NOAA Storm Events files dated 2026-09-18. Events are added by the National Weather Service about two to three months after they happen, so the current year is always incomplete.
What The Hail Record Shows
Key insight, October 2, 2026: hail season in San Antonio is March, April and May. Those three months hold 94% of all Bexar County hail reports since 2020. The county averages about 6 hail days a year, and the largest stone in the record fell on April 28, 2021 at Hondo, 6.42 inches across. In 2025 Bexar County had 6 hail days with stones up to 3 inches, and the City issued 7,117 re-roof permits that year, the most in the permit record.
Bexar County Hail By Year
A report is one observation sent to the National Weather Service; one storm crossing the county produces many. Hail days count distinct calendar days with at least one report, which is the number to read. Reports of 1 inch and larger are the National Weather Service's severe threshold.
| Year | Hail days | Reports | Reports 1 inch or larger | Largest stone (inches) |
|---|---|---|---|---|
| 2020 | 6 | 30 | 26 | 2.5 |
| 2021 | 7 | 45 | 38 | 5.5 |
| 2022 | 4 | 14 | 8 | 2 |
| 2023 | 7 | 45 | 35 | 1.75 |
| 2024 | 5 | 30 | 26 | 2.5 |
| 2025 | 6 | 34 | 26 | 3 |
| 2026 (incomplete) | 0 | 0 | 0 | none yet |
Bexar County Hail By Month
| Month | Reports, 2020 to 2025 |
|---|---|
| January | 2 |
| February | 0 |
| March | 49 |
| April | 67 |
| May | 70 |
| June | 7 |
| July | 0 |
| August | 0 |
| September | 2 |
| October | 0 |
| November | 0 |
| December | 1 |
The Worst Hail Days In Bexar County
Ranked by the largest stone reported that day, then by the number of reports.
| Date | Largest stone (inches) | Reports | Where it was reported |
|---|---|---|---|
| May 3, 2021 | 5.5 | 30 | Martinez, Brooks Afb, Kirby, Schemersville, Balcones Hgts, Lackland Afb, Woodlawn Lake, San Antonio |
| May 26, 2025 | 3 | 9 | Helotes, Grey Forest, San Geronimo, Leon Vly, Beckmann |
| May 27, 2020 | 2.5 | 21 | Hollywood Park, Beckmann, (Sat)San Antonio Int, Wetmore, Terrel Hills, Olmos Park, Kirby, Alamo Downs |
| March 21, 2024 | 2.5 | 7 | Helotes, Grey Forest, Leon Vly, Fratt, Terrel Hills |
| March 31, 2025 | 2 | 15 | Alamo Downs, Leon Vly, (Skf)Kelly Afb San A, Helotes |
| April 20, 2024 | 2 | 9 | Leon Spgs, Sat Twin Oaks Arpt, Hollywood Park, Luxello |
| April 12, 2022 | 2 | 5 | Leon Vly, Beckmann, Sat Twin Oaks Arpt, Wetmore |
| April 28, 2023 | 1.75 | 16 | Helotes, Grey Forest, Leon Spgs, Beckmann, Camp Stanley, Hollywood Park, Sat Twin Oaks Arpt, Alamo Hgts |
| April 28, 2021 | 1.75 | 7 | Alamo Downs, (Skf)Kelly Afb San A, Lackland Afb, Leon Vly, Helotes |
| March 2, 2023 | 1.5 | 12 | Leon Spgs, Sat Twin Oaks Arpt, Alamo Downs, (Skf)Kelly Afb San A, Brooks Afb, Terrel Hills, Converse, Leon Vly |
| April 1, 2024 | 1.5 | 9 | Leon Vly, Castle Hills, Macdona, Alamo Downs, Woodlawn Lake |
| June 8, 2023 | 1.5 | 4 | Luxello, Wetmore, Selma |
Hail Across The Metro Counties
The same record for the seven counties around Bexar, for readers in Boerne, New Braunfels, Schertz and the Hill Country.
| County | Hail days | Reports | Largest stone (inches) |
|---|---|---|---|
| Bexar | 35 | 198 | 5.5 |
| Comal | 19 | 55 | 2 |
| Kendall | 12 | 35 | 2.75 |
| Guadalupe | 13 | 32 | 2 |
| Bandera | 17 | 36 | 2.75 |
| Medina | 10 | 30 | 6.42 |
| Wilson | 9 | 18 | 2 |
| Atascosa | 11 | 20 | 3 |
What This Means For Your Roof
Two things. First, inspect after a hail day, not after a knock on the door. The hail and storm damage ranking lists the companies on our roster that publish storm restoration as a service, with their BBB grade and review record. Second, run the numbers before you file. The hail claim calculator turns your deductible, your policy type and a repair estimate into whether a claim nets anything, and under Texas Insurance Code chapter 707 that decision is yours alone; a contractor cannot negotiate the claim or absorb the deductible for you.
How To Read This Data
Source: NOAA National Centers for Environmental Information, Storm Events Database, the yearly "details" bulk files, filtered to Texas, event type Hail, and the eight metro counties listed above. Stone size is the diameter in inches as reported to the National Weather Service. The record is rebuilt monthly; the file dates at the top of the page are NOAA's own. Download every report as CSV, open, no email gate.
Frequently Asked Questions
- When is hail season in San Antonio?
- March through May. 94% of the 198 Bexar County hail reports since 2020 fall in those three months, with May the single busiest month in the record.
- How many hailstorms does San Antonio get a year?
- Between 4 and 7 hail days a year in Bexar County across 2020 to 2025, 35 in total, counting each calendar day with at least one National Weather Service hail report.
- How big was the biggest hail in San Antonio?
- 6.42 inches at Hondo on April 28, 2021, the largest stone in the metro record since 2020. In 2025 the largest Bexar County stone was 3 inches.
- What size hail damages a roof?
- The National Weather Service treats hail of 1 inch or larger as severe, and 159 of the Bexar County reports since 2020 met that bar. Whether a given roof was damaged depends on its age and material, which is what an inspection is for.
- Best hail damage roof repair companies in San Antonio
- Our hail and storm damage ranking lists every company on the roster that publishes storm restoration as a service, in the same published ranking order as the main list, with its BBB grade and review record.
- Should I call my insurer or a roofer first after hail?
- A documented inspection first: photos, a written scope and a repair estimate let you run the deductible arithmetic before a claim enters your history. The hail claim calculator does that math.
- Can a roofer handle my insurance claim for me in Texas?
- No. Texas Insurance Code chapter 707 bars a contractor from negotiating a claim or absorbing a deductible. A roofer can document damage and give you an estimate; the claim is yours.
- Do roof replacements go up after a hailstorm in San Antonio?
- The permit record says yes. The City issued 7,117 re-roof permits in 2025, the most of any year in the record, following 6 Bexar County hail days that year with stones up to 3 inches. The permit index shows the month-by-month rise.
Sources
- NOAA National Centers for Environmental Information, Storm Events Database. Bulk CSV files StormEvents_details, years 2020 to 2026, newest file dated 2026-09-18. https://www.ncei.noaa.gov/stormevents/.
- National Weather Service. Severe thunderstorm criteria, hail 1 inch in diameter or larger. https://www.weather.gov/safety/thunderstorm-hail.
- City of San Antonio, Development Services Department. Building Permits open dataset, the basis of the re-roof permit counts. https://data.sanantonio.gov/dataset/building-permits.
- Texas Insurance Code, chapter 707. https://statutes.capitol.texas.gov/Docs/IN/htm/IN.707.htm.