December 11, 1932 
Very cold weather prevailed along the West Coast. San Francisco received 0.8 inch of snow, and at the airport the temperature dipped to 20 degrees. At Sacramento CA, the mercury dipped to 17 degrees to establish an all-time record low for that location. Morning lows were below freezing from the 9th to the 15th at Sacramento, and the high on the 11th was just 34 degrees. The cold wave dealt severe damage to truck crops and orange groves in the Sacramento Valley. (David Ludlum) (The Weather Channel) 

December 11, 1987 
Low pressure over southwestern Ontario, Canada, brought snow and gusty winds to the North Central U.S. Winds gusted to 62 mph at Riverton WY. Snow and high winds in eastern North Dakota reduced visibilities to less than one hundred feet at times. Warm weather prevailed across the Southern Plains Region. Half a dozen cities reported record high temperatures for the date, including Del Rio TX with a reading of 89 degrees. Laredo TX and Kingsville TX tied for honors as hot spot in the nation with afternoon highs of 92 degrees. (The National Weather Summary) 

December 11, 1988 
Arctic cold invaded the central and eastern U.S. Sault Ste Marie MI reported a record low of 14 degrees below zero, and International Falls MN was the cold spot in the nation with a low of 25 degrees below zero. Temperatures remained below zero all day over parts of eastern Upper Michigan and northern New England. (The National Weather Summary) 

December 11, 1989 
Strong Santa Ana winds developed across southern California and parts of central California. Winds in Kern County of central California gusted to 100 mph near Grapevine. The high winds reduced visibilities to near zero in the desert areas, closing major interstate highways east of Ontario CA. (Storm Data) (The National Weather Summary) 

December 11, 1993
High winds, with gusts to 50 MPH, caused power outages and blocked roads all across north Georgia. One fatality occurred in downtown Atlanta when a 10 foot beam was blown off an elevated walkway under construction and struck a pedestrian in the head. Another pedestrian was also injured from the same incident. (NWS Atlanta)

December 11, 2008 
A rare snowstorm swept across parts of south Louisiana and Mississippi, blanketing the area with snow. Nearly 8 inches of snow fell over parts of Louisiana. These conditions caused schools and bridges to close and left thousands of residents without power (Associated Press). (NCDC) 

December 11, 2010 
The "Pineapple Express" - a meteorological event where southwest winds bring warm, moist air to the U.S. West Coast - produced record rainfall to the Pacific Northwest during December 11th-12th. Seattle experienced record daily rainfall two days in a row. The Seattle-Tacoma International Airport recorded 1.42 inches of rain on the 11th, breaking the old daily record of 1.32 inches set in 1955. The next day, 2.19 inches fell, breaking the daily record of 1.70 inches set in 1966. The Stillaguamish River in western Washington state reached 21.06 feet at Arlington, tying the record set in November 2006. Flood stage for the river is 14 feet. The storm system also brought record warmth to the area. On December 14th, the temperature at Seattle-Tacoma International Airport reached 57, breaking the old daily record of 55 set in 2004. (NCDC) 

Data courtesy of WeatherForYou

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