Het record werd met maar liefst 1c bijgesteld. Ook bij zonder lijkt mij dat er maar 5 koudere maanden waren, en wel uit roemruchte winters.
Record cold December 2010
5 January 2011 - Provisional figures from the Met Office issued today reveal that December 2010 has become the coldest December across the UK since the national series began in 1910.
The mean temperature for the UK has been -1.0 °C, well below the long term average of 4.2 °C. The previous coldest December in the series was 0.1 °C, in 1981.
The provisional UK, England and Wales figures for December 2010 show that the month was the coldest month since February 1986. In Scotland it was the coldest month since February 1947, and in Northern Ireland the coldest month on record.
December 2010 saw some exceptionally cold and snowy weather across much of the country, with temperatures quite regularly falling to between -10 and -20 °C overnight. Many places also saw temperatures struggling to get above freezing by day.
In the last 100 years, the UK has experienced five colder months - January 1940, February 1947, January 1963, February 1963 and February 1986.
http://www.metoffice.gov.uk/news/releases/archive/2011/cold-dec
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