NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Seymour, 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
1 tropical system has passed within 75 miles of Seymour, Wisconsin since 1851, 0 of them at hurricane strength; the most recent was Cristobal in 2020. Since 1950, 81 tornadoes have touched down within 25 miles, 4 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 1
- Tornadoes
- 81
- EF3 or stronger
- 4
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
7 deaths in all
What the records show for Seymour
None of the 1 tropical systems was at hurricane strength as it passed Seymour; the strongest was Cristobal in 2020, a tropical storm with 40 mph winds when its centre passed 58 miles away. Seymour is tied for the most tropical storms and hurricanes within 75 miles among the 416 Wisconsin cities on this site. The highest rating among the 81 tornadoes within 25 miles is F4, reached 2 times; the most recent, on April 27, 1984, came within 5 miles. The deadliest, an F4 on September 26, 1951, killed 6 people. Of the 81, 5 had paths within 5 miles of the city centre, and 48 have come since 2000. June has had the most tornadoes, 25. The most recent tornado was on July 23, 2025. Seymour has more tornadoes within 25 miles than 55% of the 416 Wisconsin cities. Hail has been reported within 10 miles 23 times since 1980, with stones up to 2.75 inches (baseball size). Of the 416 Wisconsin cities, 94% have more hail reports within 10 miles than Seymour.
Compare Seymour's storm record with another city →
Tropical storms and hurricanes near Seymour
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 2020 | CristobalJun 10 | 58 mi | Tropical storm (40 mph) | Tropical storm |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Seymour: a hurricane's worst winds sit within a few dozen miles of its centre, and inland cities are usually past that.
Tornadoes within 25 miles of Seymour
By decade
- 2020s7
- 2010s31
- 2000s10
- 1990s3
- 1980s4(1 EF3+)
- 1970s9(1 EF3+)
- 1960s9(1 EF3+)
- 1950s8(1 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Sep 26, 1951 | F4 | 23 mi | 26.4 mi | 6 / 3 |
| Apr 27, 1984 | F4 | 5 mi | 27.5 mi | 1 / 19 |
| Dec 1, 1970 | F3 | 7 mi | 13.1 mi | 0 / 0 |
| Jun 26, 1969 | F3 | 3 mi | 15.3 mi | 0 / 1 |
| Aug 6, 2013 | EF2 | 19 mi | 13.07 mi | 0 / 0 |
| Apr 10, 2011 | EF2 | 17 mi | 1.52 mi | 0 / 0 |
| May 6, 1982 | F2 | 9 mi | 9 mi | 0 / 0 |
| Apr 22, 1970 | F2 | 15 mi | 7.2 mi | 0 / 1 |
| Apr 22, 1970 | F2 | 12 mi | 3.6 mi | 0 / 2 |
| Aug 16, 1968 | F2 | 7 mi | 1 mi | 0 / 1 |
| Aug 16, 1968 | F2 | 19 mi | 2 mi | 0 / 0 |
| Jul 8, 1965 | F2 | 23 mi | 0.1 mi | 0 / 0 |
The strongest 12 of 81, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Seymour
The Storm Prediction Center has 23 hail reports within 10 miles of Seymour since 1980, made on 21 separate days. Of these, 15 were 1 inch across or larger, and one reached 2 inches. The largest, 2.75 inches (baseball size), fell on September 7, 2021. The most recent report is from July 13, 2024. July has the most reports, 7.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Seymour
The nearest NOAA station with 1991–2020 climate normals is Green Bay WFO, WI, 10 miles east of Seymour at 682 feet. July is the warmest, with an average high of 81°F and low of 60°F; January is the coolest, at 25°F and 10°F. June is the wettest at 4.1 inches of precipitation on average and February the driest at 1.2 inches; the year adds up to 31.7 inches over 71 days with at least a tenth of an inch. Highs reach 90°F on about 6 days a year, almost all from June to August. Lows fall below freezing on about 151 nights a year. Snowfall averages 61.3 inches a year, most of it in December. That 31.7 inches is more than at 21 of the 165 Wisconsin stations used on this site (13%). Black Creek, 8 miles west, has its own station (Appleton, WI): 33.2 inches a year, 1.5 more than here, and a July average high of 82°F against 81°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 25 | 10 | 1.4 | 4 | 13.3 |
| Feb | 29 | 13 | 1.2 | 4 | 15.1 |
| Mar | 40 | 23 | 2.0 | 5 | 7.9 |
| Apr | 53 | 34 | 3.0 | 7 | 5.3 |
| May | 66 | 46 | 3.5 | 7 | 0.1 |
| Jun | 76 | 55 | 4.1 | 8 | 0.0 |
| Jul | 81 | 60 | 3.6 | 7 | 0.0 |
| Aug | 78 | 58 | 3.3 | 6 | 0.0 |
| Sep | 71 | 50 | 3.2 | 6 | 0.0 |
| Oct | 57 | 39 | 2.7 | 7 | 0.4 |
| Nov | 43 | 28 | 2.0 | 4 | 2.1 |
| Dec | 30 | 17 | 1.7 | 6 | 17.1 |
| Year | 54 | 36 | 31.7 | 71 | 61.3 |
Averages for 1991–2020 at Green Bay WFO, WI (682 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 Seymour
Since 1996, the National Weather Service has logged 51 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Seymour: 44 thunderstorm wind reports, 4 heavy rain events, 1 flash flood, 1 flood and 1 lightning strike. None is recorded as killing or injuring anyone; the NWS estimated $337,000 in property and crop damage. The strongest thunderstorm gust on record here was 81 mph, on August 21, 2013.
July 19, 2010: flash flood 8 miles from the centre of Seymour — $150,000 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
Outagamie County, which includes Seymour, has been named in 12 federal disaster or emergency declarations since 1973, 9 of them major disasters (by incident: 4 floods, 3 severe storms, 2 biological emergencies, 1 drought). The latest major disaster declaration was Severe Storms and Tornadoes, on October 7, 2026. FEMA's National Risk Index gives Outagamie County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively High for lightning; Relatively Moderate for tornadoes, hail, inland flooding and strong wind; Relatively Low for heat waves; Very Low for hurricanes. It models the county's expected loss from all 18 hazards it covers at $59.0 million a year, the 10th highest of 72 Wisconsin counties; of the hazards above, the largest share, $24.7 million (42%), 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.