Rio Blanco County
Population 6,683 (2025) 3,221 sq mi
Large wildfires have burned 105,130 acres of Rio Blanco County since 1984, 8th most of 64 counties in Colorado; the largest was the Dead Dog Fire in 2017.
Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed
- Tornado damage paths since 19503
- Wildfire burn scars since 198434
At a glance
The record for Rio Blanco County in eight numbers. Each links to its section below.
Tornadoes
About one every 25 years since 1950, none rated F3/EF3 or stronger.
Strongest
June 21, 2006
F1, 1.0 mile path
50 yards wide.
Most recent
Wednesday, May 29, 2013
EF0, 1.0 mile path
13 years ago.
Every recorded tornado
| May 29, 2013 | EF0 | 1.0 | 0 | 0 |
| Jun 21, 2006 | F1 | 1.0 | 0 | 0 |
| Jul 3, 1957 | F1 | 0.1 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Rio Blanco County: 0.
- 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.
Hurricanes and tropical storms
No tropical storm or hurricane has tracked within 100 miles since records began in 1851.
Wildfire and smoke
105,130 acres burned in 34 large fires since 1984, equal to 5.1% of the land.
Largest
June 11, 2017
Dead Dog Fire, 17,815 acres
15,091 acres inside Rio Blanco County.
Most recent
August 17, 2023
Deserado Fire
1,191 acres in total.
Every large fire
| Deserado | 2023 | 1,191 | 1,191 |
| Oil Springs | 2021 | 12,595 | 12,598 |
| Fawn Creek | 2020 | 3,400 | 3,401 |
| Hunt | 2019 | 3,214 | 3,216 |
| Cabin Lake | 2018 | 5,765 | 5,771 |
| Red Canyon | 2018 | 5,701 | 5,703 |
| Indian Valley | 2018 | 5,733 | 6,382 |
| Fawn | 2018 | 1,035 | 1,037 |
| Dead Dog | 2017 | 15,091 | 17,815 |
| Lost Solar | 2016 | 2,730 | 5,141 |
| Blair | 2016 | 1,063 | 1,063 |
| Wild Rose | 2013 | 1,153 | 1,154 |
| Mellen | 2009 | 2,684 | 3,397 |
| Spring Creek | 2009 | 1,371 | 1,372 |
| Jordan | 2008 | 1,043 | 1,046 |
| Pack Trail Wfu | 2005 | 2,894 | 2,896 |
| Greasewood Wfu | 2004 | 6,962 | 6,970 |
| Yankee Gulch | 2003 | 1,515 | 1,517 |
| North Barcus | 2002 | 4,042 | 4,045 |
| Big Fish | 2002 | 255 | 17,272 |
| Lost Lakes | 2002 | 2,731 | 5,888 |
| Pinyon Ridge | 2002 | 1,470 | 2,389 |
| Jelly | 2001 | 2,045 | 2,044 |
| Greasewood Complex | 2001 | 1,351 | 1,350 |
| Scandard | 2000 | 3,616 | 3,620 |
| Switchback | 2000 | 1,654 | 1,656 |
| Taylor | 2000 | 2,123 | 2,123 |
| Big Duck | 2000 | 1,193 | 1,196 |
| Wagon Road | 1999 | 1,583 | 1,587 |
| Walsh Knolls | 1999 | 1,107 | 1,453 |
| Ute Creek | 1994 | 3,224 | 3,226 |
| Fletcher2 | 1994 | 1,831 | 1,832 |
| Dinosaur | 1988 | 414 | 1,857 |
| Thirteen | 1988 | 1,336 | 1,337 |
- 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
Smokiest year
2021: 44 days
Heavy smoke on 19 days in 2021, the most of any year.
Last 10 years
14.1 days a year
Medium or heavy smoke, 2016 to 2025.
2025
17 days
Medium or heavy smoke. 23 so far in 2026.
- 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.
Floods and flood insurance
9 federal flood insurance claims since 1979, with $31,000 paid.
Claims by ZIP code
| 81648 | 6 | $14,000 |
Flood events since 1996
- Flash Flood33
- Heavy Rain14
- Flood8
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
| Jun 8, 2011 | White River near Rangely | 7.71 | −0.29 |
| Jun 22, 2019 | White River near Rangely | 7.71 | −0.29 |
| Jun 7, 2011 | White River near Meeker | 6.29 | −0.71 |
| Jun 21, 2019 | White River near Meeker | 5.85 | −1.15 |
| Jun 1, 2014 | White River near Meeker | 5.60 | −1.40 |
| Jun 9, 2010 | White River near Rangely | 6.56 | −1.44 |
| May 22, 2008 | White River near Rangely | 6.50 | −1.50 |
| Jun 2, 2014 | White River near Rangely | 6.49 | −1.51 |
| May 26, 2009 | White River near Rangely | 6.48 | −1.52 |
| Jun 17, 2023 | White River near Rangely | 6.37 | −1.63 |
| May 27, 2023 | White River near Meeker | 5.35 | −1.65 |
| May 21, 2008 | White River near Meeker | 5.19 | −1.81 |
| May 25, 2009 | White River near Meeker | 5.19 | −1.81 |
| Dec 1, 2021 | White River near Rangely | 6.16 | −1.84 |
| May 24, 2006 | White River near Rangely | 6.14 | −1.86 |
| May 23, 2006 | White River near Meeker | 5.14 | −1.86 |
| Jun 8, 2010 | White River near Meeker | 5.14 | −1.86 |
| May 23, 2005 | White River near Meeker | 5.06 | −1.94 |
| Jun 3, 2005 | White River near Rangely | 5.99 | −2.01 |
| Jun 7, 2024 | White River near Meeker | 4.98 | −2.02 |
| Jun 11, 2017 | White River near Meeker | 4.91 | −2.09 |
| Jun 4, 2015 | White River near Meeker | 4.88 | −2.12 |
| Mar 8, 2020 | White River near Rangely | 5.86 | −2.14 |
| Jun 6, 2016 | White River near Meeker | 4.82 | −2.18 |
| Jun 3, 2015 | White River near Rangely | 5.71 | −2.29 |
River gauges
| White River near Meeker | 7.0 | 6.29 ft | 0 |
| White River near Rangely | 8.0 | 7.71 ft | 0 |
- 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.
Drought
In severe drought or worse for 206 of 1,581 months since 1895 (13%); the longest spell lasted 19 months.
206
Months in severe drought or worse since 1895
100
Months in extreme drought
13%
Share of all months, severe or worse
396
Drought reports to the Weather Service since 1996
Lowest reading
July 2026
−8.48, extreme drought
Longest severe spell
19 months
August 2020 to February 2022.
Latest month
September 2026
−7.44, extreme drought
- 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.
Earthquakes, volcanoes and landslides
6 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 4.5 in 1995.
25
Magnitude 2.5+ inside the county since 1973
51
Magnitude 3+ within 50 miles since 1973
6
Magnitude 4+ within 50 miles since 1900
0
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
March 20, 1995
Magnitude 4.5
10 km NNW of Rangely, Colorado; inside the county, -1.6 miles deep.
Most recent, magnitude 3 or more
September 10, 2025
Magnitude 4.1
10 km W of Maeser, Utah; 38.8 miles away.
Every earthquake of magnitude 4 or more within 50 miles
| Sep 10, 2025 | 4.1 | 38.8 |
| Aug 24, 2018 | 4.1 | Inside |
| Jan 31, 2002 | 4.3 | 24.0 |
| Aug 9, 2001 | 4.0 | 12.0 |
| May 20, 1995 | 4.1 | Inside |
| Mar 20, 1995 | 4.5 | Inside |
- 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).
- 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.
Volcanoes within 100 miles
| Dotsero Volcanic Center | 23.1 | Moderate |
- U.S. volcanoes within 100 miles, from the USGS Volcano Hazards Program. The threat category is the USGS 2018 National Volcanic Threat Assessment, which ranks volcanoes by how hazardous their past eruptions were and how many people and how much infrastructure lie near them. It is not a forecast of eruption.
USGS Volcano Hazards Program, retrieved October 30, 2026.
Mapped landslides
1,017
Landslides mapped, probable or better
1
With a recorded date
3
Source inventories
Mapped by CO GS (1,015), NASA (1), UT GRC (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.
Severe weather and other events
1,690 events in the National Weather Service record, 1,687 of them since 1996.
9
Hail reports, 1 inch or larger
1
Hail, 2 inches or larger
42
Damaging gusts, 58 mph+
711
Winter weather events since 1996
0
Heat events since 1996
103
Cold events since 1996
Largest hail
September 20, 1997
4.00 inches
Strongest measured or estimated gust
September 20, 1997
92 mph
More event types since 1996
| Lightning | 2 | 1 |
| Dense fog and smoke | 91 | 0 |
| Debris flows | 30 | 0 |
| Avalanches | 2 | 0 |
Costliest events since 1996
- Sep 20, 1997Hail$1.0 million
National Weather Service narrative
Hail stones up to 4 inches in diameter were carried along by strong winds and produced widespread damage to buildings and vehicles. Some livestock were injured. All aircraft parked outside of the hangars at the Rangely airport were damaged. A new glider plane was totalled.
- Jul 1, 2021Wildfire, Lower Yampa River Basin$500,000
National Weather Service narrative
The Oil Springs Fire was started by lightning and was approximately 23 miles south of Rangely. It grew to 12,613 acres before it was contained in mid July. Colorado Hwy 139 was closed from Fruita to north of Douglas Pass for a while due to the fire.
- Jul 16, 2023Wildfire, Central Yampa River Basin$300,000
National Weather Service narrative
The Howard Fire started in mid July from a lightning strike near Meeker, and grew to 255 acres before it was contained at the end of the month.
- Oct 1, 2023Wildfire, Central Yampa River Basin$250,000
National Weather Service narrative
The Iron Fire started in late September from unknown causes 18 miles northwest of Craig. The fire grew to 7,392 acres before it was contained in early October.
- Sep 29, 2023Wildfire, Central Yampa River Basin$250,000
National Weather Service narrative
The Iron Fire started in late September from unknown causes 18 miles northwest of Craig. The fire grew to 7,392 acres before it was contained in early October.
- Jul 26, 2019Flash Flood$200,000
National Weather Service narrative
Rally car racers encountered flooding along County Road 73 near Hall Draw when their vehicle stalled. Drivers escaped the vehicle before it was swept downstream toward the White River. The vehicle was later found approximately 1 mile downstream from where it got swept off the road.
- Apr 8, 2005Strong Wind, Central Yampa River Basin$200,000
National Weather Service narrative
Strong gradient winds produced widespread damage in eastern Moffat County. A 60 foot communications tower was blown down and microwave dishes and antennas were blown off other communications towers. Utility poles and trees were blown down, and large tree limbs were snapped off. Electric power was knocked out for a few hours in many areas, and even longer in a some isolated locations. Several campers and trailers were rolled over, and several sheds were blown over. Shingles were blown off roofs. Many unsecured items blew away and were not found.
- Aug 16, 2023Wildfire, Lower Yampa River Basin$150,000
National Weather Service narrative
The Deserado Fire started in mid August from a lightning strike 8 miles east of Rangely, and grew to 1131 acres before it was contained the next week.
- Sep 20, 1997Thunderstorm Wind$150,000
National Weather Service narrative
Strong outflow winds from a supercell thunderstorm were estimated to have gusts at least to 80 MPH. Most 4 by 4 foot wooden sign posts were snapped off within Rangely as well as along highway 64 and highway 139 in the Rangely area. Many steel sign posts were bent over and a few were snapped off. A 2 foot diameter cottonwood tree was blown over and crushed a late model van. Some other large trees were blown over, along with many large tree branches. A metal storage shed was ripped from its moorings and blown over the side of a hill.
- Sep 1, 2023Wildfire, Roan And Tavaputs Plateaus$100,000
National Weather Service narrative
The Pike Ridge Fire started in mid August from a lightning strike 29 miles north of Loma near Douglas Pass. The fire grew to 246 acres before it was contained in mid September.
- 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.
Weather records
From Meeker, 19.2 miles from the county’s population centre, with records from 1893.
- All-time high
- 103°FJul 11, 1900
- All-time low
- −43°F2 times, most recently Jan 12, 1963
- Warmest night
- 74°F2 times, most recently Jun 12, 1918
- Coldest day
- −6°FJan 12, 1963
- Wettest day
- 3.24 inAug 10, 1925
- Snowiest day
- 15.0 inMay 19, 1960
- Hottest year
- 1954mean 47.1°F
- Coldest year
- 1912mean 40.1°F
- Wettest year
- 199725.24 in
- Driest year
- 20127.26 in
- Snowiest season
- 126.5 in1951-52
Median first snow
October 29
Earliest: September 9, 2020
Median last snow
April 19
Latest: June 1, 1919
0 of 78 winters had no measurable snow.
Station Meeker (USC00055484), 6,229 ft elevation, 19.2 miles from the population centre. Daily records from 1893 to October 26, 2026; 96.0% 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.
Federal disaster declarations
7 since 1953. The most recent: Elk Fire, August 6, 2025.
| Aug 6, 2025 | Fire | FM-5604-CO |
| Aug 6, 2025 | Fire | FM-5603-CO |
| Mar 28, 2020 | Biological | DR-4498-CO |
| Mar 13, 2020 | Biological | EM-3436-CO |
| Sep 5, 2005 | Coastal Storm | EM-3224-CO |
| Jun 19, 2002 | Fire | DR-1421-CO |
| Jul 27, 1984 | Flood | DR-719-CO |
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.
How this compares
Where Rio Blanco County stands among 64 counties in Colorado and 3,143 in the United States.
| Tornadoes since 1950 | 3 | 40 / 64 |
| Tornadoes rated F3/EF3 or stronger | 0 | — |
| Tropical cyclones within 50 mi | 0 | — |
| Hurricane-strength passes within 50 mi | 0 | — |
| Wildfire acres since 1984 | 105,130 | 8 / 64 |
| Flood insurance claims | 9 | 33 / 64 |
| Flood insurance paid | $31,000 | 32 / 64 |
| Disaster declarations | 7 | 50 / 64 |
| Flood events since 1996 | 55 | 11 / 64 |
| Hail and wind events since 1996 | 174 | 32 / 64 |
| Winter storm events since 1996 | 711 | 13 / 64 |
| Reported damage since 1996 | $3.9 million | 31 / 64 |
| River crests at major flood stage | 0 | — |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 206 | 19 / 64 |
| Medium or heavy smoke days a year, last 10 years | 14.1 | 32 / 64 |
| Earthquakes M4+ within 50 mi since 1900 | 6 | 13 / 64 |
| Earthquakes M2.5+ in the county since 1973 | 25 | 4 / 64 |
Neighbouring counties
| Garfield County | 0 | 0 |
| Moffat County | 7 | 0 |
| Routt County | 3 | 0 |
| Uintah County UT | 8 | 0 |
Sources and vintage
Every number on this page comes from these public records.
- 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 USC00055484.
- 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.
- Volcanoes USGS Volcano Hazards Program, U.S. volcanoes and 2018 threat assessment.
- 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.