Calumet County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Calumet County: 1.
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.

Smoke overhead

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.

Claims by ZIP code

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

River gauges

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.

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.

More event types since 1996

Costliest events since 1996

1. May 12, 2000Hail$32.2 million
   National Weather Service narrative

   During the mid and late morning of May 12, a high precipitation supercell thunderstorm developed in west-central Wisconsin and tracked east across the state for over two and a half hours. The storm produced a prolific path of large hail, a brief tornado, and a significant wet microburst across central and east central Wisconsin. The storm was one of the most damaging thunderstorms in Wisconsin history, producing well over $100 million in damage.The thunderstorm developed north of a warm front, which was located across the Wisconsin/Illinois border. The setup was favorable for what is known as "elevated" convection; that is, the source of the instability was aloft, and not…

2. May 6, 2002Hail$4.9 million
   National Weather Service narrative

   A low pressure system over southeast Minnesota moved east across central Wisconsin during the late afternoon and early evening hours. Severe thunderstorms developed in the unstable air near the intersection of a warm front and a cold front. There were numerous reports of large hail and some funnel clouds.Large hail damaged vehicles and buildings, stripping the siding from some houses, in Appleton (Calumet co.) and Menasha (Winnebago co.). Hail up to golf ball size covered the ground in Appleton.One weak tornado was on the ground for 4 miles and moved across Lake Winneconne. Another briefly touched down north of Oshkosh. No damage was reported with either tornado.

3. Apr 13, 2006Thunderstorm Wind$1.0 million
   National Weather Service narrative

   Severe thunderstorms formed over west central Wisconsin and moved east across central and east central Wisconsin during the late evening and overnight hours. As the storms moved east they dropped quite a bit of penny to quarter size hail, before producing three microbursts in Calumet county that caused significant damage.The most severe of three microbursts created a damage path from 4.5 miles southwest of Hilbert to 3.5 miles south of Hilbert. The straight-line winds associated with this microburst reached an estimated 95 to 100 mph, damaging or destroying three barns and numerous agricultural buildings. One of the destroyed barns was made of 12 inch by 12 inch timbers. This…

4. May 31, 1998Thunderstorm Wind$500,000
   National Weather Service narrative

   A series of thunderstorms roared across the area late on May 30 and early on the 31st, causing about $1.8 million dollars in damage and injuring two people. Two tornadoes were also reported.One of the hardest hit areas was in Big Eau Pleine Park, about 8 miles west-southwest of Mosinee (Marathon co.). Thunderstorm winds from a downburst gusted to as high as 85 mph, flattening or damaging trees in a 200 yard wide and 1/2 mile long swath. One person was injured, suffering a broken leg. Several campers and vehicles were also damaged or destroyed. The same thunderstorm produced a brief tornado 4 miles west of Mosinee.In Winnebago county, high winds over 80 mph damaged 25 mobile homes…

5. Jun 12, 2008Flash Flood$480,000
   National Weather Service narrative

   Torrential rain flooded roads and washed out a 10 foot section of railroad ties near Highway BB south of St. John. Numerous streets and basements were flooded and the St. Ana Fire Department needed to be sand bagged to avoid flooding. The flooding caused major damage to 1 home and minor damage to 60 others.

6. Jul 1, 2006Hail$300,000
   National Weather Service narrative

   Thunderstorms moved across northeast Wisconsin as a cold front pushed through the area. Several large storms produced hail of 2 inches to 4 inches in diameter during the afternoon and evening. Four inch diameter hail was reported in Suring (Oconto co.) and hailstones of just over 3 inches in diameter were measured east of Oconto Falls (Oconto co.) and near Branch (Manitowoc co.). An observer found tennis ball size hail near Hayes (Oconto co.) half an hour after the storms ended there. Damage amounts listed in this report are estimates. Gaint hail caused damage to more than 700 vehicles, denting them and smashing their windows. The hail damaged at least 800 homes, breaking windows,…

7. May 31, 1998Tornado$300,000
   National Weather Service narrative

   A series of thunderstorms roared across the area late on May 30 and early on the 31st, causing about $1.8 million dollars in damage and injuring two people. Two tornadoes were also reported.One of the hardest hit areas was in Big Eau Pleine Park, about 8 miles west-southwest of Mosinee (Marathon co.). Thunderstorm winds from a downburst gusted to as high as 85 mph, flattening or damaging trees in a 200 yard wide and 1/2 mile long swath. One person was injured, suffering a broken leg. Several campers and vehicles were also damaged or destroyed. The same thunderstorm produced a brief tornado 4 miles west of Mosinee.In Winnebago county, high winds over 80 mph damaged 25 mobile homes…

8. Jul 20, 2010Hail$300,000
   National Weather Service narrative

   Half dollar size hail and strong winds caused damage to 150 homes near Darboy. The homes sustained at least minor damage to roofs and siding.

9. May 3, 2018Flood$300,000
   National Weather Service narrative

   Heavy rainfall caused rivers, roads and basements to flood. The flooding washed out several roads throughout the county.

10. May 3, 2012Flash Flood$250,000
    National Weather Service narrative

    Flash flooding caused authorities to close many roads across Calumet County. The Village of Hilbert sustained the worst flooding, with approximately 100 homes impacted. A flooded creek washed out a section of asphalt on Cemetery Road near Forest Junction and ripped away the culvert. One motorist was injured while attempting to cross the missing section of road during the predawn hours. The driver was hospitalized and the front wheels were torn from the vehicle.

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.

All-time high

103°FJul 14, 1995

All-time low

−34°FFeb 10, 1899

Warmest night

80°F2 times, most recently Aug 1, 2006

Coldest day

−21°FJan 19, 1994

Wettest day

5.31 inSep 11, 1986

Snowiest day

16.0 inDec 17, 1908

Hottest year

1987mean 49.5°F

Coldest year

1972mean 41.9°F

Wettest year

201947.24 in

Driest year

194920.92 in

Snowiest season

81.3 in1978-79

Station Chilton (USC00471568), 840 ft elevation, 10.1 miles from the population centre. Daily records from 1894 to October 23, 2026; 99.4% 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.

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.

Neighbouring counties

• 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 USC00471568.
• 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.