Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 786 | 712 | 799 | 773 | 799 | 762 |
| Tmin | 786 | 717 | 788 | 775 | 804 | 767 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 776 | 702 | 775 | 755 | 783 | 750 |
| Υγρασία/Ορατότητα | 141 | 132 | 146 | 140 | 142 | 137 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 787 | 817 | 811 | 824 | 796 | 788 |
| Tmin | 794 | 813 | 818 | 821 | 795 | 792 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 782 | 810 | 819 | 833 | 797 | 779 |
| Υγρασία/Ορατότητα | 137 | 156 | 177 | 179 | 163 | 142 |
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. |
