Global Temperature Trend Update—June 2013

Credit: Meryl:dreamstime

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 June 2013:

Global climate trend since Nov. 16, 1978: +0.14 C per decade June temperatures (preliminary) Global composite temp.: +0.30 C (about 0.54 degrees Fahrenheit) above 30-year average for June. Northern Hemisphere: +0.34 C (about 0.61 degrees Fahrenheit) above 30-year average for June. Southern Hemisphere: +0.26 C (about 0.47 degrees Fahrenheit) above 30-year average for June. Tropics: +0.22 C (about 0.40 degrees Fahrenheit) above 30-year average for June. (All temperature anomalies are based on a 30-year average (1981-2010) for the month reported.)

Go here to download the monthly global satellite temperature data since 1978.

UAH climatologist John Christy notes that they are in the process of incorporating data from new satellites so that the newly processed satellite data varies slightly from their earlier data series, e.g., by as much as 0.04 degrees Celsius.

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