Since the start of 2021, the National Weather Service's Storm Prediction Center has logged 14 days with at least one report of hail one inch or larger at or near Norman, in Cleveland County, Oklahoma, and 5 of those days included hail the size of a golf ball (1.75 inches) or bigger. The largest report was 3.0 inches (tea cup-size). That is roughly 2.5 hail days a year, though reports vary a great deal from season to season.
For the whole county, see Cleveland County hail history.
How many hail days has Norman had each year?
| Year | Hail reports | Days with 1"+ hail | Days with 1.75"+ hail | Largest report |
|---|---|---|---|---|
| 2021 | 2 | 2 | 2 | 3.0 in |
| 2022 | 1 | 1 | 1 | 1.75 in |
| 2023 | 6 | 5 | 1 | 1.75 in |
| 2024 | 1 | 1 | 0 | 1.5 in |
| 2025 | 6 | 3 | 1 | 2.75 in |
| 2026 (through Oct 5) | 2 | 2 | 0 | 1.25 in |
The most recent report at or near Norman was on August 16, 2026, and 2 hail days were logged in the 12 months before Oct 6, 2026.
When does hail happen near Norman?
| Month | Days with 1"+ hail (2021-2026) |
|---|---|
| April | 3 |
| May | 2 |
| June | 4 |
| July | 2 |
| August | 1 |
| September | 1 |
| October | 1 |
Across Oklahoma, the spring months (April through June) account for the largest share of hail days, which is why roof inspections and preparation are often best done before storm season starts.
What were the biggest hail days at Norman?
| Date | Largest report | Places with reports | Reports that day |
|---|---|---|---|
| April 28, 2021 | 3.0 in (tea cup) | Norman | 1 |
| October 10, 2021 | 3.0 in (tea cup) | Norman | 1 |
| May 25, 2025 | 2.75 in (baseball) | Norman | 3 |
| June 8, 2022 | 1.75 in (golf ball) | Norman | 1 |
| April 19, 2023 | 1.75 in (golf ball) | Norman | 1 |
| June 11, 2023 | 1.5 in (ping pong ball) | Norman | 1 |
| September 19, 2023 | 1.5 in (ping pong ball) | Norman | 1 |
| June 25, 2024 | 1.5 in (ping pong ball) | Norman | 1 |
What does hail this size do to a roof?
Hail in this range is large enough to fracture or bruise asphalt shingles, dent metal, and crack tile; damage is commonly widespread where stones fell for more than a moment. Damage depends on more than size: wind-driven hail hits harder, older shingles are more brittle, and metal and tile fail in different ways. See our guides on hail damage and what to check after a storm for how to spot trouble from the ground.
Frequently asked questions
How often does it hail in Norman, Oklahoma? Since 2021 there have been 14 days with reported hail of one inch or larger at or near Norman, or roughly 2.5 a year on average.
What is the largest hail reported at Norman? 3.0 inches (tea cup-size) in this data set, since 2021.
Does a report mean my roof was damaged? No. A report says hail of that size was observed somewhere near that place. Only an inspection can show whether a particular roof was affected.
Where does this data come from? These figures come from preliminary storm reports compiled by the National Weather Service's Storm Prediction Center. Reports come from spotters, emergency managers and the public, and the Center lists hail of one inch or larger. A place with no report may still have had hail, and a report does not mean any specific home was damaged. Places with more people tend to produce more reports.
Source
NWS Storm Prediction Center, daily filtered storm reports, 2021-01-01 to 2026-10-05: <https://www.spc.noaa.gov/climo/reports/> (daily files named YYMMDD_rpts_filtered.csv; preliminary reports, hail of 1 inch or larger).
Get your roof checked
If a storm has passed through Norman and you are not sure what your roof is dealing with, Total Roof Protection OKC can inspect it and document what we find. Call 405-415-5841.