The first 10 months of this year have been the hottest since records began to be kept more than 130 years ago, CNN reported, quoting data from the US National Oceanic and Atmospheric Administration.
This is despite the bitter cold of an early winter in parts of the US recently.
The average global temperature between January and October has been 0.68 deg C higher than the 20th century's average global temperature of 14.1 deg C.
October this year was the hottest on record globally, the report said.
"Record warmth for the year-to-date was particularly notable across much of northern and western Europe, parts of Far East Russia, and large areas of the north-eastern and western equatorial Pacific Ocean," the agency was quoted as saying.
"It is also notable that record warmth was observed in at least some areas of every continent and major ocean basin around the world."
This article was first published on Dec 1, 2014.
Get The New Paper for more stories.