Clark County

Every recorded tornado

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

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. Mar 6, 2017Wildfire, Clark$3.0 million
   National Weather Service narrative

   There were seven separate fires. Two moved near or through Englewood, originating in Oklahoma. Another consumed several homes just north of Ashland. Four others in northern Clark County consumed several homes initially but became a monster fire as the cold front moved through.||The fires subsided during the first night but flared up the following late morning and afternoon. ||As of late May there was still no real estimate of the number of dead cattle as many were never found but estimates are large, from 3 to 9 thousand head. Total acres burned in just Clark County were estimated at 425,000. There were 31 homes destroyed and 6 damaged. There were a total of 108 outbuildings…

2. Aug 20, 1997Hail$2.0 million
   National Weather Service narrative

   Nearly every window in the small community were broken with siding destroyed on many homes. Cars received considerable damage too. Shingles were also torn off. Skylights broken at the school.

3. May 24, 1998Hail$160,000
   National Weather Service narrative

   A USDA report indicated tennis ball size hail across parts of the county but no specific information was given to the location or time. There was damage to crops...almost county wide.

4. Aug 10, 1996Lightning$50,000
   National Weather Service narrative

   Lightning struck a home and caused extensive damage. South and southwest walls of the house were moved off the foundation. The carpet was singed. The floor in one room was forced 2 feet upward...several other walls were cracked.

5. Jun 12, 2009Hail$30,000
   National Weather Service narrative

   Golf ball sized hail covered the ground and combined with high wind caused extensive damage to vehicles and farm equipment.

6. May 6, 1998Hail$20,000
   National Weather Service narrative

   Hail swath varying from 2 to 5 miles wide extended from lakin to near montezuma. Wheat and even CRP grass consisting of Little Blue Stem, Indian, Switch and Side Oats were mowed down to the ground. There was no loss on the CRP but there was a total loss on the wheat and corn. There was also substantial property damage to homes, businesses and vehicles.

7. Mar 12, 2021Thunderstorm Wind$15,000
   National Weather Service narrative

   A mobile home was blown over by high wind.

8. Jun 12, 1997Thunderstorm Wind$10,000
9. Jul 3, 2006Thunderstorm Wind$5,000
10. Jul 3, 2000Thunderstorm Wind$4,500
    National Weather Service narrative

    Roof torn of a 15 x 30 shed and a tree was uprooted.

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 Jun 27, 2011

All-time low

−20°FFeb 10, 2011

Warmest night

85°FJul 16, 1905

Coldest day

0°FFeb 12, 1905

Wettest day

6.52 inOct 21, 1920

Snowiest day

16.5 inMar 28, 2009

Hottest year

1934mean 61.5°F

Coldest year

1960mean 54.0°F

Wettest year

194940.41 in

Driest year

19669.91 in

Snowiest season

48.2 in1911-12

Station Ashland (USC00140365), 1,970 ft elevation, 9.8 miles from the population centre. Daily records from 1900 to October 27, 2026; 99.5% 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 USC00140365.
• 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.