| March 2025 | Tornado (EF1) | Seymour | $250,000 | An EF1 tornado with maximum wind speeds of 100 mph started 5 miles north of Seymour and tracked northeast into Wright County. In Webster County the tornado ripped the roof off of a home, destroyed numerous barns, collapsed a train communication tower, and snapped trees. |
| February 2001 | Tornado (F1) | Seymour | $155,000 | no account filed |
| April 1996 | Tornado (F0) | Seymour | $100,000 | no account filed |
| December 2018 | Tornado (EF1) | Seymour | $90,000 | An EF-1 tornado formed 2 miles north northeast of Seymour and tracked northeast and dissipated approximately 6 miles northeast of Seymour. There was significant damage to barns along with uprooted trees along the tornadoes path. |
| May 2020 | Thunderstorm Wind | Seymour | $50,000 | Roofs and awnings of building on the town square of Seymour suffered moderate damage from high winds. Falling debris also damaged vehicles. |
| March 2024 | Thunderstorm Wind | Seymour | $37,000 | A large section of a roof was blown over on the square in Seymour. Several power poles were also blown down. A tree also fell on a home in Seymour. |
| July 2023 | Thunderstorm Wind | Seymour | $25,000 | Several large trees were reported down and shingles were blown of a hotel roof. A large sign was also blown over. |
| April 1999 | Tornado (F0) | Seymour | $20,000 | no account filed |
| August 2022 | Thunderstorm Wind | Seymour | $10,000 | Power poles reported down in town with power outages. |
| April 2020 | Thunderstorm Wind | Seymour | $10,000 | A large tree was downed onto a home causing minor damage. |
| July 1999 | Thunderstorm Wind | Seymour | $10,000 | no account filed |
| October 2025 | Thunderstorm Wind | Seymour | $5,000 | A large tree limb fell across a live powerline catching fire. |
| December 2018 | Thunderstorm Wind | Seymour | $5,000 | Power lines were reported down due to high winds. |
| March 2017 | Hail | Seymour | $5,000 | Ping pong size hail was reported in Seymour with wind gusts estimated up to 55 mph. |
| June 1998 | Hail | Seymour | $5,000 | no account filed |
| April 1994 | Hail | Seymour | $5,000 | no account filed |
| March 2024 | Thunderstorm Wind | Seymour | $2,000 | Multiple trees were blown into the roadway on Eagle Drive south of Seymour. The road was blocked. |
| September 2021 | Thunderstorm Wind | Seymour | $2,000 | A large limb fell on a vehicle causing minor damage. |
| June 2012 | Thunderstorm Wind | Seymour | $2,000 | A tree fell down near Seymour school. |
| July 2010 | Flash Flood | Seymour | $2,000 | Flood water from heavy rainfall entered two homes on Division Street in Seymour. |
| June 2025 | Thunderstorm Wind | Seymour | $1,000 | A large tree limb fell down. |
| August 2018 | Thunderstorm Wind | Seymour | $1,000 | The public reported a few 1 inch limbs down and shingles blown off a gas station roof. |
| October 2017 | Thunderstorm Wind | Seymour | $1,000 | An intermittent path of minor wind damage to shingles and trees from west of Seymour into the city. The debris was initially thrown in a divergent direction at the start of the event...continuing in an easterly manner into Seymour. |
| April 1994 | Hail | Seymour | $50 | Wind gusts were also estimated as high as 50 mph by Skywarn spotters. |
| April 1994 | Hail | Seymour | $50 | no account filed |
| March 2025 | Thunderstorm Wind | Seymour | - | A 62 mph wind gust was measured in Seymour during thunderstorms. |
| March 2025 | Hail | Seymour | - | Hail to the size of quarters fell in Seymour. |
| March 2025 | Hail | Seymour | - | Hail to the size of ping pong balls fell in Seymour. |
| March 2024 | Thunderstorm Wind | Seymour | - | A 71 mph wind gust was measured at the EOC in Seymour. |
| August 2024 | Heavy Rain | Seymour | - | Mesonet station FW9032 in Seymour measured 3.25 inches of storm total rainfall. |
| July 2023 | Thunderstorm Wind | Seymour | - | The Emergency Manager recorded a wind gust of 71 mph on a weather station at the emergency management office. |
| May 2022 | Flood | Seymour | - | Skyline Road at the James River low water crossing was closed due to flooding. |
| March 2022 | Flash Flood | Seymour | - | Heavy rainfall caused flooding along Burnett Road. |
| June 2021 | Thunderstorm Wind | Seymour | - | Multiple large limbs were reported down in town. |
| March 2021 | Hail | Seymour | - | Quarter sized hail was reported. |
| December 2021 | Thunderstorm Wind | Seymour | - | The MESONET station FW9032 measured a 61 mph wind gust. |
| May 2020 | Hail | Seymour | - | Quarter sized hail was reported. |
| January 2020 | Thunderstorm Wind | Seymour | - | Winds were estimated between 60-70mph in town. Some large limbs were reported down. |
| February 2017 | Hail | Seymour | - | There were numerous reports of dime to quarter size hail covering Highway 60 near Seymour which caused travel impacts. |
| July 2016 | Flash Flood | Seymour | - | Excessive rainfall caused several city streets in Seymour to flood. |
| June 2015 | Heavy Rain | Seymour | - | In Seymour, 6.20 inches of rainfall was reported in the last 24 hours. |
| June 2015 | Heavy Rain | Seymour | - | Near Seymour, 6.00 inches of rainfall was reported in the last 24 hours. |
| September 2012 | Thunderstorm Wind | Seymour | - | Several large limbs were blown down. Wind gusts were estimated up to 60 mph. |
| April 2011 | Hail | Seymour | - | Quarter inch hail was also reported about one mile southeast of Forland. |
| July 2010 | Flash Flood | Seymour | - | Rising flood waters from very heavy rainfall threatened the Seymour Senior Citizen Center. The center was evacuated as a result. |
| July 2010 | Flash Flood | Seymour | - | Finley Falls Road west of Seymour was reported as impassable due to water flowing over the roadway. |
| July 2010 | Flash Flood | Seymour | - | Many streets were reported as flooded in Seymour with up to one foot of flowing water. |
| July 2010 | Flash Flood | Seymour | - | A water rescue was performed in near waist deep, flowing water near the intersection of Findley Falls and Burnett Roads. |
| October 2009 | Heavy Rain | Seymour | - | A total rainfall amount of 3.20 inches was measured. |
| April 2018 | Hail | Seymour | - | no account filed |
| May 2018 | Hail | Seymour | - | no account filed |
| May 2018 | Hail | Seymour | - | no account filed |
| May 2018 | Hail | Seymour | - | no account filed |
| March 2015 | Hail | Seymour | - | no account filed |
| April 2014 | Hail | Seymour | - | no account filed |
| August 2012 | Hail | Seymour | - | no account filed |
| April 2011 | Hail | Seymour | - | no account filed |
| April 2009 | Thunderstorm Wind | Seymour | - | no account filed |
| February 2006 | Hail | Seymour | - | no account filed |
| April 2006 | Hail | Seymour | - | no account filed |