Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 587 | 535 | 593 | 574 | 594 | 537 |
| Tmin | 506 | 450 | 502 | 484 | 511 | 494 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 171 | 146 | 168 | 155 | 156 | 162 |
| Υγρασία/Ορατότητα | 94 | 84 | 100 | 93 | 103 | 96 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 552 | 551 | 541 | 567 | 561 | 578 |
| Tmin | 508 | 511 | 495 | 501 | 484 | 500 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 182 | 177 | 186 | 178 | 187 | 198 |
| Υγρασία/Ορατότητα | 86 | 95 | 95 | 107 | 108 | 108 |
Climate data is usually derived from meteorological data of a certain number of years. The actual number of recorded years may vary from only a couple to 50 years or more. The quality of climate data depends on the number of available recorded years. Fewer years means less reliable data. The standart-period for reliable climate data is 30 years. For example, the mean monthly temperature for, let's say January, would ideally calculated from a total number of 930 recorded January-days. However, the usual number of recorded days is much smaller. The table above shows the actual number of recorded days for every parameter measured. |
