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 25, 1914:

An estimated F2 tornado moved east from 6 miles southeast of Isabel. Three small homes and two barns were destroyed. Twelve tons of hay was said to have vanished.

June 25, 1969:

On the northeast side of Groton, an F2 to near F3 tornado, destroyed a large grain elevator and uprooted huge trees. Four people were hospitalized. Estimated property damage was a quarter million dollars. Also, locally heavy rains caused flash flooding in Sully and Hughes Counties. A bridge near Harrold was washed out. Some rainfall amounts include; 5.34 inches at 23N of Highmore; 4.24 at 2N of Onaka; 4.14 at 12SSW of Harrold; 3.90 at 1NW of Faulkton; and 3.73 inches at Ipswich. Unofficial reports of 6 inches fell in and around Harrold.


Record Highs: Record Lows:
Aberdeen: 106 (1936) Aberdeen: 41 (1961)
Kennebec: 111 (1936) Kennebec: 35 (1958)
Mobridge: 108 (1936) Mobridge: 37 (1929)
Pierre: 107 (1936) Pierre: 39 (1958)
Sisseton: 103 (1936) Sisseton: 43 (1958)
Timber Lake: 105 (1936) Timber Lake: 36 (1958)
Watertown: 106 (1936) Watertown: 38 (1897)
Wheaton: 106 (1988) Wheaton: 40 (1928)

Record Precipitation:
Aberdeen: 2.08" (1969)
Kennebec: 1.24" (2003)
Mobridge: 1.92" (1978)
Pierre:1.15" (1910)
Sisseton: 1.10" (1956)
Timber Lake: 1.71" (1969)
Watertown: 0.97" (1930)
Wheaton: 1.63" (2006)


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