Global Temperature Trend Update: April 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 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.