River Falls

Population 17,916 (2025)

90 tornadoes have tracked within 25 miles of River Falls since 1950, 4 of them rated EF3 or F3 or stronger; the most recent was on May 15, 2025.

Hazard fingerprint for River Falls Tornado: 59th percentile. Tropical: 0th percentile. Wildfire: 0th percentile. Flood: 33th percentile. Hail & wind: 44th percentile. Heat: 50th percentile. Cold: 66th percentile. Winter: 73th 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 within 25 miles since 195090
  • Major flood years since 1978, Pierce County1

At a glance

Tornado paths within 25 miles, tropical cyclone tracks within 100 miles and wildfire perimeters within 25 miles of the city centre. Storm events, flood insurance claims and disaster declarations are for Pierce County. Earthquakes within 50 miles, volcanoes within 100 miles and smoke days are measured from the city centre; river and tide gauges, tsunami and landslide records and the drought index are for Pierce County.

Tornadoes since 1950, within 25 mi

90

4 rated F3/EF3 or stronger

Details

Flood insurance claims

126

Pierce County

$2.8 million paid since 1978

Details

Strongest tornado

F5

June 4, 1958, 33.7 mile path

Federal disaster declarations

13

Most recent: Covid-19 Pandemic, 2020

Details

Record high

109°F

July 15, 1936

Details

Record low

−47°F

February 16, 1936

Details

Snowiest season

85.4in

Winter of 2012-13

Costliest event since 1996

$20.0M

Hail, May 1, 2001

Details

Tornadoes

About one tornado a year since 1950, 4 of them rated F3/EF3 or stronger.

Strongest

June 4, 1958

F5, 33.7 mile path

880 yards wide; 21 killed along the whole path.

Most recent

Thursday, May 15, 2025

EF2, 3.9 mile path

Within the past year.

Tornadoes by decade, within 25 miles Doppler radar era² 1950s: 9 9 1960s: 8 8 1970s: 7 7 1980s: 11 11 1990s: 9 9 2000s: 22 22 2010s: 13 13 2020s: 11 11 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 0 M: 1 A: 1 M: 13 J: 18 J: 29 29 A: 18 S: 6 O: 2 N: 2 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes within 25 miles since 1950
May 15, 2025EF23.912000
Aug 29, 2024EF01.75000
Aug 29, 2024EF06.75000
Aug 29, 2024EF07.95000
May 21, 2024EF00.72500
Aug 27, 2022EF03.510000
Aug 27, 2022EF00.35000
May 9, 2022EF05.72500
Jul 28, 2021EF15.710000
Jul 18, 2020EF19.540000
Jul 18, 2020EF02.918000
Sep 20, 2018EF01.714000
Sep 20, 2018EF03.210000
Sep 20, 2018EF04.622000
Aug 27, 2018EF02.215000
Jul 12, 2017EF03.025000
Jun 28, 2017EF111.370000
Jul 5, 2016EF00.32500
Jul 7, 2014EF02.65000
Nov 10, 2012EF04.310000
Nov 10, 2012EF00.55000
Jul 14, 2010EF26.13000
Jul 14, 2010EF215.210000
Jul 14, 2010EF12.53000
Aug 19, 2009EF01.42500
Aug 19, 2009EF00.74000
Aug 19, 2009EF00.42500
Aug 19, 2009EF00.21000
Aug 19, 2009EF10.77500
Aug 19, 2009EF11.65000
Aug 8, 2009EF00.35000
Aug 8, 2009EF15.045000
Jul 10, 2008EF01.02000
Jul 10, 2008EF06.02500
May 25, 2008EF01.25000
May 25, 2008EF01.05000
Sep 20, 2007EF00.45000
Sep 23, 2006F00.12500
Jun 11, 2005F00.52500
Jun 11, 2005F18.05000
Jun 11, 2005F01.02500
Jun 11, 2005F00.32500
Sep 5, 2004F01.02500
May 1, 2001F00.12500
Jul 26, 2000F00.12000
Jul 7, 2000F10.13000
Aug 9, 1999F00.1000
Jun 5, 1999F00.55000
Mar 29, 1998F01.010000
Jul 6, 1996F00.15000
May 30, 1994F11.07300
Apr 26, 1994F25.01,30010
Jun 16, 1990F00.11000
Jun 16, 1990F00.11000
Jun 12, 1990F10.57310
Jul 27, 1987F17.08000
Jul 27, 1987F330.022000
Jul 6, 1987F00.12300
May 29, 1987F00.15000
May 13, 1987F00.22000
Aug 7, 1984F00.12700
Jul 15, 1982F11.016000
May 17, 1982F010.010000
Jul 24, 1981F00.32000
Jun 14, 1981F316.2600831
Jun 14, 1981F20.53300
Oct 3, 1979F22.510000
Jun 6, 1974F10.11700
Jul 18, 1971F238.510021
Jul 14, 1971F00.13000
Jun 7, 1971F00.15000
Jun 4, 1971F13.810000
Jul 18, 1970F01.01000
Jul 15, 1969F01.05000
Jul 15, 1969F12.06300
May 15, 1968F215.433330
Jul 22, 1967F29.220030
Jul 10, 1966F12.01020
Jul 15, 1965F11.06700
Jul 28, 1964F10.53300
Aug 2, 1963F16.66000
Oct 9, 1958F20.15000
Jun 22, 1958F00.11700
Jun 4, 1958F533.78807421
May 24, 1958F359.450120
Jul 22, 1955F12.020000
Aug 15, 1954F23.010000
Jun 29, 1954F26.21000
Jun 25, 1954F22.71,76000
May 10, 1953F2105.7100274
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond this area.
  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

No large wildfire has been mapped within 25 miles since satellite mapping began in 1984.

Smoke overhead

Smokiest year

2023: 82 days

Heavy smoke on 26 days in 2021, the most of any year.

Last 10 years

30.3 days a year

Medium or heavy smoke, 2016 to 2025.

2025

22 days

Medium or heavy smoke. 44 so far in 2026.

Days with medium or heavy smoke overhead, by year 2011: 5 2012: 25 2013: 17 2014: 16 2015: 25 2016: 8 2017: 16 2018: 26 2019: 13 2020: 22 2021: 51 2022: 20 2023: 82 82 2024: 43 2025: 22 201120122013201420152016201720182019202020212022202320242025
Days each year on which a satellite-traced plume of medium or heavy smoke covered the city 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

126 federal flood insurance claims since 1978, with $2.8 million paid.

Flood insurance figures are for Pierce County, the county that contains River Falls.

Federal flood insurance claims by year 1978: 5 1993: 7 1997: 24 2001: 32 32 2010: 8 2011: 9 2020: 6 19782011
Claims per year since 1978. Years with fewer than five claims are not shown.

Most claims in one year

2001: 32 claims

$645,000 paid.

2nd most

1997: 24 claims

$689,000 paid.

3rd most

2011: 9 claims

$386,000 paid.

Claims by ZIP code

Flood insurance claims by ZIP code
5401452$1.9 million
5402135$241,000
5472313$172,000
547679$516,000
547615$14,000

Flood events since 1996

  • Flash Flood11
  • Heavy Rain9
  • Flood6

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 109 of 1,581 months since 1895 (7%); the longest spell lasted 20 months.

The drought index is for Pierce County, the county that contains River Falls.

109

Months in severe drought or worse since 1895

51

Months in extreme drought

7%

Share of all months, severe or worse

Lowest reading

April 1911

−8.15, extreme drought

Longest severe spell

20 months

August 1936 to March 1938.

Latest month

September 2026

−2.46, moderate drought

Last severe month: October 2022.

Months in severe drought or worse, by year 1895: 0 1896: 0 1897: 0 1898: 3 1899: 0 1900: 0 1901: 0 1902: 0 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 0 1909: 0 1910: 8 1911: 5 1912: 0 1913: 0 1914: 0 1915: 0 1916: 0 1917: 0 1918: 0 1919: 0 1920: 0 1921: 0 1922: 0 1923: 0 1924: 0 1925: 0 1926: 0 1927: 0 1928: 0 1929: 0 1930: 0 1931: 4 1932: 1 1933: 2 1934: 8 1935: 0 1936: 5 1937: 12 12 1938: 3 1939: 0 1940: 0 1941: 0 1942: 0 1943: 0 1944: 1 1945: 1 1946: 0 1947: 0 1948: 4 1949: 9 1950: 2 1951: 0 1952: 0 1953: 0 1954: 0 1955: 0 1956: 0 1957: 0 1958: 1 1959: 7 1960: 0 1961: 0 1962: 0 1963: 3 1964: 8 1965: 0 1966: 0 1967: 0 1968: 2 1969: 0 1970: 0 1971: 0 1972: 0 1973: 0 1974: 1 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: 4 1989: 0 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: 1 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: 1 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

No earthquake of magnitude 2.5 or more is recorded within 50 miles of the city centre in the USGS catalogue, which begins in 1900.

Severe weather and other events

481 events in the National Weather Service record for Pierce County, 404 of them since 1996.

78

Hail reports, 1 inch or larger

13

Hail, 2 inches or larger

126

Damaging gusts, 58 mph+

110

Winter weather events since 1996

9

Heat events since 1996

16

Cold events since 1996

Largest hail

July 11, 1980

3.00 inches

Strongest measured or estimated gust

May 30, 1998

86 mph

More event types since 1996

Other Storm Events types since 1996
Lightning200Aug 9, 2005
Dense fog and smoke100Nov 19, 2007

Costliest events since 1996

  1. May 1, 2001Hail$20.0 million
    National Weather Service narrative

    Wind driven baseball size hail damaged houses and vehicles, and knocked out hundreds of windows on the south side of town. The local University was particularly hard hit, including a greenhouse that was destroyed.

  2. Jun 29, 1996Thunderstorm Wind$3.5 million
    National Weather Service narrative

    Barn and garages destroyed. Telephone poles down. Barn destroyed by fire. Estimated windspeed. Damage estimate for entire county.

  3. May 19, 1996Thunderstorm Wind$1.0 million
    National Weather Service narrative

    Structural damage to many buildings. Grocery store lost portion of roof. Local airport lost hangar roof and doors. Estimated wind speed. Damage estimate for entire county.

  4. Jun 11, 2001Thunderstorm Wind$1.0 million
    National Weather Service narrative

    Six barns leveled, numerous sheds and outbuildings down. Trees and power lines felled, some on houses. Damage figures are totals from all storms in Pierce County between 1558 and 1800.

  5. Apr 7, 2001High Wind, Pierce$1.0 million
    National Weather Service narrative

    A strong surface low pressure system moved out of the southwestern US and into north central Minnesota by the early afternoon on the 7th. This system produced numerous wind gusts in the 55 to 60 mph range across portions of west central Wisconsin. A gust of 61 mph was measured at the Hager City airport. Some damages of note include a mobile home blown over on its side in Rock Elm (Pierce county), roof damage to a school in Prescott (Pierce county), signs ripped loose, siding damaged on a business, and a semi trailer blown off interstate 94 in Roberts (St. Croix County).

  6. Jul 14, 2010Tornado$800,000
    National Weather Service narrative

    Several sheds and outbuildings were destroyed, as were a couple of barns. Hundreds of trees were snapped. The tornado was accompanied by strong rear flank downdraft winds that also knocked down numerous trees.

  7. Jul 14, 2010Tornado$500,000
    National Weather Service narrative

    Several barns and sheds were destroyed, and structural damage was noted at some homes. Many trees were broken or snapped. This tornado was accompanied by strong rear flank downdraft winds, which also knocked down trees and damaged some sheds.

  8. May 30, 1998Thunderstorm Wind$300,000
  9. Jul 28, 2021Thunderstorm Wind$250,000
    National Weather Service narrative

    A storm survey determined a downburst hit the west side of Spring Valley. Numerous trees, sheds and power lines were blown down. A school gymnasium roof was damaged and a lot of the debris landed on houses and vehicles. A local resident stated that the severe winds persisted for several minutes.

  10. Jul 5, 2016Thunderstorm Wind$200,000
    National Weather Service narrative

    A mesocyclone originated in Pierce County and caused widespread downburst damage across a 1.5 mile wide area. It knocked down many hundreds of trees, and partially removed the roof off of one house. The mesocyclone continued into Pepin County, where it continued to produce wind damage and then a tornado (see separate entries for Pepin County).

  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 River Falls, 0.8 miles from the city centre, with records from 1918.

All-time high
109°FJul 15, 1936
All-time low
−47°FFeb 16, 1936
Warmest night
82°FJun 8, 1987
Coldest day
−18°F2 times, most recently Jan 24, 1936
Wettest day
7.37 inJun 1, 1965
Snowiest day
18.0 inMar 13, 2006
Hottest year
1987mean 49.6°F
Coldest year
1950mean 39.9°F
Wettest year
194243.86 in
Driest year
197615.73 in
Snowiest season
85.4 in2012-13
Average monthly high and low temperature and precipitation, last 30 years, River Falls 32°F 22° 5° 0.8 Jan 27° 8° 0.8 Feb 41° 20° 1.6 Mar 55° 32° 2.9 Apr 68° 44° 4.0 May 77° 54° 4.9 Jun 82° 59° 4.0 Jul 79° 57° 4.4 Aug 72° 50° 3.0 Sep 58° 37° 2.5 Oct 42° 25° 1.4 Nov 28° 12° 1.2 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: 174 1977: 146 1978: 161 1979: 163 1980: 163 1981: 150 1982: 159 1983: 156 1984: 160 1985: 156 1986: 155 1987: 152 1988: 171 1989: 171 1990: 159 1991: 162 1992: 169 1993: 157 1995: 167 1996: 172 1997: 188 188 1998: 150 1999: 167 2000: 164 2001: 157 2002: 186 2003: 161 2004: 163 2005: 166 2006: 165 2007: 157 2008: 174 2009: 167 2010: 162 2011: 178 2012: 160 2013: 187 2014: 181 2015: 153 2016: 146 2017: 156 2018: 188 2019: 183 2020: 184 2021: 172 2022: 181 2023: 164 2024: 145 2025: 155 19761986199720072017
Nights at or below freezing each complete year, last 50 years. Thirty-year average: 167.7.
Snowfall by winter 1976: 32.4 in 1977: 36.1 in 1978: 53.3 in 1979: 48.6 in 1980: 21.9 in 1981: 69.2 in 1982: 65.7 in 1983: 77.4 in 1984: 56.0 in 1985: 57.5 in 1986: 14.1 in 1987: 35.2 in 1988: 63.1 in 1989: 30.9 in 1990: 33.2 in 1991: 58.3 in 1992: 42.5 in 1993: 44.6 in 1994: 28.3 in 1995: 35.5 in 1996: 64.8 in 1997: 48.0 in 1998: 46.9 in 1999: 35.6 in 2000: 41.1 in 2002: 30.1 in 2004: 28.8 in 2006: 20.7 in 2007: 21.3 in 2008: 40.6 in 2009: 26.9 in 2010: 63.2 in 2011: 21.6 in 2012: 85.4 in 85.4 2013: 67.7 in 2014: 31.4 in 2015: 40.0 in 2016: 33.5 in 2017: 71.1 in 2018: 78.5 in 2019: 48.7 in 2020: 44.6 in 2021: 43.5 in 2022: 73.1 in 2023: 33.2 in 2024: 27.1 in 2025: 49.6 in 19761986199620092019
Total snowfall each winter (July to June), last 50 winters.

Median first snow

November 8

Earliest: September 24, 1985

Median last snow

April 11

Latest: May 12, 1943

0 of 96 winters had no measurable snow.

Station River Falls (USC00477226), 940 ft elevation, 0.8 miles from the city centre. Daily records from 1918 to October 21, 2026; 98.2% 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

13 since 1953. The most recent: Covid-19 Pandemic, April 4, 2020.

Declarations for Pierce County.

Federal disaster declarations
Apr 4, 2020BiologicalCovid-19 PandemicMajor disasterDR-4520-WI
Mar 13, 2020BiologicalCovid-19EmergencyEM-3454-WI
Sep 13, 2005HurricaneHurricane Katrina EvacuationEmergencyEM-3249-WI
May 11, 2001FloodFlooding, Severe Storms and TornadoesMajor disasterDR-1369-WI
Jul 24, 1998Severe StormSevere Storms,Straigh Line Winds, Tornadoes,Rain,and FloodiMajor disasterDR-1236-WI
Jul 2, 1993Severe StormSevere Storms, Tornadoes & FloodingMajor disasterDR-994-WI
Sep 30, 1992FloodSevere Storms & FloodingMajor disasterDR-964-WI
Jul 24, 1980FloodSevere Storms & FloodingMajor disasterDR-626-WI
Jul 7, 1978Severe StormSevere Storms, Flooding, Hail & TornadoesMajor disasterDR-559-WI
Jun 17, 1976DroughtDroughtEmergencyEM-3014-WI
Sep 15, 1975Severe StormHeavy Rains, Tornadoes & Flash FloodsMajor disasterDR-482-WI
May 1, 1969FloodFloodingMajor disasterDR-260-WI
Apr 21, 1965TornadoTornadoes, Severe Storms & FloodingMajor disasterDR-192-WI

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.

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 USC00477226.
  • 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.