Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 673 | 609 | 673 | 653 | 671 | 652 |
| Tmin | 674 | 617 | 681 | 654 | 680 | 657 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 127 | 117 | 127 | 123 | 125 | 120 |
| Υγρασία/Ορατότητα | 111 | 100 | 113 | 106 | 110 | 110 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 677 | 679 | 659 | 672 | 650 | 678 |
| Tmin | 675 | 677 | 654 | 670 | 648 | 682 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 126 | 124 | 123 | 127 | 126 | 127 |
| Υγρασία/Ορατότητα | 115 | 115 | 111 | 109 | 103 | 114 |
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. |
