The monthly anomaly of the global average surface temperature in January 2016 (i.e. the average of the near-surface air temperature over land and the SST) was +0.52°C above the 1981-2010 average (+0.91°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 0.75°C per century.
1st. 2016 (+0.52°C), 2nd. 2015, 2007, 2002 (+0.29°C), 5th. 2010 (+0.21°C)