NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Osseo, WI
Every tropical system within 75 miles since 1851 and every tornado within 25 miles since 1950.
Data: NOAA NHC HURDAT2 and NOAA SPC tornado and hail reports, through 2025 · Updated
No tropical storm or hurricane has passed within 75 miles of Osseo, Wisconsin since records began in 1851. Since 1950, 60 tornadoes have touched down within 25 miles, 5 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 60
- EF3 or stronger
- 5
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
10 deaths in all
What the records show for Osseo
The highest rating among the 60 tornadoes within 25 miles is F4, reached 2 times; the most recent, on June 4, 1958, came within 15 miles. Of the 60, 6 had paths within 5 miles of the city centre, and 23 have come since 2000. July has had the most tornadoes, 14. The most recent tornado was on April 28, 2025. Of the 416 Wisconsin cities on this site, 66% have more tornadoes within 25 miles than Osseo. Hail has been reported within 10 miles 57 times since 1985, with stones up to 2.5 inches (tennis ball size). Osseo has more hail reports within 10 miles than 53% of the 416 Wisconsin cities.
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Tornadoes within 25 miles of Osseo
By decade
- 2020s16
- 2010s4
- 2000s3
- 1990s5(1 EF3+)
- 1980s9(1 EF3+)
- 1970s8
- 1960s8
- 1950s7(3 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jun 4, 1958 | F4 | 15 mi | 59.2 mi | 4 / 3 |
| May 10, 1953 | F4 | 5 mi | 162 mi | 2 / 24 |
| Aug 27, 1994 | F3 | 12 mi | 10 mi | 2 / 25 |
| Jul 15, 1980 | F3 | 24 mi | 1 mi | 1 / 10 |
| May 26, 1959 | F3 | 11 mi | 34.3 mi | 0 / 2 |
| Jul 18, 1971 | F2 | 22 mi | 38.5 mi | 1 / 2 |
| Dec 15, 2021 | EF2 | 23 mi | 2.8 mi | 0 / 0 |
| Dec 15, 2021 | EF2 | 21 mi | 3.13 mi | 0 / 0 |
| Jul 3, 1983 | F2 | 22 mi | 0.5 mi | 0 / 0 |
| Jul 3, 1983 | F2 | 5 mi | 8 mi | 0 / 0 |
| Sep 12, 1982 | F2 | 22 mi | 5 mi | 0 / 0 |
| Sep 12, 1982 | F2 | 20 mi | 5 mi | 0 / 0 |
The strongest 12 of 60, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Osseo
The Storm Prediction Center has 57 hail reports within 10 miles of Osseo since 1985, made on 36 separate days. Of these, 37 were 1 inch across or larger, and 4 reached 2 inches. The largest size, 2.5 inches (tennis ball size), was reported on 2 days, most recently July 13, 2015. The most recent report is from May 18, 2024. June has the most reports, 16.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Osseo
The nearest NOAA station with 1991–2020 climate normals is Augusta Rs, WI, 10 miles northeast of Osseo at 960 feet. July is the warmest, with an average high of 82°F and low of 59°F; January is the coolest, at 22°F and 4°F. June is the wettest at 5.1 inches of precipitation on average and January the driest at 1.0 inches; the year adds up to 34.6 inches. Highs reach 90°F on about 6 days a year, almost all from June to August. Lows fall below freezing on about 168 nights a year. That 34.6 inches is more than at 84 of the 165 Wisconsin stations used on this site (51%). Strum, 8 miles west, has its own station (Mondovi, WI): 36.1 inches a year, 1.5 more than here, and a July average high of 85°F against 82°F.
| Month | High °F | Low °F | Precip. in |
|---|---|---|---|
| Jan | 22 | 4 | 1.0 |
| Feb | 27 | 6 | 1.1 |
| Mar | 40 | 19 | 1.7 |
| Apr | 54 | 33 | 3.1 |
| May | 68 | 45 | 4.3 |
| Jun | 77 | 56 | 5.1 |
| Jul | 82 | 59 | 4.3 |
| Aug | 79 | 57 | 4.4 |
| Sep | 70 | 48 | 3.8 |
| Oct | 57 | 35 | 2.6 |
| Nov | 41 | 24 | 1.8 |
| Dec | 28 | 11 | 1.4 |
| Year | 54 | 33 | 34.6 |
Averages for 1991–2020 at Augusta Rs, WI (960 ft), from NOAA NCEI U.S. Climate Normals. Normals describe the station; the farther a place is from it, and the bigger the difference in height, the more its weather can differ.
Floods, thunderstorm wind and lightning near Osseo
Since 1996, the National Weather Service has logged 69 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Osseo: 52 thunderstorm wind reports, 8 heavy rain events, 4 flash floods, 4 floods and 1 lightning strike. They killed 0 people and injured 4, and the NWS estimated $2.8 million in property and crop damage. The strongest thunderstorm gust on record here was 90 mph, on April 10, 2011.
September 6, 2015: flash flood 4 miles from the centre of Osseo — 4 injured, $400,000 damage.
NWS: “S. Highways 10 and 12 to be closed in the extreme northern part of Jackson County east of Price.”
August 1, 2011: lightning strike 9 miles from the centre of Osseo — $1.2 million damage.
September 7, 2015: flood 3 miles from the centre of Osseo — $360,000 damage.
NWS: “In Osseo, sandbagging was done along the North Fork of the Buffalo River and firemen went door to door to alert residents of flooding along the South Fork of the Buffalo River. The heavy rain also flooded numerous basements throughout town with about 40 structures sustaining minor water damage.”
Source: NOAA NCEI Storm Events Database, events whose starting point is on record, 1996 to June 30, 2026. Damage is the NWS estimate in the dollars of the year, not insured losses, and NWS notes that some reports are unverified.
Flood insurance claims, disaster declarations and FEMA risk ratings
Trempealeau County, which includes Osseo, has been named in 15 federal disaster or emergency declarations since 1965, 12 of them major disasters (by incident: 7 severe storms, 3 floods, 2 biological emergencies, 1 drought). The latest major disaster declaration was Covid-19 Pandemic, on April 4, 2020. FEMA's National Risk Index gives Trempealeau County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively Moderate for hail, strong wind and lightning; Relatively Low for tornadoes, inland flooding and heat waves. It models the county's expected loss from all 18 hazards it covers at $20.1 million a year, the 41st highest of 72 Wisconsin counties; of the hazards above, the largest share, $11.7 million (58%), is from inland flooding.
Claims: FEMA, OpenFEMA Dataset FIMA NFIP Redacted Claims – v3, summed over ZIP codes; payments in the dollars of each year, not adjusted for inflation. Declarations: Disaster Declarations Summaries – v2, by county. Retrieved October 25, 2026. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Risk ratings: FEMA, National Risk Index county table, December 2025 (v1.20), retrieved October 26, 2026; ratings compare counties nationwide, are meant for planning and are no substitute for a local risk assessment. This product uses the Federal Emergency Management Agency's National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
What counts as a pass, the distances and the sources: how this storm history is built.
Cities near Osseo
- Strum, WI8 mi
- Augusta, WI11 mi
- Whitehall, WI13 mi
- Eleva, WI14 mi
- Fall Creek, WI15 mi
- Independence, WI18 mi
- Blair, WI18 mi
- Altoona, WI20 mi
- Eau Claire, WI22 mi
- Mondovi, WI23 mi
- Arcadia, WI25 mi
- Ettrick, WI27 mi
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