Carroll County

Every recorded tornado

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

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.

1. 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).
2. 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.

Costliest events since 1996

1. Apr 8, 1999Tornado$300,000
   National Weather Service narrative

   The tornado touched down 3 miles west of Bosworth and moved northeast into Chariton and Macon Counties. A home was destroyed 1 mile north of Bosworth and several large trees were downed before the tornado moved into Chariton County.

2. Mar 12, 2006Tornado$250,000
   National Weather Service narrative

   F0 tornado touched down around Norborne at 0944 CST and then lifted 2 miles east of Carrollton at 1005 CST. Damage was noted to buildings...trees and power lines.

3. Jan 30, 2002Ice Storm, Carroll$250,000
   National Weather Service narrative

   A long-lived major ice and snow storm blasted much of northwest, northern and central Missouri from late Tuesday, January 29th, until Thursday, January 31st. Ice accumulations of over an inch were observed from the Kansas City metropolitan area, east and north through Moberly Missouri. At one point 409,504 total customers were without electrical power in the CWA, with some residents without power up to two weeks. For the Kansas City area, the ice storm was ranked as the worst ever. Further north across northern Missouri, heavy snow fell generally along and north of a line, from St. Joseph to Trenton to Kirksville. Snow accumulations ranged from 8 to 14 inches.

4. Oct 14, 2000Thunderstorm Wind$200,000
   National Weather Service narrative

   Extensive wind damage was reported just southwest of Hale. A 50-by-60 foot machine shed and a 60-by-120 foot Morton building were destroyed, and farm equipment inside was damaged. A two car garage was destroyed, and a modular home suffered roof damage. Large trees and limbs were downed, and one limb fell on the roof of a home, causing damage.

5. Mar 9, 2002Thunderstorm Wind$25,000
   National Weather Service narrative

   Roof blown off a house. Silo blown over onto church.

6. Jun 17, 2009Thunderstorm Wind$20,000
   National Weather Service narrative

   Spotter reported thunderstorm wind gusts estimated to be up to 100 mph. Winds were gusting up to 60 mph, for 10 to 15 minutes, between Norborne and Carrollton. Numerous trees and power lines were down. Several power poles were snapped.

7. Jun 14, 1998Thunderstorm Wind$20,000
   National Weather Service narrative

   A barn was destroyed by severe thunderstorm winds along County Line Rd, 8 miles southwest of Plymouth.

8. May 26, 2000Thunderstorm Wind$10,000
   National Weather Service narrative

   Thunderstorm winds damaged the roof of a home east of Carrollton.

9. Oct 14, 2000Thunderstorm Wind$10,000
   National Weather Service narrative

   Large tree limbs were blown down and a machine shed was severely damaged.

10. Jun 2, 2018Thunderstorm Wind$10,000
    National Weather Service narrative

    Main power line was downed by strong winds.

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

114°FJul 14, 1954

All-time low

−34°FFeb 13, 1905

Warmest night

86°FJul 8, 1991

Coldest day

−7°FDec 22, 1989

Wettest day

7.34 inJul 25, 2025

Snowiest day

18.0 inFeb 12, 1894

Hottest year

2012mean 57.6°F

Coldest year

1979mean 51.8°F

Wettest year

199864.72 in

Driest year

195621.54 in

Snowiest season

54.6 in1959-60

Station Carrollton (USC00231340), 705 ft elevation, 3.4 miles from the population centre. Daily records from 1893 to October 27, 2026; 96.3% 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 USC00231340.
• 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.