NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Mandan, ND
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 Mandan, North Dakota since records began in 1851. Since 1950, 62 tornadoes have touched down within 25 miles, 3 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 62
- EF3 or stronger
- 3
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
2 deaths in all
What the records show for Mandan
The strongest of the 62 tornadoes within 25 miles was an F5 on May 29, 1953; its path came within 24 miles, and it killed 2 people. Of the 62, 2 had paths within 5 miles of the city centre, and 31 have come since 2000. June has had the most tornadoes, 27. The most recent tornado was on September 14, 2025. Mandan has more tornadoes within 25 miles than 56% of the 37 North Dakota cities on this site. Hail has been reported within 10 miles 260 times since 1959, with stones up to 4.5 inches (grapefruit size). Mandan has more hail reports within 10 miles than 94% of the 37 North Dakota cities.
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Tornadoes within 25 miles of Mandan
By decade
- 2020s11
- 2010s7
- 2000s13
- 1990s10
- 1980s4(1 EF3+)
- 1970s10(1 EF3+)
- 1960s3
- 1950s4(1 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| May 29, 1953 | F5 | 24 mi | 14.8 mi | 2 / 20 |
| Jul 30, 1981 | F3 | 8 mi | 23.9 mi | 0 / 0 |
| May 25, 1978 | F3 | 1 mi | 2.5 mi | 0 / 0 |
| Jun 20, 2025 | EF2 | 18 mi | 5.62 mi | 0 / 0 |
| Jun 17, 1956 | F2 | 15 mi | 37.1 mi | 0 / 0 |
| Sep 14, 2025 | EF1 | 17 mi | 2.71 mi | 0 / 0 |
| Jun 27, 2025 | EF1 | 10 mi | 0.32 mi | 0 / 0 |
| Jun 25, 2010 | EF1 | 6 mi | 1.64 mi | 0 / 0 |
| Jun 6, 2005 | F1 | 11 mi | 1 mi | 0 / 0 |
| Nov 1, 2000 | F1 | 10 mi | 22 mi | 0 / 0 |
| Nov 1, 2000 | F1 | 8 mi | 3 mi | 0 / 2 |
| Jun 11, 1976 | F1 | 8 mi | 0.1 mi | 0 / 0 |
The strongest 12 of 62, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Mandan
The Storm Prediction Center has 260 hail reports within 10 miles of Mandan since 1959, made on 118 separate days. Of these, 169 were 1 inch across or larger, and 30 reached 2 inches. The largest size, 4.5 inches (grapefruit size), was reported on 2 days, most recently July 29, 2024. The most recent report is from July 22, 2025. July has the most reports, 101.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Mandan
The nearest NOAA station with 1991–2020 climate normals is Mandan Exp Stn, ND, in Mandan at 1,750 feet. July is the warmest, with an average high of 83°F and low of 58°F; January is the coolest, at 23°F and 3°F. June is the wettest at 3.4 inches of precipitation on average and January and February the driest at 0.4 inches; the year adds up to 18.3 inches over 39 days with at least a tenth of an inch. Highs reach 90°F on about 15 days a year, almost all from June to September. Lows fall below freezing on about 184 nights a year. That 18.3 inches is more than at 9 of the 31 North Dakota stations used on this site (29%). Bismarck, 7 miles east, has its own station (Bismarck 2.4 NNW, ND): 20.2 inches a year, 1.9 more than here, and a July average high of 82°F against 83°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" |
|---|---|---|---|---|
| Jan | 23 | 3 | 0.4 | 1 |
| Feb | 27 | 6 | 0.4 | 1 |
| Mar | 40 | 18 | 0.6 | 2 |
| Apr | 54 | 30 | 1.3 | 4 |
| May | 67 | 43 | 2.6 | 6 |
| Jun | 76 | 53 | 3.4 | 7 |
| Jul | 83 | 58 | 3.2 | 6 |
| Aug | 82 | 56 | 2.2 | 4 |
| Sep | 72 | 46 | 1.6 | 4 |
| Oct | 56 | 32 | 1.5 | 3 |
| Nov | 40 | 19 | 0.6 | 2 |
| Dec | 27 | 8 | 0.5 | 2 |
| Year | 54 | 31 | 18.3 | 39 |
Averages for 1991–2020 at Mandan Exp Stn, ND (1,750 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 Mandan
Since 1996, the National Weather Service has logged 184 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Mandan: 159 thunderstorm wind reports, 15 flash floods, 9 heavy rain events and 1 flood. They killed 1 person and injured 1, and the NWS estimated $21.0 million in property and crop damage. The strongest thunderstorm gust on record here was 90 mph, on June 25, 1999. August has had the most flash floods, 6 of 15. Of the 31 North Dakota cities on this site with a flash flood on record, 26 have had fewer than Mandan.
June 25, 1999: thunderstorm wind 1 mile from the centre of Mandan — 1 killed, $2.0 million damage.
NWS: “One man killed while attempting to land small plane at the Mandan airport. Extensive damage occurred to building roofs and large trees were damage or destroyed.”
April 13, 2010: thunderstorm wind 1 mile from the centre of Mandan — 1 injured, $25,000 damage.
NWS: “High winds from thunderstorms caused a large tree to fall on a mobile home in Mandan. One person in the home received minor injuries.”
August 13, 2024: flash flood 7 miles from the centre of Mandan — $8.0 million damage.
NWS: “Torrential downpours with between two and five inches of rain moved through the Bismarck area as a very slow moving thunderstorm passed over. Storm sewer and drainage systems in the city were overwhelmed by the intense rain rates.”
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 Mandan's ZIP code 58554 have filed 198 claims with the National Flood Insurance Program since 1978, and were paid $2.8 million for buildings and contents, in the dollars of each year. The most came from Late spring storms in 2011: 78 claims (39% of all) and $2.3 million. 46% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 20 North Dakota cities on this site with 10 or more claims, 10 have fewer than Mandan.
| Event | Claims | Paid |
|---|---|---|
| Late spring storms2011 | 78 | $2.3 million |
Morton County, which includes Mandan, has been named in 27 federal disaster or emergency declarations since 1966, 24 of them major disasters (by incident: 16 floods, 8 severe storms, 2 biological emergencies, 1 coastal storm). The latest major disaster declaration was Severe Storm, Tornadoes, and Straight-Line Winds, on September 11, 2025. FEMA's National Risk Index gives Morton County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively High for hail; Relatively Low for tornadoes, inland flooding and strong wind; Very Low for lightning and heat waves. It models the county's expected loss from all 18 hazards it covers at $25.6 million a year, the 4th highest of 53 North Dakota counties; of the hazards above, the largest share, $7.9 million (31%), 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 Mandan
- Bismarck, ND7 mi
- Hazen, ND47 mi
- Beulah, ND49 mi
- Fort Yates, ND53 mi
- Garrison, ND65 mi
- Harvey, ND83 mi
- Dickinson, ND90 mi
- Mobridge, SD95 mi
- Carrington, ND96 mi
- Minot, ND100 mi
- Jamestown, ND103 mi
- Rugby, ND109 mi
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