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 29, 1942:

A tornado (F3) moved East through Marshall County, destroying almost every building on a farm Northeast of Kidder. Barns were heavily damaged on two other farms. 1 person was reported killed, with 5 others injured.


Record Highs: Record Lows:
Aberdeen: 92 (1934) Aberdeen: 16 (1966)
Kennebec: 93 (1934) Kennebec: 11 (1958)
Mobridge: 89 (1934) Mobridge: 19 (1958)
Pierre: 91 (2001) Pierre: 18 (1958)
Sisseton: 96 (1934) Sisseton: 16 (1958)
Timber Lake: 90 (1926) Timber Lake: 19 (1958)
Watertown: 89 (1934) Watertown: 14 (1907)
Wheaton: 90 (2004) Wheaton: 20 (1958)

Record Precipitation: Record Snowfall:
Aberdeen: 2.50" (1895) Aberdeen: 3.4" (1950)
Kennebec: 1.40" (1911) Kennebec: 2.0" (1950)
Mobridge: 1.11" (1953) Mobridge: 9.8 (1950)
Pierre: 1.05" (1953) Pierre: 1.6" (1950)
Sisseton: 1.30" (2009) Sisseton: 6.3" (1996)
Timber Lake: 0.81" (1953) Timber Lake: 5.5" (1950)
Watertown: 1.22" (1991) Watertown: 2.0" (1990)
Wheaton: 0.89" (1994) Wheaton: 9.0" (1994)


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