Hot or not?Meryll: DreamstimeEvery 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 2013:

Global Temperature Report: October 2013

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

October temperatures (preliminary)

Global composite temp.: +0.22 C (about 0.40 degrees Fahrenheit) above 30-year average for October.

Northern Hemisphere: +0.23 C (about 0.41 degrees Fahrenheit) above 30-year average for October.

Southern Hemisphere: +0.22 C (about 0.40 degrees Fahrenheit) above 30-year average for October.

Tropics: +0.04 C (about 0.07 degrees Fahrenheit) above 30-year average for October.

(All temperature anomalies are based on a 30-year average (1981-2010) for the month reported.)

Go here to download monthly global temperature data since 1978.