| January 1995 | Thunderstorm Wind | Walhalla | 1 hurt, $5,000 | no account filed |
| February 1997 | Thunderstorm Wind | Walhalla | $130,000 | no account filed |
| June 2006 | Flash Flood | Walhalla | $25,000 | Levi Lane, Debra Lane, and Seed Farm Road were all washed out, and numerous other roads were closed due to flooding, mainly in areas from Walhalla south to between Seneca and Westminster. Most of the flooding was due to poor drainage, but some of it was likely due to flooding streams. Closed roads included E Halfway Branch, Antebellum, Avondale, Mauldin Mill, Sertoma Field, and Camp. |
| July 2004 | Thunderstorm Wind | Walhalla | $25,000 | Trees were blown down in the Lake Keowee area. A number of homes were damaged by falling trees. |
| September 2022 | Flash Flood | Walhalla | $10,000 | Multiple sources reported flash flooding developed over western Oconee County after 4 to 7 inches of rain fell in around 6 hours. Impacts were generally limited to inundated roads, including Stribling Shoals Rd and Coffee Rd at the confluence of White Fork and Coneross Creeks. The Chauga River and Ramsey Creek caused significant flooding of Chau Ram Park and Ramsey Creek Rd. Multiple roads were reported flooded and closed closer to Westminster, including Clearmont Rd, which was inundated by Colonels Fork Creek. |
| June 2022 | Thunderstorm Wind | Walhalla | $10,000 | Multiple trees were blown down in the Walhalla area, with one tree on a house. |
| January 1995 | Thunderstorm Wind | Walhalla | $10,000 | no account filed |
| January 1996 | Thunderstorm Wind | Walhalla | $5,000 | no account filed |
| September 2004 | Tornado (F0) | Walhalla | $2,000 | This weak tornado blew down numerous trees and power lines along its 5-mile track. |
| April 2013 | Thunderstorm Wind | Walhalla | $1,000 | A tree was blown down on Main St, bringing down a power line that fell on a vehicle, briefly trapping an occupant. |
| August 2002 | Thunderstorm Wind | Walhalla | $1,000 | A few trees and powerlines were blown down. |
| February 1998 | Thunderstorm Wind | Walhalla | $300 | no account filed |
| May 2025 | Thunderstorm Wind | Walhalla | - | Law enforcement reported a few trees blown down west of Walhalla. |
| June 2025 | Thunderstorm Wind | Walhalla | - | County comms reported trees blown down at Church St and West Union Rd. |
| July 2023 | Thunderstorm Wind | Walhalla | - | Law enforcement reported a few trees blown down between Walhalla and Westminster. |
| August 2023 | Thunderstorm Wind | Walhalla | - | County comms reported trees blown down in the Walhalla area. |
| April 2022 | Hail | Walhalla | - | Sheriff deputy reported quarter size hail near Walhalla. |
| September 2022 | Flood | Walhalla | - | Although heavy rain tapered off across Oconee County during the late morning, flooding due to the overnight and early morning rainfall persisted into the early afternoon before receding. |
| August 2019 | Thunderstorm Wind | Walhalla | - | County comms reported a few trees blown down on South Tugaloo St. |
| August 2018 | Hail | Walhalla | - | Public reported (via Social Media) penny size hail in the Walhalla area. |
| May 2017 | Thunderstorm Wind | Walhalla | - | FD reported a few trees and powerlines blown down off Highway 183 near Walhalla. |
| July 2017 | Thunderstorm Wind | Walhalla | - | County comms reported a tree blown down near Mountain Rest and another tree down near downtown Walhalla. |
| May 2016 | Hail | Walhalla | - | Public reported (via social media) quarter size hail on Sertoma Field. |
| July 2016 | Thunderstorm Wind | Walhalla | - | HAM Radio operator reported multiple power lines blown down across Oconee County, from north of Walhalla to the Westminster area. |
| April 2015 | Hail | Walhalla | - | Spotters reported penny to quarter size hail in the Walhalla area. |
| August 2014 | Thunderstorm Wind | Walhalla | - | County comms reported multiple trees and power lines blown down on South Laurel St. |
| August 2014 | Thunderstorm Wind | Walhalla | - | County comms reported a tree blown down in Walhalla and another tree down on Adams Sullivan Rd (2 SW). |
| June 2014 | Hail | Walhalla | - | Spotter reported larger than golf ball size hail. |
| June 2014 | Hail | Walhalla | - | Public reported quarter size hail. |
| August 2013 | Hail | Walhalla | - | Up to quarter size hail was reported in the Walhalla area. |
| August 2013 | Thunderstorm Wind | Walhalla | - | A few trees and power lines were blown down to the north of Walhalla, including on Rocky Noll Road at Lusk Road and Marino Lane. |
| January 2013 | Thunderstorm Wind | Walhalla | - | Multiple trees and power lines were blown down in the Walhalla area. |
| January 2013 | Thunderstorm Wind | Walhalla | - | Multiple trees were blown down, with one tree on a mobile home near Salem. |
| March 2012 | Thunderstorm Wind | Walhalla | - | A few trees were blown down in the Walhalla area. |
| May 2011 | Hail | Walhalla | - | Dime to nickel size hail fell at the intersection of Hesse Highway and Rock Crusher Rd. |
| June 2011 | Thunderstorm Wind | Walhalla | - | Multiple trees were blown down in the Walhalla area. |
| June 2010 | Thunderstorm Wind | Walhalla | - | Multiple trees were blown down in and around Walhalla. |
| August 2010 | Thunderstorm Wind | Walhalla | - | Multiple trees and power lines were blown down from the west side of Walhalla to the downtown area. One tree was blown onto a home near Muller Rd and Coffee Rd. |
| July 2008 | Thunderstorm Wind | Walhalla | - | Trees were blown down on Unity Church Rd. |
| July 2007 | Thunderstorm Wind | Walhalla | - | Several trees blown down in the Walhalla area. |
| August 2006 | Thunderstorm Wind | Walhalla | - | A couple trees blown down. |
| June 2005 | Thunderstorm Wind | Walhalla | - | Trees down and a power outage off highway 188 around Lake Keowee. |
| August 2005 | Thunderstorm Wind | Walhalla | - | Trees down. |
| August 2005 | Thunderstorm Wind | Walhalla | - | Several trees down across the county, with most of the damage concentrated along highway 183. |
| June 2004 | Thunderstorm Wind | Walhalla | - | Numerous trees were blown down. |
| July 2004 | Thunderstorm Wind | Walhalla | - | Several trees were blown down, and the tops were sheared out of several other trees in a small section of Oconee State Park. One tree fell through a tent, narrowly missing its occupants. |
| August 2004 | Thunderstorm Wind | Walhalla | - | Several trees were blown down. There were also sporadic power outages throughout the county. |
| November 2004 | Thunderstorm Wind | Walhalla | - | Trees blown down in the Friendship Community on Campbell Bridge Rd. |
| July 2003 | Thunderstorm Wind | Walhalla | - | A couple of trees were blown down. |
| June 2002 | Thunderstorm Wind | Walhalla | - | Some trees were blown down along Highway 11. |
| July 2002 | Thunderstorm Wind | Walhalla | - | A tree and several large limbs were blown down in and around Walhalla. |
| June 2001 | Hail | Walhalla | - | Storm spotter reported golfball-sized hail. |
| July 2001 | Thunderstorm Wind | Walhalla | - | Numerous trees and power lines down around Keowee Key, and as far west as West Union. One person was trapped in a car by a fallen tree. At least 100 trees were knocked down onto roads, and another 100 on private property. |
| July 2001 | Hail | Walhalla | - | Quarter-sized hail reported just outside Walhalla. |
| April 2012 | Hail | Walhalla | - | no account filed |
| March 2012 | Hail | Walhalla | - | no account filed |
| June 2008 | Hail | Walhalla | - | no account filed |
| June 2007 | Hail | Walhalla | - | no account filed |
| May 2006 | Thunderstorm Wind | Walhalla | - | no account filed |
| July 2006 | Hail | Walhalla | - | no account filed |
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