Top 20 for me..
5.6 ... mikeocarroll, Lomond Snowstorm, Ferryhill Weather, summer blizzard
5.5 ... Stationary Front, alexis j 9, Aaron
5.4 ... Roger J Smith, stewfox, Dunstable Snow
5.3 ... SteveB... ... ... ... ----- mean of all 354 years (1659-2012) -----
5.2 ... coram ... ... ... ... ----- mean of 19th century (1801-1900) -----
5.1 ... hillbilly, Pharoah Clutchstraw, Norrance
5.0 ... DAVID SNOW ... ... ... ... ----- mean of 18th century (1701-1800)
4.9 ... 22nov10blast, seabreeze86, Burwell Weather Watch
4.8 ... godber
4.7 ... BARRY
4.6 ... ... ... ... ... ----- mean of (CET portion of) 17th century (1659-1700) -----
4.5 ...
4.4 ... Harve