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 October 2014.
Global Temperature Report: October 2014
Global climate trend since Nov. 16, 1978: +0.14 C per decade
October temperatures (preliminary)
Global composite temp.: +0.37 C (about 0.67 degrees Fahrenheit) above 30-year average for October.
Northern Hemisphere: +0.34 C (about 0.61 degrees Fahrenheit) above 30-year average for October.
Southern Hemisphere: +0.40 C (about 0.72 degrees Fahrenheit) above 30-year average for October.
Tropics: +0.19 C (about 0.34 degrees Fahrenheit) above 30-year average for October.
Spencer
Notes on data released Nov. 4, 2014:
October 2014 tied as the warmest October in the 36-year global satellite temperature record, according to Dr. John Christy, a professor of atmospheric science and director of the Earth System Science Center at The University of Alabama in Huntsville. With a global average temperature that was 0.37 C (about 0.67 degrees Fahrenheit) warmer than seasonal norms, October 2014 tied October 2012.
Warmest Octobers (1979-2014) (Warmer than seasonal norms)
1. 2014 +0.37 C 2012 +0.37 C 3. 2005 +0.36 C 4. 2006 +0.32 C 5. 2003 +0.30 C 2010 +0.30 C 6. 1998 +0.29 C 2013 +0.29 C 8. 2009 +0.27 C 9. 2004 +0.25 C 10. 2007 +0.19 C
Go here to see monthly lower troposphere temperature data since 1978.
