| September 2001 | Thunderstorm Wind | Williamsburg | 1 hurt | Thunderstorm wind gusting to 60 mph downed a tree, which fell on a person, who required treatment at a local hospital. Reported by law enforcement. |
| May 2003 | Hail | Williamsburg | $1,000,000 | no account filed |
| July 2008 | Thunderstorm Wind | Williamsburg | $25,000 | Wind gusts estimated to be 70 mph blew the roof off of a car wash about 1 mile north of Williamsburg, IA around 445 am July 21. This report was relayed by a broadcast media partner. |
| May 2004 | Tornado (F1) | Williamsburg | $10,000 | Also reported by Chaser |
| August 2004 | Thunderstorm Wind | Williamsburg | $3,000 | Trees and power lines down with several reports of estimated 43 knot (50 mph) winds west and east of Williamsburg. |
| July 1995 | Thunderstorm Wind | Williamsburg | $3,000 | no account filed |
| July 2017 | Tornado (EF1) | Williamsburg | $1,000 | Tornado was rated an EF-1 with peak winds of 105 mph, a path length of 4.58 miles, with a max width of 60 yards. The tornado produced damage to mainly trees and crops with two houses also sustaining damage to windows. |
| June 2012 | Thunderstorm Wind | Williamsburg | $1,000 | Wind gusts estimated to be 80 mph snapped a power pole in half along County Road M about 3 miles west of Williamsburg, IA at 500 pm CDT June 29. |
| July 1999 | Thunderstorm Wind | Williamsburg | $1,000 | Thunderstorm downburst winds downed trees in Williamsburg. |
| January 2023 | Tornado (EF1) | Williamsburg | - | A tornado developed just northeast of Williamsburg, and south of Interstate 80. The tornado blew over a semi tractor trailer on I-80, then continued to the northeast. The tornado caused minor damage to a cattle shelter, and tree damage at a farmstead, before lifting near U.S. Highway 151. The tornado was on the ground for roughly 8 minutes, along a path estimated at 4.7 miles. There were no injuries. Assistance from Iowa County Emergency Management in completing the survey is much appreciated. |
| April 2023 | Hail | Williamsburg | - | Trained spotter reported that hail was occurring at the moment of the report. |
| July 2023 | Thunderstorm Wind | Williamsburg | - | Emergency Manager reported an estimated 70 mph thunderstorm gust. |
| May 2023 | Hail | Williamsburg | - | Report received from Mping. |
| May 2019 | Thunderstorm Wind | Williamsburg | - | Measured by a home weather station. |
| May 2019 | Thunderstorm Wind | Williamsburg | - | Power lines were blown down. |
| May 2014 | Thunderstorm Wind | Williamsburg | - | Wind gusts estimated to be 60 mph blew a large tree branch down on the east side of Williamsburg, IA around 440 pm CDT May 12. |
| May 2013 | Flash Flood | Williamsburg | - | Law enforcement reported numerous county roads impacted by water. |
| May 2013 | Thunderstorm Wind | Williamsburg | - | A trained spotter reported 60 mph winds. |
| June 2012 | Thunderstorm Wind | Williamsburg | - | Wind gusts estimated to be 60 mph were observed in Williamsburg, IA at 512 pm CDT June 29. Trees of unknown size were heard breaking at the time. |
| August 2012 | Thunderstorm Wind | Williamsburg | - | Ten evergreen trees were blown down by thunderstorm winds. Time of the event was estimated using an earlier report, but it may have been from the first of two storms to impact this area around an hour earlier. |
| August 2012 | Thunderstorm Wind | Williamsburg | - | The public reported a wood and metal fence knocked over during a thunderstorm. Some of the posts were pulled completely out of the ground while others were broken off. A mobile home on the property was pushed over along with a pair of trailers on an adjacent lot. The garage door attached to the house was dented. |
| August 2012 | Thunderstorm Wind | Williamsburg | - | Emergency Manager reported that strong thunderstorm winds damaged power lines. Power was out at the mall. Time of the event was estimated by radar. |
| August 2012 | Thunderstorm Wind | Williamsburg | - | Emergency Manager reported several large trees down in Williamsburg with the power out in half of the town. The time of the event was estimated by radar. |
| May 2011 | Hail | Williamsburg | - | Two inch diameter hail fell 1 mile south southwest of Williamsburg, IA at 304 pm CDT May 22. |
| April 2010 | Hail | Williamsburg | - | Quarter sized hail fell on Interstate 80 near mile marker 225 about 6 miles east northeast of Williamsburg, IA at 525 pm April 5. |
| April 2010 | Hail | Williamsburg | - | Non-severe hail (<1.0) fell near Williamsburg, IA at 510 pm April 5. |
| July 2008 | Thunderstorm Wind | Williamsburg | - | Wind gusts estimated to be 70 mph blew down several trees in Williamsburg, IA around 445 am July 21. This report was relayed by a broadcast media partner. |
| June 2006 | Funnel Cloud | Williamsburg | - | numerous reports of funnel clouds along I-80 |
| June 2005 | Hail | Williamsburg | - | On Interstate 80 at mile marker 221 |
| July 2004 | Heavy Rain | Williamsburg | - | 2.50 inches in past 2.5 hours; water ponding on a gravel road. |
| July 2000 | Hail | Williamsburg | - | Penny-sized hail reported by NWS Cooperative Observer. |
| July 1997 | Thunderstorm Wind | Williamsburg | - | Large tree downed. |
| April 2023 | Hail | Williamsburg | - | no account filed |
| May 2023 | Hail | Williamsburg | - | no account filed |
| May 2011 | Hail | Williamsburg | - | no account filed |
| September 2000 | Hail | Williamsburg | - | no account filed |
| April 1999 | Hail | Williamsburg | - | no account filed |
Block
