Lafayette County

Population 17,478 (2025) 634 sq mi

Lafayette County has recorded 38 tornadoes since 1950, 14th most of 72 counties in Wisconsin; the most recent was on June 22, 2024.

Hazard fingerprint for Lafayette County Tornado: 76th percentile. Tropical: 0th percentile. Wildfire: 0th percentile. Flood: 52th percentile. Hail & wind: 44th percentile. Heat: 82th percentile. Cold: 87th percentile. Winter: 90th 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 195038
  • Major flood years since 19781

At a glance

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

Tornadoes since 1950

38

14th of 72 in Wisconsin

52% more than the typical Wisconsin county

Details

Flood insurance claims

61

31st of 72 in Wisconsin

$563,000 paid since 1990

Details

Strongest tornado

F3

April 16, 1967, 27.8 mile path

Federal disaster declarations

14

Most recent: Covid-19 Pandemic, 2020

Details

Record high

99°F

Reached 8 times, most recently July 6, 2012

Details

Record low

−32°F

January 31, 2019

Details

Snowiest season

72.0in

Winter of 2007-08

Costliest event since 1996

$2.4M

Hail, April 13, 2006

Details

Tornadoes

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

Strongest

April 16, 1967

F3, 27.8 mile path

500 yards wide.

Most recent

Saturday, June 22, 2024

EF2, 6.9 mile path

2 years ago.

Tornadoes by decade Doppler radar era² 1950s: 1 1 1960s: 6 6 1970s: 6 6 1980s: 5 5 1990s: 4 4 2000s: 7 7 2010s: 5 5 2020s: 4 4 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 0 M: 2 A: 1 M: 5 J: 17 17 J: 6 A: 1 S: 6 O: 0 N: 0 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes in Lafayette County since 1950
Jun 22, 2024EF26.950000
Jun 22, 2024EF05.67500
Mar 31, 2023EF16.67500
Mar 31, 2023EF15.57500
Jun 26, 2018EF01.84700
Jun 26, 2018EF00.54000
Jun 16, 2014EF11.25000
Jun 16, 2014EF14.320000
Jun 21, 2010EF12.27500
Jul 27, 2009EF00.12500
Jul 24, 2009EF04.25000
Jul 24, 2009EF03.47500
Jun 1, 2007EF00.23000
Jun 1, 2007EF00.12000
May 10, 2003F17.820010
Jun 1, 2000F10.57000
May 15, 1998F220.0150110
Jul 4, 1994F10.510000
Jun 26, 1993F00.12300
Jun 19, 1993F00.12300
May 8, 1988F19.010000
May 8, 1988F316.012300
Aug 16, 1987F10.15000
Jul 10, 1984F00.12700
Jun 7, 1984F211.04000
Sep 28, 1972F10.15000
Sep 20, 1972F11.010000
Jul 25, 1971F11.010000
Jun 1, 1971F123.610000
Sep 9, 1970F214.37000
Sep 9, 1970F215.720000
Jun 29, 1969F210.420000
Jun 4, 1969F224.420000
Jun 11, 1967F10.55000
Apr 16, 1967F327.850000
Sep 2, 1963F170.71000
Sep 2, 1963F29.910000
May 31, 1958F21.31000
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Lafayette 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

No large wildfire has been mapped here since satellite mapping began in 1984.

Smoke overhead

Smokiest year

2023: 73 days

Heavy smoke on 22 days in 2021, the most of any year.

Last 10 years

26.3 days a year

Medium or heavy smoke, 2016 to 2025.

2025

21 days

Medium or heavy smoke. 40 so far in 2026.

Days with medium or heavy smoke overhead, by year 2011: 9 2012: 18 2013: 16 2014: 14 2015: 20 2016: 5 2017: 10 2018: 15 2019: 15 2020: 25 2021: 45 2022: 19 2023: 73 73 2024: 35 2025: 21 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

61 federal flood insurance claims since 1990, with $563,000 paid.

Federal flood insurance claims by year 1990: 18 1993: 28 28 1990
Claims per year since 1990. Years with fewer than five claims are not shown.

Most claims in one year

1993: 28 claims

$146,000 paid.

2nd most

1990: 18 claims

$323,000 paid.

Claims by ZIP code

Flood insurance claims by ZIP code
5353054$521,000

Flood events since 1996

  • Flood28
  • Flash Flood20
  • Heavy Rain4

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

July 16, 1950

Pecatonica River at Darlington, 20.71 ft

7.21 feet above the 13.5 ft flood stage; major flooding by today’s categories.

Most recent moderate or major crest

October 3, 2019

Pecatonica River at Darlington, 15.84 ft

Moderate flooding.

Highest river crests above flood stage
Jul 16, 1950Pecatonica River at Darlington20.71+7.21Major
Jun 29, 1990Pecatonica River at Darlington19.80+6.30Major
Jun 30, 1969Pecatonica River at Darlington19.16+5.66Major
Jul 6, 1993Pecatonica River near Blanchardville16.54+5.54Major
Mar 15, 2019Pecatonica River near Blanchardville16.34+5.34Major
Feb 21, 2018Pecatonica River near Blanchardville16.02+5.02Major
Jul 6, 1993Pecatonica River at Darlington18.22+4.72Major
Jun 29, 1969Galena River at Buncombe19.57+4.57Major
Feb 28, 1948Pecatonica River at Darlington17.65+4.15Major
Mar 14, 2019Pecatonica River at Darlington17.60+4.10Major
Feb 21, 1937Pecatonica River at Darlington17.60+4.10Major
Feb 20, 1953Pecatonica River at Darlington17.47+3.97Major
Jan 6, 1946Pecatonica River at Darlington17.18+3.68Major
Apr 1, 1959Pecatonica River at Darlington17.16+3.66Major
Jul 8, 1951Pecatonica River at Darlington16.61+3.11Major
Jan 25, 1967Pecatonica River at Darlington16.47+2.97Major
Mar 30, 1960Pecatonica River at Darlington16.06+2.56Major
Feb 9, 1966Pecatonica River at Darlington16.00+2.50Major
Feb 28, 1948Pecatonica River near Blanchardville15.74+4.74Moderate
Jul 17, 1950Pecatonica River near Blanchardville15.73+4.73Moderate
Apr 1, 1959Pecatonica River near Blanchardville15.61+4.61Moderate
Feb 20, 1953Pecatonica River near Blanchardville15.25+4.25Moderate
Jun 9, 2008Pecatonica River near Blanchardville15.15+4.15Moderate
Mar 2, 1965Pecatonica River near Blanchardville14.96+3.96Moderate
Jul 21, 2017Pecatonica River near Blanchardville14.89+3.89Moderate

River gauges

River gauges and their highest listed crests
Galena River at Buncombe15.019.57 ftJun 29, 19691
Pecatonica River at Darlington13.520.71 ftJul 16, 195014
Pecatonica River near Blanchardville11.016.54 ftJul 6, 19933
  1. 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 134 of 1,581 months since 1895 (8%); the longest spell lasted 21 months.

134

Months in severe drought or worse since 1895

68

Months in extreme drought

8%

Share of all months, severe or worse

17

Drought reports to the Weather Service since 1996

Lowest reading

March 1940

−6.14, extreme drought

Longest severe spell

21 months

June 1988 to February 1990.

Latest month

September 2026

+1.68, slightly wet

Last severe month: February 2022.

Months in severe drought or worse, by year 1895: 5 1896: 3 1897: 2 1898: 0 1899: 0 1900: 0 1901: 5 1902: 4 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 0 1909: 0 1910: 6 1911: 7 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: 1 1930: 6 1931: 8 1932: 0 1933: 0 1934: 5 1935: 0 1936: 1 1937: 0 1938: 0 1939: 4 1940: 6 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: 2 1955: 3 1956: 10 1957: 3 1958: 0 1959: 0 1960: 0 1961: 0 1962: 0 1963: 3 1964: 7 1965: 0 1966: 0 1967: 0 1968: 0 1969: 0 1970: 0 1971: 0 1972: 0 1973: 0 1974: 0 1975: 1 1976: 6 1977: 5 1978: 0 1979: 0 1980: 0 1981: 0 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 0 1988: 7 1989: 12 12 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: 6 2013: 0 2014: 0 2015: 0 2016: 0 2017: 0 2018: 0 2019: 0 2020: 0 2021: 2 2022: 2 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 county in the USGS catalogue, which begins in 1900.

Severe weather and other events

773 events in the National Weather Service record, 701 of them since 1996.

60

Hail reports, 1 inch or larger

17

Hail, 2 inches or larger

114

Damaging gusts, 58 mph+

207

Winter weather events since 1996

46

Heat events since 1996

39

Cold events since 1996

Largest hail

March 27, 1991

2.75 inches

Strongest measured or estimated gust

May 21, 2024

100 mph

More event types since 1996

Other Storm Events types since 1996
Lightning700Jun 21, 2007
Dense fog and smoke6800Dec 3, 2013

Costliest events since 1996

  1. Apr 13, 2006Hail$2.4 million
    National Weather Service narrative

    Wild weather occurred over parts of south-central and southeast Wisconsin on April 13, 2005. Wisconsin's most-costly hailstorm pummeled a large swath from around Mineral Point (Iowa Co.) to north of Milwaukee (Milwaukee Co.), while hurricane-force thunderstorm winds raked parts of Fond du Lac and Sheboygan Counties. Here's what happened: scattered supercells developed in eastern Iowa during the late afternoon hours of April 13th and pushed east-northeastward through southern Wisconsin and northern Illinois during the evening. Three main hailstorms affected southern Wisconsin. The first hailstorm left a swath of hail and hail damage from southern Iowa County (around 1945CST),…

  2. Apr 13, 2006Hail$2.4 million
    National Weather Service narrative

    Wild weather occurred over parts of south-central and southeast Wisconsin on April 13, 2005. Wisconsin's most-costly hailstorm pummeled a large swath from around Mineral Point (Iowa Co.) to north of Milwaukee (Milwaukee Co.), while hurricane-force thunderstorm winds raked parts of Fond du Lac and Sheboygan Counties. Here's what happened: scattered supercells developed in eastern Iowa during the late afternoon hours of April 13th and pushed east-northeastward through southern Wisconsin and northern Illinois during the evening. Three main hailstorms affected southern Wisconsin. The first hailstorm left a swath of hail and hail damage from southern Iowa County (around 1945CST),…

  3. May 15, 1998Tornado$1.7 million
    National Weather Service narrative

    A supercell thunderstorm, after dropping a couple tornadoes in northeast Iowa, eventually moved northeast into Lafayette county, creating another tornado. This tornado touched down just southwest of Benton and hopped/skipped northeast for 20 miles. It caused moderate to severe damage to 40 different farms and their outbuildings, and homes. Numerous power lines were downed. Eleven people were injured: 2 children near Cuba city, 3 children southwest of Truman, and 6 adults in a vehicle on Highway 81 south of Benton. Several farm fields sustained damage.

  4. Jun 16, 2014Tornado$1.5 million
    National Weather Service narrative

    A narrow path of EF1 tornado damage. Numerous trees and power poles down. A large calf barn was nearly completely destroyed, killing two calves. Several pole barns were completely destroyed. Minor roof damage to a couple homes. A garage blown off the foundation.

  5. Mar 31, 2023Tornado$1.0 million
    National Weather Service narrative

    A number of farm buildings had substantial damage to them, particularly a large farm operation along County Road G where an empty grain bin was destroyed and a large shed lost it's I beam and the roof collapsed inward. A row of 13 power poles were snapped due to the wind.

  6. Jun 22, 2024Tornado$1.0 million
    National Weather Service narrative

    Strong tornado developed west of Argyle and tracked to the north of it, hitting multiple barns and a church along it's path.

  7. May 31, 1998Thunderstorm Wind$875,000
    National Weather Service narrative

    During the early morning hours of Sunday, May 31st, southcentral and southeast Wisconsin experienced an unprecedented, widespread downburst wind event known as a "derecho." Incredibly powerful, hurricane-force straight-line winds, with peak gusts of 100 to 128 mph tore through 12 counties in this part of the state, while another 8 counties had peak gusts of 60 to 80 mph. Residents noted that the strongest winds only lasted a minute or two, but gusty winds hung on for 15 to 30 minutes. Meteorologically, a solid squall line developed in southern Minnesota and gathered strength as it raced east with a translational speed of 50 to 60 mph across southcentral and southeast Wisconsin.…

  8. Jun 1, 2004Flood, Lafayette$500,000
    National Weather Service narrative

    Scattered to widespread heavy rains across south-central and southeast Wisconsin during the period of June 9-12, 2004 kept many rivers and streams at or above flood stage for a good part, or most of the month. Monthly rainfall totals generally ranged from 4 to 7 inches across south-central and southeast Wisconsin, with some scattered spots in Sauk, Columbia, Dodge, Walworth, Racine, and Kenosha Counties picking up 7 to 9.5 inches, or 50 to 100% above normal. In some cases, stretches of some rivers actually went above flood stage in May, 2004. Refer to flood and flash flood events in May, 2004, for additional information. During June, 2004, the high water levels kept much of the…

  9. Aug 18, 2005Thunderstorm Wind$500,000
    National Weather Service narrative

    Widespread tree damage, trees on homes, and barns damaged, were reported within a 5 mile corridor along Highway 11.

  10. Jul 24, 2009Hail$500,000
    National Weather Service narrative

    A 5-mile wide hail swath damaged crops (corn, soy beans, wheat, and alfalfa), vehicles (windows and dents), and at least 25 homes (windows, siding, and roofs). This hail swath merged with a another, later, hail swath, with the merger southeast of Shullsburg. Some fields southeast of Shullsburg were totally stripped by the hail stones.||Newspaper accounts indicated that the two hail swaths resulted in damage to 20,000 acres of corn and 10,000 acres of soybeans in Lafayette County. Using an avarge of 135 bushes of corn per acre with a price of $3.45 per bushels yields a corn loss of $9.315 M. Using an average of 38 bushels of soybeans per acre, and a price of $9.25 per bushel yields…

  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 Stockton 3NNE, 19.8 miles from the county’s population centre, with records from 1943.

All-time high
99°F8 times, most recently Jul 6, 2012
All-time low
−32°FJan 31, 2019
Warmest night
79°FAug 24, 2023
Coldest day
−14°F3 times, most recently Jan 30, 2019
Wettest day
6.84 inJul 23, 2010
Snowiest day
15.0 inFeb 1, 2011
Hottest year
1998mean 51.3°F
Coldest year
1985mean 43.4°F
Wettest year
201954.81 in
Driest year
197619.12 in
Snowiest season
72.0 in2007-08
Average monthly high and low temperature and precipitation, last 30 years, Stockton 3NNE 32°F 28° 12° 1.3 Jan 32° 15° 1.6 Feb 46° 27° 2.4 Mar 59° 37° 4.0 Apr 71° 49° 4.1 May 80° 59° 5.2 Jun 82° 62° 4.8 Jul 80° 59° 4.3 Aug 75° 52° 3.9 Sep 62° 41° 3.1 Oct 47° 29° 2.0 Nov 33° 18° 1.8 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: 162 1977: 130 1979: 160 1980: 166 166 1981: 154 1982: 151 1983: 156 1984: 157 1985: 145 1986: 150 1987: 149 1988: 157 1989: 159 1991: 147 1992: 150 1993: 156 1994: 137 1995: 156 1996: 160 1997: 150 1998: 114 1999: 133 2000: 135 2001: 127 2002: 144 2003: 133 2004: 126 2005: 133 2006: 132 2007: 133 2008: 140 2009: 134 2010: 136 2011: 144 2012: 134 2013: 152 2014: 153 2015: 129 2016: 121 2017: 124 2018: 166 2019: 154 2020: 155 2021: 135 2022: 155 2023: 153 2024: 140 2025: 144 19761987199820082018
Nights at or below freezing each complete year, last 50 years. Thirty-year average: 139.6.
Snowfall by winter 1978: 53.8 in 1980: 17.4 in 1982: 20.6 in 1983: 30.3 in 1984: 31.8 in 1986: 27.8 in 1987: 24.5 in 1988: 20.8 in 1990: 24.1 in 1991: 12.3 in 1992: 36.4 in 1994: 32.3 in 1995: 37.5 in 1996: 53.8 in 1997: 32.7 in 1998: 37.2 in 1999: 38.3 in 2000: 37.8 in 2001: 22.8 in 2002: 23.9 in 2003: 23.4 in 2004: 28.3 in 2005: 33.3 in 2006: 34.2 in 2007: 72.0 in 72.0 2008: 53.6 in 2009: 38.4 in 2010: 59.1 in 2011: 27.3 in 2012: 46.7 in 2013: 52.3 in 2014: 36.9 in 2015: 28.5 in 2016: 22.9 in 2017: 32.1 in 2018: 46.5 in 2019: 37.5 in 2020: 49.0 in 2021: 26.5 in 2022: 49.5 in 2023: 33.9 in 2024: 17.9 in 2025: 34.0 in 19781992200320132023
Total snowfall each winter (July to June), last 50 winters.

Median first snow

November 19

Earliest: October 12, 2006

Median last snow

March 29

Latest: May 11, 1966

0 of 66 winters had no measurable snow.

Station Stockton 3NNE (USC00118293), 970 ft elevation, 19.8 miles from the population centre. Daily records from 1943 to October 27, 2026; 96.7% 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: Covid-19 Pandemic, April 4, 2020.

Federal disaster declarations
Apr 4, 2020BiologicalCovid-19 PandemicMajor disasterDR-4520-WI
Mar 13, 2020BiologicalCovid-19EmergencyEM-3454-WI
Oct 7, 2017Severe StormSevere Storms, Straight-Line Winds, Flooding, Landslides, and MudMajor disasterDR-4343-WI
Apr 5, 2011SnowstormSevere Winter Storm and SnowstormMajor disasterDR-1966-WI
Jun 14, 2008Severe StormSevere Storms, Tornadoes, and FloodingMajor disasterDR-1768-WI
Sep 13, 2005HurricaneHurricane Katrina EvacuationEmergencyEM-3249-WI
Jun 18, 2004Severe StormSevere Storms and FloodingMajor disasterDR-1526-WI
Jun 24, 2000Severe StormSevere Storms, Tornadoes, and FloodingMajor disasterDR-1332-WI
Jul 2, 1993Severe StormSevere Storms, Tornadoes & FloodingMajor disasterDR-994-WI
Jul 13, 1990Severe StormSevere Storms, Tornadoes & FloodingMajor disasterDR-874-WI
Jul 7, 1978Severe StormSevere Storms, Flooding, Hail & TornadoesMajor disasterDR-559-WI
Jun 17, 1976DroughtDroughtEmergencyEM-3014-WI
Mar 23, 1976FloodSevere Storms, Icing, Wind & FloodingMajor disasterDR-496-WI
Jul 11, 1969FloodSevere Storms & FloodingMajor disasterDR-264-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.

How this compares

Where Lafayette County stands among 72 counties in Wisconsin and 3,143 in the United States.

Ranks
Tornadoes since 19503814 / 72701 / 3,143
Tornadoes rated F3/EF3 or stronger223 / 72866 / 3,143
Tropical cyclones within 50 mi0——
Hurricane-strength passes within 50 mi0——
Wildfire acres since 19840——
Flood insurance claims6131 / 721,538 / 3,143
Flood insurance paid$563,00035 / 721,727 / 3,143
Disaster declarations1420 / 722,433 / 3,143
Flood events since 19965220 / 721,361 / 3,143
Hail and wind events since 199624943 / 721,572 / 3,143
Winter storm events since 199620720 / 72312 / 3,143
Reported damage since 1996$19.1 million37 / 721,524 / 3,143
River crests at major flood stage184 / 72261 / 3,143
High tide flooding days a year, last 10 years0.0——
Months in severe drought since 189513417 / 721,351 / 3,143
Medium or heavy smoke days a year, last 10 years26.363 / 72499 / 3,143
Earthquakes M4+ within 50 mi since 19000——
Earthquakes M2.5+ in the county since 19730——

Neighbouring counties

Neighbouring counties
Grant County620085
Green County35055236
Iowa County310025
Jo Daviess County IL2100343
Stephenson County IL2100193

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 USC00118293.
  • 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.