De Kalb County, Illinois
Tornadoes, hail, floods and severe storms recorded here between 1957 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
29
Tornado reports
89
Hail reports
47
Floods since 1996
654
All events
3
Deaths
$15.7M
Property damage
Tornado paths in De Kalb County
The part of each tornado’s path NOAA recorded in this county, 29 in all. Zoom in and the paths widen to their surveyed width.
EF0EF1EF2EF3EF4EF5Unrated
Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
This is the third segment of the Rochelle-Fairdale EF-4 tornado. At its strongest, peak winds were estimated to be 200 mph. The tornado entered the county just southwest of Fairdale before directly hitting the small community. Peak winds were estimated at 165 mph in Dekalb County…
Flash flooding or significant flooding was reported across much of DeKalb County, including street closures due to flooding, basement flooding and creek, stream and river flooding. Extensive flooding was reported in the Evergreen mobile home park near Sycamore. Street flooding wa…
Heat Heat
Hail Hail
A photo showed multiple hail stones of nickel size with one stone of quarter size near Rich Road and Schafer Road.
Thunderstorm Wind Thunderstorm Wind
Power lines were blown down near Mowers Road and Esmond Road.
Tornado EFU Tornado
Based on video from storm chasers, a tornado touched down west of Interstate 39 and north of Route 30, then crossed Interstate 39 as it moved northeast and crossed into De Kalb County north of Lee. The tornado continued northeast until it dissipated just east of Tower Road. This …
High Wind High Wind
A personal weather station measured a wind gust to 65 mph north of Leland.
Flood Flood
A few inches of standing water was reported on Quarry Road east of Fairdale Road due to flooding from farm fields and a nearby ditch. Six inches of standing water was reported on Route 72 near Ault Road.
Thunderstorm Wind Thunderstorm Wind
A personal weather station measured a wind gust to 61 mph.
Thunderstorm Wind Thunderstorm Wind
A photo showed a large tree limb blocking a roadway.
Thunderstorm Wind Thunderstorm Wind
High Wind High Wind
High Wind High Wind
High Wind High Wind
High Wind High Wind
Large branches were broken and fell onto power lines in Sandwich. The upper portion of a large tree was broken and landed on a house north of Sandwich. Nearby personal weather stations recorded gusts to between 60 and 70 mph at the time.
Thunderstorm Wind Thunderstorm Wind
Metal roofing was damaged on a building north of Leland.
Thunderstorm Wind Thunderstorm Wind
A two foot diameter tree was down and blocking the southbound lane of Somonauk Rd just north of Pratt Rd in Sandwich.
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Winter Weather Winter Weather
High Wind High Wind
Photos showed damage to siding and roofs in DeKalb as well as trees blown down. Shingle and siding damage were also reported three miles north of DeKalb.
Hail Hail
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Cold/Wind Chill Cold/Wind Chill
Winter Weather Winter Weather
Winter Weather Winter Weather
Cold/Wind Chill Cold/Wind Chill
Winter Storm Winter Storm
Winter Weather Winter Weather
Winter Storm Winter Storm
Thunderstorm Wind Thunderstorm Wind
Genoa emergency management reported tree damage around both the north and south sides of town.
Thunderstorm Wind Thunderstorm Wind
Emergency management reported many trees, power poles, and power lines down along Ash Rd between N State Rd and IL Rt. 23 north of Genoa.
Thunderstorm Wind Thunderstorm Wind
Emergency management reported a large tree down and lying across IL Rt. 23 north of IL Rt. 72 northeast of Genoa.
Thunderstorm Wind Thunderstorm Wind
Three power poles were downed along Old State Rd between Five Points Rd and Church Rd west of Sycamore.
Flash Flood Flash Flood
A video shared to social media showed at least a foot of water flowing over Chicago Rd east of Paw Paw.
Flash Flood Flash Flood
A report of flooding was received from northeast of Creston via mPing.
Flash Flood Flash Flood
A report of flooding was received from the northwest side of DeKalb via mPing.
Thunderstorm Wind Thunderstorm Wind
A softwood tree was uprooted and an 8 to 12 inch diameter limb was snapped in the vicinity of Greenbrier Rd in DeKalb.
Thunderstorm Wind Thunderstorm Wind
Heat Heat
Thunderstorm Wind Thunderstorm Wind
Trees and power lines were blown down.
Drought Drought
Excessive Heat Excessive Heat
Thunderstorm Wind Thunderstorm Wind
Five utility poles were blown down near Peace Rd and IL-38 in DeKalb.
Thunderstorm Wind Thunderstorm Wind
Power poles were downed onto Webster Rd just north of I-88.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 26 | 1 |
| 2025 | 48 | 0 |
| 2024 | 35 | 4 |
| 2023 | 25 | 1 |
| 2022 | 31 | 0 |
| 2021 | 33 | 6 |
| 2020 | 32 | 3 |
| 2019 | 15 | 0 |
| 2018 | 17 | 0 |
| 2017 | 18 | 0 |
| 2016 | 5 | 0 |
| 2015 | 11 | 2 |
| 2014 | 12 | 0 |
| 2013 | 18 | 1 |
| 2012 | 11 | 0 |
| 2011 | 16 | 1 |
| 2010 | 19 | 0 |
| 2009 | 14 | 0 |
| 2008 | 34 | 0 |
| 2007 | 31 | 0 |
| 2006 | 21 | 0 |
| 2005 | 22 | 0 |
| 2004 | 13 | 1 |
| 2003 | 18 | 1 |
| 2002 | 10 | 0 |
| 2001 | 8 | 1 |
| 2000 | 12 | 0 |
| 1999 | 10 | 0 |
| 1998 | 13 | 0 |
| 1997 | 5 | 0 |
| 1996 | 11 | 1 |
| 1995 | 2 | 0 |
| 1993 | 1 | 0 |
| 1992 | 3 | 0 |
| 1991 | 1 | 0 |
| 1990 | 5 | 0 |
| 1989 | 3 | 0 |
| 1988 | 1 | 0 |
| 1987 | 2 | 0 |
| 1986 | 2 | 0 |
| 1984 | 2 | 0 |
| 1983 | 4 | 0 |
| 1982 | 1 | 1 |
| 1981 | 2 | 0 |
| 1980 | 6 | 0 |
| 1978 | 3 | 0 |
| 1977 | 3 | 1 |
| 1976 | 2 | 0 |
| 1975 | 1 | 1 |
| 1974 | 4 | 0 |
| 1973 | 1 | 0 |
| 1972 | 2 | 1 |
| 1971 | 1 | 0 |
| 1970 | 3 | 0 |
| 1967 | 1 | 1 |
| 1965 | 1 | 0 |
| 1959 | 2 | 1 |
| 1957 | 1 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in De Kalb County, measured to its path.
We couldn’t get your location. Check that location access is allowed for this site, or type an address.