Köppen Climates of the World

Köppen classification of climates
Best known and most used system
Uses mean monthly and annual values of temperature and precipitation
Divides the world into climatic regions in a realistic way
Boundaries Köppen chose were largely based on the limits of certain plant associations

Five principal climate groups
Humid tropical (A)
Dry (B)
Humid middle-latitude with mild winters (C)
Humid middle-latitude with severe winters (D)
Polar (E)
A, C, D, and E climates are defined on the basis of temperature characteristics
Precipitation is the primary criterion for the B group