| May 1998 | Tornado (F2) | Benton | 11 hurt, $1,700,000 | A supercell thunderstorm, after dropping a couple tornadoes in northeast Iowa, eventually moved northeast into Lafayette county, creating another tornado. This tornado touched down just southwest of Benton and hopped/skipped northeast for 20 miles. It caused moderate to severe damage to 40 different farms and their outbuildings, and homes. Numerous power lines were downed. Eleven people were injured: 2 children near Cuba city, 3 children southwest of Truman, and 6 adults in a vehicle on Highway 81 south of Benton. Several farm fields sustained damage. |
| July 2018 | Thunderstorm Wind | Gratiot | 1 hurt, $200,000 | Downburst winds of 80 mph rolled and damaged 10 large campers. Nearby corn was flattened. |
| May 2003 | Tornado (F1) | Belmont | 1 hurt, $200,000 | A tornado spun up 5.0 miles southwest of the village Belmont (Lafayette Co.), near the intersection of Pine Tree and Field Drive, and proceeded to track northeast to near Belmont before dissipating 2.7 miles northeast of Belmont (just southeast of the intersection of Cottage Inn Road and Bethel Grove Rd). Just east of Belmont, the tornado destroyed a farm's mobile home, injuring one of five people inside. In addition, a pole shed on this farm was damaged. On two other farms, this tornado inflicted minor to extensive damage on homes, barns, wind mills, and decks. Law enforcement officials video taped this tornado; estimated at the top end of F1 (about 110 mph). |
| April 1967 | Tornado (F3) | not stated | $2,500,000 | no account filed |
| April 2006 | Hail | Darlington | $2,380,000 | no account filed |
| April 2006 | Hail | Belmont | $2,380,000 | no account filed |
| June 2014 | Tornado (EF1) | Leslie | $1,500,000 | A narrow path of EF1 tornado damage. Numerous trees and power poles down. A large calf barn was nearly completely destroyed, killing two calves. Several pole barns were completely destroyed. Minor roof damage to a couple homes. A garage blown off the foundation. |
| June 2024 | Tornado (EF2) | Lamont | $1,000,000 | Strong tornado developed west of Argyle and tracked to the north of it, hitting multiple barns and a church along it's path. |
| March 2023 | Tornado (EF1) | Ipswich | $1,000,000 | A number of farm buildings had substantial damage to them, particularly a large farm operation along County Road G where an empty grain bin was destroyed and a large shed lost it's I beam and the roof collapsed inward. A row of 13 power poles were snapped due to the wind. |
| May 1998 | Thunderstorm Wind | Countywide | $875,000 | no account filed |
| July 2009 | Hail | Benton | $500,000 | A 5-mile wide hail swath damaged crops (corn, soy beans, wheat, and alflafa), vehicles (dents and broken windows), and at least 25 homes (roofs, windows, and siding). This swath merged with another hail swath from an ealier storm that traveled from Northwest Lafayette County to southeast of Shullsburg. Some farm fiels were stripped to nothing by the hail stones.||Newspaper accounts indicated that the two hail swaths resulted in damage to 20,000 acres of corn and 10,000 acres of soybeans in Lafayette County. Using an avarge of 135 bushes of corn per acre with a price of $3.45 per bushels yields a corn loss of $9.315 M. Using an average of 38 bushels of soybeans per acre, and a price of $9.25 per bushel yields a soybean loss of $3.515 M. These loss estimates were divided by two and assigned to the two hail swaths equally. |
| July 2009 | Hail | Belmont | $500,000 | A 5-mile wide hail swath damaged crops (corn, soy beans, wheat, and alfalfa), vehicles (windows and dents), and at least 25 homes (windows, siding, and roofs). This hail swath merged with a another, later, hail swath, with the merger southeast of Shullsburg. Some fields southeast of Shullsburg were totally stripped by the hail stones.||Newspaper accounts indicated that the two hail swaths resulted in damage to 20,000 acres of corn and 10,000 acres of soybeans in Lafayette County. Using an avarge of 135 bushes of corn per acre with a price of $3.45 per bushels yields a corn loss of $9.315 M. Using an average of 38 bushels of soybeans per acre, and a price of $9.25 per bushel yields a soybean loss of $3.515 M. These loss estimates were divided by two and assigned to the two hail swaths equally. |
| August 2005 | Thunderstorm Wind | Shullsburg | $500,000 | Widespread tree damage, trees on homes, and barns damaged, were reported within a 5 mile corridor along Highway 11. |
| July 1994 | Tornado (F1) | Dickeyville | $500,000 | no account filed |
| July 1994 | Thunderstorm Wind | South Wayne | $500,000 | no account filed |
| July 1994 | Tornado (F1) | Woodford | $500,000 | no account filed |
| July 2017 | Flash Flood | Meekers Grove | $491,500 | Flash flooding of creeks and the Galena River in the far southwest portion of the county due to approximately 5 inches of rain. Roads, bridges, and culverts washed-out. Approximately 13 homes experienced very minor flooding with 2 homes with more substantial basement flooding. |
| July 1996 | Flash Flood | Blanchardville | $480,000 | no account filed |
| June 2008 | Flash Flood | Darlington | $462,160 | Heavy rains resulted in flash flooding from the Darlington area to Yellowstone Lake State Park. Water depths on road surfaces reached 3 feet or more and there were gravel washouts. Home damage totaled about $200 thousand. Business damage totaled about $100 thousand. Crop losses totaled about $300 thousand. Public sector damage totaled about $162,160. There were several roads and bridges that sustained damage. |
| April 1997 | Thunderstorm Wind | Darlington | $400,000 | no account filed |
| March 2023 | Tornado (EF1) | Leslie | $300,000 | Damage was mainly to a barn lean-to which was distributed through a field behind the facility. Another barn had roofing damage going in the opposite direction on the same grounds. |
| May 1999 | Flash Flood | South Portion | $250,000 | no account filed |
| May 1988 | Tornado (F3) | not stated | $250,000 | no account filed |
| May 1988 | Tornado (F1) | not stated | $250,000 | no account filed |
| August 1987 | Tornado (F1) | not stated | $250,000 | no account filed |
| June 1984 | Tornado (F2) | not stated | $250,000 | no account filed |
| June 1969 | Tornado (F2) | not stated | $250,000 | no account filed |
| September 1963 | Tornado (F1) | not stated | $250,000 | no account filed |
| May 1958 | Tornado (F2) | not stated | $250,000 | no account filed |
| July 2011 | Thunderstorm Wind | Belmont | $200,000 | Law enforcement reported damage in a 15-mile wide swath from southwest of Belmont to Woodford from thunderstorm wind gusts estimated at 75 mph (65 knots). Downed trees blocked roads and fallen power lines caused power outages in the towns of Belmont, Argyle and Darlington. Six homes were damaged, and a 100-year-old 38 foot by 100 foot barn was flattened on a farm near Argyle, damaging a tractor inside. |
| August 2002 | Thunderstorm Wind | Lamont | $110,000 | no account filed |
| October 2019 | Thunderstorm Wind | Calamine | $100,000 | A swath of snapped and uprooted trees and flattened corn. Some structural damage to homes and farm buildings. A large tree limb fell on a truck. |
| June 2015 | Thunderstorm Wind | Ipswich | $100,000 | Three pole barns and one small barn all located southwest of Belmont suffered severe damage with the lost of the roofs and some walls collapsed. Large trees uprooted and snapped in Belmont. Trees down on one house causing severe roof damage and a couple mobile homes suffering minor damage from fallen trees or the high winds. Scattered trees and power lines were reported down throughout the remainder of the county. |
| July 2009 | Tornado (EF0) | Seymour Corners | $100,000 | A weak tornado spun up a little north of the intersection of CTH Q and Prairie Rd. (about 4 miles northwest of Shullsburg). It proceded to move on a 145 degreee bearing southeast to just southeast of the intersecton of CTH U and Jackson Rd. a couple miles north-northeast of Shullsburg. Major damage was inflicted on a barn and storage pole shed, several trees were uprooted or snapped, and some minor damage was inflicted on a corn field. The specific starting and ending GPS coordinates were 42.63011/-90.26829 and 42.59963/-90.21671, and the damage intensity was based on DI 1 (SBO), DOD 8. The average width was about 30 yards. The wind was estimated to be about 105 mph. |
| August 2007 | Flash Flood | Darlington | $100,000 | Flash flooding occurred in scattered locations between the northwest side of Darlington to the extreme northeast corner of Lafayette County. Just northwest of Darlington, a road was closed due to fast flowing water covering the road to a depth of 1 to 2 feet. Just east of Blanchardville, CTH H was closed due to fast-flowing water covering that road to a depth of 1 to 2 feet. Some mudslides, soil erosion, and crop losses were also noted. At least 20 homes had some water damage to basement contents. WSR-88D Doppler overnight rainfall estimates ranged from around 2 inches over the southern part of the county to 5 to 6 inches over the northern half. |
| August 2005 | Thunderstorm Wind | South Wayne | $100,000 | Barns, trees, and sheds damaged. |
| August 2005 | Thunderstorm Wind | Argyle | $100,000 | A building was destroyed and numerous trees were damaged. |
| May 2004 | Flash Flood | Benton | $100,000 | Several reports of houses flooded, people evacuated, mudslides destroyed freshly planted crops. |
| June 2000 | Tornado (F1) | Calamine | $100,000 | no account filed |
| April 1997 | Thunderstorm Wind | Gratiot | $100,000 | no account filed |
| May 2024 | Thunderstorm Wind | Dunbarton | $50,000 | Straight-line winds of approximately 90 mph snapped numerous trees greater than half way up the trees. Also multiple farm outbuildings and sheds were damaged including one calf barn that was completely destroyed. Debris was lying from southwest to northeast. |
| August 2021 | Thunderstorm Wind | Shullsburg | $50,000 | Many trees, grain bins, and power lines down in the southern part of Lafayette County, especially near Martin Rd, County Highway P, and County Highway W. |
| July 2019 | Thunderstorm Wind | Fayette | $50,000 | Multiple grain and fertilizer bins blown over or collapsed. The roof and wall on one end of a pole barn severely damaged with the debris damaging a home and cattle building. Minor damage to a home when a swing set was blown into it. A portion of the roof to a small and old shed pealed off. Another small shed blown over. An uprooted tree. |
| August 2009 | Thunderstorm Wind | Yellowstone Lake State Park | $50,000 | Law enforcement reported numerous trees and power lines down in a 3-mile wide swath over northeastern Lafayette County. The damage swath extended north into Iowa County and east-northeast into the counties of Green and Dane. Roof damage was also reported on several homes. Outside of the city of Blancardville, a barn was blown down. |
| July 2009 | Tornado (EF0) | New Digging | $50,000 | A weak tornado spun up about 1/3 mile south-southwest of the intsection of STH 11 and CTH I, or roughly a couple northeast of New Diggings. It proceded to move on a 122 degreee bearing southeast to about 1/3 mile east of the intersecton of CTH O and Blackhawk Rd., about 3.5 miles southeast of Shullsburg. A small pole shed was destroyed and small portions of a side-wall and roof of a home were peeled off. Otherwise several trees were uprooted or snapped. The specific starting and ending GPS coordinates were 42.55270/-90.31193 and 42.52115/-90.24236, and the damage intensity was based on DI 1 (SBO), DOD 6. The average width was about 25 yards. The wind was estimated to be about 90 mph. |
| August 2007 | Flash Flood | Shullsburg | $50,000 | Flash flooding occurred south of the Village of Shullsburg due to repeated thunderstorms with heavy rains on top of a saturated ground. CTH O south of Shullsburg was coverd with fast-flowing water depths of 6 inches to 1 foot. One mile south of the village a mudslide occurred onto CTH O. Hourly rainfall rates were 1.5 to 2 inches based on WSR-88D Doppler radar estimates. Soil erosion and crop damage also occurred on several other farms in that area. Additionally, a few basements had water damage to contents. Most creeks and streams in the area exceeded flood stage by one to two feet.||August, 2007, rainfall totals include: 16.98 at Arygle, and 17.22 at Blanchardville. |
| May 2000 | Flash Flood | South Portion | $50,000 | no account filed |
| June 2014 | Thunderstorm Wind | Woodford | $45,000 | A 60 foot by 120 foot pole barn was mostly leveled. The steel sheeting from the barn was blown about 1/4 mile to the northeast. The collapse of the pole barn damaged tractors, a combine, and other farm equipment. Another farm lost roofs from two sheds and several large trees were downed with a fallen tree totaling a car. At yet another residence, fallen trees damaged two buildings. Finally another residence had a 16 inch spruce tree snapped off at the base and it partially landed on the home damaging the sofitts and gutters. |
| August 2021 | Thunderstorm Wind | Belmont | $40,000 | Dispatch reported damage to home caused by a falling tree and a downed tree on Olson Lane, SSE of Mineral Point. |
| September 2013 | Thunderstorm Wind | Benton | $40,000 | Numerous trees and power lines down. |
| July 2018 | Thunderstorm Wind | Gratiot | $30,000 | Much of the roof of a large barn collapsed. |
| June 2014 | Thunderstorm Wind | Leslie | $30,000 | The roof of a poll shed was removed. A couple campers were rolled by the wind onto the median of highway 151. |
| June 2014 | Thunderstorm Wind | Darlington Arpt | $30,000 | Minor damage to several outbuildings. A guard rail fence was leveled by straight line winds. The wooden posts of the fence were snapped at the base. |
| June 2014 | Tornado (EF1) | Leslie | $30,000 | Numerous downed trees and snapped trees through the woods. |
| June 2014 | Thunderstorm Wind | Fayette | $30,000 | A large poll shed was mostly destroyed by straight line winds. |
| July 2009 | Flash Flood | Belmont | $30,000 | Heavy rains from severe thunderstorms produced flash flooding that washed out the gravel shoulders of roads in and near Belmont in Lafayette County. Damage due to the flash flooding totaled $30,000. Rainfall estimates from National Weather Service radar totaled 2 to 3 inches during this time. |
| July 2009 | Flash Flood | New Digging | $30,000 | Repeated heavy rains from a couple thunderstorms resulted in flash flooding in the area from New Diggings to southeast of Shullsburg. All rivers and streams in this area rose above flood stage, and many roads had water over them. Some roads had depths of 2 to 3 feet of fast-flowing water. Several of the gravel shoulders were washed out, and lots of vegetative debris was left on some roads. |
| September 2000 | Lightning | South Wayne | $30,000 | no account filed |
| June 2014 | Thunderstorm Wind | Wiota | $25,000 | A barn was destroyed. |
| August 2007 | Thunderstorm Wind | Belmont | $25,000 | Powerful thunderstorm wind gusts to 52 knots (60 mph) toppled several large trees and damaged several power-lines. |