Global Temperature Trend Update – 2013 Was Fourth Hottest Year

Every month University of Alabama in Huntsville
climatologists John Christy and Roy Spencer report the latest
global temperature trends from satellite data. According to
Christy, 2013 was the fourth warmest year since the satellite data
era began in 1979, trailing only 1998, 2010 and 2005. Just in time
for the launch of the annual United Nations’ climate change
conference in Warsaw in November, the World Meteorological
Organization reported that 2013 was on track to be the
seventh warmest year since 1850.

Below are the newest satellite data updated through December
2013:

Global climate trend since Nov. 16, 1978: +0.14 C per
decade

December temperatures (preliminary)

Global composite temp.: +0.27 C (about 0.49 degrees Fahrenheit)
above 30-year average for December.

Northern Hemisphere: +0.27 C (about 0.49 degrees Fahrenheit)
above 30-year average for December.

Southern Hemisphere: +0.26 C (about 0.47 degrees Fahrenheit)
above 30-year average for December.

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

Go here
to download monthly satellite temperature data since 1978.