Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 814 | 731 | 788 | 766 | 791 | 761 |
| Tmin | 822 | 742 | 801 | 778 | 802 | 773 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 741 | 669 | 742 | 719 | 742 | 716 |
| Υγρασία/Ορατότητα | 142 | 128 | 144 | 134 | 145 | 138 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 790 | 784 | 772 | 790 | 774 | 798 |
| Tmin | 795 | 793 | 777 | 792 | 774 | 804 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 741 | 775 | 749 | 759 | 717 | 747 |
| Υγρασία/Ορατότητα | 141 | 159 | 166 | 156 | 137 | 147 |
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. |
