NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit North 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 North Mankato, Minnesota since records began in 1851. Since 1950, 105 tornadoes have touched down within 25 miles, 4 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 105
- EF3 or stronger
- 4
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
4 deaths in all
What the records show for North Mankato
The strongest of the 105 tornadoes within 25 miles was an F4 on March 29, 1998; its path came within 13 miles, and it killed 1 person. The deadliest, an F3 on August 24, 2006, killed 1 person. Of the 105, 9 had paths within 5 miles of the city centre, and 52 have come since 2000. June has had the most tornadoes, 37. The most recent tornado was on September 4, 2025. North Mankato has more tornadoes within 25 miles than 78% of the 341 Minnesota cities on this site. Hail has been reported within 10 miles 112 times since 1956, with stones up to 3 inches (tea cup size). North Mankato has more hail reports within 10 miles than 63% of the 341 Minnesota cities.
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Tornadoes within 25 miles of North Mankato
By decade
- 2020s8
- 2010s26
- 2000s18(1 EF3+)
- 1990s18(3 EF3+)
- 1980s16
- 1970s8
- 1960s7
- 1950s4
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Mar 29, 1998 | F4 | 13 mi | 73.5 mi | 1 / 19 |
| Aug 24, 2006 | F3 | 5 mi | 33 mi | 1 / 37 |
| Mar 29, 1998 | F3 | 8 mi | 12 mi | 1 / 0 |
| Mar 29, 1998 | F3 | 11 mi | 6 mi | 0 / 0 |
| Jun 14, 1976 | F2 | 6 mi | 24.6 mi | 1 / 6 |
| Jun 25, 2010 | EF2 | 12 mi | 1.9 mi | 0 / 0 |
| Jun 25, 2010 | EF2 | 8 mi | 0.86 mi | 0 / 0 |
| Jun 25, 2010 | EF2 | 12 mi | 4.34 mi | 0 / 0 |
| Jul 14, 2003 | F2 | 13 mi | 1.5 mi | 0 / 0 |
| Jul 14, 2003 | F2 | 7 mi | 0.5 mi | 0 / 0 |
| Mar 29, 1998 | F2 | 17 mi | 17 mi | 0 / 2 |
| Aug 7, 1994 | F2 | 16 mi | 5 mi | 0 / 0 |
The strongest 12 of 105, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in North Mankato
The Storm Prediction Center has 112 hail reports within 10 miles of North Mankato since 1956, made on 69 separate days. Of these, 66 were 1 inch across or larger, and 5 reached 2 inches. The largest, 3 inches (tea cup size), fell on July 17, 1965. The most recent report is from August 27, 2025. June has the most reports, 30.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in North Mankato
The nearest NOAA station with 1991–2020 climate normals is Mankato, MN, 2 miles southeast of North 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, 11 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 North Mankato
Since 1996, the National Weather Service has logged 129 flood, rain, thunderstorm wind and lightning events that began within 10 miles of North Mankato: 95 thunderstorm wind reports, 13 heavy rain events, 12 flash floods, 8 floods and 1 lightning strike. They killed 2 people and injured 2, and the NWS estimated $24.4 million in property and crop damage. The strongest thunderstorm gust on record here was 92 mph, on July 20, 1998. June has had the most flash floods, 7 of 12. Of the 312 Minnesota cities on this site with a flash flood on record, 240 have had fewer than North Mankato.
September 17, 2021: thunderstorm wind 2 miles from the centre of North Mankato — 1 killed, 1 injured.
NWS: “A tree branch fell onto a tent at the Land of Memories Park. A family was in the tent and a 4 year old girl was killed from injuries of the fallen tree branch.”
March 21, 2011: flood 6 miles from the centre of North Mankato — 1 killed.
NWS: “Several highways and county roads from North Mankato, northward along the Minnesota River to Le Sueur, Minnesota were impassable due to Spring flooding. Some of the major routes included 169, 22, and 93 and 99.”
May 15, 1998: thunderstorm wind 2 miles from the centre of North Mankato — 1 injured.
NWS: “Measured at law enforcement center. Extensive tree 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 North Mankato's ZIP code 56003 have filed 26 claims with the National Flood Insurance Program since 1979, and were paid $266,000 for buildings and contents, in the dollars of each year. 23% 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, 56 have fewer than North Mankato.
Nicollet County, which includes North Mankato, has been named in 22 federal disaster or emergency declarations since 1965, 18 of them major disasters (by incident: 13 floods, 3 severe storms, 2 biological emergencies, 2 tornadoes). The latest major disaster declaration was Severe Storms and Flooding, on June 28, 2024. FEMA's National Risk Index gives Nicollet County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively High for strong wind; Relatively Moderate for hail; Relatively Low for tornadoes, inland flooding and heat waves; Very Low for lightning. It models the county's expected loss from all 18 hazards it covers at $18.1 million a year, the 32nd highest of 87 Minnesota counties; of the hazards above, the largest share, $8.5 million (47%), 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 North Mankato
- Mankato, MN3 mi
- Eagle Lake, MN9 mi
- Lake Crystal, MN10 mi
- Saint Peter, MN11 mi
- Madison Lake, MN11 mi
- Janesville, MN17 mi
- Mapleton, MN18 mi
- Le Sueur, MN20 mi
- Madelia, MN21 mi
- Le Center, MN21 mi
- New Ulm, MN22 mi
- Waterville, MN23 mi
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