Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 801 | 717 | 799 | 793 | 821 | 793 |
| Tmin | 776 | 700 | 768 | 769 | 811 | 760 |
| Διάρκεια Ηλιοφάνειας | 300 | 281 | 267 | 249 | 271 | 271 |
| Υετός | 586 | 523 | 600 | 613 | 621 | 621 |
| Υγρασία/Ορατότητα | 107 | 100 | 106 | 125 | 130 | 120 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 816 | 821 | 786 | 803 | 793 | 816 |
| Tmin | 780 | 800 | 765 | 784 | 766 | 805 |
| Διάρκεια Ηλιοφάνειας | 274 | 262 | 277 | 343 | 313 | 276 |
| Υετός | 641 | 638 | 613 | 649 | 612 | 187 |
| Υγρασία/Ορατότητα | 122 | 118 | 108 | 100 | 111 | 118 |
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. |
