Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 706 | 640 | 711 | 712 | 742 | 716 |
| Tmin | 704 | 634 | 707 | 709 | 743 | 715 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 719 | 648 | 713 | 718 | 748 | 725 |
| Υγρασία/Ορατότητα | 119 | 108 | 122 | 142 | 151 | 147 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 739 | 740 | 711 | 732 | 718 | 739 |
| Tmin | 739 | 742 | 714 | 734 | 715 | 738 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 747 | 745 | 721 | 741 | 720 | 745 |
| Υγρασία/Ορατότητα | 151 | 152 | 144 | 147 | 148 | 152 |
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. |
