NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Winner, SD
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 Winner, South Dakota since records began in 1851. Since 1950, 48 tornadoes have touched down within 25 miles, 1 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 48
- EF3 or stronger
- 1
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
no recorded deaths
What the records show for Winner
The strongest of the 48 tornadoes within 25 miles was an F5 on May 8, 1965; its path came within 16 miles. Of the 48, 5 had paths within 5 miles of the city centre, and 18 have come since 2000. June has had the most tornadoes, 16. The most recent tornado was on August 4, 2020. Of the 61 South Dakota cities on this site, 70% have more tornadoes within 25 miles than Winner. Hail has been reported within 10 miles 81 times since 1958, with stones up to 2.5 inches (tennis ball size). Of the 61 South Dakota cities, 72% have more hail reports within 10 miles than Winner.
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Tornadoes within 25 miles of Winner
By decade
- 2020s2
- 2010s4
- 2000s12
- 1990s6
- 1980s4
- 1970s7
- 1960s11(1 EF3+)
- 1950s2
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| May 8, 1965 | F5 | 16 mi | 30.1 mi | 0 / 1 |
| May 22, 2016 | EF2 | 25 mi | 4.64 mi | 0 / 0 |
| May 22, 2010 | EF2 | 23 mi | 9.01 mi | 0 / 0 |
| May 22, 2010 | EF2 | 8 mi | 2.85 mi | 0 / 0 |
| Jun 29, 1993 | F2 | 8 mi | 5 mi | 0 / 0 |
| Oct 18, 1971 | F2 | 22 mi | 2.3 mi | 0 / 0 |
| May 8, 1965 | F2 | 10 mi | 0.1 mi | 0 / 0 |
| Jun 30, 1957 | F2 | 12 mi | 0.1 mi | 0 / 0 |
| Apr 18, 1957 | F2 | 12 mi | 3.8 mi | 0 / 0 |
| May 22, 2016 | EF1 | 3 mi | 0.68 mi | 0 / 0 |
| Jul 9, 2009 | EF1 | 4 mi | 0.2 mi | 0 / 0 |
| Jul 9, 2009 | EF1 | 6 mi | 1.28 mi | 0 / 0 |
The strongest 12 of 48, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Winner
The Storm Prediction Center has 81 hail reports within 10 miles of Winner since 1958, made on 57 separate days. Of these, 59 were 1 inch across or larger, and 2 reached 2 inches. The largest, 2.5 inches (tennis ball size), fell on July 18, 1992. The most recent report is from July 27, 2025. August has the most reports, 30.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Winner
The nearest NOAA station with 1991–2020 climate normals is Winner, SD, 9 miles northeast of Winner at 2,016 feet. July is the warmest, with an average high of 90°F and low of 63°F; January is the coolest, at 35°F and 13°F. June is the wettest at 3.9 inches of precipitation on average and January the driest at 0.5 inches; the year adds up to 23.0 inches over 48 days with at least a tenth of an inch. Highs reach 90°F on about 40 days a year, almost all from May to September. Lows fall below freezing on about 149 nights a year. Snowfall averages 49.1 inches a year, most of it in December. That 23.0 inches is more than at 20 of the 43 South Dakota stations used on this site (47%). Mission, 34 miles west, has its own station (Mission, SD): 21.1 inches a year, 1.9 less than here, and a July average high of 87°F against 90°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 35 | 13 | 0.5 | 2 | 7.2 |
| Feb | 39 | 15 | 0.6 | 2 | 6.9 |
| Mar | 50 | 24 | 1.1 | 4 | 8.3 |
| Apr | 61 | 35 | 2.8 | 6 | 9.2 |
| May | 72 | 47 | 3.6 | 7 | 0.0 |
| Jun | 82 | 57 | 3.9 | 7 | 0.0 |
| Jul | 90 | 63 | 2.6 | 5 | 0.0 |
| Aug | 87 | 61 | 2.4 | 4 | 0.0 |
| Sep | 80 | 52 | 2.2 | 4 | 0.0 |
| Oct | 65 | 38 | 1.8 | 4 | 1.9 |
| Nov | 50 | 26 | 0.8 | 2 | 6.0 |
| Dec | 37 | 16 | 0.7 | 2 | 9.6 |
| Year | 62 | 37 | 23.0 | 48 | 49.1 |
Averages for 1991–2020 at Winner, SD (2,016 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 Winner
Since 1996, the National Weather Service has logged 94 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Winner: 93 thunderstorm wind reports and 1 flash flood. None is recorded as killing or injuring anyone; the NWS estimated $429,000 in property and crop damage. The strongest thunderstorm gust on record here was 84 mph, on July 29, 2024.
June 24, 2009: thunderstorm wind 3 miles from the centre of Winner — $400,000 damage.
NWS: “Wind gusts to 75 mph downed numerous power poles and trees across south central Tripp County. A few small barns and sheds were also blown over by the wind.”
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
Tripp County, which includes Winner, has been named in 20 federal disaster or emergency declarations since 1976, 17 of them major disasters (by incident: 8 floods, 6 severe storms, 2 biological emergencies, 1 coastal storm). The latest major disaster declaration was Severe Storms, Straight-Line Winds, and Flooding, on August 15, 2024. FEMA's National Risk Index gives Tripp County a Very Low rating for natural hazard risk overall; by hazard: Relatively Low for tornadoes, hail, inland flooding and strong wind; Very Low for lightning and heat waves. It models the county's expected loss from all 18 hazards it covers at $8.3 million a year, the 29th highest of 66 South Dakota counties; of the hazards above, the largest share, $3.1 million (38%), 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 Winner
- Mission, SD34 mi
- Rosebud, SD47 mi
- Chamberlain, SD48 mi
- Valentine, NE52 mi
- Ainsworth, NE53 mi
- Platte, SD55 mi
- Atkinson, NE72 mi
- Lake Andes, SD74 mi
- Fort Pierre, SD75 mi
- Pierre, SD80 mi
- Martin, SD85 mi
- Wagner, SD86 mi
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