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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June 29, 1927:

This estimated F2 tornado moved northeast from near Claremont, passing along the northwestern edge of Britton. The Claremont area had a $12,000 loss as a large silo was destroyed. A dozen homes had roof damage in Britton.

June 29, 2005:

Heavy rains of three to seven inches fell across far eastern Brown, western and northern Day, and most of Marshall Counties in the early morning and again in the afternoon hours. One location measured five inches of rain in two hours. Many township roads and highways were flooded along with thousands of acres of cropland. Water surrounded several homes resulting in people being rescued. Some of the homes were flooded. Many bridges were damaged and roads and culverts were washed out. In Day County, 30 roads were washed out and 15 bridges needed repairs. Some rainfall amounts include 5.04 inches in Britton, 3.34 at 8N of Columbia, and 2.08 in Aberdeen. Total June rainfall for some locations in Marshall and Day Counties was between 11 and 12 inches. The flooding continued into early July before receding by July 10th.


Record Highs: Record Lows:
Aberdeen: 107 (1931) Aberdeen: 42 (1900)
Kennebec: 108 (1963) Kennebec: 40 (1985)
Mobridge: 109 (2002) Mobridge: 43 (1950)
Pierre: 108 (1963) Pierre: 41 (1985)
Sisseton: 100 (1963) Sisseton: 43 (1900)
Timber Lake: 108 (2002) Timber Lake: 40 (1985)
Watertown: 102 (1931) Watertown: 39 (1925)
Wheaton: 103 (1921) Wheaton: 40 (1925)

Record Precipitation:
Aberdeen: 2.08" (2005)
Kennebec: 0.82" (1918)
Mobridge: 1.85" (1993)
Pierre: 0.75" (1991)
Sisseton: 3.55" (1971)
Timber Lake: 1.76" (1993)
Watertown: 1.89" (1971)
Wheaton: 2.11" (1916)


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