A;Tropical;temperature of the coldest month = 18
Af;Tropical - Rainforest;precipitation of the driest month = 60
Am;Tropical - Monsoon;Not (Af) & precipitation of the driest month = 100-mean annual precipitation/25
Aw;Tropical - Savannah;Not (Af) & precipitation of the driest month < 100-mean annual precipitation/25
B;Arid;mean annual precipitation < 10×Pthreshold
BW;Arid - Desert;mean annual precipitation < 5×Pthreshold
BWh;Arid - Desert - Hot;mean annual precipitation < 5×Pthreshold,mean annual temperature >= 18
BWk;Arid - Desert - Hot;mean annual precipitation < 5×Pthreshold,mean annual temperature < 18
BS;Arid - Steppe;mean annual precipitation = 5×Pthreshold
BSh;Arid - Steppe - Hot Summer;mean annual temperature >= 18
BSk;Arid - Steppe - Cold Summer;mean annual temperature < 18
C;Temperate;temperature of the hottest month = 10 & 0 < temperature of the coldest month < 18
Cs;Temperate - Dry Summer;precipitation of the driest month in summer < 40 & precipitation of the driest month in summer < precipitation of the wettest month in winter/3
Csa;Temperate - Dry Summer;precipitation of the driest month in summer < 40 & precipitation of the driest month in summer < precipitation of the wettest month in winter/3,temperature of the hottest month >= 22
Csb;Temperate - Dry Summer;precipitation of the driest month in summer < 40 & precipitation of the driest month in summer < precipitation of the wettest month in winter/3,Not (a) & number of months where the temperature is above 10 = 4
Csc;Temperate - Dry Summer;precipitation of the driest month in summer < 40 & precipitation of the driest month in summer < precipitation of the wettest month in winter/3,Not (a or b) & 1 = number of months where the temperature is above 10 < 4
Cw;Temperate - Dry Winter;precipitation of the driest month in winter < precipitation of the wettest month in summer/10
Cwa;Temperate - Dry Winter;precipitation of the driest month in winter < precipitation of the wettest month in summer/10,temperature of the hottest month >= 22
Cwb;Temperate - Dry Winter;precipitation of the driest month in winter < precipitation of the wettest month in summer/10,Not (a) & number of months where the temperature is above 10 = 4
Cwc;Temperate - Dry Winter;precipitation of the driest month in winter < precipitation of the wettest month in summer/10,Not (a or b) & 1 = number of months where the temperature is above 10 < 4
Cf;Temperate - Without dry season;Not (Cs) or (Cw)
Cfa;Temperate - Without dry season- Hot Summer;temperature of the hottest month >= 22
Cfb;Temperate - Without dry season- Warm Summer;Not (a) & number of months where the temperature is above 10 = 4
Cfc;Temperate - Without dry season- Cold Summer;Not (a or b) & 1 = number of months where the temperature is above 10 < 4
D;Cold;temperature of the hottest month = 10 & temperature of the coldest month = 0
Ds;Cold - Dry Summer;precipitation of the driest month in summer < 40 & precipitation of the driest month in summer < precipitation of the wettest month in winter/3
Dsa;Cold - Dry Summer;precipitation of the driest month in summer < 40 & precipitation of the driest month in summer < precipitation of the wettest month in winter/3,temperature of the hottest month = 22
Dsb;Cold - Dry Summer;precipitation of the driest month in summer < 40 & precipitation of the driest month in summer < precipitation of the wettest month in winter/3,Not (a) & number of months where the temperature is above 10 = 4
Dsc;Cold - Dry Summer;precipitation of the driest month in summer < 40 & precipitation of the driest month in summer < precipitation of the wettest month in winter/3,Not (a, b or d)
Dsd;Cold - Dry Summer;precipitation of the driest month in summer < 40 & precipitation of the driest month in summer < precipitation of the wettest month in winter/3,Not (a or b) & temperature of the coldest month < -38
Dw;Cold - Dry Winter;precipitation of the driest month in winter < precipitation of the wettest month in summer/10
Dwa;Cold - Dry Winter;precipitation of the driest month in winter < precipitation of the wettest month in summer/10,temperature of the hottest month = 22
Dwb;Cold - Dry Winter;precipitation of the driest month in winter < precipitation of the wettest month in summer/10,Not (a) & number of months where the temperature is above 10 = 4
Dwc;Cold - Dry Winter;precipitation of the driest month in winter < precipitation of the wettest month in summer/10,Not (a, b or d)
Dwd;Cold - Dry Winter;precipitation of the driest month in winter < precipitation of the wettest month in summer/10,Not (a or b) & temperature of the coldest month < -38
Df;Cold - Without dry season;Not (Ds) or (Dw)
Dfa;Cold - Without dry season - Hot Summer;temperature of the hottest month = 22
Dfb;Cold - Without dry season - Warm Summer;Not (a) & number of months where the temperature is above 10 = 4
Dfc;Cold - Without dry season - Cold Summer;Not (a, b or d)
Dfd;Cold - Without dry season - Very Cold Winter;Not (a or b) & temperature of the coldest month < -38
E;Polar;temperature of the hottest month < 10
ET;Polar - Tundra;temperature of the hottest month > 0
EF;Polar - Frost;temperature of the hottest month = 0