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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December 29, 2005:

Heavy snow of 6 to 14 inches fell across parts of north central and most of northeast South Dakota from the morning of the 29th through the early afternoon of the 30th, with 7 to 8 inches of snow across Big Stone and Traverse counties in west central Minnesota from the evening of the 29th through the early afternoon of the 30th. Light rain and freezing rain fell before the snow, creating some slick roads which resulted in some accidents. Some snowfall amounts included 7 inches at Watertown, Big Stone City, and Artichoke Lake; 8 inches at Waubay, Browns Valley, and Wheaton; 9 inches northeast of Isabel and Hecla; 10 inches at Wilmot and Clear Lake; 12 inches at Milbank; and 14 inches at Summit.


Record Highs: Record Lows:
Aberdeen: 59 (1999) Aberdeen: -35 (1917)
Kennebec: 62 (2002) Kennebec: -31 (1917)
Mobridge: 55 (1999) Mobridge: -33 (1917)
Pierre: 61 (1965) Pierre: -21 (1990)
Sisseton: 59 (1999) Sisseton: -20 (1946)
Timber Lake: 53 (1999) Timber Lake: -26 (1916)
Watertown: 53 (1999) Watertown: -32 (1917)
Wheaton: 58 (1999) Wheaton: -33 (1917)

Record Precipitation: Record Snowfall:
Aberdeen: 0.71" (2005) Aberdeen: 4.1" (1972)
Kennebec: 0.49" (1972) Kennebec: 3.5" (1907)
Mobridge: 0.50" (1972) Mobridge: 5.8" (1972)
Pierre: 0.20" (1972) Pierre: 4.7" (1972)
Sisseton: 0.45" (1972) Sisseton: 4.5" (1972)
Timber Lake: 0.71" (1972) Timber Lake: 7.0" (1972)
Watertown: 0.89" (2005) Watertown: 6.0" (2005)
Wheaton: 0.19" (2006) Wheaton: 2.0" (2006)


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