Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 751 | 696 | 775 | 736 | 760 | 730 |
| Tmin | 766 | 695 | 766 | 721 | 746 | 719 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 155 | 141 | 155 | 145 | 148 | 141 |
| Υγρασία/Ορατότητα | 138 | 127 | 139 | 126 | 126 | 121 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 747 | 755 | 737 | 760 | 732 | 745 |
| Tmin | 741 | 746 | 718 | 739 | 719 | 744 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 138 | 149 | 143 | 148 | 141 | 126 |
| Υγρασία/Ορατότητα | 122 | 127 | 123 | 122 | 118 | 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. |
