TornadoLookup
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Jefferson storm history

Storm events recorded in Jefferson, Illinois between 1950 and 2025.

810
Total events
31
Tornadoes
91
Hail
49
Floods
11
Deaths
$29.5M
Property damage

Most significant events

Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.

December 18, 1957 · Jefferson, Illinois
Tornado F4 Tornado1 death, 45 injuries, $2.5M damage
April 19, 1996 · Jefferson, Illinois
Tornado F3 Tornado
July 16, 2021 · Jefferson, Illinois
Flood Flood1 death
Several streets on the south side of Mt. Vernon had standing water over them. Record flooding occurred on Rayse Creek in southwest Jefferson County. A motorist drowned after driving into the creek flooding on a county road south of Woodlawn. The incident occurred during the early…
January 19, 2016 · Jefferson, Illinois
Winter Weather Winter Weather1 death, 1 injury
May 10, 2015 · Jefferson, Illinois
Thunderstorm Wind Thunderstorm Wind1 death
Numerous tree limbs and power lines were blown down, along with a couple of large trees. A large tree limb blew across two mobile homes, killing a 72-year-old man who was in the mobile home closest to the tree. The man died from blunt-force trauma caused by the tree limb, which w…
March 23, 2012 · Jefferson, Illinois
Tornado EF2 Tornado1 death, 2 injuries
A tied down double wide mobile home was destroyed. A elderly lady was killed and a teenage boy was injured when the mobile home was lofted by the tornado and carried approximately 100 yards to the northeast, with the mobile home undercarriage carried approximately 200 yards. One …
January 12, 2012 · Jefferson, Illinois
Winter Weather Winter Weather1 death
December 12, 2010 · Jefferson, Illinois
Winter Weather Winter Weather1 death
March 18, 2008 · Jefferson, Illinois
Flood Flood2 deaths
Two persons died after their truck stalled in floodwater on a secondary road near Waltonville. The three occupants of the truck climbed on top of it. One of the victims dropped her purse in the water and dove after it. Two other occupants of the truck dove in to rescue her. One o…
January 10, 1997 · Jefferson, Illinois
Cold/Wind Chill Cold/Wind Chill1 death
March 30, 1982 · Jefferson, Illinois
Tornado F2 Tornado1 death, 3 injuries, $2.5M damage
August 9, 2010 · Jefferson, Illinois
Excessive Heat Excessive Heat7 injuries
May 25, 2011 · Jefferson, Illinois
Tornado EF2 Tornado$4.0M damage
At least three houses lost portions of roof substructure, including roof decking. Numerous other homes sustained various degrees of shingle damage. Some houses lost siding. A total of 101 residences sustained damage, with 23 of those homes deemed uninhabitable. A folded up pop-up…
July 21, 2006 · Jefferson, Illinois
Thunderstorm Wind Thunderstorm Wind5 injuries, $13.0M damage
Widespread very damaging winds, estimated around 90 MPH by a National Weather Service damage surveyor, raked most of Jefferson County. The city of Mount Vernon was especially hard hit, where about 14 percent of all homes received at least minor damage. Several thousands of trees …
May 1, 1983 · Jefferson, Illinois
Tornado F1 Tornado$2.5M damage
November 24, 2025 · Jefferson, Illinois
Dense Fog Dense Fog
November 23, 2025 · Jefferson, Illinois
Dense Fog Dense Fog
October 24, 2025 · Jefferson, Illinois
Frost/Freeze Frost/Freeze
October 1, 2025 · Jefferson, Illinois
Drought Drought
September 23, 2025 · Jefferson, Illinois
Dense Fog Dense Fog
September 9, 2025 · Jefferson, Illinois
Drought Drought
August 15, 2025 · Jefferson, Illinois
Excessive Heat Excessive Heat
July 22, 2025 · Jefferson, Illinois
Excessive Heat Excessive Heat
July 20, 2025 · Jefferson, Illinois
Excessive Heat Excessive Heat
July 16, 2025 · Jefferson, Illinois
Heat Heat
July 10, 2025 · Jefferson, Illinois
Dense Fog Dense Fog
May 5, 2025 · Jefferson, Illinois
Dense Fog Dense Fog
March 30, 2025 · Jefferson, Illinois
Hail Hail
Nickel size hail fell in Dix.
March 30, 2025 · Jefferson, Illinois
Hail Hail
Quarter size hail fell for about five minutes and nearly covered the ground on the south side of Mt Vernon.
March 28, 2025 · Jefferson, Illinois
Strong Wind Strong Wind
March 19, 2025 · Jefferson, Illinois
Strong Wind Strong Wind
March 14, 2025 · Jefferson, Illinois
Strong Wind Strong Wind
February 21, 2025 · Jefferson, Illinois
Cold/Wind Chill Cold/Wind Chill
February 20, 2025 · Jefferson, Illinois
Cold/Wind Chill Cold/Wind Chill
February 18, 2025 · Jefferson, Illinois
Winter Weather Winter Weather
February 16, 2025 · Jefferson, Illinois
Winter Weather Winter Weather
January 31, 2025 · Jefferson, Illinois
Dense Fog Dense Fog
January 19, 2025 · Jefferson, Illinois
Cold/Wind Chill Cold/Wind Chill
January 10, 2025 · Jefferson, Illinois
Heavy Snow Heavy Snow1 injury
January 5, 2025 · Jefferson, Illinois
Winter Storm Winter Storm
December 2, 2024 · Jefferson, Illinois
Winter Weather Winter Weather
November 30, 2024 · Jefferson, Illinois
Winter Weather Winter Weather
October 17, 2024 · Jefferson, Illinois
Frost/Freeze Frost/Freeze
October 16, 2024 · Jefferson, Illinois
Frost/Freeze Frost/Freeze
August 1, 2024 · Jefferson, Illinois
Excessive Heat Excessive Heat
August 1, 2024 · Jefferson, Illinois
Flood Flood
Minor street flooding occurred in Mount Vernon as a quick inch of rainfall, based on radar estimates, fell within an hour.
July 29, 2024 · Jefferson, Illinois
Excessive Heat Excessive Heat
July 29, 2024 · Jefferson, Illinois
Thunderstorm Wind Thunderstorm Wind
Trees and power lines were downed by thunderstorm winds near Dix.
July 29, 2024 · Jefferson, Illinois
Hail Hail
Hail measured to nickel size fell on the southwest side of Mount Vernon.
July 16, 2024 · Jefferson, Illinois
Flash Flood Flash Flood
Extensive street flooding occurred in Mount Vernon. IL-15 became impassable due to high water just east of Woodlawn. Radar estimated rainfall totals in Mount Vernon were 2.5-4 inches, while totals in western portions of Jefferson County reached 5-7 inches.

Events by year

YearEventsTornadoes
2025250
2024361
2023250
2022280
2021210
2020221
2019280
2018320
2017281
2016280
2015260
2014292
2013321
2012311
2011483
2010301
2009262
2008411
2007280
2006270
2005261
2004251
2003130
2002161
2001171
2000140
1999180
1998151
1997110
1996171
199551
199430
199120
198920
198620
198410
198321
198251
198110
197910
197620
197510
197450
197311
197210
196910
196710
196611
196510
196031
195911
195744
195510