NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Brookfield, 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 Brookfield, Wisconsin since 1851, 0 of them at hurricane strength; the most recent was an unnamed storm in 1900. Since 1950, 89 tornadoes have touched down within 25 miles, 4 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 1
- Tornadoes
- 89
- EF3 or stronger
- 4
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
1 deaths in all
What the records show for Brookfield
None of the 1 tropical systems was at hurricane strength as it passed Brookfield; the strongest was an unnamed storm in 1900, a tropical storm with 59 mph winds when its centre passed 25 miles away. Brookfield 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 89 tornadoes within 25 miles is F4, reached 2 times; the most recent, on April 27, 1984, came within 4 miles. Of the 89, 4 had paths within 5 miles of the city centre, and 30 have come since 2000. July has had the most tornadoes, 23. The most recent tornado was on July 28, 2023. Brookfield has more tornadoes within 25 miles than 61% of the 416 Wisconsin cities. Hail has been reported within 10 miles 187 times since 1964, with stones up to 2.75 inches (baseball size). Brookfield has more hail reports within 10 miles than 95% of the 416 Wisconsin cities.
Compare Brookfield's storm record with another city →
Tropical storms and hurricanes near Brookfield
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 1900 | Unnamed 1900 stormSep 11 | 25 mi | Tropical storm (59 mph) | Category 4 |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Brookfield: 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 Brookfield
By decade
- 2020s10
- 2010s9
- 2000s11
- 1990s2
- 1980s19(2 EF3+)
- 1970s13(1 EF3+)
- 1960s17(1 EF3+)
- 1950s8
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Apr 27, 1984 | F4 | 4 mi | 6.5 mi | 1 / 14 |
| Aug 22, 1964 | F4 | 25 mi | 2.2 mi | 0 / 30 |
| Jun 5, 1980 | F3 | 21 mi | 10.7 mi | 0 / 0 |
| Jun 5, 1977 | F3 | 3 mi | 69.5 mi | 0 / 8 |
| Jul 22, 2010 | EF2 | 14 mi | 1 mi | 0 / 0 |
| Jun 21, 2010 | EF2 | 19 mi | 5.22 mi | 0 / 15 |
| Jun 15, 1981 | F2 | 15 mi | 28.7 mi | 0 / 3 |
| Aug 4, 1980 | F2 | 9 mi | 0.1 mi | 0 / 0 |
| Apr 2, 1977 | F2 | in town | 9.3 mi | 0 / 2 |
| Aug 25, 1975 | F2 | 10 mi | 0.2 mi | 0 / 0 |
| Sep 28, 1972 | F2 | 18 mi | 1 mi | 0 / 0 |
| Sep 28, 1972 | F2 | 25 mi | 1.5 mi | 0 / 0 |
The strongest 12 of 89, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Brookfield
The Storm Prediction Center has 187 hail reports within 10 miles of Brookfield since 1964, made on 96 separate days. Of these, 89 were 1 inch across or larger, and 9 reached 2 inches. The largest, 2.75 inches (baseball size), fell on April 13, 2006. The most recent report is from September 22, 2025. May has the most reports, 39.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Brookfield
The nearest NOAA station with 1991–2020 climate normals is Brookfield Wwtp, WI, 3 miles west of Brookfield at 830 feet. July is the warmest, with an average high of 81°F and low of 61°F; January is the coolest, at 28°F and 12°F. June is the wettest at 4.8 inches of precipitation on average and January and February the driest at 1.6 inches; the year adds up to 36.0 inches over 74 days with at least a tenth of an inch. Highs reach 90°F on about 7 days a year, almost all from June to August. Lows fall below freezing on about 149 nights a year. That 36.0 inches is more than at 115 of the 165 Wisconsin stations used on this site (70%). Elm Grove, 2 miles east, has its own station (Mt Mary College, WI): 33.8 inches a year, 2.2 less than here, and a July average high of 83°F against 81°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" |
|---|---|---|---|---|
| Jan | 28 | 12 | 1.6 | 5 |
| Feb | 32 | 15 | 1.6 | 5 |
| Mar | 42 | 25 | 2.1 | 5 |
| Apr | 54 | 35 | 3.7 | 7 |
| May | 67 | 47 | 3.9 | 8 |
| Jun | 77 | 56 | 4.8 | 8 |
| Jul | 81 | 61 | 3.8 | 6 |
| Aug | 79 | 60 | 4.0 | 8 |
| Sep | 72 | 51 | 3.2 | 7 |
| Oct | 59 | 40 | 3.1 | 7 |
| Nov | 45 | 29 | 2.2 | 4 |
| Dec | 33 | 19 | 2.0 | 6 |
| Year | 56 | 37 | 36.0 | 74 |
Averages for 1991–2020 at Brookfield Wwtp, WI (830 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 Brookfield
Since 1996, the National Weather Service has logged 264 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Brookfield: 194 thunderstorm wind reports, 27 flash floods, 18 floods, 13 lightning strikes and 12 heavy rain events. They killed 2 people and injured 14, and the NWS estimated $183.1 million in property and crop damage. The strongest thunderstorm gust on record here was 100 mph, on May 31, 1998. June has had the most flash floods, 7 of 27. Of the 374 Wisconsin cities on this site with a flash flood on record, 369 have had fewer than Brookfield.
July 22, 2010: flash flood 10 miles from the centre of Brookfield — 1 killed, $24.1 million damage.
April 15, 2026: lightning strike 7 miles from the centre of Brookfield — 1 killed.
September 12, 2019: lightning strike 4 miles from the centre of Brookfield — 3 injured, $2.5 million 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
Flood insurance policyholders in Brookfield's 2 ZIP codes have filed 68 claims with the National Flood Insurance Program since 1978, and were paid $775,000 for buildings and contents, in the dollars of each year. The most came from Flooding in 1998: 19 claims (28% of all) and $269,000, then Storm in 2008 with 14 and 2025-08-MilwaukeeMetro-Flood in 2025 with 12. The year with the most claims was 2008, with 14. 69% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 128 Wisconsin cities on this site with 10 or more claims, 107 have fewer than Brookfield.
| Event | Claims | Paid |
|---|---|---|
| Flooding1998 | 19 | $269,000 |
| Storm2008 | 14 | $228,000 |
| 2025-08-MilwaukeeMetro-Flood2025 | 12 | $126,000 |
Waukesha County, which includes Brookfield, has been named in 19 federal disaster or emergency declarations since 1969, 14 of them major disasters (by incident: 7 floods, 6 severe storms, 2 biological emergencies, 2 snowstorms). The latest major disaster declaration was Severe Storms, Tornadoes, and Flooding, on June 30, 2026. FEMA's National Risk Index gives Waukesha County a Relatively Moderate rating for natural hazard risk overall; by hazard: Relatively High for tornadoes and hail; Relatively Moderate for inland flooding, strong wind, lightning and heat waves; Very Low for hurricanes. It models the county's expected loss from all 18 hazards it covers at $138.3 million a year, the 3rd highest of 72 Wisconsin counties; of the hazards above, the largest share, $68.2 million (49%), 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.