States › New Mexico › San Juan County
San Juan County, New Mexico
Recorded hazard history: storm events since 1950, federal disaster declarations since 1953, flood insurance claims since 1978, and FEMA's risk index.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. NCEI storm records through 30 Jun 2026; OpenFEMA declarations refreshed 29 Sep 2026; NFIP claims as of 8 Sep 2026.
Between 1950 and 2026, NCEI recorded 158 storm events in San Juan County, New Mexico, led by damaging wind.
That is 2.9 events per 100 square miles, below the New Mexico figure of 20.4, and 13.1 per 10,000 residents against 116.9 statewide.
6 events fall in the 12 months to 30 Jun 2026. NCEI attributes 5 deaths and 11 injuries to events in the county, with property damage estimated at $11M and crop damage at $12K.
FEMA has designated the county in 11 federal disaster declarations since 1953; the most recent is South Fork Fire, Salt Fire, And Flooding (major disaster, 20 Jun 2024).
National Flood Insurance Program policyholders in the county filed 48 claims since 1978, of which 32 were paid, totalling $537K (about $17K per paid claim). FEMA counts 135 residential flood policies in force.
FEMA's National Risk Index rates the county's overall risk as "Relatively Moderate" and its expected annual loss as "Relatively Low" ($44M a year across 18 hazards).
Compared with New Mexico and the United States
| Measure | San Juan County | New Mexico | US |
|---|---|---|---|
| Recorded events since 1950 | 158 | 24,740 | 1,977,440 |
| Events per 100 square miles | 2.9 | 20.4 | 56.0 |
| Events per 10,000 residents | 13.1 | 116.9 | 59.6 |
| Events in the last 12 months | 6 | 942 | 62,008 |
| Deaths recorded by NCEI | 5 | 191 | 26,435 |
| Property damage (NCEI estimates) | $11M | $3.2B | $575B |
| NFIP claims per 1,000 residents | 0.4 | 0.9 | 8.1 |
| Average paid NFIP claim | $17K | $37K | $43K |
| Claims per 100 policies in force, last 10 years | 2.2 | 5.7 | 16.1 |
County-recorded events plus zone-recorded events whose forecast zone is named for the county. State and US rows include events recorded only by forecast zone. Rates use 2021 Census population and land area.
Events by decade
Trend: 99 events in the 20 years to 2025 against 36 in the 20 years before. Reporting practice changed in 1996 and again with automated reports in the 2000s, so decade totals measure the record as much as the weather.
Events by type
Hazard pages exist for hail, tornado, flood, wind and winter where the county has at least 10 recorded events. "Other" covers heavy rain, debris flow, dust, funnel clouds and similar reports.
Largest recorded events
| Date | Event type | Group | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|---|
| 31 Jul 1999 | Heavy Rain | Other | — | — | — | 1 | 4 | County |
| 2 Aug 2003 | Lightning | Lightning | — | — | — | 1 | 1 | County |
| 5 Aug 2016 | Flash Flood | Flood | — | $50K | — | 1 | — | County |
| 10 May 1957 | Tornado | Tornado | F2 | $25K | — | 1 | — | County |
| 11 Nov 1998 | Heat | Heat | — | — | — | 1 | — | County |
| 18 Jun 1968 | Tornado | Tornado | F2 | $250K | — | — | 3 | County |
| 23 Oct 2000 | Thunderstorm Wind | Wind | — | $20K | — | — | 1 | County |
| 13 Aug 2003 | Heavy Rain | Other | — | — | — | — | 1 | County |
| 24 Aug 2009 | Lightning | Lightning | — | — | — | — | 1 | County |
| 21 Aug 2024 | Thunderstorm Wind | Wind | 66 mph | $3.0M | — | — | — | County |
| 1 Aug 2010 | Flash Flood | Flood | — | $2.0M | — | — | — | County |
| 26 Aug 2015 | Flash Flood | Flood | — | $1.0M | — | — | — | County |
| 5 Aug 2016 | Flash Flood | Flood | — | $1.0M | — | — | — | County |
| 21 Jun 2024 | Flash Flood | Flood | — | $500K | — | — | — | County |
| 25 Aug 2024 | Flash Flood | Flood | — | $500K | — | — | — | County |
| 26 Aug 2015 | Thunderstorm Wind | Wind | 104 mph | $350K | — | — | — | County |
| 10 Sep 2013 | Flash Flood | Flood | — | $250K | — | — | — | County |
| 27 Jun 2024 | Flash Flood | Flood | — | $250K | — | — | — | County |
| 16 Aug 2022 | Flash Flood | Flood | — | $200K | — | — | — | County |
| 1 Aug 1999 | Flash Flood | Flood | — | $150K | — | — | — | County |
Ranked by deaths, then injuries, then NCEI's damage estimate. Deaths and injuries are NCEI counts (direct plus indirect); no personal details are recorded here.
Federal disaster declarations
| Declared | Number | Type | Incident | Title | Programs |
|---|---|---|---|---|---|
| 20 Jun 2024 | DR-4795 | Major disaster | Fire | South Fork Fire, Salt Fire, And Flooding | Individual assistance, Public assistance |
| 5 Apr 2020 | DR-4529 | Major disaster | Biological | Covid-19 Pandemic | Individual assistance, Public assistance |
| 13 Mar 2020 | EM-3460 | Emergency | Biological | Covid-19 | Public assistance |
| 29 Oct 2013 | DR-4152 | Major disaster | Flood | Severe Storms, Flooding, And Mudslides | Public assistance |
| 18 Jun 2012 | FM-2981 | Fire management assistance | Fire | Blanco (Cr 4901) Fire | Public assistance |
| 13 Sep 2010 | DR-1936 | Major disaster | Flood | Severe Storms And Flooding | Public assistance |
| 7 Sep 2005 | EM-3229 | Emergency | Hurricane | Hurricane Katrina Evacuation | Public assistance |
| 13 May 2000 | DR-1329 | Major disaster | Fire | Severe Forest Fire | Individual assistance |
| 10 May 2000 | EM-3154 | Emergency | Fire | Severe Fire Threats | Public assistance |
| 22 Sep 1999 | DR-1301 | Major disaster | Severe Storm | Severe Ice Storms, Flooding And Heavy Rains | Public assistance |
| 2 Mar 1977 | EM-3034 | Emergency | Drought | Drought | Public assistance |
Declarations in which FEMA designated this county, from the OpenFEMA Disaster Declarations Summaries (v2). DR: major disaster; EM: emergency; FM: fire management assistance. Programs show whether individual or public assistance was made available.
Flood insurance claims
| Year of loss | Claims | Paid claims | Amount paid | Average paid |
|---|---|---|---|---|
| 2024 | 1 | 1 | $30,679 | $30,679 |
| 2017 | 2 | 2 | $4,178 | $2,089 |
| 2015 | 8 | 8 | $210,390 | $26,299 |
| 2013 | 12 | 8 | $253,199 | $31,650 |
| 2010 | 5 | 3 | $19,273 | $6,424 |
| 2008 | 1 | 1 | $2,697 | $2,697 |
| 2006 | 2 | 0 | $0 | — |
| 2005 | 1 | 0 | $0 | — |
| 2000 | 2 | 1 | $949 | $949 |
| 1996 | 2 | 1 | $1,408 | $1,408 |
| 1992 | 1 | 0 | $0 | — |
| 1988 | 2 | 1 | $1,919 | $1,919 |
| 1986 | 5 | 3 | $8,394 | $2,798 |
| 1982 | 1 | 0 | $0 | — |
| 1981 | 1 | 1 | $3,785 | $3,785 |
| 1980 | 1 | 1 | $497 | $497 |
| 1979 | 1 | 1 | $75 | $75 |
OpenFEMA NFIP claims (v3, as of 8 Sep 2026), aggregated by year of loss; amounts are building, contents and increased-cost-of-compliance payments as recorded. Repetitive-loss counts from the NFIP Multiple Loss Properties file (2 Aug 2026); policies in force from the NFIP Residential Penetration Rates file (3 Aug 2026).
National Risk Index
| Hazard (NRI) | Risk rating | Expected annual loss |
|---|---|---|
| Inland flooding | $31,069,712 | |
| Drought | $4,759,000 | |
| Cold wave | $3,499,050 | |
| Earthquake | $1,502,349 | |
| Lightning | $1,388,400 | |
| Heat wave | $909,620 | |
| Wildfire | $285,003 | |
| Winter weather | $233,063 | |
| Tornado | $179,416 | |
| Strong wind | $132,767 | |
| Landslide | $51,177 | |
| Hail | $32,632 | |
| Ice storm | $30,206 | |
| Avalanche | $47 |
FEMA National Risk Index, December 2025 release. Ratings are FEMA's relative comparison of counties; expected annual loss is FEMA's modelled estimate of average yearly building, population and agriculture loss. See how to read the NRI.
Hurricane and tropical storm passes
No HURDAT2 track at tropical-storm strength passes within 100 miles of the county's centre point (through the 2025 season).
ZIP codes with flood claims
ZIP codes whose NFIP claims carry this county's code, with the number of claims. Five or more claims are needed for a ZIP page to be indexed.
Questions and answers
How often does it hail in San Juan County, NM?
NCEI records 28 hail events in San Juan County since 1950, in 19 different years; that is about 0.4 recorded events a year. 6 reports were golf-ball size (1.75 in) or larger.
Has San Juan County had a tornado?
Yes. NCEI records 11 tornadoes in San Juan County since 1950, 2 of them rated (E)F2 or stronger. Tornado deaths recorded: 1.
When was the last federal disaster declaration for San Juan County?
20 Jun 2024: South Fork Fire, Salt Fire, And Flooding, a major disaster declaration for fire. The county appears in 11 declarations since 1953.
How many flood insurance claims have been filed in San Juan County, and how much was paid?
48 NFIP claims since 1978, 32 of them paid, for $537K in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.
Is San Juan County in the National Risk Index's high-risk band?
FEMA's National Risk Index (December 2025) rates the county "Relatively Moderate" for overall risk, "Relatively Low" for expected annual loss, "Very High" for social vulnerability and "Very Low" for community resilience. These ratings are FEMA's relative comparison across all US counties.
How does San Juan County compare with the rest of New Mexico?
2.9 recorded events per 100 square miles against 20.4 statewide, and 0.4 NFIP claims per 1,000 residents against 0.9. The comparison table on this page shows each measure beside the state and national figures.
Provenance
Storm events: NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026 (public domain). Declarations: OpenFEMA DisasterDeclarationsSummaries v2, refreshed 29 Sep 2026. Flood claims: OpenFEMA NfipClaims v3 as of 8 Sep 2026; NfipMultipleLossProperties v1 (2 Aug 2026); NfipResidentialPenetrationRates v1 (3 Aug 2026). Risk index: FEMA National Risk Index, December 2025. Hurricane tracks: NHC HURDAT2 through 2025. Population and area: US Census Bureau, 2021 vintage. Built 30 Sep 2026; see the methodology and corrections pages. Hazard hubs: Hail · Tornado · Flood · Wind · Winter.