Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 699 | 609 | 663 | 652 | 668 | 653 |
| Tmin | 692 | 614 | 665 | 648 | 667 | 648 |
| Διάρκεια Ηλιοφάνειας | 131 | 103 | 102 | 104 | 110 | 107 |
| Υετός | 595 | 542 | 595 | 579 | 594 | 576 |
| Υγρασία/Ορατότητα | 138 | 125 | 132 | 128 | 132 | 134 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 671 | 695 | 680 | 684 | 650 | 667 |
| Tmin | 677 | 696 | 693 | 692 | 662 | 671 |
| Διάρκεια Ηλιοφάνειας | 118 | 137 | 150 | 130 | 117 | 108 |
| Υετός | 588 | 634 | 635 | 654 | 595 | 164 |
| Υγρασία/Ορατότητα | 144 | 163 | 175 | 163 | 145 | 142 |
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. |
