois, October 24, 2021
- Tornadoes and Flash Flood in Illinois, October 24, 2021
- Flash Flood and Flooding in Illinois, October 24 to 25, 2021
- Damaging Wind in Illinois, October 24, 2021
November 2021
December 2021
- Drought in Illinois, December 1 to 31, 2021
- Tornado and Damaging Winds in Illinois, December 5, 2021
- Tornadoes and Damaging Winds in Illinois, December 10, 2021
- Tornadoes and Damaging Winds in Illinois, December 10, 2021
- Damaging Winds in Illinois, December 10, 2021
- Damaging Wind in Illinois, December 10, 2021
- High Wind in Illinois, December 11, 2021
- High Wind in Illinois, December 15 to 16, 2021
- Strong Wind in Illinois, December 15 to 16, 2021
- High Wind in Illinois, December 15 to 16, 2021
- Damaging Wind in Illinois, December 15, 2021
- Damaging Winds in Illinois, December 15, 2021
- Strong Wind in Illinois, December 24, 2021
- Dense Fog in Illinois, December 26, 2021
- Winter Weather in Illinois, December 28, 2021
More
Every year in IllinoisEvery state in 2021Tornadoes in Illinois in 2021Warnings in Illinois in 202120202022
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.