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 179 hail storms within 25 miles of Denison, TX. Of those, 157 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. 2025 was the most active year on record locally, with 55 documented hail events.
Check Hail History for a Specific Address in Denison| Severity | Count | What it means for roofs |
|---|---|---|
| Catastrophic | 4 events | Baseball+ size, structural roof damage likely |
| Destructive | 17 events | Egg-size, expect mat fractures and gutter damage |
| Severe | 42 events | Ping pong-size, granule loss and bruising common |
| Significant | 94 events | Quarter-size, the standard insurance damage threshold |
| Moderate | 22 events | Marble-size, possible cosmetic damage |
| Year | Reported Hail Events Within 25 mi |
|---|---|
| 2026 | 40 events |
| 2025 | 55 events |
| 2024 | 42 events |
| 2023 | 31 events |
| 2022 | 11 events |
2025 was the busiest hail year on record locally for Denison, with 55 documented events inside the 25-mile radius. Storm activity in Denison 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 |
|---|---|---|---|---|
| 2026-08-07 | Pottsboro, TX | Moderate | 0.88" | Media reported nickel-size hail near Pottsboro at 5:35pm. |
| 2026-05-10 | 2 ENE Southmayd, TX | Destructive | 2.00" | Spotter reports 2 inch hail near Sherman. |
| 2026-05-10 | SADLER, TX | Destructive | 2.00" | A public report indicated 2-inch diameter hail on FM 901 south of Whitesboro. |
| 2026-05-10 | 5 N Pottsboro, TX | Significant | 1.00" | Facebook report of quarter size hail in Preston Shores. |
| 2026-05-10 | SOUTHMAYD, TX | Destructive | 2.00" | A trained spotter reported 2 inch diameter hail between Southmayd and Sherman. |
| 2026-05-10 | 3 SE Whitesboro, TX | Destructive | 2.00" | Reported on FM 901 South. |
| 2026-05-10 | AMBROSE, TX | Significant | 1.00" | A social media report indicated quarter sized hail between the cities of Bells and Denison. |
| 2026-05-10 | 6 N Bells, TX | Significant | 1.00" | Facebook report of quarter size hail between Bells and Denison. |
| 2026-05-09 | POTTSBORO LOES ARPT, TX | Significant | 1.00" | A social media post indicated quarter sized hail in Preston Shores on the south side of Lake Texoma. |
| 2026-04-26 | 1 W Trenton, TX | Catastrophic | 4.00" | Delayed report. Pictures showed hail stones around 4 inches in diameter in Trenton. Time estimated by radar. |
| 2026-04-26 | TRENTON, TX | Catastrophic | 4.00" | Pictures showed hail stones around 4 inches in diameter in Trenton. |
| 2026-04-26 | 1 ENE Sherman, TX | Significant | 1.00" | Quarter size hail reported near the Sherman Municipal Airport. |
| 2026-04-26 | 2 ENE Denison, TX | Significant | 1.00" | Quarter sized hail reported near Hwy 69 covering 5 percent of the ground. |
| 2026-04-26 | 1 NNW Sherman, TX | Significant | 1.00" | Quarter size hail reported near Lamar and US 75. |
| 2026-04-26 | SHERMAN MUNI ARPT, TX | Significant | 1.00" | Emergency manager reported quarter size hail at Cherry Street Park. |
| 2026-04-26 | SHERMAN MUNI ARPT, TX | Significant | 1.00" | Emergency manager reported quarter size hail near the Sherman Municipal Airport. |
| 2026-04-26 | SHERMAN MUNI ARPT, TX | Significant | 1.00" | Emergency manager reported quarter size hail near Lamar and US 75. |
| 2026-04-26 | 2 S Sherman, TX | Significant | 1.00" | Quarter size hail reported in South Sherman. |
| 2026-04-26 | DENISON, TX | Significant | 1.00" | Emergency manager reported quarter sized hail 1 mile northwest of Downtown Denison. |
| 2026-04-26 | POTTSBORO, TX | Significant | 1.00" | Emergency manager reported quarter sized hail in downtown Pottsboro. |
NOAA has recorded 88 high-wind events within 25 miles of Denison, TX in the past five years. Of those, 88 reached severe-thunderstorm thresholds (58+ mph). The highest measured gust was 104 mph.
| Severity | Count |
|---|---|
| Destructive | 1 event |
| Severe | 46 events |
| Significant | 41 events |
| Date | Location | Gust (mph) | Severity | NOAA Comments |
|---|---|---|---|---|
| 2026-06-22 | 5 ESE Calera, OK | 58 | Significant | Wake low. Measured from Durant Mesonet. |
| 2026-05-10 | BONHAM, TX | 53 | Significant | Emergency manager reported a large tree limb down on east 8th street in Bonham. A 53 mph wind gust was reported near 121 at Sam Rayburn Drive. |
| 2026-04-28 | RED BRANCH, TX | 69 | Severe | A public report indicated tree damage at a home near Dexter. Many tree limbs were down or snapped, and a large limb fell on top of the house. |
| 2026-04-15 | SHERMAN MUNI ARPT, TX | 63 | Significant | A social media picture indicated a tree down on North Travis Street near Highway 75 in Sherman. |
| 2026-03-10 | MEAD, OK | 70 | Severe | An estimated wind gust near the intersection of U.S. Highway 60 and Streetman Road. The report was relayed by emergency management. |
| 2025-09-24 | DURANT EAKER ARPT, OK | 71 | Severe | A wind gust measured at the City of Durant Emergency Operations Center. Relayed images show four light aircraft damaged by thunderstorms winds at nearby Durant Eaker Field (KDUA). |
| 2025-09-21 | HOWE, TX | 62 | Significant | A weather station approximately 3 miles southeast of Howe measured a 62 mph wind gust. Large tree branches were also broken. Large hail was also reported at this location, causing additional damage. |
| 2025-09-21 | WHITE MOUND, TX | 70 | Severe | Eleven wooden power and communication poles were broken along Highway 902 east of Howe between the power substation and Harrell Rd. |
| 2025-09-05 | GUNTER, TX | 70 | Severe | A social media report indicated that the roof of a horse barn collapsed along Massey Road to the east of Gunter. |
| 2025-09-05 | VAN ALSTYNE, TX | 70 | Severe | A public report indicated that several trees and power lines were blown down in and around Van Alstyne, with widespread power outages reported. A FEMA employee reported 12 inch or larger diameter trees were snapped just south of Van Alstyne. |
| 2025-09-05 | GUNTER, TX | 74 | Severe | Gunter Volunteer Fire Department measured a wind gust of 74 mph. A survey from local officials indicated shingle and large tree limb damage in Gunter, along with outbuildings destroyed and barn doors damaged. The damage was consistent with strong straight line winds likely associated with a microburst. |
| 2025-09-05 | WHITERIGHT, TX | 64 | Severe | Local officials reported numerous trees and power lines down in and around Whitewright, along with with widespread power outages. One transmission line was also blown down. |
| 2025-07-31 | VAN ALSTYNE, TX | 63 | Significant | A public report indicated multiple trees down in Van Alstyne, just north of Panther Pkwy and west of US Highway 75. |
| 2025-06-25 | ECTOR, TX | 55 | Significant | The county EM relayed a report of two power poles snapped on CR 4105 to the southeast of Ector. |
| 2025-06-08 | CARTWRIGHT, OK | 64 | Severe | Relayed images show minor damage to the metal roof of a church in the community of Cartwright. The event time is estimated from radar observations. |
| 2025-06-08 | COLLINSVILLE, TX | 75 | Severe | Damage was reported to three properties between Whitesboro and Collinsville near the intersection of Shadow Valley Rd and Clements Rd. The roof was torn off an auxiliary garage, a tree fell on an abandoned home, and part of the roof was torn off a double wide manufactured home. |
| 2025-06-08 | COLBERT, OK | 64 | Severe | Relayed images show multiple tree branches blown down. The event time is estimated from radar observations. |
| 2025-06-08 | BONHAM, TX | 85 | Severe | A storm survey team determined RFD or inflow winds along Old Silo Road on the west side of Bonham, southwest of an ongoing tornado, blew part of the roof off a Braums store on Hwy 121, flattened the scoreboard at the Warriors Stadium, and lifted part of the roof off the western side of Finley Oates Elementary school. |
| 2025-06-08 | RAVENNA, TX | 85 | Severe | A storm survey team determined RFD or inflow winds along the west side of a tornado track caused notable tree damage and some structural damage along FM 274 and West FM 898 between Ravenna and Bonham. |
| 2025-06-08 | BONHAM JONES ARPT, TX | 81 | Severe | A large downburst struck areas from the Boyd area along Hwy 78 eastward to around Lake Bonham. Numerous trees and power lines were blown down in this area, with some damage to outbuildings. Winds were estimated between 60-80 mph. |
The most recent quarter-size-or-larger hail storm recorded by NOAA within 25 miles of Denison was on May 10, 2026. HailCheck refreshes from the NOAA Storm Events database daily, so newer events appear here as they are reported.
Denison averages roughly 36 reported hail events per year within a 25-mile radius. Significant storms (quarter-size or larger) account for 157 of the 179 events recorded over the last five years.
The largest documented hail near Denison in the last five years was baseball-sized or larger. Most Denison-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 Denison. 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 Denison 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 ValidationDenison 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.