Right after the Met Office forecast a mild winter at the end of October, CET temperatures plummeted to a record low. They are 100% reliably wrong with their seasonal forecasts for the last three years.
http://hadobs.metoffice.com/hadcet/graphs/HadCET_act_graphEX.gif
http://www.dailyexpress.co.uk/
No doubt their other climate forecasts are equally useful.
The Met office should consider hiring a monkey who can throw darts. They could cut their budget to a few hundred bananas a year while increasing the upside probabilities of getting something right in the forecasts.