Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 640 | 572 | 638 | 606 | 634 | 643 |
| Tmin | 643 | 581 | 635 | 613 | 639 | 648 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 94 | 85 | 95 | 103 | 120 | 126 |
| Υγρασία/Ορατότητα | 80 | 75 | 81 | 68 | 81 | 100 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 659 | 642 | 620 | 655 | 629 | 660 |
| Tmin | 663 | 653 | 622 | 658 | 632 | 668 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 133 | 143 | 142 | 125 | 128 | 131 |
| Υγρασία/Ορατότητα | 102 | 91 | 88 | 94 | 94 | 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. |
