Rio Grande County, Colorado

County storm and disaster record · FIPS 08105 · population 11,498 · 912 sq mi

NOAA's Storm Events Database holds 783 records for Rio Grande County, Colorado from 1950 through June 30, 2026, on 498 days; the most frequent are winter storm records (594 records). 748 of them are forecast-zone records, which the National Weather Service files once per zone: a county covered by several zones receives each one, so a single storm can add several records on the same day. The deadliest single record is the March 19, 2010 avalanche, filed for the forecast zone Upper Rio Grande Valley / Eastern San Juan Mountains Below 10000 Ft, which covers the county: 2 deaths. FEMA has issued 9 declarations naming the county since 1970, 7 of them for natural hazards; the latest for a natural hazard was “West Fork Fire Complex” on June 21, 2013.

The record, 1950 to 2026

Storm records filed for the county each year (2026 to June 30, 2026). Before 1996 NOAA recorded only tornadoes (from 1950), thunderstorm wind and hail (from 1955).

  • recorded, no damage figure
  • under $100,000
  • $100,000 or more
  • $1 million or more
  • $10 million or more, or a death
  • $100 million or more, or 10 deaths
  • a year's colour: its recorded damage or deaths
  • a year with a death
  • 1955: wind and hail recorded from 1955
  • 1996: all 48 event types from 1996
Storm records
783on 498 days, 1950 to June 30, 2026
Deaths recorded
71 injuries
Damage, 2025 dollars
$37Mas filed (scale steps before 1993)
Tornadoes
2strongest EF0
FEMA declarations
9latest 2020

Source: NOAA NCEI Storm Events Database, records through June 30, 2026 (file revision 20260918); damage converted to 2025 dollars with the BLS CPI-U. Search the record at NCEI. BLS consumer price index.

What hazards hit Rio Grande County most?

The most frequent records are winter storm records: 594 since 1996. The rank column places the county among Colorado's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

Rio Grande County: records by hazard, 1950 to June 30, 2026
HazardRecordsDaysFirst, lastKilledInjuredDamageRank in state
Winter storms 594 379 1996-2026 2 0 $634K 19 of 63
High wind and dust storms 131 84 1996-2026 0 0 $250K 19 of 63
Hail 21 19 1955-2024 0 0 $10K 34 of 63
Wildfires 9 7 2002-2013 0 0 $36M 30 of 63
Floods 5 4 1999-2003 0 0 $44K 53 of 63
Landslides and avalanches 5 5 2006-2016 5 1 – 30 of 63
Drought 4 1 2002-2002 0 0 – 44 of 63
Heavy rain 4 2 2022-2024 0 0 – 32 of 63
Extreme cold 3 2 1996-1996 0 0 – 49 of 63
Severe thunderstorm wind 3 3 1973-1990 0 0 – 51 of 63
Fog, smoke and funnel clouds 2 2 2002-2026 0 0 – 35 of 63
Tornadoes 2 2 1995-2012 0 0 $12K 41 of 63

Source: NOAA NCEI Storm Events Database (county and forecast-zone records attributed to the county; a zone record shows its own totals on each county it covers). Days: dates with at least one record of the hazard in the county. Ranks: days with a record per 1,000 square miles of land (Census Bureau 2024 Gazetteer), since 1950 for tornadoes, 1955 for hail and thunderstorm wind, 1996 for the rest.

How many tornadoes has Rio Grande County had?

NOAA records 2 tornadoes in Rio Grande County from 1995 to 2012, the strongest rated EF0, with 0 deaths and 0 injuries recorded in the county. A tornado that crossed a county line is counted in each county it touched, with the length of its path inside the county.

Counted as whole tornadoes rather than county records, the Storm Prediction Center's database holds 3 tornadoes whose track touched Rio Grande County since 1950 (NOAA's county records number 2: they file a crossing tornado once per county segment, and the two databases differ on some tracks); along their whole tracks they killed 0 people.

Map of the strongest tornado tracks in Colorado.

Every tornado record filed for Rio Grande County (2)
Every tornado recorded in Rio Grande County, newest first
DatePlaceCharacterKilledInjuredDamage
2012-09-25 Del Norte, Rio Grande County EF0 1.38 mi x 100 yd 0 0 $6K
1995-06-29 Monte Vista, Rio Grande County F0 0.1 mi x 10 yd 0 0 $6K

Source: NOAA NCEI Storm Events Database, tornado records by county (path length in the county, maximum width); ratings as published: F scale before February 1, 2007, EF scale after. Whole-track figures: NOAA Storm Prediction Center tornado database (1950-2025). SPC severe weather database.

When was the last damaging storm in Rio Grande County?

The most recent record with damage, injuries or deaths is the February 2, 2016 avalanche (1 death).

A snowmobile rider died in an avalanche in the Lost Mine Creek drainage between Campo Mollino and Park Creek.
National Weather Service event narrative, NOAA Storm Events Database (search the full record, event 611167)
The 12 most recent records kept for Rio Grande County
DateRecordCharacterKilledInjuredDamage
2026-05-18 High WindAlamosa County and Rio Grande County · forecast zone Alamosa Vicinity / Central San Luis Valley Below 8500 Ft 60 kt wind 0 0 –
2026-05-01 Dense FogAlamosa County and Rio Grande County · forecast zone Alamosa Vicinity / Central San Luis Valley Below 8500 Ft 0 0 –
2026-03-15 Dust StormAlamosa County and Rio Grande County · forecast zone Alamosa Vicinity / Central San Luis Valley Below 8500 Ft 0 0 –
2026-03-15 High WindRio Grande County and Saguache County · forecast zone Del Norte Vicinity / Northern San Luis Valley Below 8500 Ft 53 kt wind 0 0 –
2026-03-06 Heavy SnowRio Grande County and Saguache County · forecast zone Del Norte Vicinity / Northern San Luis Valley Below 8500 Ft 0 0 –
2026-01-23 Heavy SnowRio Grande County and Saguache County · forecast zone Del Norte Vicinity / Northern San Luis Valley Below 8500 Ft 0 0 –
2026-01-23 Heavy SnowConejos County and 2 more · forecast zone Eastern San Juan Mountains Above 10000 Ft 0 0 –
2026-01-08 Heavy SnowAlamosa County and Rio Grande County · forecast zone Alamosa Vicinity / Central San Luis Valley Below 8500 Ft 0 0 –
2026-01-08 Heavy SnowConejos County and 2 more · forecast zone Eastern San Juan Mountains Above 10000 Ft 0 0 –
2026-01-02 Heavy SnowConejos County and 2 more · forecast zone Eastern San Juan Mountains Above 10000 Ft 0 0 –
2025-12-26 Heavy SnowConejos County and 2 more · forecast zone Eastern San Juan Mountains Above 10000 Ft 0 0 –
2025-12-03 Heavy SnowRio Grande County and Saguache County · forecast zone Del Norte Vicinity / Northern San Luis Valley Below 8500 Ft 0 0 –

Source: NOAA NCEI Storm Events Database; every record of 2025-2026 is listed, earlier ones when they caused deaths, injuries or $250,000 of damage (2025 dollars), and every tornado.

The deadliest and costliest records

Records with deaths or injuries in Rio Grande County, most deaths first
DateRecordCharacterKilledInjuredDamage
2010-03-19 AvalancheConejos County and 2 more · forecast zone Upper Rio Grande Valley / Eastern San Juan Mountains Below 10000 Ft Two men were buried and perished when up to 2 1/2 feet of snow slid off a cabin roof 17 miles west of Creede. This was the first instance of a fatal roof avalanche since 1996 in Vail. 2 0 –
2012-02-16 AvalancheConejos County and 2 more · forecast zone Eastern San Juan Mountains Above 10000 Ft A back country skier was killed in an avalanche near Wolf Creek Pass in the Gibbs Creek drainage basin. The skier was found under 5-feet of snow in a 600 foot by 600 foot slide. Another skier was injured. 1 1 –
2016-02-02 AvalancheConejos County and 2 more · forecast zone Upper Rio Grande Valley / Eastern San Juan Mountains Below 10000 Ft A snowmobile rider died in an avalanche in the Lost Mine Creek drainage between Campo Mollino and Park Creek. 1 0 –
2010-11-22 AvalancheConejos County and 2 more · forecast zone Eastern San Juan Mountains Above 10000 Ft An avalanche at Wolf Creek Ski Area killed the Wolf Creek Ski Area Director. 1 0 –
1998-04-02 Heavy SnowConejos County and 2 more · forecast zone Teller County/Rampart Range/Pikes Peak A strong upper level system brought a quick blast of snow to south central and southeast Colorado. Snow totals ranged from 4 to 8 inches across the affected area, with a high of 18 inches at the Valley View Hot Springs in the Northern San Luis Valley, and 15 inches at the Wolf Creek Ski Area in the Eastern San Juan ... 1 0 –
1997-11-27 Winter StormConejos County and 2 more · forecast zone Western Fremont And Northern Custer Counties A strong winter storm system moved into Colorado from the west, bringing an abundance of moisture and gusty winds from 20 to 40 mph. The storm brought accumulations of 12 to 20 inches to the Eastern San Juan and La Garita mountains during the morning and afternoon of the 27th. The San Luis valley received 6 to 18 ... 1 0 –
The costliest records in Rio Grande County since 1993, damage in 2025 dollars
DateRecordCharacterKilledInjuredDamage
2002-06-19 WildfireSouth Fork, Rio Grande County 0 0 $18M
2002-07-01 WildfireSouth Fork, Rio Grande County 0 0 $18M
2012-09-25 TornadoDel Norte, Rio Grande County EF0 1.38 mi x 100 yd 0 0 $6K
1995-06-29 TornadoMonte Vista, Rio Grande County F0 0.1 mi x 10 yd 0 0 $6K

Source: NOAA NCEI Storm Events Database: deaths and injuries direct and indirect; damage is property plus crops as estimated by the National Weather Service, converted to 2025 dollars.

Is it getting more frequent?

Records per decade for Rio Grande County's most frequent hazards. Counts rose everywhere after 1996, when NOAA began recording every event type, so compare decades within a hazard's complete period only (the shaded cells come before it).

Rio Grande County: records per decade (the 2020s to June 30, 2026)
Hazard1950s1960s1970s1980s1990s2000s2010s2020-26
Winter storms––––156175122141
High wind and dust storms––––40261748
Hail12316512

Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).

What time of year?

Records by month in Rio Grande County. The two busiest months are in violet.

The values, month by month

Jan 101 · Feb 112 · Mar 120 · Apr 108 · May 30 · Jun 18 · Jul 14 · Aug 8 · Sep 26 · Oct 52 · Nov 85 · Dec 109 (records).

Source: NOAA NCEI Storm Events Database, records by the month they began.

Federal disaster declarations for Rio Grande County

FEMA's register lists 9 declarations that include Rio Grande County: 4 major disasters, 3 emergencies and 2 fire management assistance declarations. Most were for fire (3) and biological (2).

Declarations including Rio Grande County, newest first
DeclaredNumberTypeTitle
2020-03-28DR-4498BiologicalCovid-19 Pandemic
2020-03-13EM-3436BiologicalCovid-19
2013-06-21FM-5031FireWest Fork Fire Complex
2005-09-05EM-3224Coastal StormHurricane Katrina Evacuation
2002-06-19DR-1421FireWildfires
2002-06-19FM-2428FireMillion Fire
1977-01-29EM-3025DroughtDrought
1973-07-06DR-396FloodFlooding & Landslides
1970-09-22DR-293FloodHeavy Rains & Flooding

Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), declarations through October 2, 2026; one declaration is counted once however many areas it names. OpenFEMA dataset page.

How many floods has Rio Grande County had?

NOAA's Storm Events Database holds 5 flood or flash flood records for Rio Grande County from 1999 to 2003, on 4 days, with 0 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Rio Grande County ranks 2321st of 2,942 U.S. counties.

The National Flood Insurance Program has paid $14,000 on 11 claims filed in Rio Grande County; the most in one year was 3 in 1980. Claims count insured losses only: uninsured flood damage is not in this file.

The values, year by year

1980: 3 · 1981: 1 · 1982: 1 · 1985: 1 · 2002: 1 · 2007: 1 · 2019: 3; the other years: 0.

Source: FEMA OpenFEMA NFIP Redacted Claims, as of September 8, 2026; claims by year of loss, payments in the dollars of the year paid. OpenFEMA dataset page.

FEMA's modeled risk for Rio Grande County

FEMA's National Risk Index rates Rio Grande County Relatively Low overall, with an expected annual loss of $8.9 million. These are FEMA's model estimates of future loss from 18 hazards, not a count of what happened; they can differ from the record above.

National Risk Index ratings for Rio Grande County (December 2025 release), by FEMA's rating, then score
HazardRisk ratingExpected annual lossModeled frequency
DroughtRelatively High$1.2M75 modeled event-days a year
AvalancheRelatively High$959Konce in about 15 years (modeled)
LightningRelatively High$532K54 a year (modeled)
LandslideRelatively Moderate$55Konce in about 4 years (modeled)
EarthquakeRelatively Low$448Konce in about 599 years (modeled)
WildfireRelatively Low$67Konce in about 7,203 years (modeled)
Cold WaveRelatively Low$705Kabout once a year (modeled)
Riverine FloodingRelatively Low$4.7Monce in about 7 years (modeled)

Source: FEMA National Risk Index, county table, December 2025 release. FEMA's National Risk Index map.

Counties that share a border with Rio Grande County

  1. Archuleta County 1,459
  2. Saguache County 1,165
  3. Rio Grande County 783
  4. Mineral County 661
  5. Conejos County 628
  6. Alamosa County 450

Source: U.S. Census Bureau county adjacency file; NOAA NCEI Storm Events Database, records since 1950. The Census Bureau's adjacency file.

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