The month also tied with January 2007 as the third warmest monthly highest departure from average for any month in the 136-year record, it said.
During the month, record warmth was observed across South America and parts of Europe, Asia, and Africa. South America, Europe, and Africa experienced their warmest August average temperature since 1910.
Other months that have broken its monthly temperature record in 2015 were February, March, May, June, July, and August, said the report.
Besides, the combined global average land and ocean surface temperatures for January through August and June through August were also record warm.
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