Nobles County
Population 22,338 (2025) 715 sq mi
Nobles County has recorded 44 tornadoes since 1950, 8th most of 87 counties in Minnesota; the most recent was on April 28, 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 195044
At a glance
The record for Nobles County in eight numbers. Each links to its section below.
Strongest tornado
F5
June 16, 1992, 16.0 mile path
Snowiest season
78.8in
Winter of 1983-84
Tornadoes
About one every 1.7 years since 1950, one of them rated F3/EF3 or stronger.
Strongest
June 16, 1992
F5, 16.0 mile path
280 yards wide; 1 killed along the whole path.
Most recent
Monday, April 28, 2025
EFU, 1.5 mile path
Within the past year.
Every recorded tornado
| Apr 28, 2025 | EFU | 1.5 | 0 | 0 |
| Sep 23, 2023 | EFU | 0.0 | 0 | 0 |
| Aug 13, 2023 | EF0 | 1.2 | 0 | 0 |
| May 30, 2022 | EF0 | 0.9 | 0 | 0 |
| Aug 14, 2020 | EF0 | 0.0 | 0 | 0 |
| Aug 17, 2019 | EF0 | 4.0 | 0 | 0 |
| Aug 18, 2017 | EF1 | 1.6 | 0 | 0 |
| Aug 18, 2017 | EF1 | 1.3 | 0 | 0 |
| Aug 18, 2017 | EF1 | 3.0 | 0 | 0 |
| May 4, 2012 | EF0 | 0.5 | 0 | 0 |
| May 4, 2012 | EF0 | 1.2 | 0 | 0 |
| May 4, 2012 | EF0 | 1.0 | 0 | 0 |
| Jul 6, 2008 | EF0 | 0.3 | 0 | 0 |
| Jun 11, 2008 | EF1 | 3.8 | 0 | 0 |
| Jul 31, 2004 | F0 | 0.5 | 0 | 0 |
| Jul 31, 2004 | F1 | 0.5 | 0 | 0 |
| May 9, 2004 | F0 | 0.5 | 0 | 0 |
| Apr 18, 2004 | F1 | 0.5 | 0 | 0 |
| Jun 12, 2001 | F0 | 0.1 | 0 | 0 |
| Jul 25, 2000 | F0 | 0.1 | 0 | 0 |
| Jul 25, 2000 | F0 | 0.1 | 0 | 0 |
| Jul 25, 2000 | F0 | 0.1 | 0 | 0 |
| Jul 25, 2000 | F0 | 0.1 | 0 | 0 |
| Jul 25, 2000 | F2 | 3.0 | 0 | 0 |
| Mar 29, 1998 | F1 | 0.1 | 0 | 0 |
| Mar 29, 1998 | F2 | 0.1 | 0 | 0 |
| Mar 29, 1998 | F0 | 0.1 | 0 | 0 |
| Mar 29, 1998 | F0 | 0.1 | 0 | 0 |
| Mar 29, 1998 | F2 | 0.1 | 0 | 0 |
| Oct 29, 1996 | F0 | 1.0 | 0 | 0 |
| Aug 7, 1994 | F1 | 6.0 | 0 | 0 |
| Jun 16, 1992 | F5 | 16.0 | 35 | 1 |
| Apr 26, 1986 | F2 | 18.5 | 4 | 1 |
| Oct 5, 1982 | F0 | 1.5 | 0 | 0 |
| Jul 29, 1979 | F0 | 0.1 | 0 | 0 |
| May 17, 1979 | F0 | 2.0 | 0 | 0 |
| May 27, 1977 | F2 | 10.3 | 0 | 0 |
| May 11, 1975 | F0 | 0.1 | 0 | 0 |
| May 28, 1968 | F1 | 0.1 | 0 | 0 |
| Jul 9, 1966 | F1 | 2.3 | 0 | 0 |
| Jul 2, 1966 | F1 | 0.1 | 0 | 0 |
| Aug 10, 1964 | F1 | 0.1 | 0 | 0 |
| May 10, 1956 | F2 | 6.5 | 0 | 0 |
| Apr 27, 1955 | F1 | 0.1 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Nobles 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
No large wildfire has been mapped here since satellite mapping began in 1984.
Smoke overhead
Smokiest year
2023: 68 days
Heavy smoke on 32 days in 2021, the most of any year.
Last 10 years
30.3 days a year
Medium or heavy smoke, 2016 to 2025.
2025
25 days
Medium or heavy smoke. 43 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
83 federal flood insurance claims since 1978, with $209,000 paid.
Most claims in one year
2010: 18 claims
$46,000 paid.
2nd most
1993: 15 claims
$25,000 paid.
3rd most
2018: 8 claims
$15,000 paid.
Claims by ZIP code
| 56187 | 79 | $201,000 |
Flood events since 1996
- Flash Flood24
- Flood10
- Heavy Rain9
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 164 of 1,581 months since 1895 (10%); the longest spell lasted 25 months.
164
Months in severe drought or worse since 1895
72
Months in extreme drought
10%
Share of all months, severe or worse
31
Drought reports to the Weather Service since 1996
Lowest reading
July 1911
−7.70, extreme drought
Longest severe spell
25 months
June 1988 to June 1990.
Latest month
September 2026
−1.08, mild drought
Last severe month: May 2025.
- 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 2.5 or more within 50 miles since 1982; none reached magnitude 4.
0
Magnitude 2.5+ inside the county since 1973
1
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
July 11, 1982
Magnitude 3.6
5 km W of Egan, South Dakota; 35.0 miles away, 3.1 miles deep.
Most recent, magnitude 3 or more
July 11, 1982
Magnitude 3.6
5 km W of Egan, South Dakota; 35.0 miles away.
- 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
814 events in the National Weather Service record, 723 of them since 1996.
133
Hail reports, 1 inch or larger
16
Hail, 2 inches or larger
123
Damaging gusts, 58 mph+
212
Winter weather events since 1996
19
Heat events since 1996
40
Cold events since 1996
Largest hail
July 28, 1986
6.00 inches
Strongest measured or estimated gust
June 16, 1962
100 mph
More event types since 1996
| Lightning | 3 | 0 |
Costliest events since 1996
- Apr 9, 2013Winter Storm, Nobles$25.0 million
National Weather Service narrative
An extended period of precipitation began with freezing rain quickly producing heavy ice accumulations, ranging up to a half inch. The precipitation then changed to sleet and then snow, with sleet and snow accumulations reaching 10 inches near Worthington. Many branches, limbs, whole trees, and power lines were downed by the weight of ice and accompanying wind. Both urban areas and rural electric cooperatives suffered major power line damage, with the rural cooperatives alone reporting 16 million dollars in damages. Trees and tree debris blocked many roads, and damaged several vehicles and homes. Major power outages were reported, affecting thousands of people. The winter…
- Jun 21, 2024Flood$3.6 million
National Weather Service narrative
Rainfall amounts across Nobles County from June 20-22 ranged from 4 to 10 inches. This rainfall resulted in widespread overland flooding across the county. Okabena Lake in Worthington also overflowed its banks, flooding the downtown area and residential properties surrounding the lake. ||During peak flooding, there were 3 swift water rescues and a reported 6 stalled vehicles. Three apartment buildings and one home in Worthington needed to be evacuated, impacting 35 individuals. County-wide, 350 individuals reported flood damage. Of these, 5 residences were declared destroyed, 55 with major damage, and another 250 with minor damage. ||There were 150 locations that reported flood…
- Nov 14, 1996Ice Storm, Nobles$2.5 million
National Weather Service narrative
An ice storm consisting of several periods of freezing rain caused widespread damage to power lines and poles, and to trees. Power lines snapped, cable wires were ripped down, and tree debris littered and blocked some roads. Thousands lost power, some for 5 days. Travel was curtailed by icy surfaces and there were numerous accidents, although no serious injuries were reported. The ice storm was described as the worst in 40 years in the Worthington area. Many small farm structures were damaged. A 600 foot radio tower in Worthington was toppled. Schools and business were forced to close. Damage continued after the ice storm ended, including some damage occurring when ice melted…
- Aug 3, 2004Thunderstorm Wind$1.0 million
National Weather Service narrative
Thunderstorm winds blew parts of the roofs off a junior high school building and an apartment building, and overturned a semi truck. The winds caused widespread tree damage, including several large trees uprooted or blown down. Tree debris blocked several roads, and made the golf course at the country club unusable. Power lines were blown down and other lines were knocked down by falling tree debris, causing power outages. Tree debris also damaged several vehicles and buildings. At least one garage was destroyed by the winds. Several signs, including large billboards, were blown down. The winds damaged crops, especially corn, but the amount of crop damage could not be determined.
- Aug 3, 2004Thunderstorm Wind$1.0 million
National Weather Service narrative
Thunderstorm winds destroyed a grain elevator and several grain bins. The winds also damaged roofs and siding on several homes and businesses. There was widespread tree damage including several trees blown down. Homes, businesses, and vehicles sustained additional damage from falling or flying tree debris, and debris blocked several roads. Power lines were blown down, resulting in power outages. The winds caused severe crop damage in the area, but the amount of crop damage could not be determined.
- Apr 10, 2019Ice Storm, Nobles$877,000
National Weather Service narrative
Ice accumulated to one-half to three quarters of an inch. As winds increased during the night of April 10 into early April 11 with gusts reaching 45 to 50 mph at times, power poles and transmission lines bore the brunt of the worst conditions. Several hundred power poles were snapped by the weight of the ice accumulation and stress of the high winds, with more than 75 miles of power line down. Many roads were closed, including U.S. Highway 59, due to power structures across roadways. Damage costs are rough estimates due to utility costs.
- Jun 19, 1996Hail$500,000
National Weather Service narrative
Hail damaged buildings and cars, broke windows, and damaged crops.
- Apr 18, 2004Tornado$500,000
National Weather Service narrative
A tornado destroyed a barn and blew the walls of a garage off its foundation. The garage was attached to a house which received no apparent damage.
- Aug 18, 2017Tornado$500,000
National Weather Service narrative
EF-1 tornado hit a hog confinement building before the storm crossed Interstate 90. 20 to 30 hogs were killed.
- Mar 29, 1998Tornado$400,000
National Weather Service narrative
A tornado destroyed buildings...trees in shelter belts...and numerous pieces of farm equipment...and killed two cattle.
- 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 Worthington 2 Nne, 4.2 miles from the county’s population centre, with records from 1971.
- All-time high
- 104°FAug 1, 1988
- All-time low
- −31°FJan 2, 2010
- Warmest night
- 79°F2 times, most recently Jul 19, 2011
- Coldest day
- −18°FJan 15, 1972
- Wettest day
- 5.61 inSep 23, 2010
- Snowiest day
- 14.0 inMar 2, 2007
- Hottest year
- 2012mean 48.4°F
- Coldest year
- 1979mean 40.2°F
- Wettest year
- 201943.61 in
- Driest year
- 197616.55 in
- Snowiest season
- 78.8 in1983-84
Median first snow
November 7
Earliest: October 2, 1999
Median last snow
April 5
Latest: May 1, 1984
0 of 40 winters had no measurable snow.
Station Worthington 2 Nne (USC00219170), 1,568 ft elevation, 4.2 miles from the population centre. Daily records from 1971 to October 27, 2026; 98.4% 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
21 since 1953. The most recent: Severe Storms and Flooding, June 28, 2024.
| Jun 28, 2024 | Flood | DR-4797-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 |
| Sep 5, 2018 | Flood | DR-4390-MN |
| Jul 21, 2014 | Flood | DR-4182-MN |
| May 3, 2013 | Severe Storm | DR-4113-MN |
| Oct 13, 2010 | Severe Storm | DR-1941-MN |
| Jun 25, 2008 | Severe Storm | DR-1772-MN |
| Sep 13, 2005 | Hurricane | EM-3242-MN |
| May 16, 2001 | Flood | DR-1370-MN |
| Apr 1, 1998 | Tornado | DR-1212-MN |
| Jan 16, 1997 | Severe Storm | DR-1158-MN |
| Jan 7, 1997 | Severe Storm | DR-1151-MN |
| Jun 11, 1993 | Severe Storm | DR-993-MN |
| Jun 26, 1992 | Severe Storm | DR-946-MN |
| Jun 17, 1976 | Drought | EM-3013-MN |
| Aug 5, 1969 | Flood | DR-268-MN |
| Apr 18, 1969 | Flood | DR-255-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 Nobles County stands among 87 counties in Minnesota and 3,143 in the United States.
| Tornadoes since 1950 | 44 | 8 / 87 |
| Tornadoes rated F3/EF3 or stronger | 1 | 30 / 87 |
| Tropical cyclones within 50 mi | 0 | — |
| Hurricane-strength passes within 50 mi | 0 | — |
| Wildfire acres since 1984 | 0 | — |
| Flood insurance claims | 83 | 33 / 87 |
| Flood insurance paid | $209,000 | 56 / 87 |
| Disaster declarations | 21 | 15 / 87 |
| Flood events since 1996 | 43 | 29 / 87 |
| Hail and wind events since 1996 | 340 | 24 / 87 |
| Winter storm events since 1996 | 212 | 8 / 87 |
| Reported damage since 1996 | $38.4 million | 27 / 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 | 164 | 30 / 87 |
| Medium or heavy smoke days a year, last 10 years | 30.3 | 75 / 87 |
| Earthquakes M4+ within 50 mi since 1900 | 0 | — |
| Earthquakes M2.5+ in the county since 1973 | 0 | — |
Neighbouring counties
| Cottonwood County | 26 | 0 |
| Jackson County | 22 | 0 |
| Lyon County IA | 45 | 0 |
| Murray County | 34 | 0 |
| Osceola County IA | 31 | 0 |
| Rock County | 15 | 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 USC00219170.
- 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.