Harmon County

Every recorded tornado

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

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. Dec 27, 2015Ice Storm, Harmon$513,000
   National Weather Service narrative

   Damage estimates reported by local power companies.

2. Apr 28, 2006Hail$350,000
   National Weather Service narrative

   Large hail combined with strong winds caused damage to several homes and businesses. Many homes had numerous windows broken by the hail. The homes also had significant damage to sides of the house and to roofs. The vinyl siding on the front of the Vinson First Baptist Church was also heavily damaged.

3. Jun 1, 2012Thunderstorm Wind$50,000
   National Weather Service narrative

   Several utility poles were blown down by estimated 70 mph wind gusts.

4. Jul 29, 2015Thunderstorm Wind$45,000
   National Weather Service narrative

   Several sheds/carports lost their roofs. A camper shell and a boat were picked up and flipped. Several roofs were on the ground, porches were missing, trees were down, dumpsters were tipped over, and antennae were snapped.

5. May 7, 2008High Wind, Harmon$35,000
   National Weather Service narrative

   An apparent heat burst caused damage in the town of Hollis. Numerous trees and power lines were downed. The Amburn auto shop metal building was destroyed. Two cars inside sustained minor damage. Five tin sheds at Hollis Commission Inc. were damaged. Two electrical power poles were also downed. Minor damage was also sustained at the Harmon County Dairy. Monetary damages were estimated.

6. May 31, 2022Thunderstorm Wind$30,000
   National Weather Service narrative

   Major roof damage to three businesses, 6 homes with minor damage reported, power poles and tree branches downed. Time estimated from radar.

7. Apr 15, 2003Tornado$30,000
   National Weather Service narrative

   This is the final segment of the tornado that began in Hardeman County, Texas then moved northeast into extreme western Jackson County, Oklahoma before dissipating in Harmon County. The tornado caused F1 damage during this portion of the path. A farm located 10 miles south of Gould and 1 mile west of Highway 5 had five outbuildings destroyed and damaged the roof to a brick home. The tornado continued northeast and downed power lines along Highway 5 then dissipated approximately 1 mile east of Highway 5 at 1834 CST.

8. Dec 26, 2000Winter Storm, Harmon$25,000
   National Weather Service narrative

   A major winter storm developed during the evening of the 25th across all of western, central, and southeast Oklahoma, with significant accumulations of snow and ice beginning shortly after 0000 CST on the 26th. Mainly snow fell across northwest Oklahoma with accumulations between 8 and 12 inches reported across northern Beckham, Roger Mills, and southern Ellis Counties. Snow amounts varied widely across the rest of northwest Oklahoma with 4 to 8 inches falling across portions of Dewey and Custer Counties, and only 1 to 2 inches across Woods and Alfalfa Counties, however even in areas where snow amounts were light, significant disruptions in travel and power outages were reported.A…

9. Jun 19, 2008Thunderstorm Wind$25,000
   National Weather Service narrative

   Roof damage was reported to a commercial building in Hollis. Monetary damages were estimated.

10. Jul 11, 1997Thunderstorm Wind$25,000
    National Weather Service narrative

    Severe thunderstorm winds damaged fences and roofs, blew windows out, split or uprooted several trees, and destroyed one carport.

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

117°F2 times, most recently Jun 26, 2011

All-time low

−5°F2 times, most recently Dec 23, 1989

Warmest night

88°FJul 16, 2001

Coldest day

10°FDec 22, 1990

Wettest day

5.32 inOct 20, 1983

Snowiest day

11.0 inDec 2, 1971

Hottest year

2012mean 65.6°F

Coldest year

1987mean 59.1°F

Wettest year

199539.08 in

Driest year

195610.44 in

Snowiest season

27.4 in1967-68

Station Childress Municipal Airport (USW00023007), 1,949 ft elevation, 28.7 miles from the population centre. Daily records from 1948 to October 26, 2026; 99.8% 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 USW00023007.
• 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.