February is set to be the coldest month on record in Scotland after bookies slashed odds as an amber weather warning for snow is issued.Temperatures could drop to -10C on Monday night in parts of the country as Storm Darcy brings freezing easterly winds which lead to blizzards, snow drifts and treacherous ice.Leading bookmaker Ladbrokes cut the odds on this winter ending as the coldest since records began in the UK to 1/3 as temperatures continue to drop.It comes as an amber weather warning for