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NHC HURDAT2 · SPC Tornado Database

Hurricanes and Tornadoes That Hit Fennimore, 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 Fennimore, Wisconsin since 1851, 0 of them at hurricane strength; the most recent was an unnamed storm in 1900. Since 1950, 84 tornadoes have touched down within 25 miles, 3 of them rated EF3 or stronger.

Hurricanes
0

within 75 mi, since 1851

Tropical storms
1

below hurricane strength

Tornadoes
84

within 25 mi, since 1950

EF3 or stronger
3

2 deaths in all

What the records show for Fennimore

None of the 1 tropical systems was at hurricane strength as it passed Fennimore; the strongest was an unnamed storm in 1900, a tropical storm with 53 mph winds when its centre passed 63 miles away. Fennimore 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 84 tornadoes within 25 miles is F3 or EF3, reached 3 times; the most recent, on August 7, 2021, came within 7 miles. The deadliest, an F3 on May 30, 1985, killed 2 people. Of the 84, 7 had paths within 5 miles of the city centre, and 37 have come since 2000. June has had the most tornadoes, 37. The most recent tornado was on June 22, 2024. Fennimore has more tornadoes within 25 miles than 58% of the 416 Wisconsin cities. Hail has been reported within 10 miles 40 times since 1966, with stones up to 2.5 inches (tennis ball size). Of the 416 Wisconsin cities, 69% have more hail reports within 10 miles than Fennimore.

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Tropical storms and hurricanes near Fennimore

Tropical systems that passed within 75 miles of Fennimore, Wisconsin, newest first
YearStormClosestStrength when closestPeak
1900Unnamed 1900 stormSep 1163 miTropical storm (53 mph)Category 4

Strength is the sustained wind on the track at the closest point, which is not the wind felt in Fennimore: 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 Fennimore

By decade

  • 2020s9(1 EF3+)
  • 2010s15
  • 2000s13
  • 1990s9
  • 1980s14(1 EF3+)
  • 1970s10
  • 1960s8(1 EF3+)
  • 1950s6
Strongest tornadoes near Fennimore, Wisconsin
DateRatingDistancePathKilled / injured
May 30, 1985F313 mi34 mi2 / 27
Aug 7, 2021EF37 mi9.38 mi0 / 0
Sep 3, 1964F315 mi17.1 mi0 / 4
Jun 29, 2014EF221 mi5.05 mi0 / 0
Jun 29, 2014EF211 mi29.07 mi0 / 0
Jun 16, 2014EF218 mi3.76 mi0 / 5
Sep 4, 2012EF219 mi0.72 mi0 / 0
May 8, 1988F222 mi20 mi0 / 0
May 8, 1988F25 mi7.5 mi0 / 0
May 8, 1988F22 mi10 mi0 / 0
May 30, 1985F211 mi16 mi0 / 0
Jun 7, 1984F224 mi11 mi0 / 0

The strongest 12 of 84, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.

Hail in Fennimore

The Storm Prediction Center has 40 hail reports within 10 miles of Fennimore since 1966, made on 27 separate days. Of these, 24 were 1 inch across or larger, and one reached 2 inches. The largest, 2.5 inches (tennis ball size), fell on June 16, 1973. The most recent report is from July 28, 2023. July has the most reports, 13.

Source: NOAA Storm Prediction Center severe weather reports, data through 2025.

Weather by month in Fennimore

The nearest NOAA station with 1991–2020 climate normals is Boscobel Airport, WI, 12 miles north of Fennimore at 672 feet. July is the warmest, with an average high of 84°F and low of 61°F; January is the coolest, at 29°F and 10°F. June is the wettest at 5.2 inches of precipitation on average and January and February the driest at 1.0 inches; the year adds up to 34.1 inches over 64 days with at least a tenth of an inch. Highs reach 90°F on about 19 days a year, almost all from May to September. Lows fall below freezing on about 152 nights a year. That 34.1 inches is more than at 69 of the 165 Wisconsin stations used on this site (42%). Lancaster, 10 miles south, has its own station (Lancaster 4 WSW, WI): 38.5 inches a year, 4.4 more than here, and a July average high of 81°F against 84°F.

Monthly climate normals 1991–2020 at Boscobel Airport, WI
MonthHigh °FLow °FPrecip. inDays ≥ 0.1"
Jan29101.03
Feb34141.03
Mar47251.95
Apr61363.67
May72474.48
Jun81575.29
Jul84613.86
Aug83594.16
Sep76513.46
Oct63382.55
Nov47281.94
Dec34171.34
Year593734.164

Averages for 1991–2020 at Boscobel Airport, WI (672 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.

Wisconsin weather by month, station by station →

Floods, thunderstorm wind and lightning near Fennimore

Since 1996, the National Weather Service has logged 45 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Fennimore: 31 thunderstorm wind reports, 7 flash floods, 4 heavy rain events, 2 lightning strikes and 1 flood. None is recorded as killing or injuring anyone; the NWS estimated $519,000 in property and crop damage. The strongest thunderstorm gust on record here was 78 mph, on June 30, 2014. June has had the most flash floods, 5 of 7. Of the 374 Wisconsin cities on this site with a flash flood on record, 217 have had fewer than Fennimore.

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

Grant County, which includes Fennimore, has been named in 20 federal disaster or emergency declarations since 1965, 17 of them major disasters (by incident: 10 severe storms, 4 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 Grant County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively Moderate for tornadoes, hail, strong wind and lightning; Relatively Low for inland flooding and heat waves; Very Low for hurricanes. It models the county's expected loss from all 18 hazards it covers at $20.9 million a year, the 40th highest of 72 Wisconsin counties; of the hazards above, the largest share, $9.2 million (44%), 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 Fennimore

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