Storm History: Knox County, Illinois

Events

521

Deaths

3

Injuries

51

Damage

$58 million

Episodes

366

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 Knox County

• Thunderstorm Wind, August 23, 20071 death · 29 injured · $1.4 million · 87 kt wind · 2 events here
• Thunderstorm Wind, March 9, 20021 death · 50 kt wind · 1 event here
• Winter Weather, December 1, 20251 death · 1 event here

• Flash Flood, April 17, 2013$40 million · 1.25 in hail · 2 events here
• Tornado, June 29, 19983 injured · $3.0 million · F1 · 2 events here
• Drought, October 1, 2012$2.7 million · 1 event here
• Tornado, May 14, 19618 injured · $2.5 million · F3 · 1 event here
• Tornado, May 13, 19952 injured · $1.6 million · F4 · 1 event here
• Flood, May 16, 2009$1.5 million · 1 event here
• Thunderstorm Wind, August 23, 20071 death · 29 injured · $1.4 million · 87 kt wind · 2 events here
• Flash Flood, May 28, 2013$1.0 million · 2 events here
• Tornado, June 5, 2010$472,000 · EF2 · 2 events here
• Hail, June 18, 2009$450,000 · 2 in hail · 4 events here
• Tornado, June 18, 2021$435,000 · EF1 · 5 events here
• Ice Storm, December 28, 2015$375,000 · 1 event here
• Blizzard, February 1, 2011$300,000 · 1 event here
• Tornado, July 21, 1961$250,000 · F2 · 1 event here
• Tornado, May 7, 1967$250,000 · F1 · 1 event here
• Thunderstorm Wind, August 20, 2019$160,000 · 52 kt wind · 2 events here
• Ice Storm, December 18, 2008$150,000 · 1 event here
• Thunderstorm Wind, November 11, 2015$125,000 · 52 kt wind · 4 events here
• Flash Flood, May 29, 2011$120,000 · 1 in hail · 4 events here
• Thunderstorm Wind, May 14, 2020$120,000 · 52 kt wind · 2 events here

• Flash Flood, May 7, 20233.25 in hail · 2 events here
• Hail, April 8, 20203 in hail · 1 event here
• Hail, March 19, 20172.75 in hail · 7 events here
• Flash Flood, May 15, 20092.75 in hail · 4 events here
• Hail, March 12, 20062.75 in hail · 2 events here
• Hail, July 11, 2020$40,000 · 2.5 in hail · 1 event here
• Hail, June 18, 2009$450,000 · 2 in hail · 4 events here
• Hail, May 13, 20082 in hail · 2 events here
• Flash Flood, June 4, 20022 in hail · 1 event here
• Hail, April 30, 19732 in hail · 2 events here
• Hail, May 2, 20241.75 in hail · 1 event here
• Flash Flood, June 25, 20241.75 in hail · 2 events here
• Hail, June 25, 20241.75 in hail · 3 events here
• Hail, June 30, 2019$2,000 · 1.75 in hail · 2 events here
• Flash Flood, June 10, 2015$30,000 · 1.75 in hail · 7 events here

• Tornado, May 5, 1977F4 · 1 event here
• Tornado, May 13, 19952 injured · $1.6 million · F4 · 1 event here
• Tornado, May 14, 19618 injured · $2.5 million · F3 · 1 event here
• Tornado, June 14, 19741 injured · F3 · 3 events here
• Tornado, March 4, 1976$25,000 · F3 · 1 event here
• Tornado, November 15, 1988F3 · 1 event here
• Tornado, March 27, 1991F3 · 1 event here
• Tornado, May 9, 1995F3 · 1 event here
• Tornado, May 10, 2003F3 · 1 event here
• Tornado, February 28, 2017EF3 · 4 events here
• Tornado, March 31, 2023EF3 · 2 events here
• Tornado, June 17, 2026EF3 · 2 events here
• Tornado, July 21, 1961$250,000 · F2 · 1 event here
• Tornado, March 23, 19752 injured · $25,000 · F2 · 1 event here
• Tornado, June 14, 1975F2 · 1 event here

Every tornado in Knox County, with its track

• Tornado, June 17, 2026EF3 · 2 events here
• Flash Flood, June 10, 20261 event here
• Flash Flood, June 8, 20261 event here
• Thunderstorm Wind, May 16, 202670 kt wind · 1 event here
• Blizzard, March 15, 20261 event here
• Winter Weather, March 15, 20261 event here
• Tornado, March 10, 2026EF1 · 4 events here
• Drought, March 1, 20261 event here
• Drought, February 1, 20261 event here
• Extreme Cold/Wind Chill, January 23, 20261 event here
• Heavy Snow, December 13, 20251 event here
• Drought, December 1, 20251 event here
• Winter Weather, December 1, 20251 death · 1 event here
• Heavy Snow, November 29, 20251 event here
• Drought, November 1, 20251 event here
• Drought, October 1, 20251 event here
• Thunderstorm Wind, August 18, 202561 kt wind · 1 event here
• Tornado, May 20, 2025EF1 · 1 event here
• Tornado, April 20, 2025EF1 · 3 events here
• Tornado, March 14, 2025EF2 · 1 event here
• Winter Weather, February 12, 20251 event here
• Extreme Cold/Wind Chill, January 21, 20251 event here
• Winter Weather, December 14, 20241 event here
• Excessive Heat, August 27, 20241 event here
• Tornado, August 15, 2024EF1 · 2 events here
• Tornado, July 15, 2024EF1 · 5 events here
• Hail, June 25, 20241.75 in hail · 3 events here
• Flash Flood, June 25, 20241.75 in hail · 2 events here
• Hail, May 2, 20241.75 in hail · 1 event here
• Hail, March 4, 20241 in hail · 1 event here
• Hail, February 22, 20241.25 in hail · 1 event here
• Tornado, February 8, 2024EF1 · 1 event here
• Ice Storm, January 22, 20241 event here
• Extreme Cold/Wind Chill, January 13, 20241 event here
• Heavy Snow, January 12, 20241 event here
• Heavy Snow, January 8, 20241 event here
• Excessive Heat, August 20, 20231 event here
• Flood, August 11, 202356 kt wind · 2 events here
• Excessive Heat, July 27, 20231 event here
• Hail, July 14, 20231 in hail · 2 events here
• Tornado, June 29, 2023EF2 · 4 events here
• Drought, June 12, 20231 event here
• Flash Flood, May 7, 20233.25 in hail · 2 events here
• Tornado, March 31, 2023EF3 · 2 events here
• Extreme Cold/Wind Chill, December 23, 20221 event here
• Winter Storm, December 22, 20221 event here
• Thunderstorm Wind, November 5, 202259 kt wind · 1 event here
• Flash Flood, August 2, 20221 in hail · 1 event here
• Tornado, August 1, 2022EF1 · 1 event here
• Flash Flood, July 8, 20221.25 in hail · 2 events here
• Thunderstorm Wind, July 5, 202252 kt wind · 1 event here
• Flash Flood, June 6, 20221 event here
• Tornado, March 5, 2022EF0 · 1 event here
• Heavy Snow, February 17, 20221 event here
• Winter Storm, February 1, 20221 event here
• Heavy Snow, January 1, 20221 event here
• Tornado, June 18, 2021$435,000 · EF1 · 5 events here
• Extreme Cold/Wind Chill, February 13, 20211 event here
• Winter Weather, January 25, 20211 event here
• Ice Storm, January 1, 20211 event here
• Hail, November 10, 20201 in hail · 1 event here
• Hail, August 10, 2020$100,000 · 70 kt wind · 1 event here
• Hail, July 11, 2020$40,000 · 2.5 in hail · 1 event here
• Flash Flood, July 9, 2020$50,000 · 52 kt wind · 2 events here
• Flash Flood, June 22, 2020$25,000 · 52 kt wind · 2 events here
• Flash Flood, May 25, 20201 in hail · 1 event here
• Thunderstorm Wind, May 14, 2020$120,000 · 52 kt wind · 2 events here
• Winter Weather, April 16, 20201 event here
• Hail, April 8, 20203 in hail · 1 event here
• Hail, April 7, 20201.5 in hail · 1 event here
• Tornado, March 28, 2020EF1 · 1 event here
• High Wind, November 27, 20191 event here
• Tornado, September 27, 2019EF0 · 2 events here
• Thunderstorm Wind, August 20, 2019$160,000 · 52 kt wind · 2 events here
• Hail, June 30, 2019$2,000 · 1.75 in hail · 2 events here
• Tornado, June 15, 2019EF1 · 1 event here
• Flash Flood, May 28, 20191 in hail · 1 event here
• Tornado, May 27, 2019EF0 · 1 event here
• Tornado, May 24, 2019EF0 · 1 event here
• Hail, April 11, 20190.75 in hail · 1 event here
• Ice Storm, February 11, 20191 event here
• Winter Storm, January 18, 20191 event here
• Heavy Snow, January 11, 20191 event here
• Blizzard, November 25, 20181 event here
• Flash Flood, September 7, 20181 event here
• Flash Flood, June 20, 2018$55,000 · 52 kt wind · 1 event here
• Thunderstorm Wind, June 19, 201852 kt wind · 1 event here
• Hail, June 10, 201852 kt wind · 1 event here
• Hail, May 26, 20181 in hail · 1 event here
• Hail, May 13, 20181.25 in hail · 2 events here
• Heavy Snow, February 5, 20181 event here
• Flash Flood, October 14, 2017$45,000 · 61 kt wind · 4 events here
• Thunderstorm Wind, July 10, 201752 kt wind · 1 event here
• Strong Wind, June 28, 2017$1,000 · 1 event here
• Tornado, May 23, 2017EF0 · 1 event here
• Hail, May 17, 2017$15,000 · 1.5 in hail · 2 events here
• Hail, March 19, 20172.75 in hail · 7 events here
• Tornado, March 6, 2017$23,000 · EF2 · 4 events here
• Tornado, February 28, 2017EF3 · 4 events here
• Hail, October 6, 20160.88 in hail · 1 event here
• Thunderstorm Wind, September 21, 2016$18,000 · 52 kt wind · 1 event here
• Thunderstorm Wind, September 7, 2016$100,000 · 78 kt wind · 1 event here
• Thunderstorm Wind, July 19, 2016$25,000 · 52 kt wind · 1 event here
• Thunderstorm Wind, July 13, 2016$27,000 · 78 kt wind · 2 events here
• Thunderstorm Wind, July 10, 2016$60,000 · 52 kt wind · 1 event here
• Thunderstorm Wind, July 6, 2016$6,000 · 52 kt wind · 1 event here
• Hail, June 15, 20161 in hail · 1 event here
• Hail, May 28, 2016$50,000 · 61 kt wind · 2 events here
• Ice Storm, December 28, 2015$375,000 · 1 event here
• Winter Storm, November 20, 20151 event here
• Thunderstorm Wind, November 11, 2015$125,000 · 52 kt wind · 4 events here
• Tornado, July 16, 2015$35,000 · EF2 · 3 events here
• Tornado, July 11, 2015EF0 · 1 event here
• Hail, June 20, 2015$69,000 · 52 kt wind · 5 events here
• Flash Flood, June 14, 20151 event here
• Flash Flood, June 10, 2015$30,000 · 1.75 in hail · 7 events here
• Tornado, June 7, 2015EF0 · 1 event here
• Heavy Snow, February 1, 20151 event here
• Extreme Cold/Wind Chill, January 7, 20151 event here
• Heavy Snow, January 5, 20151 event here
• Flash Flood, September 10, 2014$8,000 · 61 kt wind · 1 event here
• Flash Flood, September 4, 20141 event here
• Hail, August 4, 20141 in hail · 1 event here
• Hail, June 22, 2014$4,000 · 1 in hail · 1 event here
• Hail, June 21, 2014$12,000 · 1.75 in hail · 1 event here
• Hail, May 8, 2014$25,000 · 52 kt wind · 1 event here
• Hail, April 28, 20141 in hail · 2 events here
• Hail, April 3, 20141 in hail · 2 events here
• Winter Storm, February 1, 20141 event here
• Extreme Cold/Wind Chill, January 27, 20141 event here
• Extreme Cold/Wind Chill, January 6, 20141 event here
• Heavy Snow, January 4, 20141 event here
• Heavy Snow, December 13, 20131 event here
• Thunderstorm Wind, September 8, 2013$30,000 · 52 kt wind · 1 event here
• Hail, June 24, 2013$9,000 · 1 in hail · 2 events here
• Flash Flood, May 28, 2013$1.0 million · 2 events here
• Flash Flood, May 26, 20132 events here
• Flash Flood, April 18, 20131 event here
• Flash Flood, April 17, 2013$40 million · 1.25 in hail · 2 events here
• Heavy Snow, February 26, 20131 event here
• Blizzard, December 20, 20121 event here
• Drought, October 1, 2012$2.7 million · 1 event here
• Hail, September 7, 20121 in hail · 1 event here
• Drought, September 1, 20121 event here
• Drought, August 1, 20121 event here
• Excessive Heat, July 1, 20121 event here
• Drought, July 1, 20121 event here
• Excessive Heat, June 29, 20121 event here
• Hail, June 16, 20121.5 in hail · 5 events here
• Tornado, May 6, 2012EF0 · 1 event here
• Hail, April 1, 20121.75 in hail · 1 event here
• Hail, September 3, 2011$20,000 · 1.75 in hail · 2 events here
• Thunderstorm Wind, August 20, 2011$3,000 · 70 kt wind · 1 event here
• Excessive Heat, August 1, 20111 event here
• Thunderstorm Wind, July 29, 2011$100,000 · 61 kt wind · 2 events here
• Flash Flood, June 14, 201161 kt wind · 1 event here
• Flash Flood, May 29, 2011$120,000 · 1 in hail · 4 events here
• Tornado, May 25, 2011EF2 · 4 events here
• Hail, May 22, 2011$15,000 · 1.75 in hail · 5 events here
• Hail, May 11, 2011$40,000 · 1.75 in hail · 2 events here
• Blizzard, February 1, 2011$300,000 · 1 event here
• Winter Weather, January 11, 20111 event here
• Blizzard, December 12, 20101 event here
• Hail, November 22, 2010$45,000 · 1 in hail · 4 events here
• Excessive Heat, August 9, 20101 event here
• Flash Flood, June 23, 2010$25,000 · 61 kt wind · 2 events here
• Flash Flood, June 22, 20101 event here
• Flash Flood, June 18, 2010$95,000 · 52 kt wind · 4 events here
• Tornado, June 5, 2010$472,000 · EF2 · 2 events here
• Flash Flood, June 1, 201070 kt wind · 1 event here
• Flash Flood, May 13, 201052 kt wind · 1 event here
• Hail, May 6, 2010$2,000 · 1 in hail · 1 event here
• Winter Storm, February 21, 20101 event here
• Winter Storm, February 8, 20101 event here
• Ice Storm, January 20, 20101 event here
• Winter Storm, January 6, 20101 event here
• Hail, August 4, 2009$2,000 · 61 kt wind · 1 event here
• Hail, July 24, 2009$1,000 · 1 in hail · 1 event here
• Hail, June 27, 2009$20,000 · 52 kt wind · 1 event here
• Tornado, June 19, 2009$117,000 · EF0 · 3 events here
• Hail, June 18, 2009$450,000 · 2 in hail · 4 events here
• Flash Flood, June 1, 2009$7,000 · 1.75 in hail · 3 events here
• Flood, May 16, 2009$1.5 million · 1 event here
• Flash Flood, May 15, 20092.75 in hail · 4 events here
• Winter Weather, March 29, 20091 event here
• High Wind, March 24, 200952 kt wind · 1 event here
• Flood, March 10, 20091 event here
• Flood, March 9, 20091 event here
• Hail, March 8, 2009$8,000 · 1 in hail · 1 event here
• Extreme Cold/Wind Chill, January 15, 20091 event here
• Flash Flood, December 27, 2008$20,000 · 61 kt wind · 1 event here
• Ice Storm, December 18, 2008$150,000 · 1 event here
• Thunderstorm Wind, August 5, 2008$10,000 · 61 kt wind · 1 event here
• Hail, August 3, 20080.88 in hail · 1 event here
• Tornado, July 21, 2008EF1 · 1 event here
• Thunderstorm Wind, July 21, 200870 kt wind · 2 events here
• Thunderstorm Wind, June 8, 2008$25,000 · 52 kt wind · 2 events here
• Hail, May 13, 20082 in hail · 2 events here
• Dense Fog, February 4, 20081 event here
• Ice Storm, December 1, 20071 event here
• Thunderstorm Wind, August 23, 20071 death · 29 injured · $1.4 million · 87 kt wind · 2 events here
• Hail, August 8, 20070.75 in hail · 1 event here
• Hail, June 21, 200752 kt wind · 4 events here
• Frost/Freeze, April 5, 20071 event here
• Ice Storm, February 24, 20071 event here
• Blizzard, February 12, 20071 event here
• Ice Storm, January 12, 20071 event here
• Winter Storm, December 1, 20061 event here
• Winter Storm, November 29, 20061 event here
• Hail, August 2, 200658 kt wind · 1 event here
• Heat, August 1, 20061 event here
• Heat, July 30, 20061 event here
• Hail, July 19, 20061.5 in hail · 1 event here
• Hail, June 27, 20060.75 in hail · 1 event here
• Tornado, April 16, 2006F2 · 1 event here
• Tornado, April 13, 2006F0 · 8 events here
• Hail, March 12, 20062.75 in hail · 2 events here
• Hail, March 11, 20061.75 in hail · 3 events here
• Hail, September 18, 20051.75 in hail · 2 events here
• Thunderstorm Wind, August 18, 200555 kt wind · 1 event here
• Thunderstorm Wind, August 11, 200552 kt wind · 1 event here
• Heat, July 22, 20051 event here
• Tornado, June 8, 20052 injured · F0 · 2 events here
• Tornado, March 30, 2005F1 · 2 events here
• Ice Storm, January 5, 20051 event here
• Winter Storm, November 24, 20041 event here
• Hail, October 29, 20041.75 in hail · 1 event here
• Hail, August 18, 20041.75 in hail · 1 event here
• Flash Flood, July 22, 20041 event here
• Flash Flood, July 11, 200460 kt wind · 1 event here
• Flash Flood, July 9, 20041.75 in hail · 2 events here
• Tornado, May 30, 2004F1 · 3 events here
• Tornado, May 7, 2004F0 · 1 event here
• Tornado, April 20, 2004F1 · 1 event here
• High Wind, March 5, 200450 kt wind · 1 event here
• Ice Storm, January 4, 20041 event here
• High Wind, November 12, 20031 event here
• Thunderstorm Wind, August 11, 200355 kt wind · 1 event here
• Flash Flood, July 21, 200360 kt wind · 1 event here
• Tornado, July 8, 2003F0 · 1 event here
• Thunderstorm Wind, June 25, 200361 kt wind · 1 event here
• Tornado, May 10, 2003F3 · 1 event here
• Tornado, May 9, 2003F0 · 1 event here
• Tornado, April 30, 2003F0 · 4 events here
• Winter Storm, February 14, 20031 event here
• Thunderstorm Wind, February 11, 200354 kt wind · 1 event here
• Flash Flood, July 26, 200255 kt wind · 1 event here
• Tornado, June 12, 2002F0 · 2 events here
• Flash Flood, June 4, 20022 in hail · 1 event here
• Flash Flood, May 11, 20021.5 in hail · 2 events here

Earlier years, state by state:

• 2002
• 2001
• 2000
• 1999
• 1998
• 1997
• 1996
• 1995
• 1994
• 1993
• 1992
• 1991
• 1990
• 1989
• 1988
• 1987
• 1986
• 1985
• 1983
• 1981
• 1977
• 1976
• 1975
• 1974
• 1973
• 1971
• 1967
• 1965
• 1961

Tornadoes in Knox CountyEvery warning in Knox County since 1986Every county in Illinois

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.