| July 1994 | Thunderstorm Wind | Shamrock | $500,000 | Thunderstorms across the central Texas panhandle produced dime- to quarter-size hail and 60 mph winds. These reports came for EOC's, Sheriff Offices, radio stations, and storm spotters. In Wheeler County thunderstorm winds took portions of the roof from the Best Western Irish Inn and deposited it on six cars, exposing 18 rooms. Total wind damage in the community of Shamrock was in excess of $200K. |
| June 1997 | Hail | Shamrock | $250,000 | Numerous reports of golfball to baseball size hail in Shamrock and there was extensive damage. |
| March 2024 | Tornado (EF1) | Shamrock | $75,000 | This quick, brief tornado touched down to the north of I-40. Spotters reported a funnel cloud had crossed I-40, but no damage was noted. The tornado caused damage to the Dalton O Gorman Rodeo Arena. Here it caused roof damage where a large section of the eastern half of the roof was blown off and the south facing wall was blown down. No other damage occurred in this area so it is believed to be a narrow path. The tornado|lifted soon thereafter. The estimated winds with this tornado was 100mph. |
| April 2001 | Thunderstorm Wind | Shamrock | $70,000 | An eighteen wheeler was reported blown over and a house lost its roof. |
| June 2007 | Thunderstorm Wind | Shamrock | $67,000 | Reported that three semi trucks had been blown over near the town of Shamrock. No injuries or fatalities were reported. |
| June 1996 | Thunderstorm Wind | Shamrock | $50,000 | no account filed |
| December 1993 | Thunderstorm Wind | Shamrock | $50,000 | no account filed |
| May 1995 | Hail | Shamrock | $25,000 | no account filed |
| March 2007 | Thunderstorm Wind | Shamrock | $23,000 | Metal building roof caved in and windows and doors were blown out by the high winds. Two houses had their roof raised and several trees with eight inch diameter limbs were blown down. No injuries were reported. |
| February 2023 | Thunderstorm Wind | Shamrock | $15,000 | Power lines were reported down in Shamrock. |
| June 1999 | Thunderstorm Wind | Shamrock | $15,000 | Report of eighteen-wheeler blown over on the eastern edge of Shamrock on Interstate 40. |
| October 2000 | Thunderstorm Wind | Shamrock | $10,000 | Tractor-trailer trucks were reported blown over by the high winds. |
| April 2012 | Hail | Shamrock | $10,000 | no account filed |
| June 2007 | Hail | Shamrock | $2,000 | Also reported that winds of less than fifty knots caused tree limb damage in the town of Shamrock along with power outages and that the heavy rainfall resulted in brief ponding of water on roadways. |
| June 2012 | Thunderstorm Wind | Shamrock | $500 | The thunderstorm wind gusts caused multiple horse trailers to be flipped over as relayed by the National Severe Storms Laboratory. There were no reports of injuries or fatalities. |
| February 2000 | Thunderstorm Wind | Shamrock | $500 | no account filed |
| June 2024 | Flood | Shamrock | - | Public reports of water covering roads and ponding on main street on the north side of Shamrock were received. |
| May 2019 | Hail | Shamrock | - | Late report of half dollar hail. Time estimated by radar. |
| May 2016 | Hail | Shamrock | - | Quarter size hail was reported 1 mile north-northwest of Shamrock, with no accumulation. |
| May 2016 | Hail | Shamrock | - | One inch hail fell in Wheeler. |
| April 2015 | Hail | Shamrock | - | Law enforcement received golf ball size hail 5 miles east-northeast of Shamrock, Texas. |
| May 2015 | Tornado (EF0) | Shamrock | - | This was the third tornado to cycle from the same parent supercell thunderstorm, and the smallest of the three. The exact location and times of the beginning and ending points of the tornado are estimated using spotter reports, radar and survey results as end points were not accessible and occurred in open farmland. Damage was consistent with EF-0 along the path. |
| May 2013 | Hail | Shamrock | - | A thunderstorm moved over the city of Sherman (Wheeler County) during the afternoon hours of the 8th. While over the city, the thunderstorm produced hail up to the size of golf balls as reported by a trained storm spotter. |
| May 2013 | Hail | Shamrock | - | A thunderstorm moved over the city of Sherman (Wheeler County) during the afternoon hours of the 8th. While over the city, the thunderstorm produced hail up to the size of golf balls as reported by law enforcement. |
| August 2013 | Heavy Rain | Shamrock | - | Both discrete thunderstorms and a line of thunderstorms moved across Wheeler County during the late evening hours of the 8th. Both produced heavy rain in Shamrock (Wheeler County) which lead to minor flooding in and around the city as reported by local law enforcement. No swift water rescues or stranded motorist were reported in association to this flooding. The minor flooding quickly dissipated as the heavy rain moved out of the city. |
| August 2012 | Hail | Shamrock | - | The hail was reported by the Texas Department of Public Safety on Interstate 40 in the town of Shamrock, Texas. |
| July 2004 | Thunderstorm Wind | Shamrock | - | Reported by Texas Department of Public Safety officer on Interstate 40 in Shamrock. |
| September 2003 | Flash Flood | Shamrock | - | Flash flooding reported in the town of Shamrock where a two mile stretch of U.S. Highway 66 was underwater and numerous streets were completely underwater. |
| April 1997 | Flash Flood | Shamrock | - | Interstate 40 closed due to high water which also moved 12,000 pound construction concrete blocks. |
| May 1997 | Tornado (F0) | Shamrock | - | Tornado reported in Pakan community. |
| May 1995 | Hail | Shamrock | - | Thunderstorms produced dime- to golf ball-size hail. In Dumas the large hail damaged several automobiles and fell to a depth of two inches in places. |
| May 1995 | Tornado (F0) | Shamrock | - | A significant severe weather day with five tornadoes and hail up to softball-size. Damage in Pampa was estimate at over $200,000. The majority of the remaining damage occurred to automobile along highway corridors. All five tornadoes we over open county and were reported by Skywarn spotters, Vortex spotters or local TV meteorologists. |
| April 2024 | Hail | Shamrock | - | no account filed |
| June 2023 | Hail | Shamrock | - | no account filed |
| May 2022 | Hail | Shamrock | - | no account filed |
| May 2022 | Hail | Shamrock | - | no account filed |
| April 2019 | Hail | Shamrock | - | no account filed |
| April 2019 | Hail | Shamrock | - | no account filed |
| May 2019 | Hail | Shamrock | - | no account filed |
| June 2012 | Hail | Shamrock | - | no account filed |
| April 2012 | Hail | Shamrock | - | no account filed |
| April 2012 | Hail | Shamrock | - | no account filed |
| April 2012 | Hail | Shamrock | - | no account filed |
| April 2012 | Hail | Shamrock | - | no account filed |
| April 2012 | Hail | Shamrock | - | no account filed |
| June 2012 | Hail | Shamrock | - | no account filed |
| April 2009 | Hail | Shamrock | - | no account filed |
| April 2009 | Hail | Shamrock | - | no account filed |
| July 2009 | Hail | Shamrock | - | no account filed |
| July 2009 | Hail | Shamrock | - | no account filed |
| June 2007 | Thunderstorm Wind | Shamrock | - | no account filed |
| June 2007 | Thunderstorm Wind | Shamrock | - | no account filed |
| May 2007 | Hail | Shamrock | - | no account filed |
| April 2006 | Hail | Shamrock | - | no account filed |
| April 2006 | Hail | Shamrock | - | no account filed |
| June 2006 | Hail | Shamrock | - | no account filed |
| May 2006 | Hail | Shamrock | - | no account filed |
| May 2006 | Thunderstorm Wind | Shamrock | - | no account filed |
| April 2005 | Hail | Shamrock | - | no account filed |
| April 2004 | Hail | Shamrock | - | no account filed |