1984: Heavy rains of up to seven inches caused the Bad River to rise over 23 feet in six hours at Fort Pierre. Flash flooding resulted as a dam, 17 miles west of Fort Pierre gave way and an irrigation dam near town was damaged. Some roads and bridges were covered by water. Many homes had water damage. Strong thunderstorm Winds gusting up to 60 mph downed numerous branches and several signs in Faulk, Edmunds, McPherson, and Brown Counties.

1991: Heavy rains of 3 to 7 inches caused street flooding in Harrold. Several county roads in Stanley, Sully, Hughes, and Lyman Counties were closed due to flooding. Some rainfall amounts include 1.83 inches at Oahe Dam; 1.96 inches, 12 miles SSW of Harrold; and 3.20 inches, two miles North of Onaka.

1993: An earthquake measuring 4.1 on the Richter scale shook a portion of northeast South Dakota but caused no real damage or injuries. The epicenter of the quake was 22 miles northwest of Morris, Minnesota or 38 miles east of Sisseton and was felt in most of Roberts, Grant, and Deuel Counties. The quake was the first in the area since 1975.

1860: Iowa's "Commanche Tornado" with wind speeds estimated in excess of 300 mph was unquestionably one of the worst experienced by early settlers, with nearly a million dollars in damage.

1871: The U.S.'s 15 minute rainfall record was set at Galveston, TX with 3.95".

1944: Weather conditions forced Supreme Allied Commander Dwight Eisenhower to postpone the invasion of France that had been scheduled for June 5.

1958: Severe storms swept through northwest Wisconsin. A half-mile wide F5 tornado moved at 52 mph from south of Woodville to east of Colfax. 20 people were killed. Also, an F4 tornado took four lives at Chippewa Falls, and another F4 killed four people near the small communities of Boyd and Stanley.