This Day in National/World Weather History ...
 23 October 1091 → England's earliest known tornado was also one of its strongest on record. It has been rated as an EF4, and devastated central London. The church at St. Mary le Bow was badly damaged with four rafters, each 26 feet long, driven 22 feet into the ground. Other churches in the area were demolished, as were over 600 houses. London Bridge was destroyed.
 23 October 1761 → A violent hurricane struck New England, causing tremendous damage in Rhode Island and Massachusetts.
 23 October 1920 → Tetsuya Fujita, inventor of the Fujita Scale, was born.
 23 October 2002 → Visibility was reduced to less than 100 meters during the Australian Dust Storm. It was the worst dust storm in 30 years.

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October 7, 1970:

On October 7th through the 9th, 1970 a record breaking early season snow storm hit parts of southern South Dakota. Snowfall of 5 to 9 inches was common across the southwest and south central on the 7th. Late on October 8th and into the 9th of 1970 the southeast portion of the state was hit. Vermillion received 6 inches of snow on the 9th and that is the largest amount ever recorded there for so early in the season. The 5 inches that fell in Sioux Falls is the earliest significant snow on record for the area. The heavy snows also affected portions of western Iowa and western Minnesota. Amounts of up to 7 inches were recorded in northwest Iowa. The heavy, wet snow snapped many tree branches and downed power lines. Sioux city recorded their heaviest snow for so early in the season. The snow was very wet and heavy, but melted quickly over the next several days.


Record Highs: Record Lows:
Aberdeen: 88 (2006) Aberdeen: 14 (1952)
Kennebec: 95 (1942) Kennebec: 15 (2000)
Mobridge: 91 (1956) Mobridge: 19 (2000)
Pierre: 91 (2003) Pierre: 20 (2000)
Sisseton: 88 (2003) Sisseton: 16 (1976)
Timber Lake: 86 (2010) Timber Lake: 14 (2000)
Watertown: 86 (2003) Watertown: 15 (1952)
Wheaton: 91 (1993) Wheaton: 21 (1976)

Record Precipitation:
Aberdeen: 1.13" (1977) Aberdeen: 3.3" (1970)
Kennebec: 1.28" (1946) Kennebec: 9.0" (1970)
Mobridge: 0.88" (1977) Mobridge: 2.9" (1946)
Pierre: 1.14" (1946) Pierre: 3.0" (1970)
Sisseton: 1.50" (1977)
Timber Lake: 1.14" (1994) Timber Lake: 4.5" (1946)
Watertown: 1.58" (1977) Watertown: 2.5" (1970)
Wheaton: 1.48" (1949)


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