Sun Prairie, WI Tornado History — 144 Tornadoes Since 1950
How many tornadoes has Sun Prairie, WI had?
Sun Prairie has had 144 tornadoes on record within 25 miles since 1950, including 13 strong to violent (EF3+) tornadoes.
When was the most recent tornado near Sun Prairie?
The most recent tornado within 25 miles of Sun Prairie was an EF0 on July 16, 2025.
When is tornado season in Sun Prairie?
June is historically the peak month for tornadoes near Sun Prairie, with 45 on record. April through June account for 71 of the 144 tornadoes on record near Sun Prairie.
At a Glance
Recent Tornado Activity Near Sun Prairie
The last 20 years of confirmed tornadoes within 25 miles — 51 total, averaging 2.5 per year over this window.
Preliminary tornado reports near Sun Prairie 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Preliminary reports are revised, merged, and sometimes withdrawn — historically about 23% are consolidated downward once surveys complete.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.
NWS Storm Survey found EF0 tornado damage south of Beaver Dam. A brief tornado with maximum winds of 85 MPH. Attached garage and part of house roof lofted approximately (MKX)
NWS Storm Survey: EF-1 tornado... estimated peak winds of 105 mph. 75 yards wide. Tornado appears to have started west of I-39 along Church Rd where it tracked to the n (MKX)
Within 25 miles of Sun Prairie. Quoted text is the report narrative exactly as filed. Source: NOAA Storm Prediction Center preliminary storm reports, updated daily.
What storm spotters reported near Sun Prairie
One local storm report has been filed within 25 miles of Sun Prairie and since confirmed into the NOAA archive, the earliest on May 15, 2025 and the most recent on May 15, 2025. It is already counted in the Sun Prairie totals above; quoted below is the narrative the reporting office filed at the time.
A NWS storm survey found EF-1 rated damage from a tornado that began west of Lowell. This tornado was on the ground for approximately 6.7 miles... ending just south of (MKX)
Source: National Weather Service and trained-spotter local storm reports, relayed by the NOAA Storm Prediction Center.
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 Sun Prairie
17 fatalities have been recorded within 25 miles of Sun Prairie since 1950, across 6 events. 376 injuries have been reported across all events. 1984 was the deadliest year on record near Sun Prairie.
The deadliest single event was an F5 on June 7, 1984, which caused 9 fatalities along a 36.0-mile track.
Notable Tornadoes Near Sun Prairie
What the record shows near Sun Prairie
The 2000s were the busiest decade near Sun Prairie, with 33 of the 144 confirmed tornadoes within 25 miles; the 2020s have produced 20 so far. The Sun Prairie record runs from the 1950s to today.
Of the tornadoes rated near Sun Prairie, 106 reached EF0 or EF1 and 38 reached EF2 or stronger. The most intense on record near Sun Prairie is rated EF5, of which 1 is logged.
Across the last 20 years Sun Prairie has averaged 2.5 confirmed tornadoes a year within 25 miles, 51 in total. 2008 was the busiest of them with 11, and 7 of those years passed with none at all.