| August 1997 | Hail | Cooperstown | 1 hurt, $5,000,000 | The hail began near Jessie, cut a 3 by 12 mile long swath of damage, and ended 3 miles south of Cooperstown. The hail lasted for 15 minutes in Cooperstown, breaking windows, and damaging homes and businesses. One car dealership sustained $400,000 worth of damages. 20,000 acres of crops were destroyed, the equivalent of 20 farms. A 15 year-old girl, driving in the storm, suffered minor cuts due to flying glass. One hailstone recovered near Cooperstown measured 4 by 7 inches. |
| August 2006 | Thunderstorm Wind | Cooperstown | $9,060,000 | Thunderstorm downburst winds funneled down the Sheyenne River Valley and blew numerous double-stack containers and BNSF railroad container cars off the south side of the Luverne Trestle Bridge. At least 76 containers were destroyed after plunging up to 150 feet into the valley below. The bridge is located about 2 miles west of Luverne. Peak winds were estimated at 85 mph. |
| June 1999 | Thunderstorm Wind | Cooperstown | $100,000 | The front of a barn was blown off, a machine shed was destroyed, and a garage was toppled onto 2 vehicles inside. Some debris was scattered more than a mile away. |
| August 2011 | Flash Flood | Cooperstown | $25,000 | Several sections of farmland and farm access roads were flooded across portions of Sverdrup and Broadview townships. |
| June 1999 | Thunderstorm Wind | Cooperstown | $20,000 | A barn was blown down by the wind. A dozen sheep inside the barn were killed. |
| August 2011 | Flood | Cooperstown | $10,000 | Overland flooding continued east and southeast of Cooperstown after 3 to 6 inches of rain fell. |
| June 1999 | Thunderstorm Wind | Cooperstown | $10,000 | Tree branches were blown down on city streets. One tree landed on top of a recreational vehicle. |
| July 2001 | Flash Flood | Cooperstown | $5,000 | The city park was flooded and water was 2 feet deep on streets downtown. |
| July 1999 | Thunderstorm Wind | Cooperstown | $5,000 | Trees and power lines were downed. |
| August 2001 | Thunderstorm Wind | Cooperstown | $3,000 | Branches were blown down. |
| July 2002 | Thunderstorm Wind | Cooperstown | $2,000 | Trees were blown down in Cooperstown. |
| September 2017 | Tornado (EF0) | Cooperstown | $1,000 | This tornado tracked intermittently for about two miles across a portion of the Sheyenne River Valley. Large tree branches were broken down in various shelterbelts and groves along the path, mainly along the valley edge. Peak winds were estimated at 75 mph. |
| August 2002 | Thunderstorm Wind | Cooperstown | $500 | Large tree branches were blown off. |
| August 2001 | Thunderstorm Wind | Cooperstown | $500 | Branches were blown down. |
| July 2001 | Thunderstorm Wind | Cooperstown | $500 | Branches were blown down. |
| August 2002 | Thunderstorm Wind | Cooperstown | $200 | Tree limbs were blown down. |
| June 2025 | Thunderstorm Wind | Cooperstown | - | NDAWN station 2W of Cooperstown reported a wind gust of 63 mph. Mesonet station 321766 Cooperstown ND NDAWN. |
| June 2025 | Thunderstorm Wind | Cooperstown | - | Personal weather station via Weather Underground, I.D. Ronald Reagan Minuteman Missile SHS - KNDCOOPE6. Measured gust to 59 mph. Duration of severe gusts 15 minutes. Extreme wind gusts associated with MCV on backside of derecho. |
| June 2025 | Thunderstorm Wind | Cooperstown | - | NDAWN station 2W of Cooperstown measured a 72 mph wind gust at the 10 meter sensor. Mesonet station 321766 Cooperstown ND NDAWN. |
| June 2023 | Hail | Cooperstown | - | Public reports quarter sized hail covering the ground. |
| June 2022 | Thunderstorm Wind | Cooperstown | - | Received a wind report of 58 mph as measured from a personal weather station. |
| June 2021 | Thunderstorm Wind | Cooperstown | - | Peak wind was measured at an NDAWN station. |
| June 2021 | Thunderstorm Wind | Cooperstown | - | Peak gust of 81 mph reported at the Cooperstown Airport AWOS. |
| September 2020 | Thunderstorm Wind | Cooperstown | - | The wind gust was measured by a Davis mesonet sensor. |
| June 2020 | Hail | Cooperstown | - | Two inches of rain also fell. The ground was white with hail. |
| June 2020 | Thunderstorm Wind | Cooperstown | - | The wind gust was measured by a NDAWN mesonet sensor. |
| June 2020 | Thunderstorm Wind | Cooperstown | - | The wind gust was measured by a personal weather station. |
| September 2017 | Funnel Cloud | Cooperstown | - | A funnel cloud was observed just west of the Steele County line in far southeast Romness Township. |
| July 2017 | Thunderstorm Wind | Cooperstown | - | A corn field was shredded by hail and strong winds. |
| July 2017 | Thunderstorm Wind | Cooperstown | - | The wind gust was measured by a NDAWN station. |
| July 2016 | Thunderstorm Wind | Cooperstown | - | The wind gust was measured at the NDAWN mesonet site along highway 200 at highway 1. The station also reported 62 mph at 629 pm CDT. |
| June 2013 | Thunderstorm Wind | Cooperstown | - | The wind gust was measured at the Cooperstown airport. |
| October 2013 | Funnel Cloud | Cooperstown | - | A funnel cloud was briefly observed. |
| August 2011 | Thunderstorm Wind | Cooperstown | - | The wind gust was measured at the Cooperstown airport. |
| June 2011 | Thunderstorm Wind | Cooperstown | - | Many large tree branches were blown down. |
| July 2008 | Hail | Cooperstown | - | Golfball sized hail and a wall cloud were observed just west of the intersection of highway 45 and highway 32. |
| July 2007 | Hail | Cooperstown | - | Pea to quarter sized hail fell along with very heavy rain. |
| April 2006 | Flash Flood | Cooperstown | - | Water covered roads northeast of Cooperstown. |
| August 2006 | Thunderstorm Wind | Cooperstown | - | A 2 inch diameter metal flagpole was bent over by the wind. |
| June 2005 | Thunderstorm Wind | Cooperstown | - | Many trees were blown down all over town. Highway 45 was blocked by fallen trees and tree limbs. |
| August 2004 | Hail | Cooperstown | - | The ground was white with hail. |
| June 2003 | Thunderstorm Wind | Cooperstown | - | Large tree branches were blown down. |
| July 2001 | Flash Flood | Cooperstown | - | Water was reported over highway 200 with many fields and ditches full. |
| May 2000 | Hail | Cooperstown | - | Hail completely covered the ground. |
| June 2020 | Hail | Cooperstown | - | no account filed |
| September 2019 | Hail | Cooperstown | - | no account filed |
| June 2017 | Hail | Cooperstown | - | no account filed |
| June 2015 | Hail | Cooperstown | - | no account filed |
| June 2006 | Hail | Cooperstown | - | no account filed |
| June 2006 | Hail | Cooperstown | - | no account filed |
| August 2006 | Hail | Cooperstown | - | no account filed |
| August 2006 | Hail | Cooperstown | - | no account filed |
| May 2005 | Hail | Cooperstown | - | no account filed |
| June 2005 | Funnel Cloud | Cooperstown | - | no account filed |
| May 2004 | Hail | Cooperstown | - | no account filed |
| August 2004 | Hail | Cooperstown | - | no account filed |
| August 2004 | Hail | Cooperstown | - | no account filed |
| July 2003 | Hail | Cooperstown | - | no account filed |
| June 2002 | Hail | Cooperstown | - | no account filed |
| June 2002 | Hail | Cooperstown | - | no account filed |