In case anyone missed by Wind Graphs for January here they are again.
Wind Direction Days (Exeter @ 18:00 BST)
http://s2.excoboard.com/forums/16030...331/370815.jpg
Wind Speed Totals mph (Exeter @ 19:00 BST)
http://s2.excoboard.com/forums/16030...331/370817.jpg
It shows that the wind came predominantly from a Westerly Direction.
Also, it is worth noting that the wind did not come from any direction
from NE through to SE on any day at 18:00 GMT.