Hail and tornadoes in Grayson County, TX
Since December 2020, radar estimated hail somewhere in Grayson County, TX on 104 days. The biggest estimate: 3 in or larger (teacup), on Sat, Apr 25, 2026. Hail was reported to the National Weather Service inside the county on 32 days.
Still loading: radar estimates go back to Wed, Oct 14, 2020, and the earlier years are being added.
Radar estimates are NOAA's MESH: the largest hail the radar estimates aloft, on cells about 0.7 mile across, shown as the lower bound of a size band (“1.5+”). They often run larger than what reached the ground, and they aren't evidence of damage at any address.

Hail on record since 1955
NOAA's Storm Events database lists 392 hail reports in Grayson County, TX on 162 days, 36 of them 2 inches or larger. The largest: 4.5 in, near Dixie, on Sun, Apr 21, 1996.
By decade: 1990s: 69 · 2000s: 65 · 2010s: 111 · 2020s: 147
Tornadoes since 1950
22 tornadoes have touched Grayson County, TX since 1950, 1 of them rated F3/EF3 or stronger. They killed 2 and injured 25.
Strongest
- Tue, May 9, 2006 · F3 · 5.3 mi long, 300 yd wide · near Pilot Grove · 1 death, 4 injuries
- Mon, Mar 21, 2022 · EF2 · 2.38 mi long, 150 yd wide · near Cedar Mills · 1 death, 11 injuries
- Mon, Dec 8, 2008 · EF2 · 3.63 mi long, 125 yd wide · near Denison Mckeon Airport · 3 injuries
- Sun, Jun 8, 2025 · EF1 · 4 mi long, 400 yd wide · near Hilton
- Sun, May 10, 2015 · EF1 · 2.6 mi long, 100 yd wide · near South Gale
Most recent
- Sun, Jun 8, 2025 · EF1 · 4 mi long, 400 yd wide · near Hilton
- Mon, Mar 21, 2022 · EF2 · 2.38 mi long, 150 yd wide · near Cedar Mills · 1 death, 11 injuries
- Tue, Apr 26, 2016 · EF0 · 6.01 mi long, 75 yd wide · near Ida
- Tue, Apr 26, 2016 · EF0 · 2.42 mi long, 150 yd wide · near Howe · 5 injuries
- Tue, Apr 26, 2016 · EF0 · 0.23 mi long, 80 yd wide · near Whitesboro
- Mon, May 25, 2015 · EF0 · 1.71 mi long, 30 yd wide · near Ellsworth
- Wed, May 20, 2015 · EF0 · 0.31 mi long, 30 yd wide · near Locust
- Sun, May 10, 2015 · EF1 · 2.6 mi long, 100 yd wide · near South Gale
- Mon, Dec 8, 2008 · EF2 · 3.63 mi long, 125 yd wide · near Denison Mckeon Airport · 3 injuries
- Mon, Dec 8, 2008 · EF1 · 10.57 mi long, 200 yd wide · near Collinsville · 1 injury
By decade: 1990s: 7 · 2000s: 7 · 2010s: 6 · 2020s: 2
Still loading: NOAA's record goes back to 1950, and 1995 onward is in so far.
Every hail day since December 2020
- Sun, Sep 27, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Sep 20, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Fri, Aug 7, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 6, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Jun 18, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jun 6, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, May 22, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, May 19, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, May 9, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 2 in (2 ENE Southmayd, TX)
- Tue, Apr 28, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sat, Apr 25, 2026
Radar estimate anywhere in the county: 3 in or larger (teacup)
Reported in the county- 1 in (2 S Sherman, TX)
- 1 in (1 NNW Sherman, TX)
- 1 in (1 ENE Sherman, TX)
- 1 in (2 NE Sherman, TX)
- 1.5 in (Tom Bean, TX)
- and 5 more
- Wed, Apr 15, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (5 SW Hendrix, TX)
- Wed, Mar 4, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Jan 31, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Nov 23, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Oct 24, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Tue, Sep 23, 2025
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1.5 in (1 ENE Pottsboro, TX)
- 2 in (Whitesboro, TX)
- 1.5 in (5 N Pottsboro, TX)
- Sun, Sep 21, 2025
Radar estimate anywhere in the county: 3 in or larger (teacup)
Reported in the county- 2.5 in (Luella, TX)
- 2.5 in (3 SE Howe, TX)
- 1.75 in (Van Alstyne, TX)
- Thu, Aug 28, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Aug 11, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Aug 3, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Jul 31, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sat, Jul 26, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jul 12, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jun 25, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jun 8, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1.25 in (2 NW Denison, TX)
- Sat, Jun 7, 2025
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1 in (1 WNW Tom Bean, TX)
- Thu, May 29, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.75 in (1 SSE Knollwood, TX)
- Sun, May 25, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, May 19, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (1 SE Denison, TX)
- Sun, May 18, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, May 17, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Apr 19, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Apr 2, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Mar 25, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.25 in (2 NW Sherman, TX)
- 1.25 in (2 N Sherman, TX)
- 2 in (2 NE Sherman, TX)
- 1 in (1 WSW Denison, TX)
- 1.5 in (1 SSE Bells, TX)
- and 1 more
- Tue, Mar 4, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1 in (1 SE Bells, TX)
- Mon, Mar 3, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1 in (Tom Bean, TX)
- 1 in (Tom Bean, TX)
- Thu, Nov 7, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Sep 24, 2024
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Wed, Jun 26, 2024
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 2 in (4 NW Pottsboro, TX)
- 1 in (6 N Whitesboro, TX)
- Tue, Jun 4, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jun 2, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, May 27, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1 in (Southmayd, TX)
- Sat, May 25, 2024
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1.5 in (1 E Sherman, TX)
- 1 in (4 S Dorchester, TX)
- 1 in (1 SSE Van Alstyne, TX)
- Fri, May 24, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, May 23, 2024
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1.25 in (2 W Sherman, TX)
- 1.75 in (Southmayd, TX)
- 1 in (3 SSW Knollwood, TX)
- 1.75 in (2 W Collinsville, TX)
- Wed, May 22, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (Van Alstyne, TX)
- Tue, May 21, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, May 9, 2024
Radar estimate anywhere in the county: 3 in or larger (teacup)
Reported in the county- 1.75 in (1 S Sherman, TX)
- 1 in (1 NE Howe, TX)
- 2.5 in (Luella, TX)
- 2 in (4 NNE Southmayd, TX)
- 1 in (Whitesboro, TX)
- Fri, Apr 19, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Apr 8, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (3 N Denison, TX)
- Thu, Mar 14, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Tue, Mar 5, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Oct 4, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sun, Sep 24, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Sep 21, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (3 ESE Denison, TX)
- Mon, Jul 3, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Fri, Jun 23, 2023
Radar estimate anywhere in the county: 3 in or larger (teacup)
Reported in the county- 2.5 in (Gunter, TX)
- Thu, Jun 15, 2023
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1 in (3 WNW Sherman, TX)
- 1.5 in (3 W Southmayd, TX)
- 1.75 in (3 S Howe, TX)
- 1 in (1 W Sadler, TX)
- 1.25 in (3 NW Tioga, TX)
- and 1 more
- Wed, Jun 14, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Tue, Jun 13, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Jun 3, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jun 2, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, May 19, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, May 15, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, May 4, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Apr 20, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Apr 2, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (SOUTHMAYD, TX)
- Thu, Mar 23, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.25 in (3 N SADLER, TX)
- Thu, Mar 16, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Mar 8, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (1 ESE HOWE, TX)
- Thu, Mar 2, 2023
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1.75 in (SHERMAN, TX)
- 1.25 in (4 N BELLS, TX)
- 1.75 in (1 NW TIOGA, TX)
- 1.5 in (7 N WHITESBORO, TX)
- Fri, Nov 4, 2022Reported in the county
- 1 in (3 WNW KNOLLWOOD, TX)
- Sat, Oct 15, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Aug 9, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 20, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jul 3, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Jun 19, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, May 15, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, May 2, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, May 1, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Apr 13, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Apr 12, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (VAN ALSTYNE, TX)
- Mon, Apr 4, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Mar 21, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Mar 14, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (2 WNW SOUTHMAYD, TX)
- 1 in (TOM BEAN, TX)
- Mon, Feb 21, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Nov 10, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Oct 27, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Sep 8, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Sep 7, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Aug 17, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Aug 13, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 19, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jun 27, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jun 13, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jun 11, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Jun 6, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, May 11, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, May 10, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (2 WNW SHERMAN, TX)
- 1.25 in (LUELLA, TX)
- 1.5 in (1 NE SADLER, TX)
- 1.5 in (1 WSW BELLS, TX)
- 1 in (3 ESE DENISON, TX)
- Mon, May 3, 2021
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1.5 in (1 S HOWE, TX)
- 1.5 in (8 N SADLER, TX)
- Fri, Apr 23, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Apr 9, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Mar 8, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Feb 28, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (3 N SADLER, TX)
- 1.5 in (2 NE POTTSBORO, TX)
Radar estimates and reports are for anywhere inside the county's boundary. Radar estimates come from NOAA's MRMS estimated hail size (MESH), the largest hail the radar estimates aloft on a ~1 km grid. They often run larger than the hail that reached the ground, and they aren't an observation at any address. Reports are what people reported to the National Weather Service. Neither is proof of damage or an official record for an insurance claim. From NOAA's Storm Events Database (NCEI), which records tornadoes from 1950, hail and thunderstorm wind from 1955, and every kind of storm from 1996. A tornado that crossed county lines is counted in each county it touched. Recent months are added as NCEI publishes them, a few months behind. Damage is in the dollars of its year and is often an estimate.