Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 697 | 622 | 699 | 667 | 694 | 676 |
| Tmin | 696 | 628 | 699 | 669 | 689 | 683 |
| Διάρκεια Ηλιοφάνειας | 255 | 228 | 221 | 152 | 284 | 262 |
| Υετός | 634 | 577 | 632 | 615 | 636 | 623 |
| Υγρασία/Ορατότητα | 51 | 43 | 51 | 41 | 41 | 50 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 710 | 705 | 698 | 707 | 682 | 712 |
| Tmin | 711 | 711 | 698 | 712 | 675 | 719 |
| Διάρκεια Ηλιοφάνειας | 174 | 273 | 363 | 268 | 276 | 273 |
| Υετός | 669 | 669 | 648 | 666 | 648 | 677 |
| Υγρασία/Ορατότητα | 60 | 60 | 71 | 63 | 50 | 68 |
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. |
