This Day in National/World Weather History ...
 20 September 1845 → The "Great Adirondack Tornado," really a family of up to 4 tornadoes, traversed an incredible 275 miles, tearing down many thousands of trees across northern New York and northern Vermont. The damage path from the tornadoes and associated downburst winds was up to a mile and a half wide. Hailstones were as big as hens' eggs.
 20 September 1987 → A vivid rainbow was seen at Fort Simpson, in the Northwest Territories of Canada, during a visit by Pope John Paul II.

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October 6, 1994:

During the late afternoon hours, a small tornado traveled for 3 miles along an intermittent path east of Browns Valley damaging several buildings on a local farmstead. Another tornado touched down east of Wilmot, South Dakota in Roberts County. The tornado was on the ground for eight miles and destroyed several small farm buildings, a garage, damaged farm machinery, blew down a grain bin, and uprooted several trees. Several hogs were killed when their shed was destroyed and minor damage was done to some homes. The tornado drove a 6 foot long 1x6 piece of lumber through the center of a large tree limb.


Record Highs: Record Lows:
Aberdeen: 91 (1993) Aberdeen: 19 (2012)
Kennebec: 96 (1993) Kennebec: 15 (2012)
Mobridge: 92 (1993) Mobridge: 22 (2000)
Pierre: 98 (1993) Pierre: 19 (2012)
Sisseton: 92 (1993) Sisseton: 13 (1935)
Timber Lake: 92 (1993) Timber Lake: 17 (2000)
Watertown: 89 (1993) Watertown: 20 (1935)
Wheaton: 93 (1993) Wheaton: 23 (1954)

Record Precipitation:
Aberdeen: 1.25" (1911) Aberdeen: 2.0" (1911)
Kennebec: 0.66" (1962)
Mobridge: 1.39" (1962) Mobridge: Trace (2012)
Pierre: 2.55" (2007) Pierre: 0.4" (1990)
Sisseton: 0.59" (2008) Sisseton: Trace (2012)
Timber Lake: 1.31" (1994) Timber Lake: 0.1" (2009)
Watertown: 1.25" (1911) Watertown: Trace (2012)
Wheaton: 0.82" (1977)


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