The monthly anomaly of the global average surface temperature in October 2011 (i.e. the average of the near-surface air temperature over land and the SST) was +0.11°C above the 1981-2010 average (+0.44°C above the 20th Century average), and was the 9th warmest since 1891. On a longer time scale, global average surface temperatures have risen at a rate of about 0.61°C per century.
1st. 2003(+0.25°C), 2nd. 2006(+0.23°C), 3rd. 1997(+0.21°C), 4th. 2009,2005(+0.19°C)