284
Recorded events
0
Direct deaths
0
Direct injuries
$3.7M
Property damage
Hail in Washington County, Oklahoma: 284 recorded events between 1957 and 2026. The strongest on record measured 4.5. That places the county #348 nationally and #53 statewide for this hazard.
Decade by decade
Hail in Washington County, Oklahoma: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for hail in Washington County is the 2000s, when 90 of the county's 284 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.
Within the Washington County archive, hail makes up 45.4% of all recorded severe weather across 7 hazard types. Nationally the county sits at #348 for this hazard and #53 within Oklahoma, putting it in the 88.7 percentile of all U.S. counties.
Seasonality
Events by month
Apr is the peak month for hail in Washington County with 88 recorded events, while Jan is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Apr 28, 2026 | DEWEY | 1.25 | $25K |
| Apr 28, 2026 | BARTLESVILLE | 1 | $0 |
| Apr 28, 2026 | BARTLESVILLE | 1.25 | $30K |
| Apr 28, 2026 | BARTLESVILLE | 1 | $0 |
| Apr 15, 2026 | HI WAY ARPT | 1.5 | $30K |
| Apr 15, 2026 | BARTLESVILLE | 2 | $100K |
| Apr 15, 2026 | BARTLESVILLE | 1.75 | $150K |
| Apr 15, 2026 | BARTLESVILLE | 1 | $0 |
| Apr 15, 2026 | OCHELATA | 1 | $0 |
| Jun 18, 2025 | COPAN | 1.75 | $20K |
Other hazards here
More from Washington County
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Severe thunderstorms moved across extreme northeast Oklahoma during the evening of June 25th. Strong thunderstorm winds downed power lines just east of Wann, and large tree limbs were blown down 3 miles northeast of Bowring. Dime size hail fell in downtown Bartlesville.
An isolated severe thunderstorm developed in Washington County of northeast Oklahoma during the early morning of July 17th. Dime-size hail fell just north of Dewey, and strong thunderstorm winds blew out a window at an Arby's Restaurant on the northeast side of Bartlesville.
Quick answers
Frequently asked
How many hail events are on record in Washington County, Oklahoma?
284 hail events are recorded in Washington County between 1957 and 2026, causing 0 direct deaths.
What is the strongest hail recorded in Washington County?
The strongest hail on record in Washington County measured 4.5.
Where does the hail data for Washington County come from?
All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.
Cite this page
“Hail in Washington County, Oklahoma.” Severe Weather History. severeweatherhistory.com/county/oklahoma/washington-county/hail/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.