In September 2011, Arctic sea ice reached its second-lowest minimum extent in the satellite record.

In 2011, annual snow cover extent over Northern Hemisphere continents (including the Greenland ice sheet) averaged 24.7 million square kilometers, which is 0.3 million square kilometers less than the long-term average.

Since the beginning of 2012, drought conditions have worsened along the eastern seaboard, adding to a dry picture for much of the United States.

The U.S. had its fourth warmest winter on record. NOAA's Deke Arndt recaps the 2011-2012 winter.

The U.S. had its fourth warmest winter on record. In this episode of ClimateCast, NOAA’s Deke Arndt recaps the 2011-2012 winter.
 

During spring 2011, the Northern Great Plains experienced record flooding. This video explains how a La Niña climate pattern helped set the stage for this extreme event.

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