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

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                   Weather History...


June 4, 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.

June 4, 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.

June 4, 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.


Record Highs: Record Lows:
Aberdeen: 101 (1933) Aberdeen: 34 (1954)
Kennebec: 98 (1968) Kennebec: 35 (1954)
Mobridge: 95 (1939) Mobridge: 37 (1943)
Pierre: 94 (1939) Pierre: 38 (1954)
Sisseton: 95 (1934) Sisseton: 35 (1945)
Timber Lake: 98 (1914) Timber Lake: 35 (1943)
Watertown: 92 (1933) Watertown: 34 (1951)
Wheaton: 97 (1968) Wheaton: 35 (1928)

Record Precipitation:
Aberdeen: 1.67" (1896)
Kennebec: 1.25" (1991)
Mobridge: 3.12" (1942)
Pierre: 1.74" (1991)
Sisseton: 1.68" (1991)
Timber Lake: 2.36" (1942)
Watertown: 2.66" (1980)
Wheaton: 1.98" (1980)


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