Laramie County, Wyoming

What hazards hit Laramie County most?

The most frequent records are high wind and dust records: 2,585 since 1996. The rank column places the county among Wyoming's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

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 Laramie County had?

NOAA records 130 tornadoes in Laramie County from 1953 to 2026, the strongest rated F3, with 1 death and 42 injuries recorded in the county. That is 1st of 23 Wyoming counties by days with tornadoes per 1,000 square miles since 1950. 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 127 tornadoes whose track touched Laramie County since 1950 (NOAA's county records number 130: they file a crossing tornado once per county segment, and the two databases differ on some tracks); along their whole tracks they killed 1 person.

Map of the strongest tornado tracks in Wyoming.

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 Laramie County?

The most recent record with damage, injuries or deaths is the June 25, 2026 thunderstorm wind ($1.0 million in damage in 2025 dollars).

NWS Employee sent photos of a derailed train with about 40 cars loaded with shipping containers on their side. Near exit 4 on I-25. Derailed train could be seen clearly from the Interstate for days. Time is the estimated time of QLCS moving through that area.
National Weather Service event narrative, NOAA Storm Events Database (search the full record, event 1339049)

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

A damage figure marked "step" is a record from before 1993: NOAA then filed damage by category, and the figure is the category as entered, in the dollars of that year, not an estimate of the loss.

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 Laramie 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).

High wind and dust storms in the 2010s: 1,714 records against 99 in the decade before, 1,714 of them forecast-zone records. Winter storms in the 2010s: 501 records against 87 in the decade before, 501 of them forecast-zone records. Cells marked z rose mostly through zone records. The local National Weather Service office files these once per forecast zone, so a change in how it draws its zones or splits a storm into records moves this count as much as the weather does; read it beside the Laramie County days with a record above.

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 Laramie County. The two busiest months are in violet.

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

Federal disaster declarations for Laramie County

FEMA's register lists 5 declarations that include Laramie County: 3 major disasters, one emergency and one fire management assistance declaration. Most were for biological (2) and fire (1).

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 Laramie County had?

NOAA's Storm Events Database holds 94 flood or flash flood records for Laramie County from 1996 to 2025, on 61 days, with 0 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Laramie County ranks 959th of 2,942 U.S. counties.

The National Flood Insurance Program has paid $970,000 on 192 claims filed in Laramie County; the most in one year was 77 in 1985. Claims count insured losses only: uninsured flood damage is not in this file.

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 Laramie County

FEMA's National Risk Index rates Laramie County Relatively Low overall, with an expected annual loss of $41.8 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.

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

Counties that share a border with Laramie County

1. Albany County 6,260
2. Laramie County 5,081
3. Weld County, CO 2,459
4. Larimer County, CO 1,978
5. Platte County 1,842
6. Goshen County 959
7. Kimball County, NE 650
8. Banner County, NE 388

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

Next

• Tornadoes in WyomingEvery Wyoming tornado since 1950 and the counties with the most per square mile
• High wind and dust storms in WyomingThe state's high wind and dust records, by county, year and month
• The Wyoming recordEvery hazard in the state, its deadliest events and its federal declarations
• FEMA's risk rating for each hazard in Laramie CountyThe hazard risk calculator: 18 hazards beside the county's record
• Download Laramie County's FEMA declarations (CSV)5 rows: every declaration that named the county, for your own analysis