• 1955: A tornado (F2) moved NNW from 16 miles Southwest of Aberdeen, in the Townships of Good Hope and Highland. Only the houses were left intact on the four farms that were torn apart. Also, an F2 tornado destroyed barns 8 miles Southeast of Gettysburg causing $8,000 in damage. In Corson and Dewey Counties, two F0 tornadoes touched down, one after the other, causing over $3,000 worth of damage and injuring two people. An additional tornado (F2) moved NNW in Clear Lake and Richland Townships. Buildings were damaged on five farms.
• 1971: An unofficial rainfall amount of 6 inches in 24 hours was reported at White River. An official amount of 4 plus inches was reported at Murdo, causing the washout of a railroad and derailment of a freight train. The Ghost Hawk Dam broke on the Rosebud Indian Reservation and the flood waters damaged a trailer home and two cars. Flooding occurred along the Bad, White, and Little White Rivers and Pine Creek.
• 1775: The first engagement of the Revolutionary War took place in clear, crisp weather at Lexington-Concord.
• 1968: An F4 tornado struck Sebastian County, AR leaving 14 dead and 270 injured. Much of Greenwood was reduced to a sea of rubble.
• 1976: An F5 tornado swept a frame home away near Brownwood, TX. The owner had sought refuge in the bathtub, and he and the bathtub were all that remained after the tornado blew the house away. Several children caught in the open were blown nearly three quarters of a mile. Several hangars and planes were destroyed at the town's airport.