| BIO1 | Annual mean temperature |
| BIO2 | Mean diurnal range ((mean of monthly (max temp-min temp)) |
| BIO3 | Isothermaity (BIO2/BIO7) × 100 |
| BIO4 | Temperature seasonality (standard deviation × 100) |
| BIO5 | Max temperature of the warmest month |
| BIO6 | Min temperature of the coldest month |
| BIO7 | Temperature annual range (BIO5-BIO6) |
| BIO8 | Mean temperature of wettest quarter |
| BIO9 | Mean temperature of driest quarter |
| BIO10 | Mean temperature of warmest quarter |
| BIO11 | Mean temperature of coldest quarter |
| BIO12 | Annual precipitation |
| BIO13 | Precipitation wettest month |
| BIO14 | Precipitation driest month |
| BIO15 | Precipitation seasonality (coefficient of variation) |
| BIO16 | Precipitation of wettest quarter |
| BIO17 | Precipitation driest quarter |
| BIO18 | Precipitation warmest quarter |
| BIO19 | Precipitation coldest quarter |