August 1, 1978:
A severe thunderstorm developed in west central Beadle County during the afternoon hours and moved southeast. High winds near 80 mph and hail up to golf ball size pelted several counties along the storm path. Hail piled up to six inches deep and up to three feet in ditches. Hail remained visible in some areas up to thirty six hours after the storm passed. Approximately 480,000 acres of crops were badly damaged or completely destroyed. Damage to crops and personal property were estimated to be nearly four million dollars.
August 1, 1983:
During the early afternoon hours, a strong microburst swept across Andrews Air Force Base in Washington, D.C. Although the base anemometer was not calibrated at extreme wind speeds, the peak gust hit 149 mph. It was reported that Air Force One, with President Reagan on board, landed less than 10 minutes prior to the peak gust.
August 1, 2000:
A severe thunderstorm produced large hail up to golf ball size and damaging winds estimated at 90 to 110 mph across northeastern Wyoming and western South Dakota during the evening hours. The Northern foothills of the Black Hills and the communities of Spearfish and Sturgis received the brunt of the storm. Considerable F0 and F1 wind damage (90 to110 mph) occurred in and around Spearfish. The strong winds blew down trees, business and road signs, and damaged tents for the 60th Annual Sturgis Motorcycle Rally, destroying vendor merchandise and mobile homes.
August 1, 2011:
A long-lived supercell thunderstorm developed over southwestern Harding and northern Butte Counties, then tracked eastward across northern Meade, southern Perkins, and central Ziebach Counties. Hail to the size of baseballs and 80 mph wind gusts caused minor damage across the area. This storm caused an estimated $665,000 worth of damage.
August 1, 2012:
The drought conditions intensified and expanded across parts of central South Dakota throughout August resulting in severe to extreme drought conditions. The month began with severe drought conditions across Stanley, Jones, Buffalo, Lyman, southern Hughes, southern Hyde, and southern Hand counties. Severe drought conditions expanded into Dewey County at the end of the month. Extreme drought conditions also expanded into Western Stanley and Jones counties by the end of August. The drought continued to worsen and expand into September. The persistent drought conditions continued to affect livestock producers and agriculture. Soil moisture anomalies showed deficits of 3 to 5 inches. Crop conditions continued to decline throughout the month. Also with the dryness, the fire danger remained high to extreme throughout the month.
|Record Highs:||Record Lows:|
|Aberdeen: 111 (1900)||Aberdeen: 44 (1948)|
|Kennebec: 110 (1955)||Kennebec: 42 (1925)|
|Mobridge: 107 (1936)||Mobridge: 40 (1927)|
|Pierre: 109 (1943)||Pierre: 49 (2009)|
|Sisseton: 101 (1988)||Sisseton: 42 (1973)|
|Timber Lake: 107 (1936)||Timber Lake: 44 (2009)|
|Watertown: 102 (1930)||Watertown: 40 (1927)|
|Wheaton: 103 (1988)||Wheaton: 42 (1927)|
|Aberdeen: 1.96" (1942)|
|Kennebec: 1.19" (1970)|
|Mobridge: 1.57" (1914)|
|Pierre: 1.60" (1970)|
|Sisseton: 1.71" (1964)|
|Timber Lake: 1.41" (1987)|
|Watertown: 1.87" (1987)|
|Wheaton: 2.03" (1975)|