June 11, 1982:
Golf ball size hail fell in Hayti, creating three foot drifts of hail.
June 11, 1990:
Hail, up to golf ball size, cut a swath 1.5 miles wide and 50 miles in length from the Missouri River east to the Hyde County line. Thunderstorm winds destroyed a granary roof and downed numerous trees. Damage from large hail was considerable to crops with complete fields being wiped out. The County Agent placed crop damage estimates at 1.8 million dollars in Sully County. Hail also produced window damage to cars and homes.
June 11, 2008:
A strong inflow of moist and unstable air into and over a surface warm front resulted in training thunderstorms and very heavy rain across parts of northeast South Dakota. Rainfall amounts of 2 to 6 inches occurred across much of the area resulting in widespread flash flooding. Many roads, bridges, and cropland were damaged by the flooding. In Milbank, many basements were flooded and/or received sewer backup.
June 11, 2010:
Thunderstorms produced damaging winds over a large part of southeast South Dakota beginning just before midnight on June 10th, and continuing well into the predawn hours of June 11th. The storms also produced very heavy rain, which caused flash flooding at several locations. Heavy rainfall of at least 3 inches caused Enemy Creek to overflow and flood nearby roads. The rainfall also caused flooding of roads and basements in Mitchell. A motorcycle business was flooded, resulting in damage to merchandise, although little damage to the motorcycles was reported. Thunderstorm winds caused widespread damage in the Sioux Falls area. Wood and siding were blown off a new house and a nearby fence was blown over. The winds caused tree damage, including 2 to 3 foot diameter trees blown down. Debris from the tree damage blocked several roads. Garages were blown off three homes which were next to each other, and other nearby homes suffered significant damage in an area on West Eli Court which was subjected to the strongest winds, estimated at 100 mph. Windows were blown out in several of these homes, and a large camper was overturned in the same area. A wind gust of 74 mph was measured elsewhere in the city. The winds blew down out power lines in parts of the city. Heavy rain caused flash flooding of several streets in the southern part of Sioux Falls, with water up to two feet deep. Basement flooding was also reported.
|Record Highs:||Record Lows:|
|Aberdeen: 104 (1893)||Aberdeen: 31 (1938)|
|Kennebec: 104 (1893)||Kennebec: 36 (1903)|
|Mobridge: 103 (1956)||Mobridge: 37 (1947)|
|Pierre: 102 (1976)||Pierre: 38 (2011)|
|Sisseton: 99 (1976)||Sisseton: 32 (1903)|
|Timber Lake: 103 (1956)||Timber Lake: 36 (1947)|
|Watertown: 96 (1893)||Watertown: 31 (1903)|
|Wheaton: 95 (1976)||Wheaton: 44 (1984)|
|Aberdeen: 1.52" (2005)|
|Kennebec: 1.70" (2010)|
|Mobridge: 2.15" (1928)|
|Pierre: 1.46" (1943)|
|Sisseton: 2.14" (2008)|
|Timber Lake: 1.60" (1928)|
|Watertown: 1.77" (1943)|
|Wheaton: 1.52" (1915)|