"Along with the temperature, punters are plunging on our weather related bets. If this winter is as cold as predicted it could easily be our worst weather result ever, eclipsing even our current meteorological record payout, when temperatures hit 100 degrees in 2003 costing us a six figure sum", said Hill's spokesman Rupert Adams.

White Christmas betting Rules: 'That one flake of snow will fall on Met office monitoring stations over the 24 hr period of the 25th of December'.

William Hill White Christmas Betting: 4/1 Aberdeen, 4/1 Glasgow, 9/2 London, 6/1 Cardiff.
16/1 that the lowest recorded temperature in England will be beaten (-26.1C, Jan 10 1982, Shropshire).
16/1 that the lowest temperature in Scotland will be beaten (-27.2C, Jan 10th 1982, Aberdeenshire).
22/1 for the record in Wales to be beaten (-23.3C, 21st Jan, 1940 Powys).
100/1 that the Thames will freeze over between Westminster Bridge and Tower Bridge.
100/1 Big Ben Fails to chime due to being frozen solid.

I think i'll stick to placing losing bets on the football instead of the weather. (although i'm tempted by the Big Ben one)