NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Mankato, MN
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 Mankato, Minnesota since records began in 1851. Since 1950, 110 tornadoes have touched down within 25 miles, 5 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 110
- EF3 or stronger
- 5
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
6 deaths in all
What the records show for Mankato
The strongest of the 110 tornadoes within 25 miles was an F4 on March 29, 1998; its path came within 16 miles, and it killed 1 person. The deadliest, an F3 on April 30, 1967, killed 2 people. Of the 110, 10 had paths within 5 miles of the city centre, and 53 have come since 2000. June has had the most tornadoes, 38. The most recent tornado was on September 4, 2025. Mankato has more tornadoes within 25 miles than 84% of the 341 Minnesota cities on this site. Hail has been reported within 10 miles 110 times since 1956, with stones up to 2.5 inches (tennis ball size). Mankato has more hail reports within 10 miles than 63% of the 341 Minnesota cities.
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Tornadoes within 25 miles of Mankato
By decade
- 2020s8
- 2010s27
- 2000s18(1 EF3+)
- 1990s19(3 EF3+)
- 1980s17
- 1970s10
- 1960s8(1 EF3+)
- 1950s3
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Mar 29, 1998 | F4 | 16 mi | 73.5 mi | 1 / 19 |
| Apr 30, 1967 | F3 | 22 mi | 18.4 mi | 2 / 23 |
| Aug 24, 2006 | F3 | 7 mi | 33 mi | 1 / 37 |
| Mar 29, 1998 | F3 | 11 mi | 12 mi | 1 / 0 |
| Mar 29, 1998 | F3 | 12 mi | 6 mi | 0 / 0 |
| Jun 14, 1976 | F2 | 3 mi | 24.6 mi | 1 / 6 |
| Jun 25, 2010 | EF2 | 11 mi | 1.9 mi | 0 / 0 |
| Jun 25, 2010 | EF2 | 8 mi | 0.86 mi | 0 / 0 |
| Jun 25, 2010 | EF2 | 15 mi | 4.34 mi | 0 / 0 |
| Jul 14, 2003 | F2 | 10 mi | 1.5 mi | 0 / 0 |
| Jul 14, 2003 | F2 | 8 mi | 0.5 mi | 0 / 0 |
| Mar 29, 1998 | F2 | 17 mi | 17 mi | 0 / 2 |
The strongest 12 of 110, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Mankato
The Storm Prediction Center has 110 hail reports within 10 miles of Mankato since 1956, made on 69 separate days. Of these, 67 were 1 inch across or larger, and 4 reached 2 inches. The largest, 2.5 inches (tennis ball size), fell on May 2, 2012. The most recent report is from August 27, 2025. June has the most reports, 28.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Mankato
The nearest NOAA station with 1991–2020 climate normals is Mankato, MN, 1 mile west of Mankato at 850 feet. July is the warmest, with an average high of 82°F and low of 62°F; January is the coolest, at 24°F and 6°F. June is the wettest at 5.6 inches of precipitation on average and February the driest at 0.8 inches; the year adds up to 33.9 inches over 64 days with at least a tenth of an inch. Highs reach 90°F on about 11 days a year, almost all from May to August. Lows fall below freezing on about 161 nights a year. Snowfall averages 38.7 inches a year, most of it in December. That 33.9 inches is more than at 98 of the 124 Minnesota stations used on this site (79%). Saint Peter, 12 miles north, has its own station (St Peter, MN): 32.6 inches a year, 1.3 less than here, and the same July average high, 82°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 24 | 6 | 1.0 | 3 | 8.2 |
| Feb | 29 | 9 | 0.8 | 3 | 6.9 |
| Mar | 41 | 22 | 1.9 | 4 | 7.4 |
| Apr | 57 | 34 | 3.3 | 7 | 1.6 |
| May | 69 | 47 | 4.2 | 8 | 0.0 |
| Jun | 79 | 58 | 5.6 | 9 | 0.0 |
| Jul | 82 | 62 | 4.3 | 7 | 0.0 |
| Aug | 80 | 59 | 4.3 | 6 | 0.0 |
| Sep | 74 | 50 | 3.3 | 5 | 0.0 |
| Oct | 60 | 37 | 2.4 | 5 | 0.1 |
| Nov | 43 | 25 | 1.7 | 4 | 5.9 |
| Dec | 29 | 13 | 1.1 | 3 | 8.6 |
| Year | 55 | 35 | 33.9 | 64 | 38.7 |
Averages for 1991–2020 at Mankato, MN (850 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 Mankato
Since 1996, the National Weather Service has logged 118 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Mankato: 83 thunderstorm wind reports, 14 flash floods, 12 heavy rain events, 8 floods and 1 lightning strike. They killed 2 people and injured 2, and the NWS estimated $24.3 million in property and crop damage. The strongest thunderstorm gust on record here was 75 mph, on July 20, 1998. June has had the most flash floods, 7 of 14. Of the 312 Minnesota cities on this site with a flash flood on record, 255 have had fewer than Mankato.
September 17, 2021: thunderstorm wind 2 miles from the centre of Mankato — 1 killed, 1 injured.
March 21, 2011: flood 8 miles from the centre of Mankato — 1 killed.
May 15, 1998: thunderstorm wind 2 miles from the centre of Mankato — 1 injured.
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 Mankato's ZIP code 56001 have filed 62 claims with the National Flood Insurance Program since 1978, and were paid $785,000 for buildings and contents, in the dollars of each year. 31% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 120 Minnesota cities on this site with 10 or more claims, 96 have fewer than Mankato.
Blue Earth County, which includes Mankato, has been named in 24 federal disaster or emergency declarations since 1965, 20 of them major disasters (by incident: 13 floods, 3 severe storms, 3 tornadoes, 2 biological emergencies). The latest major disaster declaration was Severe Storms and Flooding, on June 28, 2024. FEMA's National Risk Index gives Blue Earth County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively High for strong wind; Relatively Moderate for tornadoes and hail; Relatively Low for inland flooding and heat waves; Very Low for lightning. It models the county's expected loss from all 18 hazards it covers at $33.2 million a year, the 16th highest of 87 Minnesota counties; of the hazards above, the largest share, $11.9 million (36%), 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 Mankato
- North Mankato, MN3 mi
- Eagle Lake, MN6 mi
- Madison Lake, MN9 mi
- Lake Crystal, MN12 mi
- Saint Peter, MN12 mi
- Janesville, MN14 mi
- Mapleton, MN16 mi
- Le Sueur, MN21 mi
- Waterville, MN21 mi
- Le Center, MN21 mi
- Madelia, MN23 mi
- Waseca, MN25 mi
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