| A | Tropical humid | Af | Tropical wet | No dry season |
| | Am | Tropical monsoonal | Short dry season; heavy monsoonal rains in other months |
| | Aw | Tropical savanna | Winter dry season |
 |
| B | Dry | BWh | Subtropical desert | Low-latitude desert |
| | BSh | Subtropical steppe | Low-latitude dry |
| | BWk | Mid-latitude desert | Mid-latitude desert |
| | BSk | Mid-latitude steppe | Mid-latitude dry |
|
| C | Mild Mid-Latitude | Csa | Mediterranean | Mild with dry, hot summer |
| | Csb | Mediterranean | Mild with dry, warm summer |
| | Cfa | Humid subtropical | Mild with no dry season, hot summer |
| | Cwa | Humid subtropical | Mild with dry winter, hot summer |
| | Cfb | Marine west coast | Mild with no dry season, warm summer |
| | Cfc | Marine west coast | Mild with no dry season, cool summer |
|
| D | Severe Mid-Latitude | Dfa | Humid continental | Humid with severe winter, no dry season, hot summer |
| | Dfb | Humid continental | Humid with severe winter, no dry season, warm summer |
| | Dwa | Humid continental | Humid with severe, dry winter, hot summer |
| | Dwb | Humid continental | Humid with severe, dry winter, warm summer |
| | Dfc | Subarctic | Severe winter, no dry season, cool summer |
| | Dfd | Subarctic | Severe, very cold winter, no dry season, cool summer |
| | Dwc | Subarctic | Severe, dry winter, cool summer |
| | Dwd | Subarctic | Severe, very cold and dry winter, cool summer |
|
| E | Polar | ET | Tundra | Polar tundra, no true summer |
| | EF | Ice Cap | Perennial ice |
|
| H | Highland | | | |
