Fort Collins, CO Tornado History — 103 Tornadoes Since 1950
How many tornadoes has Fort Collins, CO had?
Fort Collins has had 103 tornadoes on record within 25 miles since 1950, including 2 strong to violent (EF3+) tornadoes.
When was the most recent tornado near Fort Collins?
The most recent tornado within 25 miles of Fort Collins was an Unrated on July 31, 2023.
When is tornado season in Fort Collins?
June is historically the peak month for tornadoes near Fort Collins, with 28 on record. April through June account for 59 of the 103 tornadoes on record near Fort Collins.
At a Glance
Recent Tornado Activity Near Fort Collins
The last 20 years of confirmed tornadoes within 25 miles — 19 total, averaging 0.9 per year over this window.
Preliminary tornado reports near Fort Collins 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Preliminary reports are revised, merged, and sometimes withdrawn — historically about 23% are consolidated downward once surveys complete.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.
(BOU)
Within 25 miles of Fort Collins. 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 Fort Collins
1 fatality has been recorded within 25 miles of Fort Collins since 1950, across 1 event. 80 injuries have been reported across all events. 2008 was the deadliest year on record near Fort Collins.
The deadliest single event was an EF3 on May 22, 2008, which caused 1 fatality along a 38.7-mile track.
Notable Tornadoes Near Fort Collins
What the record shows near Fort Collins
The 1990s were the busiest decade near Fort Collins, with 28 of the 103 confirmed tornadoes within 25 miles; the 2020s have produced 5 so far. The Fort Collins record runs from the 1950s to today.
Of the tornadoes rated near Fort Collins, 93 reached EF0 or EF1 and 8 reached EF2 or stronger. The most intense on record near Fort Collins is rated EF3, of which 2 are logged. A further 2 near Fort Collins are unrated — events NOAA logged before a damage survey assigned a scale.
Across the last 20 years Fort Collins has averaged 0.9 confirmed tornadoes a year within 25 miles, 19 in total. 2020 was the busiest of them with 4, and 10 of those years passed with none at all.