NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Thompson, 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 Thompson, North Dakota since records began in 1851. Since 1950, 130 tornadoes have touched down within 25 miles, 4 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 130
- EF3 or stronger
- 4
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
3 deaths in all
What the records show for Thompson
The highest rating among the 130 tornadoes within 25 miles is EF4, reached 2 times; the most recent, on June 17, 2010, came within 10 miles. The deadliest, an F1 on August 31, 1975, killed 2 people. Of the 130, 9 had paths within 5 miles of the city centre, and 94 have come since 2000. June has had the most tornadoes, 55. The most recent tornado was on August 8, 2025. Thompson has more tornadoes within 25 miles than any other of the 37 North Dakota cities on this site. Hail has been reported within 10 miles 90 times since 1960, with stones up to 2.5 inches (tennis ball size). Thompson has more hail reports within 10 miles than 72% of the 37 North Dakota cities.
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Tornadoes within 25 miles of Thompson
By decade
- 2020s18
- 2010s39(2 EF3+)
- 2000s37(1 EF3+)
- 1990s10
- 1980s8
- 1970s9
- 1960s1
- 1950s8(1 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Aug 26, 2007 | EF4 | 20 mi | 5 mi | 1 / 18 |
| Jun 17, 2010 | EF4 | 10 mi | 17 mi | 0 / 1 |
| Aug 27, 2016 | EF3 | 20 mi | 3 mi | 0 / 0 |
| Aug 11, 1958 | F3 | 10 mi | 0.1 mi | 0 / 2 |
| Jul 11, 2017 | EF2 | 13 mi | 22 mi | 0 / 0 |
| Jun 27, 2015 | EF2 | 11 mi | 3 mi | 0 / 0 |
| Jul 21, 2014 | EF2 | 13 mi | 37.92 mi | 0 / 0 |
| Aug 10, 2010 | EF2 | 9 mi | 0.9 mi | 0 / 0 |
| Jun 17, 2010 | EF2 | 12 mi | 7 mi | 0 / 0 |
| Aug 26, 2007 | EF2 | 8 mi | 5 mi | 0 / 0 |
| Jun 23, 2005 | F2 | 18 mi | 1.5 mi | 0 / 0 |
| Jun 23, 2005 | F2 | 10 mi | 2 mi | 0 / 0 |
The strongest 12 of 130, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Thompson
The Storm Prediction Center has 90 hail reports within 10 miles of Thompson since 1960, made on 57 separate days. Of these, 49 were 1 inch across or larger, and 2 reached 2 inches. The largest, 2.5 inches (tennis ball size), fell on August 27, 2016. The most recent report is from July 7, 2025. August has the most reports, 26.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Thompson
The nearest NOAA station with 1991–2020 climate normals is Grand Forks Univ (NWS), ND, 10 miles north of Thompson at 830 feet. July is the warmest, with an average high of 80°F and low of 59°F; January is the coolest, at 15°F and -1°F. June is the wettest at 4.1 inches of precipitation on average and January the driest at 0.5 inches; the year adds up to 22.8 inches over 47 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 179 nights a year. Snowfall averages 48.7 inches a year, most of it in December. That 22.8 inches is more than at 24 of the 31 North Dakota stations used on this site (77%). Mayville, 21 miles southwest, has its own station (Mayville, ND): 24.0 inches a year, 1.2 more than here, and the same July average high, 80°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 15 | -1 | 0.5 | 2 | 9.5 |
| Feb | 20 | 3 | 0.6 | 2 | 8.2 |
| Mar | 34 | 17 | 0.9 | 3 | 7.8 |
| Apr | 52 | 31 | 1.2 | 3 | 3.0 |
| May | 67 | 44 | 3.0 | 6 | 0.1 |
| Jun | 76 | 55 | 4.1 | 7 | 0.0 |
| Jul | 80 | 59 | 3.6 | 6 | 0.0 |
| Aug | 79 | 57 | 3.0 | 5 | 0.0 |
| Sep | 70 | 47 | 2.4 | 4 | 0.0 |
| Oct | 53 | 35 | 2.0 | 4 | 1.5 |
| Nov | 35 | 20 | 0.8 | 2 | 5.1 |
| Dec | 21 | 6 | 0.7 | 2 | 13.5 |
| Year | 50 | 31 | 22.8 | 47 | 48.7 |
Averages for 1991–2020 at Grand Forks Univ (NWS), ND (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 Thompson
Since 1996, the National Weather Service has logged 89 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Thompson: 81 thunderstorm wind reports, 4 flash floods, 2 floods, 1 heavy rain event and 1 lightning strike. None is recorded as killing or injuring anyone; the NWS estimated $171,000 in property and crop damage. The strongest thunderstorm gust on record here was 100 mph, on July 3, 2005.
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 Thompson's ZIP code 58278 have filed 13 claims with the National Flood Insurance Program since 1979, and were paid $97,000 for buildings and contents, in the dollars of each year. 77% 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, 1 have fewer than Thompson.
Grand Forks County, which includes Thompson, has been named in 38 federal disaster or emergency declarations since 1965, 33 of them major disasters (by incident: 23 floods, 12 severe storms, 2 biological emergencies, 1 coastal storm). The latest major disaster declaration was Severe Storms, Straight-Line Winds, and Tornadoes, on October 22, 2025. FEMA's National Risk Index gives Grand Forks County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively Moderate for hail and strong wind; Relatively Low for tornadoes, inland flooding and lightning; Very Low for heat waves. It models the county's expected loss from all 18 hazards it covers at $25.0 million a year, the 5th highest of 53 North Dakota counties; of the hazards above, the largest share, $12.1 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.
Cities near Thompson
- Grand Forks, ND10 mi
- East Grand Forks, MN14 mi
- Mayville, ND21 mi
- Crookston, MN25 mi
- Hillsboro, ND27 mi
- Warren, MN34 mi
- Red Lake Falls, MN39 mi
- Ada, MN42 mi
- Grafton, ND47 mi
- Thief River Falls, MN49 mi
- Casselton, ND60 mi
- West Fargo, ND63 mi
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