2010 in the top three warmest years, 2001-2010 warmest 10-year period

2010 in the top three warmest years, 2001-2010 warmest 10-year period

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Published

3 December 2010

The year 2010 is almost certain to rank in the top three warmest years since the beginning of instrumental climate records in 1850. And 2001-2010 is the warmest ten-year period on record, according to data compiled by the World Meteorological Organization.

The global combined sea surface and land surface air temperature for 2010 (January–October) is currently estimated at about 0.55°C or 0.99°F (plus or minus 0.11°C/0.2°F) above the 1961–1990 annual average of 14.00°C/57.2°F.

January-October temperatures were the highest on record, just ahead of the same period in 1998 and 2005. The final ranking of 2010 as a whole will not become clear until November and December data are available in early 2011.

Over the ten years from 2001 to 2010, global temperatures have averaged 0.43°C above the 1961-1990 average, the highest value yet recorded for a 10-year period.

Press release

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