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 April, 2011.
April temperatures rebound after March's La Nina lows
Global Temperature Report: April 2011
Global climate trend since Nov. 16, 1978: +0.14 C per decade
April temperatures (preliminary)
Global composite temp.: +0.12 C (about 0.22 degrees Fahrenheit) above 30-year average for April.
Northern Hemisphere: +0.20 C (about 0.36 degrees Fahrenheit) above 30-year average for April.
Southern Hemisphere: +0.04 C (about 0.07 degrees Fahrenheit) above 30-year average for April.
Tropics: -0.23 C (about 0.41 degrees Fahrenheit) below 30-year average for April.
March temperatures (revised):
Global Composite: -0.10 C below 30-year average
Northern Hemisphere: -0.07 C below 30-year average
Southern Hemisphere: -0.13 C below 30-year average
Tropics: -0.34 C below 30-year average
(All temperature anomalies are based on a 30-year average (1981-2010) for the month reported.)
Go here to view the satellite data.