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Washington County, OK hail & severe wind history

182 storm reports on file for Washington County between 2010-04-02 and 2026-05-08 — 85 hail and 97 severe thunderstorm wind. That averages 10.7 reports a year, and Apr is the busiest month.

Hail reports

5 per year

Largest hail

2.5"

tennis ball size · 2019-05-22

Strongest gust

87 mph

76 kt · 2016-04-26

Reported damage

$2.5M

property + crop, as filed

Storm days

distinct days with a report

Busiest year

2018

21 reports

Search every Washington County report

Filter the full record below — pick a year, narrow to a month, or drag the hail-size slider to see only the storms big enough to dent a roof (1" and up is the usual threshold insurers care about).

Event type

Year

Month

Min hail size: any

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182 of 182 reports match.

Reports by month for the current filter — the shape of Washington County’s storm season.

Date	Type	Size / gust	Nearest location	Report detail
2026-05-08 16:05	Hail	1" quarter	4.77 mi SW of Ramona	Hail up to quarter size covered the ground.
2026-05-08 16:10	Wind	52 kt 60 mph	4.77 mi SW of Ramona	Strong thunderstorm wind snapped large tree limbs.
2026-04-28 11:11	Hail	1" quarter	2 mi SE of Bartlesville	No narrative filed · source: Public
2026-04-28 11:26	Hail	1.25" half dollar	2.14 mi SE of Bartlesville	Half dollar size hail damaged homes and vehicles.
2026-04-28 11:27	Hail	1" quarter	3 mi SE of Bartlesville	No narrative filed · source: Public
2026-04-28 11:30	Hail	1.25" half dollar	1 mi ESE of Dewey	Half dollar size hail damaged homes and vehicles.
2026-04-15 13:25	Hail	1" quarter	0 mi N of Ochelata	No narrative filed · source: Social Media
2026-04-15 15:32	Hail	1.75" golf ball	1.92 mi ESE of Bartlesville	Golf ball size hail damaged homes, businesses, and vehicles.
2026-04-15 15:32	Hail	1" quarter	0 mi N of Bartlesville	No narrative filed · source: Amateur Radio
2026-04-15 15:34	Hail	2" hen egg	4.89 mi ESE of Bartlesville	Hail up to two inches in diameter damaged homes and vehicles.
2026-04-15 15:34	Hail	1.5" ping pong	2.9 mi SE of Hi Way Arpt	Ping pong ball size hail damaged homes and vehicles.
2025-06-17 20:20	Wind	52 kt 60 mph	10 mi S of Bartlesville	Thunderstorm wind gusts were estimated to 60 mph.
2025-06-17 20:27	Hail	1.75" golf ball	1.01 mi W of Copan	Golf ball size hail damaged homes and vehicles.
2025-06-17 23:28	Wind	56 kt 64 mph	1.07 mi E of Bartlesville	Strong thunderstorm wind blew down power lines.
2025-06-17 23:30	Wind	65 kt 75 mph	.33 mi SW of Dewey	Strong thunderstorm wind blew down a large tree onto a house and privacy fence.
2025-06-17 23:34	Wind	52 kt 60 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet station near Copan measured thunderstorm wind gusts to 60 mph.
2025-06-17 23:35	Wind	56 kt 64 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet station near Copan measured thunderstorm wind gusts from 60 mph to 64 mph for over five minutes.
2025-05-24 04:27	Wind	70 kt 81 mph	1.24 mi ESE of Bartlesville	Strong thunderstorm wind blew down trees, blew portions of a roof from a building, and blew down power lines.
2025-05-19 15:44	Wind	56 kt 64 mph	2 mi SE of Bartlesville	Strong thunderstorm wind snapped numerous large tree limbs.
2025-05-19 15:45	Hail	1" quarter	8 mi SE of Dewey	No narrative filed · source: Social Media
2025-05-19 15:55	Wind	54 kt 62 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet station near Copan measured 62 mph thunderstorm wind gusts.
2025-05-17 23:24	Hail	0.75" penny	3 mi NW of Copan	No narrative filed · source: Storm Chaser
2025-04-29 05:35	Hail	1.25" half dollar	3 mi E of Bartlesville	Half dollar size hail damaged homes and vehicles.
2024-05-15 20:39	Hail	0.75" penny	0 mi N of Ochelata	No narrative filed · source: Trained Spotter
2024-05-15 21:00	Hail	1.75" golf ball	2.3 mi W of Vera	Golf ball size hail damaged vehicles.
2024-05-15 21:03	Hail	1" quarter	0 mi N of Vera	No narrative filed · source: Fire Department/Rescue
2024-03-13 20:05	Hail	1" quarter	7 mi ENE of Ochelata	No narrative filed · source: Public
2024-02-22 00:24	Hail	0.75" penny	4 mi E of Bartlesville	No narrative filed · source: Public
2024-02-22 00:26	Hail	0.75" penny	3.63 mi SSE of Dewey	No narrative filed · source: Public
2023-07-17 13:35	Hail	1" quarter	3 mi WNW of Dewey	No narrative filed · source: Trained Spotter
2023-07-17 13:40	Hail	1.5" ping pong	1.01 mi ESE of Bartlesville	Ping pong ball size hail damaged vehicles and homes in Bartlesville.
2023-07-17 13:44	Hail	1" quarter	2 mi SE of Bartlesville	No narrative filed · source: Public
2023-05-11 23:37	Hail	1" quarter	3 mi NE of Ochelata	No narrative filed · source: Public
2022-08-16 18:09	Wind	56 kt 64 mph	3.93 mi WNW of Owen	Strong thunderstorm wind, estimated to be about 65 mph, snapped large tree limbs.
2021-05-27 14:07	Hail	0.88" nickel	0 mi N of Ochelata	No narrative filed · source: Emergency Manager
2021-05-27 14:15	Wind	61 kt 70 mph	0 mi N of Vera	Thunderstorm wind gusts were estimated to 70 mph.
2021-03-17 04:06	Hail	0.75" penny	1.31 mi ESE of Bartlesville	No narrative filed · source: Public
2020-11-24 19:30	Hail	1.75" golf ball	0 mi N of Bartlesville	Golf ball size hail damaged vehicles, businesses, and homes.
2020-11-24 19:35	Hail	1.75" golf ball	.2 mi E of Copan	Golf ball size hail damaged vehicles and homes.
2020-08-15 18:53	Wind	65 kt 75 mph	1.18 mi ENE of Bartlesville	Strong thunderstorm wind blew down trees and power lines.
2020-08-15 19:10	Hail	1" quarter	1.79 mi NNE of Oglesby	No narrative filed · source: Emergency Manager
2020-08-15 19:27	Hail	1" quarter	3 mi E of Ochelata	No narrative filed · source: Trained Spotter
2020-04-28 16:30	Hail	1" quarter	1 mi N of Dewey	No narrative filed · source: Trained Spotter
2020-04-28 16:30	Hail	0.75" penny	5 mi N of Ochelata	No narrative filed · source: Public
2020-04-28 16:30	Wind	61 kt 70 mph	1 mi N of Dewey	Thunderstorm wind gusts were estimated to 70 mph.
2020-04-28 16:39	Wind	52 kt 60 mph	0 mi N of Ramona	Thunderstorm wind gusts were estimated to 60 mph.
2020-04-27 11:45	Hail	0.75" penny	4 mi SSE of Dewey	No narrative filed · source: Trained Spotter
2020-04-24 15:43	Hail	1" quarter	3.41 mi ESE of Bartlesville	No narrative filed · source: Broadcast Media
2020-04-24 15:58	Hail	0.75" penny	5.27 mi SSE of Dewey	No narrative filed · source: Emergency Manager
2019-12-28 14:28	Wind	61 kt 70 mph	1.11 mi SW of Copan	Strong thunderstorm wind snapped several power poles along Highway 10.
2019-10-20 21:00	Wind	52 kt 60 mph	2.95 mi ESE of Ochelata	Thunderstorm wind gusts were estimated to 60 mph at CR 3000 and Highway 75.
2019-07-21 21:15	Wind	65 kt 75 mph	2.1 mi SSE of Hi Way Arpt	Strong thunderstorm wind blew down trees in the Bartlesville area.
2019-07-21 21:20	Wind	52 kt 60 mph	1.27 mi ESE of Bartlesville	Strong thunderstorm wind snapped large tree limbs on Johnstone Avenue near downtown.
2019-07-21 21:23	Wind	61 kt 70 mph	.4 mi ESE of Bartlesville	Strong thunderstorm wind blew down a tree onto a house, causing significant damage.
2019-07-21 21:25	Wind	61 kt 70 mph	1.8 mi SE of Bartlesville	Strong thunderstorm wind blew down a tree onto a car near the Bartlesville High School.
2019-07-21 21:38	Wind	65 kt 75 mph	1.51 mi ESE of Bartlesville	Strong thunderstorm wind blew down trees across the city.
2019-07-05 15:20	Wind	56 kt 64 mph	.42 mi NNE of Bartlesville	Strong thunderstorm wind blew down a small tree and a privacy fence at a home on the northwest side of town.
2019-05-22 17:13	Hail	2.5" tennis ball	3 mi W of Vera	No narrative filed · source: Storm Chaser
2019-05-22 17:51	Hail	0.75" penny	.96 mi ESE of Bartlesville	No narrative filed · source: Emergency Manager
2019-04-17 22:01	Hail	1" quarter	1.18 mi ESE of Bartlesville	No narrative filed · source: Emergency Manager
2019-04-17 22:04	Wind	61 kt 70 mph	.23 mi E of Bartlesville	Strong thunderstorm wind blew down a tree.
2019-04-17 22:05	Wind	56 kt 64 mph	1.35 mi ENE of Bartlesville	Strong thunderstorm wind caused significant damage to park equipment, and damaged gutters and the roofs of homes.
2019-04-17 22:05	Wind	61 kt 70 mph	4 mi SSE of Dewey	Strong thunderstorm wind snapped power poles and large tree limbs.
2019-04-17 22:10	Wind	51 kt 59 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet station near Copan measured 59 mph thunderstorm wind gusts.
2018-08-16 16:00	Wind	52 kt 60 mph	2 mi S of Copan	Thunderstorm wind gusts were estimated to 60 mph south of Copan.
2018-07-30 14:28	Wind	56 kt 64 mph	0 mi N of Ochelata	Strong thunderstorm wind blew down large tree limbs, some of which fell onto a house damaging the porch and roof.
2018-07-30 14:34	Wind	61 kt 70 mph	2 mi S of Ramona	Strong thunderstorm wind blew a tractor trailer off Highway 75.
2018-07-30 14:37	Wind	65 kt 75 mph	0 mi N of Ramona	Strong thunderstorm wind damaged the roof at the high school and blew down several power poles.
2018-07-30 14:42	Wind	65 kt 75 mph	0 mi N of Ramona	Thunderstorm wind gusts were estimated to 75 mph.
2018-07-06 12:55	Wind	65 kt 75 mph	1.11 mi W of Oglesby	Strong thunderstorm wind blew down trees near Oglesby.
2018-06-26 14:00	Wind	61 kt 70 mph	.4 mi SW of Dewey	Strong thunderstorm wind snapped two power poles.
2018-06-12 03:30	Wind	65 kt 75 mph	.85 mi SSE of Bartlesville	Strong thunderstorm wind blew down trees, damaged the roofs of homes, and snapped power poles in Bartlesville. Large tree limbs and downed trees blocked some roads in town.
2018-06-12 03:30	Wind	61 kt 70 mph	.9 mi ESE of Bartlesville	Strong thunderstorm wind damaged a gas station in downtown Bartlesville.
2018-06-12 03:34	Wind	52 kt 60 mph	1.38 mi ESE of Bartlesville	Strong thunderstorm wind blew down large tree limbs.
2018-06-12 03:42	Wind	52 kt 60 mph	2 mi E of Ochelata	Thunderstorm wind gusts were estimated to 60 mph.
2018-05-31 01:50	Wind	61 kt 70 mph	.3 mi SE of Copan	Strong thunderstorm wind blew down a large tree.
2018-05-30 22:35	Wind	56 kt 64 mph	0 mi N of Copan	Strong thunderstorm wind blew shingles off the roof of a house and damaged the siding.
2018-05-19 14:40	Wind	61 kt 70 mph	.94 mi E of Bartlesville	Strong thunderstorm wind blew down billboards.
2018-05-19 14:40	Hail	1.75" golf ball	1 mi E of Bartlesville	No narrative filed · source: Emergency Manager
2018-05-19 14:48	Wind	61 kt 70 mph	4 mi W of Copan	Strong thunderstorm wind blew the awnings off several campers.
2018-05-19 14:55	Wind	52 kt 60 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet station near Copan measured 60 mph thunderstorm wind gusts.
2018-05-19 17:38	Hail	1" quarter	1.44 mi E of Bartlesville	No narrative filed · source: Emergency Manager
2018-05-14 22:10	Wind	65 kt 75 mph	.31 mi SE of Copan	Strong thunderstorm wind damaged road signs, damaged the roof of a church, and blew down power lines.
2018-05-14 22:10	Wind	51 kt 59 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet Station near Copan measured 59 mph thunderstorm wind gusts.
2018-04-13 14:38	Hail	1" quarter	1 mi SE of Ochelata	No narrative filed · source: Emergency Manager
2017-10-21 19:59	Wind	52 kt 60 mph	.39 mi SW of Dewey	Strong thunderstorm wind gusts were estimated to 60 mph.
2017-08-10 18:19	Wind	61 kt 70 mph	1 mi SSE of Copan	Strong thunderstorm wind gusts were estimated to 70 mph.
2017-08-10 18:25	Wind	63 kt 72 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet station near Copan measured 73 mph thunderstorm wind gusts.
2017-08-10 18:30	Wind	65 kt 75 mph	2 mi E of Copan	Strong thunderstorm wind severely damaged the roofs of three homes east of Copan.
2017-08-10 18:30	Wind	61 kt 70 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet station near Copan measured 70 mph thunderstorm wind gusts.
2017-08-10 18:32	Wind	61 kt 70 mph	1.03 mi SE of Copan	Strong thunderstorm wind was estimated to 70 mph.
2017-08-10 18:35	Wind	56 kt 64 mph	2.01 mi WNW of Dewey Wayside Arpt	Strong thunderstorm wind blew down power lines and snapped large tree limbs near the W1100 Road and Highway 75 intersection.
2017-08-10 18:35	Wind	61 kt 70 mph	.39 mi SW of Dewey	Strong thunderstorm wind severely damaged a large metal barn.
2017-08-10 18:36	Wind	61 kt 70 mph	3.87 mi E of Copan	Strong thunderstorm wind was estimated to 70 mph.
2017-08-10 18:36	Wind	61 kt 70 mph	.83 mi E of Copan	Strong thunderstorm wind blew down trees and power lines along Highway 10 and Highway 75.
2017-08-10 18:40	Wind	56 kt 64 mph	1.19 mi ENE of Dewey Wayside Arpt	Strong thunderstorm wind blew down power lines near W1100 Road and N 4000 Road.
2017-08-10 19:01	Wind	61 kt 70 mph	5.66 mi SSE of Dewey	Strong thunderstorm wind blew down trees across Highway 60 near the N 4000 Road.
2017-08-04 04:30	Hail	0.88" nickel	1.1 mi E of Bartlesville	No narrative filed · source: Public
2017-06-15 20:20	Wind	65 kt 75 mph	1.01 mi E of Bartlesville	Strong thunderstorm wind blew down trees.
2017-05-27 17:51	Hail	1.25" half dollar	1 mi S of (Bvo)Bartlesville Ar	No narrative filed · source: Trained Spotter
2017-04-04 18:12	Hail	1" quarter	.9 mi SE of Owen	No narrative filed · source: Amateur Radio
2017-03-06 21:15	Hail	1" quarter	1.01 mi E of Bartlesville	No narrative filed · source: Emergency Manager
2017-03-06 21:19	Hail	0.88" nickel	2 mi ENE of Bartlesville	No narrative filed · source: Trained Spotter
2017-03-06 21:20	Wind	56 kt 64 mph	2 mi NNE of Dewey	Strong thunderstorm wind blew down a tree and several sections of a privacy fence.
2017-02-28 23:10	Hail	1" quarter	3 mi N of Copan	No narrative filed · source: Broadcast Media
2016-05-09 21:02	Hail	1" quarter	1.44 mi ESE of Bartlesville	No narrative filed · source: Storm Chaser
2016-04-26 21:35	Wind	76 kt 87 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet station near Copan measured 88 mph thunderstorm wind gusts. The roofs of several homes were damaged and trees were uprooted in this area.
2016-04-10 18:59	Hail	1" quarter	3 mi NE of Copan	No narrative filed · source: County Official
2016-04-10 19:37	Hail	1" quarter	1.35 mi E of Bartlesville	No narrative filed · source: Public
2016-04-10 19:40	Hail	1.75" golf ball	.75 mi SE of Hi Way Arpt	No narrative filed · source: Emergency Manager
2016-04-10 19:44	Hail	1" quarter	.98 mi SSW of Dewey	No narrative filed · source: Post Office
2016-04-10 19:47	Hail	0.88" nickel	.41 mi SW of Dewey	No narrative filed · source: Trained Spotter
2016-03-30 16:30	Hail	1" quarter	.37 mi SE of Copan	No narrative filed · source: Broadcast Media
2015-11-17 03:35	Wind	55 kt 63 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet station near Copan measured 63 mph thunderstorm wind gusts.
2015-11-05 11:54	Hail	1" quarter	1.28 mi E of Bartlesville	No narrative filed · source: Public
2015-11-05 12:05	Hail	0.88" nickel	.42 mi SW of Dewey	No narrative filed · source: Public
2015-08-27 09:20	Hail	1" quarter	.47 mi SW of Dewey	No narrative filed · source: Law Enforcement
2015-05-16 21:45	Wind	52 kt 60 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet station near Copan measured 60 mph thunderstorm wind gusts.
2015-05-16 21:45	Wind	56 kt 64 mph	0 mi N of Vera	Thunderstorm wind gusts were estimated to 65 mph.
2015-04-08 13:37	Hail	0.75" penny	0 mi N of Bartlesville	No narrative filed · source: Public
2015-04-02 19:24	Hail	1" quarter	.31 mi SE of Copan	No narrative filed · source: Broadcast Media
2015-04-01 02:40	Hail	1.25" half dollar	8 mi ESE of Bartlesville	No narrative filed · source: Public
2014-10-01 13:45	Hail	1.75" golf ball	.35 mi ESE of Copan	No narrative filed · source: Emergency Manager
2014-10-01 13:50	Wind	52 kt 60 mph	1.28 mi SSE of Dewey Wayside Arpt	Strong thunderstorm wind blew down large tree limbs.
2014-09-01 20:25	Wind	70 kt 81 mph	2.52 mi E of Bartlesville	Emergency management personnel measured thunderstorm wind gusts to 80 mph. A hospital, a school, and an apartment complex sustained major damage to their roofs due to the strong wind. Nearly 600 homes were also damaged by the wind, about 100 of which had major damage. Numerous trees and large tree limbs were blown dow…
2014-09-01 20:45	Wind	61 kt 70 mph	6 mi E of Dewey	Strong thunderstorm wind blew shingles from the roofs of homes and peeled off the roof of a barn.
2014-06-05 07:12	Wind	52 kt 60 mph	0 mi N of Bartlesville	Strong thunderstorm wind blew down large tree limbs.
2014-05-09 03:00	Hail	1" quarter	2 mi N of Bartlesville	No narrative filed · source: Trained Spotter
2014-04-13 15:15	Wind	52 kt 60 mph	6 mi N of Copan	Thunderstorm wind gusted to around 60 mph.
2013-07-23 21:50	Wind	52 kt 60 mph	1.26 mi E of Bartlesville	Strong thunderstorm wind snapped large tree limbs.
2013-07-16 16:40	Wind	61 kt 70 mph	0 mi N of Vera	Strong thunderstorm wind damaged the roof of a fire station, blew down power lines, and damaged trees.
2013-06-15 13:10	Wind	56 kt 64 mph	0 mi N of Bartlesville	Strong thunderstorm wind blew down large tree limbs.
2013-05-31 17:39	Wind	65 kt 75 mph	5.92 mi ESE of Owen	Strong thunderstorm wind, likely associated with the tornadic storm's rear flank downdraft, snapped large tree limbs.
2013-05-29 19:38	Wind	65 kt 75 mph	1.47 mi ESE of Bartlesville	A tree was blown down by strong thunderstorm wind.
2013-05-20 15:59	Wind	52 kt 60 mph	.32 mi SE of Copan	Strong thunderstorm wind blew down large tree limbs.
2013-05-19 21:20	Hail	1" quarter	5 mi NW of Copan	No narrative filed · source: Public
2013-01-29 08:30	Wind	61 kt 70 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet station near Copan measured 70 mph thunderstorm wind gusts.
2012-09-07 14:30	Wind	61 kt 70 mph	0 mi N of Vera	Strong thunderstorm wind blew portions of a roof off of a home.
2012-07-08 18:15	Wind	61 kt 70 mph	0 mi N of Ochelata	Strong thunderstorm wind damaged the roof of a barn, removed shingles from the roof of a home, blew down a tree, and destroyed a shed.
2012-06-04 00:00	Hail	0.75" penny	1.3 mi ESE of Bartlesville	No narrative filed · source: Public
2012-05-30 22:29	Hail	0.88" nickel	0 mi N of Bartlesville	No narrative filed · source: Trained Spotter
2012-05-30 22:30	Wind	70 kt 81 mph	1.45 mi E of Bartlesville	Strong thunderstorm wind blew down large trees onto a road.
2012-05-30 22:32	Wind	70 kt 81 mph	.42 mi SW of Dewey	Strong thunderstorm wind blew down large trees.
2012-05-30 22:40	Wind	52 kt 60 mph	0 mi N of Ochelata	Strong thunderstorm wind estimated to around 60 mph snapped large tree limbs.
2012-05-30 22:40	Hail	1" quarter	0 mi N of Ochelata	No narrative filed · source: Public
2012-04-29 21:28	Wind	65 kt 75 mph	1 mi E of Copan	Strong thunderstorm wind blew down a large tree at 3990 RD and 410 RD east of Copan.
2012-04-15 04:54	Wind	56 kt 64 mph	2.55 mi ENE of Copan	The Oklahoma Mesonet station near Copan measured 65 mph thunderstorm wind gusts.
2012-04-09 20:10	Hail	1" quarter	0 mi N of Ochelata	No narrative filed · source: Public
2012-04-09 20:30	Hail	1.75" golf ball	2 mi W of Ramona	No narrative filed · source: Public
2012-04-09 20:37	Hail	1.75" golf ball	3 mi S of Ramona	No narrative filed · source: Broadcast Media
2012-04-07 09:30	Hail	0.75" penny	1.43 mi E of Bartlesville	No narrative filed · source: Public
2012-02-28 22:24	Wind	61 kt 70 mph	2 mi N of Dewey	Strong thunderstorm wind overturned a travel trailer and caused extensive damage to a carport.
2012-02-28 22:25	Wind	61 kt 70 mph	1.57 mi E of Bartlesville	Strong thunderstorm wind blew down large tree limbs and damaged large signs.
2012-02-28 22:30	Wind	61 kt 70 mph	3.49 mi NE of Ochelata	A tractor trailer truck was blown off the roadway and overturned, injuring the driver.
2011-06-18 20:10	Hail	1.75" golf ball	2 mi NW of Copan	No narrative filed · source: Trained Spotter
2011-06-16 13:00	Wind	52 kt 60 mph	0 mi N of Copan	Strong thunderstorm wind blew down large tree limbs.
2011-05-24 18:35	Wind	65 kt 75 mph	0 mi E of Bartlesville	Strong thunderstorm wind gusts damaged a church near the intersection of SW Frank Phillips Boulevard and S Virginia Avenue as well as a hospital near the intersection of E Frank Phillips Boulevard and Highway 75.
2011-05-11 15:30	Wind	61 kt 70 mph	0 mi N of Ochelata	Emergency Management personnel reported trees and power lines blown down by strong thunderstorm winds.
2011-05-11 16:45	Wind	56 kt 64 mph	.91 mi ESE of Bartlesville	Strong thunderstorm wind blew down trees and large limbs across the city.
2011-04-24 18:30	Hail	1" quarter	0 mi N of Ramona	No narrative filed · source: Public
2011-04-24 18:51	Hail	0.75" penny	3 mi SE of Bartlesville	No narrative filed · source: Trained Spotter
2011-04-24 19:00	Hail	0.88" nickel	.39 mi WSW of Dewey	No narrative filed · source: Public
2011-04-24 19:00	Hail	0.88" nickel	0 mi N of Copan	No narrative filed · source: Public
2011-04-14 16:55	Hail	1" quarter	.74 mi E of Bartlesville	No narrative filed · source: Broadcast Media
2011-04-14 16:58	Hail	1.75" golf ball	1.38 mi E of Bartlesville	No narrative filed · source: Trained Spotter
2011-04-09 00:35	Hail	1.75" golf ball	4 mi S of Ramona	No narrative filed · source: Trained Spotter
2011-04-09 00:37	Hail	1.75" golf ball	0 mi N of Vera	No narrative filed · source: Broadcast Media
2011-03-19 10:36	Hail	1" quarter	0 mi N of Bartlesville	No narrative filed · source: Trained Spotter
2011-03-19 10:46	Hail	0.88" nickel	4 mi SW of Dewey	No narrative filed · source: Trained Spotter
2010-09-15 21:15	Hail	0.75" penny	.5 mi W of Bartlesville	No narrative filed · source: Emergency Manager
2010-06-23 21:15	Wind	52 kt 60 mph	0 mi N of Copan	Strong thunderstorm wind blew down several large trees.
2010-06-23 21:34	Wind	52 kt 60 mph	1 mi NW of Bartlesville	No narrative filed · source: ASOS
2010-06-23 21:35	Wind	52 kt 60 mph	.35 mi WSW of Dewey	Strong thunderstorm wind blew down several large trees.
2010-06-23 21:35	Wind	61 kt 70 mph	2 mi ENE of Copan	No narrative filed · source: Mesonet
2010-06-23 21:40	Wind	52 kt 60 mph	.75 mi ESE of Bartlesville	Strong thunderstorm wind blew down several large trees.
2010-06-23 21:55	Wind	52 kt 60 mph	7 mi ENE of Ochelata	Strong thunderstorm wind blew down several large trees and damaged the roof of a home near Ogelsby.
2010-05-10 17:48	Hail	0.75" penny	0 mi N of Dewey	No narrative filed · source: County Official
2010-04-06 22:25	Wind	52 kt 60 mph	0 mi N of Ochelata	Emergency Management estimated 60 mile per hour thunderstorm wind gusts.
2010-04-04 23:17	Hail	0.88" nickel	0 mi N of Dewey	No narrative filed · source: Emergency Manager
2010-04-04 23:17	Wind	52 kt 60 mph	0 mi N of Dewey	Strong thunderstorm wind blew down large tree limbs.
2010-04-04 23:18	Hail	1" quarter	0 mi N of Dewey	A storm chaser with KJRH reported quarter size hail.
2010-04-02 07:05	Wind	52 kt 60 mph	.5 mi N of Dewey	Strong thunderstorm wind damaged a barn and other outbuildings north of Dewey.

Worst storm days in Washington County

Date	Reports that day	Largest hail	Peak gust
2017-08-10	11	—	75 mph
2025-06-17	6	1.75" (golf ball)	75 mph
2010-06-23	6	—	70 mph
2026-04-15	5	2" (hen egg)	—
2018-05-19	5	1.75" (golf ball)	70 mph
2016-04-10	5	1.75" (golf ball)	—
2019-04-17	5	1" (quarter)	70 mph
2012-05-30	5	1" (quarter)	81 mph
2019-07-21	5	—	75 mph
2026-04-28	4	1.25" (half dollar)	—

Reports by year

Report counts are driven partly by how many people were around to report a storm, so recent years tend to look busier than the early 2010s. Treat the trend as a reporting trend, not purely a weather trend.

Notable large-hail events (2" and up)

Date	Size	Near	What was reported
2026-04-15	2" hen egg	4.89 mi ESE of Bartlesville	Hail up to two inches in diameter damaged homes and vehicles.
2019-05-22	2.5" tennis ball	3 mi W of Vera	No narrative filed

When does hail hit Washington County?

Across 17 years of records, April produced the most reports (53), followed by the months either side of it. Monthly totals:

Month	Reports	Share
January	1	0.5%
February	6	3.3%
March	8	4.4%
April	53	29.1%
May	42	23.1%
June	23	12.6%
July	17	9.3%
August	18	9.9%
September	4	2.2%
October	4	2.2%
November	5	2.7%
December	1	0.5%

Nearby counties in Oklahoma

Oklahoma County (921)Tulsa County (828)Cleveland County (677)Comanche County (502)Texas County (435)Grady County (425)Canadian County (366)Garfield County (364)Beaver County (358)Le Flore County (357)Caddo County (351)Osage County (351)

See all 77 Oklahoma counties →

About these numbers

Every row above is a report filed with the National Weather Service and archived in the NOAA NCEI Storm Events Database (FIPS 40147). Reports are eyewitness, trained-spotter and damage-survey observations, so they cluster near roads and towns and miss storms over empty country. Hail sizes are estimates. Damage figures are preliminary as filed and are never revised in this archive. Use this page for background, not for an insurance claim, a legal filing, or a roof assessment — for those, get the official record from NOAA directly.