Waseca County

Population 18,688 (2025) 423 sq mi

Waseca County has recorded 28 tornadoes since 1950, 35th most of 87 counties in Minnesota; the most recent was on August 5, 2024.

Hazard fingerprint for Waseca County Tornado: 81th percentile. Tropical: 0th percentile. Wildfire: 26th percentile. Flood: 58th percentile. Hail & wind: 50th percentile. Heat: 56th percentile. Cold: 75th percentile. Winter: 76th 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 195028
  • Wildfire burn scars since 19841

At a glance

The record for Waseca County in eight numbers. Each links to its section below.

Tornadoes since 1950

28

35th of 87 in Minnesota

About as many as the typical Minnesota county

Details

Flood insurance claims

9

73rd of 87 in Minnesota

$111,000 paid since 1993

Details

Acres burned since 1984

1,496

28th of 87 in Minnesota

1 large fire; the largest was Snake Trail, 2024

Details

Strongest tornado

F4

April 30, 1967, 20.1 mile path

Federal disaster declarations

14

Most recent: Severe Storms and Flooding, 2024

Details

Record high

106°F

Reached 2 times, most recently July 14, 1936

Details

Record low

−37°F

January 5, 1924

Details

Snowiest season

105.5in

Winter of 1983-84

Tornadoes

About one every 2.7 years since 1950, 2 of them rated F3/EF3 or stronger.

Strongest

April 30, 1967

F4, 20.1 mile path

267 yards wide; 6 killed along the whole path.

Most recent

Monday, August 5, 2024

EF1, 1.4 mile path

2 years ago.

Tornadoes by decade Doppler radar era² 1950s: 0 1960s: 5 5 1970s: 6 6 1980s: 4 4 1990s: 1 1 2000s: 2 2 2010s: 6 6 2020s: 4 4 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 0 M: 1 A: 4 M: 1 J: 7 7 J: 4 A: 6 S: 5 O: 0 N: 0 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes in Waseca County since 1950
Aug 5, 2024EF11.45000
Aug 5, 2024EF16.115000
Aug 28, 2021EF00.42500
Aug 28, 2021EF00.72500
Sep 20, 2018EF111.135000
Sep 20, 2018EF17.233000
Sep 20, 2018EF00.72000
Sep 20, 2018EF110.930000
Sep 20, 2018EF17.144010
Mar 19, 2012EF06.510000
Jun 17, 2009EF02.25000
Jul 14, 2003F00.15000
Aug 7, 1994F11.02000
Jul 14, 1987F00.11000
Jun 7, 1984F11.05000
Jun 4, 1984F11.520000
Jun 13, 1983F00.55000
Jun 28, 1979F12.36000
Aug 1, 1978F10.13310
Jul 23, 1973F10.33000
Jul 23, 1973F00.310000
Jun 18, 1973F01.55000
Apr 29, 1970F220.12700
Apr 30, 1967F420.1267226
Apr 30, 1967F318.4100232
Apr 30, 1967F29.26700
Jun 9, 1963F29.315000
May 14, 1961F25.188010
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Waseca County: 6.
  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

1,496 acres burned in 1 large fire since 1984, equal to 0.5% of the land.

Largest

March 3, 2024

Snake Trail Fire, 1,496 acres

1,496 acres inside Waseca County.

Most recent

March 3, 2024

Snake Trail Fire

1,496 acres in total.

Acres burned since 1984, cumulative 2024: 1,496 1,496 acres 198519901995200020052010201520202025
Running total of acres burned inside the county (line) and each year’s acres (bars).

Every large fire

Large wildfires since 1984
Snake Trail20241,4961,496
  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: 78 days

Heavy smoke on 28 days in 2021, the most of any year.

Last 10 years

30.6 days a year

Medium or heavy smoke, 2016 to 2025.

2025

22 days

Medium or heavy smoke. 45 so far in 2026.

Days with medium or heavy smoke overhead, by year 2011: 9 2012: 27 2013: 21 2014: 13 2015: 24 2016: 6 2017: 14 2018: 26 2019: 12 2020: 23 2021: 57 2022: 25 2023: 78 78 2024: 43 2025: 22 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

9 federal flood insurance claims since 1993, with $111,000 paid.

Federal flood insurance claims by year
Claims per year since 1993. Years with fewer than five claims are not shown.

Claims by ZIP code

Flood insurance claims by ZIP code
560725$20,000

Flood events since 1996

  • Flash Flood18
  • Heavy Rain14
  • Flood11

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 163 of 1,581 months since 1895 (10%); the longest spell lasted 41 months.

163

Months in severe drought or worse since 1895

96

Months in extreme drought

10%

Share of all months, severe or worse

Lowest reading

August 1934

−7.84, extreme drought

Longest severe spell

41 months

January 1921 to May 1924.

Latest month

September 2026

+2.27, moderately wet

Last severe month: January 2013.

Months in severe drought or worse, by year 1895: 0 1896: 0 1897: 0 1898: 0 1899: 0 1900: 1 1901: 0 1902: 0 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 0 1909: 0 1910: 8 1911: 7 1912: 0 1913: 0 1914: 0 1915: 0 1916: 0 1917: 0 1918: 0 1919: 0 1920: 0 1921: 12 12 1922: 12 1923: 12 1924: 5 1925: 0 1926: 0 1927: 0 1928: 0 1929: 0 1930: 0 1931: 0 1932: 0 1933: 5 1934: 10 1935: 0 1936: 4 1937: 11 1938: 4 1939: 4 1940: 5 1941: 0 1942: 0 1943: 0 1944: 0 1945: 0 1946: 0 1947: 0 1948: 0 1949: 2 1950: 4 1951: 0 1952: 0 1953: 0 1954: 0 1955: 4 1956: 5 1957: 4 1958: 3 1959: 7 1960: 0 1961: 0 1962: 0 1963: 0 1964: 0 1965: 0 1966: 0 1967: 0 1968: 0 1969: 0 1970: 0 1971: 0 1972: 0 1973: 0 1974: 0 1975: 0 1976: 5 1977: 5 1978: 0 1979: 0 1980: 0 1981: 0 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 1 1988: 6 1989: 10 1990: 2 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: 0 2005: 0 2006: 0 2007: 0 2008: 0 2009: 0 2010: 0 2011: 0 2012: 4 2013: 1 2014: 0 2015: 0 2016: 0 2017: 0 2018: 0 2019: 0 2020: 0 2021: 0 2022: 0 2023: 0 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 and landslides

1 earthquake of magnitude 2.5 or more within 50 miles since 2017; none reached magnitude 4.

0

Magnitude 2.5+ inside the county since 1973

0

Magnitude 3+ within 50 miles since 1973

0

Magnitude 4+ within 50 miles since 1900

0

Magnitude 5+ within 50 miles since 1900

Largest within 50 miles

April 25, 2017

Magnitude 2.8

Near Mankato, Minnesota; 11.7 miles away, 0.0 miles deep.

  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.

Mapped landslides

27

Landslides mapped, probable or better

2

With a recorded date

1

Source inventory

Mapped by USGS MN (27).

  1. Landslides mapped in the USGS compilation of landslide inventories across the United States (version 3.0, 2025), rated probable or better. The compilation joins inventories made by federal and state agencies for different purposes and areas, so the number mapped in a county reflects how closely it has been surveyed as much as how often its slopes fail. An area with few records may simply not have been mapped. Deaths are as recorded in the inventories; a slide listed in two inventories is counted once.

USGS Landslide Inventories across the United States, version 3.0, retrieved October 27, 2026.

Severe weather and other events

492 events in the National Weather Service record, 402 of them since 1996.

73

Hail reports, 1 inch or larger

5

Hail, 2 inches or larger

99

Damaging gusts, 58 mph+

120

Winter weather events since 1996

11

Heat events since 1996

25

Cold events since 1996

Largest hail

April 14, 1977

2.50 inches

Strongest measured or estimated gust

May 19, 1996

99 mph

More event types since 1996

Other Storm Events types since 1996
Lightning200Jun 29, 2005
Dense fog and smoke100Mar 30, 2001

Costliest events since 1996

  1. May 19, 1996Thunderstorm Wind$4.0 million
    National Weather Service narrative

    Semi-trailer trucks and airplanes flipped over. Trailer home destroyed. Roof partially torn off high school. Damage estimate for entire county.

  2. Sep 23, 2010Flood$1.0 million
    National Weather Service narrative

    Numerous roads were closed due to excessive rainfall that fell on September 22nd and 23th. The major areal flooding didn't recede until late Saturday when most of the small streams and creeks had crested and only mainstem rivers remained flooded. In New Richland, Minnesota, Highway 30 and Highway 13 were closed, making it impossible for the roughly 1,000 residents to get out of town.

  3. Aug 31, 2010Thunderstorm Wind$250,000
    National Weather Service narrative

    Two large hog barns were blown down northeast of Waldorf, Minnesota.

  4. May 11, 2022Thunderstorm Wind$250,000
    National Weather Service narrative

    A large machine shed was blown apart and other outbuildings had some roof damage. Several dozen trees were also toppled as the downburst moved northeast through the small community of Otisco and then to a farm northeast of Otisco.

  5. Mar 19, 2012Tornado$100,000
    National Weather Service narrative

    An EF-0 tornado touched down just south of Elysian Lake Road, just south of 412th Avenue, in northern Waseca County. The tornado tracked north for approximately 2.8 miles while paralleling the eastern shore of Elysian Lake and Elysian Lake Road. It crossed Elysian Lake near 427th Ave, before moving into southern Le Sueur County. ||Damage was primarily associated with uprooted trees and roof damage. The worst damage occurred to a farmstead which had a metal storage shed collapse along Elysian Lake Road. ||Based on trees uprooted and structural damage to a metal storage shed, winds were estimated around 80 mph.

  6. Jun 2, 2020Thunderstorm Wind$100,000
    National Weather Service narrative

    A large church steeple was blown over, landing in the parking lot.

  7. May 8, 2014Thunderstorm Wind$100,000
    National Weather Service narrative

    Many large trees and power poles were snapped off from south to north across the city of Waseca. Also, a large grain bin was destroyed north of Waseca.

  8. Apr 12, 2022Thunderstorm Wind$50,000
    National Weather Service narrative

    Reports of sporadic wind damage occurred from near the Waldorf area, northeast to rural areas of Janesville, hitting a few outbuildings. One broken power pole was reported north of Waseca.

  9. Aug 21, 2003Thunderstorm Wind$50,000
    National Weather Service narrative

    Roof partially blown off home. Barn blown down. Numerous trees and large branches down.

  10. Apr 10, 2019Winter Storm, Waseca$25,000
    National Weather Service narrative

    Several waves of precipitation occurred across the county with heavy snow at the start, with a mixture of sleet, rain and snow during the overnight hours before transitioning to mainly light snow, drizzle, and freezing drizzle Wednesday, and Thursday. Snowfall totals averaged 6 to 8 inches across the county. ||The other significant weather element was the combination of high winds and ice coated trees and power lines. This led to widespread downed tree limbs, and power poles.

  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 Waseca S Rsch & Outreach Center, 1.4 miles from the county’s population centre, with records from 1915.

All-time high
106°F2 times, most recently Jul 14, 1936
All-time low
−37°FJan 5, 1924
Warmest night
79°F2 times, most recently Jul 19, 2011
Coldest day
−21°FDec 24, 1983
Wettest day
7.64 inSep 22, 2016
Snowiest day
15.0 inMar 24, 1966
Hottest year
1931mean 50.8°F
Coldest year
1917mean 39.9°F
Wettest year
201656.24 in
Driest year
197617.43 in
Snowiest season
105.5 in1983-84
Average monthly high and low temperature and precipitation, last 30 years, Waseca S Rsch & Outreach Center 32°F 23° 5° 1.1 Jan 27° 8° 1.2 Feb 40° 22° 2.3 Mar 56° 35° 3.1 Apr 69° 48° 4.4 May 79° 59° 5.7 Jun 82° 62° 4.7 Jul 80° 59° 4.8 Aug 74° 52° 3.7 Sep 60° 38° 2.5 Oct 43° 25° 1.5 Nov 28° 12° 1.5 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: 181 1977: 152 1978: 166 1979: 175 1980: 182 1981: 158 1982: 163 1983: 164 1984: 169 1985: 165 1986: 158 1987: 132 1988: 176 1989: 174 1990: 172 1991: 164 1992: 169 1993: 177 1994: 157 1995: 165 1996: 148 1997: 177 1998: 132 1999: 154 2000: 149 2001: 153 2002: 184 2003: 164 2004: 150 2005: 153 2006: 161 2007: 158 2008: 173 2009: 157 2010: 155 2011: 163 2012: 146 2013: 185 2014: 163 2015: 144 2016: 141 2017: 146 2018: 186 186 2019: 177 2020: 178 2021: 159 2022: 180 2023: 166 2024: 151 2025: 149 19761986199620062016
Nights at or below freezing each complete year, last 50 years. Thirty-year average: 160.1.
Snowfall by winter 1976: 35.9 in 1977: 58.3 in 1978: 82.9 in 1979: 51.9 in 1980: 25.4 in 1981: 68.6 in 1982: 77.4 in 1983: 105.5 in 105.5 1984: 73.3 in 1985: 56.2 in 1986: 13.8 in 1988: 67.5 in 1989: 21.9 in 1990: 40.6 in 1991: 72.5 in 1992: 66.0 in 1993: 60.0 in 1994: 29.5 in 1996: 72.4 in 1997: 48.7 in 1998: 61.7 in 1999: 46.0 in 2000: 75.0 in 2001: 22.4 in 2002: 27.7 in 2003: 43.7 in 2005: 43.1 in 2006: 49.7 in 2007: 40.2 in 2008: 45.8 in 2009: 51.3 in 2010: 79.8 in 2011: 21.4 in 2012: 70.9 in 2013: 66.6 in 2014: 44.6 in 2015: 37.2 in 2016: 42.0 in 2017: 73.8 in 2018: 72.6 in 2019: 48.7 in 2020: 43.0 in 2021: 28.5 in 2022: 72.0 in 2023: 15.5 in 2024: 20.8 in 2025: 41.4 in 19761986199820092019
Total snowfall each winter (July to June), last 50 winters.

Median first snow

November 11

Earliest: October 2, 1999

Median last snow

April 8

Latest: May 4, 2013

0 of 68 winters had no measurable snow.

Station Waseca S Rsch & Outreach Center (USC00218692), 1,147 ft elevation, 1.4 miles from the population centre. Daily records from 1915 to October 21, 2026; 99.7% 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

14 since 1953. The most recent: Severe Storms and Flooding, June 28, 2024.

Federal disaster declarations
Jun 28, 2024FloodSevere Storms and FloodingMajor disasterDR-4797-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
Nov 2, 2016FloodSevere Storms and FloodingMajor disasterDR-4290-MN
Jul 21, 2014FloodSevere Storms, Straight-Line Winds, Flooding, Landslides, and MudslidesMajor disasterDR-4182-MN
Oct 13, 2010Severe StormSevere Storms and FloodingMajor disasterDR-1941-MN
Sep 13, 2005HurricaneHurricane Katrina EvacuationEmergencyEM-3242-MN
Jan 16, 1997Severe StormSevere Winter StormsMajor disasterDR-1158-MN
Jan 7, 1997Severe StormSevere Ice StormMajor disasterDR-1151-MN
Jun 1, 1996FloodFlooding and Severe StormsMajor disasterDR-1116-MN
Jun 11, 1993Severe StormSevere Storms, Tornadoes & FloodingMajor disasterDR-993-MN
Dec 26, 1991Severe Ice StormIce StormMajor disasterDR-929-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 Waseca County stands among 87 counties in Minnesota and 3,143 in the United States.

Ranks
Tornadoes since 19502835 / 871,087 / 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 19841,49628 / 871,226 / 3,143
Flood insurance claims973 / 872,374 / 3,143
Flood insurance paid$111,00071 / 872,333 / 3,143
Disaster declarations1464 / 872,433 / 3,143
Flood events since 19964329 / 871,623 / 3,143
Hail and wind events since 199617971 / 872,134 / 3,143
Winter storm events since 199612050 / 87717 / 3,143
Reported damage since 1996$6.0 million58 / 872,277 / 3,143
River crests at major flood stage0——
High tide flooding days a year, last 10 years0.0——
Months in severe drought since 189516332 / 87677 / 3,143
Medium or heavy smoke days a year, last 10 years30.667 / 87178 / 3,143
Earthquakes M4+ within 50 mi since 19000——
Earthquakes M2.5+ in the county since 19730——

Neighbouring counties

Neighbouring counties
Blue Earth County430092
Faribault County410012
Freeborn County690045
Le Sueur County260087
Rice County43059878
Steele County280090

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 USC00218692.
  • 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.
  • Landslides USGS Landslide Inventories across the United States, version 3.0 (2025).
  • 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.