Houston County
Population 18,400 (2025) 552 sq mi
Property owners in Houston County have filed 78 federal flood insurance claims since 1978, 34th most of 87 counties in Minnesota.
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 195014
- Major flood years since 19781
At a glance
The record for Houston County in eight numbers. Each links to its section below.
Tornadoes since 1950
14
74th of 87 in Minnesota
Fewer than the typical Minnesota county, which has had 27
DetailsStrongest tornado
F3
May 5, 1965, 65.2 mile path
Snowiest season
78.7in
Winter of 1961-62
Tornadoes
About one every 5.4 years since 1950, one of them rated F3/EF3 or stronger.
Strongest
May 5, 1965
F3, 65.2 mile path
100 yards wide.
Most recent
Wednesday, June 25, 2025
EF0, 3.6 mile path
Within the past year.
Every recorded tornado
| Jun 25, 2025 | EF0 | 3.6 | 0 | 0 |
| Jun 25, 2025 | EF0 | 1.1 | 0 | 0 |
| Jun 25, 2025 | EF1 | 6.5 | 0 | 0 |
| Jul 23, 2022 | EF0 | 4.2 | 0 | 0 |
| Dec 15, 2021 | EF1 | 7.3 | 0 | 0 |
| May 22, 2011 | EF2 | 13.8 | 0 | 0 |
| Jun 7, 2008 | EF0 | 0.1 | 0 | 0 |
| Aug 23, 1997 | F0 | 0.5 | 0 | 0 |
| Apr 8, 1991 | F1 | 3.0 | 0 | 0 |
| May 29, 1978 | F1 | 0.3 | 0 | 0 |
| Jun 27, 1977 | F1 | 0.2 | 0 | 0 |
| Aug 25, 1965 | F1 | 0.1 | 0 | 0 |
| May 5, 1965 | F3 | 65.2 | 7 | 0 |
| Jun 10, 1960 | F1 | 0.1 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Houston 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: 73 days
Heavy smoke on 23 days in 2021, the most of any year.
Last 10 years
28.2 days a year
Medium or heavy smoke, 2016 to 2025.
2025
21 days
Medium or heavy smoke. 42 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
78 federal flood insurance claims since 1978, with $1.1 million paid.
Most claims in one year
2001: 28 claims
$528,000 paid.
2nd most
1993: 10 claims
$107,000 paid.
3rd most
2007: 7 claims
$289,000 paid.
Claims by ZIP code
| 55947 | 60 | $775,000 |
| 55941 | 9 | $298,000 |
| 55943 | 5 | $29,000 |
Flood events since 1996
- Flash Flood23
- Flood23
- Heavy Rain20
2 deaths recorded in flood events since 1996.
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.
River crests
Most severe crest
October 1, 2019
Root River near Mound Prairie, 680.70 ft
15.70 feet above the 665.0 ft flood stage; major flooding by today’s categories.
Most recent moderate or major crest
July 3, 2026
South Fork Root River near Houston, 13.73 ft
Moderate flooding.
River gauges
| Crooked Creek at Freeburg | 13.0 | 20.26 ft | 7 |
| Mississippi River at Brownsville | 635.0 | 640.20 ft | 0 |
| Root River (MN) at Houston | 15.0 | 19.28 ft | 3 |
| Root River near Mound Prairie | 665.0 | 680.70 ft | 1 |
| South Fork Root River near Houston | 10.0 | 14.90 ft | 3 |
- Crests are the highest and the recent crests the National Weather Service lists for each river gauge in the county that has a flood stage, not every flood. Flood categories use each gauge's current flood stages; crests from before levees, dams or channel changes may not be comparable. Crests measured on an old datum are left out of the rankings.
NOAA National Water Prediction Service gauge records, retrieved October 30, 2026.
Drought
In severe drought or worse for 117 of 1,581 months since 1895 (7%); the longest spell lasted 15 months.
117
Months in severe drought or worse since 1895
53
Months in extreme drought
7%
Share of all months, severe or worse
20
Drought reports to the Weather Service since 1996
Lowest reading
April 1911
−6.90, extreme drought
Longest severe spell
15 months
September 1939 to November 1940.
Latest month
September 2026
+1.87, slightly wet
Last severe month: March 2024.
- 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
No earthquake of magnitude 2.5 or more is recorded within 50 miles of the county in the USGS catalogue, which begins in 1900.
Mapped landslides
216
Landslides mapped, probable or better
3
With a recorded date
2
Source inventories
Mapped by USGS MN (213), NASA (3).
- 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
423 events in the National Weather Service record, 394 of them since 1996.
49
Hail reports, 1 inch or larger
6
Hail, 2 inches or larger
73
Damaging gusts, 58 mph+
99
Winter weather events since 1996
14
Heat events since 1996
18
Cold events since 1996
Largest hail
April 10, 2011
3.00 inches
Strongest measured or estimated gust
June 27, 1998
94 mph
More event types since 1996
| Lightning | 6 | 0 |
| Dense fog and smoke | 1 | 0 |
Costliest events since 1996
- Aug 18, 2007Flash Flood$27.0 million
National Weather Service narrative
At least 50 mudslides were reported across the county with four state highways and eight county roads closed. At one point 20 roads were closed across the county. Some homes collapsed or were carried away by mudslides. Numerous railroad tracks and bridges washed out. There were numerous reports of injuries. Hardest hit communities included Houston, Hokah, La Crescent and Brownsville. A 25 foot earthen dam near Hokah, which was built in 1921, collapsed. This caused significant damage to a portion of the town, including the main park and an automobile dealership. First calls of flooding began around 9:30 p.m. Saturday August 18 to dispatch center, with flooding problems becoming…
- Jun 22, 2013Flash Flood$7.1 million
National Weather Service narrative
Very heavy rain caused widespread flash flooding across a good portion of Houston County. Roads around the town of Houston became covered with water and impassable. Rapidly rising water along Riceford Creek caused a campground to be evacuated. A mudslide occurred just outside of Spring Grove. Numerous other roads around the county sustained damage, including County Highway 27 which had a complete section washed out. State Highway 16 east of Houston, State Highway 76 between Caledonia and Houston and County Highway 43 along with numerous other county roads were closed along with at least 20 township roads. In the western part of the county, one vehicle was swept off a road and the…
- Jun 8, 2008Flood$6.5 million
National Weather Service narrative
Widespread flooding forced the closure of virtually all roads across the county. Several civil emergency messages were sent by request of county officials for evacuations in mainly the southern half of the county. An estimated 9300 acres of corn and 5400 acres of beans were lost. There were massive mudslides in some parts of the county, just like in August 2007. Debris backup was common against area bridge supports.
- Aug 18, 2007Flash Flood$6.0 million
National Weather Service narrative
Tremendous flash flooding and mudslides covered many highways in the area, including Highway 76 between Money Creek and Houston. Highway bridges were completely blown out and sections of roads were quickly eroded away. Other mudslides were reported on county highways 9, 13 and 26.
- Aug 18, 2007Flash Flood$3.0 million
National Weather Service narrative
A man was killed when he attempted to cross flood waters with two others in his vehicle. The car was washed away on County Road 6 near Pine Creek. His two female companions were rescued but the victim's legs were pinned under a part of the car and rescue workers could not save him. Several rescue workers also became caught in flood waters which swamped at least two rescue boats. This all occurred during the early morning hours of Sunday, August 19th in darkness.||Highway 26 from La Crescent to the Iowa border, Highway 16 from La Crescent to Hokah, and Highway 61 north of La Crescent were all closed by flood waters and damage.
- Jun 7, 2008Flash Flood$2.5 million
National Weather Service narrative
Very heavy rain led to flash flooding through much of the county. A rainfall total of 7.18 inches was measured 3 miles southwest of Reno. The bridge over Clear Creek was reported damaged and unsafe for use. In addition, highway 26 was closed due to mudslides. County Highways 5, 23, 31 and 249 were closed due to high water and washouts.
- Aug 4, 2014Lightning$1.5 million
National Weather Service narrative
A lightning strike hit a transformer in La Crescent and the resulting damage also took out a nearby substation. Around 3,400 customers were without power until the next day.
- May 1, 2001Flood, Houston$1.4 million
National Weather Service narrative
The Mississippi River crested in April 2001 at levels second only to the all-time flood of record, which occurred in April 1965. In spite of the river slowly receding, water levels remained above flood stage, resulting in continued flooding until the middle of May. Numerous homes and businesses were damaged due to the flood waters. This resulted in Wabasha, Winona and Houston County receiving federal disaster relief funds.
- Jun 1, 2000Flash Flood$1.2 million
National Weather Service narrative
3 to 6 inches of rain fell during the night of May 31 into the morning hours of June 1, causing widespread flash flooding. Hardest hit was Spring Valley (Fillmore County), where residents of 25 homes had to be evacuated and people in 3 homes were rescued by boat. The flood was the worst in Spring Valley since 1942. Near Eitzen (Houston County), flood waters washed out a 20 foot wide, 15 foot deep section of county highway 27. Between Dexter and Austin (Mower County), Interstate 90 had to be temporarily closed due to 2 to 3 feet of water across the road. Total property damage was estimated at 4.3 million dollars, with an additional estimate of 1.2 million dollars in damage to…
- May 18, 1996Hail$1.0 million
National Weather Service narrative
Baseball size hail damaged crops and injured farmers in the area.
- 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 La Crosse Municipal Airport, 14.4 miles from the county’s population centre, with records from 1938.
- All-time high
- 108°FJul 13, 1995
- All-time low
- −37°FJan 30, 1951
- Warmest night
- 81°F3 times, most recently Jun 30, 2026
- Coldest day
- −18°FDec 23, 1983
- Wettest day
- 5.59 inAug 7, 2021
- Snowiest day
- 14.4 inDec 3, 1990
- Hottest year
- 1998mean 51.9°F
- Coldest year
- 1950mean 42.4°F
- Wettest year
- 201644.76 in
- Driest year
- 194816.74 in
- Snowiest season
- 78.7 in1961-62
Median first snow
November 13
Earliest: October 1, 1999
Median last snow
April 4
Latest: May 7, 1960
0 of 85 winters had no measurable snow.
Station La Crosse Municipal Airport (USW00014920), 650 ft elevation, 14.4 miles from the population centre. Daily records from 1938 to October 26, 2026; 100.0% 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 |
| Jul 19, 2023 | Flood | DR-4722-MN |
| Apr 7, 2020 | Biological | DR-4531-MN |
| Mar 13, 2020 | Biological | EM-3453-MN |
| Jun 12, 2019 | Flood | DR-4442-MN |
| Nov 2, 2016 | Flood | DR-4290-MN |
| Jul 25, 2013 | Severe Storm | DR-4131-MN |
| Jul 2, 2010 | Tornado | DR-1921-MN |
| Jun 25, 2008 | Severe Storm | DR-1772-MN |
| Aug 23, 2007 | Severe Storm | DR-1717-MN |
| Sep 13, 2005 | Hurricane | EM-3242-MN |
| May 16, 2001 | Flood | DR-1370-MN |
| Jun 27, 2000 | Severe Storm | DR-1333-MN |
| Jun 23, 1998 | Tornado | DR-1225-MN |
| Apr 8, 1997 | Flood | DR-1175-MN |
| Jun 11, 1993 | Severe Storm | DR-993-MN |
| Jul 8, 1978 | Severe Storm | DR-560-MN |
| Jun 17, 1976 | Drought | EM-3013-MN |
| Jul 13, 1974 | Flood | DR-446-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 Houston County stands among 87 counties in Minnesota and 3,143 in the United States.
| Tornadoes since 1950 | 14 | 74 / 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 | 78 | 34 / 87 |
| Flood insurance paid | $1.1 million | 30 / 87 |
| Disaster declarations | 21 | 15 / 87 |
| Flood events since 1996 | 66 | 10 / 87 |
| Hail and wind events since 1996 | 166 | 78 / 87 |
| Winter storm events since 1996 | 99 | 75 / 87 |
| Reported damage since 1996 | $66.3 million | 14 / 87 |
| River crests at major flood stage | 14 | 13 / 87 |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 117 | 77 / 87 |
| Medium or heavy smoke days a year, last 10 years | 28.2 | 87 / 87 |
| Earthquakes M4+ within 50 mi since 1900 | 0 | — |
| Earthquakes M2.5+ in the county since 1973 | 0 | — |
Neighbouring counties
| Allamakee County IA | 13 | 0 |
| Fillmore County | 28 | 0 |
| La Crosse County WI | 20 | 0 |
| Vernon County WI | 25 | 0 |
| Winneshiek County IA | 24 | 0 |
| Winona County | 25 | 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 USW00014920.
- 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.