Global Temperature Trend Update: December 2011

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Every month University of Alabama in Huntsville climatologists John Christy and Roy Spencer report the latest global temperature trends from satellite data. Below are the newest data updated through December, 2011. Christy reports that 2011 was the 9th warmest year in 33-year satellite record. 

Global Temperature data 1979 -2011

Global climate trend since Nov. 16, 1978: +0.13 C per decade

December temperatures (preliminary)

Global composite temp.: +0.13 C (about 0.23 degrees Fahrenheit) above 30-year average for December.

Northern Hemisphere: +0.20 C (about 0.36 degrees Fahrenheit) above 30-year average for December.

Southern Hemisphere: +0.06 C (about 0.11 degrees Fahrenheit) above 30-year average for December.

Tropics: +0.04 C (about 0.07 degrees Fahrenheit) above 30-year average for December.

Go here to see the monthly satellite temperature database.