NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Lamoni, IA
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 Lamoni, Iowa since 1851, 0 of them at hurricane strength; the most recent was an unnamed storm in 1900. Since 1950, 76 tornadoes have touched down within 25 miles, 9 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 1
- Tornadoes
- 76
- EF3 or stronger
- 9
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
6 deaths in all
What the records show for Lamoni
None of the 1 tropical systems was at hurricane strength as it passed Lamoni; the strongest was an unnamed storm in 1900, a tropical storm with 39 mph winds when its centre passed 7 miles away. Lamoni is tied for the most tropical storms and hurricanes within 75 miles among the 241 Iowa cities on this site. The highest rating among the 76 tornadoes within 25 miles is F4, reached 3 times; the most recent, on May 24, 1989, came within 2 miles. The deadliest, an F4 on June 7, 1984, killed 3 people. Of the 76, 6 had paths within 5 miles of the city centre, and 29 have come since 2000. May has had the most tornadoes, 20. The most recent tornado was on May 6, 2024. Of the 241 Iowa cities, 97% have more tornadoes within 25 miles than Lamoni. Hail has been reported within 10 miles 63 times since 1956, with stones up to 2.75 inches (baseball size). Of the 241 Iowa cities, 78% have more hail reports within 10 miles than Lamoni.
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Tropical storms and hurricanes near Lamoni
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 1900 | Unnamed 1900 stormSep 11 | 7 mi | Tropical storm (39 mph) | Category 4 |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Lamoni: 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 Lamoni
By decade
- 2020s8
- 2010s8
- 2000s13(1 EF3+)
- 1990s9(1 EF3+)
- 1980s12(3 EF3+)
- 1970s7(1 EF3+)
- 1960s10(1 EF3+)
- 1950s9(2 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jun 7, 1984 | F4 | 10 mi | 134 mi | 3 / 64 |
| May 24, 1989 | F4 | 2 mi | 49 mi | 0 / 0 |
| Jun 2, 1980 | F4 | 2 mi | 31.2 mi | 0 / 0 |
| Oct 8, 1958 | F3 | 19 mi | 23.1 mi | 2 / 7 |
| Apr 11, 2001 | F3 | 15 mi | 76.5 mi | 0 / 0 |
| May 27, 1995 | F3 | in town | 30.4 mi | 0 / 0 |
| Mar 29, 1979 | F3 | 23 mi | 57 mi | 0 / 4 |
| Apr 16, 1960 | F3 | 15 mi | 27 mi | 0 / 4 |
| Apr 23, 1955 | F3 | 22 mi | 5.4 mi | 0 / 0 |
| Jun 7, 1984 | F2 | 8 mi | 14 mi | 1 / 3 |
| Apr 26, 2024 | EF2 | 20 mi | 10.2 mi | 0 / 0 |
| Mar 5, 2022 | EF2 | 15 mi | 19.42 mi | 0 / 0 |
The strongest 12 of 76, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Lamoni
The Storm Prediction Center has 63 hail reports within 10 miles of Lamoni since 1956, made on 38 separate days. Of these, 47 were 1 inch across or larger, and 8 reached 2 inches. The largest, 2.75 inches (baseball size), fell on June 3, 2014. The most recent report is from June 25, 2024. June has the most reports, 25.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Lamoni
The nearest NOAA station with 1991–2020 climate normals is Lamoni, IA, in Lamoni at 1,128 feet. July is the warmest, with an average high of 87°F and low of 66°F; January is the coolest, at 33°F and 14°F. May is the wettest at 5.9 inches of precipitation on average and January the driest at 1.1 inches; the year adds up to 41.2 inches over 68 days with at least a tenth of an inch. Highs reach 90°F on about 27 days a year, almost all from June to September. Lows fall below freezing on about 133 nights a year. Snowfall averages 26.7 inches a year, most of it in January. That 41.2 inches is more than at 123 of the 124 Iowa stations used on this site (99%). Leon, 13 miles northeast, has its own station (Leon 6 ESE, IA): 39.4 inches a year, 1.8 less than here, and a July average high of 86°F against 87°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 33 | 14 | 1.1 | 3 | 7.3 |
| Feb | 38 | 18 | 1.7 | 4 | 6.3 |
| Mar | 51 | 29 | 2.5 | 5 | 4.7 |
| Apr | 63 | 40 | 4.3 | 8 | 1.3 |
| May | 73 | 52 | 5.9 | 9 | 0.0 |
| Jun | 83 | 62 | 5.4 | 8 | 0.0 |
| Jul | 87 | 66 | 4.8 | 7 | 0.0 |
| Aug | 86 | 64 | 4.5 | 6 | 0.0 |
| Sep | 78 | 55 | 3.8 | 5 | 0.0 |
| Oct | 65 | 42 | 3.3 | 6 | 0.3 |
| Nov | 50 | 30 | 2.3 | 4 | 1.9 |
| Dec | 38 | 20 | 1.6 | 4 | 4.9 |
| Year | 62 | 41 | 41.2 | 68 | 26.7 |
Averages for 1991–2020 at Lamoni, IA (1,128 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 Lamoni
Since 1996, the National Weather Service has logged 107 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Lamoni: 60 thunderstorm wind reports, 34 heavy rain events, 7 flash floods and 6 floods. None is recorded as killing or injuring anyone; the NWS estimated $2.2 million in property and crop damage. The strongest thunderstorm gust on record here was 77 mph, on March 6, 2017. July has had the most flash floods, 4 of 7. Of the 240 Iowa cities on this site with a flash flood on record, 42 have had fewer than Lamoni.
June 3, 2014: flash flood 8 miles from the centre of Lamoni — $450,000 damage.
June 5, 2010: flood 3 miles from the centre of Lamoni — $250,000 damage.
July 7, 2014: thunderstorm wind 3 miles from the centre of Lamoni — $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
Decatur County, which includes Lamoni, has been named in 14 federal disaster or emergency declarations since 1969, 12 of them major disasters (by incident: 6 floods, 4 severe storms, 2 biological emergencies, 1 hurricane). The latest major disaster declaration was Covid-19 Pandemic, on March 23, 2020. FEMA's National Risk Index gives Decatur County a Very Low rating for natural hazard risk overall; by hazard: Relatively Low for tornadoes, hail, strong wind and heat waves; Very Low for hurricanes, inland flooding and lightning. It models the county's expected loss from all 18 hazards it covers at $7.8 million a year, the 92nd highest of 99 Iowa counties; of the hazards above, the largest share, $1.8 million (24%), 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 Lamoni
- Leon, IA13 mi
- Mount Ayr, IA15 mi
- Princeton, MO25 mi
- Bethany, MO26 mi
- Osceola, IA29 mi
- Albany, MO33 mi
- Corydon, IA34 mi
- Lenox, IA36 mi
- Creston, IA38 mi
- Bedford, IA40 mi
- Trenton, MO42 mi
- Stanberry, MO42 mi
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