By Isobel Lang, Sky News Weather Presenter
This year is on course to be the hottest on record both for the UK and globally, with human impact the likely cause, say experts.
The UK's mean temperature from the beginning of January to late November is 1.6C above the long-term average, making it the warmest in records dating back to 1910, according to the Met Office, although a cold December could change this.
This year is also set to be one of the warmest on record in the Central England Temperature series, which stretches back to 1659 and is the longest instrumental temperature series in the world.
Around the world, the year is set to be one of the hottest, with global temperatures around 0.57C above the long-term average of 14C from January to October, just ahead of the previous record set in 2010 of 0.56C.
If November and December follow suit, 2014 is likely to be the hottest year on record, ahead of 2010, 2005 and 1998, the World Meteorological Organisation (WMO) has said.
The Met Office has cautioned against placing too much emphasis on a single record temperature and long-term climate change.
But a new research technique indicated breaking the record is much more likely to occur as a result of human greenhouse gas emissions.
Peter Stott, head of climate attribution at the Met Office, said: "Our research shows current global average temperatures are highly unlikely in a world without human influence on the climate.
"Human influence has also made breaking the UK temperature record about 10 times more likely."
Energy and Climate Change Secretary Ed Davey said: "More record warm temperatures in the UK and across the world are yet more evidence that we need to act urgently to prevent dangerous climate change.
"UK actions such as our doubling of renewable electricity and our stretching targets for cutting carbon are a good start but we must be frank and acknowledge there is more to do."
It has also been one of the wettest year's for the UK on record, with 1162 mm of rain between 1 January and 25 November.
Average rainfall in December would make 2014 the fourth wettest year in records dating back to 1910.
But a very wet month could still break the UK record set in 2000 of 1337 mm.
Experts say world temperatures show there is "no standstill in global warming".
WMO secretary-general Michel Jarraud said: "What we saw in 2014 is consistent with what we expect from a changing climate - record-breaking heat combined with torrential rainfall and floods destroyed livelihoods and ruined lives."
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