| Index | Indicator name | Definition | Unit |
| TXx | Warmest day-Max Tmax | Annual highest TX-Monthly maximum value of daily maximum temperature | ˚C |
| TNx | Warmest night-Max Tmin | Annual highest TN-Monthly maximum value of daily minimum temperature | ˚C |
| TXn | Coldest day-Min Tmax | Annual lowest TX-Monthly minimum value of daily maximum temperature | ˚C |
| TNn | Coldest night-Min Tmin | Annual lowest TN-Monthly minimum value of daily minimum temperature | ˚C |
| TN10p | Cold night frequency | Percentage of days when TN < 10th percentile of 1961-1990 | % |
| TX10p | Cold day frequency | Percentage of days when TX < 10th percentile of 1961-1990 | % |
| TN90p | Warm night frequency | Percentage of days when TN > 90th percentile of 1961-1990 | % |
| TX90p | Warm day frequency | Percentage of days when TX > 90th percentile of 1961-1990 | % |