Duchesne County

Every recorded tornado

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

Every large fire

1. Large fires mapped by the Monitoring Trends in Burn Severity program since 1984: 1,000 acres or more in the West, 500 or more in the East. Prescribed burns are excluded. Acres here are the part of each perimeter inside this place.

Monitoring Trends in Burn Severity (USGS and U.S. Forest Service), 1984 to 2026.

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.

Every earthquake of magnitude 4 or more within 50 miles

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.

Mapped landslides

Mapped by UT GRC (439), NASA (1).

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. Jul 1, 2018Wildfire, Wasatch Plateau/Book Cliffs$25.0 million
   National Weather Service narrative

   The Dollar Ridge Fire was a human caused wildfire that began during the afternoon of July 1. The fire burned 68,869 acres and destroyed 363 structures, including 74 homes. Costs to fight the fire were approximately $18 million. At the height of the fire, approximately 1,100 people were evacuated from communities in Wasatch and Duchesne Counties. Note that this event continued into August.

2. Aug 1, 2018Wildfire, Wasatch Plateau/Book Cliffs$25.0 million
   National Weather Service narrative

   The Dollar Ridge Fire was a human caused wildfire that began during the afternoon of July 1. The fire burned 68,869 acres and destroyed 363 structures, including 74 homes. Costs to fight the fire were approximately $18 million, though rehabilitation efforts were projected to add significantly to the cost. At the height of the fire, approximately 1,100 people were evacuated from communities in Wasatch and Duchesne Counties. The fire was considered effectively contained on August 31, at 94% containment. Note that this event began in July.

3. Jul 1, 2012Wildfire, Wasatch Plateau/Book Cliffs$900,000
   National Weather Service narrative

   The Church Camp Fire began on June 24th, approximately 22 miles south of Duchesne, Utah. The cause of the fire is unknown, but it was believed to be human-caused. The fire caused the evacuation of Argyle Canyon, a popular summer cabin and recreation area. A total of 7,211 acres were burned before the fire was 100% contained on July 7th. Three injuries to firefighters were reported, with one back injury and two heat-related injuries. The fire destroyed 15 cabins and 78 other non-residential buildings. In addition to the property damage, fire suppression costs totaled $12.2 million. Note that this event began in June, and monetary property damage listed here is for the entire event.

4. Jun 27, 2018Wildfire, Western Uinta Basin$750,000
   National Weather Service narrative

   The Fruitland Shed Fire was a human-caused wildfire that began on June 27 in the city of Fruitland and was contained on June 28. The fire burned 20 acres and destroyed seven structures, including two permanent residences. Two people were treated for smoke inhalation in association with the fire, including a firefighter.

5. Jun 9, 2000Lightning$200,000
   National Weather Service narrative

   A lightning strike near Myton damaged a treatment unit and destroyed two 400-gallon oil tanks.

6. Jul 13, 2011Flash Flood$200,000
   National Weather Service narrative

   In an area already experiencing river flooding, heavy rainfall caused flash flooding near Tabiona. The primary road damage was along State Route 35, where a gulch running under the road was heavily backed up for hundreds of yards, and the pressure from the backup eventually washed out the road. The resultant damage was an area 30 feet deep and 40 feet across where the road was entirely missing.||Around 11:45 pm MDT, two vehicles drove directly into the washed out area. The occupants of the first vehicle suffered one fatality and one injury. The occupant of the other vehicle was injured.

7. Mar 20, 2000High Wind, Wasatch Plateau/Book Cliffs$200,000
   National Weather Service narrative

   Strong downslope winds developed overnight across Weber County. Wind gusts estimated at 115mph (100kts) tore the roofs off of 3 condominiums in South Ogden. Major damage was also caused to the interiors of these condos, along with some toppled garage doors, a toppled brick wall, and a damaged fence nearby. Miraculously, nobody was seriously injured. Damage estimates to the area was just over 1 million dollars. These same downslope winds also caused an estimated 70 thousand dollars damage to the roof of Wasatch Hall on the campus of Weber State University, and several thousand dollars in damage due to scattered losses of fences, shingles and trees in the Ogden area. These same…

8. Jul 22, 2018Flash Flood$150,000
   National Weather Service narrative

   Heavy rain over the Dollar Ridge Fire burn scar produced a large flash flood for areas downstream along the Strawberry River. In the Camelot Resort area, 30 adults and 13 children were trapped by the water and debris, and had to be rescued by law enforcement, while nearly a dozen people were rescued in Timber Canyon.

9. Oct 29, 2024Winter Weather, Wasatch Plateau/Book Cliffs$150,000
   National Weather Service narrative

   A pickup truck collided head-on with a semitrailer after the driver of the pickup truck lost control on state Route 96. Archived liquid precipitation measurements suggest around 0.2-0.5 had fallen in the area by that point, with National Operational Hydrologic Remote Sensing Center data indicating a snow depth of 2-4 inches at the time of the crash.

10. Sep 22, 2016Flood$100,000
    National Weather Service narrative

    Flash flooding was reported across Roosevelt, with the worst flooding along State Street. Multiple homes and businesses experienced flood damage, though most of the residential flooding occurred in yards and driveways. In addition, water flowed across U.S. Route 40, and water was over a foot deep in some locations as it crossed the highway.

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

99°F2 times, most recently Jul 13, 2002

All-time low

−27°FJan 3, 1974

Warmest night

78°FJul 15, 2002

Coldest day

−4°FDec 22, 1990

Wettest day

2.10 inSep 22, 2016

Snowiest day

16.0 inDec 21, 2010

Hottest year

2025mean 49.6°F

Coldest year

1973mean 41.3°F

Wettest year

195715.44 in

Driest year

19744.24 in

Snowiest season

75.0 in2018-19

Station Neola (USC00426123), 5,900 ft elevation, 10.6 miles from the population centre. Daily records from 1956 to October 22, 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.

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 USC00426123.
• 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.