Delaware, OH Tornado History — 80 Tornadoes Since 1950
How many tornadoes has Delaware, OH had?
Delaware has had 80 tornadoes on record within 25 miles since 1950, including 5 strong to violent (EF3+) tornadoes.
When was the most recent tornado near Delaware?
The most recent tornado within 25 miles of Delaware was an EF0 on December 29, 2024.
When is tornado season in Delaware?
June is historically the peak month for tornadoes near Delaware, with 19 on record. April through June account for 39 of the 80 tornadoes on record near Delaware.
At a Glance
Recent Tornado Activity Near Delaware
The last 20 years of confirmed tornadoes within 25 miles — 22 total, averaging 1.1 per year over this window.
Preliminary tornado reports near Delaware since December 29, 2025
This is a preliminary report, not confirmed tornadoes. It has not yet been through an NWS damage survey, and is 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Preliminary reports are revised, merged, and sometimes withdrawn — historically about 23% are consolidated downward once surveys complete.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.
An EF-1 tornado with maximum wind speeds of 95 mph and a maximum width of 75 yards began northeast of Mount Gilead along US 42 near Home Road... causing extensive tree (CLE)
Within 25 miles of Delaware. 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 Delaware
9 fatalities have been recorded within 25 miles of Delaware since 1950, across 3 events. 184 injuries have been reported across all events. 1981 was the deadliest year on record near Delaware.
The deadliest single event was an F3 on June 13, 1981, which caused 4 fatalities along a 3.8-mile track.
Notable Tornadoes Near Delaware
What the record shows near Delaware
The 1970s were the busiest decade near Delaware, with 18 of the 80 confirmed tornadoes within 25 miles; the 2020s have produced 10 so far. The Delaware record runs from the 1950s to today.
Of the tornadoes rated near Delaware, 58 reached EF0 or EF1 and 22 reached EF2 or stronger. The most intense on record near Delaware is rated EF3, of which 5 are logged.
Across the last 20 years Delaware has averaged 1.1 confirmed tornadoes a year within 25 miles, 22 in total. 2024 was the busiest of them with 7, and 10 of those years passed with none at all.