Grant County
Population 6,085 (2025) 548 sq mi
Grant County has recorded 33 tornadoes since 1950, 25th most of 87 counties in Minnesota; the most recent was on August 21, 2025.
Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed
- Tornado damage paths since 195033
- Wildfire burn scars since 19842
At a glance
The record for Grant County in eight numbers. Each links to its section below.
Tornadoes
About one every 2.3 years since 1950, 2 of them rated F3/EF3 or stronger.
Strongest
July 8, 2020
EF4, 8.9 mile path
650 yards wide; 1 killed along the whole path.
Most recent
Thursday, August 21, 2025
EFU, 0.2 mile path
Within the past year.
Every recorded tornado
| Aug 21, 2025 | EFU | 0.2 | 0 | 0 |
| Aug 21, 2025 | EFU | 0.2 | 0 | 0 |
| May 30, 2022 | EF2 | 11.0 | 0 | 0 |
| May 30, 2022 | EF2 | 6.8 | 0 | 0 |
| May 12, 2022 | EF1 | 2.9 | 0 | 0 |
| Aug 14, 2020 | EF1 | 1.7 | 0 | 0 |
| Aug 14, 2020 | EF2 | 13.4 | 0 | 0 |
| Aug 14, 2020 | EF0 | 1.0 | 0 | 0 |
| Aug 14, 2020 | EF0 | 0.4 | 0 | 0 |
| Aug 14, 2020 | EF0 | 4.0 | 0 | 0 |
| Jul 8, 2020 | EF4 | 8.9 | 2 | 1 |
| Jun 13, 2017 | EF0 | 0.5 | 0 | 0 |
| Jul 12, 2015 | EF1 | 2.0 | 0 | 0 |
| Jul 12, 2015 | EF0 | 1.9 | 0 | 0 |
| Jun 17, 2012 | EF0 | 2.9 | 0 | 0 |
| Aug 7, 2010 | EF1 | 21.0 | 0 | 0 |
| Jul 10, 2010 | EF0 | 0.2 | 0 | 0 |
| Jul 10, 2010 | EF0 | 3.0 | 0 | 0 |
| Jun 5, 2006 | F1 | 1.5 | 0 | 0 |
| Jun 20, 2005 | F1 | 0.2 | 0 | 0 |
| Jun 13, 2001 | F0 | 0.5 | 0 | 0 |
| Jun 13, 2001 | F0 | 0.5 | 0 | 0 |
| Jun 30, 1991 | F1 | 0.2 | 0 | 0 |
| May 30, 1985 | F0 | 1.5 | 0 | 0 |
| Jun 4, 1984 | F0 | 0.1 | 0 | 0 |
| Apr 26, 1984 | F2 | 12.5 | 0 | 0 |
| May 10, 1982 | F3 | 15.0 | 0 | 0 |
| Jul 31, 1981 | F0 | 0.2 | 0 | 0 |
| Jun 28, 1979 | F1 | 5.4 | 0 | 0 |
| Sep 5, 1969 | F1 | 0.5 | 0 | 0 |
| Sep 5, 1969 | F1 | 10.2 | 0 | 0 |
| Aug 18, 1968 | F1 | 6.4 | 0 | 0 |
| Jul 2, 1952 | F1 | 4.1 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Grant County: 0.
- Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.
Storm Prediction Center severe weather database, 1950 to 2025.
Hurricanes and tropical storms
No tropical storm or hurricane has tracked within 100 miles since records began in 1851.
Wildfire and smoke
1,015 acres burned in 2 large fires since 1984, equal to 0.3% of the land.
Largest
October 23, 2003
Pomme De Terre South Fire, 507 acres
507 acres inside Grant County.
Most recent
April 23, 2008
Pomme De Terre South Fire
508 acres in total.
Every large fire
| Pomme De Terre South | 2008 | 507 | 508 |
| Pomme De Terre South | 2003 | 507 | 507 |
- Large fires mapped by the Monitoring Trends in Burn Severity program since 1984: 1,000 acres or more in the West, 500 or more in the East. Prescribed burns are excluded. Acres here are the part of each perimeter inside this place.
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service), 1984 to 2026.
Smoke overhead
Smokiest year
2023: 77 days
Heavy smoke on 36 days in 2021, the most of any year.
Last 10 years
33.9 days a year
Medium or heavy smoke, 2016 to 2025.
2025
30 days
Medium or heavy smoke. 45 so far in 2026.
- A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.
NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.
Floods and flood insurance
3 federal flood insurance claims since 1997, with $62,000 paid.
Flood events since 1996
- Flash Flood10
- Flood10
- Heavy Rain1
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).
OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.
Drought
In severe drought or worse for 107 of 1,581 months since 1895 (7%); the longest spell lasted 24 months.
107
Months in severe drought or worse since 1895
52
Months in extreme drought
7%
Share of all months, severe or worse
9
Drought reports to the Weather Service since 1996
Lowest reading
August 1934
−8.24, extreme drought
Longest severe spell
24 months
July 1933 to June 1935.
Latest month
September 2026
+1.06, slightly wet
Last severe month: July 2023.
- The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.
NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.
Earthquakes
2 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 4.6 in 1975.
0
Magnitude 2.5+ inside the county since 1973
3
Magnitude 3+ within 50 miles since 1973
2
Magnitude 4+ within 50 miles since 1900
0
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
July 9, 1975
Magnitude 4.6
Near Morris, Minnesota; 12.0 miles away, 6.2 miles deep.
Most recent, magnitude 3 or more
October 20, 1995
Magnitude 3.7
8 km SSE of New Effington, South Dakota; 29.5 miles away.
Every earthquake of magnitude 4 or more within 50 miles
| Jun 4, 1993 | 4.1 | 6.2 |
| Jul 9, 1975 | 4.6 | 12.0 |
- Earthquakes of magnitude 2.5 or more in the USGS Comprehensive Catalog since 1900. Within 50 miles means the epicentre lies within 50 miles of the county boundary (or inside the county).
- Small earthquakes were under-recorded before the modern seismic networks of the 1970s and are still missed in remote areas, so early decades read low. Magnitudes are as the catalogue reports them and mix scales (moment, local and body-wave).
USGS ANSS Comprehensive Earthquake Catalog, 1900 to present, retrieved October 30, 2026.
Severe weather and other events
539 events in the National Weather Service record, 499 of them since 1996.
70
Hail reports, 1 inch or larger
6
Hail, 2 inches or larger
84
Damaging gusts, 58 mph+
132
Winter weather events since 1996
4
Heat events since 1996
56
Cold events since 1996
Largest hail
July 2, 2003
3.75 inches
Strongest measured or estimated gust
June 13, 2017
92 mph
More event types since 1996
| Lightning | 4 | 0 |
Costliest events since 1996
- Apr 9, 1997Flood, Grant$3.0 million
National Weather Service narrative
Numerous county roads and bridges were closed due to overland flooding and the rising Mustinka River. The towns of Herman and Norcross experienced some flooding in residential areas.
- May 30, 2022Tornado$2.0 million
National Weather Service narrative
This tornado was wrapped in damaging downburst winds and rain as it rapidly tracked northeast for roughly 6 miles to around 3 SE of Elbow Lake by 419 pm CDT. Numerous wooden single and double X-Braced power poles were snapped, including a nearly 2-mile stretch of double pole structures along 240th street, as a broader downburst wind pattern developed. Numerous trees of all kinds were snapped or uprooted. Several farm buildings and grain bins were destroyed. Max winds to 120 mph, Max width to 350 yards.
- May 30, 2022Tornado$1.0 million
National Weather Service narrative
This tornado was wrapped in damaging downburst winds and rain as it rapidly tracked to the northeast for about 11 miles, ending around 4.3 miles NNE of Elbow Lake by 424 pm CDT. Numerous ash, spruce, cottonwood, and willow trees were snapped or uprooted. Numerous wooden power poles were snapped Numerous farm outbuilding and steel grain bins were destroyed, with roofing and wall panels carried downwind for a mile or more. Max winds were 115 mph, with a max width to 400 yards.
- May 30, 2022Thunderstorm Wind$500,000
National Weather Service narrative
Numerous large ash and spruce trees snapped or uprooted around town. One of 4 large 100k bushel steel grain bins was blown down at the Elbow Lake cooperative grain elevator. Wind gusts likely ranged from 70 to 90 mph for several seconds. Time estimated based on radar. The Elbow Lake wind sensor went offline due to widespread power outages.
- May 30, 2022Thunderstorm Wind$500,000
National Weather Service narrative
Numerous large ash and spruce trees snapped or uprooted at the Tipsinah Mounds Campground. Damaging downburst winds impacted much of Erdahl Township with wind gusts from 70 to 90 mph. Two storage building were blown down near the Tipsinah Mounds Golf Course. Report augmented by NWS damage survey. Time estimated based on radar.
- Apr 5, 2001Flood, Grant$500,000
National Weather Service narrative
Overland flooding from the spring snowmelt closed numerous roads in Grant county. Several homes in Herman and Barrett reported basement flooding.
- Jun 13, 2017Thunderstorm Wind$250,000
National Weather Service narrative
Several semi-trucks were blown off Interstate 94 near Ashby.
- Jul 29, 2008Thunderstorm Wind$150,000
National Weather Service narrative
Roofs were lifted and torn off, which resulted in walls collapsing on two large hog finishing barns in southeast Land Township. The 800 hogs were not injured.
- May 30, 2022Thunderstorm Wind$120,000
National Weather Service narrative
A semi tractor-trailer combination traveling on westbound I-94 was blown over onto an SUV that had parked on the shoulder of the highway due to an approaching storm. Reports indicate that three individuals were transported to a local hospital with non-life threatening injuries. Time estimated based on radar.
- Jul 8, 2020Tornado$100,000
National Weather Service narrative
This tornado began in Grant County, but after about two miles, it crossed into Otter Tail County, where it ended about 5 miles east of Dalton. The total track through both counties was about 9 miles. Peak winds were estimated at 170 mph, based on available damage indicators. At least 10 farmsteads were impacted, with three homes, one pole shed, and one machine shed destroyed.
- Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.
NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.
Weather records
From Alexandria Chandler Field, 26.4 miles from the county’s population centre, with records from 1940.
- All-time high
- 104°FAug 7, 1983
- All-time low
- −38°F2 times, most recently Jan 16, 1977
- Warmest night
- 80°FJul 30, 2006
- Coldest day
- −24°F2 times, most recently Jan 18, 1994
- Wettest day
- 5.69 inJul 19, 1945
- Snowiest day
- 12.2 inJan 10, 1975
- Hottest year
- 1987mean 46.9°F
- Coldest year
- 1950mean 37.2°F
- Wettest year
- 198640.03 in
- Driest year
- 197611.39 in
Station Alexandria Chandler Field (USW00014910), 1,420 ft elevation, 26.4 miles from the population centre. Daily records from 1940 to October 26, 2026; 99.2% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.
NOAA NCEI Global Historical Climatology Network Daily.
Federal disaster declarations
19 since 1953. The most recent: Severe Storms and Flooding, July 19, 2023.
| Jul 19, 2023 | Flood | DR-4722-MN |
| Aug 9, 2022 | Severe Storm | DR-4666-MN |
| Jul 8, 2022 | Severe Storm | DR-4658-MN |
| Apr 7, 2020 | Biological | DR-4531-MN |
| Mar 13, 2020 | Biological | EM-3453-MN |
| Jun 12, 2019 | Flood | DR-4442-MN |
| Jul 25, 2013 | Severe Storm | DR-4131-MN |
| May 10, 2011 | Flood | DR-1982-MN |
| Apr 19, 2010 | Flood | DR-1900-MN |
| Apr 9, 2009 | Severe Storm | DR-1830-MN |
| Sep 13, 2005 | Hurricane | EM-3242-MN |
| May 16, 2001 | Flood | DR-1370-MN |
| Apr 8, 1997 | Flood | DR-1175-MN |
| Jan 16, 1997 | Severe Storm | DR-1158-MN |
| Jun 11, 1993 | Severe Storm | DR-993-MN |
| Jun 17, 1976 | Drought | EM-3013-MN |
| Jul 17, 1975 | Severe Storm | DR-476-MN |
| Apr 18, 1969 | Flood | DR-255-MN |
| Apr 11, 1965 | Flood | DR-188-MN |
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).
OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.
How this compares
Where Grant County stands among 87 counties in Minnesota and 3,143 in the United States.
| Tornadoes since 1950 | 33 | 25 / 87 |
| Tornadoes rated F3/EF3 or stronger | 2 | 19 / 87 |
| Tropical cyclones within 50 mi | 0 | — |
| Hurricane-strength passes within 50 mi | 0 | — |
| Wildfire acres since 1984 | 1,015 | 35 / 87 |
| Flood insurance claims | 3 | 81 / 87 |
| Flood insurance paid | $62,000 | 79 / 87 |
| Disaster declarations | 19 | 28 / 87 |
| Flood events since 1996 | 21 | 60 / 87 |
| Hail and wind events since 1996 | 239 | 51 / 87 |
| Winter storm events since 1996 | 132 | 29 / 87 |
| Reported damage since 1996 | $8.7 million | 53 / 87 |
| River crests at major flood stage | 0 | — |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 107 | 84 / 87 |
| Medium or heavy smoke days a year, last 10 years | 33.9 | 18 / 87 |
| Earthquakes M4+ within 50 mi since 1900 | 2 | 4 / 87 |
| Earthquakes M2.5+ in the county since 1973 | 0 | — |
Neighbouring counties
| Douglas County | 26 | 0 |
| Otter Tail County | 89 | 0 |
| Pope County | 31 | 0 |
| Stevens County | 18 | 0 |
| Traverse County | 18 | 0 |
| Wilkin County | 35 | 0 |
Sources and vintage
Every number on this page comes from these public records.
- Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
- Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
- Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
- Storm events NOAA NCEI Storm Events Database, through 2026.
- Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
- Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
- Weather records NOAA NCEI Global Historical Climatology Network Daily, station USW00014910.
- River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
- Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
- Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
- Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.
Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.