The Collaborative International Dictionary of English v.0.48:

Anemography \An`e*mog"ra*phy\, n. [Gr. 'a`nemos wind + -graphy.]
   1. A description of the winds.
      [1913 Webster]

   2. The art of recording the direction and force of the wind,
      as by means of an anemograph.
      [1913 Webster]

WordNet (r) 3.0 (2006):

anemography
    n 1: recording anemometrical measurements