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 February, 2011:
Global climate trend since Nov. 16, 1978: +0.14 C per decade
February temperatures (preliminary)
Global composite temp.: -0.02 C (about 0.04 degrees Fahrenheit) below 30-year average for February.
Northern Hemisphere: -0.04 C (about 0.07 degrees Fahrenheit) below 30-year average for February.
Southern Hemisphere: ±0.00 C (about 0.00 degrees Fahrenheit) above/below 30-year average for February.
Tropics: -0.35 C (about 0.63 degrees Fahrenheit) below 30-year average for February.
January temperatures (revised):
Global Composite: -0.01 C below 30-year average
Northern Hemisphere: -0.06 C below 30-year average
Southern Hemisphere: +0.04 C above 30-year average
Tropics: -0.35 C below 30-year average
(All temperature anomalies are based on a 30-year average (1981-2010) for the month reported.)
Go here to see the monthly data.