Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 633 | 578 | 639 | 647 | 667 | 646 |
| Tmin | 631 | 578 | 637 | 646 | 660 | 649 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 104 | 95 | 116 | 135 | 145 | 130 |
| Υγρασία/Ορατότητα | 78 | 78 | 82 | 103 | 102 | 108 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 659 | 660 | 654 | 669 | 647 | 673 |
| Tmin | 656 | 662 | 653 | 662 | 639 | 667 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 146 | 136 | 132 | 159 | 147 | 138 |
| Υγρασία/Ορατότητα | 107 | 109 | 112 | 102 | 104 | 115 |
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. |
