Data current as of 2026-10-16 · Sourced from NOAA Storm Events
Over the past five years, the National Oceanic and Atmospheric Administration has recorded 90 hail storms within 25 miles of San Marcos, TX. Of those, 72 produced hail at least quarter-size — the threshold most insurance carriers consider potentially damaging to asphalt shingles. The largest reported hail in this window was baseball-sized or larger, which can fracture shingle mat and dent metal flashing on contact. 2024 was the most active year on record locally, with 27 documented hail events.
Check Hail History for a Specific Address in San Marcos| Severity | Count | What it means for roofs |
|---|---|---|
| Catastrophic | 2 events | Baseball+ size, structural roof damage likely |
| Destructive | 13 events | Egg-size, expect mat fractures and gutter damage |
| Severe | 16 events | Ping pong-size, granule loss and bruising common |
| Significant | 41 events | Quarter-size, the standard insurance damage threshold |
| Moderate | 18 events | Marble-size, possible cosmetic damage |
| Year | Reported Hail Events Within 25 mi |
|---|---|
| 2026 | 10 events |
| 2025 | 24 events |
| 2024 | 27 events |
| 2023 | 16 events |
| 2022 | 13 events |
2024 was the busiest hail year on record locally for San Marcos, with 27 documented events inside the 25-mile radius. Storm activity in San Marcos typically peaks in spring and early summer, when the jet stream pushes Gulf moisture into the area and supercell thunderstorms become more frequent.
| Date | Location | Severity | Size | NOAA Comments |
|---|---|---|---|---|
| 2026-08-28 | 3 SE Buda, TX | Moderate | 0.70" | Report from mPING Dime (0.70 in.). |
| 2026-06-03 | 3 SE Buda, TX | Significant | 1.00" | Report from mPING. Quarter sized hail. |
| 2026-06-02 | BUDA, TX | Significant | 1.00" | A thunderstorm produced quarter size hail east of Buda. |
| 2026-05-09 | New Braunfels, TX | Moderate | 0.88" | Pea to nickel size hail in downtown New Braunfels. |
| 2026-05-09 | NEW BRAUNFELS, TX | Moderate | 0.88" | A thunderstorm produced pea to nickel size hail in New Braunfels. |
| 2026-05-09 | New Braunfels, TX | Moderate | 0.75" | up to dime to penny size hail falling at Schlitterbahn in New Braunfels. Time estimated via radar. |
| 2026-05-09 | NEW BRAUNFELS, TX | Moderate | 0.75" | A thunderstorm produced dime to penny size hail at Schlitterbahn in New Braunfels. |
| 2026-05-09 | 3 ENE New Braunfels, TX | Moderate | 0.75" | Hail up to dime to penny size at Creekside Crossing and Buc-ees; photo and video shared from location. Time estimated via radar. |
| 2026-05-09 | GRUENE, TX | Moderate | 0.75" | A thunderstorm produced dime to penny size hail at the Creekside Crossing shopping center in New Braunfels. |
| 2026-05-09 | 3 NE San Leanna, TX | Moderate | 0.50" | Report from mPING. |
| 2025-11-01 | SEGUIN, TX | Significant | 1.00" | A thunderstorm produced quarter size hail in Seguin. There were pictures of the hail on social media. |
| 2025-05-22 | REEDVILLE, TX | Severe | 1.50" | A thunderstorm produced ping pong ball size hail in Reedville. |
| 2025-05-22 | MAXWELL, TX | Severe | 1.50" | A thunderstorm produced ping pong ball size hail near the San Marcos Regional Airport. |
| 2025-05-22 | MARTINDALE, TX | Destructive | 2.00" | A thunderstorm produced chicken egg size hail in Martindale. |
| 2025-05-22 | REEDVILLE, TX | Significant | 1.00" | A thunderstorm produced quarter size hail near Martindale. The hail dented some cars and shredded leaves. |
| 2025-05-22 | KYLE, TX | Destructive | 2.50" | A thunderstorm produced tennis ball size hail near Simon Middle School in Kyle. |
| 2025-05-22 | NIEDERWALD, TX | Destructive | 2.00" | A thunderstorm produced chicken egg size hail near Uhland. |
| 2025-05-22 | NIEDERWALD, TX | Destructive | 2.75" | A thunderstorm produced baseball size hail in Uhland. |
| 2025-05-22 | SAN MARCOS MUNI ARPT, TX | Destructive | 2.00" | A thunderstorm produced chicken egg size hail north of the San Marcos Regional Airport. |
| 2025-05-22 | NIEDERWALD, TX | Severe | 1.75" | A thunderstorm produced golf ball size hail in Uhland. |
NOAA has recorded 81 high-wind events within 25 miles of San Marcos, TX in the past five years. Of those, 81 reached severe-thunderstorm thresholds (58+ mph). The highest measured gust was 100 mph.
| Severity | Count |
|---|---|
| Destructive | 3 events |
| Severe | 33 events |
| Significant | 45 events |
| Date | Location | Gust (mph) | Severity | NOAA Comments |
|---|---|---|---|---|
| 2026-08-29 | 5 E New Braunfels, TX | 59 | Significant | ASOS station KBAZ New Braunfels National Airport. |
| 2026-08-27 | 3 N Luling, TX | 97 | Destructive | A private business sustained wind damage. Several empty shipping containers were moved or rolled. A trailer onsite was rolled. Another small trailer was blown into a fence. A private weather station onsite recorded a 97 mph instantaneous wind gust at 30 feet. A NWS survey team observed all damage blown southwest and consistent with straight-line winds. |
| 2026-08-27 | 4 SSW Lost Creek, TX | 60 | Significant | Media reports estimated 60 mph wind gusts off Old Bee Caves Road in south Austin. |
| 2026-06-03 | 3 NNW Martindale, TX | 59 | Significant | AWOS station KHYI San Marcos Regional Arpt. |
| 2026-06-02 | HUNTER, TX | 64 | Severe | A thunderstorm produced wind gusts estimated at 65 mph that knocked down power lines on Watson Ln W between I-35 and FM 1102 northeast of New Braunfels. A broadcast media partner relayed the report with a photo of the damage. |
| 2026-06-02 | REEDVILLE, TX | 59 | Significant | A thunderstorm produced wind gusts measured at 51 kts by the AWOS at San Marcos Regional Airport. |
| 2026-05-20 | 5 WNW Woodcreek, TX | 56 | Significant | Mesonet station HWWT2 Wimberley-West. |
| 2026-05-20 | 4 W Sunset Valley, TX | 60 | Significant | Power flashes in Oak Hill area of Austin. 50 to 60 mph winds estimated by news media. |
| 2026-05-19 | OAK HILL, TX | 60 | Significant | A line of thunderstorms produced wind gusts estimated around 50 to 60 mph in the Oak Hill area. Power flashes were observed. |
| 2026-05-10 | VINSON, TX | 58 | Significant | Numerous medium to large tree limbs were downed by strong thunderstorm winds across South Austin. |
| 2026-05-10 | CREEDMOOR, TX | 58 | Significant | A deck awning was blown down by strong thunderstorm winds. |
| 2026-05-09 | BUDA, TX | 64 | Severe | A thunderstorm produced wind gusts estimated at 65 mph that uprooted a tree in the Whispering Hollow subdivision in Buda. |
| 2026-05-09 | BLUFF SPGS, TX | 70 | Severe | A thunderstorm produced wind gusts estimated at 70 mph that blew down a tree that blocked Old San Antonio Rd. in Manchaca. The road was closed in the 11500 block. |
| 2026-05-09 | BUDA, TX | 64 | Severe | A thunderstorm produced wind gusts estimated at 65 mph that uprooted a tree in Mountain City. |
| 2026-05-09 | BUDA, TX | 70 | Severe | A thunderstorm produced wind gusts estimated at 70 mph that snapped some 6-12 inch diameter Oak tree limbs at the Memorial Miniature Golf & Museum in Buda. |
| 2025-10-24 | CANYON RES, TX | 100 | Destructive | An NWS survey team observed a home with a portion of its roof removed and thrown 100 yards to the east-northeast. Approximately 150 yards to the east-northeast of the house, the roof of a detached garage was blown off. Large tree limbs and power poles were also broken close to these structures. These buildings were located on the western top of a high ridge, and the portion of the roofs removed were exposed to the west. When overlaying radar data, the most likely cause of this damage were the roofs being |completely exposed to the surging rear-flank downdraft at a significantly higher elevation than surrounding homes that were not damaged. Wind speeds were estimated at 100 mph. |
| 2025-10-24 | CANYON RES, TX | 100 | Destructive | An NWS survey team observed a home on Sundown Trail with a portion of its roof removed. This house was located on the western top of a high ridge, and the portion of the roof removed was exposed to the west. When overlaying radar data, the most likely cause of this damage was the roof being completely exposed to the surging rear-flank downdraft at a significantly higher elevation than surrounding homes that were not damaged. These straight-line winds were estimated to be near 100 mph. |
| 2025-10-24 | CANYON RES, TX | 58 | Significant | A thunderstorm produced wind gusts measured at 50 kts by the mesonet station at Canyon Lake. |
| 2025-05-26 | SAN MARCOS LOWMAN AR, TX | 64 | Severe | A thunderstorm produced wind gusts estimated at 65 mph that blew down trees and caused power outages in San Marcos. |
| 2025-05-23 | HUNTER, TX | 64 | Severe | A thunderstorm produced wind gusts estimated at 65 mph that uprooted a large tree at the corner of Beaver Ln. and Deer Run Way in New Braunfels. |
The most recent quarter-size-or-larger hail storm recorded by NOAA within 25 miles of San Marcos was on June 3, 2026. HailCheck refreshes from the NOAA Storm Events database daily, so newer events appear here as they are reported.
San Marcos averages roughly 18 reported hail events per year within a 25-mile radius. Significant storms (quarter-size or larger) account for 72 of the 90 events recorded over the last five years.
The largest documented hail near San Marcos in the last five years was baseball-sized or larger. Most San Marcos-area hail falls in the marble-to-quarter range, with destructive storms (egg-size or larger) appearing roughly once every few years.
Most homeowners insurance policies in TX cover hail damage to roofs, siding, and gutters under the dwelling and other-structures coverage. Coverage typically requires the damage to be tied to a verifiable storm date — which is where the NOAA hail history above (and a HAAG-style test square validation) becomes important for the claim file.
Use the HailCheck address search to enter any street address in or near San Marcos. HailCheck returns every NOAA hail event within a configurable radius, along with severity bands, dates, and storm narratives for Pro members.
If your property in or near San Marcos took on hail during one of the storms above, the standard process for documenting damage is a 10×10 foot test square inspection. A HAAG-trained reviewer counts impact indicators — granule displacement, mat fractures, and bruising — within the marked square and produces a PASS or FAIL document for the claim file.
HailCheck offers a $99 photo-based HAAG-style test square validation. You submit photos from the field, our reviewer evaluates the impact indicators and cross-references the NOAA storm dates listed above, and a written PASS/FAIL determination is returned within one business day. We do not send anyone to the roof — the validation is built around the photos you submit.
Learn About $99 HAAG-Style ValidationSan Marcos sits inside the central United States hail belt, where warm Gulf moisture collides with cold continental air to produce supercell thunderstorms capable of dropping the hail documented above. Properties in this zone typically see at least one significant hail event every two to four years.