Dewey County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Dewey 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 storm within 100 miles

1. Tropical storms and hurricanes (34 kt or more, still tropical) at closest approach. Post-tropical remnants with gale-force winds are listed but not counted. Direct: track within 50 miles; near: within 100 miles. Distance is measured to the county boundary for counties and to the city centre for cities, using positions interpolated hourly between HURDAT2 fixes.

National Hurricane Center HURDAT2, 1851 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.

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.

More event types since 1996

Costliest events since 1996

1. Jan 30, 2002Ice Storm, Dewey$25.0 million
   National Weather Service narrative

   Freezing rain began across the northwest third of the state during the evening of the 29th with significant accumulations of ice developing shortly after midnight on the 30th. Freezing rain shifted southward during the early morning of the 30th with moderate to occasionally heavy freezing rain occurring in a 50 to 60 mile wide band, extending from north central Oklahoma, near Ponca City and Perry, southwestward toward Enid, Kingfisher, Oklahoma City, Weatherford, Anadarko, and Hobart. In many areas, the freezing rain continued for 12 to 24 hours, with ice accumulations of 1 to 2 inches commonly observed. As the end of the storm neared, freezing rain transitioned to sleet and snow…

2. Jan 14, 2017Ice Storm, Dewey$584,000
   National Weather Service narrative

   The electric cooperatives reported 861 power outages, likely due to icing, with damage estimates to $584K.

3. Mar 14, 2025Wildfire, Dewey$400,000
   National Weather Service narrative

   The Camargo Fire burned 6,075 acres in southwestern Dewey County, near the community of Camargo. The included monetary loss/property damage figure is approximate; additional assessment is ongoing.

4. Dec 27, 2015Winter Storm, Dewey$362,000
   National Weather Service narrative

   Emergency manager reporter 4 inches of sleet, 2 inches of snow, and 1 inch of ice accumulation. Damage estimates reported by local power companies.

5. Mar 22, 2026Wildfire, Dewey$276,000
   National Weather Service narrative

   The Jumping Juniper Fire burned 623 acres across northwestern Dewey County, in areas between Vici and Camargo.

6. Jun 9, 2005Hail$200,000
   National Weather Service narrative

   Hail was an oblong stone which measured 2.5 inches by 3.5 inches. The large hail caused damage to vehicles along with damage to windows and roofs of homes. Tree limbs were also downed.

7. Feb 25, 2024Wildfire, Dewey$191,000
   National Weather Service narrative

   The 'Marsh Fire' spread over 603 acres across southern Dewey County.

8. Nov 27, 2015Ice Storm, Dewey$171,000
   National Weather Service narrative

   Estimated from meltdown. Damage estimates are from local power cooperatives.

9. Aug 24, 2025Thunderstorm Wind$100,000
   National Weather Service narrative

   Relayed images courtesy of the Oklahoma Department of Emergency Management show significant thunderstorm wind damage at this location. The roof of a log cabin was blown off along with additional significant roof and siding damage to nearby outbuildings. The event time is estimated from radar observations.

10. Jun 16, 2005Thunderstorm Wind$75,000
    National Weather Service narrative

    The roof was ripped off a grain elevator with the rest of the structure collapsing in on itself. Downed trees and power lines caused a brief closing of Highway 34. Large tree limbs fell onto two vehicles. Several large trees were also uprooted. One tree was split.

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°F4 times, most recently Jul 11, 2009

All-time low

−21°FFeb 10, 2011

Warmest night

84°FJul 28, 2011

Coldest day

3°FDec 22, 1989

Wettest day

5.83 inJun 11, 2005

Snowiest day

17.0 in2 times, most recently Mar 28, 2009

Hottest year

1953mean 63.1°F

Coldest year

2014mean 56.7°F

Wettest year

195747.58 in

Driest year

195412.88 in

Snowiest season

54.0 in1987-88

Station Waynoka (USC00349404), 1,508 ft elevation, 37.4 miles from the population centre. Daily records from 1938 to October 27, 2026; 95.0% 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 USC00349404.
• 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.