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 for Grant County Tornado: 76th percentile. Tropical: 0th percentile. Wildfire: 16th percentile. Flood: 28th percentile. Hail & wind: 51th percentile. Heat: 25th percentile. Cold: 92th percentile. Winter: 80th percentile. TORTROPFIREFLOODSEVEREHEATCOLDWINTER

Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed

2026
  • 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 since 1950

33

25th of 87 in Minnesota

About as many as the typical Minnesota county

Details

Flood insurance claims

3

81st of 87 in Minnesota

$62,000 paid since 1997

Details

Acres burned since 1984

1,015

35th of 87 in Minnesota

2 large fires; the largest was Pomme De Terre South, 2003

Details

Strongest tornado

EF4

July 8, 2020, 8.9 mile path

Largest earthquake within 50 mi

4.6magnitude

July 9, 1975, 12.0 miles away

Details

Federal disaster declarations

19

Most recent: Severe Storms and Flooding, 2023

Details

Record high

104°F

August 7, 1983

Details

Record low

−38°F

Reached 2 times, most recently January 16, 1977

Details

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.

Tornadoes by decade Doppler radar era² 1950s: 1 1 1960s: 3 3 1970s: 1 1 1980s: 5 5 1990s: 1 1 2000s: 4 4 2010s: 7 7 2020s: 11 11 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 0 M: 0 A: 1 M: 5 J: 9 9 J: 7 A: 9 S: 2 O: 0 N: 0 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes in Grant County since 1950
Aug 21, 2025EFU0.23000
Aug 21, 2025EFU0.23000
May 30, 2022EF211.040000
May 30, 2022EF26.835000
May 12, 2022EF12.95000
Aug 14, 2020EF11.715000
Aug 14, 2020EF213.415000
Aug 14, 2020EF01.04000
Aug 14, 2020EF00.43000
Aug 14, 2020EF04.05000
Jul 8, 2020EF48.965021
Jun 13, 2017EF00.57500
Jul 12, 2015EF12.010000
Jul 12, 2015EF01.910000
Jun 17, 2012EF02.93000
Aug 7, 2010EF121.010000
Jul 10, 2010EF00.22500
Jul 10, 2010EF03.03000
Jun 5, 2006F11.55000
Jun 20, 2005F10.210000
Jun 13, 2001F00.52500
Jun 13, 2001F00.52500
Jun 30, 1991F10.21000
May 30, 1985F01.520000
Jun 4, 1984F00.11000
Apr 26, 1984F212.580000
May 10, 1982F315.08000
Jul 31, 1981F00.23300
Jun 28, 1979F15.41000
Sep 5, 1969F10.510000
Sep 5, 1969F110.210000
Aug 18, 1968F16.43300
Jul 2, 1952F14.121700
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Grant County: 0.
  2. 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.

Acres burned since 1984, cumulative 2003: 5082008: 507 1,015 acres 198519901995200020052010201520202025
Running total of acres burned inside the county (line) and each year’s acres (bars).

Every large fire

Large wildfires since 1984
Pomme De Terre South2008507508
Pomme De Terre South2003507507
  1. 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.

Days with medium or heavy smoke overhead, by year 2011: 9 2012: 25 2013: 22 2014: 20 2015: 25 2016: 8 2017: 15 2018: 36 2019: 13 2020: 25 2021: 60 2022: 27 2023: 77 77 2024: 48 2025: 30 201120122013201420152016201720182019202020212022202320242025
Days each year on which a satellite-traced plume of medium or heavy smoke covered the county’s population centre, 2011 to 2025.
  1. 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.

Federal flood insurance claims by year
Claims per year since 1997. Years with fewer than five claims are not shown.

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.

Months in severe drought or worse, by year 1895: 0 1896: 0 1897: 0 1898: 0 1899: 0 1900: 2 1901: 0 1902: 0 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 0 1909: 0 1910: 3 1911: 6 1912: 0 1913: 0 1914: 0 1915: 0 1916: 0 1917: 0 1918: 5 1919: 0 1920: 0 1921: 0 1922: 2 1923: 0 1924: 1 1925: 0 1926: 0 1927: 0 1928: 0 1929: 0 1930: 0 1931: 0 1932: 0 1933: 6 1934: 12 12 1935: 6 1936: 4 1937: 0 1938: 0 1939: 0 1940: 0 1941: 0 1942: 0 1943: 0 1944: 0 1945: 0 1946: 0 1947: 0 1948: 0 1949: 0 1950: 0 1951: 0 1952: 0 1953: 0 1954: 0 1955: 5 1956: 2 1957: 0 1958: 0 1959: 1 1960: 0 1961: 0 1962: 0 1963: 0 1964: 1 1965: 0 1966: 0 1967: 0 1968: 2 1969: 0 1970: 1 1971: 0 1972: 0 1973: 0 1974: 0 1975: 0 1976: 6 1977: 6 1978: 0 1979: 0 1980: 0 1981: 6 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 5 1988: 12 1989: 7 1990: 0 1991: 0 1992: 0 1993: 0 1994: 0 1995: 0 1996: 0 1997: 0 1998: 0 1999: 0 2000: 0 2001: 0 2002: 0 2003: 0 2004: 1 2005: 0 2006: 0 2007: 0 2008: 0 2009: 0 2010: 0 2011: 0 2012: 0 2013: 0 2014: 0 2015: 0 2016: 1 2017: 0 2018: 0 2019: 0 2020: 0 2021: 1 2022: 1 2023: 2 2024: 0 2025: 0 18951905191519251935194519551965197519851995200520152025
Months each year with a Palmer index of −3 or lower, 1895 to 2025. Twelve means the whole year.
  1. 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.

Earthquakes of magnitude 3 or more within 50 miles, by year 1973: 0 1974: 0 1975: 1 1 1976: 0 1977: 0 1978: 0 1979: 0 1980: 0 1981: 0 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 0 1988: 0 1989: 0 1990: 0 1991: 0 1992: 0 1993: 1 1994: 0 1995: 1 1996: 0 1997: 0 1998: 0 1999: 0 2000: 0 2001: 0 2002: 0 2003: 0 2004: 0 2005: 0 2006: 0 2007: 0 2008: 0 2009: 0 2010: 0 2011: 0 2012: 0 2013: 0 2014: 0 2015: 0 2016: 0 2017: 0 2018: 0 2019: 0 2020: 0 2021: 0 2022: 0 2023: 0 2024: 0 2025: 0 19731978198319881993199820032008201320182023
Per year, 1973 to 2025.

Every earthquake of magnitude 4 or more within 50 miles

Earthquakes of magnitude 4 or more within 50 miles
Jun 4, 19934.16.26.211 km N of Johnson, Minnesota
Jul 9, 19754.612.06.2Near Morris, Minnesota
  1. 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).
  2. 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

Other Storm Events types since 1996
Lightning401Sep 20, 2007

Costliest events since 1996

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. Jun 13, 2017Thunderstorm Wind$250,000
    National Weather Service narrative

    Several semi-trucks were blown off Interstate 94 near Ashby.

  8. 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.

  9. 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.

  10. 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.

  1. 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
Average monthly high and low temperature and precipitation, last 30 years, Alexandria Chandler Field 32°F 20° 3° 0.1 Jan 24° 6° 0.2 Feb 37° 20° 0.7 Mar 53° 33° 1.9 Apr 67° 46° 3.0 May 77° 57° 3.6 Jun 81° 62° 3.7 Jul 79° 59° 3.4 Aug 72° 51° 2.3 Sep 56° 38° 2.1 Oct 39° 24° 0.7 Nov 25° 10° 0.3 Dec Precipitation, inches
Average daily high and low by month, and average monthly precipitation, over the last 30 years.
Nights at or below freezing per year 1976: 175 1977: 147 1978: 165 1979: 182 1980: 170 1981: 149 1982: 169 1983: 157 1984: 173 1985: 167 1986: 158 1987: 156 1988: 183 1989: 187 1990: 177 1991: 174 1992: 175 1993: 180 1994: 164 1995: 141 1997: 180 1998: 153 1999: 161 2000: 168 2001: 165 2002: 190 190 2003: 164 2004: 165 2005: 163 2006: 166 2007: 155 2008: 173 2009: 161 2010: 141 2011: 166 2012: 148 2013: 185 2014: 165 2015: 146 2016: 143 2017: 157 2018: 171 2019: 170 2020: 184 2021: 162 2022: 174 2023: 169 2024: 148 2025: 161 19761986199720072017
Nights at or below freezing each complete year, last 50 years. Thirty-year average: 163.9.

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.

Federal disaster declarations
Jul 19, 2023FloodSevere Storms and FloodingMajor disasterDR-4722-MN
Aug 9, 2022Severe StormSevere Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disasterDR-4666-MN
Jul 8, 2022Severe StormSevere Storms, Straight-Line Winds, Tornadoes, and FloodingMajor disasterDR-4658-MN
Apr 7, 2020BiologicalCovid-19 PandemicMajor disasterDR-4531-MN
Mar 13, 2020BiologicalCovid-19EmergencyEM-3453-MN
Jun 12, 2019FloodSevere Winter Storm, Straight-Line Winds, and FloodingMajor disasterDR-4442-MN
Jul 25, 2013Severe StormSevere Storms, Straight-Line Winds, and FloodingMajor disasterDR-4131-MN
May 10, 2011FloodSevere Storms and FloodingMajor disasterDR-1982-MN
Apr 19, 2010FloodFloodingMajor disasterDR-1900-MN
Apr 9, 2009Severe StormSevere Storms and FloodingMajor disasterDR-1830-MN
Sep 13, 2005HurricaneHurricane Katrina EvacuationEmergencyEM-3242-MN
May 16, 2001FloodSevere Winter Storms, Flooding, and TornadoesMajor disasterDR-1370-MN
Apr 8, 1997FloodSevere Flooding, High Winds,Severe StormsMajor disasterDR-1175-MN
Jan 16, 1997Severe StormSevere Winter StormsMajor disasterDR-1158-MN
Jun 11, 1993Severe StormSevere Storms, Tornadoes & FloodingMajor disasterDR-993-MN
Jun 17, 1976DroughtDroughtEmergencyEM-3013-MN
Jul 17, 1975Severe StormSevere Storms, Tornadoes & FloodingMajor disasterDR-476-MN
Apr 18, 1969FloodFloodingMajor disasterDR-255-MN
Apr 11, 1965FloodFloodingMajor disasterDR-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.

Ranks
Tornadoes since 19503325 / 87876 / 3,143
Tornadoes rated F3/EF3 or stronger219 / 87866 / 3,143
Tropical cyclones within 50 mi0——
Hurricane-strength passes within 50 mi0——
Wildfire acres since 19841,01535 / 871,312 / 3,143
Flood insurance claims381 / 872,656 / 3,143
Flood insurance paid$62,00079 / 872,457 / 3,143
Disaster declarations1928 / 871,704 / 3,143
Flood events since 19962160 / 872,459 / 3,143
Hail and wind events since 199623951 / 871,634 / 3,143
Winter storm events since 199613229 / 87612 / 3,143
Reported damage since 1996$8.7 million53 / 872,063 / 3,143
River crests at major flood stage0——
High tide flooding days a year, last 10 years0.0——
Months in severe drought since 189510784 / 872,150 / 3,143
Medium or heavy smoke days a year, last 10 years33.918 / 8756 / 3,143
Earthquakes M4+ within 50 mi since 190024 / 871,151 / 3,143
Earthquakes M2.5+ in the county since 19730——

Neighbouring counties

Neighbouring counties
Douglas County260016
Otter Tail County8902,456109
Pope County3107257
Stevens County18002
Traverse County1801,195146
Wilkin County3503,014495

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.