Stats from last year's winter:

Winter 2011/12
October: 1 frost
November: 2 frosts
December: 3 frosts, 1 morning of very wet snow
January: 7 frosts
February: 11 frosts, 3 snowfalls, max depth: 14.5cm. 8 days of laying snow

Very one sided winter but with an excellent two week spell at the end of January/ start of February.