JMA monitors the long-term change of the global average surface temperature anomalies for the purpose of monitoring the global warming. In this page, the long-term changes of annual and monthly anomalies of the global average surface temperature are shown.
[Data and Analysis Method]
The annual anomaly of the global average surface temperature in 2016 (i.e. the average of the near-surface air temperature over land and the SST) is estimated at +0.46°C above the 1981-2010 average (+0.82°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 0.72°C per century.* Note that this figure (hence its rank in the record, either) is still subject to change, because at the moment of this announcement it is only a preliminary result that was calculated based on temperature observations for the period of January to November in 2016.
1st. 2016(+0.46°C), 2nd. 2015(+0.42°C), 3rd. 2014(+0.27°C), 4th. 1998(+0.22°C), 5th. 2013,2010(+0.20°C)