Here is a chart showing the winter CET since 1962 (the year shown represents the year in which January and February fall).
The last 3 winters have all been cold:
2009: 3.5C
2010: 2.4C
2011: 3.1C
The last time we had three consecutive winters of 3.5C or less was 1985-1987
There have not been four consecutive winters that cold in recent times. The closest was 1962-1965 (3.6C, -0.3C, 3.5C, 3.3C)
So it would be quite special if we have another cold winter this year.