Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 740 | 668 | 744 | 717 | 743 | 719 |
| Tmin | 743 | 670 | 743 | 718 | 744 | 718 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 714 | 644 | 714 | 691 | 713 | 690 |
| Υγρασία/Ορατότητα | 184 | 167 | 185 | 178 | 184 | 179 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 742 | 743 | 746 | 764 | 747 | 774 |
| Tmin | 742 | 746 | 747 | 766 | 747 | 773 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 713 | 717 | 722 | 742 | 720 | 744 |
| Υγρασία/Ορατότητα | 184 | 185 | 206 | 209 | 207 | 214 |
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. |
