Kendall County, Illinois tornadoes

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32confirmed tornadoes since NOAA records began in 1950 (the first here in 1954). Most recent: March 14, 2025, EF0. 2026 so far: 1 preliminary report preliminary

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Map

Every tornado path in the county

Tornado paths, 1950 to 2025
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(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5Unrated

Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.

The record

At a glance

Total321950 to 2025
Per year0.4average since 1950
Peak monthJuly9 of 32
StrongestF5Aug 28, 1990
Deaths30whole paths, see note
Injuries361whole paths, see note

Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond Kendall County.

Seasons

When tornadoes hit here

By month

90 Jan: 0Feb: 1Mar: 4Apr: 2May: 7Jun: 4Jul: 9Aug: 3Sep: 1Oct: 0Nov: 1Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

July is the peak month, with 9 of 32 tornadoes.

By time of day

40 12 AM: 0: 0: 13 AM: 0: 0: 06 AM: 0: 0: 19 AM: 2: 1: 012 PM: 4: 1: 43 PM: 0: 1: 16 PM: 4: 3: 49 PM: 4: 1: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 12:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

80 1950: 0: 0: 0: 0: 1: 0: 0: 0: 1: 11960: 0: 0: 0: 0: 0: 0: 0: 0: 0: 01970: 0: 0: 1: 0: 0: 0: 1: 2: 0: 01980: 0: 0: 0: 0: 1: 0: 0: 0: 0: 11990: 1: 0: 0: 0: 0: 0: 0: 0: 0: 02000: 0: 0: 0: 4: 0: 0: 0: 0: 0: 02010: 0: 0: 0: 0: 1: 0: 0: 0: 0: 12020: 3: 0: 1: 8: 3: 119501960197019801990200020102020

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones. This year so far: 1 preliminary reports.

By rating

EF0
19
EF1
7
EF2
2
EF3
2
EF5
1
Unknown
1

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

The record

Notable tornadoes

Deadliest

F5, August 28, 1990

29 deaths, 350 injuries Strongest

F5, August 28, 1990

16.4 mile path Longest path

74.5 miles, F2

August 15, 1958, whole path Widest

600 yards, F5

August 28, 1990
Every tornado

All 32 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Mar 14, 2025EF03.64 mi125 yd00
Jul 15, 2024EF017 mi300 yd00
Jul 15, 2024EF119.5 mi250 yd02
Jul 15, 2024EF119.2 mi200 yd00
Jul 28, 2023EF17.57 mi225 yd00
Jul 28, 2023EF01 mi20 yd00
Jul 28, 2023EF04.89 mi80 yd00
Jul 28, 2023EF00.78 mi20 yd00
Jul 12, 2023EF04.14 mi100 yd00
Mar 31, 2023EF04.72 mi250 yd00
Mar 31, 2023EF05.6 mi200 yd00
Feb 27, 2023EF02.2 mi100 yd00
Nov 5, 2022EF03.7 mi100 yd00
Aug 10, 2020EF114.45 mi250 yd00
May 23, 2020EF06.3 mi100 yd01
May 17, 2020EFU0.69 mi25 yd00
May 27, 2019EF00.97 mi30 yd00
Jun 30, 2014EF11.15 mi50 yd00
Jul 27, 2003F01 mi100 yd00
May 30, 2003F03.5 mi100 yd00
May 30, 2003F02.5 mi100 yd00
May 28, 2003F01 mi50 yd00
Aug 28, 1990F516.4 mi600 yd29350
Jun 5, 1989F00.1 mi10 yd00
Apr 27, 1984F39 mi200 yd15
This year

2026 preliminary reports not yet confirmed

Report dateLocationRating
Aug 11, 20262 W OswegoNot yet rated

Preliminary reports from the Storm Prediction Center. One tornado can be reported more than once, and NOAA confirms the final record months later.

Nearby

Nearby counties

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 12, 2026.