De Kalb storm history
Storm events recorded in De Kalb, Illinois between 1950 and 2025.
626
Total events
28
Tornadoes
82
Hail
46
Floods
3
Deaths
$15.7M
Property damage
Most significant events
Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.
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…
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.
Thunderstorm Wind Thunderstorm Wind
Several photos relayed on social media showed tree damage in and around DeKalb. A one foot diameter tree was snapped midway up the trunk. Live web cameras at the time the storm moved through showed considerable blowing dust as well as several gustnadoes.
Thunderstorm Wind Thunderstorm Wind
A private weather station measured a wind gust to 59 mph.
Thunderstorm Wind Thunderstorm Wind
A wind gust to 67 mph was measured.
Thunderstorm Wind Thunderstorm Wind
A 16 inch diameter tree was broken west of Kingston.
Thunderstorm Wind Thunderstorm Wind
A private weather station measured a wind gust to 69 mph.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
A tree was reported down onto overhead wires in Genoa.
Thunderstorm Wind Thunderstorm Wind
A power pole was snapped along County Line Road east of Peace Road in DeKalb.
Thunderstorm Wind Thunderstorm Wind
The roof of a farm outbuilding was lifted off and displaced to the northeast. Large sections of wall also collapsed.
Thunderstorm Wind Thunderstorm Wind
A tree branch was downed onto a power line near a grocery store in Sycamore.
Thunderstorm Wind Thunderstorm Wind
A structure at a ballfield in Sycamore was shifted slightly to the north. Bleachers were also tipped over and light towers were snapped.
Thunderstorm Wind Thunderstorm Wind
Rotted tree trunks were snapped facing north to north-northeast.
Thunderstorm Wind Thunderstorm Wind
A large tree fell onto a building causing the roof to collapse.
Thunderstorm Wind Thunderstorm Wind
The top of a grain silo was blown off and carried to the northeast.
Thunderstorm Wind Thunderstorm Wind
An evergreen tree was snapped at the trunk.
Thunderstorm Wind Thunderstorm Wind
A rotted pine tree was snapped 15 feet up.
Thunderstorm Wind Thunderstorm Wind
One tree was snapped and another uprooted northeast of Sycamore.
Thunderstorm Wind Thunderstorm Wind
Several live pine trees were snapped a few feet off the ground and facing northeast.
Thunderstorm Wind Thunderstorm Wind
Wind got underneath the garage doors of a farm outbuilding and blew the roof off. Debris was scattered several hundred yards toward the northeast.
Thunderstorm Wind Thunderstorm Wind
Metal roofing was peeled back on the southwest corner of a building.
Thunderstorm Wind Thunderstorm Wind
A wooden trailer was flipped by wind.
Thunderstorm Wind Thunderstorm Wind
Pritchard Rd between Perry Rd and Harter Rd were closed due to downed power lines.
Cold/Wind Chill Cold/Wind Chill
Cold/Wind Chill Cold/Wind Chill
Events by year
| Year | Events | Tornadoes |
|---|---|---|
| 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 | 3 | 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 |