Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 760 | 699 | 772 | 757 | 785 | 771 |
| Tmin | 760 | 702 | 773 | 763 | 787 | 773 |
| Διάρκεια Ηλιοφάνειας | 155 | 113 | 93 | 150 | 93 | 120 |
| Υετός | 94 | 85 | 95 | 111 | 124 | 120 |
| Υγρασία/Ορατότητα | 92 | 83 | 91 | 102 | 121 | 116 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 798 | 796 | 767 | 794 | 776 | 799 |
| Tmin | 804 | 795 | 770 | 796 | 777 | 804 |
| Διάρκεια Ηλιοφάνειας | 93 | 93 | 120 | 93 | 150 | 124 |
| Υετός | 127 | 127 | 120 | 124 | 120 | 124 |
| Υγρασία/Ορατότητα | 122 | 121 | 118 | 116 | 117 | 123 |
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. |
