Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 592 | 545 | 594 | 582 | 608 | 592 |
| Tmin | 563 | 516 | 581 | 576 | 606 | 597 |
| Διάρκεια Ηλιοφάνειας | 35 | 36 | 55 | 65 | 76 | 84 |
| Υετός | 136 | 143 | 134 | 111 | 127 | 145 |
| Υγρασία/Ορατότητα | 46 | 50 | 57 | 65 | 70 | 77 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 619 | 638 | 612 | 622 | 600 | 629 |
| Tmin | 578 | 620 | 596 | 600 | 568 | 617 |
| Διάρκεια Ηλιοφάνειας | 49 | 94 | 82 | 68 | 57 | 85 |
| Υετός | 181 | 155 | 148 | 170 | 174 | 165 |
| Υγρασία/Ορατότητα | 67 | 95 | 87 | 74 | 71 | 94 |
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. |
