Carlton County

Every recorded tornado

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

Mapped landslides

Mapped by USGS MN (1,787).

1. 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.

More event types since 1996

Costliest events since 1996

1. Jun 20, 2012Flash Flood$20.0 million
   National Weather Service narrative

   Jay Cooke State Park was evacuated due to severe flooding of the St. Louis River.|Highway 210 through the park was heavily damage. The historic swinging pedestrian bridge was washed away. Miles of hiking and biking trails were damaged.

2. Jun 20, 2012Flood$16.0 million
   National Weather Service narrative

   Moose Head Lake in Moose Lake overflowed its banks after the area received 6 to 8 inches of rain, flooding 30 percent of the town. One hundred and fifty homes were flooded. The schools were flooded. The town's water and sewer system were compromised.

3. Jun 20, 2012Flood$3.0 million
   National Weather Service narrative

   Flooding of the St Louis River began at the Scanlon gage at 1:30 AM CST on June 20th when it reached a level of 10.50 feet. The St Louis River reached a record-breaking crest of 16.66 feet at 3 am CST on June 21. The St Louis River returned below its flood stage of 10.50 feet on June 28th at 10:00 AM CST. Businesses and a campground near the river were flooded.

4. Jun 20, 2012Flash Flood$2.0 million
   National Weather Service narrative

   The reservoir at the City of Thomson overflowed and Carlton County Emergency Management ordered the evacuation of Thomson. Most of the town was flooded. The water remained for many days. Many homes were lost or severely damaged.

5. Jun 26, 2002Lightning$500,000
   National Weather Service narrative

   Lightning started a fire at an auto body shop, which destroyed the business.

6. Aug 27, 2007Lightning$120,000
   National Weather Service narrative

   A lightning bolt caused considerable roof and structural damage to the Queen of Peace Catholic Church. Damage to the electrical, phone, and public address system was also noted.

7. Apr 17, 2025Lightning$75,000
   National Weather Service narrative

   The Cloquet Are Fire District responded to a report of a house struck by lightning with snow inside the home on Washington Street. Fire crews found significant damage to both the interior and exterior of the home likely caused by the lightning strike. Damage was also found in the adjacent yard further pointing to a lightning strike. No injuries were reported.

8. Jun 12, 2024Tornado$50,000
   National Weather Service narrative

   Tornado developed on or near the Aitkin/Carlton County line and traveled southeast towards Highway 210 between Wright and Cromwell. Minor tree damage was noted on West Road near the start of the tornado path, with a broad area of large branches down and a few trees snapped towards the top. The tornado then traveled across a mainly marsh/bog landscape, crossing Center Road where power lines were damaged and widespread tree damage was noted along a 50 yard stretch of road. The tornado track continued on a southeast to east-southeast path, with the last signs of damage near to just south of Highway 210 near Woodbury Lake where a few clusters of tree damage were noted. No injuries or…

9. Aug 2, 2011Lightning$30,000
   National Weather Service narrative

   Lightning struck tree, which fell onto a house, waking the occupants.

10. Sep 19, 2024Hail$30,000
    National Weather Service narrative

    Cars were damaged on Interstate 35 near the Mahtowa exit.

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

105°F4 times, most recently Jul 13, 1936

All-time low

−45°F2 times, most recently Jan 12, 1912

Warmest night

78°FJul 26, 1917

Coldest day

−20°F2 times, most recently Feb 2, 1996

Wettest day

8.44 inSep 6, 1990

Snowiest day

21.4 inMar 4, 1985

Hottest year

1998mean 44.8°F

Coldest year

1917mean 34.3°F

Wettest year

199142.53 in

Driest year

191819.30 in

Snowiest season

113.4 in1950-51

Station Cloquet (USC00211630), 1,265 ft elevation, 4.2 miles from the population centre. Daily records from 1911 to October 23, 2026; 98.0% 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.

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 USC00211630.
• 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.