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How Did September Temperatures Rank Globally?

October 08, 2012; 5:17 PM

September 2012 was unofficially the 5th warmest September in the satellite record, which began in 1979, according to Remote Sensing Systems (RSS).

RSS measures lower tropospheric temperatures using microwave sounding instrumentation on board satellites.

The RSS image below shows the global temperature anomalies of the lower troposphere for September 2012.

Globally (70 degrees S. to 82.5 N.), September 2012 averaged 0.383 degrees C. or 0.689 degrees F. above normal.

This September 2012 temperature anomaly is the highest since September 2010 and likely reflects the loss of the cooling influence from the recent double-barrel La Nina as temperature anomalies have resumed the upward trend this year.

For the continental USA the temperature anomaly was +0.277 C or +0.499 F.

The northern Hemisphere was quite warm compared to normal, averaging +0.451 C or 0.812 F. for September 2012.

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Acknowledgement

MSU/AMSU data are produced by Remote Sensing Systems.

The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or AccuWeather.com

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