This Day in National/World Weather History ...
 30 July 1119 → The earliest tornado reported on the European mainland struck Vysehrad, Czechia (today Prague, Czech Republic). It destroyed the palace of a Czech duke.
 30 July 1997 → Two waterspouts moved onshore in northern Virginia Beach, VA. One tracked into Norfolk.
 30 July 1999 → At nine o'clock in the morning Chicago recorded its highest ever dew point temperature of 82 degrees. The temperature at the time was 88, resulting in a heat index of 108. The dew point is an indication of the amount of moisture in the air.

This Day in Weather History Archive

On This Day In

                   Weather History...


August 17, 1961:

Heavy rain was observed during the overnight hours on the 17th through the early morning hours on the 18th. Some rainfall amounts include, 4.13 inches in Clark, 2.52 inches 1 W of Summit, 2.50 in Andover, 2.20 in Waubay, 2.15 in Wilmot, 2.12 in Wheaton, and 2.10 in Clear Lake.

August 17, 2007:

An estimated four to six inches of rain and hail to the size of baseballs caused localized flooding between Piedmont and Tilford in Meade County, especially near poor drainage areas and at a barricade along a frontage road. The water washed over several roads and was several inches deep over Interstate 90, forcing law enforcement officials to close it for a couple of hours. Heavy rain estimated at four to six inches fell west of Hermosa in Custer County between 6 pm and 8 pm MST. Battle and Grace Coolidge Creeks overflowed their banks and several dry canyons filled with water and drained into the creeks. State highways 40 and 36 were flooded in numerous spots. A river gauge on Battle Creek just east of Hermosa crested at 14.91 feet at 9 pm, rising from 2.63 ft at 7:30 pm and above the flood stage of 8.0 feet. About six inches of water covered Highway 79 at the Battle Creek bridge. A railroad bridge about 3/4 mile downstream became clogged with debris and water rose behind the embankment and flooded six homes. At about 8:30 pm MST, a section of the embankment failed, flooding a new subdivision on the other side. All of the approximately 20 houses were damaged; three homes were washed off their foundations, and one of those houses was carried a half a mile east of the subdivision by the flowing water. There were no injuries.


Record Highs: Record Lows:
Aberdeen: 104 (1976) Aberdeen: 39 (2012)
Kennebec: 107 (1973) Kennebec: 37 (1943)
Mobridge: 105 (2003) Mobridge: 39 (1943)
Pierre: 108 (1976) Pierre: 41 (2012)
Sisseton: 102 (1976) Sisseton: 42 (2012)
Timber Lake: 105 (1973) Timber Lake: 41 (1944)
Watertown: 98 (1976) Watertown: 39 (1943)
Wheaton: 103 (1988) Wheaton: 45 (1963)

Record Precipitation:
Aberdeen: 3.25" (1990)
Kennebec: 1.33" (1930)
Mobridge: 4.43" (2007)
Pierre: 0.71" (1940)
Sisseton: 1.87" (2005)
Timber Lake: 1.21" (1940)
Watertown: 1.60" (2005)
Wheaton: 1.50" (1948)


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.