Derby, KS Tornado History — 177 Tornadoes Since 1950
How many tornadoes has Derby, KS had?
Derby has had 177 tornadoes on record within 25 miles since 1950, including 15 strong to violent (EF3+) tornadoes.
When was the most recent tornado near Derby?
The most recent tornado within 25 miles of Derby was an Unrated on April 30, 2024.
When is tornado season in Derby?
May is historically the peak month for tornadoes near Derby, with 58 on record. April through June account for 131 of the 177 tornadoes on record near Derby.
At a Glance
Recent Tornado Activity Near Derby
The last 20 years of confirmed tornadoes within 25 miles — 35 total, averaging 1.8 per year over this window.
Preliminary tornado reports near Derby since December 29, 2025
These are 2 preliminary reports, not confirmed tornadoes. They have not yet been through an NWS damage survey, and are not counted in the confirmed totals above.
Preliminary reports are revised, merged, and sometimes withdrawn — historically about 23% are consolidated downward once surveys complete. Ratings are omitted until a survey assigns one.
Confirmed records above are complete through December 29, 2025. NOAA publishes the confirmed archive annually, so tornadoes after that date appear here first and move into the totals above once finalized.
[Landspout] (ICT)
New developing tornado. (ICT)
Within 25 miles of Derby. Quoted text is the report narrative exactly as filed. Source: NOAA Storm Prediction Center preliminary storm reports, updated daily.
Tornadoes by Decade
Tornadoes by Enhanced Fujita Rating
F0–F5 ratings (pre-2007) are grouped with their EF equivalents. The Enhanced Fujita scale replaced the original Fujita scale in February 2007.
Tornadoes by Month
Casualties on Record Near Derby
23 fatalities have been recorded within 25 miles of Derby since 1950, across 2 events. 508 injuries have been reported across all events. 1991 was the deadliest year on record near Derby.
The deadliest single event was an F5 on April 26, 1991, which caused 17 fatalities along a 46.0-mile track.
Notable Tornadoes Near Derby
What the record shows near Derby
The 1990s were the busiest decade near Derby, with 40 of the 177 confirmed tornadoes within 25 miles; the 2020s have produced 3 so far. The Derby record runs from the 1950s to today.
Of the tornadoes rated near Derby, 142 reached EF0 or EF1 and 33 reached EF2 or stronger. The most intense on record near Derby is rated EF5, of which 1 is logged. A further 2 near Derby are unrated — events NOAA logged before a damage survey assigned a scale.
Across the last 20 years Derby has averaged 1.8 confirmed tornadoes a year within 25 miles, 35 in total. 2010 was the busiest of them with 7, and 7 of those years passed with none at all.