It is very unusual for a period of easterly winds to bring such heavy and prolonged snowfall. In fact for November, the amounts of snow this year have been the heaviest and most widespread in the UK since 1993 and the deepest November snow since 1965. Some of the highest snowfalls at 0900 on 30 November were at Nunraw, Scottish Borders with 44 cm and Kielder Castle, Northumberland with 40 cm. One reason why we have seen such large amounts of snow is that the pressure is much lower than normal allowing the air to rise and form deeper clouds, therefore producing heavier showers.
This cold spell has produced a minimum temperature of minus 18 °C in Wales and a provisional UK mean temperature which indicates that this November is likely to be the coldest across the UK since November 1993.
http://www.metoffice.gov.uk/news/releases/archive/2010/why-so-cold
17 years.
If it is caused by AGW it will be warmer at night and the Winters will not be as cold. So it will affect the Maple harvest which requires Cold Winters.
That was the claim a few years ago!!!