Cleveland County, Oklahoma: hail history 2014–2026
The National Weather Service logged 365 hail reports in Cleveland County between January 2014 and June 2026. On 59 days the largest stone was an inch or bigger, the size NWS calls severe. The biggest was 3.41 inches, about the size of a teacup, reported on May 4, 2020 near Lake Thunderbird Dam. May is the peak month (31% of reports).
- 365hail reports, 2014–2026
- 59days with hail of 1 in or more
- 20days with hail of 1.75 in or more (golf ball)
- 3.41 inlargest stone reported
Has severe hail hit Cleveland County since my roof was put on?
Our record covers 2014–2026 only. A roof older than 2014 has also been through hail we do not show here. A day counts when at least one report of 1 inch or larger was filed in the county, so it does not mean your own roof was hit; an inspection is the only way to know.
Year by year
| Year | Reports | Days 1 in+ | Days 1.75 in+ | Largest |
|---|---|---|---|---|
| 2014 | 7 | 2 | 1 | 2 in |
| 2015 | 16 | 4 | 2 | 2.5 in |
| 2016 | 13 | 6 | 2 | 1.75 in |
| 2017 | 17 | 5 | 1 | 1.75 in |
| 2018 | 6 | 2 | 0 | 1 in |
| 2019 | 19 | 6 | 2 | 2 in |
| 2020 | 43 | 4 | 2 | 3.41 in |
| 2021 | 17 | 3 | 2 | 3 in |
| 2022 | 11 | 3 | 1 | 1.75 in |
| 2023 | 92 | 7 | 1 | 2.25 in |
| 2024 | 33 | 3 | 1 | 2 in |
| 2025 | 71 | 10 | 4 | 2.75 in |
| 2026 (Jan–Jun) | 20 | 4 | 1 | 2.75 in |
When hail hits: reports by month
| Jan | 1 |
|---|---|
| Feb | 3 |
| Mar | 17 |
| Apr | 110 |
| May | 114 |
| Jun | 45 |
| Jul | 6 |
| Aug | 27 |
| Sep | 25 |
| Oct | 15 |
| Nov | 2 |
| Dec | 0 |
May alone has 31% of the 365 reports. Book an inspection before the first month with reports so crews still have dates.
Where hail of 1 inch or more was reported in Cleveland County
- 1 to 1.74 in
- 1.75 to 2.74 in (golf ball to tennis ball)
- 2.75 in and up (baseball)
295 reports of 1 inch or larger have coordinates; the map shows the 140 largest. Each dot is a place a spotter, a trained observer or the public reported hail, not a measured storm path.
Sources: NOAA Storm Events (report locations) · US Census cartographic boundary (county outline, public domain)The ten biggest hail days
| Date | Largest hail | Reports | Where |
|---|---|---|---|
| May 4, 2020 | 3.41 in, a teacup | 19 | Lake Thunderbird Dam |
| April 28, 2021 | 3 in, a teacup | 11 | Norman |
| October 10, 2021 | 3 in, a teacup | 5 | Norman |
| May 25, 2025 | 2.75 in, a baseball | 30 | (Oun)Norman Westheimer Arpt |
| May 8, 2026 | 2.75 in, a baseball | 13 | Lake Thunderbird Dam |
| May 8, 2015 | 2.5 in, a tennis ball | 8 | (Oun)Norman Westheimer Arpt |
| April 19, 2023 | 2.25 in, a hen egg | 57 | Stanley Draper Lake Dam |
| August 31, 2020 | 2 in, a hen egg | 22 | Noble |
| September 24, 2024 | 2 in, a hen egg | 16 | Lake Thunderbird Dam |
| April 28, 2025 | 2 in, a hen egg | 11 | Noble |
“A couple of supercells produced very large hail in central Oklahoma during the afternoon and evening of the 4th. Other storms later produced large hail and damaging wind gusts across portion of southern Oklahoma. One tornado was observed in southeast Cleveland County east of Lexington.”
National Weather Service report, May 4, 2020
“Several tornadoes were reported, along with hail larger than baseballs that impacted Norman, OK for the second time in six months, leading to millions of dollars in damages once again to homes, cars, and businesses.”
National Weather Service report, October 10, 2021
“A persistent plume of strong instability, steep mid-level lapse rates, and sufficient deep-layer wind shear supported the development of transiently organized convection, including a few supercells during the early evening hours.”
National Weather Service report, May 25, 2025
Tornadoes in Cleveland County
NOAA lists 42 tornadoes in the county in 2014–2026; the 8 strongest are below. Tornadoes tear off whole roof sections, which is a different repair from hail bruising.
| Date | Rating | Path length | Width | Near |
|---|---|---|---|---|
| November 3, 2024 | EF3 | 1 mi | 400 yd | Moore |
| February 26, 2023 | EF2 | 20 mi | 900 yd | Norman · 0 deaths, 12 injured |
| March 25, 2015 | EF2 | 11.21 mi | 50 yd | Moore · 0 deaths, 7 injured |
| April 19, 2023 | EF2 | 5.4 mi | 700 yd | Slaughterville |
| April 19, 2023 | EF2 | 3.5 mi | 2200 yd | Lake Thunderbird Dam |
| May 2, 2018 | EF1 | 8 mi | 400 yd | Norman |
| October 26, 2021 | EF1 | 6.6 mi | 50 yd | Norman |
| May 21, 2019 | EF1 | 4.1 mi | 50 yd | Norman |
Strongest thunderstorm gusts
| Date | Gust | Near |
|---|---|---|
| May 6, 2024 | 105 mph | Moore |
| October 26, 2021 | 90 mph | Lake Thunderbird Dam |
| May 19, 2018 | 85 mph | Lexington |
| July 11, 2020 | 85 mph | Lexington |
| June 15, 2023 | 84 mph | (Oun)Norman Westheimer Arpt |
| July 11, 2020 | 81 mph | (Oun)Norman Westheimer Arpt |
Gust speeds are measured or estimated; reports in knots are converted to mph.
What to do with this
- Find the year your roof went on (closing papers, permit, a past invoice). Use the box above to see how many severe hail days it has lived through.
- After any day on the table, photograph the roof and keep the date: insurers ask for it.
- Get a free inspection from a local roofer: Norman, Moore.
Cleveland County cities we cover
Other Oklahoma counties
- Oklahoma County (427 reports)
- Tulsa County (340 reports)
- Comanche County (230 reports)
All counties: hail history hub · live hail map. Data: NOAA Storm Events Database, 2014–2026, county level, public domain. The 2026 row is partial: NOAA's file ran to June 2026 when we loaded it on 2026-10-06. Reports are filed by spotters, trained observers and the public; one storm can produce many reports. Not a forecast, not legal advice.