Apache County
Population 64,445 (2025) 11,198 sq mi
Large wildfires have burned 543,116 acres of Apache County since 1984, 9th most of 15 counties in Arizona; the largest was the Wallow Fire in 2011.
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 195017
- Wildfire burn scars since 198457
At a glance
The record for Apache County in eight numbers. Each links to its section below.
Acres burned since 1984
543,116
9th of 15 in Arizona
57 large fires; the largest was Wallow, 2011
DetailsStrongest tornado
EF0
September 13, 2022, 7.7 mile path
Tornadoes
About one every 4.5 years since 1950, none rated F3/EF3 or stronger.
Strongest
September 13, 2022
EF0, 7.7 mile path
10 yards wide.
Most recent
Wednesday, June 4, 2025
EFU, 0.5 mile path
Within the past year.
Every recorded tornado
| Jun 4, 2025 | EFU | 0.5 | 0 | 0 |
| Sep 13, 2022 | EF0 | 7.7 | 0 | 0 |
| Jun 17, 2021 | EF0 | 0.1 | 0 | 0 |
| Oct 20, 2015 | EF0 | 6.9 | 0 | 0 |
| Oct 21, 2010 | EF0 | 0.8 | 0 | 0 |
| Aug 3, 2010 | EF0 | 1.0 | 0 | 0 |
| May 22, 2009 | EF0 | 1.0 | 0 | 0 |
| Sep 3, 2008 | EF0 | 0.5 | 0 | 0 |
| Aug 30, 2006 | F0 | 1.0 | 0 | 0 |
| Jul 25, 2005 | F0 | 1.0 | 0 | 0 |
| Jul 16, 2005 | F0 | 1.0 | 0 | 0 |
| Jul 16, 2005 | F0 | 1.0 | 0 | 0 |
| Sep 9, 2003 | F0 | 1.0 | 0 | 0 |
| Aug 14, 1979 | F0 | 1.0 | 0 | 0 |
| Oct 27, 1974 | F0 | 0.2 | 0 | 0 |
| Oct 17, 1962 | F0 | 0.1 | 0 | 0 |
| Apr 29, 1957 | F0 | 2.5 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Apache 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
543,116 acres burned in 57 large fires since 1984, equal to 7.6% of the land.
Largest
May 29, 2011
Wallow Fire, 563,564 acres
328,065 acres inside Apache County.
Most recent
June 28, 2025
Oak Ridge Fire
11,467 acres in total.
Every large fire
| Oak Ridge | 2025 | 11,469 | 11,467 |
| Greer | 2025 | 19,911 | 19,913 |
| Dart | 2023 | 1,431 | 1,434 |
| Campbell | 2023 | 638 | 1,415 |
| Ranch | 2022 | 2,185 | 2,185 |
| Firebox | 2021 | 1,073 | 1,073 |
| Mcdonald Tank | 2021 | 3,572 | 3,576 |
| Boggy Creek | 2021 | 2,945 | 2,946 |
| Bonito Rock | 2021 | 1,733 | 1,732 |
| Lofer | 2020 | 1,528 | 1,528 |
| Wood Springs 2 | 2020 | 13,206 | 13,204 |
| Telephone | 2019 | 2,361 | 2,358 |
| Whiting | 2019 | 2,029 | 2,031 |
| Rattlesnake | 2018 | 1,640 | 27,377 |
| Freeze 2 | 2017 | 5 | 2,975 |
| Elk | 2016 | 163 | 1,964 |
| Oak | 2016 | 1,932 | 1,929 |
| Quemado | 2016 | 2,475 | 2,474 |
| Paddy Creek | 2016 | 1,960 | 1,959 |
| Lion | 2016 | 3,125 | 3,123 |
| Turkey | 2015 | 1,398 | 1,399 |
| San Juan | 2014 | 7,350 | 7,347 |
| Black River Tank | 2014 | 3,119 | 3,421 |
| Wallow | 2011 | 328,065 | 563,564 |
| Big Hollow | 2011 | 5,768 | 5,766 |
| Turkey | 2010 | 10,167 | 10,162 |
| Reno | 2009 | 114 | 6,977 |
| Jaralosa | 2009 | 84 | 1,144 |
| 55 | 2009 | 4,283 | 4,284 |
| Unnamed | 2008 | 3,019 | 3,020 |
| Unnamed | 2008 | 2,171 | 2,169 |
| Oak Ridge 3 | 2007 | 2,959 | 2,961 |
| Jump | 2007 | 2,066 | 2,067 |
| Kinlichee 2 | 2006 | 1,738 | 1,738 |
| Three Forks | 2004 | 6,845 | 6,844 |
| Carrizo 1 | 2002 | 3,699 | 3,702 |
| Little | 2002 | 7,703 | 7,701 |
| Lamedeer | 2001 | 5,905 | 5,902 |
| 9400 Fmz | 2001 | 1,312 | 1,311 |
| Unnamed | 2000 | 6,063 | 6,064 |
| Unnamed | 1999 | 1,220 | 1,219 |
| Unnamed | 1999 | 3,210 | 3,210 |
| Unnamed | 1999 | 5,736 | 5,736 |
| Unnamed | 1999 | 5,751 | 5,751 |
| Tonto | 1998 | 2,414 | 2,412 |
| Unnamed | 1998 | 2,055 | 2,053 |
| Unnamed | 1997 | 1,555 | 1,555 |
| Unnamed | 1997 | 1,682 | 1,681 |
| Unnamed | 1997 | 2,452 | 2,453 |
| Hdscrabble | 1996 | 2,216 | 2,217 |
| Allentown5 | 1996 | 2,653 | 2,653 |
| Unnamed | 1996 | 1,311 | 1,309 |
| Unnamed | 1996 | 4,892 | 4,893 |
| Unnamed | 1996 | 19,641 | 19,677 |
| Unnamed | 1992 | 1,821 | 1,817 |
| Container | 1990 | 3,976 | 3,974 |
| Unnamed | 1987 | 1,295 | 1,293 |
- 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: 24 days
Heavy smoke on 8 days in 2020, the most of any year.
Last 10 years
7.7 days a year
Medium or heavy smoke, 2016 to 2025.
2025
8 days
Medium or heavy smoke. 5 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
10 federal flood insurance claims since 1979, with $18,000 paid.
Flood events since 1996
- Flash Flood108
- Heavy Rain37
- Flood9
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
Most severe crest
July 23, 2006
Chinle Creek at Chinle, 4.66 ft
0.66 feet above the 4.0 ft flood stage; moderate flooding by today’s categories.
Most recent moderate or major crest
July 23, 2006
Chinle Creek at Chinle, 4.66 ft
Moderate flooding.
River gauges
| Chinle Creek at Chinle | 4.0 | 4.66 ft | 0 |
| Little Colorado River above Lyman Lake | 12.0 | 6.99 ft | 0 |
| Little Colorado River near St Johns | 12.5 | 14.75 ft | 0 |
| Puerco River near Chambers | 18.0 | 11.80 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 329 of 1,581 months since 1895 (21%); the longest spell lasted 34 months.
329
Months in severe drought or worse since 1895
197
Months in extreme drought
21%
Share of all months, severe or worse
Lowest reading
June 2026
−8.24, extreme drought
Longest severe spell
34 months
November 2001 to August 2004.
Latest month
September 2026
−5.56, 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
8 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 4.9 in 1938.
9
Magnitude 2.5+ inside the county since 1973
30
Magnitude 3+ within 50 miles since 1973
8
Magnitude 4+ within 50 miles since 1900
0
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
September 17, 1938
Magnitude 4.9
34 km E of Pleasanton, New Mexico; 45.6 miles away.
Most recent, magnitude 3 or more
January 9, 2026
Magnitude 3.7
20 km SSW of Chilchinbito, Arizona; 45.5 miles away.
Every earthquake of magnitude 4 or more within 50 miles
| Jun 1, 1980 | 4.3 | 9.2 |
| Dec 25, 1969 | 4.4 | 42.4 |
| Jun 3, 1939 | 4.6 | 45.6 |
| Nov 26, 1938 | 4.6 | 45.6 |
| Nov 2, 1938 | 4.3 | 45.6 |
| Sep 29, 1938 | 4.8 | 45.6 |
| Sep 19, 1938 | 4.3 | 45.6 |
| Sep 17, 1938 | 4.9 | 45.6 |
- 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
| Red Hill-Quemado Volcanic Field | 34.9 | Very low |
| San Francisco Volcanic Field | 86.7 | Moderate |
| Zuni-Bandera Volcanic Field | 92.5 | Very low |
- 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
305
Landslides mapped, probable or better
0
With a recorded date
1
Source inventory
Mapped by AZ GS (305).
- 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
771 events in the National Weather Service record, 760 of them since 1996.
15
Hail reports, 1 inch or larger
0
Hail, 2 inches or larger
21
Damaging gusts, 58 mph+
202
Winter weather events since 1996
9
Heat events since 1996
8
Cold events since 1996
Largest hail
July 31, 1998
1.75 inches
Strongest measured or estimated gust
August 23, 2010
107 mph
More event types since 1996
| Lightning | 5 | 4 |
| Dust storms and dust devils | 37 | 0 |
| Dense fog and smoke | 8 | 0 |
| Debris flows | 1 | 0 |
| Avalanches | 1 | 0 |
Costliest events since 1996
- Jun 1, 2011Wildfire, White Mountains$58.0 million
National Weather Service narrative
The Wallow Fire entered Apache County around 200 PM on June first. The fire burned a total of 313,103 acres in Apache County. The fire did not spread after June 30th (it was contained). The fire was declared out (controlled) on July 13th. It cost an estimated 58 million dollars to fight the fire in Apache County alone.
- Jul 21, 2019Wildfire, Black Mesa Area$9.0 million
National Weather Service narrative
The Museum Fire started about 4 miles north of Flagstaff on Sunday July 21 at around 1115 AM. The fire grew to 1,962 acres in the Dry Lake Hills area. The burn severity was 12% High, 28% moderate, 48%, and 12% very low. Much of this area drains into the Spruce Wash which runs into several communities of Flagstaff. An initial estimate of $9 million was spent on fire suppression. Extensive flood protection measures (200,000 sand bags and many jersey barriers) have been put in place below the fire scar.
- Sep 14, 2013Flash Flood$100,000
National Weather Service narrative
Close to 50 families were displace across the Navajo Nation in Apache County because of the flash flooding. Part of the Navajo Zoo was inundated with water.
- Jan 1, 2011Extreme Cold/Wind Chill, White Mountains$50,000
National Weather Service narrative
Very cold temperatures caused water pipes to burnt in the South County Health Complex in Show Low. The flooding that resulted caused the clouser of the complex for at least a week. The new buildings were still under warranty.
- Apr 15, 2009High Wind, Chuska Mountains And Defiance Plateau$50,000
National Weather Service narrative
The Window Rock ASOS reported a peak wind gusts to 59 MPH. Blowing dust reduced the visibility to less than one mile. A restaurant sign blew off its pedestal in Window Rock, crushed an SUV, and injured a couple who had stopped for lunch. One person, in critical condition, was taken to a local health service center then transported to Phoenix once the winds died down and it was safe to fly.
- Feb 20, 1996Strong Wind, Little Colorado River Valley In Apache County$40,000
National Weather Service narrative
Wind Damage in Springerville, Arizona. A brief gradient wind gust ripped the roof off one mobile home and knock several other mobiles homes off their foundations. Structural movement broke several water lines and caused extensive damage to trailer skirting. Many anchors and tie-down cables used to secure mobile homes were snapped. There was no estimated or recorded wind speed. There were no other reported high wind incidents in the vicinity. The event lasted less than one minute.
- Feb 1, 2011Extreme Cold/Wind Chill, White Mountains$30,000
National Weather Service narrative
Very cold conditions lead to freezing and burst pipes in the White Mountains. About two dozen businesses, schools, and homes had frozen pipes.
- Jul 24, 2011Flash Flood$25,000
National Weather Service narrative
Heavy rain over Escudilla Peak area caused flash flooding and mud slides over sections of Highway 180/191 north and southeast of Alpine. Mud, trees, and rocks temporarily blocked the highway between Alpine and Nutrioso. The Alpine Ranger District Office experienced minor flooding in front of the office. Flooding and erosion on private property was also reported. Rainfall amounts of around an inch to one and a half inches was reported.
- Aug 18, 2011Flash Flood$20,000
National Weather Service narrative
Flash flooding flooding and debris flows were reported along side canyons and over road ways in the eastern side of Greer. Rocks one foot in diameter washed over roads. The creek in Butler Canyon over flowed its banks.
- Jul 4, 2011Flash Flood$20,000
National Weather Service narrative
The Greer Fire Department reported flash flooding on Butler Creek in Greer. Water and debris flowed to a dept of 1 to 2 feet.
- 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 Gallup Municipal Airport, 35.3 miles from the county’s population centre, with records from 1973.
- All-time high
- 101°F4 times, most recently Jul 17, 2023
- All-time low
- −34°FDec 23, 1990
- Warmest night
- 70°FJun 24, 2016
- Coldest day
- 8°FFeb 2, 2011
- Wettest day
- 2.36 inApr 16, 1988
- Snowiest day
- 10.5 inDec 5, 1992
- Hottest year
- 2022mean 51.9°F
- Coldest year
- 1975mean 46.1°F
- Wettest year
- 199715.83 in
- Driest year
- 19895.44 in
- Snowiest season
- 60.4 in1990-91
Median first snow
November 8
Earliest: October 10, 1973
Median last snow
April 23
Latest: May 20, 1983
0 of 28 winters had no measurable snow.
Station Gallup Municipal Airport (USW00023081), 6,464 ft elevation, 35.3 miles from the population centre. Daily records from 1973 to October 26, 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.
Federal disaster declarations
16 since 1953. The most recent: Greer Fire, May 14, 2025.
| May 14, 2025 | Fire | FM-5584-AZ |
| Sep 13, 2021 | Flood | DR-4620-AZ |
| Apr 4, 2020 | Biological | DR-4524-AZ |
| Mar 13, 2020 | Biological | EM-3442-AZ |
| Jun 2, 2011 | Fire | FM-2915-AZ |
| Mar 18, 2010 | Severe Storm | DR-1888-AZ |
| Jan 24, 2010 | Severe Storm | EM-3307-AZ |
| Sep 12, 2005 | Hurricane | EM-3241-AZ |
| Feb 17, 2005 | Severe Storm | DR-1581-AZ |
| Jun 9, 2004 | Fire | FM-2520-AZ |
| Jun 25, 2002 | Fire | DR-1422-AZ |
| Jan 19, 1993 | Flood | DR-977-AZ |
| Oct 5, 1983 | Flood | DR-691-AZ |
| Mar 4, 1978 | Flood | DR-551-AZ |
| Apr 15, 1977 | Drought | EM-3038-AZ |
| Sep 22, 1970 | Flood | DR-294-AZ |
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 Apache County stands among 15 counties in Arizona and 3,143 in the United States.
| Tornadoes since 1950 | 17 | 9 / 15 |
| Tornadoes rated F3/EF3 or stronger | 0 | — |
| Tropical cyclones within 50 mi | 0 | — |
| Hurricane-strength passes within 50 mi | 0 | — |
| Wildfire acres since 1984 | 543,116 | 9 / 15 |
| Flood insurance claims | 10 | 15 / 15 |
| Flood insurance paid | $18,000 | 15 / 15 |
| Disaster declarations | 16 | 7 / 15 |
| Flood events since 1996 | 154 | 10 / 15 |
| Hail and wind events since 1996 | 287 | 9 / 15 |
| Winter storm events since 1996 | 202 | 3 / 15 |
| Reported damage since 1996 | $67.4 million | 6 / 15 |
| River crests at major flood stage | 0 | — |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 329 | 1 / 15 |
| Medium or heavy smoke days a year, last 10 years | 7.7 | 4 / 15 |
| Earthquakes M4+ within 50 mi since 1900 | 8 | 6 / 15 |
| Earthquakes M2.5+ in the county since 1973 | 9 | 8 / 15 |
Neighbouring counties
| Catron County NM | 0 | 0 |
| Cibola County NM | 2 | 0 |
| Graham County | 1 | 0 |
| Greenlee County | 0 | 0 |
| McKinley County NM | 5 | 0 |
| Montezuma County CO | 3 | 0 |
| Navajo County | 23 | 0 |
| San Juan County NM | 11 | 0 |
| San Juan County UT | 7 | 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 USW00023081.
- 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.