Grayson County, Texas
Tornadoes, hail, floods and severe storms recorded here between 1952 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
72
Tornado reports
486
Hail reports
118
Floods since 1996
1,300
All events
13
Deaths
$81.1M
Property damage
Tornado paths in Grayson County
The part of each tornado’s path NOAA recorded in this county, 72 in all. Zoom in and the paths widen to their surveyed width.
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Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
A significant tornado which formed in northern Collin County continued into southeastern Grayson County. A damage survey conducted by the National Weather Service in Fort Worth found that the tornado remained strong F3 as it crossed into Grayson County. A fatality occurred on Bla…
Tornado F3 Tornado
Tornado F3 Tornado
Tornado F3 Tornado
Tornado F3 Tornado
Tornado F3 Tornado
Broadcast media reported that two men were struck by lightning at The Bridges golf course in Gunter. One man was killed and another injured.
Two fatalities occurred when their SUV hydroplaned off of the US 75 service road and ended up overturned in a flooded drainage culvert. The two individuals were swept away into Post Oak Creek.
A boat with 8 people on board capsized in thunderstorm winds resulting in the fatality of a 6 year old boy.
The tornado first touched down in a field near Thousand Oak Trails. It then moved through the Sherwood Oaks community, producing extensive and widespread damage to trees and homes. Multiple manufactured homes were flipped, many trees were snapped in half, and one home was moved o…
A male was killed on icy roads when his car lost control on an overpass and rolled over. Several other vehicle accidents were reported during the morning hours as freezing drizzle resulted in icy conditions.
A 34-year-old truck driver died on US Highway 75 in Sherman. He lost control of his semi on an icy patch and crashed into the concrete pillar of the Loy Lake Road overpass. The temperature at the time of the accident was around 23 degrees.
Slick roadways are believed to be the cause of a fatal accident on FM 1753. A man riding a motorcycle lost control on the wet road and slid off the road. He died while en route to the hospital.
Water was reported over the roads in several locations across the northern portions of the county. Road and bridge damage was being observed. At 330 pm, a fatal accident occurred on HWY 377 north of Whitesboro.
Significant flooding occurred with cars and mobile homes moved by the force of the water. Numerous roads were closed across the county, including Highways 377 and 75, and more than 450 people were rescued from high water. One woman died in floodwaters as she drove on Texoma Parkw…
Up to 4 of ice and sleet accumulated in Grayson County. On average, 3-4 of ice and sleet was reported and most of the reports were sleet accumulations. One media station in Denison reported 0.10 ice with 3 of sleet accumulations. Traffic became very difficult, including Highway 8…
A total of 94 accidents occurred in Sherman, Denison, Howe, and Van Alstyne due to icy conditions. More than 10 of the wrecks resulted in injuries which required hospital treatment. Numerous other cars skidded into ditches. Most of the accidents occurred on Highways 75 and 82.
At least 50 accidents were reported across the county in association with a weekend ice storm. Several of the accidents involved injuries. Power was also briefly out to residents as ice accumulated on and pulled down power lines.
Accumulations of snow, sleet, and freezing rain caused numerous accidents around the county. Most of them were along U.S. Highway 82 and Highway 75. Several of the accidents were serious, with cars driving off bridges, overpasses, and into trees.
Extreme cold gripped the county for several days. Overnight lows were near or below 10 degrees Fahrenheit almost all week. The period of February 15-16th was the coldest with low temperatures between 2 and -5 degrees Fahrenheit, and the maximum temperature on the 15th was only in…
Widepsread flooding continued through the night across the county with several roads and bridges under water and several areas inaccessible.
Hail up to baseball size did extensive damage in Sherman to cars and houses. This is the same storm that hit the Whitesboro area earlier.
Damage from hail across the county was extensive with car dealerships reporting the most damage. The damage estimate for the county was $20 million.
Heat Heat
Heat index values between 105 and 110 degrees occurred across the county on June 18.
Hail Hail
A social media report indicated quarter sized hail between the cities of Bells and Denison.
Hail Hail
A public report indicated 2-inch diameter hail on FM 901 south of Whitesboro.
Hail Hail
A trained spotter reported 2 inch diameter hail between Southmayd and Sherman.
Hail Hail
A social media post indicated quarter sized hail in Preston Shores on the south side of Lake Texoma.
Thunderstorm Wind Thunderstorm Wind
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.
Hail Hail
Emergency manager reported quarter sized hail in downtown Pottsboro.
Hail Hail
Emergency manager reported quarter sized hail 1 mile northwest of Downtown Denison.
Hail Hail
Emergency manager reported quarter sized hail near Hwy 69 covering 5 percent of the ground.
Hail Hail
Emergency manager reported quarter size hail in South Sherman.
Hail Hail
Emergency manager reported quarter size hail at Cherry Street Park.
Hail Hail
Emergency manager reported quarter size hail near Lamar and US 75.
Hail Hail
Emergency manager reported quarter size hail near the Sherman Municipal Airport.
Hail Hail
Emergency manager reported 3.5 inch hail at the intersection of Marlow Road and Rochelle Canyon road.
Hail Hail
Emergency manager reported golf ball size and larger hail in Tom Bean. Trees and cars were damaged by the hail.
Hail Hail
Amateur radio operator reported 1.5 inch hail in Tom Bean.
Hail Hail
A photo showed hail stones between 2 and 2.25 inches in diameter just east of Tom Bean. Damage to cars and home windows were also reported.
Hail Hail
Emergency manager reported golf ball size hail in downtown Whitewright.
Hail Hail
A public mPing report indicated quarter sized hail on Highway 1753 southeast of Denison.
Thunderstorm Wind Thunderstorm Wind
A social media picture indicated a tree down on North Travis Street near Highway 75 in Sherman.
Flash Flood Flash Flood
Heavy rain caused several roads to be under water in the city of Sherman, according to the Sherman Police Department. Affected locations included North Harrison Avenue near a train bridge, the 1000 block of North Travis Street, and the area near the intersection of West Taylor St…
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Wind chills dropped below 0 degrees across the county between Saturday evening and Tuesday morning, January 24th through 27th. The lowest wind chill of -6 was recorded at KGYI the morning of January 25th.
Winter Storm Winter Storm
Sleet and snow totals up to 5.8 inches were reported across Grayson County, along with reports of freezing rain accumulations up to 0.2 inches. The highest sleet and snow total was reported northwest of Van Alstyne.
Hail Hail
Estimated ping pong ball size hail near Lake Texoma.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 23 | 0 |
| 2025 | 70 | 1 |
| 2024 | 73 | 0 |
| 2023 | 63 | 0 |
| 2022 | 33 | 1 |
| 2021 | 32 | 0 |
| 2020 | 21 | 0 |
| 2019 | 34 | 0 |
| 2018 | 30 | 0 |
| 2017 | 27 | 0 |
| 2016 | 26 | 3 |
| 2015 | 52 | 3 |
| 2014 | 26 | 0 |
| 2013 | 26 | 0 |
| 2012 | 28 | 0 |
| 2011 | 60 | 0 |
| 2010 | 12 | 0 |
| 2009 | 48 | 0 |
| 2008 | 24 | 3 |
| 2007 | 24 | 0 |
| 2006 | 34 | 4 |
| 2005 | 30 | 0 |
| 2004 | 14 | 0 |
| 2003 | 13 | 0 |
| 2002 | 18 | 0 |
| 2001 | 31 | 0 |
| 2000 | 18 | 0 |
| 1999 | 25 | 0 |
| 1998 | 21 | 0 |
| 1997 | 34 | 2 |
| 1996 | 38 | 4 |
| 1995 | 32 | 1 |
| 1994 | 23 | 3 |
| 1993 | 2 | 0 |
| 1992 | 18 | 1 |
| 1991 | 17 | 1 |
| 1990 | 25 | 0 |
| 1989 | 13 | 0 |
| 1988 | 5 | 0 |
| 1987 | 11 | 0 |
| 1986 | 6 | 0 |
| 1985 | 3 | 0 |
| 1984 | 12 | 1 |
| 1983 | 12 | 1 |
| 1982 | 16 | 3 |
| 1981 | 5 | 2 |
| 1980 | 6 | 0 |
| 1979 | 7 | 2 |
| 1977 | 1 | 1 |
| 1976 | 3 | 1 |
| 1975 | 9 | 3 |
| 1974 | 4 | 2 |
| 1973 | 1 | 1 |
| 1971 | 8 | 6 |
| 1970 | 3 | 1 |
| 1969 | 2 | 0 |
| 1968 | 4 | 0 |
| 1966 | 2 | 0 |
| 1965 | 5 | 1 |
| 1963 | 1 | 1 |
| 1962 | 4 | 2 |
| 1961 | 1 | 0 |
| 1960 | 3 | 2 |
| 1959 | 5 | 1 |
| 1958 | 3 | 1 |
| 1957 | 8 | 5 |
| 1956 | 2 | 0 |
| 1955 | 5 | 3 |
| 1954 | 3 | 3 |
| 1952 | 2 | 2 |
Search your address
See every tornado that passed within 25 miles of a place in Grayson County, measured to its path.
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