Harmon County, Oklahoma severe weather history spans 497 recorded events between 1952 and 2026. The dominant hazard is hail, accounting for 57.1% of all recorded events. It ranks #887 nationally and #64 in Oklahoma.
497
Recorded events
0
Direct deaths
6
Direct injuries
$2.6M
Property damage
The record
What the Harmon County, Oklahoma severe weather history record shows
Across the archive, Harmon County, Oklahoma severe weather history averages 6.7 recorded events a year. The busiest stretch on record is the 2000s, with 137 events logged in that decade alone. Roughly 111 events fall before 1990 and 386 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.
The costliest is tornado, with $1.4M in reported property damage. In total, 5 distinct hazard types appear in this county archive, each listed with its own dated record below.
By hazard type
Every hazard type recorded in Harmon County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Hail | 284 | 0 | $352K | 4.25 | 1960–2024 |
| Thunderstorm Wind | 169 | 0 | $833K | 86 | 1959–2026 |
| Tornado | 38 | 0 | $1.4M | F2 | 1952–2024 |
| Flash Flood | 4 | 0 | $0 | 0 | 2007–2016 |
| Heavy Rain | 2 | 0 | $0 | 0 | 2007–2008 |
Decade by decade
Harmon County, Oklahoma severe weather history by decade
Reporting practice changed over time — early decades are undercounted, not calmer.
Tornado tracks
Paths crossing this county
40 mapped tornado paths intersect this county: 35 touched down inside it and 5 crossed in from a neighbouring county. This comes from path geometry, not county-tagged reports.
| Date | Scale | Deaths | Injuries | Path length | Origin |
|---|---|---|---|---|---|
| 1955-06-17 | EF3 | 0 | 0 | 16.2 mi | Crossed in |
| 2003-04-15 | EF2 | 0 | 0 | 9.0 mi | Crossed in |
| 1983-05-13 | EF2 | 0 | 0 | 15.0 mi | Touched down here |
| 1981-06-01 | EF2 | 0 | 0 | 5.7 mi | Crossed in |
| 1968-05-06 | EF2 | 0 | 0 | 4.7 mi | Touched down here |
| 1965-05-06 | EF2 | 0 | 2 | 31.3 mi | Touched down here |
| 2024-11-18 | EF1 | 0 | 0 | 3.4 mi | Crossed in |
| 2024-11-18 | EF1 | 0 | 0 | 4.0 mi | Touched down here |
| 1999-04-02 | EF1 | 0 | 0 | 7.5 mi | Touched down here |
| 1986-10-01 | EF1 | 0 | 0 | 10.0 mi | Touched down here |
Significant events
Deadliest events on record in Harmon County
| Date | Type | Location | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Apr 17, 1976 | Tornado | 0 | 2 | $25K | |
| May 7, 1965 | Tornado | 0 | 2 | $250K | |
| Jun 1, 1955 | Tornado | 0 | 2 | $3K |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Large hail combined with strong winds caused damage to several homes and businesses. Many homes had numerous windows broken by the hail. The homes also had significant damage to sides of the house and to roofs. The vinyl siding on the front of the Vinson First Baptist Church was also heavily damaged.
Several sheds/carports lost their roofs. A camper shell and a boat were picked up and flipped. Several roofs were on the ground, porches were missing, trees were down, dumpsters were tipped over, and antennae were snapped.
This is the final segment of the tornado that began in Hardeman County, Texas then moved northeast into extreme western Jackson County, Oklahoma before dissipating in Harmon County. The tornado caused F1 damage during this portion of the path. A farm located 10 miles south of Gould and 1 mile west of Highway 5 had five outbuildings destroyed and damaged the roof to a brick home. The tornado continued northeast and downed power lines along Highway 5 then dissipated approximately 1 mile east of Highway 5 at 1834 CST.
Context
Risk, population and federal disasters
Very Low
FEMA NRI risk rating
2,406
Population (ACS)
$80K
Median home value
20
Federal declarations
| Declared | Incident | Title | Type |
|---|---|---|---|
| Feb 24, 2021 | Severe Ice Storm | SEVERE WINTER STORMS | DR |
| Feb 17, 2021 | Severe Ice Storm | SEVERE WINTER STORM | EM |
| Apr 5, 2020 | Biological | COVID-19 PANDEMIC | DR |
| Mar 13, 2020 | Biological | COVID-19 | EM |
| Jun 25, 2018 | Fire | WILDFIRES | DR |
| Feb 10, 2016 | Severe Storm | SEVERE WINTER STORMS AND FLOODING | DR |
Within the county
Most affected places
- Hollis 141
- Gould 101
Quick answers
Frequently asked
How many severe weather events have been recorded in Harmon County, Oklahoma?
497 events are on record between 1952 and 2026, causing 0 direct deaths and $2.6M in property damage.
What is the most common severe weather hazard in Harmon County?
Hail, with 284 recorded events — 57.1% of everything in the archive for this county.
How many tornadoes have crossed Harmon County?
40 mapped tornado paths intersect the county boundary; 35 of them touched down inside it. This is derived from path geometry, not county-tagged reports.
How many federal disaster declarations cover Harmon County?
20 federal disaster declarations from FEMA include Harmon County, each tied to a specific incident period.
How risky is Harmon County compared with the rest of the country?
FEMA's National Risk Index rates Harmon County as very low risk, placing it in the 10 percentile of its state for expected annual loss.
Where does the Harmon County, Oklahoma severe weather history data come from?
Every figure is drawn from United States federal public-domain records: NOAA/NCEI Storm Events for the event archive, NOAA SPC SVRGIS for mapped tornado paths, FEMA for disaster declarations and risk ratings, and the U.S. Census for population context. Dates are shown in UTC and recent entries may still be revised by NOAA.
Nearby
Neighbouring counties
- Greer County 539
- Harper County 611
- Grant County 676
- Haskell County 445
- Grady County 1,217
- Hughes County 421
Cite this page
“Harmon County, Oklahoma.” Severe Weather History. severeweatherhistory.com/county/oklahoma/harmon-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.