This Day in National/World Weather History ...
 18 September 1988 → In Cold Bay, AK, winds up to 75 mph and gusts up to 96 mph were caused by the remnants of Typhoon Hal.
 18 September 1991 → Duluth, MN, saw 2.4" of snow, making it their earliest snow on record and heaviest September snowfall by almost an inch.
 18 September 2003 → Though Hurricane Isabel had reached Category 5 status as it crossed the entire width of the Atlantic Ocean, it had weakened to a Category 2 by the time it made landfall in North Carolina on this date. Nevertheless, flooding was extreme as the storm produced up to 20 inches of rainfall in North Carolina and Virginia.

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April 12, 1970:

Heavy snow, combined with strong winds, created areas of blowing and drifting snow throughout parts of eastern South Dakota. Snow drifts in excess of 2 to 3 ft. blocked many roads in the area. Many schools were closed. The heaviest snowfall recorded for the event, which lasted two days, was 17 inches at Aberdeen. Snowfall in other locations averaged around 12 inches.


Record Highs: Record Lows:
Aberdeen: 85 (1931) Aberdeen: 9 (1961)
Kennebec: 91 (1931) Kennebec: 8 (1990)
Mobridge: 80 (2003) Mobridge: 9 (1957)
Pierre: 83 (2003) Pierre: 12 (1957)
Sisseton: 78 (1941) Sisseton: 14 (1957)
Timber Lake: 80 (2003) Timber Lake: 8 (1957)
Watertown: 89 (1931) Watertown: 4 (1961)
Wheaton: 88 (1931) Wheaton: 13 (1950)

Record Precipitation: Record Snowfall:
Aberdeen: 1.90" (1893) Aberdeen: 13.1" (1970)
Kennebec: 1.35" (1991) Kennebec: 12.0" (1970)
Mobridge: 1.15" (1911) Mobridge: 4.2" (1979)
Pierre: 0.98" (1984) Pierre: 7.0" (1970)
Sisseton: 1.42" (1979) Sisseton: 7.5" (1970)
Timber Lake: 1.00" (1991) Timber Lake: 7.0" (1979)
Watertown: 1.33" (1972) Watertown: 5.2" (1948)
Wheaton: 1.10" (1995) Wheaton: 8.0" (1995)


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