| May 2014 | Tornado (EF2) | Grafton | $3,500,000 | This tornado traveled rural areas of northern Fillmore County, bumping the York County line along the way. It touched down a few miles north-northwest of Grafton and lifted a few miles north-northeast of Fairmont. One home suffered damage when part of the roof was torn away, while another older home was pushed approximately 30 feet off of its foundation. There was widespread power pole and tree damage, with some trees containing debris from grain bins, and a number of irrigation pivots were overturned. The peak wind with this tornado was estimated to be 120 MPH. South of the main tornado track, strong rear flank downdraft winds resulted in additional power pole and irrigation pivot damage, and an outbuilding suffered damage near Highway 81 north of Fairmont. |
| May 2014 | Tornado (EF3) | Grafton | $1,500,000 | This is the continuation of the EF3 tornado that started in Clay County northwest of Fairfield.||This tornado was reported initially as a multi-vortex tornado for several miles before taking on a more traditional look south of Saronville, where it was described as a wedge tornado. Based upon reports and video, it appears the entire mesocyclone of the storm was near ground level southwest of Sutton. It was one of the strongest tornado of the day in south central Nebraska, rated an EF3 with the peak wind estimated to be 150 MPH. Rear flank downdraft winds resulted in damage on the south side of the tornado track and in addition to the damage to Sutton itself, areas east of Clay Center, southwest of Sutton through northwest of Grafton were affected. Power poles and trees were damaged or snapped, irrigation pivots were overturned, and a few homes and outbuildings suffered damage.||Damage from this tornado was first noted north of Fairfield, where large tree limbs were knocked down and power poles broken. The tornado shifted mainly east across Highway 14 south of Clay Center, with additional tree damage as well as irrigation pivots overturned. It then started to move to the northeast, crossing Highway 41 east of Clay Center and Highway 6 a few miles west of Sutton, but powerful rear flank downdraft winds of 100 mph hammered Sutton and areas south-southwest of town, causing widespread property damage. Moving in between Saronville and Sutton, the tornado then started a more east-northeast path, crossing Road 6 north of Sutton before dissipating approximately 5 miles northeast of town.||As the tornado approached and crossed Highway 6 it intensified to it strongest point. Damage peaked a few miles north of Sutton, where the EF-3 rating was assigned, resulting from the destruction of a home. Elsewhere along the path, a few other homes sustained less significant damage than the one north of Sutton, and a number of other outbuildings and grain bins were also damaged or destroyed. Many trees were damaged, destroyed or contained debris (mainly from destroyed grain bins), irrigation pivots were overturned and power poles broken. |
| August 2025 | Thunderstorm Wind | Grafton | $1,000,000 | The highest measured wind gusts near and along this path included the following: 91 MPH, measured by a mesonet station located three miles south-southeast of Fairmont; 86 MPH, measured by a mesonet station located two miles northeast of Exeter; 75 MPH, measured by a mesonet station located four miles southeast of Sutton; 74 MPH, measured by a mesonet station located two miles south of Exeter. There were several reports of tree damage along this path, including the Grafton and Fairmont areas. Power outages and line damage was also reported. In the Fairmont area, at least one grain bin was destroyed, and a semi was tipped over. |
| June 2019 | Hail | Grafton | $250,000 | Quarter to golf ball size hail was accompanied by 50 to 60 MPH wind gusts. |
| June 2015 | Flood | Grafton | $250,000 | Multiple rounds of heavy rainfall totaled generally 4-7 across much of Fillmore County between the 3rd-6th, with the majority of this rain falling on the 4th-5th. The cumulative effects of multiple heavy rains resulted in significant flooding along the West Fork Big Blue River and its smaller stream tributaries in the northern part of the county, mainly on the 6th-7th. Reports indicated that this may have been some the worst flooding observed along the river in 50-80 years. A few days of warm and dry weather settled in from June 7-9, allowing flood waters to largely recede. However, another focused area of 1.50-3.00 of heavy rain targeted the York and northern Fillmore counties area on the night of the 10th into the morning of the 11th. This again pushed the West Fork Big Blue River out of its banks in the McCool Junction area from the 11th into the 12th, before this multiple-day flooding event finally came to a close. |
| June 2021 | Thunderstorm Wind | Grafton | $180,000 | Wind gusts estimated to be near 70 MPH knocked three irrigation pivots over near Road H between Roads 5 and 6. |
| July 2023 | Hail | Grafton | $100,000 | no account filed |
| April 2005 | Hail | Grafton | $100,000 | no account filed |
| May 2004 | Hail | Grafton | $100,000 | no account filed |
| July 2024 | Tornado (EF1) | Grafton | $75,000 | A QLCS tornado affected portions of eastern Clay County and western Fillmore County. This tornado touched down at approximately Road 315 and Z Road south of Sutton, then moved north-northeast where it impacted a farmstead along Z Road, just north of Road 316. Within this stretch of the tornado, several EF1 damage points were noted, particularly with respect to several large wooden power poles snapped, uprooted trees, and destroyed small grain bins. The grain bins were carried approximately 300 to 400 yards downstream into a nearby corn field that also sustained pivot damage. Small farm implements were also carried downwind, and a small chicken coop and other outbuildings were destroyed. Fortunately, the house received only minor damage to the siding. The tornado lifted shortly thereafter just northeast of the farmstead. In addition, a broad swath of severe crop damage was noted in the vicinity of and to the south of the tornado track, likely due to a combination of large hail and straight-line wind gusts of 60-80 MPH. Here, five foot tall healthy corn plants were reduced to 1-2 foot stalks, and bean fields were nearly unrecognizable. The peak wind gust was estimated to be 110 MPH, and the tornado width was based on power line damage south of the impacted farmstead. |
| May 2019 | Flood | Grafton | $50,000 | Heavy rainfall resulted in flooding along area creeks and rivers across northern portions of Fillmore County, including School Creek and the West Fork of the Big Blue River. Some rural roads and bridges were covered with water. |
| May 2005 | Thunderstorm Wind | Grafton | $50,000 | no account filed |
| June 1997 | Thunderstorm Wind | Grafton | $40,000 | no account filed |
| October 2020 | Thunderstorm Wind | Grafton | $30,000 | Wind gusts estimated to be near 65 MPH damaged some empty grain bins. |
| July 2007 | Flash Flood | Grafton | $30,000 | no account filed |
| April 2014 | Hail | Grafton | $25,000 | The report, along with a photo, was received via Twitter. |
| June 1997 | Hail | Grafton | $25,000 | no account filed |
| May 2004 | Thunderstorm Wind | Grafton | $5,000 | no account filed |
| May 1998 | Hail | Grafton | $5,000 | no account filed |
| July 2008 | Thunderstorm Wind | Grafton | $2,000 | Winds accompanied by dime size hail. |
| June 1998 | Thunderstorm Wind | Grafton | $1,000 | no account filed |
| July 2024 | Thunderstorm Wind | Grafton | - | Wind gusts were estimated to be near 60 MPH, accompanied by dime size hail. |
| March 2020 | Hail | Grafton | - | Hail was mostly pea sized, with a few stones as large as a quarter. |
| June 2019 | Thunderstorm Wind | Grafton | - | Estimated wind gusts of 50 to 60 MPH accompanied quarter to golf ball size hail. |
| May 2014 | Tornado (EF0) | Grafton | - | This tornado location was determined from video and chaser reports. An experienced meteorologist and others have reported that this tornado rotated anti-cyclonically, or the opposite direction most tornadoes rotate. Radar imagery and video suggest the anti-cyclonic circulation could have occurred, although the rotational direction could not be confirmed via field survey. No damage was reported with this tornado. |
| April 2005 | Tornado (F0) | Grafton | - | A tornado in far northwest Fillmore County knocked over an irrigation center pivot system on its short path. |
| April 2023 | Hail | Grafton | - | no account filed |
| July 2022 | Hail | Grafton | - | no account filed |
| June 2019 | Hail | Grafton | - | no account filed |
| October 2016 | Hail | Grafton | - | no account filed |
| April 2012 | Hail | Grafton | - | no account filed |
| April 2009 | Hail | Grafton | - | no account filed |
| September 2006 | Thunderstorm Wind | Grafton | - | no account filed |
| April 2005 | Funnel Cloud | Grafton | - | no account filed |
| May 2003 | Hail | Grafton | - | no account filed |
| August 1999 | Thunderstorm Wind | Grafton | - | no account filed |
| May 1996 | Hail | Grafton | - | no account filed |
| May 1996 | Hail | Grafton | - | no account filed |
| April 1994 | Hail | Grafton | - | no account filed |
| July 1994 | Thunderstorm Wind | Grafton | - | no account filed |
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