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Seasonal Anomalies of Global Average Surface Temperature in Autumn (September to November) (1891 - 2015)

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The seasonal anomaly of the global average surface temperature in Autumn (September to November) 2015 (i.e. the average of the near-surface air temperature over land and the SST) was +0.53°C above the 1981-2010 average (+0.86°C above the 20th century average), and was the warmest since 1891. On a longer time scale, global average surface temperatures have risen at a rate of about 0.66°C per century.

Five Warmest Years (Anomalies)

1st. 2015 (+0.53°C), 2nd. 2014 (+0.31°C), 3rd. 2013 (+0.26°C), 4th. 2012 (+0.24°C), 5th. 2006 (+0.22°C)


  • Distribution of Surface Temperature Anomalies