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.

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April 14, 1991:

Thawing ice on top of a television tower fell onto buildings below in Garden City, Clark County. The ice had accrued during a freezing rain event on the 11th and 12th. No one was injured, but damage estimates ranged from $35,000-$40,000.


Record Highs: Record Lows:
Aberdeen: 86 (1942) Aberdeen: 9 (1928)
Kennebec: 89 (1942) Kennebec: 7 (1928)
Mobridge: 92 (1942) Mobridge: 8 (1928)
Pierre: 90 (1942) Pierre: 17 (1986)
Sisseton: 84 (1942) Sisseton: 19 (1905)
Timber Lake: 90 (1942) Timber Lake: 7 (1928)
Watertown: 89 (2003) Watertown: -5 (1928)
Wheaton: 88 (2003) Wheaton: 9 (1928)

Record Precipitation: Record Snowfall:
Aberdeen: 0.77" (1986) Aberdeen: 4.1" (1986)
Kennebec: 1.44" (1919) Kennebec: 5.0" (1986)
Mobridge: 1.20" (1912) Mobridge: 5.0" (1986)
Pierre: 1.34" (1986) Pierre: 13.4" (1986)
Sisseton: 2.66" (1986) Sisseton: 2.0" (1968)
Timber Lake: 1.17" (1930) Timber Lake: 2.0" (1986)
Watertown: 3.25" (1912) Watertown: 4.0" (1947)
Wheaton: 2.00" (1986) Wheaton: 3.0" (1961)


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