1. [n]  the weather in some location averaged over some long period of time
2. [n]  the prevailing psychological state; "the climate of opinion"; "the national mood had changed radically since the last election"

Climate
Notes changes within the meteorological arena observed at the end of the twentieth century, citing its causes as a result of human industry and lifestyle and providing essays by leading experts on current study methods and how they can be applied beneficially. (Science & Mathematics)

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1. \Cli"mate\, n. [F. climat, L. clima, -atis, fr. Gr. ?,
   ?, slope, the supposed slope of the earth (from the equator
   toward the pole), hence a region or zone of the earth, fr. ?
   to slope, incline, akin to E. lean, v. i. See {Lean}, v. i.,
   and cf. {Clime}.]
   1. (Anc. Geog.) One of thirty regions or zones, parallel to
      the equator, into which the surface of the earth from the
      equator to the pole was divided, according to the
      successive increase of the length of the midsummer day.
   2. The condition of a place in relation to various phenomena
      of the atmosphere, as temperature, moisture, etc.,
      especially as they affect animal or vegetable life.
   

2. \Cli"mate\, v. i.
   To dwell. [Poetic] --Shak.