Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 707 | 611 | 665 | 705 | 735 | 716 |
| Tmin | 707 | 616 | 664 | 710 | 740 | 712 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 681 | 610 | 687 | 678 | 711 | 692 |
| Υγρασία/Ορατότητα | 85 | 64 | 64 | 124 | 142 | 137 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 733 | 721 | 685 | 697 | 688 | 708 |
| Tmin | 733 | 728 | 687 | 698 | 686 | 709 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 707 | 711 | 688 | 701 | 660 | 683 |
| Υγρασία/Ορατότητα | 137 | 126 | 110 | 98 | 87 | 92 |
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. |
