Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 735 | 650 | 737 | 711 | 750 | 720 |
| Tmin | 723 | 655 | 725 | 696 | 708 | 689 |
| Διάρκεια Ηλιοφάνειας | 86 | 75 | 49 | 78 | 110 | 112 |
| Υετός | 634 | 571 | 643 | 644 | 684 | 656 |
| Υγρασία/Ορατότητα | 76 | 60 | 69 | 61 | 71 | 65 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 712 | 724 | 700 | 717 | 695 | 710 |
| Tmin | 703 | 701 | 703 | 704 | 678 | 711 |
| Διάρκεια Ηλιοφάνειας | 80 | 51 | 81 | 70 | 102 | 77 |
| Υετός | 653 | 661 | 660 | 672 | 642 | 644 |
| Υγρασία/Ορατότητα | 49 | 50 | 64 | 54 | 48 | 57 |
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. |
